S-shaped air duct mute charging pile
By designing an S-shaped air duct and baffle structure in the charging pile, the problem of debris entering is solved, ensuring the charging module is clean, reducing noise, and extending its service life.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHENZHEN YINENGDIAN TECH CO LTD
- Filing Date
- 2025-07-29
- Publication Date
- 2026-05-12
AI Technical Summary
In existing charging stations, rainwater, dust, and other debris are easily sucked into the fan assembly, leading to poor heat dissipation of the charging module and affecting its service life.
The design employs an S-shaped air duct, including an air inlet chamber and a heat dissipation chamber. First and second baffles are used to block debris from entering, and the inclined design reduces resistance to ensure smooth airflow.
It effectively prevents debris from entering the charging station, keeps the charging module clean, extends its service life, and reduces noise transmission through the S-shaped air duct.
Smart Images

Figure CN224224921U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of charging piles, and in particular to an S-shaped air duct silent charging pile. Background Technology
[0002] A charging station is a commonly used outdoor facility for charging electric vehicles. It contains charging modules, which are centrally assembled within a cavity inside the charging station. With the rapid popularization of electric vehicles in China in recent years, the charging speed of charging stations has gradually become a key focus for both manufacturers and consumers.
[0003] To ensure charging speed, the charging modules inside charging stations often operate at high power, generating a significant amount of heat during operation. Existing technologies typically incorporate fan assemblies within the charging modules to force airflow and thus meet their heat dissipation requirements.
[0004] Regarding the aforementioned technologies, rainwater, dust, and other debris are easily sucked into the fan assembly of the charging module and accumulate inside the charging pile. Summary of the Invention
[0005] To prevent debris from being sucked into the charging station, this application provides an S-shaped air duct silent charging station.
[0006] The S-shaped duct silent charging pile provided in this application adopts the following technical solution:
[0007] An S-shaped air duct silent charging pile includes a charging pile shell and a charging module. The charging pile shell has an air inlet chamber and a heat dissipation chamber inside, and the air inlet chamber is connected to the heat dissipation chamber. The charging module is located in the heat dissipation chamber. The charging pile shell has an air inlet and an air outlet. The air inlet is connected to the air inlet chamber, and the air outlet is connected to the heat dissipation chamber. A first baffle is installed in the air inlet chamber and is located near the air inlet.
[0008] By adopting the above technical solution, rainwater, dust and other debris enter the air intake chamber through the air inlet and are blocked by the first baffle, making it difficult for rainwater, dust and other debris to pass through the air intake chamber and enter the heat dissipation chamber. This makes it difficult for debris to be sucked into the charging pile and makes the air-cooled module of the charging module less likely to fail due to the accumulation of debris.
[0009] Optionally, the end of the first baffle away from the air inlet is tilted away from the heat dissipation chamber.
[0010] By adopting the above technical solution, the inclined first baffle can effectively block rainwater, dust, etc., and also reduce the impact of the first baffle on airflow obstruction.
[0011] Optionally, the heat dissipation chamber is located at the top of the air inlet chamber, and the end of the first baffle away from the air inlet is inclined from top to bottom along the airflow direction.
[0012] By adopting the above technical solution, the air inlet with a lower height makes it less likely for rainwater to be blown into the air inlet at an angle by natural wind.
[0013] Optionally, a second baffle is installed in the air inlet chamber, and the second baffle is located between the first baffle and the heat dissipation chamber.
[0014] By adopting the above technical solution, the debris entering the air intake chamber is further blocked by the second baffle, making it difficult for the debris to be sucked into the charging module's own fan assembly, thereby ensuring the service life of the charging module.
[0015] Optionally, the end of the second baffle near the air inlet is tilted away from the heat dissipation chamber.
[0016] By adopting the above technical solution, the inclined second baffle can effectively block rainwater, dust, and other pollutants, while also reducing the impact of the first baffle on airflow obstruction.
[0017] Optionally, the heat dissipation chamber is located at the top of the air inlet chamber, and the second baffle is inclined from top to bottom in the opposite direction of the airflow direction at one end near the air inlet.
[0018] By adopting the above technical solution, the debris entering the air intake chamber is further blocked by the second baffle, making it less likely for the debris to be sucked into the charging module's own fan assembly.
[0019] Optionally, the second baffle is slidably fitted into the charging pile housing.
[0020] By adopting the above technical solution, it is easy to adjust the installation position of the second baffle, thereby making it easy to adjust the width of the channel formed between the second baffle and the first baffle according to the power of the fan assembly of the charging module, thus ensuring that it can effectively block debris and avoid generating resistance to airflow at the same time.
