An electric power cabinet with high efficiency and uniform heat dissipation

Abstract

The application discloses a high-efficiency and uniform heat-dissipation power cabinet, which comprises a main body mechanism, a heat-dissipation mechanism fixed in the main body mechanism and a photovoltaic mechanism fixed on the top of the main body mechanism; the heat-dissipation mechanism comprises a heat-conducting coaming, a metal mesh partition plate and a plurality of heat-dissipation plates, and the top of each heat-dissipation plate is provided with a plurality of flow guide grooves; the photovoltaic mechanism comprises a supporting baffle, a liquid storage cover for storing cooling water fixed on the top of the supporting baffle, a connecting rod fixed with an electric reciprocating screw rod installed in a flow guide pipe, a directional sliding sleeve fixed with a guide frame at the bottom and a special-shaped guide disc fixed at the bottom of the connecting rod; in actual use, the guide frame can slide on the surface of the heat-dissipation plate along the horizontal track of the two limiting sliding rods, so that when the cooling water falls into the guide frame through the flow guide pipe and falls on the surface of the heat-dissipation plate, the cooling water can be pushed to move on the surface of the heat-dissipation plate, thereby increasing the contact range of the cooling water and the surface of the heat-dissipation plate and greatly improving the heat-dissipation range and heat-dissipation efficiency of the power cabinet.

Description

[0001] This invention patent application is a divisional application. The original application number is 202510260886.1, the application date is March 6, 2025, and the invention title is "An Easy-to-Maintain Power Cabinet". Technical Field

[0002] This application relates to the field of power technology, and in particular to a power cabinet with efficient and uniform heat dissipation. Background Technology

[0003] A power cabinet is a device used for the protection, control, and monitoring of electrical equipment in a power system. It is usually made of metal and contains various switches, relays, circuit breakers, instruments, and control equipment. Power cabinets can be customized according to the needs of the electrical system and have the characteristics of high protection level, strong anti-interference ability, and easy operation. They are commonly found in the power supply systems of substations, distribution rooms, and large mechanical equipment. At present, with the continuous increase in electrification demand, the heat dissipation requirements of power cabinets have also increased significantly. Some power cabinets use liquid cooling for cooling, but because liquid tends to accumulate, it can lead to uneven heat dissipation between areas. Summary of the Invention

[0004] The technical solution of the present invention to solve the above-mentioned technical problems is as follows: A power cabinet with efficient and uniform heat dissipation includes a main body structure, a heat dissipation mechanism fixedly installed inside the main body structure, and a photovoltaic mechanism fixedly installed on the top of the main body structure; the heat dissipation mechanism includes a heat-conducting enclosure plate, a plurality of metal mesh partitions fixedly installed on the top of the heat-conducting enclosure plate, a plurality of metal heat-conducting covers fixedly installed between the metal mesh partitions, a heat dissipation plate fixedly installed on the top of the metal mesh partitions, and a plurality of flow guide grooves opened on the top of the heat dissipation plate; the photovoltaic mechanism includes a supporting baffle plate, a liquid storage cover for storing cooling water fixedly installed on the top of the supporting baffle plate, an electric reciprocating screw installed at the center of the liquid storage cover, and a flow guide pipe provided at the bottom of the liquid storage cover; a connecting rod fixedly connected to the electric reciprocating screw is installed inside the flow guide pipe, two limiting slide rods are fixedly installed on the flow guide pipe, a directional sliding sleeve is slidably installed on the limiting slide rod, a guide frame is fixedly installed at the bottom of the directional sliding sleeve, and a shaped guide plate is fixedly installed at the bottom of the connecting rod.

[0005] Preferably, a drain pipe connected to the guide groove is fixedly installed on one side of the heat sink, and one side of the drain pipe extends out of the power cabinet body.

[0006] Preferably, a second guide groove is fixedly installed on one side of the irregularly shaped guide disc, a directional sliding support rod is slidably installed in the inner cavity of the second guide groove, and a third telescopic spring is fixedly installed at one end of the directional sliding support rod and fixedly connected to the second guide groove.

[0007] Preferably, the length of the directional sliding support rod is the same as the radius of the side of the irregular guide disc where the second guide groove is provided.

[0008] Preferably, the top of the liquid storage cover is hinged with multiple photovoltaic support plates for mounting photovoltaic panels. The photovoltaic support plates have multiple small holes. An internally threaded connecting sleeve is engaged on the electric reciprocating screw, and the internally threaded connecting sleeve is hinged to the photovoltaic support plate. A one-way flow plate that is rotatably connected to the electric reciprocating screw is fixed inside the liquid storage cover. An elastic connecting ring is rotatably mounted on the photovoltaic support plate. A first guide groove is opened on the inner wall of the liquid storage cover. An directional connecting plate is slidably mounted in the first guide groove. The directional connecting plate is hinged to the elastic connecting ring. A first telescopic spring is fixedly mounted on one side of the directional connecting plate. Attached Figure Description

[0009] To more clearly illustrate the embodiments of the present invention or the existing technical solutions, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0010] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0011] Figure 2 This is a cross-sectional view of the overall structure of the present invention;

[0012] Figure 3 For the present invention Figure 2 Enlarged view of the A-section structure;

[0013] Figure 4 For the present invention Figure 2 Enlarged view of the structure of section B;

[0014] Figure 5 For the present invention Figure 2 Enlarged view of the C-section structure;

[0015] Figure 6 This is a partial structural side sectional view of the main body mechanism and heat dissipation mechanism of the present invention;

[0016] Figure 7 For the present invention Figure 6 Enlarged view of the structure of part D.

[0017] In the diagram: 1. Main structure; 101. Power cabinet; 102. Electrical components; 2. Photovoltaic mechanism; 21. Supporting baffle; 22. Liquid storage cover; 23. Photovoltaic support plate; 24. Electric reciprocating screw; 25. Internal threaded connecting sleeve; 26. One-way flow plate; 27. Elastic connecting ring; 28. First guide groove; 29. ​​Oriented connecting plate; 210. First telescopic spring; 3. Heat dissipation mechanism; 31. Heat-conducting enclosure; 32. Metal mesh partition; 33. Metal heat-conducting cover; 34. Heat dissipation plate; 35. Heat-conducting groove; 36. Flow guide groove; 37. Flow guide pipe; 38. Connecting rod; 39. Limiting slide rod; 310. Oriented sliding sleeve; 311. Guide frame; 312. Irregularly shaped guide plate; 313. Second telescopic spring; 314. Second guide groove; 315. Oriented sliding support rod; 316. Third telescopic spring; 317. Drainage pipe. Detailed Implementation

[0018] The principles and features of the present invention are described below with reference to the accompanying drawings. The examples given are only for explaining the present invention and are not intended to limit the scope of the present invention.

[0019] Please see Figure 1-7 As shown in the figure, this embodiment provides a power cabinet with efficient and uniform heat dissipation, such as... Figure 1-2 As shown, it includes a main body 1, and a heat dissipation mechanism 3 is fixedly installed inside the main body 1; see reference. Figure 2 As shown, the main structure 1 includes a power cabinet 101, and electrical components 102 are fixedly installed inside the power cabinet 101. Figure 5 As shown, the heat dissipation mechanism 3 includes a heat-conducting enclosure 31 fixedly installed on the top of the electrical component 102. Multiple metal mesh partitions 32 are fixedly installed on the top of the heat-conducting enclosure 31. Multiple metal heat-conducting covers 33 are fixedly installed vertically between the multiple metal mesh partitions 32. A heat sink 34 is fixedly installed on the top of the metal mesh partitions 32. In actual use, the heat-conducting enclosure 31 is used to guide the heat generated by the electrical component 102 during operation to the metal mesh partitions 32. After the metal mesh partitions 32 absorb heat, the temperature of the heat-conducting enclosure 31 drops rapidly, preventing heat from accumulating in the core area of ​​the electrical component 102. Then, the metal mesh partitions 32 and the metal heat-conducting covers 33 absorb and store heat, alleviate the heat load, and ensure stable equipment operating temperature. At the same time, the heat sink 34 dissipates heat to the surroundings.

[0020] The interior of each of the multiple metal heat-conducting covers 33 is hollow, and the inner cavity of each metal heat-conducting cover 33 is filled with paraffin wax and expanded graphite. The purpose of this arrangement is to divide the interior of the metal mesh partition 32 into multiple independent small cavities. The paraffin wax and expanded graphite filling each small cavity effectively prevent the multiple metal heat-conducting covers 33 and the paraffin wax and expanded graphite inside them from delamination or movement due to thermal cycling, thereby improving the uniformity of heat transfer. At the same time, it enhances the overall mechanical strength and stability of the metal mesh partition 32, thereby quickly responding to the heat dissipation needs of different heat source areas and achieving more precise thermal management.

[0021] Meanwhile, multiple interconnected heat-conducting grooves 35 are provided inside the multiple metal mesh partitions 32, so that the heat absorbed by the multiple metal mesh partitions 32 during the phase change process of the paraffin and expanded graphite inside the metal heat-conducting cover 33 can be quickly circulated and diffused to the heat sink 34 through the heat-conducting grooves 35.

[0022] Furthermore, the top of the heat sink 34 is provided with multiple guide grooves 36 to increase the heat dissipation area of ​​the heat sink 34 surface. In cooperation with the photovoltaic mechanism 2, external cooling water is used and guided to the guide grooves 36 for circulation, so that the evaporative cooling effect of the cooling water on the surface of the heat sink 34 can further improve the heat dissipation efficiency.

[0023] Furthermore, referring to Figure 2-3 As shown, a photovoltaic mechanism 2 is fixedly installed on the top of the main body 1. The photovoltaic mechanism 2 includes a support baffle 21 fixedly installed on the top of the power cabinet 101. A liquid storage cover 22 for storing cooling water is fixedly installed on the top of the support baffle 21. The top of the liquid storage cover 22 is open, and multiple photovoltaic support plates 23 for installing photovoltaic panels are hinged to the top of the liquid storage cover 22. Elastic waterproof strips can be fixedly connected between the multiple photovoltaic support plates 23. Under normal conditions, the multiple photovoltaic support plates 23 are tilted and spliced ​​together to form a cone shape covering the top of the liquid storage cover 22. At the same time, an electric reciprocating screw 24 is rotatably installed on the vertical center line of the liquid storage cover 22. The outer wall of the electric reciprocating screw 24 is engaged with an internal threaded connecting sleeve 25 that is hinged to the multiple photovoltaic support plates 23. A waterproof drive motor can be installed below the electric reciprocating screw 24. Figure 3 and Figure 5As shown, a one-way flow plate 26 is fixedly installed inside the liquid storage cover 22 and is rotatably connected to the electric reciprocating screw 24. The bottom of the liquid storage cover 22 is provided with a guide pipe 37 that communicates with the one-way flow plate 26. Multiple pressure-type one-way valves can be installed at the connection between the one-way flow plate 26 and the guide pipe 37. When the cooling water in the liquid storage cover 22 generates pressure exceeding the threshold of the pressure-type one-way valve, the cooling water can flow into the guide pipe 37 through the one-way flow plate 26. The guide pipe 37 penetrates through the power cabinet 101 and extends to the top of the guide groove 36 of the heat sink 34.

[0024] Understandably, in practical use, the user can first install the photovoltaic panel on the photovoltaic support plate 23. Under normal conditions, the multiple photovoltaic support plates 23 are tilted away from the side of the liquid storage cover 22, so that the multiple photovoltaic support plates 23 and the photovoltaic panel cover the top of the liquid storage cover 22 in an inverted funnel shape. This allows the photovoltaic panel to receive sunlight from all directions, improving the photovoltaic conversion efficiency of the photovoltaic panel. A portion of the electricity generated by the photovoltaic panel can be used to drive the motor, etc. Secondly, by starting the electric reciprocating screw 24, the internal threaded connecting sleeve 25 can drive the multiple photovoltaic support plates 23 to move up and down at the end hinged to the internal threaded connecting sleeve 25, thereby changing the tilt angle of the multiple photovoltaic support plates 23 and the photovoltaic panel. Under normal conditions, the internal threaded connecting sleeve 25 drives the photovoltaic support plate 23 to be positioned on the side of the electric reciprocating screw 24 away from the one-way flow plate 26. At this time, the multiple photovoltaic support plates 23 and the photovoltaic panel are in an inverted funnel shape, which facilitates the reception of sunlight. When the electric reciprocating screw 24 is driven to rotate, causing the internal threaded connecting sleeve 25 to drive the multiple photovoltaic support plates 23 to gradually tilt downward, the space between the liquid storage cover 22 and the photovoltaic support plate 23 begins to decrease. This causes the cooling water stored between the liquid storage cover 22 and the photovoltaic support plate 23 to be compressed. When the pressure of the cooling water on the one-way flow plate 26 reaches a threshold, the cooling water can enter the inner cavity of the guide pipe 37 through the one-way flow plate 26 and fall onto the heat dissipation plate 3. 4. This allows cooling water to circulate within the channels of the guide groove 36, greatly improving heat dissipation efficiency. Preferably, the photovoltaic support plate 23 can be provided with multiple small holes. During the downward movement of the photovoltaic support plate 23 driven by the electric reciprocating screw 24, the speed at which air or cooling water passes through the small holes is relatively slow, avoiding the possibility that the pressure of the cooling water on the one-way flow plate 26 during the downward movement will not reach the threshold. At the same time, when the electric reciprocating screw 24 rotates so that the internal threaded connecting sleeve 25 is positioned above the bottom one-way flow plate 26, the photovoltaic support plate 23 and the photovoltaic panel form an upright funnel shape. Some cooling water can pass through the small holes and remain at the bottom of the funnel formed by the photovoltaic support plate 23 and the photovoltaic panel. At this time, the electric reciprocating screw... Rod 24 drives multiple photovoltaic support plates 23 to move upwards gradually through internal threaded connecting sleeve 25. The photovoltaic support plates 23 and photovoltaic panels begin to tilt outwards gradually. During this process, the remaining cooling water flows from the end of the photovoltaic support plate 23 and photovoltaic panel near the electric reciprocating screw 24 to the bottom, carrying away the dust attached to the photovoltaic panel, improving the cleanliness of the photovoltaic panel surface and greatly improving the photoelectric conversion efficiency. In addition, when encountering rainy weather, the photovoltaic panel cannot perform efficient photoelectric conversion. The internal threaded connecting sleeve 25 can be driven to a lower position, allowing the photovoltaic support plate 23 to better receive some rainwater. This rainwater will slowly fall into the liquid storage cover 22 through small holes, supplementing the cooling water.

[0025] Furthermore, referring to Figure 4As shown, elastic connecting rings 27 are rotatably installed on the outer walls of multiple photovoltaic support plates 23, and a first guide groove 28 is provided on the inner wall of the liquid storage cover 22. A directional connecting plate 29 hinged to the elastic connecting ring 27 is slidably installed in the inner cavity of multiple first guide grooves 28, and a first telescopic spring 210 fixedly connected to the first guide groove 28 is fixedly installed on one side of multiple directional connecting plates 29. In actual use, as the photovoltaic support plate 23 is tilted and adjusted, the directional connecting plate 29 can telescopically move in the inner cavity of the first guide groove 28 to avoid affecting the flexibility of the photovoltaic support plate 23 during tilt adjustment.

[0026] Understandably, in actual use, as the photovoltaic support plate 23 is tilted and adjusted, the directional connecting plate 29 can extend and retract within the cavity of the first guide groove 28, thereby improving the flexibility of the photovoltaic support plate 23 during tilt adjustment and preventing damage to the photovoltaic plate.

[0027] More preferably, a connecting rod 38 fixedly connected to the electric reciprocating screw 24 is installed inside the guide tube 37. Two limiting slide rods 39 are fixedly installed on the guide tube 37. A directional slide sleeve 310 is slidably installed on the limiting slide rod 39. A guide frame 311 is fixedly installed at the bottom of the directional slide sleeve 310. A second telescopic spring 313 is fixedly installed between the directional slide sleeve 310 and the guide tube 37. A shaped guide plate 312 is fixedly installed at the bottom of the connecting rod 38. The shaped guide plate 312 matches the connecting rod 38.

[0028] A drain pipe 317 connected to the guide groove 36 is fixedly installed on one side of the heat sink 34, and one side of the drain pipe 317 extends out of the power cabinet 101.

[0029] Specifically, among which, refer to Figure 5 and Figure 7As shown, a connecting rod 38, which is fixedly connected to an electric reciprocating screw 24, is rotatably installed inside the guide tube 37. Two limiting slide rods 39 are fixedly installed on the outer wall of the guide tube 37. A directional sliding sleeve 310 is slidably installed on the outer wall of each of the two limiting slide rods 39. A guide frame 311 is fixedly installed at the bottom of each of the two directional sliding sleeves 310. A second telescopic spring 313 is fixedly installed between the directional sliding sleeve 310 and the guide tube 37. A shaped guide plate 312 is fixedly installed at the bottom of the connecting rod 38. In actual use, the guide frame 311 can slide along the horizontal trajectory of the two limiting slide rods 39 on the surface of the heat sink 34 through the directional sliding sleeve 310, so that when the cooling water flows through the guide tube... When the pipe 37 falls into the guide frame 311 and onto the surface of the heat sink 34, the back-and-forth translation of the guide frame 311 pushes the cooling water to move on the surface of the heat sink 34, thereby increasing the contact range between the cooling water and the surface of the heat sink 34 and avoiding the problem of ineffective diffusion affecting the overall heat dissipation efficiency of the heat sink 34. When the connecting rod 38 rotates synchronously with the electric reciprocating screw 24 and drives the irregular guide disk 312 to rotate, the more protruding side of the irregular guide disk 312 contacts the horizontal inner wall of the guide frame 311 and pushes the guide frame 311 to translate. By repeating this process, the guide frame 311 can move horizontally back and forth on the surface of the heat sink 34.

[0030] Meanwhile, a drain pipe 317 connected to the guide groove 36 is fixedly installed on one side of the heat sink 34, and one side of the drain pipe 317 extends out of the outer wall of the power cabinet 101. The purpose of this arrangement is to allow the cooling water to flow through the surface of the heat sink 34 and then through the inner cavity of the guide groove 36, and flow to the guide pipe 37 to discharge into the inner cavity of the power cabinet 101, so as to avoid the problem of excessive moisture in the inner cavity of the power cabinet 101 due to the long-term accumulation of excess cooling water.

[0031] Alternatively, as another implementation method, refer to Figure 7As shown, a second guide groove 314 is fixedly installed on one side of the irregular guide disk 312. A directional sliding support rod 315 is slidably installed in the inner cavity of the second guide groove 314. A third telescopic spring 316, which is fixedly connected to the second guide groove 314, is fixedly installed at one end of the directional sliding support rod 315. The length of the directional sliding support rod 315 is the same as the radius of the side of the irregular guide disk 312 where the second guide groove 314 is located. Under normal conditions, the third telescopic spring 316 is in an extended state, pushing the directional sliding support rod 315 out of the inner cavity of the second guide groove 314. When the connecting rod 38 rotates synchronously with the electric reciprocating screw 24, it drives the irregular guide disk 312 to rotate. During rotation, as the side of the irregular guide disk 312 with the directional sliding rod 315 contacts the horizontal inner wall of the guide frame 311, the directional sliding rod 315 is pressed and retracts into the inner cavity of the second guide groove 314. When the side of the irregular guide disk 312 with the directional sliding rod 315 gradually rotates towards the side of the guide frame 311 that is vertically towards the inner wall, the directional sliding rod 315 is unrestrained and pushes outward in conjunction with the elastic restoring force of the third telescopic spring 316, thereby synchronously pushing the guide frame 311 near the side with the directional sliding rod 315 to translate in the same direction. By repeating this process, the guide frame 311 can move back and forth on the surface of the heat sink 34.

[0032] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A power cabinet with efficient and uniform heat dissipation, comprising a main body (1), characterized in that: The main body (1) is equipped with a heat dissipation mechanism (3), and a photovoltaic mechanism (2) is fixedly mounted on the top of the main body (1). The heat dissipation mechanism (3) includes a heat-conducting enclosure (31), a plurality of metal mesh partitions (32) are fixedly mounted on the top of the heat-conducting enclosure (31), a plurality of metal heat-conducting covers (33) are fixedly mounted between the metal mesh partitions (32), a heat dissipation plate (34) is fixedly mounted on the top of the metal mesh partitions (32), and a plurality of flow channels (36) are opened on the top of the heat dissipation plate (34). The photovoltaic mechanism (2) includes a supporting baffle (21), and the top of the supporting baffle (21) is... A liquid storage cover (22) for storing cooling water is fixedly installed. An electric reciprocating screw (24) is installed at the center of the liquid storage cover (22). A guide pipe (37) is provided at the bottom of the liquid storage cover (22). A connecting rod (38) fixedly connected to the electric reciprocating screw (24) is installed inside the guide pipe (37). Two limiting slide rods (39) are fixedly installed on the guide pipe (37). A directional slide sleeve (310) is slidably installed on the limiting slide rod (39). A guide frame (311) is fixedly installed at the bottom of the directional slide sleeve (310). A special-shaped guide plate (312) is fixedly installed at the bottom of the connecting rod (38).

2. The power cabinet with high efficiency and uniform heat dissipation according to claim 1, characterized in that: A drain pipe (317) connected to the guide groove (36) is fixedly installed on one side of the heat sink (34), and one side of the drain pipe (317) extends out of the power cabinet (101).

3. The power cabinet with high efficiency and uniform heat dissipation according to claim 2, characterized in that: A second guide groove (314) is fixedly installed on one side of the irregular guide disc (312). A directional sliding support rod (315) is slidably installed in the inner cavity of the second guide groove (314). A third telescopic spring (316) is fixedly installed at one end of the directional sliding support rod (315) and is fixedly connected to the second guide groove (314).

4. The power cabinet with high efficiency and uniform heat dissipation according to claim 3, characterized in that: The length of the directional sliding rod (315) is the same as the radius of the side of the irregular guide plate (312) where the second guide groove (314) is provided.

5. The power cabinet with high efficiency and uniform heat dissipation according to claim 2, characterized in that: The liquid storage cover (22) is hinged to the top of a plurality of photovoltaic support plates (23) for mounting photovoltaic panels. The photovoltaic support plates (23) are provided with a plurality of small holes. An internal threaded connecting sleeve (25) is engaged on the electric reciprocating screw (24). The internal threaded connecting sleeve (25) is hinged to the photovoltaic support plate (23). A one-way flow plate (26) is fixedly installed inside the liquid storage cover (22) and rotatably connected to the electric reciprocating screw (24). An elastic connecting ring (27) is rotatably installed on the photovoltaic support plate (23). A first guide groove (28) is opened on the inner wall of the liquid storage cover (22). A directional connecting plate (29) is slidably installed in the first guide groove (28). The directional connecting plate (29) is hinged to the elastic connecting ring (27). A first telescopic spring (210) is fixedly installed on one side of the directional connecting plate (29).

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