CN113067106A - Battery cell connecting device and battery pack - Google Patents
Battery cell connecting device and battery pack Download PDFInfo
- Publication number
- CN113067106A CN113067106A CN202110312547.5A CN202110312547A CN113067106A CN 113067106 A CN113067106 A CN 113067106A CN 202110312547 A CN202110312547 A CN 202110312547A CN 113067106 A CN113067106 A CN 113067106A
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- battery
- battery cell
- cell
- pole
- groove
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- 238000006073 displacement reaction Methods 0.000 claims abstract description 6
- 239000004020 conductor Substances 0.000 claims description 6
- 230000005611 electricity Effects 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 4
- 238000009434 installation Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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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 invention belongs to the technical field of batteries and discloses a battery cell connecting device and a battery pack, wherein the battery cell connecting device comprises battery cell polar columns and a battery cell connecting piece, the battery cell polar columns are fixedly arranged at the top ends of battery cells, and two battery cell polar columns are arranged at the top ends of each battery cell; connecting grooves are respectively formed in two ends of the battery cell connecting piece in the length direction, battery cell polar columns of two adjacent battery cells are fixedly connected through the connecting grooves, and when the battery cells expand, the battery cell connecting piece can deform along the length direction to compensate expansion displacement between the two adjacent battery cells; the invention also discloses a battery pack which is provided with a plurality of battery cells, the battery cells are arranged in the same row to form a battery cell group, and the battery cell connecting device is further included, and two adjacent battery cells are fixedly connected through the battery cell connecting device. This electricity core connecting device monolithic connection is simple, easy dismounting, and when electric core inflation, the expansion displacement can be compensated to electric core connecting piece. The battery pack has strong overall flexibility and safety due to the fact that the battery pack comprises the battery cell connecting device.
Description
Technical Field
The invention relates to the technical field of batteries, in particular to a battery cell connecting device and a battery pack.
Background
At present, a plurality of electric cores in the group battery need connect the combination, the tradition mode adopts the welding mode with electric core utmost point post and connecting piece snap-on, the installation degree of difficulty is big, and the connecting piece can't be dismantled, except this kind of mode, still adopt the mode of bolt to connect, both ends fixed mounting with the connecting piece through the bolt is on the utmost point post of two adjacent electric cores, but the number of the connection part number that this kind of connected mode needs is many, it is great to occupy battery space, the connecting piece dismouting is inconvenient, and because electric core and electric core meta-position are fixed, when electric core inflation, extrusion between adjacent electric core each other, the holistic security of battery has been reduced.
Disclosure of Invention
The invention aims to provide a battery cell connecting piece and a battery pack. The battery pack has strong overall flexibility and safety due to the fact that the battery pack comprises the battery cell connecting device.
In order to achieve the purpose, the invention adopts the following technical scheme:
in one aspect, a cell connecting device is provided, including:
the battery cell pole columns are fixedly arranged at the top ends of the battery cells, and two battery cell pole columns are arranged at the top ends of the battery cells;
the battery core connecting piece, battery core connecting piece length direction's both ends are provided with the spread groove respectively, adjacent two the battery core utmost point post passes through spread groove fixed connection, during the battery core inflation, battery core connecting piece can produce deformation along length direction, compensates adjacent two the inflation displacement between the battery core.
As a preferred structure of the invention, the cell pole includes a first pole end, a second pole end and a support member, the second pole end is fixedly mounted on the top end of the cell, the first pole end and the second pole end are arranged in parallel, and two ends of the support member are vertically connected with the first pole end and the second pole end; the tip that the tank bottom was kept away from to the spread groove is provided with the groove shoulder, the groove shoulder with the spread groove lateral wall is connected perpendicularly, first utmost point post end sliding connection in the spread groove, the groove shoulder butt in first utmost point post end with between the second utmost point post end.
As a preferable structure of the present invention, a thickness dimension of the support member is not smaller than a thickness dimension of the groove shoulder.
As a preferred structure of the present invention, the thickness dimension of the first pole end is not greater than the distance between the groove shoulder and the groove bottom of the connecting groove.
As a preferred structure of the invention, a boss is arranged in the connecting groove, and when the first pole terminal is arranged in the connecting groove, the boss is abutted against one side of the first pole terminal, which is far away from the support member.
As a preferable structure of the present invention, one end of the boss is provided with a guide slope.
As a preferable structure of the present invention, the cell post is made of a conductive material; the battery core connecting piece is made of elastic conductive materials.
On the other hand, the battery pack is provided with a plurality of battery cells, the battery cells are arranged in the same row to form a battery cell group, the battery pack comprises the battery cell connecting device, and every two adjacent battery cells are fixedly connected through the battery cell connecting device.
The electric core pack with the two end plates is characterized by further comprising two end plates, and the two end plates are fixedly arranged on two sides of the electric core pack in the length direction respectively.
