DE1990508U - Device for pressing a tubular heat sensor against the protective tube wall in electric water heaters - Google Patents

Description

Title addition : Spring element and protective tube "permanently connected

Brief excerpt ί The tubular heat sensor for regulators and / or limiters of an electric hot water heater is pressed against the inner wall of a protective tube protruding into the container by spring elements that are connected to the open end of the protective tube by soldering or the like. ■ '. '-

Device for pressing, .a, tubular heat sensor on the inner wall of the protective tube in electrical ■ hot water heaters. ■ "-'.'- ■ '..- · ■ ·..;

The innovation relates ' ¹ SiCh to a' device for pressing
a tubular heat sensor on the inner wall of a protective tube or the like in electric water heaters, consisting of a spring element inserted between the sensor and the protective tube, which presses the sensor against the protective tube wall.

Up until now it was common to use additional connecting parts

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PVA 67/5297

to connect a leaf spring to the heat sensor. The disadvantage of this arrangement is that after the heat sensor has been inserted into the protective tube, there is no possibility of checking the position of the spring and the heat sensor in the protective tube. When inserting the heat sensor into the protective tube, it was possible that the spring was displaced opposite the heat sensor and the heat sensor would no longer be pressed against the inside of the protective tube, which was intended as a coupling part ¹ . ■ ■ .- ■.

The object of the innovation is to create a device that does not suffer from the disadvantages of known devices and, moreover, is an essential one; Simplification brings with it. According to the innovation, this happens through this. _f that the spring element is fixedly connected to the protective tube. The .Vdrriöitung according to the invention particularly advantageously fulfills its task in that the spring element extends over the entire height of the protective tube and is connected to the open end of the protective tube by soldering or the like. This-is reached zum.einen, ■ that the spring element -is rigidly fixed easily in its position relative to the protective tube and heat sensor "On the other hand, it is possible to insert the heat sensor in the thermowell the .Einhaltung capable of Federelemefttes and of the warmth sensor! to be checked in the protective tube on the visible part of the spring element at the open end of the protective tube «

On the basis of the 'drawings, an example of the execution of the innovation is described'. '.' ■■■ ■ ■ . '■': ', ^·>:..; . '■'".

PVA 67/5297

1 to 2 show in plan and elevation, for example, a storage container 1 of a hot water heater, not shown in detail, which is closed on its lower open side by a flange plate. The. Flange plate. 2 carries the radiator ». .3 "whose terminal ends 'are guided and the protective tube 6' 4 and 5 through the flange plate 2 downward to accommodate the heat sensor 7> is the above, the capillary tube _8, can be einem.Regler or restriction device connected intermediate heat sensor 7 and.. Protective tube 6 is that extending over the entire height of the protective tube

extending spring element 9 (Fig.3) installed * the ,, with the open The end of the protective tube 6 is connected to the flange plate 2 by "a plumbing TO * It can be seen how the spring 9 connects the heat sensor

in place of the inner wall of the protective tube 6, the 'with the Windings 11 of the heater 3 are closely coupled by soldering points 12

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The ring-shaped cross-sectional profile of the leaf spring 9 is adapted to the inner diameter of the protective tube 6 and is provided with impressions 13 transversely to the longitudinal axis of the spring 9 in the sensor area. The embossments 13 reinforce the pressure of the heat sensor 7 against the inner wall of the protective tube 6, while the heat sensor 7 can be easily pushed in along the spring element 9 on the route from the open end of the protective tube 6 to the contact pressure . ·. ■.,. \. ^; '"-. ·' ... · '- *' ■.. '·

Of course, it is also possible to choose other embodiments for the spring element. By · the shape according to

■ PVA 67/5297

The innovation, however, always ensures that the spring element is immovably retained in the protective tube and that the coupling of the heat sensor to the inner wall of the protective tube, which is decisive for the application of heat to the heat sensor, remains constant. ^ν '---.

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Claims (3)

PVA 67/5297 1) Device for pressing a tubular heat sensor against the inner wall of a. Schutzrohfes ode, like r in electric water heaters, consisting "of an inserted between the sensor and protective tube sensing element .anpreßt the sensor to the Sehuterohrwandung d *. Ad acid h g e k s η ζ calibration η et that the Fedefeiement with the protecting tube fixedly connected is··. "". . l; 2) · Device according to claim 1, d a d u r c h '. g e k β η η ζ e i "c h η et that the spring element over the entire height of the protective tube is enough and is "connected" to the open end of the protective tube by soldering or the like * 3) Device according to claim 1 to 2, .d'ad u r.c.h. g e '.-: k e η η ζ e ic hn e t that the spring learns nt "as a leaf spring is formed, the annular cross section tsprbf il the diameter adapted to the protective tube. - ■■■ 5 - ■■ ■, ■ -. ■ ·; ·:; ...>, -; - · ■ Hg / sm - ■ ■ ·. ' -..- - ^; '- - ■■ 12/12/67