A heat dissipation device for electrical distribution cabinets

Abstract

This utility model belongs to the field of heat dissipation technology for electrical distribution cabinets, specifically a heat dissipation device for electrical distribution cabinets. It includes an external circulation component to prevent excessively high air temperatures entering the distribution cabinet, an internal circulation component for liquid cooling of the distribution cabinet, and an air-cooling component for air cooling of the distribution cabinet, significantly increasing the coverage area of ​​the incoming outside air. This utility model, based on the liquid cooling capabilities of the external and internal circulation components, incorporates an air guide component composed of diaphragms, blades, and other parts, as well as a transmission component that causes the diaphragms to deform regularly, within the airflow channel. This allows the device to continuously change the angle at which outside air enters the distribution cabinet without requiring additional power, thereby significantly increasing the coverage area of ​​the outside air after it enters the cabinet, ensuring the heat dissipation effect and the uniformity of heat dissipation.

Description

Technical Field

[0001] This utility model belongs to the field of heat dissipation technology for power distribution cabinets, specifically relating to a heat dissipation device for electrical power distribution cabinets. Background Technology

[0002] Electrical distribution cabinets are essential facilities in the high and low voltage power distribution field, and are widely used in various power transmission and distribution fields and electrical control fields. Because electrical distribution cabinets house a large number of instruments and other accessories, and some of these accessories generate heat during operation, electrical distribution cabinets are usually equipped with heat dissipation devices to prevent overheating from causing the accessories to malfunction.

[0003] Chinese patent document CN221806287U discloses a distribution box for electrical engineering, which sets a heat dissipation device at the bottom of the box and effectively draws in cold air from the outside to dissipate heat from electrical components by setting up a fan and an internal drive, thus ensuring the heat dissipation efficiency of the distribution box.

[0004] However, in the existing technology, when the power distribution cabinet adopts air cooling, the outside air is basically blown into the cabinet in a fixed direction, and the coverage area is relatively limited, which can easily lead to uneven heat dissipation in different parts of the power distribution cabinet. Therefore, a heat dissipation device for electrical power distribution cabinet is proposed. Utility Model Content

[0005] The purpose of this utility model is to provide a heat dissipation device for electrical distribution cabinets.

[0006] The technical solution adopted in this utility model is as follows:

[0007] An electrical distribution cabinet heat dissipation device includes an external circulation component that can prevent the air temperature entering the distribution cabinet from being too high, an internal circulation component that can liquid cool the distribution cabinet, and an air cooling component that can air cool the distribution cabinet and significantly increase the coverage of the outside air entering the distribution cabinet.

[0008] The external circulation components include a liquid cooling box;

[0009] The air-cooled components include an air intake component that can blow outside air into the distribution cabinet, an air guide component that can change the direction of the outside air blowing into the distribution cabinet, and a transmission component that can make the change of the direction of the outside air blowing into the distribution cabinet more regular.

[0010] The air guide includes an air intake frame fixedly connected to the top of the liquid cooling box, a baffle fixedly connected to the outer side of the air intake frame, a diaphragm fixedly connected to the top of the air intake frame, two protective covers fixedly connected to the top of the diaphragm, a first shaft seat fixedly installed between the two protective covers, a vertical shaft movably connected below the first shaft seat, a slider provided between the diaphragm and the vertical shaft, and a blade fixedly connected to the lower end of the vertical shaft.

[0011] Preferably, the air intake component includes a blower fan fixedly installed in the center of the liquid cooling box, and a filter screen is provided below the blower fan.

[0012] Preferably, the transmission component includes a driving bevel gear fixedly connected to the outer side of the vertical shaft, a second shaft seat is provided on one side of the first shaft seat, a horizontal shaft is movably connected to the second shaft seat, a driven bevel gear is fixedly connected to one end of the horizontal shaft, a cam is fixedly connected to the other end of the horizontal shaft, and a transmission rod is provided between the slider and the cam.

[0013] Preferably, the air intake frame is integrally molded with multiple notches.

[0014] Preferably, the first shaft seat is rotatably connected to the vertical shaft, and the vertical shaft is slidably connected to the slider.

[0015] Preferably, the second shaft seat is rotatably connected to the horizontal shaft, the driving bevel gear is meshed with the driven bevel gear, and the slider and cam are rotatably connected to the transmission rod.

[0016] Preferably, the diaphragm can undergo elastic deformation.

