CN221056344U - Battery cell detection device - Google Patents
Battery cell detection device Download PDFInfo
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- CN221056344U CN221056344U CN202322212138.5U CN202322212138U CN221056344U CN 221056344 U CN221056344 U CN 221056344U CN 202322212138 U CN202322212138 U CN 202322212138U CN 221056344 U CN221056344 U CN 221056344U
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- 238000001514 detection method Methods 0.000 title claims abstract description 34
- 230000007246 mechanism Effects 0.000 claims abstract description 112
- 230000007306 turnover Effects 0.000 claims description 9
- 238000012546 transfer Methods 0.000 claims description 5
- 238000007689 inspection Methods 0.000 claims description 4
- 238000012360 testing method Methods 0.000 claims description 4
- 238000005491 wire drawing Methods 0.000 abstract description 20
- 210000004027 cell Anatomy 0.000 description 148
- 238000002844 melting Methods 0.000 description 10
- 230000008018 melting Effects 0.000 description 10
- 239000011248 coating agent Substances 0.000 description 6
- 238000000576 coating method Methods 0.000 description 6
- 238000010586 diagram Methods 0.000 description 5
- 238000012545 processing Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 4
- 238000013461 design Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 239000012535 impurity Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 238000004026 adhesive bonding Methods 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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Abstract
The application relates to the technical field of batteries and discloses a battery cell detection device, which comprises a carrying table and an image acquisition assembly, wherein the image carrying table and the image acquisition assembly are arranged at intervals along a first direction; the carrying table is used for placing the battery cell to be detected; the image acquisition assembly comprises a first annular light source and a first camera shooting mechanism, and the carrying table, the battery cell, the first annular light source and the first camera shooting mechanism are sequentially arranged along a first direction; the first annular light source is used for emitting first light rays to the battery cell, and the first camera shooting mechanism is used for shooting the battery cell to obtain an image of the battery cell; the distance between the orthographic projection of the end, closest to the electric core, of the first annular light source on the first plane and the orthographic projection of the part, to be detected, of the electric core on the first plane is L, and the shortest distance from the end, closest to the electric core, of the first annular light source to the carrying table is H, and H/L is less than or equal to tan30 degrees. The battery cell detection device disclosed by the application can detect the battery cells and can detect the battery cells with wiredrawing.
Description
Technical Field
The application relates to the technical field of batteries, in particular to a battery cell detection device.
Background
To protect the cell shipment and containment, it is often necessary to coat the cell surface with a coating after the cell and top cap are welded. The bottom of the envelope is fixed by a blue tape, and the contact position of the envelope and the top cover is heated and melted by using a hot frit, so that the plastic frame on the envelope and the top cover are fixed together. In the process, if impurities exist at the poor contact or contact position between the thermal frit and the coating or the top cover, the coating at the thermal melting point is drawn, and the drawing wires can become impurities when the cover plate is welded to the shell, so that hole explosion is caused, and the quality of the battery cell is further affected.
Disclosure of utility model
The application provides a battery cell detection device which can detect a battery cell and pick up the battery cell with wire drawing, so that the welding of the battery cell is prevented from being influenced by the wire drawing.
The application provides a battery cell detection device, which comprises a carrying table and an image acquisition assembly, wherein the carrying table and the image acquisition assembly are arranged at intervals along a first direction;
The carrying table is used for placing a battery cell to be detected, and the part to be detected of the battery cell is arranged towards the image acquisition assembly;
The image acquisition assembly comprises a first annular light source and a first camera shooting mechanism, the first annular light source is positioned between the first camera shooting mechanism and the carrying platform, the battery cell, the first annular light source and the first camera shooting mechanism are sequentially arranged along the first direction;
The first annular light source is used for emitting first light rays to the surface of one side, facing the first annular light source, of the battery cell, the first camera mechanism is used for receiving the first light rays reflected by the battery cell, and shooting the battery cell to obtain an image of the surface, used for receiving the first light rays, of the battery cell;
The distance between the orthographic projection of the end, closest to the battery cell, of the first annular light source on a first plane and the orthographic projection of the part, to be detected, of the battery cell on the first plane is L, the shortest distance from the end, closest to the battery cell, of the first annular light source to the carrying table is H, H/L is less than or equal to tan30 degrees, and the first plane is a plane perpendicular to the first direction.
