CN202749437U - Partition plate used for battery pack and lithium battery pack adopting same - Google Patents
Partition plate used for battery pack and lithium battery pack adopting same Download PDFInfo
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- CN202749437U CN202749437U CN2012203548476U CN201220354847U CN202749437U CN 202749437 U CN202749437 U CN 202749437U CN 2012203548476 U CN2012203548476 U CN 2012203548476U CN 201220354847 U CN201220354847 U CN 201220354847U CN 202749437 U CN202749437 U CN 202749437U
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- lithium
- battery
- battery array
- brace
- partition plate
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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 partition plate (1) used for a battery pack. The partition plate is characterized by being of a fully-symmetrical structure, wherein the fully-symmetrical structure comprises a fully-symmetrical platy substrate (2) and a buckle structure (3), and the buckle structure is arranged on the substrate in a fully-symmetrical manner and is used for fixing and positioning a connection sheet for electrically connecting adjacent batteries. The utility model further relates to a lithium battery pack adopting the partition plate which is characterized by comprising a plurality of lithium single batteries, wherein the connection sheet for electrically connecting the two adjacent batteries, and the partition plate arranged between the two adjacent batteries; and the buckle structure of the partition plate is buckled and fixed with the connection sheet. The partition plate adopts the fully-symmetrical design concept, installation errors can be avoided no matter in case of forward installation or backward installation, and the installation confirmation time is reduced. Moreover, the partition plate is additionally provided with the buckle structure used for fixing and positioning the connection sheet electrically connecting the adjacent batteries, thereby enhancing the safety and the durability.
Description
Technical field
The utility model relates generally to battery array separator and has adopted the lithium battery group of this dividing plate.
Background technology
In recent years, along with the development of electronic product, to constantly improving as the driving of these electronic products requirement with the battery of power supply, the production technologies such as the syndeton of the performances such as fail safe of battery, battery and production efficiency are being carried out various researchs always.
Because lithium battery group (Li Pack) has that volume is little, capacity is high, easy to use and carry, characteristic that can repeated charge, along with the development of electronic product, the lithium battery group obtains fast development (such as battery of mobile phone, camera battery, MP3 etc.).The lithium battery group comprises lithium monocell, control circuit, connecting line, connector and over cap, and wherein the lithium monocell is the device that chemical energy is converted into electric energy by the chemical reaction between the both positive and negative polarity.Along with user's long-term use, the user has higher requirement: higher capacity, higher power, less volume, higher fail safe.In view of present stage scientific and technological level limitation, the capacitance density of lithium battery group does not significantly improve.So when pursuing small size, normal employing increases the quantity of monocell when the lithium battery group designs, thereby reaches the purpose that improves the lithium battery pool-size, but cause the residual space between the lithium battery group internal component to reduce.Because the particularity of lithium battery group, lithium monocell are in use, As time goes on, volume can increase to some extent.The short circuit because contact for fear of lithium battery group internal component under the prerequisite that does not affect the lithium battery packet size, is being used the battery separator of the insulation of solid to separate, thereby is being guaranteed the safety of lithium battery group between the monocell, between the components and parts.
A kind of partition plate for lithium battery pack is disclosed among the patent documentation CN201219116Y, comprise a body, it is characterized in that: be respectively equipped with the stitching section that is consisted of by a plurality of projections or groove at least one pair of symmetrical side of described body, wherein, described stitching section on one side be with another side on the stitching section be mutual clamping coupling shape, utilize on the side the stitching section can with another body phase clamping, select the body of right quantity to splice according to the size of battery component, realize the versatility of dividing plate injection moulding, reduce production costs.
A kind of temperature controlled Li-ion battery group is disclosed among the patent documentation CN201576715U, the shell that comprises upper end open, enclosure is provided with the polylith dividing plate, the adjacent battery core that is provided with dividing plate, lug on the battery core links to each other with negative terminal with positive terminal on the cover plate that is located at the shell aperture place by the lug connector, and the battery core of dividing plate both sides is electrically connected by the battery core connector; Described shell is provided with a plurality of liquid communication hole, the two ends in liquid communication hole communicate with liquid input tube road and liquid output pipe road respectively, in the liquid communication hole, pass into hot water or cold water, to improve temperature or the heat dispersion of battery case, the temperature of lithium battery can be controlled at 20～45 ℃, be conducive to normally carrying out of electrochemical reaction, improve the stability that lithium battery uses.
There is following problems in existing battery array separator: need to confirm direction during installation, the set-up time is longer; In case the direction setup error causes parts to scrap after the welding, cause job requirements high; The brace poor location is prone to a little inclined to one side situation; The battery shockproof poor-performing is prone to brace perk, fracture etc.
Fig. 5 (a) is the structural representation of the battery array separator of prior art, Fig. 5 (b) is that the described dividing plate of Fig. 5 (a) is applied in the schematic diagram in the battery pack, Fig. 5 (c) be used in the battery pack shown in Fig. 5 (b) to adjacent cell between the schematic diagram of the brace that the is electrically connected problem that may exist.
The utility model content
The purpose of this utility model is to solve above-mentioned problem, battery array separator and the lithium battery group that has adopted this dividing plate with a kind of full symmetrical configuration are provided, this dividing plate has adopted holosymmetric design concept, no matter install forward or backwards, the situation that setup error can not occur, acknowledging time reduce to be installed, and this dividing plate increased be used for to adjacent cell between the brace that the is electrically connected buckle structure that is fixed and locates, thereby increased fail safe and durability.
In order to achieve the above object, designer of the present utility model has obtained following technical scheme through meticulous research.
(1), a kind of battery array separator, it is characterized in that, described battery array separator is full symmetrical configuration, its comprise holosymmetric tabular substrate and holohedral symmetry ground on this substrate being used for of arranging to adjacent cell between the brace that the is electrically connected buckle structure that is fixed and locates.
(2), according to above-mentioned (1) described battery array separator, it is characterized in that the core of described substrate is hollow.
(3), according to above-mentioned (2) described battery array separator, it is characterized in that the thickness of described substrate diminishes to the center gradually from the neighboring, thereby form gradient.
(4), according to above-mentioned (1) described battery array separator, it is characterized in that, be provided with groove or perforate on the described substrate.
(5), according to each described battery array separator of above-mentioned (1)～(4), it is characterized in that described substrate and described buckle structure are integrated.
(6), according to each described battery array separator of above-mentioned (1)～(4), it is characterized in that the thickness of described substrate is 2mm～5mm.
(7), according to each described battery array separator of above-mentioned (1)～(4), it is characterized in that the width of described groove or perforate is 0.3mm～2mm.
(8), according to above-mentioned (2) described battery array separator, it is characterized in that described core is circular or square.
(9), a kind of lithium battery group, it is characterized in that, comprise: a plurality of lithium monocells, the brace that adjacent two lithium monocells are electrically connected and above-mentioned (1)～(8) between adjacent two the lithium monocells dividing plate described in each, the buckle structure of wherein said brace and described dividing plate carries out buckle to be fixed.
(10), according to the described lithium battery group of claim (9), it is characterized in that the brace that adjacent two lithium monocells are electrically connected is welded on respectively on the electrode of described two lithium monocells identical polar separately.
(11), according to above-mentioned (9) or (10) described lithium battery group, it is characterized in that it is lithium ion secondary batteries.
According to above-mentioned battery array separator, owing to adopted full symmetrical configuration, no matter install forward or backwards, the situation that setup error can not occur, reduce acknowledging time is installed, and this dividing plate increased be used for to adjacent cell between the brace that the is electrically connected buckle structure that is fixed and locates, avoided the perk of brace, reduced the point that occurs when brace carried out spot welding and connect partially and the quick-fried unfavorable condition of point, though the battery strenuous vibration, because the restriction of buckle structure is arranged, brace can perk yet, reduce the generation of brace fracture situation, improved the anti-seismic performance of battery, also increased the fail safe of assembling and spot welding simultaneously.
