CN107570858A - Electrokinetic cell lug high-frequency welding rubberizing coil and tab welding device, method - Google Patents
Electrokinetic cell lug high-frequency welding rubberizing coil and tab welding device, method Download PDFInfo
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- CN107570858A CN107570858A CN201710906493.9A CN201710906493A CN107570858A CN 107570858 A CN107570858 A CN 107570858A CN 201710906493 A CN201710906493 A CN 201710906493A CN 107570858 A CN107570858 A CN 107570858A
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- Prior art keywords
- coil
- bend pipe
- tube
- rubberizing
- down tube
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- 238000003466 welding Methods 0.000 title claims abstract description 62
- 238000000034 method Methods 0.000 title claims abstract description 16
- 229910052751 metal Inorganic materials 0.000 claims description 3
- 239000002184 metal Substances 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 6
- 238000009826 distribution Methods 0.000 description 5
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 4
- 230000006698 induction Effects 0.000 description 4
- 229910052744 lithium Inorganic materials 0.000 description 4
- 238000010276 construction Methods 0.000 description 3
- 238000010924 continuous production Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 1
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 1
- 239000004411 aluminium Substances 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000004146 energy storage Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000007667 floating Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 229910001416 lithium ion Inorganic materials 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- 239000004332 silver Substances 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
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- Lining Or Joining Of Plastics Or The Like (AREA)
Abstract
The invention discloses a kind of electrokinetic cell lug high-frequency welding rubberizing coil and tab welding device, method, including the coil group for being be arranged in parallel and being connected in sequence by the coil case of the U-shaped structure of at least two circles, the coil case of each circle includes upper tube, down tube and the bend pipe for connecting top tube and down tube, upper tube in coil is connected by oblique bend pipe with the down tube of adjacent lines circle body, the upper tube, down tube, bend pipe, oblique bend pipe are hollow body, and the regional connectivity that each coil case inner upper tube, down tube, bend pipe and oblique bend pipe surround forms weldment plane.The present invention can significantly improve the efficiency of high-frequency welding, energy-saving, reduce production cost, ensure the uniformity and quantity-produced homogeneity of product of power tab welding rubberizing.
Description
Technical field
The present invention relates to high-frequency welding technical field, more particularly to a kind of electrokinetic cell lug high-frequency welding rubberizing coil
And tab welding device, method.
Background technology
At present, new-energy automobile more using method for soft package lithium ion power as energy storage device, and lug be Soft Roll lithium from
The important component of sub- electrokinetic cell.
In many moulding process of lug, production efficiency highest, the rubberizing intensity of high-frequency welding rubberizing technique are best,
3C consumer electronics products are widely used with the lug production of soft package lithium battery.But with 3C used in battery lugs
Compare, lug size is much greater used in electrokinetic cell, and rubberizing area expands nearly a hundred times, and existing high-frequency welding rubberizing technique is held
The defects of rubberizing is uneven, uniformity is bad easily is exposed, at present not yet can be in the production process of battery pole ear used in power
Popularization and application.Therefore, when producing lug used in electrokinetic cell, manufacturer is still mostly using work efficiency is low, rubberizing intensity is relatively low
And the flat board heat pressing process that product appearance is not good enough.
Electrokinetic cell lug occurs that rubberizing is uneven, main original of uniformity problem of poor using high-frequency welding rubberizing technique
Because being that the loop construction of existing high-frequency welding mechanism is unreasonable.Fig. 1 show existing 3C classes lithium battery pole ear high-frequency welding rubberizing
Conventional single-turn circular coil, Fig. 2 show the conventional single turn of existing electrokinetic cell lug high-frequency welding rubberizing and fold coil.Either
Single-turn circular coil or single turn fold coil, and weldment is located at the outside of coil 10 and weldment plane 5 is perpendicular to the normal direction of coil 10, therefore
50% coil emittance can only at most be used, Opposed Current direction, with weldment relative position and along weldment in-plane magnetic
Induction distribution is as shown in Figure 3.Moreover, magnetic field is unequal everywhere in weldment plane, working region Magnetic field inhomogeneity, during work
Aluminium, the copper sheet of welded part everywhere is generated heat uneven, so as to cause rubberizing regional temperature inconsistent, cause rubberizing strong
Spend the problem of uneven.When folding coil continuous production using single-turn circular coil or single turn, working region Magnetic field inhomogeneity, and weld
Position floating can occur unavoidably for workpiece, and weldment once deviates centre position, and its residing changes of magnetic field is larger, therefore during continuous production
Product rubberizing strength consistency is poor, has a strong impact on application of the high-frequency welding rubberizing technique in the unfamiliar to the ear production of power battery electrode.
The content of the invention
The present invention proposes a kind of electrokinetic cell lug high-frequency welding rubberizing coil and tab welding device, method to solve
Above-mentioned technical problem.
