EP0102015A2 - Electric hot-plate - Google Patents

Electric hot-plate Download PDF

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Publication number
EP0102015A2
EP0102015A2 EP83107990A EP83107990A EP0102015A2 EP 0102015 A2 EP0102015 A2 EP 0102015A2 EP 83107990 A EP83107990 A EP 83107990A EP 83107990 A EP83107990 A EP 83107990A EP 0102015 A2 EP0102015 A2 EP 0102015A2
Authority
EP
European Patent Office
Prior art keywords
hotplate
electric
flexible
electric hotplate
connecting lines
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP83107990A
Other languages
German (de)
French (fr)
Other versions
EP0102015B1 (en
EP0102015A3 (en
Inventor
Karl Fischer
Felix Schreder
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
EGO Elektro Geratebau GmbH
Original Assignee
EGO Elektro Gerate Blanc und Fischer GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from US06/411,458 external-priority patent/US4467181A/en
Application filed by EGO Elektro Gerate Blanc und Fischer GmbH filed Critical EGO Elektro Gerate Blanc und Fischer GmbH
Publication of EP0102015A2 publication Critical patent/EP0102015A2/en
Publication of EP0102015A3 publication Critical patent/EP0102015A3/en
Application granted granted Critical
Publication of EP0102015B1 publication Critical patent/EP0102015B1/en
Expired legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B3/00—Ohmic-resistance heating
    • H05B3/68—Heating arrangements specially adapted for cooking plates or analogous hot-plates
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B3/00—Ohmic-resistance heating
    • H05B3/02—Details
    • H05B3/06—Heater elements structurally combined with coupling elements or holders
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B2203/00—Aspects relating to Ohmic resistive heating covered by group H05B3/00
    • H05B2203/016—Heaters using particular connecting means

Definitions

  • the invention relates to an electric hotplate with a hotplate body and a lower cover, and an insulating piece protruding from the cover for the passage of the electrical hotplate connections through the cover, heat-resistant, insulated, flexible connecting lines leading to a common, freely moveable connecting piece (75) which are long enough to place the connector outside the area of the electric hotplate.
  • an electric hotplate with flexible connecting lines is known, the ends of which are connected by a common connecting piece, which contained plug or screw terminals. These lines can be bent back over the center of the hotplate and the connector can lie in a recess in the underside cover of the hotplate. For transport and storage, the electric hotplate with the connector does not need more space than without.
  • the object of the invention is to further develop this electric hotplate with a view to making it even easier to assemble and assembling, and for even greater security in connection.
  • the connecting piece contains holding devices which hold the flexible connecting lines close to their ends and keep the ends aligned in the manner of connecting pins or lugs parallel to one another, the ends being designed for insertion into a connecting base. It is therefore no longer necessary to provide special connecting terminals or pins, but the ends themselves form the connecting pins, which can be connected to the connecting base by screw or preferably plug connections. Nevertheless, the entire hotplate connection can be carried out with a handle or a gripper actuation of an industrial robot.
  • the connection can preferably also be made non-rotatable in that the connecting piece or the connecting lines are designed or arranged such that the connection can be made in only one, namely the correct, orientation.
  • the connector may include channels into which the ends of the flexible leads are inserted, which are then secured in the channels by deformation. Versions with wire end ferrules are particularly suitable for this.
  • a feed-through part can preferably be provided on the hotplate, which leads the electrical connections through the hotplate cover. This can be formed in two parts so that it connects the somewhat thickened connection point between the flexible connecting line and the inner solid connecting wires in a recess and thereby prevents e.g. by pressing the connecting wires from the inside, contact occurs between the inner solid connecting wires and the hotplate body.
  • connection base is designed in the form of a connection block which has the corresponding plug connections for all hot plates of a cooking appliance.
  • This connection block can then be connected to a further connection block via a multi-core flexible line and in turn be connected there with plug connections and the switches, controllers etc. can then also be provided there.
  • the assembly is largely fully automatic, in that the "connecting straps" consisting of the parallel flexible connecting wires are initially tilted towards the inside of the hotplate, so that the hotplate can be inserted from above into the mounting plate of the cooking appliance. Then the connector can be inserted almost with a gripper and into the connection block attached centrally to the hot plates below the mounting plate.
  • FIGS. 1 and 2 show an electric hotplate 11 with a hotplate body 12 made of cast iron with a flat, closed upper cooking surface 13.
  • the hotplate is provided with spiral ribs which form spiral grooves between them, in which heating coils 19 made of resistance wire in a ceramic mass 20 are embedded.
  • Terminal pins 80 are welded to the coils 19 and protrude from the ceramic mass 20.
  • Connection lines 81 in the form of solid wires are welded to the connection pins 80 and run into channels 57 of an insulating feed-through part 51.
  • a starting w ä r t s directed, substantially cylindrical rim 21 extends around the circumference of the hotplate body around and a flange-like edge region of a circular, consisting of the deformed sheet metal cover 24 lies on the lower edge of the rim 21.
  • the edge portion of the cover 24 includes an upward, that is, towards the cooking surface, which rests on the inside of the edge 21 and thus centers the cover.
  • the insulating bushing 51 protrudes through the cover 24, which is supported on the inside of the cover by a step and which has channels 57 arranged next to one another, into which flexible connecting lines 58 project, which are surrounded by a heat-resistant insulation 82.
  • the lead-through part 51 consists of two parts or halves which are designed to match one another and form the channels 57 between them. An inner recess 101 is formed within each channel, thus forming an enlarged section of the channel. As shown in FIG. 2, the insulation 82 protrudes into the channels and thereby forms a complete insulation of the connecting wires 58.
  • the flexible connections 58 consisting of strands are connected to the solid connecting wires 81 by an end-face weld.
  • the connection or welding point 100 has a larger diameter than the connecting wires 58, 81 and the channel 57.
  • the connections 58, 81 are thus positioned in the recess 101 in such a way that they do not move in the axial direction can move significantly, so that it is in particular prevented that the connections are pressed inwards or upwards and come into contact with the hotplate body 12, which could lead to a short circuit.
  • the welded connection 100 could also be made by pressed-on or soldered sleeves, the sleeves having an outwardly projecting flange or a shoulder, which ensure the axial fixing.
  • Both halves of the feed-through part 51 can be held in the correct alignment with one another by projections and recesses (not shown) on their contact surfaces. They are held together by insertion into the opening of the cover 24 and are held in their position by projections or feet 103 which are formed on each half of the feed-through part and which are supported on the underside of the hob body 12.
  • the basic shape of the feed-through part is elongated and aligned in the circumferential direction of the hotplate. It protrudes through the cover in the area of a formation.
  • the flexible hotplate connecting lines 58 are mechanically connected to one another at their outer ends by a connecting piece 75 made of ceramic insulating material. Due to the arrangement of the insulating piece in the radial direction approximately in the middle of the ring-shaped heated area of the hotplate and the dimensioning of the connecting lines, the outer edge 97 of the connecting piece is preferably at a maximum distance of less than one hotplate radius from the hotplate outer edge and can be flexibly adapted to the installation conditions , wherein the adjacent connecting lines act like a flexible band that allows easy pivoting and greater mobility of the connector in the vertical direction, but more restricted rotation and lateral movement.
  • the feed-through part 51 diametrically opposite and at a corresponding radial distance from the hotplate center there is a depression 61 in the cover, the dimensions of which are chosen so that they protrude Section of the lead-through part 51 can be accommodated if the hotplates are stacked on the back and offset from one another by 180 ° without the connecting lines 58 having to be bent too sharply.
  • the width of the depression is substantially larger than that of the lead-through part, so that the connecting lines 58 can be folded inwards and the connecting piece 75 can lie in the depression 61 next to the insulating piece. But it is also possible to store the connector 75 folded outward in about the same plane as the hotplate.
  • each free end of each flexible connecting line 58 is inserted into a channel 83 of the connecting piece 75.
  • the channels 83 are arranged side by side and consist of holes which penetrate the connector 75, which is made of electrically insulating material and has the shape of a strip arranged transversely to the lines 58 and mechanically connects them near their ends so that the connecting lines 58 a Form a band or a strip.
  • Each of the holes has a circular cross section and a section 84 of larger and a section 85 of smaller diameter with an intermediate shoulder 86. At the mouth of the section 85 of each hole, two lateral recesses 87 are provided in the front surface 97 of the connector 75.
  • Each free end 90 of a connecting line is provided with a wire end sleeve 88 which consists of a sheet metal sleeve which surrounds the end of the wire strand.
  • the insulation is gripped by two sheet metal tabs 98 at its end.
  • the wire end sleeve 88 is made from a sheet metal blank that is first bent into the cross-sectional shape of a U. After the wire has been inserted into the U, it is bent into a circular shape (FIG. 4). The also U-shaped pre-formed tabs 89 are pressed tightly around the insulation, which can be pushed on in the form of a loose insulating sleeve.
  • the insulator 89 strikes the shoulder 86 and positions the ferrule in the longitudinal direction.
  • the sleeve passes through the narrower portion 85 of the channel, but protrudes with its longer portion beyond surface 97.
  • the final deformation of the wire end sleeve 88 is carried out in its section projecting over the front surface 97.
  • the sleeve is pressed into the kidney shape shown in FIG. 5, which is wider but lower than the previous circular shape (FIG. 4).
  • Fig. 5 shows that the lateral portions of the sleeve 88 are pressed into the recesses 87, which fix the ferrule both against pulling out of the channel and against rotation.
  • the wire end sleeve 90 thereby forms connection pins which can be inserted into each connection part and fixed there by means of screws, plug-in connection springs or the like.
  • Fig. 2 shows a connection base 91 made of insulating material which contains inner chambers which are accessible from the outside through openings from both sides.
  • a metal cage 92 is received in each of the chambers and receives a C-shaped, double spring clip 93, one free end 94 of which is sharply cut off while the other end 95 is bent inwards.
  • the ferrule 88 When the ferrule 88 is inserted from one side and a lead wire 96 from the other side, they are both clamped and electrically conductively pressed against the bottom of the cage 92 by the spring clip attached to their sharp end 94 is self-locking. At its bent end 95 it snaps into an obliquely or transversely arranged groove 98, which is pressed into the sleeve 88, whereby a sufficiently strong connection is made. If one tries to pull the wires out of the connection base from both sides, however, the wire end sleeve 88 is pulled out first (and only). It is therefore impossible for the uninsulated free end of the supply line 96 which is connected to the household network and is therefore live to be exposed.
  • the free ends of the flexible connecting lines are converted into a multiple plug, which can easily be connected with a connection base or with individual spring or screw connections.
  • the plugs or pins are held exactly parallel to each other and with the flat sides of the sleeve pointing in the desired direction.
  • the invention makes it possible to use automatic devices, for example industrial robots, to mount the hot plates in a cooking appliance, including the making of the electrical connections.
  • the measures which rule out a twisted connection could also be projections or recesses on the connecting piece which are gripped or removed by the gripper of the industrial robot. It is possible to use ferrules in which the parts forming the connecting pins do not consist of wires surrounded by a sleeve, but of metal tabs.
  • Fig. 6 shows the underside of a cooking appliance, such as the mounting plate 104 for a stove or a hob, which contains four hot plates 11 of the type described above. Their connectors 75 are inserted into a connector block 105, which has the basic shape of a cross with the connectors on its four end faces.
  • the connections can contain clamping elements, as described in connection with FIG. 2, but which are only intended for the introduction of the connections 58 from the hotplate, while the supply wires 96 to the household network or the controllers of the hotplate contain in a flexible multi-core cable 106 protruding from the center of the terminal block 105.
  • connection block 105 is attached to the mounting plate 104 in the center between the four hot plates 11, so that there is a minimal distance from the hot plates there, so that the connection to the block 105 can be made with relatively short connecting lines 58.
  • connection block 105 and the connection block 109 are attached to the mounting plate and connected to one another by the prefabricated cable 106.
  • the hotplates 11 can now be automatically inserted into the openings in the mounting plate 104 from above.
  • the connections are then completed by inserting the connection pieces 75 into the terminal block 105. It is particularly advantageous that there is no uninsulated part on the underside, so that an insulating cover for the underside of the cooking appliance can be dispensed with if necessary.

