CN220914519U - Battery post assembly, battery pack and vehicle - Google Patents
Battery post assembly, battery pack and vehicle Download PDFInfo
- Publication number
- CN220914519U CN220914519U CN202322556135.3U CN202322556135U CN220914519U CN 220914519 U CN220914519 U CN 220914519U CN 202322556135 U CN202322556135 U CN 202322556135U CN 220914519 U CN220914519 U CN 220914519U
- Authority
- CN
- China
- Prior art keywords
- pole
- cover plate
- protection
- post assembly
- battery
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Links
- 230000005611 electricity Effects 0.000 claims abstract description 9
- 230000000149 penetrating effect Effects 0.000 claims abstract description 3
- 230000001681 protective effect Effects 0.000 claims description 15
- 239000012212 insulator Substances 0.000 claims description 5
- 229920001296 polysiloxane Polymers 0.000 claims description 2
- 239000012141 concentrate Substances 0.000 abstract description 2
- 238000007789 sealing Methods 0.000 description 5
- 230000001965 increasing effect Effects 0.000 description 4
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 3
- 229910001416 lithium ion Inorganic materials 0.000 description 3
- 230000001012 protector Effects 0.000 description 3
- 239000000741 silica gel Substances 0.000 description 3
- 229910002027 silica gel Inorganic materials 0.000 description 3
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 2
- 230000003139 buffering effect Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 229910052744 lithium Inorganic materials 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
-
- 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
Landscapes
- Connection Of Batteries Or Terminals (AREA)
Abstract
The present disclosure relates to a battery post assembly, battery package and vehicle, battery post assembly is used for setting up on the apron of casing and is in with setting up the inside utmost point core electricity of casing is connected, includes: the first end of the pole column is used for penetrating through the cover plate to be electrically connected with the pole lug of the pole core, and the second end opposite to the first end is used for protruding out of the cover plate to be arranged; the protection piece is covered on the outer side of the pole and is used for being connected with the cover plate, and the protection piece is electrically connected with the pole; and the buffer piece is arranged between the protection piece and the cover plate. The protection piece cover of this disclosure establishes in the outside of utmost point post and is connected with the apron, and the protection piece is connected with utmost point post electricity, and the bolster setting is between protection piece and apron, and the stress and the strain that produce when receiving external force impact can directly transmit to the apron through the protection piece to absorb the relief through the bolster, avoid stress and strain to concentrate on the utmost point post entirely and cause the sealed inefficacy of utmost point post even the utmost point post drops.
Description
Technical Field
The present disclosure relates to the technical field of lithium ion batteries, and in particular, to a battery post assembly, a battery pack, and a vehicle.
Background
The lithium ion battery has the advantages of high energy density, high capacity, small volume, environmental protection and the like, and is widely applied to the field of new energy automobiles at present. In order to ensure the safety performance of the lithium battery, reasonable structural design is required.
At present, most of lithium batteries adopt square aluminum shell structures, and when a connecting sheet is welded and subjected to larger impact force in the process of assembling a battery pack, and when the connecting sheet connected to a pole post after the battery is assembled and subjected to external force impact, the stress and strain generated are all concentrated on the pole post, so that the risk of sealing failure of the pole post and even falling of the pole post exists.
Disclosure of utility model
An object of the present disclosure is to provide a battery post assembly, a battery pack, and a vehicle, which can solve the above technical problems.
In order to achieve the above object, the present disclosure provides a battery post assembly for being disposed on a cover plate of a housing and electrically connected with a pole core disposed inside the housing, the battery post assembly comprising: the first end of the pole column is used for penetrating through the cover plate to be electrically connected with the pole lug of the pole core, and the second end opposite to the first end is used for protruding out of the cover plate to be arranged; the protection piece is covered on the outer side of the pole and is used for being connected with the cover plate, and the protection piece is electrically connected with the pole; and the buffer piece is arranged between the protection piece and the cover plate.
Optionally, the protection piece is configured as a cover body with an opening at one end, the buffer piece is configured as an insulating elastic pad, the cover body is used for being connected with the cover plate through the insulating elastic pad, and the cover body is fixedly connected with the second end.
Optionally, the protection piece includes protective structure and bearing structure, the protective structure cover is established the outside of utmost point post and with the second end is connected, bearing structure is including setting up the inboard and one end of protective structure with the protective structure is close to one side fixed connection's of second end support piece and setting are in the relative other end of support piece and outside horizontally extended extension, extension extends to the protective structure's outside with insulating elastic pad is connected, protective structure with extension fixed connection.
Optionally, the cross section of the protection structure is configured as an isosceles trapezoid, the upper bottom edges of the isosceles trapezoids are fixedly connected with the second end, the upper bottom edge length of the isosceles trapezoids is L 1, and the lower bottom edge length of the isosceles trapezoids is L 2, so that 0.80L 2≤L1≤0.85L2 is met.
Optionally, the supporting piece is configured as an arc structure, at least two supporting pieces are oppositely arranged, a mounting space for accommodating the pole is formed between the two supporting pieces, and the distance between one side, connected with the protective structure, of the two supporting pieces is larger than the width of the second end.
Optionally, the circle center of the arc-shaped structure is arranged at the opening end of the protection structure and is positioned on the plane where the extension part is positioned, and the circle center angle of the arc-shaped structure is alpha 1, so that the angle of alpha 1 is more than or equal to 60 degrees and less than or equal to 90 degrees.
Optionally, the cushioning member is configured as a thermally conductive silicone pad.
Optionally, the battery post assembly further comprises a first insulator disposed between the post and the cover plate.
A second object of the present disclosure is to provide a battery pack including: the shell and the cover plate are surrounded to form a closed accommodating cavity; the pole core is arranged in the accommodating cavity; the pole lug is arranged on the pole core and is electrically connected with the pole core; and the battery pole assembly is arranged on the cover plate and is electrically connected with the pole lug.
A third object of the present disclosure is to provide a vehicle including the above battery pack.
Through above-mentioned technical scheme, in the battery post subassembly that this disclosure provided, the apron is passed to the one end of utmost point post and is connected with the utmost point ear electricity, and the other end protrusion is outside the apron, and the protection piece cover is established in the outside of utmost point post and is connected with the apron, and the protection piece is connected with utmost point post electricity and is used for supplying power to outside, and the bolster setting is between protection piece and apron, and the stress and the strain that produce when receiving external force to assault can directly transmit to the apron through the protection piece to absorb through the bolster and alleviate, avoid stress and strain to concentrate on the utmost point post entirely and cause the sealed inefficacy of utmost point post even the utmost point post drops.
Additional features and advantages of the present disclosure will be set forth in the detailed description which follows.
Drawings
The accompanying drawings are included to provide a further understanding of the disclosure, and are incorporated in and constitute a part of this specification, illustrate the disclosure and together with the description serve to explain, but do not limit the disclosure. In the drawings:
Fig. 1 is a schematic view of a structure of a battery pack of the present disclosure;
FIG. 2 is a schematic structural view of a battery post assembly of the present disclosure;
FIG. 3 is a schematic view of the structure of the protector of the present disclosure;
Fig. 4 is a schematic view of the structure of the protector of the present disclosure.
Description of the reference numerals
1. A housing; 2. a pole core; 3. a cover plate; 4. a pole; 41. a first end; 42. a second end; 5. a tab; 6. a buffer member; 7. a seal ring; 8. a second insulating member; 9. a protective member; 91. a protective structure; 92. a support structure; 921. a support; 922. an extension part; 93. a fixing hole; 94. a positioning groove; 10. a first insulating member.
Detailed Description
Specific embodiments of the present disclosure are described in detail below with reference to the accompanying drawings. It should be understood that the detailed description and specific examples, while indicating and illustrating the disclosure, are not intended to limit the disclosure.
In this disclosure, unless otherwise indicated, directional terms such as "upper and lower" are used generally to refer to directions in fig. 1, and "inner and outer" refer to inner and outer with respect to the outline of a component or structure itself. In addition, it should be noted that terms such as "first, second", etc. are used to distinguish one element from another element without order or importance. In addition, in the description with reference to the drawings, the same reference numerals in different drawings denote the same elements.
The present disclosure provides a battery post assembly for setting up on the apron 3 of casing 1 and being connected with the utmost point core 2 electricity of setting up inside casing 1, battery post assembly includes: a pole 4, a first end 41 of which is used for passing through the cover plate 3 to be electrically connected with the pole lug 5 of the pole core 2, and a second end 42 opposite to the first end 41 is used for protruding out of the cover plate 3; the protection piece 9 is covered on the outer side of the pole 4 and is used for being connected with the cover plate 3, and the protection piece 9 is electrically connected with the pole 4; and a buffer 6 disposed between the protector 9 and the cover plate 3.
Through the above technical scheme, in the battery post assembly provided by the disclosure, one end of the post 4 passes through the cover plate 3 and is electrically connected with the tab 5, the other end protrudes out of the cover plate 3, so that electric energy in the post 2 is output to an external circuit, the protecting piece 9 is covered on the outer side of the post 4 and is connected with the cover plate 3, the protecting piece 9 is electrically connected with the post 4 and is used for supplying power to the outside, a connecting piece is further arranged on the protecting piece 9 and is used for contacting with the external circuit and conducting electricity, for example, the connecting piece can be welded with the protecting piece 9, the buffer piece 6 is arranged between the protecting piece 9 and the cover plate 3, stress and strain generated when the buffer piece 6 is impacted by external force can be directly transmitted to the cover plate 3 through the protecting piece 9, and absorption and release are carried out through the buffer piece 6, so that the sealing failure of the post 4 caused by the stress and the strain are prevented from being fully concentrated on the post 4 is even the post 4 is dropped, namely, the protecting piece 9 bears a part of force and guides the force to the cover plate 3, and the stress is prevented from being fully concentrated on the post 4.
As an alternative embodiment, as shown in fig. 1 to 4, the protection member 9 is configured as a cover body with one open end, the buffer member 6 is configured as an insulating elastic pad, such as a silica gel pad or a rubber pad, etc., the cover body is used for being connected with the cover plate 3 through the insulating elastic pad, the protection member 9 is prevented from transmitting current to the cover plate 3 while buffering, and the cover body is fixedly connected with the second end 42, such as welded, so as to connect the cover body with the pole 4 more firmly.
Optionally, the protection member 9 includes a protection structure 91 and a support structure 92, the protection structure 91 is covered on the outer side of the pole 4 and is connected with the second end 42, for protecting the pole 4, the support structure 92 includes a support member 921 disposed on the inner side of the protection structure 91 and having one end fixedly connected with one side of the protection structure 91 close to the second end 42, and an extension portion 922 disposed on the opposite other end of the support member 921 and horizontally extending to the outer side, the support member 921 is disposed on the inner side of the protection structure 91 for supporting, the bearing capacity of the protection member 9 is increased, the extension portion 922 extends to the outer side of the protection structure 91 and is connected with an insulating elastic pad, so as to increase the contact area between the support member 921 and the insulating elastic pad, thereby enhancing the buffering effect, and simultaneously increasing the contact area can enhance the connection strength between the support member 921 and the insulating elastic pad, for example, the extension portion can be bonded with the insulating elastic pad, the protection structure 91 is fixedly connected with the extension portion 922, for example, for welding, the protection structure 91 conducts force onto the cover plate 3 through the support structure 92, and absorbs and relieves by the insulating elastic pad.
The protection structure 91 may be configured as a cover body with any suitable shape, such as a cylinder, a rectangle, etc., for example, in this disclosure, the cross section of the protection structure 91 is configured as an isosceles trapezoid, the upper bottom edge of the isosceles trapezoid has a flat surface, so that the pole 4 and the connecting piece are welded, for example, a positioning slot 94 is disposed on one side of the upper bottom edge near the pole 4 for positioning the pole 4, a fixing hole 93 is disposed on the opposite side for fixing the connecting piece, and meanwhile, the protection structure plays a role of supporting the connecting piece.
Optionally, the support 921 is configured as an arc structure, and the support 921 is at least relatively provided with two support 921, an installation space for accommodating the pole 4 is provided between the two support 921, the arc structure is stressed uniformly and can bear larger force, the arc structure can protect the pole 4, the pole 4 is prevented from being extruded by two sides, the arcs of the two arc structures protrude outwards and are contacted with the protective structure 91, on one hand, the number of connection points with the protective structure 91 is increased to increase the supporting capacity, on the other hand, the installation space is enlarged, the distance between one side, where the two support 921 are connected with the protective structure 91, is larger than the width of the second end 42, the second end 42 can be in full contact with the upper bottom edge of the protective structure 91, and the pole 4 can be welded conveniently.
As shown in fig. 4, the center of the arc structure is disposed at the opening end of the protective structure 91 and is located on the plane where the extension 922 is located, and the central angle of the arc structure is α 1, which satisfies 60 ° or more and α 1 or less and 90 °, and avoids the battery pole component from being too high or too wide, thereby increasing the overall volume of the battery pole component.
As an alternative embodiment, the buffer 6 is configured as a heat-conducting silica gel pad, and heat generated by the pole 4 and the connecting sheet in the charging and discharging process can be quickly released through the heat-conducting silica gel pad, so that the safety of the battery is improved.
As an alternative embodiment, as shown in fig. 1-2, the battery pole assembly further comprises a first insulating member 10, the first insulating member 10 is arranged between the pole 4 and the cover plate 3 to avoid electric conduction between the pole 4 and the cover plate 3, for example, the first insulating member 10 may be a ceramic insulating member, insulating and also used for fixing the pole 4, and a sealing ring 7 is arranged between the first insulating member 10 and the pole 4 for sealing.
