A new energy vehicle battery pack heater

Abstract

The present invention relates to a new energy vehicle battery pack heater, comprising a vehicle-mounted heat exchanger and a battery pack heater, the vehicle-mounted heat exchanger is directly connected to the vehicle-mounted air conditioner, and a vehicle-mounted motor is installed on the upper part of the vehicle-mounted heat exchanger, the battery pack heater is wrapped with the new energy vehicle battery, and spiral heat-absorbing coils and spiral heat-releasing coils wrapped alternately are installed inside the vehicle-mounted heat exchanger, and the space between the spiral heat-absorbing coils and the spiral heat-releasing coils is filled with a heat exchanger heat transfer medium; the present invention timely collects and diverts the heat generated by the vehicle air conditioner and the motor when they are working to the heat exchanger, heats the heat transfer medium by heat exchange, and circulates the heat transfer medium to the heater to realize cyclic heating of the battery pack by the circulating heating tube through the heat transfer plate, heat transfer sheet and fin, without the need for external heat source to achieve heating, thereby reducing the energy consumption of the new energy vehicle, effectively extending the endurance of the energy vehicle, improving the service life and efficiency of the vehicle battery, and effectively avoiding battery power outage at low temperatures.

Description

Technical Field

[0001] The present invention relates to the technical field of new energy vehicle batteries, and in particular to a new energy vehicle battery pack heater. Background Art

[0002] New energy vehicles are a product of the changing times and environmental demands. The utilization of new energy sources has given them a promising future. Currently, new energy vehicles are primarily powered by batteries. However, it's important to note that current new energy battery technology can experience reduced power efficiency and shorter power supply durations in both low and high ambient temperatures, severely impacting the vehicle's range and reducing the user experience. Summary of the Invention

[0003] In order to overcome the problems existing in the background technology, the present invention provides a new energy vehicle battery pack heater, which controls the temperature of the new energy vehicle battery by connecting a heat exchanger and a heater in series, thereby improving the battery power supply efficiency and duration, and increasing the cruising range of the new energy vehicle.

[0004] To achieve the purpose of the present invention, the technical solution adopted is:

[0005] A new energy vehicle battery pack heater includes a vehicle-mounted heat exchanger and a battery pack heater. The vehicle-mounted heat exchanger is directly connected to the vehicle-mounted air conditioner, and a vehicle-mounted motor is installed on the upper part of the vehicle-mounted heat exchanger. The battery pack heater is wrapped around the new energy vehicle battery; a circulating heating delivery pump is installed between the vehicle-mounted heat exchanger and the battery pack heater, and the battery pack heater includes a heater insulation shell, a heater circulation heating tube is installed inside the heater insulation shell, a heating tube heat transfer plate is installed inside the heater circulation heating tube, and a plurality of heat transfer plate heat conducting sheets that fit the vehicle battery and heat transfer plate heat transfer fins that isolate the vehicle battery are installed between the heating tube heat transfer plates; spiral heat absorbing coils and spiral heat releasing coils that are alternately wrapped are installed inside the vehicle-mounted heat exchanger, and a heat exchanger heat transfer medium is filled between the spiral heat absorbing coils and the spiral heat releasing coils. The vehicle-mounted heat exchanger includes a heat exchanger shell, the outer surface of the heat exchanger shell is wrapped with a heat exchanger insulation shell, and the inner surface is wrapped with a heat exchanger insulation shell.

[0006] Preferably, the vehicle heater and battery pack heater are equipped with intelligent temperature detectors, and the intelligent operation of the vehicle heater, battery pack heater, circulating heating delivery pump, vehicle air conditioner, vehicle motor and intelligent temperature detector is realized through the vehicle intelligent control system to realize overall intelligent control.

[0007] Preferably, the vehicle-mounted heat exchanger is connected to the air outlet of the vehicle-mounted air conditioner through the air conditioner connecting inlet pipe, and the heat exchange gas is discharged through the heat exchanger outlet pipe.

[0008] Preferably, the two ends of the spiral heat release coil are connected between the air conditioner connecting air inlet pipe and the heat exchanger outlet pipe, and the vehicle air conditioner, the air conditioner connecting air inlet pipe, the vehicle heat exchanger, the spiral heat release coil (18) and the heat exchanger outlet pipe form a heat release route.

