Ventilation structure of an electrical cabinet
By designing an easy-to-disassemble installation mechanism and air supply mechanism in the electrical cabinet, the problem of inconvenient disassembly and assembly when the fan is damaged is solved, achieving convenient maintenance and efficient ventilation.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHUZHOU LONGJIANTAI RAILWAY VEHICLE ELECTRIC APPLIANCE CO LTD
- Filing Date
- 2025-06-13
- Publication Date
- 2026-05-26
AI Technical Summary
The ventilation structure of existing electrical cabinets is inconvenient to disassemble and maintain when the fans are aging or damaged, which affects maintenance efficiency.
A ventilation structure including an installation mechanism, an air supply mechanism, and a cabinet mechanism was designed. By rotating the card plate and cooperating with the spring, the fan and the connecting frame can be easily disassembled and assembled. Combined with the screen structure, impurities are prevented from entering, thus improving the ease of maintenance.
It enables convenient disassembly and maintenance when the fan is damaged, improving the practicality and maintenance efficiency of the device while maintaining ventilation.
Smart Images

Figure CN224290459U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of ventilation structure technology, and in particular to a ventilation structure for an electrical cabinet. Background Technology
[0002] Electrical cabinets are primarily used to store and protect various electronic, mechanical, and electrical equipment, which generates a significant amount of heat during operation. If this heat cannot be effectively dissipated, it can lead to overheating, resulting in performance degradation or even malfunction. To ensure the stable operation of the equipment within the electrical cabinet, various ventilation structures have been developed.
[0003] However, when using the ventilation structure of the electrical cabinet, sometimes the fans used for ventilation and heat dissipation may become old or damaged due to long-term use, but it is inconvenient to disassemble and maintain them. This results in more time being spent on disassembly and assembly, which in turn affects the efficiency of later maintenance. Utility Model Content
[0004] To solve the above-mentioned technical problems, this utility model provides a ventilation structure for an electrical cabinet.
[0005] This utility model is achieved by the following technical solution: a ventilation structure for an electrical cabinet, including an installation mechanism, an air supply mechanism and a cabinet mechanism, wherein the installation mechanism is located at the upper end of the cabinet mechanism and the air supply mechanism is located inside the installation mechanism;
[0006] The installation mechanism includes a mounting frame, with fixed brackets fixedly connected to both sides of the mounting frame. A rotating clamping plate is rotatably connected to the inner wall of the fixed bracket. An installation groove is provided at the upper end of the mounting frame. A first sliding shaft is slidably connected to the inner wall of the mounting frame. A first spring is sleeved on the surface of the first sliding shaft. A lifting plate is fixedly connected to the upper end of the first sliding shaft. A second sliding shaft is slidably connected to the inner wall of the mounting frame. A second spring is sleeved on the surface of the second sliding shaft. The surface of the second sliding shaft contacts the side end of the rotating clamping plate. The surface of the lifting plate is slidably connected to the inner wall of the installation groove.
[0007] The above technical solution, which uses rotating plates on both sides and a first spring to push the lifting plate upward, enables convenient positioning and disassembly of the subsequent connecting frame, making subsequent fan maintenance more convenient and improving the overall practicality of the device.
[0008] As a further improvement to the above solution, the air supply mechanism includes a connecting frame, a limiting groove is formed at the upper end of the connecting frame, a pressure frame is fixedly connected to the lower end of the connecting frame, a fixing plate is fixedly connected to the inner wall of the connecting frame, a fan is fixedly connected to the side end of the fixing plate, the fan is located inside the connecting frame, and the inner wall of the limiting groove is engaged with the surface of the rotating plate.
[0009] The above technical solution uses a fan that can be disassembled and installed together with the connecting frame to ventilate the inside of the electrical cabinet, which makes it more convenient to disassemble and maintain the fan, and makes the device more convenient to use.
