WO2023028804A1 - 相机装置和卷绕机系统 - Google Patents

相机装置和卷绕机系统 Download PDF

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Publication number
WO2023028804A1
WO2023028804A1 PCT/CN2021/115519 CN2021115519W WO2023028804A1 WO 2023028804 A1 WO2023028804 A1 WO 2023028804A1 CN 2021115519 W CN2021115519 W CN 2021115519W WO 2023028804 A1 WO2023028804 A1 WO 2023028804A1
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WO
WIPO (PCT)
Prior art keywords
camera
lens
detection area
connection
camera device
Prior art date
Application number
PCT/CN2021/115519
Other languages
English (en)
French (fr)
Inventor
陈志鹏
陈超
黄思应
张伟
Original Assignee
宁德时代新能源科技股份有限公司
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Application filed by 宁德时代新能源科技股份有限公司 filed Critical 宁德时代新能源科技股份有限公司
Priority to EP21925089.1A priority Critical patent/EP4166936A4/en
Priority to CN202180083965.XA priority patent/CN116601483A/zh
Priority to PCT/CN2021/115519 priority patent/WO2023028804A1/zh
Priority to US18/077,313 priority patent/US20230109550A1/en
Publication of WO2023028804A1 publication Critical patent/WO2023028804A1/zh

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    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/84—Systems specially adapted for particular applications
    • G01N21/88—Investigating the presence of flaws or contamination
    • G01N21/8851—Scan or image signal processing specially adapted therefor, e.g. for scan signal adjustment, for detecting different kinds of defects, for compensating for structures, markings, edges
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
    • H04N23/50—Constructional details
    • H04N23/54—Mounting of pick-up tubes, electronic image sensors, deviation or focusing coils
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/84—Systems specially adapted for particular applications
    • G01N21/88—Investigating the presence of flaws or contamination
    • G01N21/89—Investigating the presence of flaws or contamination in moving material, e.g. running paper or textiles
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/84—Systems specially adapted for particular applications
    • G01N21/88—Investigating the presence of flaws or contamination
    • G01N21/89—Investigating the presence of flaws or contamination in moving material, e.g. running paper or textiles
    • G01N21/8901—Optical details; Scanning details
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/84—Systems specially adapted for particular applications
    • G01N21/88—Investigating the presence of flaws or contamination
    • G01N21/89—Investigating the presence of flaws or contamination in moving material, e.g. running paper or textiles
    • G01N21/8914—Investigating the presence of flaws or contamination in moving material, e.g. running paper or textiles characterised by the material examined
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B17/00—Details of cameras or camera bodies; Accessories therefor
    • G03B17/02—Bodies
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B17/00—Details of cameras or camera bodies; Accessories therefor
    • G03B17/02—Bodies
    • G03B17/12—Bodies with means for supporting objectives, supplementary lenses, filters, masks, or turrets
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/04—Construction or manufacture in general
    • H01M10/0404—Machines for assembling batteries
    • H01M10/0409—Machines for assembling batteries for cells with wound electrodes
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/05—Accumulators with non-aqueous electrolyte
    • H01M10/058—Construction or manufacture
    • H01M10/0587—Construction or manufacture of accumulators having only wound construction elements, i.e. wound positive electrodes, wound negative electrodes and wound separators
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
    • H04N23/60—Control of cameras or camera modules
    • H04N23/69—Control of means for changing angle of the field of view, e.g. optical zoom objectives or electronic zooming
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10—Energy storage using batteries
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
    • Y02P70/50—Manufacturing or production processes characterised by the final manufactured product

Definitions

  • the present disclosure relates to the technical field of battery manufacturing, in particular to a camera device and a winder system.
  • the battery winding machine needs to detect the winding position of the cathode, anode, first separator, and second separator of each layer of each winding material of the battery cell. Carry out alarm rejection. It is necessary to use CCD (Charge-coupled Device, charge-coupled device) equipment on the winding machine to monitor the misalignment between the pole piece and the diaphragm in real time, and feed back the calculation results to the host computer software to ensure that the key dimensions of the cell product and other indicators meet Product production standards.
  • CCD Charge-coupled Device, charge-coupled device
  • the related technology needs to use two independent cameras to capture the cathode features and the anode features. If the relative position or angle of the two cameras changes due to the continuous vibration of the machine during the long-term production process, it will cause the features to be inspected to appear in the image. A corresponding offset occurs, resulting in an increasingly larger cumulative error.
  • the present disclosure provides a camera device and a winder system, which can photograph cathode features and anode features using a single camera.
  • the present 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, and the angle value of the predetermined angle is greater than 0 degrees and less than or equal to 20 degrees.
  • the anode feature detection area and the cathode feature detection area are on different working planes, and the distance between different working planes (for example, 100mm) far exceeds the depth of field of a conventional camera (for example, 5-15mm), so a conventional single camera cannot acquire clear images of cathode and anode features at the same time.
