Switch cabinet with strong heat dissipation

Abstract

The application belongs to the technical field of switch cabinets, and particularly relates to a strong-heat-dissipation switch cabinet, which comprises a cabinet body, an air inlet device and a heat dissipation device, the inner cavity bottom end of the cabinet body is provided with an air inlet bin, one end of the air inlet bin is provided with an opening, the other end of the air inlet bin is provided with a wind collecting part in a protruding mode, the air inlet bin is provided with the air inlet device, the air inlet device comprises a cooling assembly and an air supply assembly, the cooling assembly is arranged at the opening end of the air inlet bin, and the air supply assembly is arranged in the wind collecting part at the other end of the air inlet bin; the cabinet body top end is provided with a heat dissipation opening, the heat dissipation opening is located above the wind collecting part, the cabinet body top is provided with a cover shell around the heat dissipation opening, the cover shell is provided with the heat dissipation device, the air inlet device can cool the air entering the cabinet body through the cooperation of the cooling assembly and the air supply assembly, the temperature of the cabinet body equipment is effectively reduced, the heat dissipation device adopts a movable folding structure, can carry out targeted and efficient heat dissipation treatment on the busbar contact position after being unfolded, greatly improves the cabinet internal heat dissipation efficiency, and guarantees the stable operation of the switch cabinet.

Description

Technical Field

[0001] This invention belongs to the field of switch cabinet technology, and specifically relates to a switch cabinet with strong heat dissipation. Background Technology

[0002] Switchgear is equipment that operates continuously and generates heat. Due to the cumulative effect of temperature rise, the internal temperature of the switchgear becomes excessively high, affecting the safe operation of the equipment. Especially in areas such as busbar connections, when the operating temperature at the joint exceeds 80℃, the metal of the joint will expand due to overheating, causing the contact surfaces to misalign, forming tiny gaps and leading to oxidation. When the load current decreases and the temperature drops back to the original contact position, the oxide film covering the contact surface prevents direct metal-to-metal contact as it was during the original installation. The increased contact resistance with each temperature cycle will increase the heat in the next cycle, further deteriorating the working condition of the joint, thus creating a vicious cycle. In traditional switchgear, the phases of the busbar are generally arranged longitudinally in sequence, resulting in contact points distributed at different heights, which is not conducive to heat dissipation.

[0003] Patent No. CN201711279598.2 discloses a sliding-type intelligent heat dissipation switchgear. In this application, heat dissipation components are respectively arranged on both sides of the switchgear, and the heat dissipation components on both sides are symmetrical. Through the sequential connection of the driving component, driven component, transmission component, and cover component, the whole unit forms a linkage. When the driving component is rotated, the motion state can be transmitted to the cover component, indirectly controlling the opening and closing of the cover component, thus achieving selective ventilation and heat dissipation. This application achieves ventilation, heat dissipation, and protection functions through movable heat dissipation components. While the cover component can expand to improve heat dissipation when the switchgear is under high load, the overall heat dissipation function is limited and cannot efficiently dissipate heat from high-heat components. Furthermore, relying solely on a simple heat dissipation structure without a corresponding air intake system cannot significantly improve the cooling effect. Summary of the Invention

[0004] To address the aforementioned problems, this invention discloses a switch cabinet with strong heat dissipation, which employs a high-efficiency air intake system in conjunction with movable heat dissipation components, thereby enabling efficient heat dissipation for high-heat components.

[0005] The specific technical solution is as follows:

[0006] A high-heat-dissipation switch cabinet includes a cabinet body, an air intake device, and a heat dissipation device. An air intake chamber is located at the bottom of the cabinet body. One end of the air intake chamber is open, and at least one air collecting section protrudes from the other end. One end of the air collecting section has an arc-shaped structure, and its top is higher than the top of the air intake chamber. The air intake device is located inside the air intake chamber. The air intake device includes a cooling component and an air supply component. The cooling component is located at the open end of the air intake chamber, and at least one set of air supply components is located in the air collecting section at the other end of the air intake chamber.

[0007] A heat dissipation vent is located at the top of the cabinet, above the air collection section. A cover is provided around the vent on the top of the cabinet, and the heat dissipation device is installed inside the cover. The heat dissipation device includes a folding heat dissipation frame, a drive device, and heat dissipation components. The folding heat dissipation frame includes an upper heat dissipation frame and a lower heat dissipation frame, which are horizontally stacked. Multiple sets of heat dissipation components are installed inside the upper and lower heat dissipation frames. One end of the upper and lower heat dissipation frames is movably connected by a first hinge component, and the other end of the upper heat dissipation frame is movably connected to the inner wall of the cover by a second hinge component. The second hinge component is driven by a drive device installed on the top of the cabinet, so that the drive device drives the upper heat dissipation frame to move. A transmission component is provided inside the upper heat dissipation frame. The two ends of the transmission component are respectively connected to the first and second hinge components, so that when the upper heat dissipation frame moves, it drives the lower heat dissipation frame to move, thereby realizing the unfolding and folding of the folding heat dissipation frame.

[0008] Furthermore, the cooling assembly includes a cooling plate, a circulating pump, and a liquid storage tank. The cooling plate is located at the bottom of the air inlet chamber. Several horizontally arranged heat exchange fins are integrally formed on the upper surface of the cooling plate. The cooling plate has an S-shaped cooling channel inside. One end of the cooling plate is connected to an inlet pipe and an outlet pipe, respectively. One end of the inlet pipe and the outlet pipe are connected to the two ends of the cooling channel. One end of the outlet pipe is connected to the bottom of the liquid storage tank installed on the outer wall of the cabinet. A cooling fan is installed at the top of the liquid storage tank, and the circulating pump is built into the liquid storage tank. The other end of the inlet pipe is connected to the outlet of the circulating pump, so that the circulating pump delivers the coolant in the liquid storage tank to the cooling plate through the inlet pipe and circulates the coolant through the outlet pipe.

[0009] Furthermore, the air supply assembly includes an axial fan, a vortex fan, and a fan motor. The upper end of the air collecting section is provided with an air outlet, and a grille bracket is provided at the air outlet. The fan motor is installed at the center of the bottom of the grille bracket. The output end of the fan motor is connected to a drive shaft. The drive shaft is arranged longitudinally, and the bottom end of the drive shaft is rotatably mounted on the bottom end of the air collecting section through a bearing. The axial fan and the vortex fan are respectively arranged at the upper and lower ends of the drive shaft. The vortex fan includes a fan blade and a base plate. The base plate has a circular structure, and the drive shaft runs through the middle of the base plate. Several fan blades are arranged in a ring along the upper edge of the base plate. The direction of each fan blade is inclined, and the bottom end of the fan blade is bent and fixedly connected to the base plate.

[0010] Furthermore, each of the upper and lower heat dissipation frames is provided with a receiving groove for installing the first hinge assembly at one end. The number of the first hinge assemblies is at least two and they are distributed left and right. The first hinge assembly includes two hinge plates, which are fixedly connected to the upper and lower heat dissipation frames respectively. A hinge shaft is provided through the hinge plate of the two first hinge assemblies. The hinge shaft is rotatably connected to the hinge plate on the upper heat dissipation frame and fixedly connected to the hinge plate on the lower heat dissipation frame, thereby realizing the hinge between the upper and lower heat dissipation frames.

[0011] Furthermore, there are at least two second hinge components distributed left and right. Each second hinge component includes two hinge seats, one of which is located on the inner wall of the housing and the other is located at one end of the upper heat sink frame. A hinge shaft is horizontally connected between the two hinge seats of the two second hinge components. The hinge shaft is rotatably connected to the hinge seat on the inner wall of the housing and fixedly connected to the hinge seat on the upper heat sink frame. One end of the hinge shaft is fixedly connected to the output shaft of the drive device, so that the drive device can drive the upper heat sink frame to rotate through the hinge shaft.