In order to achieve the above object, the technical solution adopted in the present invention is：
The embodiment of the present invention in a first aspect, propose a kind of electrokinetic cell lug high-frequency welding rubberizing coil, including by least
The coil group that the coil case of the U-shaped structure of two circles be arranged in parallel and is connected in sequence, the coil case of each circle is including upper
Pipe, down tube and the bend pipe for connecting top tube and down tube, the upper tube in coil are connected by oblique bend pipe with the down tube of adjacent lines circle body, institute
It is hollow body to state upper tube, down tube, bend pipe, oblique bend pipe, and each coil case inner upper tube, down tube, bend pipe and oblique bend pipe surround
Regional connectivity formed weldment plane.
Preferably, the upper tube, down tube, bend pipe, oblique bend pipe are hollow metal tube.
Preferably, the upper tube, down tube, bend pipe, oblique bend pipe are integrally formed.
Preferably, the tiltedly bend pipe is dextrorotation shape.
As it is another preferably, it is described tiltedly bend pipe be left-handed shape.
Preferably, when the coil case quantity is more than two circles, equidistantly distributed between coil case.
The second aspect of the embodiment of the present invention, propose a kind of tab welding device, including power battery electrode as described above
Ear high-frequency welding rubberizing coil, weldment plane are used for normal orientation, the coil case of the welding of lug, weldment plane and coil case
Internal magnetic line of force direction is parallel.
Preferably, the weldment plane and each coil case inner upper tube, down tube are equidistant.
The third aspect of the embodiment of the present invention, propose a kind of tab welding side based on tab welding device as described above
Method, when carrying out high-frequency welding, lug is positioned over to the weldment surrounded by each coil case inner upper tube, down tube, bend pipe and oblique bend pipe
It is subjected in plane.
Compared with prior art, the present invention can significantly improve the efficiency of high-frequency welding, and energy-saving, reduction is produced into
This, ensures the uniformity and quantity-produced homogeneity of product of power tab welding rubberizing.
Brief description of the drawings
Fig. 1 is the structural representation for the single-turn circular coil that existing 3C classes lithium battery pole ear high-frequency welding rubberizing is commonly used；
Fig. 2 is the structural representation that the single turn that existing electrokinetic cell lug high-frequency welding rubberizing is commonly used folds coil；
Fig. 3 is that existing single turn folds the Opposed Current direction of coil, with weldment relative position and along weldment in-plane magnetic induction
Intensity distribution schematic diagram；
Fig. 4 is a kind of structural representation of electrokinetic cell lug high-frequency welding rubberizing coil of the present invention；
Fig. 5 is another structural representation of electrokinetic cell lug high-frequency welding rubberizing coil of the present invention；
Fig. 6 be electrokinetic cell lug high-frequency welding rubberizing coil of the present invention Opposed Current direction, with weldment relative position and
Along weldment in-plane Magnetic Induction Density Distribution schematic diagram.
In figure, 1- upper tubes, 2- down tubes, 3- bend pipes, the oblique bend pipes of 4-, 5- weldment planes, 10- coils.
Embodiment
Below with reference to embodiment shown in the drawings, the present invention will be described in detail.But these embodiments are simultaneously
The present invention is not limited, structure that one of ordinary skill in the art is made according to these embodiments, method or functionally
Conversion is all contained in protection scope of the present invention.
It is only merely for the purpose of description specific embodiment in terminology used in the present invention, and is not intended to be limiting the present invention.
It is also intended in " one kind " of the singulative of the invention with used in appended claims, " described " and "the" including majority
Form, unless context clearly shows that other implications.It is also understood that term "and/or" used herein refers to and wrapped
Containing the associated list items purpose of one or more, any or all may be combined.
As shown in Figure 4 and Figure 5, a kind of electrokinetic cell lug high-frequency welding rubberizing coil, including it is U-shaped by least two circles
The coil group that the coil case of structure be arranged in parallel and is connected in sequence, the coil case of each circle include upper tube 1, down tube 2
And the bend pipe 3 of top tube and down tube is connected, the upper tube 1 in coil is connected by oblique bend pipe 4 with the down tube 2 of adjacent lines circle body, upper tube
1st, down tube 2, bend pipe 3, oblique bend pipe 4 are hollow body, all bend pipes 3 in the same side, each coil case inner upper tube 1, under
The regional connectivity that pipe 2, bend pipe 3, oblique bend pipe 4 surround forms weldment plane 5.
Wherein, upper tube 1, down tube 2, bend pipe 3, oblique bend pipe 4 can be integrally formed, and can use hollow metal tube, be considered
Electrical and thermal conductivity performance and bending, the convenience of welding can use copper pipe, can also use aluminum pipe, silver pipe or other thermal conductivity good
Metallic conduit；The direction of arrow is Opposed Current direction in Fig. 4 and Fig. 5.
A kind of implementation of the present invention, the quantity of coil case can be more than two circles, and such as three circles are even more more；Work as coil case
Quantity when being more than two circles, equidistantly distributed between coil case, to ensure the uniform stabilization of operating fields.
Oblique bend pipe 4 is dextrorotation shape in Fig. 4, is in Figure 5 left-handed shape, i.e., coil group can use left-handed, two kinds of dextrorotation
Configuration, two kinds of configurations have specular relation, are using upper equivalent.When the quantity of coil case is more than two circles, own
Oblique bend pipe 4 the same side and direction of rotation it is consistent.It should be noted that the relational terms such as left-handed, dextrorotation, upper and lower are only
It is only used for describing loop construction and the relation with weldment relative position, is not offered as between these entities or position only having in text
The unique describing mode mentioned, do not indicate that yet when choose different coordinate, using different view modes when, the location expression is still
So set up.
Electrokinetic cell lug high-frequency welding rubberizing coil provided by the invention, relative to single-turn circular coil and single turn fold line
Circle, working region magnetic field is more uniform, is designed by rational coil configuration, changes the relative position of coil normal direction and weldment plane
Relation, the energy utilization efficiency of high-frequency welding is remarkably improved, energy consumption can be reduced under the premise of identical weld strength is reached, and
Make placement weldment heating therein uniform, and weldment positions its residing changes of magnetic field unobvious when shifting, and can ensure to move
Power lug rubberizing intensity it is uniform, effectively improve the uniformity when rubberizing uniformity and continuous production of product.
On the other hand the embodiment of the present invention, proposes a kind of tab welding device, including electrokinetic cell lug as described above
High-frequency welding rubberizing coil, weldment plane 5 are used for normal orientation, the coil case of the welding of lug, weldment plane 5 and coil case
Internal magnetic line of force direction is parallel.Wherein, weldment plane 5 and each coil case inner upper tube 1, down tube 2 are equidistant.
The another aspect of the embodiment of the present invention, a kind of pole ear welding method based on above-mentioned tab welding device is proposed, is being entered
Lug is positioned over to the weldment plane surrounded by each coil case inner upper tube 1, down tube 2, bend pipe 3, oblique bend pipe 4 during row high-frequency welding
In 5, the magnetic line of force direction inside the normal orientation of weldment plane 5 and coil case, coil case is parallel, Opposed Current direction, with weldering
Part relative position and as shown in Figure 6 along weldment in-plane Magnetic Induction Density Distribution.
In practical operation, coil case is all near in any moment of high frequency electric change in the magnetic field in welding job region
It is similar to the situation of uniform magnetic field；When the off-center position of weldment, the magnetic field around it changes less relative to center, right
It is smaller to weld rubberizing influential effect；Loop construction and the cooperation with weldment relative position, energy when can make the high-frequency welding work
Utilization rate is improved.
In summary, essence of the invention is that at least two circle coils are used for into power lug high-frequency welding rubberizing, coil with
The relative position relation of weldment is that coil normal direction is parallel with weldment plane, and Distribution of Magnetic Field of the coil inside along normal direction is approximation
In uniform magnetic field, and coil inside center and close edge changes of magnetic field are little, so as to ensure power tab welding rubberizing
Uniformity and quantity-produced homogeneity of product；Because weldment is located at coil inside and weldment plane is parallel with coil normal direction,
So the electromagnetic energy energy welded part 100% of theoretical coil radiation absorbs, the efficiency of high-frequency welding can be significantly improved,
It is energy-saving, reduce production cost.
Those skilled in the art will readily occur to the present invention its after considering specification and putting into practice invention disclosed herein
Its embodiment.The application be intended to the present invention any modification, purposes or adaptations, these modifications, purposes or
Person's adaptations follow the general principle of the present invention and including undocumented common knowledges in the art of the invention
Or conventional techniques.Description and embodiments are considered only as exemplary, and true scope and spirit of the invention are by the application
Claim point out.
It should be appreciated that the invention is not limited in the precision architecture for being described above and being shown in the drawings, and
And various modifications and changes can be being carried out without departing from the scope.The scope of the present invention is only limited by appended claim.
Claims (9)
1. a kind of electrokinetic cell lug high-frequency welding rubberizing coil, it is characterised in that including by the U-shaped structure of at least two circles
The coil group that coil case be arranged in parallel and is connected in sequence, the coil case of each circle are included in upper tube, down tube and connection
The bend pipe of pipe and down tube, the upper tube in coil are connected by oblique bend pipe with the down tube of adjacent lines circle body, the upper tube, down tube, curved
Pipe, oblique bend pipe are hollow body, and the regional connectivity that each coil case inner upper tube, down tube, bend pipe and oblique bend pipe surround is formed
Weldment plane.
