Power battery double-acting temperature control system and equipment for new energy rail locomotive

Abstract

The invention relates to the technical field of battery temperature control, and discloses a power battery double-acting temperature control system and equipment for a new energy rail locomotive, the equipment comprises a power battery pack, a cold plate is arranged outside the power battery pack, one side of the cold plate is connected with a gas pipeline, and one end, far away from the cold plate, of the gas pipeline is connected with a compressor. A compression refrigeration system and a separation type heat pipe cooling system are organically combined together, so that energy conservation and heat dissipation performance are guaranteed, the system structure design of double-acting work is protected, the condenser structure shared by the double systems is protected, the evaporator structure shared by the double systems is protected, and the switching control logic of the double systems is protected; through the combination of the two systems, the whole weight and size are small, automatic deep cleaning of fins and heat-conducting fins of the air-cooled condenser can be achieved, manual time-consuming and labor-consuming disassembly for cleaning is not needed, time and labor are saved, and normal use of the air-cooled condenser is guaranteed.

Description

Technical Field

[0001] The present invention belongs to the technical field of battery temperature control, and in particular relates to a dual-action temperature control system and equipment for a power battery used in a new energy rail locomotive. Background Art

[0002] The power battery packs for new energy rail transit locomotives generate a lot of heat during operation. At present, the power battery packs for rail transit locomotives still follow the cooling method of conventional energy storage systems, using ethylene glycol aqueous solution as the refrigerant. The refrigerant is first used to absorb the heat emitted during the operation of the power battery. After the refrigerant absorbs the heat, the temperature rises, and then it is transported to the outside of the vehicle body and the refrigeration system is used to cool the refrigerant. In this way, the temperature control system requires more than two circulation systems, including a refrigeration circulation system, which absorbs the heat of the refrigerant and then uses the refrigerant circulation to release the heat to the air. The second cycle is the refrigerant cycle, which is used to absorb the heat of the power battery and then release the heat to the refrigerant of the refrigeration system. The principle is shown in the attached manual. Figure 9 .

[0003] Because two circulation systems are required, the device is extremely heavy and bulky. Furthermore, when operating in cold regions, the coolant in the cooling system must be replaced with a more low-temperature-resistant formulation. Otherwise, the coolant will freeze, causing pipes and systems to rupture and damage. Using a coolant with a low freezing point significantly reduces its specific heat capacity, requiring a higher flow rate to transport the same amount of heat. This significantly increases the weight, volume, and energy consumption of the system. Furthermore, the fins on the condenser or heat exchanger in existing systems require regular, labor-intensive manual cleaning, which is time-consuming and inconvenient.

[0004] Therefore, it is necessary to invent a dual-action temperature control system and equipment for a power battery of a new energy rail locomotive to solve the above problems. Summary of the Invention

[0005] In response to the above problems, the present invention provides a dual-action temperature control system and equipment for a power battery for a new energy rail locomotive to solve the problems raised in the above background technology.

[0006] To achieve the above object, the present invention provides the following technical solutions: A double-acting temperature control device for a power battery for a new energy rail locomotive includes a power battery pack, a cold plate is provided on the outside of the power battery pack, a gas pipeline is connected to one side of the cold plate, an end of the gas pipeline away from the cold plate is connected to a compressor, and an air-cooled condenser is connected to one side of the compressor, a bypass pipe 1 is provided on the outside of the gas pipeline, an end of the bypass pipe 1 away from the gas pipeline is connected to the air-cooled condenser, a liquid pipeline is connected to the outside of the air-cooled condenser, an end of the liquid pipeline away from the air-cooled condenser is connected to the cold plate, an expansion valve is provided on the outside of the liquid pipeline, a bypass pipe 2 is connected to the outside of the liquid pipeline, an end of the bypass pipe 2 away from the liquid pipeline is connected to a side of the liquid pipeline close to the cold plate, and solenoid valves are provided on the outside of the bypass pipe 2 and the outside of the bypass pipe 1.

[0007] Furthermore, a PTC heater is provided outside the bypass pipe 2.

[0008] Furthermore, the air-cooled condenser includes a frame, a copper tube is provided inside the frame, and a plurality of pairs of fins are equidistantly provided inside the frame, the fins are symmetrically arranged on the outside of the copper tube, the fins are provided with sockets matching the copper tubes, a heat conducting plate is provided in the socket, the heat conducting plate is located between adjacent copper tubes, the heat conducting plate and the fins are in contact with the copper tubes, a limiting assembly for limiting the position of the heat conducting plate is provided on the outside of the heat conducting plate, and a cleaning assembly for cleaning the heat conducting plate is provided on the outside of the fin, a slide groove corresponding to the fin is provided on the top wall of the frame, a slider is slidably installed in the slide groove, a cavity is provided inside the slider, a rectangular plate is slidably installed in the cavity, a first spring is fixedly installed on the top of the rectangular plate, a connecting rod is fixedly installed on the bottom of the rectangular plate, the bottom end of the connecting rod extends outside the cavity and is fixedly connected to the corresponding fin, a driving assembly for driving it to move along the slide groove is provided on the outside of the slider, a collection assembly for collecting dust is provided on the outside of the frame, and a lifting assembly for lifting the fins is provided on the outside of the frame.

[0009] Furthermore, the driving assembly includes a pull rope fixedly connected to the side of the slider away from the center of the frame, a second spring is provided on the outside of the pull rope and located in the slide groove, the two ends of the second spring are respectively fixedly connected to the slider and the inner wall of the slide groove, a winding rod that cooperates with the pull rope is rotatably installed on the outside of the frame, the end of the pull rope away from the slider extends to the outside of the slide groove and is fixedly connected to the winding rod, a motor corresponding to the winding rod is fixedly connected to the outside of the frame, and the output shaft of the motor is transmission-connected to the end of the winding rod.

[0010] Furthermore, the lifting assembly includes a lifting plate symmetrically arranged at the lower outer side of the frame, and a vertical groove corresponding to the end of the lifting plate is opened at the lower outer side of the frame. The two ends of the lifting plate are slidably arranged in the corresponding vertical grooves, and the top wall of the vertical groove is fixedly installed with an electromagnet. The material of the two ends of the lifting plate is iron.

[0011] Furthermore, the limiting assembly includes a limiting strip symmetrically fixedly installed outside the heat conducting plate, and a limiting plate cooperating with the limiting strip is fixedly installed outside the fin. The limiting plate can move downward along the limiting strip, and the cross-section of the limiting plate is a "7" shape. The two sides of the limiting strip are respectively fitted with the inner side of the fin and the limiting plate.

[0012] Furthermore, the cleaning assembly includes a thin tube fixedly installed at the bottom of the limit plate, the bottom of the thin tube is provided with a suction port facing the heat conduction plate, the multiple thin tubes on the same side are connected by a hard tube, the bottom of the hard tube is connected to a hose connected to it, the bottom ends of the multiple hoses on the same side are commonly connected to a cross tube, a vacuum cleaner is fixedly installed on the lower part of one side of the frame, and the suction end of the vacuum cleaner is fixedly connected to one end of the cross tube.

[0013] Furthermore, the collection assembly includes a collection pipe symmetrically fixedly connected to the lower part of the frame. The outside of the vacuum cleaner is connected to the collection pipe through a suction pipe. A collection port is provided at the top of the collection pipe. Electric control valves are provided in the suction pipe and the cross pipe.

[0014] The present invention also provides a dual-action temperature control system for a power battery for a new energy rail locomotive, comprising the dual-action temperature control device for a power battery for a new energy rail locomotive as described above.

[0015] Technical effects and advantages of the present invention: 1. The present invention organically combines a compression refrigeration system with a separate heat pipe cooling system to achieve energy saving and heat dissipation performance, protect its dual-action system structure design, protect its dual-system shared air-cooled condenser structure, protect its dual-system shared evaporator structure, protect its dual-system switching control logic, and through the combination of the two systems, reduce the overall weight and volume; 2. The present invention can realize automatic deep cleaning of the fins and heat conducting sheets of the air-cooled condenser, eliminating the need for time-consuming and labor-intensive manual disassembly for cleaning, thereby saving time and labor and ensuring the normal use of the air-cooled condenser. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 A schematic structural diagram of a dual-action temperature control system for a power battery used in a new energy rail locomotive according to an embodiment of the present invention is shown; Figure 2 A schematic diagram showing the internal structure of a condenser according to an embodiment of the present invention is shown; Figure 3The cross-sectional structure diagram of the condenser of the embodiment of the present invention is shown. Figure 1 ; Figure 4 The embodiment of the present invention is shown Figure 3 A in the middle is an enlarged structural diagram; Figure 5 The cross-sectional structure diagram of the condenser of the embodiment of the present invention is shown. Figure 2 ; Figure 6 The embodiment of the present invention is shown Figure 5 The enlarged structural diagram at B in the middle; Figure 7 The embodiment of the present invention is shown Figure 2 The enlarged structural diagram at C in the middle; Figure 8 A schematic structural diagram of a condenser according to an embodiment of the present invention is shown; Figure 9 A diagram of a battery pack temperature control system in the prior art is shown; In the figure: 1. Power battery pack; 2. Cold plate; 3. Gas pipeline; 4. Compressor; 5. Air-cooled condenser; 6. Liquid pipeline; 7. Expansion valve; 8. Bypass pipe 2; 9. Solenoid valve; 10. Bypass pipe 1; 11. PTC heater; 12. Rack; 13. Copper tube; 14. Fin; 15. Heat conducting plate; 16. Slider; 17. Connecting rod; 18. Rectangular plate; 19. First spring; 20. Second spring; 21. Winding rod; 22. Pull rope; 23. Lifting plate; 24. Electromagnet; 25. Limiting strip; 26. Limiting plate; 27. Thin tube; 28. Hard tube; 29. ​​Hose; 30. Horizontal tube; 31. Vacuum cleaner; 32. Suction tube; 33. Collection tube; 34. Motor. DETAILED DESCRIPTION

[0017] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below in conjunction with the embodiments.

[0018] The present invention provides a dual-action temperature control device for power batteries used in new energy rail locomotives. Figure 1As shown, it includes a power battery pack 1, a cold plate 2 is provided on the outside of the power battery pack 1, a gas pipeline 3 is connected to one side of the cold plate 2, the end of the gas pipeline 3 away from the cold plate 2 is connected to the compressor 4, and one side of the compressor 4 is connected to the air-cooled condenser 5, a bypass pipe 10 is provided on the outside of the gas pipeline 3, the end of the bypass pipeline 10 away from the gas pipeline 3 is connected to the air-cooled condenser 5, the outside of the air-cooled condenser 5 is connected to a liquid pipeline 6, the end of the liquid pipeline 6 away from the air-cooled condenser 5 is connected to the cold plate 2, an expansion valve 7 is provided on the outside of the liquid pipeline 6, the outside of the liquid pipeline 6 is connected to a bypass pipeline 2 8, the end of the bypass pipeline 2 8 away from the liquid pipeline 6 is connected to the side of the liquid pipeline 6 close to the cold plate 2, and the outside of the bypass pipeline 2 8 and the outside of the bypass pipeline 10 are both provided with solenoid valves 9.

[0019] When the air temperature exceeds +5°C, the system closes the solenoid valve 9 on the bypass pipe 10 of the compressor 4 and the solenoid valve 9 on the bypass pipe 2 8 of the expansion valve 7. The system operates in compression refrigeration mode. The compression refrigeration mode is a direct cooling cooling system with the cold plate 2 as the evaporator. The compressor 4 presses the refrigerant gas into the air-cooled condenser 5. In the air-cooled condenser 5, the high-temperature and high-pressure refrigerant is cooled by the air outside the air-cooled condenser 5 and condensed into liquid at the same time. The liquid refrigerant is decompressed and sprayed into atomization through the expansion valve 7, and vaporizes and absorbs heat in the cold plate 2 to cool the power battery pack 1. The system controls the cooling temperature of the power battery pack 1 by controlling the pressure in the evaporator, i.e., the cold plate 2.

[0020] When the vehicle is running in cold winter or in northern areas and the air temperature drops below 5°C, the system shuts down the compressor 4, opens the solenoid valve 9 on the bypass pipe 10 of the compressor 4, and opens the solenoid valve 9 on the bypass pipe 2 8 of the expansion valve 7, and operates in a heat pipe heat exchange mode. The system works as follows: After solenoid valve 9 opens, all liquid refrigerant flows into cold plate 2, draining air-cooled condenser 5. Because air-cooled condenser 5 is exposed to low-temperature air, the gas inside continuously absorbs heat, condensing into cold liquid that flows back into the cabin's evaporator, cold plate 2. Inside cold plate 2, the liquid continuously absorbs heat generated by the operation of power battery pack 1. After absorbing heat, the refrigerant evaporates into gas, which is then transported through gas line 3 to air-cooled condenser 5 on the roof. This cycle repeats itself, continuously cooling the cabin air.