  • the included angle between the chip target surface plane of the camera and the mirror plane of the lens in the above embodiments of the present disclosure is a predetermined angle, the camera device can achieve image focusing on different working planes, thereby simultaneously acquiring cathode features and Clear image of anode features.
  • the camera device is installed at the target position of the battery winding machine, and is used to acquire the image information of the first detection area and the image information of the second detection area at the same time, wherein the target position is based on the predetermined angle It is determined that the battery winding machine is used to wind the cathode pole piece of the battery and the anode pole piece of the battery, the image information of the first detection area includes the cathode feature of the cathode pole piece, and the image information of the second detection area The information includes the anode characteristics of the anode pole pieces.
  • the target position of the camera device relative to the winding machine and the predetermined included angle of the camera device can enable the camera device to obtain clear images of the cathode features and the anode features simultaneously.
  • the predetermined angle and the target position make the first detection area and the second detection area simultaneously satisfy the Gaussian imaging formula.
  • the camera device is installed on the target position of the battery winding machine, and the new optical imaging method of adjusting the back focus makes the first detection area and the second detection area satisfy the Gaussian imaging formula at the same time, which can be realized in Images of different working planes in focus.
  • the first detection area and the second detection area simultaneously satisfy the Gaussian imaging formula: the distance between the first detection area and the center of the lens mirror plane, the distance between the center of the lens mirror plane and the first imaging point of the camera chip target plane
  • the distance and the focal length of the lens satisfy the Gaussian imaging formula; at the same time, the distance between the second detection area and the center of the lens mirror plane, the distance between the center of the lens mirror plane and the second imaging point on the target plane of the camera chip, and the focal length of the lens satisfy the Gaussian imaging formula.
  • the camera device further includes: a connection module disposed between the camera and the lens, wherein the connection module is configured to realize the connection and fixation of the camera and the lens.
  • the disclosure realizes the connection and fixation of the camera and the lens through the connection module, so that the disclosure can use a single camera to photograph the cathode features and the anode features. Continuous vibration will not shift the relative position of cathode and anode.
  • the connection module includes a lens connection surface and a camera connection surface, wherein the lens connection surface is the connection surface of the connection module and the lens, the camera connection surface is the connection surface of the connection module and the camera, and the lens connection surface and the camera connection surface
  • the included angle between them is equal to the predetermined included angle.
  • the included angle between the lens connecting surface and the camera connecting surface of the connection module is set as a predetermined included angle, so that while the fixed camera and the lens can be connected, the chip target surface plane of the camera and the mirror plane of the lens can be fixed. Angle fixation is set to a predetermined included angle.
  • the connecting module includes a first connecting piece and a second connecting piece, wherein the first connecting piece is used to realize the connection and fixation with the lens, and the connection and fixation with the second connecting piece, and the second connecting piece is used for The connection and fixation with the camera is realized; the upper surface of the first connecting piece is the lens connecting surface, the lower surface of the first connecting piece is connected with the upper surface of the second connecting piece, and the lower surface of the second connecting piece is the camera connecting surface.
  • the connecting module includes a first connecting part and a second connecting part, and the connection and fixing of the lens and the camera can be realized more conveniently through the two connecting parts.
  • the angle between the upper surface of the first connecting piece and the lower surface of the first connecting piece is equal to the predetermined angle; the upper surface of the second connecting piece is parallel to the lower surface of the second connecting piece.
  • the upper and lower surfaces of the first connecting part can be inclined, that is, the function of the first connecting part is to realize the connection and fixation of the lens and the second connecting part, and by placing the upper and lower surfaces of the first connecting part The included angle between them is equal to the predetermined included angle, so that the overall inclination of the connection module meets the predetermined included angle.
  • the function of the second connecting part is to realize the connection and fixation between the first connecting part and the camera.
  • the connecting module includes a first connecting piece, wherein the first connecting piece is used to realize the connection and fixation with the lens and the camera, the upper surface of the first connecting piece is the lens connection surface, and the first The lower surface of the connector is the camera connection surface.
  • the connecting module only includes the first connecting piece, and the upper and lower surfaces of the first connecting piece are inclined, that is, the function of the first connecting piece is to realize the connection and fixation of the lens and the camera, and The included angle between the upper and lower surfaces of the component is equal to the predetermined included angle, so that the overall inclination of the connection module meets the predetermined included angle.
  • the included angle between the upper surface and the lower surface of the first connecting member is adjustable
  • the camera device further includes a camera control device, and the camera control device is used to acquire the angle between the first detection area and the second detection area.
  • Positional relationship determining the predetermined angle and the target position according to the positional relationship between the first detection area and the second detection area, and adjusting the angle between the upper surface and the lower surface of the first connecting member to the Installing the camera device at the target position with a predetermined included angle.
