Battery cell large-area detection mechanism, device and detection method thereof

Abstract

The invention discloses a battery cell large-area detection mechanism, a device thereof and a detection method. The battery cell large-area detection mechanism comprises a support, a first turnover driving assembly connected to the support, a second turnover driving assembly, a first supporting plate assembly controlled by the first turnover driving assembly, and a second supporting plate assembly controlled by the second turnover driving assembly, the first supporting plate assembly and the second supporting plate assembly are controlled to rotate in the same direction, and the first supporting plate and the second supporting plate are staggered in the rotating direction during rotation so as to support different positions of a to-be-detected battery cell. The first supporting plate and the second supporting plate are controlled in a time-sharing mode to support the to-be-detected battery cell, the surface images of the battery cell are shot twice, and finally a complete image is obtained in a splicing mode, in the shooting process, the battery cell is always in a horizontal state, complex actions such as overturning and clamping do not need to be executed on the battery cell, the borne pressure is small, and the surface damage risk is obviously reduced; the detection is fast and efficient.

Description

Technical Field

[0001] The present invention relates to the technical field of battery cell detection equipment, and in particular to a battery cell large-area detection mechanism and a device and a detection method thereof. Background Art

[0002] During the processing of power batteries, the surface of the battery cells needs to be inspected to ensure the quality of the battery cells. In the prior art, the surface inspection of the battery cells generally adopts the CCD visual inspection method, which uses the battery cell clamping mechanism to cooperate with the rotating mechanism to flip the different surfaces of the battery cells to the shooting position of the CCD camera, and then the CCD camera takes pictures separately, and finally identifies the surface defects through the software algorithm. However, this inspection mechanism has the following problems: the battery cell cannot withstand a large clamping force, the use of a clamping mechanism is prone to surface damage, and when the battery cell is controlled to flip, the flipping structure is complex and the movement amplitude is large, which will cause damage to the battery cell. Summary of the invention

[0003] The purpose of the present invention is to overcome the deficiencies of the prior art and to provide a large-area detection mechanism for battery cells and a device and a detection method thereof, so as to solve the technical problems that the existing battery cell detection mechanism is complicated and easily causes the risk of battery cell damage.

[0004] To achieve the above object, the present invention adopts the following technical solutions:

[0005] In a first aspect, an embodiment of the present invention provides a large-area detection mechanism for a battery cell, comprising:

[0006] A bracket, a first flip driving assembly and a second flip driving assembly connected to the bracket, a first support plate assembly controlled by the first flip driving assembly, a second support plate assembly controlled by the second flip driving assembly, and a second camera detection assembly connected to the bracket;

[0007] Among them, the first pallet assembly includes at least two first pallets arranged at intervals, the second pallet assembly includes at least two second pallets arranged at intervals, the first pallet assembly and the second pallet assembly are controlled to rotate in the same direction, and during rotation, the first pallet and the second pallet are staggered with each other in the rotation direction so as to support different positions of the battery cell to be tested.

[0008] Among them, the first driving assembly and the second driving assembly have the same structure, and the first driving assembly and the second driving assembly are mirror-set, the first driving assembly includes: a driving unit, a flip connecting rod connected to the driving end of the driving unit, and an upper limit member and a lower limit member for limiting the rotation angle of the flip connecting rod, the flip connecting rod is hinged to the bracket, and is fixedly connected to the first pallet assembly, the flip connecting rod is driven to rotate by the driving unit, and synchronously drives the first pallet assembly to switch from the first state to the second state within the limiting space of the upper limit member and the lower limit member.

[0009] The first state is a vertical state, and the second state is a horizontal state.

[0010] Among them, the first pallet assembly and the second pallet assembly have the same structure, and the first pallet assembly and the second pallet assembly are mirror-imaged, and the first pallet assembly includes: a flip axis, a connecting plate connected to the flip axis, and at least two first pallets connected to the connecting plate and spaced apart.

[0011] Wherein, at least two of the first support plates are arranged parallel to each other, and both the first support plate and the second support plate are made of transparent organic glass.

