Liquid cooling device for an electromechanical device

Abstract

The application discloses a liquid cooling heat dissipation device of electromechanical equipment, and relates to the field of heat dissipation of electromechanical equipment, which comprises a liquid cooling box and a heat exchanger, one side of the liquid cooling box close to the core heating element of the electromechanical equipment is provided with a cooling plate, the side of the cooling plate close to the liquid cooling box is fixed with a plurality of fins, two serpentine liquid cooling pipes are arranged on the fins, horizontal plates are arranged above and below the fins, vertical side plates are fixed to the sides of the two horizontal plates away from the cooling plate, a protective shell is fixed to the side of the liquid cooling box away from the cooling plate through screws, the two push blocks penetrate the wall of the liquid cooling box and are located in the protective shell, and a driving assembly is arranged in the protective shell, the application realizes dynamic and accurate adjustment of the gap between the cooling plate and the surface of the heating element, when the temperature of the core heating element rises, the cooling plate is close to the heating surface, the heat exchange gap is reduced to strengthen heat transfer, when the load is low and the temperature is low, the cooling plate is away from the heating surface, an air buffer layer is formed, and stable and reliable operation of the electromechanical equipment is ensured.

Description

Technical Field

[0001] This invention relates to the technical field of heat dissipation for electromechanical equipment, specifically a liquid cooling heat dissipation device for electromechanical equipment. Background Technology

[0002] Electromechanical equipment refers to equipment or systems that combine mechanical and electrical technologies. Such equipment typically includes mechanical and electrical components and is designed to perform specific functions or tasks. During the operation of electromechanical equipment, a large amount of heat is generated. If this heat cannot be dissipated in a timely and effective manner, it will lead to excessively high temperatures in the electromechanical equipment, seriously affecting its performance and service life.

[0003] A liquid cooling heat dissipation device for electromechanical equipment described in the prior art includes a liquid cooling head, a heat pipe, a heat exchanger, a cooling fan, a flow sensor, and a controller. The liquid cooling head, heat pipe, and heat exchanger are connected end to end to form a closed loop. The cooling fan is installed on the heat exchanger, and the flow sensor is installed on the heat transfer fluid passage of the heat pipe. The heat pipe adopts a double-layer nested structure with gaps between them. The liquid cooling head, cooling fan, flow sensor, and controller are electrically connected.

[0004] While the aforementioned technologies reduce unnecessary heat loss within the electromechanical equipment during the heat transfer fluid circulation process and improve the heat dissipation effect of the device through the honeycomb structure, the installation position of the cooling plate is fixed and cannot flexibly adapt to the heat fluctuations of the electromechanical equipment under different operating conditions. For example, when the equipment is running at low load and low temperature, the cooling plate is in close contact with the heat-generating surface, which can easily cause condensation due to the surface temperature being lower than the dew point temperature, posing a risk of short circuit or equipment getting damp. Summary of the Invention

[0005] Based on this, the purpose of the present invention is to provide a liquid cooling heat dissipation device for electromechanical equipment to solve the technical problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution:

[0007] A liquid cooling heat dissipation device for electromechanical equipment includes a liquid cooling box and a heat exchanger. The upper and lower surfaces of the liquid cooling box are mounted on the frame of the electromechanical equipment via brackets. The liquid cooling box is connected to the heat exchanger via two heat-conducting pipes. A cooling plate is provided on the side of the liquid cooling box near the core heat-generating element of the electromechanical equipment. Several fins are fixed on the side of the cooling plate near the liquid cooling box. A through groove is opened in the wall of the liquid cooling box. Several fins pass through the through groove and are located inside the liquid cooling box. Two serpentine liquid cooling pipes are threaded through the several fins. Horizontal plates are provided above and below the several fins. Vertical side plates are fixed on the side of the two horizontal plates away from the cooling plate. Push blocks are symmetrically fixed on the side of the side plates away from the fins. A protective shell is fixed to the side of the liquid cooling box away from the cooling plate by screws. Both push blocks penetrate the wall of the liquid cooling box and are located inside the protective shell.

[0008] The protective shell is equipped with a driving component, which is used to push the cooling plate closer to the heat source when the temperature of the core heating element rises, thereby reducing the heat exchange gap. When the load is low and the temperature is low, the cooling plate moves away to form an air buffer layer to prevent condensation.

[0009] Specifically, in this technical solution, the other ends of the two horizontal plates penetrate the wall of the liquid cooling box and are fixedly connected to the cooling plate. Connecting rods are welded to both sides of the side plate. Movable plates are symmetrically arranged on both sides inside the liquid cooling box. The two movable plates are fixedly connected to the side plate through connecting rods. Guide rods are provided on both movable plates. Supporting springs are provided on the side of the two movable plates away from the protective shell.

[0010] Specifically, in this technical solution, both movable plates are slidably connected to the guide rods, both ends of the two guide rods are fixedly connected to the inner wall of the liquid cooling box, both support springs are sleeved on the guide rods, and both ends of the two support springs are fixedly connected to the inner wall of the liquid cooling box and the outer wall of the movable plate, respectively.

[0011] Specifically, the driving assembly includes a drive motor, a first rotating shaft, and a second rotating shaft. The first rotating shaft is positioned above the second rotating shaft and is parallel to it. Both ends of the first and second rotating shafts are rotatably connected to the inner wall of the protective shell. A transmission wheel is fixedly fitted onto the outer wall of one end of each of the first and second rotating shafts. The two transmission wheels are connected by a transmission chain. The drive motor is fixed to the side wall of the protective shell with screws. The output end of the drive motor passes through the shell wall and is connected to a flange at one end of the second rotating shaft. A cam is fixedly fitted onto the middle section of both the first and second rotating shafts.

[0012] Specifically, in this technical solution, the convex ends of both cams are matched with the corresponding push blocks, and the corners of both push blocks are rounded.

[0013] Specifically, in this technical solution, the outer wall of the second rotating shaft is fixedly fitted with rope winding rollers on both sides of the cam, and pull ropes are wound on both of the rope winding rollers. The inner bottom of the protective shell is provided with a shaft parallel to the second rotating shaft. Both ends of the shaft are rotatably connected to the inner wall of the protective shell, and the ends of the two pull ropes extend through the outer wall of the shaft, penetrating the wall of the liquid cooling box and extending into the interior.

[0014] Specifically, the liquid cooling box has ventilation holes at the bottom of both side walls, and baffles are provided inside the liquid cooling box at the ventilation holes. The two baffles are fixedly connected by a horizontal plate, and the ends of the two pull ropes are fixedly connected to the horizontal plate. The bottom ends of the two baffles are embedded with ball bearings that roll in contact with the inner bottom wall of the liquid cooling box.

[0015] Specifically, in this technical solution, a return spring is provided on the horizontal plate at the outside of the two pull ropes. The two ends of the two return springs are fixedly connected to the outer wall of the horizontal plate and the inner wall of the liquid cooling box, respectively. Dustproof nets are embedded in the two ventilation holes.

[0016] Specifically, in this technical solution, a flexible thermal pad is attached to the side of the cooling plate near the core heat-generating element of the electromechanical equipment. The thermal pad is made of silicone and ceramic particles and has a thickness of 1.5mm.

[0017] Specifically, in this technical solution, each end of the two liquid cooling pipes is connected to a flexible hose, and the ends of the two flexible hoses away from the liquid cooling pipes extend through the liquid cooling box to the outside and are connected to the heat conduction pipe.

[0018] In summary, the present invention has the following main advantages: It achieves dynamic and precise adjustment of the gap between the cooling plate and the surface of the heating element through a drive assembly. When the temperature of the core heating element rises, the drive motor drives the rotating shaft and cam to rotate. The cam's convex end pushes the push block, which, through the side plate and horizontal plate, moves the cooling plate closer to the heating surface, reducing the heat exchange gap and enhancing heat transfer. At low load and low temperature, the drive motor rotates in the opposite direction, the cam's convex end disengages from the push block, and the support spring resets, pushing the movable plate and cooling plate away from the heating surface, forming an air buffer layer. This prevents condensation and ensures the stable and reliable operation of the electromechanical equipment.

[0019] In addition, the flexible thermal pad can effectively fill the tiny gaps between the cooling plate and the core heating element, improving heat transfer efficiency. The combination of silicone and ceramic particles ensures good thermal conductivity while also possessing a certain degree of flexibility and insulation. Meanwhile, when the cooling plate approaches the heating surface, the second rotating shaft drives the rope-winding roller to rotate and wind the rope. The rope pulls the horizontal plate and baffle, opening the ventilation holes, promoting air circulation in the liquid cooling box, and further enhancing the heat dissipation effect. Attached Figure Description

[0020] Figure 1This is a schematic diagram of the overall orthogonal structure of the device of the present invention;

[0021] Figure 2 This is a schematic diagram of the overall oblique axonometric structure of the device of the present invention;

[0022] Figure 3 This is a schematic diagram of the orthogonal cross-sectional structure of the liquid cooling box of the present invention;

[0023] Figure 4 This is a schematic diagram of the orthogonal axonometric structure of the cooling plate of the present invention;

[0024] Figure 5 This is a top view cross-sectional structural diagram of the liquid cooling box of the present invention;

[0025] Figure 6 This is a schematic diagram of the cooling plate and side plate separation structure of the present invention;

[0026] Figure 7 This is a schematic diagram of the drive assembly and baffle structure of the present invention.

[0027] Figure Descriptions: 1. Liquid cooling box; 101. Cooling plate; 1011. Thermal pad; 102. Fin; 1021. Liquid cooling pipe; 103. Protective shell; 1031. Shaft; 104. Ventilation hole; 1041. Dustproof net; 2. Heat exchanger; 3. Thermal pipe; 301. Flexible hose; 4. Horizontal plate; 401. Side plate; 402. Push block; 403. Connecting rod; 404. Movable plate; 5. Guide rod; 501. Support spring; 6. Drive assembly; 601. Drive motor; 602. First rotating shaft; 603. Second rotating shaft; 604. Cam; 605. Transmission wheel; 6051. Transmission chain; 606. Rope winding roller; 6061. Pull rope; 7. Baffle; 701. Horizontal plate; 702. Return spring. Detailed Implementation

[0028] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0029] The embodiments of the present invention will now be described.

[0030] In this embodiment, please refer to Figure 1 - Figure 6As shown, a liquid cooling heat dissipation device for electromechanical equipment includes a liquid cooling box 1 and a heat exchanger 2. The upper and lower surfaces of the liquid cooling box 1 are mounted on the frame of the electromechanical equipment via brackets. The liquid cooling box 1 is connected to the heat exchanger 2 through two heat-conducting pipes 3. A cooling plate 101 is provided on the side of the liquid cooling box 1 near the core heating element of the electromechanical equipment. A flexible thermally conductive pad 1011 is attached to the side of the cooling plate 101 near the core heating element of the electromechanical equipment. The thermally conductive pad 1011 is made of silicone and ceramic particles and has a thickness of 1.5 mm. An NTC thermistor is attached to the surface of the core heating element of the electromechanical equipment. Several fins 102 are fixed on the side of the cooling plate 101 near the liquid cooling box 1. A through groove is opened in the box wall of the liquid cooling box 1, through which the fins 102 pass. The through-slot is located inside the liquid cooling box 1. Two serpentine liquid cooling pipes 1021 are threaded through several fins 102. The two ends of the two liquid cooling pipes 1021 are respectively connected to flexible hoses 301. The ends of the two flexible hoses 301 away from the liquid cooling pipes 1021 extend through the liquid cooling box 1 to the outside and are connected to the heat conduction pipes 3. A pump body is installed on one heat conduction pipe 3. Horizontal plates 4 are provided above and below several fins 102. Vertical side plates 401 are fixed on the side of the two horizontal plates 4 away from the cooling plate 101. Push blocks 402 are symmetrically fixed on the side of the side plates 401 away from the fins 102. A protective shell 103 is fixed to the side of the liquid cooling box 1 away from the cooling plate 101 by screws. The two push blocks 402 penetrate the box wall of the liquid cooling box 1 and are located inside the protective shell 103.

