CN220753553U - New forms of energy battery module for electric motor car - Google Patents
New forms of energy battery module for electric motor car Download PDFInfo
- Publication number
- CN220753553U CN220753553U CN202322209962.5U CN202322209962U CN220753553U CN 220753553 U CN220753553 U CN 220753553U CN 202322209962 U CN202322209962 U CN 202322209962U CN 220753553 U CN220753553 U CN 220753553U
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- Prior art keywords
- module
- heat
- conducting plate
- battery
- heat conducting
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- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 claims description 9
- 238000001816 cooling Methods 0.000 claims description 8
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 claims description 6
- 238000010438 heat treatment Methods 0.000 claims description 6
- 239000003292 glue Substances 0.000 claims description 4
- 239000007788 liquid Substances 0.000 claims description 4
- 239000004964 aerogel Substances 0.000 claims description 3
- 239000000919 ceramic Substances 0.000 claims description 3
- 239000012153 distilled water Substances 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical group O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 3
- 238000000034 method Methods 0.000 claims 1
- 238000009792 diffusion process Methods 0.000 abstract description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 239000000306 component Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 239000008358 core component Substances 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Abstract
The utility model discloses a battery module for a new energy electric vehicle, which comprises a module shell and a battery cell assembly positioned in the module shell; the module shell comprises a top cover, a bottom plate and a module heat conducting plate, and the module heat conducting plate is provided with a wavy buffer structure; the inside of the module heat conducting plate is filled with working medium for conducting heat. According to the battery module provided by the utility model, the module heat-conducting plate is arranged, so that on one hand, the module has a certain elastic change in the height dimension due to the wave-shaped buffer structure of the module heat-conducting plate, and the height dimension change of the module caused by the charge and discharge of the battery core and the thickness change in the life cycle is self-adaptive; on the other hand, because the inside of the module heat conducting plate is filled with working media for conducting heat, the module heat conducting plate can exchange heat outwards, and the heat conducting efficiency of the module is improved. The battery module has the advantages of high space utilization rate, high heat conduction efficiency, high adaptability to height and size and good heat diffusion protection capability.
Description
Technical Field
The utility model belongs to the field of new energy automobiles, and particularly relates to a battery module for a new energy electric vehicle.
Background
The worldwide energy and environmental problems caused by the automobile industry make the research and development of new energy electric automobiles an urgent task in the current world. New energy electric vehicles are an effective way to solve the energy and environmental problems faced by automobile traffic. The battery system is the most important component in the power system of the new energy electric automobile, so that the safety of the power battery system is important. The requirements on battery power are higher and higher at present, and higher requirements are put on the safety, reliability, temperature consistency and service life of the battery, and particularly the functions of expansion, cooling, heating and temperature equalization of the battery cells are important factors influencing various performance indexes of a battery system.
The soft package battery module in the prior art is cooled by heat transfer through the aluminum shell, the battery cell is vertically placed, the cooling efficiency is low, the battery cell is limited by the height requirement of the battery package, and the matching rate of the battery cell and the height direction of the battery package is low.
Disclosure of Invention
In order to solve the problems of multiple types of electric cores, low cooling and heating efficiency, large temperature difference, thermal runaway spreading of the electric cores and the like in the prior art, the utility model aims to provide a battery module for a new energy electric vehicle, which has the advantages of high space utilization rate, high heat conduction efficiency, high height dimension adaptability and good thermal diffusion protection capability.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
a battery module for a new energy electric vehicle comprises a module shell and a battery cell assembly positioned in the module shell; wherein:
the module shell comprises a top cover, a bottom plate and a module heat conducting plate, wherein the module heat conducting plate is positioned between the top cover and the bottom plate and is used for connecting the top cover and the bottom plate into an integral structure; the module heat-conducting plate is provided with a wavy buffer structure, and the module heat-conducting plate has the main functions of providing elastic change of the height dimension of the module, and the expansion phenomenon can occur in the charge and discharge and life cycle of the battery core, and the dimension in the height direction can be dynamically followed according to the actual requirement of the battery core through the number and the shape of the wavy structure; the inside of the module heat-conducting plate is of a hollow structure, and is filled with working media for conducting heat, wherein the working media are distilled water, methanol or acetone and the like, and the working media are used for conducting heat through a phase change principle.
The battery cell assembly comprises a plurality of stacked battery cells, and insulating boards are arranged between the battery cells. Preferably, the insulating board is made of ceramic aerogel, the temperature resistance of the insulating board can reach more than 1000 ℃, and when thermal runaway of a certain cell occurs, the insulating board can fully isolate heat and protect adjacent cells from thermal runaway spreading caused by overhigh temperature or insulation failure. The quantity of the battery cells and the insulating boards inside the module can be adjusted according to actual demands so as to meet the requirements of battery packs of different vehicle types on the heights of the battery modules.
Further, the gap between the battery cell assembly and the module heat conducting plate is filled with heat conducting glue, so that heat exchange between the battery cell and the heat conducting plate is guaranteed to the greatest extent, and heat exchange efficiency is improved.
Further, a thermal management device is arranged at the top of the top cover or at the bottom of the bottom plate, and the thermal management device is a liquid cooling plate or a heating plate.
Compared with the traditional battery module structure, the technical scheme of the utility model has the beneficial effects that:
according to the battery module provided by the utility model, the module heat-conducting plate is arranged, so that on one hand, the module has a certain elastic change in the height dimension due to the wave-shaped buffer structure of the module heat-conducting plate, and the height dimension change of the module caused by the charge and discharge of the battery core and the thickness change in the life cycle is self-adaptive; on the other hand, because the inside of the module heat-conducting plate is of a hollow structure, the module heat-conducting plate can exchange heat outwards by filling the inside of the module heat-conducting plate with working media for conducting heat, so that the heat-conducting efficiency of the module is improved, and the module heat-conducting plate has excellent heat diffusion protection capability. In addition, the insulating board is arranged in the battery cell assembly, so that the problem of thermal runaway spreading of the battery cell is effectively solved, and the safety performance of the battery cell is improved.
Drawings
Fig. 1 is a schematic cross-sectional view of a battery module for a new energy electric vehicle according to the present utility model;
reference numerals: 1-top cover, 2-module heat conducting plate, 3-insulating heat insulating board, 4-cell, 5-bottom plate, 6-wave buffer structure.
Detailed Description
The present utility model will be further described with reference to the following examples and drawings so that those skilled in the art may better understand the present utility model and practice it, but the examples are not to be construed as limiting the present utility model.
In the description of the present utility model, it should be understood that the directions or positional relationships indicated by the terms "upper", "lower", "top", "bottom", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limitations of the present utility model. The terms "mounted," "connected," and the like are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally 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 utility model can be understood by those of ordinary skill in the art according to the specific circumstances.
Referring to fig. 1, a battery module for a new energy electric vehicle includes a module case and a battery cell assembly inside the module case; wherein:
the module shell comprises a top cover 1, a bottom plate 5 and a module heat-conducting plate 2 which is positioned between the top cover and the bottom plate and connects the top cover and the bottom plate into a whole structure, wherein the module heat-conducting plate 2 is provided with a wave-shaped buffer structure 6 which is mainly used for providing elastic change of the height dimension of the module, and the expansion phenomenon can occur in the charge and discharge and life cycle of the battery cell, and the dimension in the height direction can be dynamically followed according to the actual requirement of the battery cell through the quantity and the shape of the wave-shaped structure; the inside of the module heat conducting plate is of a hollow structure, and is filled with working media for conducting heat, wherein the working media are distilled water, methanol or acetone and the like. Further, a thermal management device (not shown) is arranged at the top of the top cover or at the bottom of the bottom plate, and the thermal management device is a liquid cooling plate or a heating plate.
The cell assembly comprises a plurality of stacked cells 4, and insulating boards 3 are arranged between the cells 4. Preferably, the insulating board 3 is made of ceramic aerogel, and the insulating board 3 is used for protecting adjacent cells from thermal runaway propagation caused by overhigh temperature or insulation failure. In specific application, the number of the battery cells 4 and the insulating boards 3 in the module can be adjusted according to actual requirements so as to adapt to the requirements of battery packs of different vehicle types on the heights of the battery modules.
As a preferred embodiment, the gap between the battery core component and the module heat conducting plate is filled with heat conducting glue, so that the heat exchange between the battery core and the heat conducting plate is guaranteed to the greatest extent, and the heat exchange efficiency is improved.
The implementation mode of the battery module provided by the utility model is as follows:
(1) Stacking the battery cell and the insulating board on the bottom plate according to design requirements to form a battery cell assembly;
(2) Welding the module heat-conducting plates and the top cover on both sides together with the bottom plate to form a module shell, and filling heat-conducting glue in a gap between the battery core assembly and the module heat-conducting plates;
(3) The end part of the module is provided with an insulating cover plate and a current collector to finally form a battery module;
(4) The bottom or the top of the battery module is provided with a thermal management device, such as a liquid cooling plate or a heating plate;
the heat transfer coefficient of the module heat conduction plate of the battery module provided by the utility model can reach 10,000 to 100,000W/m.K, which is about 250 times of copper and 500 times of aluminum, so that the cooling efficiency of the battery module can be greatly improved, the temperature difference of the battery cells is reduced, and the insulating board is arranged between the battery cells, thereby effectively preventing the thermal runaway of the battery cells.
It will be apparent that the described embodiments are some, but not all, embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
Claims (6)
1. A battery module for a new energy electric vehicle comprises a module shell and a battery cell assembly positioned in the module shell; the method is characterized in that: the module shell comprises a top cover, a bottom plate and a module heat conducting plate, wherein the module heat conducting plate is positioned between the top cover and the bottom plate and is used for connecting the top cover and the bottom plate into an integral structure; the module heat conducting plate is provided with a wavy buffer structure; the inside of the module heat conducting plate is of a hollow structure, and working media for conducting heat are filled in the module heat conducting plate.
2. The new energy electric vehicle battery module according to claim 1, wherein: the battery cell assembly comprises a plurality of stacked battery cells, and insulating boards are arranged between the battery cells.
3. The new energy electric vehicle battery module according to claim 2, wherein: the insulating board is made of ceramic aerogel.
4. A new energy electric vehicle battery module according to any one of claims 1 to 3, characterized in that: and a gap between the battery cell assembly and the module heat conducting plate is filled with heat conducting glue.
5. The new energy electric vehicle battery module according to claim 4, wherein: and a thermal management device is arranged at the top of the top cover or at the bottom of the bottom plate, and the thermal management device is a liquid cooling plate or a heating plate.
6. The new energy electric vehicle battery module according to claim 4, wherein: the working medium is distilled water, methanol or acetone.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322209962.5U CN220753553U (en) | 2023-08-16 | 2023-08-16 | New forms of energy battery module for electric motor car |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322209962.5U CN220753553U (en) | 2023-08-16 | 2023-08-16 | New forms of energy battery module for electric motor car |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220753553U true CN220753553U (en) | 2024-04-09 |
Family
ID=90559455
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322209962.5U Active CN220753553U (en) | 2023-08-16 | 2023-08-16 | New forms of energy battery module for electric motor car |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220753553U (en) |
-
2023
- 2023-08-16 CN CN202322209962.5U patent/CN220753553U/en active Active
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| GR01 | Patent grant |