[0012] Wherein, at least two of the first supporting plates are arranged at equal intervals.

[0013] Wherein, the bracket is also provided with a second camera detection component, and the first camera detection component and the second camera detection component are respectively located above and below the first support plate component and the second support plate component.

[0014] Wherein, the first camera detection component and the second camera detection component both include: a detection camera and an auxiliary light source, the auxiliary light source is a bar light source, and the bar light source is arranged parallel to the length direction of the first support plate or the second support plate.

[0015] In the second aspect, an embodiment of the present invention further provides a large-area detection device for battery cells, comprising: a gantry, a loading mechanism slidably connected to the gantry, and a large-area detection mechanism for battery cells as described in any one of the above items, wherein the loading mechanism is used to transport the battery cells to be detected to the large-area detection mechanism for battery cells, and to remove the battery cells from the large-area detection mechanism after the battery cells have completed the detection.

[0016] In a third aspect, an embodiment of the present invention further provides a large-area detection method for a battery cell, which is performed by the large-area detection mechanism for a battery cell as described in any one of the above items, and comprises the following steps:

[0017] The first flip driving assembly drives the first pallet assembly to rotate to the first state, and the second flip driving assembly drives the second pallet assembly to rotate to the second state;

[0018] transporting the battery cell to be tested to the second support plate assembly;

[0019] Start the first camera detection component and the second camera detection component to respectively photograph the top surface and the bottom surface of the battery cell to be detected;

[0020] Control the first flip driving assembly to drive the first pallet assembly to rotate to the second state, and then control the second flip driving assembly to drive the second pallet assembly to rotate to the first state;

[0021] Start the second camera detection component to photograph the bottom surface of the battery cell to be detected again;

[0022] The images captured twice by the second camera detection component are spliced ​​to obtain a complete image of the bottom surface of the battery cell to be detected.

[0023] The large-area detection mechanism and device of the battery cell of the present invention, as well as the detection method, use the first pallet assembly and the second pallet assembly respectively controlled by the first flip drive assembly and the second flip drive assembly, and two groups of camera assemblies respectively located above and below the pallets to time-share control the first pallet and the second pallet to respectively support the battery cell to be detected, capture the surface image of the battery cell twice, and finally obtain a complete image by splicing. During the shooting process, the battery cell is always in a horizontal state, and there is no need to perform complex actions such as flipping the battery cell. The battery cell is in a supported state and does not need to be clamped, so the pressure it is subjected to is small, the risk of surface damage is significantly reduced, and the detection efficiency is higher.

[0024] The above description is only an overview of the technical solution of the present invention. In order to more clearly understand the technical means of the present invention, it can be implemented in accordance with the contents of the specification. In order to make the above and other purposes, features and advantages of the present invention more obvious and easy to understand, the following preferred embodiments are specifically cited and described in detail as follows. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 Schematic diagram of the overall structure of a large-area detection device for battery cells according to an embodiment of the present invention.

[0026] Figure 2 It is a schematic diagram of the axonometric structure of the large-area detection mechanism for a battery cell according to an embodiment of the present invention.

[0027] Figure 3 It is a front structural schematic diagram of a large-area detection mechanism for a battery cell according to an embodiment of the present invention.

[0028] Figure 4 It is a schematic diagram of the side structure of the large-area detection mechanism of the battery cell according to an embodiment of the present invention.

[0029] Figure 5 It is a top view of the large-area detection mechanism for a battery cell according to an embodiment of the present invention.

[0030] Figure 6 It is a partial structural schematic diagram of the first and second flip drive components and the first and second support plate components of the battery cell large-area detection mechanism according to an embodiment of the present invention.

[0031] Description of reference numerals:

[0032] Gantry 101, feeding mechanism 102, battery cell large-area detection mechanism 200, bracket 21, left side plate 211, right side plate 212, second camera detection assembly 22, detection camera 221, auxiliary light source 222, first camera detection assembly 23, connecting arm 231, detection camera 232, auxiliary light source 233, first flip drive assembly 24, drive unit 241, flip connecting rod 242, lower limit member 243, upper limit member 244, second flip drive assembly 25, first pallet assembly 26, flip shaft 261, connecting plate 262, first pallet 263, second pallet assembly 27, flip shaft 271, connecting plate 272, second pallet 273, battery cell 300. DETAILED DESCRIPTION

[0033] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0034] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present invention.

