CN207816852U - Detection device - Google Patents
Detection device Download PDFInfo
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- CN207816852U CN207816852U CN201820290812.8U CN201820290812U CN207816852U CN 207816852 U CN207816852 U CN 207816852U CN 201820290812 U CN201820290812 U CN 201820290812U CN 207816852 U CN207816852 U CN 207816852U
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- pole piece
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- supporting surface
- optical axis
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Abstract
This application involves energy storage device production technical field more particularly to a kind of detection devices, are used for the detection of pole piece, including：There is transmission unit pole piece to detect supporting surface；And detection unit, including the first camera and second camera, first camera and the second camera are respectively arranged at the pole piece and detect supporting surface along the both sides of first direction；The optical axis of first camera, the optical axis of the second camera are obliquely installed both with respect to pole piece detection supporting surface；Wherein, the first direction detects supporting surface perpendicular to the pole piece.The application is avoided that due to electrode assembly short circuit caused by burr, wire drawing etc., improves the safety of secondary cell, and can understand burr and the wire drawing for differentiating all angles, and then improve the accuracy of pole piece detection.
Description
Technical field
This application involves energy storage device production technical field more particularly to a kind of detection devices.
Background technology
For lithium ion battery due to energy density height, advantages of environment protection is widely used in mobile phone, notebook electricity
The electronic devices such as brain.In recent years, for response environment problem, gas price problem and energy stores problem, lithium ion battery
Application Quick Extended to oily electricity mixed motor-car and energy storage system etc..The chief component packet of lithium ion battery
The electrode assembly formed by the first pole piece, the second pole piece and the isolation film between the first pole piece and the second pole piece is included, electricity
Pole component in process of production, the die-cutting machine of die cutting procedure by the pole piece (the first pole piece or the second pole piece) after the completion of coating,
It is continuously cut into lug using the automatic control device in equipment, the characteristics of due to die-cutting rule itself, pole piece pole in cross cutting
Easily wire drawing, burr are generated at pole piece edge.
In the prior art, before pole piece forms electrode assembly, usually pole piece is inspected by random samples, pole piece is placed on to static crystalline substance
It is completed under phase microscope, however, this mode detection efficiency is relatively low and can not all monitor, missing inspection usually occurs, once occur
Missing inspection causes the isolation film between the first pole piece and the second pole piece to be pierced sometimes by wire drawing, burr after forming electrode assembly
It wears, causes the matrix of pole piece to be contacted with the coat coated with active material on pole piece and short circuit occurs, cause lithium ion battery
It can be brought rapidly up, inflammable electrolyte is caused to catch fire, or even explosion, cause serious safety accident.
Utility model content
This application provides a kind of detection devices, can solve the above problems.
This application provides a kind of detection devices, are used for the detection of pole piece, including：
There is transmission unit pole piece to detect supporting surface；With
Detection unit, including the first camera and second camera,
First camera and the second camera are respectively arranged at the pole piece and detect supporting surface along first direction
Both sides；The optical axis of first camera, the optical axis of the second camera incline both with respect to pole piece detection supporting surface
Tiltedly setting；
Wherein, the first direction detects supporting surface perpendicular to the pole piece.
Optionally, in the same detection unit, the optical axis of at least one first camera with it is at least one
The optical axis of the second camera is located at same common plane, and the common plane is vertical with pole piece detection supporting surface.
Optionally, in the same detection unit, the pole piece detects supporting surface along the both sides of the first direction
First camera and a second camera there are one being respectively set.
Optionally, the optical axis of the optical axis of first camera and the second camera detects supporting surface with the pole piece
Angle be 30 °~60 °.
Optionally, the detection unit is set to the side of the transmission unit in a second direction, and the second direction is flat
Row detects supporting surface in the pole piece, and perpendicular to the transmission direction of the transmission unit.
Optionally, the transmission unit is both provided with the detection unit along the both sides of the second direction.
Optionally, the detection unit further includes light source, and first camera is separately connected with the second camera
There is the light source.
Optionally, the light source is annular light source, and the annular light source is set to first camera periphery or institute
State the periphery of second camera.
Optionally, further include pole piece stabilization moving cell, the pole piece stabilization moving cell includes stabilization roller, along the transmission
The both ends of the transmission direction of unit, the pole piece detection supporting surface are both provided with the stabilization roller.
Optionally, further include flaw labeling unit.
Technical solution provided by the present application can reach following advantageous effect：
Detection device provided herein, is provided with transmission unit and detection unit, and detection unit includes being set to pole
The first camera and second camera of piece both sides, when pole piece is sent to pole piece by transmission unit detects supporting surface, first
Camera and second camera respectively shoot the opposite sides of pole piece, then analyze the image of shooting, to sentence
Whether the disconnected pole piece meets the requirements.Obviously, the application can realize automatic detection by transmission unit to pole piece, ensure pole piece
The efficiency of detection by that can improve the accuracy rate of detection to the analysis of image, and then ensures the quality of pole piece, avoids as far as possible
Due to electrode assembly short circuit caused by burr, wire drawing etc., the safety of secondary cell is improved.And the application considers the wire drawing having
With burr perpendicular to pole piece, if the optical axis of the first camera and second camera and pole piece are vertically arranged, may cause
The part wire drawing and burr can not be differentiated in image, influences the accuracy of detection, and therefore, the first camera and the is arranged in the application
The optical axis of two cameras is tilted both with respect to pole piece detection supporting surface, with the clear burr for differentiating all angles and wire drawing, in turn
Improve the accuracy of pole piece detection.
It should be understood that above general description and following detailed description is merely exemplary, this can not be limited
Application.
Description of the drawings
Fig. 1 is a kind of structural schematic diagram of specific embodiment of detection device provided herein；
Fig. 2 is a kind of front view of specific embodiment of detection device provided herein.
Reference numeral：
10- pole pieces；
11- ontologies；
12- lugs；
20- detection devices；
21- transmission units；
The first sides 211-；
212- the second sides；
213- stabilization rollers；
The first cameras of 22-；
23- second cameras；
24- light sources.
The drawings herein are incorporated into the specification and forms part of this specification, and shows the implementation for meeting the application
Example, and the principle together with specification for explaining the application.
Specific implementation mode
It is described in further detail below by specific embodiment and in conjunction with attached drawing to the application.
The embodiment of the present application provides a kind of detection device, is used for the detection of pole piece, can be examined to the edge of pole piece
It surveys, it is of course also possible to which other positions to pole piece are detected.As shown in Figure 1, pole piece 10 includes ontology 11 and lug 12,
In the production process of pole piece 10, usually cut to form ontology 11 and lug 12 by die-cutting process, but certainly due to mold cutter
The characteristics of body, after dicing, there may be wire drawing, hairs at the edge (edge for including the edge of ontology 11 and lug 12) of pole piece 10
The problems such as thorn, in order to avoid wire drawing, burr etc. cause electrode assembly that short circuit occurs when forming electrode assembly, after cutting action
It needs to be detected pole piece.
As Figure 1-Figure 2, detection device 20 includes transmission unit 21 and detection unit, and transmission unit 21 is examined with pole piece
Supporting surface is surveyed, for supporting pole piece 10 when detecting, i.e., in 10 transmission process of pole piece, pole piece 10 is transmitted to pole piece detection branch
Pole piece 10 is detected when support face.Detection unit includes the first camera 22 and second camera 23,22 He of the first camera
Second camera 23 is respectively arranged at pole piece detection supporting surface along the both sides of first direction Z, and pole piece detection is transmitted in pole piece 10
When supporting surface, the first camera 22 and second camera 23 are located at pole piece 10 along the both sides of first direction Z, to shoot respectively
Opposite sides of the pole piece 10 along first direction Z；And the optical axis of first optical axis of camera 22, second camera 23 is both with respect to pole
Piece detection supporting surface is obliquely installed, i.e., the optical axis of the first camera 22, the optical axis of second camera 23 incline both with respect to pole piece 10
Tiltedly.Wherein, above-mentioned first direction Z detects supporting surface perpendicular to pole piece.
Above-mentioned detection device, is provided with transmission unit 21 and detection unit, and detection unit includes being set to 10 both sides of pole piece
The first camera 22 and second camera 23, when pole piece 10 is sent to pole piece by transmission unit 21 detects supporting surface, the
One camera 22 and second camera 23 respectively shoot the opposite both sides of pole piece 10, by captured image into
Row analysis, determines whether the pole piece 10 meets the requirements.Obviously, the application can realize automatically pole piece 10 by transmission unit 21
Change detection, ensure the efficiency that pole piece 10 detects, by the way that the accuracy rate of detection can be improved to the analysis of image, and then ensures pole piece
10 quality avoids causing electrode assembly short-circuit due to burr, wire drawing etc. as far as possible, improves the safety of secondary cell.And this
Application considers the wire drawing having and burr perpendicular to pole piece 10, if optical axis and the pole of the first camera 22 and second camera 23
It if piece 10 is vertically arranged, may lead to that the part wire drawing and burr can not be differentiated in image, influence the accuracy of detection, because
This, the first camera 22 is arranged in the application and the optical axis of second camera 23 is tilted both with respect to pole piece detection supporting surface, with clear
Burr and the wire drawing of all angles are differentiated by Chu, and then improve the accuracy that pole piece 10 detects.
It is to be appreciated that detection device may include controller (not shown), transmission unit 21, the first camera 22
It can be connect with controller with second camera 23, with the transmission rate of controlling transmission unit 21, startup and stopping, and control
It makes the first camera 22 and second camera 23 shoots pole piece 10, the first camera 22 and second camera 23 can be same
Shi Jinhang is shot, can also one first shoot, shoot after another.Controller is equipped with image processing software, the image of shooting
It can be handled by image processing software, to determine whether the pole piece 10 meets the requirements.Certainly, the application is not limited to image
Processing software by other softwares or directly can also carry out judging whether captured pole piece 10 meets wanting by human eye
It asks.
In a kind of embodiment, detection device 20 further includes flaw labeling unit (not shown), and flaw labeling unit can
Marking machine is thought, for marking undesirable pole piece 10, flaw labeling unit that can be connect with controller, when controller is logical
When crossing the image processing software undesirable pole piece 10 of discovery, the pole piece 10 is marked in control flaw labeling unit, from
And distinguish non-defective unit with substandard products in the case that non-stop-machine, to improve the production efficiency of pole piece 10.
Above-mentioned detection device 20 can be both detected after pole piece 10 is cut；It can also be given birth to the cutting of pole piece 10
Producing line forms automatic production line, i.e. side cutting edge detects, to further increase the production efficiency of pole piece 10, in the embodiment
In, the transmission unit 21 of detection device 20 can be separately provided with the transmission unit of cutting production line, can also share a set of biography
Defeated unit.
First camera 22 and second camera 23 can be oppositely arranged with pole piece 10, in order to improve the edge graph of pole piece 10
Image sharpness, in a kind of embodiment, detection unit is set to side of the transmission unit 21 relative to transmission direction X, that is to say, that
Detection unit is set to the side of the Y in a second direction of transmission unit 21, wherein and second direction Y is the width direction of pole piece 10,
It is parallel to pole piece detection supporting surface, and perpendicular to the transmission direction X of transmission unit 21.As shown in Figure 1, Y in a second direction, transmission
There is unit 21 first side 211 and the second side 212, the first side 211 at least side in the second side 212 to be provided with detection unit.
Preferably, the both sides of the Y in a second direction of transmission unit 21 are both provided with detection unit, that is to say, that the first side 211
It is both provided with detection unit with the second side 212, this mode, the both sides for being particularly suitable for the Y in a second direction of ontology 11 are stretched out
The pole piece 10 of lug 12 can simultaneously be detected the both sides of the Y in a second direction of pole piece 10, further increase the inspection of pole piece 10
Survey efficiency.
