CN112201981B

CN112201981B - Electrical connector

Info

Publication number: CN112201981B
Application number: CN202011127856.7A
Authority: CN
Inventors: 张建平; 仇丹梁; 黄春华
Original assignee: Aulton New Energy Automotive Technology Co Ltd; Shanghai Dianba New Energy Technology Co Ltd
Current assignee: Aodong New Energy Co.,Ltd.; Shanghai Dianba New Energy Technology Co Ltd
Priority date: 2017-06-23
Filing date: 2017-06-23
Publication date: 2022-02-01
Anticipated expiration: 2037-06-23
Also published as: WO2018233712A1; CN109119786A; CN109119786B; CN112290260A; CN112201981A; CN112290260B

Abstract

The invention discloses an electrical connector. The electrical connector includes a low-voltage pole, the low-voltage pole includes a pole main body and a guide foot, the guide foot is arranged on the outer wall of the pole main body and extends outward along the radial direction of the pole main body. The electrical connector further comprises: a pole mounting seat provided with an installation hole; a guide groove arranged on the side wall of the installation hole, when the guide foot moves into the guide groove, the guide foot is slidably arranged in the guide groove, and the guide foot is connected to the guide groove. The slot is used to define the rotation direction of the low voltage pole; the elastic piece is sleeved outside the pole body and located in the installation hole, and the elastic piece is used to drive the low voltage pole to move along the rotation direction set by the guide slot. The invention defines the rotation direction of the low-voltage pole through the cooperation of the guide feet and the guide groove, and drives the low-voltage pole to move along the rotation direction set by the guide groove through the elastic member, so as to achieve the effect of cleaning the terminal contact surface of the low-voltage pole and improve the low-voltage pole. Stability of the electrical contact of the column.

Description

Electrical connector

The application is a divisional application with application date of 2017, 6 and 23, application number of CN201710488955X, name of the invention of low-voltage pole and electric connector comprising the low-voltage pole.

Technical Field

The present invention relates to an electrical connector.

Background

The electric connector comprises a vehicle end electric connector and a battery end electric connector, and the vehicle end electric connector is mounted on a quick-change bracket connected with a vehicle or directly mounted on the vehicle; the battery end electric connector is installed on the quick-change battery pack. The low-voltage pole columns of the battery end electric connector are respectively and correspondingly electrically connected with the low-voltage pole columns of the vehicle body end electric connector one by one.

In the prior art, the end face of the electric contact end of the low-voltage pole easily generates an oxide layer in a long-term contact process, so that the electric contact performance of the low-voltage pole is reduced, and the electric contact of the low-voltage pole is unstable.

Disclosure of Invention

The invention aims to overcome the defect of unstable electric contact of a low-voltage pole in the prior art and provides an electric connector.

The invention solves the technical problems through the following technical scheme:

the utility model provides an electric connector, its characterized in that, includes low pressure utmost point post, utmost point post mount pad and elastic component, utmost point post mount pad is equipped with the mounting hole, low pressure utmost point post wears to locate the mounting hole, the lateral wall of mounting hole is equipped with the guide way, the guide way is located in the direction of slide to the guide foot of utmost point post for inject the direction of rotation of low pressure utmost point post, the elastic component is used for driving low pressure utmost point post is followed the direction of rotation removal that the guide way set up.

Preferably, the elastic element is sleeved outside the pole body of the pole.

Preferably, the low-voltage pole comprises the pole body and the guide pin, wherein the guide pin is arranged on the outer wall surface of the pole body and extends outwards along the radial direction of the pole body.

Preferably, an included angle is formed between the length direction of the guide groove and a central axis of the low-voltage pole.

Preferably, the post mounting seat comprises a main board and a cover plate, the cover plate is detachably connected to one side of the main board, the mounting hole comprises a main board mounting hole and a cover plate mounting hole which are communicated with each other, the main board mounting hole is formed in the main board, the cover plate mounting hole is formed in the cover plate, and the guide groove is formed in the side wall of the cover plate mounting hole.

