Dust removal structure of low-voltage switch cabinet
By introducing components such as heat dissipation boxes, water tanks, circulation pipes, and static ion fans into low-voltage switchgear, cooling and dust removal are achieved, solving the problems of heat and dust in low-voltage switchgear and ensuring the normal operation of the equipment.
Patent Information
- Application Number
- CN202520117634.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-18
- Publication Date
- 2026-02-10
- Estimated Expiration
- 2035-01-18
AI Technical Summary
Low-voltage switchgear generates a lot of heat during use, causing the temperature inside the cabinet to rise, and dust can easily enter, affecting the normal use of electrical equipment.
A dust removal structure for a low-voltage switchgear was designed. It achieves cooling and dust removal through components such as a heat sink, water tank, circulation pipe, static eliminator ion fan, and semiconductor cooling chip. It uses the exchange of cooling water and cold air to reduce the temperature and filter dust.
It effectively reduces the internal temperature of the low-voltage switchgear, prevents dust from entering, and ensures the normal operation of electrical equipment.
Smart Images

Figure CN223898827U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of dust removal technology for low-voltage switchgear, and specifically to a dust removal structure for low-voltage switchgear. Background Technology
[0002] Low-voltage switchgear is a type of equipment used in power systems, primarily in low-voltage power distribution sections, and is typically installed in distribution rooms. It consists of terminal blocks, various disconnectors, protective devices (such as air switches and fuses), measuring devices (such as voltmeters and ammeters), and metering devices (such as wattmeters). Low-voltage switchgear can be divided into two types: drawer-type and fixed-type. Drawer-type switchgear allows for flexible assembly of electrical components into distribution panels, facilitating maintenance and repair. Low-voltage switchgear plays a crucial role in power systems, including the rational configuration of power supplies, control of fault range, ease of line maintenance, and placement of various protective devices.
[0003] In existing low-voltage switchgear, a large amount of heat is generated during use, causing the temperature inside the cabinet to rise. Ventilation vents and heat dissipation holes are usually installed to remove the heat by natural air convection. At the same time, dust can easily enter the cabinet, and the accumulation of dust over a long period of time is not conducive to the normal use of electrical equipment. Utility Model Content
[0004] To address the problems mentioned in the background section, this invention provides a dust removal structure for low-voltage switchgear.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a dust removal structure for a low-voltage switchgear, comprising a low-voltage switchgear body, a heat dissipation box installed on the lower surface of the low-voltage switchgear body, a heat dissipation vent on the right side of the low-voltage switchgear body, two air inlets on the front and back of the inner wall of the heat dissipation box, a water tank installed on the lower surface of the inner wall of the heat dissipation box, a fixing frame fixedly connected to the upper surface of the water tank, the left and right sides of the inner wall of the fixing frame being fixedly connected to the left and right sides of the circulation pipe, a temperature conducting box installed on the right side of the water tank, and an anti-static ion fan installed on the upper surface of the water tank.
[0006] Preferably, the heat sink is fixedly connected to both the front and back of the heat sink, and a dustproof net a is installed on the inner wall of the mounting bracket.
[0007] Preferably, a water pump is installed on the lower surface of the inner wall of the water tank, and the discharge end of the water pump is connected to one end of the circulation pipe through a drain pipe, while the other end of the circulation pipe is connected to the upper surface of the water tank.
[0008] Preferably, a semiconductor cooling chip is installed on the left side of the inner wall of the temperature conducting box, and a cooling fan is installed on the heat dissipation end of the semiconductor cooling chip.
[0009] Preferably, a dustproof mesh b is bolted to the inner wall of the heat dissipation vent.
[0010] Preferably, a protective cover is installed on the right side of the low-voltage switchgear body, and the left side of the protective cover is bolted to the right side of the low-voltage switchgear body. The position of the protective cover corresponds to the position of the heat dissipation vent.