[0010] As a further improvement to the above solution, the cabinet mechanism includes an electrical cabinet body, ventilation slots are provided on both sides of the electrical cabinet body, a first screen is fixedly connected to the inner wall of the ventilation slot, a second screen is fixedly connected to the upper end of the electrical cabinet body, the upper end of the electrical cabinet body is fixedly connected to the lower end of the mounting bracket, and the second screen is located at the lower end of the fan.
[0011] By using the above technical solution and the cooperation of the first and second screens, the purpose of preventing impurities from entering the electrical cabinet is achieved while ventilation is being carried out, thus improving the practicality of the device.
[0012] As a further improvement to the above solution, the inner wall of the mounting groove is slidably connected to the surface of the pressure frame, and the first spring is located inside the mounting groove.
[0013] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0014] This utility model features an installation mechanism that, when the fan at the top of the electrical cabinet is damaged due to prolonged use or external factors and requires disassembly and maintenance, simply press down on the connecting frame to move the pressure frame downwards. Simultaneously, the pressure frame moves the lifting plate downwards, causing the rotating plates on both sides to separate from the limiting grooves. Once the rotating plates are no longer limited, the second spring at their side ends causes the second sliding shaft to pop out from the inner wall of the mounting frame, thus rotating the rotating plates to both sides. This allows the mounting frame, along with the fan, to be removed for maintenance. After maintenance, the connecting frame can be reinserted back into place. Simultaneously, the pressure frame presses down the lifting plate again, causing the first sliding shaft to retract downwards. At this time, the first spring is compressed, and then the two rotating plates rotate back in sequence. After the rotation is completed, the pressure on the connecting frame is released. Then, the first spring drives the lifting plate to rebound, thereby driving the pressure frame and the connecting frame to rise as a whole. At the same time, the two rotating plates are locked into the inner wall of the limiting groove again, thus completing the reinstallation. The design of using the two lifting plates to push the pressure frame and rotating plates upwards to limit the connecting frame achieves the purpose of convenient disassembly and maintenance of the fan along with the connecting frame when the fan is damaged, improving the overall practicality of the device.
[0015] This utility model incorporates an air supply mechanism: by connecting the power supply inside the electrical cabinet, the fan is started to rotate, thereby drawing air from the upper part of the cabinet through the gaps in the second screen. Subsequently, the hot air inside the cabinet is expelled through the gaps in the first screens on both sides, thus completing the internal ventilation of the electrical cabinet. The design of using a fan that can be disassembled and installed together with the connecting frame to ventilate the interior of the electrical cabinet makes it more convenient to disassemble and maintain the fan, making the device more convenient to use. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0017] Figure 2 This is a schematic diagram of the installation mechanism structure of this utility model;
[0018] Figure 3 This is a schematic diagram of the specific parts structure of the installation mechanism of this utility model;
[0019] Figure 4 This utility model Figure 3 Enlarged structural diagram at point A in the middle;
[0020] Figure 5 This is a schematic diagram of the air supply mechanism of this utility model;
[0021] Figure 6 This is a schematic diagram of the cabinet mechanism of this utility model.
[0022] Explanation of key symbols:
[0023] 1. Installation mechanism; 101. Mounting bracket; 102. Fixing bracket; 103. Rotating plate; 104. Mounting slot; 105. First sliding shaft; 106. First spring; 107. Lifting plate; 108. Second sliding shaft; 109. Second spring; 2. Air supply mechanism; 201. Connecting bracket; 202. Limiting slot; 203. Pressure bracket; 204. Fixing plate; 205. Fan; 3. Cabinet mechanism; 301. Electrical cabinet body; 302. Ventilation slot; 303. First screen; 304. Second screen. Detailed Implementation
[0024] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. It should be noted that, without conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.