As shown in fig. 1, a second object of the present disclosure is to provide a battery pack, which is a lithium ion power battery pack, comprising: the shell 1 and the cover plate 3 are surrounded to form a closed accommodating cavity; a pole piece 2 arranged in the accommodating cavity; the pole lug 5 is arranged on the pole core 2 and is electrically connected with the pole core 2; and foretell battery post subassembly, battery post subassembly sets up on apron 3 and is connected with utmost point ear 5 electricity, and utmost point ear 5 includes anodal ear and negative pole ear, all is equipped with battery post subassembly on anodal ear and the negative pole ear, and one side that utmost point core 2 is close to apron 3 is equipped with second insulator 8, and utmost point ear 5 passes second insulator 8 and is connected with utmost point post 4 electricity, and second insulator 8 is used for avoiding to overlap between 3 and the utmost point core 2 electrically conductive.
A third object of the present disclosure is to provide a vehicle including the above battery pack, which can prevent the sealing failure of the pole 4 even if the pole 4 is detached due to the concentration of stress and strain on the pole 4, so that the vehicle is safer.
The preferred embodiments of the present disclosure have been described in detail above with reference to the accompanying drawings, but the present disclosure is not limited to the specific details of the embodiments described above, and various simple modifications may be made to the technical solutions of the present disclosure within the scope of the technical concept of the present disclosure, and all the simple modifications belong to the protection scope of the present disclosure.
In addition, the specific features described in the foregoing embodiments may be combined in any suitable manner, and in order to avoid unnecessary repetition, the present disclosure does not further describe various possible combinations.
Moreover, any combination between the various embodiments of the present disclosure is possible as long as it does not depart from the spirit of the present disclosure, which should also be construed as the disclosure of the present disclosure.
Claims (10)
1. A battery post assembly for setting up on the apron of casing and with set up the inside utmost point core electricity of casing is connected, its characterized in that, battery post assembly includes:
The first end of the pole column is used for penetrating through the cover plate to be electrically connected with the pole lug of the pole core, and the second end opposite to the first end is used for protruding out of the cover plate to be arranged;
The protection piece is covered on the outer side of the pole and is used for being connected with the cover plate, and the protection piece is electrically connected with the pole; and
And the buffer part is arranged between the protection part and the cover plate.
2. The battery post assembly according to claim 1, wherein the protection member is configured as a cover body having one end opened, the buffer member is configured as an insulating elastic pad, the cover body is connected to the cap plate through the insulating elastic pad, and the cover body is fixedly connected to the second end.
3. The battery post assembly according to claim 2, wherein the protection member comprises a protection structure and a support structure, the protection structure is covered on the outer side of the post and is connected with the second end, the support structure comprises a support member arranged on the inner side of the protection structure and fixedly connected with one side of the protection structure, which is close to the second end, and an extension part arranged on the opposite end of the support member and horizontally extends outwards, the extension part extends to the outer side of the protection structure and is connected with the insulating elastic pad, and the protection structure is fixedly connected with the extension part.
4. The battery post assembly of claim 3, wherein the cross-section of the guard structure is configured as an isosceles trapezoid, the upper base of the isosceles trapezoid is fixedly connected to the second end, the upper base of the isosceles trapezoid has a length L 1, and the lower base of the isosceles trapezoid has a length L 2, satisfying 0.80L 2≤L1≤0.85L2.
5. A battery post assembly according to claim 3, wherein the support members are configured in an arc-shaped structure and at least two support members are provided opposite each other with a mounting space therebetween for receiving the post, and a distance between a side of the support members to which the protective structure is attached is greater than a width of the second end.
6. The battery post assembly of claim 5, wherein a center of the arc structure is disposed at the open end of the guard structure and in a plane in which the extension is located, and a center angle of the arc structure is α 1, satisfying 60 ° - α 1 ° -90 °.
7. The battery post assembly of claim 1, wherein the buffer is configured as a thermally conductive silicone pad.
8. The battery post assembly of claim 1, further comprising a first insulator disposed between the post and the cover plate.
9. A battery pack, comprising:
The shell and the cover plate are surrounded to form a closed accommodating cavity;
The pole core is arranged in the accommodating cavity;
The pole lug is arranged on the pole core and is electrically connected with the pole core; and
The battery post assembly of any one of claims 1-8 disposed on the cover plate and electrically connected to the tab.
10. A vehicle comprising the battery pack according to claim 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322556135.3U CN220914519U (en) | 2023-09-19 | 2023-09-19 | Battery post assembly, battery pack and vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322556135.3U CN220914519U (en) | 2023-09-19 | 2023-09-19 | Battery post assembly, battery pack and vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220914519U true CN220914519U (en) | 2024-05-07 |
Family
ID=90919652
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322556135.3U Active CN220914519U (en) | 2023-09-19 | 2023-09-19 | Battery post assembly, battery pack and vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220914519U (en) |
-
2023
- 2023-09-19 CN CN202322556135.3U patent/CN220914519U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant |