CN105789505A - Power battery pack grouping structure - Google Patents
Power battery pack grouping structure Download PDFInfo
- Publication number
- CN105789505A CN105789505A CN201410825903.3A CN201410825903A CN105789505A CN 105789505 A CN105789505 A CN 105789505A CN 201410825903 A CN201410825903 A CN 201410825903A CN 105789505 A CN105789505 A CN 105789505A
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- Prior art keywords
- battery pack
- power battery
- block structure
- cells
- peripheral board
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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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- Battery Mounting, Suspending (AREA)
Abstract
The invention provides a power battery pack grouping structure, which comprises a battery pack formed by stacking a plurality of batteries, two end plates positioned at two ends of the battery pack in the stacking direction, a peripheral plate and a heat conducting pad, wherein the peripheral plate is provided with a plurality of through holes; the peripheral plate is an integrated part and wraps the bottom surface and two side surfaces of the battery pack; the heat conducting pad is located between the bottom surface of the battery pack and the peripheral plate. Compared with the prior art, the power battery pack unitized structure integrates the functions of the bottom plate and the two side plates in the existing design by using the integrated peripheral plates, thereby not only solving the problem that the medium potential in the electric box is not suitable for realization due to the independence of the side plates and the bottom plate in the prior art, but also improving the strength of the battery pack unitized structure and solving the problem of insufficient vibration resistance of the battery pack unitized structure.
Description
Technical field
The present invention relates to power battery pack field, more particularly, it relates to a kind of power battery pack block structure.
Background technology
Owing to environmental energy problem is increasingly severe, low-carbon environment-friendly performance source has become as the inevitable choice of economic development, as hybrid vehicle and the electric automobile of new-energy automobile representative, has also progressively developed and obtained the accreditation of consumer and the support of government.Electrokinetic cell module is the major impetus source of new-energy automobile, is also critical piece and the key technology of electric automobile.
It is modularization assembling that electrokinetic cell module applies most distinguishing feature in the field such as electric motor car and energy-accumulating power station, is namely dressed up set of cells by a lot of set of cells, more multiple set of cells series/parallels are assembled into battery modules.Therefore, cost and reliability design are piths in battery modules design.
Referring to Fig. 1, the block structure of existing dynamical lithium-ion battery packs includes set of cells 10, end plate 12, side plate 14, double-component heat-conducting glue 16 and base plate 18；Set of cells 10 is formed by multiple cell stacks, and end plate 12, side plate 14, base plate 18 are welded to one another and form the structure for self-contained battery group 10, and double-component heat-conducting glue 16 is between the bottom surface of base plate 18 and set of cells 10.But, the block structure of existing set of cells at least has the following disadvantages, so that seriously constraining the competitiveness of set of cells: 1) and side plate 14 is independent of one another with base plate 18, and not only increase material and assembly cost, and be unfavorable for the realization of electronic box medium potential；Power battery pack block structure 2) heat-conducting glue 16 is bi-component AB glue, not only price is high, utilization rate is extremely low, and needs the automatic double surface gluer of costliness, glue curing equipment to carry out operation realization；3) anti-seismic performance of set of cells block structure is not good.
In view of this, necessary offer a kind of low cost, high performance power battery pack block structure.
Summary of the invention
It is an object of the invention to: a kind of low cost, high performance power battery pack block structure are provided.
To achieve these goals, the invention provides a kind of power battery pack block structure, it includes set of cells and two end plates being positioned at two ends, battery stacks direction that multiple cell stacks is formed, and also includes peripheral board and heat conductive pad；The integrated part of peripheral board, its bottom surface encasing set of cells and two sides；Heat conductive pad is between set of cells bottom surface and peripheral board.
As a kind of improvement of power battery pack block structure of the present invention, described heat conductive pad is the adhesive type heat conductive pad being made from a material that be thermally conductive.
As a kind of improvement of power battery pack block structure of the present invention, the three folding metallic plates that described peripheral board is integrated, it includes two side plates and a base plate being vertically connected between two side plates.
As a kind of improvement of power battery pack block structure of the present invention, described heat-conducting plate is pasted onto the inner side of peripheral board, plays conductive force between set of cells bottom surface and peripheral board base plate.
As a kind of improvement of power battery pack block structure of the present invention, described peripheral board and two end plates are welded to connect, and realize the fixing of set of cells together.
As a kind of improvement of power battery pack block structure of the present invention, the thickness of described peripheral board is 0.1～10mm.
As a kind of improvement of power battery pack block structure of the present invention, the thickness of described heat conductive pad is 0.01mm～20mm.
As a kind of improvement of power battery pack block structure of the present invention, described end plate is metal end plate.
As a kind of improvement of power battery pack block structure of the present invention, the battery of described set of cells is lithium ion battery, Ni-MH battery or Ni-Cr battery.
Compared with prior art, power battery pack block structure of the present invention uses the peripheral board of integration to be integrated with in existing design the function of base plate and biside plate, both prior art latus inframedium problem of implementation unsuitable with the electronic box medium potential that base plate independently causes had been solved, improve again the intensity of set of cells block structure, solve the difficult problem that its resistance to shock is not enough.
Accompanying drawing explanation
Below in conjunction with the drawings and specific embodiments, power battery pack block structure of the present invention and Advantageous Effects thereof are described in detail, wherein:
Fig. 1 is the perspective exploded view of existing power battery pack block structure；
Fig. 2 is the perspective exploded view of power battery pack block structure of the present invention；
Fig. 3 is the other direction view of the peripheral board of power battery pack block structure of the present invention.
Detailed description of the invention
In order to make the purpose of the present invention, technical scheme and Advantageous Effects become apparent from understanding, below in conjunction with the drawings and specific embodiments, the present invention is further elaborated.It should be appreciated that the detailed description of the invention described in this specification is only used to explain the present invention, it is not intended to limit the present invention.
Refer to Fig. 2 and Fig. 3, the invention provides a kind of power battery pack block structure, it includes set of cells 32, peripheral board 34 of 30, two end plates and one piece of heat conductive pad 36.
Set of cells 30 is stacked gradually by multiple batteries and forms, and two end plates 32 lay respectively at the two ends of set of cells 30 stacking direction.Two end plates 32 are metal end plate.
The three folding metallic plates that peripheral board 34 is integrated, including two side plates 340 and a base plate being vertically connected between two side plates 340 342, are used for encasing the bottom surface of set of cells 30 and two sides.The thickness of peripheral board 34 is preferably 0.1～10mm.
Heat conductive pad 36 is adhesive type heat conductive pad, and it is made from a material that be thermally conductive, and thickness is preferably 0.01mm～20mm.Heat conductive pad 36 is pasted onto inside the base plate 342 of peripheral board 34, plays conductive force between the base plate 342 of set of cells 30 bottom surface and peripheral board 34, to guarantee the set of cells 30 effectiveness from bottom heat radiation.
During assembling; first it is posted on inside the base plate 342 of peripheral board 34 by viscous for adhesive type heat conductive pad 36; two end plates 32 are arranged on the two ends of set of cells 30; again the set of cells 30 with end plate 32 is inserted in peripheral board 34; adhesive type heat conductive pad 36 is close in the bottom making set of cells 10; finally peripheral board 34 and two metal end plates 32 are welded to connect, it is achieved the fixing and protection of set of cells 30.
Compared with prior art, power battery pack block structure of the present invention uses the peripheral board of integration to be integrated with in existing design the function of base plate 18 and biside plate 14, and utilize adhesive type heat conductive pad 36 to instead of bi-component AB glue that is expensive and that need coating, therefore at least have the advantage that
1) peripheral board 34 of integration solves prior art latus inframedium 14 problem of implementation unsuitable with the electronic box medium potential that base plate 18 independently causes, improves the intensity of set of cells block structure simultaneously, solves the difficult problem that its resistance to shock is not enough；
2) peripheral board 34 of integration decreases number of parts, advantageously reduces material cost；
3) adhesive type heat conductive pad 36 replaces the bi-component AB glue of costliness, effectively reduces Material Cost；
4) structure optimization makes the assembling procedure of set of cells block structure greatly simplified, eliminate the operations such as base plate assembling, bi-component AB glue gluing, glue curing baking, while saving manufacturing cost, shorten the production time of set of cells so that production efficiency is greatly improved.
