Heat dissipation structure of distribution box
By designing a removable heat dissipation mechanism, dustproof heat dissipation components and fan shields can be easily removed, solving the problems of dust accumulation and safety hazards in the existing power distribution box heat dissipation structure, and achieving convenient cleaning and safe operation.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-08
- Publication Date
- 2026-04-14
AI Technical Summary
The existing heat dissipation structure of the distribution box makes it difficult to easily remove the dustproof heat dissipation components, resulting in dust accumulation that affects the heat dissipation effect, and the exposed fan is likely to pose a danger to the staff.
A removable heat dissipation mechanism was designed, including components such as a dust cover, a rotating block, a movable pull plate, a return spring, and a plug rod, to enable convenient removal and shielding of the dust cover and fan.
It improves the ease of cleaning dustproof heat dissipation components, enhances safety, prevents fans from directly contacting workers, and improves the heat dissipation efficiency and safety of the distribution box.
Smart Images

Figure CN224123754U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of distribution boxes, specifically a heat dissipation structure for a distribution box. Background Technology
[0002] A distribution box is a low-voltage power distribution device that assembles switching equipment, measuring instruments, protective electrical appliances and auxiliary equipment in a closed or semi-closed metal cabinet or panel according to electrical wiring requirements. It is used to distribute electrical energy, control the on / off state of circuits, and protect, monitor and measure circuits or electrical equipment.
[0003] A specific example of a heat dissipation structure for an existing distribution box can be found in application number CN202421090097.5. This structure includes a main body and an air duct component. The main body includes a box body, a door, and a modular fan consisting of an outer frame and a fan. Air ducts are formed through both sides of the box body, and sliding grooves are formed at the top and bottom of the box body along its width. The air duct component includes two partitions connected by the sliding grooves. Mounting grooves are formed through the partitions, and detachable connecting mechanisms are provided in the mounting grooves for mounting the modular fans. The airflow directions on opposite sides of the two sets of modular fans are opposite. This invention divides the box body into three areas using two partitions. The middle area is used to install components, and the two side areas serve as air ducts. Because the airflow directions on the sides of the two sets of modular fans are opposite, one set of fans draws in cool air from the outside and blows it into the box body, while the other set draws in hot air from the box body and blows it to the outside. This forms a circulating air duct structure, which effectively dissipates heat from the box body.
[0004] The aforementioned device does not include a component that allows for the removal of the dustproof heat dissipation component. Since the surface of the dustproof heat dissipation component is prone to accumulating a lot of dust after long-term use, if the dustproof heat dissipation component is not cleaned in time, it will easily lead to a reduction in the heat dissipation effect of the device. However, the existing device cannot be removed, making cleaning difficult. Therefore, a heat dissipation structure for the distribution box is proposed to address the above problem. Utility Model Content
[0005] To overcome the shortcomings of existing technology, the existing devices do not have components that allow for the removal of dustproof heat dissipation components. Since dustproof heat dissipation components tend to accumulate a lot of dust on their surface after long-term use, if they are not cleaned in time, the heat dissipation effect of the device will be reduced. However, existing devices cannot be removed, which makes cleaning difficult. This utility model proposes a heat dissipation structure for a power distribution box.
[0006] The technical solution adopted by this utility model to solve its technical problem is: a heat dissipation structure for a distribution box, comprising a distribution box body; a door is hinged to the left side of the distribution box body, and a removable heat dissipation mechanism is provided inside and outside the distribution box body;
[0007] The detachable heat dissipation mechanism includes a dustproof box, which is located at the middle of the top of the main body of the distribution box. The top left and right sides of the main body of the distribution box are also fixedly connected to fixed seats. A rotating block is sleeved on the outside of the fixed seat and the fixed seat is rotatably connected to the rotating block. A first movable pull plate is inserted inside the rotating block and is slidably connected to the first movable pull plate. A first return spring is also fixedly connected to the front and rear ends inside the rotating block. The top of the first return spring is fixedly connected to the first movable pull plate.
[0008] Preferably, a first insert rod is fixedly connected to the bottom end of the first movable pull plate, and first fixing blocks are also fixedly connected to the left and right sides of the dustproof box. The bottom end of the first insert rod is inserted into the first fixing block, and the first insert rod is slidably connected to the first fixing block.
