Electric leakage protection device of charging pile

Abstract

The utility model provides a charging pile electric leakage protection device comprising a residual current sensor arranged in a charging pile, the residual current sensor comprises a housing and a housing plate, a clamping fixing structure is arranged between the housing and the housing plate, the housing plate is provided with a wiring end, the housing plate is provided with a plug fixing structure, and the plug fixing structure is provided with a plug. The plug fixing structure corresponds to the clamping fixing structure, mounting plates are fixed to the two sides of the shell, a mounting base is fixed in the charging pile, and the mounting base and the mounting plate are clamped and fixed. According to the utility model, the clamping fixing structure is installed between the housing and the housing plate, the housing plate is convenient to disassemble, the interior of the residual current sensor is convenient to maintain, the plug fixing structure is installed on the housing plate, the plug of the output line can be fixed, the output line is prevented from loosening, signal output is ensured, and poor contact is prevented. The mounting plates are fixedly arranged on the two sides of the shell, and the mounting seat is fixed in the charging pile, so that the residual current sensor can be clamped and fixed.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of leakage protection, specifically is a charging pile leakage protection device. BACKGROUND

[0002] The charging pile is similar to the oiling machine in the gas station, can be fixed on the ground or wall, is installed in the public building and residential quarter parking lot or charging station, and can charge various models of electric vehicles according to different voltage grades, in order to guarantee charging safety, usually installs leakage protection structure in the charging pile, and the residual current sensor is the detection element of the leakage protector, its main function is to detect the residual current of the main circuit through the sensor core, and the residual current sensor is one of the most critical components in the leakage protector, and the existing residual current sensor is mostly fixed in the charging pile directly by bolt, but after installation, it is usually difficult to disassemble, is inconvenient to replace and maintain, and the output cable is prone to loosening, thereby affecting signal output.

[0003] Therefore, the utility model provides a kind of charging pile leakage protection device. UTILITY MODEL CONTENT

[0004] In view of the deficiencies in the prior art, the utility model aims to provide a kind of charging pile leakage protection device to solve the problems raised in the above background art, the utility model is convenient to disassemble shell plate, to facilitate the maintenance of the residual current sensor inside;The plug of output line can be fixed to prevent the output line from loosening, ensure the output of signal, and prevent poor contact;The residual current sensor can be clamped and fixed, so that the residual current sensor can be easily disassembled and replaced.

[0005] In order to achieve the above purpose, the utility model is realized by the following technical scheme: a kind of charging pile leakage protection device, including the residual current sensor installed in the charging pile, the residual current sensor includes shell and shell plate, clamping and fixing structure is installed between shell and shell plate, wiring terminal is installed on shell plate, plug fixing structure is installed on shell plate, plug fixing structure corresponds to clamping and fixing structure, both sides of shell are fixed with mounting plate, mounting seat is fixed in the charging pile, and mounting seat is clamped and fixed with mounting plate.

[0006] Further, the clamping and fixing structure includes a sleeve, the sleeve is fixedly connected with the shell, and the sleeve corresponds to the shell plate.

[0007] Further, the sleeve includes a fixed part and an elastic part, and the plug fixing structure corresponds to the elastic part.

[0008] Further, the plug fixing structure includes a pressing plate, a pressing rod is fixed on the pressing plate, and one end of the pressing rod is in contact with the elastic part.

[0009] Furthermore, multiple screws are fixed on the shell plate, and a wire feeding groove and multiple first through grooves are opened in the pressure plate. A limit block is fixed in the wire feeding groove, and the first through grooves correspond to the screws.

[0010] Furthermore, the screw is equipped with two nuts, which are located on both sides of the pressure plate.

[0011] Furthermore, both the mounting base and the mounting plate are L-shaped structures, and the mounting plate has two second through slots.

[0012] Furthermore, an elastic locking block is fixed on the mounting base, the elastic locking block corresponds to the second through slot, and a fixing bolt is installed on the mounting base, which is fixed to the charging pile by the fixing bolt.

