CN211401946U - Lithium battery detection device - Google Patents
Lithium battery detection device Download PDFInfo
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- CN211401946U CN211401946U CN201922319619.XU CN201922319619U CN211401946U CN 211401946 U CN211401946 U CN 211401946U CN 201922319619 U CN201922319619 U CN 201922319619U CN 211401946 U CN211401946 U CN 211401946U
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- battery case
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Abstract
This application is applicable to lithium cell technical field, provides a lithium cell detection device, includes: the accommodating structure is provided with an accommodating cavity, the accommodating cavity is used for accommodating a battery shell and a cover plate of the lithium battery and can be used for welding a positive plate in the battery shell and the cover plate; the fixing structure is arranged in the accommodating cavity and connected with the cover plate; the motion structure is used for being fixed in on the battery case, and the motion structure can drive the battery case motion in order to pull positive plate to judge whether motion structure pulls the pulling force of positive plate and reach and predetermine the pulling force value, and drive the battery case after accomplishing the pulling and reset to holding the recovery unit in the chamber or move to the outside selectively. Through setting up containment structure, fixed knot structure and motion structure respectively for apron and positive plate are direct to carry out welding effect and detect after apron and positive plate accomplish weldment work, can detect all lithium cells that carry out weldment work, avoid appearing lou examining the phenomenon, improve the rate of accuracy and the comprehensiveness that welding strength detected.
Description
Technical Field
The utility model belongs to the technical field of the lithium cell, more specifically say, relate to a lithium cell detection device.
Background
In the manufacturing process of the lithium battery, the positive plate of the winding core in the battery case is welded with the cover plate by adopting a laser welding mode. However, in an actual production process, the welding strength between the positive electrode plate and the cover plate is easily affected by the state of the positive electrode plate, and the problems of insufficient welding and welding deviation often occur, so that the welding strength between the cover plate and the positive electrode plate needs to be detected.
At present, the welding strength of the cover plate and the positive plate is generally detected by manually sampling the lithium battery, and the welding strength of the cover plate and the positive plate is judged by detecting the residual condition after the cover plate and the positive plate are separated, so that the lithium battery is difficult to be comprehensively detected, the leakage detection condition is easy to occur, in addition, the detection mode is mainly realized by detecting the residual condition after the cover plate and the positive plate are separated, the misjudgment is easy to generate, and the detection accuracy is lower.
SUMMERY OF THE UTILITY MODEL
The embodiment of the utility model provides an one of purpose lies in: the utility model provides a lithium battery detection device, aims at solving among the prior art, is difficult to carry out comprehensive detection and the low technical problem of detection accuracy to the welding strength of positive plate and apron.
For solving the technical problem, the embodiment of the utility model provides an adopt technical scheme is:
provided is a lithium battery detection device including:
the accommodating structure is provided with an accommodating cavity, the accommodating cavity is used for accommodating a battery case and a cover plate of the lithium battery and can be used for welding a positive plate in the battery case and the cover plate;
the fixing structure is used for being fixed on the cover plate;
and the motion structure is used for being fixed on the battery shell, can drive the battery shell to move so as to pull the positive plate, judges whether the pulling force of the motion structure pulling the positive plate reaches a preset pulling force value, and selectively drives the battery shell to reset into the accommodating cavity or move to an external recovery device after the pulling is finished.
Furthermore, the motion structure comprises a driving part and a clamping part, the clamping part is used for clamping the battery shell, and the driving part is connected with the clamping part and can drive the clamping part to move.
Furthermore, a first sensor is arranged on the clamping piece and can detect the tension of the positive plate pulled by the clamping piece so as to judge whether the tension reaches a preset tension value.
Furthermore, the clamping piece comprises a clamping plate and a magnetic piece, the driving piece is connected to the clamping plate, and the magnetic piece is arranged on the clamping plate and can adsorb the battery shell.
Furthermore, a groove for accommodating the battery case is formed in the clamping plate, and the magnetic part is arranged on the groove.
Furthermore, one end of the clamping plate is provided with a stopping part, and the stopping part can be abutted against the end face of the battery case to limit the battery case.
Furthermore, a second sensor is arranged on the stopping portion, the second sensor is electrically connected to the magnetic attraction piece, and the magnetic attraction piece adsorbs the battery case when the second sensor detects that the stopping portion abuts against the battery case.
