CN206422104U - Cap assembly, secondary cell and laser welding system - Google Patents
Cap assembly, secondary cell and laser welding system Download PDFInfo
- Publication number
- CN206422104U CN206422104U CN201720091891.5U CN201720091891U CN206422104U CN 206422104 U CN206422104 U CN 206422104U CN 201720091891 U CN201720091891 U CN 201720091891U CN 206422104 U CN206422104 U CN 206422104U
- Authority
- CN
- China
- Prior art keywords
- closure
- cap assembly
- coping plate
- injection hole
- liquid injection
- 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.)
- Active
Links
Classifications
-
- 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
-
- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
Landscapes
- Laser Beam Processing (AREA)
- Sealing Battery Cases Or Jackets (AREA)
Abstract
The utility model provides a kind of cap assembly, secondary cell and laser welding system.Cap assembly includes：Coping plate, is provided with the liquid injection hole along the thickness direction insertion coping plate of coping plate；And first closure, above liquid injection hole and coping plate is welded in, to seal liquid injection hole；Cap assembly also includes：Second closure, is arranged at top, whole first closure of covering and the upper surface that coping plate is welded in around the first closure of the first closure, to seal the first closure and liquid injection hole.Because the second closure of cap assembly covers whole first closure, carrying out forming one of new weld seam when secondary welding is the second closure of welding, new weld seam is located at outside the profile of the former weld seam produced when once welding welds the first closure, so as to avoid the impurity on former weld seam from having undesirable effect secondary welding, the excellent rate, easy to operate of secondary welding is improved, and then improves the sealing effectiveness of liquid injection hole.
Description
Technical field
The utility model is related to secondary cell field, more particularly to a kind of cap assembly, secondary cell and laser welding system
System.
Background technology
Closure (is welded in coping plate, to seal note by the liquid injection hole sealing welding of secondary cell above liquid injection hole
Fluid apertures) it is last procedure that secondary cell is molded.Because of the diffusivity and attaching property of electrolyte, fluid injection hole surface is easily remained
A small amount of crystallization or the electrolyte of liquid, these electrolyte are a kind of impurity for laser welding, it is necessary to which cleaning is clean, otherwise
Pit and quick-fried point are easily produced after welding, causes failure welding, and then cause closure to the poor sealing of liquid injection hole.For
The cleaning of electrolyte, although employ the methods such as laser cleaning, artificial cleaning, but one suboptimum rate of welding is typically only capable to reach
99.5% or so to the closure of the secondary cell of failure welding, it is necessary to carry out secondary repair welding.The mode of old secondary repair welding is
Bad battery is put into equipment, welded again on the former welding track of closure and coping plate one time, this secondary welding side
The excellent rate of formula is only 80-90%, that is, has quite a few secondary cell to need to scrap, reason is that the impurity for causing failure welding has been deposited
It is in closure weld seam corresponding with the former welding track of coping plate, the welding effect that can not have been obtained is welded again, is entered
And the closure that can not have still obtained is to the sealing effectiveness of liquid injection hole.
Utility model content
In view of the defect that prior art is present, the purpose of this utility model is to provide a kind of cap assembly, secondary cell
And laser welding system, it can improve the sealing effectiveness of liquid injection hole.
To achieve these goals, in a first aspect, the utility model provides a kind of cap assembly, it includes：Top cover
Piece, is provided with the liquid injection hole along the thickness direction insertion coping plate of coping plate；And first closure, above liquid injection hole simultaneously
Coping plate is welded in, to seal liquid injection hole；Cap assembly also includes：Second closure, is arranged at the top of the first closure, covers
Cover whole first closure and the upper surface of coping plate is welded in around the first closure, to seal the first closure and fluid injection
Hole.
To achieve these goals, in second aspect, the utility model provides a kind of secondary cell, and it includes：Housing；
And the cap assembly according to the utility model first aspect, it is assemblied in housing.
To achieve these goals, in the third aspect, the utility model provides a kind of laser welding system, for welding
Cap assembly according to the utility model first aspect, including：Fixture, has：Locating aperture, insertion is simultaneously along the vertical direction
House the second closure；And lower fillet surface, be pressed against and the annular wall for the second closure of fitting annular chamfer so that second is close
Capping positions and fits in coping plate；And laser welder, launch laser to the annular groove of the second closure, it is close by second
Capping is welded in coping plate.