Description of drawings
Fig. 1 is the structural representation of the battery array separator of an execution mode of the present utility model.
Fig. 2 (a) is the schematic diagram that buckle structure in the described dividing plate of Fig. 1 and brace are fixed and locate, and Fig. 2 (b) is the front view of wanting section (displaying ratio of section K is 1: 1) of the section K after the dissecing along the K-K line of dividing plate of Fig. 2 (a).
Fig. 3 is that the battery array separator of an execution mode of the present utility model is applied in the schematic diagram in the lithium battery group, and wherein Fig. 3 (a) is the view of seeing from negative side, and Fig. 3 (b) is the view of seeing from side of the positive electrode.
Fig. 4 is the schematic perspective view of the lithium battery group of an execution mode of the present utility model, and wherein Fig. 4 (a) is the view of seeing from negative side, and Fig. 4 (b) is the view of seeing from side of the positive electrode.
Fig. 5 (a) is the structural representation of the battery array separator of prior art, Fig. 5 (b) is that the described dividing plate of Fig. 5 (a) is applied in the schematic diagram in the battery pack, and Fig. 5 (c) is the schematic diagram of the problem that brace may exist in the battery pack shown in Fig. 5 (b).
Embodiment
Below, with reference to accompanying drawing execution mode of the present utility model is described.In the accompanying drawings, for the purpose of simplifying the description, the constitutive requirements with identical in fact function are represented with same reference symbol.In addition, the utility model is not limited to following execution mode.
The utility model relates to a kind of battery array separator, and it is full symmetrical configuration, its comprise holosymmetric tabular substrate and holohedral symmetry ground on this substrate being used for of arranging to adjacent cell between the brace that the is electrically connected buckle structure that is fixed and locates.Wherein, so-called holohedral symmetry refers to, all is axisymmetric three of X, Y and Z on axially.
Fig. 1 is the structural representation of the dividing plate of an execution mode of the present utility model.
As shown in Figure 1, battery array separator 1 is full symmetrical configuration, its comprise holosymmetric tabular substrate 2 and holohedral symmetry ground on this substrate 2 being used for of arranging to adjacent cell between the brace that the is electrically connected buckle structure 3 that is fixed and locates.In order to save material, reduce weight and cost, and effectively heat radiation, what the core 4 of aforesaid substrate 2 can be for hollow, this core can be circular or square.Aforementioned barriers is in order to cooperate with the adjacent cell body better, can make the thickness of aforesaid substrate assign to core from outer peripheral portion changes, for example diminish gradually to the center from the neighboring, thereby formation gradient, also can corresponding structure be set at aforesaid substrate, for example groove or perforate.And, in order to save material, reduce weight and cost, also the structures such as a plurality of grooves or perforate can be set at aforesaid substrate.And, be full symmetrical configuration because require aforementioned barriers, so also to require be holosymmetric in the distributions of structure on substrate such as above-mentioned groove or perforate.Consider that from the viewpoint of the intensity that keeps fully dividing plate the width of above-mentioned groove or perforate is preferably 0.3mm～2mm.
Above-mentioned battery array separator preferably is made of one piece by aforesaid substrate and above-mentioned buckle structure, for example can be undertaken one-body molded by mold shaping method, injection molding forming method, can adopt like this with the almost identical technique of prior art and come moulding, basically can not increase cost.
