CN213601920U - Battery module and battery pack - Google Patents
Battery module and battery pack Download PDFInfo
- Publication number
- CN213601920U CN213601920U CN202022739802.8U CN202022739802U CN213601920U CN 213601920 U CN213601920 U CN 213601920U CN 202022739802 U CN202022739802 U CN 202022739802U CN 213601920 U CN213601920 U CN 213601920U
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- CN
- China
- Prior art keywords
- battery
- battery module
- end plate
- heat insulation
- electric core
- Prior art date
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- 206010020649 Hyperkeratosis Diseases 0.000 claims abstract description 12
- 238000009434 installation Methods 0.000 claims abstract description 10
- 238000009413 insulation Methods 0.000 claims description 40
- 238000007731 hot pressing Methods 0.000 claims description 3
- 239000011148 porous material Substances 0.000 claims description 3
- 238000010438 heat treatment Methods 0.000 abstract description 10
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 abstract description 3
- 229910001416 lithium ion Inorganic materials 0.000 abstract description 3
- 238000000926 separation method Methods 0.000 abstract description 3
- 230000000694 effects Effects 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 229910052782 aluminium Inorganic materials 0.000 description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 3
- 238000001816 cooling Methods 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 101100495270 Caenorhabditis elegans cdc-26 gene Proteins 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 239000000741 silica gel Substances 0.000 description 2
- 229910002027 silica gel Inorganic materials 0.000 description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
Images
Classifications
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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- Secondary Cells (AREA)
- Battery Mounting, Suspending (AREA)
Abstract
The utility model belongs to the technical field of lithium ion battery, concretely relates to battery module and battery package, including end plate, curb plate and electric core, the both sides of end plate are provided with the installation department, and the bottom of installation department is provided with the mounting hole of being connected with the battery box, curb plate and end plate fixed connection to enclose with the end plate and establish and form the holding chamber, electric core accepts at the holding intracavity, and wherein, the bottom of installation department is provided with thermal-insulated callus on the sole. Compared with the prior art, the utility model discloses a bottom at the installation department sets up thermal-insulated callus on the sole, can carry out the thermal separation between battery module end plate and the battery box, has prevented effectively that the electric core at battery module both ends from when heating, and the heat passes through in end plate conduction to the battery box, and then the problem of the heat loss that leads to, has prevented the phenomenon that the temperature of both ends electric core is lower than the temperature of middle electric core in the battery module, has promoted the uniformity of electric core heating widely, improves the life of battery module. Furthermore, the utility model also provides a battery package.
Description
Technical Field
The utility model belongs to the technical field of lithium ion battery, concretely relates to battery module and battery package.
Background
At present, the lithium ion battery module generally uses end plates and side plates made of metal materials such as aluminum, aluminum alloy and the like as a structural frame of the battery module, and the metal plates have good ductility and structural strength, so that the battery module can effectively bear the conditions such as impact, expansion and the like of the module.
However, direct contact when the assembly between the bottom of the metal end plate among the prior art and the battery box, the electric core at battery module both ends can be with heat transfer to end plate when the battery package is using liquid cooling system low temperature heating, transmits for the battery box through the bottom of end plate again, and then has caused a large amount of heat to run off, has leaded to the electric core temperature in the middle of the battery module too high and the electric core temperature at both ends is lower, has influenced the uniformity of electric core. In order to solve the problem, the liquid cooling system of the battery pack is mainly optimized or a heat insulation structure is added in the industry for improvement, but the measures generally have the defects of high cost or complex scheme and are not beneficial to actual implementation.
In view of the above, there is a need for further improvements to the above prior art to meet practical production needs.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a: to prior art's not enough, and the battery module that provides, insulate against heat to the bottom of end plate effectively, prevent that the battery module when using liquid cooling system heating, the heat of battery module both ends electricity core leads to the heat to scatter and disappear in by end plate transmission to the battery box, has guaranteed the uniformity of electric core heating.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
a battery module, comprising:
the battery box comprises an end plate, a battery box and a battery box, wherein mounting parts are arranged on two sides of the end plate, and mounting holes connected with the battery box are formed in the bottom of the mounting parts;
the side plate is fixedly connected with the end plate and is surrounded with the end plate to form an accommodating cavity; and
the battery cell is accommodated in the accommodating cavity;
wherein, the bottom of installation department is provided with thermal-insulated callus on the sole.
