Protective device for short circuit of charging module

Abstract

The utility model discloses a protective device for short circuit of a charging module in the technical field of high-voltage charging piles, which is reasonable in structure and enables high-voltage lines to sequentially enter the high-voltage charging piles from wire arrangement holes in a wire arrangement plate through arrangement of an annular clamping plate and a spring. Then the annular clamping plate is correspondingly arranged in the mounting hole in the U-shaped seat through the limiting column in a sliding manner, so that when the high-voltage line and the charging module are subjected to wiring treatment, the annular clamping plate is matched with the spring, basic elastic clamping treatment is performed on the high-voltage line, and after the high-voltage line and the charging module line are connected, the screw rod is rotated until the screw rod tightly abuts against the annular clamping plate; therefore, the outer wall of the high-voltage line can be fixed after being elastically clamped, the situation that after the high-voltage line is connected with the charging module, the line is prone to falling off or loosening under the influence of shaking, and consequently short circuit or poor contact is caused is avoided as much as possible, and it is effectively guaranteed that the charging module is subjected to short circuit prevention treatment.

Description

Technical Field

[0001] The utility model relates to the technical field of high-voltage charging piles, in particular to a protection device for short-circuiting a charging module. Background Art

[0002] The high-voltage charging pile charging module refers to a device used to provide high-voltage power to electric vehicles for fast charging. The module usually includes components such as a high-voltage charger, a charging interface, and a control system, which can convert the AC power in the power grid into DC power suitable for charging electric vehicles. The high-voltage charging pile charging module has the characteristics of fast charging speed, high efficiency, safety and reliability, and is an important part of the charging infrastructure of electric vehicles. The charging module inside the high-voltage charging pile needs to be connected to the external high-voltage line for energy transmission. At present, the connection between the charging module and the high-voltage line is usually installed by bolting the contact end. However, during long-term use, shaking or jittering may easily cause the contact end of the charging module and the high-voltage line to loosen or fall off. However, if the fallen end of the line contacts the line at other positions, the charging module will short-circuit. At the same time, long-term loose lines may greatly increase resistance, leading to local overheating, and then cause the risk of fire. If it is discovered in time, the high-voltage charging pile will be maintained and repaired in time. If it is not discovered in time, the whole set of equipment will be damaged, which will reduce the safety of the high-voltage charging pile and directly affect the durability and stability of the internal modules of the whole set of equipment.

[0003] Therefore, it is necessary to develop a protective device for charging module short circuit. Utility Model Content

[0004] The utility model aims to provide a protective device for charging module short circuit, which is provided with an annular clamp and a spring, and the high-voltage line is sequentially and orderly entered into the high-voltage charging pile through the wiring hole on the wiring board, and then the annular clamp is slidably arranged in the mounting hole on the U-shaped seat by the limit column, so that when the high-voltage line and the charging module are connected, the annular clamp is first matched with the spring to perform basic elastic clamping treatment on the high-voltage line, and after the high-voltage line is connected with the charging module line, the screw is rotated to tighten the annular clamp, so that the outer wall of the high-voltage line can be elastically clamped and fixed, and the situation that the line is easily affected by shaking and falls off or loosens after being connected with the charging module, causing short circuit or poor contact, is avoided as much as possible, and the charging module is effectively protected from short circuit treatment, and the durability and operation stability of the charging module are effectively improved, so as to solve the problem that the charging module is prone to short circuit in the above background technology.

[0005] To achieve the above object, the utility model provides the following technical solution: a protection device for charging module short circuit, comprising a high-voltage charging pile, wherein a charging module is installed above the interior of the high-voltage charging pile, and a mounting frame is installed below the interior of the high-voltage charging pile;

[0006] A connecting plate is installed on the front end surface of the mounting frame, and a U-shaped seat is installed on the outer wall of the connecting plate.

[0007] Preferably, a wiring board is provided below the rear end of the high-voltage charging pile, and wiring holes are provided on the surface of the wiring board.

[0008] Preferably, both outer walls of the connecting plate are provided with fixing seats, the fixing seats are fixed on the front end surface of the mounting frame, and the upper surface of the connecting plate is provided with positioning holes A.

[0009] Preferably, a slide groove is provided on the rear end surface of the U-shaped seat, the inner wall of the slide groove is slidably connected to the outer wall of the connecting plate, and a positioning hole B is provided at the center position of the upper surface of the U-shaped seat.

[0010] Preferably, mounting holes are provided above and below the outer walls on both sides of the U-shaped seat, and limiting columns are installed inside the mounting holes.

[0011] Preferably, the outer wall of the limiting column is slidably connected to the inner wall of the mounting hole, and a limiting ring is installed at one end of the limiting column.

[0012] Preferably, an annular clamping plate is provided at the other end of the limiting column, and a spring is provided on the outer wall of the limiting column.