2. electrokinetic cell lug high-frequency welding rubberizing coil according to claim 1, it is characterised in that the upper tube,
Down tube, bend pipe, oblique bend pipe are hollow metal tube.
3. electrokinetic cell lug high-frequency welding rubberizing coil according to claim 1, it is characterised in that the upper tube,
Down tube, bend pipe, oblique bend pipe are integrally formed.
4. electrokinetic cell lug high-frequency welding rubberizing coil according to claim 1, it is characterised in that the oblique bend pipe
For dextrorotation shape.
5. electrokinetic cell lug high-frequency welding rubberizing coil according to claim 1, it is characterised in that the oblique bend pipe
For left-handed shape.
6. electrokinetic cell lug high-frequency welding rubberizing coil according to claim 1, it is characterised in that the coil case
When quantity is more than two circles, equidistantly distributed between coil case.
A kind of 7. tab welding device, it is characterised in that：Including the electrokinetic cell lug described in claim 1 to 6 any one
High-frequency welding rubberizing coil, weldment plane are used for the welding of lug, in the normal orientation of weldment plane and coil case, coil case
The magnetic line of force direction in portion is parallel.
8. tab welding device according to claim 7, it is characterised in that in the weldment plane and each coil case
Pipe, down tube are equidistant.
A kind of 9. pole ear welding method based on the tab welding device of claim 7 or 8, it is characterised in that：Carry out high frequency
During welding, lug is positioned in the weldment plane surrounded by each coil case inner upper tube, down tube, bend pipe and oblique bend pipe and welded
Connect operation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710906493.9A CN107570858A (en) | 2017-09-29 | 2017-09-29 | Electrokinetic cell lug high-frequency welding rubberizing coil and tab welding device, method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710906493.9A CN107570858A (en) | 2017-09-29 | 2017-09-29 | Electrokinetic cell lug high-frequency welding rubberizing coil and tab welding device, method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107570858A true CN107570858A (en) | 2018-01-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710906493.9A Pending CN107570858A (en) | 2017-09-29 | 2017-09-29 | Electrokinetic cell lug high-frequency welding rubberizing coil and tab welding device, method |
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| Country | Link |
|---|---|
| CN (1) | CN107570858A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109860497A (en) * | 2019-01-18 | 2019-06-07 | 湖北锂诺新能源科技有限公司 | A kind of welding method of Multilayer pole ear battery |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1802044A (en) * | 2005-11-11 | 2006-07-12 | 河北工业大学 | Width adjustable and temperature controllable transverse magnetic flux induction heating apparatus |
| CN101120617A (en) * | 2005-02-18 | 2008-02-06 | 新日本制铁株式会社 | Induction heating device and method for metal plate |
| CN203426588U (en) * | 2013-09-05 | 2014-02-12 | 东莞吉研达自动化设备科技有限公司 | Lithium battery tab welding device |
| CN105127576A (en) * | 2015-08-17 | 2015-12-09 | 深圳市世椿自动化设备有限公司 | Superconducting magnetic welding generator and winding method of superconducting magnetic welding generator |
| CN206356724U (en) * | 2016-12-12 | 2017-07-28 | 东莞市极客设备科技有限公司 | A kind of high-frequency welding mechanism of power lug uniform magnetic field |
| CN207255461U (en) * | 2017-09-29 | 2018-04-20 | 宁波三申材料科技有限公司 | Power battery lug high-frequency welding rubberizing coil and tab welding device |
-
2017
- 2017-09-29 CN CN201710906493.9A patent/CN107570858A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101120617A (en) * | 2005-02-18 | 2008-02-06 | 新日本制铁株式会社 | Induction heating device and method for metal plate |
| CN1802044A (en) * | 2005-11-11 | 2006-07-12 | 河北工业大学 | Width adjustable and temperature controllable transverse magnetic flux induction heating apparatus |
| CN203426588U (en) * | 2013-09-05 | 2014-02-12 | 东莞吉研达自动化设备科技有限公司 | Lithium battery tab welding device |
| CN105127576A (en) * | 2015-08-17 | 2015-12-09 | 深圳市世椿自动化设备有限公司 | Superconducting magnetic welding generator and winding method of superconducting magnetic welding generator |
| CN206356724U (en) * | 2016-12-12 | 2017-07-28 | 东莞市极客设备科技有限公司 | A kind of high-frequency welding mechanism of power lug uniform magnetic field |
| CN207255461U (en) * | 2017-09-29 | 2018-04-20 | 宁波三申材料科技有限公司 | Power battery lug high-frequency welding rubberizing coil and tab welding device |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109860497A (en) * | 2019-01-18 | 2019-06-07 | 湖北锂诺新能源科技有限公司 | A kind of welding method of Multilayer pole ear battery |
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Application publication date: 20180112 |