A heat dissipation device for an electrical control cabinet

Abstract

This utility model discloses a heat dissipation device for an electrical control cabinet, including a cabinet body. A cabinet door is rotatably installed at the front end of the cabinet body. A heat dissipation cylinder is fixedly installed on one side of the upper part of the cabinet body. A protective cover is fixedly installed above the heat dissipation cylinder. A non-powered fan cap is fixedly installed inside the protective cover. Ventilation openings are symmetrically arranged on both sides of the protective cover. A mesh plate is fixedly installed inside the ventilation openings of the protective cover. A fan cylinder is fixedly installed on the lower side of one side of the cabinet body. A fan is fixedly installed inside the fan cylinder. A filter box is fixedly installed on one side of the fan cylinder. This device achieves rapid natural heat dissipation, increases practicality, and solves the problem that during the operation of an electrical control cabinet, if the fan fails, heat will rapidly accumulate inside the cabinet, easily leading to overheating of the equipment and causing a decline in component performance.

Description

Technical Field

[0001] This utility model relates to the field of heat dissipation device technology, specifically a heat dissipation device for an electrical control cabinet. Background Technology

[0002] Electrical control cabinets are devices used in industrial and civil electrical systems for centralized control, protection, distribution and monitoring of electrical energy. They are used to start, stop, speed regulation and sequential control of equipment such as motors, pumps, and fans. They are widely used in automated production lines, building power distribution systems, new energy equipment and traffic signal control. They are key infrastructure to ensure the stable, efficient and safe operation of electrical systems. Electrical control cabinets need to be cooled during use. For example, the patent with announcement number CN204391562U (a heat dissipation device for an electrical control cabinet) includes an electrical cabinet, a component installation drawer set inside the electrical cabinet, an intake fan and an exhaust fan symmetrically set on both sides of the outside of the electrical cabinet, an air guide pipe set inside the electrical cabinet and connected to the intake fan and the exhaust fan respectively, and an air inlet hole evenly set on the air guide pipe. Although the existing technology mentioned above uses intake fans, exhaust fans and air guide pipes at both ends of the electrical cabinet to efficiently dissipate the heat generated inside the electrical cabinet, it does not have a rapid natural heat dissipation structure. As a result, if the fan fails during the operation of the electrical control cabinet, the heat inside the cabinet will accumulate rapidly, which can easily lead to overheating of the equipment, causing a decline in component performance and poor practicality. Therefore, the market urgently needs to develop a heat dissipation device for electrical control cabinets to help people solve the existing problems. Utility Model Content

[0003] The purpose of this utility model is to provide a heat dissipation device for electrical control cabinets, so as to solve the problem mentioned in the background art that if the fan fails during the operation of the electrical control cabinet, heat will accumulate rapidly inside the cabinet, which will easily lead to overheating of the equipment and cause a decline in the performance of the components.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a heat dissipation device for an electrical control cabinet, comprising a cabinet body, a cabinet door rotatably mounted on the front end of the cabinet body, a heat dissipation cylinder fixedly mounted on one side above the cabinet body, a protective cover fixedly mounted above the heat dissipation cylinder, a non-powered vent cap fixedly mounted inside the protective cover, ventilation openings symmetrically arranged on both sides of the protective cover, and a mesh plate fixedly mounted inside the ventilation openings of the protective cover.

[0005] Preferably, a fan tube is fixedly installed on the lower side of one side of the cabinet, a fan is fixedly installed inside the fan tube, a filter box is fixedly installed on one side of the fan tube, a filter plate is provided inside the filter box, and a protective grille is fixedly installed on one side of the filter box.

[0006] Preferably, a base box is fixedly installed below the filter box, and a dust collection groove is provided on one side of the filter plate inside the filter box. The filter box and the base box are connected through the dust collection groove. A dust collection box is movably installed inside the base box, and the front end of the dust collection box extends to the front end surface of the base box.

[0007] Preferably, a fixing plate is fixedly installed inside the filter plate, a vibration box is fixedly installed on one side of the fixing plate, and a vibration motor is fixedly installed inside the vibration box.