Preferably, a limiting groove is formed in the side wall of the main board mounting hole, the limiting groove is located at one end, close to the cover plate mounting hole, of the main board mounting hole, one end of the limiting groove is adjacent to and communicated with the guide groove, and the guide pin is clamped in the limiting groove.

Preferably, the cover plate mounting hole includes a first portion and a second portion, the first portion is located between the main plate mounting hole and the second portion, and the diameter of the second portion is smaller than that of the first portion.

Preferably, the protection structure body includes protection structure body head, protection structure body intermediate part and protection structure body afterbody that connect gradually, protection structure body head with the diameter of protection structure body afterbody all is greater than the diameter of protection structure body intermediate part, just protection structure body intermediate part card is established and sealing connection in the second portion, protection structure body head with the one end of protection structure body intermediate part connection support lean on in one side of apron, protection structure body afterbody with the one end of protection structure body intermediate part connection support lean on in the top of first portion.

Preferably, the protection structure is a protection ring, and/or the protection structure is made of rubber.

Preferably, the electrical connector further includes a cable, and one end of the cable sequentially penetrates through the protective structure and the first portion and is inserted into the tail end of the pole body.

Preferably, the length of the cable between the protective structure and the tail end of the pole body is greater than the distance from the protective structure to the tail end of the pole body.

Preferably, the cable between the protective structure and the tail end of the pole body is spiral in shape.

Preferably, the post main body includes a connecting body and a wire pressing body connected to each other, the elastic member is sleeved outside the connecting body, the connecting body is located in the main board mounting hole, the wire pressing body is located in the cover plate mounting hole, the diameter of the connecting body is greater than that of the wire pressing body, the guide pin is located on an outer wall surface of one end, close to the wire pressing body, of the connecting body, and the cable is inserted into one end, far away from the connecting body, of the wire pressing body.

Preferably, the wire pressing body is provided with a cable groove, and the cable groove is used for inserting the cable.

Preferably, the wire pressing body comprises a head part and a tail part which are connected, one end of the head part of the wire pressing body, which is far away from the tail part of the wire pressing body, is connected with the connecting body, and the diameter of one end, which is connected with the head part of the wire pressing body, of the tail part of the wire pressing body is smaller than that of one end, which is far away from the head part of the wire pressing body, of the tail part of the wire pressing body; the diameter of one end of the head part of the wire pressing body, which is connected with the tail part of the wire pressing body, is equal to the diameter of one end of the head part of the wire pressing body, which is far away from the tail part of the wire pressing body.

Preferably, the connector includes connector head and connector afterbody and spacing platform that are connected, the diameter of connector head is greater than the diameter of connector afterbody, the connector afterbody is kept away from the one end of connector head with the line ball body coupling, spacing platform is located along circumference the connector head with the outer wall of the junction of connector afterbody, the elastic component cover is located outside the connector afterbody, just the one end of elastic component support lean on in spacing platform towards one side of connector afterbody.

Preferably, the main board includes a housing and an intermediate block, an accommodating cavity is disposed at one end of the housing facing the cover plate, and the intermediate block is clamped in the accommodating cavity and hermetically connected to the housing.

The positive progress effects of the invention are as follows:

the rotation direction of the low-voltage pole is limited by the matching of the guide pin and the guide groove, and the low-voltage pole is driven to move along the rotation direction of the guide groove through the elastic piece, so that the effect of cleaning the terminal contact surface of the low-voltage pole is achieved, the stability of the electric contact of the low-voltage pole is improved, and the stability of the electric contact of the electric connector comprising the low-voltage pole is improved.

Drawings

Fig. 1 is a perspective view of a low voltage pole according to a preferred embodiment of the invention.

Fig. 2 is a sectional view taken along a-a in fig. 1.

Fig. 3 is an exploded perspective view of the electrical connector according to the preferred embodiment of the present invention.

Fig. 4 is a front view of the electrical connector according to the preferred embodiment of the present invention.

Fig. 5 is a sectional view taken in the direction B-B in fig. 4.

Fig. 6 is a sectional view taken along the direction C-C in fig. 4.