[0031] The other ends of the two horizontal plates 4 penetrate through the wall of the liquid cooling box 1 and are fixedly connected to the cooling plate 101. The two side walls of the side plate 401 are welded with connecting rods 403. The two sides of the interior of the liquid cooling box 1 are symmetrically provided with movable plates 404. The two movable plates 404 are fixedly connected to the side plate 401 through the connecting rods 403. The two movable plates 404 are provided with guide rods 5. The side of the two movable plates 404 away from the protective shell 103 is provided with a support spring 501. The two movable plates 404 are slidably connected to the guide rods 5. The two ends of the two guide rods 5 are fixedly connected to the inner wall of the liquid cooling box 1. The two support springs 501 are sleeved on the guide rods 5, and the two ends of the two support springs 501 are fixedly connected to the inner wall of the liquid cooling box 1 and the outer wall of the movable plate 404, respectively.

[0032] The protective shell 103 is equipped with a drive assembly 6. The drive assembly 6 is used to push the cooling plate 101 closer to the heat source when the temperature of the core heating element rises, thereby reducing the heat exchange gap. When the load is low and the temperature is low, the cooling plate 101 moves away to form an air buffer layer to prevent condensation. It should be noted that the electrical components of this liquid cooling heat dissipation device are all controlled by the controller of the electromechanical equipment.

[0033] When the electromechanical equipment starts to operate, the core heating element generates heat. The NTC thermistor monitors its temperature change in real time and feeds the data back to the controller of the electromechanical equipment. When the equipment is under low load and low temperature conditions, the support spring 501 is in a naturally extended state. Through the movable plate 404 and the connecting rod 403, the side plate 401, the horizontal plate 4 and the cooling plate 101 are kept away from the core heating element of the electromechanical equipment. An air buffer layer is formed between the cooling plate 101 and the flexible heat-conducting pad 1011 on the surface of the heating element to prevent condensation.

[0034] When the operating load of the core heating element of the electromechanical equipment increases and the surface temperature rises, the NTC thermistor detects that the temperature rise has reached the set threshold. When this temperature rise reaches the set threshold, the controller will start the drive motor 601 and pump body of the drive assembly 6. The first rotating shaft 602 and the second rotating shaft 603 drive the cam 604 to rotate, so that the convex end of the cam 604 contacts the push block 402 and pushes the push block 402 to move horizontally. When the push block 402 moves, it drives the side plate 401 to move. The side plate 401 pushes the cooling plate 101 closer to the core heating element through the horizontal plate 4. At the same time, the movable plate 404 slides along the guide rod 5 under the drive of the connecting rod 403, compressing the support spring 501. The cooling plate 101 gradually approaches the core heating element. The flexible heat-conducting pad 1011 is tightly attached to the surface of the core heating element, filling the tiny gaps and enhancing the heat transfer efficiency.

[0035] When the pump is running, the coolant flows into the serpentine liquid cooling pipe 1021 through the heat pipe 3 and the hose 301. At this time, the heat of the heating element is transferred to the cooling plate 101 through the heat-conducting pad 1011, and then to the coolant in the liquid cooling pipe 1021 through the fins 102 on the cooling plate 101. The high-temperature coolant is transported to the heat exchanger 2 for heat dissipation through the heat pipe 3, and then driven back by the pump to complete the efficient liquid cooling cycle, thereby realizing the dynamic and precise adjustment of the gap between the cooling plate 101 and the surface of the heating element.

[0036] Please see Figure 2 , Figure 3 and Figure 7 As shown, the drive assembly 6 includes a drive motor 601, a first rotating shaft 602, and a second rotating shaft 603. The first rotating shaft 602 is located above the second rotating shaft 603 and is arranged in parallel. Both ends of the first rotating shaft 602 and the second rotating shaft 603 are rotatably connected to the inner wall of the protective shell 103. A transmission wheel 605 is fixedly sleeved on the outer wall of one end of the first rotating shaft 602 and the second rotating shaft 603. The two transmission wheels 605 are connected by a transmission chain 6051. The drive motor 601 is fixed to the side wall of the protective shell 103 by screws. The output end of the drive motor 601 passes through the shell wall and is connected to the flange at one end of the second rotating shaft 603. A cam 604 is fixedly sleeved in the middle section of both the first rotating shaft 602 and the second rotating shaft 603.

[0037] The protruding ends of the two cams 604 are matched with the corresponding push blocks 402. The corners of the two push blocks 402 are rounded. The outer wall of the second rotating shaft 603 is fixedly fitted with rope winding rollers 606 on both sides of the cams 604. Pull ropes 6061 are wound on the two rope winding rollers 606. The inner bottom of the protective shell 103 is provided with a shaft 1031 parallel to the second rotating shaft 603 below. Both ends of the shaft 1031 are rotatably connected to the inner wall of the protective shell 103. The ends of the two pull ropes 6061 pass through the outer wall of the shaft 1031, penetrate the wall of the liquid cooling box 1, and extend into the interior.

[0038] Ventilation holes 104 are provided at the bottom of both side walls of the liquid cooling box 1. Baffles 7 are provided at the ventilation holes 104 inside the liquid cooling box 1. The two baffles 7 are fixedly connected by a horizontal plate 701. The ends of the two pull ropes 6061 are fixedly connected to the horizontal plate 701. The bottom of the two baffles 7 are embedded with ball bearings that roll in contact with the inner bottom wall of the liquid cooling box 1. The horizontal plate 701 is provided with a return spring 702 outside the two pull ropes 6061. The two ends of the two return springs 702 are fixedly connected to the outer wall of the horizontal plate 701 and the inner wall of the liquid cooling box 1, respectively. Dustproof nets 1041 are embedded in the two ventilation holes 104.

[0039] When the drive motor 601 starts, its output end drives the second rotating shaft 603 to rotate. The second rotating shaft 603 drives the first rotating shaft 602 to rotate synchronously through the transmission wheel 605 and the transmission chain 6051. As the first rotating shaft 602 and the second rotating shaft 603 rotate, the cam 604 in the middle of them rotates synchronously. During the rotation of the cam 604, its convex end will gradually approach and push the push block 402, so that the push block 402 moves horizontally within the protective shell 103 (the edges and corners are rounded to reduce friction). The movement of the push block 402 drives the side plate 401 to move. The side plate 401 then pushes the cooling plate 101 closer to the core heat-generating element through the horizontal plate 4.

[0040] Simultaneously, the rotation of the second rotating shaft 603 will also drive the two rope-winding rollers 606 on its outer wall to rotate. When the rope-winding rollers 606 rotate, they will wind the pull rope 6061 wound on them. As the pull rope 6061 is wound, it will pull the horizontal plate 701 to move. When the horizontal plate 701 is pulled, it will drive the two baffles 7 to move. Since the bottom end of the baffle 7 is embedded with ball bearings that roll in contact with the inner bottom wall of the liquid cooling box 1, the baffle 7 can move relatively smoothly. After the two baffles 7 move, the original The ventilation hole 104, which was blocked by the baffle 7, is opened. After the ventilation hole 104 is opened, the air circulation inside the liquid cooling box 1 is promoted. The cold air from the outside can enter the liquid cooling box 1 through the ventilation hole 104 and exchange heat with the liquid cooling pipe 1021 and fins 102 to remove heat and further enhance the heat dissipation effect. The dustproof net 1041 inside the ventilation hole 104 can prevent dust and other impurities from entering the liquid cooling box 1, ensuring the cleanliness of the liquid cooling box 1 and avoiding the impact of dust accumulation on heat dissipation efficiency.

[0041] When the temperature of the core heating element of the electromechanical equipment decreases, and the NTC thermistor detects that the temperature has dropped below the set threshold, the controller will control the drive motor 601 to rotate in the opposite direction. The convex end of the cam 604 gradually disengages from the push block 402. At this time, the compressed support spring 501 begins to reset, pushing the movable plate 404 to slide along the guide rod 5. The movable plate 404 drives the side plate 401, the horizontal plate 4, and the cooling plate 101 away from the core heating element of the electromechanical equipment through the connecting rod 403, forming an air buffer layer again to prevent condensation.

[0042] At the same time, the second rotating shaft 603 rotates in the opposite direction, causing the rope roller 606 to rotate in the opposite direction. The rope 6061 gradually loosens, and the horizontal plate 701 moves in the opposite direction under the action of the reset spring 702, which drives the two baffles 7 to block the ventilation hole 104 again, reducing unnecessary air circulation and reducing energy loss.

[0043] The working principle of this invention is as follows:

[0044] When the electromechanical equipment starts to operate, the core heating element generates heat. The NTC thermistor monitors its temperature change in real time and feeds the data back to the controller of the electromechanical equipment. When the equipment is under low load and low temperature conditions, the support spring 501 is in a naturally extended state. Through the movable plate 404 and the connecting rod 403, the side plate 401, the horizontal plate 4 and the cooling plate 101 are kept away from the core heating element of the electromechanical equipment. An air buffer layer is formed between the cooling plate 101 and the flexible heat-conducting pad 1011 on the surface of the heating element to prevent condensation.

[0045] When the operating load of the core heat-generating component of the electromechanical equipment increases and the surface temperature rises, the NTC thermistor detects that the temperature rise has reached a set threshold. The controller then activates the drive motor 601 and pump of the drive assembly 6. With the pump running, coolant flows through the heat pipe 3 and hose 301 into the serpentine liquid cooling pipe 1021. The output of the drive motor 601 drives the second shaft 603 to rotate. The second shaft 603, through the transmission wheel 605 and transmission chain 6051, drives the first shaft 602 to rotate synchronously. As the first shaft 602 and the second shaft 603 rotate, the cam 604 in the middle of both rotates synchronously. During the rotation of the cam 604, its protruding end gradually approaches and pushes the push block 402, causing the push block 402 to move horizontally within the protective shell 103. The movement of the push block 402 drives the side plate 401 to move, and the side plate 401 pushes the cooling plate 101 closer to the core heating element through the horizontal plate 4. At this time, the heat of the heating element is transferred to the cooling plate 101 through the heat conduction pad 1011, and then transferred to the coolant in the liquid cooling pipe 1021 through the fins 102 on the cooling plate 101. The high-temperature coolant is transported to the heat exchanger 2 for heat dissipation through the heat conduction pipe 3, and then driven back by the pump body to complete the high-efficiency liquid cooling cycle.

[0046] Simultaneously, the rotation of the second rotating shaft 603 will also drive the two rope-winding rollers 606 on its outer wall to rotate. When the rope-winding rollers 606 rotate, they will wind the pull rope 6061 wound on them. As the pull rope 6061 is wound, it will pull the horizontal plate 701 to move. When the horizontal plate 701 is pulled, it will drive the two baffles 7 to move. After the two baffles 7 move, the ventilation hole 104 that was originally blocked by the baffles 7 will be opened. After the ventilation hole 104 is opened, it promotes air circulation in the liquid cooling box 1. The cold air from the outside can enter the liquid cooling box 1 through the ventilation hole 104 and exchange heat with the liquid cooling pipe 1021 and fins 102, taking away heat and further enhancing the heat dissipation effect. The dustproof net 1041 inside the ventilation hole 104 can prevent dust and other impurities from entering the liquid cooling box 1, ensuring the cleanliness of the liquid cooling box 1 and avoiding the impact of dust accumulation on heat dissipation efficiency.

[0047] Although embodiments of the present invention have been shown and described, these specific embodiments are merely explanations of the invention and are not intended to limit it. The specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. After reading this specification, those skilled in the art may make modifications, substitutions, and variations to the embodiments as needed without departing from the principles and spirit of the invention, but such modifications, substitutions, and variations are protected by patent law as long as they are within the scope of the claims of the present invention.