[0012] Furthermore, the upper and lower heat dissipation frames are equipped with four sets of heat dissipation components and partitions inside. The four sets of heat dissipation components are evenly distributed and separated by partitions. Each heat dissipation component includes several heat dissipation fins arranged in a row and a heat dissipation fan disposed at one end of the heat dissipation fins. The heat dissipation fan is fixed by a mounting bracket installed in the folding heat dissipation frame.

[0013] Furthermore, a horizontal mounting hole is provided through the partition of the upper heat dissipation frame. The mounting hole houses the transmission assembly, which includes a transmission shaft. The transmission shaft is rotatably mounted in the mounting hole via a bearing. A driven bevel gear is provided at one end of the transmission shaft near the second hinge assembly. A driving bevel gear is meshed with one side of the driven bevel gear. The driving bevel gear is mounted on the hinge shaft, enabling the hinge shaft to rotate and drive the transmission shaft to rotate. A worm gear is provided at one end of the transmission shaft near the first hinge assembly. A worm wheel is meshed with the lower end of the worm gear. The worm wheel is mounted on the hinge shaft, so that when the hinge shaft rotates, it synchronously drives the hinge shaft to rotate through the transmission assembly. This enables the upper heat dissipation frame to flip under the driving action of the drive device, and the lower heat dissipation frame to flip synchronously through the transmission assembly, thereby realizing the unfolding and folding of the folding heat dissipation frame.

[0014] Furthermore, the inner walls on both sides of the cover are provided with limiting blocks for limiting the upper heat dissipation frame.

[0015] Furthermore, both the upper and lower heat dissipation frames are rectangular structures with equal dimensions. When the folding heat dissipation frame is folded, the side surfaces of the upper and lower heat dissipation frames fit together. When the folding heat dissipation frame is unfolded, the end plates of the upper and lower heat dissipation frames fit together.

[0016] Furthermore, dustproof grilles are provided at the upper end of the heat dissipation vent and at one end of the air inlet.

[0017] The beneficial effects of this invention are reflected in:

[0018] (1) The present invention provides a heat dissipation device and an air inlet device at the upper and lower ends of the cabinet respectively. The air inlet device can cool the air entering the cabinet through the cooling component and the air supply component, thereby effectively reducing the temperature of the cabinet equipment. The heat dissipation device adopts a movable folding structure, which can perform targeted and efficient heat dissipation treatment at the busbar contact point after unfolding, greatly improving the heat dissipation efficiency inside the cabinet, avoiding overheating damage to equipment components, improving the reliability of the equipment, and ensuring the stable operation of the switch cabinet.

[0019] (2) The air supply component in the air inlet device of the present invention adopts a combination of axial flow fan and vortex fan. The axial flow fan delivers the air in the air inlet chamber to the center of the vortex fan, and then the axial flow fan delivers the cooled air to the cabinet. This can improve the air intake rate, improve the heat dissipation efficiency, reduce the workload of the heat dissipation device, and extend the service life of the heat dissipation device.

[0020] (3) The heat dissipation device of the present invention uses a folding heat dissipation frame in conjunction with heat dissipation components to perform heat dissipation treatment, so that the heat dissipation device can switch between two heat dissipation modes. When folded, the heat dissipation frame can perform heat dissipation treatment on the entire interior of the cabinet. When unfolded, the heat dissipation device can move the heat dissipation frame to one end of the busbar, so that when the equipment is running under high load, it can perform efficient heat dissipation treatment on high heat components, greatly improve the heat dissipation effect, reduce the workload of electrical components, and thus extend the service life of the equipment. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the structure of the present invention.

[0022] Figure 2 This is a side sectional view of the cabinet in this invention.

[0023] Figure 3 This is a schematic diagram of the unfolded structure of the heat dissipation bracket in this invention.

[0024] Figure 4 This is a cross-sectional view of the air intake device in this invention.

[0025] Figure 5 This is a side view of the air intake device in this invention.

