CN212257515U - Electric core isolation device of power battery pack of portable battery-replacing electric vehicle and power battery pack - Google Patents
Electric core isolation device of power battery pack of portable battery-replacing electric vehicle and power battery pack Download PDFInfo
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- CN212257515U CN212257515U CN202021204543.2U CN202021204543U CN212257515U CN 212257515 U CN212257515 U CN 212257515U CN 202021204543 U CN202021204543 U CN 202021204543U CN 212257515 U CN212257515 U CN 212257515U
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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 provides a portable electric motor car power battery of trading wraps electric core isolating device and power battery package, the utility model provides an electric core isolating device locates and is between each cylindrical electric core that array arranged in the power battery package, including the division board. The partition boards are arranged on the upper portion and the lower portion of each row of the battery cores in a two-in-one mode, one side, facing the battery cores, of each partition board is provided with a through clamping portion, and the clamping portions on the two partition boards in the same group correspond to each other one by one to enable the main body portions of the battery cores to be coated in an isolated mode. The utility model discloses a portable electric motor car power battery package electricity core isolating device that trades can improve the isolation barrier propterty between each adjacent electric core in the battery package, reduces the battery package risk that individual electric core abnormal damage bursts and probably causes.
Description
Technical Field
The utility model relates to a new energy automobile's battery technology field, in particular to portable electric motor car power battery package electricity core isolating device that trades. The utility model discloses still relate to a power battery package.
Background
With the development of the electric automobile industry, society has higher and higher requirements on the energy density and the cost of a power battery; the lightweight design of the battery module/module is an effective measure for improving the energy density of a battery system and reducing the cost.
The battery module support of current cylinder type electricity core in the market plays the effect of fixing and supporting to electric core. Generally, a plurality of electric cores are arranged in an array manner and fixed on a support, necessary isolation measures are not needed among the electric cores, and some electric cores are filled with fireproof light plastics to play an isolation role, but the cooling and heat-conducting performance is poor. Especially when individual electric core bursts and damages, adjacent each electric core can often be ignited to single electric core that bursts, causes the burnout or the explosion of whole battery module and even whole power battery package, has very big potential safety hazard. Therefore, it is particularly necessary to design a cell isolation device with good isolation performance.
SUMMERY OF THE UTILITY MODEL
In view of this, the utility model aims at providing a portable electric motor car power battery package electricity core isolating device that trades to improve the isolation barrier propterty between each adjacent electric core in the battery package, reduce the battery package risk that the unusual damage of individuality electric core bursts and probably causes.
In order to achieve the above purpose, the technical scheme of the utility model is realized like this:
the utility model provides a portable electric motor car power battery package electricity core isolating device that trades locates between each cylindrical electric core that is array arrangement in the power battery package, include:
the separator plates are arranged on the upper portion and the lower portion of each row of the battery cells in a two-in-one mode, one side, facing the battery cells, of each separator plate is provided with a through clamping portion, and the clamping portions on the two separator plates in the same group correspond to each other one by one to wrap the main body portions of the battery cells in an isolated mode.
Further, an inner cavity is formed in the isolation plates, and the inner cavities of the two isolation plates in the same group are arranged in a through mode; and cooling liquid flows through the inner cavity.
Further, the partition plate comprises an upper partition plate positioned above each row of the battery cells and a lower partition plate positioned below each row of the battery cells; one end of the same side of the upper isolation plate and the lower isolation plate is respectively provided with a cooling liquid inlet and a cooling liquid outlet, and the other end of the same side is respectively provided with a communicating pipe and a communicating hole; the communicating pipe and the communicating hole are in sealed splicing to form conduction between the inner cavities of the upper isolating plate and the lower isolating plate.
Furthermore, sealing grooves are formed around the clamping part, and the sealing grooves on the upper isolation plate and the lower isolation plate correspond to each other to form a sealing groove cavity together; the battery cell isolation device of the portable battery-replacing electric vehicle power battery pack further comprises a sealing strip arranged in the sealing groove cavity.
Further, on the division board the integrative intercommunication of seal groove, the sealing strip is as an organic whole to be moulded plastics and is formed.
