CN209947879U - Soft package battery packaging structure - Google Patents
Soft package battery packaging structure Download PDFInfo
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- CN209947879U CN209947879U CN201920484946.8U CN201920484946U CN209947879U CN 209947879 U CN209947879 U CN 209947879U CN 201920484946 U CN201920484946 U CN 201920484946U CN 209947879 U CN209947879 U CN 209947879U
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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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Abstract
The utility model relates to a laminate polymer battery packaging structure, including laminate polymer battery core group, aluminium frame, heat insulating mattress, first buffering bubble cotton, division board, dress trim cover board, utmost point ear backup pad and sampling module. The soft package electric core group is arranged in the aluminum frame; the soft-package battery core group comprises a plurality of battery cells, second buffer foam and temperature equalizing units, the battery cells are sequentially arranged, the second buffer foam or the temperature equalizing units are arranged between every two adjacent battery cells, and the second buffer foam and the temperature equalizing units are arranged at intervals; a first buffer foam is arranged between the top of the soft package electric core group and the aluminum frame; heat-conducting glue in a solidified state is arranged between the bottom of the soft-package electric core group and the aluminum frame; heat insulation pads are arranged between the two sides of the soft package electric core group and the aluminum frame; compared with the prior art, the utility model can lead the battery cell to be fixed in the aluminum frame more closely, thus improving the stability and reliability; the energy density of the packaged battery pack is relatively high.
Description
Technical Field
The utility model relates to a battery packaging technology especially relates to a laminate polymer battery packaging structure.
Background
Compared with a cylindrical battery and a square battery, the soft package battery adopts a superposed manufacturing mode, so that the soft package battery is light in weight and large in capacity. In addition, the cell internal resistance of the soft package battery is relatively small, so that the energy density is large overall. In the aspect of safety performance, the soft package battery only swells at most and does not explode, is widely popular in vehicle enterprises in recent years, and becomes the mainstream of the lithium ion power battery for vehicles. However, the types of the soft package batteries in the current market are few, and the battery core development difficulty is high, so that the packaging structure of the soft package batteries does not have too many rules to follow.
As chinese utility model with publication number CN206236711U discloses a laminate polymer battery's packaging structure, simply uses metal casing to wrap up five electric cores, still has following problem: the parts inside the metal shell are not high in combination stability and are not firm in combination, and the metal shell can only be used for packaging a small number of battery cells. Fatigue stress of an automobile in the driving process easily causes the loosening of internal sub-parts, and serious results such as short circuit and even explosion can be caused under extreme conditions.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a laminate polymer battery packaging structure in order to overcome the defect that above-mentioned prior art exists.
The purpose of the utility model can be realized through the following technical scheme:
a soft package battery packaging structure comprises a soft package battery core group, an aluminum frame, a heat insulation pad, first buffer foam, a separation plate, a decorative cover plate, a tab supporting plate and a sampling module, wherein the soft package battery core group is arranged in the aluminum frame; the soft-packaged cell group comprises a plurality of cell cores, second buffer foam and temperature equalizing units, the cell cores are arranged in sequence, the second buffer foam or the temperature equalizing units are arranged between every two adjacent cell cores, and the second buffer foam and the temperature equalizing units are arranged at intervals.
A first buffer foam is arranged between the top of the soft package electric core group and the aluminum frame; heat-conducting glue is arranged between the bottom of the soft-package electric core group and the aluminum frame; heat insulation pads are arranged between the two sides of the soft package electric core group and the aluminum frame; the two ends of the soft-package battery core group and the aluminum frame are respectively provided with a separation plate, a decorative cover plate and a tab support plate from outside to inside in sequence; still be equipped with the watch-dog between the dress trim cover board of soft packet of electric core group one end and the utmost point ear backup pad, sampling module installs at aluminium frame top, and utmost point ear backup pad and watch-dog are connected respectively to the sampling unit.