[0017] The beneficial effects of this utility model are as follows: Based on the liquid cooling heat dissipation of the distribution cabinet by the external circulation component and the internal circulation component, the device can be equipped with an air guide component composed of diaphragms, blades and other components, as well as a transmission component that can cause the diaphragm to deform regularly in the channel for supplying outside air to the distribution cabinet. This allows the device to continuously change the angle at which outside air enters the distribution cabinet without the need for additional power, thereby greatly improving the coverage area of ​​outside air after entering the distribution cabinet, and ensuring the heat dissipation effect and heat dissipation balance of the device. Attached Figure Description

[0018] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the following detailed description to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0019] Figure 1 This is a schematic diagram of the structure of a heat dissipation device for an electrical distribution cabinet according to the present invention;

[0020] Figure 2 This is a schematic diagram of the main structure of a heat dissipation device for an electrical distribution cabinet according to the present invention;

[0021] Figure 3 yes Figure 1 Schematic diagram of some component structures;

[0022] Figure 4 yes Figure 1 Schematic diagram of some component structures;

[0023] Figure 5 yes Figure 4 A schematic diagram of the cross-sectional structure;

[0024] Figure 6 yes Figure 4 Schematic diagram of some component structures;

[0025] Figure 7 yes Figure 6 Another perspective structural diagram.

[0026] The annotations in the attached figures are explained as follows:

[0027] 1. External circulation assembly; 101. Liquid cooling box; 102. Liquid injection pipe; 103. Return pipe; 104. Cover; 2. Internal circulation assembly; 201. First connector; 202. Second connector; 203. Spiral tube; 204. Pump; 205. Connecting pipe; 206. Liquid cooling pipe; 3. Air cooling assembly; 301. Blower fan; 302. Filter screen; 303. Air intake frame; 304. Baffle screen; 305. Diaphragm; 306. Protective cover; 307. First shaft seat; 308. Vertical shaft; 309. Slider; 310. Paddle blade; 311. Driving bevel gear; 312. Second shaft seat; 313. Horizontal shaft; 314. Driven bevel gear; 315. Cam; 316. Transmission rod. Detailed Implementation

[0028] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0029] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0030] The present invention will be further described below with reference to the embodiments and accompanying drawings.

[0031] like Figures 1-7 As shown, an electrical distribution cabinet heat dissipation device includes an external circulation component 1 that can prevent the air temperature entering the distribution cabinet from being too high, an internal circulation component 2 that can liquid cool the distribution cabinet, and an air cooling component 3 that can air cool the distribution cabinet and significantly increase the coverage of the outside air entering the distribution cabinet.

[0032] In this embodiment: the external circulation component 1 includes a liquid cooling box 101, a liquid injection pipe 102 is fixedly connected to one side of the liquid cooling box 101, a return pipe 103 is fixedly connected to the other side of the liquid cooling box 101, and a cover 104 is fixedly connected to the top of the liquid cooling box 101.

[0033] The liquid cooling box 101, which has a large through hole in the center and is hollow inside, provides installation positions for components such as the spiral tube 203, pump 204, blower 301, filter 302, and air intake frame 303, ensuring that the device can be used in electrical cabinets. It is connected to external coolant circulation equipment through injection pipes 102 and return pipes 103 of different heights, so that coolant at a low temperature is always injected and retained in the liquid cooling box 101. The top part of the open portion of the liquid cooling box 101 is sealed by the cover 104 to prevent the coolant injected into the liquid cooling box 101 from leaking out.

[0034] In this embodiment: the internal circulation component 2 includes a first connector 201 fixedly connected to one side of the liquid cooling tank 101, a second connector 202 fixedly connected to the other side of the liquid cooling tank 101, a spiral tube 203 provided between the first connector 201 and the second connector 202, a pump 204 fixedly installed on one side of the liquid cooling tank 101, a connecting pipe 205 fixedly connected between the first connector 201 and the liquid inlet end of the pump 204, and a liquid cooling pipe 206 fixedly connected between the second connector 202 and the liquid outlet end of the pump 204;

[0035] The first connector 201 and the second connector 202 replace the spiral tube 203 to pass through the side wall of the liquid cooling box 101 to prevent the coolant in the liquid cooling box 101 from leaking out from the side wall of the liquid cooling box 101. The first connector 201 and the pump 204 are connected by the connecting pipe 205. By placing the long liquid cooling pipe 206 inside the electrical cabinet, it can remove some of the heat inside the electrical cabinet. The pump 204 allows the coolant in the internal circulation component 2 to circulate between the spiral tube 203 and the liquid cooling pipe 206 in a fixed direction.

[0036] In this embodiment: the air-cooled component 3 includes an air intake component that can blow outside air into the distribution cabinet, an air guide component that can change the direction of outside air blowing into the distribution cabinet, and a transmission component that can make the direction of outside air blowing into the distribution cabinet change more regularly.

[0037] The air intake component includes an air intake frame 303 fixedly connected above the liquid cooling tank 101. A baffle 304 is fixedly connected to the outer side of the air intake frame 303. A diaphragm 305 is fixedly connected above the air intake frame 303. Two protective covers 306 are fixedly connected above the diaphragm 305. A first shaft seat 307 is fixedly installed between the two protective covers 306. A vertical shaft 308 is movably connected below the first shaft seat 307. A slider 309 is provided between the diaphragm 305 and the vertical shaft 308. A blade 310 is fixedly connected to the lower end of the vertical shaft 308. The system includes a blower fan 301 fixedly installed in the center of the liquid cooling box 101, a filter screen 302 provided below the blower fan 301, a transmission component including a driving bevel gear 311 fixedly connected to the outer side of the vertical shaft 308, a second shaft seat 312 provided on one side of the first shaft seat 307, a horizontal shaft 313 movably connected to the second shaft seat 312, a driven bevel gear 314 fixedly connected to one end of the horizontal shaft 313, a cam 315 fixedly connected to the other end of the horizontal shaft 313, and a transmission rod 316 provided between the slider 309 and the cam 315.

[0038] The intake frame 303 is integrally formed with multiple notches. The first bearing 307 is rotatably connected to the vertical shaft 308. The vertical shaft 308 is slidably connected to the slider 309. The second bearing 312 is rotatably connected to the horizontal shaft 313. The driving bevel gear 311 is meshed with the driven bevel gear 314. The slider 309 and the cam 315 are both rotatably connected to the transmission rod 316. The diaphragm 305 can undergo elastic deformation.

[0039] A blower fan 301 draws outside air from the center of the liquid-cooled box 101 upwards. A filter 302 prevents external debris from entering the blower fan 301 with the air. An air intake frame 303 with multiple openings allows the delivered air to enter the electrical cabinet through these openings at different angles. A baffle 304 prevents items inside the cabinet from accidentally entering the air intake frame 303. A diaphragm 305 seals the opening at the top of the air intake frame 303 and changes the angle at which air enters the opening when it deforms. A protective cover 306 provides mounting positions and protection for components such as the first shaft seat 307 and the second shaft seat 312. The first shaft seat 307 is vertically mounted on the air intake frame 303 and the protective cover. The vertical shaft 308 between 306 can rotate on its own, driving the horizontal shaft 313, which is horizontally mounted in the protective cover 306 by the second shaft seat 312, to rotate via the active bevel gear 311 and the driven bevel gear 314. The cam 315, which rotates with the horizontal shaft 313, can drive the slider 309 to swing vertically along the vertical shaft 308 via the transmission rod 316. The vertical swing of the slider 309, which is locked at the center of the diaphragm 305, allows the diaphragm 305 to be recessed downward or protruded upward while the edge position is fixed. The blade 310, which is located above the blower 301 and connected to the vertical shaft 308, drives the vertical shaft 308 to rotate due to the airflow when the blower 301 is working.

[0040] Working principle: When this device is installed for heat dissipation of electrical distribution cabinets, holes should be made at the bottom of the distribution cabinet to allow the air inlet frame 303 and liquid cooling pipe 206 to pass through. Then, the liquid cooling box 101 and cover 104 are installed below the distribution cabinet. During installation, the upper side of the cover 104 should fit against the bottom of the distribution cabinet. The liquid cooling pipe 206 and air inlet frame 303 and other components should pass through the bottom of the distribution cabinet and enter it. After insertion, the liquid cooling pipe 206 is arranged and fixed in an orderly manner in the heat concentration position inside the electrical cabinet through external pipe clamps. After the arrangement is completed, it is connected to the external coolant circulation equipment through the liquid injection pipe 102 and return pipe 103, thus completing the preparation work before the use of this device.