Description of the reference numerals

Low-voltage pole 10

Pole body 11

Connecting body 12

Connector head 121

Connector tail 122

Spacing platform 123

Wire-crimping body 13

Cable trough 131

Head 132 of wire pressing body

Wire pressing body tail 133

Guide foot 15

Pole mounting base 20

Mounting hole 21

Guide groove 211

Motherboard mounting hole 212

Limiting groove 2121

Cover plate mounting hole 213

First part 2131

Second part 2132

Main board 22

Casing 221

Middle block 222

Cover plate 23

Protective structure 24

Protective structure head 241

Guard structure intermediate portion 242

Protective structure tail 243

Cable 25

Elastic member 30

Detailed Description

The invention is further illustrated by the following examples, which are not intended to limit the scope of the invention.

As will be understood from fig. 1 and fig. 2, the present embodiment provides a low-voltage pole 10, the low-voltage pole 10 includes a pole body 11 and a guide pin 15, the guide pin 15 is disposed on an outer wall surface of the pole body 11 and extends outward along a radial direction of the pole body 11. The guide leg 15 is integrally formed with the pole body 11. Like this, through setting up the guide pin, make low voltage utmost point post under the effort of elastic component, can rotate according to the direction of injecing with the guide way that the guide pin corresponds the setting to reach the effect of low voltage utmost point post self-cleaning terminal contact surface, improve the stability of the electric contact of low voltage utmost point post.

The number of the guide legs 15 is three, and the three guide legs 15 are uniformly arranged along the circumferential direction of the pole body 11 at intervals. Like this, through the quantity and the position that set up the guide foot, make low-voltage utmost point post move more stably at rotatory in-process. In other embodiments, the number of the guide legs 15 may also be two, four, or other values, and the guide legs 15 are uniformly spaced along the circumference of the low-voltage pole 10.

The pole body 11 comprises a connecting body 12 and a line pressing body 13 which are connected, the diameter of the connecting body 12 is larger than that of the line pressing body 13, and the guide pin 15 is located on the outer wall surface of one end, close to the line pressing body 13, of the connecting body 12. The wire pressing body 13 is provided with a cable groove 131, and the cable groove 131 is used for inserting a cable.

The wire pressing body 13 comprises a wire pressing body head 132 and a wire pressing body tail 133 which are connected, one end of the wire pressing body head 132, which is far away from the wire pressing body tail 133, is connected with the connecting body 12, and the diameter of one end, which is connected with the wire pressing body head 132, in the wire pressing body tail 133 is smaller than that of one end, which is far away from the wire pressing body head 132, in the wire pressing body tail 133; the diameter of the end of the crimp body head 132 connected to the crimp body tail 133 is equal to the diameter of the end of the crimp body head 132 remote from the crimp body tail 133.

The connector 12 comprises a connector head 121, a connector tail 122 and a limiting table 123 which are connected, the diameter of the connector head 121 is larger than that of the connector tail 122, one end, far away from the connector head 121, of the connector tail 122 is connected with the wire pressing body 13, and the limiting table 123 is arranged on the outer wall surface of the joint of the connector head 121 and the connector tail 122 along the circumferential direction.

As will be understood in conjunction with fig. 3 and 6, the present embodiment also provides an electrical connector including the low-voltage pole 10, the pole mounting base 20 and the elastic member 30 as described above. In the present embodiment, the elastic member 30 is a spring. The specific structure of the low voltage pole 10 is shown in fig. 1 and 2.

The pole mounting base 20 is provided with a mounting hole 21, and the low-voltage pole 10 penetrates through the mounting hole 21. The side wall of the mounting hole 21 is provided with a guide groove 211, when the guide pin 15 moves into the guide groove 211, the guide pin 15 is slidably arranged in the guide groove 211, and the guide pin 15 is matched with the guide groove 211 to limit the rotating direction of the low-voltage pole 10. The elastic member 30 is located in the mounting hole 21, and the elastic member 30 is sleeved outside the pole body 11, and the elastic member 30 is used for driving the low-voltage pole 10 to move along the rotation direction of the guide groove 211. Like this, inject the direction of rotation of low pressure utmost point post through guide pin and guide way cooperation to drive the direction of rotation removal that low pressure utmost point post set up along the guide way through the elastic component, thereby reach the effect of the terminal contact surface of clean low pressure utmost point post, improve the stability of the electric contact of low pressure utmost point post, and then improve the stability of the electric contact of the electric connector who contains this low pressure utmost point post.