Furthermore, a boss which can be tightly attached to the outer peripheral surface of the battery cell is constructed on the side wall of the clamping part, and the boss is connected with the outer wall of the clamping part through a thinned easy-to-break part.
Further, the isolation plate is an aluminum casting.
Furthermore, mounting holes are formed in four corners of the isolation plates, and the two isolation plates in the same group are fastened into a whole through the mounting holes.
Compared with the prior art, the utility model discloses following advantage has:
(1) portable electric motor car power battery package electric core isolating device that trades, set up two of symmetry centre gripping electric core respectively from the upper and lower both sides of whole row's electric core and go up the division board, will get up except that the most periphery side cladding of electric core of both ends electrode part, make adjacent each electric core kept apart each other, timely an electric core takes place unusually, also furthest's reduction is to the influence of other electric cores, thereby can improve the isolation barrier propterty between each adjacent electric core in the battery package, reduce the battery package risk that individual electric core abnormal damage burst and probably cause.
(2) The division board is as the carrier that the coolant liquid flowed through when forming the isolation, realizes the outside circulation cooling of electric core, can improve the operating condition of electric core, promotes the working property of electric core.
(3) The upper isolation plate and the lower isolation plate are oppositely clamped to form a group of isolation, a circulation pipeline is formed between the upper isolation plate and the lower isolation plate, the circulation cooling is reasonable and effective in arrangement and convenient to construct, and the cooling effect is better.
(4) Set up the sealing strip around the clamping part between last division board and the lower division board, and between the surface of division board and the surface of electric core, can be with the whole isolation of main part of electric core in a sealed centre gripping cavity, in case electric core takes place the condition of unusually bursting, also be difficult for leaking heat or smoke and dust etc. out, strengthened the security of whole battery package.
(5) Use a sealing strip on the division board, the installation of placing of the sealing strip of being convenient for does benefit to the assembly efficiency who improves battery module.
(6) The structure can be because the expansion that bursts of electricity core and the 410 that is broken by the extrusion on the lateral wall of clamping part, and when taking place unusually, the easy-to-break portion fracture of boss, the coolant liquid of inner chamber can flow into the centre gripping chamber, can effectively restrain because of electric core fracture initiation's flame and high temperature to make isolating device's safety protection performance better.
(7) The partition board is made of integrated cast aluminum, so that the partition board is convenient to process and has the advantages of light dead weight, good heat transfer performance and the like.
(8) Fasteners such as bolts are adopted to fasten the upper isolation plate and the lower isolation plate in pairs through the mounting holes in the four corners of the isolation plate, so that the assembly is convenient, and the region where the battery cell is located is well avoided.
Another object of the present invention is to provide a power battery pack, wherein a plurality of battery modules are disposed in the power battery pack, and each battery module is composed of a plurality of arrayed cylindrical cells; each electric core by portable electric motor car power battery package electricity core isolating device that trades keep apart.
Compared with the prior art, the utility model provides a power battery package has the technical advantage that foretell electric core isolating device possessed.
Drawings
The accompanying drawings, which form a part of the present disclosure, are provided to provide a further understanding of the present disclosure, and the exemplary embodiments and descriptions thereof are provided to explain the present disclosure, wherein the related terms in the front, back, up, down, and the like are only used to represent relative positional relationships, and do not constitute an undue limitation of the present disclosure. In the drawings:
fig. 1 is a schematic structural view illustrating a battery cell isolation device of a portable battery-replaceable electric vehicle power battery pack according to an embodiment of the present invention isolating two rows of battery cells;
FIG. 2 is an exploded view of the components shown in FIG. 1;
FIG. 3 is an exploded view of the view shown in FIG. 2 from another perspective;
FIG. 4 is a schematic cross-sectional view taken along line A-A of FIG. 1;
FIG. 5 is an enlarged view of a portion of FIG. 4 at B;
description of reference numerals:
1-upper isolation plate, 100-upper plate inner cavity, 101-cooling liquid inlet, 102-communicating pipe, 103-upper clamping part, 2-lower isolation plate, 200-lower plate inner cavity, 201-cooling liquid outlet, 202-communicating hole, 203-lower clamping part, 3-electric core, 301-positive end, 302-negative end, 4-sealing strip, 400-sealing groove, 401-boss, 4010-easy-to-break part, 402-mounting hole and 5-heat-conducting glue.