[0026] Figure 6 This is a schematic diagram of the structure between the axial fan and the vortex fan in this invention.

[0027] Figure 7 This is a side view of the heat dissipation device in this invention.

[0028] Figure 8 This is a cross-sectional view of the upper heat dissipation frame in this invention.

[0029] Cabinet 1, air inlet 11, dustproof grille 111, air collection unit 112, air outlet 113, grille bracket 114, heat dissipation vent 12, cover 121, limit plate 122;

[0030] Air inlet device 2, cooling plate 21, heat exchange fins 211, cooling channel 212, liquid inlet pipe 213, liquid outlet pipe 214, circulating pump 22, liquid storage tank 23, cooling fan 231, axial flow fan 24, vortex fan 25, base plate 251, fan blade 252, fan motor 26, drive shaft 261;

[0031] Heat dissipation device 3, drive device 31, heat dissipation component 32, partition 321, heat dissipation fan 322, heat sink 323, mounting bracket 324, upper heat dissipation frame 33, hinge seat 331, hinge shaft 332, mounting hole 333, receiving groove 334, lower heat dissipation frame 34, hinge plate 341, hinge shaft 342, transmission shaft 351, driving bevel gear 352, driven bevel gear 353, worm gear 354, worm 355. Detailed Implementation

[0032] To make the technical solution of this invention clearer and more explicit, the invention will be further described below with reference to the accompanying drawings. Any solution derived by equivalent substitution and conventional reasoning of the technical features of this invention falls within the protection scope of this invention. The fixed connections and fixed installations mentioned in this invention are all common connection methods in the mechanical field, including welding, bolt and nut connections, and screw connections.

[0033] In the description of this invention, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention 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. Therefore, they should not be construed as limitations on this invention.

[0034] like Figure 1 As shown, a high-heat-dissipation switch cabinet includes a cabinet body 1, an air inlet device 2, and a heat dissipation device 3. An air inlet chamber 11 is provided at the bottom of the inner cavity of the cabinet body 1. One end of the air inlet chamber 11 is open, and the other end of the air inlet chamber 11 has three protruding air collecting parts 112. One end of the air collecting part 112 is arranged in an arc shape, and the top of the air collecting part 112 is higher than the top of the air inlet chamber 11. The air inlet device 2 is provided inside the air inlet chamber 11. The air inlet device 2 includes a cooling component and an air supply component. The cooling component is provided at the open end of the air inlet chamber 11, and the air supply component consists of three sets, which are provided in the three air collecting parts 112 at the other end of the air inlet chamber 11.

[0035] like Figure 4-5As shown, the cooling assembly includes a cooling plate 21, a circulating pump 22, and a liquid storage tank 23. The cooling plate 21 is located at the bottom of the air inlet chamber 11. Several horizontally arranged heat exchange fins 211 are integrally formed on the upper surface of the cooling plate 21, all facing the opening of the air inlet chamber 11. The cooling plate 21 has an S-shaped cooling channel 212 inside. One end of the cooling plate 21 is connected to an inlet pipe 213 and an outlet pipe 214. One end of the inlet pipe 213 and the outlet pipe 214 are respectively connected to both ends of the cooling channel 212. One end of the outlet pipe 214 is connected to a component installed in the cabinet 1. The bottom of the liquid storage tank 23 on the outer wall is connected, and a cooling fan 231 is installed on the upper end of the liquid storage tank 23. The cooling fan 231 dissipates heat and cools the cooling oil in the liquid storage tank 23. The liquid storage tank 23 has a built-in circulation pump 22. The inlet end of the circulation pump 22 is immersed in the cooling oil. The other end of the inlet pipe 213 is connected to the outlet end of the circulation pump 22, so that the circulation pump 22 delivers the coolant in the liquid storage tank 23 to the cooling plate 21 through the inlet pipe 213, and realizes the circulation of the coolant through the outlet pipe 214, thereby dissipating heat for the heat exchange fins 211 on the cooling plate 21.

