A charging pile cable winding and unwinding device

By introducing a cooling fan and filter screen into the cable winding and unwinding device for charging piles, combined with guide rollers and cleaning cotton, the problems of poor heat dissipation and inconvenient cleaning are solved, achieving efficient heat dissipation and cleaning, extending the service life of cables, and improving the reliability of equipment.

CN224335482UActive Publication Date: 2026-06-09HENAN YAZUO TECHNOLOGY IND CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
HENAN YAZUO TECHNOLOGY IND CO LTD
Filing Date
2025-09-12
Publication Date
2026-06-09

AI Technical Summary

Technical Problem

Existing cable winding and unwinding devices for charging piles have poor heat dissipation and are difficult to clean, leading to increased cable temperature and impurities entering the equipment, affecting equipment lifespan and reliability.

Method used

A cable winding and unwinding device including a heat dissipation component, a filter component, and a cleaning component was designed. The device uses a heat dissipation fan and a filter screen for heat dissipation, and guides and cleans the cable through guide rollers and cleaning cotton to prevent impurities from entering.

Benefits of technology

It improves the device's heat dissipation and cleaning capabilities, prevents equipment damage, extends the cable's service life, and enhances the device's waterproofness and practicality.

✦ Generated by Eureka AI based on patent content.

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Abstract

This utility model discloses a cable retraction device for charging piles, relating to the technical field of charging pile equipment. The device includes a charging pile body, with two retraction device bodies installed on both sides of the charging pile body. A housing is installed on the outer side of each retraction device body, and an opening slot is formed on one side of the housing. A heat dissipation assembly is installed on the left side of the housing, comprising a support frame installed on the left side of the housing. A cooling fan is installed inside the support frame, and a rain shelter is installed on the top left side of the support frame. A filter assembly is installed on the left side inside the support frame. This utility model utilizes the combined use of the heat dissipation assembly and the filter assembly. The cooling fan draws outside air through the filter screen and then delivers it into the housing, facilitating heat dissipation of the cable. The hot air is then expelled through the opening slot and heat dissipation groove, thereby improving the device's heat dissipation effect.
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Description

Technical Field

[0001] This utility model relates to the technical field of charging pile equipment, specifically a cable winding and unwinding device for charging piles. Background Technology

[0002] Charging cables for charging piles connect the charging pile to the charging gun, which in turn connects to new energy vehicles to supply them with electricity. The charging pile is a fixed device, and the charging cable is externally connected to one side of the charging pile. In order to facilitate charging of new energy vehicles that are a certain distance away from the charging pile, the charging cable is designed to be relatively long. To store the charging cable, a cable retraction device needs to be installed on one side of the charging pile. The use of the retraction device can prevent the cable from being dragged on the ground, prevent the cable sheath from being worn and damaged by the ground, increase the cable's service life, and reduce the burden on users when dragging the cable.

[0003] Existing patent CN222933750U proposes a charging cable retraction device for charging piles, including a box. The side wall of the box is symmetrically provided with mounting grooves and a power-conducting anti-twist component installed in the center of the mounting groove. The anti-twist component is inserted into the mounting groove and is used to prevent the wire from being twisted off. The anti-twist component includes two fixing structures, which can protect the connection port between the cable body and the box from twisting off during the cable body retraction process.

[0004] However, the cable winding device still has some defects. As the cable is wound inside the winding device, the cable temperature rises during the charging process. The heat dissipation effect of the existing winding device is not good, which can easily lead to damage to the device. Furthermore, it is not convenient to clean the cable surface during the cable winding process, which can easily cause garbage or impurities to enter the winding device and cause the device to jam.

[0005] Based on this, a cable winding and unwinding device for charging piles is now provided, which can eliminate the drawbacks of existing devices. Utility Model Content

[0006] The purpose of this utility model is to provide a cable winding and unwinding device for charging piles, so as to solve the problems of poor heat dissipation and difficulty in cleaning that lead to impurities entering the equipment in the background art.

[0007] To achieve the above objectives, this utility model provides the following technical solution:

[0008] A cable winding and unwinding device for a charging pile includes a charging pile body, two winding and unwinding device bodies are installed on both sides of the charging pile body, and a shell is installed on the outer side of the winding and unwinding device body, with an opening slot on one side of the shell.

[0009] A heat dissipation assembly is installed on the left side of the outer casing. The heat dissipation assembly includes a support frame, which is installed on the left side of the outer casing. A heat dissipation fan is installed inside the support frame, and a rain shelter is installed on the top left side of the support frame.

[0010] A filter assembly is installed inside the left side of the support frame;

[0011] A guide assembly is installed on one side of the opening slot.

[0012] Based on the above technical solutions, this utility model also provides the following optional technical solutions:

[0013] In one alternative: a cable body is installed inside the main body of the retraction device, and a charging head is installed on one side of the cable body.

[0014] In one alternative: a heat dissipation groove is provided on the top of the outer casing, a heat dissipation mesh is installed inside the heat dissipation groove, and a rain cover is installed on the top of the outer casing.

[0015] In one alternative: the filter assembly includes a support rod mounted inside the left side of a support frame, a connecting ring mounted in the middle of the support rod, a connecting bolt threaded inside the left side of the connecting ring, and a filter screen threaded inside the left side of the connecting bolt.

[0016] In one alternative: the guide assembly includes a mounting frame mounted on one side of the opening slot, and two guide rollers are rotatably connected to the inner right side of the mounting frame.

[0017] In one alternative: a cleaning component is mounted on the right side of the mounting frame.

[0018] In one alternative: the cleaning component includes a fixing frame mounted on the right side of a mounting frame, a first cleaning cotton is installed inside the bottom of the mounting frame, an electric push rod is installed inside the top of the mounting frame, and a second cleaning cotton is installed at the output end of the electric push rod.

[0019] In one alternative: both the first and second cleaning cotton are made of polyester fiber synthetic material.

[0020] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0021] 1. This utility model uses a combination of heat dissipation components and filter components. The operation of the heat dissipation fan drives the outside air to pass through the filter screen and then into the interior of the housing to facilitate heat dissipation of the cable. The hot air is discharged through the opening slots and heat dissipation slots, thereby improving the heat dissipation effect of the device. The filter components filter the dust in the incoming air, and the rain shelter and rain cover protect against rainwater, preventing rainwater from entering the interior of the housing.

[0022] 2. This utility model uses the guide component and the cleaning component together to facilitate the guiding and cleaning of the cable. The cable is wrapped with the first cleaning cotton and the second cleaning cotton, so that impurities and garbage on the surface of the cable are cleaned when the cable is wound up. This avoids the problem of impurities and garbage entering the inside of the shell and causing the main body of the winding device to jam, thus improving the practicality of the device. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0024] Figure 2 This is a schematic diagram of the main body of the charging pile of this utility model.

[0025] Figure 3 This is a schematic diagram of the heat dissipation component and the filter component of this utility model.

[0026] Figure 4 This is a schematic diagram of the guide component and cleaning component of this utility model.

[0027] Figure reference numerals: 1. Charging pile body; 11. Retractable device body; 12. Cable body; 13. Charging head; 14. Outer shell; 15. Opening slot; 16. Heat dissipation slot; 17. Heat dissipation mesh; 18. Rain cover; 2. Support frame; 21. Cooling fan; 22. Support rod; 23. Connecting ring; 24. Connecting bolt; 25. Filter screen; 26. Rain cover; 3. Mounting frame; 31. Guide roller; 32. Fixing frame; 33. First cleaning cotton; 34. Electric push rod; 35. Second cleaning cotton. Detailed Implementation

[0028] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments.

[0029] In one embodiment, such as Figures 1-4 As shown, a cable winding and unwinding device for a charging pile includes a charging pile body 1, two winding and unwinding device bodies 11 are installed on both sides of the charging pile body 1, a housing 14 is installed on the outer side of the winding and unwinding device body 11, and an opening slot 15 is opened on one side of the housing 14.

[0030] A heat dissipation assembly is installed on the left side of the outer casing 14. The heat dissipation assembly includes a support frame 2, which is installed on the left side of the outer casing 14. A heat dissipation fan 21 is installed inside the support frame 2, and a rain shelter 26 is installed on the top left side of the support frame 2.

[0031] A filter assembly is installed inside the left side of the support frame 2;

[0032] A guide assembly is installed on one side of the opening slot 15.

[0033] In this embodiment, the outer shell 14 covers the outer side of the main body 11 of the winding device. The main body 11 of the winding device automatically retracts the cable body 12 through the automatic rebound of the internal coil spring. The support frame 2 supports the cooling fan 21. The operation of the cooling fan 21 drives the outside air to be filtered by the filter component and sent into the interior of the outer shell 14 for heat dissipation. The guide component guides the cable body 12, which improves the heat dissipation effect and convenience of the device.

[0034] In one embodiment, such as Figure 1 and Figure 3 As shown, a cable body 12 is installed inside the main body 11 of the retracting device, and a charging head 13 is installed on one side of the cable body 12.

[0035] In one embodiment, such as Figure 1 and Figure 4 As shown, a heat dissipation groove 16 is provided on the top of the outer shell 14, and a heat dissipation mesh 17 is installed inside the heat dissipation groove 16. A rain cover 18 is installed on the top of the outer shell 14 to protect the heat dissipation mesh 17 from rain and prevent rainwater from entering the interior of the outer shell 14. The heat dissipation mesh 17 is used to expel hot air.

[0036] In one embodiment, such as Figure 1 , Figure 2 and Figure 4 As shown, the filter assembly includes a support rod 22, which is installed inside the support frame 2 on the left side. A connecting ring 23 is installed in the middle of the support rod 22. A connecting bolt 24 is threadedly connected to the inside left side of the connecting ring 23. A filter screen 25 is threadedly connected to the inside left side of the connecting bolt 24. The filter screen 25 and the connecting ring 23 are connected by the connecting bolt 24 through the threaded connection, thereby installing the filter screen 25 and filtering dust and impurities through the filter screen 25.