[0021] Optionally, the second baffle is provided with a baffle groove, and the second baffle is slidably fitted to the charging pile housing by bolts passing through the baffle groove.
[0022] By adopting the above technical solution, the installation and adjustment structure is simple, which makes it easier to reduce the production cost of charging piles.
[0023] In summary, this application includes at least one of the following beneficial technical effects:
[0024] 1. After rainwater, dust and other debris enter the air intake chamber through the air inlet, they are blocked by the first baffle, making it difficult for rainwater, dust and other debris to pass through the air intake chamber and enter the heat dissipation chamber. This makes it difficult for debris to be sucked into the charging pile and makes the air-cooling module of the charging module less likely to fail due to the accumulation of debris.
[0025] 2. Debris entering the air intake chamber is further blocked by the second baffle, making it less likely for debris to be sucked into the charging module's own fan assembly, thereby ensuring the lifespan of the charging module. Attached Figure Description
[0026] Figure 1 This is a first overall schematic diagram of a charging pile according to an embodiment of this application.
[0027] Figure 2 This is a second overall schematic diagram of the charging pile in an embodiment of this application.
[0028] Figure 3 This is a schematic diagram of an "S"-shaped air duct in an embodiment of this application.
[0029] Figure 4 This is a first installation diagram of the first baffle and the second baffle in an embodiment of this application.
[0030] Figure 5 This is a second installation diagram of the first and second baffles in an embodiment of this application.
[0031] Figure 6 This is an overall schematic diagram of the first baffle in the embodiment of this application.
[0032] Figure 7 This is an overall schematic diagram of the second baffle in an embodiment of this application.
[0033] Explanation of reference numerals in the attached drawings: 1. Charging pile casing; 101. Air inlet chamber; 102. Heat dissipation chamber; 103. Air inlet; 104. Air outlet; 11. Air outlet grille; 2. Charging module; 21. Heat dissipation perforated plate; 3. First baffle; 4. Second baffle; 401. Baffle groove. Detailed Implementation
[0034] The following is in conjunction with the appendix Figure 1-7 This application will be described in further detail.
[0035] This application discloses an S-shaped air duct silent charging pile. (Refer to...) Figure 1 , Figure 2 as well as Figure 3The S-shaped airflow silent charging pile includes a charging pile housing 1 and a charging module 2. The charging pile housing 1 has an air inlet chamber 101 and a heat dissipation chamber 102 inside. The heat dissipation chamber 102 is located at the top of the air inlet chamber 101, and the air inlet chamber 101 is connected to the heat dissipation chamber 102, forming an "S"-shaped airflow duct. The charging module 2 is located inside the heat dissipation chamber 102 and is fixedly installed on the inner wall of the heat dissipation chamber 102. Figure 4 The charging module 2 has a fan assembly (not shown in the figure) for heat dissipation, and the charging module 2 also has a heat dissipation plate 21 corresponding to the fan assembly.
[0036] Reference Figure 3 The charging pile housing 1 has two air inlets 103 and two air outlets 104. The two air inlets 103 are arranged in an "L" shape and are both located at the bottom of the air outlets 104. The air inlets 103 are connected to the air intake chamber 101, and the air outlets 104 are connected to the heat dissipation chamber 102. Specifically, in this embodiment, the air inlets 103 are formed by creating several mesh holes through the charging pile housing 1 to reduce the cost of the air inlets 103. Additionally, the air outlets 104 are fixedly equipped with an air outlet grille 11. The blades of the air outlet grille 11 are angled downwards towards the direction away from the heat dissipation chamber 102 to prevent rainwater from being blown into the heat dissipation chamber 102 by natural wind.
[0037] Reference Figure 4 , Figure 5 as well as Figure 6 A first baffle 3 is bolted and fixedly installed inside the air inlet chamber 101. The first baffle 3 is L-shaped and is located near the air inlet 103. The end of the first baffle 3 away from the air inlet 103 is inclined away from the heat dissipation chamber 102. Specifically, in this embodiment, the end of the first baffle 3 away from the air inlet 103 is inclined from top to bottom along the airflow direction to block debris from entering the air inlet chamber 101.
[0038] Reference Figure 3 It should be noted that, in this application, the end of the first baffle 3 furthest from the air inlet 103 refers to the end of the first baffle 3 that has the largest distance from the air inlet 103 along the airflow path. Specifically, in this embodiment, the airflow path is arranged in an "S" shape so that the noise generated by the fan assembly of the charging module 2 during operation is not easily transmitted to the outside of the charging pile.
