Connector pin end high-reliability high-density specific point location self-short-circuit fixing structure

Abstract

The utility model relates to the technical field of high-current connectors, and discloses a connector pin end high-reliability high-density specific point location self-short-circuit fixing structure which comprises a plurality of contact pieces, a plurality of ejector rods, a plurality of short-circuit blocks, a cover plate, an insulator and a plurality of springs. The insulator comprises a second small hole and a second mounting hole, the short-circuit block is connected with the spring, the ejector rod is located in the first small hole of the cover plate, the spring is located in the second small hole of the insulator, the ejector rod is connected with the short-circuit block, and the short-circuit block is connected with the spring. The contact piece passes through the first mounting hole and the second mounting hole to be respectively connected with the cover plate and the insulator, and the cover plate is connected with the insulator. The utility model has the advantages of compact structure, small volume and low manufacturing cost, can realize a specific point short circuit function, and has reliable voltage-resistant performance.

Description

Technical Field

[0001] The utility model relates to the technical field of electric connectors, in particular to a high-reliability and high-density specific point self-short-circuit fixing structure for connector pin ends. Background Art

[0002] The current transformer of the power system is made according to the principle of electromagnetic induction. The current transformer collects the current information on the primary line and converts it into low current for transmission to the smart device. Because there is always current passing through its primary line, the secondary circuit must always be in the on state. The open circuit on the secondary side will cause the iron core in the current transformer to be over-magnetized and heated, causing the transformer to burn out. In this special use environment, the specific internal contacts of the connector plug and socket on the secondary side must be in a short-circuit state when they are not connected to ensure the conduction of the secondary circuit. At present, the self-short-circuit structure in the industry is generally designed at the hole end, and all contact points are short-circuited at the same time, and the short-circuit of the specified point cannot be achieved. In addition, due to the complex internal structure of the short-circuit structure, the distribution and high performance requirements of the contact short-circuit structure are generally met by increasing the volume, which can not meet the current trend of miniaturization of connectors, but also increase the customization cost of connectors. Utility Model Content

[0003] The utility model aims to solve the shortcomings of the prior art and proposes a connector pin end high-reliability high-density specific point self-short-circuit fixing structure, which can realize the specific point short-circuit function, has a compact structure and low manufacturing cost.

[0004] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0005] The utility model provides a high-reliability, high-density, specific-point self-short-circuit fixing structure for a connector pin end, comprising a plurality of contacts, a plurality of push rods, a plurality of short-circuit blocks, a cover plate, an insulator and a plurality of springs, wherein the cover plate comprises a first small hole and a first mounting hole, the insulator comprises a second small hole and a second mounting hole, the short-circuit block is connected to the spring, the push rod is located in the first small hole of the cover plate, the spring is located in the second small hole of the insulator, the push rod is connected to the short-circuit block, the contact passes through the first mounting hole and the second mounting hole and is respectively connected to the cover plate and the insulator, and the cover plate is connected to the insulator.

[0006] Furthermore, the first small holes are the same in number as the second small holes, and their positions correspond one to one; the first mounting holes are the same in number as the second mounting holes, and their positions correspond one to one.

[0007] Furthermore, a boss is provided on the first mounting hole of the cover plate, a first groove is provided on the second mounting hole of the insulator, and a second groove is provided on the second small hole of the insulator.

[0008] The utility model has the following beneficial effects:

[0009] 1. The utility model proposes a high-reliability, high-density, specific-point self-short-circuit fixing structure for the connector pin end. The number and position of the contact pieces and the ejector pins can be set according to actual conditions, and the specific-point short-circuit function can be realized when the pin side is not plugged in.

[0010] 2. The utility model proposes a high-reliability, high-density, specific-point self-short-circuit fixing structure for the connector pin end, which has a compact structure, a small size and a low manufacturing cost.

[0011] 3. The utility model proposes a high-reliability, high-density, specific-point self-short-circuit fixing structure for the connector pin end. Through the personalized design of the local grooves of the insulator and the cover plate, the creepage distance in a limited space is improved. Even if the short-circuit structure is added, the contact parts still maintain reliable voltage resistance performance while keeping the original volume unchanged. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 This is an overall schematic diagram of a high-reliability, high-density, specific-point self-short-circuit fixing structure for a connector pin end according to the utility model;

[0013] Figure 2 It is a cross-sectional schematic diagram of a high-reliability, high-density, specific-point self-short-circuit fixing structure of a connector pin end of the utility model;

[0014] Figure 3 This is a structural diagram of a connector pin end high-reliability high-density specific point self-short-circuit fixed structure cover plate of the utility model;

[0015] Figure 4 This is a structural diagram of a high-reliability, high-density, specific-point self-short-circuit fixed structure insulator for a connector pin end of the utility model;

[0016] Figure 5 This is a diagram of a short-circuit block and a spring structure of a connector pin end with high reliability, high density, and specific point self-short circuit fixed structure;

[0017] Legend:

[0018] 1. Contact piece; 2. Push rod; 3. Short-circuit block; 4. Cover plate; 5. Insulator; 41. Boss; 42. First small hole; 43. First mounting hole; 51. First groove; 52. Second groove; 53. Second small hole; 54. Second mounting hole. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0020] Reference Figure 1-5 The utility model provides an embodiment: a high-reliability, high-density, specific-point self-short-circuit fixing structure for a connector pin end, comprising a contact 1, a top rod 2, a short-circuit block 3, a cover plate 4, an insulator 5, and a spring 6; the cover plate 4 comprises a first small hole 42 and a first mounting hole 43, the first mounting hole 43 is provided with a boss 41, the insulator 5 comprises a second small hole 53 and a second mounting hole 54, the second mounting hole 54 is provided with a first groove 51, and the second small hole 53 is provided with a second groove 52; the first small holes 42 and the second small holes 53 are the same in number, and the positions correspond one to one; the first mounting hole 43 and the second mounting hole 54 are the same in number, and the positions correspond one to one. The short-circuit block 3 is connected to the spring 6, the push rod 2 is located in the first small hole 42 of the cover plate 4, the spring 6 is located in the second small hole 53 of the insulator 5, the push rod 2 is connected to the short-circuit block 3, the contact 1 passes through the first mounting hole 43 and the second mounting hole 54 and is connected to the cover plate 4 and the insulator 5 respectively, and the cover plate 4 is connected to the insulator 5.

[0021] The utility model has a compact structure, a small volume, and a low manufacturing cost. The number and position of the contact piece 1 and the push rod 2 can be set according to actual conditions, and a short-circuit function at a specific point can be realized when the pin side is not plugged in. The cover plate 4 is provided with the boss 41, and the insulator 5 is provided with a first groove 51 and a second groove 52. Under the condition of unchanged volume, the creepage distance between the two contact pieces in a compact space is improved, thereby increasing the withstand voltage reliability between the contact pieces.

[0022] The specific assembly and use process of the high-reliability, high-density, specific-point self-short-circuit fixing structure of the connector pin end according to the utility model embodiment is as follows:

[0023] First, the short-circuit block and the spring are assembled together, and then the push rod is installed in the first small hole of the cover plate, the spring is installed in the second small hole of the insulator, the contact piece is installed in the second installation hole of the insulator, the cover plate is covered, the cover plate and the insulator are fitted together, and they are assembled together to fix the short-circuit structure of the contact piece, and finally the assembled fixed structure is installed in the connector housing; when the connector plug and the socket are not plugged in, the push rod is not pushed open and is in a free state, and the short-circuit block keeps in contact with the contact pieces on both sides under the action of the spring, and the two contact pieces are in a short-circuit conduction state, when the connector plug and the socket are plugged in, the push rod begins to be pushed open, and the short-circuit block is separated from the two contact pieces, and when the plug and the socket are fully plugged in, the push rod is completely pushed open, and the short-circuit state between the two contact pieces is released. Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A connector pin end high reliability high density specific point self-short circuit fixing structure, characterized by: It includes a plurality of contact pieces, a plurality of push rods, a plurality of short-circuit blocks, a cover plate, an insulator and a plurality of springs, wherein the cover plate includes a first small hole and a first mounting hole, the insulator includes a second small hole and a second mounting hole, the short-circuit block is connected to the spring, the push rod is located in the first small hole of the cover plate, the spring is located in the second small hole of the insulator, the push rod is connected to the short-circuit block, the contact piece passes through the first mounting hole and the second mounting hole and is connected to the cover plate and the insulator respectively, and the cover plate is connected to the insulator.

2. A connector pin end high reliability high density specific point self-short circuit fixing structure according to claim 1, characterized in that: The first small holes are the same in number as the second small holes, and their positions correspond one to one; the first mounting holes are the same in number as the second mounting holes, and their positions correspond one to one.

3. A connector pin end high reliability high density specific point self-short circuit fixing structure according to claim 1, characterized in that: A boss is provided on the first mounting hole of the cover plate, a first groove is provided on the second mounting hole of the insulator, and a second groove is provided on the second small hole of the insulator.

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