National standard direct current charging seat

Abstract

The utility model discloses a national standard direct current charging seat which is convenient to disassemble and assemble and has multiple installation modes. According to the technical scheme, the low-voltage auxiliary power supply connector comprises a shell, a lining, a DC terminal, a signal terminal and a low-voltage auxiliary power supply terminal, the lining, the DC terminal, the signal terminal and the low-voltage auxiliary power supply terminal are arranged in the shell, a tail cover is arranged at the rear end of the shell, annular clamping grooves are formed in the rear ends of the signal terminal and the low-voltage auxiliary power supply terminal, sealing rings are arranged at the front ends of the annular clamping grooves, and wire pressing pins are arranged at the rear ends of the annular clamping grooves. A U-shaped clamping groove connected with the annular clamping groove in a clamped mode is formed in the front end of the lining, a first wiring groove is correspondingly formed behind the U-shaped clamping groove, and a sealing gasket is arranged at the rear end of the lining. The advantages are as follows: the rear ends of various terminals can be directly fixed on the bushing and form an assembly with the bushing after being assembled, so that the disassembly and assembly are more convenient, and subsequent damaged parts are easy to replace and maintain.

Description

Technical Field

[0001] The utility model belongs to the field of new energy vehicles, and particularly relates to a national standard DC charging socket. Background Art

[0002] The national standard DC charging socket, as the name implies, is a DC charging socket that meets the national design standard. Its structure includes: a housing and a bushing, a DC terminal, a signal terminal, and a low-voltage auxiliary power supply terminal provided in the housing. The disadvantages of traditional national standard DC charging sockets are: 1. It is not convenient to disassemble, and it is not easy to replace damaged parts and perform maintenance later; 2. The installation is convenient and single, and it cannot meet the requirements of different installation flanges. Content of the Utility Model

[0003] The technical problem to be solved by the utility model is to provide a national standard DC charging socket that is convenient to disassemble and assemble and has multiple installation methods.

[0004] To solve the above problems, the technical solutions adopted by the utility model include: a housing and a bushing, a DC terminal, a signal terminal, and a low-voltage auxiliary power supply terminal provided in the housing. A tail cover is provided at the rear end of the housing. It is characterized in that: annular grooves are provided at the rear ends of the signal terminal and the low-voltage auxiliary power supply terminal. A sealing ring is provided at the front end of the annular groove, and a wire pressing foot is provided at the rear end. A U-shaped groove that is snap-fitted with the annular groove is provided at the front end of the bushing, and a first wire routing groove is provided corresponding to the rear of the U-shaped groove. A sealing gasket is provided at the rear end of the bushing.

[0005] The national standard DC charging socket is characterized in that: a welding row is integrally formed at the rear end of the DC terminal. A lower support surface for supporting the welding row and an upper support surface for supporting the cable welding surface are provided at the front end of the bushing. A temperature sensor mounting groove is provided on the lower support surface. A temperature sensor is installed through the temperature sensor mounting groove, and the surface of the temperature sensor is in contact with the welding row.

[0006] The national standard DC charging socket is characterized in that: a PCB board mounting groove is provided at the rear end of the bushing. A PCB board is installed through the PCB board mounting groove, and a second wire routing groove is provided below the PCB board mounting groove.

[0007] The national standard DC charging socket is characterized in that: a group of sealing columns corresponding to the first wire routing groove are provided on the sealing gasket, and a positioning sleeve adapted to the sealing columns is provided on the tail cover.

[0008] The national standard DC charging socket is characterized in that: symmetric short ear hole plates are provided at one end of the housing, and symmetric long ear hole plates are provided at the other end.

[0009] The national standard DC charging socket is characterized in that: a large card slot and a small card slot are provided between the housing corresponding to the short ear hole plates.

[0010] The national standard DC charging socket is characterized in that: a group of convex ribs are arranged inside the wire pressing foot.

[0011] The advantages of the national standard DC charging socket of the present utility model are as follows:

[0012] 1. The rear ends of various terminals can be directly fixed on the bushing, and after assembly, a total assembly is formed with the bushing, making disassembly and assembly more convenient and facilitating the replacement and repair of subsequent damaged parts;

[0013] 2. Multiple installation methods are provided to meet the requirements of different installation flanges.

[0014] The present utility model will be further described below in conjunction with the accompanying drawings of the specification. Description of the Drawings

[0015] Figure 1 is a structural schematic diagram of the national standard DC charging socket of the present utility model;

[0016] Figure 2 is an exploded view of the national standard DC charging socket of the present utility model;

[0017] Figure 3 is a structural schematic diagram of the signal terminal of the present utility model;

[0018] Figure 4 is a structural schematic diagram of the DC terminal of the present utility model;

[0019] Figure 5 is a front structural schematic diagram of the bushing of the present utility model;

[0020] Figure 6 is a rear structural schematic diagram of the bushing of the present utility model;

[0021] Figure 7 is an installation schematic diagram between the bushing and the terminal of the present utility model. Detailed Embodiment

[0022] Refer to Figure 1-7As shown in the figure, the national standard DC charging socket of the present utility model includes a housing 1, a bushing 3, a DC terminal 4, a signal terminal 5, and a low-voltage auxiliary power supply terminal 6 provided in the housing 1. A tail cover 2 is provided at the rear end of the housing 1, and the tail cover 2 is fixed to the housing 1 by screws. Annular grooves 7 are provided at the rear ends of the signal terminal 5 and the low-voltage auxiliary power supply terminal 6. A sealing ring 8 is provided at the front end of the annular groove 7, and a wire pressing foot 9 is provided at the rear end of the annular groove 7. The sealing ring 8 is in sealing cooperation with the installation cavity of the housing 1, and the wire pressing foot 9 is used for pressing and connecting wires. A U-shaped groove 10 that is snap-fitted with the annular groove 7 is provided at the front end of the bushing 3, and a first wire routing groove 11 is provided corresponding to the rear of the U-shaped groove 10. A sealing gasket 12 is provided at the rear end of the bushing 3. During assembly: First, press and connect the wire to the wire pressing foot 9, and then snap the annular grooves 7 of the signal terminal 5 and the low-voltage auxiliary power supply terminal 6 into the U-shaped groove 10 of the bushing 3. Then lead the wire out of the sealing gasket 12 along the first wire routing groove 11, making the overall layout simple and the sealing performance good.