In sum, power battery pack block structure of the present invention has that reliability height, cost be low, simple for assembly process, efficiency high.
It should be noted that power battery pack block structure of the present invention can be applied in projects such as having the electric motor car of battery, hybrid electric vehicle, energy-accumulating power station, the battery in its set of cells 30 is preferably lithium ion battery but it also may be ni-mh, Ni-Cr battery.
According to above-mentioned principle, above-mentioned embodiment can also be carried out suitable change and amendment by the present invention.Therefore, the invention is not limited in detailed description of the invention disclosed and described above, should also be as some modifications and changes of the present invention falling in the scope of the claims of the present invention.Although additionally, employ some specific terms in this specification, but these terms are intended merely to convenient explanation, and the present invention does not constitute any restriction.
Claims (9)
1. a power battery pack block structure, it includes set of cells and two end plates being positioned at two ends, battery stacks direction that multiple cell stacks is formed；It is characterized in that: also include peripheral board and heat conductive pad；The integrated part of peripheral board, its bottom surface encasing set of cells and two sides；Heat conductive pad is between set of cells bottom surface and peripheral board.
2. power battery pack block structure according to claim 1, it is characterised in that: described heat conductive pad is the adhesive type heat conductive pad being made from a material that be thermally conductive.
3. power battery pack block structure according to claim 2, it is characterised in that: the three folding metallic plates that described peripheral board is integrated, it includes two side plates and a base plate being vertically connected between two side plates.
4. power battery pack block structure according to claim 3, it is characterised in that: described heat-conducting plate is pasted onto the inner side of peripheral board, plays conductive force between set of cells bottom surface and peripheral board base plate.
5. power battery pack block structure according to claim 1, it is characterised in that: described peripheral board and two end plates are welded to connect, and realize the fixing of set of cells together.
6. power battery pack block structure according to any one of claim 1 to 5, it is characterised in that: the thickness of described peripheral board is 0.1～10mm.
7. power battery pack block structure according to any one of claim 1 to 5, it is characterised in that: the thickness of described heat conductive pad is 0.01mm～20mm.
8. power battery pack block structure according to any one of claim 1 to 5, it is characterised in that: described end plate is metal end plate.
9. power battery pack block structure according to any one of claim 1 to 5, it is characterised in that: the battery of described set of cells is lithium ion battery, Ni-MH battery or Ni-Cr battery.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410825903.3A CN105789505A (en) | 2014-12-25 | 2014-12-25 | Power battery pack grouping structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410825903.3A CN105789505A (en) | 2014-12-25 | 2014-12-25 | Power battery pack grouping structure |
Publications (1)
| Publication Number | Publication Date |
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| CN105789505A true CN105789505A (en) | 2016-07-20 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410825903.3A Pending CN105789505A (en) | 2014-12-25 | 2014-12-25 | Power battery pack grouping structure |
Country Status (1)
| Country | Link |
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| CN (1) | CN105789505A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107195834A (en) * | 2017-07-25 | 2017-09-22 | 江苏万达新能源科技股份有限公司 | A kind of safe electrokinetic cell aluminum hull with shock-absorbing function |
| WO2020252846A1 (en) * | 2019-06-21 | 2020-12-24 | 比亚迪股份有限公司 | Power battery pack and vehicle |
| CN115207533A (en) * | 2019-07-04 | 2022-10-18 | 东风汽车集团有限公司 | Equipotential carbon fiber composite battery box and automobile |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107195834A (en) * | 2017-07-25 | 2017-09-22 | 江苏万达新能源科技股份有限公司 | A kind of safe electrokinetic cell aluminum hull with shock-absorbing function |
| WO2020252846A1 (en) * | 2019-06-21 | 2020-12-24 | 比亚迪股份有限公司 | Power battery pack and vehicle |
| CN115207533A (en) * | 2019-07-04 | 2022-10-18 | 东风汽车集团有限公司 | Equipotential carbon fiber composite battery box and automobile |
| CN115207533B (en) * | 2019-07-04 | 2023-07-14 | 东风汽车集团有限公司 | Equipotential carbon fiber composite material battery box and car |
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20160720 |
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| RJ01 | Rejection of invention patent application after publication |