The length direction of the guide groove 211 forms an included angle with the central axis of the low-voltage pole 10. In this embodiment, the included angle is 13-17 degrees. Preferably, the included angle is 15 degrees. Therefore, the rotating direction of the low-voltage pole can be limited through the included angle, and the purpose of cleaning the terminal contact surface of the low-voltage pole is achieved.

In the present embodiment, the number of the guide legs 15 and the number of the guide grooves 211 are three, three guide legs 15 are provided at regular intervals in the circumferential direction of the pole body 11, and three guide grooves 211 are provided at regular intervals in the circumferential direction of the mounting hole 21. And the three guide grooves 211 are provided in one-to-one correspondence with the three guide legs 15. Like this, be three and the position of guide foot through the quantity that sets up the guide foot, make low-voltage pole move more stably at rotatory in-process. In other embodiments, the number of the guide legs 15 and the guide grooves 211 may also be two, four, or other values, and the guide legs 15 are uniformly spaced along the circumference of the low voltage pole 10.

The pole mounting base 20 includes a main plate 22 and a cover plate 23, and the cover plate 23 is detachably coupled to one side of the main plate 22. The main board 22 includes a housing 221 and an intermediate block 222, wherein an accommodating cavity (not shown) is disposed at an end of the housing 221 facing the cover plate 23, and the intermediate block 222 is clamped in the accommodating cavity and hermetically connected to the housing 221.

The mounting hole 21 includes a main board mounting hole 212 and a cover mounting hole 213 communicating with each other, the main board mounting hole 212 is provided in the main board 22, the cover mounting hole 213 is provided in the cover 23, and the guide groove 211 is provided in a side wall of the cover mounting hole 213.

The side wall of the main board mounting hole 212 is provided with a limiting groove 2121, the limiting groove 2121 is located at one end of the main board mounting hole 212 close to the cover plate mounting hole 213, one end of the limiting groove 2121 is adjacent to and communicated with the guide groove 211, and the guide pin 15 is clamped in the limiting groove 2121. Like this, through setting up the spacing groove, carry on spacingly to the guide pin under the normality, guarantee the guide pin reciprocating rotary motion back, still keep getting back to the same fixed position, improve the accurate nature of reciprocating rotary motion at every turn of low pressure utmost point post.

The cover plate mounting hole 213 includes a first portion 2131 and a second portion 2132, the first portion 2131 being located between the main plate mounting hole 212 and the second portion 2132, the second portion 2132 having a diameter smaller than the diameter of the first portion 2131.

The electrical connector further includes a guard structure 24, and the guard structure 24 is engaged and hermetically connected to the second portion 2132. Therefore, the protective structure body is arranged, and the overall protective performance of the electric connector is improved. The protective structure 24 includes a protective structure head 241, a protective structure middle 242, and a protective structure tail 243 connected in sequence, the diameters of the protective structure head 241 and the protective structure tail 243 are both greater than the diameter of the protective structure middle 242, the protective structure middle 242 is clamped and connected to the second portion 2132 in a sealing manner, one end of the protective structure head 241 connected to the protective structure middle 242 abuts against one side of the cover plate 23, and one end of the protective structure tail 243 connected to the protective structure middle 242 abuts against the top of the first portion 2131. In the present embodiment, the guard structure 24 is a guard ring. The protective structure 24 is made of rubber.

In this embodiment, the electrical connector further includes a cable 25, and one end of the cable 25 sequentially penetrates through the protective structure 24 and the first portion 2131 and is inserted into the tail end of the post body 11. Preferably, the length of the cable 25 between the protective structure 24 and the tail end of the pole body 11 is greater than the distance from the protective structure 24 to the tail end of the pole body 11. The cable 25 between the guard structure 24 and the trailing end of the pole body 11 is helical in shape. Therefore, the length and the shape of the cable are set, so that the cable can move freely in a fixed area, and the interference phenomenon can not occur.