[0021] The present invention organically combines the working principle of a compression refrigeration direct cooling system with the working principle of a separate heat pipe cooling system to achieve energy saving and heat dissipation performance.

[0022] Protect its double-acting system structure design, protect its dual-system shared condenser structure, protect its dual-system shared evaporator structure, and protect its dual-system switching control logic.

[0023] like Figure 1 As shown, a PTC heater 11 is provided outside the bypass pipe 2 8 .

[0024] When the outside temperature is too low, the power battery pack 1 needs to be heated. The power battery pack 1 can be heated by the refrigeration system, or the liquid in the cold plate 2 can be heated by the PTC heater 11 arranged at the bottom. Then, the refrigerant will automatically transfer the heat to each cold plate 2 according to the temperature equalization principle.

[0025] like Figures 2 to 8 As shown, the air-cooled condenser 5 includes a frame 12, a copper tube 13 is provided inside the frame 12, and a plurality of pairs of fins 14 are equidistantly provided inside the frame 12. The fins 14 are symmetrically arranged on the outside of the copper tube 13, and a socket matching the copper tube 13 is provided on the fin 14. A heat conducting sheet 15 is provided in the socket. The material of the fin 14 and the heat conducting sheet 15 is the same as that of the fin on the condenser in the prior art. The heat conducting sheet 15 is located between adjacent copper tubes 13. The heat conducting sheet 15 and the fin 14 are in contact with the copper tube 13. The outside of the heat conducting sheet 15 is provided with a limit assembly for limiting its position. The outside of the fin 14 is provided with a heat conducting sheet 15 for cleaning. 5, the top wall of the frame 12 is provided with a slide groove corresponding to the fin 14, a slider 16 is slidably installed in the slide groove, a cavity is provided inside the slider 16, a rectangular plate 18 is slidably installed in the cavity, a first spring 19 is fixedly installed on the top of the rectangular plate 18, a connecting rod 17 is fixedly installed on the bottom of the rectangular plate 18, the bottom end of the connecting rod 17 extends outside the cavity and is fixedly connected to the corresponding fin 14, a driving component for driving it to move along the slide groove is provided on the outside of the frame 12, a collecting component for collecting dust is provided on the outside of the frame 12, and a lifting component for lifting the fin 14 is provided on the outside of the frame 12.

[0026] When the fins 14 and the heat conducting sheet 15 need to be cleaned, the heat conducting sheet 15 is cleaned by the cleaning assembly so that the dust on its surface leaves the heat conducting sheet 15, and then the slider 16 is driven by the driving assembly to move the slider 16 with the rectangular plate 18, the connecting rod 17 and the fin 14, so that the two opposite fins 14 are separated. As the fins 14 move, when the fins 14 are separated from the bottom wall of the frame 12, the fins 14 are separated from the copper tube 13. At this time, the compressed first spring 19 releases the force to carry the rectangular plate 18, the connecting rod 17 and the fin 14 downward, so that the rectangular plate 18 hits the inner wall of the cavity to generate vibration, and the vibration is transmitted to the fin 14 to make it vibrate, and then the fin 14 is lifted. The lifting component drives the fin 14 to rise with the connecting rod 17 and the rectangular plate 18 to compress the first spring 19 to deform it and generate a force. Then the lifting component cancels the lifting of the fin 14. Based on the same principle, the fin 14 drops again. By continuously lifting and canceling the lifting of the fin 14 by the lifting component, the fin 14 can be continuously vibrated, so that the dust on its surface can be shaken off. At the same time, the shaken dust can be collected by the collecting component. After cleaning is completed, the lifting component lifts the fin 14, and then the driving component drives the fin 14 to reset, finally completing the automatic deep cleaning of the heat conducting plate 15 and the fin 14. There is no need for manual disassembly for cleaning, which is time-consuming and labor-intensive, thus saving time and effort.

[0027] like Figures 3 and 4 As shown, the drive assembly includes a pull rope 22 fixedly connected to the side of the slider 16 away from the center of the frame 12, and a second spring 20 is provided on the outside of the pull rope 22 and located in the slide groove. The two ends of the second spring 20 are respectively fixedly connected to the slider 16 and the inner wall of the slide groove. A winding rod 21 that cooperates with the pull rope 22 is rotatably installed on the outside of the frame 12. The end of the pull rope 22 away from the slider 16 extends to the outside of the slide groove and is fixedly connected to the winding rod 21. The outside of the frame 12 is fixedly connected to a motor 34 corresponding to the winding rod 21, and the output shaft of the motor 34 is transmission-connected to the end of the winding rod 21.

[0028] Starting the motor 34 causes its output shaft to rotate forward with the winding rod 21, so that the pull rope 22 is wound. As the pull rope 22 is wound, the slider 16 is pulled to move with the rectangular plate 18, the connecting rod 17, and the fin 14, so that the two opposite fins 14 are separated. As the slider 16 moves, the second spring 20 is compressed to deform and generate a force. Starting the motor 34 causes its output shaft to reverse, so that the pull rope 22 is released. The compressed second spring 20 releases the force and resets the slider 16, so that the fin 14 is reset.

[0029] like Figure 3 As shown, the lifting assembly includes a lifting plate 23 symmetrically arranged at the lower outer side of the frame 12. A vertical groove corresponding to the end of the lifting plate 23 is opened at the lower outer side of the frame 12. The two ends of the lifting plate 23 are slidably arranged in the corresponding vertical grooves. The top wall of the vertical groove is fixedly installed with an electromagnet 24. The material of the two ends of the lifting plate 23 is iron.

[0030] The electromagnet 24 is energized to make it magnetic, so that it attracts the lifting plate 23 to make it rise. The lifting plate 23 rises and presses against the bottom of the fin 14 to push the fin 14 up. The electromagnet 24 is deenergized to make it lose its magnetism, and the adsorption of the lifting plate 23 is cancelled.

[0031] like Figures 5 and 6 As shown, the limiting assembly includes a limiting strip 25 symmetrically fixedly installed outside the heat conducting plate 15, and a limiting plate 26 cooperating with the limiting strip 25 is fixedly installed outside the fin 14. The limiting plate 26 can move downward along the limiting strip 25. The cross-section of the limiting plate 26 is a "7" shape, and the two sides of the limiting strip 25 are respectively fitted with the inner sides of the fin 14 and the limiting plate 26.

[0032] The heat conducting plate 15 cannot move due to the restriction of the limiting strip 25 and the limiting plate 26, and is always kept between two adjacent copper tubes 13. The material of the limiting plate 26 and the limiting strip 25 is the same as that of the fins on the condenser in the prior art.

[0033] like Figure 2 、 Figure 5 and Figure 6 As shown, the cleaning assembly includes a thin tube 27 fixedly installed at the bottom of the limit plate 26, and a suction port facing the heat conducting plate 15 is provided at the bottom of the thin tube 27. The multiple thin tubes 27 on the same side are connected by a hard tube 28, and the bottom of the hard tube 28 is connected to a hose 29 connected thereto. The bottom ends of the multiple hoses 29 on the same side are commonly connected to a cross pipe 30. A vacuum cleaner 31 is fixedly installed on the lower part of one side of the frame 12, and the suction end of the vacuum cleaner 31 is fixedly connected to one end of the cross pipe 30.

[0034] The vacuum cleaner 31 is started to cooperate with the horizontal pipe 30 , the hose 29 , the hard pipe 28 , the thin tube 27 and the suction port to suck air, so that the dust on the surface of the heat conducting plate 15 is sucked away, so that the heat conducting plate 15 is cleaned.

[0035] like Figure 2 As shown, the collection assembly includes a collection pipe 33 symmetrically fixedly connected to the lower part of the frame 12. The outside of the vacuum cleaner 31 is connected to the collection pipe 33 through the suction pipe 32. The top of the collection pipe 33 is provided with a collection port. The suction pipe 32 and the cross pipe 30 are both provided with an electric control valve, which is not shown in the figure.