[0036] like Figure 4-6 As shown, the air supply assembly includes an axial fan 24, a vortex fan 25, and a fan motor 26. An air outlet 113 is located at the upper end of the air collection section 112, and a grille bracket 114 is located at the air outlet 113. The fan motor 26 is mounted at the center of the bottom of the grille bracket 114. The output end of the fan motor 26 is connected to a drive shaft 261. The drive shaft 261 is longitudinally arranged, and its bottom end is rotatably mounted on the bottom end of the air collection section 112 via a bearing. An axial fan 24 and a vortex fan 25 are respectively installed at the upper and lower ends of the drive shaft 261. The fan 25 includes fan blades 252 and a base plate 251. The base plate 251 has a circular structure, and a drive shaft 261 is installed through the center of the base plate 251. Several fan blades 252 are arranged in a ring along the upper surface edge of the base plate 251. Each fan blade 252 is inclined, and the bottom end of the fan blade 252 is bent and fixedly connected to the base plate 251. Thus, when the vortex fan 25 rotates, it can transport air upward through the fan blades 252 and concentrate it towards the center, thereby facilitating the axial fan 24 to transport air upward.

[0037] like Figure 7-8As shown, a rectangular heat dissipation vent 12 is provided at the top of the cabinet 1. The heat dissipation vent 12 is located above the air collection part 112, which can improve heat dissipation efficiency. A cover 121 is provided around the heat dissipation vent 12 at the top of the cabinet 1. A heat dissipation device 3 is installed in the cover 121. The heat dissipation device 3 includes a folding heat dissipation frame, a drive device 31, and heat dissipation components 32. The folding heat dissipation frame includes an upper heat dissipation frame 33 and a lower heat dissipation frame 34. The upper heat dissipation frame 33 and the lower heat dissipation frame 34 are arranged horizontally. Multiple sets of heat dissipation components 32 are respectively installed in the upper heat dissipation frame 33 and the lower heat dissipation frame 34. One end of the upper heat dissipation frame 33 and the lower heat dissipation frame 34 are movably connected by a first hinge component. The other end of the upper heat dissipation frame 33 is movably connected to the inner wall of the cover 121 by a second hinge component. The second hinge component is driven by the drive device 31 installed at the top of the cabinet 1, so that the drive device 31 drives the upper heat dissipation frame 33 to move. The upper heat dissipation frame 33 is equipped with a transmission component. The two ends of the transmission component are respectively connected to the first hinge component and the second hinge component. When the upper heat dissipation frame 33 moves, it drives the lower heat dissipation frame 34 to move through the transmission component, thereby realizing the unfolding and folding of the folding heat dissipation frame. The inner walls on both sides of the cover 121 are provided with limiting blocks for limiting the upper heat dissipation frame 33, so that the folding heat dissipation frame can maintain a horizontal state after folding. At this time, the heat dissipation device 3 is in the global heat dissipation mode. Through the superposition of the two sets of heat dissipation components 32, the overall heat dissipation effect inside the cabinet 1 is improved. The unfolded folding heat dissipation frame is located at one end of the contact position of each phase of the busbar, realizing efficient heat dissipation treatment at the contact position of the busbar. The surface of one end of the unfolded upper heat dissipation frame 33 is attached to the inner wall of the heat dissipation port 12 for positioning. At this time, the heat dissipation device 3 is in the local heat dissipation mode. The two sets of heat dissipation components 32 are close to the busbar, improving the local heat dissipation effect.

[0038] The upper heat dissipation frame 33 and the lower heat dissipation frame 34 are provided with four sets of heat dissipation components 32 and partitions 321. The four sets of heat dissipation components 32 are evenly distributed and separated by the cross-shaped partitions 321. Each heat dissipation component 32 includes several heat dissipation fins 323 arranged in a row and a heat dissipation fan 322 set at one end of the heat dissipation fins 323. The heat dissipation fan 322 is fixed by a mounting bracket 324 installed in the folding heat dissipation frame.