Abstract

1. Electric hotplate with a hotplate body (12) and a lower cover (24), as well as an insulating piece (51) projecting from the cover for the passage or the electric hotplate connections (58, 81) through said cover, thermally stably insulated, flexible leads (58), which are sufficiently long for arranging the connecting piece (75) thereof outside the area of the electric hotplate (11) lead to a common, freely movably arranged connecting piece (75) and the ends (90) of the flexible leads (58) are constructed for insertion in a connection socket (91, 105), characterized in that the connecting piece (75) has retaining means keeping the ends (90) of flexible leads (58) aligned parallel to one another in the manner of connecting pins or lugs and that the ends (90) project through the connecting piece (75) and out of the latter on the connection side thereof.

Description

Die Erfindung betrifft eine Elektrokochplatte mit einem Kochplattenkörper und einer unteren Abdeckung, sowie einem aus der Abdeckung hinausragenden Isolierstück für die Durchführung der elektrischen Kochplattenanschlüsse durch die Abdeckung, wobei wärmebeständig isolierte, flexible Anschlußleitungen zu einem gemeinsamen, frei beweglich angeordneten Anschlußstück (75) führen, die ausreichend lang sind, um das Anschlußstück außerhalb des Bereichs der Elektrokochplatte anzuordnen.The invention relates to an electric hotplate with a hotplate body and a lower cover, and an insulating piece protruding from the cover for the passage of the electrical hotplate connections through the cover, heat-resistant, insulated, flexible connecting lines leading to a common, freely moveable connecting piece (75) which are long enough to place the connector outside the area of the electric hotplate.

Aus der US-PS 1 093 754 und der GB-PS 904 672 ist es bekannt, isolierte flexible Anschlußleitungen für Elektrokochplatten vorzusehen, die normalerweise sehr lang sind und einzelne freie Enden hatten. Diese Anschlußleitungen störten, waren schwierig zu montieren und mußten dabei meist gekürzt werden. Sie führten ferner teilweise zur Kurzschlüssen.From US-PS 1 093 754 and GB-PS 904 672 it is known to provide insulated flexible connecting lines for electric hot plates, which are normally very long and had individual free ends. These connection lines were annoying, were difficult to assemble and usually had to be shortened. They also sometimes led to short circuits.