  • the angle between the upper surface and the lower surface of the first connecting member is adjustable
  • the camera device further includes a camera control device
  • the camera control device passes through the position between the first detection area and the second detection area
  • the relationship determines the predetermined angle and the target position, and adjusts the camera device to the predetermined angle and the target position. In this way, the adjustment of the predetermined included angle can be realized according to the positional relationship between the first detection area and the second detection area.
  • the camera device further includes a camera control device, wherein the camera control device is used to instruct the manufacturing equipment to pre-prepare a plurality of first connectors with different angles between the upper surface and the lower surface, and obtain the first detection area and The positional relationship between the second detection areas, the predetermined angle and the target position are determined according to the positional relationship between the first detection area and the second detection area, and the angle between the upper surface and the lower surface is selected as the selected angle.
  • the first connecting part with the predetermined included angle is used as the first connecting part to be used, and the camera device is installed at the target position.
  • a plurality of first connectors with different angles between the upper surface and the lower surface are prepared in advance
  • the camera device further includes a camera control device
  • the camera control device passes between the first detection area and the second detection area
  • the positional relationship between the predetermined angle and the target position is determined, the first connecting piece whose angle between the upper surface and the lower surface is the predetermined angle is selected as the first connecting piece to be used, and the camera device is adjusted to the target location.
  • the first connectors with different predetermined included angles can be selected for adaptation.
  • the present disclosure provides a winder system, including a battery winder and the camera device in any one of the above embodiments.
  • Fig. 1 is a schematic structural diagram of a winder system provided by some embodiments of the present disclosure.
  • Fig. 2 is a schematic diagram of a winder system provided by other embodiments of the present disclosure.
  • Fig. 3 is a schematic diagram of the visual imaging principle of the lens of the camera device provided by some embodiments of the present disclosure.
  • Fig. 4 is a schematic diagram of assembly of a camera device provided by some embodiments of the present disclosure.
  • Fig. 5 is a schematic 3D exploded view of a camera device provided by some embodiments of the present disclosure.
  • FIG. 6 is a schematic diagram of assembly of a camera device provided by other embodiments of the present disclosure.
  • Fig. 7 is a schematic diagram of assembly of a camera device provided by some other embodiments of the present disclosure.
  • Camera 4 lens 1, first connecting part 2, second connecting part 3, camera control device 5;
  • the mirror plane center 111 of the lens, the first imaging point 411 of the target plane of the camera chip, and the second imaging point 411 of the target plane of the camera chip are identical to each other.
  • an embodiment means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the present disclosure.
  • the occurrences of this phrase in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. It is understood explicitly and implicitly by those skilled in the art that the embodiments described herein can be combined with other embodiments.
  • plural refers to two or more (including two), and similarly, “multiple groups” refers to two or more groups (including two groups), and “multiple pieces” refers to More than two pieces (including two pieces).
  • the production process of lithium-ion batteries will go through the winding process, that is, the anode pole piece, cathode pole piece, and diaphragm are wound into a complete half-cell; during the winding process, it is necessary to ensure that the anode pole piece, cathode pole piece 1.
  • the alignment of the diaphragm is within the range of ⁇ 0.5mm. If it exceeds this range, there will be a risk of short circuit in the battery cell. If a short circuit occurs during use, it may even cause fire and explosion. Therefore, in the winding process, more credible detection methods are needed to achieve the purpose of real-time monitoring, and to avoid the occurrence of batteries with oversized sizes flowing into the post-process.
  • the camera device in the related art includes two sets of camera components: the first camera component is used to detect the alignment of each winding material of the roll-in section of the electric core; the second camera component is used to detect the roll of the electric core.
  • the alignment of each winding material of the winding section requires two independent cameras to be correlated with each other in order to detect the cathode-anode alignment of the battery cell.
  • the present disclosure needs to design a camera structure with a stable structure that can use a single camera to capture the features of the cathode and anode.
  • the inventor also noticed that in the related art, there is a technical solution of using a single camera to photograph the characteristics of the cathode and anode under the premise that the winding machine uses a prismatic winding needle.
  • this technical solution can only be applied to prismatic rolling needles, that is, when the rolling position and the winding position are on the same working plane, and cannot be applied to circular rolling needles (most of the existing machine models, the rolling position and the winding position are on the same working plane. The winding position is not in the same working plane).
  • the tension of the prismatic needle will change periodically during the winding process, which is not conducive to the stability of the wound product.
  • the camera device disclosed in the embodiments of the present disclosure can be applied to but not limited to winding machine systems, and can be applied to but not limited to the winding process in the production process of batteries.
  • the camera device of the present disclosure can be adjusted by adjusting the back focus
  • the new optical imaging method can realize image focusing on different working planes.
  • FIG. 1 is a schematic structural diagram of a winder system provided by some embodiments of the present 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 in different working planes, it is required that the camera device can achieve focusing on different working planes at the same time.
  • the winding needles of the winding machine system of the present disclosure may also be prismatic winding needles or oval winding needles.
  • the battery winding machine 100 is used for winding the cathode electrode sheet of the battery and the anode electrode sheet of the battery.
  • the camera device 200 is used to detect and acquire the image information of the first detection area 300 and the image information of the second detection area 400, wherein the image information of the first detection area 300 is the image information of each winding material in the core roll-in section,
  • the image information of the second detection area 400 is the image information of each winding material of the cell winding section.
  • each layer of each winding material includes an anode pole piece 500 , a cathode pole piece 600 , a first separator 700 and a second separator 800 .
  • the image information of the first detection area 300 includes the cathode features of the cathode pole piece
  • the image information of the second detection area 400 includes the anode features of the anode pole piece.
  • FIG. 2 is a schematic diagram of a winder system provided by another embodiment of the present disclosure.
  • the winding machine system 1000 includes a battery winding machine 100 and a camera device 200.
  • the included angle of the plane 11 is a predetermined included angle, and the angle value of the predetermined included angle is greater than 0 degrees and less than or equal to 20 degrees.
  • the anode feature detection area and the cathode feature detection area are on different working planes, and the distance between different working planes is far beyond the depth of field of a conventional camera. Therefore, a conventional single camera cannot simultaneously Obtain clear images of both cathodic and anodic features.
  • the included angle between the chip target plane of the camera and the mirror plane of the lens is set to have a predetermined included angle. Therefore, the above-mentioned embodiments of the present disclosure can realize image focusing on different working planes, so that clear images of cathode features and anode features can be acquired simultaneously through a single camera.
  • the camera device 200 is installed at the target position of the battery winding machine 100 for simultaneously acquiring image information of the first detection area and image information of the second detection area, wherein , the target position is determined according to the predetermined angle, the battery winding machine is used to wind the cathode pole piece of the battery and the anode pole piece of the battery, and the image information of the first detection area includes the cathode pole piece
  • the image information of the second detection area includes the anode feature of the anode pole piece.
  • the target position of the camera device relative to the winding machine and the predetermined included angle of the camera device can enable the camera device to obtain clear images of the cathode features and the anode features simultaneously.
  • the working distance between the camera device 200 and the battery winding machine 100 may be 260 mm; and the distance between the camera device 200 and the core of the winding core in the vertical direction (height direction) may be 40 mm.
  • the imaging accuracy of the camera device for the first detection area may be 0.03 mm/px
  • the imaging accuracy of the camera device for the second detection area may be 0.023 mm/px.
  • the predetermined angle and the target position make the first detection area and the second detection area simultaneously satisfy the Gaussian imaging formula.
  • the camera device is installed on the target position of the battery winding machine, and the new optical imaging method of adjusting the back focus makes the first detection area and the second detection area satisfy the Gaussian imaging formula at the same time, which can be realized in Images of different working planes in focus.
  • FIG. 3 is a schematic diagram of a visual imaging principle of a lens of a camera device provided by some embodiments of the present disclosure.
  • the distance S1' between the first detection area 300 and the lens mirror plane center 111, the distance S2' between the lens mirror plane center 111 and the first imaging point 411 of the camera chip target plane, and the lens focal length f satisfy Gauss Imaging formula, referring to formula (1); Simultaneously the distance S1 " of the second detection region and lens mirror plane center 111 ", the distance S2 " of the second imaging point 412 of lens mirror plane center 111 and camera chip target surface plane, and lens focal length f satisfies the Gaussian imaging formula, see formula (2).
  • the back focus can be adjusted to achieve focused imaging at different working distances.
  • novel optical imaging method of the above-mentioned embodiments of the present disclosure can realize image focusing on different working planes.
  • the above-mentioned embodiments of the present disclosure can be compatible with circular needles, and the production capacity of the circular needles is 2-3 times that of the prismatic needles.
  • the production capacity of round needles is 3 times that of square or oval needles
  • the winding speed of square or oval needles is 600-700mm/s
  • the winding speed of round needles is 2000-2500mm/s s.
  • the camera device further includes: a connection module disposed between the camera and the lens, wherein the connection module is configured to realize the connection and fixation of the camera and the lens.
  • the disclosure realizes the connection and fixation of the camera and the lens through the connection module, so that the disclosure can use a single camera to photograph the cathode features and the anode features. Continuous vibration will not shift the relative position of cathode and anode.
  • the connection module includes a lens connection surface and a camera connection surface, wherein the lens connection surface is the connection surface of the connection module and the lens, the camera connection surface is the connection surface of the connection module and the camera, and the lens connection surface and the camera connection surface
  • the included angle between them is equal to the predetermined included angle.
  • the included angle between the lens connecting surface and the camera connecting surface of the connection module is set as a predetermined included angle, so that while the fixed camera and the lens can be connected, the chip target surface plane of the camera and the mirror plane of the lens can be fixed. Angle fixation is set to a predetermined included angle.
  • FIG. 4 is an assembly diagram of a camera device provided by some embodiments of the present disclosure.
  • Fig. 5 is a schematic 3D exploded view of a camera device provided by some embodiments of the present disclosure. In some embodiments, as shown in FIG. 4 and FIG.
  • the camera device may include a lens 1, a camera 4, and a connecting module arranged between the camera and the lens, wherein the connecting module includes a first connecting member 2 and a second Connecting piece 3, wherein, the first connecting piece 2 is used to realize the connection and fixation with the lens 1, and the connection and fixation with the second connecting piece 3, and the second connecting piece 3 is used to realize the connection and fixing with the camera 4; the first connection The upper surface of the part 2 is the lens connecting surface, the lower surface of the first connecting part 2 is connected with the upper surface of the second connecting part 3, and the lower surface of the second connecting part 3 is the camera connecting surface.
  • the connecting module includes a first connecting piece 2 and a second connecting piece 3 , and the connection and fixing of the lens and the camera can be realized more conveniently through the two connecting pieces.
  • the angle between the upper surface of the first connecting part 2 and the lower surface of the first connecting part 2 is equal to the predetermined angle;
  • the upper surface is parallel to the lower surface of the second connecting piece 3 .
  • the upper and lower surfaces of the first connecting part 2 can be inclined, that is, the function of the first connecting part 2 is to realize the connection and fixation of the lens and the second connecting part 3, and by connecting the first connecting part 2
  • the angle between the upper and lower surfaces of the upper and lower surfaces is equal to the predetermined angle, so that the overall inclination of the connection module meets the predetermined angle.
  • the function of the second connecting part 3 is to realize the connection and fixation between the first connecting part 2 and the camera 4 .
  • the function of the second connecting part 3 is mainly an intermediate hub connecting the connecting part 2 and the camera 4 .
  • the external thread of the lens 1 is connected and fixed through the internal thread of the first connecting part 2; Screw holes, threads, and screws are connected and fixed; the second connecting piece 3 and the camera 4 are connected and fixed through small screw holes, threads, and screws around the through hole.
  • the above embodiments of the present disclosure can use a single camera to capture the characteristics of the cathode and anode. Due to hardware design reasons, the above embodiments of the present disclosure will not shift the relative positions of the cathode and anode due to the continuous vibration of the machine during the long-term production process. .
  • the above-mentioned embodiments of the present disclosure can realize focusing of images on different working planes through a novel optical imaging method of adjusting the back focus.
  • the corresponding relationship between the two working planes in the above-mentioned embodiments of the present disclosure is stable and unchanged.
  • the camera device may include a lens 1, a camera 4, and a connecting module disposed between the camera and the lens, wherein the connecting module includes a first connecting member 2, wherein the first connecting The part 2 is used to realize the connection and fixation with the lens and the camera, the upper surface of the first connecting part 2 is the lens connecting surface, and the lower surface of the first connecting part 2 is the camera connecting surface.
  • the connecting module only includes the first connecting piece 2, and the upper and lower surfaces of the first connecting piece 2 are inclined, that is, the function of the first connecting piece 2 is to realize the connection and fixing of the lens and the camera, and by
  • the included angle between the upper and lower surfaces of the first connecting member 2 is equal to the predetermined included angle, so that the overall inclination of the connection module satisfies the predetermined included angle.
  • the embodiment in Fig. 6 reduces the number of connecting parts.
  • the first connecting member 2 can be directly connected to the camera 4 through small screw holes, threads, screws around the through hole.
  • the corresponding relationship between the two different working planes in the imaging of the camera in the above embodiments of the present disclosure depends on the size of the staggered angle of the link between the camera and the lens relative to the camera lens.
  • FIG. 7 is a schematic assembly diagram of a camera device provided by some other embodiments of the present disclosure.
  • the camera device also includes a camera control device 5, the camera control device 5 is connected to the first connector 2, the angle between the upper surface and the lower surface of the first connector 2 is adjustable, the camera device also includes Camera control device.
  • the camera control device 5 is configured to obtain the positional relationship between the first detection area and the second detection area, and determine the predetermined angle and the target position according to the positional relationship between the first detection area and the second detection area, The angle between the upper surface and the lower surface of the first connecting member 2 is adjusted to the predetermined angle, and the camera device is installed at the target position.
  • the angle between the upper surface and the lower surface of the first connecting member 2 is adjustable
  • the camera device further includes a camera control device.
  • the positional relationship determines the predetermined angle and the target position, and adjusts the camera device to the predetermined angle and the target position. In this way, the adjustment of the predetermined included angle can be realized according to the positional relationship between the first detection area and the second detection area.
  • the above embodiments of the present disclosure can adopt a specific structure so that the included angle between the upper surface and the lower surface of the first connecting member 2 can be adjusted.
