Guide rail type small direct current charging pile
The rail-mounted mini DC charging pile solves the problems of long maintenance cycles, high maintenance difficulty, and heat dissipation difficulties of traditional charging piles through its pull-out rail design and fan heat dissipation structure, achieving convenient maintenance and efficient heat dissipation.
Patent Information
- Application Number
- CN202520566815.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-27
- Publication Date
- 2026-02-10
- Estimated Expiration
- 2035-03-27
AI Technical Summary
Traditional integrated charging pile designs result in long repair cycles, high maintenance difficulty, heat dissipation problems, and high costs, and fault location relies on professional personnel.
The charging module adopts a guide rail design, which can be pulled out from the module bracket by pulling the guide rail, making it easy to maintain and replace. A fan is installed on the door assembly to improve heat dissipation efficiency.
It simplifies the maintenance process, improves maintenance safety and efficiency, reduces maintenance costs, and enhances heat dissipation.
Smart Images

Figure CN223890836U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of electric vehicle charging piles, specifically to a rail-mounted small DC charging pile. Background Technology
[0002] Traditional charging piles employ an integrated design, requiring complete disassembly and return to the factory in case of malfunction. This results in long repair cycles and necessitates the disassembly of all components and electrical parts. Traditional charging piles also require bottom maintenance, which is difficult due to the bottom disassembly. Each module weighs 15kg, and reassembly requires lifting it upwards with one hand, making it challenging and unsafe for a single person. The high degree of internal component integration means fault location relies on specialized personnel, leading to high labor costs. Furthermore, the integrated design of traditional charging piles results in modules and components being tightly attached to the casing with no heat dissipation space, allowing heat to be conducted to the electrical parts. Poor sealing of the air inlet and outlet ducts and the lack of maintenance space for the fan further complicate maintenance. Utility Model Content
[0003] In view of this, the purpose of this utility model is to provide a rail-mounted small DC charging pile to solve the above-mentioned problems.
[0004] To solve the above-mentioned technical problems, the technical solution of this utility model is: a rail-mounted small DC charging pile, including a charging pile body, a pull-out rail, a modular frame, and a charging module; the charging pile body includes a main frame, a left door assembly, a right door assembly, a front door assembly, and a column assembly, the left door assembly, the right door assembly, and the front door assembly are respectively hinged to the left side, the right side, and the front side of the main frame; the charging module is fixedly installed inside the modular frame, the modular frame is fixedly installed on a movable module bracket on the pull-out rail, the pull-out rail is fixedly installed inside the bottom of the main frame, and faces the left door assembly; ventilation holes are provided on the top of the left door assembly and the right door assembly, and fans are fixedly installed on the ventilation holes.
[0005] Preferably, a column assembly is fixedly installed at the bottom of the main frame, an air inlet is provided at the bottom of the main frame, and a first ventilation opening is provided at the bottom of the module bracket corresponding to the air inlet; ventilation mesh plates are provided at the top and bottom of the charging module, and second ventilation openings corresponding to the ventilation mesh plates are provided at the top and bottom of the module frame.
[0006] Preferably, a dustproof mesh plate is fixedly installed on the air inlet.
[0007] Preferably, the module bracket is provided with a partition plate, one end of which extends to the top of the main frame.
[0008] Preferably, the main frame is provided with a limiting groove whose shape is adapted to the module frame.
[0009] Preferably, one end of the pull-out guide rail is hinged with a handle.
[0010] Preferably, the charging module is a 30kW DC charging module or a 40kW DC charging module.
[0011] Preferably, a number of wiring terminals are fixedly installed on the top of the charging module.
