CN103682229A - Method for realizing tight serial and parallel connection on cylindrical battery cells in battery pack - Google Patents
Method for realizing tight serial and parallel connection on cylindrical battery cells in battery pack Download PDFInfo
- Publication number
- CN103682229A CN103682229A CN201310738386.1A CN201310738386A CN103682229A CN 103682229 A CN103682229 A CN 103682229A CN 201310738386 A CN201310738386 A CN 201310738386A CN 103682229 A CN103682229 A CN 103682229A
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- China
- Prior art keywords
- battery core
- battery
- battery cells
- welded
- battery pack
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/50—Current conducting connections for cells or batteries
- H01M50/531—Electrode connections inside a battery casing
- H01M50/54—Connection of several leads or tabs of plate-like electrode stacks, e.g. electrode pole straps or bridges
-
- 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 invention discloses a method for realizing tight serial and parallel connection on cylindrical battery cells in a battery pack. According to the method, firstly, a plurality of battery cells which have the same appearances and are in cylindrical shapes are mutually parallelly gathered for forming several rows, then, bridge connection fixation is carried out at the round cross section part of each battery cell through welding connecting sheets for forming the battery pack consisting of a plurality of battery cells, and the single battery cell is connected with the adjacent electric cells in the current row through the welding connecting sheets and is also welded with one battery cell in the adjacent row, so the welding connecting sheets of the battery cell and other two connected battery cells form obtuse angle or acute angle fixed connection structures, and the two obtuse angle or acute angle fixed connection structures are connected into a Z shape. The method has the advantages that through a plurality of piled and gathered battery cells in the battery pack, the battery cells are adopted and are directly provided with Z-shaped or square-shaped welding connecting sheets, so the battery cells realize the serial and parallel connection conduction on the circuit structure, and in addition, the piled and gathered battery cells cannot easily become loose like solid gum or fixing support frames.
Description
Technical field:
The present invention relates to electric core construct in battery pack, particularly a kind of method that realizes the tight connection in series-parallel connection of cylindrical battery core in battery pack by improving weld tabs.
Background technology:
Current, direct current large-capacity battery pack, the connected mode of its inner battery core is to use strip weld tabs.Specifically, be by a plurality of tubular battery cores 100 being arranged in a row, then utilizing strip weld tabs 110 to carry out butt-joint with the battery core of arranging and realize.Its pattern as shown in Figure 1.
Yet there is following shortcoming in this connected mode:
1, the combining form of adjacent battery core is single, dumb, is unfavorable for the connection of large-sized battery pack.
2, between battery core and battery core, be connected not closely, unstable, need other outside auxiliary material that it is closely connected, as double faced adhesive tape, support etc.
3. the workman that butt-joint needs high-precision localization tool and needs skilled operation, thus production cost and difficulty in a disguised form increased.
Summary of the invention:
In view of above-mentioned technical problem, the invention provides a kind of method that in battery pack, the tight connection in series-parallel of cylindrical battery core connects that is used for realizing.The method is by the battery core to a plurality of heaps are got together in battery pack, employing directly arranges the sheet that is welded to connect of " Z " shape or " mouth " shape in these battery cores, make outside the connection in series-parallel conducting of these battery cores on realizing circuit structure, can also be not easy loose to the battery core that makes heap get together as solid gum or fixed support, and then further facilitate and simplify the preparation process of battery pack, improved production efficiency.
Concrete scheme of the present invention is as follows:
A kind of method that is used for realizing the tight connection in series-parallel connection of cylindrical battery core in battery pack, it is characterized in that, described first a plurality of profiles are identical and become tubular battery core to be parallel to each other to gather to form many rows, then by being welded to connect sheet, then form the battery pack being formed by a plurality of battery cores the circular cross section place of each battery core bridge joint is fixing; Described single battery core is arranged adjacent battery core except connecting this by being welded to connect sheet, also with adjacent row in the welding of battery core, make the sheet that is welded to connect of the battery core that this battery core is connected with two other become obtuse angle or acute angle fixed connection structure, by above-mentioned two obtuse angles or two acute angle fixed connection structures, be linked to be " Z " shape.