As mentioned above, the post body 11 includes the connecting body 12 and the wire pressing body 13 connected to each other, the elastic member 30 is sleeved outside the connecting body 12, the connecting body 12 is located in the main board mounting hole 212, the wire pressing body 13 is located in the cover plate mounting hole 213, the diameter of the connecting body 12 is greater than that of the wire pressing body 13, the guide pin 15 is located on the outer wall surface of the connecting body 12 near one end of the wire pressing body 13, and the cable 25 is inserted into one end of the wire pressing body 13 far from the connecting body 12.

The wire pressing body 13 is provided with a cable groove 131, and the cable groove 131 is used for inserting the cable 25. The wire pressing body 13 comprises a wire pressing body head 132 and a wire pressing body tail 133 which are connected, and one end of the wire pressing body head 132, which is far away from the wire pressing body tail 133, is connected with the connecting body 12. The diameter of one end of the wire pressing body tail 133 connected with the wire pressing body head 132 is smaller than that of one end of the wire pressing body tail 133 far away from the wire pressing body head 132; the diameter of the end of the crimp body head 132 connected to the crimp body tail 133 is equal to the diameter of the end of the crimp body head 132 remote from the crimp body tail 133.

The connector 12 comprises a connector head 121, a connector tail 122 and a limiting table 123 which are connected, the diameter of the connector head 121 is larger than that of the connector tail 122, one end, far away from the connector head 121, of the connector tail 122 is connected with the wire pressing body 13, the limiting table 123 is arranged on the outer wall surface of the joint of the connector head 121 and the connector tail 122 along the circumferential direction, the elastic piece 30 is sleeved outside the connector tail 122, and one end of the elastic piece 30 abuts against one side, facing the connector tail 122, of the limiting table 123.

According to the working principle of the invention, when the low-voltage pole of the battery-end electric connector is electrically connected with the low-voltage pole of the vehicle-end electric connector, an acting force transmitted to the low-voltage pole along the contact surface is generated due to the electric connection, the elastic part in an initial state is compressed under the acting force, and the low-voltage pole is driven to move along the acting force direction, and the low-voltage pole is provided with the guide pin, the side wall of the mounting hole is provided with the guide groove corresponding to the guide pin, and the low-voltage pole is guided and limited to move and rotate along with the arrangement direction of the guide groove and the cooperation of the guide pin and the guide groove; on the other hand, when this effort was cancelled, the elastic component was released, at the in-process that resumes to initial condition, drove the direction of rotation reverse movement that low pressure utmost point post set up along the guide way to accomplish reciprocal rotary motion, reach the terminal contact surface that makes low pressure utmost point post and produce the friction each other, thereby reach the effect of the terminal contact surface of clean low pressure utmost point post, improve the stability of the electric contact of low pressure utmost point post.

While specific embodiments of the invention have been described above, it will be appreciated by those skilled in the art that this is by way of example only, and that the scope of the invention is defined by the appended claims. Various changes and modifications to these embodiments may be made by those skilled in the art without departing from the spirit and scope of the invention, and these changes and modifications are within the scope of the invention.

Claims

1. An electrical connector, characterized in that it comprises a low-voltage pole, a pole mounting seat and an elastic member, the pole mounting seat is provided with a mounting hole, and the low-voltage pole is penetrated through the mounting hole, so that the The side wall of the mounting hole is provided with a guide groove, and the guide feet of the low-voltage pole are slidably arranged in the guide groove to limit the rotation direction of the low-voltage pole, and the elastic member is used to drive the low-voltage pole along the The rotation direction of the guide groove moves, and the length direction of the guide groove forms an included angle with the central axis of the low-voltage pole.

2 . The electrical connector of claim 1 , wherein the elastic member is sleeved outside the pole body of the pole. 3 .

3. The electrical connector according to claim 2, wherein the low-voltage pole comprises the pole body and the guide feet, and the guide feet are arranged on the outer wall of the pole body, and extending outward along the radial direction of the pole body.