[0023] Preferably, a welding row 13 is integrally formed at the rear end of the DC terminal 4. A lower support surface 14 for supporting the welding row 13 and an upper support surface 15 for supporting the cable welding surface are provided at the front end of the bushing 3. The cable welding surface is welded to the welding row 13 by ultrasonic welding and is fixed between the lower support surface 14 and the upper support surface 15 at the same time, making the connection more stable. A temperature sensor installation groove 16 is provided on the lower support surface 14, and a temperature sensor 17 is installed through the temperature sensor installation groove 16, and the surface of the temperature sensor 17 is in contact with the welding row 13. Through the above structure, it is convenient to disassemble and assemble the temperature sensor 17.

[0024] Preferably, a PCB board installation groove 18 is provided at the rear end of the bushing 3. A PCB board 19 is installed through the PCB board installation groove 18 and is fixed by screws. A second wire routing groove 20 is provided below the PCB board installation groove 18 for routing the wires on the PCB board 19. Through the above structure, it is convenient to install the PCB board 19 and route the wires on the PCB board 19.

[0025] Preferably, a group of sealing posts 21 corresponding to the first wire routing groove 11 are provided on the sealing gasket 12, and a positioning sleeve 22 adapted to the sealing posts 21 is provided on the tail cover 2. Through the positioning cooperation of the sealing posts 21 and the positioning sleeve 22, the sealing gasket 12 is more stably fixed on the tail cover 2 and the sealing effect can be improved.

[0026] Preferably, one end of the housing 1 is provided with symmetric short ear hole plates 23, and the other end is provided with symmetric long ear hole plates 24. Different installation requirements are met through the short ear hole plates 23 and the long ear hole plates 24. A large card slot 25 and a small card slot 26 are provided between the short ear hole plates 23 corresponding to the housing 1. Different card rail installation requirements are met through the large card slot 25 and the small card slot 26.

[0027] Preferably, a group of convex ribs 27 are provided inside the wire pressing foot 9 to improve the crimping strength with the wire.

[0028] As mentioned above, it does not impose any formal restrictions on the present utility model. Although the present utility model has been disclosed above with preferred implementation cases, it is not intended to limit the present utility model. Any person skilled in the art, without departing from the scope of the technical solution of the present utility model, can make some changes or modifications to the above-disclosed structure and technical content to form equivalent implementation cases of equivalent changes. However, as long as it does not depart from the content of the technical solution of the present utility model, any simple modification, equivalent change and modification made to the above implementation cases based on the technical essence of the present utility model still fall within the scope of the technical solution of the present utility model.

Claims

1. A national standard DC charging stand, comprising a housing (1) and a bushing (3), a DC terminal (4), a signal terminal (5) and a low-voltage auxiliary power terminal (6) arranged in the housing (1), wherein a tail cover (2) is provided at the rear end of the housing (1), and the characteristics are: The rear ends of the signal terminal (5) and the low-voltage auxiliary power terminal (6) are both provided with an annular groove (7), the front end of the annular groove (7) is provided with a sealing ring (8), and the rear end is provided with a wire pressing foot (9), the front end of the bushing (3) is provided with a U-shaped groove (10) engaged with the annular groove (7), and a first wiring groove (11) is provided at the rear of the U-shaped groove (10), and the rear end of the bushing (3) is provided with a sealing gasket (12).

2. According to the national standard DC charging station of claim 1, it is characterized by: The rear end of the DC terminal (4) is integrally formed with a welding row (13); the front end of the bushing (3) is provided with a lower support surface (14) for supporting the welding row (13) and an upper support surface (15) for supporting a cable welding surface; the lower support surface (14) is provided with a temperature sensor mounting groove (16); a temperature sensor (17) is mounted through the temperature sensor mounting groove (16), and a surface of the temperature sensor (17) is in contact with the welding row (13).

3. According to the national standard DC charging station of claim 1, it is characterized by: A PCB board mounting groove (18) is provided at the rear end of the bushing (3), a PCB board (19) is mounted through the PCB board mounting groove (18), and a second wiring groove (20) is provided below the PCB board mounting groove (18).

4. According to the national standard DC charging station of claim 1, it is characterized by: The sealing pad (12) is provided with a group of sealing columns (21) corresponding to the first wiring groove (11), and the tail cover (2) is provided with a positioning sleeve (22) adapted to the sealing columns (21).

5. According to the national standard DC charging station of claim 1, it is characterized by: The housing (1) is provided with a symmetrical short ear hole plate (23) at one end and a symmetrical long ear hole plate (24) at the other end.

6. According to the national standard DC charging station of claim 5, it is characterized by: A large slot (25) and a small slot (26) are provided between the housing (1) and the short ear hole plate (23).

7. According to the national standard DC charging station of claim 1, it is characterized by: A group of convex ribs (27) are provided inside the presser foot (9).

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