In the utility model, the major function of above-mentioned battery array separator is to prevent from being short-circuited between the battery and so that the fixing and location between the battery is more firm, the fail safe of collateral security battery and durability.Those materials that the raw material of aforementioned barriers can adopt battery insulation sheet and slider etc. usually to adopt, as long as can reach desired insulation property, heat-resisting and anti-flammability and intensity, but because battery pack will be transported to all over the world by variety of way, so satisfy corresponding laws and regulations requirement, such as the UL requirement.Comprehensive above-mentioned each side considers that preferred aforementioned barriers is made by polymeric materials such as Merlon.In addition, there is no particular limitation for the thickness of substrate, but consider that from the convenience of maintenance intensity and buckle structure setting and with the coupling of other parts the thickness of substrate is preferably 2mm～5mm.As mentioned above, the thickness of aforesaid substrate is assigned to core from outer peripheral portion and can be changed, and for example diminishes gradually to the center from the neighboring, thereby forms gradient.
Fig. 2 (a) is the schematic diagram that buckle structure 3 and the brace 6 in the described dividing plate of Fig. 1 is fixed and locates, and Fig. 2 (b) is the front view of wanting section (displaying ratio of section K is 1: 1) of the section K after the dissecing along the K-K line of dividing plate of Fig. 2 (a).Wherein, among Fig. 2 (b) the part with dashed lines frames such as hollow space 4 are elliptically represented, only show two holosymmetric limit sections.
In battery pack, be used for to adjacent cell between the both ends of the brace 6 that is electrically connected are the electrode terminals that are welded on respectively adjacent two batteries by spot welding etc.Buckles occur in the mid portion outside the both ends of above-mentioned brace 6 and the buckle structure in the battery array separator 3, thereby are fixed and locate.
Fig. 3 is that the battery array separator of an execution mode of the present utility model is applied in the schematic diagram in the lithium battery group, and wherein Fig. 3 (a) is the view of seeing from negative side, and Fig. 3 (b) is the view of seeing from side of the positive electrode.
Shown in Fig. 3 (a) and Fig. 3 (b), with one or more braces 6 negative terminal of adjacent two batteries is linked to each other, with one or more braces 6 positive terminal of adjacent two batteries is linked to each other, thereby so that adjacent two batteries are realized in parallel and the formation battery pack.
The structure of above-mentioned buckle structure 3, shape and configuration are according to determining aptly with structure, shape and the configuration of battery, dividing plate and above-mentioned brace 6.
The structure of above-mentioned brace 6, shape and configuration are determined aptly according to the aspects such as technique, streaming request and snaps into position that are welded to connect.
Battery array separator of the present utility model is owing to adopt holosymmetric structure, and the buckle structure in this dividing plate also is full symmetrical configuration, no matter installs forward or backwards, the situation of setup error can not occur, reduces acknowledging time is installed.And, after above-mentioned buckle structure is fixed and locates above-mentioned brace, avoided the perk of brace, reduced the point that occurs when brace carried out spot welding and connect partially and the quick-fried unfavorable condition of point, though the battery strenuous vibration, because the restriction of buckle structure is arranged, brace can perk yet, reduce the generation of brace fracture situation, improved the anti-seismic performance of battery, also increased the fail safe of assembling and spot welding simultaneously.
The utility model also relates to a kind of lithium battery group, it comprises a plurality of lithium monocells, to brace and the aforementioned barriers between adjacent two lithium monocells that adjacent two lithium monocells are electrically connected, the buckle structure of aforementioned barriers is fixed and locates above-mentioned brace.Preferably, in above-mentioned lithium battery group, the brace that adjacent two lithium monocells are electrically connected is welded on respectively on the electrode of described two lithium monocells identical polar separately, and above-mentioned a plurality of lithium monocell is together in parallel thus.