Aus der EP-A-007 0042 ist eine Elektrokochplatte mit flexiblen Anschlußleitungen bekannt, deren Enden durch ein gemeinsames Verbindungsstück verbunden sind, das Steck- oder Schraubanschlußklemmen enthielt. Diese Leitungen können über die Mitte der Kochplatte zurückgebogen werden und das Anschlußstück kann in einer Vertiefung der Unterseiten-Abdeckung der Kochplatte liegen. Zum Transport und zur Lagerung braucht also die Elektrokochplatte mit dem Anschlußstück nicht mehr Platz als ohne.From EP-A-007 0042 an electric hotplate with flexible connecting lines is known, the ends of which are connected by a common connecting piece, which contained plug or screw terminals. These lines can be bent back over the center of the hotplate and the connector can lie in a recess in the underside cover of the hotplate. For transport and storage, the electric hotplate with the connector does not need more space than without.

Aufgabe der Erfindung ist es, diese Elektrokochplatte im Hinblick auf einer noch leichtere Herstellung und Montierbarkeit sowie auf noch größere Sicherheit beim Anschluß weiterzubilden.The object of the invention is to further develop this electric hotplate with a view to making it even easier to assemble and assembling, and for even greater security in connection.

Diese Aufgabe wird dadurch gelöst, daß das Anschlußstück Halteeinrichtungen enthält, die die flexiblen Anschlußleitungen nahe ihren Enden festhalten und die Enden nach Art von Anschlußstiften bzw. -fahnen parallel zueinander ausgerichtet halten, wobei die Enden zur Einführung in einen Anschlußsockel ausgebildet sind. Es ist also nicht mehr notwendig, besondere Anschlußklemmen oder Stifte vorzusehen, sondern die Enden bilden selbst die Anschlußstifte, die durch Schraub- oder vorzugsweise Steckverbindungen mit dem Anschlußsockel verbunden werden können. Trotzdem ist der gesamte Kochplattenanschluß mit einem Handgriff oder einer Greiferbetätigung eines Industrieroboters vorzunehmen. Vorzugsweise kann der Anschluß auch dadurch verdrehsicher ausgeführt werden, daß das Anschlußstück oder die Anschlußleitungen so ausgebildet oder angeordnet sind, daß sich der Anschluß in nur einer, nämlich der richtigen, Ausrichtung vornehmen läßt.This object is achieved in that the connecting piece contains holding devices which hold the flexible connecting lines close to their ends and keep the ends aligned in the manner of connecting pins or lugs parallel to one another, the ends being designed for insertion into a connecting base. It is therefore no longer necessary to provide special connecting terminals or pins, but the ends themselves form the connecting pins, which can be connected to the connecting base by screw or preferably plug connections. Nevertheless, the entire hotplate connection can be carried out with a handle or a gripper actuation of an industrial robot. The connection can preferably also be made non-rotatable in that the connecting piece or the connecting lines are designed or arranged such that the connection can be made in only one, namely the correct, orientation.

Bei einer bevorzugten Ausführung kann das Anschlußstück Kanäle enthalten, in die die Enden der flexiblen Anschlußleitungen eingeführt werden, die dann durch Deformation in den Kanälen befestigt werden. Insbesondere sind dazu Ausführungen mit Aderendhülsen geeignet. Bevorzugt kann an der Kochplatte ein Durchführungsteil vorgesehen sein, das die elektrischen Anschlüsse durch die Kochplattenabdeckung hindurchführt. Dieses kann so zweiteilig ausgebildet sein, daß es zwischen sich die etwas verdickte Verbindungsstelle zwischen der flexiblen Anschlußleitung und den inneren Massiv-Anschlußdrähten in einer Ausnehmung anschließt und dadurch verhindert, daß z.B. durch Druck auf die Anschlußdrähte von innen ein Kontakt zwischen den inneren massiven Verbindungsdrähten und dem Kochplattenkörper eintritt.In a preferred embodiment, the connector may include channels into which the ends of the flexible leads are inserted, which are then secured in the channels by deformation. Versions with wire end ferrules are particularly suitable for this. A feed-through part can preferably be provided on the hotplate, which leads the electrical connections through the hotplate cover. This can be formed in two parts so that it connects the somewhat thickened connection point between the flexible connecting line and the inner solid connecting wires in a recess and thereby prevents e.g. by pressing the connecting wires from the inside, contact occurs between the inner solid connecting wires and the hotplate body.

Eine besonders einfache gegebenenfalls auch automatische Montage kann vorgenommen werden, wenn der Anschlußsockel in Form eines Anschlußblocks ausgeführt ist, der für alle Kochplatten eines Kochgerätes die entsprechenden Steckanschlüsse aufweist. Dieser Anschlußblock kann dann über eine mehradrige flexible Leitung mit einem weiteren Verbindungsblock verbunden sein und dort wiederum mit Steckverbindungen angeschlossen werden und dort können dann auch die Schalter, Regler etc. vorgesehen sein. Die Montage ist dabei weitgehend vollautomatisch möglich, indem die aus den parallel zueinander verlaufenden flexiblen Anschlußdrähten bestehenden "Anschlußbänder" anfangs zum Inneren der Kochplatte hingekippt sind, so daß die Kochplatte von oben her in die Einbauplatte des Kochgerätes eingesetzt werden kann. Danach kann mit einem Greifer das Anschlußstück fast und in den mittig zu den Kochplatten unterhalb der Einbauplatte befestigten Anschlußblock eingeführt werden.A particularly simple and possibly also automatic assembly can be carried out if the connection base is designed in the form of a connection block which has the corresponding plug connections for all hot plates of a cooking appliance. This connection block can then be connected to a further connection block via a multi-core flexible line and in turn be connected there with plug connections and the switches, controllers etc. can then also be provided there. The assembly is largely fully automatic, in that the "connecting straps" consisting of the parallel flexible connecting wires are initially tilted towards the inside of the hotplate, so that the hotplate can be inserted from above into the mounting plate of the cooking appliance. Then the connector can be inserted almost with a gripper and into the connection block attached centrally to the hot plates below the mounting plate.

Weitere Vorteile und Merkmale gehen aus den Unteransprüchen und der nachfolgenden Beschreibung zusammen mit den Zeichnungen hervor.Further advantages and features emerge from the subclaims and the following description together with the drawings.

Ausführungsbeispiele der Erfindung sind in der Zeichnung dargestellt und werden im folgenden näher erläutert. Es zeigen:

  • Fig. 1 eine Unteransicht einer Elektrokochplatte und ihres Anschlusses,
  • Fig. 2 einen Teilschnitt durch die Kochplatte und ihren Anschluß,
  • Fig. 3 einen Schnitt nach der Linie III in Fig. 2,
  • Fig. 4
  • und 5 Teilschnitte nach den Linien V und VI in Fig. 3 und
  • Fig. 6 eine teilweise abgebrochene Unteransicht eines Elektrokochgerätes mit vier Kochplatten.
Embodiments of the invention are shown in the drawing and are explained in more detail below. Show it:
  • 1 is a bottom view of an electric hotplate and its connection,
  • 2 shows a partial section through the hotplate and its connection,
  • 3 shows a section along the line III in FIG. 2,
  • Fig. 4
  • and 5 partial sections along lines V and VI in Fig. 3 and
  • Fig. 6 is a partially broken bottom view of an electric cooking appliance with four hot plates.

