Waterproof noise reduction structure of outdoor charging equipment cabinet
By eliminating the louvers in the outdoor charging equipment cabinet and adopting a combination of ventilation holes, air ducts, and dustproof cotton, the problems of waterproof failure and high noise were solved, achieving waterproof, noise reduction, and heat dissipation effects for the equipment, and reducing production costs.
Patent Information
- Application Number
- CN202423145408.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-19
- Publication Date
- 2025-12-02
- Estimated Expiration
- 2034-12-19
AI Technical Summary
Existing outdoor charging equipment cabinets have insufficient waterproofing performance, which can easily lead to moisture ingress, affecting internal components. They are also noisy, have high production costs, are complex to manufacture, and have poor heat dissipation.
The cabinet design without louvers allows for airflow from bottom to top and from right to left by ventilation holes on the front and bottom of the cabinet, combined with the air duct design of the air duct, dustproof cotton and cabinet fan. This removes heat and reduces moisture ingress. Sound-absorbing cotton is used to reduce noise and simplify the production process.
It effectively prevents moisture from entering the equipment, reduces equipment noise, improves production efficiency, reduces processing costs, and extends equipment lifespan and competitiveness.
Smart Images
Figure CN223625430U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of waterproofing and noise reduction for outdoor equipment, and in particular to a waterproof and noise-reducing structure for an outdoor charging equipment cabinet. Background Technology
[0002] A server rack is a freestanding or self-supporting enclosure used to house electrical or electronic equipment. Server racks are typically equipped with doors, removable or non-removable side panels, and a back panel. Outdoor electric vehicle charging station cabinets are commonly used charging devices for new energy vehicles. These cabinets are installed outdoors year-round and inevitably exposed to wind and rain. Currently, outdoor cabinets on the market use conventional waterproof structures, such as stamped louvered structures or welded louvered structures. However, their waterproof or corrosion-resistant performance has certain shortcomings. These structures are also relatively expensive and require controlled welding processes. While simple louvered structures are low-cost and easy to use, they can only block naturally flowing water from entering. They can also block naturally flowing water and rain at a certain angle in light winds. However, in slightly stronger winds, they cannot completely block small water droplets carried by the wind, nor can they completely prevent angled water droplets or water droplets from entering. During the rainy season, even a slight breeze can easily allow water mist to enter. In stronger typhoons or heavy rain, they are practically incapable of preventing rainwater from entering the charging station cabinet. For charging safety, these cabinets need to be covered and sealed off during windy rainy days, light rainy seasons, and heavy rain, and the power to the charging station must be cut off to protect its safety.
[0003] This conventional louvered waterproof structure uses welding between the waterproof louvers and the left, right, and top frames. When the surface is treated with anti-corrosion, the welded joints are prone to rust. There are also blind spots for spraying between the louvers and the left and right frames, resulting in low anti-corrosion performance. When a waterproof louver is damaged, repair and replacement require professional welding and cutting personnel. The installation is limited, and professional on-site construction is required, resulting in slow deployment speed and low repair efficiency. The repair effect varies from person to person, and the repair effect may also be due to the narrow structural space, which makes welding and anti-rust spraying difficult, resulting in poor waterproof performance and short equipment life.
[0004] Currently, conventional chargers primarily employ a front-intake, rear-exhaust airflow design for the charging modules. Complex S-shaped multi-layered louvered structures are welded or assembled onto the air intake and exhaust panels of the cabinet. The charging module's cooling method is also a forced-air cooling mode with front-intake and rear-exhaust. As module power increases, the cooling requirements of the modules themselves become increasingly stringent. While module power ranges from 15kW to 40kW, the module size hasn't increased proportionally, yet the number of fans at the module's air intake has increased from two to three. This significantly increases module noise. Furthermore, the overall number of fans inside the cabinet also increases due to the increased power of the charger, resulting in a substantial increase in noise. Conventional waterproofing methods for chargers involve complex manufacturing processes, high costs, and low production efficiency. Moreover, conventional air duct designs do not reduce the noise generated by the charging modules themselves. On the other hand, because the air intake faces the module directly, during operation, the suction force of the fans easily draws moisture that has seeped into the dustproof cotton at the air intake into the module, potentially causing module failure over long-term operation. Therefore, it is necessary to provide a waterproof and noise-reducing structure for outdoor charging equipment cabinets, which can reduce the impact on internal components of the equipment due to waterproof failure, effectively reduce equipment noise, simplify the manufacturing process, dissipate heat from the working modules, and effectively reduce the processing cost of equipment structural components. Utility Model Content
[0005] The technical problem to be solved by this utility model is to overcome the shortcomings of the prior art and provide a waterproof and noise-reducing structure for outdoor charging equipment cabinets. This structure can reduce the impact of waterproof failure on internal components of the equipment, effectively reduce equipment noise, has a simple manufacturing process, can dissipate heat from the working modules, and effectively reduce the processing cost of equipment structural components.
[0006] The technical solution adopted by this utility model is as follows: This utility model includes a cabinet, a working module is arranged inside the upper part of the cabinet, a ventilation hole is opened at the lower part of the front door panel of the cabinet, a wind duct is arranged below the working module and the wind duct is directly facing the ventilation hole, a dustproof cotton is arranged on the lower front side of the working module, and a cabinet fan and a wind cover are arranged on the rear door panel of the cabinet. When the cabinet fan is working, the air flows through the ventilation hole, the wind duct, the dustproof cotton, the working module, and the cabinet fan in sequence, and then is discharged from the wind cover.
[0007] As described above, when the cabinet fan is operating, the airflow direction is sequentially from bottom to top, from right to left, and from top to bottom, thereby removing heat from the working modules. This also reduces the impact on internal components caused by waterproofing failure, effectively lowering equipment noise. The simplified front and rear door structure and manufacturing process significantly reduce the processing costs of structural components. The cabinet has no louvers on the front or back, and the air inlet and outlet openings are located at the bottom, making it difficult for water to enter the cabinet. Since the dustproof cotton is far from the working modules, even if some moisture is present, it is mostly adsorbed by the suction of the cabinet fan and cannot enter the working modules, effectively reducing the failure rate of the working modules. Because the cabinet eliminates the complex louver design, the cabinet structure is simple, the manufacturing process is simple, production costs are reduced, production efficiency is increased, and the competitiveness of the equipment is enhanced.
[0008] In a preferred embodiment, a module fan is provided on the front side of the working module, the module fan is located above the dustproof cotton, and the cabinet fan is located on the rear side of the working module.
[0009] A preferred embodiment is that the inner wall of the front door panel of the cabinet and the inner wall of the hood are both provided with sound-absorbing cotton.
[0010] In a preferred embodiment, the longitudinal surface of the air duct is positioned opposite to the ventilation hole, and the bottom of the air duct is located below the ventilation hole.
[0011] In a preferred embodiment, the dustproof cotton is inclined, with its lower end connected to the upper end of the air duct and its upper end connected to the inner wall of the front door panel of the cabinet. The angle between the dustproof cotton and the inner wall of the front door panel of the cabinet is 25 degrees.
[0012] A preferred embodiment is that the outer wall of the rear door panel of the cabinet is provided with an air guide plate, which is located at the air outlet of the cabinet fan.
[0013] In a preferred embodiment, both the air guide plate and the air shroud are inverted L-shaped structures, and the openings of both the air guide plate and the air shroud are downward-facing.
[0014] A preferred embodiment is that the number of cabinet fans is several groups, and the several groups of cabinet fans are installed on the back door panel of the cabinet. There are partitions between the cabinet fans that are adjacent vertically and horizontally. Attached Figure Description
[0015] Figure 1 This is a three-dimensional structural diagram of the present invention;
[0016] Figure 2This is an exploded three-dimensional structural diagram of this utility model;
[0017] Figure 3 This is a three-dimensional structural diagram of the wind shield;
[0018] Figure 4 This is an exploded three-dimensional structural diagram of the working module;
[0019] Figure 5 This is a schematic diagram of the airflow direction of this utility model;
[0020] Figure 6 This is a three-dimensional structural diagram of the air duct and the dustproof cotton. Detailed Implementation
[0021] like Figures 1 to 5 As shown, in this embodiment, the present invention includes a cabinet 1. Several working modules 2 are arranged on the upper part of the interior of the cabinet 1. A ventilation hole 4 is opened at the lower part of the front door panel of the cabinet 1. A wind duct 3 is arranged below the working module 2 and faces the ventilation hole 4. A dustproof cotton 5 is arranged on the lower front side of the working module 2. A cabinet fan 6 and a wind cover 7 are arranged on the rear door panel of the cabinet 1. When the cabinet fan 6 is working, the air flows through the ventilation hole 4, the wind duct 3, the dustproof cotton 5, the working module 2, and the cabinet fan 6 in sequence, and then is discharged from the wind cover 7.
[0022] The cabinet 1 has no louvered windows on the front or back. Only the lower part of the cabinet 1 has a stamped ventilation hole 4, which houses the upward-bent air duct 3. The upper part of the air duct 3 is equipped with dustproof cotton 5. Air flows in from the lower front of the cabinet 1, and the cabinet fan 6 directs the air from above the air duct 3, through the dustproof cotton 5 (shown on the slanted side), into the interior of the working module 2. The air is then discharged downward from the fan cover 7, thereby removing heat from the working module 2 and achieving a cooling effect. At the same time, it can reduce the impact on the internal components of the equipment due to waterproof failure.
[0023] like Figure 4 As shown, in this embodiment, a module fan 8 is provided on the front side of the working module 2, and the module fan 8 is located above the dustproof cotton 5. The cabinet fan 6 is located on the rear side of the working module 2. Air flows in from the lower front of the cabinet 1, and through the module fan 8 and the cabinet fan 6, the air enters the interior of the working module 2 from above the air duct 3, behind the dustproof cotton 5 (shown on the slanted side). The module fan enhances heat dissipation.
[0024] like Figures 1 to 3As shown, in this embodiment, sound-absorbing cotton 9 is provided on the inner wall of the front door panel of the cabinet 1 and the inner wall of the fan hood 7. The front and back of the cabinet 1 have no louvers, which blocks the noise generated by the working module 2 and the cabinet fan 6 from the direction of noise propagation. The addition of the sound-absorbing cotton 9 to the inner wall of the front door panel of the cabinet 1 further absorbs some noise. Overall, this device can effectively reduce the noise generated by the working module 2 and the cabinet fan 6.
[0025] like Figure 6 As shown, in this embodiment, the longitudinal surface of the air duct 3 is opposite to the ventilation hole 4, and the bottom of the air duct 3 is located below the ventilation hole 4.
[0026] like Figure 6 As shown, in this embodiment, the dustproof cotton 5 is inclined, with its lower end connected to the upper end of the air duct 3 and its upper end connected to the inner wall of the front door panel of the cabinet 1. The angle between the dustproof cotton 5 and the inner wall of the front door panel of the cabinet 1 is 25 degrees. The inclined arrangement of the dustproof cotton 5 increases its surface area, allowing for more uniform and smooth airflow into the working module 2. The inclination angle of the dustproof cotton 5 can be adjusted in real time under different conditions.
[0027] like Figures 1 to 3 As shown, in this embodiment, an air guide plate 10 is provided on the outer wall of the back door panel of the cabinet 1, and the air guide plate 10 is located at the air outlet of the cabinet fan 6. The air guide plate 10 is used to ensure smoother airflow and prevent cross-flow between adjacent cabinet fans 6, which would affect the heat dissipation effect.
[0028] like Figures 1 to 2 As shown, in this embodiment, both the air guide plate 10 and the air cover 7 are inverted L-shaped structures, and the openings of both the air guide plate 10 and the air cover 7 are downward-facing.
[0029] like Figures 1 to 5 As shown, in this embodiment, there are several groups of cabinet fans 6, which are arranged on the back door panel of the cabinet 1. A partition 11 is provided between each vertically adjacent cabinet fan 6 and between each horizontally adjacent cabinet fan 6. The partition 11 is used to prevent cross-flow of air between the left and right cabinet fans 6, thereby affecting the heat dissipation effect.
[0030] Although the embodiments of this utility model are described with reference to actual solutions, they do not constitute a limitation on the meaning of this utility model. For those skilled in the art, modifications to the implementation schemes and combinations with other schemes based on this specification are obvious.
Claims
1. A waterproof and noise-reducing structure for an outdoor charging equipment cabinet, comprising a cabinet body (1), wherein a plurality of working modules (2) are arranged on the upper part of the interior of the cabinet body (1), characterized in that: The cabinet (1) has a ventilation hole (4) at the bottom of the front door panel. The working module (2) has a wind hopper (3) below it, which faces the ventilation hole (4). The working module (2) has a dustproof cotton (5) at the bottom of the front side. The cabinet (1) has a cabinet fan (6) and a fan cover (7) on the back door panel. When the cabinet fan (6) is working, the air flows through the ventilation hole (4), the wind hopper (3), the dustproof cotton (5), the working module (2), and the cabinet fan (6) in sequence, and then is discharged from the fan cover (7).
2. The waterproof and noise-reducing structure for an outdoor charging equipment cabinet according to claim 1, characterized in that: A module fan (8) is provided on the front side of the working module (2), the module fan (8) is located above the dustproof cotton (5), and the cabinet fan (6) is located on the rear side of the working module (2).
3. The waterproof and noise-reducing structure for an outdoor charging equipment cabinet according to claim 1, characterized in that: The inner wall of the front door panel of the cabinet (1) and the inner wall of the hood (7) are both provided with sound-absorbing cotton (9).
4. The waterproof and noise-reducing structure for an outdoor charging equipment cabinet according to claim 1, characterized in that: The longitudinal surface of the air duct (3) is opposite to the ventilation hole (4), and the bottom of the air duct (3) is located below the ventilation hole (4).
5. The waterproof and noise-reducing structure for an outdoor charging equipment cabinet according to claim 1, characterized in that: The dustproof cotton (5) is inclined, the lower end of the dustproof cotton (5) is connected to the upper end of the air duct (3), the upper end of the dustproof cotton (5) is connected to the inner wall of the front door panel of the cabinet (1), and the included angle between the dustproof cotton (5) and the inner wall of the front door panel of the cabinet (1) is 25 degrees.
6. The waterproof and noise-reducing structure for an outdoor charging equipment cabinet according to claim 1, characterized in that: The outer wall of the back door panel of the cabinet (1) is provided with an air guide plate (10), which is located at the air outlet of the cabinet fan (6).
7. The waterproof and noise-reducing structure for an outdoor charging equipment cabinet according to claim 6, characterized in that: Both the air guide plate (10) and the air cover (7) are inverted L-shaped structures, and the openings of both the air guide plate (10) and the air cover (7) are set downwards.
8. The waterproof and noise-reducing structure for an outdoor charging equipment cabinet according to claim 1, characterized in that: The number of cabinet fans (6) is several groups. Several groups of cabinet fans (6) are installed on the back door panel of the cabinet (1). There are partitions (11) between the cabinet fans (6) that are adjacent to each other on the top and bottom and between the cabinet fans (6) that are adjacent to each other on the left and right.