Further, the aluminum frame comprises a frame upper cover, two frame side plates, two frame end plates and a frame bottom plate, wherein the frame bottom plate is U-shaped, two sides of the frame bottom plate are provided with a protection plate, the two frame side plates are arranged on the inner side of the protection plate, and the two frame end plates and the frame upper cover are connected with the protection plate.
Furthermore, the frame upper cover, the two frame end plates and the frame bottom plate are connected with each other through welding.
Further, the sampling module include FPC apron, FPC and insulating paper be located the upper surface of frame upper cover, FPC both ends connect utmost point ear backup pad and watch-dog respectively, FPC apron cover on FPC.
Furthermore, the isolation plate and the decorative cover plate are plastic plates.
Furthermore, the decorative cover plate, the monitor and the lug support plate are connected in sequence through bolts.
Further, the number of the battery cells is at least 10.
Furthermore, the temperature equalizing unit adopts a temperature equalizing graphite sheet.
Compared with the prior art, the utility model has the advantages of it is following:
1. the utility model discloses an increase the cotton and samming unit of second buffering bubble between per two electric cores, constitute soft-packaged electrical core group, set up heat insulating mattress, first buffering bubble cotton, division board and heat conduction glue etc. respectively about soft-packaged electrical core group simultaneously for electric core can more closely fix in the aluminium frame, promotes stability and reliability. The first buffer foam and the second buffer foam can relieve friction between the battery cores; the heat insulation pad and the isolation plate can isolate the heat of the battery cell and the aluminum frame; the temperature equalizing unit can equalize the temperature of each battery cell and prevent local overheating; can enough fix laminate polymer core group and frame bottom plate through heat conduction glue, can be convenient for the heat dissipation again, concentrate the discharge with laminate polymer battery's heat.
2. The utility model discloses cut apart into frame upper cover, two frame curb plates, two frame end plates and frame bottom plate with aluminium frame, the laminate polymer battery's of being convenient for installation and fixed, simultaneously, the frame bottom plate is the U type, and both sides are equipped with the intensity that adds the backplate further increase aluminium frame, can conduct the heat from the bottom to adding backplate and frame curb plate simultaneously, promote heat dispersion.
3. The utility model discloses compact structure, stability is high for can realize lightweight, miniaturization under the condition of ensureing to hold more electric core in the soft-packaged battery, thereby obtain higher energy density.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Reference numerals: 11. the frame comprises a frame upper cover, 12, frame side plates, 13, frame end plates, 14, a frame bottom plate, 141, a protection plate, 21, an FPC cover plate, 22, FPC, 23, insulating paper, 31, an electric core, 32, second buffer foam, 33, a temperature equalizing unit, 4, first buffer foam, 41, M3-18 bolts, 42, M3-6 bolts, 5, an isolation plate, 6, a decorative cover plate, 7, a lug support plate, 8, a monitor, 9, heat conducting glue, 10 and a heat insulation pad.
Detailed Description
The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments. The embodiment is implemented on the premise of the technical solution of the present invention, and a detailed implementation manner and a specific operation process are given, but the scope of the present invention is not limited to the following embodiments.
As shown in fig. 1, the present embodiment provides a pouch battery packaging structure, which includes a pouch battery core assembly and an aluminum frame, wherein the pouch battery core assembly is installed in the aluminum frame.
