CN207074691U - A kind of cylindrical battery winds mechanism - Google Patents
A kind of cylindrical battery winds mechanism Download PDFInfo
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- CN207074691U CN207074691U CN201720904862.6U CN201720904862U CN207074691U CN 207074691 U CN207074691 U CN 207074691U CN 201720904862 U CN201720904862 U CN 201720904862U CN 207074691 U CN207074691 U CN 207074691U
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- winding
- apical grafting
- cylindrical battery
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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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- 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
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Abstract
A kind of cylindrical battery winds mechanism, for winding the barrier film with positive plate and negative plate, wherein, the positive plate includes anode ear, the negative plate includes negative electrode lug, to form cylindrical battery core, the winding mechanism includes driving part and the slave unit with the driving part matching resultant motion, the volume pin that the driving part includes abutment sleeve and is rotatablely connected through the abutment sleeve and with the abutment sleeve, the slave unit includes fixed seat and the thimble with fixed seat rotation connection, the central axis coaxial of the volume pin and the thimble is set, the volume pin includes group section and winding section, the thimble includes linkage section and apical grafting section, the apical grafting section apical grafting is in the winding section, the outer surface of the apical grafting section is class circular conical surface.The utility model can avoid battery core lug in winding process that overbending occurs, so as to facilitate continuing for subsequent machining technology.
Description
Technical field
The utility model belongs to battery manufacturing field, more particularly to a kind of cylindrical battery winding mechanism.
Background technology
Fig. 1 to Fig. 2 is referred to, at present in the production process of battery core, pre-wound first is carried out to barrier film 101 ', placed into negative
Pole piece 103 ' and positive plate 102 '.Then, the barrier film 101 ' positive plate 102 ', negative plate 103 ' and pre-roll wound is by Fig. 1
Direction is wound into battery core together shown in arrow.Wherein, positive plate 102 ' includes positive pole ear 104 ', and negative plate 103 ' includes negative pole
Lug 105 '.Positive pole ear 104 ' is integrated with positive plate 102 ', and negative lug 105 ' is integrated with negative plate 103 '.Winding
During, positive pole ear 104 ' is easily bended by the afterbody of thimble.
Especially when head of the design attitude of positive pole ear 104 ' of column lithium ion battery in battery core, in winding process
Positive pole ear 104 ' is located at the center of whole battery core, after positive pole ear 104 ' touches the afterbody of volume pin, the degree of bending
It is larger.During subsequent technique, upper insulating trip is directly into battery case, bending excessive positive pole by automatic punching machine
Lug 104 ' causes influence to automatic upper insulating trip, and the success for reducing insulating trip enters shell rate, the final life for influenceing battery
Produce efficiency.
Utility model content
The purpose of this utility model is to provide a kind of cylindrical battery winding mechanism, it is intended to which solution in the prior art can not
The problem of reducing degree of crook of the lug in winding process.
The utility model is achieved in that a kind of cylindrical battery winding mechanism, for winding with positive plate and bearing
The barrier film of pole piece, wherein, the positive plate includes anode ear, and the negative plate includes negative electrode lug, to form cylindrical electricity
Core, the winding mechanism include driving part and the slave unit with the driving part matching resultant motion, the initiative part
Part includes abutment sleeve and is rotatablely connected and for the membrane winding through the abutment sleeve and with the abutment sleeve
Pin is rolled up, the slave unit includes fixed seat and is rotatablely connected with the fixed seat and coordinates with the pin end apical grafting of volume pin one
Thimble, the central axis coaxial of the volume pin and the thimble is set, and the pivot center of the volume pin and the thimble is same
Axle set, the volume pin include through the abutment sleeve and with the abutment sleeve rotation connection group section and with it is described
Group section connects and supplies the winding section of the membrane winding, the thimble include with the fixed seat rotation connection linkage section with
And the apical grafting section for being connected with one end of linkage section and coordinating with the winding section apical grafting, the apical grafting section apical grafting is in the winding section
Away from the end of the group section, the external diameter edge of the apical grafting section deviates from the tapered setting in direction of the linkage section.
