Heat dissipation system of distribution box

Abstract

The utility model relates to the technical field of power distribution boxes, in particular to a heat dissipation system of a power distribution box, which comprises a power distribution cabinet body, mesh heat dissipation grooves for heat dissipation are arranged at the upper end and the lower end of two sides of the inner wall of the power distribution cabinet body, and an active heat dissipation component is arranged at the rear end of the outer wall of the power distribution cabinet body and comprises an air inlet box. The air inlet box is installed on the rear side of the outer wall of the power distribution cabinet body, and a dehumidification box is arranged on the rear side of the outer wall of the power distribution cabinet body and located above the air inlet box. The air is firstly conveyed into the dehumidification tank to be dehumidified, so that a large amount of wet air is prevented from directly entering the power distribution cabinet body to damage electrical components, and the power distribution cabinet is more convenient for personnel to use.

Description

Technical Field

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

[0002] A distribution box is a device used in a power system, primarily for receiving, distributing, and protecting electrical energy. It typically consists of electrical components and a housing, and is an important part of the power distribution network.

[0003] Existing highly integrated distribution boxes, due to the high integration and dense placement of internal power distribution components, tend to generate more heat in high-temperature environments during summer, leading to excessively high internal temperatures. To address this, cooling fans or ventilation holes are often added to enhance heat dissipation. However, in rainy and humid environments, moisture can enter the distribution box, affecting the internal electronic components and impacting their operational stability, thus presenting certain shortcomings.

[0004] In conclusion, it is necessary to invent a heat dissipation system for electrical distribution boxes. Utility Model Content

[0005] Therefore, this utility model provides a heat dissipation system for a distribution box to solve the problem that in some rainy and humid environments, moisture can enter the distribution box, which can affect the electronic components inside the distribution box and thus affect its operational stability.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a heat dissipation system for a distribution box, including a distribution cabinet, wherein the upper and lower ends of both sides of the inner wall of the distribution cabinet are provided with perforated heat dissipation slots for heat dissipation, and an active heat dissipation component is provided at the rear end of the outer wall of the distribution cabinet.

[0007] The active heat dissipation component includes an air inlet box, which is installed on the rear side of the outer wall of the power distribution cabinet. A dehumidification box is provided on the rear side of the outer wall of the power distribution cabinet and above the air inlet box. The air inlet box and the dehumidification box are connected by a pipe.

[0008] Preferably, both sides of the inner wall of the power distribution cabinet are fixed with electrical component mounting racks for installing electrical components, and multiple electrical component mounting racks are evenly arranged in an array. The rear end of the outer wall of the air inlet box is provided with an air inlet for air intake.

[0009] Preferably, the air inlet box is provided with composite filter plates for filtration on the side away from the power distribution cabinet. The outer walls of the composite filter plates are fixed with protective frames. The top of the inner wall of the air inlet box is provided with a slot for placing the fixed frame. The outer wall of the fixed frame is slidably connected to the inner wall of the slot.

[0010] Preferably, the top of the outer wall of the fixed frame is fixed with a limiting plate for easy lifting by personnel, the inner wall of the slot is fixed with a sealing rubber gasket, and a dust pump is fixedly installed on the top of the outer wall of the air inlet box and on the side of the composite filter plate near the power distribution cabinet.

[0011] Preferably, hollow plates are fixed to the upper and lower ends of the rear side of the inner wall of the power distribution cabinet, and air jet plates are fixedly connected to the opposite side of the two hollow plates. Multiple air jet plates are evenly arranged in a strip array, and air jet holes for air outlet are opened at the front end of the outer wall of each air jet plate.

[0012] Preferably, the air outlet of the dust pump is fixedly connected to the rear side of the inner wall of the hollow plate at the bottom through the bottom air inlet pipe, and the top of the outer wall of the bottom air inlet pipe is fixedly connected to the air supply branch pipe through the T-pipe. The upper and lower ends of the inner wall of the dehumidification box are fixed with air distribution plates, and the upper end of the air supply branch pipe is connected to the bottom end of the inner wall of the air distribution plate at the bottom.

[0013] Preferably, each of the upper and lower air distribution plates is fixedly connected to a dehumidification tank on one side of the opposite side. The inner wall of each dehumidification tank is fixedly provided with a dehumidification filter layer for filtering air moisture. The top dehumidification box is fixedly connected to the rear side of the inner wall of the upper hollow plate through a top air inlet pipe.

