CN111900509A - Battery cooling system - Google Patents
Battery cooling system Download PDFInfo
- Publication number
- CN111900509A CN111900509A CN201910367858.4A CN201910367858A CN111900509A CN 111900509 A CN111900509 A CN 111900509A CN 201910367858 A CN201910367858 A CN 201910367858A CN 111900509 A CN111900509 A CN 111900509A
- Authority
- CN
- China
- Prior art keywords
- plate
- battery
- outlet
- inlet
- temperature
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/61—Types of temperature control
- H01M10/613—Cooling or keeping cold
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/61—Types of temperature control
- H01M10/615—Heating or keeping warm
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/61—Types of temperature control
- H01M10/617—Types of temperature control for achieving uniformity or desired distribution of temperature
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/62—Heating or cooling; Temperature control specially adapted for specific applications
- H01M10/625—Vehicles
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/65—Means for temperature control structurally associated with the cells
- H01M10/656—Means for temperature control structurally associated with the cells characterised by the type of heat-exchange fluid
- H01M10/6567—Liquids
- H01M10/6568—Liquids characterised by flow circuits, e.g. loops, located externally to the cells or cell casings
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/65—Means for temperature control structurally associated with the cells
- H01M10/656—Means for temperature control structurally associated with the cells characterised by the type of heat-exchange fluid
- H01M10/6569—Fluids undergoing a liquid-gas phase change or transition, e.g. evaporation or condensation
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/65—Means for temperature control structurally associated with the cells
- H01M10/657—Means for temperature control structurally associated with the cells by electric or electromagnetic means
- H01M10/6571—Resistive heaters
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Secondary Cells (AREA)
Abstract
The battery cooling system comprises a cooling circulation system and a battery, the cooling circulation system comprises a heat exchange device, the battery cooling system further comprises a temperature equalizing circulation system, the temperature equalizing circulation system comprises a temperature equalizing device and a first pump, the temperature equalizing device is arranged between the battery and the heat exchange device, an inlet of the temperature equalizing device is connected with an outlet of the first pump, an inlet of the first pump is connected with an outlet of the temperature equalizing device, one side of the temperature equalizing device is in direct or indirect contact with the battery, the other side of the temperature equalizing device is in direct or indirect contact with the heat exchange device, when the battery cooling system works, the heat exchange device exchanges heat with the temperature equalizing device, and the temperature equalizing device exchanges heat with the battery. According to the battery cooling system provided by the technical scheme of the invention, the temperature equalizing device is arranged between the heat exchange device and the battery, and the heat exchange device indirectly exchanges heat with the battery through the temperature equalizing device, so that the heat transfer uniformity between the heat exchange device and the battery is improved.
Description
Technical Field
The invention relates to the technical field of thermal management, in particular to a battery cooling system.
Background
Batteries of electric vehicles or hybrid vehicles generate heat during charging and discharging, and generally need to be cooled by a battery cooling system. The cooling system includes a battery cooling device by which the battery is cooled, the cooling device typically being in thermal contact with the battery assembly through a thermally conductive pad. With the development of battery performance, the current battery has a greater demand for temperature uniformity, and how to provide a battery cooling system with higher temperature uniformity is an urgent technical problem to be solved.
Disclosure of Invention
The technical scheme of the invention provides a battery cooling system which comprises a cooling circulation system and a battery, wherein the cooling circulation system comprises a heat exchange device and a temperature equalization circulation system, the temperature equalization circulation system comprises a temperature equalization device and a first pump, the temperature equalization device is arranged between the battery and the heat exchange device, an inlet of the temperature equalization device is connected with an outlet of the first pump, an inlet of the first pump is connected with an outlet of the temperature equalization device, one side of the temperature equalization device is in direct or indirect contact with the battery, the other side of the temperature equalization device is in direct or indirect contact with the heat exchange device, when the battery cooling system works, the heat exchange device exchanges heat with the temperature equalization device, and the temperature equalization device exchanges heat with the battery.
The battery cooling system provided by the technical scheme of the invention comprises a cooling circulation system and a temperature-equalizing circulation system, wherein the temperature circulation system comprises a temperature-equalizing device and a first pump, the temperature-equalizing device is arranged between the heat exchange device and the battery, and the heat exchange device indirectly exchanges heat with the battery through the temperature-equalizing device, so that the heat transfer uniformity between the heat exchange device and the battery is improved, and the temperature uniformity of the battery can be improved.
Drawings
FIG. 1 shows a system diagram of one embodiment of the present invention;
FIG. 2 shows a system diagram of another embodiment of the present invention;
FIG. 3 shows a system diagram of yet another embodiment of the present invention;
FIG. 4 shows a system diagram of yet another embodiment of the present invention;
FIG. 5 is a schematic perspective view of a battery, a heat exchange device and a temperature equalization device according to an embodiment of the present invention;
FIG. 6 is a schematic partial cross-sectional view of the battery, heat exchange device and temperature equalization device of FIG. 5 taken along line A-A;
FIG. 7 shows an exploded view of the battery, heat exchange device and temperature equalization device of FIG. 5;
fig. 8 shows a schematic cross-sectional view of the battery, the heat exchange device and the temperature equalizing device shown in fig. 5 along the line C-C.
Detailed Description
As shown in fig. 1, in one embodiment of the battery cooling system, the battery cooling system includes a cooling circulation system and a battery 5, the cooling circulation system includes a heat exchange device 3, and the battery cooling system further includes a temperature-equalizing circulation system, and the temperature-equalizing circulation system and the cooling circulation system are independent of each other. It should be noted that "independent" means that the internal flow passages are independent and not connected. The temperature-equalizing circulation system comprises a temperature-equalizing device 1 and a first pump 105, an inlet of the temperature-equalizing device 1 is connected with an outlet of the first pump 105, an inlet of the first pump 105 is connected with an outlet of the temperature-equalizing device 1, one side of the temperature-equalizing device 1 is in direct or indirect contact with a battery 5, the other side of the temperature-equalizing device 1 is in direct or indirect contact with a heat exchange device 3, when the temperature-equalizing circulation system works, the heat exchange device 3 and the temperature-equalizing device 1 perform heat exchange, and the temperature-equalizing device and the battery 5 perform heat exchange. The first pump can drive the temperature-equalizing circulation system, at the moment, the fluid in the temperature-equalizing device 1 is in a flowing state, and in the flowing process, the cold part and the hot part of the fluid in the temperature-equalizing device 1 can be mixed, so that the temperature uniformity of the temperature-equalizing device 1 is relatively good. Furthermore, in the first pump 105, the cold and hot portions of the fluid may also be mixed. The fluid in the isothermal circulation system may be a liquid, such as a water-glycol mixture.
No change in the phase state of the fluid is specified in the soaking cycle, but in principle it is possible.
The cooling circulation system further comprises a compressor 106, a condenser 107, an evaporator 109, a second throttling device 103 and a first throttling device 102, wherein an outlet of the compressor is connected with an inlet of the condenser, inlets of the second throttling device 103 and the first throttling device 102 are respectively connected with an outlet of the condenser, an outlet of the second throttling device 103 is connected with an inlet of the evaporator, an outlet of the evaporator 109 is connected with an inlet of the compressor, an outlet of the first throttling device is connected with an inlet of the heat exchange device, and an outlet of the heat exchange device is connected with an inlet of the compressor. In this case, the fluid in the cooling cycle is a refrigerant, for example, R134a, R744, or the like. The refrigerant absorbs heat when passing through the heat exchange device, i.e., indirectly cools the battery 5. It should be noted that "connected" may be directly connected or indirectly connected, that is, other components may be disposed between two connected components, such as a filter, a liquid reservoir, a gas-liquid separator, a solenoid valve, and the like. The evaporator 109 may exchange heat with the cabin 118 to regulate the temperature of the cabin 118.
In another embodiment of the battery cooling system, as shown in fig. 2, the temperature-equalizing circulation system includes at least two temperature-equalizing devices 1. As shown in fig. 6, each temperature equalizing device 1 includes a first plate 13 and a second plate 12, the first plate and the second plate are fixed and the joint is sealed, a first flow channel 16 is formed in the temperature equalizing device 1, the first plate 13 includes a first plate 11, the second plate 12 includes a second plate 19, and the first plate is in direct or indirect contact with the battery 5. The temperature equalizing device 1 further comprises a first interface 14 and a second interface 15, the first interface is communicated with one end of the first flow channel 16, the second interface is communicated with the other end of the first flow channel 16, the first interface of each temperature equalizing device 1 is connected with the outlet of the first pump, and the inlet of the first pump is connected with the second interface of each temperature equalizing device. The number of the heat exchange devices 3 can also be at least two, the cooling circulation system further comprises a compressor, a condenser and at least two first throttling devices 102, outlets of the compressor are connected with inlets of the condenser, inlets of the first throttling devices 102 are respectively connected with outlets of the condenser, outlets of the first throttling devices 102 are connected with inlets of the corresponding heat exchange devices 3, and outlets of the heat exchange devices are respectively connected with inlets of the compressor. The battery cooling system can cool a plurality of batteries 5 at the same time. It should be noted that "connected" may be directly connected or indirectly connected, that is, other components may be disposed between two connected components, such as a filter, a liquid reservoir, a gas-liquid separator, a solenoid valve, and the like.
In another embodiment of the battery cooling system, as shown in fig. 3, the number of the heat exchangers is at least two, the cooling cycle further includes a compressor 106, a condenser 107 and a first throttling device 102, an outlet of the compressor is connected to an inlet of the condenser, inlets of the first throttling device are respectively connected to an outlet of the condenser, an inlet of each heat exchanger is respectively connected to an outlet of the first throttling device, and an outlet of each heat exchanger is respectively connected to an inlet of the compressor. That is, the plurality of branches of the cooling cycle system share the same first throttling device 102, so that the number of throttling devices can be relatively reduced, and the complexity of the system can be reduced. It should be noted that "connected" may be directly connected or indirectly connected, that is, other components may be disposed between two connected components, such as a filter, a liquid reservoir, a gas-liquid separator, a solenoid valve, and the like.
A battery cooling system may be provided in a vehicle to cool the battery while the battery is discharged. The battery cooling system may also be provided in a battery charging station to cool the battery while the battery is being charged.
In a low temperature environment, the battery needs to be heated to a suitable operating temperature. As shown in fig. 4, the temperature equalizing circulation system further comprises an electric heating element 115, and the electric heating element 115 is connected with the inlet of the temperature equalizing device 1. The electric heating element 115 may be an electric heating wire or a PTC heater. When the battery temperature is too low, the electric heating element 115 is powered on, the electric heating element 115 heats the fluid in the temperature-equalizing circulation system, the first pump drives the fluid in the temperature-equalizing circulation system, and the fluid flows to the temperature-equalizing device 1 to heat the battery 5. The electric heating element 115 is connected with the inlet of the temperature equalizing device 1. It should be noted that "connected" may be directly connected or indirectly connected, that is, other components, such as a solenoid valve, a water pump, etc., may be disposed between two connected components. In other embodiments of the battery cooling system, the electrical heating element may also be in direct contact with the battery.
As shown in fig. 5 to 7, in one embodiment of the temperature equalizing device 1, the temperature equalizing device 1 includes a first sheet 13 and a second sheet 12. The first plate and the second plate are fixed and the joint is sealed, a first flow channel 16 is formed in the temperature equalizing device 1, the first plate 13 comprises a first plate surface 11, the second plate 12 comprises a second plate surface 19, and the first plate surface is in direct or indirect contact with the battery 5. Note that the "indirect contact" means that other members, such as a thermal pad, an adhesive material, and the like, may be provided between the battery 5 and the first plate surface 11.
The temperature equalizing device 1 is arranged between the heat exchanging device 3 and the battery 5, the heat exchanging device 3 comprises a third plate 31 and a fourth plate 32, and a second flow channel 36 is formed in the heat exchanging device 3. The heat exchange device 3 further comprises a third interface 34 and a fourth interface 35, the third interface 34 is communicated with one end of the second flow channel 36, the fourth interface is communicated with the other end of the second flow channel, the third plate 31 further comprises a third plate surface 37 corresponding to the second plate surface 19, and the joint of the third plate and the fourth plate is fixed and sealed. Fluid can enter the second flow channel 36 from the third port 34 and then exit from the fourth port 35. The battery assembly also includes a second fin 38, the second fin 38 being disposed in the second flow channel.
As shown in fig. 6, the second plate surface 19 is in direct or indirect contact with the third plate surface 37. The heat exchange device 3 indirectly exchanges heat with the battery 5 through the temperature equalizing device 1, and the temperature equalizing device 1 improves the heat transfer uniformity between the heat exchange device 3 and the battery 5. This is because a first flow channel is provided in a part of the region between the heat exchanger 3 and the battery 5, and the first flow channel contains liquid, and the specific heat of the liquid in the first flow channel is large. The temperature change of the heat exchange device 3 does not immediately affect the first plate surface 11 of the temperature equalizing device 1, so that the temperature change of the third plate surface 37 of the heat exchange device lags behind the first plate surface 11. It should be noted that "indirect contact" means that other components, such as a thermal pad, may be disposed between the second plate surface 19 and the third plate surface 37.
The second flow channel 36 is disposed corresponding to the first flow channel 16, the first flow channel 16 may extend in a direction parallel or substantially parallel to the first plate surface 11, and the second flow channel 36 may also extend in a direction parallel or substantially parallel to the first plate surface 11. The liquid in the first flow passage may exchange heat with the fluid in the second flow passage.
The temperature equalizing device 1 further comprises a first connector 14 and a second connector 15, wherein the first connector is communicated with one end of the first flow channel 16, and the second connector is communicated with the other end of the first flow channel 16. Fluid can enter the first flow passage 16 through the first port 14 and then exit through the second port 15. The temperature equalizing device further comprises a first fin 18, the first fin 18 is arranged in the first flow channel 16, and the first fin can be a flow disturbing fin. The first interface is communicated with an inlet of an external water pump, the second interface is communicated with an outlet of the external water pump, and fluid flowing into the temperature equalizing device 1 can circularly flow between the temperature equalizing device 1 and the external water pump. So that the heat exchange device can exchange heat with the temperature equalizing device, and the temperature equalizing device can exchange heat with the battery. In the flowing process, the cold and hot parts of the fluid in the temperature equalizing device 1 can be mixed, so that the temperature uniformity of the first plate surface 11 of the temperature equalizing device 1 is relatively high. The first fins 18 can play a role in disturbing the fluid, so that the cold and hot fluids can be mixed more sufficiently, and the temperature uniformity of the temperature equalizing device 1 can be further improved.
The battery 5 may include a plurality of battery cells 51,52,53, and the first plate 11 may be in direct or indirect contact with each of the battery cells 51,52,53, which are disposed corresponding to the first flow channel 16, so that temperature uniformity among the battery cells is improved.
The fluid in the first flow path 16 may be a cooling fluid, such as a water-glycol mixture. The fluid in the second flow passage 36 may be a refrigerant, such as R134a, R744, and the like. The temperature of the refrigerant gradually rises as the refrigerant flows through the second flow passage, and the temperature of the refrigerant rises greatly along the second flow passage because the specific heat of the refrigerant is relatively small, while the second flow passage is located within the heat exchange device, resulting in relatively poor temperature uniformity across the third plate surface 37. After the temperature equalizing device is added, the specific heat of the cooling liquid is relatively large, the cooling liquid is in a flowing state, and the temperature uniformity of the first plate surface 11 of the temperature equalizing device is relatively high. Namely, the temperature equalizing device 1 improves the uniformity of heat transfer between the heat exchange device 3 and the battery 5.
As shown in fig. 5, the temperature equalizing device 1 and the heat exchanging device 3 are detachably fixed. Both the second plate surface 19 and the third plate surface 37 may be planar to increase the contact area therebetween. Alternatively, the second plate surface 19 and the third plate surface 37 may have a concave-convex shape, but the second plate surface 19 and the third plate surface 37 are required to have substantially complementary shapes so as to increase the contact area therebetween. The second plate may be made of a high thermal conductivity material, such as metal, silicon gel, etc., which is beneficial for the heat conduction at the second plate surface 19. First slab and second slab can be aluminium or aluminum alloy material, and aluminium or aluminum alloy's heat conductivility is stronger, is favorable to strengthening the heat transfer, and can make battery pack have lighter weight.
In this embodiment, the heat exchanging device 3 may be connected to the vehicle body, and the temperature equalizing device 1 may be fixed to the battery 5 to form a part of a detachable battery pack (as shown by a dotted line in fig. 1), which is detachable from the vehicle body. Furthermore, the battery 5 also generates heat when the removable battery pack is placed in a charging station for charging. The battery 5 can be cooled through the second plate surface 19 at the time of charging.
As shown in fig. 7 and 8, the second plate 12 includes a sixth plate surface 122 disposed on the back surface of the second plate surface 19, the second plate 12 further includes a first flange 123 protruding from the sixth plate surface 122 and a first rib 124, and the first plate 13 is fixed to and sealed at the connection between the first flange 123 and the first rib 124. The first flange 123 surrounds at least the first rib 124, one end of the first rib 124 is connected to one side of the first flange 123, and the other end of the first rib 124 is not connected to the other side of the first flange 123, forming a gap through which fluid can flow. The second plate 12 and the first plate 13 define a first flow channel 16 therebetween. The first rib 124 may divide the first flow channel 16 into a U-shape. The first interface 14 and the second interface 15 are both disposed on one side of the first rib 124 connected to the first flange 123, and the first interface and the second interface are respectively disposed on two sides of the first rib 124. The temperature difference between the inflow end and the outflow end of the fluid in the first flow channel is the largest, so that the heat exchange between the inflow end and the outflow end of the fluid is realized, and the temperature uniformity of the first plate surface 11 can be further improved. Namely, the temperature uniformity of the temperature equalizing device 1 is high. The first plate 13 may be a flat plate, and the heights of the first rib and the first flange protruding from the sixth plate surface 122 may be the same or substantially the same.
In another embodiment of the temperature equalizing device 1, the first plate 13 includes a fifth plate 131 disposed on the back of the first plate 11, the first plate 13 further includes a first flange 123 protruding from the fifth plate 131 and a first rib 124, and the joint of the second plate 12 and the first flange 123 and the first rib 124 is sealed.
In other embodiments of the temperature uniforming device, the temperature uniforming device may be provided with a plurality of first ribs, and the plurality of first ribs may divide the second flow channel into a serpentine shape. The first flow passage may include a plurality of parallel flow passages.
As shown in fig. 7 and 8, the third plate 31 includes a seventh plate surface 312 disposed on the back of the third plate surface 37, the third plate 31 further includes a second flange 313 protruding from the seventh plate surface 312 and a second rib 314, and the connection between the fourth plate 32 and the second flange 313 and the second rib 314 is sealed. The second flange 313 surrounds at least the second rib 314, one end of the second rib 314 is connected with one side of the second flange 313, the other end of the second rib 314 is not connected with the other side of the second flange 313, a gap for fluid to flow through is formed, and a second flow channel 36 is defined between the third plate 31 and the fourth plate 32. The second rib 314 may divide the second flow channel 36 into a U-shape. The third interface 34 and the fourth interface 35 are disposed on one side of the second rib 314 connected to the second flange 313, and are disposed on two sides of the second rib 314 respectively. As shown in fig. 3 and 4, the first rib 124 and the second rib 314 extend in the same or substantially the same direction, and the first interface, the second interface, the third interface, and the fourth interface are disposed on the same side of the battery assembly. The flow directions of the fluids in the first flow channel and the second flow channel are opposite, that is, the first flow channel and the second flow channel are arranged in a counter-flow manner, so that the heat exchange effect between the first flow channel and the second flow channel is relatively good, that is, the heat exchange effect between the temperature equalizing device 1 and the heat exchange device 3 is relatively good. The dot and fork pattern shown in fig. 4 refers to the direction of flow of the fluid, with the fingers going into the page and the dots going out of the page.
It should be noted that: although the present invention has been described in detail with reference to the above embodiments, those skilled in the art will appreciate that various combinations, modifications and equivalents of the present invention can be made by those skilled in the art, and all technical solutions and modifications thereof without departing from the spirit and scope of the present invention are encompassed by the claims of the present invention.
Claims (10)
1. A battery cooling system comprises a cooling circulation system and a battery (5), wherein the cooling circulation system comprises a heat exchange device (3) and is characterized by further comprising a temperature equalizing circulation system, the temperature equalizing circulation system comprises a temperature equalizing device (1) and a first pump (105), the temperature equalizing device (1) is arranged between the battery (5) and the heat exchange device, an inlet of the temperature equalizing device (1) is connected with an outlet of the first pump (105), an inlet of the first pump (105) is connected with an outlet of the temperature equalizing device (1), one side of the temperature equalizing device (1) is in direct or indirect contact with the battery (5), the other side of the temperature equalizing device (1) is in direct or indirect contact with the heat exchange device (3), and when the battery cooling system works, the heat exchange device (3) and the temperature equalizing device (1) exchange heat, the temperature equalizing device exchanges heat with the battery (5).
2. The battery cooling system according to claim 1, wherein the temperature equalization circulation system comprises at least two temperature equalization devices (1), each temperature equalization device (1) comprises a first plate (13) and a second plate (12), the first plate and the second plate are fixed and the joint of the first plate and the second plate is sealed, a first flow channel (16) is formed in the temperature equalization device (1), the first plate (13) comprises a first plate surface (11), the second plate (12) comprises a second plate surface (19), and the first plate surface is in direct or indirect contact with the battery (5); the temperature equalizing device (1) further comprises a first interface (14) and a second interface (15), the first interface is communicated with one end of the first flow channel (16), the second interface is communicated with the other end of the first flow channel (16), the first interface of each temperature equalizing device is connected with an outlet of the first pump, and an inlet of the first pump is connected with the second interface of each temperature equalizing device.
3. The battery cooling system according to claim 1, wherein the cooling circulation system further comprises a compressor (106), a condenser (107), an evaporator (109), a second throttling device (103) and a first throttling device (102), an outlet of the compressor (106) is connected with an inlet of the condenser (107), inlets of the second throttling device (103) and the first throttling device (102) are respectively connected with an outlet of the condenser, an outlet of the second throttling device (103) is connected with an inlet of the evaporator, an outlet of the evaporator (109) is connected with an inlet of the compressor, an outlet of the first throttling device is connected with an inlet of the heat exchanging device, and an outlet of the heat exchanging device is connected with an inlet of the compressor.
4. The battery cooling system according to claim 2, wherein the number of the heat exchanging devices (3) is at least two, the cooling circulation system further comprises a compressor (106), a condenser (107) and at least two first throttling devices (102), an outlet of the compressor is connected with an inlet of the condenser, an inlet of each first throttling device is connected with an outlet of the condenser, an outlet of each first throttling device is connected with an inlet of the corresponding heat exchanging device, and an outlet of each heat exchanging device (3) is connected with an inlet of the compressor.
5. The battery cooling system according to claim 2, wherein the number of the heat exchanging devices (3) is at least two, the cooling cycle further comprises a compressor (106), a condenser (107) and a first throttling device (102), an outlet of the compressor is connected with an inlet of the condenser, inlets of the first throttling device are respectively connected with an outlet of the condenser, an inlet of each heat exchanging device (3) is respectively connected with an outlet of the first throttling device, and an outlet of each heat exchanging device (3) is respectively connected with an inlet of the compressor.
6. The battery cooling system according to claim 1, wherein the cooling circulation system further comprises a compressor (106), a condenser (107), an evaporator (109), a second throttling device (103) and a first throttling device (102), an outlet of the compressor (106) is connected with an inlet of the condenser (107), inlets of the second throttling device (103) and the first throttling device (102) are respectively connected with an outlet of the condenser, an outlet of the second throttling device (103) is connected with an inlet of the evaporator, an outlet of the evaporator (109) is connected with an inlet of the compressor, an outlet of the first throttling device is connected with an inlet of the heat exchanging device, and an outlet of the heat exchanging device is connected with an inlet of the compressor; the temperature-equalizing circulating system further comprises an electric heating element (115), and the electric heating element (115) is connected with an inlet of the temperature-equalizing device (1).
7. The battery cooling system according to claim 1, wherein the temperature equalizing device (1) comprises a first plate (13) and a second plate (12), the first plate (13) and the second plate (12) are fixed and the connection is sealed, a first flow channel (16) is formed in the temperature equalizing device (1), the first plate (13) has a first plate surface (11), and the second plate (12) has a second plate surface (19);
the battery (5) comprises a plurality of battery units (51,52,53), the first plate surface (11) is in direct or indirect contact with each battery unit, each battery unit (51,52,53) corresponds to the first flow channel (16), and the first flow channel (16) extends along a direction parallel or approximately parallel to the first plate surface (11).
8. The battery cooling system according to claim 7, wherein the second plate (12) includes a sixth plate surface (122) provided on the back of the second plate surface (19), the second plate (12) further includes a first flange (123) protruding from the sixth plate surface (122) and a first rib (124), and the first plate (13) is fixed to the first flange (123) and the first rib (124) and sealed at the connection;
or, the first plate (13) comprises a fifth plate surface (131) arranged on the back surface of the first plate surface (11), the first plate (13) further comprises a first flange (123) protruding from the fifth plate surface (131) and a first rib (124), and the second plate (12) is fixed with the first flange (123) and the first rib (124) and the connection part is sealed;
the first flange (123) surrounds at least the first rib (124), one end of the first rib (124) is connected with one side of the first flange (123), the other end of the first rib (124) is not connected with the other side of the first flange (123), and the second plate (12) and the first plate (13) define the first flow channel (16) therebetween;
the first interface (14) and the second interface (15) are close to one side of the first rib (124) connected with the first flange (123), and the first interface and the second interface are respectively arranged on two sides of the first rib (124).
9. The battery cooling system according to claim 7, wherein the temperature equalizing device further comprises a first fin (18), the first fin (18) being disposed in the first flow channel (16), and a thermal pad being disposed between the battery and the temperature equalizing device;
the cooling cycle further comprises a fan, and an outlet of the fan is communicated with an inlet of the heat exchange device (3).
10. The battery cooling system according to claim 7, wherein the heat exchanging device (3) comprises a third plate (31) and a fourth plate (32), the third plate and the fourth plate are fixed and the connection part is sealed, and a second flow channel (36) is formed in the heat exchanging device (3); the heat exchange device (3) further comprises a third interface (34) and a fourth interface (35), the third interface (34) is communicated with one end of the second flow channel (36), the fourth interface is communicated with the other end of the second flow channel (36), the third plate (31) is provided with a third plate surface (37) corresponding to the second plate surface (19), the third plate surface (37) is directly or indirectly contacted with the second plate surface (19), and the temperature equalizing device (1) and the heat exchange device (3) are detachably fixed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910367858.4A CN111900509A (en) | 2019-05-05 | 2019-05-05 | Battery cooling system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910367858.4A CN111900509A (en) | 2019-05-05 | 2019-05-05 | Battery cooling system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111900509A true CN111900509A (en) | 2020-11-06 |
Family
ID=73169159
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910367858.4A Pending CN111900509A (en) | 2019-05-05 | 2019-05-05 | Battery cooling system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111900509A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023006094A1 (en) * | 2021-07-30 | 2023-02-02 | 比亚迪股份有限公司 | Charging system and charging device for battery pack |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN205159462U (en) * | 2015-11-04 | 2016-04-13 | 宁德时代新能源科技股份有限公司 | A cooling plate for liquid cooling of battery package |
| CN105633509A (en) * | 2016-03-17 | 2016-06-01 | 华南理工大学 | Power battery composite heat management system and method thereof |
| CN206441840U (en) * | 2017-01-06 | 2017-08-25 | 四川绿鑫电源有限公司 | A kind of temperature control equipment of battery pack and the battery pack with the device |
| CN107768771A (en) * | 2017-10-17 | 2018-03-06 | 夏文庆 | A kind of power battery thermal management system and method based on bionical calorifics |
| CN108183282A (en) * | 2018-02-07 | 2018-06-19 | 华南理工大学 | A kind of battery modules heat management device based on soaking plate |
| CN208570855U (en) * | 2018-03-13 | 2019-03-01 | 北京微焓科技有限公司 | Battery cooling component and include the battery cooling component electric automobile cooling system |
| CN109599604A (en) * | 2017-09-30 | 2019-04-09 | 比亚迪股份有限公司 | The humidity control system of on-vehicle battery |
| CN109599614A (en) * | 2017-09-30 | 2019-04-09 | 比亚迪股份有限公司 | The temperature control method and humidity control system of on-vehicle battery |
-
2019
- 2019-05-05 CN CN201910367858.4A patent/CN111900509A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN205159462U (en) * | 2015-11-04 | 2016-04-13 | 宁德时代新能源科技股份有限公司 | A cooling plate for liquid cooling of battery package |
| CN105633509A (en) * | 2016-03-17 | 2016-06-01 | 华南理工大学 | Power battery composite heat management system and method thereof |
| CN206441840U (en) * | 2017-01-06 | 2017-08-25 | 四川绿鑫电源有限公司 | A kind of temperature control equipment of battery pack and the battery pack with the device |
| CN109599604A (en) * | 2017-09-30 | 2019-04-09 | 比亚迪股份有限公司 | The humidity control system of on-vehicle battery |
| CN109599614A (en) * | 2017-09-30 | 2019-04-09 | 比亚迪股份有限公司 | The temperature control method and humidity control system of on-vehicle battery |
| CN107768771A (en) * | 2017-10-17 | 2018-03-06 | 夏文庆 | A kind of power battery thermal management system and method based on bionical calorifics |
| CN108183282A (en) * | 2018-02-07 | 2018-06-19 | 华南理工大学 | A kind of battery modules heat management device based on soaking plate |
| CN208570855U (en) * | 2018-03-13 | 2019-03-01 | 北京微焓科技有限公司 | Battery cooling component and include the battery cooling component electric automobile cooling system |
Non-Patent Citations (1)
| Title |
|---|
| 魏莹等主编: "《动力电池管理与维护技术》", 30 January 2019, 江苏大学出版社 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023006094A1 (en) * | 2021-07-30 | 2023-02-02 | 比亚迪股份有限公司 | Charging system and charging device for battery pack |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| KR101798144B1 (en) | Apparatus to manage Battery pack of Electronic Vehicle and Heat Exchange Module | |
| Ma et al. | Experimental study on the performance of vehicle integrated thermal management system for pure electric vehicles | |
| US20190366876A1 (en) | Thermal management systems and heat exchangers for battery thermal modulation | |
| US9592717B2 (en) | Heat exchange system | |
| CN208889811U (en) | Liquid cooling plate and the battery modules for installing it | |
| CN108470959A (en) | A kind of power battery pack heat management assembly | |
| CN104795608B (en) | Battery component | |
| CN209126471U (en) | Pure electric automobile heat management system | |
| CN108466531A (en) | A kind of hybrid electric vehicle crew module humidity control system and hybrid electric vehicle | |
| CN108466532A (en) | A kind of hybrid vehicle temperature control system | |
| CN108550952A (en) | A kind of battery of hybrid vehicle group humidity control system and hybrid electric vehicle | |
| CN108417926B (en) | Power battery pack and electric automobile | |
| CN111900509A (en) | Battery cooling system | |
| WO2024002201A1 (en) | Direct cooling plate, heat exchanger, power battery pack and vehicle | |
| CN110120566A (en) | A kind of power battery cooling system for electronic vehicle and electric car | |
| CN219497891U (en) | Heat exchange module, thermal management system, battery pack and vehicle | |
| CN218021116U (en) | Vehicle coolant integrated system, vehicle thermal management system and vehicle | |
| CN216033622U (en) | Integrated thermal management system and vehicle | |
| CN115649011A (en) | Thermal management system and vehicle | |
| CN111900512B (en) | Battery component | |
| KR20100023600A (en) | Curtain air bag for vehicle | |
| CN111828158A (en) | Cooling system for vehicle and vehicle | |
| CN208460920U (en) | A kind of power battery pack heat management assembly | |
| CN112002925A (en) | Fuel cell automobile management system and control method thereof | |
| CN111600098A (en) | Power battery water-cooling type heat dissipation system of electric automobile |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20201106 |