  • the above-mentioned embodiments of the present disclosure may adopt a specific structure so that the included angle between the lens connection surface and the camera connection surface of the connection module is adjustable.
  • the connecting module (linking mechanism) between the single camera and the lens can be an adjustable mechanism, which can perform different compatible adjustments according to different needle diameters, and the angle range of the predetermined included angle can be 0-20 degrees .
  • the camera device further includes a camera control device 5 connected to the first connector 2, and the camera control device 5 can be used to instruct the manufacturing equipment to prepare multiple
  • the first connecting member 2 with different angles between the upper surface and the lower surface obtains the positional relationship between the first detection area and the second detection area, and determines the positional relationship between the first detection area and the second detection area.
  • the predetermined angle and the target position select the first connecting piece 2 whose angle between the upper surface and the lower surface is the predetermined angle as the first connecting piece 2 to be used, and install the camera device on the target Location.
  • a plurality of first connectors 2 with different angles between the upper surface and the lower surface can be prepared in advance, and the camera control device determines the positional relationship between the first detection area and the second detection area.
  • the predetermined angle and the target position select the first connector 2 with the angle between the upper surface and the lower surface as the predetermined angle as the first connector 2 to be used, and adjust the camera device to the target location. Therefore, in the above embodiments of the present disclosure, according to different needle diameters, the first connecting member with different included angles can be selected for different compatible adjustments, and the angle range of the predetermined included angle can be 0-20 degrees.

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Abstract

一种相机装置（200），包括：相机（210）和镜头（220），相机（210）的芯片靶面平面（41）与镜头（220）的镜平面（11）的夹角为预定夹角，预定夹角的角度值大于0度且小于等于20度。该相机装置（200）适用于卷绕机系统（1000），可以实现在不同工作平面的图像对焦，由此可以通过单台相机同时获取阴极特征和阳极特征的清晰图像。

Description

相机装置和卷绕机系统 技术领域
本公开涉及电池制造技术领域，特别是涉及一种相机装置和卷绕机系统。