Fig. 1 und 2 zeigen eine elektrische Kochplatte 11 mit einem Kochplattenkörper 12 aus Gußeisen mit einer flachen geschlossenen oberen Kochfläche 13. In ihrer beheizten Ringzone ist die Kochplatte mit spiraligen Rippen versehen, die zwischen sich spiralige Nuten bilden, in denen Heizwendeln 19 aus Widerstandsdraht in einer Keramikmasse 20 eingebettet sind. Anschlußstifte 80 sind mit den Wendeln 19 verschweißt und ragen aus der Keramikmasse 20 heraus. Anschlußleitungen 81 in Form von Massivdrähten sind an die Anschlußstifte 80 geschweißt und laufen in Kanäle 57 eines isolierenden Durchführungsteils 51 hinein.1 and 2 show an electric hotplate 11 with a hotplate body 12 made of cast iron with a flat, closed upper cooking surface 13. In its heated ring zone, the hotplate is provided with spiral ribs which form spiral grooves between them, in which heating coils 19 made of resistance wire in a ceramic mass 20 are embedded. Terminal pins 80 are welded to the coils 19 and protrude from the ceramic mass 20. Connection lines 81 in the form of solid wires are welded to the connection pins 80 and run into channels 57 of an insulating feed-through part 51.

Ein abwärtsgerichteter, im wesentlichen zylindrischer Rand 21 erstreckt sich um den Umfang des Kochplattenkörpers herum und ein flanschartiger Randbereich einer kreisförmigen, aus verformtem Blech bestehenden Abdeckung 24 liegt auf der unteren Kante des Randes 21. Der Randbereich der Abdeckung 24 enthält eine aufwärts, das heißt zur Kochfläche hin gerichtete Stufe, die an der Innenseite des Randes 21 anliegt und damit die Abdeckung zentriert.A starting w ä r t s directed, substantially cylindrical rim 21 extends around the circumference of the hotplate body around and a flange-like edge region of a circular, consisting of the deformed sheet metal cover 24 lies on the lower edge of the rim 21. The edge portion of the cover 24 includes an upward, that is, towards the cooking surface, which rests on the inside of the edge 21 and thus centers the cover.

Durch die Abdeckung 24 ragt das isolierende Durchführungsteil 51 hindurch, das sich auf der Innenseite der Abdeckung mit einer Stufe abstützt und daß nebeneinander angeordnete Kanäle 57 aufweist, in die flexible Anschlußleitungen 58 hineinragen, die von einer gut wärmebeständigen Isolation 82 umgeben sind.The insulating bushing 51 protrudes through the cover 24, which is supported on the inside of the cover by a step and which has channels 57 arranged next to one another, into which flexible connecting lines 58 project, which are surrounded by a heat-resistant insulation 82.

Das Durchführungsteil 51 besteht aus zwei Teilen oder Hälften, die zueinander passend ausgebildet sind und zwischen sich die Kanäle 57 bilden. Innerhalb jedes Kanals ist eine innere Ausnehmung 101 gebildet, die also einen vergrößerten Abschnitt des Kanals bildet. Wie Fig. 2 zeigt, ragt die Isolation 82 in die Kanäle hinein und bildet dadurch eine vollständige Isolierung der Anschlußdrähte 58. Die flexiblen, aus Litzen bestehenden Anschlüsse 58 sind durch eine stirnseitige Schweißung mit den massiven Anschlußdrähten 81 verbunden. Die Verbindungs- bzw. Schweißstelle 100 hat einen größeren Durchmesser als die Anschlußdrähte 58, 81 und der Kanal 57. Infolge der zweiteiligen Ausbildung des Durchführungsteils 51 sind somit die Anschlüsse 58, 81 in der Ausnehmung 101 so positioniert, daß sie sich in axialer Richtung nicht wesentlich bewegen können, so daß es insbesondere verhindert wird, daß die Anschlüsse nach innen bzw. oben gedrückt werden und in Kontakt mit dem Kochplattenkörper 12 kommen, was zu einem Kurzschluß führen könnte. Anstelle der Schweißverbindung 100 könnte die Verbindung auch durch aufgepreßte oder gelötete Hülsen erfolgen, wobei die Hülsen eine nach außenstehenden Flansch oder eine Schulter aufweisen könnten, die für die axiale Festlegung sorgen.The lead-through part 51 consists of two parts or halves which are designed to match one another and form the channels 57 between them. An inner recess 101 is formed within each channel, thus forming an enlarged section of the channel. As shown in FIG. 2, the insulation 82 protrudes into the channels and thereby forms a complete insulation of the connecting wires 58. The flexible connections 58 consisting of strands are connected to the solid connecting wires 81 by an end-face weld. The connection or welding point 100 has a larger diameter than the connecting wires 58, 81 and the channel 57. As a result of the two-part design of the lead-through part 51, the connections 58, 81 are thus positioned in the recess 101 in such a way that they do not move in the axial direction can move significantly, so that it is in particular prevented that the connections are pressed inwards or upwards and come into contact with the hotplate body 12, which could lead to a short circuit. Instead of the welded connection 100 could also be made by pressed-on or soldered sleeves, the sleeves having an outwardly projecting flange or a shoulder, which ensure the axial fixing.

Beide Hälften des Durchführungsteils 51 können durch nicht dargestellte Vorsprünge und Ausnehmungen an ihren Kontaktflächen in der richtigen Ausrichtung zueinander gehalten werden. Sie werden durch Einführung in die öffnung der Abdeckung 24 zusammengehalten und sind in ihrer Position durch Vorsprünge oder Füße 103 gehalten, die an jeder Hälfte des Durchführungsteils angeformt sind und die sich an der Unterseite des Kochpla.ttenkörpers 12 abstützen. Die Grundform des Durchführungsteils ist langgestreckt und es in Umfangsrichtung der Kochplatte ausgerichtet. Durch die Abdeckung ragt es im Bereich einer Ausformung.Both halves of the feed-through part 51 can be held in the correct alignment with one another by projections and recesses (not shown) on their contact surfaces. They are held together by insertion into the opening of the cover 24 and are held in their position by projections or feet 103 which are formed on each half of the feed-through part and which are supported on the underside of the hob body 12. The basic shape of the feed-through part is elongated and aligned in the circumferential direction of the hotplate. It protrudes through the cover in the area of a formation.

Die flexiblen Kochplattenanschlußleitungen 58 sind an ihren Außenenden mechanisch durch ein Anschlußstück 75 aus keramischem Isoliermaterial miteinander verbunden. Durch die Anordnung des Isolierstücks in radialer Richtung etwa in der Mitte des ringförmigen beheizten Bereichs der Kochplatte und die Bemessung der Anschlußleitungen liegt die Außenkante 97 des Anschlußstücks vorzugsweise maximal in einem Abstand von weniger als einem Kochplattenradius von der Kochplattenaußenkante entfernt und läßt sich flexibel den Einbaubedingungen anpassen, wobei die nebeneinander liegenden Anschlußleitungen wie ein flexibles Band wirken, das eine leichte Schwenkbarkeit und größere Beweglichkeit des Anschlußstücks in vertikaler Richtung zuläßt, jedoch eine Verdrehung und seitliche Bewegung stärker beschränkt.The flexible hotplate connecting lines 58 are mechanically connected to one another at their outer ends by a connecting piece 75 made of ceramic insulating material. Due to the arrangement of the insulating piece in the radial direction approximately in the middle of the ring-shaped heated area of the hotplate and the dimensioning of the connecting lines, the outer edge 97 of the connecting piece is preferably at a maximum distance of less than one hotplate radius from the hotplate outer edge and can be flexibly adapted to the installation conditions , wherein the adjacent connecting lines act like a flexible band that allows easy pivoting and greater mobility of the connector in the vertical direction, but more restricted rotation and lateral movement.