[0014] Preferably, the dehumidifier has a three-section structure, and the upper and lower ends of the outer wall of the dehumidifier filter layer are threaded with threaded rings. The upper and lower ends of the dehumidifier and the corresponding positions of the dehumidifier filter layer are provided with external threads. The threaded rings are fixedly connected to the upper and lower ends of the dehumidifier through the external threads.

[0015] The beneficial effects of this utility model are:

[0016] In this invention, personnel can control whether air needs to enter the dehumidification box for dehumidification based on the environment in which the power distribution cabinet is located. In a humid environment, by first delivering the air to the dehumidification tank for dehumidification, the humid air is prevented from directly entering the power distribution cabinet in large quantities and causing damage to the electrical components, thus making it more convenient for personnel to use. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural diagram of the present invention from a side view.

[0018] Figure 2This is a partial cross-sectional view of the present invention from the side view direction;

[0019] Figure 3 This is a partial cross-sectional view of the present invention from the front view.

[0020] Figure 4 This is a cross-sectional view of the air inlet box in this utility model from the side.

[0021] Figure 5 This is a cross-sectional view of the dehumidification box in this utility model from the rear view.

[0022] In the diagram: 100, power distribution cabinet; 110, perforated heat dissipation groove; 120, electrical accessory mounting rack; 200, hollow board; 210, air jet plate; 211, air jet hole; 300, air inlet box; 301, composite filter plate; 302, fixing frame; 303, limiting plate; 310, dust pump; 311, bottom air inlet pipe; 312, air supply branch pipe; 320, dehumidification box; 321, air distribution plate; 322, dehumidification tank; 323, dehumidification filter layer. Detailed Implementation

[0023] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are for illustration and explanation only and are not intended to limit the present invention.

[0024] See attached document Figures 1-5This utility model provides a heat dissipation system for a distribution box, including a distribution cabinet 100. The upper and lower ends of both sides of the inner wall of the distribution cabinet 100 are provided with perforated heat dissipation grooves 110 for heat dissipation. Moisture-proof sealing strips can be fixed to the inner walls of the perforated heat dissipation grooves 110 to reduce moisture passage. Electrical component mounting brackets 120 for installing electrical components are fixed to both sides of the inner wall of the distribution cabinet 100. Multiple electrical component mounting brackets 120 are evenly arranged in an array. The rear end of the outer wall of the air inlet box 300 is provided with an air intake opening. An active heat dissipation component is installed at the rear of the outer wall of the distribution cabinet 100, including an air inlet vent. The air inlet vent 300 is installed on the rear side of the outer wall of the distribution cabinet 100. Inside the air inlet vent 300, on the side furthest from the distribution cabinet 100, are composite filter plates 301. These composite filter plates 301 can be composed of multiple filter plates, such as air filter plates, activated carbon plates, and filter cotton plates. They primarily filter dust from the passing air. The outer walls of the multiple composite filter plates 301 are fixed with... The protective fixing frame 302 and the top of the inner wall of the air inlet box 300 are both provided with slots for placing the fixing frame 302. The outer wall of the fixing frame 302 is slidably connected to the inner wall of the slot. The fixed fixing frame 302 is used to protect the outer wall of the composite filter plate 301 and facilitate personnel to insert the composite filter plate 301 into the air inlet box 300 through the slot so that it can filter the air. The top of the outer wall of the fixing frame 302 is fixed with a limiting plate 303 for easy lifting by personnel. The plate 303 is for easy sliding of the fixed frame 302 in the slot. The inner wall of the slot is fixed with sealing rubber gaskets for sealing. The sealing rubber gaskets are set to improve the sealing effect between the fixed frame 302 and the slot. The top of the outer wall of the air inlet box 300 and the side of the composite filter plate 301 near the power distribution cabinet 100 are fixedly installed with dust pumps 310. The dust pumps 310 are mainly used to draw in the outside air and deliver it into the power distribution cabinet 100 to dissipate heat from the components when heat dissipation is required.

[0025] A dehumidification box 320 is installed on the rear side of the outer wall of the distribution cabinet 100, above the air inlet box 300. The air inlet box 300 and the dehumidification box 320 are connected by a pipe. Hollow plates 200 are fixed at the upper and lower ends of the rear inner wall of the distribution cabinet 100. Air jet plates 210 are fixedly connected to opposite sides of the two hollow plates 200. Multiple air jet plates 210 are evenly arranged in a strip array. Air jet holes 211 are opened at the front end of the outer wall of each air jet plate 210. The two hollow plates 200 are mainly used to blow air out through the air jet plates 210 and air jet holes 211 to cool the electrical components installed on the electrical component mounting rack 120. One-way valves can be installed at the upper and lower ends of the air jet plates 210. To prevent air from entering the air jet plate 210 and then the hollow plate 200 at the other end, heat dissipation is improved by accelerating airflow. The exhaust end of the dust pump 310 is fixedly connected to the rear inner wall of the bottom hollow plate 200 via the bottom air inlet pipe 311. When the distribution cabinet is in a dry environment, dehumidification is unnecessary; filtered air can then enter the air jet plate 210 through the bottom hollow plate 200 and be ejected. The top of the outer wall of the bottom air inlet pipe 311 is fixedly connected to an air supply branch pipe 312 via a T-junction. The air supply branch pipe 312 is designed to deliver humid air to the dehumidification box 320 for dehumidification in humid environments. The bottom air inlet pipe 311 and the air supply branch pipe 312... Both of the above require solenoid valves to guide airflow. Air distribution plates 321 are fixed to the upper and lower ends of the inner wall of the dehumidification box 320. The upper end of the air supply branch pipe 312 is connected to the bottom end of the inner wall of the bottom air distribution plate 321. Dehumidification tanks 322 are fixedly connected to opposite sides of the upper and lower air distribution plates 321. A dehumidification filter layer 323 is fixedly installed on the inner wall of each dehumidification tank 322 to filter air moisture. The top dehumidification box 320 is fixedly connected to the rear side of the inner wall of the upper hollow plate 200 via a top air inlet pipe. The dehumidification tank 322 has a three-section structure. This three-section structure is designed to facilitate the removal of the middle section after prolonged use of the dehumidification tank 322, allowing for the disassembly and replacement of the internally fixed dehumidification filter layer 323. The dehumidifying filter layer 323 can be detachably fixed to the inner wall of the intermediate dehumidifying tank 322 using bolts or other methods. The dehumidifying filter layer 323 can be made of water-absorbing resin combined with activated carbon board or diatomaceous earth board. All three can dehumidify the passing air. The upper and lower ends of the outer wall of the dehumidifying filter layer 323 are threaded with threaded rings. The upper and lower ends of the dehumidifying tank 322, and the corresponding positions of the dehumidifying filter layer 323, are provided with external threads. The threaded rings are fixedly connected to the upper and lower ends of the dehumidifying tank 322 through the external threads. The three dehumidifying tanks 322 are connected and fixed by external threads on the outer walls of opposite sides, and then by threaded rings between the external threads. The inner wall of the threaded rings can be provided with rubber gaskets to improve the sealing effect.The rear end of the outer wall of the dehumidification chamber 320 can be bolted to a removable sealing plate, facilitating future maintenance and replacement of the dehumidification tank 322.

[0026] The usage process of this utility model is as follows: Technicians in the field can first assemble the device according to the above description, then connect all electrical equipment to an external power supply, and control the operation of the device through an external controller. When the distribution cabinet is working in a high-temperature environment, the controller can detect the temperature data inside and outside the distribution cabinet through the temperature sensor installed on the distribution cabinet. If the value is higher than its preset value, the dust pump 310 can be powered on and started, allowing outside air to enter the air inlet box 300. The composite filter plate 301 can filter dust and impurities in the air and open the solenoid valve on the bottom air inlet pipe 311, and then close the solenoid valve on the air supply branch pipe 312. The filtered air can be delivered by the dust pump 310 through the bottom air inlet pipe 311 to the bottom hollow plate 200. At this time, the bottom hollow plate 200 will spray air into the distribution cabinet 100 through the air jet plate 210 and air jet hole 211 to accelerate the air flow at the electrical components, thereby improving the heat dissipation and cooling effect.

[0027] If the power distribution cabinet is in a humid environment, the controller can obtain humidity data through the humidity sensor that is set in advance on the power distribution cabinet. Then, when dissipating heat, it will open the solenoid valve on the air supply branch pipe 312 and close the solenoid valve on the bottom air inlet pipe 311. In this way, the air drawn by the dust pump 310 will enter the bottom air distribution plate 321 through the air supply branch pipe 312, and the bottom air distribution plate 321 will deliver the air to the dehumidification tank 322. The dehumidification tank 322 can filter and dehumidify the moisture in the air through the built-in dehumidification filter layer 323. The dehumidified air will enter the upper hollow plate 200 through the top air distribution plate 321 and the top air inlet pipe, and will be sprayed out by the upper hollow plate 200 through the jet plate 210 and the jet hole 211 to dehumidify the air.

[0028] After the power distribution cabinet has been used for a period of time, personnel can take out the composite filter plate 301 and remove the dehumidification filter layer 323 in sequence for replacement.

[0029] The above description is merely a preferred embodiment of this utility model. Any person skilled in the art may modify this utility model or modify it into an equivalent technical solution using the technical solutions described above. Therefore, any simple modifications or equivalent substitutions made based on the technical solutions of this utility model are within the scope of protection claimed by this utility model.

Claims

1. A heat dissipation system for a distribution box, characterized in that: Including power distribution cabinet body (100), the inner wall both sides of the power distribution cabinet body (100) are provided with mesh heat dissipation grooves (110) on the upper and lower ends for heat dissipation, and the outer wall rear end of the power distribution cabinet body (100) is provided with a forced cooling component; The forced cooling component includes an air inlet box (300), the air inlet box (300) is installed on the outer wall rear side of the power distribution cabinet body (100), the outer wall rear side of the power distribution cabinet body (100) and above the air inlet box (300) is provided with a dehumidification box (320), and the air inlet box (300) and the dehumidification box (320) are communicated through a pipeline.

2. The heat dissipation system of an electrical distribution box according to claim 1, wherein: The inner wall both sides of the power distribution cabinet body (100) are fixed with electrical accessory mounting racks (120) for mounting electrical accessories, and a plurality of the electrical accessory mounting racks (120) are uniformly arranged in an array manner, and the outer wall rear end of the air inlet box (300) is provided with air inlet mesh openings for air inlet.

3. The heat dissipation system of an electrical distribution box according to claim 2, wherein: The inner side of the air inlet box (300) and away from the power distribution cabinet body (100) is provided with composite filter plates (301) for filtration, the outer wall of a plurality of the composite filter plates (301) is fixed with fixed frames (302) for protection, the inner wall top end of the air inlet box (300) is provided with insertion grooves for placing the fixed frames (302), and the outer wall of the fixed frame (302) is in sliding connection with the inner wall of the insertion groove.

4. The heat dissipation system of an electrical distribution box according to claim 3, wherein: The outer wall top end of the fixed frame (302) is fixed with limiting plates (303) for facilitating personnel to pull, the inner wall side end of the insertion groove is fixed with sealing rubber pads for sealing, and the outer wall top end of the air inlet box (300) and on the side close to the power distribution cabinet body (100) is fixedly installed with dust suction pumps (310).

5. The heat dissipation system of an electrical distribution box according to claim 4, wherein: The inner wall rear side of the power distribution cabinet body (100) is fixed with hollow plates (200) on the upper and lower ends, the opposite side of the two hollow plates (200) is fixedly communicated with air injection plates (210), a plurality of the air injection plates (210) are uniformly arranged in a strip array manner, and the outer wall front end of the air injection plate (210) is provided with air injection holes (211) for air outlet.

6. The heat dissipation system of an electrical distribution box according to claim 5, wherein: The air outlet end of the dust suction pump (310) is fixedly communicated with the inner wall rear side of the bottom end hollow plate (200) through a bottom air inlet pipe (311), the outer wall top end of the bottom air inlet pipe (311) is fixedly communicated with a gas conveying branch pipe (312) through a tee pipe, the inner wall upper and lower ends of the dehumidification box (320) are fixed with gas distribution plates (321), and the upper end of the gas conveying branch pipe (312) is communicated with the inner wall bottom end of the bottom end gas distribution plate (321).

7. The heat dissipation system of an electrical distribution box according to claim 6, wherein: The opposite side of the upper and lower gas distribution plates (321) is fixedly communicated with dehumidification tanks (322), the inner wall of the dehumidification tank (322) is fixed with dehumidification filter layers (323) for filtering air humidity, and the top end dehumidification box (320) is fixedly communicated with the inner wall rear side of the upper end hollow plate (200) through a top air inlet pipe.

8. The heat dissipation system of an electrical distribution box according to claim 7, wherein: The dehumidification tank (322) is of three-section structure, outer walls of the dehumidification filter layer (323) are threadedly connected with threaded rings at upper and lower ends, outer threads are formed at upper and lower ends of the dehumidification tank (322) and corresponding positions of the dehumidification filter layer (323), and the threaded rings are fixedly connected with the upper and lower ends of the dehumidification tank (322) through the formed outer threads.

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