[0039] Each end of the upper heat sink 33 and the lower heat sink 34 is provided with a receiving groove 334 for installing the first hinge assembly. There are two first hinge assemblies, which are distributed left and right. Each first hinge assembly includes two hinge plates 341. The two hinge plates 341 are fixedly connected to the upper heat sink 33 and the lower heat sink 34, respectively. A hinge shaft 342 is provided through the hinge plates 341 of the two first hinge assemblies. The hinge shaft 342 is rotatably connected to the hinge plates 341 on the upper heat sink 33, and the hinge shaft 342 is fixedly connected to the hinge plates 341 on the lower heat sink 34, so as to realize the hinge between the upper heat sink 33 and the lower heat sink 34.

[0040] There are two second hinge components, arranged left and right. Each second hinge component includes two hinge seats 331. One hinge seat 331 is located on the inner wall of the cover 121, and the other hinge seat 331 is located at one end of the upper heat dissipation frame 33. A hinge shaft 332 is horizontally connected between the two hinge seats 331 in the two second hinge components. The hinge shaft 332 is rotatably connected to the hinge seat 331 on the inner wall of the cover 121, and the hinge shaft 332 is fixedly connected to the hinge seat 331 on the upper heat dissipation frame 33. One end of the hinge shaft 332 is fixedly connected to the output shaft of the drive device 31. The drive device 31 uses a servo motor and a reducer to drive the hinge shaft 332 to rotate, so that the drive device 31 drives the upper heat dissipation frame 33 to rotate through the hinge shaft 332.

[0041] A horizontal mounting hole 333 is provided through the partition plate 321 of the upper heat dissipation frame 33. The mounting hole 333 is used to house the transmission assembly. The transmission assembly includes a transmission shaft 351, which is rotatably mounted in the mounting hole 333 via a bearing. A driven bevel gear 353 is provided at one end of the transmission shaft 351 near the second hinge assembly. A driving bevel gear 352 is meshed with one side of the driven bevel gear 353. The driving bevel gear 352 is mounted on the hinge shaft 332 to enable the hinge shaft 332 to rotate. This drives the drive shaft 351 to rotate; a worm gear 355 is provided at one end of the drive shaft 351 near the first hinge assembly, and a worm wheel 354 is meshed with the lower end of the worm gear 355. The worm wheel 354 is disposed on the hinge shaft 342, so that when the hinge shaft 332 rotates, it synchronously drives the hinge shaft 342 to rotate through the drive assembly. This enables the upper heat dissipation frame 33 to flip under the driving action of the drive device 31, and simultaneously drives the lower heat dissipation frame 34 to flip through the drive assembly, thereby realizing the unfolding and folding of the folding heat dissipation frame. Figure 2-3 As shown, different heat dissipation modes can be switched.

[0042] Both the upper heat sink 33 and the lower heat sink 34 are rectangular structures with equal dimensions. When the folding heat sink is folded, the side surfaces of the upper heat sink 33 and the lower heat sink 34 are fitted together. When the folding heat sink is unfolded, the worm gear 355, the worm wheel 354, and the first hinge assembly can all be stored in the receiving groove 334, so that the end plates of the upper heat sink 33 and the lower heat sink 34 can be fitted together.

[0043] The above description is merely a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in the present invention should be included within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope of the claims.

Claims

1. A high-heat-dissipation switch cabinet, comprising a cabinet body (1), an air intake device (2), and a heat dissipation device (3), characterized in that, The cabinet (1) has an air inlet chamber (11) at the bottom of its inner cavity. One end of the air inlet chamber (11) is open, and at least one air collecting part (112) protrudes from the other end of the air inlet chamber (11). One end of the air collecting part (112) is arc-shaped, and the top of the air collecting part (112) is higher than the top of the air inlet chamber (11). The air inlet device (2) is installed inside the air inlet chamber (11). The air inlet device (2) includes a cooling component and an air supply component. The cooling component is installed at the open end of the air inlet chamber (11), and the air supply component is at least one set and is installed in the air collecting part (112) at the other end of the air inlet chamber (11). A heat dissipation vent (12) is provided at the top of the cabinet (1), and the heat dissipation vent (12) is located above the air collection part (112). A cover (121) is provided around the heat dissipation vent (12) at the top of the cabinet (1). The heat dissipation device (3) is provided in the cover (121). The heat dissipation device (3) includes a folding heat dissipation frame, a drive device (31), and heat dissipation components (32). The folding heat dissipation frame includes an upper heat dissipation frame (33) and a lower heat dissipation frame (34). The upper heat dissipation frame (33) and the lower heat dissipation frame (34) are arranged horizontally. Multiple sets of heat dissipation components (32) are respectively provided in the upper heat dissipation frame (33) and the lower heat dissipation frame (34). 3) One end of the lower heat dissipation frame (34) is movably connected to the upper heat dissipation frame (33) through the first hinge assembly, and the other end of the upper heat dissipation frame (33) is movably connected to the inner wall of the cover (121) through the second hinge assembly. The second hinge assembly is driven by the drive device (31) installed on the top of the cabinet (1), so that the drive device (31) drives the upper heat dissipation frame (33) to move. The upper heat dissipation frame (33) is provided with a transmission assembly. The two ends of the transmission assembly are respectively connected to the first hinge assembly and the second hinge assembly, so that when the upper heat dissipation frame (33) moves, the lower heat dissipation frame (34) moves through the transmission assembly, so as to realize the unfolding and folding of the folding heat dissipation frame. The upper heat dissipation frame (33) and the lower heat dissipation frame (34) are each provided with a receiving groove (334) for installing the first hinge assembly at one end. The number of the first hinge assembly is at least two and they are distributed left and right. The first hinge assembly includes two hinge plates (341). The two hinge plates (341) are fixedly connected to the upper heat dissipation frame (33) and the lower heat dissipation frame (34) respectively. A hinge shaft (342) is provided through the hinge plate (341) of the two first hinge assemblies. The hinge shaft (342) is rotatably connected to the hinge plate (341) on the upper heat dissipation frame (33) and fixedly connected to the hinge plate (341) on the lower heat dissipation frame (34), so as to realize the hinge between the upper heat dissipation frame (33) and the lower heat dissipation frame (34). The number of the second hinge components is at least two and they are distributed on the left and right. Each second hinge component includes two hinge seats (331). One hinge seat (331) is disposed on the inner wall of the cover (121), and the other hinge seat (331) is disposed on one end of the upper heat sink frame (33). A hinge shaft (332) is horizontally connected between the two hinge seats (331) of the two second hinge components. The hinge shaft (332) is rotatably connected to the hinge seat (331) on the inner wall of the cover (121). The hinge shaft (332) is fixedly connected to the hinge seat (331) on the upper heat sink frame (33). One end of the hinge shaft (332) is fixedly connected to the output shaft of the drive device (31), so that the drive device (31) drives the upper heat sink frame (33) to rotate through the hinge shaft (332). The partition (321) of the upper heat dissipation frame (33) has a horizontally penetrating mounting hole (333), and the mounting hole (333) is used to set the transmission assembly. The transmission assembly includes a transmission shaft (351), and both ends of the transmission shaft (351) are respectively connected to the hinge shaft (332) and the hinge shaft (342).

2. The high-heat-dissipation switch cabinet according to claim 1, characterized in that, The cooling assembly includes a cooling plate (21), a circulating pump (22), and a liquid storage tank (23). The cooling plate (21) is located at the bottom of the air inlet chamber (11). The upper surface of the cooling plate (21) is integrally formed with a plurality of horizontally arranged heat exchange fins (211). The cooling plate (21) has a cooling channel (212) inside. One end of the cooling plate (21) is connected to an inlet pipe (213) and an outlet pipe (214). One end of the inlet pipe (213) and the outlet pipe (214) are respectively connected to the cooling channel (212). The two ends are connected. One end of the liquid outlet pipe (214) is connected to the bottom of the liquid storage tank (23) installed on the outer wall of the cabinet (1). A cooling fan (231) is installed on the upper end of the liquid storage tank (23), and the circulation pump (22) is built into the liquid storage tank (23). The other end of the liquid inlet pipe (213) is connected to the liquid outlet of the circulation pump (22), so that the circulation pump (22) transports the coolant in the liquid storage tank (23) to the cooling plate (21) through the liquid inlet pipe (213) and realizes the circulation of the coolant through the liquid outlet pipe (214).

3. The high-heat-dissipation switchgear according to claim 1, characterized in that, The air supply assembly includes an axial fan (24), a vortex fan (25), and a fan motor (26). An air outlet (113) is provided at the upper end of the air collection section (112). A grille bracket (114) is provided at the air outlet (113). The fan motor (26) is mounted at the center of the bottom of the grille bracket (114). The output end of the fan motor (26) is connected to a drive shaft (261). The drive shaft (261) is longitudinally arranged, and its bottom end is rotatably mounted on the air collection section (112) via a bearing. At the bottom end, the axial fan (24) and the vortex fan (25) are respectively arranged at the upper and lower ends of the drive shaft (261). The vortex fan (25) includes fan blades (252) and a base plate (251). The base plate (251) has a circular structure. The drive shaft (261) is arranged through the middle of the base plate (251). Several fan blades (252) are arranged in a ring on the upper surface edge of the base plate (251). The fan blades (252) are all rectangular in structure. The bottom end of the fan blades (252) is fixedly connected to the base plate (251).

4. The high-heat-dissipation switchgear according to claim 1, characterized in that, The upper heat dissipation frame (33) and the lower heat dissipation frame (34) are provided with four sets of heat dissipation components (32) and partitions (321). The four sets of heat dissipation components (32) are evenly distributed and separated by partitions (321). Each heat dissipation component (32) includes several heat dissipation fins (323) arranged in a row and a heat dissipation fan (322) set at one end of the heat dissipation fins (323). The heat dissipation fan (322) is fixed by a mounting bracket (324) installed in the folding heat dissipation frame.

5. The high-heat-dissipation switchgear according to claim 1, characterized in that, The drive shaft (351) is rotatably mounted in the mounting hole (333) via a bearing. A driven bevel gear (353) is provided at one end of the drive shaft (351) near the second hinge assembly. A driving bevel gear (352) is meshed with one side of the driven bevel gear (353). The driving bevel gear (352) is mounted on the hinge shaft (332), enabling the hinge shaft (332) to rotate and drive the drive shaft (351) to rotate. The drive shaft (351) is located near the first hinge assembly. One end is provided with a worm (355), and the lower end of the worm (355) is meshed with a worm wheel (354). The worm wheel (354) is set on the hinge shaft (342), so that when the hinge shaft (332) rotates, it drives the hinge shaft (342) to rotate synchronously through the transmission component. When the upper heat sink frame (33) is flipped under the driving action of the drive device (31), the lower heat sink frame (34) is flipped synchronously through the transmission component, thereby realizing the unfolding and folding of the folding heat sink.

6. The high-heat-dissipation switchgear according to claim 5, characterized in that, The inner walls on both sides of the cover (121) are provided with limiting blocks for limiting the upper heat dissipation frame (33).

7. The high-heat-dissipation switchgear according to claim 6, characterized in that, The upper heat dissipation frame (33) and the lower heat dissipation frame (34) are both rectangular structures with equal dimensions. When the folding heat dissipation frame is folded, the side surfaces of the upper heat dissipation frame (33) and the lower heat dissipation frame (34) are fitted together. When the folding heat dissipation frame is unfolded, the end plates of the upper heat dissipation frame (33) and the lower heat dissipation frame (34) are fitted together.

8. The high-heat-dissipation switchgear according to claim 1, characterized in that, Dustproof grilles (111) are provided at the upper end of the heat dissipation vent (12) and at one end of the air inlet (11).

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