High-temperature protection device for bullet train heater and cooling method

Abstract

The invention discloses a high-temperature protection device for a bullet train heater and a cooling method, and belongs to the technical field of bullet train heaters, the high-temperature protection device comprises a water tank, the left side of the water tank is fixedly connected with a working pipe, the upper surface of the water tank is connected with a tank cover, the right side of the water tank is fixedly connected with a water pump, and the surface of the working pipe is fixedly connected with a hose; when working, the hose is wound and attached to the surface of the bullet train heater, water cooling is conducted on the bullet train heater, and the tail end of the hose is fixedly connected with the right side of the water pump. When the high-temperature protection device for the bullet train heater works, the hose is wound and attached to the outer surface of the bullet train heater, the water pump is started during cooling, water flow in the water tank circulates in the water tank and the hose at the moment, the water cooling effect on the bullet train heater is achieved, and in the process, the water flow drives the connecting shaft to rotate through the water wheel, so that the water cooling effect is achieved. At the moment, the water stirring plate does reciprocating rectilinear motion in the horizontal direction, and the effects of shaking the water flow and cooling the water flow in the water tank are achieved.

Description

Technical Field

[0001] The present invention relates to the technical field of high-speed train heaters, and specifically to a high-temperature protection device and a temperature reduction method for high-speed train heaters. Background Art

[0002] During the operation of high-speed trains, due to the large temperature difference between the inside and outside, it is necessary to adjust the temperature in a timely manner, and thus high-speed train heaters are required. When the high-speed train heater is working, it can cooperate with the air-conditioning system in the car to automatically adjust the temperature in the car, making the temperature in the car stable and improving the comfort of passengers. The high-speed train heater has the advantages of high efficiency and stability. When the high-speed train heater is working, electrical energy is converted into heat energy. If the heat cannot be dissipated in time, the temperature of the heating element will continue to rise. When the high-speed train heater is in a high-temperature state for a long time, it will affect the electronic devices inside the high-speed train heater. Therefore, a high-temperature protection device for the high-speed train heater needs to be used in combination. After the high-temperature protection device of the high-speed train heater has been used for a long time, its own heat will also rise. For example, a high-temperature protection device for a high-speed train air conditioner electric heater with the application number 202223035987.X is convenient for the installation of the electric heater when it is working, and the installation is convenient and fast. At the same time, it has the installation of a temperature sensor, which can monitor the temperature of the electric heater in real time and automatically cool down or cut off the power supply when the temperature is too high, ensuring the normal use of the electric heater and improving the practicability of the device. There is also a temperature protection device for a high-speed train electric heater with the application number 201520308216.4, which is a temperature secondary protection device for the electric heater by connecting a high-power temperature fuse in series in the main electric heating circuit. During the use of the electric heater, once the temperature control circuit fails and the temperature of the electric heater reaches the limited temperature point, the temperature secondary protection device will act and directly cut off the main electric heating circuit, which is simple, easy to implement, and has remarkable effects. It well solves the problem caused by the failure of the temperature control circuit in the electric heater and avoids the abnormal shutdown of the high-speed train unit due to the electric heater problem. More importantly, it eliminates the potential safety hazards caused by the overheating of the electric heater.

[0003] After the high-temperature protection device of the high-speed train heater has been working for a long time, the heat of the high-temperature protection device itself will rise. During the use of the devices in the above applications, there is no structure for the high-temperature protection device to cool itself, which will not only affect the subsequent use of the high-temperature protection device, but also affect the subsequent work of the high-speed train heater, bringing unnecessary trouble to the work of the high-speed train heater. Summary of the Invention

[0004] The object of the present invention is to provide a high-temperature protection device and a cooling method for a motor vehicle heater, so as to solve the problem raised in the above-mentioned background technology that during the use process, there is no structure for the high-temperature protection device to cool itself, which will not only affect the subsequent use of the high-temperature protection device, but also affect the subsequent work of the motor vehicle heater, bringing unnecessary troubles to the work of the motor vehicle heater.

