CN212033189U - Hierarchical formula power battery liquid cooling system - Google Patents
Hierarchical formula power battery liquid cooling system Download PDFInfo
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- CN212033189U CN212033189U CN202021035376.3U CN202021035376U CN212033189U CN 212033189 U CN212033189 U CN 212033189U CN 202021035376 U CN202021035376 U CN 202021035376U CN 212033189 U CN212033189 U CN 212033189U
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- power battery
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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 discloses a hierarchical formula power battery liquid cooling system, it includes power battery group, cooling plate, water pump, radiator, heat exchanger, three solenoid valve one, three solenoid valve two and four solenoid valve. The cooling plate is arranged on one side of the power battery pack. One end of the cooling plate is connected with one end of the water pump through a pipeline, and the other end of the cooling plate is connected with one end of the radiator through a pipeline. The heat exchanger is provided with at least two metal pipes, wherein one end of one metal pipe is connected with the other end of the water pump through a pipeline, and the other end of the metal pipe is connected with the other end of the radiator through a pipeline. The first three-way electromagnetic valve is arranged on a pipeline between the cooling plate and the radiator, the second three-way electromagnetic valve is arranged on a pipeline between the water pump and the heat exchanger, and the four-way electromagnetic valve is arranged on a pipeline between the radiator and the heat exchanger. The four-way electromagnetic valve is respectively connected with the three-way electromagnetic valve I and the three-way electromagnetic valve II through pipelines. The utility model discloses can strengthen power battery's cooling effect, reduce the battery energy consumption.
Description
Technical Field
The utility model relates to a new energy automobile power battery heat dissipation technical field especially relates to a hierarchical formula power battery liquid cooling system.
Background
The power battery is a core component of a new energy automobile, and the temperature of the working environment of the power battery has a great influence on the safety, usability and reliability of the power battery. The power battery can produce a large amount of heats at the course of the work, makes the battery temperature rise, can arouse the thermal runaway problem when the battery temperature rises to certain extent, and power battery can catch fire when serious, even explodes, seriously endangers car and personnel's safety. Therefore, the power battery must be cooled to operate in an optimal temperature range.
The existing liquid cooling system is cooled by a radiator, namely, after flowing out of a cooling plate, cooling liquid flows into the radiator to be cooled and then flows back to the cooling plate to cool a power battery; the heat exchanger cools, namely the cooling liquid absorbs heat from the cooling plate and flows out, and then flows into the heat exchanger to exchange heat with the air conditioning refrigerant, so that the temperature of the cooling liquid is reduced. When the external environment temperature is too high, the cooling capacity of the radiator is insufficient, and a large amount of electric energy is consumed by continuous cooling of the heat exchanger to influence the endurance mileage. The cooling system must be redesigned.
SUMMERY OF THE UTILITY MODEL
To current technical problem, the utility model provides a hierarchical formula power battery liquid cooling system has solved when external environment high temperature radiator cooling capacity not enough, and the heat exchanger cooling that lasts can consume a large amount of electric energy and influence the problem of continuation of the journey mileage.
The utility model discloses a following technical scheme realizes: the utility model provides a hierarchical formula power battery liquid cooling system, it includes:
a power battery pack;
a cooling plate provided at one side of the power battery pack;
one end of the water pump is connected with one end of the cooling plate through a pipeline;
one end of the radiator is connected with the other end of the cooling plate through a pipeline;
the heat exchanger is provided with at least two metal pipes, one end of one metal pipe is connected with the other end of the water pump through a pipeline, and the other end of the metal pipe is connected with the other end of the radiator through a pipeline;
the first three-way electromagnetic valve is arranged on a pipeline between the cooling plate and the radiator and is respectively connected with the cooling plate and the radiator in series;
the three-way electromagnetic valve II is arranged on a pipeline between the water pump and the heat exchanger and is respectively connected with the water pump and the heat exchanger in series; and
the four-way electromagnetic valve is arranged on a pipeline between the radiator and the heat exchanger and is respectively connected with the radiator and the heat exchanger in series; the four-way electromagnetic valve is also respectively connected with the three-way electromagnetic valve I and the three-way electromagnetic valve II through pipelines; the pipeline of the four-way electromagnetic valve connected with the three-way electromagnetic valve I is connected with the pipeline where the radiator is located in parallel; the pipeline of the four-way electromagnetic valve connected with the three-way electromagnetic valve II is connected with the pipeline where the heat exchanger is arranged in parallel;
the cooling plate, the three-way electromagnetic valve I, the radiator, the four-way electromagnetic valve, the three-way electromagnetic valve II and the water pump are sequentially connected through a pipeline to form a primary cooling loop; the cooling plate, the three-way electromagnetic valve I, the four-way electromagnetic valve, the heat exchanger, the three-way electromagnetic valve II and the water pump are sequentially connected through pipelines to form a secondary cooling loop; the cooling plate, the three-way electromagnetic valve I, the radiator, the four-way electromagnetic valve, the heat exchanger, the three-way electromagnetic valve II and the water pump are sequentially connected through pipelines to form a three-stage cooling loop.
