Charging socket device for electric vehicle

Abstract

The invention provides a charging socket device for an electric vehicle, which comprises a charging socket with pins and a circuit board, the circuit board is provided with through holes matched with the pins, the circuit board is sleeved on the pins of the charging socket through the through holes, and the circuit board and the pins are fixed and electrically connected. According to the charging socket device for the electric vehicle, an electric wire between the charging socket and the circuit board can be omitted, the cost is reduced, and installation is easy and convenient.

Description

Technical Field

[0001] The present invention belongs to the technical field of charging connection devices, and particularly relates to a charging socket device for electric vehicles. Background Art

[0002] Currently, the battery pack of an electric vehicle is directly connected to the charger, and the battery pack specifications cannot be confirmed. When using chargers with different specifications to charge the battery, phenomena such as overvoltage, overheating, and overcharging may occur during the charging process, resulting in problems such as abnormal battery failure and fire. Based on the regulations in the GB42296-2022 standard, mutual recognition between the battery pack and the charger must be achieved before charging. To solve the mutual recognition function between the battery pack and the charger, in addition to the power positive pin and the power negative pin, communication pins are added to the charging socket, and a circuit board with a mutual recognition function is also added. However, currently, the electrical connection between the circuit board and the pins of the charging socket is achieved by wires, that is, one end of the wire is welded to the pin of the charging socket, and the other end of the wire is welded to the circuit board, which increases the usage amount of wires, increases the cost, and also increases the installation difficulty. Summary of the Invention

[0003] The technical problem to be solved by the present invention is: to provide a charging socket device for electric vehicles, which can omit the wires between the charging socket and the circuit board, reduce costs, and is simple and convenient to install.

[0004] To solve the above technical problem, the present invention provides a charging socket device for electric vehicles, including a charging socket with pins and a circuit board. Through holes adapted to the pins are provided on the circuit board, and the circuit board is sleeved on the pins of the charging socket through the through holes, and the circuit board and the pins are fixed and electrically connected.

[0005] As a further improvement of the present invention, a connecting portion is provided in the through hole, and the connecting portion is fixed and electrically connected to the pin.

[0006] As a further improvement of the present invention, one end of the pin is open, and the cross-section is U-shaped; the connecting portion is strip-shaped, one end of the connecting portion is fixedly connected to the inner wall of the through hole, and the other end of the connecting portion passes through the opening of the pin and is located in the pin.

[0007] As a further improvement of the present invention, the cross-section of the pin is circular, the connecting portion is circular, the connecting portion is fixedly connected to the inner wall of the through hole, and the connecting portion is located outside the pin;

[0008] Or, the cross-section of the pin is circular, the connecting portion is circular, the connecting portion is fixedly connected to the inner wall of the through hole, and the connecting portion is located outside or inside the pin;

[0009] Or, the cross-section of the pin is circular, the connecting portion is circular, the connecting portion is connected to the through hole, and the connecting portion is located inside the pin.

[0010] As a further improvement of the present invention, the circuit board is directly connected to the pins, eliminating the need for wires.

[0011] As a further improvement of the present invention, the circuit board and the pins are connected by soldering or riveting.

[0012] As a further improvement of the present invention, the number of the pins is 3 to 6.

[0013] As a further improvement of the present invention, it further includes a housing, the housing covers the outside of the circuit board, and the housing is connected to the charging socket.

[0014] As a further improvement of the present invention, the housing covers the outside of the circuit board by injection molding.

[0015] As a further improvement of the present invention, the electric vehicle includes an electric bicycle, an electric motorcycle, and an electric car.

[0016] Compared with the prior art, the technical solution of the present invention has the following beneficial effects:

[0017] The charging socket device for an electric vehicle provided by the present invention has a through hole on the circuit board that is adapted to the pins of the charging socket. The circuit board is sleeved on the pins of the charging socket through the through hole, and the circuit board and the pins are fixed and electrically connected; the electrical connection can be achieved between the circuit board and the pins without using wires, reducing costs; the circuit board is fixed by sleeving it on the pins, which is convenient for installation; the circuit board is directly fixed on the pins, and the installation is firm. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a schematic structural diagram of the socket device of the present invention;

[0019] Figure 2 is Figure 1 the schematic structural diagram of the charging socket in

[0020] Figure 3 is Figure 1 the schematic structural diagram of the circuit board in

[0021] In the figure: charging socket 1, pin 11, circuit board 2, through hole 21, connecting portion 22. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0022] The technical solution of the present invention will be described in detail below with reference to the drawings.

[0023] The embodiment of the present invention provides a charging socket device for an electric vehicle, as Figure 1As shown in the figure, it includes a charging socket 1 with a pin 11 and a circuit board 2. A through hole 21 adapted to the pin 11 is provided on the circuit board 2. The circuit board 2 is sleeved on the pin 11 of the charging socket 1 through the through hole 21, and the circuit board 2 and the pin 11 are fixed and electrically connected.

[0024] In the charging socket device of this embodiment, the circuit board 2 is sleeved on the pin 11 of the charging socket 1 through the through hole 21, and the circuit board 2 and the pin 11 are fixed and electrically connected. Electrical connection can be achieved between the circuit board 2 and the pin 11 without using wires, reducing costs. During installation, the circuit board is sleeved on the pin and fixed, which is convenient for installation. Moreover, the circuit board 2 is directly fixed on the pin 11, and the installation is firm.

[0025] In this embodiment, the circuit board 2 and the pin 11 are directly connected, eliminating the wires. The circuit board 2 and the pin 11 are connected by welding or riveting. Fixed connection can be achieved while realizing electrical connection.

