Detection device and battery production system

Abstract

The utility model discloses a detection device and a battery production system. The detection device comprises a mounting rack; the first light source assembly is arranged on the mounting frame, and the first light source assembly is used for irradiating the full circumferential edge of the battery piece; the second light source assembly is arranged on the mounting frame, the second light source assembly is used for being arranged on one side of the battery piece in the thickness direction of the battery piece, and the second light source assembly is used for irradiating the battery piece in the thickness direction of the battery piece; the battery piece is located in the irradiation range of the second light source assembly. And the imaging piece is arranged on the mounting frame, and the imaging piece is used for photographing and imaging the battery piece which is jointly irradiated by the first light source assembly and the second light source assembly. The accuracy of the gray value of the image imaged by the camera can be improved.

Description

Technical Field

[0001] The present application relates to the technical field of battery production, and in particular to a detection device and a battery production system. Background Art

[0002] During the production process of the passivated contact cell line, SE laser heavy doping process is required. After the process is completed, the cells need to be sent into the basket one by one. Before the cells are sent into the basket, they need to be inspected one by one by a detection device to see if they are unqualified cells with problems such as broken edges and broken pieces. In the related technology, the gray value of the image captured by the camera is generally detected to determine whether the cell has problems such as broken edges and broken pieces.

[0003] However, in the related art, due to the inaccurate grayscale value of the image captured by the camera, two types of misjudgment situations may occur. In one misjudgment situation, qualified cells may be misjudged as having broken edges or fragments, which may result in the removal of qualified cells, resulting in an increase in cost. In another situation, unqualified cells with broken edges or fragments may be misjudged as qualified cells, which may result in the unqualified cells being sent to the basket, affecting the yield rate of the cells. In particular, for cells with broken fragments, the presence of the fragments may cause the cells to scatter during transportation, and then be blocked at the mouth of the basket. In this way, qualified cells may collide with the cells blocked at the mouth of the basket, resulting in problems such as broken edges and fragments, which may result in an increase in the unqualified rate of cells and costs. Utility Model Content

[0004] In view of the above-mentioned deficiencies in the related art, the present application provides a detection device and a battery production system to solve the problem of inaccurate grayscale values ​​of images imaged by a camera in the related art.

[0005] In order to solve the above technical problems, in a first aspect, the present application provides a detection device, which includes:

[0006] Mounting frame;

[0007] A first light source assembly, the first light source assembly is arranged on the mounting frame, and the first light source assembly is used to illuminate the entire circumferential edge of the battery sheet;

[0008] a second light source assembly, the second light source assembly being arranged on the mounting frame, the second light source assembly being arranged on one side of the battery cell along the thickness direction of the battery cell, and the second light source assembly being arranged to illuminate the battery cell along the thickness direction of the battery cell, so that the battery cell is located within the irradiation range of the second light source assembly;

[0009] An imaging component is disposed on the mounting frame and is used to take a photo of the battery cell illuminated by the first light source assembly and the second light source assembly.

[0010] In a possible implementation of the first aspect, the first light source assembly includes an annular light source, which is arranged to correspond to the full circumferential edge of the battery cell, and the annular light source is used to illuminate the full circumferential edge of the battery cell.

[0011] In a possible implementation of the first aspect, the first light source assembly further includes an annular frame having the same shape as the annular light source, the annular frame is disposed on the mounting frame, the annular frame and the annular light source are disposed on the same central axis, and the annular light source is disposed on the annular frame.

[0012] In a possible implementation manner of the first aspect, the annular light source is disposed on an inner side of the annular frame.

[0013] In a possible implementation manner of the first aspect, the annular light source is in a square ring shape.

[0014] In a possible implementation manner of the first aspect, the second light source assembly includes a planar light source, and the planar light source is used to illuminate the battery cell along a thickness direction of the battery cell.