4. The electrical connector of claim 2, wherein the pole mounting seat comprises a main board and a cover plate, the cover plate is detachably connected to one side of the main board, and the mounting hole includes The main board installation hole and the cover plate installation hole are connected, the main board installation hole is arranged in the main board, the cover plate installation hole is arranged in the cover plate, and the guide groove is arranged in the cover plate installation hole side wall.

5 . The electrical connector of claim 4 , wherein a limit slot is provided on the side wall of the main board installation hole, and the limit slot is located at the position of the main board installation hole close to the cover plate installation hole. 6 . At one end, one end of the limiting groove is adjacent to and communicated with the guiding groove, and the guiding foot is clamped in the limiting groove.

6. The electrical connector of claim 4, wherein the cover plate mounting hole comprises a first part and a second part, the first part is located between the main board mounting hole and the second part, The diameter of the second part is smaller than the diameter of the first part, and the electrical connector further includes a protective structure body, the protective structure body is clamped and sealed to the second part.

7. The electrical connector according to claim 6, wherein the protective structure comprises a protective structure head, a protective structure middle part and a protective structure tail connected in sequence, the protective structure head And the diameter of the tail of the protective structure is larger than the diameter of the middle part of the protective structure, and the middle part of the protective structure is clamped and sealed to the second part, and the head of the protective structure is connected to the second part. One end connected to the middle part of the protective structure abuts against one side of the cover plate, and one end of the tail part of the protective structure connected to the middle part of the protective structure abuts against the top of the first part.

8 . The electrical connector according to claim 6 , wherein the protective structure is a protective ring, and/or the material of the protective structure is rubber. 9 .

9 . The electrical connector according to claim 6 , wherein the electrical connector further comprises a cable, and one end of the cable passes through the protective structure body and the first part in sequence, and is inserted into the protective structure body and the first part. 10 . It is arranged at the tail end of the pole body.

10 . The electrical connector of claim 9 , wherein the length of the cable between the protective structure and the tail end of the pole body is greater than that from the protective structure to the Distance from the tail end of the pole body.

11 . The electrical connector of claim 9 , wherein the shape of the cable between the protective structure and the tail end of the pole body is helical. 12 .

12 . The electrical connector according to claim 4 , wherein the pole main body comprises a connecting body and a wire crimping body, the elastic member is sleeved on the outside of the connecting body, and the connecting body is 12 . It is located in the main board installation hole, the wire pressing body is located in the cover plate installation hole, the diameter of the connecting body is larger than the diameter of the wire pressing body, and the guide feet are located on the connecting body close to the pressing body. On the outer wall surface of one end of the wire body, the electrical connector further includes a cable, and the cable is inserted at one end of the wire crimping body away from the connecting body.

13 . The electrical connector of claim 12 , wherein the wire crimping body is provided with a cable slot, and the cable slot is used for inserting the cable. 14 .

14 . The electrical connector of claim 12 , wherein the wire crimping body comprises a wire crimping body head and a wire crimping body tail that are connected, and the wire crimping body head is far away from the wire crimping body. 15 . One end of the tail is connected to the connecting body, and the diameter of the end of the tail of the wire pressing body connected to the head of the wire pressing body is smaller than the diameter of the end of the wire pressing body tail that is far away from the head of the wire pressing body; The diameter of the end of the head of the wire crimping body connected to the tail of the wire pressing body is equal to the diameter of the end of the head of the wire pressing body that is far away from the tail of the wire crimping body.

15 . The electrical connector of claim 12 , wherein the connecting body comprises a connecting body head, a connecting body tail, and a limiting platform, wherein the diameter of the connecting body head is larger than that of the connecting body. 16 . The diameter of the body tail, the end of the connector tail away from the connector head is connected to the wire crimping body, and the limit platform is circumferentially arranged at the connection between the connector head and the connector tail. The outer wall surface of the elastic piece is sleeved outside the tail of the connecting body, and one end of the elastic piece abuts against the side of the limiting platform facing the tail of the connecting body.

16. The electrical connector according to any one of claims 4-11, wherein the main board comprises a housing and an intermediate block, and an end of the housing facing the cover plate is provided with a accommodating cavity, The middle block is clamped in the accommodating cavity and sealed with the casing.