A distribution box heat dissipation structure

Abstract

This utility model relates to the field of power distribution box technology and discloses a heat dissipation structure for a power distribution box, including a box body. A heat dissipation vent is provided on the upper surface of the box body. A heat dissipation assembly is provided on the inner wall of the box body. A door is fixedly connected to one side of the outer wall of the box body. A connecting frame is fixedly connected to the inner wall of the door. An air inlet is provided on the inner wall of the connecting frame. The heat dissipation assembly includes heat dissipation fins. The outer wall of the heat dissipation fins is located inside the box body. A heat dissipation copper pipe is fixedly connected to the inner wall of the heat dissipation fins. A heat-conducting plate is fixedly connected to the outer wall of the heat dissipation copper pipe. A guide plate is provided above the heat dissipation fins. In this utility model, external air is drawn in by a second fan. Simultaneously, the heat-conducting plate directly absorbs the heat generated by the power distribution module. Then, guided by the guide plate, the hot air is quickly discharged outside the box through the heat dissipation vent, thereby achieving dual heat dissipation through direct heat conduction and forced convection, significantly improving heat dissipation efficiency and enhancing the practicality of the device.

Description

Technical Field

[0001] This utility model relates to the field of distribution box technology, and in particular to a heat dissipation structure for a distribution box. Background Technology

[0002] In power distribution scenarios such as industrial production and building construction, distribution boxes serve as the core devices for power distribution and control. They integrate various electrical components such as circuit breakers, contactors, and distribution modules. These components continuously generate heat during long-term operation. If the heat cannot be dissipated in time, the temperature inside the box will gradually rise, which will not only lead to the degradation of the performance of electrical components but may also cause safety hazards such as short circuits and aging. Therefore, designing an efficient and reliable heat dissipation structure for distribution boxes to ensure that the temperature rise inside the box is always within a safe and controllable range is of vital importance for ensuring the stable operation of the power distribution system and extending the service life of equipment.

[0003] In the existing technology, the heat dissipation of the distribution box mainly relies on a combination of passive heat dissipation and basic active heat dissipation. Passive heat dissipation uses the natural convection of air through heat dissipation holes or louvers to remove some heat, while active heat dissipation usually uses a single fan installed in a specific position in the box to directly exhaust the hot air inside the box to the outside.

[0004] However, in existing technologies, the heat dissipation efficiency is relatively limited. When the power distribution module operates under high load for a continuous period of time or the ambient temperature is too high, it is difficult to transfer and dissipate heat quickly and efficiently, which leads to heat accumulation inside the box, affecting its operational stability and service life. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a heat dissipation structure for a power distribution box, aiming to improve the problem that the heat dissipation efficiency of existing technologies is relatively limited. When the power distribution module is running under continuous high load or the ambient temperature is too high, it is difficult to transfer and dissipate heat in a timely manner, which leads to the accumulation of heat inside the box and affects the operational stability and service life of the power distribution module.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a heat dissipation structure for a distribution box, comprising a box body, a heat dissipation vent on the upper surface of the box body, a heat dissipation assembly on the inner wall of the box body, a door fixedly connected to one side of the outer wall of the box body, a connecting frame fixedly connected to the inner wall of the door, and an air inlet on the inner wall of the connecting frame.

[0007] The heat dissipation assembly includes heat dissipation fins, the outer wall of which is disposed inside the housing, a heat dissipation copper pipe is fixedly connected to the inner wall of which, a heat conduction plate is fixedly connected to the outer wall of which, and a flow guide plate is disposed above the heat dissipation fins, the outer wall of which is disposed inside the housing.

[0008] Furthermore, a power distribution module is provided on the inner wall of the box, the upper surface of the power distribution module is disposed on the lower surface of the heat conduction plate, and a handle is fixedly connected to one side of the outer wall of the box door.

[0009] Furthermore, a bracket is fixedly connected to the lower surface of the heat dissipation fins, and the outer wall of the bracket is fixedly connected to the inner wall of the casing.

[0010] Furthermore, a fan is fixedly connected to the inner wall of the guide plate, and the upper surface of the fan is positioned below the heat dissipation port.

[0011] Furthermore, the inner wall of the connecting frame is fixedly connected to the second fan, the first guide rail, and the second guide rail. The inner wall of the first guide rail is slidably connected to a frame, and the inner wall of the second guide rail is slidably connected to a slider.

[0012] Furthermore, a handle is fixedly connected to one side of the outer wall of the frame, and a filter screen is fixedly connected to the inner wall of the frame.

[0013] Furthermore, a second bracket is fixedly connected to one side of the slider, and one side of the outer wall of the second bracket is fixedly connected to one side of the outer wall of the frame.

[0014] Furthermore, a connecting rod is fixedly connected to one side of the outer wall of the second bracket, and a brush is fixedly connected to the lower surface of the connecting rod. The outer wall of the brush is set on the inner wall of the air inlet.

[0015] This utility model has the following beneficial effects:

[0016] 1. In this utility model, external air is drawn in from the air inlet on the side of the box door by the second fan. At the same time, the heat generated by the power distribution module is absorbed by the heat-conducting plate that is in direct contact with it, and then the heat is quickly conducted to the heat dissipation fins through the heat dissipation copper pipe. Subsequently, the first fan guides the hot air through the heat dissipation port to quickly exhaust the hot air outside the box, thereby achieving dual heat dissipation of direct heat conduction and forced convection, which significantly improves the heat dissipation efficiency, effectively protects the power distribution components inside the box from high temperature damage, and thus improves the practicality of the device.

[0017] 2. In this utility model, by pulling the second handle, the frame slides along the first guide rail, causing the filter screen to move out of the connecting frame. At the same time, the movement of the frame synchronously causes the second bracket and the slider to slide within the second guide rail, driving the connecting rod to drive the brush to scrape back and forth in the air inlet, automatically removing accumulated dust, thereby maintaining the ventilation efficiency of the filter screen, avoiding the reduction of air intake due to dust blockage and affecting the heat dissipation effect, and thus improving the practicality of the device. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural diagram of a heat dissipation structure for a distribution box proposed in this utility model;

[0019] Figure 2This is a schematic diagram of the box body structure of a power distribution box heat dissipation structure proposed in this utility model;

[0020] Figure 3 This is a schematic diagram of the heat dissipation fins of a power distribution box heat dissipation structure proposed in this utility model.

[0021] Figure 4 This is a schematic diagram of the connecting frame portion of a heat dissipation structure for a distribution box proposed in this utility model.

[0022] Figure 5 This is a schematic diagram of the filter part of a heat dissipation structure for a distribution box proposed in this utility model;

[0023] Figure 6 This is a schematic diagram of the two-part structure of the heat dissipation structure of the distribution box proposed in this utility model.

[0024] Legend:

[0025] 1. Cabinet; 2. Vent; 3. Door; 4. Handle 1; 5. Connecting frame; 6. Air inlet; 7. Power distribution module; 8. Heat dissipation fins; 9. Copper heat dissipation pipes; 10. Heat conduction plate; 11. Air guide plate; 12. Bracket 1; 13. Fan 1; 14. Fan 2; 15. Guide rail 1; 16. Frame; 17. Handle 2; 18. Filter screen; 19. Guide rail 2; 20. Slider; 21. Bracket 2; 22. Connecting rod; 23. Brush. Detailed Implementation

[0026] 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 protection scope of the present utility model.

