CN211654994U - Whole vehicle thermal management system applied to power battery of electric vehicle - Google Patents
Whole vehicle thermal management system applied to power battery of electric vehicle Download PDFInfo
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- CN211654994U CN211654994U CN202020228847.6U CN202020228847U CN211654994U CN 211654994 U CN211654994 U CN 211654994U CN 202020228847 U CN202020228847 U CN 202020228847U CN 211654994 U CN211654994 U CN 211654994U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/70—Energy storage systems for electromobility, e.g. batteries
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Abstract
The utility model provides a be applied to whole car thermal management system of electric automobile power battery, include: the system comprises a liquid cooling pipeline system and a primary cold air pipeline system so as to heat and cool the power battery of the electric automobile. The utility model discloses a whole car thermal management system who is applied to electric automobile power battery changes the whole car less, easily realizes; the space requirement is small, and the device is suitable for small vehicles with insufficient space volume; the cost is low.
Description
Technical Field
The utility model belongs to the technical field of electric automobile, especially, relate to a be applied to whole car thermal management system of electric automobile power battery.
Background
The power battery is a power source spring of the electric automobile and is also a key of the electric automobile, and is a key ring for improving the performance of the whole automobile and reducing the cost, and the temperature characteristic of the power battery directly influences the performance, the service life and the durability of the electric automobile. The power battery can exert the best performance only by working in a proper temperature range, and the performance and the service life of the power battery are greatly influenced by overhigh or overlow temperature. Therefore, scientific and effective thermal management of the battery of the pure electric vehicle is extremely important.
At present, a whole set of complete air conditioning system is adopted in the market, and the air conditioning system only has a cooling function and does not have a warming function. In addition, the system is high in cost and large in size, is only suitable for vehicles with large space such as buses and buses, and other vehicles with compact space such as passenger cars can not carry the system.
Disclosure of Invention
In order to solve the technical problem, the utility model provides a be applied to whole car thermal management system of electric automobile power battery.
The following presents a simplified summary in order to provide a basic understanding of some aspects of the disclosed embodiments. This summary is not an extensive overview and is intended to neither identify key/critical elements nor delineate the scope of such embodiments. Its sole purpose is to present some concepts in a simplified form as a prelude to the more detailed description that is presented later.
The utility model adopts the following technical scheme:
in some optional embodiments, a complete vehicle thermal management system applied to a power battery of an electric vehicle is provided, including: liquid cooling the battery; it is characterized by also comprising: the liquid cooling device, the water pump and the battery water channel of the liquid cooling battery are arranged on the liquid cooling pipeline; the water pump conveys the circulating water heated by the heating device into a battery water channel of the liquid-cooled battery to heat the liquid-cooled battery;
further comprising: a heat exchanger; the liquid cooling pipeline is connected with a whole vehicle air conditioning system of the electric vehicle through the heat exchanger; the whole vehicle air conditioning system shunts part of cold air to the heat exchanger, and the circulating water in the liquid cooling pipeline is cooled by the heat exchanger, so that the liquid cooling battery is cooled.
In some alternative embodiments, the heating device is a water heater.
In some alternative embodiments, the heat exchanger is a plate heat exchanger.
In some optional embodiments, the overall thermal management system applied to the power battery of the electric vehicle further includes: a water tank; the water tank is arranged on the liquid cooling pipeline.
In some optional embodiments, the air outlet of the heat exchanger is connected with a compressor of the whole vehicle air conditioning system, the compressor is connected with a condenser of the whole vehicle air conditioning system, and the air outlet of the condenser is connected with the air inlet of the plate heat exchanger.
In some optional embodiments, a first valve is arranged on a pipeline connecting the air inlet of the heat exchanger with the air outlet of the condenser.
In some optional embodiments, a pipeline connecting an air outlet of the heat exchanger and the compressor is communicated with an air outlet of an evaporator of a finished automobile air conditioning system; and a pipeline connecting the air outlet of the condenser and the air inlet of the heat exchanger is communicated with the air inlet of the evaporator.
In some optional embodiments, a second valve is arranged on a pipeline connecting the air outlet of the condenser and the air inlet of the evaporator.
The utility model discloses the beneficial effect who brings: the whole vehicle thermal management system applied to the power battery of the electric vehicle has small change on the whole vehicle and is easy to realize; the space requirement is small, and the device is suitable for small vehicles with insufficient space volume; the cost is low.