[0037] In one embodiment, such as Figure 1 and Figure 4As shown, the guide assembly includes a mounting frame 3, which is installed on one side of the opening slot 15. Two guide rollers 31 are rotatably connected to the inside right side of the mounting frame 3, and the cable body 12 is guided by the two guide rollers 31 inside the mounting frame 3.

[0038] In one embodiment, such as Figure 1 and Figure 4 As shown, a cleaning component is installed on the right side of the mounting frame 3 to clean the surface of the cable body 12.

[0039] In one embodiment, such as Figure 1 and Figure 4 As shown, the cleaning component includes a fixing frame 32, which is installed on the right side of the mounting frame 3. A first cleaning cotton 33 is installed at the bottom inside the mounting frame 3, and an electric push rod 34 is installed at the top inside the mounting frame 3. A second cleaning cotton 35 is installed at the output end of the electric push rod 34. The operation of the electric push rod 34 pushes the second cleaning cotton 35 to move downward, which, together with the first cleaning cotton 33, wraps the outside of the cable body 12, thereby cleaning the surface of the cable body 12 when the cable body 12 is wound up.

[0040] In one embodiment, such as Figure 1 and Figure 4 As shown, both the first cleaning cotton 33 and the second cleaning cotton 35 are made of polyester fiber synthetic material.

[0041] The above embodiment discloses a cable winding and unwinding device for charging piles. The cable body 12 is automatically wound up by the return of a coil spring inside the main body 11 of the winding and unwinding device. When the charging pile body 1 is in use, the operation of the cooling fan 21 inside the support frame 2 draws outside air through the filter screen 25 and into the outer casing 14, thereby dissipating heat from the cable body 12. The hot air is then expelled through the cooling mesh 17 inside the cooling slot 16 at the top of the outer casing 14, thus improving the heat dissipation effect of the device and preventing damage to the equipment due to overheating of the cable body 12 during use. Rain shields 18 and 26 further protect the device from rain, preventing rainwater from entering the interior of the outer casing 14 through the cooling mesh 17. Rainwater is prevented from entering the interior of the housing 14 through the filter screen 25, improving the waterproof effect of the device. The filter screen 25 can be disassembled and cleaned by rotating the connecting bolt 24, improving the convenience of the device. The cable body 12 is guided by two guide rollers 31 inside the mounting frame 3, so as to automatically rewind the cable body 12. The operation of the electric push rod 34 at the top inside the fixed frame 32 pushes the first cleaning cotton 33 downward, which, together with the second cleaning cotton 35, wraps the outside of the cable body 12. This allows the surface dust and impurities of the cable body 12 to be cleaned when it is rewound, preventing dust and impurities from entering the interior of the housing 14 and causing the main body 11 of the winding device to get stuck. This improves the practicality and cleaning effect of the device.

[0042] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A cable retraction device for a charging pile, comprising a charging pile body (1), characterized in that, The charging pile body (1) has two retractable device bodies (11) installed on both sides. The retractable device body (11) has a shell (14) installed on the outside. An opening slot (15) is provided on one side of the shell (14). A heat dissipation assembly is installed on the left side of the outer shell (14). The heat dissipation assembly includes a support frame (2). The support frame (2) is installed on the left side of the outer shell (14). A heat dissipation fan (21) is installed inside the support frame (2). A rain shelter (26) is installed on the top left side of the support frame (2). A filter assembly is installed on the left side inside the support frame (2); A guide assembly is installed on one side of the opening slot (15).

2. The cable retraction device for a charging pile according to claim 1, characterized in that, The cable body (12) is installed inside the main body (11) of the retracting device, and a charging head (13) is installed on one side of the cable body (12).

3. The cable retraction device for a charging pile according to claim 2, characterized in that, The top of the outer shell (14) is provided with a heat dissipation groove (16), and a heat dissipation mesh (17) is installed inside the heat dissipation groove (16). A rain cover (18) is installed on the top of the outer shell (14).

4. The cable retraction device for a charging pile according to claim 1, characterized in that, The filter assembly includes a support rod (22), which is installed on the inside left side of the support frame (2). A connecting ring (23) is installed in the middle of the support rod (22). A connecting bolt (24) is threaded on the inside left side of the connecting ring (23). A filter screen (25) is threaded on the inside left side of the connecting bolt (24).

5. A cable winding and unwinding device for a charging pile according to claim 1, characterized in that, The guide assembly includes a mounting frame (3) which is mounted on one side of the opening slot (15), and two guide rollers (31) are rotatably connected to the inside right side of the mounting frame (3).

6. A cable winding and unwinding device for a charging pile according to claim 5, characterized in that, A cleaning component is installed on the right side of the mounting frame (3).

7. A cable retraction device for a charging pile according to claim 6, characterized in that, The cleaning component includes a fixing frame (32) mounted on the right side of the mounting frame (3), a first cleaning cotton (33) mounted on the bottom inside the mounting frame (3), an electric push rod (34) mounted on the top inside the mounting frame (3), and a second cleaning cotton (35) mounted on the output end of the electric push rod (34).

8. A cable winding and unwinding device for a charging pile according to claim 7, characterized in that, Both the first cleaning cotton (33) and the second cleaning cotton (35) are made of polyester fiber synthetic material.