背景技术
电池卷绕机在电池卷绕的过程中，需要检测电芯的各卷绕材料每一层的阴极、阳极、第一隔膜、第二隔膜的卷绕位置，对于超出规定位置的卷绕电芯进行报警剔除。需要在卷绕机上使用CCD(Charge-coupled Device，电荷耦合元件)设备对极片与隔膜之间的错位进行实时监控，并将计算结果反馈给上位机软件，保证电芯产品关键尺寸等指标满足产品生产标准。
相关技术需要采用两个独立的相机拍摄阴极特征和阳极特征，如两个相机在长时间的生产过程中因为机台持续的震动发生了相对位置或者角度变化，则会导致待检特征在图像中发生对应的偏移，从而导致越来越大的累积误差。
发明内容
鉴于上述问题，本公开提供一种相机装置和卷绕机系统，可以使用单相机即可拍摄阴极特征和阳极特征。
第一方面，本公开提供了一种相机装置，包括：相机和镜头，其中，相机的芯片靶面平面与镜头的镜平面的夹角为预定夹角，所述预定夹角的角度值大于0度且小于等于20度。
本公开实施例的技术方案中，电池卷绕机卷绕过程中，阳极特征检测区域和阴极特征检测区域处于不同的工作平面，不同工作平面距 离(例如，100mm)远超常规相机景深(例如，5-15mm)，由此常规单相机无法同时获取阴极特征和阳极特征的清晰图像。由于本公开上述实施例的相机的芯片靶面平面与镜头的镜平面的夹角为预定夹角，使得相机装置可以实现在不同工作平面的图像对焦，由此可以通过单相机同时获取阴极特征和阳极特征的清晰图像。
在一些实施例中，相机装置安装于电池卷绕机的目标位置，用于同时获取第一检测区域的图像信息和第二检测区域的图像信息，其中，所述目标位置根据所述预定夹角确定，所述电池卷绕机用于将电池的阴极极片和电池的阳极极片卷绕，所述第一检测区域的图像信息包括阴极极片的阴极特征，所述第二检测区域的图像信息包括阳极极片的阳极特征。相机装置相对于卷绕机的目标位置以及相机装置的预定夹角可以使得相机装置同时获取阴极特征和阳极特征的清晰图像。
在一些实施例中，所述预定夹角和所述目标位置使得第一检测区域和第二检测区域同时满足高斯成像公式。本公开通过逐渐调整，将相机装置安装于电池卷绕机的目标位置，通过调节后焦距的新型的光学成像方式，使得第一检测区域和第二检测区域可以同时满足高斯成像公式，可实现在不同工作平面的图像对焦。
在一些实施例中，第一检测区域和第二检测区域同时满足高斯成像公式为：第一检测区域与镜头镜平面中心的距离、镜头镜平面中心与相机芯片靶面平面的第一成像点的距离、和镜头焦距满足高斯成像公式；同时第二检测区域与镜头镜平面中心的距离、镜头镜平面中心与相机芯片靶面平面的第二成像点的距离、和镜头焦距满足高斯成像公式。
在一些实施例中，相机装置还包括：设置在相机和镜头之间的连接模块，其中，所述连接模块，用于实现相机和镜头的连接固定。本公开通过连接模块实现相机和镜头的连接固定，由此本公开可以使用单相机即可拍摄阴极特征和阳极特征，同时因为硬件设计中连接模块的原因，使得长时间的生产过程中因为机台持续的震动不会对阴阳极的相对位置发生偏移。
在一些实施例中，连接模块包括镜头连接表面和相机连接表面，其中，镜头连接表面为连接模块和镜头的连接表面，相机连接表面为连接模块和相机的连接表面，镜头连接表面和相机连接表面之间的夹角等于所述预定夹角。本公开将连接模块的镜头连接表面和相机连接表面之间的夹角设置为预定夹角，由此可以在连接固定相机和镜头的同时，将相机的芯片靶面平面与镜头的镜平面的夹角固定设置为预定夹角。
在一些实施例中，连接模块包括第一连接件和第二连接件，其中，第一连接件用于实现与镜头的连接固定，以及与第二连接件的连接固定，第二连接件用于实现与相机的连接固定；第一连接件的上表面为镜头连接表面，第一连接件的下表面与第二连接件的上表面连接，第二连接件的下表面为相机连接表面。本公开上述一些实施例中，连接模块包括第一连接件和第二连接件，通过两个连接件可以更方便地实现镜头和相机的连接固定。
在一些实施例中，第一连接件的上表面与第一连接件的下表面之间的夹角等于所述预定夹角；第二连接件的上表面与第二连接件的下表面平行。本公开一些实施例中，可以将第一连接件的上下表面进行倾斜设置，即第一连接件的作用是实现镜头与第二连接件的连接固定，以及通过将第一连接件的上下表面之间的夹角等于所述预定夹角，使得连接模块整体倾斜程度满足预定夹角。本公开一些实施例中，第二连接件的作用是实现第一连接件和相机的连接固定。
在一些实施例中，连接模块包括第一连接件，其中，第一连接件用于实现与镜头的连接固定，以及与相机的连接固定，第一连接件的上表面为镜头连接表面，第一连接件的下表面为相机连接表面。本公开一些实施例中，连接模块只包括第一连接件，将第一连接件的上下表面进行倾斜设置，即第一连接件的作用是实现镜头与相机的连接固定，以及通过将第一连接件的上下表面之间的夹角等于所述预定夹角，使得连接模块整体倾斜程度满足预定夹角。
在一些实施例中，第一连接件的上表面与下表面之间的夹角可调节，相机装置还包括相机控制设备，相机控制设备用于获取第一检测区域和第二检测区域之间的位置关系，根据第一检测区域和第二检测区域之间的位置关系确定所述预定夹角和所述目标位置，将第一连接件的上表面与下表面之间的夹角调整为所述预定夹角，将相机装置安装于所述目标位置。本公开一些实施例中，第一连接件的上表面与下表面之间的夹角可调，相机装置还包括相机控制设备，相机控制设备通过第一检测区域和第二检测区域之间的位置关系确定所述预定夹角和所述目标位置，并将相机装置调整到所述预定夹角和所述目标位置。由此可以实现根据第一检测区域和第二检测区域之间的位置关系，对预定夹角的调整。