Drawings
Fig. 1 is a schematic diagram of a whole vehicle thermal management system applied to a power battery of an electric vehicle according to the present invention;
fig. 2 is the utility model relates to a be applied to whole car thermal management system's of electric automobile power battery work flow chart.
Detailed Description
The following description and the drawings sufficiently illustrate specific embodiments of the invention to enable those skilled in the art to practice them. Other embodiments may incorporate structural, logical, electrical, process, and other changes. The examples merely typify possible variations. Individual components and functions are optional unless explicitly required, and the sequence of operations may vary. Portions and features of some embodiments may be included in or substituted for those of others.
As shown in fig. 1, in some illustrative embodiments, an entire vehicle thermal management system applied to a power battery of an electric vehicle is provided, including: the system comprises a liquid cooling pipeline system and a primary cold air pipeline system so as to heat and cool the power battery of the electric automobile.
The liquid cooling pipe system is used for the coolant liquid circulation, includes: liquid cooling pipeline, water tank 1, heating device 2, heat exchanger 3 and water pump 4.
Wherein, heating device 2 is water heater, can guarantee lower cost simultaneously for the purpose of realizing effective heating circulating water.
The heat exchanger 3 is a plate heat exchanger, and has the advantages of high heat exchange efficiency, small heat loss, compact and light structure, small occupied area, wide application and long service life.
The battery water channels of the water tank 1, the heating device 2, the water pump 4 and the liquid cooling battery 5 are arranged on the liquid cooling pipeline, namely the water tank 1, the heating device 2, the water pump 4 and the liquid cooling battery 5 are connected in series to form a loop, and the water pump 4 provides circulating power for circulating water in the liquid cooling pipeline system.
The connection sequence of the water tank 1, the heating device 2, the water pump 4 and the liquid cooling battery 5 can be adjusted according to the actual situation of the vehicle, and the following is only an example of one of the connection modes: the water outlet of the battery water channel of the liquid cooling battery 5 is connected with the water inlet of the water tank 1, the water outlet of the water tank 1 is connected with the water inlet of the water pump 4, the water outlet of the water pump 4 is connected with the water inlet of the heating device 2, the water outlet of the heating device 2 is connected with the water inlet of the heat exchanger 3, and the water outlet of the heat exchanger 3 is connected with the water inlet of the battery water channel of the liquid cooling battery 5. Water from liquid cooling battery 5 and play gets into water tank 1, is gone into heating device 2 by water pump 4 pump again, and heating device 2 and battery water course are established ties, and heating device 2 can heat the coolant liquid, heats liquid cooling battery 5 through the drive of water pump 4 via the 3 battery water courses that flow in of heat exchanger.
The heating device 2 is a heat exchange system for heating, the heat exchanger 3 is a heat exchange system for cooling, and the cooling liquid is heated and cooled through the two systems. The heating function of liquid cooling battery adopts PTC heating device 2 to heat the coolant liquid promptly, will heat the module, and in heating device 2 series connection liquid cold pipe way system water route promptly, furthest reduce cost. Meanwhile, the power of the water heater can be adjusted, the water temperature can be quickly heated, and meanwhile, the power consumption can be reduced when the temperature reaches a temperature control point, so that the electric quantity is saved.
Wherein, the inside design of liquid cooling battery PACK has the special passageway of walking the coolant liquid, battery water course for short.
The liquid cooling pipeline is connected with the whole vehicle air conditioning system of the electric vehicle through the heat exchanger 3. The whole vehicle air conditioning system shunts part of the cold air to the heat exchanger 3, the circulating water in the liquid cooling pipeline is cooled by the heat exchanger 3, so that the liquid cooling battery is cooled, and when the liquid cooling battery is cooled, the heating device 2 does not work.
The invention relates to a primary cold air pipeline system used for primary cold air circulation, which comprises: compressor 6, condenser 7, evaporator 8, heat exchanger 3, solenoid valve, expansion valve 11. Wherein, the compressor 6, the condenser 7, the evaporator 8 and the expansion valve 12 are a whole vehicle air conditioning system.
The air outlet of the heat exchanger 3 is connected with a compressor 6 of the whole vehicle air conditioning system, the compressor 6 is connected with a condenser 7 of the whole vehicle air conditioning system, and the air outlet of the condenser 7 is connected with the air inlet of the heat exchanger 3. A pipeline for connecting the air outlet of the heat exchanger 3 with the compressor 6 is communicated with an air outlet of an evaporator 8 of the whole vehicle air conditioning system; and a pipeline connecting the air outlet of the condenser 7 with the air inlet of the heat exchanger 3 is communicated with the air inlet of the evaporator 8.
According to the cooling requirement of the liquid cooling battery and the refrigeration requirement of the whole vehicle, the power of the compressor 6 is properly increased, and reasonable original cold air distribution is carried out according to the requirement. The electromagnetic valve is used for controlling the on-off of the original cold air loop of the evaporator 8 and the original cold air loop of the plate heat exchanger according to actual needs, namely on the basis of an original vehicle, a part of cold energy is divided for cooling the battery, and the whole scheme is easy to realize. The battery cooling function is that the plate heat exchanger is connected in parallel on the basis of the original air conditioning system, the liquid is cooled by the heat exchanger 3, and the cooled liquid is used for cooling the liquid-cooled battery.
The solenoid valve includes: a first valve 9 and a second valve 10. A first valve 9 is arranged on a pipeline connecting an air inlet of the heat exchanger 3 and an air outlet of the condenser 7. A second valve 10 is arranged on a pipeline connecting the air outlet of the condenser 7 and the air inlet of the evaporator 8. The second valve 10 is used for controlling the on-off of an original air cooling loop of an evaporator of the air conditioner of the whole vehicle, the first valve 9 is used for controlling the on-off of the original air cooling loop of the plate heat exchanger, the two loops work independently, and the compressor 6 can automatically select proper working power according to the opening degree of the valve and the working requirement of the whole vehicle.
An expansion valve 11 is arranged on a pipeline connecting the compressor 6 and the condenser 7, the expansion valve enables a high-temperature high-pressure liquid refrigerant to be throttled into low-temperature low-pressure wet steam, then the refrigerant absorbs heat in the evaporator to achieve a refrigeration effect, the expansion valve controls the flow of the valve through the change of superheat degree at the tail end of the evaporator, and the phenomena of insufficient utilization of the area of the evaporator and cylinder knocking are prevented.
As shown in fig. 2, the working process of the entire vehicle thermal management system of the present invention includes:
101: and presetting parameters, and cooling the battery to work. Presetting the working temperature of the battery as [ A, B ], and fine adjustment quantity alpha; unit: DEG C.
102: the temperature of the liquid-cooled battery is detected.
103: it is determined whether temperature control is required. And when the temperature of the liquid cooling battery is not in the temperature range of [ A, B ], temperature control is required, if the temperature is required, the step 104 is carried out, otherwise, the step 102 is returned.
104: the water pump begins to operate.
105: the operating mode is determined. When the temperature of the battery is higher than B, the cooling function is started, and a temperature sensor is arranged in the battery PACK; when the battery temperature is lower than A, the heating function is started. When the temperature of the battery is reduced to A + alpha, the cooling system reduces power.
106: the second valve is opened.
107: the compressor is operated.
108: it is judged whether or not the setting is on. If yes, go to step 109, otherwise return to step 107.
109: the compressor reduces work.
110: and judging whether the set temperature is reached. If the set temperature is reached, go to step 111, otherwise return to step 109. And when the temperature of the battery is A, stopping the cooling function. When the temperature rises and reaches B, the temperature reduction action is repeated.
111: the compressor is stopped.
112: the second valve is closed.
113: the water pump is stopped. Returning to step 102.
When the battery temperature is lower than A, the heating function is started, and when the heating mode is performed, the following process is started:
114: the water heater is operated.
115: it is judged whether or not the setting is on. If yes, go to step 116, otherwise return to step 114.
116: and the water heater reduces the work. When the battery temperature rises to B- α, the heating system reduces power.
117: and judging whether the set temperature is reached. If the set temperature is reached, go to step 118, otherwise return to step 116.
118: the water heater is stopped. When the battery temperature is B, the heating function is stopped. When the temperature decreased and reached a, the heating action was repeated.
The confidence time for switching the cooling function and the heating function is T hours. That is, after the Th of the cooling or heating function is stopped and the start condition of the cooling or heating function is satisfied, the heat management function can be switched.
