CN205104552U - Square electric core parallel connection structure - Google Patents
Square electric core parallel connection structure Download PDFInfo
- Publication number
- CN205104552U CN205104552U CN201520891035.9U CN201520891035U CN205104552U CN 205104552 U CN205104552 U CN 205104552U CN 201520891035 U CN201520891035 U CN 201520891035U CN 205104552 U CN205104552 U CN 205104552U
- Authority
- CN
- China
- Prior art keywords
- conductive metal
- battery core
- metal sheet
- negative pole
- fixedly connected
- 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.)
- Expired - Fee Related
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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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- Connection Of Batteries Or Terminals (AREA)
Abstract
(B, ) the utility model relates to an electric motor car battery field. The utility model provides a (B, ) (b) square electric core parallel connection structure, a plurality of square electric core neatly arranged point -blank, electric core positive pole is located a straight line, electric core negative pole is located a straight line, every electricity core positive pole and every fixedly connected with conductive metal piece on the electricity core negative pole, fixedly connected with conductive metal structure between the anodal and conductive metal piece of the electric core of a plurality of square electric cores, another conductive metal structure of fixedly connected with between the electric core negative pole of a plurality of square electric cores and the conductive metal piece. The utility model discloses carry out fixed connection through the mode of spot welding between electrode, conductive metal piece and the conductive metal structure of electricity core, improved the firm degree of connecting between the electric core, carry out the electric conductive metal structure of connecting with needs simultaneously and pass through the mode fixed connection of secondary spot welding in the electrode of electric core, further improved firm degree and reliability that a plurality of electric cores are connected. (B, )
Description
Technical field
the utility model relates to field of batteries, particularly a kind of parallel connection structure of multiple square electric cell.
Background technology
along with maturation and the development of lithium battery technology, start to apply lithium battery widely in electric automobile field, wherein quadrate lithium battery due to monomer capacity high, structure is simple, the battery pack battery core quantity of same capacity reduces, thus alleviate the burden of battery management system (BMS), be conducive to the safe operation of battery pack.The service requirement battery pack of automobile has enough discharge capabilities, and usual way uses battery core group technology the battery core of low capacity low-voltage to be formed high voltage by series-parallel system, High Output Current, jumbo battery pack.
batteries of electric automobile in groups main method is first connected after the battery core parallel connection in groups of some again.Now conventional battery core parallel technology is holed on the lug of square electric cell, simultaneously copper rectangular prefabricated screw, then by screw (usually with stainless steel), copper bar is connected with lug.
although copper rectangular conductive radiator performance is all better.But during the structure adopting screw to connect, the tightness that screw can be made to connect due to vibrations during automobile Long-Time Service reduces, there is the risk got loose, once get loose, screw just may cause short circuit in battery pack, get loose the lug loose contact located, and may produce electric spark, and the danger that battery fires occurs.Simultaneously due to the prefabricated screw of needs, and hole on lug, add operation, reduce production efficiency, manufacturing cost uprises.
Utility model content
the purpose of this utility model is to provide one to be connected firmly, the square electric cell parallel connection structure of use safety, and the utility model provides following technical scheme:
a kind of square electric cell parallel connection structure, multiple square electric cell proper alignment point-blank, battery core positive pole is positioned on straight line, battery core negative pole is positioned on straight line, each described battery core positive pole and each described battery core negative pole are fixedly connected with conductive metal sheet, be fixedly connected with conductive metal structure part between the battery core positive pole of described multiple square electric cell and conductive metal sheet, between the battery core negative pole of described multiple square electric cell and conductive metal sheet, be fixedly connected with another conductive metal structure part.
as a kind of preferred version of the present utility model, described conductive metal sheet is Z-shaped structure, and one end of described conductive metal sheet is fixedly connected on described battery core positive pole or battery core negative pole.
as another kind of preferred version of the present utility model, a described conductive metal structure part is fixedly connected between the conductive metal sheet other end and described battery core positive pole, and another conductive metal structure part described is fixedly connected between the conductive metal sheet other end and described battery core negative pole.
as another preferred version of the present utility model, mode by welding between described conductive metal sheet with described battery core positive pole/battery core negative pole is fixedly connected with, and described conductive metal structure part is fixedly connected with by the mode of welding with between conductive metal sheet and battery core positive pole/battery core negative pole.
as another preferred version of the present utility model, the material of described conductive metal sheet and conductive metal structure part is nickel plating steel disc.
as another preferred version of the present utility model, described conductive metal structure part comprises weld part and extension two parts, on described weld part, corresponding battery core positive pole or battery core negative pole position offer through hole, and described conductive metal sheet is through through hole, and two ends lay respectively at the both sides of described weld part.
the utility model advantage is:
1, connection is fixed by the mode of spot welding between the electrode of the utility model battery core, conductive metal sheet and conductive metal structure part, improve the firmness connected between battery core, the conductive metal structure part needing to carry out being electrically connected is fixedly connected on the electrode of battery core simultaneously by the mode of secondary spot welding, further increases firmness and the reliability of the connection of multiple battery core;
2, the utility model connection adopts the mode of spot welding to connect, and compare on conventional lug and hole, pre-threaded hole on copper bar, operation is few, and production efficiency is high;
3, conductive metal sheet of the present utility model and conductive metal structure part use nickel-plated steel material, compare conventional copper bar, reduce production cost to a great extent, increase economic efficiency.
Accompanying drawing explanation
fig. 1 is the utility model perspective view;
fig. 2 is the utility model structure vertical view;
fig. 3 is the utility model structure right view;
fig. 4 is part A enlarged drawing in Fig. 3.
number in the figure is:
1-square electric cell, 11-battery core positive pole, 12-battery core negative pole
2-conductive metal sheet, 3-conductive metal structure part, 31-weld part
311-through hole, 32-extension, 4-spot welding electrode rod
Embodiment
below in conjunction with accompanying drawing, preferred embodiment of the present utility model is described in detail, to make advantage of the present utility model and feature can be easier to be readily appreciated by one skilled in the art, thus more explicit defining is made to protection range of the present utility model.
as shown in part A enlarged drawing in accompanying drawing 1 the utility model perspective view, accompanying drawing 2 the utility model structure vertical view, accompanying drawing 3 the utility model structure right view and accompanying drawing 4 Fig. 3, it is row that multiple square electric cell 1 is fitly arranged, all battery core positive poles 11 are positioned on straight line, and all battery core negative poles 12 are positioned on straight line.Each battery core positive pole 11 and each battery core negative pole 12 are welded with Z-shaped conductive metal sheet 2, one end of conductive metal sheet 2 is fixedly welded on battery core positive pole 11/ battery core negative pole 12, forms a space between the other end of conductive metal sheet 2 and battery core positive pole 11/ battery core negative pole 12.
conductive metal structure part 3 comprises weld part 31 and extension 32.Weld part 31 is connected with the battery core positive pole 11/ battery core negative pole 12 of square electric cell, and extension 32 is connected with needing the external system of powering.Weld part 31 is a string configuration, this weld part 31 is installed on the space of battery core positive pole 11/ battery core negative pole 12 and conductive metal sheet 2, be clamped between battery core positive pole 11/ battery core negative pole 12 and conductive metal sheet 2, secondary spot welding is carried out by spot welding electrode rod 4 pairs of weld parts 31, conductive metal sheet 2 and battery core positive pole 11/ battery core negative poles 12, finally obtaining the conductive metal structure part 3 be reliably connected with battery core positive pole 11/ battery core negative pole 12, providing reliable power-supply system for needing the external system of power supply.
in the present embodiment, the L-shaped structure of conductive metal structure part 3, between weld part 31 and extension 32 at right angles.The position that the middle part of weld part 31 is connected with battery core positive pole 11/ battery core negative pole 12 offers through hole 311.Z-shaped conductive metal sheet 2 on the battery core positive pole 11/ battery core negative pole 12 of middle several battery core is through this through hole, the two ends of conductive metal sheet 2 lay respectively at the both sides of weld part 31, and the two ends of conductive metal sheet 2, one end is welded in battery core positive pole 11/ battery core negative pole 12, and one end is welded in the surface of weld part 31 side.
conductive metal sheet 2 in the present embodiment and conductive metal structure part 3 all use nickel plating steel disc, effectively reduce production cost.
the above; be only embodiment of the present utility model; but protection range of the present utility model is not limited thereto; any those of ordinary skill in the art are in the technical scope disclosed by the utility model; the change can expected without creative work or replacement, all should be encompassed within protection range of the present utility model.Therefore, the protection range that protection range of the present utility model should limit with claims is as the criterion.
Claims (6)
1. a square electric cell parallel connection structure, it is characterized in that: multiple square electric cell (1) proper alignment point-blank, battery core positive pole (11) is positioned on straight line, battery core negative pole (12) is positioned on straight line, each described battery core positive pole (11) and each described battery core negative pole (12) are fixedly connected with conductive metal sheet (2), conductive metal structure part (3) is fixedly connected with between the battery core positive pole (11) of described multiple square electric cell (1) and conductive metal sheet (2), another conductive metal structure part (3) is fixedly connected with between the battery core negative pole (12) of described multiple square electric cell (1) and conductive metal sheet (2).
2. a kind of square electric cell parallel connection structure according to claim 1, it is characterized in that: described conductive metal sheet (2) is Z-shaped structure, one end of described conductive metal sheet (2) is fixedly connected on described battery core positive pole (11) or battery core negative pole (12).
3. a kind of square electric cell parallel connection structure according to claim 2, it is characterized in that: a described conductive metal structure part (3) is fixedly connected between conductive metal sheet (2) other end and described battery core positive pole (11), another conductive metal structure part (3) described is fixedly connected between conductive metal sheet (2) other end and described battery core negative pole (12).
4. according to a kind of square electric cell parallel connection structure in claims 1 to 3 described in any one, it is characterized in that: the mode by welding between described conductive metal sheet (2) with described battery core positive pole (11)/battery core negative pole (12) is fixedly connected with, described conductive metal structure part (3) is fixedly connected with by the mode of welding with between conductive metal sheet (2) and battery core positive pole (11)/battery core negative pole (12).
5. according to a kind of square electric cell parallel connection structure in claims 1 to 3 described in any one, it is characterized in that: the material of described conductive metal sheet (2) and conductive metal structure part (3) is nickel plating steel disc.
6. a kind of square electric cell parallel connection structure according to claim 2, it is characterized in that: described conductive metal structure part (3) comprises weld part (31) and extension (32) two parts, the upper corresponding battery core positive pole (11) of described weld part (31) or battery core negative pole (12) position offer through hole (311), described conductive metal sheet (2) is through through hole (311), and two ends lay respectively at the both sides of described weld part (31).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520891035.9U CN205104552U (en) | 2015-11-10 | 2015-11-10 | Square electric core parallel connection structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520891035.9U CN205104552U (en) | 2015-11-10 | 2015-11-10 | Square electric core parallel connection structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205104552U true CN205104552U (en) | 2016-03-23 |
Family
ID=55520310
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520891035.9U Expired - Fee Related CN205104552U (en) | 2015-11-10 | 2015-11-10 | Square electric core parallel connection structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205104552U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105870392A (en) * | 2016-05-13 | 2016-08-17 | 深圳市科陆电子科技股份有限公司 | Electrode, battery cell, battery module, as well as preparation method and application of battery module |
-
2015
- 2015-11-10 CN CN201520891035.9U patent/CN205104552U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105870392A (en) * | 2016-05-13 | 2016-08-17 | 深圳市科陆电子科技股份有限公司 | Electrode, battery cell, battery module, as well as preparation method and application of battery module |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160323 Termination date: 20191110 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |