A direct current charging device employing a vertical air duct
By adopting a vertical air duct design and air filtration system in DC charging equipment, the problems of low heat dissipation efficiency, large footprint, and noise pollution are solved, achieving efficient heat dissipation, space saving, and noise reduction.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- DALIAN LUOBINSEN POWER EQUIP CO LTD
- Filing Date
- 2025-08-01
- Publication Date
- 2026-07-14
AI Technical Summary
Existing DC charging stations suffer from low heat dissipation efficiency, large footprint, and noise pollution.
The system adopts a vertical air duct design, initiating cool air into the equipment through the air inlet using a cooling fan. The airflow is guided by the lower baffle, upper baffle, guide plate, and partition plate, while hot air is exhausted through the air outlet. Air filter cotton and protective mesh are used to prevent impurities from entering, and the fan is placed vertically to reduce resistance.
It improves heat dissipation efficiency, reduces equipment size and noise pollution, enhances equipment stability and space utilization, protects electronic components, and improves user experience.
Smart Images

Figure CN224490715U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of electric vehicle charging equipment technology, specifically to a DC charging device using a vertical air duct. Background Technology
[0002] Electric vehicles are vehicles powered by onboard electricity, using electric motors to drive their wheels. They comply with road traffic and safety regulations. With the increasing popularity of electric vehicles, the market demand for DC charging stations, as fast charging equipment, is growing daily. Electric vehicle DC charging equipment (commonly known as DC charging piles) is a non-vehicle-mounted dedicated device installed at charging stations. Its core function is to convert AC power from the power grid into controllable high-voltage DC power, directly and quickly replenishing the electric vehicle's battery.
[0003] The existing technology has the following shortcomings:
[0004] 1. Low heat dissipation efficiency
[0005] Traditional DC charging piles often use a horizontal air duct design with the cooling fan placed horizontally. This results in high air duct resistance, low heat dissipation efficiency, and a tendency for internal components to overheat, affecting the stability and lifespan of the charging pile.
[0006] 2. Large footprint
[0007] The horizontal air duct design requires a large air intake space, resulting in a large charging pile size and a large footprint, which is not conducive to the effective use of space.
[0008] 3. Noise pollution
[0009] Traditional DC charging piles have loud cooling fans that can cause noise pollution and negatively impact user experience. Utility Model Content
[0010] The purpose of this invention is to provide a DC charging device with a vertical air duct. By using a cooling fan, cool air can enter the device body through the first and second air inlets. The airflow can be guided and limited by the lower partition, upper partition, dividing plate, guide plate, and supporting partition, so as to fully dissipate heat from the charging module and allow hot air to be discharged through the first and second air outlets, thereby solving the above-mentioned shortcomings in the technology.
[0011] To achieve the above objectives, this utility model provides the following technical solution: a DC charging device employing a vertical air duct, comprising a device body, and further comprising:
[0012] The heat dissipation mechanism, located inside the device body, is used to dissipate heat from the device body during operation.
[0013] The heat dissipation mechanism includes a first air inlet and a second air inlet. The first air inlet is located at the bottom of one side of the device body, and a first air outlet is located at the top of one side of the device body. The second air inlet is located at the bottom of the other side of the device body, and a second air outlet is located at the top of the other side of the device body. A lower partition and an upper partition are fixedly installed at the bottom and top of one side of the device body, respectively. A guide plate is fixedly installed at the top of the other side of the device body. A partition plate is fixedly installed at the top of the inner side of the device body, and a cooling fan is installed on the top of the partition plate.
[0014] Preferably, the equipment body includes a cabinet, a fixed base is fixedly installed at the bottom of the cabinet by bolts, a front door is fixedly installed on one side of the cabinet by bolts, and a canopy is fixedly installed on the top of the cabinet by bolts.
[0015] Preferably, a right-side door is fixedly installed on one outer wall of the cabinet, a left-side door is fixedly installed on the other outer wall of the cabinet, a DC unit mounting plate is fixedly installed on the top of the cabinet near the front door, and an AC unit mounting plate is fixedly installed on the bottom of the cabinet near the front door.
[0016] Preferably, the first air inlet and the first air outlet are respectively located on the bottom and top inner walls of the right door, and the second air inlet and the second air outlet are respectively located on the bottom and top inner walls of the left door.
[0017] Preferably, a module mounting plate is fixedly installed inside the cabinet on the side away from the DC unit mounting plate, and a charging module is fixedly installed on the inner side of the module mounting plate, with the charging module located below the partition plate.
[0018] Preferably, the bottom of the cabinet interior near the left door is fixedly connected to the lower partition, and the top of the cabinet interior near the left door is fixedly connected to the upper partition.