The beneficial effects of the utility model are as follows：
First closure is welded in coping plate correspondence and once welded, and the second closure is welded in the secondary weldering of coping plate correspondence
Connect, the bad cap assembly of welding effect (corresponding to secondary cell) need to carry out secondary welding during for once welding, due to top
Second closure of cap assemblies covers whole first closure, formed together when secondary welding is the second closure of welding
New weld seam, positioned at the former weld seam produced when once welding, (i.e. the first closure welds the weldering to be formed to new weld seam with coping plate
Seam) profile outside so that the impurity avoided on former weld seam has undesirable effect to secondary welding, improve the excellent of secondary welding
It is rate, easy to operate, and then improve the sealing effectiveness of liquid injection hole.
Brief description of the drawings
Fig. 1 is the partial exploded perspective view of cap assembly of the present utility model, wherein the second closure is removed；
Fig. 2 is the assembling figure of Fig. 1 cap assembly；
Fig. 3 is the enlarged drawing of Fig. 2 encircled portion, wherein, it is clear in order to illustrate, sealing nail is removed；
Fig. 4 is the stereogram of the second closure of Fig. 1 cap assembly；
Fig. 5 is the partial exploded perspective view of laser welding system of the present utility model and secondary cell of the present utility model,
Wherein the second closure of fixture and cap assembly is removed, the laser welder of laser welding system is not shown；
Fig. 6 is laser welding system of the present utility model showing in the welding job for secondary cell of the present utility model
It is intended to；
Fig. 7 is weldering of the laser welding system of the present utility model in the welding job for secondary cell of the present utility model
Schematic diagram before connecing；
Fig. 8 is the schematic diagram after secondary cell welding of the present utility model corresponding with Fig. 7.
Wherein, description of reference numerals is as follows：
The annular wall of B secondary cells 242
The medial surface of 1 housing 2421
The lower surface of 2 cap assembly 2422
The annular chamfer of 21 coping plate 2423
The annular boss of 211 upper surface 243
P21 assembles the internal perisporium of recess 2431
The annular groove of T1 thickness directions 244
22 liquid injection hole P24 empty avoiding recesses
23 first closures 25 sealing nail
24 second closure S laser welding systems
241 roof S1 fixtures
2411 basal surface S11 locating apertures
Fillet surface under 2412 periphery wall S12
2413 top surface S2 laser welders
Embodiment
Describe in detail with reference to the accompanying drawings according to cap assembly of the present utility model, secondary cell and laser welding system
System.
Illustrate the cap assembly according to the utility model first aspect first.
Referring to figs. 1 to Fig. 4, the cap assembly 2 of the utility model first aspect includes：Coping plate 21, is provided with along top cover
The liquid injection hole 22 of the thickness direction T1 insertions coping plate 21 of piece 21；And first closure 23, positioned at the top of liquid injection hole 22 and weld
Coping plate 21 is connected to, to seal liquid injection hole 22；Cap assembly 2 also includes：Second closure 24, is arranged at the first closure 23
Top, whole first closure 23 of covering are simultaneously welded in the upper surface 211 of coping plate 21 around the first closure 23, to seal the
One closure 23 and liquid injection hole 22.
In the cap assembly 2 of the utility model first aspect, the first closure 23 is welded in the correspondence of coping plate 21 once
Welding, the second closure 24 is welded in the corresponding secondary welding of coping plate 21, welding effect bad top cover during for once welding
Component 2 (corresponding to secondary cell B) need to carry out secondary welding, because the second closure 24 of cap assembly 2 covers whole first
Closure 23, is carrying out forming one of new weld seam when secondary welding is the second closure 24 of welding, new weld seam is located at once
Outside the profile of the former weld seam (i.e. the first closure 23 welds the weld seam formed with coping plate 21) produced during welding, so as to avoid
Impurity on former weld seam has undesirable effect to secondary welding, improves the excellent rate, easy to operate of secondary welding, and then improves
The sealing effectiveness of liquid injection hole 22.