[0008] Preferably, mounting strips are symmetrically arranged above and below the filter plate, the mounting strips are L-shaped, the mounting strips are fixedly connected to the filter box, and a compression spring is fixedly installed on the side of the filter plate facing the mounting strips, the end of the compression spring away from the filter plate is fixedly connected to the mounting strips.

[0009] Preferably, the compression spring has a guide post inside, one end of which is fixedly connected to the filter plate, and the other end of which slides through the mounting strip.

[0010] Preferably, a screw box is fixedly installed above the filter box, and sealing plates are symmetrically arranged on both sides of the screw box. The lower end of the sealing plate slides into the interior of the filter box, and a transmission plate is fixedly installed above the sealing plate on the side facing the filter box.

[0011] Compared with the prior art, the beneficial effects of this utility model are: (1) This utility model has significant passive heat dissipation advantages through the coordinated design of the non-powered ventilator and the ventilation structure. The non-powered ventilator uses natural wind pressure and thermal pressure difference to achieve air convection without the need for electric drive. Even when the fan fails, it can still continuously discharge hot air through the vent and the grid plate, avoiding the rapid accumulation of heat in the cabinet and ensuring stable operation of the equipment. The heat dissipation cylinder and the protective cover form a three-dimensional air duct. With the symmetrical vent design, the natural ventilation effect is enhanced. Even if the efficiency of the non-powered ventilator is limited, it can still maintain the basic heat dissipation capacity, reduce the risk of component overheating, ensure the stability of component performance, and improve the practicality and reliability of the electrical control cabinet.

[0012] (2) This utility model sets up a fan cylinder with a fan and sets up a filter plate inside the filter box on one side of the fan cylinder. By setting up the fan, the air flow inside the cabinet can be forcibly accelerated, the heat inside the cabinet can be quickly discharged, and the heat dissipation effect can be enhanced. By using the filter plate, the air entering the cabinet can be filtered, effectively blocking dust, debris and other objects from entering the cabinet, thus increasing its practicality.

[0013] (3) By setting up a vibration box that drives the vibration motor, the present invention can drive the filter plate to vibrate. The vibration can make the dust attached to the filter plate more easily fall off and fall into the dust collection box through the dust collection groove, preventing the dust from clogging the pores of the filter plate, which is conducive to the stable use of the filter plate and increases its practicality. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of a heat dissipation device for an electrical control cabinet according to the present invention; Figure 2 This is a side view of the heat dissipation device for an electrical control cabinet according to the present invention. Figure 3 This is a cross-sectional view of the heat dissipation cylinder and protective cover of this utility model; Figure 4 This is a cross-sectional view of the filter box of this utility model; Figure 5 This is an enlarged schematic diagram of part A of this utility model.

[0015] In the diagram: 1. Cabinet body; 2. Cabinet door; 3. Heat dissipation cylinder; 4. Protective cover; 5. Fan square cylinder; 6. Filter box; 7. Mesh plate; 8. Non-powered fan cap; 9. Filter plate; 10. Protective grille; 11. Base box; 12. Dust collection box; 13. Fixing plate; 14. Vibration box; 15. Sealing plate; 16. Screw box; 17. Transmission plate; 18. Mounting strip; 19. Compression spring; 20. Guide column. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0017] Please see Figure 1-5 An embodiment of this utility model provides: a heat dissipation device for an electrical control cabinet, including a cabinet body 1, a cabinet door 2 rotatably installed at the front end of the cabinet body 1, a heat dissipation cylinder 3 fixedly installed on one side above the cabinet body 1, a protective cover 4 fixedly installed above the heat dissipation cylinder 3, a non-powered vent cap 8 fixedly installed inside the protective cover 4, ventilation openings symmetrically arranged on both sides of the protective cover 4, and a mesh plate 7 fixedly installed inside the ventilation openings of the protective cover 4.

[0018] The non-powered ventilator 8 can automatically rotate to form air convection by utilizing natural wind power and the thermal pressure difference generated by the temperature difference between the inside and outside of the cabinet, achieving rapid natural heat dissipation. Even in the event of sudden situations such as fan failure, it can still rely on the natural heat dissipation structure to expel heat from the cabinet in a timely manner, avoiding rapid heat accumulation, effectively preventing equipment from overheating, ensuring stable component performance, and improving the practicality and reliability of the electrical control cabinet.

[0019] Please see Figure 2 and Figure 4 A fan tube 5 is fixedly installed on the lower side of one side of the cabinet 1. A fan is fixedly installed inside the fan tube 5. A filter box 6 is fixedly installed on one side of the fan tube 5. A filter plate 9 is installed inside the filter box 6. A protective grille 10 is fixedly installed on one side of the filter box 6.

[0020] As an active heat dissipation component, the fan can forcibly accelerate the airflow inside the cabinet. When the equipment is operating under high load or the ambient temperature is high, it can quickly expel the heat from the cabinet and enhance the heat dissipation effect. The filter box 6 and the internal filter plate 9 can filter the air entering the cabinet, effectively blocking dust, debris and other objects from entering the cabinet, preventing dust from accumulating on electrical components and affecting their heat dissipation performance and causing short circuits and other faults. The protective grille 10 further protects the filter box 6, preventing large objects from hitting and damaging the filter structure, and increasing its practicality.

[0021] Please see Figure 4 A base box 11 is fixedly installed below the filter box 6. A dust collection groove is provided on one side of the filter plate 9 inside the filter box 6. The filter box 6 and the base box 11 are connected through the dust collection groove. A dust collection box 12 is movably installed inside the base box 11. The front end of the dust collection box 12 extends to the front end surface of the base box 11.

[0022] The dust collection slot design allows the dust intercepted by the filter plate 9 to fall into the dust collection box 12 inside the bottom box 11, realizing automatic dust collection. The dust collection box 12 is movable and its front end extends to the front face of the bottom box 11, making it convenient for operators to remove the dust collection box 12 for cleaning without disassembling the entire filter box 6, which greatly simplifies the cleaning and maintenance process and saves maintenance time and labor costs.

[0023] Please see Figure 4 and Figure 5 A fixing plate 13 is fixedly installed inside the filter plate 9. A vibration box 14 is fixedly installed on one side of the fixing plate 13. A vibration motor is fixedly installed inside the vibration box 14. Mounting strips 18 are symmetrically arranged above and below the filter plate 9. The mounting strips 18 are L-shaped plates and are fixedly connected to the filter box 6. A compression spring 19 is fixedly installed on the side of the filter plate 9 facing the mounting strip 18. The end of the compression spring 19 away from the filter plate 9 is fixedly connected to the mounting strip 18.

[0024] The vibration motor can drive the filter plate 9 to vibrate through the fixed plate 13. The vibration makes it easier for the dust attached to the filter plate 9 to fall off and into the dust collection box 12 through the dust collection groove holes, effectively preventing dust from clogging the pores of the filter plate 9, ensuring the air permeability and filtration effect of the filter plate 9. The compression spring 19 provides elastic support for the vibration of the filter plate 9, increasing its practicality.

[0025] Please see Figure 5 The compression spring 19 has a guide post 20 inside. One end of the guide post 20 is fixedly connected to the filter plate 9, and the other end of the guide post 20 slides through the mounting strip 18.

[0026] The guide post 20 plays a guiding role during the extension and retraction of the compression spring 19, which can ensure that the filter plate 9 moves in a straight line during vibration, avoid the filter plate 9 from shifting during vibration, and increase practicality.

[0027] Please see Figure 4 A screw box 16 is fixedly installed above the filter box 6. Sealing plates 15 are symmetrically arranged on both sides of the screw box 16. The lower end of the sealing plate 15 slides into the interior of the filter box 6. A transmission plate 17 is fixedly installed above the side of the sealing plate 15 facing the filter box 6. One end of the transmission plate 17 extends into the interior of the screw box 16. Long slots are provided on both end faces of the screw box 16 to facilitate the normal lifting and lowering movement of the transmission plate 17. A ball screw is rotatably installed inside the screw box 16, and a sliding block fixedly connected to the transmission plate 17 is slidably installed on the outside of the ball screw through a ball nut. A drive motor for the ball screw is provided above the screw box 16 to drive the sealing plate 15 to lift and lower.