In such scheme, described single battery core is arranged adjacent battery core except connecting this by being welded to connect sheet, also with adjacent row in the welding of battery core, what make battery core that this battery core is connected with two other is welded to connect the sheet fixed connection structure that meets at right angles, and by above-mentioned four right angle fixed connection structures, is linked to be " mouth " shape.
In such scheme, described in to be welded to connect sheet be metal nickel strap.
The method that the tight connection in series-parallel of battery core of the present invention connects is compared and is had with traditional strip weld tabs:
1, the weld tabs geometrical shape stability in the inventive method, forms triangle or square fixing, and smooth not yielding, easy operating, is particularly suitable for large-sized battery pack.
2, due to the triangle rock-steady structure of weld tabs inherence, the size between each solder joint is fixed, and has the function of quick location and fool proof.Alleviated the dependence of traditional handicraft to high accuracy battery core localization tool and operating personnel's qualification.
3, in addition, " Z " shape in the method or " mouth " shape weld tabs combine and can adapt to different battery core combinations from rectangular weld tabs type.
Accompanying drawing explanation:
Below in conjunction with the drawings and specific embodiments, further illustrate the present invention.
Fig. 1 is the structure chart of battery pack bonding pad used in the prior art.
Fig. 2 is the structure chart of " Z " shape bonding pad in the embodiment 1 of the method for the invention.
Fig. 3 is the structure chart of " mouth " shape bonding pad in the embodiment 1 of the method for the invention.
Embodiment:
For technological means, creation characteristic that the present invention is realized, reach object and effect is easy to understand, below in conjunction with concrete diagram, further set forth the present invention.
As shown in Figure 2, it is first embodiment that is used for realizing in the method that in battery pack, the tight connection in series-parallel of cylindrical battery core connects of the present invention.In this embodiment, first that a plurality of profiles are identical and become tubular battery core 200 to be parallel to each other to gather to form many rows.Then by being welded to connect sheet 210 (adopting and being welded to connect sheet is metal nickel strap) here, at the circular cross section place of each battery core 200 bridge joint, fixing and then form the battery pack being formed by a plurality of battery cores; Wherein single battery core 200 is arranged adjacent battery core 211 except connecting this by being welded to connect sheet 210, also with adjacent row in a battery core 212 welding, the battery core (211 that this battery core 200 is connected with two other; 212) the sheet that is welded to connect becomes obtuse angle (X) 221 or acute angle (Y) 222 fixed connection structures, by 221 or two acute angles in above-mentioned two obtuse angles (X) (Y), 222 fixed connection structures, is linked to be " Z " shape 230.
As shown in Figure 3, it is second embodiment that is used for realizing in the method that in battery pack, the tight connection in series-parallel of cylindrical battery core connects of the present invention.In this embodiment, first that a plurality of profiles are identical and become tubular battery core 300 to be parallel to each other to gather to form many rows.Then by being welded to connect sheet 310 (adopting and being welded to connect sheet is metal nickel strap) here, at the circular cross section place of each battery core 300 bridge joint, fixing and then form the battery pack being formed by a plurality of battery cores; Wherein single battery core 300 is arranged adjacent battery core 311 except connecting this by being welded to connect sheet 310, also with adjacent row in 312 welding of battery core, the battery core (311 that this battery core 300 is connected with two other; 312) be welded to connect sheet (Z) 320 fixed connection structures that meet at right angles, by above-mentioned four right angles (Z) 320 fixed connection structures, be linked to be " mouth " shape 330.
According to above two embodiment, the strip weld tabs that the method for the invention adopts with conventional method is compared, and the weld tabs geometrical shape stability that it adopts forms triangle or square fixing, and smooth not yielding, easy operating, is particularly suitable for large-sized battery pack.Meanwhile, due to the triangle rock-steady structure of weld tabs inherence, the size between each solder joint is fixed, and has the function of quick location and fool proof.Alleviated the dependence of traditional handicraft to high accuracy battery core localization tool and operating personnel's qualification.In addition, in above-mentioned two embodiment, cited " Z " shape and " mouth " shape weld tabs combines and can adapt to different battery core combinations from rectangular weld tabs type.