Further, the thimble is cylinder, and the surface of the linkage section of the thimble offers annular groove, institute
The surface of apical grafting section is stated as class circular conical surface and opens up fixing hole in the end face of free end.
Further, the linkage section is connected with the fixed seat bearing, and the bearing is arranged in the groove.
Further, the fixing hole is arranged on the center of the apical grafting section end face, is provided with the fixing hole
Pilot pin.
Further, one end of the pilot pin is fixed on the center of the fixing hole bottom hole, and the other end extends
The fixing hole simultaneously opens up the first guide surface in end, and first guide surface is class circular conical surface.
Further, one end of thimble described in the winding section apical grafting, which is stretched into the fixing hole and opened up in end, determines
Position hole, the positioning hole are rectangular opening and stated positioned at the center of the winding section end face, interior clamp of the positioning hole
One end of first guide surface is opened up in pilot pin.
Further, the surfaces facing outward where the positioning hole aperture is in expand shape, the second guide surface of formation, and described first
The shape of guide surface is adapted with the shape of second guide surface.
Further, the volume pin is shaped as cylindrical and including semicircular body long paper pin and is fitted in the semicircle
And can be with respect to the short volume pin of semicircular body slided, patch of the positioning hole on the long paper pin and the short volume pin on body long paper pin
Conjunction face is symmetrical.
Further, the diameter of the group section of the volume pin is more than the diameter of the winding section, the switching section
Multiple drive holes are offered in the part on the long paper pin and the short volume pin.
Further, the abutment sleeve includes receiver and sleeve body, and the sleeve body is arranged on the sleeve
Seat towards the surface of the fixed seat, the group section of the long paper pin and the short volume pin wear the sleeve body with it is described
Receiver.
The utility model has the technical effect that relative to prior art：Winding mechanism is carrying out the both positive and negative polarity winding of battery core
When, driving part and slave unit be relative to draw close settings, and outer surface of the positive pole ear in battery core along apical grafting section tilts and bent,
By changing the shape of apical grafting section outer surface, the degree of crook of positive pole ear can be controlled, avoids positive pole ear in battery core
Overbending occurs in winding process, so as to facilitate subsequent machining technology to continue to implement.
Brief description of the drawings
Fig. 1 is the top view of the barrier film with positive/negative plate.
Fig. 2 is the right view of Fig. 1 barrier film with positive/negative plate.
Fig. 3 is the structural representation for the cylindrical battery winding mechanism that the utility model embodiment provides.
Fig. 4 is the structural representation for the slave unit that Fig. 3 the utility model embodiment provides.
Fig. 5 is the structural representation for the thimble that Fig. 3 the utility model embodiment provides.
Fig. 6 is sectional view of the thimble of Fig. 5 the utility model embodiment offer along its center axis.
Fig. 7 is the structural representation for the volume pin that Fig. 3 the utility model embodiment provides.
Fig. 8 is the partial enlarged drawing at Fig. 7 A.
Fig. 9 is the structural representation for the inner sleeve that Fig. 3 the utility model embodiment provides.
Figure 10 is the structural representation of the long paper pin for the volume pin that Fig. 7 the utility model embodiment provides.
Figure 11 is the structural representation of the short volume pin for the volume pin that Fig. 7 the utility model embodiment provides.
Label relation corresponding with title is as follows in accompanying drawing：
Embodiment
Embodiment of the present utility model is described below in detail, the example of the embodiment is shown in the drawings, wherein from beginning
Same or similar element is represented to same or similar label eventually or there is the element of same or like function.Below by ginseng
The embodiment for examining accompanying drawing description is exemplary, it is intended to for explaining the utility model, and it is not intended that to the utility model
Limitation.
In description of the present utility model, it is to be understood that term " thickness ", " on ", " under ", " vertical ", " parallel ",
The orientation or position relationship of the instructions such as " bottom ", " angle " are based on orientation shown in the drawings or position relationship, are for only for ease of and retouch
State the utility model and simplify and describe, rather than instruction or imply signified device or element must have specific orientation, with
Specific azimuth configuration and operation, therefore it is not intended that to limitation of the present utility model.
In the utility model, unless otherwise clearly defined and limited, the term such as term " installation ", " connection " should be done extensively
Reason and good sense solution, for example, it may be fixedly connected or be detachably connected, or integrally；Can mechanically connect, can also
It is electrical connection；Can be joined directly together, can also be indirectly connected by intermediary, can be two element internals connection or
The interaction relationship of two elements.
Fig. 3 to Fig. 5 is referred to, the cylindrical battery winding mechanism 100 that the utility model embodiment is provided, first to barrier film
(not drawn in figure) carries out pre-wound.Then, positive plate (not drawn in figure) and negative plate are put into the barrier film that pre-roll is wound (in figure
Do not draw), barrier film and positive/negative plate are finally wound into columned battery core 10.Cylindrical battery winding mechanism 100 is included actively
Part 30 and the slave unit 20 with the matching resultant motion of driving part 30.Battery core 10 includes battery core cylinder 13 and is arranged on electricity
The anode ear 11 and negative electrode lug 12 of the both ends end face of stem body 13.Anode ear 11 is arranged on battery core cylinder 13 towards slave unit 20
End face.
Driving part 30 includes abutment sleeve 32 and is rotatablely connected and supplies through abutment sleeve 32 and with abutment sleeve 32
The volume pin 31 of membrane winding, slave unit 20 include fixed seat 21 and be rotatablely connected with fixed seat 21 and with volume pin 31 1 pin end
The thimble 22 that apical grafting coordinates, the central axis coaxial for rolling up pin 31 and thimble 22 is set, and rolls up the pivot center of pin 31 and thimble 22
It is coaxially disposed.Roll up pin 31 include through abutment sleeve 32 and with abutment sleeve 32 be rotatablely connected group section 316 and with switching
Section 316 connect simultaneously for membrane winding winding section 315, thimble 22 include with fixed seat 21 be rotatablely connected linkage section 221 and
The apical grafting section 222 for being connected with one end of linkage section 221 and coordinating with the winding apical grafting of section 315, the apical grafting of apical grafting section 222 is in winding section
315 deviate from the end of group section 316.The external diameter edge of apical grafting section 222 deviates from the tapered setting in direction of linkage section 221, apical grafting section 222
Outer surface be class circular conical surface.
Driving part 30 and slave unit 20 relative can be drawn close or are arranged distant from.When winding 10 both positive and negative polarity of battery core, actively
Part 30 is relative with slave unit 20 to be drawn close, and tilts outer surface of the anode ear 11 of battery core 10 along apical grafting section 222.Pass through change
The outer surface of apical grafting section 222 can adjust the degree of crook of anode ear 11.After the completion of winding, anode ear 11 does not influence following process
Technique continues to implement.
Linkage section 221 wears fixed seat 21 and is rotatablely connected by bearing 211 and fixed seat 21.Bearing 211 can improve
Kinematic accuracy of the thimble 22 in fixed seat 21.One end that linkage section 221 connects apical grafting section 222 opens up annular groove 2211, axle
211 are held to be arranged in groove 2211.
Please refer to Fig. 6 to Fig. 8, the end face of the apical grafting of apical grafting section 222 volume pin 31 offers fixing hole 2221, fixing hole
2221 at the center of the end face of apical grafting section 222.Slave unit 20 also includes pilot pin 23, and fixation is fixed in the one end of pilot pin 23
At the center of the bottom hole of hole 2221.The other end of pilot pin 23 extends fixing hole 2221 and opens up the first guide surface in end
231, the first guide surface 231 is shaped as class circular conical surface.
The one end for rolling up the winding section 315 of pin 31 is stretched into fixing hole 2221 and positioning hole 313 is opened up at end face center.It is fixed
End face where the aperture of hole 313 of position is in expanding outwardly, forms the second guide surface 314.The shape and second of first guide surface 231
The shape of guide surface 314 is adapted, and so pilot pin 23 can be made smoothly to be caught in positioning hole 313.
Positioning hole 313 is rectangular opening, and rectangular indexing holes 313 carry out card with cylindrical pilot pin 23 and set and clamp connection,
So that the rotary motion of driving part 30 can smoothly be transferred to slave unit 20.Positioning hole 313 can be with other embodiments
For the square hole of polygon.Pilot pin 23 can also be arranged to cuboid, positioning hole 313 opens up into circular hole, can equally reached
To the purpose for transmitting motion.
Please refer to Fig. 9 to Figure 11, volume pin 31 is shaped as cylindrical.The volume pin 31 of cylinder includes semicylinder
Shape long paper pin 311 and it is fitted on semicolumn bodily form long paper pin 311 and can the relative short volume pin 312 of the semicolumn bodily form slided.
Positioning hole 313 is symmetrical on the binding face of long paper pin 311 and short volume pin 312.Specifically, positioning hole 313 is by long paper pin 311 and short
The binding face of volume pin 312 is divided into two half bore, the first half bore 3131 respectively on long paper pin 311 and positioned at short volume pin
The second half bore 3132 on 312.Correspondingly, the second guide surface 314 is also divided into by the binding face of long paper pin 311 and short volume pin 312
Two parts.It is the first half guide surfaces 3141 on the long paper pin 311 and the second half guiding on short volume pin 312 respectively
Face 3142.
The diameter for rolling up the group section 316 of pin 31 is more than the diameter of winding section 315, and battery core 10 is in winding section 315.Volume
Volume Two of the first volume for including being located on long paper pin 311 around section 315 around section 3111 and on short volume pin 312 is around section 3121.
Group section 316 includes the first group section 3112 on long paper pin 311 and the second group section on short volume pin 312
3122.First group section 3112 and the second group section 3121 wear abutment sleeve 32.It is uniformly distributed on first group section 3112
Four the first drive holes 3113, two the second drive holes 3123 are uniformly distributed on the second group section 3122.
Abutment sleeve 32 includes receiver 321 and sleeve body 322, and sleeve body 322 is arranged on receiver 321 towards admittedly
The surface of reservation 31.The group section 316 of volume pin 31 wears receiver 321 and sleeve body 322.Sleeve body 322 is to rolling up pin 31
Group section 316 have the effect of contraction of radial direction, long paper pin 311 and short volume pin 312 will not radially slide in winding process.
Drawn needle cylinder (not drawn in figure) first axially releases short volume pin 312, short volume pin 312 by the second drive hole 3123
The barrier film sent from conveying device (not drawn in figure) is pushed down by commutation.Then, drawn needle cylinder passes through the first drive hole
3113, then long paper pin 311 is released, in the presence of barrier film cylinder is cut, cut-out is clipped between long paper pin 311 and short volume pin 312
Barrier film.Then, the pre-wound that pin 31 carries out barrier film is rolled up, both positive and negative polarity is put on the barrier film that pre-roll winds, then carry out battery core 10
Both positive and negative polarity is wound.
When starting to wind battery core 10, the thimble 22 of slave unit 20 and the relative level of volume pin 31 of driving part 30 are drawn close,
First guide surface 231 of pilot pin 23 slides along the second guide surface 314 on volume pin 31.So as in drawing for the second guide surface 314
Lead down, pilot pin 23 is caught in and is clamped in positioning hole 313.After the completion of winding, pilot pin 23 departs from positioning hole 313.Pilot pin
23 can ensure to roll up horizontal accuracy of the pin 31 in winding process, so as to ensure the winding precision of cylindrical battery core 10, avoid electricity
Core 10 is wound into taper.
Preferred embodiment of the present utility model is the foregoing is only, it is all at this not to limit the utility model
All any modification, equivalent and improvement made within the spirit and principle of utility model etc., should be included in the utility model
Protection domain within.