As right the utility model discloses in the improvement of battery module, thermal-insulated callus on the sole is including thermal-insulated the pad body, the connecting hole has been seted up on the thermal-insulated pad body, the connecting hole with the axis coincidence of mounting hole.
As to the improvement of the battery module in the present invention, the aperture of the connecting hole is greater than or equal to the mounting hole.
As right the utility model discloses in the improvement of battery module, thermal-insulated callus on the sole still includes the leg, the leg centers on the connecting hole sets up, the leg stretches into the mounting hole, and with the pore wall gomphosis of mounting hole is connected.
As right the utility model discloses in the improvement of battery module, thermal-insulated pad body with be the integrated into one piece structure between the leg.
As an improvement to the battery module of the present invention, the thermal conductivity of the heat insulating foot pad is in the range of 0-1W/(m.K).
As right the utility model discloses in battery module's improvement, thermal-insulated callus on the sole through the connected mode of bonding, hot pressing or joint with the installation department is connected.
As right the utility model discloses in the improvement of battery module, the thickness scope of thermal-insulated callus on the sole is 1 ~ 5 mm.
As right the utility model discloses in the improvement of battery module, still include the heat insulating mattress, the heat insulating mattress set up in the end plate with between the electric core.
The beneficial effects of the utility model reside in that: compared with the prior art, the utility model discloses a bottom at the installation department sets up thermal-insulated callus on the sole, can carry out the thermal separation between battery module end plate and the battery box, has prevented effectively that the electric core at battery module both ends from when heating, and the heat passes through in end plate conduction to the battery box, and then the problem of the heat loss that leads to, has prevented the phenomenon that the temperature of both ends electric core is lower than the temperature of middle electric core in the battery module, has promoted the uniformity of electric core heating widely, improves the life of battery module.
The utility model also provides a battery package, including a plurality of battery module, the battery module does the utility model provides a battery module. Through inciting somebody to action the utility model discloses an use the battery module in the battery package, improved the heating uniformity of battery package effectively, improve the life of battery package.
Drawings
The accompanying drawings, which are described herein, serve to provide a further understanding of the invention and constitute a part of this specification, and the exemplary embodiments and descriptions thereof are provided to explain the invention and not to constitute an undue limitation on the invention. In the drawings:
fig. 1 is a schematic structural view of the present invention;
FIG. 2 is an exploded view of the present invention;
fig. 3 is a schematic structural view of the middle plate of the present invention;
FIG. 4 is a schematic structural view of an embodiment of a heat insulation foot pad of the present invention;
FIG. 5 is a schematic structural view of another embodiment of the heat insulation foot pad of the present invention;
wherein, 1-end plate; 2-side plate; 3-electric core; 4-heat insulation foot pad; 5-a heat insulation pad; 11-a mounting portion; 41-heat insulation pad body; 42-enclosure wall; 111-mounting holes; 411-attachment hole.
Detailed Description
As used in the specification and in the claims, certain terms are used to refer to particular components. As one skilled in the art will appreciate, manufacturers may refer to a component by different names. This specification and claims do not intend to distinguish between components that differ in name but not function. In the following description and in the claims, the terms "include" and "comprise" are used in an open-ended fashion, and thus should be interpreted to mean "include, but not limited to. "substantially" means within an acceptable error range, within which a person skilled in the art can solve the technical problem to substantially achieve the technical result.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", horizontal "and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, 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 meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
The present invention will be described in further detail with reference to the accompanying drawings, which are not intended to limit the present invention.
As shown in fig. 1 to 4, the battery module provided in this embodiment includes an end plate 1, a side plate 2 and a battery cell 3, wherein mounting portions 11 are disposed on two sides of the end plate 1, a mounting hole 111 connected to a battery box is disposed at the bottom of the mounting portion 11, the side plate 2 is fixedly connected to the end plate 1, the side plate 2 and the end plate 1 enclose to form a containing cavity, and the battery cells 3 are stacked and contained in the containing cavity, wherein a heat insulating foot pad 4 is disposed at the bottom of the mounting portion 11, and the heat insulating foot pad 4 is disposed to thermally insulate the end plate 1 from the battery box, so that when the battery module is heated, heat of the battery cells 3 at two ends of the battery module is difficult to be directly conducted into the battery box through the end plate 1, thereby playing a role of heat preservation, effectively preventing heat loss, keeping temperature of the battery cells 3 at two ends of the battery module consistent with that of the battery cell 3, the service life of the battery module is prolonged.
