CN106532192B - Distributed thermal management system and battery - Google Patents
Distributed thermal management system and battery Download PDFInfo
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- CN106532192B CN106532192B CN201710035484.7A CN201710035484A CN106532192B CN 106532192 B CN106532192 B CN 106532192B CN 201710035484 A CN201710035484 A CN 201710035484A CN 106532192 B CN106532192 B CN 106532192B
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- 238000012546 transfer Methods 0.000 claims abstract description 73
- 239000007788 liquid Substances 0.000 claims description 128
- 238000010438 heat treatment Methods 0.000 claims description 22
- 238000001816 cooling Methods 0.000 claims description 17
- 239000004065 semiconductor Substances 0.000 claims description 15
- 238000005485 electric heating Methods 0.000 claims description 10
- 230000000712 assembly Effects 0.000 claims description 9
- 238000000429 assembly Methods 0.000 claims description 9
- 230000017525 heat dissipation Effects 0.000 claims description 5
- 238000010586 diagram Methods 0.000 description 9
- 238000012806 monitoring device Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 4
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000003303 reheating Methods 0.000 description 2
- 230000001133 acceleration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000004146 energy storage Methods 0.000 description 1
- 230000020169 heat generation Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
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- 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
- H01M10/655—Solid structures for heat exchange or heat conduction
- H01M10/6554—Rods or plates
- H01M10/6555—Rods or plates arranged between the cells
-
- 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
- H01M10/655—Solid structures for heat exchange or heat conduction
- H01M10/6556—Solid parts with flow channel passages or pipes for heat exchange
- H01M10/6557—Solid parts with flow channel passages or pipes for heat exchange arranged between the cells
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- 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
-
- 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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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Secondary Cells (AREA)
Abstract
The invention provides a distributed thermal management system and a battery, wherein the battery comprises a plurality of battery modules, the distributed thermal management system comprises a plurality of thermal management devices, and the thermal management devices comprise: a heat transfer assembly disposed between adjacent two battery modules; and the heat control component is connected with the heat transfer component and used for controlling the heat transfer component to heat or cool. By arranging a plurality of heat management devices, each heat management device comprises a heat transfer assembly arranged between two adjacent battery modules and a heat control assembly connected with the heat transfer assembly. And the heat control assembly controls the heat transfer assembly to heat or cool so as to control the temperature of two adjacent battery modules. Therefore, the centralized temperature control in the prior art is replaced by the distributed thermal management system, so that the battery modules with different temperatures can be controlled more accurately.
Description
Technical Field
The invention relates to the technical field of battery thermal management, in particular to a distributed thermal management system and a battery.
Background
The battery module is used as a main energy storage element on the electric automobile, is a key component of the electric automobile and directly affects the performance of the electric automobile. When the vehicle runs under different running conditions of high speed, low speed, acceleration, deceleration and the like, the battery module discharges at different multiplying powers, and generates a large amount of heat at different heat generation rates, so that the heat distribution is uneven. At this time, the temperature of the battery modules needs to be controlled by the thermal management system, so that the temperatures of the battery modules are basically consistent, and the reduction of the service lives of the battery modules caused by different discharge states of the battery modules due to uneven temperatures is prevented.
In the thermal management system of the prior art, the temperature of the heat transfer assembly between the battery modules is controlled by a uniform heat source or heat sink. When the quantity of battery module is great, unified control can't accomplish each battery module temperature of accurate management and control, and temperature control effect is not good.
Disclosure of Invention
In order to overcome the above-mentioned drawbacks of the prior art, an object of the present invention is to provide a distributed thermal management system, which is applied to a battery module, and which includes a plurality of thermal management devices including:
A heat transfer assembly disposed between adjacent two battery modules;
And the heat control component is connected with the heat transfer component and used for controlling the heat transfer component to heat or cool.
Further, in the distributed thermal management system, the heat transfer assembly includes a hollow heat conducting plate and a liquid conduit arranged in the hollow heat conducting plate in a roundabout manner, and a liquid inlet and a liquid outlet of the liquid conduit are respectively connected with the heat control assembly.
Further, in the distributed thermal management system, the heat transfer assembly includes a hollow heat-conducting plate, and a plurality of liquid baffles are disposed in the hollow heat-conducting plate, the liquid baffles divide the inner cavity of the hollow heat-conducting plate into a plurality of liquid channels, and the plurality of liquid channels make liquid flow around the inner cavity of the hollow heat-conducting plate; the liquid inlet and the liquid outlet of the hollow heat-conducting plate are respectively connected with the heat control component.
Further, in the distributed thermal management system, the thermal management device further includes:
The temperature acquisition assembly is arranged on the battery module, acquires the temperature of the battery module and sends the acquired temperature to the heat control assembly, so that the heat control assembly can control the heat transfer assembly to raise or lower the temperature according to the temperature of the battery module.
Further, in the above distributed thermal management system, the thermal management device located between two adjacent battery modules includes at least two temperature acquisition assemblies, and the two temperature acquisition assemblies respectively acquire temperatures of the two adjacent battery modules and send the temperatures to the thermal control assembly, so that the thermal control assembly controls the thermal transfer assembly to raise or lower the temperature according to the obtained average temperature value of the two battery modules.
Further, in the distributed thermal management system described above, the thermal control assembly includes:
An electric heating unit for heating the liquid in the liquid conduit;
A heat radiating unit for cooling the liquid in the liquid conduit; and
And the control unit is used for selecting to heat or cool the heat transfer assembly according to the obtained temperature of the battery module, and is respectively connected with the electric heating unit and the heat dissipation unit.
Further, in the distributed thermal management system described above, the thermal control assembly includes:
a semiconductor heating and refrigerating unit for heating or cooling the liquid in the liquid conduit according to the current flow direction; and
And the control unit is connected with the semiconductor heating and refrigerating unit and used for controlling the current flow direction of the semiconductor heating and refrigerating unit according to the obtained temperature of the battery module.
Another object of the present invention is to provide a distributed thermal management system applied to a battery module, the battery module including a plurality of battery cells, the distributed thermal management system including a plurality of thermal management devices, the thermal management devices including:
a heat transfer assembly disposed in the battery module to be in contact with the plurality of battery cells;
And the heat control component is connected with the heat transfer component and used for controlling the heat transfer component to heat or cool.
Further, in the distributed thermal management system, the heat transfer assembly includes a liquid flat tube that is disposed in the battery module and contacts with the plurality of battery cells, and a liquid inlet and a liquid outlet of the liquid flat tube are respectively connected with the thermal control assembly.
Another object of the present invention is to provide a battery, which includes a plurality of battery modules and the distributed thermal management system provided by the present invention. Compared with the prior art, the invention has the following beneficial effects:
According to the distributed thermal management system and the battery, the plurality of thermal management devices are arranged, and each thermal management device comprises a heat transfer assembly arranged between two adjacent battery modules and a heat control assembly connected with the heat transfer assembly. And the heat control assembly controls the heat transfer assembly to heat or cool so as to control the temperature of two adjacent battery modules. Therefore, the centralized temperature control in the prior art is replaced by the distributed thermal management system, so that the battery modules with different temperatures can be more accurately controlled.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram of a distributed thermal management system according to a first embodiment of the present invention;
FIG. 2 is a schematic view of one implementation of a heat transfer assembly provided by a first embodiment of the present invention;
FIG. 3 is a schematic view of another implementation of a heat transfer assembly provided by the first embodiment of the present invention;
FIG. 4 is a schematic diagram of a temperature acquisition assembly according to a first embodiment of the present invention;
FIG. 5 is a schematic diagram of an embodiment of a thermal control assembly according to a first embodiment of the present invention;
FIG. 6 is a schematic diagram of another embodiment of a thermal control assembly provided by the first embodiment of the present invention;
Fig. 7 is a schematic diagram of a centralized monitoring apparatus according to a first embodiment of the present invention;
FIG. 8 is a schematic diagram of a distributed thermal management system according to a second embodiment of the present invention;
Fig. 9 is a schematic view of a heat transfer assembly provided in a second embodiment of the present invention.
Icon: 10-a distributed thermal management system; 100-thermal management device; 110-a heat transfer assembly; 111-a hollow heat-conducting plate; 112-a liquid conduit; 1121 (1141, 1151) -a liquid inlet; 1122 (1142, 1152) -a liquid outlet; 113-a liquid separator; 114-a liquid channel; 115-a flat liquid tube; 120-a thermal control assembly; 121-a control unit; 122-an electric heating unit; 123-a heat dissipation unit; 124-a semiconductor heating and refrigerating unit; 130-a temperature acquisition assembly; 200-centralized monitoring device; 20-a battery module; 201-battery cell.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are some embodiments of the present invention, but not all embodiments of the present invention. The components of the embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the invention, as presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures.
In the description of the present invention, it should be noted that, directions or positional relationships indicated by terms such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., are directions or positional relationships based on those shown in the drawings, or are directions or positional relationships conventionally put in use of the inventive product, are merely for convenience of describing the present invention and simplifying the description, and are not indicative or implying that the apparatus or element to be referred to must have a specific direction, be constructed and operated in a specific direction, and thus should not be construed as limiting the present invention.
In the description of the present invention, it should also be noted that, unless explicitly specified and limited otherwise, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.
First embodiment
Referring to fig. 1, fig. 1 is a schematic diagram of a distributed thermal management system 10 according to the present embodiment, which is applied to a battery module 20, wherein the distributed thermal management system 10 includes a plurality of thermal management devices 100, and each of the thermal management devices 100 independently works to control the temperature of two adjacent battery modules 20. The thermal management device 100 includes a heat transfer component 110 and a thermal control component 120.
The heat transfer assembly 110 is disposed between the adjacent two battery modules 20.
The heat control assembly 120 is connected to the heat transfer assembly 110, and the heat control assembly 120 controls the heat transfer assembly 110 to raise or lower temperature.
Specifically, in the present embodiment, the heat transfer assembly 110 performs temperature transfer by a thermally conductive liquid flowing therein. In this embodiment, the heat conductive liquid may be water.
Referring to fig. 2, in one implementation of the present embodiment, the heat transfer assembly 110 includes a hollow heat conducting plate 111 and a liquid conduit 112 disposed in the hollow heat conducting plate 111 in a detour manner. The hollow heat-conducting plate 111 is attached to two adjacent battery modules 20 to absorb heat from the battery modules 20 or transfer heat to the battery modules 20.
The liquid conduit 112 includes a liquid inlet 1121 and a liquid outlet 1122, and the liquid inlet 1121 and the liquid outlet 1122 are respectively connected to the thermal control assembly 120. After being heated or cooled by the thermal control assembly 120, the heat-conducting liquid is injected into the liquid conduit 112 through the liquid inlet 1121, flows through the liquid conduit 112, and transfers the temperature to the hollow heat-conducting plate 111. The heat-conducting liquid flows back from the liquid outlet 1122 to the thermal control assembly 120 for reheating or cooling.
It should be noted that, in the present embodiment, fig. 2 is only a schematic diagram of the arrangement of the liquid conduits 112 according to the present embodiment, the number and the detouring manner of the liquid conduits 112 are not limited to the number and the detouring manner shown in fig. 2, and a plurality of liquid conduits 112 and different detouring manners may be arranged. When the plurality of liquid conduits 112 are provided, the liquid inlets 1121 and the liquid outlets 1122 of the plurality of liquid conduits 112 may be provided at different positions, so that the heat-conducting liquid flows in different liquid conduits 112 are different, and the effect of further equalizing the temperature is achieved.
Referring to fig. 3, in another implementation manner of the present embodiment, the heat transfer assembly 110 includes a hollow heat-conducting plate 111, a plurality of liquid separators 113 are disposed in the hollow heat-conducting plate 111, the liquid separators 113 divide the inner cavity of the hollow heat-conducting plate 111 into a plurality of liquid channels 114, and the plurality of liquid channels 114 make the liquid flow around the inner cavity of the hollow heat-conducting plate 111. The hollow heat-conducting plate 111 is attached to two adjacent battery modules 20 to absorb heat from the battery modules 20 or transfer heat to the battery modules 20.
The liquid channel 114 includes a liquid inlet 1141 and a liquid outlet 1142, and the liquid inlet 1141 and the liquid outlet 1142 are respectively connected to the thermal control assembly 120. After being heated or cooled by the thermal control assembly 120, the heat-conducting liquid is injected into the liquid channel 114 through the liquid inlet 1141, flows through the liquid channel 114, and transfers the temperature to the hollow heat-conducting plate 111. The heat-conducting liquid flows back from the liquid outlet 1142 to the thermal control assembly 120 for reheating or cooling.
It should be noted that, in the present embodiment, fig. 3 is only a schematic diagram of the arrangement of the liquid channels 114 in the present embodiment, and the number and the detouring manner of the liquid channels 114 are not limited to the number and the detouring manner shown in fig. 3, and a plurality of liquid channels 114 and different detouring manners may be arranged. When a plurality of liquid channels 114 are provided, the liquid inlets 1141 and the liquid outlets 1142 of the liquid channels 114 may be disposed at different positions, so that the heat-conducting liquid flows in different liquid channels 114 are different, and the effect of further equalizing the temperature is achieved.
Thus, when the temperature of the battery module 20 is too high, the heat transfer assembly 110 absorbs the heat of the battery module 20 and takes away the heat through the heat conducting liquid, so as to achieve the cooling effect of the battery module 20. When the temperature of the battery module 20 is too low, the heat transfer assembly 110 transfers heat generated by the heat conductive liquid to the battery module 20, so as to heat the battery module 20.
Further, the thermal management device 100 also includes a temperature acquisition assembly 130.
The temperature collection assembly 130 is disposed on the battery module 20, and the temperature collection assembly 130 collects the temperature of the battery module 20 and sends the collected temperature to the thermal control assembly 120, so that the thermal control assembly 120 controls the heat transfer assembly 110 to raise or lower the temperature according to the temperature of the battery module 20. In this embodiment, the temperature acquisition component 130 may include, but is not limited to, a thermocouple, a thermal resistor, or the like.
Further, referring to fig. 4, since one thermal management device 100 acts on two adjacent battery modules 20, in this embodiment, the thermal management device 100 between two adjacent battery modules 20 includes at least two temperature acquisition assemblies 130.
The two temperature collection assemblies 130 are respectively disposed on two adjacent battery modules 20, and are configured to collect temperatures of two adjacent battery modules 20 and send the temperatures to the thermal control assembly 120, so that the thermal control assembly 120 controls the heat transfer assembly 110 to raise or lower the temperature according to an average value of the temperatures of the two obtained battery modules 20.
Referring to fig. 4 again, in the present embodiment, the thermal management device 100 located at one side of the single battery module 20 includes at least one temperature acquisition component 130, and only the temperature of one battery module 20 is acquired as the basis of temperature control.
In this way, the temperature of each battery module 20 is collected by the plurality of thermal management devices 100 as a basis for temperature control, so that the temperature of the battery modules 20 with different temperatures can be controlled more accurately.
In this embodiment, the thermal control component 120 heats or cools the heat-conducting liquid in the heat transfer component 110 according to the temperature information collected by the temperature collection component 130.