As shown in Figure 3 and Figure 4, the second closure 24 has：Roof 241；Annular wall 242, the lower end from roof 241 is outside
Extension, the medial surface 2421 of annular wall 242 and the basal surface 2411 of roof 241 are spaced apart with the first closure 23, annular wall
242 medial surface 2421 and the basal surface 2411 of roof 241 form whole first closure 23 of covering and recessed upwards together
Empty avoiding recess P24, the lower surface 2422 of annular wall 242 is fitted and is welded in the upper surface 211 of coping plate 21.Empty avoiding recess P24
Whole first closure 23 is completely covered, so that the former weld seam produced when once welding be completely covered, improves sealing effectiveness.
Second closure 24 also has：Annular boss 243, is spaced with the periphery wall 2412 of roof 241 and positioned at roof 241
Outside；Annular groove 244, so that ring between the periphery wall 2412 of roof 241 and the internal perisporium 2431 of annular boss 243
Shape boss 243 is spaced apart with the periphery wall 2412 of roof 241, and the opening upwards of annular groove 244.Using laser welding described later
When system S welds secondary cell B described later, laser welding system S fixture S1 coordinates cap assembly 2 to install, laser welding system
The laser that system S laser welder S2 is sent is incident from the centre position of annular groove 244, is welded along the circular trace of annular groove 244
Connect a circle.Reference picture 7 and Fig. 8, after laser is injected into cap assembly 2, a part of reflection laser is by the both sides of annular groove 244
Annular boss 243, annular wall 242, even roof 241 are absorbed, and annular boss 243 is melted to contract, fills annular groove 244
Form deeper molten bath so that welding line structure intensity is higher, moreover it is possible to reduce the welding slag outwards splashed to a certain extent.
The top surface 2432 of annular boss 243 is less than the top surface 2413 of roof 241.
Annular wall 242 also has：Annular chamfer 2423, is connected to the bottom of annular boss 243 and downwardly and outwardly inclined
Ground extends.Annular chamfer 2423 and laser welding system S of the present utility model described later fixture S1 lower fillet surface S12 are close
Laminating, for coordinating positioning of the fixture S1 to the second closure 24, melted by heat forms certain melting pool shape after welding.
Coping plate 21 is additionally provided with：Assemble recess P21, be opened on coping plate 21 and positioned at the top of liquid injection hole 22 and with note
Fluid apertures 22 is connected, and the first closure 23 is welded in assembling recess P21 and opened with the head clearance of liquid injection hole 22.
Cap assembly 2 also includes：Sealing nail 25, positioned at the lower section of the first closure 23, inserts and blocks liquid injection hole 22.
Chamfering or fillet are provided between the medial surface 2421 and lower surface 2422 of annular wall 242.
The central axis of the central axis of first closure 23, the central axis of the second closure 24 and liquid injection hole 22 exists
On same vertical axis.Help to position the first closure 23 using laser welding system S described later fixture S1 in welding
The central axis of central axis, the central axis of the second closure 24 and liquid injection hole 22 is on same vertical axis.
Secondly the secondary cell according to the utility model second aspect is illustrated.
Reference picture 5 and Fig. 6, the secondary cell B of the utility model second aspect include：Housing 1；And it is new according to this practicality
Cap assembly 2 described in type first aspect, is assemblied in housing 1.
In the secondary cell B of the utility model second aspect, the shape of annular boss 243 and annular groove 244 is in welding
It can change, but be existed based on the design of the size of annular groove 244, annular boss 243 and annular groove 244 after preceding and welding
It can still may retain after welding with welding preceding similar concaveconvex shape.
Finally illustrate the laser welding system according to the utility model third aspect.
Reference picture 5 is to Fig. 8, the laser welding system S of the utility model third aspect, for welding according to the utility model
Cap assembly 2 described in first aspect, including：Fixture S1, has：Locating aperture S11, along the vertical direction insertion and collecting second
Closure 24；And lower fillet surface S12, be pressed against and the annular wall 242 for the second closure 24 of fitting annular chamfer 2423 so that
Second closure 24 positions and fits in coping plate 21；And laser welder S2, sent out to the annular groove 244 of the second closure 24
Laser is penetrated, the second closure 24 is welded in coping plate 21.Wherein, YAG pulsed laser welders can be used in laser welder S2,
Continuous laser bonding machine can also be used.
It is used to weld the second closure 24 according to the laser welding system S of the utility model third aspect fixture S1
Positioned in preceding and weldering, and the second closure 24 is tilted during preventing secondary welding.