[0011] Compared with the prior art, the beneficial effects of this utility model are:
[0012] This invention utilizes a water pump to draw cooling water from a water tank and discharge it into a circulation pipe through a drain pipe. The cooling water in the circulation pipe cools the air inside the low-voltage switchgear. An anti-static ion fan draws in external air and discharges it into the circulation pipe. The cooling water in the circulation pipe exchanges heat with the air, and the cold air rushes into the low-voltage switchgear to dissipate heat from the hot air inside the switchgear. This solves the problem of dust easily entering the cabinet and accumulating over time, which is detrimental to the normal operation of electrical equipment. Attached Figure Description
[0013] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:
[0014] Figure 1 This is a schematic diagram of the structure of this utility model;
[0015] Figure 2 This is a schematic diagram of the internal structure of the heat sink in this utility model;
[0016] Figure 3 This is a schematic diagram of the internal structure of the protective cover in this utility model;
[0017] In the diagram: 1. Low-voltage switchgear body; 2. Heat sink; 3. Mounting bracket; 4. Dustproof net a; 5. Heat dissipation vent; 6. Dustproof net b; 7. Protective cover; 8. Air inlet; 9. Water tank; 10. Water pump; 11. Drain pipe; 12. Circulation pipe; 13. Static ionizing fan; 14. Fixing bracket; 15. Temperature conducting box; 16. Semiconductor cooling chip; 17. Cooling fan. Detailed Implementation
[0018] 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.
[0019] Example
[0020] Please see Figures 1-3 This utility model provides the following technical solution: a dust removal structure for a low-voltage switchgear, including a low-voltage switchgear body 1, a heat dissipation box 2 installed on the lower surface of the low-voltage switchgear body 1, a heat dissipation vent 5 opened on the right side of the low-voltage switchgear body 1, two air inlets 8 opened on the front and back of the inner wall of the heat dissipation box 2, a water tank 9 installed on the lower surface of the inner wall of the heat dissipation box 2, a fixing frame 14 fixedly connected to the upper surface of the water tank 9, the left and right sides of the inner wall of the fixing frame 14 being fixedly connected to the left and right sides of the circulation pipe 12, a temperature conducting box 15 installed on the right side of the water tank 9, and an anti-static ion fan 13 installed on the upper surface of the water tank 9.
[0021] Specifically, mounting brackets 3 are fixed to both the front and back of the heat sink 2, and a dustproof net a4 is installed on the inner wall of the mounting bracket 3;
[0022] The static ion fan 13 draws in external air through the air inlet 8 and discharges it into the low-voltage switch cabinet body 1 through the exhaust end. The dust contained in the external air is filtered by the dustproof net a4.
[0023] Specifically, a water pump 10 is installed on the lower surface of the inner wall of the water tank 9. The discharge end of the water pump 10 is connected to one end of the circulation pipe 12 through the drain pipe 11, and the other end of the circulation pipe 12 is connected to the upper surface of the water tank 9.
[0024] The water pump 10 draws cooling water from the water tank 9 and discharges it into the circulation pipe 12 through the drain pipe 11. The cooling water in the circulation pipe 12 cools the air inside the low-voltage switchgear body 1.
[0025] The static ion fan 13 draws in external air and discharges it into the circulation pipe 12. The cooling water in the circulation pipe 12 exchanges heat with the air, and the cold air rushes into the low-voltage switchgear body 1 to dissipate heat from the hot air inside the low-voltage switchgear body 1.
[0026] Specifically, a semiconductor cooling chip 16 is installed on the left side of the inner wall of the temperature conducting box 15, and a cooling fan 17 is installed on the heat dissipation end of the semiconductor cooling chip 16.
[0027] The thermoelectric cooler 16 cools the temperature-conducting chamber 15, which then transfers the low temperature to the inside of the water tank 9. The cooling fan 17 dissipates heat from the thermoelectric cooler 16.
[0028] Specifically, a dustproof mesh b6 is bolted to the inner wall of the heat dissipation port 5;
[0029] The cold air rushing into the low-voltage switchgear body 1 is discharged into the protective cover 7 through the heat dissipation vent 5, and then discharged to the outside of the low-voltage switchgear body 1 through the bottom of the protective cover 7. The dustproof net b6 filters the impurities contained in the air to prevent dust from entering the low-voltage switchgear body 1 through the heat dissipation vent 5.