Further, hierarchical formula power battery liquid cooling system still includes:
and the temperature sensor is mounted on the shell of the power battery pack.
Further, hierarchical formula power battery liquid cooling system still includes:
and the first expansion valve is connected with the other metal pipe of the heat exchanger through a pipeline.
Still further, hierarchical formula power battery liquid cooling system still includes:
and the condenser is connected with the first expansion valve through a pipeline.
Still further, hierarchical formula power battery liquid cooling system still includes:
and the compressor is connected with the condenser through a pipeline.
Still further, hierarchical formula power battery liquid cooling system still includes:
and the drying tank is arranged adjacent to the compressor and is connected with the compressor through a pipeline.
Still further, hierarchical formula power battery liquid cooling system still includes:
and the second expansion valve is connected with the condenser through a pipeline.
Still further, hierarchical formula power battery liquid cooling system still includes:
and the evaporator is positioned between the second expansion valve and the drying tank and is respectively connected with the second expansion valve and the drying tank through pipelines.
And furthermore, the expansion valve I, the condenser, the compressor, the drying tank and the heat exchanger are sequentially connected through pipelines to form a power battery refrigeration loop.
And furthermore, the compressor, the condenser, the second expansion valve, the evaporator and the drying tank are sequentially connected through pipelines to form a passenger compartment refrigerating circuit.
The utility model provides a pair of hierarchical formula power battery liquid cooling system, each structure loops through the pipe connection and can constitute multistage closed circuit. The cooling plate, the three-way electromagnetic valve I, the radiator, the four-way electromagnetic valve, the heat exchanger, the three-way electromagnetic valve II and the water pump can form three different pipelines, and the system can select a proper cooling mode according to the temperature change of the power battery by providing a first-stage cooling loop, a second-stage cooling loop and a third-stage cooling loop. The temperature of the power battery pack can be monitored in real time by adding the temperature sensor. The compressor, the condenser, the expansion valve II, the evaporator and the drying tank are sequentially connected through pipelines to form a cooling loop which is a passenger compartment refrigerating loop. And the compressor, the condenser, the first expansion valve, the drying tank and the heat exchanger are sequentially connected through pipelines to form a cooling loop which is a power battery refrigeration loop. The utility model discloses a multistage cooling circuit can strengthen power battery's cooling effect, reduces the battery energy consumption, increases the continuation of the journey mileage.
Drawings
Fig. 1 is a structural diagram of a hierarchical liquid cooling system according to embodiment 1 of the present invention;
FIG. 2 is a view of the primary cooling structure of the staged liquid cooling system of FIG. 1
FIG. 3 is a diagram of a secondary cooling configuration of the staged liquid cooling system of FIG. 1;
FIG. 4 is a three-stage cooling block diagram of the staged liquid cooling system of FIG. 1;
fig. 5 is a structural diagram of the hierarchical liquid cooling system according to embodiment 2 of the present invention;
description of the symbols:
1. a compressor; 2. a condenser; 3. a first expansion valve; 4. a second expansion valve; 5. an evaporator; 6. a drying tank; 7. a heat exchanger; 8. a four-way solenoid valve; 9. a heat sink; 10. a three-way electromagnetic valve I; 11. a temperature sensor; 12. a power battery pack; 13. a cooling plate; 14. a water pump; 15. three-way electromagnetic valve II
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention.