[0013] The beneficial effects of this utility model are as follows: This utility model provides a charging pile leakage protection device, which includes a shell; a shell plate; a snap-fit ​​fixing structure; a residual current sensor; a plug fixing structure; a mounting plate; and a mounting base.

[0014] A snap-fit ​​fixing structure is installed between the outer shell and the shell plate to facilitate the disassembly of the shell plate, thereby facilitating the internal maintenance of the residual current sensor. A plug fixing structure is installed on the shell plate to fix the plug of the output line, preventing the output line from becoming loose, ensuring signal output, and preventing poor contact. Mounting plates are fixed on both sides of the outer shell, and mounting bases are fixed inside the charging pile to snap-fit ​​and fix the residual current sensor, thereby facilitating the disassembly and replacement of the residual current sensor. Attached Figure Description

[0015] Fig. 1 This is a three-dimensional assembly diagram of the overall structure of the leakage protection device for charging piles according to this utility model.

[0016] Fig. 2 This is a three-dimensional structural diagram of the screw and pressure plate assembly in a charging pile leakage protection device of this utility model;

[0017] Fig. 3 This is a three-dimensional structural diagram of the residual current sensor assembly in a charging pile leakage protection device according to the present invention.

[0018] Fig. 4 This is a three-dimensional structural diagram of the mounting base in a charging pile leakage protection device according to the present invention.

[0019] In the diagram: 1. Residual current sensor; 2. Housing; 3. Shell plate; 4. Terminal; 5. Sleeve; 6. Fixing part; 7. Elastic part; 8. Mounting base; 9. Mounting plate; 10. Elastic locking block; 11. First through slot; 12. Fixing bolt; 13. Pressure plate; 14. Wire release slot; 15. Limiting block; 16. Pressure rod; 17. Screw; 18. Second through slot; 19. Nut. DETAILED DESCRIPTION

[0020] In order to make the technical means, creative features, purposes and effects of the utility model easy to understand, the utility model is further described below in combination with specific embodiments.

[0021] Please refer to Figs. 1 to 4 The utility model provides a technical scheme: a charging pile electric leakage protection device, including the remaining current sensor 1 of installing in the charging pile, the remaining current sensor 1 includes shell 2 and shell plate 3, and the clamping fixed structure is installed between shell 2 and shell plate 3, and the wiring end 4 is installed on shell plate 3, and the plug fixing structure is installed on shell plate 3, and the plug fixing structure corresponds with the clamping fixed structure, both sides of shell 2 are fixed with mounting plate 9, and the mounting seat 8 is fixed in the charging pile, and the mounting seat 8 is clamped and fixed with mounting plate 9.

[0022] In this embodiment, the clamping fixed structure includes a clamping sleeve 5, which is fixedly connected with the shell 2 and corresponds with the shell plate 3. The clamping sleeve 5 includes a fixed portion 6 and an elastic portion 7, and the plug fixing structure corresponds with the elastic portion 7.

[0023] Specifically, the shell plate 3 is fixed by the clamping sleeve 5. When the shell plate 3 needs to be disassembled, the elastic portion 7 can be actuated to no longer limit the shell plate 3, so that the shell plate 3 can be disassembled, thereby facilitating the maintenance of the internal structure of the remaining current sensor 1.

[0024] The plug fixing structure includes a pressing plate 13, and a pressing rod 16 is fixed to the pressing plate 13. One end of the pressing rod 16 is in contact with the elastic portion 7. A plurality of screw rods 17 are fixed to the shell plate 3. A wire slot 14 and a plurality of first through slots 11 are formed in the pressing plate 13. A limiting clamping block 15 is fixed in the wire slot 14. The first through slots 11 correspond with the screw rods 17. Two nuts 19 are installed on the screw rods 17, and the two nuts 19 are respectively located on both sides of the pressing plate 13.

[0025] Specifically, the elastic portion 7 can be pressed by the pressing rod 16, thereby preventing the shell 2 and the shell plate 3 from separating during work.

[0026] When the plug of the output line is inserted, the pressing plate 13 can be pushed at this time, so that the pressing plate 13 extrudes the plug until the pressing rod 16 is in contact with the elastic portion 7. Then, the nuts 19 are rotated to fix the position of the pressing plate 13, thereby fixing the plug.

[0027] The mounting seat 8 and the mounting plate 9 are both L-shaped structures. Two second through slots 18 are formed in the mounting plate 9. An elastic clamping block 10 is fixed to the mounting seat 8. The elastic clamping block 10 corresponds with the second through slots 18. A fixing bolt 12 is fixed to the mounting seat 8. The mounting seat 8 is fixed in the charging pile by the fixing bolt 12.

[0028] Specifically, the mounting seat 8 is fixed in the charging pile through the fixing bolt 12, then the mounting plate 9 is placed on the mounting seat 8, the mounting plate 9 is pressed, the elastic clamping block 10 is inserted into the second through groove 18, the mounting plate 9 is fixed, and thus the residual current sensor 1 is fixed.

[0029] In addition, it should be understood that, although the present specification is described in terms of embodiments, not every embodiment contains only one independent technical solution, and the description of the specification is only for the sake of clarity, and those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can be appropriately combined to form other embodiments that those skilled in the art can understand.

Claims

1. A charging pile earth leakage protection device, comprising a residual current sensor (1) installed in the charging pile, characterized in that, The residual current sensor (1) comprises a shell (2) and a shell plate (3), a clamping fixing structure is arranged between the shell (2) and the shell plate (3), a wiring end (4) is arranged on the shell plate (3), a plug fixing structure is arranged on the shell plate (3), the plug fixing structure corresponds to the clamping fixing structure, mounting plates (9) are fixed on both sides of the shell (2), a mounting seat (8) is fixed in the charging pile, and the mounting seat (8) is clamped and fixed with the mounting plate (9).

2. The electric leakage protection device for charging pile according to claim 1, characterized in that: The clamping fixing structure comprises a clamping sleeve (5), the clamping sleeve (5) is fixedly connected with the shell (2), and the clamping sleeve (5) corresponds to the shell plate (3).

3. The electric leakage protection device for charging pile according to claim 2, characterized in that: The clamping sleeve (5) comprises a fixed portion (6) and an elastic portion (7), and the plug fixing structure corresponds to the elastic portion (7).

4. The electric leakage protection device for charging pile according to claim 3, characterized in that: The plug fixing structure comprises a pressing plate (13), a pressing rod (16) is fixed on the pressing plate (13), and one end of the pressing rod (16) is in contact with the elastic portion (7).

5. The electric leakage protection device for charging pile according to claim 4, characterized in that: A plurality of screw rods (17) are fixed on the shell plate (3), a pay-off groove (14) and a plurality of first through grooves (11) are formed in the pressing plate (13), a limiting clamping block (15) is fixed in the pay-off groove (14), and the first through grooves (11) correspond to the screw rods (17).

6. The electric leakage protection device for charging pile according to claim 5, characterized in that: Two nuts (19) are arranged on the screw rod (17), and the two nuts (19) are located on both sides of the pressing plate (13).

7. The electric leakage protection device for charging pile according to claim 1, characterized in that: The mounting seat (8) and the mounting plate (9) are both L-shaped structures, and two second through grooves (18) are formed in the mounting plate (9).

8. The electric leakage protection device for charging pile according to claim 7, characterized in that: An elastic clamping block (10) is fixed on the mounting seat (8), the elastic clamping block (10) corresponds to the second through groove (18), a fixing bolt (12) is arranged on the mounting seat (8), and the mounting seat (8) is fixed in the charging pile through the fixing bolt (12).

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