CN204792951U - Power type arc -welding block - Google Patents
Power type arc -welding block Download PDFInfo
- Publication number
- CN204792951U CN204792951U CN201520489059.1U CN201520489059U CN204792951U CN 204792951 U CN204792951 U CN 204792951U CN 201520489059 U CN201520489059 U CN 201520489059U CN 204792951 U CN204792951 U CN 204792951U
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- China
- Prior art keywords
- welding
- top cover
- burst disk
- explosion
- power type
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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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- Sealing Battery Cases Or Jackets (AREA)
- Laser Beam Processing (AREA)
Abstract
The utility model provides a power type arc -welding block, including top cap, explosion -proof piece, connection piece and sealing washer, top cap, explosion -proof piece and connection piece from the top down arrange in proper order and arrange in in the sealing washer, be equipped with the cage ring between explosion -proof piece and the connection piece, explosion -proof piece with the top cap adopts the welding seam to connect. The utility model provides a power type arc -welding block, explosion -proof piece with adopt being connected of top cap the arc welding seam with skin weld on explosion -proof piece tip and the top cap together, when having avoided adopting laser spot welding cause explosion -proof burn -through battery leakage's problem, simultaneously, has simplified welded technology and has reduced the welding cost.
Description
Technical field
The utility model relates to technical field of lithium ion, particularly relates to a kind of power type arc-welding block.
Background technology
On lithium ion battery, positive pole is provided with block, and general block comprises top cover, burst disk, cage ring, brace and sealing ring, and wherein, burst disk, cage ring and brace are for be set in together successively, and profile is circular.
As shown in Figure 3-4, connection between the burst disk 2 of power type block and top cover 1 is that the solder joint 8 formed by laser spot welding realizes connecting, normal welding is welded to burst disk 2 downwards from top cover 1, general top cover 1 thickness is 0.4mm-0.5mm, burst disk 2 thickness is 0.3mm, in order to ensure firmness during welding, the leg degree of depth of solder joint 8 at least will at more than 0.2mm, because the energy comparison of laser spot welding is concentrated, the leg degree of depth of solder joint 8 is wayward, adopt this welding Fang Yi by burst disk 2 lower surface burn-through, cause battery leakage, reduce ex factory pass rate and the production efficiency of battery, in addition, laser spot welding equipment purchase or the price of renting also somewhat expensive, the cost of battery can be increased.
Utility model content
Technical problem to be solved in the utility model is: in order to overcome deficiency of the prior art, the utility model provides a kind of power type arc-welding to block a shot, the connection of burst disk and top cover adopts arc-shaped welding seam to be welded together in burst disk end and top cover upper surface, solves the problem that laser spot welding burn-through causes battery leakage.
The utility model solves the technical scheme that its technical problem will adopt: a kind of power type arc-welding block, comprise top cover, burst disk, brace and sealing ring, described top cover, burst disk and brace are arranged successively from top to bottom and are placed in described sealing ring, be provided with cage ring between described burst disk and brace, described burst disk and described top cover adopt solder design.Adopt the mode weld seam of arc-welding burst disk and top cover to be welded together, weld seam only realizes the connection on surface, therefore, solves the problem that burst disk burn-through causes battery leakage.
Further, described weld seam is arc.Arc-shaped welding seam is that the place contacted with top cover along burst disk edge is welded, and can make that welding effect is better, appearance looks elegant, connection be more firm.
Further, described burst disk edge is provided with the bound edge holding top cover edge, and the upper surface of described bound edge end and side are welded together by the upper surface of described weld seam and described top cover.Arc-welding, by the surface of solder fusing at burst disk and top cover, by forming weld seam after solder cools, making burst disk and top cover link together, simplifying welding procedure, reduce cost.
Concrete, the section of described bound edge is the U-lag of opening towards top cap central direction.
Further, in order to ensure reliable connection, described weld seam is at least two, is uniformly distributed along bound edge edge circumference.
The beneficial effects of the utility model are: a kind of power type arc-welding block that the utility model provides, the connection of burst disk and top cover adopts arc-shaped welding seam to be welded together in burst disk end and top cover upper surface, avoid problem when adopting laser spot welding, burst disk burn-through being caused battery leakage, meanwhile, simplify the technique of welding and reduce welding cost.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the utility model is described in further detail.
Fig. 1 is the structural representation of most preferred embodiment of the present utility model.
Fig. 2 is the structural representation of weld seam in Fig. 1.
Fig. 3 is the structural representation of prior art medium power type laser spot welding block.
Fig. 4 is the structural representation of solder joint in Fig. 3.
In figure: 1, top cover, 2, burst disk, 3, brace, 4, sealing ring, 5, cage ring, 6, bound edge, 7, weld seam, 8, solder joint.
Embodiment
By reference to the accompanying drawings the utility model is described in detail now.This figure is the schematic diagram simplified, and only basic structure of the present utility model is described in a schematic way, therefore it only shows the formation relevant with the utility model.
As shown in Figure 1-2, a kind of power type arc-welding block of the present utility model, comprise top cover 1, burst disk 2, brace 3 and sealing ring 4, top cover 1, burst disk 2 and brace 3 are arranged successively from top to bottom and are placed in sealing ring 4, cage ring 5 is provided with between burst disk 2 and brace 3, cage ring 5 and all adopt interference fit between burst disk 2 and brace 3, burst disk 2 edge is provided with the bound edge 6 holding top cover 1 edge, the section of bound edge 6 is the U-lag of opening towards top cover 1 center position, the upper surface of bound edge 6 end and side are welded together by the upper surface of weld seam 7 with top cover 1.Weld seam 7 adopts arc welding to form, and arc-welding is by solder fusing on the surface of burst disk 2 with top cover 1, and by forming weld seam 7 after solder cools, burst disk 2 and top cover 1 are linked together, and which simplifies welding procedure, reduces cost.Weld seam 7 realizes the connection on surface, therefore, solves the problem that burst disk 2 burn-through causes battery leakage.In order to make that welding effect is better, appearance looks elegant, connection be more firm, and weld seam 7 is arc-shaped welding seams 7 that the place contacted with top cover 1 along burst disk 2 edge is welded.Weld seam 7 is at least two, is uniformly distributed along bound edge 6 edge circumference, and also can form closed circle weld seam 7 along the whole edge of bound edge 6, in the present embodiment, weld seam 7 is two, distributes along bound edge 6 edge radial symmetric.
With above-mentioned according to desirable embodiment of the present utility model for enlightenment, by above-mentioned description, relevant staff not departing from scope of the present utility model, can carry out various change and amendment completely.The technical scope of this utility model is not limited to the content on specification, must determine its technical scope according to right.
Claims (5)
1. a power type arc-welding block, comprise top cover (1), burst disk (2), brace (3) and sealing ring (4), described top cover (1), burst disk (2) and brace (3) are arranged successively from top to bottom and are placed in described sealing ring (4), be provided with cage ring (5) between described burst disk (2) and brace (3), it is characterized in that: described burst disk (2) and described top cover (1) adopt weld seam (7) to be connected.
2. power type arc-welding block as claimed in claim 1, is characterized in that: described weld seam (7) is arc.
3. power type arc-welding block as claimed in claim 2, it is characterized in that: described burst disk (2) edge is provided with the bound edge (6) holding top cover (1) edge, the upper surface of described bound edge (6) end and side are welded together by the upper surface of described weld seam (7) with described top cover (1).
4. power type arc-welding block as claimed in claim 3, is characterized in that: the section of described bound edge (6) is the U-lag of opening towards top cover (1) center position.
5. power type arc-welding block as claimed in claim 1, is characterized in that: described weld seam (7) is at least two, is uniformly distributed along bound edge (6) edge circumference.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520489059.1U CN204792951U (en) | 2015-07-08 | 2015-07-08 | Power type arc -welding block |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520489059.1U CN204792951U (en) | 2015-07-08 | 2015-07-08 | Power type arc -welding block |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204792951U true CN204792951U (en) | 2015-11-18 |
Family
ID=54532944
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520489059.1U Active CN204792951U (en) | 2015-07-08 | 2015-07-08 | Power type arc -welding block |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204792951U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106299171A (en) * | 2016-09-05 | 2017-01-04 | 东莞市奕东电子有限公司 | A kind of power type lithium electricity capping structure |
| CN107492604A (en) * | 2017-08-02 | 2017-12-19 | 江苏镭腾能源科技有限公司 | A kind of dynamic lithium battery explosion-proof cap component |
-
2015
- 2015-07-08 CN CN201520489059.1U patent/CN204792951U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106299171A (en) * | 2016-09-05 | 2017-01-04 | 东莞市奕东电子有限公司 | A kind of power type lithium electricity capping structure |
| CN107492604A (en) * | 2017-08-02 | 2017-12-19 | 江苏镭腾能源科技有限公司 | A kind of dynamic lithium battery explosion-proof cap component |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: 213000 11 and 11-1 Jinghu Road, Wujin national hi tech Industrial Development Zone, Changzhou, Jiangsu, China Patentee after: Changzhou Wujin Zhong Rui electronic Polytron Technologies Inc Address before: 213161 801 people's road, Wujin District, Changzhou, Jiangsu Patentee before: Changzhou Wujin Zhongrui Electronics Co.,Ltd. |