Example 1
Referring to fig. 1, the present embodiment provides a hierarchical power battery liquid cooling system, which includes a compressor 1, a condenser 2, a first expansion valve 3, a drying tank 6, a heat exchanger 7, a four-way solenoid valve 8, a radiator 9, a first three-way solenoid valve 10, a temperature sensor 11, a power battery pack 12, a cooling plate 13, a water pump 14, and a second three-way solenoid valve 15.
The cooling plate 13 is provided on one side of the power battery pack 12. In the present embodiment, the cooling liquid absorbs the heat generated by the power battery pack 12 when passing through the cooling plate 13, and then flows to the next stage, and the flow of the cooling liquid is continued all the time, so that the temperature of the power battery pack 12 can be maintained within a certain range all the time, and the loss of battery energy is reduced.
One end of the water pump 14 is connected to one end of the cooling plate 13 through a pipe, and one end of the radiator 9 is connected to the other end of the cooling plate 13 through a pipe. The heat exchanger 7 has at least two metal pipes, one of which has one end connected to the other end of the water pump 14 through a pipe and the other end connected to the other end of the radiator 9 through a pipe. In the present embodiment, the water pump 14, the cooling plate 13, the heat exchanger 7, and the radiator 9 can constitute one closed cooling circuit. The cooling liquid flows through the cooling plate 13 from the water pump 14 to take away the heat of the power battery pack 12, then the cooling liquid is subjected to heat dissipation through the radiator 9, and the heat is further transferred through the heat exchanger 7, so that the purpose of cooling the power battery pack 12 is achieved by circulating and reciprocating.
The three-way electromagnetic valve I10 is arranged on a pipeline between the cooling plate 13 and the radiator 9 and is respectively connected with the cooling plate 13 and the radiator 9 in series through pipelines. The three-way electromagnetic valve II 15 is arranged on a pipeline between the water pump 14 and the heat exchanger 7 and is respectively connected with the water pump 14 and the heat exchanger 7 in series through pipelines. The four-way electromagnetic valve 8 is arranged on a pipeline between the radiator 9 and the heat exchanger 7 and is respectively connected with the radiator 9 and the heat exchanger 7 in series through pipelines, and the four-way electromagnetic valve 8 is also respectively connected with the first three-way electromagnetic valve 10 and the second three-way electromagnetic valve 15 through pipelines. Moreover, a pipeline of the four-way electromagnetic valve 8 connected with the three-way electromagnetic valve I10 is connected with a pipeline of the radiator 9 in parallel; and a pipeline of the four-way electromagnetic valve 8 connected with the three-way electromagnetic valve II 15 is connected with a pipeline of the heat exchanger 7 in parallel.
Referring to fig. 2, 3 and 4, in the present embodiment, the cooling plate 13, the three-way solenoid valve one 10, the radiator 9, the four-way solenoid valve 8, the three-way solenoid valve two 15 and the water pump 14 are sequentially connected through a pipeline to form a primary cooling loop; the cooling plate 13, the three-way electromagnetic valve I10, the four-way electromagnetic valve 8, the heat exchanger 7, the three-way electromagnetic valve II 15 and the water pump 14 are sequentially connected through pipelines to form a secondary cooling loop; the cooling plate 13, the first three-way electromagnetic valve 10, the radiator 9, the four-way electromagnetic valve 8, the heat exchanger 7, the second three-way electromagnetic valve 15 and the water pump 14 are sequentially connected through pipelines to form a three-stage cooling loop. Because the flow of the cooling liquid can be selected in more directions due to the multi-directionality of the three-way electromagnetic valve and the four-way electromagnetic valve, the three-stage cooling circuit is provided in the embodiment, which one of the cooling circuits can be selected adaptively according to different conditions, and the power battery pack 12 is preferentially cooled by heat dissipation, so that the cooling effect of the power battery is enhanced, the energy consumption of the battery is reduced, and the endurance mileage is increased.
The temperature sensor 11 is mounted on the housing of the power battery pack 12. In the present embodiment, the temperature sensor 11 is used for monitoring the temperature of the power battery pack 12 in real time, and in cooperation with the multi-stage cooling circuit of the present embodiment, the system can select a suitable cooling mode according to the temperature change of the power battery pack 12.
The first expansion valve 3 is connected with the other metal pipe of the heat exchanger 7 through a pipeline, the condenser 2 is connected with the first expansion valve 3 through a pipeline, the compressor 1 is connected with the condenser 2 through a pipeline, and the drying tank 6 is arranged at the adjacent position of the compressor 1 and is connected with the compressor 1 through a pipeline. In the present embodiment, the expansion valve one 3, the condenser 2, the compressor 1, and the drying tank 6 are connected in sequence by pipes to form a closed cooling circuit. The cooling loop is a power battery refrigeration loop, an expansion valve I3 in the loop enables a medium-temperature high-pressure liquid refrigerant to be throttled into low-temperature low-pressure wet steam, then the refrigerant absorbs heat in an evaporator to achieve a refrigeration effect, the heat exchanger has the function of enabling the heat to be transferred from a fluid with higher temperature to a fluid with lower temperature, the temperature of the fluid reaches an index specified by a flow, and the energy utilization rate can be effectively improved. The coolant reaches the heat exchanger 7 after passing through the cooling plate 13 and the radiator 9, where the coolant also has a certain amount of heat. The heat exchanger has a heat transfer function, and in the loop with the expansion valve I3, due to the functions of the condenser 2 and the expansion valve I3, the high temperature of the cooling liquid is transferred to the other low-temperature metal pipe of the heat exchanger 7, so that the heat of the cooling liquid passing through the heat exchanger 7 is greatly reduced, and then the cooling liquid reaches the cooling plate 13 through the water pump 14 to continuously cool the power battery pack 12, and finally the temperature of the power battery pack 12 is controlled within a certain proper range.
To sum up, the utility model provides a hierarchical formula power battery liquid cooling system, this liquid cooling system have multistage cooling circuit in one side of power battery group 12, cooperate temperature sensor 11 for this system has the function of selecting suitable cooling methods according to the temperature variation of power battery group 12. The multi-stage cooling circuit can preferentially select the cooling circuit to cool the power battery pack 12. And the expansion valve I3, the condenser 2, the compressor 1 and the drying tank 6 are sequentially connected through pipelines to form a closed cooling loop, so that the cooling effect of the liquid cooling system on the power battery pack 12 is further enhanced, the energy consumption of the battery is further reduced, and the endurance mileage is increased.
Example 2
Referring to fig. 5, the present embodiment provides a staged power battery liquid cooling system, which is similar to the liquid cooling system of embodiment 1, except that an expansion valve two 4 and an evaporator 5 are added to the liquid cooling system of the present embodiment.
The second expansion valve 4 is connected with the condenser 2 through a pipeline, and the evaporator 5 is positioned between the second expansion valve 4 and the drying tank 6 and is respectively connected with the second expansion valve 4 and the drying tank 6 through pipelines. In the present embodiment, the compressor 1, the condenser 2, the second expansion valve 4, the evaporator 5, and the drying tank 6 are connected in sequence by pipes to form a closed cooling circuit, which is a passenger compartment refrigeration circuit. Besides cooling and radiating the power battery pack 12, the passenger compartment is also cooled, so that the electric automobile provided with the liquid cooling system is more comfortable to use.
The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.