[0041] Once ready, pump 204 can be started to allow the coolant in the internal circulation component 2 to flow and dissipate heat from the distribution cabinet. If the heat dissipation effect is not good, the external coolant circulation equipment can be started so that the coolant in the internal circulation component 2 can be quickly cooled by heat exchange when it flows through the spiral tube 203, thereby ensuring the heat dissipation effect of the distribution cabinet through liquid cooling.

[0042] If the liquid cooling effect is insufficient to meet the usage requirements, the blower fan 301 can be activated. Since the air blown into the intake frame 303 by the blower fan 301 flows through the liquid cooling box 101 and towards the blades 310, if the outside air temperature is high, it will be initially cooled by the liquid cooling box 101 through which coolant flows. Under the continuous blowing of air, the blades 310 will drive the vertical shaft 308 to rotate. Since components such as the drive bevel gear 311 can change the direction of the rotation of the vertical shaft 308 and transmit it to the cam 315, the rotation of the cam 315 will then be transmitted through the transmission rod 31... 6 drives the slider 309 located at the center of the diaphragm 305 to swing vertically, causing the part of the diaphragm 305 outside the air intake frame 303 and the protective cover 306 to deform regularly. The continuously deforming diaphragm 305 will cause the airflow blown by the blower fan 301 to enter the distribution cabinet through the opening of the air intake frame 303 at different angles. Therefore, when the blower fan 301 is working, the outside air that plays a role in air cooling can enter the distribution cabinet through the air intake frame 303 at different directions and angles under the action of the air guide and transmission components, so as to greatly improve the coverage of the outside air after entering the distribution cabinet, thereby ensuring the heat dissipation effect.

[0043] The preferred embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present invention.

Claims

1. An electrical switchgear cabinet heat dissipating device, characterized by: It includes an external circulation component (1) that can prevent the air temperature entering the distribution cabinet from being too high, an internal circulation component (2) that can provide liquid cooling heat dissipation for the distribution cabinet, and an air-cooling component (3) that can provide air cooling heat dissipation for the distribution cabinet and greatly increase the coverage of the outside air entering the distribution cabinet. The external circulation component (1) includes a liquid cooling box (101); The air-cooled assembly (3) includes an air intake component that can blow outside air into the distribution cabinet, an air guide component that can change the direction of outside air blowing into the distribution cabinet, and a transmission component that can make the direction of outside air blowing into the distribution cabinet change more regularly. The air guide component includes an air intake frame (303) fixedly connected above the liquid cooling box (101). A baffle (304) is fixedly connected to the outer side of the air intake frame (303). A diaphragm (305) is fixedly connected above the air intake frame (303). Two protective covers (306) are fixedly connected above the diaphragm (305). A first shaft seat (307) is fixedly installed between the two protective covers (306). A vertical shaft (308) is movably connected below the first shaft seat (307). A slider (309) is provided between the diaphragm (305) and the vertical shaft (308). A blade (310) is fixedly connected to the lower end of the vertical shaft (308).

2. The heat dissipation device for electrical power distribution cabinet according to claim 1, characterized in that: The air intake component includes a blower fan (301) fixedly installed in the center of the liquid cooling box (101), and a filter screen (302) is provided below the blower fan (301).

3. The heat dissipation device for electrical power distribution cabinet according to claim 2, characterized in that: The transmission component includes a driving bevel gear (311) fixedly connected to the outer side of the vertical shaft (308), a second shaft seat (312) is provided on one side of the first shaft seat (307), a horizontal shaft (313) is movably connected to the second shaft seat (312), a driven bevel gear (314) is fixedly connected to one end of the horizontal shaft (313), a cam (315) is fixedly connected to the other end of the horizontal shaft (313), and a transmission rod (316) is provided between the slider (309) and the cam (315).

4. The heat dissipation device for an electrical distribution cabinet according to claim 1, characterized in that: The air intake frame (303) has multiple notches integrally formed.

5. The heat dissipation device for an electrical distribution cabinet according to claim 4, characterized in that: The first bearing seat (307) is rotatably connected to the vertical shaft (308), and the vertical shaft (308) is slidably connected to the slider (309).

6. The heat dissipation device for an electrical distribution cabinet according to claim 3, characterized in that: The second shaft seat (312) is rotatably connected to the horizontal shaft (313), the driving bevel gear (311) is meshed with the driven bevel gear (314), and the slider (309) and the cam (315) are rotatably connected to the transmission rod (316).

7. The heat dissipation device for an electrical distribution cabinet according to claim 5, characterized in that: The diaphragm (305) can undergo elastic deformation.

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