[0013] Preferably, threaded holes are provided at the center positions of the outer walls on both sides of the U-shaped seat, and screws are connected to the internal threads of the threaded holes.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] By providing an annular clamp and a spring, the high-voltage line is sequentially and orderly introduced into the high-voltage charging pile through the wiring hole on the wiring board, and then the annular clamp is slidably arranged in the mounting hole on the U-shaped seat by the limit column. When the high-voltage line and the charging module are wired, the annular clamp is first matched with the spring to perform basic elastic clamping on the high-voltage line. After the high-voltage line is connected with the charging module, the screw is rotated to tighten the annular clamp, so that the outer wall of the high-voltage line can be elastically clamped and fixed, and the short circuit or poor contact caused by the line being easily affected by shaking after the high-voltage line is connected with the charging module can be avoided as much as possible. This effectively ensures that the charging module is prevented from short circuiting, and also effectively improves the durability and operation stability of the charging module. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 The overall structural diagram provided by the utility model;

[0017] Figure 2 A schematic cross-sectional view of a portion of the structure provided by the utility model;

[0018] Figure 3 The utility model provides Figure 2 A magnified view of the structure at A;

[0019] Figure 4 This is a partial structural decomposition schematic diagram provided by the utility model.

[0020] In the figure: 1. high-voltage charging pile; 101. charging module; 102. wiring board; 103. wiring hole; 2. mounting frame; 201. connecting plate; 202. fixing seat; 203. positioning hole A; 3. U-shaped seat; 301. slide groove; 302. positioning hole B; 303. mounting hole; 304. limiting column; 305. limiting ring; 306. annular clamp; 307. spring; 308. threaded hole; 309. screw. DETAILED DESCRIPTION

[0021] 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.

[0022] The utility model provides the following technical solutions: a protection device for short circuit of charging module, please refer to Figure 1-4 , including a high-voltage charging pile 1, a charging module 101 is installed on the upper part of the high-voltage charging pile 1, a wiring board 102 is arranged at the lower part of the rear end of the high-voltage charging pile 1, and wiring holes 103 are opened on the surface of the wiring board 102, and a mounting frame 2 is installed at the lower part of the high-voltage charging pile 1;

[0023] A connecting plate 201 is installed on the front end face of the mounting frame 2, and fixing seats 202 are installed on the outer walls of both sides of the connecting plate 201. The fixing seats 202 are fixed to the front end face of the mounting frame 2, and positioning holes A203 are provided on the upper surface of the connecting plate 201. U-shaped seats 3 are installed on the outer wall of the connecting plate 201, and a slide groove 301 is provided on the rear end face of the U-shaped seat 3. The inner wall of the slide groove 301 is slidably connected with the outer wall of the connecting plate 201. Three or more groups of U-shaped seats 3 are installed on the outer wall of the connecting plate 201 on the mounting frame 2 by the slide groove 301 in a sliding manner, so that the U-shaped seat 3 can move horizontally to the left or right on the end face of the mounting frame 2, and a positioning hole B302 is provided at the center position of the upper surface of the U-shaped seat 3. A positioning hole B302 is provided on the upper surface of the seat 3, and a plurality of positioning holes A203 are provided on the upper surface of the connecting plate 201, so that the left and right positions of the U-shaped seat 3 can be adjusted according to the needs. After the adjustment is completed, a pin shaft can be used to penetrate the positioning hole B302 and the positioning hole A203 to achieve the fixing of the position of the U-shaped seat 3. Mounting holes 303 are provided on the upper and lower sides of the outer walls of the U-shaped seat 3. A limiting column 304 is installed inside the mounting hole 303. The outer wall of the limiting column 304 is slidably connected with the inner wall of the mounting hole 303. A limiting ring 305 is installed at one end of the limiting column 304, and an annular clamping plate 306 is provided at the other end of the limiting column 304. A spring 307 is provided on the outer wall of the limiting column 304. A threaded hole 308 is provided at the center of the side outer wall, and a screw 309 is connected to the inner thread of the threaded hole 308. The annular clamping plate 306 is slidably mounted in the mounting hole 303 on the U-shaped seat 3 by the limiting column 304, so that the annular clamping plate 306 can slide left and right inside the U-shaped seat 3. By setting a limiting ring 305 at one end of the limiting column 304 and setting a spring 307 on the outer wall of the limiting column 304, the limiting ring 305 can limit the annular clamping plate 306 to prevent the annular clamping plate 306 from detaching from the U-shaped seat 3. At the same time, the elastic reaction force of the spring 307 can realize the elastic clamping effect of the annular clamping plate 306. By routing the high-voltage line through the wiring board 1 02 are sequentially and orderly inserted into the high-voltage charging pile 1, and then the annular clamp 306 is slidably arranged in the mounting hole 303 on the U-shaped seat 3 by the limiting column 304, so that when the high-voltage line and the charging module 101 are connected, the annular clamp 306 is first matched with the spring 307 to perform basic elastic clamping on the high-voltage line. After the high-voltage line and the charging module 101 are connected, the screw 309 is rotated to tighten the annular clamp 306, so that the outer wall of the high-voltage line can be elastically clamped and fixed, so as to avoid the situation that the line is easily affected by shaking and falls off or loosens after being connected to the charging module 101, thereby causing short circuit or poor contact.

[0024] Working principle: When using the utility model, three or more groups of U-shaped seats 3 are installed on the outer wall of the connecting plate 201 on the mounting frame 2 by sliding grooves 301, so that the U-shaped seats 3 can move horizontally to the left or right on the end surface of the mounting frame 2. By opening a positioning hole B302 on the upper surface of the U-shaped seat 3 and opening a plurality of positioning holes A203 on the upper surface of the connecting plate 201, the left and right positions of the U-shaped seat 3 can be adjusted according to needs. After the adjustment is completed, the pin can be used to penetrate the positioning hole B302. By means of the positioning hole A203, the position of the U-shaped seat 3 can be fixed. The annular clamping plate 306 is installed in the mounting hole 303 on the U-shaped seat 3 by the limiting column 304 in a sliding manner, so that the annular clamping plate 306 can slide left and right inside the U-shaped seat 3. By providing a limiting ring 305 at one end of the limiting column 304 and providing a spring 307 on the outer wall of the limiting column 304, the limiting ring 305 can limit the annular clamping plate 306 to prevent the annular clamping plate 306 from detaching from the U-shaped seat. 3 occurs, and at the same time, the elastic reaction force of the spring 307 can realize the elastic clamping effect of the annular clamping plate 306. The high-voltage line is sequentially entered into the high-voltage charging pile 1 through the wiring hole 103 on the wiring board 102, and then the annular clamping plate 306 is correspondingly set in the mounting hole 303 on the U-shaped seat 3 by the limiting column 304 in a sliding manner. When the high-voltage line and the charging module 101 are connected, the annular clamping plate 306 is first matched with the spring 307 to perform basic elastic clamping on the high-voltage line. After the high-voltage line and the charging module 101 are connected, the screw 309 is rotated to tighten the annular clamping plate 306, so that the outer wall of the high-voltage line can be elastically clamped and fixed, and the high-voltage line can be prevented from falling off or loosening due to shaking after the high-voltage line and the charging module 101 are connected. The short circuit or poor contact caused by the line is effectively prevented, and the durability and operation stability of the charging module are effectively improved.

[0025] Although the present invention has been described above with reference to the embodiments, various modifications may be made thereto and parts thereof may be replaced with equivalents without departing from the scope of the present invention. In particular, as long as there is no structural conflict, the various features in the embodiments disclosed in the present invention may be used in combination with each other in any manner, and the fact that these combinations are not exhaustively described in this specification is only for the sake of omitting space and saving resources. Therefore, the present invention is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A protection device for charging module short circuit, comprising a high-voltage charging pile (1), wherein a charging module (101) is installed above the interior of the high-voltage charging pile (1), characterized in that: A mounting frame (2) is installed at the lower part of the high-voltage charging pile (1); A connecting plate (201) is installed on the front end surface of the mounting frame (2), and a U-shaped seat (3) is installed on the outer wall of the connecting plate (201). A sliding groove (301) is provided on the rear end surface of the U-shaped seat (3), and the inner wall of the sliding groove (301) is slidably connected to the outer wall of the connecting plate (201). A positioning hole B (302) is provided at the center of the upper surface of the U-shaped seat (3), and mounting holes (303) are provided above and below the outer walls of both sides of the U-shaped seat (3), and the interior of the mounting holes (303) A limiting column (304) is installed, the outer wall of the limiting column (304) is slidably connected to the inner wall of the installation hole (303), a limiting ring (305) is installed at one end of the limiting column (304), and an annular clamping plate (306) is provided at the other end of the limiting column (304), a spring (307) is provided on the outer wall of the limiting column (304), and threaded holes (308) are provided at the center positions of the outer walls on both sides of the U-shaped seat (3), and the internal threads of the threaded holes (308) are connected to screw rods (309).

2. A protection device for charging module short circuit according to claim 1, characterized in that: A wiring board (102) is provided below the rear end of the high-voltage charging pile (1), and wiring holes (103) are provided on the surface of the wiring board (102).

3. A protection device for charging module short circuit according to claim 1, characterized in that: The outer walls on both sides of the connecting plate (201) are both provided with fixing seats (202), the fixing seats (202) are fixedly mounted on the front end surface of the mounting frame (2), and the upper surface of the connecting plate (201) is provided with positioning holes A (203).

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