Furthermore, the fixed knot constructs including the clamp plate and locates the clearance groove on the clamp plate, the clamp plate is used for locating between battery case and the apron, the clearance groove is used for dodging the positive plate, clamp plate one end be used for supporting tightly in the apron is inboard.
Furthermore, the lithium battery detection device also comprises a camera device, and the camera device can detect the welding point of the cover plate and the positive plate.
The utility model provides a lithium battery detection device's beneficial effect lies in: compared with the prior art, the utility model discloses a set up respectively and hold the structure, fixed knot constructs and motion structure, after battery case and apron realized welding process in holding the structure, apron accessible fixed knot constructs and realizes fixedly, motion structure can drive the battery case motion with the pulling positive plate to the realization is to the detection of the welding strength of apron and positive plate, the back motion structure alternative that finishes detects drives the battery case and resets and carry out one process down to holding the chamber that holds of structure, perhaps drive the battery case motion in order to retrieve the battery case to outside recovery unit. The detection work of the welding strength of the cover plate and the positive plate is directly carried out on the basis of the welding work of the cover plate and the positive plate, all lithium batteries for carrying out the welding work can be detected in real time and comprehensively, the condition of missing detection is avoided, and the detection accuracy and the comprehensiveness of the welding strength between the positive plate and the cover plate are improved.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the embodiments or the prior art descriptions will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without inventive labor.
Fig. 1 is a plan structure diagram of a lithium battery matching accommodating structure and a fixing structure provided by an embodiment of the present invention;
fig. 2 is a three-dimensional structure diagram of a movement structure of a lithium battery detection device provided in an embodiment of the present invention;
fig. 3 is a three-dimensional structure diagram of a fixing structure of a lithium battery detection device provided by the embodiment of the present invention.
Wherein, in the figures, the respective reference numerals:
1-a containment structure; 2-a clamping member; 21-a clamping plate; 211-grooves; 212-a stop; 22-a magnetic attachment; 23-a first sensor; 24-a second sensor; 3, pressing a plate; 31-clearance groove; 4-a lithium battery; 41-battery case; 42-positive plate; 43-cover plate.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present invention, and should not be construed as limiting the present invention.
In the description of the present invention, it is to be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are merely for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
Referring to fig. 1 to fig. 3, a lithium battery detection device according to an embodiment of the present invention includes an accommodating structure 1, a fixing structure and a moving structure.
Specifically, holding structure 1 is last to have seted up and to have held the chamber, and the appearance setting of the appearance cooperation lithium cell 4 in chamber holds, and when the positive plate 42 and the apron 43 that need be to lithium cell 4 welded, the battery case 41 and the apron 43 of lithium cell 4 hold in holding the chamber, and positive plate 42 and the apron 43 in the battery case 41 can form the welding in holding the chamber. After the cover plate 43 and the positive plate 42 are welded, the fixing structure moves to the cover plate 43 and is fixed on the cover plate 43, so that the cover plate 43 is fixed in the accommodating cavity, the moving structure moves to the battery case 41 to be fixed with the battery case 41, the moving structure can drive the battery case 41 to move and judge whether the pulling force of the moving structure pulling the positive plate 42 reaches a preset pulling force value or not, so that the welding strength of the cover plate 43 and the positive plate 42 is detected, the moving structure can also selectively drive the battery case 41 to reset to move to the accommodating cavity after the positive plate 42 finishes pulling, or the battery case 41 is driven to move to an external recovery device to realize recovery operation. Therefore, the lithium battery 4 is fixed through the fixed structure and the moving structure respectively so as to realize that the detection work of the welding strength is directly performed after the welding is completed on the cover plate 43 and the positive plate 42, namely, the welding strength detection is required to be realized after the welding is completed on each lithium battery 4, the comprehensive detection of the lithium battery 4 is realized, the phenomenon of missing detection is avoided, and the detection accuracy is improved.
The embodiment of the utility model provides an in, hold structure 1 through setting up respectively, fixed knot constructs and motion structure, battery case 41 and apron 43 realize behind the welding process in holding structure 1, apron 43 accessible fixed knot constructs to realize fixedly, motion structure can drive battery case 41 motion with pulling positive plate 42, thereby realize the detection to the welding strength of apron 43 and positive plate 42, the back motion structure alternative that finishes detects drives battery case 41 and resets to holding structure 1 hold the chamber and carry out one process down, perhaps drive battery case 41 and move to outside recovery unit in order to retrieve battery case 41. The detection work of the welding strength of the cover plate 43 and the positive plate 42 is directly performed on the basis of the welding work of the cover plate 43 and the positive plate 42, all the lithium batteries 4 which are subjected to the welding work can be detected in real time and comprehensively, the condition of missing detection is avoided, and the detection accuracy and the comprehensiveness of the welding strength between the positive plate 42 and the cover plate 43 are improved.
Specifically, in this embodiment, after the moving structure drives the battery case 41 to move to complete the detection of the welding strength between the positive plate 42 and the cover plate 43, when the positive plate 42 is not disconnected from the cover plate 43, the moving structure drives the battery case 41 to be reset into the accommodating cavity of the accommodating structure 1, so as to perform the next process; when the positive plate 42 is disconnected from the cover plate 43, the moving structure may move the battery case 41 to an external recycling device, so as to recycle the battery case 41.
In this embodiment, the motion structure drives the battery case 41 to pull the positive plate 42, thereby completing the pulling action on the positive plate 42, specifically, the motion structure drives the battery case 41 to move, and simultaneously monitors and determines whether the pulling force of the motion structure reaches the preset pulling force value. Of course, there is no limitation on the specific pulling operation thereof.
Specifically, in this embodiment, the position of the lithium battery 4 shown in fig. 1 is a horizontal placement direction, and after the moving structure drives the battery case 41 to move away from the accommodating structure 1, the moving structure drives the battery case 41 to move in the horizontal direction to pull the positive plate 42, which is not limited herein.
Specifically, in the present embodiment, the accommodating structure 1 may be configured as a draw tape jig or a mold for implementing welding of the lithium battery 4, which, of course, is not limited herein.
Further, referring to fig. 2, in the present embodiment, the moving structure includes a driving member and a clamping member 2, the clamping member 2 is connected to an output end of the driving member, the clamping member 2 is used for clamping the battery case 41, and the driving member can drive the clamping member 2 to move. After the cover plate 43 and the positive plate 42 are welded, the fixing structure moves to be connected with the cover plate 43, the driving part drives the clamping piece 2 to move to the battery case 41 to clamp the battery case 41, after the clamping piece 2 clamps the battery case 41, the driving part can drive the clamping piece 2 to drive the battery case 41 to move to pull the positive plate 42 so as to detect the welding strength, and after the detection of the welding strength is completed, the clamping piece 2 is driven to drive the battery case 41 to reset to the accommodating cavity, or the clamping piece 2 is driven to drive the battery case 41 to move to an external recovery device so as to realize recovery.
In an embodiment of the present invention, the holding member 2 may be configured as a clamp, but is not limited thereto.
Further, in this embodiment, the clamping member 2 is provided with the first sensor 23, the first sensor 23 is a force sensor, when the clamping member 2 clamps the battery case 41 and drives the battery case 41 to move so as to pull the positive plate 42, the first sensor 23 can detect the tension of the positive plate 42 pulled by the clamping member 2 at this time, and determine whether the tension reaches a preset tension value, so that the force of the positive plate 42 can be accurately pulled, and the accuracy of the welding strength detection is improved.
In this embodiment, after the clamping member 2 drives the battery case 41 to move for a certain time, the first sensor 23 can detect the force of the clamping member 2 pulling the positive plate 42, and when the pulling force reaches or exceeds the preset pulling force value, the detection of the welding strength can be completed.
Further, referring to fig. 2, in the present embodiment, the clamping member 2 includes a clamping plate 21 and a magnetic member 22, the output end of the driving member is connected to the clamping plate 21, and the magnetic member 22 is disposed on the clamping plate 21 and can absorb the battery case 41. When the driving member drives the clamping member 2 to move to the position of the battery case 41, the magnetic attracting member 22 can attract the battery case 41 to the clamping plate 21, so as to fix the battery case 41.