[0036] When cleaning the heat conducting sheet 15, the electrically controlled valve in the extraction pipe 32 is closed, the electrically controlled valve in the transverse pipe 30 is opened, and the vacuum cleaner 31 is started to extract air. The transverse pipe 30, the hose 29, the hard pipe 28, the thin tube 27 and the suction port are used to suck air to remove dust on the surface of the heat conducting sheet 15 and clean the heat conducting sheet 15. After cleaning the heat conducting sheet 15, the electrically controlled valve in the extraction pipe 32 is opened, and the electrically controlled valve in the transverse pipe 30 is closed. At this time, the vacuum cleaner 31 collects the fallen dust through the extraction pipe 32, the collection pipe 33 and the collection port to prevent dust from escaping.

[0037] The present invention also provides a dual-action temperature control device for a power battery for a new energy rail locomotive, including the dual-action temperature control system for a power battery for a new energy rail locomotive as described above.

[0038] Working principle: When the air temperature exceeds +5°C, the system closes the solenoid valve 9 on the bypass pipe 10 of the compressor 4 and the solenoid valve 9 on the bypass pipe 2 8 of the expansion valve 7. The system operates in compression refrigeration mode. The compression refrigeration mode is a direct cooling system with the cold plate 2 as the evaporator. The compressor 4 presses the refrigerant gas into the air-cooled condenser 5. In the air-cooled condenser 5, the high-temperature and high-pressure refrigerant is cooled by the air outside the air-cooled condenser 5 and condensed into liquid at the same time. The liquid refrigerant is decompressed and sprayed into atomization through the liquid pipeline 6 and the expansion valve 7, and vaporizes and absorbs heat in the cold plate 2 to cool the power battery pack 1. The system controls the cooling temperature of the power battery pack 1 by controlling the pressure in the evaporator, that is, the cold plate 2.

[0039] When the vehicle is running in cold winter or in northern areas and the air temperature drops below 5°C, the system shuts down the compressor 4, opens the solenoid valve 9 on the bypass pipe 10 of the compressor 4, and opens the solenoid valve 9 on the bypass pipe 2 8 of the expansion valve 7, and operates in a heat pipe heat exchange mode. The system works as follows: After the solenoid valve 9 is opened, all the liquid refrigerant flows into the cold plate 2 and the air-cooled condenser 5 is emptied. Because the air-cooled condenser 5 is in low-temperature air, the gas inside it continuously absorbs heat and condenses into cold liquid, which flows back to the evaporator in the cabin, that is, the cold plate 2. The liquid in the cold plate 2 continuously absorbs the heat generated during the operation of the power battery pack 1. After absorbing heat, the refrigerant liquid evaporates into gas and is transported to the air-cooled condenser 5 on the roof through the gas pipeline 3... This cycle repeats continuously, continuously cooling the cabin air.

[0040] The present invention organically combines the working principle of a compression refrigeration direct cooling system with the working principle of a separate heat pipe cooling system to achieve energy saving and heat dissipation performance.

[0041] Protect the system structure design of its double-acting work, protect the condenser structure shared by the two systems, protect the evaporator structure shared by the two systems, and protect the switching control logic of the two systems; When the outside temperature is too low, the power battery pack 1 needs to be heated. The power battery pack 1 can be heated by the refrigeration system, or the liquid in the cold plate 2 can be heated by the PTC heater 11 arranged at the bottom. Then, the refrigerant will automatically transfer the heat to each cold plate 2 according to the temperature equalization principle.

[0042] When it is necessary to clean the fins 14 and the heat conducting sheet 15 on the air-cooled condenser 5, the electric control valve in the extraction pipe 32 is closed, the electric control valve in the cross pipe 30 is opened, and the vacuum cleaner 31 is started to extract air, and the cross pipe 30, the hose 29, the hard pipe 28, the thin tube 27 and the suction port are used to suck air, and the dust on the surface of the heat conducting sheet 15 is sucked away, and the heat conducting sheet 15 is cleaned. After cleaning the heat conducting sheet 15, the electric control valve in the extraction pipe 32 is opened, and the electric control valve in the cross pipe 30 is closed. At this time, the vacuum cleaner 31 continues to work, and the extraction pipe 32, the collection pipe 33 and the collection port are used to suck air, and the vacuum cleaner 31 is started. The motor 34 causes its output shaft to rotate forward with the winding rod 21, so that the pull rope 22 is wound. As the pull rope 22 is wound, the slider 16 is pulled to move with the rectangular plate 18, the connecting rod 17, and the fin 14, so that the two opposite fins 14 are separated. As the slider 16 moves, the second spring 20 is compressed to deform and generate a force. As the fin 14 moves, when the fin 14 is separated from the bottom wall of the frame 12, the fin 14 is separated from the copper tube 13. At this time, the compressed first spring 19 releases the force and brings the rectangular plate 18, the connecting rod 17, and the fin 14 down, so that the two opposite fins 14 are separated. The rectangular plate 18 hits the inner wall of the cavity to generate vibration, and the vibration is transmitted to the fin 14 to make it vibrate. The electromagnet 24 is energized to make it magnetic, so that the lifting plate 23 is attracted to make it rise. The lifting plate 23 rises and presses against the bottom of the fin 14 to push the fin 14 up. The fin 14 rises with the connecting rod 17 and the rectangular plate 18 to compress the first spring 19 to deform it and generate a force. Then the electromagnet 24 is deenergized to make it lose its magnetism, canceling the adsorption of the lifting plate 23. The fin 14 drops again according to the same principle. By energizing and deenergizing the electromagnet 24, the fin 14 can be continuously vibrated. The dust on its surface must be shaken off, and at the same time, the dust is sucked into the vacuum cleaner 31 through the suction pipe 32, the collection pipe 33, and the collection port to collect the dust and prevent the dust from escaping. After the cleaning is completed, the electromagnet 24 is energized to make the fin 14 rise, and the motor 34 is started to reverse its output shaft, so that the pull rope 22 is released, and the compressed second spring 20 releases the force to restore the slider 16, so that the fin 14 is restored. At this point, the automatic deep cleaning of the fin 14 and the heat conducting sheet 15 is completed, and there is no need for manual disassembly for cleaning, which is time-consuming and labor-intensive, thus saving time and effort.

[0043] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same.

Claims

1. A dual-action temperature control device for a power battery for a new energy rail locomotive, comprising a power battery pack (1), characterized in that: The power battery pack (1) is provided with a cold plate (2) on the outside, a gas pipeline (3) is connected to one side of the cold plate (2), a compressor (4) is connected to one end of the gas pipeline (3) away from the cold plate (2), an air-cooled condenser (5) is connected to one side of the compressor (4), a bypass pipeline (10) is provided on the outside of the gas pipeline (3), an end of the bypass pipeline (10) away from the gas pipeline (3) is connected to the air-cooled condenser (5), and the outside of the air-cooled condenser (5) is provided with a bypass pipeline (10) A liquid pipeline (6) is connected, and one end of the liquid pipeline (6) away from the air-cooled condenser (5) is connected to the cold plate (2). An expansion valve (7) is provided on the outside of the liquid pipeline (6). The outside of the liquid pipeline (6) is connected to a bypass pipeline 2 (8). One end of the bypass pipeline 2 (8) away from the liquid pipeline (6) is connected to a side of the liquid pipeline (6) close to the cold plate (2). Solenoid valves (9) are provided on the outside of the bypass pipeline 2 (8) and the outside of the bypass pipeline 1 (10).

2. The dual-action temperature control device for power batteries for new energy rail locomotives according to claim 1 is characterized in that: A PTC heater (11) is provided outside the bypass pipe 2 (8).