[0009] Preferably, the vehicle-mounted heat exchanger is connected to the battery pack heater via a circulating heating connecting pipe, and the vehicle-mounted heat exchanger, the battery pack heater, the circulating heating connecting pipe and the spiral heat-absorbing coil form a circulating heating route.

[0010] Preferably, the upper surface of the vehicle-mounted heat exchanger is provided with a motor mounting heat exchange groove for mounting the vehicle-mounted motor, and the lower part of the motor mounting heat exchange groove is provided with a motor heat exchange plate directly connected to the heat exchanger insulation shell and the heat exchanger heat transfer medium.

[0011] Preferably, a car battery installation electrical connection slot is provided in the middle of the heat transfer plate and the heat conducting sheet, and the car battery is inserted into the car battery installation electrical connection slot to realize the car battery conduction and power supply.

[0012] Preferably, the circulating heating connecting pipe, the heater circulating heating pipe and the spiral heat absorbing coil are filled with a heater heat transfer medium, and the heater heat transfer medium is set to be one of pure water, brine with a mass concentration of 10-60%, heat transfer oil and liquid metal.

[0013] Preferably, the heat transfer medium of the heat exchanger is set to be one of pure water, brine with a mass concentration of 10-60%, thermal oil, liquid metal, thermal conductive nano-carbon powder, nano-metal short fibers, and nano-carbon short fibers.

[0014] Preferably, the saline solution with a mass concentration of 10-60% is a solution prepared by mixing sodium chloride, potassium chloride, potassium nitrate, sodium nitrate, sodium sulfate, potassium sulfate, sodium carbonate / sodium bicarbonate, potassium dihydrogen phosphate / potassium hydrogen phosphate, artificial plasma, and deionized water with a mass concentration of 10-60%.

[0015] Preferably, a battery pack electric heater is installed in the heating tube heat transfer plate, the heat transfer plate heat conducting sheet and the heat transfer plate heat transfer fins, and the battery pack electric heater on-board intelligent control system realizes intelligent auxiliary heating.

[0016] The beneficial effects of the present invention are:

[0017] The battery pack heater of the present invention timely collects the heat generated by the car air conditioner and electric motor when they are working and diverts it to the heat exchanger, heats the heat transfer medium through heat exchange, and circulates the heat transfer medium to the heater to realize the circulating heating tube to realize cyclic heating of the battery pack through the heat transfer plate, heat transfer sheet and fin, without the aid of external heat source to achieve heating, greatly reducing the energy consumption of new energy vehicles, effectively extending the endurance of energy vehicles, improving the service life and efficiency of vehicle batteries, and effectively avoiding the occurrence of dangerous accidents such as power failure of new energy vehicle batteries due to low temperature, or even endangering personal safety or property safety. It has obvious technical practicality and promotion and application value. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structural layout of the new energy vehicle battery pack heater of the present invention.

[0019] Figure 2 It is a schematic structural diagram of a battery pack heater for a new energy vehicle battery pack heater of the present invention.

[0020] In the picture:

[0021] 1. On-board heat exchanger; 2. Battery pack heater; 3. Circulating heating delivery pump; 4. Air conditioning connection inlet pipe; 5. Heat exchanger outlet pipe; 6. Heat exchange slot for motor installation; 7. Circulating heating connecting pipe; 8. Heat insulation shell for heater; 9. Circulating heating pipe for heater; 10. Heat transfer plate for heating pipe; 11. Electrical connection slot for vehicle battery installation; 12. Heat transfer plate heat conducting sheet; 13. Heat transfer plate heat transfer fins; 14. Heat exchanger shell; 15. Heat exchanger insulation shell; 16. Heat exchanger insulation shell; 17. Spiral heat absorption coil; 18. Spiral heat release coil; 19. Heat transfer medium for heat exchanger; 20. Heat transfer plate for motor. DETAILED DESCRIPTION

[0022] The following will be combined with the technical content of the embodiments described in the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0023] Example 1

[0024] like Figure 1 As shown, a new energy vehicle battery pack heater includes a vehicle-mounted heat exchanger 1 and a battery pack heater 2. The vehicle-mounted heat exchanger 1 is directly connected to the vehicle air conditioner, and a vehicle-mounted electric motor is installed on the upper part of the vehicle-mounted heat exchanger 1. The battery pack heater 2 is wrapped and installed in the new energy vehicle battery.

[0025] like Figure 1As shown, a new energy vehicle battery pack heater is provided. A circulating heating delivery pump 3 is installed between the vehicle-mounted heat exchanger 1 and the battery pack heater 2. The battery pack heater 2 includes a heater insulation shell 8. A heater circulation heating tube 9 is installed inside the heater insulation shell 8. A heating tube heat transfer plate 10 is installed inside the heater circulation heating tube 9. A plurality of heat transfer plate heat conducting sheets 12 that fit the vehicle battery and heat transfer plate heat transfer fins 13 that isolate the vehicle battery are installed between the heating tube heat transfer plates 10.

[0026] like Figure 1 As shown, a new energy vehicle battery pack heater is provided. An intelligent temperature detector is installed on the vehicle heater 1 and the battery pack heater 2. The intelligent operation of the vehicle heater 1, the battery pack heater 2, the circulating heating delivery pump 3, the vehicle air conditioner, the vehicle motor and the intelligent temperature detector is controlled as a whole through the vehicle intelligent control system.

[0027] like Figure 2 As shown, a new energy vehicle battery pack heater has an on-board heat exchanger 1 with alternately wrapped spiral heat-absorbing coils 17 and spiral heat-releasing coils 18 installed inside. The space between the spiral heat-absorbing coils 17 and the spiral heat-releasing coils 18 is filled with a heat exchanger heat transfer medium 19. The on-board heat exchanger 1 includes a heat exchanger shell 14. The outer surface of the heat exchanger shell 14 is wrapped with a heat exchanger insulation shell 15, and the inner surface is wrapped with a heat exchanger heat preservation shell 16.

[0028] like Figure 1 、 2 As shown, a new energy vehicle battery pack heater, the vehicle-mounted heat exchanger 1 is connected to the air outlet of the vehicle air conditioner through the air conditioning connecting inlet pipe 4, and the heat exchanged gas is discharged through the heat exchanger outlet pipe 5. The two ends of the spiral heat release coil 18 are connected between the air conditioning connecting inlet pipe 4 and the heat exchanger outlet pipe 5. The vehicle-mounted air conditioner, the air conditioning connecting inlet pipe 4, the vehicle-mounted heat exchanger 1, the spiral heat release coil 18 and the heat exchanger outlet pipe 5 form a heat release route. The vehicle-mounted heat exchanger 1 is connected to the battery pack heater 2 through the circulating heating connecting pipe 7. The vehicle-mounted heat exchanger 1, the battery pack heater 2, the circulating heating connecting pipe 7 and the spiral heat absorption coil 17 form a circulating heating route.

[0029] like Figure 2 As shown, a new energy vehicle battery pack heater is provided. The upper surface of the vehicle-mounted heat exchanger 1 is provided with a motor mounting heat exchange groove 6 for mounting the vehicle-mounted motor. The lower part of the motor mounting heat exchange groove 6 is provided with a motor heat exchange plate 20 directly connected to the heat exchanger insulation shell 16 and the heat exchanger heat transfer medium 19.

[0030] like Figure 1As shown, a new energy vehicle battery pack heater has a car battery installation electrical connection slot 11 provided in the middle of the heat transfer plate and heat conducting sheet 12. The car battery is inserted into the car battery installation electrical connection slot 11 to realize the conduction and power supply of the car battery.

[0031] like Figure 1 、 2 As shown, a new energy vehicle battery pack heater, the circulating heating connecting pipe 7, the heater circulating heating pipe 9 and the spiral heat absorption coil 17 are filled with a heater heat transfer medium, the heater heat transfer medium is set to one of pure water, brine with a mass concentration of 10-60%, heat transfer oil, and liquid metal, the heat exchanger heat transfer medium 19 is set to one of pure water, brine with a mass concentration of 10-60%, heat transfer oil, liquid metal, heat-conducting nano-carbon powder, nano-metal short fibers, and nano-carbon short fibers, the brine with a mass concentration of 10-60% is set to a solution prepared by mixing sodium chloride, potassium chloride, potassium nitrate, sodium nitrate, sodium sulfate, potassium sulfate, sodium carbonate / sodium bicarbonate, potassium dihydrogen phosphate / dipotassium hydrogen phosphate, artificial plasma, and deionized water with a mass concentration of 10-60%.

[0032] When the onboard intelligent control system directly detects that the temperature of the new energy vehicle battery pack is only 5-10°C higher than the critical power-off temperature of the battery pack, the onboard intelligent control system controls the onboard air conditioning to divert the air, and directly delivers the air conditioning hot air to the spiral heat release coil 18 in the onboard heat exchanger 1 through the air conditioning connection intake pipe 4 for heat release. The heat is directly transferred to the heat transfer medium 19 of the heat exchanger, and then transferred to the spiral heat absorption coil 17 through the heat transfer medium 19.

[0033] Start the circulating heating delivery pump 3, which drives the heater heat transfer medium in the circulating heating connecting pipe 7, the heater circulating heating pipe 9 and the spiral heat absorption coil 17 to pump and circulate, and transfer and exchange heat through the heat exchanger heat transfer medium 19 in the vehicle-mounted heat exchanger 1. After the heat is collected, it is transported to the battery pack heater 2 through the circulating heating connecting pipe 7 and the heater circulating heating pipe 9. The heat is first transferred to the heating pipe heat transfer plate 10 and the heat transfer plate heat conducting sheet 12 through the heater circulating heating pipe 9, and then transferred to the heat transfer plate heat transfer fins 13 through the heating pipe heat transfer plate 10, thereby realizing the wrapped circulating heat transfer heating of the new energy vehicle battery pack, promoting the temperature of the new energy vehicle battery pack to rise, and timely monitoring the temperature of the new energy vehicle battery pack through the intelligent temperature detectors on the vehicle-mounted heater 1 and the battery pack heater 2, so that it can maintain a constant temperature state at the optimal working temperature.

[0034] Example 2

[0035] The difference between this embodiment and embodiment 1 is that:

[0036] A new energy vehicle battery pack heater replaces the vehicle-mounted heater 1, battery pack heater 2, and circulating heating delivery pump 3 as a whole with a battery pack heater that performs electrical heating via an electric heating tube. The electrically heated battery pack heater is intelligently controlled by an on-board intelligent control system and is directly powered by the new energy vehicle battery pack. When the set temperature is 2-10°C higher than the critical power-off temperature of the battery pack, the electrically heated battery pack heater automatically starts heating to maintain the battery pack in a constant temperature state at an optimal operating temperature.

[0037] Example 3

[0038] The difference between this embodiment and embodiments 1 and 2 is that:

[0039] A new energy vehicle battery pack heater replaces the on-board heater 1, battery pack heater 2, and circulating heating delivery pump 3 as a whole. The on-board air conditioner is used to directly heat the new energy vehicle battery pack through air heat transfer. When the set temperature is 2-10°C higher than the critical power-off temperature of the battery pack, the on-board air conditioner automatically diverts the heated air to the new energy vehicle battery pack to heat the new energy vehicle battery pack. The on-board air conditioner is directly powered by the new energy vehicle battery pack and will automatically start to maintain the battery pack in a constant temperature state at the optimal operating temperature.

[0040] In the present invention, the battery pack heater of the present invention timely collects the heat generated by the automobile air conditioner and the electric motor when they are working and diverts it to the heat exchanger, heats the heat transfer medium through heat exchange, and circulates the heat transfer medium to the heater to realize the circulating heating tube to realize cyclic heating of the battery pack through the heat transfer plate, heat transfer sheet and fin, without the help of external heat source to achieve heating, greatly reducing the energy consumption of new energy vehicles, effectively extending the endurance of energy vehicles, improving the service life and efficiency of vehicle batteries, and effectively avoiding the occurrence of dangerous accidents such as power failure of new energy vehicle batteries caused by low temperature, and even endangering personal safety or property safety. It has obvious technical practicality and promotion and application value.

[0041] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A new energy vehicle battery pack heater, characterized by: The invention comprises a vehicle-mounted heat exchanger (1) and a battery pack heater (2), wherein the vehicle-mounted heat exchanger (1) is directly connected to the vehicle-mounted air conditioner, an onboard electric motor is installed on the upper part of the vehicle-mounted heat exchanger (1), and the battery pack heater (2) is installed inside the battery of the new energy vehicle; A circulating heating delivery pump (3) is installed between the vehicle-mounted heat exchanger (1) and the battery pack heater (2); the battery pack heater (2) includes a heater heat insulation shell (8); a heater circulation heating pipe (9) is installed inside the heater heat insulation shell (8); a heating pipe heat transfer plate (10) is installed inside the heater circulation heating pipe (9); and a plurality of heat transfer plate heat conducting sheets (12) that fit the vehicle battery and heat transfer plate heat transfer fins (13) that isolate the vehicle battery are installed between the heating pipe heat transfer plates (10); The vehicle-mounted heat exchanger (1) is internally provided with alternately wrapped spiral heat-absorbing coils (17) and spiral heat-releasing coils (18), and a heat exchanger heat transfer medium (19) is filled between the spiral heat-absorbing coils (17) and the spiral heat-releasing coils (18). The vehicle-mounted heat exchanger (1) includes a heat exchanger housing (14), the outer surface of the heat exchanger housing (14) is wrapped with a heat exchanger heat-insulating shell (15), and the inner surface is wrapped with a heat exchanger heat-insulating shell (16); The vehicle heater (1) and the battery pack heater (2) are provided with intelligent temperature detectors, and the intelligent operation of the vehicle heater (1), the battery pack heater (2), the circulating heating delivery pump (3), the vehicle air conditioner, the vehicle motor and the intelligent temperature detector is controlled as a whole through the vehicle intelligent control system; The vehicle-mounted heat exchanger (1) is connected to the air outlet of the vehicle-mounted air conditioner through the air conditioner connecting inlet pipe (4), and the heat exchanged gas is discharged through the heat exchanger outlet pipe (5); the two ends of the spiral heat release coil (18) are connected between the air conditioner connecting inlet pipe (4) and the heat exchanger outlet pipe (5), and the vehicle-mounted air conditioner, the air conditioner connecting inlet pipe (4), the vehicle-mounted heat exchanger (1), the spiral heat release coil (18) and the heat exchanger outlet pipe (5) form a heat release route; the vehicle-mounted heat exchanger (1) is connected to the battery pack heater (2) through the circulation heating connecting pipe (7), and the vehicle-mounted heat exchanger (1), the battery pack heater (2), the circulation heating connecting pipe (7) and the spiral heat absorption coil (17) form a circulation heating route; The upper surface of the vehicle-mounted heat exchanger (1) is provided with a motor-mounted heat exchange groove (6) for mounting the vehicle-mounted motor, and the lower portion of the motor-mounted heat exchange groove (6) is provided with a motor heat exchange plate (20) directly connected to the heat exchanger insulation shell (16) and the heat exchanger heat transfer medium (19).

2. The new energy vehicle battery pack heater according to claim 1, characterized in that: A car battery installation electrical connection slot (11) is provided in the middle of the heat transfer plate and heat conducting sheet (12); a car battery is inserted into the car battery installation electrical connection slot (11) to realize conduction and power supply of the car battery.

3. The new energy vehicle battery pack heater according to claim 2, characterized in that: The circulating heating connecting pipe (7), the heater circulating heating pipe (9) and the spiral heat absorbing coil (17) are filled with a heater heat transfer medium, and the heater heat transfer medium is set to be one of pure water, salt water with a mass concentration of 10-60%, heat transfer oil, and liquid metal.

4. The new energy vehicle battery pack heater according to claim 3, characterized in that: The heat transfer medium (19) of the heat exchanger is set to be one of pure water, salt water with a mass concentration of 10-60%, heat-conducting oil, liquid metal, heat-conducting nano-carbon powder, nano-metal short fibers, and nano-carbon short fibers.

5. The new energy vehicle battery pack heater according to claim 4, characterized in that: The saline solution with a mass concentration of 10-60% is a solution prepared by mixing sodium chloride, potassium chloride, potassium nitrate, sodium nitrate, sodium sulfate, potassium sulfate, sodium carbonate / sodium bicarbonate, potassium dihydrogen phosphate / dipotassium hydrogen phosphate, artificial plasma, and deionized water with a mass concentration of 10-60%.

6. The new energy vehicle battery pack heater according to claim 5, characterized in that: A battery pack electric heater is installed in the heating tube heat transfer plate (10), the heat transfer plate heat conducting sheet (12) and the heat transfer plate heat transfer fin (13), and the battery pack electric heater vehicle-mounted intelligent control system realizes intelligent auxiliary heating.

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