Further, referring to fig. 2, in the present embodiment, a groove 211 is formed on the clamping plate 21, the shape of the groove 211 is adapted to the shape of the battery case 41, so that the battery case 41 can be accommodated in the groove 211, and the magnetic member 22 is disposed on the groove 211, so that the magnetic member 22 absorbs the battery case 41 into the groove 211.
Further, referring to fig. 2, in the present embodiment, a stopping portion 212 is disposed at one end of the clamping plate 21, and the stopping portion 212 can abut against an end surface of the battery case 41 to limit the battery case 41.
Specifically, the stopping portion 212 is disposed beside the groove 211, when the battery case 41 is accommodated in the groove 211, the magnetic attraction member 22 attracts the battery case 41, and at this time, the end surface of the battery case 41 stops at the stopping portion 212, so that the battery case 41 is prevented from sliding in the groove 211, and the battery case 41 is accurately limited.
Further, in the present embodiment, the second sensor 24 is disposed on the stopping portion 212, the second sensor 24 is electrically connected to the magnetic attraction member 22, when the clamping plate 21 moves under the driving of the driving member until the stopping portion 212 stops on the end surface of the battery case 41, the second sensor 24 can detect the position information of the clamping plate 21, and the magnetic attraction member 22 can achieve an attraction effect on the battery case 41 according to the information detected by the second sensor 24, so that the battery case 41 can be accurately clamped on the accurate position of the clamping plate 21.
In this embodiment, the magnetic attraction member 22 is configured as an electromagnet, the electromagnet is electrically connected to the second sensor 24, and when the second sensor 24 detects that the stopping portion 212 stops on the end surface of the battery case 41, the electromagnet is energized to attract the battery case 41.
Further, please refer to fig. 3, in this embodiment, the fixing structure includes a pressing plate 3 and a clearance groove 31 disposed on the pressing plate 3, the clearance groove 31 is used for avoiding the positive plate 42, when the cover plate 43 is welded to the positive plate 42 and the welding strength needs to be detected, the pressing plate 3 moves to a position between the cover plate 43 and the battery case 41, and one end of the pressing plate 3 abuts against the inner side of the cover plate 43, so as to fix the cover plate 43, and prevent the cover plate 43 from moving when the moving structure drives the battery case 41 to move to pull the positive plate 42, so as to affect the detection effect of the welding strength. At this time, the positive plate 42 passes through the clearance groove 31 on the pressing plate 3, so that the damage to the positive plate 42 due to the action of the pressing plate 3 is avoided, meanwhile, the accuracy of the effect of the welding strength between the positive plate 42 and the cover plate 43 can be enhanced due to the arrangement of the clearance groove 31, and the influence on the welding detection effect due to the damage to the positive plate 42 by the pressing plate 3 is avoided.
Specifically, in this embodiment, in order to enhance the strength of the pressing plate 3 for pressing the cover plate 43, according to the actual process requirement, two opposite inner side walls of the clearance groove 31 are both configured to be circular arcs, and of course, the shape is not limited herein.
In this embodiment, one end of the pressing plate 3, which is far away from the cover plate 43, is disposed beside the battery case 41, and a gap is left between the pressing plate 3 and the battery case 41, so that the pressing plate 3 can move between the cover plate 43 and the battery case 41.
Further, in this embodiment, the lithium battery detection device further includes a camera device, when the detection of the welding strength of the cover plate 43 and the positive plate 42 is completed and the movement structure drives the battery case 41 to reset to the accommodating cavity, the camera device can detect the welding point of the cover plate 43 and the positive plate 42 of the lithium battery 4, so as to realize the second detection of the welding strength of the cover plate 43 and the positive plate 42, and in this embodiment, the welding strength of the cover plate 43 and the positive plate 42 is detected through the double detection steps, thereby enhancing the accuracy of the detection.
Of course, in this embodiment, the camera device may also detect the welding strength of the cover plate 43 and the positive plate 42 before the moving structure drives the battery case 41 to move, and the specific time when the camera device detects the welding strength of the cover plate 43 and the positive plate 42 is not limited herein.