3. The dual-action temperature control device for power batteries for new energy rail locomotives according to claim 2 is characterized in that: The air-cooled condenser (5) comprises a frame (12), a copper tube (13) is arranged inside the frame (12), a plurality of pairs of fins (14) are arranged at equal intervals inside the frame (12), the fins (14) are symmetrically arranged outside the copper tube (13), the fins (14) are provided with sockets matching the copper tube (13), a heat conducting sheet (15) is arranged inside the sockets, the heat conducting sheet (15) is located between adjacent copper tubes (13), the heat conducting sheet (15) and the fins (14) are both in contact with the copper tube (13), a limiting component for limiting the position of the heat conducting sheet (15) is arranged outside the heat conducting sheet (15), a cleaning component for cleaning the heat conducting sheet (15) is arranged outside the fins (14), and the frame (12) is provided with a plurality of pairs of fins (14) at equal intervals, the fins (14) are symmetrically arranged outside the copper tube (13), a socket matching the copper tube (13) is arranged on the fins (14), a heat conducting sheet (15) is arranged inside the sockets, the heat conducting sheet (15) is located between adjacent copper tubes (13), the heat conducting sheet (15) and the fins (14) are both in contact with the copper tube (13), a limiting component for limiting the position of the heat conducting sheet (15) is arranged outside the fins (14), and a cleaning component for cleaning the heat conducting sheet (15) is arranged outside the frame (12). The top wall of the frame (12) is provided with a slide groove corresponding to the fin (14), a slider (16) is slidably installed in the slide groove, a cavity is provided inside the slider (16), a rectangular plate (18) is slidably installed in the cavity, a first spring (19) is fixedly installed on the top of the rectangular plate (18), a connecting rod (17) is fixedly installed on the bottom of the rectangular plate (18), the bottom end of the connecting rod (17) extends outside the cavity and is fixedly connected to the corresponding fin (14), a driving component for driving the slider (16) to move along the slide groove is provided on the outside, a collecting component for collecting dust is provided on the outside of the frame (12), and a lifting component for lifting the fin (14) is provided on the outside of the frame (12).

4. The dual-action temperature control device for power batteries for new energy rail locomotives according to claim 3 is characterized in that: The driving assembly comprises a pull rope (22) fixedly connected to a side of the slider (16) away from the center of the frame (12); a second spring (20) is sleeved on the outside of the pull rope (22) and located in the slide groove; the two ends of the second spring (20) are respectively fixedly connected to the slider (16) and the inner wall of the slide groove; a winding rod (21) cooperating with the pull rope (22) is rotatably installed on the outside of the frame (12); one end of the pull rope (22) away from the slider (16) extends to the outside of the slide groove and is fixedly connected to the winding rod (21); a motor (34) corresponding to the winding rod (21) is fixedly connected to the outside of the frame (12); and the output shaft of the motor (34) is drivingly connected to the end of the winding rod (21).

5. The dual-action temperature control device for power batteries for new energy rail locomotives according to claim 4 is characterized in that: The lifting assembly comprises a lifting plate (23) symmetrically arranged at the lower outer side of the frame (12); a vertical slot corresponding to the end of the lifting plate (23) is provided at the lower outer side of the frame (12); both ends of the lifting plate (23) are slidably arranged in the corresponding vertical slots; an electromagnet (24) is fixedly mounted on the top wall of the vertical slot; and the material of the two ends of the lifting plate (23) is iron.

6. The dual-action temperature control device for power batteries for new energy rail locomotives according to claim 5 is characterized in that: The limiting assembly comprises a limiting strip (25) symmetrically fixedly mounted outside the heat conducting sheet (15); a limiting plate (26) matched with the limiting strip (25) is fixedly mounted outside the fin (14); the limiting plate (26) can move downward along the limiting strip (25); the limiting plate (26) has a "7"-shaped cross section; two sides of the limiting strip (25) are respectively fitted with the inner sides of the fin (14) and the limiting plate (26).

7. The dual-action temperature control device for power batteries for new energy rail locomotives according to claim 6 is characterized in that: The cleaning assembly comprises a thin tube (27) fixedly mounted on the bottom of the limit plate (26); a suction port facing the heat conducting plate (15) is provided at the bottom of the thin tube (27); a plurality of thin tubes (27) on the same side are connected to each other via a hard tube (28); a hose (29) connected to the hard tube (28) is connected to the bottom of the hard tube (28); the bottom ends of the plurality of hoses (29) on the same side are commonly connected to a transverse tube (30); a vacuum cleaner (31) is fixedly mounted on the lower part of one side of the frame (12); the suction end of the vacuum cleaner (31) is fixedly connected to one end of the transverse tube (30).

8. The dual-action temperature control device for power batteries for new energy rail locomotives according to claim 7 is characterized in that: The collecting assembly comprises a collecting pipe (33) symmetrically fixedly connected to the lower part of the frame (12); the outside of the dust collector (31) is connected to the collecting pipe (33) via a suction pipe (32); a collecting port is provided at the top of the collecting pipe (33); and electric control valves are provided in the suction pipe (32) and the transverse pipe (30).

9. A dual-acting temperature control system for a power battery for a new energy rail locomotive, comprising the dual-acting temperature control device for a power battery for a new energy rail locomotive as claimed in claim 8.

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