[0019] Preferably, the top of the cabinet interior near the right door is fixedly connected to the baffle plate, the top of the cabinet interior is fixedly connected to the partition plate, and a support partition plate is fixedly installed on the top of the partition plate near the baffle plate.
[0020] Preferably, the lower partition is disposed above the second air inlet, the upper partition is disposed below the second air outlet, and the guide plate is disposed below the first air outlet.
[0021] The technical effects and advantages provided by this utility model in the above technical solution are as follows:
[0022] Cool air is drawn into the cabinet through the first and second air inlets by the cooling fan. The lower partition, guide plate, support partition, and divider plate facilitate airflow, allowing the cool air to dissipate heat from the charging module. Then, the hot air, after heat exchange, is exhausted through the first and second air outlets via the upper partition, divider plate, and support partition. The vertical airflow design allows the cooling fan to be placed vertically, resulting in low airflow resistance, high heat dissipation efficiency, and effectively reducing the internal temperature of the charging pile. This improves the stability and lifespan of the charging pile. Furthermore, the vertical airflow design requires less intake space, effectively reducing the size of the charging pile, minimizing its footprint, and increasing space utilization. The vertical airflow design also effectively reduces the noise of the cooling fan, minimizing noise pollution and improving the user experience.
[0023] Air filters installed inside the first and second air inlets filter the air entering the cabinet. These filters are removable for easy cleaning and replacement. Protective nets are installed outside the first and second air outlets. This combination of air filters and nets effectively prevents dust and other impurities from entering the charging station, protecting electronic components and improving the charging station's reliability and stability. The cabinet and partitions are secured with bolts for a more robust installation. Heat insulation is applied or adhered between the air duct plate and the heat-generating parts of the charging module to improve heat transfer efficiency. Furthermore, noise from the charging module cannot be directly transmitted to the outside of the cabinet, reducing noise pollution. Attached Figure Description
[0024] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings.
[0025] Figure 1 This is a schematic diagram of the overall structure of this utility model.
[0026] Figure 2 This is an exploded view of the present invention.
[0027] Figure 3 This is a rear vertical sectional view of the present invention.
[0028] Figure 4 This is a front view of the present invention.
[0029] Figure 5 This is the left view of the present invention.
[0030] Figure 6This is the right view of the present invention.
[0031] Figure 7 This is a rear view of the present invention.
[0032] Figure 8 This is a schematic diagram of the air duct of this utility model.
[0033] Explanation of reference numerals in the attached figures:
[0034] Equipment body; 101. Cabinet; 102. Fixed base; 103. Front door; 104. Canopy; 105. DC unit mounting plate; 106. AC unit mounting plate; 107. Right side door; 108. Left side door; 109. Module mounting plate; 110. Charging module;
[0035] Heat dissipation mechanism; 201, first air inlet; 202, first air outlet; 203, second air inlet; 204, second air outlet; 205, cooling fan; 206, lower partition; 207, upper partition; 208, partition plate; 209, supporting partition; 210, air guide plate. Detailed Implementation
[0036] This utility model provides, for example Figure 1 The DC charging device shown includes a device body 1 and further includes:
[0037] The heat dissipation mechanism 2, located inside the device body 1, is used to dissipate heat from the device body 1. The heat dissipation mechanism 2 forms a vertical air duct, which allows air to flow fully within the device body 1, thereby improving the heat dissipation efficiency of the device body 1. At the same time, the vertical air duct design can save the floor space of the device body 1.
[0038] To facilitate heat dissipation of the internal working modules of the device body 1, such as Figure 1-6 and Figure 8 As shown, the heat dissipation mechanism 2 includes a first air inlet 201 and a second air inlet 203. The first air inlet 201 is located at the bottom of one side of the device body 1, and a first air outlet 202 is located at the top of one side of the device body 1. The second air inlet 203 is located at the bottom of the other side of the device body 1, and a second air outlet 204 is located at the top of the other side of the device body 1. A lower partition 206 and an upper partition 207 are fixedly installed at the bottom and top of one side of the device body 1, respectively. A guide plate 210 is fixedly installed at the top of the other side of the device body 1. A partition plate 208 is fixedly installed at the top of the inner side of the device body 1, and a cooling fan 205 is installed on the top of the partition plate 208.
[0039] The cooling fan 205 allows air to flow into the device body 1 through the first air inlet 201 and the second air inlet 203. Guided by the lower partition 206, upper partition 207, guide plate 210, and partition plate 208, the cool air circulates effectively within the device body 1, dissipating the heat generated by the internal modules. The hot air is then exhausted from the device body 1 through the first air outlet 202 and the second air outlet 204. This vertical airflow design ensures an orderly vertical airflow within the charging pile, improving efficiency and performance. The heat dissipation efficiency is improved, and precise heat dissipation is achieved. At the same time, air filter cotton is installed in both the first air inlet 201 and the second air inlet 203. The air filter cotton adopts a detachable design, which is convenient for regular cleaning and replacement. Protective nets are installed in both the first air outlet 202 and the second air outlet 204. The combination of air filter cotton at the air inlet and protective net at the air outlet effectively prevents dust and other impurities from entering the charging pile, protects electronic components, and improves the reliability and stability of the charging pile. At the same time, the vertical air duct design can better save the footprint of the equipment body 1 and improve space utilization.
[0040] To save equipment space and ensure its stable operation, such as Figure 1-7 As shown, the device body 1 includes a cabinet 101. A fixed base 102 is bolted to the bottom of the cabinet 101. A front door 103 is bolted to one side of the cabinet 101. A canopy 104 is bolted to the top of the cabinet 101. A right door 107 is bolted to one outer wall of the cabinet 101. A left door 108 is bolted to the other outer wall of the cabinet 101. A DC unit mounting plate 105 is bolted to the top of the cabinet 101 near the front door 103. An AC unit mounting plate 106 is bolted to the bottom of the cabinet 101 near the front door 103. A module mounting plate 109 is bolted to the inside of the cabinet 101 away from the DC unit mounting plate 105. A charging module 110 is bolted to the inside of the module mounting plate 109. Module 110 is located below partition plate 208. A heat insulation device is applied or pasted between the air duct plate and the heat-generating part of charging module 110 to improve heat transfer efficiency. Cabinet 101 is made of high-quality steel plate and processed by cutting, bending, welding and other processes. The surface of cabinet 101 is powder coated to improve its corrosion resistance and aesthetics. AC / DC charging module 110 is installed on AC / DC module mounting plate 109 inside cabinet 101. Power and signal lines are connected. The position of AC / DC charging module 110 and vertical air duct assembly must be accurately aligned to ensure that heat can be smoothly transferred to the air duct. Due to the unique vertical air duct design, the noise of AC / DC charging module 110 cannot be directly transmitted to the outside of cabinet 101, reducing noise pollution.
[0041] In order to ensure that the heat dissipation mechanism 2 can stably dissipate heat from the charging module 110, such as Figure 2-7 As shown, the first air inlet 201 and the first air outlet 202 are respectively located on the bottom and top inner walls of the right side door 107, and the second air inlet 203 and the second air outlet 204 are respectively located on the bottom and top inner walls of the left side door 108. The bottom of the cabinet body 101 near the left side door 108 is fixedly connected to the lower partition 206, the top of the cabinet body 101 near the left side door 108 is fixedly connected to the upper partition 207, the top of the cabinet body 101 near the right side door 107 is fixedly connected to the guide plate 210, and the top of the inner side of the cabinet body 101 is fixedly connected to the partition plate 208. A supporting partition 20 is fixedly installed on the top of the partition plate 208 near the guide plate 210. 9. The lower partition 206 is located above the second air inlet 203, the upper partition 207 is located below the second air outlet 204, and the guide plate 210 is located below the first air outlet 202. The various mounting plates, module mounting plates 109, and multiple air duct partitions inside the cabinet 101 are fixed in various positions inside the cabinet according to the design requirements, forming multiple independent vertical air ducts. The air duct plates are bolted to the cabinet 101 to ensure a firm connection. Heat insulation devices are applied or pasted between the air duct plates and the heat-generating parts of the charging module 110 to improve heat transfer efficiency, thereby enabling the heat dissipation mechanism 2 to fully dissipate heat from the charging module 110 and improve the heat dissipation effect of the equipment.
[0042] The specific implementation method is as follows: When installing and using the equipment body 1, high-quality steel plates are used as required, and the cabinet 101 is manufactured through processes such as cutting, bending, and welding. The surface of the cabinet is then powder-coated. Inside the cabinet 101, a DC unit mounting plate 105, an AC unit mounting plate 106, and a module mounting plate 109 are bolted together. The charging module 110 is installed inside the module mounting plate 109. Then, the lower partition 206 is installed at the bottom of the cabinet 101 near the left side door 108, and the upper partition 207 is installed at the top of the cabinet 101 near the left side door 108. Finally, the guide plate 210... Installed inside the cabinet 101 near the right side door 107, with a partition plate 208 installed on top of the module mounting plate 109, and a support partition plate 209 installed on top of the partition plate 208 near the guide plate 210. A first air inlet 201 and a first air outlet 202 are opened on the inner wall of the left side door 107, and a second air inlet 203 and a second air outlet 204 are opened on the inner wall of the right side door 108. Removable air filter cotton is installed at both air inlets, and a cooling fan 205 is installed on top of the partition plate 208, with its air outlet side corresponding to the position of the first air outlet 202 and the second air outlet 204.
[0043] After the charging equipment is assembled, the power is turned on and the motor is started, causing the cooling fan 205 to work. This allows outside air to enter the cabinet 101 through the first air inlet 201 and the second air inlet 203. Guided by the lower partition 206, the guide plate 210, and the supporting partition 209, the air passes through the inside of the charging module 110. This airflow dissipates the heat generated by the charging module 110. Then, guided by the upper partition 207 and the partition plate 208, and further guided by the cooling fan 205, the hot air is allowed to pass through... The air can be exhausted from inside the cabinet 101 through the first air outlet 202 and the second air outlet 204. The vertical air duct design allows the air to form an orderly vertical flow inside the charging pile, which can fully dissipate heat from the charging module 110, improve heat dissipation efficiency, and achieve precise heat dissipation. Compared with the liquid cooling system, the air cooling structure of this utility model is simpler, lower in cost, and easier to install and maintain, and has a high market competitiveness. This embodiment specifically solves the problems of low heat dissipation efficiency, large area occupation, and noise pollution of charging equipment in the prior art.
[0044] The foregoing description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.
Claims
1. A DC charging device employing a vertical air duct, comprising a device body (1), characterized in that, Also includes: The heat dissipation mechanism (2) is located inside the device body (1) and is used to dissipate heat from the operation of the device body (1). The heat dissipation mechanism (2) includes a first air inlet (201) and a second air inlet (203). The first air inlet (201) is located at the bottom of one side of the device body (1). A first air outlet (202) is located at the top of one side of the device body (1). The second air inlet (203) is located at the bottom of the other side of the device body (1). A second air outlet (204) is located at the top of the other side of the device body (1). A lower partition (206) and an upper partition (207) are fixedly installed at the bottom and top of one side of the device body (1), respectively. A guide plate (210) is fixedly installed at the top of the other side of the device body (1). A partition plate (208) is fixedly installed at the top of the inner side of the device body (1). A cooling fan (205) is installed on the top of the partition plate (208).
2. The DC charging device employing a vertical air duct according to claim 1, characterized in that: The equipment body (1) includes a cabinet (101), a fixed base (102) is fixedly installed at the bottom of the cabinet (101) by bolts, a front door (103) is fixedly installed on one side of the cabinet (101) by bolts, and a canopy (104) is fixedly installed on the top of the cabinet (101) by bolts.
3. The DC charging device employing a vertical air duct according to claim 2, characterized in that: A right-side door (107) is fixedly installed on one side of the cabinet (101), and a left-side door (108) is fixedly installed on the other side of the cabinet (101). A DC unit mounting plate (105) is fixedly installed on the top of the cabinet (101) near the front door (103), and an AC unit mounting plate (106) is fixedly installed on the bottom of the cabinet (101) near the front door (103).
4. The DC charging device employing a vertical air duct according to claim 3, characterized in that: The first air inlet (201) and the first air outlet (202) are respectively opened on the bottom and top inner walls of the right door (107), and the second air inlet (203) and the second air outlet (204) are respectively opened on the bottom and top inner walls of the left door (108).
5. The DC charging device employing a vertical air duct according to claim 3, characterized in that: A module mounting plate (109) is fixedly installed on the side of the cabinet (101) away from the DC unit mounting plate (105). A charging module (110) is fixedly installed on the inner side of the module mounting plate (109). The charging module (110) is located below the partition plate (208).
6. The DC charging device employing a vertical air duct according to claim 3, characterized in that: The bottom of the cabinet (101) near the left door (108) is fixedly connected to the lower partition (206), and the top of the cabinet (101) near the left door (108) is fixedly connected to the upper partition (207).
7. The DC charging device employing a vertical air duct according to claim 3, characterized in that: The top of the cabinet (101) inside, near the right door (107), is fixedly connected to the guide plate (210). The top of the cabinet (101) inside is fixedly connected to the partition plate (208). A support partition plate (209) is fixedly installed on the top of the partition plate (208) near the guide plate (210).
8. The DC charging device employing a vertical air duct according to claim 1, characterized in that: The lower partition (206) is located above the second air inlet (203), the upper partition (207) is located below the second air outlet (204), and the guide plate (210) is located below the first air outlet (202).