The soft-package battery core group comprises a plurality of battery cores 31, second buffer foam 32 and a temperature equalizing unit 33. The cell 31 adopts a VDA standard cell. The size of each cell 31 is: the length is 102.5mm plus or minus 1.5mm, the thickness is 11.4mm plus or minus 0.2mm, and the height is 308.5mm plus or minus 1.5 mm. The soft-package battery pack at least comprises 10 battery cells 31, in this embodiment, 12 battery cells 31 are adopted, and the battery cells form a power supply through series-parallel connection in a certain manner to supply power to the outside. The plurality of battery cells 31 are arranged in sequence, the second buffer foam 32 or the temperature equalizing unit 33 is arranged between two adjacent battery cells 31, and the second buffer foam 32 and the temperature equalizing unit 33 are arranged at intervals (for example, the battery cells 31, the temperature equalizing unit 33, the battery cells 31, the second buffer foam 32, the battery cells 31, the temperature equalizing unit 33, and the battery cells 31 … … are arranged in sequence). The temperature equalizing unit 33 is made of temperature equalizing graphite sheets, and can buffer friction between the battery cells 31, isolate heat between the battery cells 31 and an aluminum frame, and equalize the temperature of the 12 battery cells 31.
The aluminum frame is distributed outside the soft-package electric core group, and the overall size is limited, and the standard size is 355mm long, 151.5mm wide and 108.5mm high. The aluminum frame comprises a frame upper cover 11, two frame side plates 12, two frame end plates 13 and a frame bottom plate 14. The frame bottom plate 14 is U-shaped, and both sides are provided with a protection plate 141. The two frame side plates 12 are arranged on the inner side of the reinforced plate 141; the two frame end plates 13 are connected with the two sides of the protection plate 141; the frame upper cover 11 is connected with the top end of the reinforced plate 131. The frame upper cover 11, the two frame end plates 13 and the frame bottom plate 14 are all connected with each other by welding.
The sampling device further comprises a heat insulation pad 10, first buffer foam 4, a separation plate 5, a decorative cover plate 6, a tab supporting plate 7 and a sampling module. A first buffer foam 4 is arranged between the top of the soft package battery pack and the upper frame cover 11; heat-conducting glue 9 is arranged between the bottom of the soft-package electric core group and the frame bottom plate 14, and the heat-conducting glue 9 is not solidified to form a plate shape in the figure; a heat insulation pad 10 is arranged between the two sides of the soft package electric core group and the frame side plate 12; and the two ends of the soft-package battery pack and the frame end plate 13 are respectively provided with a separation plate 5, a decorative cover plate 6 and a tab support plate 7 from outside to inside in sequence.
A monitor 8 is also arranged between the decorative cover plate 6 at one end of the soft-package battery pack and the pole lug support plate 7. The decorative cover plate 6, the monitor 8 and the tab support plate 7 are connected sequentially by bolts. The partition board 5 and the decorative cover board 6 are plastic boards, and mainly play a role in protecting electronic components such as the monitor 8 and the like and play an insulating role.
The sampling module is mainly used for collecting the temperature and the voltage of the battery cell 31. The sampling module is mounted on the top of the aluminum frame and comprises an FPC cover plate 21, an FPC (flexible printed circuit) 22 and insulating paper 23. The FPC22 and the insulating paper 23 are located on the upper surface of the frame upper cover 11.
The two ends of the FPC22 are respectively connected with the tab supporting plate 7 and the monitor 8 at the two ends of the soft-package electric core group, and the FPC cover plate 21 covers the FPC 22. The monitor 8 is used for summarizing and calculating collected data (including temperature and voltage), and physical signals are converted into electric signals and transmitted to an external control part.
The installation steps of this embodiment are:
put electric core 31 and carry out die-cut preparation work on corresponding die-cut equipment, accomplish the back, pile up die-cut electric core 31 and second buffering bubble cotton 32, soaking unit 33, heat insulating mattress 10 according to the above order, use glue in the middle of it bonds, bond frame curb plate 12 at outermost both sides heat insulating mattress 10.
And (3) uniformly coating the glue heat-conducting glue 9 on the inner side of the bottom of the frame bottom plate 14 by using an automatic glue coating machine, and before the heat-conducting glue 9 is solidified, integrally placing the stacked soft package battery core groups into the inner side of the U-shaped part of the frame bottom plate 14 and placing the soft package battery core groups into corresponding parts in the frame bottom plate 14.