As a preferable structure of the invention, the invention further comprises a fixing frame, and the fixing frame is sleeved on the two end plates.
The invention has the beneficial effects that: the cell connecting device comprises the cell polar columns and the cell connecting pieces, two adjacent cells are fixedly connected through the cell polar columns and the cell connecting pieces, the connection is simple, the disassembly and the assembly are convenient, the cell connecting device integrally occupies a small internal space, and when the cells expand, the cell connecting pieces can compensate expansion displacement. In addition, the invention also provides a battery pack which comprises a plurality of battery cells and the battery cell connecting device, wherein two adjacent battery cells are fixedly connected through the battery cell connecting device, so that the overall flexibility and safety of the battery pack are enhanced.
Drawings
Fig. 1 is a schematic structural installation diagram of a cell connection device according to an embodiment of the present invention;
fig. 2 is a first schematic structural diagram of a cell connector according to an embodiment of the present invention;
fig. 3 is a schematic diagram of a cell connector structure according to an embodiment of the present invention;
fig. 4 is a first schematic structural diagram of a battery cell according to an embodiment of the present invention;
FIG. 5 is an enlarged partial schematic view at A of FIG. 4;
fig. 6 is a front view of a battery cell according to an embodiment of the present invention;
FIG. 7 is an enlarged partial schematic view at B of FIG. 6;
fig. 8 is a schematic structural view of a battery pack according to an embodiment of the present invention;
fig. 9 is a plan view of a battery pack according to an embodiment of the present invention;
FIG. 10 is a cross-sectional view taken along A-A of FIG. 9;
fig. 11 is a partially enlarged schematic view at C in fig. 10.
In the figure:
1. a battery cell pole column; 11. a first pole end; 12. a second pole end; 13. a support member;
2. a cell connecting piece; 21. connecting grooves; 211. a groove shoulder; 212. a boss; 2121. a guide slope; 100. an electric core; 110. an end plate; 120. a fixing frame.
Detailed Description
Reference will now be made in detail to the embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar parts throughout or parts having the same or similar functions. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention.
In the description of the present invention, unless otherwise expressly specified or limited, the terms "connected," "connected," and "fixed" are to be construed broadly, e.g., as meaning a fixed connection, a removable connection, a mechanical connection, an electrical connection, a direct connection, an indirect connection via an intermediary, a connection between two elements, or an interaction between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In the description of the present invention, unless otherwise expressly specified or limited, the first feature "on" or "under" the second feature may include the first feature and the second feature being in direct contact, or may include the first feature and the second feature being in contact not directly but with another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.
The technical scheme of the invention is further explained by the specific implementation mode in combination with the attached drawings.
As shown in fig. 1 to 11, the present invention provides a cell connecting member and a battery pack, and a cell connecting device, which includes a cell post 1 and a cell connecting member 2, preferably, the cell post 1 is made of a conductive material; the cell poles 1 are fixedly arranged at the top ends of the cells 100, and two cell poles 1 are arranged at the top end of each cell 100; two ends of the cell connecting piece 2 in the length direction are respectively provided with a connecting groove 21, and the cell poles 1 with the same polarity of two adjacent cells 100 are fixedly connected through the connecting grooves 21; preferably, the cell connector 2 is made of an elastic conductive material; when electric core 100 inflation, electric core connecting piece 2 can produce deformation along length direction, and the small size is flexible for the inflation displacement between two adjacent electric cores 100 of compensation improves electric core 100's security.
Specifically, the cell post 1 includes a first post end 11, a second post end 12 and a support member 13, the second post end 12 is fixedly mounted on the top end of the cell 100, the first post end 11 and the second post end 12 are arranged in parallel, two ends of the support member 13 are perpendicularly connected to the first post end 11 and the second post end 12, and the first post end 11 is slidably connected to the connection groove 21. In this embodiment, as shown in fig. 4 to 7, the structure of the cell post 1 is in an "i" shape, and the connection groove 21 is slidably connected to the cell post 1; specifically, the end of the connecting groove 21 far away from the groove bottom is provided with a groove shoulder 211, and the groove shoulder 211 is vertically connected with the side wall of the connecting groove 21; preferably, the thickness dimension of the supporting part 13 is not less than the thickness dimension of the groove shoulder 211, and the thickness dimension of the first pole end 11 is not more than the distance between the groove shoulder 211 and the groove bottom of the connecting groove 21; when installing electric core connecting piece 2, the alignment cartridge of the spread groove 21 of electric core connecting piece 2 one end and the first utmost point post end 11 of electric core utmost point post 1, groove shoulder 211 butt in between first utmost point post end 11 and second utmost point post end 12, make electric core connecting piece 2 and electric core utmost point post 1 be connected firmly.
Specifically, a boss 212 is arranged in the connecting groove 21, and when the first pole column end 11 is placed in the connecting groove 21, the boss 212 abuts against one side of the first pole column end 11, which is away from the support 13, so that the first pole column end 11 is tightly matched with the connecting groove 21; preferably, the boss 212 is provided with a guiding inclined surface 2121, and the guiding inclined surface 2121 plays a guiding role to facilitate the first pole end 11 to slide into the connecting groove 21 to be tightly connected with the boss 212.
In addition, the present embodiment also provides a battery pack, as shown in fig. 8 to fig. 11, the battery pack includes a plurality of battery cells 100, the plurality of battery cells 100 are disposed in the same column to form a battery pack, and the battery pack further includes the above battery cell connecting device, and two adjacent battery cells 100 are fixedly connected by the battery cell connecting device. Specifically, the battery pack further comprises two end plates 110, wherein the two end plates 110 are arranged, and the two end plates 110 are respectively and fixedly installed at two sides of the length direction of the electric core pack and used for fixing the electric core pack. Preferably, the battery pack further comprises a fixing frame 120, the fixing frame 120 is a rectangular frame structure, and the fixing frame 120 is sleeved on the two end plates 110 in the length direction of the electric core pack for further fixing the electric core pack.
It should be understood that the above-described embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.
Claims (10)
1. A cell connecting device, comprising:
the battery cell pole columns (1) are fixedly installed at the top ends of the battery cells (100), and two battery cell pole columns (1) are arranged at the top end of each battery cell (100);
the battery cell comprises a battery cell connecting piece (2), wherein connecting grooves (21) are respectively formed in two ends of the length direction of the battery cell connecting piece (2), the two adjacent ends of the battery cell connecting piece (2) are fixedly connected with the battery cell pole columns (1) through the connecting grooves (21), and when the battery cell (100) expands, the battery cell connecting piece (2) can deform along the length direction to compensate for the expansion displacement between the battery cells (100).
2. The cell connecting device according to claim 1, wherein the cell pole (1) comprises a first pole end (11), a second pole end (12) and a support member (13), the second pole end (12) is fixedly mounted at the top end of the cell (100), the first pole end (11) and the second pole end (12) are arranged in parallel, and two ends of the support member (13) are perpendicularly connected with the first pole end (11) and the second pole end (12); the tip of tank bottom is kept away from in spread groove (21) is provided with groove shoulder (211), groove shoulder (211) with spread groove (21) lateral wall is connected perpendicularly, first utmost point post end (11) sliding connection in spread groove (21), groove shoulder (211) butt in first utmost point post end (11) with between second utmost point post end (12).
3. The cell connection device according to claim 2, characterized in that the thickness dimension of the support (13) is not smaller than the thickness dimension of the groove shoulder (211).
4. The cell connection device according to claim 2, characterized in that the thickness dimension of the first pole end (11) is no greater than the distance between the groove shoulder (211) and the groove bottom of the connection groove (21).
5. The cell connection device according to claim 2, wherein a projection (212) is provided in the connection groove (21), and when the first pole end (11) is placed in the connection groove (21), the projection (212) abuts against a side of the first pole end (11) facing away from the support member (13).
6. The cell connecting device according to claim 5, wherein one end of the boss (212) is provided with a guide bevel (2121).
7. The cell connection device according to any of claims 1 to 6, characterized in that the cell pole (1) is made of an electrically conductive material; the battery core connecting piece (2) is made of elastic conductive materials.
8. A battery pack having a plurality of battery cells (100), wherein the plurality of battery cells (100) are arranged in a same row to form a battery core pack, and the battery pack is characterized by comprising the battery cell connecting device according to any one of claims 1 to 7, and two adjacent battery cells (100) are fixedly connected by the battery cell connecting device.
9. The battery pack according to claim 8, further comprising two end plates (110), wherein two end plates (110) are arranged, and the two end plates (110) are respectively and fixedly mounted at two sides of the length direction of the electric core pack.
10. The battery pack according to claim 9, further comprising a fixing frame (120), wherein the fixing frame (120) is sleeved on the two end plates (110).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110312547.5A CN113067106A (en) | 2021-03-24 | 2021-03-24 | Battery cell connecting device and battery pack |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110312547.5A CN113067106A (en) | 2021-03-24 | 2021-03-24 | Battery cell connecting device and battery pack |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113067106A true CN113067106A (en) | 2021-07-02 |
Family
ID=76561732
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110312547.5A Withdrawn CN113067106A (en) | 2021-03-24 | 2021-03-24 | Battery cell connecting device and battery pack |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113067106A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116315469A (en) * | 2023-05-11 | 2023-06-23 | 楚能新能源股份有限公司 | Pole mounting device and battery |
-
2021
- 2021-03-24 CN CN202110312547.5A patent/CN113067106A/en not_active Withdrawn
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116315469A (en) * | 2023-05-11 | 2023-06-23 | 楚能新能源股份有限公司 | Pole mounting device and battery |
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| PB01 | Publication | ||
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| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20210702 |
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| WW01 | Invention patent application withdrawn after publication |