Claims (10)
1. a kind of cylindrical battery winds mechanism, for winding the barrier film with positive plate and negative plate, wherein, the positive plate
Including anode ear, the negative plate includes negative electrode lug, to form cylindrical battery core, it is characterised in that：The winding mechanism
Slave unit including driving part and with the driving part matching resultant motion, the driving part include abutment sleeve with
And it is rotatablely connected through the abutment sleeve and with the abutment sleeve and supplies the volume pin of the membrane winding, the slave unit
The thimble for being rotatablely connected including fixed seat and with the fixed seat and coordinating with the pin end apical grafting of the volume pin one, the volume pin and
The central axis coaxial of the thimble is set, and the coaxial of the volume pin and the thimble is set, the volume pin bag
Include through the abutment sleeve and with the group section of abutment sleeve rotation connection and being connected with the group section and supplying institute
The winding section of membrane winding is stated, the thimble includes one end with the linkage section of fixed seat rotation connection and with linkage section
The apical grafting section for connecting and coordinating with the winding section apical grafting, the apical grafting section apical grafting is in the winding section away from the group section
End, the external diameter edge of the apical grafting section deviate from the tapered setting in direction of the linkage section.
2. cylindrical battery as claimed in claim 1 winds mechanism, it is characterised in that：The thimble is cylinder, the top
The surface of the linkage section of pin offers annular groove, and the surface of the apical grafting section is for class circular conical surface and in the end face of free end
Open up fixing hole.
3. cylindrical battery as claimed in claim 2 winds mechanism, it is characterised in that：The linkage section and the fixed seat axle
Connection is held, the bearing is arranged in the groove.
4. cylindrical battery as claimed in claim 2 winds mechanism, it is characterised in that：The fixing hole is arranged on the apical grafting
The center of section end face, is provided with pilot pin in the fixing hole.
5. cylindrical battery as claimed in claim 4 winds mechanism, it is characterised in that：One end of the pilot pin is fixed on institute
State the center of fixing hole bottom hole, the other end extends the fixing hole and opens up the first guide surface in end, and described
One guide surface is class circular conical surface.
6. cylindrical battery as claimed in claim 5 winds mechanism, it is characterised in that：Thimble described in the winding section apical grafting
One end is stretched into the fixing hole and opens up positioning hole in end, and the positioning hole is rectangular opening and is located at the winding Duan Duan
The center in face, the positioning hole is interior to clamp the one end stated and first guide surface is opened up in pilot pin.
7. cylindrical battery as claimed in claim 6 winds mechanism, it is characterised in that：Surface where the positioning hole aperture
Outwardly in expansion shape, the second guide surface is formed, the shape of first guide surface is adapted with the shape of second guide surface.
8. cylindrical battery as claimed in claim 6 winds mechanism, it is characterised in that：The volume pin is shaped as cylindrical
And including semicircular body long paper pin and the short volume pin of semicircular body that can be slided on the semicircular body long paper pin and relatively is fitted in, it is described
Positioning hole is symmetrical on the binding face of the long paper pin and the short volume pin.
9. cylindrical battery as claimed in claim 8 winds mechanism, it is characterised in that：The group section of the volume pin it is straight
Footpath is more than the diameter of the winding section, and the part that the group section is located on the long paper pin and the short volume pin offers more
Individual drive hole.
10. cylindrical battery as claimed in claim 8 winds mechanism, it is characterised in that：The abutment sleeve includes receiver
And sleeve body, the sleeve body are arranged on the receiver towards the surface of the fixed seat, the long paper pin and described
The group section of short volume pin wears the sleeve body and the receiver.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720904862.6U CN207074691U (en) | 2017-07-24 | 2017-07-24 | A kind of cylindrical battery winds mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720904862.6U CN207074691U (en) | 2017-07-24 | 2017-07-24 | A kind of cylindrical battery winds mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207074691U true CN207074691U (en) | 2018-03-06 |
Family
ID=61522951
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720904862.6U Active CN207074691U (en) | 2017-07-24 | 2017-07-24 | A kind of cylindrical battery winds mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207074691U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023134543A1 (en) * | 2022-01-14 | 2023-07-20 | 宁德时代新能源科技股份有限公司 | Winding needle, winding machine, battery cell winding method |
-
2017
- 2017-07-24 CN CN201720904862.6U patent/CN207074691U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023134543A1 (en) * | 2022-01-14 | 2023-07-20 | 宁德时代新能源科技股份有限公司 | Winding needle, winding machine, battery cell winding method |
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