CN114583321A - Battery module, battery package and car - Google Patents
Battery module, battery package and car Download PDFInfo
- Publication number
- CN114583321A CN114583321A CN202210127062.3A CN202210127062A CN114583321A CN 114583321 A CN114583321 A CN 114583321A CN 202210127062 A CN202210127062 A CN 202210127062A CN 114583321 A CN114583321 A CN 114583321A
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- Prior art keywords
- battery
- water
- heat
- plates
- battery module
- 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.)
- Granted
Links
- 238000001816 cooling Methods 0.000 claims abstract description 49
- 239000000178 monomer Substances 0.000 claims abstract description 23
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 20
- 238000009434 installation Methods 0.000 claims abstract description 10
- 238000009413 insulation Methods 0.000 claims description 17
- 239000004964 aerogel Substances 0.000 claims description 4
- 239000000853 adhesive Substances 0.000 claims description 2
- 230000001070 adhesive effect Effects 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 4
- 230000007613 environmental effect Effects 0.000 abstract description 4
- 239000000463 material Substances 0.000 description 3
- 210000005069 ears Anatomy 0.000 description 2
- 239000003292 glue Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- 238000004026 adhesive bonding Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 239000003063 flame retardant Substances 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000012774 insulation material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
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
- H01M10/62—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
-
- 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
- H01M10/658—Means for temperature control structurally associated with the cells by thermal insulation or shielding
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M2220/00—Batteries for particular applications
- H01M2220/20—Batteries in motive systems, e.g. vehicle, ship, plane
-
- 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)
- Battery Mounting, Suspending (AREA)
Abstract
The invention relates to the technical field of power batteries, and discloses a battery module, a battery pack and an automobile, wherein the battery module comprises two water-cooling plates, two heat-insulating plates and a plurality of battery monomers, the two water-cooling plates are oppositely arranged on the left and right sides, the two heat-insulating plates are oppositely arranged up and down, the two water-cooling plates and the two heat-insulating plates jointly enclose to form an installation cavity, and the plurality of battery monomers are arranged in the installation cavity; the battery units are arranged in left and right rows, the bottom surface of each battery unit is connected with the corresponding water cooling plate, and the top surface of each battery unit is provided with a lug. The battery module of the embodiment of the invention reduces the energy loss of the water cooling plate caused by environmental factors, thereby improving the temperature control effect of the water cooling plate on the battery monomer.
Description
Technical Field
The invention relates to the technical field of power batteries, in particular to a battery module, a battery pack and an automobile.
Background
At present, a battery pack in an electric vehicle includes a plurality of battery modules, and each battery module includes a plurality of battery cells therein. During the charging and discharging processes of the electric automobile, the temperature of the battery monomer can obviously rise; generally, a cold water plate is disposed above or below the battery module to dissipate heat of the battery cells. However, the water-cooling plate exchanges heat with the battery cell and also exchanges heat with the water-cooling plate in the environment outside the battery module, so that a part of water-cooling energy is diffused into the environment and consumed, which causes a large energy loss.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: how to reduce the energy loss caused by the environmental factors to the water cooling plate and further improve the temperature control effect of the water cooling plate to the battery monomer.
In order to solve the technical problems, the invention provides a battery module which comprises two water-cooling plates, two heat insulation plates and a plurality of battery monomers, wherein the two water-cooling plates are oppositely arranged at the left and right sides, the two heat insulation plates are oppositely arranged at the upper and lower sides, the two water-cooling plates and the two heat insulation plates jointly enclose to form an installation cavity, and the plurality of battery monomers are arranged in the installation cavity; the battery units are arranged in left and right rows, the bottom surface of each battery unit is connected with the corresponding water cooling plate, and the top surface of each battery unit is provided with a lug.
Furthermore, the side surface of the battery monomer is abutted against the thermal insulation plate.
Further, each row of the battery cells has an upper layer and a lower layer.
Furthermore, the battery module further comprises a heat conduction layer arranged between the single battery and the water cooling plate, and the single battery is connected with the water cooling plate through the heat conduction layer.
Further, the heat conducting layer is made of heat conducting structural adhesive or heat conducting gel.
Further, the heat insulation board is made of aerogel.
Furthermore, the battery monomer is cuboid.
In order to solve the above technical problem, another aspect of the present invention provides a battery pack, which includes a plurality of battery modules according to any one of the above aspects, wherein the plurality of battery modules are arranged in a horizontal array.
Further, the battery pack further comprises a bottom plate connected with the lower surface of each battery module.
In order to solve the technical problem, the invention further provides an automobile comprising the battery pack.
Compared with the prior art, the battery module, the battery pack and the automobile provided by the technical scheme have the beneficial effects that: through setting up battery monomer in the installation intracavity that heat insulating board and water-cooling board formed, the free bottom surface of battery is connected with the water-cooling board, makes battery monomer and water-cooling board can be good heat conduction, realizes thermal-insulated of battery module through two-layer heat insulating board, and a plurality of battery modules arrange into the energy loss that the reducible environmental factor of battery package caused the water-cooling board, and then improve the free temperature control effect of water-cooling board to the battery.