[0025] Example:
[0026] Please combine Figure 1-6The ventilation structure of an electrical cabinet in this embodiment includes a mounting mechanism 1, an air supply mechanism 2, and a cabinet mechanism 3. The mounting mechanism 1 is located at the upper end of the cabinet mechanism 3, and the air supply mechanism 2 is located inside the mounting mechanism 1.
[0027] The mounting mechanism 1 includes a mounting frame 101, with fixed frames 102 fixedly connected to both sides of the mounting frame 101. A rotating plate 103 is rotatably connected to the inner wall of the fixed frame 102. A mounting groove 104 is provided at the upper end of the mounting frame 101. A first sliding shaft 105 is slidably connected to the inner wall of the mounting frame 101. A first spring 106 is sleeved on the surface of the first sliding shaft 105. A lifting plate 107 is fixedly connected to the upper end of the first sliding shaft 105. A second sliding shaft 108 is slidably connected to the inner wall of the mounting frame 101. A second spring 109 is sleeved on the surface of the second sliding shaft 108. The design of using the rotating plate 103 and the first spring 106 to push the lifting plate 107 upwards achieves the purpose of conveniently limiting the disassembly and assembly of the subsequent connecting frame 201, making subsequent maintenance of the fan 205 more convenient and improving the overall practicality of the device.
[0028] The surface of the second sliding shaft 108 contacts the side end of the rotating clamping plate 103, and the surface of the lifting plate 107 is slidably connected to the inner wall of the mounting groove 104.
[0029] The air supply mechanism 2 includes a connecting frame 201. A limiting groove 202 is provided at the upper end of the connecting frame 201. A pressure frame 203 is fixedly connected to the lower end of the connecting frame 201. A fixing plate 204 is fixedly connected to the inner wall of the connecting frame 201. A fan 205 is fixedly connected to the side end of the fixing plate 204. The design of using a fan 205 that can be disassembled and installed together with the connecting frame 201 to ventilate the inside of the electrical cabinet body 301 achieves the purpose of making it more convenient to disassemble and maintain the fan 205, making the device more convenient to use.
[0030] The fan 205 is located inside the connecting bracket 201, and the inner wall of the limiting groove 202 is engaged with the surface of the rotating plate 103.
[0031] The cabinet mechanism 3 includes an electrical cabinet body 301. Ventilation slots 302 are provided on both sides of the electrical cabinet body 301. A first screen 303 is fixedly connected to the inner wall of the ventilation slot 302. A second screen 304 is fixedly connected to the upper end of the electrical cabinet body 301.
[0032] The upper end of the electrical cabinet body 301 is fixedly connected to the lower end of the mounting bracket 101, and the second screen 304 is located at the lower end of the fan 205.
[0033] The inner wall of the mounting groove 104 is slidably connected to the surface of the pressure frame 203, and the first spring 106 is located inside the mounting groove 104.
[0034] The implementation principle of the ventilation structure of an electrical cabinet in this application embodiment is as follows: When using the device, first connect the power supply inside the electrical cabinet body 301 to start the fan 205 to rotate, thereby driving the upper air to enter the interior of the electrical cabinet body 301 through the gap of the second screen 304. Then, the hot air inside the electrical cabinet body 301 is driven out through the gap of the first screen 303 on both sides, thereby completing the internal ventilation of the electrical cabinet body 301. When the fan 205 at the upper end of the electrical cabinet body 301 is damaged due to long-term use or external factors and needs to be disassembled and maintained, simply press down on the connecting frame 201 as a whole to drive the pressure frame 203 to move downward. At the same time, the pressure frame 203 drives the lifting plate 107 to move downward, thereby separating the rotating plates 103 on both sides from the limiting groove 202. At this time, after the rotating plates 103 lose their limiting position, the second spring 109 on the side of the rotating plate 103 drives the second sliding shaft 108 to pop out from the inner wall of the mounting frame 101, thereby driving... Rotate the rotating plate 103 to both sides, at which point the mounting bracket 101 and the fan 205 can be removed as a whole for maintenance. After maintenance, insert the connecting bracket 201 back into its original position. At the same time, the pressure bracket 203 presses down the lifting plate 107 again, causing the first sliding shaft 105 to retract downwards. At this time, the first spring 106 is compressed. Then, rotate the rotating plates 103 on both sides in sequence. After the rotation is completed, the pressure on the connecting bracket 201 is released. Then, the first spring 106 drives the lifting plate 107 to rebound, thereby driving the pressure bracket 203 and the connecting bracket 201 to rise as a whole. At the same time, the rotating plates 103 on both sides are locked into the inner wall of the limiting groove 202 again, thus completing the reinstallation. The design of using the lifting plates 107 on both sides to push the pressure bracket 203 and the rotating plate 103 upwards to limit the connecting bracket 201 achieves the purpose of conveniently disassembling and maintaining the fan 205 together with the connecting bracket 201 when the fan 205 is damaged, improving the overall practicality of the device.
[0035] The above embodiments are merely preferred embodiments of this utility model and should not be construed as limiting the scope of protection of this utility model. Any non-substantial changes and substitutions made by those skilled in the art based on this utility model shall fall within the scope of protection claimed by this utility model.
Claims
1. A ventilation structure of an electric cabinet, characterized by comprising: It includes an installation mechanism (1), an air supply mechanism (2), and a cabinet mechanism (3), wherein the installation mechanism (1) is located at the upper end of the cabinet mechanism (3), and the air supply mechanism (2) is located inside the installation mechanism (1); The installation mechanism (1) includes a mounting frame (101), with fixed frames (102) fixedly connected to both sides of the mounting frame (101). A rotating plate (103) is rotatably connected to the inner wall of the fixed frame (102). An installation groove (104) is provided at the upper end of the mounting frame (101). A first sliding shaft (105) is slidably connected to the inner wall of the mounting frame (101). A first spring (106) is sleeved on the surface of the first sliding shaft (105). A lifting plate (107) is fixedly connected to the upper end of the first sliding shaft (105). A second sliding shaft (108) is slidably connected to the inner wall of the mounting frame (101). A second spring (109) is sleeved on the surface of the second sliding shaft (108).
2. An air vent structure for an electrical cabinet as claimed in claim 1, wherein: The surface of the second sliding shaft (108) contacts the side end of the rotating plate (103), and the surface of the lifting plate (107) is slidably connected to the inner wall of the mounting groove (104).
3. An air vent structure for an electrical cabinet as claimed in claim 2, wherein: The air supply mechanism (2) includes a connecting frame (201), the upper end of the connecting frame (201) is provided with a limiting groove (202), the lower end of the connecting frame (201) is fixedly connected to a pressure frame (203), the inner wall of the connecting frame (201) is fixedly connected to a fixing plate (204), and the side end of the fixing plate (204) is fixedly connected to a fan (205).
4. An air vent structure for an electrical cabinet as claimed in claim 3, wherein: The fan (205) is located inside the connecting frame (201), and the inner wall of the limiting groove (202) is engaged with the surface of the rotating plate (103).
5. The ventilation structure of an electrical cabinet as described in claim 4, characterized in that: The cabinet mechanism (3) includes an electrical cabinet body (301), ventilation slots (302) are provided on both sides of the electrical cabinet body (301), a first screen (303) is fixedly connected to the inner wall of the ventilation slot (302), and a second screen (304) is fixedly connected to the upper end of the electrical cabinet body (301).
6. The ventilation structure of an electrical cabinet as described in claim 5, characterized in that: The upper end of the electrical cabinet body (301) is fixedly connected to the lower end of the mounting bracket (101), and the second screen (304) is located at the lower end of the fan (205).
7. The ventilation structure of an electrical cabinet as described in claim 6, characterized in that: The inner wall of the mounting groove (104) is slidably connected to the surface of the pressure frame (203), and the first spring (106) is located inside the mounting groove (104).