[0005] To achieve the above object, the present invention provides the following technical solution: A high-temperature protection device for a motor vehicle heater, including a water tank, a working pipe is fixedly connected to the left side of the water tank, a tank cover is connected to the upper surface of the water tank, a water pump is fixedly connected to the right side of the water tank, and a hose is fixedly connected to the surface of the working pipe; when the hose works, it is wound and attached to the surface of the motor vehicle heater to cool the motor vehicle heater by water cooling, and the end of the hose is fixedly connected to the right side of the water pump; an inner plate is fixedly connected to the inner wall of the water tank, a connecting shaft is rotatably arranged inside the inner plate, a water wheel is fixedly connected to the end of the connecting shaft, a slider is connected to the inside of the water tank through a reciprocating mechanism, and a water deflecting plate is fixedly connected to the surface of the slider; a stress plate is movably arranged inside the water tank; a movable plate is connected to the inside of the water tank through a lifting mechanism, and a heat sink is connected to the inside of the water tank through a moving mechanism.

[0006] Preferably, the reciprocating mechanism includes a limiting rod fixedly connected to the inner wall of the water tank, the slider is slidably arranged on the surface of the limiting rod, an upper connecting block is fixedly connected to the upper surface of the slider, and the surface of the limiting rod is convex.

[0007] Preferably, a lower connecting block is fixedly connected to the lower surface of the stress plate, a push rod is movably arranged inside the lower connecting block, the other side of the push rod is movably connected to the upper connecting block, and a cam is fixedly connected to the surface of the connecting shaft.

[0008] Preferably, a connecting spring for elastic reset is fixedly connected to the surface of the slider, the other side of the connecting spring is fixedly connected to the inner wall of the water tank, and the surface of the limiting rod is convex.

[0009] Preferably, the sliders are symmetrically distributed on both sides of the water tank, through holes are formed on the surface of the water deflecting plate, and the through holes are equidistantly distributed on the surface of the water deflecting plate.

[0010] Preferably, the lifting mechanism includes an auxiliary rod fixedly connected to the upper surface of the slider, the front view of the auxiliary rod is an inverted "L" structure, a guiding rod is fixedly connected to the lower surface of the inner plate, and the movable plate is sleeved and connected to the surface of the guiding rod.

[0011] Preferably, the left view of the movable plate is an inverted "L" structure, and a stress block is fixedly connected to the inner wall of the movable plate. The stress blocks are evenly distributed on the inner wall of the movable plate, and both the left and right sides of the stress block are inclined.

[0012] Preferably, columns are fixedly connected to the inner wall of the movable plate at equal intervals, and bumps are fixedly connected to the surface of the columns at equal intervals. Both the upper and lower sides of the bumps are inclined.

[0013] Preferably, the moving mechanism includes a pressure-bearing rod fixedly connected to the inner wall of the water tank. A pressure-bearing block is sleeved on the surface of the pressure-bearing rod. Tooth blocks are fixedly connected to the lower surface of the pressure-bearing block at equal intervals. A main gear is fixedly connected to the end of the connecting shaft. A rotating shaft is fixedly connected to the inner wall of the water tank. A sub-gear is fixedly connected to the surface of the rotating shaft. Both the sub-gear and the main gear are semi-gear structures. The heat dissipation fins are fixedly connected to the upper surface of the pressure-bearing block, and the ends of the heat dissipation fins are located outside the tank cover. A guiding groove is formed on the surface of the tank cover.

[0014] A cooling method for a high-temperature protection device of a bullet train heater includes the following steps: S1: During operation, wind the hose around and attach it to the outer surface of the bullet train heater. When cooling, start the water pump. At this time, the water flow inside the water tank circulates in the water tank and the hose, playing a role in water-cooling the bullet train heater. S2: During the process of the water flow circulating, the water flow will impact the water wheel. At this time, the connecting shaft rotates under the action of the water wheel. Then, the slider, the water deflecting plate, and the through hole move horizontally, playing a role in shaking the water flow and quickly discharging the heat inside the water flow. S3: When the slider makes a reciprocating linear motion horizontally, the movable plate will make a reciprocating linear motion vertically under the action of the lifting structure. At this time, the columns and the bumps also play a role in fluctuating the water flow. S4: When the connecting shaft rotates, the pressure-bearing block and the heat dissipation fins move horizontally. At this time, the heat dissipation fins can better dissipate heat from the water tank.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows: By adopting a new structural design and setting a flexible hose, it can be wound and attached to the train heater. Then, through the circulating water flow, the train heater can be cooled. At the same time, the connecting shaft and the cam rotate under the action of the water flow and the water wheel. Then, the force plate will be intermittently pushed by the cam. At this time, the slider drives the water deflector to move under the action of the force plate, the limiting rod and the connecting spring. At this time, the water deflector and the through hole play a role in shaking the water flow, so that the heat inside the water flow is quickly discharged, and then the water flow can better cool the train heater, improving the working efficiency. Moreover, the movable plate will also move in the horizontal direction and also stir the water flow. In addition, heat dissipation fins are provided to discharge the heat inside the water tank. The heat dissipation fins will perform reciprocating linear motion in the horizontal direction and can contact more air, so as to better dissipate heat. The specific content is as follows: When the high-temperature protection device for the train heater works, the flexible hose is wound and attached to the outer surface of the train heater. When cooling, the water pump is started. At this time, the water flow inside the water tank circulates in the water tank and the flexible hose, playing a role in water-cooling the train heater.

