Small-cavity power electrical penetration joint

Abstract

The utility model relates to the technical field of electrical connectors, in particular to a small-cavity power electrical penetration connector, which is characterized in that a feed-through line is connected onto a flange, one ends of a plurality of contact pins are fixed inside the feed-through line, the other ends of the contact pins are arranged in jacks, the jacks are arranged between a front-end jack fixing part and a rear-end jack fixing part, and the front-end jack fixing part and the rear-end jack fixing part are fixedly connected with the feed-through line. A fixing nut is arranged on the inner side of the front-end jack fixing piece, jack shells are arranged on the peripheries of the front-end jack fixing piece and the rear-end jack fixing piece, the jack shells are connected with the fixing nut through threads, and protrusions at the inner side ends of the jack shells and protrusions at the outer side ends of the locking nuts are mutually clamped. The inner side end of the locking nut is in threaded connection with the outer side end of the feed-through line, parts made of materials meeting the deep hypothermia environment are integrated, the requirement for large current is met, the device can also adapt to the deep hypothermia environment, and the device is simple and compact in structure and convenient to install and maintain.

Description

TECHNICAL FIELD

[0001] The utility model relates to electrical joint technical field, concretely is a kind of small cavity power electrical penetration joint. BACKGROUND

[0002] Electrical penetration joint is a device for connecting cable and wire, main function is to connect the conductor on two cables, so that current can flow, while realizing electrical insulation, moisture-proof and waterproof, shock resistance and oxidation resistance.

[0003] But in some extreme environmental conditions, for example, low-temperature experiment, LNG and other fields, it is often necessary to transmit large current in extreme environment, and the multi-core integrated type penetration joint in the conventional electrical penetration joint in the prior art is basically mainly for instrument control purpose, cannot meet the requirement of large current, and to meet the transmission of large current, single-core penetration joint is usually adopted, cannot realize integrated function.

[0004] Based on the above reasons, the utility model designs a kind of small cavity power electrical penetration joint, by the component prepared from the material satisfying deep low temperature environment is integrated, both meet the requirement of large current, also can adapt to deep low temperature environment, and simple structure, compact, easy to install and maintain. SUMMARY

[0005] The utility model aims at overcoming the insufficient of prior art, provide a kind of small cavity power electrical penetration joint, by the component prepared from the material satisfying deep low temperature environment is integrated, both meet the requirement of large current, also can adapt to deep low temperature environment, and simple structure, compact, easy to install and maintain.

[0006] To achieve the above-mentioned purpose, the utility model provides a kind of small cavity power electrical penetration joint, including joint, the joint includes feedthrough wire, locking nut, fixed nut, jack shell, front end jack fixed part, rear end jack fixed part, contact pin, jack and flange, the flange is connected with feedthrough wire, the inside of feedthrough wire is fixed with the one end of multiple contact pins, the other end of contact pin is arranged in jack, jack is arranged between front end jack fixed part and rear end jack fixed part, the inside of front end jack fixed part is provided with fixed nut, the periphery of front end jack fixed part and rear end jack fixed part is provided with jack shell, jack shell is connected with fixed nut by thread, the inside end protrusion of jack shell and the outside end protrusion of locking nut are mutually clamped, the inside end of locking nut and the outside end of feedthrough wire are connected by thread.

[0007] The inside of flange is provided with air cavity and air supplement port.

[0008] The outside end protrusion of jack shell and the outside end notch of rear end jack fixed part are mutually clamped.

[0009] The inner side end surface of the fixing nut and the inner side end surface of the front end jack plug fixing member are on the same plane.

[0010] The joint is a joint of -196 DEG C resistant material.

[0011] Compared with the prior art, all component materials of the utility model are composed of deep low temperature resistant materials suitable for -196 DEG C conditions, directly meeting the requirements of low temperature experiments, LNG and other fields to which the utility model is applied. The front and rear jack plug fixing members are used to protect the jack plug and the internal optical fiber for the first time, and are convenient for connection and alignment. The jack plug shell and the fixing nut are locked for the second time, the jack plug and the front and rear jack plug fixing members are fixed, then the fixing nut and the protruding part of the locking nut are interlocked to realize axial fixation, and finally the locking nut and the feedthrough wire are connected to realize final fixation. The overall device is easy to assemble, is fixed reasonably, can effectively prevent loosening, the internal feedthrough wire is provided with multiple integrated plug pins, large current requirements are met, and a gas cavity and a gas supplement port are reserved in the flange, preparing for subsequent expansion of pressure monitoring and other functions. BRIEF DESCRIPTION OF DRAWINGS

[0012] Fig. 1 It is a cross-sectional schematic view of the utility model.

[0013] Fig. 2 It is a feedthrough wire amplification schematic view of the utility model.

[0014] MARKS DESCRIPTION:

[0015] 1 is a feedthrough wire, 2 is a locking nut, 3 is a fixing nut, 4 is a jack plug shell, 5 is a front end jack plug fixing member, 6 is a rear end jack plug fixing member, 7 is a plug pin, 8 is a jack plug, and 9 is a flange. DETAILED DESCRIPTION

[0016] The utility model will be further described in combination with the drawings.