[0027] Reference Figures 1-3This utility model provides an embodiment of a power distribution box heat dissipation structure, including a box body 1. The box body 1 is used to house the power distribution module 7, heat dissipation components, and all internal structures, providing an installation base and protective shell for each component, thereby preventing direct damage to the internal electrical components from the external environment. A heat dissipation vent 2 is provided on the upper surface of the box body 1 to expel hot air from inside the box body 1. Combined with the suction force of a fan 13, forced convection is formed, thereby quickly reducing the internal temperature of the box and preventing damage to the power distribution module 7 due to high temperature. A heat dissipation component is provided on the inner wall of the box body 1, and the power distribution module 7 is also installed on the inner wall. A door 3 is fixedly connected to one side of the outer wall of the box body 1, and a handle 4 is fixedly connected to one side of the outer wall of the door 3. A connecting frame 5 is fixedly connected to the inner wall of the door 3, and an air inlet 6 is provided on the inner wall of the connecting frame 5 to introduce external cold air into the box body 1. The heat dissipation component includes heat dissipation fins 8, which work with heat dissipation copper pipes 9 to diffuse heat. The heat dissipation area is increased through a multi-piece parallel structure, thereby accelerating the heat exchange between the air and the metal. The heat dissipation fins 8 are located inside the housing 1. A copper heat dissipation pipe 9 is fixedly connected to the inner wall of the heat dissipation fins 8. A bracket 12 is fixedly connected to the lower surface of the heat dissipation fins 8. The outer wall of the bracket 12 is fixedly connected to the inner wall of the housing 1. A heat-conducting plate 10 is fixedly connected to the outer wall of the copper heat dissipation pipe 9. The heat-conducting plate 10 directly contacts the surface of the power distribution module 7 and is used to absorb the heat generated by the electrical components. The heat is quickly transferred to the copper heat dissipation pipe 9 through heat conduction. The copper heat dissipation pipe 9 is made of a high thermal conductivity metal and its function is to transfer the heat from the heat-conducting plate 10 to the copper heat dissipation pipe 9. The heat is efficiently transferred to the heat dissipation fins 8, which is common knowledge and will not be elaborated on here. This reduces the operating temperature of the power distribution module 7. A guide plate 11 is set above the heat dissipation fins 8. The guide plate 11 works with the fan 13 to guide the airflow and concentrate the hot air to the heat dissipation port 2. This achieves the effect of improving the efficiency of hot air exhaust and avoiding airflow turbulence. The outer wall of the guide plate 11 is set on the inner wall of the housing 1. The fan 13 is fixedly connected to the inner wall of the guide plate 11. The upper surface of the fan 13 is set below the heat dissipation port 2.

[0028] Reference Figures 4-6Fan 2 14, guide rail 1 15, and guide rail 2 19 are fixedly connected to the inner wall of connecting frame 5. Frame 16 is slidably connected to the inner wall of guide rail 1 15. Guide rail 1 15 slides horizontally with frame 16. Filter 18 is moved out of connecting frame 5 by pulling handle 2 17, achieving quick disassembly, cleaning, or replacement of filter 18. Slider 20 is slidably connected to the inner wall of guide rail 2 19. Slider 20 moves synchronously with guide rail 2 19, driving bracket 2 21 and connecting rod 22 to move laterally, driving brush 23 to scrape the inner wall of air inlet 6, automatically removing accumulated dust, thus preventing airflow reduction due to blockage of air inlet 6. Handle 2 17 is fixedly connected to one side of the outer wall of frame 16. A filter screen 18 is fixedly connected to the inner wall of the frame 16. The filter screen 18 is used to filter dust and impurities in the air entering the housing 1, thereby preventing dust from adhering to the power distribution module 7 and heat dissipation components, affecting the heat dissipation effect and the life of electrical components. A bracket 21 is fixedly connected to the opposite side of the slider 20. One side of the outer wall of the bracket 21 is fixedly connected to one side of the outer wall of the frame 16. A connecting rod 22 is fixedly connected to one side of the outer wall of the bracket 21. A brush 23 is fixedly connected to the lower surface of the connecting rod 22. The brush 23 is used to scrape the dust off the inner wall of the air inlet 6 during the process of pulling the filter screen 18, so as to achieve convenient maintenance and thus ensure long-term ventilation efficiency. The outer wall of the brush 23 is set on the inner wall of the air inlet 6.

[0029] Working principle: When the distribution box is running, the distribution module 7 generates heat due to electrical work. First, by starting the fans 13 and 14, the fan 14 draws in outside air from the air inlet 6 on the side of the box door 3. The air enters the box 1 after being filtered by the filter screen 18 to remove dust and impurities. At the same time, the heat generated by the distribution module 7 is absorbed by the heat-conducting plate 10 in direct contact with it. The heat is transferred from the heat-conducting plate 10 to the heat dissipation copper pipe 9. Utilizing the high thermal conductivity of the heat dissipation copper pipe 9, the heat is quickly conducted to the densely distributed heat dissipation fins 8. The heat dissipation fins 8 are designed with multiple parallel fins to expand the heat dissipation area and accelerate the dissipation of heat to the surrounding air. Then, the fan 13 generates suction by rotating, and through the guiding action of the guide plate 11, the hot air is quickly discharged outside the box through the heat dissipation port 2. This achieves dual heat dissipation through direct heat conduction and forced convection, thereby significantly improving the heat dissipation efficiency and effectively protecting the power distribution components inside the box from high temperature damage.