[0012] The main advantages of this invention are: by opening the left door assembly, the pull-out guide rail and charging module inside the main frame are exposed; then, by pulling the module bracket on the pull-out guide rail, the charging module is pulled out along with the module bracket and the module frame, which facilitates the maintenance and replacement of the charging module on the module bracket, improves maintenance efficiency, further ensures maintenance safety, and also improves heat dissipation efficiency by installing fans on the left and right door assemblies. Attached Figure Description
[0013] Figure 1 This is a perspective view of the present utility model;
[0014] Figure 2 This is a schematic diagram of the charging module extraction action of this utility model;
[0015] Figure 3 for Figure 2 Exploded view.
[0016] The attached diagram is labeled as follows: 1-Charging pile body, 11-Main frame, 111-Air inlet, 12-Left door assembly, 13-Right door assembly, 14-Front door assembly, 15-Column assembly, 16-Ventilation hole, 17-Fan, 18-Limiting slide, 2-Pull-out guide rail, 21-Handle, 3-Module frame, 31-Second ventilation opening, 4-Charging module, 41-Ventilation mesh plate, 42-Wiring terminal, 5-Module bracket, 51-First ventilation opening, 52-Divider plate. Detailed Implementation
[0017] The specific embodiments of this utility model will be further described in detail below with reference to the accompanying drawings, so that the technical solution of this utility model can be more easily understood and mastered.
[0018] In this embodiment, it should be understood that the terms "middle," "upper," "lower," "top," "right side," "left end," "above," "back," "center," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the present invention and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the present invention.
[0019] Furthermore, unless otherwise specified in this specific embodiment, the connection or fixing method between components can be achieved by bolt fixing, pin fixing, or pin connection commonly used in the prior art. Therefore, it will not be described in detail in this embodiment.
[0020] This utility model provides a rail-mounted small DC charging pile, such as... Figure 1-3 As shown, the system includes a charging pile body 1, a pull-out guide rail 2, a modular frame 3, and a charging module 4. The charging pile body 1 includes a main frame 11, a left door assembly 12, a right door assembly 13, a front door assembly 14, and a column assembly 15. The left door assembly 12, right door assembly 13, and front door assembly 14 are respectively hinged to the left, right, and front sides of the main frame 11. Locks are also provided between the left door assembly 12, right door assembly 13, and front door assembly 14 and the main frame 11. The charging module 4 is fixedly installed inside the modular frame 3. The modular frame 3 is fixedly installed on a movable module bracket 5 on the pull-out guide rail 2. The pull-out guide rail 2 is fixedly installed on the main frame. The bottom of the frame 11 is directly opposite the left door assembly 12. Ventilation holes 16 are provided on the top of the left door assembly 12 and the right door assembly 13, and fans 17 are fixedly installed on the ventilation holes 16. By opening the left door assembly 12, the pull-out guide rail 2 and the charging module 4 inside the main frame 11 are exposed. Then, by pulling out the module bracket 5 on the pull-out guide rail 2, the charging module 4 is pulled out along with the module bracket 5 and the module frame 3. This facilitates the maintenance and replacement of the charging module 4 on the module bracket 5, improves maintenance efficiency, and further ensures maintenance safety. In addition, the fans 17 on the left door assembly 12 and the right door assembly 13 facilitate the improvement of heat dissipation efficiency.
[0021] Preferably, a column assembly 15 is fixedly installed at the bottom of the main frame 11, and an air inlet 111 is provided at the bottom of the main frame 11. A first ventilation opening 51 is provided at the bottom of the module bracket 5 corresponding to the air inlet 111. Ventilation mesh plates 41 are provided at the top and bottom of the charging module 4, and second ventilation openings 31 corresponding to the ventilation mesh plates 41 are provided at the top and bottom of the module frame 3. Thus, external cold air is blown vertically upward through the air inlet 111 at the bottom of the main frame 11, and passes sequentially through the first ventilation opening 51 of the module bracket 5, the second ventilation opening 31 at the bottom of the module frame 3, the ventilation mesh plate 41 at the bottom of the charging module 4, the ventilation mesh plate 41 at the top of the charging module 4, and the second ventilation opening 31 at the top of the module frame 3. Then, it enters the inner top of the main frame 11 and is drawn outward by the fans 17 on both sides, thereby forming a vertical air duct, which is more conducive to the heat dissipation of the charging module 4.
[0022] Preferably, a dustproof mesh is fixedly installed on the air inlet 111 to prevent dust from entering the interior of the charging pile body 1.
[0023] Preferably, the module bracket 5 is provided with a partition plate 52, one end of which extends to the top of the main frame 11. The partition plate 52 divides the top of the main frame 11 into left and right air ducts, thereby facilitating the exhaust of hot air by the fans 17 on both sides.
[0024] Preferably, the main frame 11 is provided with a limiting groove 18 whose shape is adapted to the module frame 3, for limiting and supporting the middle part of the module frame 3.
[0025] Preferably, one end of the pull-out guide rail 2 is hinged with a handle 21, which makes it easier for users to hold and pull.
[0026] Preferably, the charging module 4 is a 30kW DC charging module 4 or a 40kW DC charging module 4.
[0027] Preferably, the top of the charging module 4 is fixedly equipped with several wiring terminals 42, so that when the charging module 4 is pulled out along with the extraction rail, the terminal wires can be pulled out together using the wiring terminals 42, which facilitates maintenance.
[0028] The main advantages of this invention are: by opening the left door assembly, the pull-out guide rail and charging module inside the main frame are exposed; then, by pulling the module bracket on the pull-out guide rail, the charging module is pulled out along with the module bracket and the module frame, which facilitates the maintenance and replacement of the charging module on the module bracket, improves maintenance efficiency, further ensures maintenance safety, and also improves heat dissipation efficiency by installing fans on the left and right door assemblies.
[0029] Of course, the above are just typical examples of this utility model. In addition, this utility model may have many other specific implementation methods. All technical solutions formed by equivalent substitution or equivalent transformation fall within the scope of protection claimed by this utility model.
Claims
1. A rail-mounted small DC charging pile, characterized in that, The system includes a charging pile body, a pull-out guide rail, a modular frame, and a charging module. The charging pile body includes a main frame, a left door assembly, a right door assembly, a front door assembly, and a column assembly. The left door assembly, right door assembly, and front door assembly are respectively hinged to the left, right, and front sides of the main frame. The charging module is fixedly installed inside the modular frame, and the modular frame is fixedly installed on a movable module bracket on the pull-out guide rail. The pull-out guide rail is fixedly installed at the bottom inside the main frame and faces the left door assembly. Ventilation holes are provided on the top of the left and right door assemblies, and fans are fixedly installed on the ventilation holes.
2. The guide rail type small DC charging pile as described in claim 1, characterized in that, A column assembly is fixedly installed at the bottom of the main frame, and an air inlet is provided at the bottom of the main frame. A first ventilation opening is provided at the bottom of the module bracket corresponding to the air inlet. Ventilation mesh panels are provided at the top and bottom of the charging module, and second ventilation openings corresponding to the ventilation mesh panels are provided at the top and bottom of the module frame.
3. A rail-mounted small DC charging pile as described in claim 2, characterized in that, A dustproof mesh plate is fixedly installed on the air inlet.
4. A rail-mounted small DC charging pile as described in claim 1, characterized in that, The module bracket is equipped with a partition plate, one end of which extends to the top of the main frame.
5. A rail-mounted small DC charging pile as described in claim 1, characterized in that, The main frame is provided with a limiting groove whose shape is adapted to the module frame.
6. A rail-mounted small DC charging pile as described in claim 1, characterized in that, A handle is hinged to one end of the pull-out guide rail.
7. A rail-mounted small DC charging pile as described in claim 1, characterized in that, The charging module is a 30kW DC charging module or a 40kW DC charging module.
8. A rail-mounted small DC charging pile as described in claim 1, characterized in that, Several wiring terminals are fixedly installed on the top of the charging module.