[0017] Referring to Figs. 1-2The utility model provides a kind of small cavity power electrical penetration joint, including joint, joint includes feedthrough 1, locking nut 2, fixed nut 3, jack shell 4, front end jack fixing piece 5, rear end jack fixing piece 6, pin 7, jack 8, flange 9, flange 9 is connected with feedthrough 1, the inside of feedthrough 1 is fixed with the one end of multiple pin 7, the other end of pin 7 is arranged in jack 8, jack 8 is arranged between front end jack fixing piece 5 and rear end jack fixing piece 6, the inside of front end jack fixing piece 5 is provided with fixed nut 3, the periphery of front end jack fixing piece 5 and rear end jack fixing piece 6 is provided with jack shell 4, jack shell 4 is connected by thread with fixed nut 3, the inside end protrusion of jack shell 4 and the outside end protrusion of locking nut 2 are mutually clamped, the inside end of locking nut 2 and the outside end of feedthrough 1 are connected by thread.

[0018] The inside of flange 9 is provided with air cavity and air supplement port.

[0019] The outside end protrusion of jack shell 4 and the outside end notch of rear end jack fixing piece 6 are mutually clamped.

[0020] The inside end surface of fixed nut 3 and the inside end surface of front end jack fixing piece 5 are on the same plane.

[0021] The joint is -196 DEG C material joint.

[0022] Working principle:

[0023] The utility model in use does not need too much debugging, feedthrough 1 is connected with flange 9 welding, multiple pin 7 is installed in feedthrough 1, realizes integrated pin.

[0024] Jack 8 is placed between front end jack fixing piece 5 and rear end jack fixing piece 6, jack 8, front end jack fixing piece 5 and rear end jack fixing piece 6 are installed in jack shell 4 inside, fixed nut 3 and jack shell 4 are connected by thread, so that jack 8, front end jack fixing piece 5 and rear end jack fixing piece 6 are fixed, after pin 7 is inserted in jack 8 inside and installed in place, locking nut 2 and jack shell 4 are axially clamped, then locking nut 2 and feedthrough 1 are locked by thread, the above-mentioned parts are installed in place.

[0025] The above is only the preferred implementation mode of the utility model, just for helping to understand the method and its core idea of the present application, the protection scope of the utility model is not only limited to the above-mentioned embodiment, and belongs to the protection scope of the utility model for the technical scheme under the idea of the utility model.All the improvements and decorations without departing from the principle of the utility model for the ordinary skilled person in the art should be regarded as the protection scope of the utility model.

[0026] In the description of the utility model, it is necessary to explain that the terms "upper", "lower", "inner", "outer" and the like indicate the position or location relationship based on the position or location relationship shown in the drawing, and are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the utility model.

[0027] The utility model from overall solved the traditional multicore integrated type through joint of prior art basically with instrument control purpose mainly cannot satisfy the deficiency of large current requirement, even if the existing large current only through single core realizes, cannot integrated type contact pin and cannot adapt the deficiency of deep low temperature environment, through with joint all parts adopt deep low temperature resistant material to combine and form integrated type contact pin, effectively solved the deficiency in the prior art, and simple structure, compact, easy to install and use.

Claims

1. A small cavity dynamic electrical feedthrough comprising a feedthrough, characterized in that, The joint comprises a feedthrough wire (1), a locking nut (2), a fixing nut (3), a jack shell (4), a front jack fixing member (5), a rear jack fixing member (6), a pin (7), a jack (8), and a flange (9), the flange (9) is connected with the feedthrough wire (1), the inside of the feedthrough wire (1) is fixed with one end of a plurality of pins (7), the other end of the pin (7) is arranged in the jack (8), the jack (8) is arranged between the front jack fixing member (5) and the rear jack fixing member (6), the inside of the front jack fixing member (5) is provided with the fixing nut (3), the periphery of the front jack fixing member (5) and the rear jack fixing member (6) is provided with the jack shell (4), the jack shell (4) is connected with the fixing nut (3) through threads, the inside end protrusion of the jack shell (4) and the outside end protrusion of the locking nut (2) are interlocked, the inside end of the locking nut (2) and the outside end of the feedthrough wire (1) are connected through threads.

2. The small cavity power electrical feedthrough of claim 1, wherein, The inside of the flange (9) is provided with an air cavity and a gas supplementing port.

3. The small cavity power electrical feedthrough of claim 1, wherein, The outside end protrusion of the jack shell (4) and the outside end notch of the rear jack fixing member (6) are interlocked.

4. The small cavity power electrical feedthrough of claim 1, wherein, The inside end face of the fixing nut (3) and the inside end face of the front jack fixing member (5) are on the same plane.

5. The small cavity power electrical through joint of claim 1, wherein, The joint is a -196℃ resistant material joint.

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