CN217753411U - Power battery waste heat recovery system - Google Patents
Power battery waste heat recovery system Download PDFInfo
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- CN217753411U CN217753411U CN202222278329.7U CN202222278329U CN217753411U CN 217753411 U CN217753411 U CN 217753411U CN 202222278329 U CN202222278329 U CN 202222278329U CN 217753411 U CN217753411 U CN 217753411U
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- water tank
- heat exchanger
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- water pump
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Abstract
The utility model discloses a power battery waste heat recovery system in power battery technical field, including the battery management system, battery management system electrical output connects expansion tank, expansion tank electrical output connects water pump one, water pump electrical output connects plate heat exchanger one, a plate heat exchanger electric connection compressor refrigerator, a plate heat exchanger electric output connects warm braw water tank and radiator, the lower extreme of warm braw water tank and radiator all communicates the outlet pipe, warm braw water tank and radiator pass through outlet pipe intercommunication engine hot-water tank, engine hot-water tank output electric connection water pump two, two electrical output of water pump connect tee bend solenoid valve one, a tee bend solenoid valve electric output connects plate heat exchanger two replaces hydraulic heater among the original battery thermal management system, makes the engine alone run or stop work under the condition that the battery need not heat, and the PTC hydraulic heater is add and the passenger cabin heating is satisfied.
Description
Technical Field
The utility model relates to a power battery technical field specifically is a power battery waste heat recovery system.
Background
The new energy hybrid vehicle is more and more concerned by people in life, and the existing electric hybrid vehicle has the problem that when a battery in the energy vehicle is in a low-temperature environment in winter, the battery is generally heated by a liquid heater in a battery thermal management system, the hydraulic heater and an engine are electrically connected and synchronously run and are mutually influenced but cannot run independently, and excessive heat generated by the running of the engine is directly wasted and cannot be reasonably utilized in winter due to the fact that the temperature in winter is too low. Therefore, a power battery waste heat recovery system is provided.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a power battery waste heat recovery system to solve the problem that proposes among the above-mentioned background art.
In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a power battery waste heat recovery system, includes battery management system, battery management system electrical output connects expansion tank, expansion tank electrical output connects water pump one, a water pump electrical output connects plate heat exchanger one, a plate heat exchanger electric connection compressor refrigerator, a plate heat exchanger electric output connects warm braw water tank and radiator, the lower extreme of warm braw water tank and radiator all communicates the outlet pipe, warm braw water tank and radiator pass through outlet pipe intercommunication engine hot-water tank, engine hot-water tank output electric connection water pump two, two electric output of water pump connect tee bend solenoid valve one, a tee bend solenoid valve electric output connects plate heat exchanger two, two electric connection battery management systems of plate heat exchanger, the warm braw water tank is connected tee bend solenoid valve two with the equal electric output of radiator.
Further, the battery management system comprises a motor driving module and a battery core temperature feedback module, the motor driving module comprises a driving motor, the driving motor is electrically connected with a battery pack, the operating temperature of the driving motor is higher than the operating temperature of the driving motor, and the optimal working temperature is set to be higher than the operating temperature of the driving motor.
Furthermore, the two three-way electromagnetic valves are respectively connected with the cyclone water tank, the radiator and the one three-way electromagnetic valve.
Furthermore, the three-way electromagnetic valve is respectively connected with a water pump II, a plate heat exchanger II and an electromagnetic heat exchange valve II.
Furthermore, a PTC liquid heater is arranged between the first three-way electromagnetic valve and the second three-way electromagnetic valve.
Compared with the prior art, the beneficial effects of the utility model are that: the utility model discloses utilize the heat that the engine produced in the work, preheat the use for power battery with heat recovery for hydraulic heater's use among the original battery thermal management system can make the engine alone operation or stop work under the condition that the battery need not heat, and can add PTC hydraulic heater and satisfy passenger cabin heating demand.
Drawings
Fig. 1 is the utility model discloses battery waste heat recovery system functional block diagram.
In the figure: 1. a battery management system; 2. an expansion tank; 3. a first plate heat exchanger; 4. a compressor refrigerator; 5. a plate heat exchanger II; 6. a water outlet pipe; 7. a warm air water tank; 8. a heat sink; 9. a three-way electromagnetic valve II; 10. an engine hot water tank; 11. a second water pump; 12. a three-way electromagnetic valve I; 13. and a first water pump.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1, the present invention provides a technical solution: a power battery waste heat recovery system comprises a battery management system 1, wherein batteries in the battery management system 1 are used in winter environment, when the temperature is lower than 5 ℃, the battery does not work, the battery management system 1 is electrically output and connected with the expansion water tank 2, the expansion water tank 2 is electrically output and connected with the first water pump 13, the first water pump 13 is electrically output and connected with the first plate heat exchanger 3, the first plate heat exchanger 3 is electrically connected with the compressor refrigerator 4, when the temperature is too low, an engine of the vehicle is started, the second water pump 11 is turned on when the vehicle engine is started, and the compressor refrigerator 4 is not operated, preheating the battery pack, turning off the engine of the vehicle when the temperature of the water entering and exiting the battery is stabilized at 25 ℃, meanwhile, the second water pump 11 is closed, the working state of a driving motor in the inner cavity of the battery management system 1 is achieved, a self-circulation mode is achieved, the first plate heat exchanger 3 is electrically connected with the warm air water tank 7 and the radiator 8 in an output mode, the lower ends of the warm air water tank 7 and the radiator 8 are both communicated with the water outlet pipe 6, the warm air water tank 7 and the radiator 8 are communicated with the engine hot water tank 10 through the water outlet pipe 6, the output end of the engine hot water tank 10 is electrically connected with the second water pump 11, the second water pump 11 is electrically connected with the first three-way electromagnetic valve 12 in an output mode, the first three-way electromagnetic valve 12 is electrically connected with the second plate heat exchanger 5 in an output mode, the second plate heat exchanger 5 is electrically connected with the battery management system 1, the warm air water tank 7 and the radiator 8 are both electrically connected with the second three-way electromagnetic valve 9 in an output mode, a group of PTC liquid heaters can be added between the first three-way electromagnetic valve 12 and the second three-way electromagnetic valve 9 to perform a warm air mode on the passenger compartment, at the moment, the second water pump 11 is started to open a 1-1 channel of the first three-way electromagnetic valve 12, a 2-1 channel of the second three-way electromagnetic valve 9 is opened, and a warm air ventilation mode is opened.