Wherein, the first camera 22 and second camera 23 can be respectively set there are one, two or more, two
The quantity of person can be equal, can not also be equal.In a kind of embodiment, in a detection unit, the first camera 22 and second
There are one camera 23 is respectively set, as shown in Figure 1 and Figure 2, pole piece detection supporting surface is respectively set along the both sides of first direction Z
There are one the first camera 22 and a second cameras 23, with simplify control program, especially simplify image processing program, carry
The detection efficiency of high pole piece 10.
In the same detection unit, the optical axis of one of them the first camera 22 and one of second camera 23
Optical axis can be coplanar, can also antarafacial.In a kind of embodiment, in the same detection unit, at least one first camera 22
Optical axis and the optical axis of a second camera 23 be located at same common plane and at least exist that is, in the same detection unit
Such a first camera 22 and at least there is such a second camera 23, their optical axis is coplanar with, and the two
Coplanar common plane is vertical with pole piece detection supporting surface, as shown in Fig. 2, when pole piece detection supporting surface is located at horizontal plane, it should
First camera 22 and the second camera 23 are vertically arranged.In 10 transmit process of pole piece, the burr of same place is drawn
Silk may be touched and state changes, if cannot be shot simultaneously to the both sides up and down at this, may be taken the photograph first
As first 22 shooting pole piece 10 upside when, burr, wire drawing are located at the downside of pole piece 10, and in the shooting pole piece 10 of second camera 23
Downside when, these burrs, wire drawing be touched again in the image for causing both sides to the upside of pole piece 10 be difficult find these hairs
Thorn, wire drawing, lead to the Quality estimation mistake to pole piece 10.And above-mentioned this mode is used, it can be to the same of same pole piece 10
Both sides up and down at position are carried out at the same time shooting, no matter burr, wire drawing are in upside or downside, at least the first camera 22 at this time
It can be taken with one of second camera 23, to preferably show actual conditions of the pole piece 10 at this, raising pole
The accuracy rate that piece 10 detects.It should be noted that in the same detection unit, can also multiple first cameras 22 light
Axis, the optical axis of multiple second cameras 23 are coplanar；Alternatively, light is not present with each second camera 23 in each first camera 22
The first coplanar camera 22 of axis and second camera 23.
In order to preferably take the burr everywhere of pole piece 10, wire drawing, the optical axis and second camera of the first camera 22
The angle of 23 optical axis and pole piece detection supporting surface is 30 °~60 °, such as 30 °, 35 °, 40 °, 45 °, 50 °, 55 °, 60 °,
That is the optical axis of the first camera 22 and the angle of pole piece 10 are 30 °~60 °, optical axis and the pole piece 10 of second camera 23
Angle be 30 °~60 °.
In addition, detection unit further includes light source 24, the first camera 22 is connected separately with light source 24 with second camera 23,
By increasing light source 24, environment can be illuminated when the first camera 22, second camera 23 are shot, improve image
Shooting quality identifies convenient for the image procossing in later stage, improves the accuracy that pole piece 10 detects.
Further, above-mentioned light source is annular light source, as shown in Figure 1, annular light source is set to the first camera 22 and the
The periphery of two cameras 23 as can make the light of arrival pole piece 10 relatively uniform as possible, avoid shade by this annular light source
Generation, preferably improve image shooting quality, improve pole piece 10 accuracy in detection.
Above-mentioned light source 24 can be connect with controller, to control the opening and closing of light source 24 by controller.Certainly,
One camera 22 and second camera 23 can also only one be connected with light source 24；Including multiple first cameras 22 and multiple
It, can some or all connection light sources 24 only therein when second camera 23.
In the various embodiments described above, transmission unit 21 includes the delivery roll (not shown) being arranged along above-mentioned transmission direction X,
Delivery roll can be arranged there are two, three or more, the axis of each delivery roll is substantially parallel, and perpendicular to above-mentioned transmission side
To X.Pole piece 10 bypasses delivery roll, wherein pole piece detection supporting surface can be set on delivery roll.