Claims (10)
1. The utility model provides a hierarchical power battery liquid cooling system, its includes power battery group (12), its characterized in that, it includes:
a cooling plate (13) provided on one side of the power battery pack (12);
a water pump (14) having one end connected to one end of the cooling plate (13) through a pipe;
a radiator (9) having one end connected to the other end of the cooling plate (13) via a pipe;
the heat exchanger (7) is provided with at least two metal pipes, one end of one metal pipe is connected with the other end of the water pump (14) through a pipeline, and the other end of the metal pipe is connected with the other end of the radiator (9) through a pipeline;
the three-way electromagnetic valve I (10) is arranged on a pipeline between the cooling plate (13) and the radiator (9) and is respectively connected with the cooling plate (13) and the radiator (9) in series;
the three-way electromagnetic valve II (15) is arranged on a pipeline between the water pump (14) and the heat exchanger (7) and is respectively connected with the water pump (14) and the heat exchanger (7) in series; and
the four-way electromagnetic valve (8) is arranged on a pipeline between the radiator (9) and the heat exchanger (7) and is respectively connected with the radiator (9) and the heat exchanger (7) in series; the four-way electromagnetic valve (8) is also respectively connected with a three-way electromagnetic valve I (10) and a three-way electromagnetic valve II (15) through pipelines; wherein, the pipeline of the four-way electromagnetic valve (8) connected with the three-way electromagnetic valve I (10) is connected with the pipeline of the radiator (9) in parallel; a pipeline connected with the four-way electromagnetic valve (8) and the three-way electromagnetic valve II (15) is connected with a pipeline where the heat exchanger (7) is arranged in parallel;
the cooling plate (13), the three-way electromagnetic valve I (10), the radiator (9), the four-way electromagnetic valve (8), the three-way electromagnetic valve II (15) and the water pump (14) are sequentially connected through pipelines to form a primary cooling loop; the cooling plate (13), the three-way electromagnetic valve I (10), the four-way electromagnetic valve (8), the heat exchanger (7), the three-way electromagnetic valve II (15) and the water pump (14) are sequentially connected through pipelines to form a secondary cooling loop; the cooling plate (13), the three-way solenoid valve I (10), the radiator (9), the four-way solenoid valve (8), the heat exchanger (7), the three-way solenoid valve II (15) and the water pump (14) are sequentially connected through pipelines to form a three-stage cooling loop.
2. The staged power battery liquid cooling system of claim 1, wherein the staged power battery liquid cooling system further comprises:
and the temperature sensor (11) is mounted on the shell of the power battery pack (12).
3. The staged power battery liquid cooling system of claim 1, wherein the staged power battery liquid cooling system further comprises:
and the first expansion valve (3) is connected with the other metal pipe of the heat exchanger (7) through a pipeline.
4. The staged power battery liquid cooling system of claim 3, wherein the staged power battery liquid cooling system further comprises:
and the condenser (2) is connected with the first expansion valve (3) through a pipeline.
5. The staged power battery liquid cooling system of claim 4, wherein the staged power battery liquid cooling system further comprises:
and the compressor (1) is connected with the condenser (2) through a pipeline.
6. The staged power battery liquid cooling system of claim 5, wherein the staged power battery liquid cooling system further comprises:
and the drying tank (6) is arranged at the adjacent position of the compressor (1) and is connected with the compressor (1) through a pipeline.
7. The staged power battery liquid cooling system of claim 6, wherein the staged power battery liquid cooling system further comprises:
and the second expansion valve (4) is connected with the condenser (2) through a pipeline.
8. The staged power battery liquid cooling system of claim 7, wherein the staged power battery liquid cooling system further comprises:
and the evaporator (5) is positioned between the second expansion valve (4) and the drying tank (6) and is respectively connected with the second expansion valve (4) and the drying tank (6) through pipelines.
9. The staged power battery liquid cooling system as claimed in claim 6, wherein the expansion valve I (3), the condenser (2), the compressor (1), the drying tank (6) and the heat exchanger (7) are connected in sequence through pipelines to form a power battery refrigeration loop.
10. The staged power battery liquid cooling system as claimed in claim 8, wherein the compressor (1), the condenser (2), the second expansion valve (4), the evaporator (5) and the drying tank (6) are connected in sequence by pipes to form a passenger compartment refrigeration circuit.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202021035376.3U CN212033189U (en) | 2020-06-08 | 2020-06-08 | Hierarchical formula power battery liquid cooling system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202021035376.3U CN212033189U (en) | 2020-06-08 | 2020-06-08 | Hierarchical formula power battery liquid cooling system |
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| CN212033189U true CN212033189U (en) | 2020-11-27 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114497800A (en) * | 2021-12-24 | 2022-05-13 | 广州高澜节能技术股份有限公司 | Multi-stage cooling system applied to energy storage power station and control method |
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2020
- 2020-06-08 CN CN202021035376.3U patent/CN212033189U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114497800A (en) * | 2021-12-24 | 2022-05-13 | 广州高澜节能技术股份有限公司 | Multi-stage cooling system applied to energy storage power station and control method |
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