The left and right sides through locating battery module with the water-cooling board can save a large amount of bottom spaces of battery package, makes battery package Z direction space can put more battery monomer, and holistic volume weight density can effectively be promoted.
Through making free bottom surface of battery and being connected with the water-cooling board, and then make two utmost point ears on the free top surface of battery be located the middle part position of installation cavity, two free utmost point ears of battery set up relatively, the electric connection of being convenient for.
Drawings
Fig. 1 is a schematic structural view of a battery pack according to an embodiment of the present invention;
fig. 2 is an internal schematic view of a battery pack according to an embodiment of the present invention.
The battery module comprises a battery module 10, a water cooling plate 11, a thermal insulation plate 12, a battery monomer 13, a mounting cavity 14, a lug 15 and a bottom plate 2.
Detailed Description
The following detailed description of embodiments of the present invention is provided in connection with the accompanying drawings and examples. The following examples are intended to illustrate the invention but are not intended to limit the scope of the invention.
In the description of the present invention, it should be understood that the terms "central", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. used herein are used in the orientations and positional relationships indicated in the drawings, which are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, are not to be construed as limiting the invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted" and "connected" are to be construed broadly, e.g., as being fixed or detachable or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
As shown in fig. 1 and 2, an embodiment of the invention provides a battery pack, where the battery pack includes a plurality of battery modules 10, the battery modules 10 are arranged in a horizontal array, the battery module 10 includes two water-cooling plates 11, two heat-insulating plates 12 and a plurality of battery cells 13, the two water-cooling plates 11 are arranged opposite to each other from left to right, the two heat-insulating plates 12 are arranged opposite to each other from top to bottom, the two water-cooling plates 11 and the two heat-insulating plates 12 together enclose a mounting cavity 14, and the plurality of battery cells 13 are arranged in the mounting cavity 14; the plurality of single batteries 13 are arranged in two rows, namely a left row and a right row, the bottom surfaces of the single batteries 13 are respectively connected with the opposite water cooling plates 11, and the top surfaces of the single batteries 13 are respectively provided with a lug 15.
Based on the above scheme, through setting up battery monomer 13 in installation cavity 14 that heat insulating board 12 and water-cooling board 11 formed, battery monomer 13's bottom surface is connected with water-cooling board 11, makes battery monomer 13 and water-cooling board 11 heat conduction that can be good, realizes thermal-insulated of battery module 10 through two-layer heat insulating board 12, and a plurality of battery modules 10 arrange into the energy loss that the reducible environmental factor of battery package caused water-cooling board 11, and then improve the temperature control effect of water-cooling board 11 to battery monomer 13.
Through locating water-cooling plate 11 in the left and right sides of battery module 10, can save a large amount of bottom spaces of battery package, make battery package Z direction space can put more battery monomer 13, holistic volume weight density can effectively be promoted.
Through making battery monomer 13's bottom surface and water-cooling plate 11 be connected, and then make utmost point ear 15 on two battery monomer 13 top surfaces be located the middle part position of installation cavity 14, two battery monomer 13's utmost point ear 15 sets up relatively, the electric connection of being convenient for.
Specifically, as shown in fig. 1 and fig. 2, the battery pack of the present embodiment has 6 battery modules 10 arranged in two rows and three columns, two adjacent battery modules 10 in the same row share one water-cooling plate 11, and a water-cooling plate 11 is also disposed between two rows of battery modules 10.
In addition, when the battery pack is used in cold regions, the water cooling plate 11 needs to be heated by introducing proper warm water so as to raise the temperature of the whole battery pack to a reasonable working temperature, usually about 25 ℃ of room temperature, and the battery can work more efficiently and safely at the temperature. The battery package of this embodiment realizes thermal-insulated of battery package through upper and lower two-layer thermal insulation material, makes electric automobile can realize the intensification fast in cold start, and when using winter simultaneously, the heat can not run off in a large number, and then promotes battery energy utilization, promotes electric automobile's continuation of the journey mileage in winter.
Further, as shown in fig. 1 and 2, the side surface of the battery cell 13 abuts against the heat insulation plate 12, so that the battery cell 13 is fixed; in addition, the water-cooling plate 11 needs to have certain strength, so that the rigidity and strength of the whole battery pack are improved.
Further, as shown in fig. 1 and 2, each row of the battery cells 13 has upper and lower layers. Specifically, the arrangement of the batteries in the battery pack is different from the upward design of the conventional tab 15, the batteries are arranged in a transverse lying manner in the embodiment of the invention, the heat insulation plate 12 plays the roles of isolating the outdoor environment temperature, protecting and buffering, and meanwhile, the heat insulation plate 12 can realize national standard flame retardance and insulation, so that the safety of drivers and passengers of electric vehicles under extreme conditions is ensured. The insulating board 12 can be made of aerogel.