Specifically, when the thermal control component 120 receives that the battery temperature acquired by the temperature acquisition component 130 is higher than a first temperature threshold, a cooling treatment is performed on the battery module 20; when the thermal control component 120 receives that the battery temperature acquired by the temperature acquisition component 130 is lower than a second temperature threshold, a temperature raising process is performed on the battery module 20. Wherein the first temperature threshold is higher than the second temperature threshold.
Referring to fig. 5, in one implementation of the present embodiment, the thermal control assembly 120 includes an electric heating unit 122, a heat dissipation unit 123, and a control unit 121.
The control unit 121 is connected with the temperature acquisition assembly 130, the temperature control unit 121 is used for selectively heating or cooling the heat transfer assembly 110 according to the obtained temperature of the battery module 20, and the control unit 121 is respectively connected with the electric heating unit 122 and the heat dissipation unit 123.
The electric heating unit 122 is used for heating the liquid in the liquid conduit 112, and the electric heating unit 122 may include an electric heating wire. The heat dissipating unit 123 is a heat dissipating unit 123 for cooling the liquid in the liquid conduit 112.
Referring to fig. 6, in another implementation of the present embodiment, the thermal control assembly 120 includes a control unit 121 and a semiconductor heating and cooling unit 124.
The semiconductor heating/cooling unit 124 is connected to the control unit 121, and is configured to heat or cool the liquid in the liquid conduit 112 according to the current flow direction generated by the control unit 121.
The control unit 121 is connected to the temperature acquisition assembly 130, and the temperature control unit 121 is configured to control the current flow direction of the semiconductor heating and cooling unit 124 according to the obtained temperature of the battery module 20. In this embodiment, the semiconductor heating and cooling unit 124 may include a semiconductor cooling sheet.
Further, referring to fig. 7, in the present embodiment, the distributed thermal management system 10 further includes a centralized monitoring device 200.
The centralized monitoring device 200 is connected to each of the thermal management devices 100, and the centralized monitoring device 200 obtains the temperatures of the battery modules 20 obtained by the plurality of temperature collection assemblies 130, and sends a temperature adjustment signal to the thermal control assembly 120 according to the temperatures of the battery modules 20.
In this embodiment, the centralized monitoring device 200 may calculate an optimal battery temperature range according to the temperature of each battery module 20, the current running condition of the vehicle, the external temperature or the electricity consumption condition, and send a temperature adjustment signal according to the calculation result to change the first temperature threshold and the second temperature threshold of the thermal management device 100.
In this way, by adopting the distributed thermal management system, the plurality of thermal management devices 100 work relatively independently, and each thermal control component 120 corresponds to one thermal transfer component 110, so as to solve the defect that a single heat source or cold source cannot perform balanced temperature control on each battery module 20 under the condition of excessive battery modules 20.
Further, in this embodiment, the centralized monitoring device 200 is further configured to connect to a display device, and send the temperature information of each battery module 20 to the display device for displaying.
In this way, the user can intuitively grasp the temperature condition of each of the battery modules 20.
Second embodiment
Referring to fig. 8, the present embodiment provides a distributed thermal management system 10, which is applied to a battery module 20, wherein the battery module 20 includes a plurality of battery cells 201, the distributed thermal management system 10 includes a plurality of thermal management devices 100, and the thermal management devices 100 include a heat transfer component 110 and a heat control component 120.
Unlike the arrangement of the heat transfer assembly 110 described in the first embodiment, in this embodiment, the heat transfer assembly 110 is disposed in the battery module 20 to be in contact with the plurality of battery cells 201.
Specifically, referring to fig. 9, the heat transfer assembly 110 includes a liquid flat tube 115 that is disposed in the battery module 20 and contacts the plurality of battery cells 201, and a liquid inlet 1151 and a liquid outlet 1152 of the liquid flat tube 115 are respectively connected to the heat control assembly 120. The liquid flat tube 115 is arranged in a wave shape and is detoured in the battery module 20, so as to increase the contact area between the liquid flat tube 115 and the battery cell 201 and improve the heat transfer efficiency during heating or cooling.
The heat control assembly 120 is connected to the heat transfer assembly 110, and the heat control assembly 120 controls the heat transfer assembly 110 to raise or lower temperature.
Specifically, the specific implementation of the thermal control assembly 120 is referred to the implementation described in the first embodiment of the present invention, and will not be described herein.
Third embodiment
The present embodiment provides a battery, which includes a plurality of battery modules and the distributed thermal management system provided in the first embodiment and the second embodiment of the present invention.
In summary, in the distributed thermal management system and the battery according to the present invention, a plurality of thermal management devices 100 are provided, and each thermal management device 100 includes a heat transfer assembly 110 disposed between two adjacent battery modules 20, and a thermal control assembly 120 connected to the heat transfer assembly 110. The heat transfer assembly 110 is controlled to raise or lower temperature by the heat control assembly 120 to control the temperature of the adjacent two battery modules 20. In this way, the centralized temperature control of the prior art is replaced by a distributed thermal management system, so that more accurate temperature control can be performed on the battery modules 20 with different temperatures more specifically.
The above description is only of the preferred embodiments of the present invention and is not intended to limit the present invention, but various modifications and variations can be made to the present invention by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention. It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures.
The foregoing is merely illustrative of the present invention, and the present invention is not limited thereto, and any person skilled in the art will readily recognize that variations or substitutions are within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (7)
1. A distributed thermal management system for use with a battery module, the distributed thermal management system comprising a plurality of thermal management devices, the thermal management devices comprising:
A heat transfer assembly disposed between adjacent two battery modules;
a heat control assembly coupled to the heat transfer assembly, the heat control assembly controlling the heat transfer assembly to increase or decrease in temperature;
The temperature acquisition component is arranged on the battery module, acquires the temperature of the battery module and sends the temperature to the heat control component so that the heat control component can control the heat transfer component to raise or lower the temperature according to the temperature of the battery module;
the heat transfer assembly comprises a plurality of liquid conduits or a plurality of liquid channels which are arranged in a roundabout way, liquid inlets and liquid outlets of the liquid conduits or the liquid channels are arranged at different positions, and the liquid inlets and the liquid outlets are respectively connected with the heat control assembly;
The thermal management device positioned between two adjacent battery modules comprises at least two temperature acquisition assemblies, wherein the two temperature acquisition assemblies respectively acquire the temperatures of the two adjacent battery modules and send the temperatures to the thermal control assembly, so that the thermal control assembly controls the thermal transfer assembly to heat or cool according to the obtained average temperature value of the two battery modules;
The thermal control assembly includes:
a semiconductor heating and refrigerating unit for heating or cooling the liquid in the liquid conduit according to the current flow direction; and
And the control unit is connected with the semiconductor heating and refrigerating unit and used for controlling the current flow direction of the semiconductor heating and refrigerating unit according to the obtained temperature of the battery module.
2. The distributed thermal management system of claim 1, wherein the heat transfer assembly comprises a hollow heat conducting plate and a liquid conduit arranged in the hollow heat conducting plate in a roundabout manner, and a liquid inlet and a liquid outlet of the liquid conduit are respectively connected with the heat control assembly.
3. The distributed thermal management system of claim 1, wherein the heat transfer assembly comprises a hollow thermally conductive plate having a plurality of liquid baffles disposed therein, the liquid baffles dividing an interior cavity of the hollow thermally conductive plate into a plurality of liquid channels that detour liquid in the interior cavity of the hollow thermally conductive plate; the liquid inlet and the liquid outlet of the hollow heat-conducting plate are respectively connected with the heat control component.
4. The distributed thermal management system of claim 1 wherein the thermal control assembly comprises:
An electric heating unit for heating the liquid in the liquid conduit;
A heat radiating unit for cooling the liquid in the liquid conduit; and
And the control unit is used for selecting to heat or cool the heat transfer assembly according to the obtained temperature of the battery module, and is respectively connected with the electric heating unit and the heat dissipation unit.
5. A distributed thermal management system for a battery module, the battery module including a plurality of battery cells, the distributed thermal management system comprising a plurality of thermal management devices, the thermal management devices comprising:
A heat transfer assembly disposed in the battery module to be in contact with the plurality of battery cells; the heat transfer assembly is positioned between the battery module and an adjacent battery module of the battery module;
a heat control assembly coupled to the heat transfer assembly, the heat control assembly controlling the heat transfer assembly to increase or decrease in temperature;
The temperature acquisition component is arranged on the battery module, acquires the temperature of the battery module and sends the temperature to the heat control component so that the heat control component can control the heat transfer component to raise or lower the temperature according to the temperature of the battery module;
the heat transfer assembly comprises a plurality of liquid conduits or a plurality of liquid channels which are arranged in a roundabout way, liquid inlets and liquid outlets of the liquid conduits or the liquid channels are arranged at different positions, and the liquid inlets and the liquid outlets are respectively connected with the heat control assembly;
The thermal management device positioned between two adjacent battery modules comprises at least two temperature acquisition assemblies, wherein the two temperature acquisition assemblies respectively acquire the temperatures of the two adjacent battery modules and send the temperatures to the thermal control assembly, so that the thermal control assembly controls the thermal transfer assembly to heat or cool according to the obtained average temperature value of the two battery modules;
The thermal control assembly includes:
a semiconductor heating and refrigerating unit for heating or cooling the liquid in the liquid conduit according to the current flow direction; and
And the control unit is connected with the semiconductor heating and refrigerating unit and used for controlling the current flow direction of the semiconductor heating and refrigerating unit according to the obtained temperature of the battery module.
6. The distributed thermal management system of claim 5, wherein the heat transfer assembly comprises a flat liquid pipe which is arranged in the battery module in a roundabout manner and is in contact with the plurality of battery cells, and a liquid inlet and a liquid outlet of the flat liquid pipe are respectively connected with the heat control assembly.
7. A battery comprising a plurality of battery modules and the distributed thermal management system of any one of claims 1-6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710035484.7A CN106532192B (en) | 2017-01-17 | 2017-01-17 | Distributed thermal management system and battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710035484.7A CN106532192B (en) | 2017-01-17 | 2017-01-17 | Distributed thermal management system and battery |
Publications (2)
| Publication Number | Publication Date |
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| CN106532192A CN106532192A (en) | 2017-03-22 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107068929A (en) * | 2017-03-30 | 2017-08-18 | 华霆（合肥）动力技术有限公司 | A kind of battery container and supply unit |
| KR102043969B1 (en) | 2017-04-18 | 2019-11-12 | 주식회사 엘지화학 | Battery module |
| CN107425235A (en) * | 2017-09-18 | 2017-12-01 | 华霆（合肥）动力技术有限公司 | Heat abstractor and battery system |
| CN108539320A (en) * | 2018-03-22 | 2018-09-14 | 北京北交新能科技有限公司 | Flexible-packed battery module microchannel water cooling heat exchanger |
| CN108520992A (en) * | 2018-06-20 | 2018-09-11 | 华霆（合肥）动力技术有限公司 | Connector and battery modules |
| CN108624917A (en) * | 2018-07-09 | 2018-10-09 | 林州市中泰科技有限公司 | Preheating device and pre-heating mean before a kind of anode or the assembling of phosphorus pig iron raw material |
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Address after: 230000 Anhui Hefei economic and Technological Development Zone, Xin Xin Road, No. 62 power battery factory Applicant after: Huating (Hefei) Power Technology Co.,Ltd. Address before: 230000 No. 26, No. 5, Tsing Luen Road, Hefei economic and Technological Development Zone, Anhui Applicant before: Huating (Hefei) Power Technology Co.,Ltd. |
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