It should be noted that the end plate 1 is a metal plate, such as an aluminum plate, and the heat insulation foot pad 4 has a stronger heat insulation capability and a lower thermal conductivity than the end plate 1 made of an aluminum material, so as to achieve a heat insulation function. In the present embodiment, the thermal conductivity of the heat-insulating mat 4 is in the range of 0-1W/(m.K).
The heat insulation foot pad 4 may be a plastic heat insulation pad, such as a PSU or PC plastic heat insulation pad, or may be a polymer heat insulation pad, a stone heat insulation pad, or a silica gel heat insulation pad, which is commonly used, and is fixedly connected to the mounting portion 11 by direct bonding, hot pressing or clamping.
Specifically, the heat insulation foot pad 4 in this embodiment includes the heat insulation pad body 41, a connection hole 411 is formed in the heat insulation pad body 41, the connection hole 411 coincides with the central axis of the mounting hole 111, and the aperture of the connection hole 411 is greater than or equal to the mounting hole 111. The arrangement can facilitate the fasteners on the mounting part 11 to penetrate through the heat insulation pad body 41, so that the battery module and the battery box are locked.
The heat insulation pad body 41 is of a sheet structure under normal conditions, and the thickness range of the heat insulation pad body can be 1-5 mm, so that the assembly gap between the battery module and the battery box is not influenced due to the fact that the heat insulation pad body is too thick, and the energy density of the battery box is reduced due to the fact that the volume of the battery box is increased; the heat insulation capability is not influenced due to over-thinness, and the heat insulation effect is greatly improved.
The heat insulation pad body 41 may be provided in a regular shape, such as a triangle, a square, a trapezoid, a circle, or the like, or may be provided in an irregular shape, which may be adapted reasonably according to specific production requirements. It is to be understood that the present embodiment does not specifically limit the shape of the insulation pad body 41.
As a preferable scheme of this embodiment, the battery module further includes a heat insulation pad 5, and the heat insulation pad 5 is disposed between the end plate 1 and the electric core 3. Through add heat insulating mattress 5 between end plate 1 and electric core 3, can carry out the thermal separation to end plate 1 and the electric core 3 at battery module both ends, prevent further that the heat of both ends electric core 3 from passing through end plate 1 conduction to the battery box in, improved the uniformity of 3 bulk heating of electric core.
The performance of the heat insulation pad 5 in the embodiment is similar to that of the heat insulation foot pad 4, and in actual execution, the heat insulation foot pad 4 can be made of the same thickness and material, so that the applicability of the material is improved, and the material cost of the battery module in production is reduced. But because heat insulating mattress 5 installs between electric core 3 and end plate 1, heat insulating mattress 5 can also adopt the heat insulating mattress that has certain elasticity and ductility, for example the silica gel heat insulating mattress, can enough realize thermal-insulated effect, simultaneously, also can play certain buffering, cushioning effect between end plate 1 and electric core 3, improves the reliability of battery module.
As shown in fig. 5, for another implementation manner provided by the present invention, different from the first embodiment, in this embodiment, the heat insulation foot pad 4 further includes a surrounding wall 42, the surrounding wall 42 is disposed around the connection hole 411, and the surrounding wall 42 extends into the installation hole 111 and is connected to the hole wall of the installation hole 111 in an embedded manner. Other structures of this embodiment are the same as those of the first embodiment, and are not described herein again.
Through setting up the enclosure wall 42 in this embodiment to stretch into in the pore wall of mounting hole 111, on the one hand, can play the effect of location to thermal-insulated callus on the sole 4, when the assembly, only need aim at the enclosure wall 42 mounting hole 111 and can install fast, improved thermal-insulated callus on the sole 4's assembly efficiency widely.
Preferably, the heat insulation mat body 41 and the surrounding wall 42 are integrally formed, so that the connection strength of the heat insulation mat 4 is improved, and the assembling process is reduced.
The utility model also provides a battery package, including a plurality of battery module, this battery module is the battery module of above-mentioned embodiment. Through using the battery module in the above embodiment in the battery pack, the heating consistency of the battery pack is effectively improved, and the service life of the battery pack is prolonged.
While the foregoing description shows and describes several preferred embodiments of the invention, it is to be understood, as noted above, that the invention is not limited to the forms disclosed herein, but is not intended to be exhaustive of other embodiments, and is capable of use in various other combinations, modifications, and environments and is capable of changes within the scope of the inventive concept as expressed above, or as otherwise known in the relevant art. But that modifications and variations may be effected by those skilled in the art without departing from the spirit and scope of the invention, which is to be limited only by the claims appended hereto.
Claims (10)
1. A battery module, comprising:
the battery box comprises an end plate (1), wherein mounting parts (11) are arranged on two sides of the end plate, and mounting holes (111) connected with the battery box are formed in the bottom of the mounting parts (11);
the side plate (2) is fixedly connected with the end plate (1) and is surrounded with the end plate (1) to form an accommodating cavity; and
the battery cell (3) is accommodated in the accommodating cavity;
wherein, the bottom of installation department (11) is provided with thermal-insulated callus on the sole (4).
2. The battery module according to claim 1, wherein: heat-insulating foot pad (4) are including heat-insulating pad body (41), connecting hole (411) have been seted up on heat-insulating pad body (41), connecting hole (411) with the axis coincidence of mounting hole (111).
3. The battery module according to claim 2, wherein: the aperture of the connecting hole (411) is larger than or equal to that of the mounting hole (111).
4. The battery module according to claim 2, wherein: thermal-insulated callus on sole (4) still include bounding wall (42), bounding wall (42) surround connecting hole (411) set up, bounding wall (42) stretch into mounting hole (111), and with the pore wall gomphosis of mounting hole (111) is connected.
5. The battery module according to claim 4, wherein: the heat insulation cushion body (41) and the surrounding wall (42) are of an integrally formed structure.
6. The battery module according to claim 1, wherein: the heat conductivity coefficient range of the heat insulation foot pad (4) is 0-1W/(m.K).
7. The battery module according to claim 1, wherein: the heat insulation foot pad (4) is connected with the mounting part (11) through bonding, hot pressing or clamping.
8. The battery module according to claim 1, wherein: the thickness range of the heat insulation foot pad (4) is 1-5 mm.
9. The battery module according to claim 1, wherein: the battery cell structure is characterized by further comprising a heat insulation pad (5), wherein the heat insulation pad (5) is arranged between the end plate (1) and the battery cell (3).
10. A battery pack, comprising: the battery module comprises a plurality of battery modules, wherein the battery modules are as claimed in any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022739802.8U CN213601920U (en) | 2020-11-24 | 2020-11-24 | Battery module and battery pack |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022739802.8U CN213601920U (en) | 2020-11-24 | 2020-11-24 | Battery module and battery pack |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213601920U true CN213601920U (en) | 2021-07-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022739802.8U Active CN213601920U (en) | 2020-11-24 | 2020-11-24 | Battery module and battery pack |
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| Country | Link |
|---|---|
| CN (1) | CN213601920U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114709462A (en) * | 2022-04-11 | 2022-07-05 | 江苏正力新能电池技术有限公司 | Battery module |
-
2020
- 2020-11-24 CN CN202022739802.8U patent/CN213601920U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114709462A (en) * | 2022-04-11 | 2022-07-05 | 江苏正力新能电池技术有限公司 | Battery module |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20220124 Address after: 215500 room 808, No. 1, Southeast Avenue, Changshu high tech Industrial Development Zone, Changshu, Suzhou, Jiangsu Patentee after: Jiangsu Zenergy Battery Technologies Co.,ltd Address before: 210000 No.15, Huashang Road, Airport Economic Development Zone, Jiangning District, Nanjing City, Jiangsu Province Patentee before: Jiangsu Tafel Power System Co.,Ltd. Patentee before: JIANGSU TAFEL NEW ENERGY TECHNOLOGY Co.,Ltd. Patentee before: DONGGUAN TAFEL NEW ENERGY TECHNOLOGY Co.,Ltd. |