[0030] Specifically, a protective cover 7 is installed on the right side of the low-voltage switchgear body 1, and the left side of the protective cover 7 is bolted to the right side of the low-voltage switchgear body 1. The position of the protective cover 7 corresponds to the position of the heat dissipation vent 5.
[0031] The heat dissipation port 5 is protected by the protective cover 7.
[0032] Working principle and usage process of this utility model:
[0033] This utility model, when in use:
[0034] The semiconductor cooling chip 16 cools the temperature-conducting box 15, which transfers low temperature to the water tank 9. The water pump 10 draws cooling water from the water tank 9 and discharges it into the circulation pipe 12 through the drain pipe 11. The cooling water in the circulation pipe 12 cools the air inside the low-voltage switchgear body 1. The static ion fan 13 draws external air and discharges it into the circulation pipe 12. The cooling water in the circulation pipe 12 exchanges heat with the air, and the cold air rushes into the low-voltage switchgear body 1 to dissipate heat from the hot air inside the low-voltage switchgear body 1. The cold air rushing into the low-voltage switchgear body 1 is discharged into the protective cover 7 through the heat dissipation port 5 and then discharged to the outside of the low-voltage switchgear body 1 through the bottom of the protective cover 7. The dustproof net b6 filters impurities in the air to prevent dust from entering the low-voltage switchgear body 1 through the heat dissipation port 5.
[0035] The circuits, electronic components, and modules involved are all existing technologies, which can be fully implemented by those skilled in the art, and need not be elaborated upon. The content protected by this utility model does not involve any improvement to the software and methods.
[0036] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the 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 this utility model should be included within the protection scope of this utility model.
Claims
1. A dust removal structure for a low-voltage switchgear, comprising a low-voltage switchgear body (1), characterized in that: A heat dissipation box (2) is installed on the lower surface of the low-voltage switch cabinet body (1). A heat dissipation vent (5) is opened on the right side of the low-voltage switch cabinet body (1). Two air inlets (8) are opened on the front and back of the inner wall of the heat dissipation box (2). A water tank (9) is installed on the lower surface of the inner wall of the heat dissipation box (2). A fixing bracket (14) is fixedly connected to the upper surface of the water tank (9). The left and right sides of the inner wall of the fixing bracket (14) are fixedly connected to the left and right sides of the circulation pipe (12). A temperature conducting box (15) is installed on the right side of the water tank (9). An anti-static ion fan (13) is installed on the upper surface of the water tank (9).
2. The dust removal structure for a low-voltage switchgear according to claim 1, characterized in that: The heat sink (2) is fixedly connected to the front and back of the mounting bracket (3), and the inner wall of the mounting bracket (3) is fitted with a dustproof net a (4).
3. The dust removal structure for a low-voltage switchgear according to claim 1, characterized in that: A water pump (10) is installed on the lower surface of the inner wall of the water tank (9). The discharge end of the water pump (10) is connected to one end of the circulation pipe (12) through the drain pipe (11), and the other end of the circulation pipe (12) is connected to the upper surface of the water tank (9).
4. The dust removal structure for a low-voltage switchgear according to claim 1, characterized in that: A semiconductor cooling chip (16) is installed on the left side of the inner wall of the temperature conducting box (15), and a cooling fan (17) is installed on the heat dissipation end of the semiconductor cooling chip (16).
5. The dust removal structure for a low-voltage switchgear according to claim 1, characterized in that: A dustproof mesh b (6) is bolted to the inner wall of the heat dissipation port (5).
6. The dust removal structure for a low-voltage switchgear according to claim 1, characterized in that: A protective cover (7) is installed on the right side of the low-voltage switchgear body (1). The left side of the protective cover (7) is bolted to the right side of the low-voltage switchgear body (1). The position of the protective cover (7) corresponds to the position of the heat dissipation vent (5).