Claims

1. A liquid cooling heat dissipation device for electromechanical equipment, comprising a liquid cooling box (1) and a heat exchanger (2), wherein the upper and lower surfaces of the liquid cooling box (1) are mounted on the frame of the electromechanical equipment via brackets, the liquid cooling box (1) is connected to the heat exchanger (2) via two heat-conducting pipes (3), and a cooling plate (101) is provided on the side of the liquid cooling box (1) near the core heat-generating element of the electromechanical equipment, characterized in that, The cooling plate (101) has several fins (102) fixed on the side near the liquid cooling box (1). The wall of the liquid cooling box (1) has a through groove. The several fins (102) pass through the through groove and are located inside the liquid cooling box (1). Two serpentine liquid cooling tubes (1021) are threaded through the several fins (102). Horizontal plates (4) are provided above and below the several fins (102). Vertical side plates (401) are fixed on the side of the two horizontal plates (4) away from the cooling plate (101). Push blocks (402) are symmetrically fixed on the side of the side plates (401) away from the fins (102). A protective shell (103) is fixed on the side of the liquid cooling box (1) away from the cooling plate (101) by screws. Both push blocks (402) pass through the wall of the liquid cooling box (1) and are located inside the protective shell (103). The protective shell (103) is provided with a drive assembly (6). The drive assembly (6) is used to push the cooling plate (101) closer to the heat source when the temperature of the core heating element rises, thereby reducing the heat exchange gap. When the load is low and the temperature is low, the cooling plate (101) moves away to form an air buffer layer to prevent condensation. The drive assembly (6) includes a drive motor (601), a first rotating shaft (602), and a second rotating shaft (603). The first rotating shaft (602) is located above the second rotating shaft (603) and is arranged in parallel. Both ends of the first rotating shaft (602) and the second rotating shaft (603) are rotatably connected to the inner wall of the protective shell (103). A transmission wheel (605) is fixedly sleeved on the outer wall of one end of the first rotating shaft (602) and the second rotating shaft (603). The two transmission wheels (605) are connected by a transmission chain (6051). The drive motor (601) is fixed to the side wall of the protective shell (103) by screws. The output end of the drive motor (601) passes through the shell wall and is connected to the flange at one end of the second rotating shaft (603). A cam (604) is fixedly sleeved at the middle section of the first rotating shaft (602) and the second rotating shaft (603). The convex ends of the two cams (604) are matched with the corresponding push blocks (402). The outer wall of the second rotating shaft (603) is fixedly fitted with rope winding rollers (606) on both sides of the cam (604). Each of the two rope winding rollers (606) is wound with a pull rope (6061). The inner bottom of the protective shell (103) is provided with a shaft (1031) below the second rotating shaft (603). Both ends of the shaft (1031) are rotatably connected to the inner wall of the protective shell (103). The ends of the two pull ropes (6061) pass through the outer wall of the shaft (1031) and extend into the interior of the liquid cooling box (1). Ventilation holes (104) are provided at the bottom of both sides of the liquid cooling box (1). Baffles (7) are provided at the ventilation holes (104) inside the liquid cooling box (1). The two baffles (7) are fixedly connected by a horizontal plate (701). The ends of the two pull ropes (6061) are fixedly connected to the horizontal plate (701). The bottom ends of the two baffles (7) are embedded with ball bearings that roll in contact with the inner bottom wall of the liquid cooling box (1). The horizontal plate (701) is provided with a return spring (702) located outside the two pull ropes (6061). The two ends of the two return springs (702) are fixedly connected to the outer wall of the horizontal plate (701) and the inner wall of the liquid cooling box (1), respectively. The two ventilation holes (104) are each embedded with a dustproof net (1041).

2. The liquid cooling heat dissipation device for electromechanical equipment according to claim 1, characterized in that, The other ends of the two horizontal plates (4) are fixedly connected to the cooling plate (101) through the wall of the liquid cooling box (1). The two side walls of the side plate (401) are welded with connecting rods (403). The liquid cooling box (1) is symmetrically provided with movable plates (404) on both sides inside. The two movable plates (404) are fixedly connected to the side plate (401) through the connecting rods (403). The two movable plates (404) are provided with guide rods (5). The side of the two movable plates (404) away from the protective shell (103) is provided with a support spring (501).

3. The liquid cooling heat dissipation device for electromechanical equipment according to claim 2, characterized in that, Both movable plates (404) are slidably connected to the guide rods (5), and both ends of the two guide rods (5) are fixedly connected to the inner wall of the liquid cooling box (1). Both support springs (501) are sleeved on the guide rods (5), and both ends of the two support springs (501) are fixedly connected to the inner wall of the liquid cooling box (1) and the outer wall of the movable plate (404), respectively.

4. The liquid cooling heat dissipation device for electromechanical equipment according to claim 1, characterized in that, The corners of both push blocks (402) are rounded.

5. A liquid cooling heat dissipation device for electromechanical equipment according to claim 1, characterized in that, A flexible thermal pad (1011) is attached to the side of the cooling plate (101) close to the core heat-generating element of the electromechanical equipment. The thermal pad (1011) is made of silicone and ceramic particles and has a thickness of 1.5 mm.

6. The liquid cooling heat dissipation device for electromechanical equipment according to claim 1, characterized in that, The two ends of the two liquid cooling pipes (1021) are respectively connected to hoses (301), and the ends of the two hoses (301) away from the liquid cooling pipes (1021) extend through the liquid cooling box (1) to the outside and are connected to the heat conduction pipe (3).

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