Using the top of laser welding system S sealing weldings first aspect containing the utility model of the utility model third aspect
The secondary cell B of cap assemblies 2 welding process is：
S1：Producing line picks out the secondary cell B of a failure welding, removes the welding slag of bad secondary cell B surface, weldering
Slag height of projection is less than the empty avoiding recess P24 of the second closure 24, is put into the second closure 24 in the top of the first closure 23, makes
The second closure 24 is obtained to fit completely with the upper surface 211 of coping plate 21
S2：Be put into fixture S1, using fixture S1 lower fillet surface S12 and the second closure 24 annular wall 242 annular
Chamfering 2423 is fitted, to be positioned to the second closure 24 so that the central axis of the first closure 23, the second closure 24
Central axis and the central axis of liquid injection hole 22 apply downward pressure on same vertical axis, and to the second closure 24
Power, prevents it to be upturned in welding process.
S3：The secondary cell B assembled, fixture S1 and the second closure 24 are put into the fixed bit of equipment (not shown)
Put, the laser head for starting servomotor (not shown) driving laser welder S2 in welding procedure, equipment (not shown) is close to second
Capping 24 annular groove 244 position, transmitting laser and protection gas, along annular groove 244 counterclockwise or welded clockwise it is big
In equal to a circle.
S4：Welding is finished, and secondary cell B is taken out in slave unit (not shown), removes fixture S1, visual inspection observation face of weld
After qualified, that is, complete secondary welding.
Claims (10)
1. a kind of cap assembly (2), including：
Coping plate (21), is provided with the liquid injection hole (22) along thickness direction (T1) the insertion coping plate (21) of coping plate (21)；With
And
First closure (23), above the liquid injection hole (22) and is welded in coping plate (21), to seal liquid injection hole (22)；
Characterized in that,
Cap assembly (2) also includes：
Second closure (24), is arranged at the top of the first closure (23), covers whole first closure (23) and around the
One closure (23) is welded in the upper surface (211) of coping plate (21), to seal the first closure (23) and liquid injection hole (22).
2. cap assembly (2) according to claim 1, it is characterised in that the second closure (24) has：
Roof (241)；
Annular wall (242), stretches out from the lower end of roof (241), the medial surface (2421) and roof of annular wall (242)
(241) basal surface (2411) is spaced apart with the first closure (23), the medial surface (2421) and roof of annular wall (242)
(241) basal surface (2411) is formed together covers whole first closure (23) and empty avoiding recess (P24) recessed upwards, ring
Lower surface (2422) laminating of shape wall (242) and the upper surface (211) for being welded in coping plate (21).
3. cap assembly (2) according to claim 2, it is characterised in that the second closure (24) also has：
Annular boss (243), is spaced with the periphery wall (2412) of roof (241) and positioned at the outside of roof (241)；
Annular groove (244), positioned at roof (241) periphery wall (2412) and annular boss (243) internal perisporium (2431) it
Between so that annular boss (243) is spaced apart with the periphery wall (2412) of roof (241), and annular groove (244) opening upwards.
4. cap assembly (2) according to claim 3, it is characterised in that the top surface (2432) of annular boss (243) is low
Top surface (2413) in roof (241).
5. cap assembly (2) according to claim 2, it is characterised in that annular wall (242) also has：
Annular chamfer (2423), is connected to the bottom of annular boss (243) and downwardly and outwardly inclined extends.
6. cap assembly (2) according to claim 1, it is characterised in that coping plate (21) is additionally provided with：
Recess (P21) is assembled, is opened on coping plate (21) and is located above liquid injection hole (22) and is connected with liquid injection hole (22), the
One closure (23) is welded in assembling recess (P21) and opened with the head clearance of liquid injection hole (22).
7. cap assembly (2) according to claim 6, it is characterised in that cap assembly (2) also includes：
Sealing nail (25), the lower section positioned at the first closure (23) is inserted and blocks liquid injection hole (22).
8. cap assembly (2) according to claim 2, it is characterised in that the medial surface (2421) of annular wall (242) and under
Chamfering or fillet are provided between surface (2422).
9. a kind of secondary cell (B), including：
Housing (1)；And
Cap assembly (2) according to any one of claim 1-8, is assemblied in housing (1).
10. a kind of laser welding system (S), for welding the cap assembly (2) described in claim 5, including：
Fixture (S1), has：
Locating aperture (S11), along the vertical direction insertion and house the second closure (24)；And
Lower fillet surface (S12), be pressed against and the annular wall (242) for the second closure (24) of fitting annular chamfer (2423) so that
Second closure (24) positions and fits in coping plate (21)；And
Laser welder (S2), launches laser to the annular groove (244) of the second closure (24), the second closure (24) is welded
It is connected to coping plate (21).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720091891.5U CN206422104U (en) | 2017-01-22 | 2017-01-22 | Cap assembly, secondary cell and laser welding system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720091891.5U CN206422104U (en) | 2017-01-22 | 2017-01-22 | Cap assembly, secondary cell and laser welding system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206422104U true CN206422104U (en) | 2017-08-18 |
Family
ID=59570104
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720091891.5U Active CN206422104U (en) | 2017-01-22 | 2017-01-22 | Cap assembly, secondary cell and laser welding system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206422104U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109648198A (en) * | 2017-10-10 | 2019-04-19 | 大族激光科技产业集团股份有限公司 | A kind of method of the continuous repair welding of laser |
| CN112207438A (en) * | 2020-09-30 | 2021-01-12 | 珠海冠宇电池股份有限公司 | Welding assembly and welding method |
| CN113871765A (en) * | 2021-09-26 | 2021-12-31 | 贵阳比耐新能源科技有限公司 | Cylindrical battery and manufacturing method thereof |
-
2017
- 2017-01-22 CN CN201720091891.5U patent/CN206422104U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109648198A (en) * | 2017-10-10 | 2019-04-19 | 大族激光科技产业集团股份有限公司 | A kind of method of the continuous repair welding of laser |
| CN112207438A (en) * | 2020-09-30 | 2021-01-12 | 珠海冠宇电池股份有限公司 | Welding assembly and welding method |
| CN113871765A (en) * | 2021-09-26 | 2021-12-31 | 贵阳比耐新能源科技有限公司 | Cylindrical battery and manufacturing method thereof |
| CN113871765B (en) * | 2021-09-26 | 2024-02-23 | 贵阳比耐新能源科技有限公司 | Cylindrical battery and manufacturing method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN206422104U (en) | Cap assembly, secondary cell and laser welding system | |
| CN206893707U (en) | Liquid injection port seal assembly and battery component | |
| CN101911344B (en) | Enclosed battery and production method therefor, vehicle mounting enclosed battery and battery mounting apparatus | |
| CN106862730A (en) | A kind of vertical butt welding method of slab | |
| KR101695416B1 (en) | Laser welding structure | |
| CN101523640A (en) | Battery and process for making a battery | |
| RU2578322C2 (en) | Electrochemical anodes having welds made by friction stir welding and such anodes fabricating methods | |
| CN104646957B (en) | Laser airtight welding process-based packaged method of high-frequency microwave product | |
| CN104139229B (en) | Form the welding method of T junction | |
| CN108856965A (en) | The method that MAG weldering carries out inclination Tube-sheet Welding | |
| CN203276874U (en) | Self-welding cladding assembly welding structure for stainless-steel water tank of nuclear power station | |
| JPH10144268A (en) | Sealing structure for sealed battery | |
| CN2905417Y (en) | Hot melt fixture | |
| CN203659981U (en) | Filling port sealing structure with inward-concave plug body | |
| CN105508105B (en) | The end cap of plastic oil rail, oily rail body and both welding methods | |
| WO2007071121A1 (en) | A welding method and a method of sealing opening of battery by laser | |
| CN204792951U (en) | Power type arc -welding block | |
| JP4294341B2 (en) | Sealed battery and its manufacturing method | |
| CN107104207A (en) | Secondary cell and its top cover | |
| CN203830931U (en) | W-shaped seal connecting welded junction | |
| CN207281142U (en) | A kind of integrated electric energy meter housing | |
| CN207572423U (en) | Battery modules | |
| CN207298136U (en) | Butt welding connection structure for plastic lining composite steel pipe | |
| CN102610784B (en) | Polar post and lead bushing structure and fusion welding method as well as storage battery employing structure | |
| CN205564829U (en) | Secondary cell and top cap thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |