Camera device and winding machine system

Abstract

A camera device (200) includes a camera (210) and a lens (220). The angle between the chip target plane (41) of the camera (210) and the mirror plane (11) of the lens (220) is a predetermined angle, the angle value of which is greater than 0 degrees and less than or equal to 20 degrees. This camera device (200) is suitable for a winding machine system (1000) and can achieve image focusing on different working planes, thereby enabling the simultaneous acquisition of clear images of cathode and anode features using a single camera.

Description

Technical Field

[0001] This disclosure relates to the field of battery manufacturing technology, and in particular to a camera device and a winding machine system. Background Technology

[0002] During the battery winding process, the battery winding machine needs to detect the winding positions of the cathode, anode, first separator, and second separator of each layer of winding material in the battery cell. Cells exceeding the specified positions will be alarmed and rejected. A CCD (Charge-coupled Device) device needs to be used on the winding machine to monitor the misalignment between the electrodes and separators in real time, and the calculation results should be fed back to the host computer software to ensure that the key dimensions and other indicators of the battery cell meet product manufacturing standards.

[0003] The relevant technology requires the use of two independent cameras to capture cathode and anode features. If the relative position or angle of the two cameras changes due to the continuous vibration of the machine during a long production process, the features to be inspected will be shifted in the image, resulting in increasingly larger cumulative errors. Summary of the Invention

[0004] In view of the above problems, this disclosure provides a camera device and a winding machine system that can capture cathode features and anode features using a single camera.

[0005] In a first aspect, this disclosure provides a camera device, including: a camera and a lens, wherein the angle between the chip target plane of the camera and the mirror plane of the lens is a predetermined angle, the angle value of the predetermined angle being greater than 0 degrees and less than or equal to 20 degrees.

[0006] In the technical solution of this disclosure embodiment, during the battery winding process, the anode feature detection area and the cathode feature detection area are located on different working planes. The distance between these different working planes (e.g., 100mm) far exceeds the depth of field of a conventional camera (e.g., 5-15mm). Therefore, a conventional single camera cannot simultaneously acquire clear images of both cathode and anode features. Since the angle between the chip target plane and the lens plane of the camera in the above embodiment of this disclosure is a predetermined angle, the camera device can achieve image focusing on different working planes. Thus, a single camera can simultaneously acquire clear images of both cathode and anode features.

[0007] In some embodiments, a camera device is mounted at a target position on a battery winding machine to simultaneously acquire image information of a first detection area and image information of a second detection area. The target position is determined according to a predetermined angle. The battery winding machine is used to wind the cathode and anode plates of the battery. The image information of the first detection area includes cathode features of the cathode plate, and the image information of the second detection area includes anode features of the anode plate. The camera device's position relative to the target position on the winding machine and the predetermined angle between the camera device and the target position allow the camera device to simultaneously acquire clear images of both cathode and anode features.

[0008] In some embodiments, the predetermined angle and the target position ensure that the first detection area and the second detection area simultaneously satisfy the Gaussian imaging formula. This disclosure, through gradual adjustment of the camera device's mounting position on the battery winding machine and a novel optical imaging method that adjusts the back focal length, enables the first and second detection areas to simultaneously satisfy the Gaussian imaging formula, achieving image focusing on different working planes.

[0009] In some embodiments, the first detection area and the second detection area simultaneously satisfy the Gaussian imaging formula as follows: the distance between the first detection area and the center of the lens plane, the distance between the center of the lens plane and the first imaging point of the camera chip target plane, and the lens focal length satisfy the Gaussian imaging formula; at the same time, the distance between the second detection area and the center of the lens plane, the distance between the center of the lens plane and the second imaging point of the camera chip target plane, and the lens focal length satisfy the Gaussian imaging formula.

[0010] In some embodiments, the camera device further includes a connection module disposed between the camera and the lens, wherein the connection module is used to connect and fix the camera and the lens. This disclosure achieves the connection and fixation of the camera and the lens through a connection module, thereby enabling the use of a single camera to capture cathode and anode features. Furthermore, due to the connection module in the hardware design, the relative positions of the anode and cathode will not shift due to continuous machine vibration during long-term production processes.

[0011] In some embodiments, the connection module includes a lens connection surface and a camera connection surface, wherein the lens connection surface is the connection surface between the connection module and the lens, the camera connection surface is the connection surface between the connection module and the camera, and the included angle between the lens connection surface and the camera connection surface is equal to the predetermined angle. This disclosure sets the included angle between the lens connection surface and the camera connection surface of the connection module as a predetermined angle, thereby allowing the angle between the chip target plane of the camera and the mirror plane of the lens to be fixed at the predetermined angle while simultaneously connecting and fixing the camera and the lens.

[0012] In some embodiments, the connecting module includes a first connector and a second connector, wherein the first connector is used to connect and fix with a lens and to a second connector, and the second connector is used to connect and fix with a camera; the upper surface of the first connector is a lens connection surface, the lower surface of the first connector is connected to the upper surface of the second connector, and the lower surface of the second connector is a camera connection surface. In some embodiments of this disclosure, the connecting module includes a first connector and a second connector, and the connection and fixation of the lens and the camera can be more conveniently achieved through the two connectors.

[0013] In some embodiments, the angle between the upper and lower surfaces of the first connector is equal to the predetermined angle; the upper and lower surfaces of the second connector are parallel. In some embodiments of this disclosure, the upper and lower surfaces of the first connector can be tilted, that is, the function of the first connector is to connect and fix the lens to the second connector, and by making the angle between the upper and lower surfaces of the first connector equal to the predetermined angle, the overall tilt of the connecting module satisfies the predetermined angle. In some embodiments of this disclosure, the function of the second connector is to connect and fix the first connector and the camera.

[0014] In some embodiments, the connecting module includes a first connector, which is used to connect and fix with a lens and a camera. The upper surface of the first connector is a lens connection surface, and the lower surface of the first connector is a camera connection surface. In some embodiments of this disclosure, the connecting module includes only the first connector, and the upper and lower surfaces of the first connector are tilted. That is, the function of the first connector is to connect and fix the lens and the camera, and the overall tilt of the connecting module satisfies the predetermined angle by making the included angle between the upper and lower surfaces of the first connector equal to the predetermined angle.

[0015] In some embodiments, the angle between the upper and lower surfaces of the first connector is adjustable. The camera device further includes a camera control device, which is used to acquire the positional relationship between the first detection area and the second detection area, determine the predetermined angle and the target position based on the positional relationship between the first detection area and the second detection area, adjust the angle between the upper and lower surfaces of the first connector to the predetermined angle, and install the camera device at the target position. In some embodiments of this disclosure, the angle between the upper and lower surfaces of the first connector is adjustable, and the camera device further includes a camera control device. The camera control device determines the predetermined angle and the target position based on the positional relationship between the first and second detection areas, and adjusts the camera device to the predetermined angle and the target position. This allows for the adjustment of the predetermined angle based on the positional relationship between the first and second detection areas.

[0016] In some embodiments, the camera device further includes a camera control device, wherein the camera control device is used to instruct a manufacturing device to pre-prepare a plurality of first connectors with different included angles between their upper and lower surfaces, obtain the positional relationship between a first detection area and a second detection area, determine the predetermined included angle and the target position based on the positional relationship between the first and second detection areas, select a first connector with the included angle between its upper and lower surfaces as the predetermined included angle as the first connector to be used, and install the camera device at the target position. In some embodiments of this disclosure, a plurality of first connectors with different included angles between their upper and lower surfaces are pre-prepareed. The camera device further includes a camera control device, which determines the predetermined included angle and the target position based on the positional relationship between the first and second detection areas, selects a first connector with the included angle between its upper and lower surfaces as the predetermined included angle as the first connector to be used, and adjusts the camera device to the target position. This allows for the selection and adaptation of first connectors with different predetermined included angles based on the positional relationship between the first and second detection areas.

[0017] Secondly, this disclosure provides a winding machine system, including a battery winding machine and a camera device as described in any of the above embodiments.

[0018] The above description is merely an overview of the technical solution disclosed herein. In order to better understand the technical means of this disclosure and to implement it in accordance with the contents of the specification, and to make the above and other objects, features and advantages of this disclosure more apparent and understandable, specific embodiments of this disclosure are described below. Attached Figure Description

[0019] To more clearly illustrate the technical solutions of the embodiments of this disclosure, the accompanying drawings used in the embodiments of this disclosure will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this disclosure. For those skilled in the art, other drawings can be obtained based on the drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the structure of a winding machine system provided in some embodiments of this disclosure.

[0021] Figure 2 A schematic diagram of a winding machine system provided for other embodiments of this disclosure.

[0022] Figure 3 This is a schematic diagram illustrating the visual imaging principle of a camera device lens provided in some embodiments of this disclosure.

[0023] Figure 4 This is an assembly diagram of a camera device provided in some embodiments of this disclosure.

[0024] Figure 5 This is a 3D exploded view of a camera device provided in some embodiments of this disclosure.

[0025] Figure 6 This is an assembly diagram of a camera device provided for other embodiments of this disclosure.

[0026] Figure 7 This is an assembly diagram of a camera device provided for some embodiments of the present disclosure.

[0027] The accompanying drawings are not drawn to scale. The reference numerals for the specific embodiments are as follows:

[0028] 1000 vehicles;

[0029] Battery winding machine 100, camera device 200, first detection area 300, second detection area 400, anode electrode 500, cathode electrode 600, first separator 700 and second separator 800;

[0030] Camera 4, lens 1, first connector 2, second connector 3, camera control device 5;

[0031] The camera chip target surface is plane 41, and the lens surface is plane 11.

[0032] The center of the lens plane is 111, the first imaging point of the camera chip target plane is 411, and the second imaging point of the camera chip target plane is 412. Detailed Implementation

[0033] The embodiments of the technical solutions disclosed herein will now be described in detail with reference to the accompanying drawings. These embodiments are merely illustrative of the technical solutions disclosed herein and are therefore intended to limit the scope of protection of this disclosure.

[0034] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this disclosure belongs; the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of this disclosure; the terms “comprising” and “having”, and any variations thereof, in the specification, claims and foregoing description of the drawings of this disclosure are intended to cover non-exclusive inclusion.

[0035] In the description of the embodiments of this disclosure, technical terms such as "first" and "second" are used only to distinguish different objects and should not be construed as indicating or implying relative importance or implicitly specifying the number, specific order, or primary or secondary relationship of the indicated technical features. In the description of the embodiments of this disclosure, "a plurality of" means two or more, unless otherwise explicitly defined.

[0036] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this disclosure. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0037] In the description of the embodiments of this disclosure, the term "and / or" is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, or B existing alone. Additionally, the character " / " in this document generally indicates that the preceding and following related objects have an "or" relationship.

[0038] In the description of the embodiments of this disclosure, the term "multiple" refers to two or more (including two), similarly, "multiple groups" refers to two or more (including two groups), and "multiple pieces" refers to two or more (including two pieces).

[0039] In the description of the embodiments of this disclosure, the technical terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the embodiments of this disclosure and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of this disclosure.

[0040] In the description of the embodiments of this disclosure, unless otherwise expressly specified and limited, technical terms such as "installation," "connection," "joining," and "fixing" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of this disclosure according to the specific circumstances.

[0041] The current manufacturing process of lithium-ion batteries involves a winding process, where the anode, cathode, and separator are wound into a complete semi-cell. During the winding process, the alignment of the anode, cathode, and separator must be within ±0.5mm. Exceeding this range poses a risk of short circuits, which could even cause fires and explosions during use. Therefore, reliable detection methods are needed to monitor the winding process in real time and prevent oversized cells from entering subsequent processes.

[0042] The inventors noted that during the battery cell winding process, it is necessary to simultaneously detect the alignment of each winding material in the first detection area (battery cell entry section) and the alignment of each winding material in the second detection area (battery cell winding section). Since the first and second detection areas are located on different working planes, the camera device needs to be able to simultaneously achieve focusing on different working planes.

[0043] The related camera device includes two camera assemblies: a first camera assembly for detecting the alignment of the winding materials in the feed section of the battery cell; and a second camera assembly for detecting the alignment of the winding materials in the winding section of the battery cell. This related technology requires two independent cameras to be interconnected in order to detect the alignment of the cathode and anode of the battery cell.

[0044] The inventors noted that the technical solution of the related technology requires two independent cameras to be interconnected. If the relative position or angle of the two cameras changes due to continuous vibration of the machine during long-term production, the features to be inspected will shift accordingly in the image, resulting in increasingly larger cumulative errors. In this technical solution, the stability of the fixed camera cannot be fully guaranteed on a vibrating machine; that is, the solution relying on the coordinate system calibration between the two cameras inherently has serious stability risks. Therefore, this disclosure requires the design of a structurally stable camera structure that can use a single camera to capture anode and cathode features.

[0045] The inventors also noted that a related technology exists that uses a single camera to capture the anode and cathode characteristics when a rhomboid needle is used in the winding machine. However, this technology is only applicable to rhomboid needles, i.e., when the entry position and the winding position are on the same working plane, and cannot be applied to circular needles (where the entry position and the winding position are not on the same working plane in most existing machine models). In this technology, the tension of the rhomboid needle changes periodically during the winding process, which is detrimental to the stability of the wound product.

[0046] Therefore, it is necessary to design a camera device with a stable structure that can use a single camera to capture the anode and cathode characteristics when the infeed position and the winding position are not on the same working plane.

[0047] The camera device disclosed in this embodiment can be applied to, but is not limited to, winding machine systems, and can be applied to, but is not limited to, the winding process in the battery manufacturing process. The camera device disclosed in this embodiment can achieve image focusing on different working planes by adjusting the back focal length through a novel optical imaging method.

[0048] For ease of explanation, the following embodiments use a winding machine system for battery manufacturing as an example.

[0049] Please refer to Figure 1 , Figure 1 This is a schematic diagram of the structure of a winding machine system provided in some embodiments of this disclosure. The winding machine system 1000 includes a battery winding machine 100 and a camera device 200, wherein the winding needle of the battery winding machine 100 is a circular winding needle. Since the first detection area and the second detection area are located on different working planes, the camera device needs to be able to simultaneously achieve focusing on different working planes.

[0050] In some embodiments of this disclosure, the winding needle of the winding machine system may also be a prismatic needle or an elliptical needle.

[0051] Battery winding machine 100 is used to wind the cathode and anode plates of a battery.

[0052] A camera device 200 is used to detect and acquire image information of a first detection area 300 and an image information of a second detection area 400, wherein the image information of the first detection area 300 is image information of each winding material in the battery cell winding section, and the image information of the second detection area 400 is image information of each winding material in the battery cell winding section. Figure 2 As shown, each layer of the wound material includes an anode plate 500, a cathode plate 600, a first diaphragm 700, and a second diaphragm 800.

[0053] In some embodiments of this disclosure, such as Figure 1 As shown, the image information of the first detection area 300 includes the cathode features of the cathode electrode, and the image information of the second detection area 400 includes the anode features of the anode electrode.

[0054] Please refer to Figure 2 , Figure 2 This is a schematic diagram of a winding machine system provided in other embodiments of this disclosure. The winding machine system 1000 includes a battery winding machine 100 and a camera device 200, as shown below. Figure 2 As shown, the camera device disclosed herein may include: a camera 4 and a lens 1, wherein the angle between the chip target plane 41 of the camera 4 and the mirror plane 11 of the lens 1 is a predetermined angle, wherein the angle value of the predetermined angle is greater than 0 degrees and less than or equal to 20 degrees.

[0055] In the technical solution of this disclosure, during the battery winding process, the anode feature detection area and the cathode feature detection area are located on different working planes. The distance between these different working planes is far greater than the depth of field of a conventional camera. Therefore, a conventional single camera cannot simultaneously acquire clear images of both cathode and anode features. However, the above-described embodiment of this disclosure sets a predetermined angle between the chip target plane of the camera and the mirror plane of the lens. Thus, the above-described embodiment of this disclosure can achieve image focusing on different working planes, thereby enabling the simultaneous acquisition of clear images of both cathode and anode features using a single camera.

[0056] In some embodiments, such as Figure 1 and Figure 2 As shown, a camera device 200 is mounted at a target position on a battery winding machine 100 to simultaneously acquire image information of a first detection area and image information of a second detection area. The target position is determined according to a predetermined angle. The battery winding machine is used to wind the cathode and anode plates of the battery. The image information of the first detection area includes the cathode features of the cathode plate, and the image information of the second detection area includes the anode features of the anode plate. The camera device's target position relative to the winding machine and the predetermined angle between the camera device and the target position allow the camera device to simultaneously acquire clear images of both the cathode and anode features.

[0057] In some embodiments of this disclosure, the working distance between the camera device 200 and the battery winding machine 100 can be 260 mm; and the distance between the camera device 200 and the core shaft in the vertical direction (height direction) can be 40 mm.

[0058] In some embodiments of this disclosure, the imaging accuracy of the camera device for the first detection area can be 0.03 mm / px, and the imaging accuracy of the camera device for the second detection area can be 0.023 mm / px.

[0059] In some embodiments, such as Figure 2 As shown, the predetermined angle and the target position ensure that the first detection area and the second detection area simultaneously satisfy the Gaussian imaging formula. This disclosure, through gradual adjustment of the camera device mounted at the target position of the battery winding machine, and by adjusting the back focal length using a novel optical imaging method, enables the first and second detection areas to simultaneously satisfy the Gaussian imaging formula, achieving image focusing on different working planes.

[0060] Please refer to Figure 3 , Figure 3 This is a schematic diagram illustrating the visual imaging principle of a camera device lens provided in some embodiments of this disclosure. For example... Figure 3As shown, the distance S1' between the first detection area 300 and the center 111 of the lens plane, the distance S2' between the center 111 of the lens plane and the first imaging point 411 of the camera chip target plane, and the lens focal length f satisfy the Gaussian imaging formula, see formula (1); at the same time, the distance S1” between the second detection area and the center 111 of the lens plane, the distance S2” between the center 111 of the lens plane and the second imaging point 412 of the camera chip target plane, and the lens focal length f satisfy the Gaussian imaging formula, see formula (2).

[0061] 1 / S1'+1 / S2'=1 / f (1)

[0062] 1 / S1”+1 / S2”=1 / f (2)

[0063] The present invention discloses a specific angle between the chip target plane of the camera and the mirror plane of the lens in the above embodiments, thereby enabling the first detection area and the second detection area to simultaneously satisfy the Gaussian imaging formula, and enabling image focusing on different working planes.

[0064] When different object distances are required for imaging with the same convex lens according to the above embodiments of the present disclosure, the back focal length can be adjusted to achieve focusing imaging at different working distances.

[0065] The novel optical imaging method described in the above embodiments of this disclosure can achieve image focusing on different working planes.

[0066] The embodiments disclosed above are compatible with circular coiled needles, and the production capacity of circular coiled needles is 2-3 times that of prismatic coiled needles. For example, the production capacity of circular coiled needles is 3 times that of square or oval coiled needles. The winding linear speed of square or oval coiled needles is 600-700 mm / s, while the winding linear speed of circular coiled needles is 2000-2500 mm / s.

[0067] In some embodiments, the camera device further includes a connection module disposed between the camera and the lens, wherein the connection module is used to connect and fix the camera and the lens. This disclosure achieves the connection and fixation of the camera and the lens through a connection module, thereby enabling the use of a single camera to capture cathode and anode features. Furthermore, due to the connection module in the hardware design, the relative positions of the anode and cathode will not shift due to continuous machine vibration during long-term production processes.

[0068] In some embodiments, the connection module includes a lens connection surface and a camera connection surface, wherein the lens connection surface is the connection surface between the connection module and the lens, the camera connection surface is the connection surface between the connection module and the camera, and the included angle between the lens connection surface and the camera connection surface is equal to the predetermined angle. This disclosure sets the included angle between the lens connection surface and the camera connection surface of the connection module as a predetermined angle, thereby allowing the angle between the chip target plane of the camera and the mirror plane of the lens to be fixed at the predetermined angle while simultaneously connecting and fixing the camera and the lens.

[0069] Please refer to Figure 4 and Figure 5 , Figure 4 This is an assembly diagram of a camera device provided in some embodiments of this disclosure. Figure 5 This is a 3D exploded view of a camera device provided for some embodiments of this disclosure. In some embodiments, such as Figure 4 and Figure 5 As shown, the camera device may include a lens 1, a camera 4, and a connecting module disposed between the camera and the lens. The connecting module includes a first connector 2 and a second connector 3. The first connector 2 is used to connect and fix to the lens 1 and to the second connector 3, and the second connector 3 is used to connect and fix to the camera 4. The upper surface of the first connector 2 is the lens connection surface, the lower surface of the first connector 2 is connected to the upper surface of the second connector 3, and the lower surface of the second connector 3 is the camera connection surface. In some embodiments of this disclosure, the connecting module includes a first connector 2 and a second connector 3, which allows for more convenient connection and fixation of the lens and camera.

[0070] In some embodiments, such as Figure 4 and Figure 5 As shown, the angle between the upper and lower surfaces of the first connector 2 is equal to the predetermined angle; the upper and lower surfaces of the second connector 3 are parallel. In some embodiments of this disclosure, the upper and lower surfaces of the first connector 2 can be tilted, that is, the function of the first connector 2 is to connect and fix the lens to the second connector 3, and by making the angle between the upper and lower surfaces of the first connector 2 equal to the predetermined angle, the overall tilt of the connecting module satisfies the predetermined angle. In some embodiments of this disclosure, the function of the second connector 3 is to connect and fix the first connector 2 and the camera 4. In some embodiments of this disclosure, the main function of the second connector 3 is to serve as an intermediate hub connecting the connector 2 and the camera 4.

[0071] In some embodiments, such as Figure 4 and Figure 5As shown, the external thread of lens 1 is connected and fixed by the internal thread of the first connector 2; the first connector 2 and the second connector 3 are connected and fixed by small screw holes, threads and screws around the through hole; the second connector 3 and the camera 4 are connected and fixed by small screw holes, threads and screws around the through hole.

[0072] The embodiments of this disclosure can capture the anode and cathode features using a single camera. Due to hardware design reasons, the relative positions of the anode and cathode will not shift due to continuous vibration of the machine during long production processes.

[0073] The embodiments of this disclosure, through a novel optical imaging method that adjusts the back focal length, enable image focusing on different working planes. The correspondence between the two working planes in the embodiments of this disclosure remains stable.

[0074] Please refer to Figure 6 , Figure 6 This is an assembly diagram of a camera device provided for other embodiments of this disclosure. In some embodiments, such as Figure 6 As shown, the camera device may include a lens 1, a camera 4, and a connecting module disposed between the camera and the lens. The connecting module includes a first connector 2, which is used to connect and fix the lens and the camera. The upper surface of the first connector 2 is the lens connection surface, and the lower surface of the first connector 2 is the camera connection surface. In some embodiments of this disclosure, the connecting module only includes the first connector 2, and the upper and lower surfaces of the first connector 2 are tilted. That is, the function of the first connector 2 is to connect and fix the lens and the camera, and the overall tilt of the connecting module satisfies the predetermined angle by making the included angle between the upper and lower surfaces of the first connector 2 equal to the predetermined angle.

[0075] Figure 6 Examples and Figure 4 and Figure 5 Compared to the previous embodiment, the number of connectors has been reduced. In some embodiments, such as Figure 6 As shown, provided that the design of the first connector 2 is sufficiently complex, the first connector 2 can be directly connected to the camera 4 through small screw holes, threads, screws around the through hole.

[0076] The correspondence between the two different working planes in the camera imaging of the above embodiments of this disclosure depends on the size of the angle between the connecting member between the camera and the lens and the camera lens.

[0077] The correspondence between the two different working planes in the camera imaging of the above embodiments of this disclosure will not change due to external vibrations or the camera's long-term operation and the shift in its installation position.

[0078] Please refer to Figure 7 , Figure 7 This is an assembly diagram of a camera device provided for some embodiments of the present disclosure. For example... Figure 7 As shown, the camera device also includes a camera control device 5, which is connected to the first connecting member 2. The angle between the upper and lower surfaces of the first connecting member 2 is adjustable. The camera control device 5 is used to acquire the positional relationship between the first detection area and the second detection area, determine the predetermined angle and the target position based on the positional relationship, adjust the angle between the upper and lower surfaces of the first connecting member 2 to the predetermined angle, and install the camera device at the target position. In the above embodiment of this disclosure, the angle between the upper and lower surfaces of the first connecting member 2 is adjustable, and the camera device also includes a camera control device. The camera control device determines the predetermined angle and the target position based on the positional relationship between the first and second detection areas, and adjusts the camera device to the predetermined angle and the target position. This allows for the adjustment of the predetermined angle based on the positional relationship between the first and second detection areas.

[0079] The embodiments of this disclosure can employ a specific structure to make the included angle between the upper and lower surfaces of the first connector 2 adjustable. Alternatively, the embodiments of this disclosure can employ a specific structure to make the included angle between the lens connection surface and the camera connection surface of the connecting module adjustable.

[0080] In the above embodiments of this disclosure, the connection module (linking mechanism) between the single camera and the lens can be an adjustable mechanism, which can be adjusted in different ways according to different needle diameters, and the predetermined angle range can be 0-20 degrees.

[0081] In other embodiments of this disclosure, such as Figure 7 As shown, the camera device also includes a camera control device 5, which is connected to the first connector 2. The camera control device 5 can be used to instruct the manufacturing equipment to pre-prepare multiple first connectors 2 with different angles between their upper and lower surfaces, obtain the positional relationship between the first detection area and the second detection area, determine the predetermined angle and the target position based on the positional relationship between the first detection area and the second detection area, select the first connector 2 with the predetermined angle between its upper and lower surfaces as the first connector 2 to be used, and install the camera device at the target position.

[0082] Therefore, in the above embodiments of this disclosure, multiple first connectors 2 with different included angles between their upper and lower surfaces can be pre-prepared. The camera control device determines the predetermined included angle and the target position through the positional relationship between the first detection area and the second detection area, selects the first connector 2 with the included angle between the upper and lower surfaces as the predetermined included angle as the first connector 2 to be used, and adjusts the camera device to the target position. Thus, in the above embodiments of this disclosure, different first connectors with different included angles can be selected for different compatibility adjustments according to different needle diameters, and the angle range of the predetermined included angle can be 0-20 degrees.

[0083] Although this application has been described with reference to preferred embodiments, various modifications can be made thereto and components can be replaced with equivalents without departing from the scope of this application. In particular, the technical features mentioned in the various embodiments can be combined in any manner, provided there is no structural conflict. This application is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A camera device, comprising: A camera and a lens, wherein the angle between the chip target plane of the camera and the mirror plane of the lens is a predetermined angle, wherein the angle value of the predetermined angle is greater than 0 degrees and less than or equal to 20 degrees; The camera device is installed at the target position of the battery winding machine to simultaneously acquire image information of the first detection area and the second detection area; the target position is determined according to the predetermined angle; the battery winding machine is used to wind the cathode electrode and the anode electrode of the battery; the image information of the first detection area includes the cathode features of the cathode electrode; and the image information of the second detection area includes the anode features of the anode electrode.

2. The camera device according to claim 1, wherein, The predetermined angle and the target position ensure that the first detection area and the second detection area simultaneously satisfy the Gaussian imaging formula.

3. The camera device according to claim 2, wherein, The first detection area and the second detection area simultaneously satisfy the Gaussian imaging formula as follows: the distance between the first detection area and the center of the lens plane, the distance between the center of the lens plane and the first imaging point of the camera chip target plane, and the lens focal length satisfy the Gaussian imaging formula; at the same time, the distance between the second detection area and the center of the lens plane, the distance between the center of the lens plane and the second imaging point of the camera chip target plane, and the lens focal length satisfy the Gaussian imaging formula.

4. The camera device according to claim 1, further comprising: A connection module is installed between the camera and the lens, wherein the connection module is used to connect and fix the camera and the lens.

5. The camera device according to claim 4, wherein, The connection module includes a lens connection surface and a camera connection surface, wherein the lens connection surface is the connection surface between the connection module and the lens, the camera connection surface is the connection surface between the connection module and the camera, and the included angle between the lens connection surface and the camera connection surface is equal to the predetermined included angle.

6. The camera device according to claim 5, wherein, The connection module includes a first connector and a second connector. The first connector is used to connect and fix with a lens and to the second connector. The second connector is used to connect and fix with a camera. The upper surface of the first connector is the lens connection surface, the lower surface of the first connector is connected to the upper surface of the second connector, and the lower surface of the second connector is the camera connection surface.

7. The camera device according to claim 6, wherein, The angle between the upper surface and the lower surface of the first connector is equal to the predetermined angle; the upper surface and the lower surface of the second connector are parallel.

8. The camera device according to claim 5, wherein, The connection module includes a first connector, which is used to connect and fix with a lens and a camera. The upper surface of the first connector is the lens connection surface, and the lower surface of the first connector is the camera connection surface.

9. The camera device according to any one of claims 6-8, wherein, The angle between the upper and lower surfaces of the first connector is adjustable. The camera device also includes a camera control device, which is used to acquire the positional relationship between the first detection area and the second detection area, determine the predetermined angle and the target position based on the positional relationship between the first detection area and the second detection area, adjust the angle between the upper and lower surfaces of the first connector to the predetermined angle, and install the camera device at the target position.

10. The camera apparatus according to any one of claims 6-8, further comprising a camera control device, wherein, The camera control device is used to instruct the manufacturing equipment to pre-prepare multiple first connectors with different included angles between their upper and lower surfaces, obtain the positional relationship between the first detection area and the second detection area, determine the predetermined included angle and the target position based on the positional relationship between the first detection area and the second detection area, select the first connector with the included angle between its upper and lower surfaces as the predetermined included angle as the first connector to be used, and install the camera device at the target position.

11. A winding machine system comprising a battery winding machine and a camera device as claimed in any one of claims 1-10.

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