The above embodiment is the preferred embodiment of the present invention, but the embodiment of the present invention is not limited by the above embodiment, and any other changes, modifications, replacements, combinations, simplifications, equivalent replacement modes, which are not departed from the spirit and principle of the present invention, should be included in the protection scope of the present invention.
Claims (8)
1. The utility model provides a whole car thermal management system for electric automobile power battery, includes: liquid cooling the battery; it is characterized by also comprising: the liquid cooling device, the water pump and the battery water channel of the liquid cooling battery are arranged on the liquid cooling pipeline; the water pump conveys the circulating water heated by the heating device into a battery water channel of the liquid-cooled battery to heat the liquid-cooled battery;
further comprising: a heat exchanger; the liquid cooling pipeline is connected with a whole vehicle air conditioning system of the electric vehicle through the heat exchanger; the whole vehicle air conditioning system shunts part of original cold air to the heat exchanger, and the circulating water in the liquid cooling pipeline is cooled by the heat exchanger, so that the liquid cooling battery is cooled.
2. The vehicle thermal management system applied to the power battery of the electric vehicle as claimed in claim 1, wherein the heating device is a water heater.
3. The vehicle thermal management system applied to the power battery of the electric vehicle as claimed in claim 2, wherein the heat exchanger is a plate heat exchanger.
4. The vehicle thermal management system applied to the power battery of the electric vehicle according to claim 3, further comprising: a water tank; the water tank is arranged on the liquid cooling pipeline.
5. The whole vehicle thermal management system applied to the power battery of the electric vehicle as claimed in claim 4, wherein an air outlet of the heat exchanger is connected with a compressor of the whole vehicle air conditioning system, the compressor is connected with a condenser of the whole vehicle air conditioning system, and an air outlet of the condenser is connected with an air inlet of the plate-type heat exchanger.
6. The vehicle thermal management system applied to the power battery of the electric vehicle as claimed in claim 5, wherein a first valve is arranged on a pipeline connecting an air inlet of the heat exchanger and an air outlet of the condenser.
7. The vehicle thermal management system applied to the power battery of the electric vehicle as claimed in claim 6, wherein a pipeline connecting an air outlet of the heat exchanger and the compressor is communicated with an air outlet of an evaporator of a vehicle air conditioning system; and a pipeline connecting the air outlet of the condenser and the air inlet of the heat exchanger is communicated with the air inlet of the evaporator.
8. The vehicle thermal management system applied to the power battery of the electric vehicle as claimed in claim 7, wherein a second valve is arranged on a pipeline connecting an air outlet of the condenser and an air inlet of the evaporator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020228847.6U CN211654994U (en) | 2020-02-29 | 2020-02-29 | Whole vehicle thermal management system applied to power battery of electric vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020228847.6U CN211654994U (en) | 2020-02-29 | 2020-02-29 | Whole vehicle thermal management system applied to power battery of electric vehicle |
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| Publication Number | Publication Date |
|---|---|
| CN211654994U true CN211654994U (en) | 2020-10-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020228847.6U Active CN211654994U (en) | 2020-02-29 | 2020-02-29 | Whole vehicle thermal management system applied to power battery of electric vehicle |
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| Country | Link |
|---|---|
| CN (1) | CN211654994U (en) |
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2020
- 2020-02-29 CN CN202020228847.6U patent/CN211654994U/en active Active
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Legal Events
| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: No.18, Shaoshan Road, high tech Zone, Xinbei District, Changzhou City, Jiangsu Province 2133133 Patentee after: BAIC heavy truck Co.,Ltd. Address before: No.18, Shaoshan Road, high tech Zone, Xinbei District, Changzhou City, Jiangsu Province 2133133 Patentee before: BAIC (CHANGZHOU) AUTOMOBILE Co.,Ltd. |
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| CP01 | Change in the name or title of a patent holder | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20220425 Address after: 401533 No. 211, Qianyu Road, Tuchang Town, Hechuan District, Chongqing Patentee after: BAIC Ruixiang Automobile Co.,Ltd. Address before: No.18, Shaoshan Road, high tech Zone, Xinbei District, Changzhou City, Jiangsu Province 2133133 Patentee before: BAIC heavy truck Co.,Ltd. |
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| TR01 | Transfer of patent right |