[0009] Preferably, the top of the main body of the distribution box is also fixedly connected to the left and right sides near the dustproof box, and the first fixing block is sleeved on the outside of the second fixing block, and the first fixing block is slidably connected to the second fixing block.
[0010] Preferably, sleeve rods are also fixedly connected to the left and right sides of the main body of the distribution box near the front position. A movable rod is sleeved inside the sleeve rod, and the sleeve rod is slidably connected to the movable rod. One end of a second return spring is fixedly connected inside the sleeve rod, and the other end of the second return spring is fixedly connected to the movable rod.
[0011] Preferably, a second movable pull plate is fixedly connected to the side end of the movable rod, and a third insert rod is fixedly connected to the side end of the second movable pull plate. Dustproof plates are also provided on the left and right sides of the main body of the distribution box. The third insert rod is inserted into the dustproof plate and is slidably connected to the dustproof plate. The upper and lower ends of the left and right sides of the main body of the distribution box are also fixedly connected to the second fixing blocks. The dustproof plate is inserted into the second fixing block and is slidably connected to the second fixing block.
[0012] Preferably, a fixing plate is fixedly connected inside the main body of the distribution box near the upper position, a motor is fixedly connected to the bottom end of the fixing plate, a fan is fixedly connected to the bottom end of the motor, a shielding box is sleeved on the outside of the fan, and a fixing plate is fixedly connected to the top of the shielding box.
[0013] The advantages of this utility model are:
[0014] 1. This utility model, through the structural design of a detachable heat dissipation mechanism, realizes the function of easily removing the dustproof heat dissipation component. It solves the problem that existing devices do not have a component for removing the dustproof heat dissipation component. Since the surface of the dustproof heat dissipation component is prone to accumulating a lot of dust after long-term use, if the dustproof heat dissipation component is not cleaned in time, it will easily lead to a reduction in the heat dissipation effect of the device. However, existing devices cannot be removed, making cleaning difficult. This invention improves convenience.
[0015] 2. This utility model achieves the function of shielding the fan through the structural design of the detachable heat dissipation mechanism, which solves the problem that if the fan is exposed on the outside, it is easy for the fan to injure the staff when it is necessary to repair the internal parts of the device during operation, thus improving safety. Attached Figure Description
[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0017] Figure 1 This is a three-dimensional structural diagram of the present invention;
[0018] Figure 2 This is a partial cross-sectional structural diagram of the present invention;
[0019] Figure 3 This is a schematic diagram of the second partial cross-sectional structure of the present invention;
[0020] Figure 4 For the present utility model Figure 1 Enlarged structural diagram at point A in the middle;
[0021] Figure 5 For the present utility model Figure 1 Enlarged structural diagram at point B;
[0022] Figure 6 For the present utility model Figure 2 Enlarged structural diagram at point C;
[0023] Figure 7 For the present utility model Figure 3 Enlarged structural diagram at point D.
[0024] In the diagram: 1. Main body of the distribution box; 2. Box door; 10. Fixed base; 11. Rotating block; 12. First movable pull plate; 13. First return spring; 14. Dustproof box; 15. First insertion rod; 16. First fixed block; 17. Second insertion rod; 18. Sleeve rod; 19. Second return spring; 20. Moving rod; 21. Second movable pull plate; 22. Third insertion rod; 23. Dustproof plate; 24. Second fixed block; 25. Fixed plate; 26. Motor; 27. Fan; 28. Shielding box. Detailed Implementation
[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.
[0026] Please see Figures 1-7 As shown, a heat dissipation structure for a distribution box includes a distribution box body 1; a door 2 is hinged to the left end of the distribution box body 1, and a removable heat dissipation mechanism is provided inside and outside the distribution box body 1.
[0027] The detachable heat dissipation mechanism includes a dust box 14, which is located at the middle of the top of the main body 1 of the distribution box. The left and right sides of the top of the main body 1 of the distribution box are also welded together with a fixed seat 10. A rotating block 11 is sleeved on the outside of the fixed seat 10, and the fixed seat 10 is rotatably connected to the rotating block 11. The inner wall of the rotating block 11 sleeved on the outside of the fixed seat 10 is circular. A first movable pull plate 12 is inserted inside the rotating block 11, and the rotating block 11 is slidably connected to the first movable pull plate 12. The inner wall of the rotating block 11 sleeved on the outside of the first movable pull plate 12 is square. The front and rear ends of the rotating block 11 are also welded together with a first return spring 13, and the top of the first return spring 13 is welded together with the first movable pull plate 12.