In this embodiment, the specific detection working principle of the lithium battery detection device is as follows:
after the cover plate 43 and the positive plate 42 are welded in the accommodating cavity, the pressing plate 3 moves to a position between the cover plate 43 and the battery case 41 and abuts against the cover plate 43, the clamping plate 21 moves to the end surface of the battery case 41 to stop at the stopping portion 212 under the driving of the driving member, the second sensor 24 detects that the stopping portion 212 stops at the battery case 41, the magnetic attraction member 22 is electrified to adsorb the battery case 41 in the groove 211, the driving member drives the clamping plate 21 to drive the battery case 41 to move so as to pull the positive plate 42, the first sensor 23 detects the force of the clamping member 2 pulling the positive plate 42 at the moment, when the magnitude of the pulling force reaches or exceeds a preset pulling force value, the detection of the welding strength effect is completed, after the pulling of the positive plate 42 is completed, the driving member drives the clamping plate 21 to drive the battery case 41 to reset into the accommodating cavity or move into the recovery device, the camera device performs a second detection on the welding strength of the, the containment structure 1 moves the entire lithium battery 4 so as to perform the next process on the lithium battery 4.
The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.
Claims (9)
1. A lithium battery detection device, comprising:
the accommodating structure is provided with an accommodating cavity, the accommodating cavity is used for accommodating a battery case and a cover plate of the lithium battery and can be used for welding a positive plate in the battery case and the cover plate;
the fixing structure is used for being fixed on the cover plate;
and the motion structure is used for being fixed on the battery shell, can drive the battery shell to move so as to pull the positive plate, judges whether the pulling force of the motion structure pulling the positive plate reaches a preset pulling force value, and selectively drives the battery shell to reset into the accommodating cavity or move to an external recovery device after the pulling is finished.
2. The lithium battery detection device as claimed in claim 1, wherein the moving structure comprises a driving member and a clamping member, the clamping member is used for clamping the battery case, and the driving member is connected to the clamping member and can drive the clamping member to move.
3. The lithium battery detection device as claimed in claim 2, wherein a first sensor is disposed on the clamping member, and the first sensor can detect the pulling force of the clamping member pulling the positive plate to determine whether the pulling force reaches a preset pulling force value.
4. The lithium battery detection device as claimed in claim 2, wherein the clamping member comprises a clamping plate and a magnetic member, the driving member is connected to the clamping plate, and the magnetic member is disposed on the clamping plate and can absorb the battery case.
5. The lithium battery detection device as claimed in claim 4, wherein the clamping plate is provided with a groove for accommodating the battery case, and the magnetic member is disposed on the groove.
6. The lithium battery detection device as claimed in claim 4, wherein a stop portion is disposed at one end of the clamping plate, and the stop portion can abut against an end surface of the battery case to limit the battery case.
7. The lithium battery detection device as claimed in claim 6, wherein a second sensor is disposed on the stopper portion, the second sensor is electrically connected to the magnetic member, and the magnetic member attracts the battery case when the second sensor detects that the stopper portion abuts against the battery case.
8. The lithium battery detection device as claimed in claim 1, wherein the fixing structure comprises a pressing plate and a clearance groove arranged on the pressing plate, the pressing plate is arranged between the battery case and the cover plate, the clearance groove is used for avoiding the positive plate, and one end of the pressing plate is used for abutting against the inner side of the cover plate.
9. The lithium battery detection device as claimed in any one of claims 1 to 8, further comprising a camera device, wherein the camera device can detect the welding point of the welding of the cover plate and the positive plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922319619.XU CN211401946U (en) | 2019-12-20 | 2019-12-20 | Lithium battery detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922319619.XU CN211401946U (en) | 2019-12-20 | 2019-12-20 | Lithium battery detection device |
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| Publication Number | Publication Date |
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| CN211401946U true CN211401946U (en) | 2020-09-01 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201922319619.XU Active CN211401946U (en) | 2019-12-20 | 2019-12-20 | Lithium battery detection device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113497309A (en) * | 2021-08-02 | 2021-10-12 | 安徽和鼎机电设备有限公司 | Lithium battery electrode series or parallel assembling and welding device |
-
2019
- 2019-12-20 CN CN201922319619.XU patent/CN211401946U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113497309A (en) * | 2021-08-02 | 2021-10-12 | 安徽和鼎机电设备有限公司 | Lithium battery electrode series or parallel assembling and welding device |
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