CN87207224U

CN87207224U - Rf coaxial connector

Info

Publication number: CN87207224U
Application number: CN 87207224
Authority: CN
Inventors: 周丽华
Original assignee: SHANGHAI NO 16 RADIO FACTORY
Current assignee: SHANGHAI NO 16 RADIO FACTORY
Priority date: 1987-06-20
Filing date: 1987-06-20
Publication date: 1988-01-27

Abstract

The utility model relates to a radio frequency coaxial connector, comprising a socket and two plugs suitable to the left and the right sides of the socket. A screening housing is additional arranged on the outside of the socket, glass insulation inner loops with dummy clubs are respectively arranged between a thrusting needle and a metal housing, and a metal housing and the screening housing, and insulators with dummy clubs are arranged the left and the right plugs correspondingly. With the structure, the utility model has the advantages of high-pressure resistance, good sealing performance, and double shielding performance, and is suitable for the connection in various radio frequency microwave systems.

Description

RF coaxial connector

The utility model relates to the improvement of radio frequency (RF) coaxial connector.

In various radio frequency microwave systems, often need to use radio frequency (RF) coaxial connector, have good sealing, shielding and high voltage bearing coaxial connector for preventing the leakage loss of high-frequency energy in connection, being starved of.Though the hermetically sealed connector of useful now glass capsulation insulator normally is fixed on connector inside with scolding tin with them,, can not take into account high pressure resistant though solved sealing.So far, Shang Weiyou is with good sealing, shielding and high voltage bearing coaxial connector.

The purpose of this utility model is to address the above problem, and a kind of radio frequency (RF) coaxial connector that has high sealing, high pressure resistant and advantages of good shielding performance concurrently is provided.

The utility model is achieved in that at first, add one one headband metric system external screw thread in the socket outside that comprises contact pin and metal shell and the other end is the screening can of thin cylinder, and between screening can and the metal shell and between metal shell and the contact pin respectively sintering ring in glass capsulation outer shroud and the glass capsulation is arranged, boss has all been alarmmed at the middle part of interior ring left and right sides both ends of the surface, form the coaxial boss ring that space more than 0.8 millimeter is radially arranged apart from contact pin, high 1～5 millimeter, thick 1～5 millimeter of this boss ring, radially space more than 1 millimeter is arranged apart from metal shell.The left and right boss ring size of interior ring can be made identical, also can make difference on demand, and the interior ring of outer shroud and band boss ring is shorter than contact pin on axial length.Simultaneously, also the left and right sides plug that comprises jack, contact head, rubber washer, attaching nut and metal shell (right plug also comprises snap ring) is taked corresponding measure, promptly between jack and contact head, one of close-fitting is as polytetrafluoroethylene or poly-

The stable insulator of high temperature resistant medium coefficient again that imines is such, one of insulator subtend socket is made the radius cross section be spill, thereby form the concave station ring in the termination, the size of the concave station ring of left and right plug insulator is coincide with the left and right boss ring of interior ring in the socket respectively.Their other end is close to the metal shell of plug separately respectively.

For the ease of the utility model being fixed on the panel of instrument or equipment with nut, screening can on its socket can be changed slightly, be about to one of its thin cylinder and be with the externally threaded swivel nut of metric system instead, screw thread to the greatest extent bottom is provided with a thickness greater than 1.5 millimeters boss along the circumference of screening can, and this boss profile can be done shape circular, square, oval or that other is convenient to install.Can also open screw mounting hole or internal thread hole on the boss, the also available screw mode of so both available nut mode is fixed to socket on the panel of instrument or equipment.

The utility model is because of having adopted the double shield structure of double-level-metal shell on socket, the transmission of power that can significantly reduce at the coupling place than general radio frequency (RF) coaxial connector leaks.The inner and outer rings of socket is that direct sintering is at the glass capsulation insulator between contact pin and the metal shell and between metal shell and the screening can, therefore not only air-tightness is good to use the connector of scolding tin fixing glass seal as compared with the past, and can improve resistance to pressure, particularly the insulator in the plug and socket is improved to the identical structure of band concave, convex platform ring, increased the creepage distance of contact pin to metal shell, thereby improved resistance to pressure greatly, made its operating voltage up to more than 3 kilovolts.