However, the transmission path of this transmission unit 21 is long, it is also easy to produce shake in 10 transmission process of pole piece, influences
The image quality at 10 edge of pole piece, the especially image quality of burr, wire drawing etc. influence the accuracy of the detection of pole piece 10.For this purpose,
The detection device of the application further includes pole piece stabilization moving cell (not shown), and pole piece stabilization list is provided at detection unit
Member improves the image quality at 10 edge of pole piece to alleviate the shake for even being eliminated pole piece 10 near pole piece detection supporting surface.
Specifically, pole piece stabilization moving cell includes stabilization roller 213, along the transmission direction X of transmission unit 21, pole piece detection
The both ends of supporting surface are both provided with stabilization roller 213, i.e. the projection of Y in a second direction, and detection unit, pole piece detection supporting surface are equal
It is set between two stabilization rollers 213.Pole piece detection supporting surface is disposed adjacent with two stabilization rollers 213.Transmission unit 21
It is mainly transmitted by delivery roll, using this stabilization moving cell, stabilization moving cell can be set in transmission unit 21, just
In the setting of stabilization moving cell and transmission unit 21, or even the delivery roll in transmission unit 21 is can simultaneously serve as, reduces transmission
The number of roller, at this point, pole piece detection supporting surface can be set on the stabilization roller 213.
In addition, pole piece 10, in transmission process, the edge of pole piece 10 may will produce decarburization phenomenon, lead to the first camera
22, the image that second camera 23 is shot occurs abnormal, influences the accuracy of detection, in order to solve this problem, the application also wraps
The vacuum unit being set at detection unit is included, is siphoned away the carbon powder of generation by vacuum unit, ensures the first camera
22 and second camera 23 image quality.The vacuum orifice of vacuum unit can be directed at pole piece 10 along above-mentioned second direction Y
Edge.
It should be noted that Fig. 1, transmission unit shown in Figure 2 21 are horizontally disposed, i.e. transmission direction X and second party
It is located on horizontal plane to Y, the first camera 22 and second camera 23 are set on vertical direction, but in actual use, not
It is confined to the setting angle, detection device can integrally be installed with any angle, the face as formed by transmission direction X and second direction Y
Can be in unspecified angle with horizontal plane.
The foregoing is merely the preferred embodiments of the application, are not intended to limit this application, for the skill of this field
For art personnel, the application can have various modifications and variations.Within the spirit and principles of this application, any made by repair
Change, equivalent replacement, improvement etc., should be included within the protection domain of the application.
Claims (10)
1. a kind of detection device is used for the detection of pole piece, which is characterized in that including：
There is transmission unit pole piece to detect supporting surface；With
Detection unit, including the first camera and second camera,
First camera and the second camera are respectively arranged at the pole piece and detect supporting surface along the two of first direction
Side；The optical axis of first camera, the optical axis of the second camera are set both with respect to pole piece detection supporting surface inclination
It sets；
Wherein, the first direction detects supporting surface perpendicular to the pole piece.
2. detection device according to claim 1, which is characterized in that at least one in the same detection unit
The optical axis of the optical axis of first camera and at least one second camera is located at same common plane, described public flat
Face is vertical with pole piece detection supporting surface.
3. detection device according to claim 1, which is characterized in that in the same detection unit, the pole piece
Detection supporting surface along the both sides of the first direction be respectively set there are one first camera and one it is described second camera shooting
Head.
4. detection device according to claim 1, which is characterized in that the optical axis of first camera and described second is taken the photograph
As the angle that the optical axis of head detects supporting surface with the pole piece is 30 °~60 °.
5. detection device according to claim 1, which is characterized in that the detection unit is set to the transmission unit edge
The side of second direction, the second direction are parallel to the pole piece detection supporting surface, and perpendicular to the biography of the transmission unit
Defeated direction.
6. detection device according to claim 5, which is characterized in that the transmission unit is along the both sides of the second direction
It is both provided with the detection unit.
7. detection device according to claim 1, which is characterized in that the detection unit further includes light source, and described first
Camera is connected separately with the light source with the second camera.
8. detection device according to claim 7, which is characterized in that the light source is annular light source, the annular light source
It is set to first camera periphery or the periphery of the second camera.
9. according to claim 1-8 any one of them detection devices, which is characterized in that further include pole piece stabilization moving cell, institute
It includes stabilization roller to state pole piece stabilization moving cell, along the transmission direction of the transmission unit, the two of the pole piece detection supporting surface
End is both provided with the stabilization roller.
10. according to claim 1-8 any one of them detection devices, which is characterized in that further include flaw labeling unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820290812.8U CN207816852U (en) | 2018-03-01 | 2018-03-01 | Detection device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820290812.8U CN207816852U (en) | 2018-03-01 | 2018-03-01 | Detection device |
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| CN207816852U true CN207816852U (en) | 2018-09-04 |
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ID=63320538
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| CN201820290812.8U Active CN207816852U (en) | 2018-03-01 | 2018-03-01 | Detection device |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109324061A (en) * | 2018-10-11 | 2019-02-12 | 广东德尔智慧工厂科技有限公司 | A kind of burr detection device and method of lithium battery pole slice |
| CN109613013A (en) * | 2018-10-23 | 2019-04-12 | 广州量子激光智能装备有限公司 | Tab pole piece burr detection method and system |
| CN110658216A (en) * | 2019-11-05 | 2020-01-07 | 东旭集团有限公司 | Glass edge detection device and method |
| CN110793974A (en) * | 2019-11-27 | 2020-02-14 | 湖南科创信息技术股份有限公司 | Panel material edge defect detecting system |
| CN111735825A (en) * | 2020-08-19 | 2020-10-02 | 深圳市中钞科信金融科技有限公司 | Pole piece edge detection device and detection method |
| CN113406102A (en) * | 2021-05-07 | 2021-09-17 | 安徽风正新材料科技有限公司 | Battery aluminum foil side burr detection device and detection method |
| CN114354610A (en) * | 2021-12-03 | 2022-04-15 | 广州超音速自动化科技股份有限公司 | Surface detection equipment for battery cell |
-
2018
- 2018-03-01 CN CN201820290812.8U patent/CN207816852U/en active Active
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109324061A (en) * | 2018-10-11 | 2019-02-12 | 广东德尔智慧工厂科技有限公司 | A kind of burr detection device and method of lithium battery pole slice |
| CN109324061B (en) * | 2018-10-11 | 2023-09-22 | 广东德尔智慧工厂科技有限公司 | Burr detection device and method for lithium battery pole piece |
| CN109613013A (en) * | 2018-10-23 | 2019-04-12 | 广州量子激光智能装备有限公司 | Tab pole piece burr detection method and system |
| CN109613013B (en) * | 2018-10-23 | 2023-09-01 | 广州量子激光智能装备有限公司 | Method for detecting burrs of pole piece of pole lug |
| CN110658216A (en) * | 2019-11-05 | 2020-01-07 | 东旭集团有限公司 | Glass edge detection device and method |
| CN110793974A (en) * | 2019-11-27 | 2020-02-14 | 湖南科创信息技术股份有限公司 | Panel material edge defect detecting system |
| CN111735825A (en) * | 2020-08-19 | 2020-10-02 | 深圳市中钞科信金融科技有限公司 | Pole piece edge detection device and detection method |
| CN113588687A (en) * | 2020-08-19 | 2021-11-02 | 深圳市中钞科信金融科技有限公司 | Pole piece edge detection device and detection method |
| CN113406102A (en) * | 2021-05-07 | 2021-09-17 | 安徽风正新材料科技有限公司 | Battery aluminum foil side burr detection device and detection method |
| CN114354610A (en) * | 2021-12-03 | 2022-04-15 | 广州超音速自动化科技股份有限公司 | Surface detection equipment for battery cell |
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