[0035] In the description of the present invention, it is to be understood that the terms “center”, “longitudinal”, “lateral”, “length”, “width”, “thickness”, “up”, “down”, “front”, “back”, “left”, “right”, “resin”, “horizontal”, “top”, “bottom”, “inside”, “outside”, “clockwise”, “counterclockwise”, etc., indicating orientations or positional relationships are orientations or positional relationships based on the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0036] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0037] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be connected, detachably connected, or integrated; it can be mechanically connected or electrically connected; it can be directly connected or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0038] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0039] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms should not be understood as necessarily referring to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0040] See also Figures 1 to 6 This embodiment discloses a large-area detection device for battery cells, which includes: a gantry 101, a feeding mechanism 102 slidably connected to the gantry 101, and a large-area detection mechanism 200 for detecting the surface of the battery cells. The feeding mechanism 102 is used to grab the battery cells processed in the previous station and transfer them to the detection station of the large-area detection mechanism 200 of the battery cells. After the detection is completed, the battery cells are taken out from the detection station again and transferred to the next station for the next processing.

[0041] like Figures 2 to 6 As shown, the battery cell large area detection mechanism 200 includes:

[0042] A bracket 21, a first flip driving assembly 24 and a second flip driving assembly 25 connected to the bracket 21, a first pallet assembly 26 controlled by the first flip driving assembly 24, a second pallet assembly 27 controlled by the second flip driving assembly 25, and a second camera detection assembly 22 connected to the bracket 21. The first flip driving assembly 24 drives the first pallet assembly 26 to rotate, the second flip driving assembly 25 is used to drive the second pallet 27 to rotate, the first pallet assembly 26 and the second pallet assembly 27 support the battery cell 300 to be detected in a time-sharing manner, and the second camera detection assembly 22 is used to photograph the bottom of the battery cell 300.

[0043] Among them, the first pallet assembly 26 includes at least two first pallets 263 arranged at intervals, and the second pallet assembly 27 includes at least two second pallets 273 arranged at intervals. The first pallet assembly 26 and the second pallet assembly 27 are controlled to rotate in the same direction, and during rotation, the first pallet 263 and the second pallet 273 are staggered with each other in the rotation direction to support different positions of the battery cell 300 to be tested.

[0044] In this embodiment, the first tray 263 and the second tray 273 are controlled to rotate along the vertical direction, and the lengths of the first tray 263 and the second tray 273 are approximately the same. At least more than half of the length of the first tray 263 is embedded in the gap between the adjacent second trays 273, so that when the first tray 263 or the second tray 273 alone supports the battery cell 300 to be tested, both can independently and stably support the battery cell 300.

[0045] In this embodiment, the first pallet assembly 26 and the second pallet assembly 27 are controlled to rotate separately, so that during one inspection process, the surface of the battery cell is supported by only one group of the pallet assemblies, and the other group of the pallet assemblies is suspended. When inspecting the battery cells, it is only necessary to switch the first pallet assembly 26 supporting the battery cell to the second pallet assembly 27 supporting the battery cell. The visual inspection camera assembly and the battery cell maintain a relatively fixed position and angle, reducing the flipping of the battery cell and other actions, avoiding damage to the surface of the battery cell, and also reducing the action time of each mechanism, thereby improving the inspection efficiency.

[0046] Please refer again Figure 2 and Figure 4The first flip drive assembly 24 and the second flip drive assembly 25 have the same structure, and the first flip drive assembly 24 and the second flip drive assembly 25 are mirror-imaged. Taking the first flip drive assembly 24 as an example, the first flip drive assembly 24 includes: a driving unit 241, a flip link 242 connected to the driving end of the driving unit 241, and an upper limit member 244 and a lower limit member 243 for limiting the rotation angle of the flip link 242. The flip link 242 is hinged to the bracket 21 and fixedly connected to the flip shaft 261 of the first support plate assembly 26. The driving unit 241 drives the flip link 242 to rotate, and synchronously drives the first support plate assembly 26 to switch from the first state to the second state within the limiting space of the upper limit member 244 and the lower limit member 243.

[0047] The driving unit 241 is a driving cylinder or an electric cylinder, etc. The flip link 242 is a rotating arm having two rotating arms arranged at an angle and a rotating shaft connected to the middle of the rotating arm. The rotating shaft is connected to the first support plate assembly 26. The rotating shaft is the rotation support point of the flip link 242. When the driving end of the driving unit 241 is extended, the flip link 242 rotates a certain angle with the rotating fulcrum, and synchronously drives the first support plate assembly 26 to flip and realize the switching between the first state and the second state. On the contrary, the cylinder retracts, and reversely drives the first support plate assembly 26 to switch from the second state to the first state.

[0048] In this embodiment, the bracket 21 includes a left plate 211 and a right plate 212 that are relatively vertically distributed. The first flip drive assembly 24 and the second flip drive assembly 25 are both connected to the left plate 211, and the first pallet assembly 24 and the second pallet assembly 25 are arranged at the same height.

[0049] In this embodiment, the first state is a vertical state, and the second state is a horizontal state. In the first state, the support plate is in a suspended state, and in the second state, the support plate is in a horizontal state for supporting the battery cell. Since the battery cell is horizontally placed on the support plate in the second state, the support plate will not generate clamping force on the battery cell, thereby reducing damage to the battery cell.

[0050] Please refer again Figure 6 The first support plate assembly 26 and the second support plate assembly 27 have the same structure, and the first support plate assembly 26 and the second support plate assembly 27 are arranged in a mirror image. Taking the first support plate assembly 26 as an example, the first support plate assembly 26 includes: a flip shaft 261, a connecting plate 262 connected to the flip shaft 261, and at least two first support plates 263 connected to the connecting plate 262 and arranged at intervals. The length direction of the first support plate 263 is substantially perpendicular to the flip shaft 261, and the rotation of the flip shaft 261 synchronously drives the first support plate 263 to flip.

[0051] Similarly, the second support plate assembly 27 also includes: a turning shaft 271 , a connecting plate 272 connected to the turning shaft 271 , and at least two second support plates 273 connected to the connecting plate 272 .

[0052] In this embodiment, the first support plate 263 and the second support plate 273 have substantially the same structure, at least two of the first support plates 263 are arranged parallel to each other, the second support plates 273 are also arranged parallel to each other, and both the first support plate 263 and the second support plate 273 are made of transparent organic glass.

[0053] In order to simplify the processing of the first support plate 263 and the second support plate 273 , at least two of the first support plates 263 and the second support plates 273 are arranged at equal intervals.

[0054] like Figure 6 As shown, when the first support plate 263 is controlled to rotate, the first support plate 263 just passes through the interval between the adjacent second support plates 273. On the one hand, the first support plate 263 or the second support plate 273 can lift the battery cell 300 independently, and on the other hand, the first support plate 263 and the second support plate 273 are respectively supported at different positions on the surface of the battery cell 300, and there is no overlapping area between the two supporting positions of the battery cell 300, so that the camera detection component can respectively take high-definition images of different areas, so as to accurately determine and identify defects on the surface of the battery cell.

[0055] It should be noted that the first tray assembly 26 and the second tray assembly 27 disclosed in the above embodiment are not limited to the above structure. They only need to be able to support the battery cells separately and without overlapping areas on the supporting surfaces of the battery cells. Therefore, the first tray 263 and the second tray 273 can be any other shapes or structures that can cooperate with each other.

[0056] like Figure 2 and Figure 3 As shown, the bracket 21 is also provided with a first camera detection component 23, and the first camera detection component 23 and the second camera detection component 22 are respectively located above and below the first support plate component 26 and the second support plate component 27. That is, the battery cell 300 to be detected is placed on the first support plate component 26 or the second support plate component 27, and the first camera detection component 23 and the second camera detection component 22 respectively photograph the top surface and the bottom surface of the battery cell 300.

[0057] Specifically, the first camera detection assembly 23 includes: a detection camera 232 and an auxiliary light source 233, wherein the auxiliary light source 233 is a bar light source, and the bar light source is arranged parallel to the length direction of the first support plate 263, and two bar light sources are provided and located above the first support plate assembly 26, for illuminating the top surface of the battery cell 300. The detection camera 232 is also fixedly connected to the bracket 21 through a connecting arm 231.

[0058] Similarly, the second camera detection assembly 22 includes: a detection camera 221 and an auxiliary light source 222. The detection camera 221 is used to photograph the bottom of the battery cell 300, and the auxiliary light source 222 is used to illuminate the bottom of the battery cell 300 so as to obtain a high-definition image. The auxiliary light source 222 is a bar light source, and the bar light source is located below the first support plate assembly 26 and the second support plate assembly 27.

[0059] The embodiment of the present invention further provides a large-area detection method for a battery cell, which is performed by the large-area detection mechanism 200 for a battery cell as described in any one of the above items, and includes the following steps:

[0060] In the first step, the first flipping drive assembly 24 drives the first pallet assembly 26 to rotate to the first state, and the second flipping drive assembly 25 drives the second pallet assembly 27 to rotate to the second state; it should be noted that the flipping states of the first pallet assembly 26 and the second pallet assembly 27 are interchangeable during a specific detection process.

[0061] In the second step, the battery cell 300 to be tested is transported to the second support plate 273 of the second support plate assembly 27 through the loading mechanism 102 ; since the second support plate 273 is in a horizontal state at this time, the battery cell 300 is placed on the second support plate 273 .

[0062] Step 3: Start the first camera detection component 23 and the second camera detection component 22 to respectively photograph the top surface and the bottom surface of the battery cell 300 to be detected to obtain the top surface and the first bottom surface images; of course, according to the ambient brightness, the auxiliary light source is also turned on synchronously.

[0063] Step 4: Control the first flip driving assembly 24 to drive the first support plate assembly 26 to rotate to the second state, and then control the second flip driving assembly 25 to drive the second support plate assembly 27 to rotate to the first state, that is, the initial first support plate 263 supporting the battery cell is switched to the second support plate 273 supporting the battery cell;

[0064] Step 5: Start the second camera detection component 22 to photograph the bottom surface of the battery cell 300 to be detected again to obtain a second bottom surface image;

[0065] Step 6: stitch the images captured twice by the second camera detection component 22 to obtain a complete image of the bottom surface of the battery cell to be inspected. That is, stitch the first bottom image and the second bottom image by a computer to finally obtain a cleaned complete bottom surface image of the battery cell, and finally perform surface defect recognition and judgment based on the complete image.

[0066] It should be noted that the large-area battery cell detection mechanism and its device and detection method of the above-mentioned embodiment are not only used for detecting battery cells, but can also be used for visual detection of any other large-area workpiece surface. The detection mechanism and its method not only have a simple and reliable hardware structure, but also have higher detection efficiency.

[0067] The large-area detection mechanism and device of the battery cell of the present embodiment, as well as the detection method thereof, use the first pallet assembly and the second pallet assembly respectively controlled by the first flip drive assembly and the second flip drive assembly, and two groups of camera detection assemblies respectively located above and below the pallets to time-share control the first pallet and the second pallet to respectively support the battery cell to be detected, capture the surface image of the battery cell twice, and finally obtain a complete image by splicing. During the shooting process, the battery cell is always in a horizontal state, and there is no need to perform complex actions such as flipping the battery cell. The battery cell is in a supported state and does not need to be clamped, the pressure on it is small, the risk of surface damage is significantly reduced, and the detection efficiency is higher.

[0068] The above examples are only used to further illustrate the technical content of the present invention, so that readers can understand it more easily, but they do not mean that the implementation of the present invention is limited to this. Any technical extension or re-creation made according to the present invention is protected by the present invention. The protection scope of the present invention shall be subject to the claims.