Further, in this embodiment, the battery module 10 further includes a heat conduction layer disposed between the single battery 13 and the water cooling plate 11, and the single battery 13 is connected to the water cooling plate 11 through the heat conduction layer. The heat conducting layer can ensure that heat of the battery can be in contact with the water cooling plate 11 to dissipate heat through the heat conducting path when the battery works.
Optionally, the heat-conducting layer adopts heat conduction structure to glue or heat conduction gel to make, if adopt heat conduction gel, need extra structure to fix, rivet, structure glue bonding etc. if select heat conduction structure to glue then accessible a material realize heat conduction and bonding, should realize national standard's fire-retardant, insulating simultaneously by the heat conduction material, guarantee passenger's safety.
In addition, in the embodiment, since the tabs 15 of the two rows of left and right battery cells 13 are arranged corresponding to each other, the bus bars can be designed according to the BMS, and the tabs 15 are connected in series or in parallel, so that the use distance and cost of an electric path are greatly saved.
Further, the battery cell 13 is a rectangular parallelepiped.
As shown in fig. 1 and 2, the battery pack of the present embodiment further includes a bottom plate 2 connected to the lower surfaces of the battery modules, respectively.
Another aspect of the embodiment of the present invention provides an automobile, including the battery pack according to the above aspect; the automobile adopting the battery pack of the scheme reduces energy loss, improves the energy efficiency of the whole battery pack, can isolate the external temperature environment from the internal temperature environment to a great extent, improves the temperature control efficiency of the whole battery pack, saves energy consumption and also improves the temperature consistency of the battery pack in a working state.
In addition, the heat insulation plate 12 made of aerogel materials is small in size due to low density of the heat insulation plate, the weight energy density and the volume energy density of the whole electric vehicle cannot be obviously reduced, the power of the electric vehicle after heat insulation for heat dissipation and heating can be obviously reduced, the endurance mileage and the service environment of the electric vehicle can be obviously optimized, the conversion rate of the battery to the mileage is improved, the integral service condition of the battery pack can be more stable, the temperature gradient is smaller, and the service life of the battery can be prolonged to a certain extent.
To sum up, the embodiment of the invention provides a battery pack and an automobile, which have better temperature control performance on a battery, can better isolate the battery from an external environment, enables the battery pack to occupy smaller space, and improves the space utilization rate of the automobile; and the battery pack has more reliable safety protection and better electric path mode.
The above description is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and substitutions can be made without departing from the technical principle of the present invention, and these modifications and substitutions should also be regarded as the protection scope of the present invention.
Claims (10)
1. A battery module is characterized by comprising two water cooling plates, two heat insulation plates and a plurality of battery monomers, wherein the two water cooling plates are oppositely arranged on the left and right sides, the two heat insulation plates are oppositely arranged up and down, the two water cooling plates and the two heat insulation plates jointly enclose to form an installation cavity, and the plurality of battery monomers are arranged in the installation cavity; the battery units are arranged in left and right rows, the bottom surface of each battery unit is connected with the corresponding water cooling plate, and the top surface of each battery unit is provided with a lug.
2. The battery module according to claim 1, wherein the side surfaces of the battery cells are abutted against the heat insulating plate.
3. The battery module according to claim 2, wherein each row of the battery cells has upper and lower layers.
4. The battery module according to claim 1, further comprising a heat conduction layer disposed between the battery cells and the water-cooling plate, wherein the battery cells are connected to the water-cooling plate through the heat conduction layer.
5. The battery module according to claim 4, wherein the heat conducting layer is made of heat conducting structural adhesive or heat conducting gel.
6. The battery module according to claim 1, wherein the heat insulation plate is made of aerogel.
7. The battery module according to claim 1, wherein the battery cells are rectangular parallelepiped.
8. A battery pack comprising a plurality of battery modules according to any one of claims 1 to 7, wherein the plurality of battery modules are arranged in a horizontal array.
9. The battery pack according to claim 8, further comprising bottom plates connected to lower surfaces of the battery modules, respectively.
10. An automobile, characterized by comprising the battery pack according to claim 8 or 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210127062.3A CN114583321B (en) | 2022-02-10 | 2022-02-10 | Battery module, battery pack and automobile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210127062.3A CN114583321B (en) | 2022-02-10 | 2022-02-10 | Battery module, battery pack and automobile |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114583321A true CN114583321A (en) | 2022-06-03 |
| CN114583321B CN114583321B (en) | 2024-01-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210127062.3A Active CN114583321B (en) | 2022-02-10 | 2022-02-10 | Battery module, battery pack and automobile |
Country Status (1)
| Country | Link |
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| CN (1) | CN114583321B (en) |
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| Publication number | Publication date |
|---|---|
| CN114583321B (en) | 2024-01-30 |
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