The battery management system 1 comprises a motor driving module and a battery cell temperature feedback module, the motor driving module comprises a driving motor, the driving motor is electrically connected with a battery pack, the operating temperature of the driving motor is more than 5 ℃, the optimal working temperature is 25 ℃, and the temperature of the battery pack can be effectively detected through the battery cell temperature feedback module during driving, so that the starting and stopping of the driving motor are controlled;
and a PTC liquid heater is arranged between the first three-way electromagnetic valve 12 and the second three-way electromagnetic valve 9, a warm air mode can be added in the cockpit, and then when the warm air mode is operated, the work of the battery thermal management system is not influenced by adopting the PTC liquid heater mode.
Example (b): under the winter environment, when the temperature is lower than 5 ℃, the battery does not work, when the temperature is too low, the engine of the vehicle is started, the water pump II 11 is opened when the engine of the vehicle is started, at the moment, the compressor refrigerator 4 does not work, the battery pack is preheated, when the temperature of water flowing in and out of the battery is stabilized at 25 ℃, the engine of the vehicle is closed, the water pump II 11 is closed at the same time, the working state of the driving motor in the inner cavity of the battery management system 1 is achieved, the self-circulation mode is achieved, a group of PTC liquid heaters can be added between the three-way electromagnetic valve I12 and the three-way electromagnetic valve II 9 to perform the warm air mode on the passenger compartment, at the moment, the water pump II 11 is started to open the 1-1 channel of the three-way electromagnetic valve I12, the 2-1 channel of the three-way electromagnetic valve II 9 is opened, and the warm air ventilation mode is opened.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (5)
1. The utility model provides a power battery waste heat recovery system, includes battery management system (1), its characterized in that: battery management system (1) electrical output connects expansion tank (2), expansion tank (2) electrical output connects water pump (13), water pump (13) electrical output connects plate heat exchanger (3), plate heat exchanger (3) electric connection compressor refrigerator (4), plate heat exchanger (3) electrical output connects warm braw water tank (7) and radiator (8), warm braw water tank (7) all communicates outlet pipe (6) with the lower extreme of radiator (8), warm braw water tank (7) and radiator (8) communicate engine hot-water tank (10) through outlet pipe (6), engine hot-water tank (10) output end electric connection water pump two (11), water pump two (11) electrical output connects tee bend solenoid valve (12), tee bend solenoid valve one (12) electrical output connects plate heat exchanger two (5), plate heat exchanger two (5) electrical connection battery management system (1), warm braw water tank (7) and radiator (8) equal electrical output connects tee bend solenoid valve two (9).
2. The power battery waste heat recovery system according to claim 1, characterized in that: the battery management system (1) comprises a motor driving module and a battery cell temperature feedback module, the motor driving module comprises a driving motor, the driving motor is electrically connected with a battery pack, the operating temperature of the driving motor is higher than 5 ℃, and the optimal working temperature is 25 ℃.
3. The power battery waste heat recovery system of claim 1, characterized in that: the three-way electromagnetic valve II (9) is respectively connected with the warm air water tank (7), the radiator (8) and the three-way electromagnetic valve I (12).
4. The power battery waste heat recovery system of claim 1, characterized in that: the three-way electromagnetic valve I (12) is respectively connected with a water pump II (11), the plate type heat exchanger II (5) and the three-way electromagnetic valve II (9).
5. The power battery waste heat recovery system of claim 1, characterized in that: and a PTC liquid heater is arranged between the first three-way electromagnetic valve (12) and the second three-way electromagnetic valve (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222278329.7U CN217753411U (en) | 2022-08-29 | 2022-08-29 | Power battery waste heat recovery system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222278329.7U CN217753411U (en) | 2022-08-29 | 2022-08-29 | Power battery waste heat recovery system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217753411U true CN217753411U (en) | 2022-11-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222278329.7U Active CN217753411U (en) | 2022-08-29 | 2022-08-29 | Power battery waste heat recovery system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217753411U (en) |
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2022
- 2022-08-29 CN CN202222278329.7U patent/CN217753411U/en active Active
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