[0028] During operation, the first movable pull plates 12 on the left and right sides above the main body 1 of the distribution box are pulled upwards simultaneously. When the first movable pull plates 12 are pulled upwards, one end of the first movable pull plates 12 moves upwards along the inside of the rotating block 11, while the first return spring 13 is pulled to extend, causing the first movable pull plates 12 to flip outwards, which in turn causes the rotating block 11 to rotate outwards along the outside of the fixed base 10.
[0029] Furthermore, a first insert rod 15 is welded to the bottom of the first movable pull plate 12, and a first fixing block 16 is welded to the left and right sides of the dust box 14. The bottom of the first insert rod 15 is inserted into the first fixing block 16, and the first insert rod 15 is slidably connected to the first fixing block 16. The first insert rod 15 is a round rod design.
[0030] During operation, the first movable pull plate 12 moves upward, simultaneously driving the first insertion rod 15 to move upward along the inside of the first fixing block 16 on the side of the dustproof box 14 until it is completely disengaged from the inside of the first fixing block 16.
[0031] Furthermore, the top of the main body 1 of the distribution box is also welded together with the left and right sides near the dust box 14. The first fixing block 16 is sleeved on the outside of the second plug rod 17, and the first fixing block 16 is slidably connected to the second plug rod 17. The second plug rod 17 is a round rod design.
[0032] During operation, pull the dust box 14 upwards, causing the first fixing block 16 to move upwards along the outside of the second insert rod 17 until it is completely disengaged.
[0033] Furthermore, on the left and right sides of the main body 1 of the distribution box, near the front, there are also sleeve rods 18 welded together. Inside the sleeve rods 18, there is a movable rod 20, and the sleeve rods 18 are slidably connected to the movable rod 20. Inside the sleeve rods 18, one end of the second return spring 19 is welded together, and the other end of the second return spring 19 is welded together to the movable rod 20. The movable rod 20 is a circular rod design.
[0034] During operation, the second movable pull plate 21 on the side of the main body 1 of the distribution box is pulled outward, which causes the movable rod 20 to move outward along the inside of the sleeve rod 18. When the sleeve rod 18 moves, it causes the second return spring 19 to extend.
[0035] Furthermore, a second movable pull plate 21 is welded to the side of the movable rod 20, and a third insertion rod 22 is welded to the side of the second movable pull plate 21. Dustproof plates 23 are also provided on the left and right sides of the main body 1 of the distribution box. The third insertion rod 22 is inserted into the dustproof plate 23 and is slidably connected to the dustproof plate 23. The third insertion rod 22 is a round rod design. The upper and lower ends of the left and right sides of the main body 1 of the distribution box are also welded together with a second fixing block 24. The dustproof plate 23 is inserted into the second fixing block 24 and is slidably connected to the second fixing block 24. The dustproof plate 23 is a square design.
[0036] During operation, the second movable pull plate 21 moves, causing the third insert rod 22 to move outward along the inside of the dustproof plate 23 until it is completely detached from the inside of the dustproof plate 23. Then, the dustproof plate 23 is pulled outward, causing it to move outward along the inside of the second fixed block 24 until it is completely detached from the inside of the second fixed block 24.
[0037] Furthermore, a fixing plate 25 is welded together inside the main body 1 of the distribution box near the upper position. A motor 26 is welded together at the bottom of the fixing plate 25. A fan 27 is fixedly connected to the bottom of the motor 26. A shielding box 28 is sleeved on the outside of the fan 27. A fixing plate 25 is welded together at the top of the shielding box 28.
[0038] When in operation, the motor 26 at the bottom of the fixed plate 25 starts, driving the fan 27 to rotate, and the shield box 28 on the outside of the fan 27 can play a protective role to prevent contact with the staff.