[0015] In a possible implementation of the first aspect, the second light source assembly further includes a second light source mounting member, and the planar light source is disposed on the second light source mounting member;

[0016] The mounting frame includes a second light source mounting bracket for mounting the second light source assembly, the second light source mounting bracket includes a support member, the support member and the second light source mounting member are connected by a first bolt, one of the support member and the second light source mounting member is provided with a first oblong hole for the first bolt to pass through, and the other is provided with a threaded hole for threaded cooperation with the first bolt, and the length direction of the first oblong hole extends in a direction perpendicular to the conveying direction of the battery cell.

[0017] In a possible implementation of the first aspect, the mounting frame also includes a mounting frame body for fixing to a base surface, the mounting frame body includes a fixing member connected to the base surface via a second bolt, the fixing member is provided with a second oblong hole for the second bolt to pass through, and the length direction of the second oblong hole extends along the conveying direction of the battery cell.

[0018] In a possible implementation of the first aspect, the mounting frame further includes a mounting frame body and an imaging component mounting assembly, and the imaging component mounting assembly includes an imaging component bracket and a reinforcement member;

[0019] The imaging component bracket includes a first section and a second section arranged in an L shape, one end of the first section is connected to one end of the second section, the other end of the first section is equipped with the imaging component, and the end of the second section away from the first section is connected to the mounting frame body; the reinforcement member is connected between the first section and the second section.

[0020] In a second aspect, the present application also provides a battery production system, the battery production system comprising:

[0021] The detection device described in any one of the first aspects.

[0022] Compared with the related art, this application has at least the following beneficial effects:

[0023] In the present application, since the first light source component in the detection device is used to illuminate the full circumferential edge of the battery cell, and since the second light source component in the detection device is arranged on one side of the battery cell along the thickness direction of the battery cell, and the second light source component is used to illuminate the battery cell along the thickness direction of the battery cell, so that the battery cell is located within the irradiation range of the second light source component. Therefore, in the present application, when the first light source component and the second light source component cooperate to illuminate the battery cell, the irradiation of the full circumferential edge of the battery cell by the first light source component and the irradiation of the battery cell within its irradiation range along the thickness direction of the battery cell by the second light source component are conducive to uniformly irradiating the battery cell, so that not only the full circumferential edge of the battery cell can be illuminated more clearly, which is conducive to judging whether there is a problem of edge collapse on the battery cell, but also if there is a problem of edge collapse or broken pieces on the battery cell, the irradiated light can also pass through the collapsed edge and broken pieces on the battery cell along the thickness direction of the battery cell, which is conducive to judging whether there is a problem of edge collapse or broken pieces on the battery cell.

[0024] According to the above, when the first light source assembly and the second light source assembly cooperate to jointly illuminate the battery cell, by uniformly illuminating the battery cell, it is helpful to make the defects such as broken edges and broken pieces on the battery cell more obvious. In this way, after the imaging component takes a picture and images the battery cell jointly illuminated by the first light source assembly and the second light source assembly, it is helpful to improve the accuracy of the grayscale value of the image obtained by imaging, and then it is helpful to make the grayscale value of the image obtained accurately reflect the defects such as broken edges and broken pieces on the battery cell. This is not only helpful to avoid misjudging qualified battery cells as unqualified battery cells, and help avoid qualified battery cells from being removed, and then it is helpful to reduce costs, but also to avoid misjudging unqualified battery cells as qualified battery cells, and help avoid qualified battery cells from colliding with unqualified battery cells blocked at the mouth of the flower basket and having problems such as broken edges and broken pieces, and then it is helpful to reduce the unqualified rate and cost of battery cells. As the unqualified rate of battery cells decreases, it is helpful to improve the normal operating time of the battery production system, and then it is helpful to improve the utilization rate of the battery production system. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0026] Figure 1 A schematic diagram of the structure of a detection device provided in an embodiment of the present application;

[0027] Figure 2 A schematic diagram of the structure of a detection device from another perspective provided in an embodiment of the present application;

[0028] Figure 3 A schematic diagram of the structure of the support member provided in the embodiment of the present application;

[0029] Figure 4 A schematic diagram of the structure of a fixing member provided in an embodiment of the present application;

[0030] Figure 5 A schematic diagram of a battery production system provided in an embodiment of the present application.

[0031] Description of reference numerals:

[0032] 1-Mounting frame;

[0033] 11-second light source mounting bracket; 111-supporting member; 1111-first oblong hole; 112-connecting member;

[0034] 12-mounting frame body; 121-fixing member; 1211-second oblong hole;

[0035] 13-imaging component mounting assembly; 131-imaging component bracket; 1311-first section; 1312-second section; 132-reinforcement member;

[0036] 2-first light source assembly; 21-annular light source; 22-annular frame;

[0037] 3-second light source assembly; 31-planar light source; 32-second light source mounting member;

[0038] 4- imaging element;

[0039] 100-Detection device. DETAILED DESCRIPTION

[0040] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0041] In the present application, the terms "upper", "lower", "left", "right", "front", "back", "top", "bottom", "inner", "outer", "vertical", "horizontal", "lateral", "longitudinal" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings. These terms are mainly used to better describe the present application and its embodiments, and are not used to limit the indicated devices, elements or components to have a specific orientation, or to be constructed and operated in a specific orientation.

[0042] In addition, some of the above terms may be used to express other meanings in addition to indicating orientation or positional relationship. For example, the term "on" may also be used to express a certain dependency or connection relationship in some cases. For those of ordinary skill in the art, the specific meanings of these terms in this application can be understood according to specific circumstances.

[0043] In addition, the terms "installed", "set", "provided with", "connected", and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection, or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be an internal connection between two devices, elements, or components. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0044] In addition, the terms "first", "second", etc. are mainly used to distinguish different devices, elements or components (the specific types and structures may be the same or different), and are not used to indicate or imply the relative importance and quantity of the indicated devices, elements or components. Unless otherwise specified, "plurality" means two or more.

[0045] As described in the background technology of this application, the SE laser heavy doping process is required for the passivated contact cell during the production process of the assembly line. After the process is completed, the cells need to be sent to the basket one by one. Before the cells are sent to the basket, they need to be tested one by one by a detection device to see if they are unqualified cells with problems such as edge collapse and broken pieces. In the related art, the gray value of the image captured by the camera is generally detected to determine whether the cell has problems such as edge collapse and broken pieces.

[0046] However, in the related art, due to the inaccurate grayscale value of the image captured by the camera, two types of misjudgment situations may occur. In one misjudgment situation, qualified cells may be misjudged as having broken edges or fragments, which may result in the removal of qualified cells, resulting in an increase in cost. In another situation, unqualified cells with broken edges or fragments may be misjudged as qualified cells, which may result in the unqualified cells being sent to the basket, affecting the yield rate of the cells. In particular, for cells with broken fragments, the presence of the fragments may cause the cells to scatter during transportation, and then be blocked at the mouth of the basket. In this way, qualified cells may collide with the cells blocked at the mouth of the basket, resulting in problems such as broken edges and fragments, which may result in an increase in the unqualified rate of cells and costs.

[0047] Embodiment 1

[0048] In view of the above-mentioned problems, the present application provides a detection device to solve the problem of inaccurate grayscale values ​​of images imaged by a camera in the related art.

[0049] The technical solution of the present application will be further described below in conjunction with specific embodiments and drawings:

[0050] like Figure 1 and Figure 2 As shown, the detection device 100 includes a mounting frame 1, a first light source assembly 2, a second light source assembly 3 and an imaging element 4. The first light source assembly 2 is arranged on the mounting frame 1, and the first light source assembly 2 is used to illuminate the full circumferential edge of the battery sheet. The second light source assembly 3 is arranged on the mounting frame 1, and the second light source assembly 3 is used to illuminate the entire circumferential edge of the battery sheet along the thickness direction ( Figure 1 The first light source assembly 2 and the second light source assembly 3 are arranged on one side of the cell sheet, and the second light source assembly 3 is used to illuminate the cell sheet along the thickness direction of the cell sheet, so that the cell sheet is located within the illumination range of the second light source assembly 3. The imaging member 4 is arranged on the mounting frame 1, and the imaging member 4 is used to take pictures and images of the cell sheet illuminated by the first light source assembly 2 and the second light source assembly 3.

[0051] In the present application, since the first light source assembly 2 in the detection device 100 is used to illuminate the full circumferential edge of the battery cell, and since the second light source assembly 3 in the detection device 100 is arranged on one side of the battery cell along the thickness direction of the battery cell, and the second light source assembly 3 is used to illuminate the battery cell along the thickness direction of the battery cell, so that the battery cell is located within the irradiation range of the second light source assembly 3. Therefore, in the present application, when the first light source assembly 2 and the second light source assembly 3 cooperate to jointly illuminate the battery cell, the irradiation of the full circumferential edge of the battery cell by the first light source assembly 2 and the irradiation of the battery cell within its irradiation range along the thickness direction of the battery cell by the second light source assembly 3 are conducive to uniformly irradiating the battery cell, so that not only the full circumferential edge of the battery cell can be illuminated more clearly, which is conducive to judging whether there is a chipping problem on the battery cell, but also if there is a chipping problem or a broken piece on the battery cell, the irradiated light can also pass through the chipping problem or a broken piece on the battery cell along the thickness direction of the battery cell, which is conducive to judging whether there is a chipping problem or a broken piece on the battery cell.

[0052] According to the above, when the first light source component 2 and the second light source component 3 cooperate to jointly illuminate the battery cell, by uniformly illuminating the battery cell, it is helpful to make the defects such as broken edges and broken pieces on the battery cell more obvious. In this way, after the imaging component 4 takes a picture and images the battery cell jointly illuminated by the first light source component 2 and the second light source component 3, it is helpful to improve the accuracy of the grayscale value of the image obtained by imaging, and then it is helpful to make the grayscale value of the image obtained accurately reflect the defects such as broken edges and broken pieces on the battery cell. This is not only helpful to avoid misjudging qualified battery cells as unqualified battery cells, and help avoid qualified battery cells from being removed, and then it is helpful to reduce costs, but also to avoid misjudging unqualified battery cells as qualified battery cells, and help avoid qualified battery cells from colliding with unqualified battery cells blocked at the mouth of the flower basket and having problems such as broken edges and broken pieces, and then it is helpful to reduce the unqualified rate and cost of battery cells. As the unqualified rate of battery cells decreases, it is helpful to improve the normal operating time of the battery production system, and then it is helpful to improve the utilization rate of the battery production system.

[0053] It should be noted that since the first light source component 2 is used to illuminate the entire circumferential edge of the battery cell, the illumination by the first light source component 2 can illuminate the entire circumferential edge of the battery cell more clearly, and since the second light source component 3 is used to illuminate the battery cell along the thickness direction of the battery cell so that the battery cell is within the illumination range of the second light source component 3, the irradiated light can also penetrate the broken edges and fragments on the battery cell along the thickness direction of the battery cell through the illumination by the second light source component 3.

[0054] Regarding the imaging component 4, in the embodiment of the present application, the imaging component 4 can be a camera, a mobile phone, a video camera, a surveillance camera, etc. The type of the imaging component 4 is relatively flexible. Specifically, it can be selected according to actual usage requirements, and the embodiment of the present application will not be elaborated on this.

[0055] Regarding the position between the battery sheet and the first light source assembly 2 and the second light source assembly 3, in a preferred embodiment, as Figure 1 and Figure 2 As shown, the first light source assembly 2 and the second light source assembly 3 are arranged at intervals in the thickness direction of the cell sheet, and the cell sheet is arranged between the first light source assembly 2 and the second light source assembly 3, that is, in the thickness direction of the cell sheet, the first light source assembly 2 and the second light source assembly 3 are arranged on both sides of the cell sheet. Such an arrangement is conducive to avoiding interference between the first light source assembly 2 and the second light source assembly 3, and further conducive to ensuring uniform irradiation of the cell sheet by the first light source assembly 2 and the second light source assembly 3 to a certain extent.

[0056] In other embodiments, the first light source assembly 2 and the second light source assembly 3 may also be arranged on the same side of the cell in the thickness direction of the cell. The first light source assembly 2 and the second light source assembly 3 are arranged on the same side of the cell, so that the side of the cell away from the first light source assembly 2 and the second light source assembly 3 is prevented from being occupied by the first light source assembly 2 and the second light source assembly 3, and thus, to a certain extent, it is convenient to perform operations on the side of the cell away from the first light source assembly 2 and the second light source assembly 3.

[0057] For the first light source assembly 2, further, in a preferred embodiment, as Figure 1 and Figure 2 As shown, the first light source assembly 2 includes an annular light source 21, which is arranged corresponding to the entire circumferential edge of the battery cell, and is used to illuminate the entire circumferential edge of the battery cell.

[0058] Since the ring light source can provide uniform light distribution, each part of the illuminated object can be evenly illuminated to avoid uneven brightness. Therefore, the first light source assembly 2 can more evenly illuminate the entire circumferential edge of the battery cell through the ring light source, which is beneficial to further improve the accuracy of the grayscale value.

[0059] In other embodiments, the first light source assembly 2 may include a plurality of light sources, each of which is distributed around the battery cell, that is, each light source is arranged corresponding to the full circumferential edge of the battery cell, so that each light source can illuminate the full circumferential edge of the battery cell. Alternatively, the first light source assembly 2 may also include a light source that can emit annular light, so that the light source can illuminate the full circumferential edge of the battery cell through the emitted annular light. As can be seen from the above description, the setting of the first light source assembly 2 is relatively flexible, and specifically, it can be set according to actual usage requirements, and the embodiments of the present application will not be elaborated on this in detail.

[0060] Further, in a preferred embodiment, Figure 1 and Figure 2 As shown, the first light source assembly 2 also includes an annular frame 22 of the same shape as the annular light source 21 . The annular frame 22 is disposed on the mounting frame 1 . The annular frame 22 and the annular light source 21 are disposed on the same central axis, and the annular light source 21 is disposed on the annular frame 22 .

[0061] In this way, the annular light source 21 is installed through the annular frame 22, which not only can enhance the reliability of the installation of the annular light source 21, but also can enhance the stability of the annular light source 21 installed on the mounting frame 1 because the annular frame 22 is arranged on the mounting frame 1.

[0062] In other embodiments, the first light source assembly 2 includes at least two clamping jaws disposed on the mounting frame 1, the two clamping jaws are disposed at opposite sides of the annular light source 21 at intervals, and the two clamping jaws are used to clamp the annular light source 21, so that the annular light source 21 can be installed on the mounting frame 1 through the two clamping jaws. Such an arrangement is conducive to reducing the weight of the first light source assembly 2 to a certain extent, and is conducive to facilitating the installation and transportation of the first light source assembly 2.

[0063] Further, in a preferred embodiment, Figure 1 and Figure 2 As shown, the annular light source 21 is arranged on the inner side of the annular frame 22 .

[0064] In this way, on the one hand, in the extension direction of the central axis of the annular light source 21 and the annular frame 22 ( Figure 1 In the Z direction), the space occupied by the annular light source 21 and the annular frame 22 can be reduced, which is conducive to facilitating the arrangement of the annular light source 21 and the annular frame 22; on the other hand, the annular frame 22 can also provide a certain degree of protection for the annular light source 21 located inside thereof, which is conducive to avoiding damage to the annular light source 21.

[0065] In other embodiments, the annular light source 21 is located on one side of the annular frame 22 in the extending direction of the central axes of the annular light source 21 and the annular frame 22. In this way, when the cell and the annular light source 21 are located on the same side of the annular frame 22 in the extending direction of the central axes of the annular light source 21 and the annular frame 22, it is possible to avoid the annular frame 22 blocking the light emitted by the annular light source 21, thereby facilitating the uniform illumination of the annular light source 21 on the entire circumferential edge of the cell.

[0066] Furthermore, in a preferred embodiment, the annular light source 21 is in a square ring shape.

[0067] Since the shape of the battery cell is usually rectangular, the annular light source 21 is configured in a square ring shape, which can not only ensure the applicability of the annular light source 21 to the rectangular battery cell, but also ensure that the annular light source 21 evenly illuminates the edges of the rectangular battery cell.

[0068] In other embodiments, depending on the shape of the battery cell, the annular light source 21 can also be in a circular, pentagonal, or hexagonal shape that matches the shape of the battery cell. The shape of the annular light source 21 is flexible and can be selected based on actual usage requirements.

[0069] For the second light source assembly 3, further, in a preferred embodiment, as Figure 1 As shown, the second light source assembly 3 includes a planar light source 31, and the planar light source 31 is used to transmit light along the thickness direction of the battery sheet ( Figure 1 The Z direction in the image is used to illuminate the battery cell.

[0070] With such an arrangement, the planar light source 31 can not only provide uniform light distribution, so that each part of the illuminated cell can be illuminated by light of the same intensity, avoiding uneven brightness, which is beneficial to further improve the accuracy of the grayscale value, but also can cover a larger area and illuminate a wide area at the same time, which is beneficial to ensure that the cell can be located within the illumination range of the planar light source 31, and thus is beneficial to ensure the light transmission effect of chipped edges and fragments on the cell.

[0071] In other embodiments, the second light source assembly 3 includes only one bulb, and the battery cell is located within the irradiation range of the bulb. This configuration simplifies the composition of the second light source assembly 3, thereby helping to reduce the manufacturing cost of the second light source assembly 3.

[0072] Further, in a preferred embodiment, Figure 1 and Figure 2 As shown, the second light source assembly 3 further includes a second light source mounting member 32 , and the planar light source 31 is disposed on the second light source mounting member 32 .

[0073] like Figure 1 and Figure 2 As shown, the mounting frame 1 includes a second light source mounting bracket 11 for mounting the second light source assembly 3, and the second light source mounting bracket 11 includes a support member 111, and the support member 111 is connected to the second light source mounting member 32 by a first bolt, as shown in FIG. Figure 3 As shown, one of the support member 111 and the second light source mounting member 32 is provided with a first oblong hole 1111 for the first bolt to pass through, and the other is provided with a threaded hole for threadedly mating with the first bolt. The length direction of the first oblong hole 1111 is along a direction perpendicular to the conveying direction of the battery sheet ( Figure 1 The Y direction in the figure extends.

[0074] With such arrangement, the reliability of the installation of the planar light source 31 can be ensured by the second light source mounting member 32, and by providing the first oblong hole 1111, the position of the second light source assembly 3 can be adjusted in a direction perpendicular to the conveying direction of the battery cell, thereby facilitating the correspondence of the second light source assembly 3 with the battery cell in this direction, thereby ensuring that the battery cell can be located within the illumination range of the second light source assembly 3.

[0075] In a preferred embodiment, Figure 3 As shown, the support member 111 is provided with a first oblong hole 1111 for the first bolt to pass through, and the second light source mounting member 32 is provided with a threaded hole (not shown) for threadedly cooperating with the first bolt.

[0076] Since the first oblong hole 1111 has a relatively long length, such a configuration not only enables the second light source mounting component 32 to have a relatively small size, thereby facilitating the setting of the second light source assembly 3, but also since the supporting component 111 provided with the first oblong hole 1111 has a relatively large size, the supporting component 111 can also support the second light source assembly 3, thereby enhancing the stability of the setting of the second light source assembly 3.

[0077] Regarding the support member 111, in the embodiment of the present application, the support member 111 may be a support rod or a support plate. The shape of the support member 111 is relatively flexible and may be selected according to actual usage requirements.

[0078] Further, in a preferred embodiment, Figure 1 and Figure 2 As shown, the mounting frame 1 also includes a mounting frame body 12, the annular frame 22 is arranged on the mounting frame body 12, and two second light source mounting brackets 11 are provided. In the direction perpendicular to the conveying direction of the battery sheet, the two second light source mounting brackets 11 are respectively arranged on both sides of the second light source assembly 3. The second light source mounting bracket 11 also includes a connecting member 112, which is arranged on the mounting frame body 12 and is arranged in the thickness direction of the battery sheet ( Figure 1In the Z direction), the connecting member 112 extends from the mounting frame body 12 in a direction away from the first light source assembly 2, and the supporting member 111 is connected to a side of the connecting member 112 away from the first light source assembly 2.

[0079] With such arrangement, the second light source assembly 3 can be more stably installed on the mounting frame 1 through the two second light source mounting brackets 11. Through the connecting member 112, the supporting member 111 can be kept away from the first light source assembly 2 in the thickness direction of the battery cell, and the second light source assembly 3 connected to the supporting member 111 can also be kept away from the first light source assembly 2, that is, in the thickness direction of the battery cell, the distance between the second light source assembly 3 and the first light source assembly 2 can be increased, so as to facilitate the battery cell to enter between the second light source assembly 3 and the first light source assembly 2.

[0080] Furthermore, in a preferred embodiment, the mounting frame body 12 is used to be fixed to a base surface, such as Figure 1 and Figure 2 As shown, the mounting frame body 12 includes a fixing member 121 for connecting with the base surface via a second bolt. Figure 4 As shown, the fixing member 121 is provided with a second oblong hole 1211 for the second bolt to pass through, and the length direction of the second oblong hole 1211 is along the conveying direction of the battery sheet ( Figure 1 The X direction in the figure extends.

[0081] With such arrangement, the position of the mounting frame body 12 can be adjusted in the conveying direction of the battery cell through the second oblong hole 1211, and further, the position of the first light source assembly 2 and the second light source assembly 3 arranged on the mounting frame body 12 can be adjusted in the conveying direction of the battery cell, so that the first light source assembly 2 and the second light source assembly 3 correspond to the battery cell in the conveying direction of the battery cell, ensuring that the battery cell can be located within the illumination range of the first light source assembly 2 and the second light source assembly 3, and further ensuring uniform illumination of the battery cell by the first light source assembly 2 and the second light source assembly 3.

[0082] More importantly, through the first oblong hole 1111 and the second oblong hole 1211, not only can the position of the second light source assembly 3 be adjusted in a direction perpendicular to the conveying direction of the battery cell, but also the position of the second light source assembly 3 can be adjusted in the conveying direction of the battery cell, making the position adjustment of the second light source assembly 3 more flexible.

[0083] Regarding the base surface, it should be noted that the base surface can be the surface of the equipment, or the table top or the ground of a workbench. The choice of the base surface is relatively flexible, and can be specifically selected according to actual usage conditions.

[0084] For the mounting frame 1, further, in a preferred embodiment, as Figure 1 and Figure 2As shown, the mounting frame 1 further includes an imaging component mounting assembly 13 , and the imaging component mounting assembly 13 includes an imaging component bracket 131 and a reinforcing member 132 .

[0085] like Figure 1 As shown, the imaging member bracket 131 includes a first section 1311 and a second section 1312 arranged in an L shape, one end of the first section 1311 is connected to one end of the second section 1312, the other end of the first section 1311 is mounted with the imaging member 4, and the end of the second section 1312 away from the first section 1311 is connected to the mounting frame body 12. The reinforcement member 132 is connected between the first section 1311 and the second section 1312.

[0086] The imaging component mounting assembly 13 is arranged in this way, so that the imaging component mounting assembly 13 forms a triangular three-dimensional structure, so that the imaging component 4 can be stably mounted on the mounting frame 1, thereby ensuring the imaging quality of the imaging component 4, which is conducive to ensuring the accuracy of the grayscale value of the imaged picture. In addition, through the triangular three-dimensional structure, the imaging component mounting assembly 13 can also have a relatively small space occupancy rate, which is conducive to reducing the impact of the imaging component mounting assembly 13 on the operation.

[0087] Embodiment 2

[0088] The present application also provides a battery production system, such as Figure 5 As shown, the battery production system includes a detection device 100. The detection device 100 has the same structure as any of the detection devices 100 in the above embodiments and can bring the same or similar beneficial effects. For details, please refer to the description in the above embodiments, which will not be repeated in this embodiment.

[0089] In the present application, when the first light source component 2 and the second light source component 3 cooperate to jointly illuminate the battery cell, uniform illumination of the battery cell helps to make the edge fracture, broken pieces and other defects on the battery cell more obvious. In this way, after the imaging component 4 takes a picture of the battery cell jointly illuminated by the first light source component 2 and the second light source component 3, it helps to improve the accuracy of the grayscale value of the image obtained by imaging, and further helps to make the grayscale value of the image obtained by imaging accurately reflect the edge fracture, broken pieces and other defects on the battery cell. This is not only helpful to avoid misjudging qualified battery cells as unqualified battery cells, and helps to avoid qualified battery cells from being removed, thereby helping to reduce costs, but also helps to avoid misjudging unqualified battery cells as qualified battery cells, and helps to avoid qualified battery cells from colliding with unqualified battery cells blocking the flower basket mouth and having problems such as edge fracture and broken pieces, thereby helping to reduce the unqualified rate and cost of battery cells. As the unqualified rate of battery cells decreases, it is helpful to improve the normal operating time of the battery production system, and further helps to improve the utilization rate of the battery production system.

[0090] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit it. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A detection device, characterized in that: include: Mounting frame; A first light source assembly, the first light source assembly is arranged on the mounting frame, and the first light source assembly is used to illuminate the entire circumferential edge of the battery sheet; a second light source assembly, the second light source assembly being arranged on the mounting frame, the second light source assembly being arranged on one side of the battery cell along the thickness direction of the battery cell, and the second light source assembly being arranged to illuminate the battery cell along the thickness direction of the battery cell, so that the battery cell is located within the irradiation range of the second light source assembly; An imaging component is disposed on the mounting frame and is used to take a photo of the battery cell illuminated by the first light source assembly and the second light source assembly.

2. The detection device according to claim 1, characterized in that: The first light source assembly includes an annular light source, and the annular light source is used to be arranged corresponding to the full circumferential edge of the battery sheet, and the annular light source is used to illuminate the full circumferential edge of the battery sheet.

3. The detection device according to claim 2, characterized in that: The first light source assembly further comprises an annular frame having the same shape as the annular light source, the annular frame being arranged on the mounting frame, the annular frame and the annular light source being arranged on the same central axis, and the annular light source being arranged on the annular frame.

4. The detection device according to claim 3, characterized in that: The annular light source is arranged on the inner side of the annular frame.

5. The detection device according to any one of claims 2 to 4, characterized in that: The annular light source is in a square ring shape.

6. The detection device according to any one of claims 1 to 4, characterized in that: The second light source assembly includes a planar light source, and the planar light source is used to illuminate the battery cell along a thickness direction of the battery cell.

7. The detection device according to claim 6, characterized in that: The second light source assembly further comprises a second light source mounting member, and the planar light source is disposed on the second light source mounting member; The mounting frame includes a second light source mounting bracket for mounting the second light source assembly, the second light source mounting bracket includes a support member, the support member and the second light source mounting member are connected by a first bolt, one of the support member and the second light source mounting member is provided with a first oblong hole for the first bolt to pass through, and the other is provided with a threaded hole for threaded cooperation with the first bolt, and the length direction of the first oblong hole extends in a direction perpendicular to the conveying direction of the battery cell.

8. The detection device according to claim 7, characterized in that: The mounting frame also includes a mounting frame body for fixing to a base surface, the mounting frame body includes a fixing member for connecting to the base surface via a second bolt, the fixing member is provided with a second oblong hole for the second bolt to pass through, and the length direction of the second oblong hole extends along the conveying direction of the battery cell.

9. The detection device according to any one of claims 1 to 4, characterized in that: The mounting frame also includes a mounting frame body and an imaging component mounting assembly, and the imaging component mounting assembly includes an imaging component bracket and a reinforcement member; The imaging component bracket includes a first section and a second section arranged in an L shape, one end of the first section is connected to one end of the second section, the other end of the first section is equipped with the imaging component, and the end of the second section away from the first section is connected to the mounting frame body; the reinforcement member is connected between the first section and the second section.

10. A battery production system, characterized in that: include: The detection device according to any one of claims 1 to 9.

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