The battery cell detection device is provided with a first annular light source and a first shooting mechanism, wherein the first light source is used for emitting first light rays to the surface of the battery cell, and the first shooting mechanism is used for acquiring images of the battery cell. Through the design make H/L be less than or equal to tan30, that is, when first annular light source launches first light to the electric core, incident angle between first light and the electric core is less, can make more first light can shine the diolame and produce the position of wire drawing to can clearly shine out the profile of wire drawing, can clearly show the profile of wire drawing in the image of electric core that first camera mechanism took, and then be favorable to the detection to the electric core. In addition, because the first annular light source is annular structure, when the first light is emitted to the battery cell, the first light can be irradiated to the surface of the battery cell in multiple directions, so that the outline of the wire drawing can be further and clearly irradiated, and the accuracy of detecting the battery cell is improved. When the wire drawing of the battery core is detected, the wire-drawn battery core can be picked up in time, so that the wire drawing is prevented from affecting the welding of the battery core.
Drawings
FIG. 1 is a schematic diagram of an overall structure of a cell detection device according to an embodiment of the present application;
FIG. 2 is a side view of the cell testing device of FIG. 1;
FIG. 3 is a schematic diagram illustrating the operation of an image acquisition assembly according to an embodiment of the present application;
FIG. 4 is a schematic diagram illustrating a positional relationship between a first ring-shaped light source and a portion to be detected of a battery cell according to an embodiment of the present application;
FIG. 5 is a schematic structural diagram of a second annular light source and a second camera mechanism according to an embodiment of the present application;
FIG. 6 is a top view of a cell detection device according to an embodiment of the present application;
FIG. 7 is a schematic diagram of another overall structure of a cell detection device according to an embodiment of the present application;
Fig. 8 is a side view of the cell testing device of fig. 6.
In the figure:
100-mounting table; 200-cell; 300-a fixing mechanism; 310-supporting columns; 320-connecting frames; 321-a second guide rail; 400-an image acquisition component; 410-a first annular light source; 411-first through holes; 420-a first camera mechanism; 430-a second annular light source; 431-a second through hole; 440-a second camera mechanism; 500-a moving mechanism; 510-fixing frame; 511-a first rail; 512-pin holes; 520-first connector; 530-a second connector; 540-a third connector; 600-sorting mechanism; 700-a conveying mechanism; 710-conveyor line.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
Referring to fig. 1 and 2, the cell inspection device according to the embodiment of the present application may include a mounting table 100, a fixing mechanism 300, and an image acquisition assembly 400, wherein the mounting table 100 may be used for placing a cell 200 to be inspected, and when the cell 200 is placed on the mounting table 100, an initial position is that a large surface of the cell 200 is in contact with a surface of the mounting table 100.
Referring to fig. 1 to 3 together, the image capturing unit 400 is spaced apart from the mounting table 100 along a first direction, which is understood to be a direction perpendicular to the large surface of the battery cell 200 when the battery cell 200 is at the initial position on the mounting table 100. The image pickup assembly 400 includes a first ring light source 410 and a first image pickup mechanism 420, and the mounting table 100, the battery cell 200, the first ring light source 410, and the first image pickup mechanism 420 are sequentially arranged in a first direction. The first annular light source 410 is configured to emit a first light beam to a side surface of the battery cell 200 facing the first annular light source 410, the surface of the battery cell 200 can reflect the first light beam after receiving the first light beam, and the reflected first light beam can be received by the first image capturing mechanism 420. The first image capturing mechanism 420 is further configured to capture an image of a surface of the battery cell 200 that reflects the first light to obtain an image of the surface of the battery cell 200.
Specifically, the first annular light source 410 has a first through hole 411 in the middle, and one end of the first through hole 411 is opened towards the first image capturing mechanism 420, and the other end is opened towards the portion to be detected of the battery cell 200. When the first light emitted by the first annular light source 410 is reflected by the surface of the battery cell 200, the reflected first light can be received by the first image capturing mechanism 420 after passing through the first through hole 411. In this embodiment, by providing the first through hole 411, not only the reflected first light is convenient to pass, but also the reflected first light can be emitted toward the first image capturing mechanism 420 in a relatively concentrated manner, so that the first image capturing mechanism 420 can be ensured to receive more first light, and thus the definition of the image is ensured when the image of the portion to be detected of the battery cell 200 is acquired.
The cell detection device in this embodiment may further include a processing module, where the processing module may process the image of the cell 200 captured by the image capturing assembly 400 to detect whether to display the wire drawing profile in the image. And when the wiredrawing outline in the image is detected, error reporting can be carried out, so that an operator can know the production condition in time.
The fixing mechanism 300 may include two support columns 310 and a connection frame 320 between the two support columns 310, and both ends of the connection frame 320 are connected to the two support columns 310, respectively. The two support columns 310 are respectively located at two opposite sides of the mounting table 100, and the two support columns 310 may be arranged along a second direction, which may be understood as a direction perpendicular to the wide-high surface of the battery cell 200, that is, the second direction is perpendicular to the first direction when the battery cell 200 is at the initial position on the mounting table 100. The first ring light source 410 and the first camera mechanism 420 may be mounted on the connection frame 320 so as to enable the first ring light source 410 and the first camera mechanism 420 to remain stable during the process of detecting the battery cells.
In this embodiment, as shown in fig. 4, assuming that the distance between the orthographic projection of the end of the first annular light source 410 closest to the electric core 200 on the first plane and the orthographic projection of the portion to be detected of the electric core 200 on the first plane is L, the shortest distance between the end of the first annular light source 410 closest to the electric core 200 and the mounting table 100 is H, and the first plane is a plane perpendicular to the first direction, H/L is less than or equal to tan30 °. In this embodiment, the portion to be detected of the battery cell 200 can be understood as a position where the film is thermally fused with the plastic under the cover plate. As can be seen from fig. 4, when H/L is less than or equal to tan30 °, it can be also understood that the incident angle between the first light ray emitted by the first annular light source 410 and the battery cell 200 is less than or equal to 30 °, that is, the incident angle is smaller at this time, so that more first light rays can be irradiated onto the wire drawing part generated by the coating, and then the first light rays are reflected from the middle part of the first annular light source 410, so that the reflected first light rays can be more intensively received by the first camera mechanism 420, and thus the wire drawing outline can be clearly irradiated, and the wire drawing outline can be clearly displayed in the image of the battery cell 200 captured by the first camera mechanism 420, thereby being beneficial to the detection of the battery cell 200. In addition, since the first annular light source 410 has an annular structure, when the first light is emitted to the battery cell 200, the first light can be irradiated to the surface of the battery cell 200 in multiple directions, so that the wire drawing outline can be further clearly irradiated, and the accuracy of detecting the battery cell is improved.
The distance between the first image capturing mechanism 420 and the first annular light source 410 is 200±20mm, so that the first image capturing mechanism 420 can be ensured to receive enough first light rays reflected by the battery cell 200, and the wiredrawing outline can be clearly displayed in the image of the battery cell 200 captured by the first image capturing mechanism 420.
In some embodiments, the battery cell detection device may further include a turnover mechanism (not shown in the drawings), which may be used to turn the battery cell 200 placed on the table 100, so that a portion to be detected, which is not detected by the battery cell 200, can be opposite to the image acquisition assembly 400, so that the image acquisition assembly 400 may photograph different surfaces of the battery cell 200, thereby implementing detection on each surface of the battery cell 200. Specifically, when the battery cell 200 is detected, the two large surfaces of the battery cell 200 and the two wide and high surfaces of the battery cell 200 are both provided with the thermal melting points, so that when one battery cell 200 is detected, the turnover mechanism turns over the battery cell 200 three times to realize detection of four surfaces of the battery cell 200.
In some embodiments, with continued reference to fig. 1 and 2, the cell detection apparatus may further include a movement mechanism 500, which movement mechanism 500 may be used to drive the first ring light source 410 and/or the first camera mechanism 420 to move in a first direction or in a second direction. Specifically, the moving mechanism 500 may include a fixing frame 510, a first connecting member 520 and a second connecting member 530, wherein the fixing frame 510 is mounted on the connecting frame 320, a first guide rail 511 extending along a first direction is disposed on the fixing frame 510, the first connecting member 520 and the second connecting member 530 are respectively mounted on the first guide rail 511, and the first connecting member 520 can slide along the first direction relative to the first guide rail 511, and the second connecting member 530 can move along the first direction relative to the first guide rail 511. The first annular light source 410 may be fixedly connected to the first connecting member 520, and when the first connecting member 520 slides along the first direction, the first annular light source 410 may be driven to move along the first direction. The first camera mechanism 420 may be fixedly connected to the second connecting member 530, and when the second connecting member 530 slides along the first direction, the first camera mechanism 420 may be driven to move along the first direction.
In addition, a limiting structure may be further disposed between the first guide rail 511 and the first connecting member 520 and between the first guide rail 511 and the second connecting member 530, so as to fix the first connecting member 520 or the second connecting member 530 after the first connecting member 520 or the second connecting member 530 moves to a predetermined position. For example, a plurality of bolt holes 512 may be provided in the first guide 511 along the first direction, and after the first connector 520 and the second connector 530 are moved in place, the first connector 520 may be fixed by bolts passing through the bolt holes 512 of the first connector 520 and the first guide 511, and the second connector 530 may be fixed by bolts passing through the bolt holes 512 of the second connector 530 and the first guide 511.
It can be appreciated that, after the turnover mechanism turns the battery cell 200, the dimension of the battery cell 200 along the first direction is different due to the large surface or the wide-high surface of the battery cell 200 facing the first annular light source 410. At this time, by moving the first ring light source 410 and the first image pickup mechanism 420, the distance between the first ring light source 410 and the battery cell 200 and the distance between the first ring light source 410 and the first image pickup mechanism 420 can be adjusted, so that the image photographed by the first image pickup mechanism 420 can clearly display the drawing profile. Or when the battery cells 200 with different sizes are placed on the mounting table 100, the first annular light source 410 and the first image capturing mechanism 420 can be driven to move along the first direction so as to adapt to image capturing of the battery cells 200 with different sizes.
As described above, the large surface of the battery cell 200 is provided with the thermal melting points, and in actual production, the large surface of the battery cell 200 is provided with a plurality of (e.g., 3) thermal melting points, so that when the battery cell 200 is placed on the mounting table 100, the length direction of the battery cell 200 is consistent with the second direction, that is, the three thermal melting points are aligned along the second direction. Based on this, the moving mechanism 500 may further include a third connection member 540 and a second guide rail 321 disposed on the connection frame 320, where the second guide rail 321 extends along the second direction. The fixing frame 510 may be mounted on the second guide rail 321 and may move along a second direction relative to the second guide rail 321, and since the first connecting piece 520 and the second connecting piece 530 are both mounted on the fixing frame 510, when the fixing frame 510 moves along the second direction, the first annular light source 410 and the first camera mechanism 420 may be driven to move along the second direction synchronously, so that the first annular light source 410 and the first camera mechanism 420 may be convenient to detect the wire drawing of the large surface of the battery cell 200 at different thermal melting points.
In addition, the moving mechanism 500 may further include driving devices for driving the first link 520, the second link 530, and the third link 540 to move, respectively, and each driving device may be, for example, a cylinder or a motor.
In some embodiments, referring to fig. 1 and 5, the image capturing assembly 400 may further include a second annular light source 430 and a second image capturing mechanism 440, and the battery cell 200, the second annular light source 430, the second image capturing mechanism 440, and the battery cell 200 may be sequentially arranged along the second direction, that is, the second annular light source 430 and the second image capturing mechanism 440 may be used to capture a wide-high surface of the battery cell 200. Specifically, the second annular light source 430 may emit a second light beam to a side surface of the battery cell 200 facing the second annular light source 430, the surface of the battery cell 200 reflects the second light beam after receiving the second light beam, the reflected second light beam is received by the second image capturing mechanism, and the second image capturing mechanism may also capture an image of the surface of the battery cell 200 used for reflecting the second light beam. It can be appreciated that when the battery cell 200 is placed on the mounting table 100, the first annular light source 410 and the first image capturing mechanism 420 cooperate to capture a large surface of the battery cell 200, the second annular light source 430 and the second image capturing mechanism 440 cooperate to capture a wide and high surface of the battery cell 200, and the first image capturing mechanism 420 and the second image capturing mechanism 440 can operate synchronously, so that the detection efficiency can be conveniently improved.
Specifically, the second annular light source 430 has a second through hole 431 in the middle, and one end of the second through hole 431 is opened towards the second camera mechanism 440, and the other end is opened towards the to-be-detected portion of the battery cell 200. When the second light emitted by the second annular light source 430 is reflected by the surface of the battery cell 200, the reflected second light can be received by the second image capturing mechanism 440 after passing through the second through hole 431. In this embodiment, by providing the second through hole 431, not only the reflected second light is convenient to pass, but also the reflected second light can be emitted toward the second image capturing mechanism 440 in a relatively concentrated manner, so that the second image capturing mechanism 440 can be ensured to receive more second light, and thus the definition of the image is ensured when the image of the portion to be detected of the battery cell 200 is obtained.
In this embodiment, the design of the space between the second annular light source 430 and the battery cell 200 and the space between the second image capturing mechanism 440 and the second annular light source 430 can refer to the parameter designs of the first annular light source 410 and the first image capturing mechanism 420, which will not be described herein.
In addition, when the first image capturing mechanism 420 and the second image capturing mechanism 440 are used to capture images of the battery cell 200 at the same time, after the image capturing of one large surface and one wide-high surface of the battery cell 200 is completed, the turnover mechanism only needs to turn the battery cell 200 once, so that the other large surface of the battery cell 200 is opposite to the first annular light source 410, and the other wide-high surface is opposite to the second annular light source 430, so that the image capturing of the other large surface and the other wide-high surface can be completed. Therefore, the detection efficiency can be further improved by arranging the two collar-shaped light sources and the image pickup mechanism.
It should be noted that, in the present embodiment, the first annular light source 410 and the second annular light source 430 may be an integrated annular structure as shown in fig. 3 and 5, and in other embodiments, the first annular light source 410 and the second annular light source 430 may also be an integrated square frame structure, or the first annular light source 410 and the second annular light source 430 may also be a split annular structure formed by a plurality of light sources encircling one circle, which is not limited in this embodiment.
In some embodiments, referring to fig. 6, the cell detection device may further include a conveying mechanism 700, where the conveying mechanism 700 is located on a side of the stage 100 facing away from the image acquisition assembly 400. In particular, the transfer mechanism 700 may include a transfer line 710, the transfer line 710 extending along a third direction that is perpendicular to the first direction and perpendicular to the second direction. The conveyor line 710 is provided with a plurality of inspection stations, each of which is arranged along the third direction and is adapted to be provided with a mounting table 100, i.e. each of which is adapted to be used for placing one of the electrical cells 200. The conveying line 710 may move along the third direction, so as to drive the carrying platform 100 to move along the third direction, and the relative position between the image capturing assembly 400 and the conveying line 710 is fixed along the third direction, so that when the conveying line 710 conveys the battery cells 200, the battery cells 200 sequentially pass through the image capturing assembly 400, and further sequentially complete the detection of the battery cells 200. In this embodiment, by providing the conveying mechanism 700, automatic detection of the battery cell 200 can be achieved, and further detection efficiency can be improved.
Further, referring to fig. 7 and 8, the transfer mechanism 700 may also be provided with a sorting station, and the cell detection device may also be provided with a sorting mechanism 600. Along the direction of movement of the conveyor line 700, the sorting station is located at the front of the image acquisition assembly 400. Illustratively, the sorting mechanism 600 may be disposed on a side of the connecting frame 320 away from the second guide rail 321, that is, the sorting mechanism 600 and the second guide rail 321 are disposed on opposite sides of the connecting frame 320, respectively, so that when the battery cell 200 is collected with an image at the image collecting assembly 400 and a wire drawing is detected, the battery cell 200 may be picked up by the sorting mechanism 600 and placed at a sorting station, so as to facilitate subsequent processing of the wire-drawn battery cell 200.
Based on the same inventive concept, the embodiment of the application also provides a battery cell detection method, which is based on the battery cell detection device in the embodiment of the application. The method for detecting the battery cell in the embodiment may include the following steps:
Step S100: placing the battery cell 200 with the surface coated with the coating on the carrying table 100, wherein the top of the battery cell 200 is abutted with the cover plate;
Step S200: acquiring an image of the surface of the current core 200 using the image acquisition assembly 400;
Step S300: the image acquired by the image acquisition assembly 400 is processed to detect whether the battery cell 200 is wire-drawn through the image.
In the step S300, when the drawing of the battery cell 200 is detected through the image, the corresponding battery cell 200 reports NG, and the step S300 may further include the following steps:
Step S301: detecting whether a hole is blasted on the battery core;
step S302: when the cell 200 is detected to have a hole, it is determined that the cell 200 has a foreign matter:
Step S303: detecting the source of the foreign matters and removing the foreign matters.
In the step S403, the source of the foreign matter may be at least one of wire drawing, tab adhesive bonding or dust.
In the above step S300, when no wire drawing of the battery cell 200 is detected through the image, the cover plate and the battery cell 200 are welded.
It should be noted that, in the above step S100, the film covered on the surface of the battery cell 200 placed on the mounting table 100 is fixed with the plastic frame on the top cover of the battery cell 200, and the next production process is to weld the cover plate with the housing of the battery cell 200.
In addition, after the NG of the wire-drawn battery cell 200 is detected, the wire-drawn battery cell 200 can be picked up, and the surface of the picked battery cell 200 is coated with the coating again, so that the waste of the battery cell 200 can be avoided.
When the battery cell detection device in the present embodiment is provided with the turnover mechanism and the image acquisition assembly 400 only includes the first annular light source 410 and the first image capturing mechanism 420, the battery cell detection method described above may utilize the turnover mechanism to turn over the battery cell 200 after completing step S200 on one surface of the battery cell 200, so that the other surface of the battery cell 200 is facing the first annular light source 410, and repeat step S200. Thus, by turning over the battery cell 200 three times, and repeating the step S200 after each time the battery cell 200 is turned over, the images of the respective surfaces of the battery cell 200 can be obtained. And then processing each image, and judging whether the battery cell 200 is wiredrawn or not.
When the battery cell detection device in the present embodiment is provided with the turnover mechanism and the image acquisition assembly 400 includes the first annular light source 410, the first image capturing mechanism 420, the second annular light source 430 and the second image capturing mechanism 440, when the battery cell 200 is detected, both surfaces of the battery cell 200 can complete the step S200 at the same time. Then, the battery cell 200 is turned over by using the turning mechanism, and the step S200 is repeated to complete the image acquisition of the other two surfaces of the battery cell 200, so that the images of the surfaces of the battery cell 200 can be obtained. And then processing each image, and judging whether the battery cell 200 is wiredrawn or not.
Because the large surface of the battery cell 200 is provided with three thermal melting points, and the wide-high surface is provided with one thermal melting point, when the large surface of the battery cell 200 is photographed, the first annular light source 410 and the first photographing mechanism 420 can be moved, and the first photographing structure photographs three times, so that images are respectively collected at the three thermal melting point positions of the large surface. And the thermal melting point on the wide and high surfaces is only needed to be shot once.
It will be apparent to those skilled in the art that various modifications and variations can be made to the embodiments of the present utility model without departing from the spirit and scope of the utility model. Thus, it is intended that the present utility model also include such modifications and alterations insofar as they come within the scope of the appended claims or the equivalents thereof.
Claims (10)
1. The battery cell detection device is characterized by comprising a carrying table and an image acquisition assembly, wherein the carrying table and the image acquisition assembly are arranged at intervals along a first direction;
The carrying table is used for placing a battery cell to be detected, and the part to be detected of the battery cell is arranged towards the image acquisition assembly;
The image acquisition assembly comprises a first annular light source and a first camera shooting mechanism, the first annular light source is positioned between the first camera shooting mechanism and the carrying platform, the battery cell, the first annular light source and the first camera shooting mechanism are sequentially arranged along the first direction;
The first annular light source is used for emitting first light rays to the surface of one side, facing the first annular light source, of the battery cell, the first camera mechanism is used for receiving the first light rays reflected by the battery cell, and shooting the battery cell to obtain an image of the surface, used for receiving the first light rays, of the battery cell;
The distance between the orthographic projection of the end, closest to the battery cell, of the first annular light source on a first plane and the orthographic projection of the part, to be detected, of the battery cell on the first plane is L, the shortest distance from the end, closest to the battery cell, of the first annular light source to the carrying table is H, H/L is less than or equal to tan30 degrees, and the first plane is a plane perpendicular to the first direction.
2. The cell inspection device according to claim 1, further comprising a turnover mechanism for turning over the cells placed on the stage so that the parts to be inspected, which are not inspected by the cells, are directed toward the first annular light source.
3. The cell detection device according to claim 1 or 2, wherein the image acquisition assembly further comprises a second annular light source and a second camera mechanism, the cells, the second annular light source and the second camera mechanism being arranged in sequence along a second direction, the second direction being perpendicular to the first direction;
The second annular light source is used for emitting second light rays to the surface of one side, facing the second annular light source, of the battery cell, the second camera shooting mechanism is used for receiving the second light rays reflected by the battery cell, and shooting the battery cell to obtain an image of the surface, used for receiving the second light rays, of the battery cell.
4. The cell detection device according to claim 3, wherein a first through hole is formed in the middle of the first annular light source, one end of the first through hole is opened towards the first image pickup mechanism, the other end of the first through hole is opened towards a part to be detected of the cell, and the first light reflected by the cell is received by the first image pickup mechanism after passing through the first through hole;
The middle part of the second annular light source is provided with a second through hole, one end opening of the second through hole faces the second camera mechanism, the other end opening of the second through hole faces the part to be detected of the battery cell, and the second light reflected by the battery cell passes through the second through hole and is received by the second camera mechanism.
5. The cell inspection device of claim 1, further comprising a movement mechanism for driving the first annular light source and the first camera mechanism, respectively, to move in the first direction.
6. The cell testing device of claim 5, wherein the movement mechanism comprises a first rail, a first connector, and a second connector;
The first guide rail extends along the first direction;
The first connecting piece can be slidably arranged on the first guide rail along the first direction relative to the first guide rail, and the first annular light source is fixed on the first connecting piece;
The second connecting piece can be installed on the first guide rail in a sliding mode along a second direction relative to the first guide rail, and the first camera shooting mechanism is fixed on the second connecting piece.
7. The device of claim 5, wherein the movement mechanism is further configured to drive the first annular light source and the first camera mechanism to move in a second direction, the second direction being perpendicular to the first direction.
8. The cell testing device of claim 7, wherein the movement mechanism comprises a second rail and a third connector;
the second guide rail extends along the second direction;
the third connecting piece can be installed on the second guide rail in a sliding mode along the second direction relative to the second guide rail, and the first annular light source and the first camera shooting mechanism are connected to the third connecting piece.
9. The cell detection device of claim 1, further comprising a transfer mechanism located on a side of the mounting table facing away from the image acquisition assembly;
The conveying mechanism extends along a third direction, the conveying mechanism is used for placing a plurality of carrying tables, the carrying tables are arranged along the third direction, and the third direction is perpendicular to the first direction;
The conveying mechanism can move along the third direction so as to drive each carrying platform to move along the third direction.
10. The device of claim 1, wherein a spacing between the first annular light source and the first camera mechanism is 200 ± 20mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322212138.5U CN221056344U (en) | 2023-08-16 | 2023-08-16 | Battery cell detection device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322212138.5U CN221056344U (en) | 2023-08-16 | 2023-08-16 | Battery cell detection device |
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| CN221056344U true CN221056344U (en) | 2024-05-31 |
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| CN202322212138.5U Active CN221056344U (en) | 2023-08-16 | 2023-08-16 | Battery cell detection device |
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| CN (1) | CN221056344U (en) |
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2023
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