The first buffer foam 4 is placed above the stacked soft package electric core group, the frame upper cover 11 is covered, the insulating paper 23 is installed on the frame upper cover 11, the FPC22 is installed on the insulating paper 23, and the FPC cover plate 21 is clamped into the frame upper cover 11 to fix the FPC 22.
Two tab supporting plates 7 are arranged from two sides, the tab supporting plates 7 are provided with a buckling structure and are clamped into the frame side plate 12, and tabs of the battery cell 31 and copper plates on the tab supporting plates 7 are welded.
Then, the two side isolation plates 5 clamp the tab support plates 7 for preliminary positioning, and the decorative cover plate 6 is clamped into the frame end plate 13. And a monitor 8 is placed between the lug support plate 7 and the decorative cover plate 6 at one end of the soft-package electric core group. Using one M3-18 bolt 41 to connect the cosmetic cover plate 6, the monitor 8 and the tab support plate 7; two M3-6 bolts 42 are used to connect the frame end plate 13, the separator plate 5, the cosmetic cover plate 6, the monitor 8 and the tab support plate 7.
Finally, the welding of the frame end plate 13 and the frame bottom plate 14 and the frame top cover 11 and the frame bottom plate 14 is performed, requiring the welding seam of the frame end plate 13 and the frame bottom plate 14 to be >78mm and the welding seam of the frame top cover 11 and the frame bottom plate 14 to be >295 mm.
The foregoing has described in detail preferred embodiments of the present invention. It should be understood that numerous modifications and variations can be devised by those skilled in the art in light of the teachings of the present invention without undue experimentation. Therefore, the technical solutions that can be obtained by a person skilled in the art through logic analysis, reasoning or limited experiments based on the prior art according to the concepts of the present invention should be within the scope of protection defined by the claims.
Claims (8)
1. The soft package battery packaging structure comprises a soft package battery core group and an aluminum frame, and is characterized by further comprising a heat insulation pad (10), first buffer foam (4), a partition plate (5), a decorative cover plate (6), a tab supporting plate (7) and a sampling module, wherein the soft package battery core group is arranged in the aluminum frame; the soft-package battery core group comprises a plurality of battery cells (31), second buffer foam (32) and temperature equalizing units (33), the battery cells (31) are sequentially arranged, the second buffer foam (32) or the temperature equalizing units (33) are arranged between every two adjacent battery cells (31), and the second buffer foam (32) and the temperature equalizing units (33) are arranged at intervals;
a first buffer foam (4) is arranged between the top of the soft package electric core group and the aluminum frame; a heat-conducting glue (9) is arranged between the bottom of the soft-package electric core group and the aluminum frame; a heat insulation pad (10) is arranged between the two sides of the soft package electric core group and the aluminum frame; the two ends of the soft-package battery core group and the aluminum frame are respectively provided with a separation plate (5), a decorative cover plate (6) and a tab support plate (7) from outside to inside in sequence; still be equipped with watch-dog (8) between dress trim cover board (6) and utmost point ear backup pad (7) of soft packet of electric core group one end, sampling module installs at aluminium frame top, and utmost point ear backup pad (7) and watch-dog (8) are connected respectively to the sampling unit.
2. The soft-package battery packaging structure of claim 1, wherein the aluminum frame comprises an upper frame cover (11), two frame side plates (12), two frame end plates (13) and a bottom frame plate (14), the bottom frame plate (14) is U-shaped, two sides of the bottom frame plate are provided with the reinforced plate (141), the two frame side plates (12) are mounted on the inner side of the reinforced plate (141), and the two frame end plates (13) and the upper frame cover (11) are both connected with the reinforced plate (141).
3. The laminate battery packaging structure according to claim 2, wherein the frame upper cover (11), the two frame end plates (13) and the frame bottom plate (14) are all connected with each other by welding.
4. The laminate battery packaging structure of claim 2, wherein the sampling module comprises an FPC cover plate (21), an FPC (22) and an insulating paper (23), the FPC (22) and the insulating paper (23) are positioned on the upper surface of the frame upper cover (11), two ends of the FPC (22) are respectively connected with the tab supporting plate (7) and the monitor (8), and the FPC cover plate (21) covers the FPC (22).
5. The soft package battery packaging structure of claim 1, wherein the isolation plate (5) and the decorative cover plate (6) are plastic plates.
6. The soft package battery packaging structure according to claim 1, wherein the decorative cover plate (6), the monitor (8) and the tab support plate (7) are sequentially connected through bolts.
7. The laminate battery packaging structure according to claim 1, wherein the battery cell (31) is at least 10 sheets.
8. The laminate battery packaging structure according to claim 1, wherein the temperature equalizing unit (33) is made of a temperature equalizing graphite sheet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920484946.8U CN209947879U (en) | 2019-04-11 | 2019-04-11 | Soft package battery packaging structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920484946.8U CN209947879U (en) | 2019-04-11 | 2019-04-11 | Soft package battery packaging structure |
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| Publication Number | Publication Date |
|---|---|
| CN209947879U true CN209947879U (en) | 2020-01-14 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920484946.8U Active CN209947879U (en) | 2019-04-11 | 2019-04-11 | Soft package battery packaging structure |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111293252A (en) * | 2020-03-26 | 2020-06-16 | 江西优特汽车技术有限公司 | Soft packet of lithium cell module that practicality is strong |
| CN111370611A (en) * | 2020-03-17 | 2020-07-03 | 天津市捷威动力工业有限公司 | Power battery module |
| CN112054144A (en) * | 2020-09-23 | 2020-12-08 | 上海兰钧新能源科技有限公司 | Soft package module and electric vehicle |
| CN112864491A (en) * | 2021-01-27 | 2021-05-28 | 福建易动力电子科技股份有限公司 | Soft-packaged battery cell module |
| CN113659275A (en) * | 2021-08-20 | 2021-11-16 | 捷威动力工业江苏有限公司 | Soft packet of lithium ion power battery module structure |
| CN113675517A (en) * | 2021-08-20 | 2021-11-19 | 重庆超米新能源有限公司 | Power lithium battery pack |
| WO2021253334A1 (en) * | 2020-06-18 | 2021-12-23 | 东莞新能安科技有限公司 | Battery pack having pressure relief structure |
| WO2024016876A1 (en) * | 2022-07-21 | 2024-01-25 | 中国第一汽车股份有限公司 | Solid-state battery module |
-
2019
- 2019-04-11 CN CN201920484946.8U patent/CN209947879U/en active Active
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111370611A (en) * | 2020-03-17 | 2020-07-03 | 天津市捷威动力工业有限公司 | Power battery module |
| CN111293252A (en) * | 2020-03-26 | 2020-06-16 | 江西优特汽车技术有限公司 | Soft packet of lithium cell module that practicality is strong |
| WO2021253334A1 (en) * | 2020-06-18 | 2021-12-23 | 东莞新能安科技有限公司 | Battery pack having pressure relief structure |
| CN112054144A (en) * | 2020-09-23 | 2020-12-08 | 上海兰钧新能源科技有限公司 | Soft package module and electric vehicle |
| CN112864491A (en) * | 2021-01-27 | 2021-05-28 | 福建易动力电子科技股份有限公司 | Soft-packaged battery cell module |
| CN113659275A (en) * | 2021-08-20 | 2021-11-16 | 捷威动力工业江苏有限公司 | Soft packet of lithium ion power battery module structure |
| CN113675517A (en) * | 2021-08-20 | 2021-11-19 | 重庆超米新能源有限公司 | Power lithium battery pack |
| WO2024016876A1 (en) * | 2022-07-21 | 2024-01-25 | 中国第一汽车股份有限公司 | Solid-state battery module |
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