Claims

1. A large-area detection mechanism for battery cells, characterized in that: include: A bracket, a first flip driving assembly and a second flip driving assembly connected to the bracket, a first support plate assembly controlled by the first flip driving assembly, a second support plate assembly controlled by the second flip driving assembly, and a second camera detection assembly connected to the bracket; Among them, the first pallet assembly includes at least two first pallets arranged at intervals, the second pallet assembly includes at least two second pallets arranged at intervals, the first pallet assembly and the second pallet assembly are controlled to rotate in the same direction, and during rotation, the first pallet and the second pallet are staggered with each other in the rotation direction so as to support different positions of the battery cell to be tested.

2. The large-area detection mechanism for battery cells according to claim 1, characterized in that: The first drive assembly and the second drive assembly have the same structure, and the first drive assembly and the second drive assembly are mirror-imaged on the bracket. The first drive assembly includes: a driving unit, a flip link connected to the driving end of the driving unit, and an upper limit member and a lower limit member for limiting the rotation angle of the flip link. The flip link is hinged to the bracket and fixedly connected to the first support plate assembly. The flip link is driven to rotate by the driving unit, and the first support plate assembly is synchronously driven to switch between the first state and the second state within the limiting space of the upper limit member and the lower limit member.

3. The large-area detection mechanism for battery cells according to claim 2, characterized in that: The first state is a vertical state, and the second state is a horizontal state.

4. The large-area detection mechanism for battery cells according to claim 3, characterized in that: The first pallet assembly and the second pallet assembly have the same structure, and the first pallet assembly and the second pallet assembly are mirror-imaged. The first pallet assembly includes: a flip axis, a connecting plate connected to the flip axis, and at least two first pallets connected to the connecting plate and spaced apart.

5. The large-area detection mechanism for battery cells according to claim 4, characterized in that: At least two of the first support plates are arranged parallel to each other, and at least two of the second support plates are arranged parallel to each other, and both the first support plates and the second support plates are made of transparent organic glass.

6. The large-area detection mechanism for battery cells according to claim 5, characterized in that: At least two of the first supporting plates are arranged at equal intervals, and at least two of the second supporting plates are arranged at equal intervals.

7. The large-area detection mechanism for battery cells according to any one of claims 1 to 6, characterized in that: The bracket is also provided with a first camera detection component, and the first camera detection component and the second camera detection component are respectively located above and below the first support plate component and the second support plate component.

8. The large-area detection mechanism for battery cells according to claim 7, characterized in that: The first camera detection component and the second camera detection component both include: a detection camera and an auxiliary light source, the auxiliary light source is a bar light source, and the bar light source is arranged parallel to the length direction of the first support plate or the second support plate.

9. A large-area detection device for battery cells, characterized in that: include: A gantry, a loading mechanism slidably connected to the gantry, and a large-area detection mechanism for battery cells as described in any one of claims 1 to 8, wherein the loading mechanism is used to transport the battery cells to be detected to the large-area detection mechanism for battery cells, and to remove the battery cells from the large-area detection mechanism after the detection is completed.

10. A method for detecting a large area of ​​a battery cell, the method being performed by the large area detection mechanism for a battery cell as claimed in any one of claims 1 to 8, characterized in that: The following steps are involved: Control the first flip driving assembly to drive the first pallet assembly to rotate to the first state, and control the second flip driving assembly to drive the second pallet assembly to rotate to the second state; transporting the battery cell to be tested to the second support plate assembly; Start the first camera detection component and the second camera detection component to respectively photograph the top surface and the bottom surface of the battery cell to be detected; Control the first flip driving assembly to drive the first pallet assembly to rotate to the second state, and then control the second flip driving assembly to drive the second pallet assembly to rotate to the first state; Start the second camera detection component to photograph the bottom surface of the battery cell to be detected again; The images captured twice by the second camera detection component are spliced ​​to obtain a complete image of the bottom surface of the battery cell to be detected.

Images