CN217956073U - Battery pack with inserted positive and negative electrode posts of battery core - Google Patents
Battery pack with inserted positive and negative electrode posts of battery core Download PDFInfo
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- CN217956073U CN217956073U CN202222031795.5U CN202222031795U CN217956073U CN 217956073 U CN217956073 U CN 217956073U CN 202222031795 U CN202222031795 U CN 202222031795U CN 217956073 U CN217956073 U CN 217956073U
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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
Abstract
The utility model provides a battery pack with a spliced positive pole and negative pole of an electric core, belonging to the technical field of lithium batteries, wherein a negative pole on any electric core main body is spliced with a positive pole and/or a negative pole on an adjacent electric core main body; the negative pole column is positioned at one end of the cell main body, and the positive pole column is positioned at the other end of the cell main body; the negative pole column comprises a negative pole convex bolt and a negative pole concave bolt, the negative pole convex bolt is positioned on one side of the electric core main body, and the negative pole concave bolt is positioned on the other side of the electric core main body; the positive pole column comprises a positive convex bolt and a positive concave bolt, the positive convex bolt is positioned on one side of the cell main body, and the positive concave bolt is positioned on the other side of the cell main body; the negative pole column on any one battery cell main body is inserted with the positive pole column and/or the negative pole column on the adjacent battery cell main body without welding, and a certain battery cell main body can be replaced at any time when damaged, so that resources are saved.
Description
Technical Field
The utility model relates to a lithium cell technical field, specifically speaking relates to a group battery of grafting of positive negative pole utmost point post of electricity core.
Background
When the existing battery core is used, the battery pack is formed by connecting the positive pole column and the negative pole column in series or in parallel. When the electric cores are grouped, aluminum bus plates are generally welded on the anode pole and the cathode pole through laser. The invention provides an application number 202111140093.4, a laser welding method of a double-layer tab and a double-layer tab, a laser welding device and a lithium battery, wherein the laser welding method comprises the following steps: sequentially attaching the double-layer tabs and the bus pieces from top to bottom and fastening the double-layer tabs and the bus pieces through a clamp, wherein the gap between every two double-layer tabs and the bus pieces is not more than 0.1mm, each tab is made of the same metal material, and the bus pieces and the tabs are made of dissimilar metal materials; and irradiating the preset positions to be welded of the double-layer pole lug and the bus sheet by laser beams to weld the double-layer pole lug and the bus sheet into a whole, wherein the preset positions to be welded are arranged in a joint area of the double-layer pole lug and the bus sheet. This application has realized the laser welding of piece of buckleing of double-deck utmost point ear and dissimilar metal material, has eliminated the restriction to utmost point ear and piece of buckleing material when welding, has both guaranteed welding quality, has improved enterprise production efficiency, has reduced manufacturing cost again.
The mode of welding the aluminum bus plates on the anode pole and the cathode pole by using laser to connect a plurality of battery cells in series or in parallel has the following defects that once the performance of a certain battery cell is inconsistent with that of other battery cells, the whole battery pack can report waste, and serious resource waste is caused.
Therefore, a battery cell positive and negative electrode post convenient to disassemble and assemble is needed.
SUMMERY OF THE UTILITY MODEL
In view of this, the utility model provides a group battery of pegging graft of positive negative pole utmost point post of electric core, the positive negative pole utmost point post of a plurality of electric cores is connected through the mode of pegging graft, is convenient for change electric core.
The technical scheme of the utility model is realized like this: a battery pack with inserted positive and negative electrode posts of a battery cell comprises a plurality of battery cell main bodies, wherein each battery cell main body comprises a negative electrode post and a positive electrode post, and the negative electrode post on any one battery cell main body is inserted with the positive electrode post and/or the negative electrode post on the adjacent battery cell main body; the negative electrode pole is positioned at one end of the cell main body, and the positive electrode pole is positioned at the other end of the cell main body; the negative pole post comprises a negative convex bolt and a negative concave bolt, the negative convex bolt is positioned on one side of the cell main body, and the negative concave bolt is positioned on the other side of the cell main body; the positive pole column comprises a positive convex bolt and a positive concave bolt, the positive convex bolt is positioned on one side of the battery cell main body, and the positive concave bolt is positioned on the other side of the battery cell main body.
On the basis of the above technical scheme, preferably, the negative pole post and the positive pole post are both arranged along the height direction of the battery cell main body.
On the basis of the technical scheme, preferably, the negative convex bolt comprises a negative limiting plate, a negative connecting plate, a negative first contact piece and a negative bulge, the negative limiting plate is parallel to the side surface of the cell main body, and the negative connecting plate is arranged between the negative limiting plate and the negative pole post; the negative electrode first contact piece is arranged on the side face of the negative electrode connecting plate and arranged along the height direction of the negative electrode connecting plate; the negative pole protrusion is arranged on the negative pole first contact piece and arranged along the height direction of the negative pole first contact piece.
On the basis of the technical scheme, preferably, the negative concave bolt comprises a negative limiting groove, a negative connecting groove, a negative second contact piece and a negative pit, the negative limiting groove is parallel to the side face of the electric core main body, the negative connecting groove is parallel to the negative connecting plate, and the negative limiting groove is communicated with the negative connecting groove; the negative electrode second contact piece is arranged on the side face of the negative electrode connecting groove and is arranged along the height direction of the negative electrode connecting plate; the negative electrode recess is arranged on the negative electrode second contact piece, and the negative electrode recess is arranged along the height direction of the negative electrode second contact piece.
On the basis of the technical scheme, preferably, the negative electrode limiting plate is inserted into the negative electrode limiting groove, and the negative electrode connecting plate is inserted into the negative electrode connecting groove.
On the basis of the technical scheme, preferably, the negative first contact piece is in conductive connection with the negative second contact piece; the negative pole is protruding to be mutually supported the setting with the negative pole is sunken.
On the basis of the technical scheme, preferably, the positive protruding bolt comprises a positive limiting plate, a positive connecting plate, a positive first contact piece and a positive protrusion, wherein the positive limiting plate is parallel to the side surface of the cell main body, and the positive connecting plate is arranged between the positive limiting plate and the positive pole; the positive electrode first contact piece is arranged on the side face of the positive electrode connecting plate and arranged along the height direction of the positive electrode connecting plate; the positive electrode bulge is arranged on the positive electrode first contact piece and arranged along the height direction of the positive electrode first contact piece.
On the basis of the technical scheme, preferably, the positive concave bolt comprises a positive limiting groove, a positive connecting groove, a positive second contact piece and a positive recess, wherein the positive limiting groove is parallel to the side surface of the electric core main body, the positive connecting groove is parallel to the positive connecting plate, and the positive limiting groove is communicated with the positive connecting groove; the positive concave bolt also comprises a positive second contact piece arranged on the side surface of the positive connecting groove, and the positive second contact piece is arranged along the height direction of the positive connecting plate; the positive electrode recess is arranged on the positive electrode second contact piece, and the positive electrode recess is arranged along the height direction of the positive electrode second contact piece.
On the basis of the technical scheme, preferably, the positive limiting plate is inserted into the positive limiting groove, and the positive connecting plate is inserted into the positive connecting groove.
On the basis of the technical scheme, preferably, the positive first contact piece is in conductive connection with the positive second contact piece; the positive electrode bulge and the positive electrode recess are matched with each other.
The utility model discloses a group battery of pegging graft of positive negative pole utmost point post of electricity core has following beneficial effect for prior art:
(1) The cathode pole column on any one cell main body is inserted with the anode pole column and/or the cathode pole column on the adjacent cell main body without welding, and a certain cell main body can be replaced at any time when damaged, so that resources are saved;
(2) The negative pole column and the positive pole column are arranged along the height direction of the cell body, and the inserting direction is along the height direction of the cell body;
(3) The negative first contact piece is in conductive connection with the negative second contact piece; the negative electrode protrusion and the negative electrode recess are matched with each other, so that the conductive effect between the negative electrode first contact piece and the negative electrode second contact piece is better;
(4) The positive first contact piece is in conductive connection with the positive second contact piece; the positive electrode protrusion and the positive electrode recess are matched with each other, and the conductive effect between the positive electrode first contact piece and the positive electrode second contact piece is better.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a front view of a battery pack according to the present invention;
fig. 2 is a top view of the present invention in fig. 1;
fig. 3 is a front view of the battery pack in which positive and negative electrode posts of the battery cell are inserted;
fig. 4 is a front view of the negative electrode post of the present invention;
fig. 5 is a front view of the positive pole of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely below with reference to the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work all belong to the protection scope of the present invention.
As shown in fig. 1 to 5, a battery pack with a battery cell and a positive electrode terminal post inserted therein includes a plurality of battery cell main bodies 1, and each battery cell main body 1 includes a negative electrode terminal post 2 and a positive electrode terminal post 3.
As shown in fig. 1 to 5, a negative electrode post 2 on any one of the cell main bodies 1 is inserted into a positive electrode post 3 and/or a negative electrode post 2 on an adjacent cell main body 1; the cathode pole 2 is positioned at one end of the cell main body 1, and the anode pole 3 is positioned at the other end of the cell main body 1; the negative electrode post 2 and the positive electrode post 3 are both arranged along the height direction of the cell body 1.
The negative electrode post 2, as shown in fig. 1 to 4, includes a negative electrode male plug 21 and a negative electrode female plug 22, the negative electrode male plug 21 is located on one side of the cell body 1, and the negative electrode female plug 22 is located on the other side of the cell body 1.
As shown in fig. 1 to 3 and 5, the positive electrode post 3 includes a positive electrode male plug 31 and a positive electrode female plug 32, the positive electrode male plug 31 is located on one side of the cell body 1, and the positive electrode female plug 32 is located on the other side of the cell body 1.
The negative electrode protruding plug 21, as shown in fig. 4, includes a negative electrode limiting plate 211, a negative electrode connecting plate 212, a negative electrode first contact piece 213, and a negative electrode protrusion 214, where the negative electrode limiting plate 211 is parallel to the side surface of the cell main body 1, and the negative electrode connecting plate 212 is disposed between the negative electrode limiting plate 211 and the negative electrode post 2; the negative electrode first contact piece 213 is provided on the side surface of the negative electrode connection plate 212, and the negative electrode first contact piece 213 is provided along the height direction of the negative electrode connection plate 212; the negative electrode projection 214 is provided on the negative electrode first contact piece 213, and the negative electrode projection 214 is provided along the height direction of the negative electrode first contact piece 213.
The negative electrode concave bolt 22, as shown in fig. 4, includes a negative electrode limiting groove 221, a negative electrode connecting groove 222, a negative electrode second contact piece 223 and a negative electrode recess 224, where the negative electrode limiting groove 221 is parallel to a side surface of the electric core main body 1, the negative electrode connecting groove 222 is parallel to the negative electrode connecting plate 212, and the negative electrode limiting groove 221 is communicated with the negative electrode connecting groove 222; the negative electrode second contact piece 223 is arranged on the side surface of the negative electrode connecting groove 222, and the negative electrode second contact piece 223 is arranged along the height direction of the negative electrode connecting plate 212; the negative electrode recess 224 is provided on the negative electrode second contact piece 223, and the negative electrode recess 224 is provided along the height direction of the negative electrode second contact piece 223.
In a preferred embodiment, the negative electrode limiting plate 211 is inserted into the negative electrode limiting groove 221, and the negative electrode connecting plate 212 is inserted into the negative electrode connecting groove 222; the negative first contact piece 213 is electrically connected with the negative second contact piece 223; the negative protrusion 214 and the negative recess 224 are cooperatively disposed.
As shown in fig. 5, the positive electrode male plug 31 includes a positive electrode limiting plate 311, a positive electrode connecting plate 312, a positive electrode first contact piece 313, and a positive electrode projection 314, the positive electrode limiting plate 311 is parallel to the side surface of the cell main body 1, and the positive electrode connecting plate 312 is disposed between the positive electrode limiting plate 311 and the positive electrode post 3; the positive electrode first contact piece 313 is provided on the side surface of the positive electrode connection plate 312, and the positive electrode first contact piece 313 is provided along the height direction of the positive electrode connection plate 312; the positive electrode projection 314 is provided on the positive electrode first contact piece 313, and the positive electrode projection 314 is provided along the height direction of the positive electrode first contact piece 313.
As shown in fig. 5, the positive electrode female plug 32 includes a positive electrode limiting groove 321, a positive electrode connecting groove 322, a positive electrode second contact piece 323, and a positive electrode recess 324, where the positive electrode limiting groove 321 is parallel to the side surface of the electric core main body 1, the positive electrode connecting groove 322 is parallel to the positive electrode connecting plate 312, and the positive electrode limiting groove 321 is communicated with the positive electrode connecting groove 322; the positive electrode concave bolt 32 further includes a positive electrode second contact piece 323 arranged on a side surface of the positive electrode connecting groove 322, the positive electrode second contact piece 323 being arranged along a height direction of the positive electrode connecting plate 312; the positive electrode recess 324 is formed in the positive electrode second contact piece 323, and the positive electrode recess 324 is formed along the height direction of the positive electrode second contact piece 323.
As a preferred embodiment, the positive electrode limiting plate 311 is inserted into the positive electrode limiting groove 321, and the positive electrode connecting plate 312 is inserted into the positive electrode connecting groove 322; the positive electrode first contact piece 313 is electrically connected with the positive electrode second contact piece 323; the positive electrode protrusion 314 and the positive electrode recess 324 are cooperatively disposed.
A use method of a battery pack with a battery cell and positive and negative electrode posts in plug-in connection comprises the following steps:
according to the series-parallel connection requirement of the battery pack, the negative convex bolt 21 of one cell main body 1 is connected with the negative concave bolt 22 of the adjacent cell main body 1, or the negative convex bolt 21 of one cell main body 1 is connected with the positive concave bolt 32 of the adjacent cell main body 1.
Since the negative electrode plugs 22 and the positive electrode plugs 32 have the same structure, and the negative electrode plugs 21 and the positive electrode plugs 31 have the same structure, various series-parallel structures of the cell main body 1 can be realized.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and should not be construed as limiting the present 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 (10)
1. A battery pack with a plurality of battery cell main bodies (1) in plug-in connection with positive and negative electrode poles comprises a negative electrode pole (2) and a positive electrode pole (3) in each battery cell main body (1),
the cathode pole (2) on any one cell main body (1) is inserted with the anode pole (3) and/or the cathode pole (2) on the adjacent cell main body (1);
the method is characterized in that: the negative pole column (2) is positioned at one end of the cell main body (1), and the positive pole column (3) is positioned at the other end of the cell main body (1);
the negative pole post (2) comprises a negative pole convex bolt (21) and a negative pole concave bolt (22), the negative pole convex bolt (21) is positioned on one side of the battery cell main body (1), and the negative pole concave bolt (22) is positioned on the other side of the battery cell main body (1);
the positive pole column (3) comprises a positive convex bolt (31) and a positive concave bolt (32), the positive convex bolt (31) is positioned on one side of the battery cell main body (1), and the positive concave bolt (32) is positioned on the other side of the battery cell main body (1).
2. The battery pack with the battery cell provided with the positive and negative electrode posts inserted and connected in the manner of claim 1, wherein: the negative pole post (2) and the positive pole post (3) are arranged along the height direction of the battery cell main body (1).
3. The battery pack with the battery cell provided with the positive and negative electrode posts inserted and connected in the manner of claim 1, wherein: the negative convex bolt (21) comprises a negative limiting plate (211), a negative connecting plate (212), a negative first contact piece (213) and a negative protrusion (214), the negative limiting plate (211) is parallel to the side surface of the battery cell main body (1), and the negative connecting plate (212) is arranged between the negative limiting plate (211) and the negative pole post (2); the negative electrode first contact piece (213) is arranged on the side surface of the negative electrode connecting plate (212), and the negative electrode first contact piece (213) is arranged along the height direction of the negative electrode connecting plate (212); the negative electrode protrusion (214) is arranged on the negative electrode first contact piece (213), and the negative electrode protrusion (214) is arranged along the height direction of the negative electrode first contact piece (213).
4. The battery pack with the battery cell provided with the positive and negative electrode posts inserted and connected in the manner of claim 3, wherein: the negative electrode concave bolt (22) comprises a negative electrode limiting groove (221), a negative electrode connecting groove (222), a negative electrode second contact piece (223) and a negative electrode recess (224), the negative electrode limiting groove (221) is parallel to the side face of the battery core main body (1), the negative electrode connecting groove (222) is parallel to the negative electrode connecting plate (212), and the negative electrode limiting groove (221) is communicated with the negative electrode connecting groove (222); the negative pole second contact piece (223) is arranged on the side face of the negative pole connecting groove (222), and the negative pole second contact piece (223) is arranged along the height direction of the negative pole connecting plate (212); the negative electrode recess (224) is provided on the negative electrode second contact piece (223), and the negative electrode recess (224) is provided along the height direction of the negative electrode second contact piece (223).
5. The battery pack with the battery cell provided with the positive and negative electrode posts inserted and connected in the manner of claim 4, wherein: the negative electrode limiting plate (211) is inserted into the negative electrode limiting groove (221), and the negative electrode connecting plate (212) is inserted into the negative electrode connecting groove (222).
6. The battery pack with the battery cell provided with the positive and negative electrode posts inserted and connected in the manner of claim 5, wherein: the negative first contact piece (213) is electrically connected with the negative second contact piece (223); the negative electrode bulge (214) and the negative electrode recess (224) are arranged in a matched mode.
7. The battery pack with the battery cells and the positive and negative electrode posts inserted and connected according to claim 6, wherein: the positive convex bolt (31) comprises a positive limiting plate (311), a positive connecting plate (312), a positive first contact piece (313) and a positive protrusion (314), the positive limiting plate (311) is parallel to the side face of the cell main body (1), and the positive connecting plate (312) is arranged between the positive limiting plate (311) and the positive pole column (3); the positive electrode first contact piece (313) is arranged on the side surface of the positive electrode connecting plate (312), and the positive electrode first contact piece (313) is arranged along the height direction of the positive electrode connecting plate (312); the positive electrode protrusion (314) is arranged on the positive electrode first contact piece (313), and the positive electrode protrusion (314) is arranged along the height direction of the positive electrode first contact piece (313).
8. The battery pack with the battery cell provided with the positive and negative electrode posts inserted and connected in the manner of claim 7, wherein: the positive concave bolt (32) comprises a positive limiting groove (321), a positive connecting groove (322), a positive second contact piece (323) and a positive recess (324), the positive limiting groove (321) is parallel to the side face of the electric core main body (1), the positive connecting groove (322) is parallel to the positive connecting plate (312), and the positive limiting groove (321) is communicated with the positive connecting groove (322); the positive concave bolt (32) further comprises a positive second contact piece (323) arranged on the side surface of the positive connecting groove (322), and the positive second contact piece (323) is arranged along the height direction of the positive connecting plate (312); the positive electrode recess (324) is provided on the positive electrode second contact piece (323), and the positive electrode recess (324) is provided along the height direction of the positive electrode second contact piece (323).
9. The battery pack with the battery cell provided with the positive and negative electrode posts inserted and connected in the manner of claim 8, wherein: the positive limiting plate (311) is inserted into the positive limiting groove (321), and the positive connecting plate (312) is inserted into the positive connecting groove (322).
10. The battery pack with an electric core and a positive and negative electrode posts inserted and connected according to claim 9, wherein: the positive first contact piece (313) is in conductive connection with the positive second contact piece (323); the positive electrode bulge (314) and the positive electrode recess (324) are mutually matched.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222031795.5U CN217956073U (en) | 2022-08-03 | 2022-08-03 | Battery pack with inserted positive and negative electrode posts of battery core |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222031795.5U CN217956073U (en) | 2022-08-03 | 2022-08-03 | Battery pack with inserted positive and negative electrode posts of battery core |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217956073U true CN217956073U (en) | 2022-12-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222031795.5U Active CN217956073U (en) | 2022-08-03 | 2022-08-03 | Battery pack with inserted positive and negative electrode posts of battery core |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217956073U (en) |
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2022
- 2022-08-03 CN CN202222031795.5U patent/CN217956073U/en active Active
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