[0028] By causing the transmission plate 17 to drive the sealing plate 15 to descend, the filter box 6 is sealed, effectively preventing dust from drifting to the outside when the filter plate 9 vibrates and is cleaned, thus increasing its practicality.

[0029] Working principle: During use, the non-powered vent 8 inside the protective cover 4 rotates automatically with the help of natural wind and the thermal pressure difference generated by the temperature difference between the inside and outside of the cabinet, forming air convection. This allows the heat inside the cabinet to be discharged through the heat dissipation cylinder 3. Even if the fan fails, heat dissipation can be achieved in time. When forced cooling is performed, the fan inside the fan cylinder 5 runs, forcibly accelerating the airflow inside the cabinet, quickly dissipating heat, and enhancing the heat dissipation effect. Before the air enters the cabinet, it passes through the filter box 6 and the filter plate 9 to intercept dust. The dust intercepted by the filter plate 9 falls into the dust collection box 12 of the bottom box 11 through the dust collection groove holes. The vibration motor in the vibration box 14 starts every once in a while, driving the filter plate 9 to vibrate through the fixing plate 13, making it easier for dust to fall into the dust collection box 12, preventing the filter plate 9 pores from being blocked. When the filter plate 9 vibrates, it can drive the sealing plate 15 to fall down, preventing dust from drifting to the outside, thus increasing practicality.

[0030] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. An electric appliance control cabinet heat dissipation device, comprising a cabinet body (1), characterized in that: The cabinet (1) is rotatably mounted with a cabinet door (2), a heat sink (3) is fixedly mounted on one side above the cabinet (1), a protective cover (4) is fixedly mounted above the heat sink (3), a non-powered vent cap (8) is fixedly mounted inside the protective cover (4), ventilation openings are symmetrically arranged on both sides of the protective cover (4), and a grid plate (7) is fixedly mounted inside the ventilation opening of the protective cover (4).

2. The heat dissipation device for an electrical control cabinet according to claim 1, characterized in that: A fan tube (5) is fixedly installed on the lower side of one side of the cabinet (1). A fan is fixedly installed inside the fan tube (5). A filter box (6) is fixedly installed on one side of the fan tube (5). A filter plate (9) is installed inside the filter box (6). A protective grille (10) is fixedly installed on one side of the filter box (6).

3. The heat dissipation device for an electrical control cabinet according to claim 2, characterized in that: A base box (11) is fixedly installed below the filter box (6). A dust collection groove is provided on one side of the filter plate (9) inside the filter box (6). The filter box (6) and the base box (11) are connected through the dust collection groove. A dust collection box (12) is movably arranged inside the base box (11). The front end of the dust collection box (12) extends to the front end surface of the base box (11).

4. The heat dissipation device for an electrical control cabinet according to claim 3, characterized in that: A fixing plate (13) is fixedly installed inside the filter plate (9), and a vibration box (14) is fixedly installed on one side of the fixing plate (13). A vibration motor is fixedly installed inside the vibration box (14).

5. The heat dissipation device for an electrical control cabinet according to claim 4, characterized in that: Mounting strips (18) are symmetrically arranged above and below the filter plate (9). The mounting strips (18) are L-shaped plates and are fixedly connected to the filter box (6). A compression spring (19) is fixedly installed on the side of the filter plate (9) facing the mounting strips (18). The end of the compression spring (19) away from the filter plate (9) is fixedly connected to the mounting strips (18).

6. The heat dissipation device for an electrical control cabinet according to claim 5, characterized in that: The compression spring (19) has a guide post (20) inside. One end of the guide post (20) is fixedly connected to the filter plate (9), and the other end of the guide post (20) slides through the mounting strip (18).

7. The heat dissipation device for an electrical control cabinet according to claim 6, characterized in that: A screw box (16) is fixedly installed above the filter box (6). A sealing plate (15) is symmetrically arranged on both sides of the screw box (16). The lower end of the sealing plate (15) slides into the interior of the filter box (6). A transmission plate (17) is fixedly installed above the sealing plate (15) on the side facing the filter box (6).

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