The utility model is described further for embodiment below in conjunction with accompanying drawing.

Fig. 1 is the structural representation of socket among the utility model one embodiment.

Fig. 2 is the structural representation of left plug among the utility model one embodiment.

Fig. 3 is the structural representation of right plug among the utility model one embodiment.

Fig. 4 is Fig. 1～general construction schematic diagram embodiment illustrated in fig. 3.

Present embodiment comprises socket shown in Figure 1 and Fig. 2, the left and right sides shown in Figure 3 plug.As shown in Figure 1, socket all have by contact pin 1, two ends encircle 2 in the glass capsulation of boss ring, one on metal shell 3, glass capsulation outer shroud 4 and a headband screw thread form for the metallic screening can 5 of thin cylinder; Its left plug (see figure 2) is made up of teflon insulation 7, contact head 8, rubber washer 9, attaching nut 10, metal shell 11, lining 12, annulus 13, rubber washer 14, packing ring 15, the fastening swivel nut 16 of jack 6, an end band concave station ring; Right plug (see figure 3) is formed by teflon insulation 17 of an end band concave station ring, jack 18, rubber washer 19, contact head 20, snap ring 21, attaching nut 22, metal shell 23 and with general lining 12, annulus 13, rubber washer 14, packing ring 15 and the fastening swivel nut 16 of left plug.In the present embodiment, high 3 millimeters, thick 2 millimeters of the boss ring of ring 2 in the socket, radially apart from 1 millimeter of contact pin.The ring wall of interior ring 2 is 5 millimeters, and its axial length overall is 12 millimeters, is respectively 7 millimeters and 11 millimeters apart from the left and right outer face of socket.The ring wall of outer shroud 4 is 4 millimeters, and ring 2 and sealing outer shroud 4 form by the high-performance glass powder sintering in the sealing.

As shown in Figure 4, when left and right sides plug with after socket links to each other, the concave, convex platform ring of plug, socket matches, their existence makes the actual creepage distance between contact pin 1 and the metal shell 3 increase more than 1 times.

In sum, the utility model is by sintered glass sealing insulator and the double shield structure of employing with concave, convex platform ring, realized having concurrently the coaxial connector of high sealing, high pressure resistant and advantages of good shielding performance.

Claims

1, a kind of by socket and with its about the radio frequency (RF) coaxial connector formed of two plugs that match, its socket comprises contact pin 1 and metal shell 3, its left and right sides plug is except that comprising both general linings 12, annulus 13, rubber washer 14, clamp nut 16, also comprise jack 6, contact head 8, rubber washer 9, attaching nut 10, metal shell 11 and jack 18, contact head 20, rubber washer 19, attaching nut 22, metal shell 23, snap ring 21 respectively, it is characterized in that:

A. its socket is outside also has one one headband metric system external screw thread and the other end is the screening can 5 of thin cylinder, and between screening can 5 and metal shell 3 and between metal shell 3 and the contact pin 1 respectively sintering have axial length to be shorter than in the glass capsulation outer shroud 4 of contact pin 1 and the glass capsulation to encircle 2, boss has all been alarmmed at the middle part of interior ring 2 left and right sides both ends of the surface, form the coaxial boss ring that space more than 0.8 millimeter is radially arranged apart from contact pin 1, high 1～5 millimeter, thick 1～5 millimeter of this boss ring, and radially space more than 1 millimeter is arranged apart from metal shell 3;

B. between the jack 6,18 of its left and right plug and the contact head 8,20 respectively the radius cross section of one one termination of close-fitting be spill, and with coincide stable with medium coefficient of the left and right boss shape of interior ring 2 and insulator 7,17 that exotic material is made, their other end is close to metal shell 11,23 respectively to the size of the concave station ring of Xing Chenging respectively thus.

2, radio frequency (RF) coaxial connector according to claim 1 is characterized in that one of the thin cylinder of its screening can 5 is with the externally threaded swivel nut of metric system instead, and to the greatest extent a thickness is set greater than 1.5 millimeters boss along the circumference of screening can 5 in the bottom at screw thread.