Detailed Description
It should be noted that, in the present invention, the embodiments and features of the embodiments may be combined with each other without conflict.
In the description of the present invention, terms of left, right, up, down, and the like are used for convenience of description and are based on terms in the illustrated state, and should not be construed as limiting the structure of the present invention; references to first, second, third, etc. are also made for ease of description and are not to be construed as indicating or implying relative importance.
The embodiment relates to a power battery pack battery core isolation device of a portable battery-replaceable electric vehicle, which can improve the isolation and protection performance between adjacent battery cores in a battery pack and reduce the risk of the battery pack caused by abnormal damage and burst of the battery cores. This portable battery of trading electric motor car power battery package electricity core isolating device locates between each cylindrical electric core that is array arrangement in the power battery package, including the division board, two parts of division board are arranged in every row separately in a set of the top and bottom of electricity core, the division board towards one side of electricity core is constructed has the clamping part that link up, with two of a set of on the division board the clamping part one-to-one and with each the main part of electricity core is kept apart ground cladding.
Based on the above general structural principles, the present invention will be described in detail with reference to the accompanying drawings in conjunction with embodiments. An exemplary structure of the battery cell isolation device of the portable battery-replaceable electric vehicle power battery pack of the embodiment is shown in fig. 1, and mainly includes a plurality of isolation plates.
Combine as shown in fig. 2, this isolating device locates and is between each cylindrical electric core 3 that the array was arranged in the power battery package, division board two is a set of, every group includes an upper division board 1 and a lower division board 2, upper division board 1 and lower division board 2 divide arrange in every row of electric core 3 from top to bottom, the division board is constructed with the centre gripping portion that link up towards one side of electric core 3, the centre gripping portion one-to-one on two division boards with a set of, it is the one-to-one of last centre gripping portion 103 on division board 1 and lower centre gripping portion 203 on division board 2 down, the last centre gripping portion 103 and the lower centre gripping portion 203 that correspond constitute a centre gripping cavity, electric core 3 is acceptd in this centre gripping cavity, thereby make each electric core 3 by the division board cladding, the main part of electric core 3 is kept apart.
As shown in fig. 3 and 4, in order to provide a good working condition environment for the battery cell 3, an inner cavity is formed inside the partition board, and an upper board inner cavity 100 in the upper partition board 1 and a lower board inner cavity 200 in the lower partition board 2 in the same group are arranged in a penetrating manner; the inner cavity is circulated with cooling liquid. An upper isolation plate 1 positioned above each row of the electric cores 3 and a lower isolation plate 2 positioned below each row of the electric cores 3; one end of the same side of the upper isolation plate 1 and the lower isolation plate 2 is respectively provided with a cooling liquid inlet 101 and a cooling liquid outlet 201, and the other end of the same side is respectively provided with a communicating pipe 102 and a communicating hole 202; the communicating pipe 102 and the communicating hole 202 are hermetically inserted to form conduction between the inner cavities of the upper partition plate 1 and the lower partition plate 2. The division board is as the carrier that the coolant liquid flowed through when forming the isolation, realizes the outside circulation cooling to electric core 3, can improve electric core 3's operating condition, promotes electric core 3's working property. Form a set of isolation by last division board 1 and 2 butt clamps of division board down, go up division board 1 and form a circulation pipeline between division board 2 down, can make the reasonable effective, the structure of being convenient for of arranging of circulation cooling, the cooling effect is better.
As shown in fig. 3, 4 and 5, a sealing groove 400 is formed around the clamping portion, and the sealing groove 400 on the upper partition plate 1 and the sealing groove 400 on the lower partition plate 2 correspond to each other to form a sealing groove cavity; the battery cell isolation device of the portable battery-replaceable electric vehicle power battery pack further comprises a sealing strip 4 arranged in the sealing groove cavity. Between last division board 1 and lower division board 2, and between the surface of division board and electric core 3's surface, set up sealing strip 4 along the clamping part all around, can be with the whole isolation of the main part of electric core 3 in a sealed centre gripping cavity, in case electric core 3 takes place the condition of unusually bursting, also be difficult for leaking heat or smoke and dust etc. out, strengthened the security of whole battery package.
Preferably, as shown in fig. 3, the sealing grooves 400 of the partition plates are integrally communicated, and the sealing strip 4 is integrally formed by injection molding. Use a sealing strip 4 on an division board, the installation of placing of the sealing strip 4 of being convenient for does benefit to the assembly efficiency who improves battery module.
In addition, a boss 401 which can be tightly attached to the outer peripheral surface of the battery cell 3 is configured on the side wall of the clamping part, and the boss 401 is connected with the outer wall of the clamping part through a thinned breakable part 4010. The structure can be because the inflation that bursts of electricity core 3 and the 410 that is broken by the extrusion on the lateral wall of clamping part, and when taking place unusually, the easy-to-break 4010 fracture of boss 401, the coolant liquid of inner chamber can flow into the centre gripping chamber, can effectively restrain because of electric core 3 breaks the flame and the high temperature that causes to make isolator's safety protection performance better. In order to overcome the problem that the heat transfer performance between the battery cell 3 and the isolation plate is poor due to the arrangement of the boss 401, the heat-conducting glue 5 can be added between the inner wall of the clamping cavity and the battery cell 3, so that the heat dissipation performance of the battery cell 3 is ensured.
The partition plate may be made of a suitable material, and preferably, cast aluminum may be used. The partition board is made of integrated cast aluminum, so that the partition board is convenient to process and has the advantages of light dead weight, good heat transfer performance and the like.
As shown in fig. 1, mounting holes 402 are formed at four corners of the partition boards, so that two partition boards in the same group can be fastened together through the mounting holes 402. The upper isolation plate 1 and the lower isolation plate 2 are assembled and fastened in pairs by adopting fasteners such as bolts through the mounting holes 402 on the four corners of the isolation plates, so that the assembly is convenient, and the region where the battery cell 3 is located is well avoided.
The portable battery pack electric core isolating device of the battery-powered electric vehicle can be applied to a power battery pack, when the portable battery pack electric core isolating device is used, the battery cores 3 can be arranged and fixed in a support of a battery module, the isolating device is clamped between the battery cores 3, and an isolating plate in the device can also be fixed on the support. The electrodes of two adjacent rows of battery cells 3 may be arranged in the same direction or in different directions. For example, as shown in fig. 1, the negative terminals 302 of the battery cells 3 in the previous row face the front side in the figure, and the positive terminals 301 of the next row face the front side in the figure, so that the series connection between the corresponding battery cells 3 in the previous row and the next row can be realized; and the cells 3 in the same row are connected in parallel. And the series-parallel connection circuit arrangement is convenient.
By adopting the battery cell isolation device and the power battery pack of the portable battery-replaceable electric vehicle power battery pack of the embodiment, two isolation plates for symmetrically clamping the battery cells 3 are respectively arranged from the upper side and the lower side of the whole row of the battery cells 3, most peripheral side faces of the battery cells 3 except for electrode parts at two ends are wrapped, so that the adjacent battery cells 3 are isolated from each other, even if one battery cell 3 is abnormal, the influence on other battery cells 3 can be reduced to the maximum extent, the isolation and protection performance between the adjacent battery cells 3 in the battery pack can be improved, and the risk of the battery pack possibly caused by abnormal damage and burst of the individual battery cells 3 is reduced.
The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (9)
1. The utility model provides a portable electric motor car power battery package electricity core isolating device that trades locates between each cylindrical electric core (3) that are array arrangement in the power battery package, its characterized in that includes:
the separator plates are arranged on the upper portion and the lower portion of each row of the battery cells (3) in a two-in-one mode, one side, facing the battery cells (3), of each separator plate is provided with a through clamping portion, and the clamping portions on the two separator plates in the same group correspond to each other one by one to enable the main body portions of the battery cells (3) to be wrapped in an isolated mode.