[0039] Working principle: When dismantling is required, firstly, pull the first movable pull plates 12 on both the left and right sides above the main body 1 of the distribution box upwards simultaneously. When the first movable pull plates 12 are pulled upwards, one end of the first movable pull plates 12 moves upwards along the inside of the rotating block 11, simultaneously pulling the first return spring 13 to extend. As the first movable pull plates 12 move upwards, the first insertion rod 15 moves upwards along the inside of the first fixing block 16 on the side of the dustproof box 14 until it is completely disengaged from the first fixing block 16. Then, flip the first movable pull plates 12 outwards, causing the rotating block 11 to rotate outwards along the outside of the fixing seat 10 and open. Finally, pull the dustproof box 14 upwards, causing the first fixing block 16 to move upwards along the outside of the second insertion rod 17. Once completely detached, pull the second movable pull plate 21 on the side of the main body 1 of the distribution box outward, causing the movable rod 20 to move outward along the inside of the sleeve rod 18. When the sleeve rod 18 moves, it causes the second return spring 19 to extend. At the same time, when the second movable pull plate 21 moves, it causes the third insertion rod 22 to move outward along the inside of the dustproof plate 23 until it is completely detached from the inside of the dustproof plate 23. Then pull the dustproof plate 23 outward, causing it to move outward along the inside of the second fixing block 24 until it is completely detached from the inside of the second fixing block 24. Start the motor 26 at the bottom of the fixing plate 25 to drive the fan 27 to rotate. The shield box 28 on the outside of the fan 27 can play a protective role to prevent contact with personnel.
[0040] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.
Claims
1. A heat dissipation structure for a distribution box, comprising a distribution box body (1); characterized in that: The main body (1) of the distribution box is hinged to a door (2) on the left side, and the main body (1) of the distribution box is provided with a removable heat dissipation mechanism inside and outside; The removable heat dissipation mechanism includes a dustproof box (14), which is located at the middle of the top of the main body (1) of the distribution box. The top left and right sides of the main body (1) of the distribution box are also fixedly connected to fixed seats (10). A rotating block (11) is sleeved on the outside of the fixed seat (10), and the fixed seat (10) is rotatably connected to the rotating block (11). A first movable pull plate (12) is inserted inside the rotating block (11), and the rotating block (11) is slidably connected to the first movable pull plate (12). The front and rear ends of the rotating block (11) are also fixedly connected to a first return spring (13), and the top of the first return spring (13) is fixedly connected to the first movable pull plate (12).
2. The heat dissipation structure of a distribution box according to claim 1, characterized in that: The bottom end of the first movable pull plate (12) is fixedly connected to the first insert rod (15), and the left and right sides of the dust box (14) are also fixedly connected to the first fixing block (16). The bottom end of the first insert rod (15) is inserted into the first fixing block (16), and the first insert rod (15) is slidably connected to the first fixing block (16).
3. The heat dissipation structure of a distribution box according to claim 2, characterized in that: The top of the main body (1) of the distribution box is also fixedly connected to the left and right sides of the dust box (14). The first fixing block (16) is sleeved on the outside of the second plug (17), and the first fixing block (16) is slidably connected to the second plug (17).
4. The heat dissipation structure of a distribution box according to claim 3, characterized in that: The main body (1) of the power distribution box is also fixedly connected to the sleeve rod (18) on the left and right sides near the front position. The sleeve rod (18) is fitted with a movable rod (20), and the sleeve rod (18) is slidably connected to the movable rod (20). One end of the second return spring (19) is fixedly connected inside the sleeve rod (18), and the other end of the second return spring (19) is fixedly connected to the movable rod (20).
5. The heat dissipation structure of a distribution box according to claim 4, characterized in that: The moving rod (20) is fixedly connected to a second moving pull plate (21) on its side end. The second moving pull plate (21) is fixedly connected to a third insert rod (22) on its side end. Dustproof plates (23) are also provided on the left and right sides of the main body of the distribution box (1). The third insert rod (22) is inserted into the dustproof plate (23) and is slidably connected to the dustproof plate (23). The upper and lower ends of the left and right sides of the main body of the distribution box (1) are also fixedly connected to second fixing blocks (24). The dustproof plate (23) is inserted into the second fixing block (24) and is slidably connected to the second fixing block (24).
6. The heat dissipation structure of a distribution box according to claim 5, characterized in that: A fixing plate (25) is fixedly connected inside the main body (1) of the distribution box near the top. A motor (26) is fixedly connected to the bottom of the fixing plate (25). A fan (27) is fixedly connected to the bottom of the motor (26). A shielding box (28) is fitted on the outside of the fan (27). A fixing plate (25) is fixedly connected to the top of the shielding box (28).
Citation Information
Patent Citations
Heat dissipation structure of distribution box
CN222563348U