[0030] Secondly, during long-term operation, dust may accumulate in the air inlet 6, affecting the airflow. At this time, the frame 16 can be pulled by the handle 17, causing the frame 16 to slide along the guide rail 15, which will move the filter 18 out of the connecting frame 5 for easy cleaning or replacement. At the same time, the movement of the frame 16 will drive the bracket 21 and the slider 20 to slide in the guide rail 19, driving the connecting rod 22 to drive the brush 23 to scrape back and forth in the air inlet 6, automatically removing the accumulated dust. After cleaning, push the frame 16 to reset, and the filter 18 will continue to filter the incoming air to ensure clean air intake, thereby maintaining the ventilation efficiency of the filter 18 and avoiding the reduction of air intake due to dust blockage, which would affect the heat dissipation effect, thus improving the reliability and durability of the equipment.

[0031] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A heat dissipation structure for a distribution box, comprising a box body (1), characterized in that: The upper surface of the box (1) is provided with a heat dissipation vent (2), the inner wall of the box (1) is provided with a heat dissipation component, a box door (3) is fixedly connected to one side of the outer wall of the box (1), a connecting frame (5) is fixedly connected to the inner wall of the box door (3), and an air inlet (6) is provided on the inner wall of the connecting frame (5). The heat dissipation assembly includes heat dissipation fins (8), the outer wall of which is disposed inside the housing (1), a heat dissipation copper pipe (9) is fixedly connected to the inner wall of the heat dissipation fins (8), a heat conduction plate (10) is fixedly connected to the outer wall of the heat dissipation copper pipe (9), a flow guide plate (11) is disposed above the heat dissipation fins (8), and the outer wall of the flow guide plate (11) is disposed on the inner wall of the housing (1).

2. The heat dissipation structure of a distribution box according to claim 1, characterized in that: The inner wall of the box (1) is provided with a power distribution module (7), the upper surface of the power distribution module (7) is provided on the lower surface of the heat conduction plate (10), and a handle (4) is fixedly connected to one side of the outer wall of the box door (3).

3. The heat dissipation structure of a distribution box according to claim 1, characterized in that: The lower surface of the heat dissipation fins (8) is fixedly connected to a bracket (12), and the outer wall of the bracket (12) is fixedly connected to the inner wall of the box (1).

4. The heat dissipation structure of a distribution box according to claim 1, characterized in that: The inner wall of the guide plate (11) is fixedly connected to a fan (13), and the upper surface of the fan (13) is located below the heat dissipation port (2).

5. The heat dissipation structure of a distribution box according to claim 1, characterized in that: The inner wall of the connecting frame (5) is fixedly connected to the second fan (14), the first guide rail (15) and the second guide rail (19). The inner wall of the first guide rail (15) is slidably connected to the frame (16), and the inner wall of the second guide rail (19) is slidably connected to the slider (20).

6. The heat dissipation structure of a distribution box according to claim 5, characterized in that: A handle (17) is fixedly connected to one side of the outer wall of the frame (16), and a filter screen (18) is fixedly connected to the inner wall of the frame (16).

7. The heat dissipation structure of a distribution box according to claim 5, characterized in that: The slider (20) is fixedly connected to a bracket (21) on one side, and the outer wall of the bracket (21) is fixedly connected to the outer wall of the frame (16).

8. The heat dissipation structure of a distribution box according to claim 7, characterized in that: A connecting rod (22) is fixedly connected to one side of the outer wall of the bracket (21), and a brush (23) is fixedly connected to the lower surface of the connecting rod (22). The outer wall of the brush (23) is set on the inner wall of the air inlet (6).

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