2. The portable battery pack cell isolation device of an electric vehicle that trades of claim 1, characterized in that: an inner cavity is formed in the isolating plate, and the inner cavities of the two isolating plates in the same group are arranged in a through mode; and cooling liquid flows through the inner cavity.
3. The portable battery pack cell isolation device of the battery-replaceable electric vehicle of claim 2, characterized in that: the isolation plates comprise an upper isolation plate (1) positioned above each row of the battery cells (3) and a lower isolation plate (2) positioned below each row of the battery cells (3); one end of the upper isolation plate (1) and one end of the lower isolation plate (2) on the same side are respectively provided with a cooling liquid inlet (101) and a cooling liquid outlet (201), and the other end of the upper isolation plate and the lower isolation plate on the same side are respectively provided with a communicating pipe (102) and a communicating hole (202); the communicating pipe (102) and the communicating hole (202) are in sealed insertion connection to form conduction between inner cavities of the upper isolation plate (1) and the lower isolation plate (2).
4. The portable battery pack cell isolation device of the battery-replaceable electric vehicle of claim 3, characterized in that: a sealing groove (400) is formed around the clamping part, and the sealing groove (400) on the upper isolation plate (1) and the sealing groove (400) on the lower isolation plate (2) correspond to each other to form a sealing groove cavity together; the battery cell isolation device of the portable battery-replacing electric vehicle power battery pack further comprises a sealing strip (4) arranged in the sealing groove cavity.
5. The portable battery pack cell isolation device of the battery-replaceable electric vehicle of claim 4, characterized in that: the sealing grooves (400) on the partition plate are integrally communicated, and the sealing strips (4) are integrally formed by injection molding.
6. The portable battery pack cell isolation device of an electric vehicle that trades of any of claims 2-5, characterized in that: the battery clamping device is characterized in that a boss (401) capable of being tightly attached to the outer peripheral surface of the battery core (3) is constructed on the side wall of the clamping part, and the boss (401) is connected with the outer wall of the clamping part through a thinned easy-to-break part (4010).
7. The portable battery pack cell isolation device of the battery-replaceable electric vehicle of claim 6, characterized in that: the isolation plate is an aluminum casting.
8. The portable battery pack cell isolation device of the battery-replaceable electric vehicle of claim 7, characterized in that: mounting holes (402) are formed in four corners of the isolation plates, and the two isolation plates in the same group are fastened into a whole through the mounting holes (402).
9. A power battery pack is characterized in that a plurality of groups of battery modules are arranged in the power battery pack, and each battery module is composed of a plurality of arrayed cylindrical battery cores (3); the method is characterized in that: the battery cores (3) are separated by the battery core isolation device of the portable battery replacement electric vehicle power battery pack of any one of claims 1 to 8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021204543.2U CN212257515U (en) | 2020-06-24 | 2020-06-24 | Electric core isolation device of power battery pack of portable battery-replacing electric vehicle and power battery pack |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021204543.2U CN212257515U (en) | 2020-06-24 | 2020-06-24 | Electric core isolation device of power battery pack of portable battery-replacing electric vehicle and power battery pack |
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| CN212257515U true CN212257515U (en) | 2020-12-29 |
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| CN202021204543.2U Active CN212257515U (en) | 2020-06-24 | 2020-06-24 | Electric core isolation device of power battery pack of portable battery-replacing electric vehicle and power battery pack |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114628834A (en) * | 2022-03-29 | 2022-06-14 | 蜂巢能源科技股份有限公司 | Cylindrical battery module |
-
2020
- 2020-06-24 CN CN202021204543.2U patent/CN212257515U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114628834A (en) * | 2022-03-29 | 2022-06-14 | 蜂巢能源科技股份有限公司 | Cylindrical battery module |
| CN114628834B (en) * | 2022-03-29 | 2023-10-20 | 蜂巢能源科技股份有限公司 | Cylindrical battery module |
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