Multi-contact terminal electric connection structure

Abstract

A multi-contact terminal electric connection structure relates to the technical field of electric transmission equipment and comprises a terminal, an insulating shell and an electric conductor. The terminal comprises a connecting part, and the connecting part comprises a first contact surface at the end part and a second contact surface in the circumferential direction; the conductor part is arranged in the insulating shell, one end of the conductor part is a terminal connecting end, the other end of the conductor part is a pin end, and the terminal connecting end and the pin end are exposed outside the insulating shell; the terminal connecting end comprises a first elastic sheet and a second elastic sheet; the first elastic sheet is located in the extension direction of the terminal and abuts against the first contact surface; the second elastic piece is located on the side of the connecting part and abuts against the second contact face. The second elastic sheet can abut against the second contact surface from the side of the connecting part, and the first elastic sheet abuts against the first contact surface from the end surface of the connecting part, so that not only can multiple parts of the terminal be stressed and clamped more tightly, but also the conductor is provided with multiple contacts which are connected with the terminal, and the reliability of electric signal transmission is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of electric transmission equipment, in particular to a multi-contact terminal electric connection structure. Background Art

[0002] At a time when the new energy vehicle manufacturing industry is developing rapidly, the charging stand is an indispensable component product for new energy vehicles. With the development of charging stand technology, the various functions of current charging stands are becoming more and more complex, and the types of electrical signals that need to be transmitted are increasing. Each signal requires its own signal terminal for transmission. Whenever an additional signal terminal is set on the charging stand, it requires an additional connection structure. The current signal terminal trigger connection method is that the terminal touches the spring on the circuit board, and then the signal terminal is fixed by a fixed structure. This structure separates the fixed structure and the electrical connection structure, making the originally small charging stand space more crowded, and it is also easy to have problems with poor contact between the spring and the signal terminal. Therefore, a new solution is urgently needed in the prior art to solve the above problems. Utility Model Content

[0003] The problem to be solved by the utility model is how to provide a charging seat terminal connection structure integrating clamping and conducting functions to ensure effective transmission of electrical signals in the charging seat.

[0004] A multi-contact terminal electrical connection structure, comprising a terminal, an insulating housing and a conductor;

[0005] The terminal comprises a connecting portion, wherein the connecting portion comprises a first contact surface at an end portion and a second contact surface in a circumferential direction;

[0006] The conductor is partially disposed in the insulating housing, one end of which is a terminal connection end, and the other end is a pin end, and the terminal connection end and the pin end are exposed outside the insulating housing;

[0007] The terminal connection end includes a first elastic piece and a second elastic piece;

[0008] The first elastic sheet is located in the extension direction of the terminal and abuts against the first contact surface;

[0009] The second elastic piece is located at the side of the connecting portion and abuts against the second contact surface.

[0010] There are a plurality of second elastic sheets, which are evenly abutted against the outer periphery of the connecting portion.

[0011] There are multiple conductors and terminals, each conductor is connected to one terminal, and different conductors are insulated from each other.

[0012] The pin ends of all the conductors are close to each other to form a plug-in end.

[0013] It also includes a connector housing arranged on the insulating housing, and the plug-in end is located in the connector housing.

[0014] The connector housing and the insulating housing are integrally formed.

[0015] The first elastic piece has a first protrusion abutting against the first contact surface, and the second elastic piece has a second protrusion abutting against the second contact surface.

[0016] The surfaces of the first protrusion and the second protrusion are provided with a conductive wear-resistant layer.

[0017] The insulating shell has a receiving cavity, the connecting portion is at least partially located in the receiving cavity, and the second elastic sheet extends from a side wall of the receiving cavity.

[0018] The conductor is formed by stamping a plate.

[0019] The beneficial effects of the utility model are as follows: the second spring piece can abut against the second contact surface from the side of the connecting part, and the first spring piece can abut against the first contact surface from the end face of the connecting part, which can not only make the terminal be clamped more tightly by multiple forces, but also the conductor has multiple contacts connected to the terminal to ensure the reliability of electrical signal transmission. The other end of the conductor is a pin end, which is used to plug with other connectors to complete the transmission of electrical signals. The conductor is arranged in an insulating shell, which can be protected and will not be deformed, and it can also prevent it from contacting with other conductors and causing a short circuit. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 The utility model is a structural schematic diagram of a multi-contact terminal electrical connection structure.

[0021] Figure 2 The utility model is a schematic structural diagram of a terminal connection end of a multi-contact terminal electrical connection structure.

[0022] Among them, 1-terminal, 11-connecting part, 111-first contact surface, 112-second contact surface, 2-insulating shell, 21-accommodating cavity, 3-conductor, 4-terminal connecting end, 41-first spring sheet, 42-second spring sheet, 411-first protrusion, 421-second protrusion, 5-pin end, 6-connector shell. DETAILED DESCRIPTION

[0023] In order to enable those skilled in the art to better understand the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0024] A multi-contact terminal electrical connection structure, such as Figure 1 and Figure 2 As shown, it includes a terminal 1, an insulating housing 2 and a conductor 3;

[0025] The terminal 1 comprises a connecting portion 11, wherein the connecting portion 11 comprises a first contact surface 111 at an end portion and a second contact surface 112 in a circumferential direction;

[0026] The conductor 3 is partially disposed in the insulating housing 2, one end of which is a terminal connection end 4, and the other end is a pin end 5, and the terminal connection end 4 and the pin end 5 are exposed outside the insulating housing 2;

[0027] The terminal connection end 4 includes a first elastic piece 41 and a second elastic piece 42;

[0028] The first elastic piece 41 is located in the extension direction of the terminal 1 and abuts against the first contact surface 111;

[0029] The second elastic piece 42 is located at the side of the connecting portion 11 and abuts against the second contact surface 112 .

[0030] In one embodiment, the connecting portion 11 of the terminal 1 is a cylinder, the end face of the cylinder is a first contact face 111, and the side face is a second contact face 112. The second spring piece 42 abuts against the second contact face 112 from the side of the connecting portion 11, and the first spring piece 41 abuts against the first contact face 111 from the end face of the cylinder. This not only enables the terminal 1 to be clamped more tightly by multiple forces, but also the conductor 3 has multiple contacts connected to the terminal 1 to ensure the reliability of electrical signal transmission. The other end of the conductor 3 is a pin end 5, which is used to plug in with other connectors to complete the transmission of electrical signals. The conductor 3 is arranged in the insulating housing 2, which can be protected and will not be deformed, and can also prevent it from contacting with other conductors and causing a short circuit.

[0031] In some embodiments, there are multiple second elastic sheets 42, which are evenly abutted against the outer periphery of the connecting portion 11. The multiple second elastic sheets 42 work together to more advantageously clamp the connecting portion 11 of the terminal 1 and ensure more reliable transmission of electrical signals.

[0032] In some embodiments, there are multiple conductors 3 and terminals 1, each of which is connected to one terminal 1, and different conductors 3 are insulated from each other. Multiple mutually insulated conductors 3 can be fixed by an insulating housing 2, and each conductor 3 is connected to a different terminal 1, thereby completing the integration of multiple terminals 1.

[0033] In some embodiments, the pin ends 5 of all the conductors 3 are close to each other to form a plug-in terminal. The plug-in terminal includes multiple pin ends 5, which is convenient for connecting with other devices.

[0034] The first improvement further includes a connector housing 6 disposed on the insulating housing 2, and the plug-in end is located in the connector housing 6. The connector housing 6 and the pin ends 5 therein constitute a connector that can be uniformly plugged with other connectors, thereby realizing centralized transmission of signals of each terminal 1.

[0035] Furthermore, the connector housing 6 is integrally formed with the insulating housing 2. The integrally formed design can not only reduce the processing steps, but also make the overall structure more stable, and the two are not easy to fall off.

[0036] In some embodiments, Figure 2 As shown, the first elastic sheet 41 has a first protrusion 411 abutting against the first contact surface 111, and the second elastic sheet 42 has a second protrusion 421 abutting against the second contact surface 112. The protrusions enable the first elastic sheet 41 and the second elastic sheet 42 to clamp the first contact surface 111 and the second contact surface more strongly.

[0037] Furthermore, the surfaces of the first protrusion 411 and the second protrusion 421 are provided with a conductive wear-resistant layer. The first protrusion 411 and the second protrusion 421 are conductive contacts that are often rubbed, and a good wear-resistant metal is required as the conductive wear-resistant layer to greatly increase the service life. Therefore, the conductive wear-resistant layer is provided to increase the wear resistance and conductivity of the first protrusion 411 and the second protrusion 421.

[0038] In some embodiments, the insulating housing 2 has a receiving cavity 21, the connecting portion 11 is at least partially located in the receiving cavity 21, and the second elastic sheet 42 extends from the side wall of the receiving cavity 21. The second elastic sheet 42 can abut the connecting portion 11 from multiple directions at the same time, and a portion of the second elastic sheet 42 is disposed in the insulating housing 2 to increase its stability.

[0039] In some embodiments, the conductor 3 is formed by stamping a plate. The stamping structure has high processing efficiency and is suitable for mass production.

[0040] The above is a detailed introduction to the charging gun and its gun head connection terminal provided by the utility model. This article uses specific examples to illustrate the principles and implementation methods of the utility model. The description of the above embodiments is only used to help understand the method and core idea of ​​the utility model. It should be pointed out that for ordinary technicians in this technical field, without departing from the principle of the utility model, the utility model can also be improved and modified, and these improvements and modifications also fall within the scope of protection of the claims of the utility model.

Claims

1. A multi-contact terminal electrical connection structure, characterized in that: It includes a terminal, an insulating housing and a conductor; The terminal comprises a connecting portion, wherein the connecting portion comprises a first contact surface at an end portion and a second contact surface in a circumferential direction; The conductor is partially disposed in the insulating housing, one end of which is a terminal connection end, and the other end is a pin end, and the terminal connection end and the pin end are exposed outside the insulating housing; The terminal connection end includes a first elastic piece and a second elastic piece; The first elastic sheet is located in the extension direction of the terminal and abuts against the first contact surface; The second elastic piece is located at the side of the connecting portion and abuts against the second contact surface.

2. A multi-contact terminal electrical connection structure according to claim 1, characterized in that: There are a plurality of second elastic sheets, which are evenly abutted against the outer periphery of the connecting portion.

3. A multi-contact terminal electrical connection structure according to claim 1, characterized in that: There are multiple conductors and terminals, each conductor is connected to one terminal, and different conductors are insulated from each other.

4. A multi-contact terminal electrical connection structure according to claim 3, characterized in that: The pin ends of all the conductors are close to each other to form a plug-in end.

5. A multi-contact terminal electrical connection structure according to claim 4, characterized in that: It also includes a connector housing arranged on the insulating housing, and the plug-in end is located in the connector housing.

6. A multi-contact terminal electrical connection structure according to claim 5, characterized in that: The connector housing and the insulating housing are integrally formed.

7. The multi-contact terminal electrical connection structure according to claim 1, characterized in that: The first elastic piece has a first protrusion abutting against the first contact surface, and the second elastic piece has a second protrusion abutting against the second contact surface.

8. A multi-contact terminal electrical connection structure according to claim 7, characterized in that: The surfaces of the first protrusion and the second protrusion are provided with a conductive wear-resistant layer.

9. The multi-contact terminal electrical connection structure according to claim 1, characterized in that: The insulating shell has a containing cavity, the connecting portion is at least partially located in the containing cavity, and the second elastic sheet extends from a side wall of the containing cavity.

10. The multi-contact terminal electrical connection structure according to claim 1, characterized in that: The conductor is formed by stamping a plate.

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