[0026] Preferably, as Figure 2 shown, the number of pins 11 of the charging socket 1 is 3 to 6. The charging socket 1 at least includes a positive pin, a negative pin, and a communication pin.

[0027] Preferably, as Figure 3 shown, a connecting portion 22 is provided in the through hole 21, and the connecting portion 22 and the pin 11 are fixed and electrically connected. If the welding method is adopted, the connecting portion serves as a solder pad, and the pin 11 is welded to the connecting portion 22. If the riveting method is adopted, the connecting portion 22 serves as a receiving member, and the pin 11 is riveted to the connecting portion 22 under pressure.

[0028] Among them, the connection between the pin 11 of the charging socket 1 and the corresponding connecting portion 22 of the circuit board can be set in various forms. This embodiment provides the following several forms:

[0029] First, one end of the pin 11 is open, and the cross section is U-shaped. The connecting portion 22 is strip-shaped. One end of the connecting portion 22 is fixedly connected to the inner wall of the through hole 21, and the other end of the connecting portion 22 passes through the opening of the pin 11 and is located inside the pin 11. With the first form of the pin and the connecting portion, the connection between the pin and the connecting portion is more reliable.

[0030] Second, the cross section of the pin 11 is circular, and the connecting portion 22 is circular ring-shaped. As Figure 3 shown, the connecting portion 22 is fixedly connected to the inner wall of the through hole 21, and the connecting portion 22 is located outside the pin 11. With the second form of the pin and the connecting portion, the pin and the circuit board are easily docked during installation, improving the installation efficiency.

[0031] Thirdly, the cross-section of the pin 11 is annular, the connecting portion 22 is annular, the connecting portion 22 is fixedly connected to the inner wall of the through hole 21, and the connecting portion 22 is located outside or inside the pin 11.

[0032] Fourthly, the cross-section of the pin 11 is annular, the connecting portion 22 is circular, the connecting portion 22 is connected to the through hole 21, and the connecting portion 22 is located inside the pin 11.

[0033] By adopting the third and fourth forms of the pins and the connecting portions, the materials for preparing the pins 11 can be saved and the cost can be reduced.

[0034] Preferably, the charging socket device for an electric vehicle in this embodiment further includes a housing, the housing covers the outside of the circuit board 2, and the housing is connected to the charging socket 1. Further preferably, the housing covers the outside of the circuit board 2 by an injection molding method. The housing protects the circuit board, and after being connected to the charging socket 1, it protects the connection between the circuit board and the pins, improving the reliability of the whole device.

[0035] Preferably, the electric vehicle includes an electric bicycle, an electric motorcycle, and an electric car. The charging socket device in this embodiment can be installed on an electric bicycle, an electric motorcycle, and an electric car, and is connected to a battery pack for inserting the plug of a charger during charging.

[0036] The above is only the specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any changes or substitutions that can be easily thought of by those skilled in the art within the technical scope disclosed by the present invention should be covered by the protection scope of the present invention.

Claims

1. A charging socket device for an electric vehicle, characterized in that: The invention comprises a charging socket (1) including a pin (11) and a circuit board (2); the circuit board (2) is provided with a through hole (21) adapted to the pin (11); the circuit board (2) is sleeved on the pin (11) of the charging socket (1) through the through hole (21); the circuit board (2) and the pin (11) are fixed and electrically connected.

2. The charging socket device for an electric vehicle according to claim 1, characterized in that: A connecting portion (22) is provided in the through hole (21), and the connecting portion (22) and the pin (11) are fixed and electrically connected.

3. The charging socket device for an electric vehicle according to claim 2, characterized in that: One end of the pin (11) is open and has a U-shaped cross section; the connecting portion (22) is strip-shaped, one end of the connecting portion (22) is fixedly connected to the inner wall of the through hole (21), and the other end of the connecting portion (22) passes through the opening of the pin (11) and is located in the pin (11).

4. The charging socket device for an electric vehicle according to claim 2, characterized in that: The pin (11) has a circular cross-section, the connecting portion (22) is annular, the connecting portion (22) is fixedly connected to the inner wall of the through hole (21), and the connecting portion (22) is located outside the pin (11); or, the pin (11) has a circular cross-section, the connecting portion (22) is annular, the connecting portion (22) is fixedly connected to the inner wall of the through hole (21), and the connecting portion (22) is located outside or inside the pin (11); Alternatively, the pin (11) has a circular cross-section, the connecting portion (22) is circular, the connecting portion (22) is connected to the through hole (21), and the connecting portion (22) is located inside the pin (11).

5. The charging socket device for an electric vehicle according to claim 1, characterized in that: The circuit board (2) and the pins (11) are directly connected, eliminating the need for wires.

6. The charging socket device for an electric vehicle according to claim 1, characterized in that: The circuit board (2) and the pin (11) are connected by welding or riveting.

7. The charging socket device for an electric vehicle according to claim 1, characterized in that: The number of the pins (11) is 3 to 6.

8. The charging socket device for an electric vehicle according to claim 1, characterized in that: It also comprises a shell, which is coated on the outside of the circuit board (2) and is connected to the charging socket (1).

9. The charging socket device for an electric vehicle according to claim 8, characterized in that: The shell is coated on the outside of the circuit board (2) by injection molding.

10. The charging socket device for an electric vehicle according to claim 1, characterized in that: The electric vehicles include electric bicycles, electric motorcycles, and electric cars.

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