Fig. 4 is the schematic perspective view of the lithium battery group of an execution mode of the present utility model, and wherein Fig. 4 (a) is the view of seeing from negative side, and Fig. 4 (b) is the view of seeing from side of the positive electrode.As shown in Figure 4, a plurality of lithium monocells 10 are overlapping across dividing plate 1 between separately, and by one or more braces 6 these lithium monocells are together in parallel, thereby obtain lithium battery group 11.So-called parallel connection refers to, by a plurality of lithium monocells 10 negative pole separately is welded to connect by one or more braces 6, a plurality of lithium monocells 10 positive pole separately is welded to connect by one or more braces 6, so just a plurality of lithium monocells 10 is together in parallel.Certainly according to the actual needs, also a plurality of lithium monocells can be together in series, form the lithium battery group.The structure of above-mentioned buckle structure 3, shape and configuration are according to determining aptly with structure, shape and the configuration of battery, dividing plate and above-mentioned brace 6.The structure of above-mentioned brace 6, shape and configuration are determined aptly according to the aspects such as technique, streaming request and snaps into position that are welded to connect.
In the utility model, above-mentioned battery pack can be the various battery pack such as lithium ion battery, Ni-MH battery, but is preferably lithium ion secondary batteries.
In addition, in Fig. 1～4, although show battery and dividing plate is square, according to the actual needs, also can be other shape.
Other advantage of the present utility model and improvement will be that those skilled in the art expect easily, thereby scope of the present utility model is not limited by above-mentioned typical example and concrete details.Therefore, in the spirit or scope that do not deviate from the defined total inventive concept by appending claims and its equivalent, the utility model can carry out various improvement.
Claims (11)
1. battery array separator, it is characterized in that, described battery array separator is full symmetrical configuration, its comprise holosymmetric tabular substrate and holohedral symmetry ground on this substrate being used for of arranging to adjacent cell between the brace that the is electrically connected buckle structure that is fixed and locates.
2. battery array separator according to claim 1 is characterized in that, the core of described substrate is hollow.
3. battery array separator according to claim 2 is characterized in that, the thickness of described substrate diminishes to the center gradually from the neighboring, thereby forms gradient.
4. battery array separator according to claim 1 is characterized in that, is provided with groove or perforate on the described substrate.
5. each described battery array separator is characterized in that according to claim 1～4, and described substrate and described buckle structure are integrated.
6. each described battery array separator is characterized in that according to claim 1～4, and the thickness of described substrate is 2mm～5mm.
7. each described battery array separator is characterized in that according to claim 1～4, and the width of described groove or perforate is 0.3mm～2mm.
8. battery array separator according to claim 2 is characterized in that, described core is circular or square.
9. lithium battery group, it is characterized in that, comprise: a plurality of lithium monocells, the brace that adjacent two lithium monocells are electrically connected and the claim 1～8 between adjacent two the lithium monocells dividing plate described in each, the buckle structure of wherein said brace and described dividing plate carries out buckle to be fixed.
10. lithium battery group according to claim 9 is characterized in that, the brace that adjacent two lithium monocells are electrically connected is welded on respectively on the electrode of described two lithium monocells identical polar separately.
11. according to claim 9 or 10 described lithium battery groups, it is characterized in that it is lithium ion secondary batteries.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012203548476U CN202749437U (en) | 2012-07-16 | 2012-07-16 | Partition plate used for battery pack and lithium battery pack adopting same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012203548476U CN202749437U (en) | 2012-07-16 | 2012-07-16 | Partition plate used for battery pack and lithium battery pack adopting same |
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| Publication Number | Publication Date |
|---|---|
| CN202749437U true CN202749437U (en) | 2013-02-20 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012203548476U Expired - Lifetime CN202749437U (en) | 2012-07-16 | 2012-07-16 | Partition plate used for battery pack and lithium battery pack adopting same |
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| CN (1) | CN202749437U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112397829A (en) * | 2020-11-13 | 2021-02-23 | 深圳市比亚迪锂电池有限公司 | Module with high flame retardance and high heat resistance and preparation method |
-
2012
- 2012-07-16 CN CN2012203548476U patent/CN202749437U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112397829A (en) * | 2020-11-13 | 2021-02-23 | 深圳市比亚迪锂电池有限公司 | Module with high flame retardance and high heat resistance and preparation method |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130220 |
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| CX01 | Expiry of patent term |