Signal terminal for charging socket and charging socket

Abstract

The utility model discloses a signal terminal used for a charging socket and the charging socket, a plurality of elastic sheet structures opened towards the end parts are circumferentially formed at the front end and the rear end of the signal terminal, the elastic sheet structures are respectively located in a plurality of strip-shaped holes formed by the signal terminal, and the middle parts of the elastic sheet structures are recessed towards the strip-shaped holes. The tail part of the elastic sheet structure is bent towards the outside of the strip-shaped hole so as to clamp a signal contact pin inserted into the signal terminal and a charging gun pin; a sealing structure for sealing the signal terminal and the shell is arranged in the middle of the signal terminal; and an outer side elastic sheet is arranged between the elastic sheet structure and the sealing structure of the signal terminal and is used for axially limiting the shell so as to prevent the signal terminal from exiting after being installed. Through the structural design of the signal terminal and forming in a stamping processing mode, the processing efficiency of the signal terminal is improved, the weight of the signal terminal is reduced, meanwhile, the structural design of the elastic piece at the end part enhances the matching force between the charging gun contact pin and the signal terminal, and the protection effect is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of charging sockets, in particular to a signal terminal for a charging socket and a charging socket. Background Art

[0002] For some power supply equipment, the terminal wire plays the role of transmitting electric energy, connecting the power output to the power interface of the equipment for normal operation of the equipment. For some signal transmission equipment, the terminal wire is used to transmit various signals, such as audio, video, etc., so that the equipment can communicate with the external interface. Common terminal wires include straight plug-in terminal wires, plug terminal wires, horizontal terminal wires, etc.

[0003] In the DC and AC charging sockets of new energy vehicles, signal terminals are used to transmit signals. The signal terminal temperature is usually made of tubular or rod-shaped materials and formed by machining or cold heading. This processing method is relatively cumbersome and the working hours are slightly higher, resulting in low efficiency and heavy weight. The connection strength with the connector is not enough, which can easily cause the connector and the signal terminal to loosen, thereby affecting the transmission effect. Utility Model Content

[0004] In order to solve the technical problems existing in the prior art, the purpose of the utility model is to provide a signal terminal for a charging socket and a charging socket, to change the signal terminal molding process to improve production efficiency, and to change the signal terminal structure to make the signal terminal lighter and ensure the signal transmission effect.

[0005] The utility model solves the above problems through the following technical solutions:

[0006] A signal terminal for a charging socket,

[0007] Several spring structures are formed circumferentially at the front and rear ends of the signal terminal and are open to the ends. The spring structures are respectively located in several strip holes formed by the signal terminal, and the middle of the spring structure is recessed into the strip hole, and the tail of the spring structure is bent outward of the strip hole to clamp the signal pin and the charging gun pin inserted into the signal terminal;

[0008] A sealing structure for sealing the signal terminal and the housing is provided in the middle of the signal terminal;

[0009] An outer spring sheet is arranged between the spring sheet structure and the sealing structure of the signal terminal, and is used for axially limiting the position of the housing to prevent the signal terminal from withdrawing after installation.

[0010] As a further improvement of the present invention, the sealing structure is formed by plastic sealing at least two sealing rings with triangular cross-sections outside the signal terminal.

[0011] As a further improvement of the present invention, the outer spring piece is in an eight-shaped shape, and is used to cooperate with the limiting boss of the shell.

[0012] As a further improvement of the present invention, the signal terminal is formed with a plurality of notches, and the outer spring piece is located outside the notches.

[0013] As a further improvement of the present invention, the notch and the strip-shaped hole are arranged at intervals.

[0014] As a further improvement of the present invention, an end convex point is formed outside the signal terminal in the opening direction of the spring structure.

[0015] As a further improvement of the present invention, the number of spring structures at the front and rear ends of the signal terminal is four and evenly distributed.

[0016] As a further improvement of the present invention, the signal terminal is formed by stamping.

