A power distribution cabinet with energy-saving and heat-dissipating structure

Abstract

The application relates to a power distribution cabinet with an energy-saving heat dissipation structure, which comprises a cabinet body, a louver assembly and a heat dissipation fan are installed on the side wall of the cabinet body, a first driving assembly, a water collecting hopper and a first rack vertically arranged in the cabinet body, the water collecting hopper is slidingly installed on the upper end of the cabinet body, the lower end of the water collecting hopper is connected with the first rack through a floating assembly, a second driving assembly, a wind cup assembly and a second rack horizontally arranged, a first gear and a second gear are respectively sleeved on the outer side of a power input shaft, the first gear is installed on the power input shaft through a first one-way bearing, the second gear is installed on the power input shaft through a second one-way bearing, and a reset member is connected between the power input shaft and the inner wall of the cabinet body. The louver is self-adaptively and stepwisely adjusted through double power sources, the reset member automatically restores the louver to the open state after rain stops and wind stops, normal ventilation and heat dissipation of the cabinet body are guaranteed, the adjustment process does not need power driving, and the energy-saving effect is remarkable.

Description

Technical Field

[0001] This invention relates to the field of power equipment technology, and more specifically to a power distribution cabinet with an energy-saving heat dissipation structure. Background Technology

[0002] As the final stage equipment in a power system, distribution cabinets are widely used in power distribution applications with dispersed loads and fewer circuits. They house a large number of electrical components, including circuit breakers, contactors, and relays. These components generate a significant amount of heat during operation. If this heat cannot be dissipated in time, the internal temperature of the cabinet will rise, affecting not only the lifespan of the components but also potentially causing insulation aging, increased contact resistance, and even fires. Therefore, heat dissipation performance is one of the important indicators for evaluating the quality of distribution cabinets.

[0003] Existing electrical distribution cabinets typically have fixed ventilation openings that cannot automatically adjust ventilation volume according to weather conditions. In rainy weather, rainwater may enter the cabinet through gaps in the louvers, potentially causing short circuits or electrical leaks. Some existing technologies attempt to use rainwater collection troughs to close the ventilation openings, but this method is simplistic, relying solely on gravity. In situations with light rainfall or continuous rain but strong winds, the louvers cannot adaptively adjust to the actual environmental conditions.

[0004] Therefore, there is an urgent need to provide a power distribution cabinet with an energy-saving heat dissipation structure to solve the above problems. Summary of the Invention

[0005] The purpose of this invention is to overcome the shortcomings and defects of the prior art and provide a power distribution cabinet with an energy-saving heat dissipation structure. It realizes the adaptive and graded adjustment of the louvers driven by dual power sources. The reset component automatically restores the louvers to the open state after the rain stops and the wind stops, ensuring normal ventilation and heat dissipation of the cabinet. The adjustment process does not require electric drive and has a significant energy-saving effect.

[0006] The objective of this invention is achieved through the following technical solution: A power distribution cabinet with an energy-saving heat dissipation structure includes: The cabinet has a louver assembly and a cooling fan installed on its side wall. The louver assembly includes a rotating shaft, a power input shaft, a linkage assembly, and multiple sets of blades arranged vertically. Each blade is rotatably connected to the cabinet via a rotating shaft. The power input shaft is installed inside the cabinet. The linkage assembly is connected between the power input shaft and each rotating shaft to synchronously transmit the rotational motion of the power input shaft to each rotating shaft, thereby driving each blade to deflect synchronously. A first drive assembly, installed in the cabinet, includes a water collection hopper and a first rack vertically disposed within the cabinet; the water collection hopper is slidably installed on the upper end of the cabinet in a vertical direction, and its lower end is connected to the first rack via a floating assembly; The second drive assembly, installed inside the cabinet, includes a wind cup assembly and a horizontally arranged second rack; the wind cup assembly is used to convert the wind force into linear motion of the second rack in the horizontal direction after receiving the wind force. A first gear and a second gear are respectively sleeved on the outside of the power input shaft. The first gear is mounted on the power input shaft through a first one-way bearing, and the second gear is mounted on the power input shaft through a second one-way bearing. The first gear is meshed with a first rack, and the second gear is meshed with a second rack. The locking directions of the first one-way bearing and the second one-way bearing are the same, and both are configured to transmit torque when the rotating shaft rotates in the closed direction. A reset element, connected between the power input shaft and the inner wall of the cabinet, is used to apply a biasing force to the power input shaft in the opening direction.

[0007] Optionally, the linkage component includes a flexible transmission element, one end of which is connected to the power input shaft and the other end of which is connected to the same side of each blade; when the power input shaft rotates, the flexible transmission element pulls each blade to deflect synchronously around its respective rotation axis.

[0008] Optionally, the linkage component further includes a winding component, which is fixedly sleeved on the power input shaft. The flexible transmission component is configured as a pull rope, with one end of the pull rope wound around the winding component and the other end connected to the side of each of the blades.

[0009] Optionally, the floating assembly includes a connecting rod, a first spring, and a connecting block; the upper end of the connecting rod is fixedly connected to the water collection hopper, and the lower end is slidably inserted into the connecting block; the lower end of the connecting rod is provided with a limiting part to prevent it from coming out of the connecting block; the lower end of the connecting block is fixedly connected to the first rack; the first spring is sleeved on the outside of the connecting rod and abuts against the connecting block and the water collection hopper.

[0010] Optionally, the wind cup assembly includes a wind cup and a motion conversion mechanism; the wind cup is located on the outer side of the upper end of the cabinet, the rotating shaft of the wind cup extends into the interior of the cabinet and is connected to the input end of the motion conversion mechanism, and the output end of the motion conversion mechanism is connected to the second rack, for converting the rotational motion of the wind cup into the linear motion of the second rack in the horizontal direction.

[0011] Optionally, the motion conversion mechanism includes a disc, a circular tube, a piston plate, a connecting pipe, a sliding sleeve, a second spring, and a sliding rod; the disc is fixed inside the cabinet and has an internal cavity; the rotating shaft of the wind cup passes through the disc and is rotatably connected to the disc in a sealed manner; multiple sets of circular tubes are arranged in the cavity and are circumferentially connected to the outside of the rotating shaft of the wind cup; the rotating shaft of the wind cup has a hollow structure and is connected to each of the circular tubes; each of the circular tubes is slidably and sealed with a set of piston plates; the cavity is filled with transmission fluid; and the side end of the disc has a liquid outlet; one end of the connecting pipe is connected to the liquid outlet, and the other end is connected to the sliding sleeve; the second spring is arranged on the inner wall of the sliding sleeve near the connecting pipe; the sliding rod slides through the sliding sleeve; one end of the sliding rod is connected to the second spring, and the other end of the sliding rod is fixedly connected to the second rack.

[0012] Optionally, the reset element is a torsion spring, which is sleeved on the outside of the power input shaft, with one end fixedly connected to the inner wall of the cabinet and the other end fixed to the power input shaft.

[0013] Optionally, the bottom of the water collection hopper is provided with a drain outlet, which is connected to a drain pipe. The drain pipe extends into the cabinet and connects to the heat dissipation pipe inside the cabinet. The rainwater collected by the water collection hopper flows into the heat dissipation pipe through the drain outlet and the drain pipe for liquid heat dissipation inside the cabinet.

[0014] Optionally, the upper end of the water collection hopper is provided with a filter screen cover to prevent foreign objects from entering the water collection hopper.

[0015] Optionally, an angle sensor is provided on the power input shaft, and both the angle sensor and the cooling fan are electrically connected to the controller.

[0016] Compared with the prior art, the present invention has the following beneficial effects: In this invention, the power distribution cabinet with an energy-saving heat dissipation structure achieves adaptive adjustment of the louvers driven by dual power sources through a first drive component driven by rainwater and a second drive component driven by wind. When it rains, the rainwater collection hopper collects rainwater and descends under gravity, driving the power input shaft to rotate via the first rack, partially closing the louvers and preventing rainwater from entering the cabinet. When it's windy, the wind cup assembly converts the wind force into the horizontal movement of the second rack, similarly driving the power input shaft to rotate and completely closing the louvers, preventing dust or debris from entering the cabinet. Through the unidirectional locking configuration of two one-way bearings, the rainwater driving force and the wind driving force can be superimposed in the same direction on the power input shaft. When either drive source is removed, the corresponding rack retraction will not cause the power input shaft to rotate in the opposite direction. The reset component automatically restores the louvers to the open state after the rain and wind stop, ensuring normal ventilation and heat dissipation of the cabinet. The entire adjustment process requires no electricity, resulting in significant energy savings. Attached Figure Description

[0017] Figure 1 This is a cross-sectional view of the structure of the present invention.

[0018] Figure 2 This is a schematic diagram of the structure of the first driving component in this invention.

[0019] Figure 3 This is a schematic diagram of the structure of the second driving component in this invention.

[0020] The above figures include the following reference numerals: 1. Cabinet body; 11. Cooling fan; 2. Louver assembly; 21. Rotating shaft; 22. Power input shaft; 221. Angle sensor; 23. Linkage assembly; 231. Pull cord; 232. Winding component; 24. Blade; 31. Water collection hopper; 311. Drain outlet; 312. Filter screen cover; 32. First rack; 33. Floating assembly; 331. Connecting rod; 3311. Limiting part; 332. First spring; 333 34. Connecting block; 35. First gear; 46. First one-way bearing; 47. Wind cup; 48. Second rack; 49. Second gear; 40. Second one-way bearing; 41. Disc; 42. Cavity; 43. Liquid outlet; 44. Round tube; 45. Piston plate; 46. Connecting pipe; 47. Sliding sleeve; 48. Second spring; 49. Sliding rod; 20. Torsion spring; 30. Drain pipe; 41. Heat dissipation pipe. Detailed Implementation

[0021] The present invention will be further described in detail below with reference to the embodiments and accompanying drawings, but the embodiments of the present invention are not limited thereto.

[0022] The present invention proposes a power distribution cabinet with an energy-saving heat dissipation structure.

[0023] Reference Figures 1 to 3 In this embodiment, it includes: Cabinet 1, with a louver assembly 2 and a cooling fan 11 installed on the side wall of cabinet 1. The louver assembly 2 includes a rotating shaft 21, a power input shaft 22, a linkage assembly 23, and multiple sets of blades 24 arranged vertically. Each blade 24 is rotatably connected to cabinet 1 through a rotating shaft 21. The power input shaft 22 is installed inside cabinet 1. The linkage assembly 23 is connected between the power input shaft 22 and each rotating shaft 21, and is used to synchronously transmit the rotational motion of the power input shaft 22 to each rotating shaft 21 to drive each blade 24 to deflect synchronously. The first drive assembly is installed in the cabinet 1 and includes a water collection hopper 31 and a first rack 32 vertically installed in the cabinet 1. The water collection hopper 31 is slidably installed on the upper end of the cabinet 1 in the vertical direction, and its lower end is connected to the first rack 32 through a floating assembly 33. The second drive assembly, installed inside the cabinet 1, includes a wind cup assembly and a horizontally arranged second rack 42; the wind cup assembly is configured to convert the wind force into linear motion of the second rack 42 in the horizontal direction after receiving the wind force. A first gear 34 and a second gear 43 are respectively sleeved on the outside of the power input shaft 22. The first gear 34 is mounted on the power input shaft 22 through a first one-way bearing 35, and the second gear 43 is mounted on the power input shaft 22 through a second one-way bearing 44. The first gear 34 is meshed with the first rack 32, and the second gear 43 is meshed with the second rack 42. The locking directions of the first one-way bearing 35 and the second one-way bearing 44 are the same, and both are configured to transmit torque when the rotating shaft 21 rotates in the closed direction. The reset component is connected between the power input shaft 22 and the inner wall of the cabinet 1, and is used to apply a biasing force to the power input shaft 22 in the opening direction.

[0024] In this embodiment, the system includes a cabinet 1, a first drive assembly, a second drive assembly, and a reset component. The side wall of the cabinet 1 is equipped with a louver assembly 2 and a cooling fan 11. The louver assembly 2 includes multiple sets of blades 24 arranged vertically, multiple rotating shafts 21, a power input shaft 22, and a linkage assembly 23. Each blade 24 is rotatably connected to the cabinet 1 through each rotating shaft 21, and the power input shaft 22 is rotatably installed inside the cabinet 1. The linkage component 23 is connected between the power input shaft 22 and each rotating shaft 21, and is used to synchronously transmit the rotational motion of the power input shaft 22 to each rotating shaft 21 to drive each blade 24 to deflect synchronously; the first drive component is installed in the cabinet 1, including a water collection hopper 31 and a first rack 32 vertically arranged in the cabinet 1. The water collection hopper 31 is slidably installed on the upper end of the cabinet 1 in the vertical direction, and its lower end is connected to the first rack 32 through a floating component 33; after collecting rainwater, the water collection hopper 31 descends by its own gravity and drives the first rack 32 to move downward through the floating component 33; the second drive component is installed in the cabinet 1, including a wind cup assembly and a horizontally arranged second rack 42. The wind cup assembly is used to receive wind power to generate rotational motion and convert the wind power into linear motion of the second rack 42 in the horizontal direction. A first gear 34 and a second gear 43 are respectively mounted on the power input shaft 22. The first gear 34 is mounted on the power input shaft 22 through a first one-way bearing 35, and the second gear 43 is mounted on the power input shaft 22 through a second one-way bearing 44. The first gear 34 is meshed with the first rack 32, and the second gear 43 is meshed with the second rack 42. The locking directions of the first one-way bearing 35 and the second one-way bearing 44 are the same, and both are configured to transmit torque only when the corresponding first rack 32 or second rack 42 drives the power input shaft 22 to rotate in the closing direction. A reset member is connected between the power input shaft 22 and the inner wall of the cabinet 1 to apply a biasing force to the power input shaft 22 to rotate in the opening direction.

[0025] When it rains, the water collection hopper 31 collects rainwater, and its weight gradually increases. When the total weight of the water collection hopper 31 and the rainwater inside it exceeds the biasing force of the reset component, the water collection hopper 31 slides downward in the vertical direction by gravity. The floating component 33 pushes the first rack 32 to move downward. The first rack 32 drives the first gear 34 to rotate. Since the locking direction of the first one-way bearing 35 is the same as the closing direction, the first gear 34 drives the power input shaft 22 to rotate in the closing direction through the first one-way bearing 35. The power input shaft 22 drives each rotating shaft 21 to rotate synchronously through the linkage component 23, so that each blade 24 deflects at a certain angle in the closed position, so that the opening is partially closed, but not completely closed, preventing rainwater from entering the cabinet 1 while ensuring internal heat dissipation. When the wind blows, the wind cup assembly rotates under the action of the wind force, converting the wind force into linear motion of the second rack 42 in the horizontal direction. The second rack 42 drives the second gear 43 to rotate. Since the locking direction of the second one-way bearing 44 is the same as the closing direction, the second gear 43 drives the power input shaft 22 to rotate in the closing direction through the second one-way bearing 44, so that the louvers are completely closed, preventing rainwater from entering the power distribution cabinet.

[0026] When the rain stops and the wind ceases, the rainwater in the water collection hopper 31 is gradually drained. The reset component drives the power input shaft 22 to rotate in the opening direction, which in turn drives each blade 24 to return to the open position through the linkage component 23, ensuring normal ventilation and heat dissipation of the cabinet 1.

[0027] When the first and second drive components operate simultaneously, their driving forces are superimposed in the same direction on the power input shaft 22, making the louvers close more quickly and reliably. This allows the distribution cabinet to adjust the louvers in stages according to changes in the external environment, preventing rainwater from entering the cabinet while also preventing excessive internal temperature caused by the louvers being tightly closed during light rain or when there is no wind. When either drive source is removed, the corresponding rack retracts under the action of the reset force. However, since the one-way bearing is in a free-spinning state in the opposite direction, the retraction of the rack will not cause the power input shaft 22 to rotate in the opposite direction, thus avoiding motion interference between the two drive components.

[0028] In this embodiment, the linkage component 23 includes a flexible transmission component. One end of the flexible transmission component is connected to the power input shaft 22, and the other end is connected to the same side of each blade 24. When the power input shaft 22 rotates, the flexible transmission component pulls each blade 24 to deflect synchronously around its respective rotation axis 21. The flexible transmission component can be made of materials with good flexibility and tensile strength, such as nylon rope or steel wire rope. Each blade 24 has a connecting hole or fixing buckle on the same side for the flexible transmission component to pass through, ensuring a reliable connection between the flexible transmission component and each blade 24.

[0029] Furthermore, in this embodiment, the linkage component 23 also includes a winding member 232, which is fixedly sleeved on the power input shaft 22. The flexible transmission component is configured as a pull rope 231, one end of which is wound around the winding member 232, and the other end is connected to the side of each blade 24. The winding member 232 rotates synchronously with the power input shaft 22. When the power input shaft 22 rotates in the closing direction, the winding member 232 winds the pull rope 231, and the pull rope 231 pulls each blade 24 to deflect synchronously to the closed position. When the power input shaft 22 rotates in the opening direction, the winding member 232 releases the pull rope 231, and each blade 24 returns to the open position under the action of the reset member.

[0030] In this embodiment, the floating component 33 includes a connecting rod 331, a first spring 332, and a connecting block 333. The upper end of the connecting rod 331 is fixedly connected to the water collection bucket 31, and the lower end is slidably inserted into the connecting block 333. The lower end of the connecting rod 331 is provided with a limiting part 3311, the size of which is larger than the insertion hole size of the connecting block 333, to prevent the connecting rod 331 from coming out of the connecting block 333. When the upper end of the limiting part 3311 abuts against the upper end of the inner wall of the connecting block 333, the first spring 332 is in a normal state, preventing the first spring 332 from being stretched due to the weight of the first rack 32 when the device is not working, thus preventing the first rack 32 from moving downward when the water collection bucket 31 begins to sink. The lower end of the connecting block 333 is fixedly connected to the first rack 32. The first spring 332 is sleeved on the outside of the connecting rod 331 and abuts against the connecting block 333 and the water collecting hopper 31. When the water collecting hopper 31 collects rainwater and descends under gravity, the water collecting hopper 31 compresses the first spring 332 through the connecting rod 331. The first spring 332 transmits the elastic force to the connecting block 333, pushing the connecting block 333 and the first rack 32 to move downward.

[0031] When the blinds are fully closed, if the rain continues but the wind stops, the second rack 42 resets, and the resetting force generated by the resetting component is greater than the power generated by the water collection hopper 31 alone. This causes the first rack 32 to move upwards and reset. To prevent the water collection hopper 31 from being lifted, the first rack 32 is pushed upwards by the first gear 34, further compressing the first spring 332 through the connecting block 333, while the water collection hopper 31 remains stationary. The first spring 332 ensures that it can effectively transmit the driving force within the normal operating range, and also provides buffer protection in case of overload.

[0032] In this embodiment, the wind cup assembly includes a wind cup 41 and a motion conversion mechanism. The wind cup 41 is located on the outer side of the upper end of the cabinet 1, and the rotating shaft of the wind cup 41 extends into the cabinet 1 and is connected to the input end of the motion conversion mechanism. The output end of the motion conversion mechanism is connected to a second rack 42, which converts the rotational motion of the wind cup 41 into the linear motion of the second rack 42 in the horizontal direction. The wind cup 41 rotates under the action of wind force, and the rotational speed is approximately proportional to the wind speed. Furthermore, in this embodiment, the motion conversion mechanism includes a disc 451, a circular tube 452, a piston plate 453, a connecting pipe 454, a sliding sleeve 455, a second spring 456, and a sliding rod 457; the disc 451 is fixedly installed inside the cabinet 1, and has a sealed cavity 4511 inside; the rotating shaft of the wind cup 41 passes through the disc 451 and is sealed and rotatably connected to the disc 451 through a sealed bearing (not shown in the figure) to prevent the transmission fluid in the cavity 4511 from leaking from the gap between the rotating shaft and the disc 451; multiple sets of circular tubes 452 are arranged in the cavity 4511 and are fixedly connected to the outside of the rotating shaft of the wind cup 41 in the circumferential direction; the number of circular tubes 452 is preferably 4 to 8 sets, which are evenly distributed in the circumferential direction of the rotating shaft. The rotating shaft of the wind cup 41 is hollow and connected to one end of each circular tube 452. Each circular tube 452 has a set of piston plates 453 that are slidably sealed inside. The cavity 4511 is filled with a transmission fluid, preferably hydraulic oil. The side end of the disc 451 has a liquid outlet 4512. One end of the connecting pipe 454 is connected to the liquid outlet 4512, and the other end is connected to the sliding sleeve 455. The sliding sleeve 455 is fixedly installed inside the cabinet 1. The second spring 456 is located on the inner wall of the sliding sleeve 455 near the connecting pipe 454. The sliding rod 457 is slidably sealed inside the sliding sleeve 455. One end of the sliding rod 457 is connected to the second spring 456, and the other end of the sliding rod 457 is fixedly connected to the second rack 42.

[0033] When the wind cup 41 rotates under the action of wind, the rotating shaft drives each round tube 452 to rotate synchronously; the piston plate 453 inside the round tube 452 slides away from the rotating shaft under the action of centrifugal force, squeezing the transmission liquid inside the round tube 452 into the cavity 4511 of the disc 451; since the cavity 4511 is filled with liquid and is only connected to the connecting pipe 454 through the liquid outlet 4512, the squeezed liquid enters the sliding sleeve 455 through the connecting pipe 454, pushing the sliding rod 457 to slide outward against the elastic force of the second spring 456, thereby driving the second rack 42 to move. The higher the wind speed, the higher the rotational speed of the shaft, the greater the centrifugal force on the piston plate 453, the more liquid is squeezed out, the greater the displacement of the slide rod 457, the greater the movement distance of the second rack 42, and the greater the degree of closure of the louvers. When the wind speed decreases or stops, the rotational speed of the shaft decreases, and the centrifugal force on the piston plate 453 decreases. At this time, the stretched second spring 456 pulls the slide rod 457 to reset, pressing the liquid in the sliding sleeve 455 back into the cavity 4511 of the disc 451 and the circular tube 452 through the connecting pipe 454 and the liquid outlet 4512, and the piston plate 453 resets. The shaft of the wind cup 41 has a hollow structure and is connected to each circular tube 452, allowing the side of the piston plate 453 near the shaft to be connected to the outside atmosphere, eliminating the vacuum resistance on that side and ensuring that the piston plate 453 can slide smoothly.

[0034] In this embodiment, the reset component is a torsion spring 5. The torsion spring 5 is sleeved on the outside of the power input shaft 22, with one end fixedly connected to the inner wall of the cabinet 1 and the other end fixed to the power input shaft 22. One end of the torsion spring 5 is fixedly connected to the inner wall of the cabinet 1, and the other end is fixedly connected to the power input shaft 22 via a slot or fixing pin. When the power input shaft 22 rotates in the closing direction, the torsion spring 5 is torsionated and stores elastic potential energy. When the external driving force is removed, the torsion spring 5 releases its elastic potential energy, driving the power input shaft 22 to rotate and reset in the opening direction. The stiffness and preload of the torsion spring 5 are designed to match the weight of the louvers, the full load weight of the water collection hopper 31, and the driving force of the wind cup assembly to ensure that the louvers can reliably close and open within the normal operating range.

[0035] Furthermore, in this embodiment, the bottom of the water collection hopper 31 is provided with a drain outlet 311; the drain outlet 311 is connected to a drain pipe 61, which extends into the cabinet 1 and communicates with the heat dissipation pipe 62 inside the cabinet 1; the rainwater collected by the water collection hopper 31 flows into the heat dissipation pipe 62 through the drain outlet 311 and the drain pipe 61 for liquid heat dissipation inside the cabinet 1; the heat dissipation pipe 62 is preferably a serpentine coil structure, arranged inside the cabinet 1 near the heat-generating element to increase the heat exchange area and improve heat dissipation efficiency; the end of the heat dissipation pipe 62 can be connected to the drain outlet at the bottom of the cabinet 1 to discharge the heat-exchanged rainwater outside the cabinet 1. The aperture of the drain outlet 311 is designed according to the volume of the water collection hopper 31 and the required drainage speed. Preferably, the aperture of the drain outlet 311 is configured such that the drainage speed of the water collection hopper 31 under full load is less than its water inflow speed under normal rainfall conditions, so as to ensure that the water collection hopper 31 can accumulate enough water during rainfall to drive the louvers to close.

[0036] Furthermore, in this embodiment, the upper end of the water collection hopper 31 is provided with a filter screen cover 312 for preventing foreign objects from entering the water collection hopper 31; the filter screen cover 312 is preferably a stainless steel wire mesh or a nylon mesh, and the mesh size is determined according to the usage environment. The filter screen cover 312 is detachably installed on the upper end of the water collection hopper 31 for easy regular cleaning.

[0037] In this embodiment, an angle sensor 221 is provided on the power input shaft 22; the angle sensor 221 and the cooling fan 11 are both electrically connected to the controller; the angle sensor 221 is used to detect the rotation angle of the power input shaft 22, thereby obtaining the opening and closing status information of the louvers in real time; the angle sensor 221 can be a potentiometer-type angle sensor 221; the controller determines the current opening degree of the louvers based on the signal fed back by the angle sensor 221, and controls the start / stop or speed adjustment of the cooling fan 11 accordingly: when the angle sensor 221 detects that the power input shaft 22 is in the closed position (i.e., the louvers are completely closed), the controller turns off the cooling fan 11 to save energy because the ventilation opening is closed.

[0038] When the angle sensor 221 detects that the power input shaft 22 is in the open position (i.e., the louvers are fully open) and the ambient temperature is below a preset threshold, the controller turns off the cooling fan 11 to save energy. When the angle sensor 221 detects that the power input shaft 22 is in the intermediate position (i.e., the louvers are partially open), the controller adjusts the speed of the cooling fan 11 to achieve on-demand cooling. Combined with the degree of louver closure, this achieves more precise energy-saving control.

[0039] The embodiments described above merely illustrate implementation methods of the present invention, and while the descriptions are specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these modifications and improvements all fall within the scope of protection of the present invention. Therefore, the scope of protection of this patent should be determined by the appended claims.

Claims

1. A power distribution cabinet with an energy-saving heat dissipation structure, characterized in that, include: The cabinet has a louver assembly and a cooling fan installed on its side wall. The louver assembly includes a rotating shaft, a power input shaft, a linkage assembly, and multiple sets of blades arranged vertically. Each blade is rotatably connected to the cabinet via a rotating shaft. The power input shaft is installed inside the cabinet. The linkage assembly is connected between the power input shaft and each rotating shaft to synchronously transmit the rotational motion of the power input shaft to each rotating shaft, thereby driving each blade to deflect synchronously. A first drive assembly, installed in the cabinet, includes a water collection hopper and a first rack vertically disposed within the cabinet; the water collection hopper is slidably installed on the upper end of the cabinet in a vertical direction, and its lower end is connected to the first rack via a floating assembly; The second drive assembly, installed inside the cabinet, includes a wind cup assembly and a horizontally arranged second rack; the wind cup assembly is used to convert the wind force into linear motion of the second rack in the horizontal direction after receiving the wind force. A first gear and a second gear are respectively sleeved on the outside of the power input shaft. The first gear is mounted on the power input shaft through a first one-way bearing, and the second gear is mounted on the power input shaft through a second one-way bearing. The first gear is meshed with a first rack, and the second gear is meshed with a second rack. The locking directions of the first one-way bearing and the second one-way bearing are the same, and both are configured to transmit torque when the rotating shaft rotates in the closed direction. A reset element, connected between the power input shaft and the inner wall of the cabinet, is used to apply a biasing force to the power input shaft in the opening direction.

2. A power distribution cabinet with an energy-saving heat dissipation structure according to claim 1, characterized in that, The linkage component includes a flexible transmission element, one end of which is connected to the power input shaft and the other end of which is connected to the same side of each blade. When the power input shaft rotates, the flexible transmission element pulls each blade to deflect synchronously around its respective rotation axis.

3. A power distribution cabinet with an energy-saving heat dissipation structure according to claim 2, characterized in that, The linkage component also includes a winding component, which is fixedly sleeved on the power input shaft. The flexible transmission component is configured as a pull rope, with one end of the pull rope wound around the winding component and the other end connected to the side of each blade.

4. A power distribution cabinet with an energy-saving heat dissipation structure according to claim 1, characterized in that, The floating assembly includes a connecting rod, a first spring, and a connecting block; the upper end of the connecting rod is fixedly connected to the water collection hopper, and the lower end is slidably inserted into the connecting block, with a limiting part at the lower end of the connecting rod to prevent it from coming out of the connecting block; the lower end of the connecting block is fixedly connected to the first rack; the first spring is sleeved on the outside of the connecting rod and abuts against the connecting block and the water collection hopper.

5. A power distribution cabinet with an energy-saving heat dissipation structure according to claim 1, characterized in that, The wind cup assembly includes a wind cup and a motion conversion mechanism; the wind cup is located on the outer side of the upper end of the cabinet, the rotating shaft of the wind cup extends into the interior of the cabinet and is connected to the input end of the motion conversion mechanism, and the output end of the motion conversion mechanism is connected to the second rack, which is used to convert the rotational motion of the wind cup into the linear motion of the second rack in the horizontal direction.

6. A power distribution cabinet with an energy-saving heat dissipation structure according to claim 5, characterized in that, The motion conversion mechanism includes a disc, a circular tube, a piston plate, a connecting pipe, a sliding sleeve, a second spring, and a sliding rod. The disc is fixed inside the cabinet and has an internal cavity. The rotating shaft of the wind cup passes through the disc and is rotatably connected to it in a sealed manner. Multiple sets of circular tubes are located inside the cavity and are circumferentially connected to the outside of the rotating shaft of the wind cup. The rotating shaft of the wind cup is hollow and communicates with each of the circular tubes. Each circular tube has a set of piston plates that are slidably and sealed inside it. The cavity is filled with transmission fluid, and the side end of the disc has a liquid outlet. One end of the connecting pipe is connected to the liquid outlet, and the other end is connected to the sliding sleeve. The second spring is located on the inner wall of the sliding sleeve near the connecting pipe. The sliding rod slides through the sliding sleeve, with one end connected to the second spring and the other end fixedly connected to the second rack.

7. A power distribution cabinet with an energy-saving heat dissipation structure according to claim 1, characterized in that, The reset component is a torsion spring, which is sleeved on the outside of the power input shaft. One end of the torsion spring is fixedly connected to the inner wall of the cabinet, and the other end is fixed to the power input shaft.

8. A power distribution cabinet with an energy-saving heat dissipation structure according to claim 1, characterized in that, The bottom of the water collection hopper is provided with a drain outlet, which is connected to a drain pipe. The drain pipe extends into the cabinet and connects to the heat dissipation pipe inside the cabinet. The rainwater collected by the water collection hopper flows into the heat dissipation pipe through the drain outlet and the drain pipe, and is used for liquid heat dissipation inside the cabinet.

9. A power distribution cabinet with an energy-saving heat dissipation structure according to claim 8, characterized in that, The upper end of the water collection hopper is equipped with a filter screen cover to prevent foreign objects from entering the water collection hopper.

10. A power distribution cabinet with an energy-saving heat dissipation structure according to claim 1, characterized in that, An angle sensor is provided on the power input shaft, and both the angle sensor and the cooling fan are electrically connected to the controller.

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