[0016] Further, during the circulation of the water flow, the water wheel will be impacted. At this time, the connecting shaft rotates under the action of the water wheel. When the water wheel rotates, it drives the connecting shaft and the cam to rotate. Then, the cam intermittently pushes the force plate. At this time, the force plate drives the slider to perform reciprocating linear motion in the horizontal direction under the action of the thrust force, the limiting rod and the connecting spring. Then, the water deflector and the through hole play a role in shaking the water flow, so that the heat inside the water flow is quickly discharged, and then the water flow can better cool the train heater, improving the working efficiency.

[0017] When the slider of the high-temperature protection device for the train heater performs reciprocating linear motion in the horizontal direction, the slider drives the auxiliary rod to move synchronously. At this time, the auxiliary rod intermittently pushes the force block. Then, the force block and the movable plate perform reciprocating linear motion in the vertical direction under the action of the thrust force, the guide rod and their own gravity. At this time, the movable plate, the column and the convex block also play a role in fluctuating the water flow, accelerating the dissipation of the heat inside the water flow and improving the working efficiency.

[0018] Further, the force blocks are evenly distributed on the lower surface of the movable plate, increasing the working frequency of the movable plate, and then optimizing the effect of shaking the water flow.

[0019] When the water tank of the high-temperature protection device for the train heater works, the heat dissipation fins can quickly discharge the heat inside the water tank.

[0020] Furthermore, during the rotation of the connecting shaft, the connecting shaft drives the main gear to rotate synchronously. When the main gear rotates, it drives the auxiliary gear to rotate. At this time, under the action of the auxiliary gear and the tooth block, the pressure-bearing block moves towards the auxiliary gear. When the main gear and the auxiliary gear are not meshed, the main gear drives the pressure-bearing block to move towards the main gear through the tooth block. By repeating the above process, the pressure-bearing block drives the heat sink to perform a reciprocating linear motion in the horizontal direction. The heat sink can come into contact with more air, and can more quickly discharge the heat inside the water tank, facilitating the cooling of the motor car heater by the water tank and the water flow. During this process, the pressure-bearing rod enables the pressure-bearing block to move only in the horizontal direction, ensuring stability. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 Schematic diagram of the connection structure between the water tank and the tank cover of the present invention; Figure 2 Schematic diagram of the connection structure between the water tank and the water pump of the present invention; Figure 3 Schematic diagram of the connection structure between the water tank and the inner plate of the present invention; Figure 4 Schematic diagram of the connection structure between the inner plate and the connecting shaft of the present invention; Figure 5 Schematic diagram of the connection structure between the connecting shaft and the cam of the present invention; Figure 6 Schematic diagram of the connection structure between the limiting rod and the connecting spring of the present invention; Figure 7 Schematic diagram of the distribution state of the columns of the present invention; Figure 8 Schematic diagram of the connection structure between the water tank and the pressure-bearing rod of the present invention; Figure 9 Schematic diagram of the connection structure between the pressure-bearing block and the tooth block of the present invention; Figure 10 Schematic diagram of the distribution state of the guide grooves of the present invention.

[0022] In the figures: 1. Water tank; 2. Tank cover; 3. Water pump; 4. Working pipe; 5. Hose; 6. Inner plate; 7. Connecting shaft; 8. Water wheel; 9. Force-bearing plate; 10. Cam; 11. Limiting rod; 12. Connecting spring; 13. Slide block; 14. Upper connecting block; 15. Lower connecting block; 16. Push rod; 17. Water deflecting plate; 18. Through hole; 19. Auxiliary rod; 20. Guide rod; 21. Movable plate; 22. Column; 23. Convex block; 24. Force-bearing block; 25. Pressure-bearing rod; 26. Pressure-bearing block; 27. Main gear; 28. Rotating shaft; 29. Auxiliary gear; 30. Heat sink; 31. Tooth block; 32. Guide groove. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0023] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0024] The present invention provides the following technical solution: a high-temperature protection device for a motor car heater.

[0025] Embodiment 1: By providing a water tank 1, a water pump 3 and a hose 5, the temperature of the motor car heater can be reduced. At the same time, a water splashing plate 17 is also provided to reduce the temperature of the water tank 1. As Figures 1 - 6 shown, it includes a water tank 1. A working pipe 4 is fixedly connected to the left side of the water tank 1. A tank cover 2 is connected to the upper surface of the water tank 1. A water pump 3 is fixedly connected to the right side of the water tank 1. And a hose 5 is fixedly connected to the surface of the working pipe 4. When the hose 5 works, it winds and adheres to the surface of the motor car heater to cool the motor car heater by water cooling. And the end of the hose 5 is fixedly connected to the right side of the water pump 3. An inner plate 6 is fixedly connected to the inner wall of the water tank 1. A connecting shaft 7 is rotatably arranged inside the inner plate 6. And a water wheel 8 is fixedly connected to the end of the connecting shaft 7. And a slider 13 is connected to the inside of the water tank 1 through a reciprocating mechanism. At the same time, a water splashing plate 17 is fixedly connected to the surface of the slider 13. A stress plate 9 is movably arranged inside the water tank 1. The reciprocating mechanism includes a limiting rod 11 fixedly connected to the inner wall of the water tank 1. A slider 13 is slidably arranged on the surface of the limiting rod 11. And an upper connecting block 14 is fixedly connected to the upper surface of the slider 13. And the surface of the limiting rod 11 is convex. A lower connecting block 15 is fixedly connected to the lower surface of the stress plate 9. And a push rod 16 is movably arranged inside the lower connecting block 15. And the other side of the push rod 16 is movably connected to the upper connecting block 14. A cam 10 is fixedly connected to the surface of the connecting shaft 7. A connecting spring 12 for elastic reset is fixedly connected to the surface of the slider 13. And the other side of the connecting spring 12 is fixedly connected to the inner wall of the water tank 1. The surface of the limiting rod 11 is convex. The sliders 13 are symmetrically distributed on both sides of the water tank 1. Through holes 18 are formed on the surface of the water splashing plate 17. And the through holes 18 are equidistantly distributed on the surface of the water splashing plate 17.

[0026] During operation, the hose 5 is wound and attached to the outer surface of the EMU heater. When cooling down, the water pump 3 is started. At this time, the water flow inside the water tank 1 circulates in the water tank 1 and the hose 5, playing a role in cooling the EMU heater by water cooling. During the process of the water flow circulating, it will impact the water wheel 8. At this time, under the action of the water wheel 8, the connecting shaft 7 rotates inside the inner plate 6. Furthermore, the cam 10 will intermittently push the force-receiving plate 9. When the force-receiving plate 9 is pushed, the force-receiving plate 9 drives the slider 13 to move in the direction of squeezing the connecting spring 12 through the lower connecting block 15, the push rod 16, and the upper connecting block 14 (the limiting rod 11 enables the slider 13 to move only in the horizontal direction). Repeating the above process, the slider 13 makes a reciprocating linear motion in the horizontal direction. When the slider 13 moves, it drives the water deflecting plate 17 to move synchronously. Furthermore, the water deflecting plate 17 and the through hole 18 play a role in shaking the water flow, enabling the heat inside the water flow to be quickly discharged, and thus enabling the water flow to better cool the EMU heater, improving the working efficiency.

[0027] Embodiment 2: Different from Embodiment 1, by providing the movable plate 21, the column 22, and the convex block 23, it plays a role in shaking the water flow on the side, as Figure 7 shown, the movable plate 21 is connected inside the water tank 1 through a lifting mechanism. The lifting mechanism includes an auxiliary rod 19 fixedly connected to the upper surface of the slider 13, and the front view of the auxiliary rod 19 is an inverted "L" structure. A guiding rod 20 is fixedly connected to the lower surface of the inner plate 6, and the movable plate 21 is sleeved and connected to the surface of the guiding rod 20.

[0028] The left view of the movable plate 21 is an inverted "L" structure, and a force-receiving block 24 is fixedly connected to the inner wall of the movable plate 21, and the force-receiving blocks 24 are equally spaced on the inner wall of the movable plate 21. Moreover, both the left and right sides of the force-receiving block 24 are inclined. Columns 22 are fixedly connected to the inner wall of the movable plate 21 at equal intervals, and convex blocks 23 are fixedly connected to the surface of the columns 22 at equal intervals. Moreover, both the upper and lower sides of the convex block 23 are inclined.

[0029] When the slider 13 makes a reciprocating linear motion in the horizontal direction, the slider 13 will drive the auxiliary rod 19 to move synchronously. At this time, the auxiliary rod 19 will intermittently push the force-receiving block 24. When the force-receiving block 24 is pushed, the movable plate 21 rises (the guiding rod 20 enables the movable plate 21 to move only in the vertical direction). When the auxiliary rod 19 continues to move until it does not contact the force-receiving block 24, the movable plate 21 descends. Furthermore, the force-receiving block 24 and the movable plate 21 will make a reciprocating linear motion in the vertical direction under the action of the thrust force, the guiding rod 20, and its own gravity. At this time, the movable plate 21, the column 22, and the convex block 23 also play a role in fluctuating the water flow, accelerating the dissipation of the heat inside the water flow, improving the working efficiency. At the same time, the force-receiving blocks 24 are equally spaced on the lower surface of the movable plate 21, increasing the working frequency of the movable plate 21, and thus optimizing the effect of shaking the water flow.

[0030] Embodiment 3: Different from Embodiment 2, by providing a heat sink 30 that can reciprocate, the heat inside the water tank 1 can be better discharged. As Figures 8 - 10 shown, the inside of the water tank 1 is connected with a heat sink 30 through a moving mechanism. The moving mechanism includes a pressure-bearing rod 25 fixedly connected to the inner wall of the water tank 1. A pressure-bearing block 26 is sleeved and connected to the surface of the pressure-bearing rod 25. Tooth blocks 31 are fixedly connected to the lower surface of the pressure-bearing block 26 at equal intervals. The end of the connecting shaft 7 is fixedly connected with a main gear 27. A rotating shaft 28 is fixedly connected to the inner wall of the water tank 1. A sub-gear 29 is fixedly connected to the surface of the rotating shaft 28. Both the sub-gear 29 and the main gear 27 are semi-gear structures. A heat sink 30 is fixedly connected to the upper surface of the pressure-bearing block 26. The end of the heat sink 30 is located outside the tank cover 2. And a guiding groove 32 is formed on the surface of the tank cover 2.

[0031] When the water tank 1 is working, the heat sink 30 can quickly discharge the heat inside the water tank 1. During the rotation of the connecting shaft 7, the connecting shaft 7 will drive the main gear 27 to rotate synchronously. When the main gear 27 rotates, it will drive the sub-gear 29 and the rotating shaft 28 to rotate. At this time, under the action of the sub-gear 29 and the tooth blocks 31, the pressure-bearing block 26 moves towards the sub-gear 29. When the main gear 27 and the sub-gear 29 are not meshed, the main gear 27 drives the pressure-bearing block 26 to move towards the main gear 27 through the tooth blocks 31. Repeating the above process, the pressure-bearing block 26 drives the heat sink 30 to perform a reciprocating linear motion in the horizontal direction. The heat sink 30 can contact more air, and can discharge the heat inside the water tank 1 more quickly, facilitating the water tank 1 and the water flow to cool and dissipate heat for the motor car heater. During this process, the pressure-bearing rod 25 enables the pressure-bearing block 26 to move only in the horizontal direction, ensuring stability.

[0032] The above is the working process of the entire device, and the content not described in detail in this specification belongs to the prior art well-known to those skilled in the art.

[0033] Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A high-temperature protection device for a motor car heater, comprising a water tank (1), a working pipe (4) is connected to the left side of the water tank (1), a tank cover (2) is connected to the upper surface of the water tank (1), a water pump (3) is connected to the right side of the water tank (1), and a hose (5) is connected to the surface of the working pipe (4); When the hose (5) works, it winds and fits on the surface of the motor car heater to cool the motor car heater by water cooling, and the end of the hose (5) is fixedly connected to the right side of the water pump (3); It is characterized in that: An inner plate (6) is fixedly connected to the inner wall of the water tank (1), a connecting shaft (7) is rotatably arranged inside the inner plate (6), a water wheel (8) is fixedly connected to the end of the connecting shaft (7), and the inside of the water tank (1) is connected to a slider (13) through a reciprocating mechanism. At the same time, a water deflecting plate (17) is connected to the surface of the slider (13); A stress plate (9) is movably arranged inside the water tank (1); An active plate (21) is connected to the inside of the water tank (1) through a lifting mechanism, and a heat sink (30) is connected to the inside of the water tank (1) through a moving mechanism.

2. The high-temperature protection device for a motor car heater according to claim 1, characterized in that: The reciprocating mechanism includes a limiting rod (11) fixedly connected to the inner wall of the water tank (1), the slider (13) is slidably arranged on the surface of the limiting rod (11), an upper connecting block (14) is fixedly connected to the upper surface of the slider (13), and the surface of the limiting rod (11) is convex.

3. A high-temperature protection device for a bullet train heater according to claim 2, characterized in that: A lower connecting block (15) is fixedly connected to the lower surface of the stress plate (9), a push rod (16) is movably arranged inside the lower connecting block (15), and the other side of the push rod (16) is movably connected to the upper connecting block (14). A cam (10) is fixedly connected to the surface of the connecting shaft (7).

4. A high-temperature protection device for a high-speed train heater according to claim 2, characterized in that: A connecting spring (12) for elastic reset is fixedly connected to the surface of the slider (13), and the other side of the connecting spring (12) is fixedly connected to the inner wall of the water tank (1). The surface of the limiting rod (11) is convex.

5. The high-temperature protection device for a bullet train heater according to claim 1, characterized in that: The sliders (13) are symmetrically distributed on both sides of the water tank (1). Through holes (18) are formed in the surface of the water deflecting plate (17), and the through holes (18) are equally spaced on the surface of the water deflecting plate (17).

6. The high-temperature protection device for a bullet train heater according to claim 1, characterized in that: The lifting mechanism includes an auxiliary rod (19) fixedly connected to the upper surface of the slider (13). The front view of the auxiliary rod (19) is an inverted "L" structure. A guide rod (20) is fixedly connected to the lower surface of the inner plate (6), and the active plate (21) is sleeved and connected to the surface of the guide rod (20).

7. The high-temperature protection device for a bullet train heater according to claim 1, wherein: The left view of the active plate (21) is an inverted "L" structure. Stress blocks (24) are fixedly connected to the inner wall of the active plate (21), and the stress blocks (24) are equally spaced on the inner wall of the active plate (21). The left and right sides of the stress blocks (24) are both inclined.

8. The high-temperature protection device for a bullet train heater according to claim 1, characterized in that: Columns (22) are fixedly connected to the inner wall of the active plate (21) at equal intervals. Convex blocks (23) are fixedly connected to the surface of the columns (22) at equal intervals. The upper and lower sides of the convex blocks (23) are both inclined.

9. The high-temperature protection device for a motor vehicle heater according to claim 1, characterized in that: The moving mechanism includes a pressure-bearing rod (25) fixedly connected to the inner wall of the water tank (1), and a pressure-bearing block (26) is sleeved and connected to the surface of the pressure-bearing rod (25). Tooth blocks (31) are fixedly connected to the lower surface of the pressure-bearing block (26) at equal intervals. A main gear (27) is fixedly connected to the end of the connecting shaft (7). A rotating shaft (28) is fixedly connected to the inner wall of the water tank (1). A secondary gear (29) is fixedly connected to the surface of the rotating shaft (28). Both the secondary gear (29) and the main gear (27) are semi-gear structures. The heat dissipation fins (30) are fixedly connected to the upper surface of the pressure-bearing block (26), and the ends of the heat dissipation fins (30) are located outside the tank cover (2). A guiding groove (32) is formed in the surface of the tank cover (2).

10. A cooling method for a high-temperature protection device of a motor car heater, characterized in that: It includes the following steps: S1: During operation, the hose (5) is wound and attached to the outer surface of the train heater. When cooling down, the water pump (3) is started. At this time, the water flow inside the water tank (1) circulates in the water tank (1) and the hose (5), playing a role in water-cooling and cooling the train heater; S2: During the process of the water flow circulating, the water flow impacts the water wheel (8). At this time, the connecting shaft (7) rotates under the action of the water wheel (8). Furthermore, the slider (13), the water deflecting plate (17) and the through hole (18) move in the horizontal direction, playing a role in shaking the water flow and quickly discharging the heat inside the water flow; S3: When the slider (13) makes a reciprocating linear motion in the horizontal direction, the movable plate (21) will make a reciprocating linear motion in the vertical direction under the action of the lifting structure. At this time, the column (22) and the convex block (23) also play a role in fluctuating the water flow; S4: When the connecting shaft (7) rotates, the pressure-bearing block (26) and the heat dissipation fins (30) move in the horizontal direction. At this time, the heat dissipation fins (30) can better dissipate heat from the water tank (1).

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