[0039] Reference Figure 3 and Figure 4A second baffle 4 is slidably fitted inside the air inlet chamber 101. The second baffle 4 is located between the first baffle 3 and the heat dissipation chamber 102, and the end of the second baffle 4 near the air inlet 103 is inclined away from the heat dissipation chamber 102. Figure 7 Specifically, in this embodiment, the second baffle 4 is slidably fitted to the charging pile housing 1 by means of a baffle groove 401 that passes through it and a bolt (not shown in the figure) that passes through the baffle groove 401. Thus, by loosening the bolt, the second baffle 4 can slide through the baffle groove 401. Furthermore, the end of the second baffle 4 near the air inlet 103 is inclined from top to bottom in the opposite direction of the airflow direction, so that the debris in the air inlet chamber 101 is further blocked by the second baffle 4, making it less likely for the debris to be sucked into the fan assembly of the charging module 2 itself.
[0040] Reference Figure 3 It should be noted that, in this application, the end of the second baffle 4 near the air inlet 103 refers to the end of the second baffle 4 that is closer to the air inlet 103 along the movement path of the airflow.
[0041] Reference Figure 3 By sliding and adjusting the position of the second baffle 4, the distance between the first baffle 3 and the second baffle 4 can be adjusted, which makes it easier to determine the appropriate size of the distance between the first baffle 3 and the second baffle 4 according to the power of the fan assembly of the charging module 2, so that the second baffle 4 can not obstruct the airflow and can effectively block the debris.
[0042] The implementation principle of the S-shaped air duct silent charging pile in this application embodiment is as follows: Rainwater, dust, and other debris, under the action of the fan assembly of the charging module 2, enter the air intake chamber 101 through the mesh at the location of the air inlet 103. They are then blocked by the first baffle 3 and the second baffle 4, preventing rainwater, dust, and other debris from easily passing through the "S"-shaped air duct from the air intake chamber 101 into the heat dissipation chamber 102. This prevents debris from being sucked into the charging pile, thus ensuring the cleanliness of the charging pile's interior. Furthermore, the "S"-shaped air duct design prevents noise generated by the fan assembly of the charging module 2, located deep within the "S"-shaped air duct, from easily propagating to the outside of the charging pile, thus also achieving a silent effect.
[0043] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.
Claims
1. An S-shaped air duct silent charging pile, characterized in that: The device includes a charging pile housing (1) and a charging module (2). The charging pile housing (1) has an air inlet chamber (101) and a heat dissipation chamber (102) inside. The air inlet chamber (101) is connected to the heat dissipation chamber (102). The charging module (2) is located in the heat dissipation chamber (102). The charging pile housing (1) has an air inlet (103) and an air outlet (104). The air inlet (103) is connected to the air inlet chamber (101), and the air outlet (104) is connected to the heat dissipation chamber (102). A first baffle (3) is installed in the air inlet chamber (101) and is located near the air inlet (103).
2. The S-shaped duct silent charging pile according to claim 1, characterized in that: The first baffle (3) is inclined at the end away from the air inlet (103) towards the direction away from the heat dissipation chamber (102).
3. The S-shaped duct silent charging pile according to claim 2, characterized in that: The heat dissipation chamber (102) is located at the top of the air inlet chamber (101), and the end of the first baffle (3) away from the air inlet (103) is inclined from top to bottom along the airflow direction.
4. The S-shaped duct silent charging pile according to claim 1, characterized in that: A second baffle (4) is installed in the air inlet chamber (101), and the second baffle (4) is located between the first baffle (3) and the heat dissipation chamber (102).
5. The S-shaped duct silent charging pile according to claim 4, characterized in that: The second baffle (4) is inclined at the end near the air inlet (103) away from the heat dissipation chamber (102).
6. The S-shaped duct silent charging pile according to claim 5, characterized in that: The heat dissipation chamber (102) is located at the top of the air inlet chamber (101), and the second baffle (4) is inclined from top to bottom in the opposite direction of the airflow direction at one end near the air inlet (103).
7. The S-shaped duct silent charging pile according to claim 4, characterized in that: The second baffle (4) slides into the charging pile housing (1).
8. The S-shaped duct silent charging pile according to claim 7, characterized in that: The second baffle (4) has a through-hole baffle groove (401), and the second baffle (4) is slidably fitted to the charging pile shell (1) by bolts passing through the baffle groove (401).