[0017] At the same time, the utility model also solves the above problems through the following technical solutions:

[0018] A charging socket comprises the signal terminal, a shell and a PCBA board as described above, wherein the rear end of the signal terminal is inserted into the shell, the PCBA board is arranged on the shell, and the signal pin arranged on the PCBA board is plugged into the front end of the signal terminal, and the signal pin and the charging gun pin are connected through the spring structure of the signal terminal.

[0019] As a further improvement of the present invention, the sealing structure is interference fit with the housing.

[0020] Compared with the prior art, the utility model has the following advantages and beneficial effects:

[0021] (1) The signal terminal structure design of the utility model can use profile materials and be formed by stamping, which improves the processing efficiency of the signal terminal and reduces the weight of the signal terminal. At the same time, the end spring structure design strengthens the matching force between the charging gun pin and the signal terminal.

[0022] (2) The outer side of the signal terminal of the utility model uses an outer spring piece to perform axial predetermined limiting to ensure the installation strength and prevent the signal terminal from withdrawing from the shell; a sealing structure is set in the middle to meet the protection requirements. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the structure of the signal terminal in the utility model;

[0024] Figure 2 It is a schematic diagram of the installation of the signal terminal and the housing in the utility model;

[0025] Figure 3This is a schematic diagram of the installation of the signal terminal and the PCBA board in the utility model;

[0026] Figure 4 It is a connection diagram of the signal terminal and the signal pin in the utility model.

[0027] Reference numerals:

[0028] 1. Signal terminal; 11. First spring piece; 12. Sealing notch; 13. Outer spring piece; 14. End bump; 15. Second spring piece; 2. Sealing structure; 3. Housing; 4. PCBA board; 5. Signal pin. DETAILED DESCRIPTION

[0029] 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.

[0030] Example

[0031] Combined with Figure 1 As shown, a signal terminal for a charging socket, the signal terminal structure design includes:

[0032] The front end of the signal terminal 1 is provided with a plurality of first spring pieces 11 opened toward the front end, the first spring pieces 11 are located in a plurality of first strip holes opened at the front end of the terminal, and the middle of the first spring piece 11 is recessed into the first strip hole, and the tail of the first spring piece 11 is bent outward, this design can ensure that the signal pin on the PCBA board is smoothly inserted into the front end of the signal terminal;

[0033] A sealing structure 2 is provided in the middle of the signal terminal 1. The sealing structure is to seal two or more sealing rings with triangular cross-sections in the middle of the signal terminal to meet subsequent protection requirements. In this embodiment, a sealing notch 12 is formed in the middle of the signal terminal 1. The sealing ring is sealed in the sealing notch to install and fix the sealing structure. Of course, the sealing structure can also be installed in other ways, which is not limited to this.

[0034] An outer spring piece 13 is also provided near the rear end of the outer side of the signal terminal 1. The outer spring piece 13 is located in a plurality of slots opened near the rear end of the terminal. There are two outer spring pieces 13, which are designed in an "eight" shape outward from the slots as a predetermined axial limit to prevent the signal terminal from retreating after installation.

[0035] The tail end of the signal terminal is provided with a plurality of second spring pieces 15 opened toward the tail end, the second spring pieces 15 are located in a plurality of second strip holes opened at the tail end of the signal terminal, and the middle of the second spring piece 15 is recessed into the second strip hole, and the tail of the second spring piece 15 is bent outward. The structure of the second spring piece 15 is the same as that of the first spring piece 11, and they are symmetrically arranged. This design allows the charging gun needle to be smoothly inserted into the tail end of the signal terminal.

[0036] The signal terminal of this embodiment is formed by stamping, so that its weight is lighter than before and the forming efficiency is higher.

[0037] Optionally, end protrusions 14 are formed outside the signal terminals in the opening direction of the first spring sheet 11 and the second spring sheet 15. The design of three or more end protrusions can increase the effective contact area and have a certain centering effect.

[0038] Preferably, the first spring pieces 11 and the second spring pieces 15 are arranged along the circumference of the signal terminal, four of each are arranged and are evenly distributed.

[0039] Optionally, in order not to affect the structural strength of the signal terminal, the notch and the strip hole are spaced apart.

[0040] Combined with Figure 2 As shown, the signal terminal is installed in the housing: the tail end of the signal terminal is inserted into the housing 3, and the second spring piece 15 at the tail end of the signal terminal can better connect to the charging gun needle; the eight-shaped outer spring piece 13 cooperates with the limiting boss in the housing 3 to prevent the signal terminal from withdrawing from the housing; the sealing structure of the signal terminal seals between the signal terminal and the housing to meet the protection level requirements. Preferably, the sealing structure is interference fit with the housing.

[0041] Combined with Figure 3 As shown, the signal terminal is installed on the PCBA board: the front end of the signal terminal is plugged into the signal pin 5 on the PCBA board 4, and the first spring sheet 11 at the rear end of the signal terminal can better connect the signal pin. The end bump 14 is set to prevent the signal terminal from retreating.

[0042] The present embodiment also discloses a charging socket, comprising the above-mentioned signal terminal, shell and PCBA board, the tail end of the signal terminal is inserted into the shell, the PCBA board is arranged on the shell, and the signal pin arranged on the PCBA board is plugged into the front end of the signal terminal. Through the spring structure design of the signal terminal, the signal pin and the charging gun pin can be better connected.

[0043] Although the present invention is described herein with reference to the illustrative embodiments of the present invention, the above embodiments are merely preferred embodiments of the present invention, and the embodiments of the present invention are not limited to the above embodiments. It should be understood that those skilled in the art can design many other modifications and implementations, which will fall within the scope and spirit of the principles disclosed in this application.

Claims

1. A signal terminal for a charging socket, characterized in that: Several spring structures are formed circumferentially at the front and rear ends of the signal terminal and are open to the ends. The spring structures are respectively located in several strip holes formed by the signal terminal, and the middle of the spring structure is recessed into the strip hole, and the tail of the spring structure is bent outward of the strip hole to clamp the signal pin and the charging gun pin inserted into the signal terminal; A sealing structure for sealing the signal terminal and the housing is provided in the middle of the signal terminal; An outer spring sheet is arranged between the spring sheet structure and the sealing structure of the signal terminal, and is used for axially limiting the position of the housing to prevent the signal terminal from withdrawing after installation.

2. The signal terminal according to claim 1, characterized in that: The sealing structure is formed by plastic sealing at least two sealing rings with triangular cross sections outside the signal terminal.

3. The signal terminal according to claim 1, characterized in that: The outer spring piece is in an eight-shaped shape and is used to cooperate with the limiting boss of the shell.

4. The signal terminal according to claim 3, characterized in that: The signal terminal is formed with a plurality of notches, and the outer spring pieces are located outside the notches.

5. The signal terminal according to claim 4, characterized in that: The notch and the strip hole are arranged at intervals.

6. The signal terminal according to claim 1, characterized in that: An end convex point is formed outside the signal terminal in the opening direction of the spring structure.

7. The signal terminal according to claim 1, characterized in that: The number of spring structures at the front and rear ends of the signal terminal is four and they are evenly distributed.

8. The signal terminal according to claim 1, characterized in that: The signal terminal is formed by stamping.

9. A charging socket, characterized in that: It comprises the signal terminal, shell and PCBA board as described in any one of claims 1 to 8, the rear end of the signal terminal is inserted in the shell, the PCBA board is arranged on the shell, and the signal pin arranged on the PCBA board is plugged into the front end of the signal terminal, and the signal pin and the charging gun pin are connected through the spring structure of the signal terminal.

10. A charging socket according to claim 9, characterized in that: The sealing structure is interference fit with the housing.

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