More than show and described basic principle of the present invention and principal character and advantage of the present invention.The technical staff of the industry should understand; the present invention is not restricted to the described embodiments; that in above-described embodiment and specification, describes just illustrates principle of the present invention; without departing from the spirit and scope of the present invention; the present invention also has various changes and modifications, and these changes and improvements all fall in the claimed scope of the invention.The claimed scope of the present invention is defined by appending claims and equivalent thereof.
Claims (3)
1. one kind is used for realizing the method that in battery pack, the tight connection in series-parallel of cylindrical battery core connects, it is characterized in that, described first a plurality of profiles are identical and become tubular battery core to be parallel to each other to gather to form many rows, then by being welded to connect sheet, then form the battery pack being formed by a plurality of battery cores the circular cross section place of each battery core bridge joint is fixing; Described single battery core is arranged adjacent battery core except connecting this by being welded to connect sheet, also with adjacent row in the welding of battery core, make the sheet that is welded to connect of the battery core that this battery core is connected with two other become obtuse angle or acute angle fixed connection structure, by above-mentioned two obtuse angles or two acute angle fixed connection structures, be linked to be " Z " shape.
2. according to the method that is used for realizing the tight connection in series-parallel connection of cylindrical battery core in battery pack of claim 1, it is characterized in that, described single battery core is arranged adjacent battery core except connecting this by being welded to connect sheet, also with adjacent row in the welding of battery core, what make battery core that this battery core is connected with two other is welded to connect the sheet fixed connection structure that meets at right angles, and by above-mentioned four right angle fixed connection structures, is linked to be " mouth " shape.
According to claim 1 be used for realizing the method that the tight connection in series-parallel of cylindrical battery core in battery pack connects, it is characterized in that, described in to be welded to connect sheet be metal nickel strap.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310738386.1A CN103682229A (en) | 2013-12-21 | 2013-12-21 | Method for realizing tight serial and parallel connection on cylindrical battery cells in battery pack |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310738386.1A CN103682229A (en) | 2013-12-21 | 2013-12-21 | Method for realizing tight serial and parallel connection on cylindrical battery cells in battery pack |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103682229A true CN103682229A (en) | 2014-03-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310738386.1A Pending CN103682229A (en) | 2013-12-21 | 2013-12-21 | Method for realizing tight serial and parallel connection on cylindrical battery cells in battery pack |
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| CN (1) | CN103682229A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104393211A (en) * | 2014-12-05 | 2015-03-04 | 江苏天鹏电源有限公司 | Split type support connected 36V battery pack with good shock absorption effect |
| WO2023137799A1 (en) * | 2022-01-24 | 2023-07-27 | 福建时代星云科技有限公司 | Battery cell arrangement structure of battery pack, and arrangement method thereof |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20060193685A1 (en) * | 2005-02-14 | 2006-08-31 | Sat Akkumulatoren Technik Ag | Connecting element for connecting cells to form accumulators |
| CN101651189A (en) * | 2008-08-14 | 2010-02-17 | 苏州宝时得电动工具有限公司 | Battery pack |
-
2013
- 2013-12-21 CN CN201310738386.1A patent/CN103682229A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20060193685A1 (en) * | 2005-02-14 | 2006-08-31 | Sat Akkumulatoren Technik Ag | Connecting element for connecting cells to form accumulators |
| CN101651189A (en) * | 2008-08-14 | 2010-02-17 | 苏州宝时得电动工具有限公司 | Battery pack |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104393211A (en) * | 2014-12-05 | 2015-03-04 | 江苏天鹏电源有限公司 | Split type support connected 36V battery pack with good shock absorption effect |
| WO2023137799A1 (en) * | 2022-01-24 | 2023-07-27 | 福建时代星云科技有限公司 | Battery cell arrangement structure of battery pack, and arrangement method thereof |
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Application publication date: 20140326 |