Dem Durchführungsteil 51 diametral gegenüber und in entsprechendem radialen Abstand von der Kochplattenmitte befindet sich in der Abdeckung eine Vertiefung 61, die in ihren Abmessungen so gewählt ist, daß sie den vorspringenden Abschnitt des Durchführungsteils 51 aufnehmen kann, wenn die Kochplatten Rückseite an Rückseite und um 180° gegeneinander versetzt aufeinander gestapelt werden, ohne daß die Anschlußleitungen 58 zu scharf abgeknickt werden müßten. Die Breite der Vertiefung ist wesentlich größer als die des Durchführungsteils, so daß die Anschlußleitungen 58 nach innen geklappt werden können und das Anschlußstück 75 neben dem Isolierstück in der Vertiefung 61 liegen kann. Es ist aber auch möglich, das Anschlußstück 75 nach außen geklappt etwa in einer Ebene mit der Kochplatte zu lagern.The feed-through part 51 diametrically opposite and at a corresponding radial distance from the hotplate center there is a depression 61 in the cover, the dimensions of which are chosen so that they protrude Section of the lead-through part 51 can be accommodated if the hotplates are stacked on the back and offset from one another by 180 ° without the connecting lines 58 having to be bent too sharply. The width of the depression is substantially larger than that of the lead-through part, so that the connecting lines 58 can be folded inwards and the connecting piece 75 can lie in the depression 61 next to the insulating piece. But it is also possible to store the connector 75 folded outward in about the same plane as the hotplate.

Jedes freie Ende jeder flexiblen Anschlußleitung 58 ist in einem Kanal 83 des Anschlußstücks 75 eingeführt. Die Kanäle 83 sind nebeneinander angeordnet und bestehen aus Löchern, die das Anschlußstück 75 durchdringen, das aus elektrisch isolierendem Material besteht und die Form einer quer zu den Leitungen 58 angeordneten Leiste besitzt und diese nahe ihren Enden mechanisch so miteinander verbindet, daß die Anschlußleitungen 58 ein Band oder einen Streifen bilden. Jedes der Löcher hat einen kreisförmigen Querschnitt und einen Abschnitt 84 von größerem und einen Abschnitt 85 von kleinerem Durchmesser mit einer dazwischen liegenden Schulter 86. An der Mündung des Abschnittes 85 jedes Loches sind zwei seitliche Ausnehmungen 87 in der Frontfläche 97 des Anschlußstücks 75 vorgesehen.Each free end of each flexible connecting line 58 is inserted into a channel 83 of the connecting piece 75. The channels 83 are arranged side by side and consist of holes which penetrate the connector 75, which is made of electrically insulating material and has the shape of a strip arranged transversely to the lines 58 and mechanically connects them near their ends so that the connecting lines 58 a Form a band or a strip. Each of the holes has a circular cross section and a section 84 of larger and a section 85 of smaller diameter with an intermediate shoulder 86. At the mouth of the section 85 of each hole, two lateral recesses 87 are provided in the front surface 97 of the connector 75.

Jedes freie Ende 90 einer Anschlußleitung ist mit einer Aderendhülse 88 versehen, die aus einer Blechhülse besteht, die das Ende des Drahtstranges umgibt. Die Isolierung wird von zwei Blechlaschen 98 an ihrem Ende umgriffen. Die Aderendhülse 88 ist aus einem Blechzuschnitt hergestellt, der zuerst in die Querschnittsform eines U gebogen ist. Nach dem Einführen der Ader in das U wird er in eine Kreisform zusammengebogen (Fig. 4). Die ebenfalls U-förmig vorgeformtm Laschen 89 werden dicht um die Isolierung, die in Form einer losen Isolierhülse aufgeschoben sein kann, gepreßt.Each free end 90 of a connecting line is provided with a wire end sleeve 88 which consists of a sheet metal sleeve which surrounds the end of the wire strand. The insulation is gripped by two sheet metal tabs 98 at its end. The wire end sleeve 88 is made from a sheet metal blank that is first bent into the cross-sectional shape of a U. After the wire has been inserted into the U, it is bent into a circular shape (FIG. 4). The also U-shaped pre-formed tabs 89 are pressed tightly around the insulation, which can be pushed on in the form of a loose insulating sleeve.

Wenn die Aderendhülse 88 nun in den Kanal 83 eingeführt wird, schlägt das Isolierende 89 an der Schulter 86 und positioniert die Endhülse in Längsrichtung. Die Hülse läuft durch den engeren Teil 85 des Kanals hindurch, aber ragt mit seinem längeren Abschnitt über die Fläche 97 hinaus. Nach der Einführung wird die endgültige Verformung der Aderendhülse 88 in ihrem über die Frontfläche 97 hervorragenden Abschnitt vorgenommen. Dazu wird die Hülse in die in Fig. 5 dargestellte Nierenform verpreßt, die breiter, aber niedriger ist als die vorherige Kreisform (Fig. 4). Fig. 5 zeigt, daß die seitlichen Abschnitte der Hülse 88 in die Ausnehmungen 87 gepreßt werden, die die Aderendhülse sowohl gegen Herausziehen aus dem Kanal als auch gegen Verdrehung festlegen. Die Aderendhülse 90 bildet dadurch Anschlußstifte, die in jedes Anschlußteil eingeführt und dort mittels Schrauben, Steckanschlußfedern oder dergleichen festgelegt werden können.When the ferrule 88 is now inserted into the channel 83, the insulator 89 strikes the shoulder 86 and positions the ferrule in the longitudinal direction. The sleeve passes through the narrower portion 85 of the channel, but protrudes with its longer portion beyond surface 97. After insertion, the final deformation of the wire end sleeve 88 is carried out in its section projecting over the front surface 97. For this purpose, the sleeve is pressed into the kidney shape shown in FIG. 5, which is wider but lower than the previous circular shape (FIG. 4). Fig. 5 shows that the lateral portions of the sleeve 88 are pressed into the recesses 87, which fix the ferrule both against pulling out of the channel and against rotation. The wire end sleeve 90 thereby forms connection pins which can be inserted into each connection part and fixed there by means of screws, plug-in connection springs or the like.

Fig. 2 zeigt einen Anschlußsockel 91 aus Isoliermaterial, der innere Kammern enthält, die von außen durch Öffnungen von beiden Seiten her zugänglich sind. In jeder der Kammern ist ein Metallkäfig 92 aufgenommen, der eine C-förmige, doppelte Federklemme 93 aufnimmt, deren eines freies Ende 94 scharf abgeschnitten ist, während das andere Ende 95 nach innen gebogen ist.Fig. 2 shows a connection base 91 made of insulating material which contains inner chambers which are accessible from the outside through openings from both sides. A metal cage 92 is received in each of the chambers and receives a C-shaped, double spring clip 93, one free end 94 of which is sharply cut off while the other end 95 is bent inwards.

Wenn die Aderendhülse 88 von einer Seite eingeführt wird und ein Zuleitungsdraht 96 von der anderen Seite, werden sie beide festgeklemmt und elektrisch leitend an den Boden des Käfigs 92 durch die Federklemme angedrückt, die an ihrem scharfen Ende 94 selbstsichernd ist. An ihrem abgebogenen Ende 95 schnappt sie in eine schräg bzw. querangeordnete Nut 98 ein, die in die Hülse 88 gepreßt ist, wodurch eine ausreichend starke Verbindung hergestellt wird. Wenn man versucht, die Drähte von beiden Seiten aus dem Anschlußsockel zu ziehen, so wird jedoch zuerst (und nur) die Aderendhülse 88 herausgezogen. Es ist daher unmöglich, daß das unisolierte freie Ende der ans Haushaltsnetz angeschlossenen und daher stromführenden Zuleitung 96 frei liegt.When the ferrule 88 is inserted from one side and a lead wire 96 from the other side, they are both clamped and electrically conductively pressed against the bottom of the cage 92 by the spring clip attached to their sharp end 94 is self-locking. At its bent end 95 it snaps into an obliquely or transversely arranged groove 98, which is pressed into the sleeve 88, whereby a sufficiently strong connection is made. If one tries to pull the wires out of the connection base from both sides, however, the wire end sleeve 88 is pulled out first (and only). It is therefore impossible for the uninsulated free end of the supply line 96 which is connected to the household network and is therefore live to be exposed.

Bei der Erfindung werden die freien Enden der flexiblen Anschlußleitungen in einen Mehrfachstecker verwandelt, der leicht mit einem Anschlußsockel oder mit einzelnen Feder-oder Schraubanschlüssen angeschlossen werden kann. Die Stecker oder Stifte werden genau parallel zueinander und mit den flachen Seiten der Hülse in die gewünschte Richtung zeigend gehalten. Es ist möglich, einen Vorsprung 99 vorzusehen, der über die Außenseite 97 des Anschlußstücks 65 vorsteht und mit einer entsprechenden Ausnehmung im Anschlußsockel zusammenarbeitet, um die Verdrehung des Anschlusses und den Anschluß der falschen Leitungen aneinander zu verhindern. Dies könnte auch durch verschiedene unsymmetrische Formgebung oder Ausrichtung der Aderendhülsen 88 oder des Anschlußstücks 75 erfolgen. Die Erfindung ermöglicht es, automatische Vorrichtungen,beispielsweise Industrieroboter zu verwenden, um die Kochplatten in einem Kochgerät zu montieren und zwar einschließlich der Vornahme der elektrischen Anschlüsse. Dafür könnten die Maßnahmen, die einen verdrehten Anschluß ausschließen, auch Vorsprünge oder Ausnehmungen an dem Verbindungsstück sein, die von dem Greifer des Industrieroboters ergriffen oder abgeführt werden. Es ist möglich, Aderendhülsen zu benutzen, in denen die die Anschlußstifte bildenden Teile nicht aus Drähten bestehen, die von einer Hülse umgeben sind,sondern aus Blechfahnen.In the invention, the free ends of the flexible connecting lines are converted into a multiple plug, which can easily be connected with a connection base or with individual spring or screw connections. The plugs or pins are held exactly parallel to each other and with the flat sides of the sleeve pointing in the desired direction. It is possible to provide a protrusion 99 which protrudes beyond the outside 97 of the connector 65 and which cooperates with a corresponding recess in the connector base in order to prevent the connector from being twisted and the wrong leads being connected to one another. This could also be done by different asymmetrical shapes or orientations of the wire end sleeves 88 or the connector 75. The invention makes it possible to use automatic devices, for example industrial robots, to mount the hot plates in a cooking appliance, including the making of the electrical connections. For this purpose, the measures which rule out a twisted connection could also be projections or recesses on the connecting piece which are gripped or removed by the gripper of the industrial robot. It is possible to use ferrules in which the parts forming the connecting pins do not consist of wires surrounded by a sleeve, but of metal tabs.

Fig. 6 zeigt die Unterseite eines Kochgerätes,wie beispielsweise der Einbauplatte 104 für einen Kochherd oder eine Kochmulde, die vier Kochplatten 11 der vorher beschriebenen Art enthält. Ihre Anschlußstücke 75 sind in einen Anschlußblock 105 eingesteckt, der die Grundform eines Kreuzes mit den Anschlußstücken an seinen vier Endflächen hat. Die Anschlüsse können Klemmelemente enthalten, wie sie im Zusammenhang mit Fig. 2 beschrieben sind, die aber nur für die Einführung der Anschlüsse 58 von der Kochplatte vorgesehen sind, während die Zuleitungsdrähte 96 zum Haushaltsnetz oder den Reglern der Kochplatte in einem flexibeln mehradrigen Kabel 106 enthalten sind, das aus dem Zentrum des Anschlußblocks 105 herausragt. Am Ende des Kabels 106 sind vier Anschlußstecker 107 vorgesehen, die in Steckanschlüsse 108 an einem gemeinsamen Verbindungsblock 109 eingesteckt werden können, der an einer Seite des Kochgerätes angebracht ist und der auch die Regler etc. für das Kochgerät enthalten kann. Der Anschlußblock 105 ist an.der Einbauplatte 104 im Zentrum zwischen den vier Kochplatten 11 angebracht, so daß dort jeweils ein minimaler Abstand von den Kochplatten vorliegt, so daß mit relativ kurzen Anschlußleitungen 58 die Verbindung zum Block 105 herzustellen ist.Fig. 6 shows the underside of a cooking appliance, such as the mounting plate 104 for a stove or a hob, which contains four hot plates 11 of the type described above. Their connectors 75 are inserted into a connector block 105, which has the basic shape of a cross with the connectors on its four end faces. The connections can contain clamping elements, as described in connection with FIG. 2, but which are only intended for the introduction of the connections 58 from the hotplate, while the supply wires 96 to the household network or the controllers of the hotplate contain in a flexible multi-core cable 106 protruding from the center of the terminal block 105. At the end of the cable 106 four connecting plugs 107 are provided which can be plugged into plug connections 108 on a common connecting block 109 which is attached to one side of the cooking device and which can also contain the regulators etc. for the cooking device. The connection block 105 is attached to the mounting plate 104 in the center between the four hot plates 11, so that there is a minimal distance from the hot plates there, so that the connection to the block 105 can be made with relatively short connecting lines 58.

Durch die im Zusammenhang mit Fig. 6 beschriebenen Merkmale ist eine automatische Montage des Kochgerätes möglich: Der Anschlußblock 105 und der Verbindungsblock 109 werden an der Einbauplatte angebracht und miteinander durch das vorfabrizierte Kabel 106 verbunden. Die Kochplatten 11 können nun in die öffnungen in der Einbauplatte 104 von oben her automatisch eingeführt werden. Infolge der flexiblen Drähte 58, die zum Inneren der Kochplatte hin gebogen sind, kann dies ohne seitliches Kippen oder Verschieben geschehen. Danach werden die Anschlüsse durch Einstecken der Anschlußstücke 75 in den Terminalblock 105 vollendet. Besonders vorteilhaft ist, daß an der Unterseite kein unisoliertes Teil vorliegt, so daß gegebenenfalls auf eine Isolierabdeckung für die Unterseite des Kochgerätes verzichtet werden kann.The features described in connection with FIG. 6 enable the cooking appliance to be installed automatically: the connection block 105 and the connection block 109 are attached to the mounting plate and connected to one another by the prefabricated cable 106. The hotplates 11 can now be automatically inserted into the openings in the mounting plate 104 from above. As a result of the flexible wires 58 which are bent towards the inside of the hotplate, this can be done without tilting or shifting to the side. The connections are then completed by inserting the connection pieces 75 into the terminal block 105. It is particularly advantageous that there is no uninsulated part on the underside, so that an insulating cover for the underside of the cooking appliance can be dispensed with if necessary.

Claims (10)

1. Elektrokochplatte mit einem Kochplattenköroer (12) und einer unteren Abdeckung (24) sowie einem aus der Abdeckung hinausragenden Isolierstück (51) für die Durchführung der elektrischen Kochplattenanschlüsse (58, 81) durch die Abdeckung, wobei wärmebeständig isolierte, flexible Anschlußleitungen (58) zu einem gemeinsamen, freibeweglich angeordneten Anschlußstück (75) führen, die ausreichend lang sind, um das Anschlußstück (75) außerhalb des Bereichs der Elektrokochplatte (11) anzuordnen, dadurch gekennzeichnet, daß das Anschlußstück (75) Halteeinrichtungen, die die flexiblen Anschlußleitungen (58) nahe ihren Enden mechanisch miteinander verbinden und die Enden (90) nach Art von Anschlußstiften bzw. -fahnen parallel zueinander ausgerichtet halten, und daß die Enden (90) zur Einführung in einen Anschlußsockel (91, 105) ausgebildet sind.1. Electric hotplate with a hotplate body (12) and a lower cover (24) and an insulating piece (51) protruding from the cover for the passage of the electrical hotplate connections (58, 81) through the cover, whereby heat-resistant insulated, flexible connecting lines (58) lead to a common, freely moveable connecting piece (75) which is long enough to arrange the connecting piece (75) outside the area of the electric hotplate (11), characterized in that the connecting piece (75) holding devices which hold the flexible connecting lines (58 ) mechanically connect with each other near their ends and keep the ends (90) aligned parallel to one another in the manner of connecting pins or lugs, and that the ends (90) are designed for insertion into a connecting base (91, 105). 2. Elektrokochplatte nach Anspruch 1, dadurch gekennzeichnet, daß die Halteeinrichtungen oder die Enden so ausgebildet bzw. angeordnet sind, daß sie in den Anschlußsockel (91, 105) nur in einer Stellung einführbar sind.2. Electric hotplate according to claim 1, characterized in that the holding devices or the ends are designed or arranged so that they can be inserted into the connection base (91, 105) only in one position. 3. Elektrokochplatte nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß das Anschlußstück (75) Kanäle (83) enthält, in die die Enden (90) der flexiblen Anschlußleitungen (58) eingeführt und durch Verformung des Endes (90) gesichert und befestigt sind, wobei vorzugsweise die Kanäle in den Anschlußstücken (75) Öffnungen (83) sind, die eine innere Schulter (86) zum Angriff einer entsprechenden Schulter nahe dem Ende der flexiblen elektrischen Anschlußleitungen (58) haben.3. Electric hotplate according to claim 1 or 2, characterized in that the connecting piece (75) contains channels (83) into which the ends (90) of the flexible connecting lines (58) are inserted and secured and fixed by deformation of the end (90) preferably wherein the channels in the fittings (75) are openings (83) having an inner shoulder (86) for engaging a corresponding shoulder near the end of the flexible electrical leads (58). 4. Elektrokochplatte nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß die flexiblen Anschlußleitungen (58) aus Litzen bestehen, deren Enden (90) von Aderendhülsen (88) umgeben sind, wobei vorzugsweise die Aderendhülsen (88) nach ihrem Einführen in die Kanälen (83) in ihre endgültige Form gebracht sind und insbesondere das Anschlußstück (75) Ausnehmungen (87) enthält, in die Teile der Aderendhülsen (88) in Folge der Formung der Endhülsen eingreifen.4. Electric hotplate according to one of the preceding claims, characterized in that the flexible connecting lines (58) consist of strands, the ends (90) of which are surrounded by wire end sleeves (88), preferably the wire end sleeves (88) after their insertion into the channels ( 8 3 ) are brought into their final shape and in particular the connecting piece (75) contains recesses (87) into which parts of the wire end sleeves (88) engage as a result of the shaping of the end sleeves. 5. Elektrokochplatte nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß der mit den Enden (90) zusammenwirkende Anschlußsockel (91) Federklemmelemente (93) zum Greifen und Festhalten der Enden (90) und vorzugsweise von Zuleitungen vom Elektrizitätsnetz aufweist, wobei bevorzugt die Federklemmelemente für die Zuleitungen selbstsperrend, jedoch für die flexiblen Anschlußleitungen (58) nicht selbstsperrend sind.5. Electric hotplate according to one of the preceding claims, characterized in that the with the ends (90) cooperating connection base (91) spring clamp elements (93) for gripping and holding the ends (90) and preferably leads from the electricity network, preferably the spring clamp elements are self-locking for the supply lines, but are not self-locking for the flexible connecting lines (58). 6. Elektrokochplatte nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß das isolierende Durchführungsteil (51) in eine öffnung in der Abdeckung (24) eingesetzt ist, das Kanäle (57) hat, durch die die elektrischen Kochplattenanschlüsse (58, 81) hindurchlaufen, daß das Durchführungsteil (51) zumindest Elemente einer Positioniereinrichtung (101) zur axialen Positionierung der elektrischen Anschlußleitungen (58, 180) in den Kanälen enthält und daß vorzugsweise das Durchführungsteil (51) aus zwei zusammenpassenden Teilen hergestellt ist, die zwischen sich die Kanäle (57) bilden.6. Electric hotplate according to one of the preceding claims, characterized in that the insulating feed-through part (51) is inserted into an opening in the cover (24) which has channels (57) through which the electric hotplate connections (58, 81) pass, that the lead-through part (51) contains at least elements of a positioning device (101) for the axial positioning of the electrical connecting lines (58, 180) in the channels, and that the lead-through part (51) is preferably made of two matching parts, the channels (57 ) form. 7. Elektrokochplatte nach Anspruch 6, dadurch gekennzeichnet, daß die Positionierungseinrichtung eine Verbindung (100) zwischen den flexiblen elektrischen Anschlußleitungen und einer Verbindungsleitung (81) der Kochplatte enthält, die seitlich über die Anschlußleitungen bzw. die Verbindungsleitungen hinausragt und in einerAusnehmung (101) des Durchführungsteils (105) angeordnet ist.7. Electric hotplate according to claim 6, characterized in that the positioning device contains a connection (100) between the flexible electrical connecting lines and a connecting line (81) of the hotplate, which projects laterally beyond the connecting lines or the connecting lines and in a recess (101) of the Implementation part (105) is arranged. 8. Elektrokochplatte nach Anspruch 6 oder 7, dadurch gekennzeichnet, daß die Isolierung (82) der flexiblen elektrischen Anschlußleitungen (58) in die Kanäle (57) des Durchführungsteils (51) hineinreicht.8. Electric hotplate according to claim 6 or 7, characterized in that the insulation (82) of the flexible electrical connecting lines (58) extends into the channels (57) of the feed-through part (51). 9. Elektrokochplatte nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß der Anschlußsockel (105) aus einem Anschlußblock besteht, der an einem Elektrokochgerät (104) angeordnet ist und Steckanschlüsse für die Anschlußstücke (75) mehrerer Elektrokochplatten (11) hat.9. Electric hotplate according to one of the preceding claims, characterized in that the connection base (105) consists of a connection block which is arranged on an electric cooking device (104) and has plug connections for the connecting pieces (75) of a plurality of electric hotplates (11). 10. Elektrokochplatte nach Anspruch 9, dadurch gekennzeichnet, daß der Anschlußblock (105) durch flexible Leitungen (106) mit einem Verbindungsblock (109) verbunden ist, der vorzugsweise an einer Seite des Elektrokochgerätes fest angebracht ist.10. Electric hotplate according to claim 9, characterized in that the connection block (105) is connected by flexible lines (106) to a connecting block (109) which is preferably fixedly attached to one side of the electric cooking device.
EP83107990A 1982-08-25 1983-08-12 Electric hot-plate Expired EP0102015B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US411458 1982-08-25
US06/411,458 US4467181A (en) 1979-08-17 1982-08-25 Electric hotplate

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EP0102015A2 true EP0102015A2 (en) 1984-03-07
EP0102015A3 EP0102015A3 (en) 1985-04-03
EP0102015B1 EP0102015B1 (en) 1987-09-23

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AT (1) ATE29942T1 (en)
AU (1) AU563410B2 (en)
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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0167911A2 (en) * 1984-07-13 1986-01-15 E.G.O. Elektro-Geräte Blanc u. Fischer Electric cooking plate
FR2575022A1 (en) * 1984-12-13 1986-06-20 Itw Espana Sa Cable anchoring and connection device for household electrical appliances
EP0223168A1 (en) * 1985-11-16 1987-05-27 E.G.O. Elektro-Geräte Blanc u. Fischer Electrical cooking plate and device for its connection
EP0224098A1 (en) * 1985-11-16 1987-06-03 E.G.O. Elektro-Geräte Blanc u. Fischer Electrical cooking plate and device for its connection
DE3916725A1 (en) * 1989-05-23 1990-12-06 Ego Elektro Blanc & Fischer ELECTRIC COOKING PLATE

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB337578A (en) * 1929-10-15 1930-11-06 Charles Sykes Improvements relating to electric heating elements
DE814764C (en) * 1949-10-22 1951-09-24 Georg Maurer Electric heat turntable
FR1069861A (en) * 1952-01-23 1954-07-13 Felten & Guilleaume Carlswerk Method for making connections, longitudinally watertight and gas-tight, in symmetrical cables
DE1157318B (en) * 1958-10-10 1963-11-14 Karl Fischer Electric tubular heater
FR1468918A (en) * 1964-11-17 1967-02-10 Amp Inc Electrical connector
US3601783A (en) * 1969-03-05 1971-08-24 Amp Inc Electrical connector with spring biased solder interface
DE2442717A1 (en) * 1974-09-06 1976-03-18 Karl Fischer Electric cooker hotplate with controlled characteristics - allows full power to be supplied to the plate when appropriate but prevents overheating
DE2933350A1 (en) * 1979-08-17 1981-03-26 Fischer, Karl, 75038 Oberderdingen Insulated electrical boiling plate - having resistance coil in groove with aluminium foil beneath over high temp. thermal insulation

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB337578A (en) * 1929-10-15 1930-11-06 Charles Sykes Improvements relating to electric heating elements
DE814764C (en) * 1949-10-22 1951-09-24 Georg Maurer Electric heat turntable
FR1069861A (en) * 1952-01-23 1954-07-13 Felten & Guilleaume Carlswerk Method for making connections, longitudinally watertight and gas-tight, in symmetrical cables
DE1157318B (en) * 1958-10-10 1963-11-14 Karl Fischer Electric tubular heater
FR1468918A (en) * 1964-11-17 1967-02-10 Amp Inc Electrical connector
US3601783A (en) * 1969-03-05 1971-08-24 Amp Inc Electrical connector with spring biased solder interface
DE2442717A1 (en) * 1974-09-06 1976-03-18 Karl Fischer Electric cooker hotplate with controlled characteristics - allows full power to be supplied to the plate when appropriate but prevents overheating
DE2933350A1 (en) * 1979-08-17 1981-03-26 Fischer, Karl, 75038 Oberderdingen Insulated electrical boiling plate - having resistance coil in groove with aluminium foil beneath over high temp. thermal insulation

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0167911A2 (en) * 1984-07-13 1986-01-15 E.G.O. Elektro-Geräte Blanc u. Fischer Electric cooking plate
EP0167911A3 (en) * 1984-07-13 1986-12-30 E.G.O. Elektro-Gerate Blanc U. Fischer Electric cooking plate
FR2575022A1 (en) * 1984-12-13 1986-06-20 Itw Espana Sa Cable anchoring and connection device for household electrical appliances
EP0223168A1 (en) * 1985-11-16 1987-05-27 E.G.O. Elektro-Geräte Blanc u. Fischer Electrical cooking plate and device for its connection
DE3540815A1 (en) * 1985-11-16 1987-05-27 Ego Elektro Blanc & Fischer ELECTRIC COOKING PLATE AND DEVICE FOR THEIR CONNECTION
EP0224098A1 (en) * 1985-11-16 1987-06-03 E.G.O. Elektro-Geräte Blanc u. Fischer Electrical cooking plate and device for its connection
US4871902A (en) * 1985-11-16 1989-10-03 E.G.O. Elektro-Gerate Blanc U. Fischer Electric hotplate and apparatus for the connection thereof
DE3916725A1 (en) * 1989-05-23 1990-12-06 Ego Elektro Blanc & Fischer ELECTRIC COOKING PLATE
US5153412A (en) * 1989-05-23 1992-10-06 E.G.O. Elektro-Gerate Blanc U. Fischer Electric hotplate

Also Published As

Publication number Publication date
TR22134A (en) 1986-05-20
ES525127A0 (en) 1984-07-01
EP0102015B1 (en) 1987-09-23
ES8406700A1 (en) 1984-07-01
FI833017A0 (en) 1983-08-23
PT77244B (en) 1986-02-12
AU1833183A (en) 1984-03-01
GR82637B (en) 1985-02-07
JPS5962023A (en) 1984-04-09
JPH0351972B2 (en) 1991-08-08
PT77244A (en) 1983-09-01
ZA835942B (en) 1984-04-25
YU44980B (en) 1991-06-30
FI833017A (en) 1984-02-26
EP0102015A3 (en) 1985-04-03
ATE29942T1 (en) 1987-10-15
DE3373860D1 (en) 1987-10-29
NO833050L (en) 1984-02-27
YU174583A (en) 1985-12-31
AU563410B2 (en) 1987-07-09

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