在一些实施例中，相机装置还包括相机控制设备，其中，相机控制设备用于指示制造设备预先制备多个上表面与下表面之间夹角不同的第一连接件，获取第一检测区域和第二检测区域之间的位置关系，根据第一检测区域和第二检测区域之间的位置关系确定所述预定夹角和所述目标位置，选择上表面与下表面之间的夹角为所述预定夹角的第一连接件作为待使用第一连接件，将相机装置安装于所述目标位置。本公开一些实施例中，预先制备多个上表面与下表面之间夹角不同的第一连接件，相机装置还包括相机控制设备，相机控制设备通过第一检测区域和第二检测区域之间的位置关系确定所述预定夹角和所述目标位置，选择上表面与下表面之间的夹角为所述预定夹角的第一连接件作为待使用第一连接件，并将相机装置调整到所述目标位置。由此可以实现根据第一检测区域和第二检测区域之间的位置关系，选择不同预定夹角的第一连接件进行适配。
第二方面，本公开提供了一种卷绕机系统，包括电池卷绕机和如上述任一实施例中的相机装置。
上述说明仅是本公开技术方案的概述，为了能够更清楚了解本公开的技术手段，而可依照说明书的内容予以实施，并且为了让本公开 的上述和其它目的、特征和优点能够更明显易懂，以下特举本公开的具体实施方式。
附图说明
为了更清楚地说明本公开实施例的技术方案，下面将对本公开实施例中所需要使用的附图作简单地介绍，显而易见地，下面所描述的附图仅仅是本公开的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据附图获得其他的附图。
图1为本公开一些实施例提供的卷绕机系统的结构示意图。
图2为本公开另一些实施例提供的卷绕机系统的示意图。
图3为本公开一些实施例提供的相机装置镜头的视觉成像原理示意图。
图4为本公开一些实施例提供的相机装置的装配示意图。
图5为本公开一些实施例提供的相机装置的3D爆炸示意图。
图6为本公开另一些实施例提供的相机装置的装配示意图。
图7为本公开又一些实施例提供的相机装置的装配示意图。
在附图中，附图并未按照实际的比例绘制。具体实施方式中的附图标号如下：
车辆1000；
电池卷绕机100，相机装置200，第一检测区域300，第二检测区域400，阳极极片500、阴极极片600、第一隔膜700和第二隔膜800；
相机4，镜头1，第一连接件2，第二连接件3，相机控制设备5；
相机芯片靶面平面41，镜头镜平面11；
镜头镜平面中心111，相机芯片靶面平面的第一成像点411，相机芯片靶面平面的第二成像点411。
具体实施方式
下面将结合附图对本公开技术方案的实施例进行详细的描述。以下实施例仅用于更加清楚地说明本公开的技术方案，因此只作为示例，而不能以此来限制本公开的保护范围。
除非另有定义，本文所使用的所有的技术和科学术语与属于本公开的技术领域的技术人员通常理解的含义相同；本文中所使用的术语只是为了描述具体的实施例的目的，不是旨在于限制本公开；本公开的说明书和权利要求书及上述附图说明中的术语“包括”和“具有”以及它们的任何变形，意图在于覆盖不排他的包含。
在本公开实施例的描述中，技术术语“第一”“第二”等仅用于区别不同对象，而不能理解为指示或暗示相对重要性或者隐含指明所指示的技术特征的数量、特定顺序或主次关系。在本公开实施例的描述中，“多个”的含义是两个以上，除非另有明确具体的限定。
在本文中提及“实施例”意味着，结合实施例描述的特定特征、结构或特性可以包含在本公开的至少一个实施例中。在说明书中的各个位置出现该短语并不一定均是指相同的实施例，也不是与其它实施例互斥的独立的或备选的实施例。本领域技术人员显式地和隐式地理解的是，本文所描述的实施例可以与其它实施例相结合。
在本公开实施例的描述中，术语“和/或”仅仅是一种描述关联对象的关联关系，表示可以存在三种关系，例如A和/或B，可以表示：单独存在A，同时存在A和B，单独存在B这三种情况。另外，本文中字符“/”，一般表示前后关联对象是一种“或”的关系。
在本公开实施例的描述中，术语“多个”指的是两个以上(包括两个)，同理，“多组”指的是两组以上(包括两组)，“多片”指的是两片以上(包括两片)。
在本公开实施例的描述中，技术术语“中心”“纵向”“横向”“长度”“宽度”“厚度”“上”“下”“前”“后”“左”“右”“竖直”“水平”“顶”“底”“内”“外”“顺时针”“逆时 针”“轴向”“径向”“周向”等指示的方位或位置关系为基于附图所示的方位或位置关系，仅是为了便于描述本公开实施例和简化描述，而不是指示或暗示所指的装置或元件必须具有特定的方位、以特定的方位构造和操作，因此不能理解为对本公开实施例的限制。
在本公开实施例的描述中，除非另有明确的规定和限定，技术术语“安装”“相连”“连接”“固定”等术语应做广义理解，例如，可以是固定连接，也可以是可拆卸连接，或成一体；也可以是机械连接，也可以是电连接；可以是直接相连，也可以通过中间媒介间接相连，可以是两个元件内部的连通或两个元件的相互作用关系。对于本领域的普通技术人员而言，可以根据具体情况理解上述术语在本公开实施例中的具体含义。
目前锂离子电池的生产制作过程，会经过卷绕工序，即将阳极极片、阴极极片、隔膜卷绕成一支完整的半电芯；在卷绕过程中，需要保证阳极极片、阴极极片、隔膜的对齐度在±0.5mm范围内，超过这个范围就使得电芯有短路的风险，如果在使用中出现短路的情况，甚至可能引起火灾和爆炸。所以在卷绕过程中就需要有比较可信的检测手段来达到实时监控的目的，避免出现尺寸超限的电芯流入后工序。
本发明人注意到，电芯卷绕过程中需要同时检测第一检测区域(电芯入卷段)各卷绕材料的对齐度、和第二检测区域(电芯卷绕段)各卷绕材料的对齐度。由于第一检测区域和第二检测区域处于不同的工作平面，因此需要相机装置可以同时实现不同工作平面的对焦。
相关技术的相机装置包括两组相机组件：第一相机组件，用于检测所述电芯的入卷段的各卷绕材料的对齐度；第二相机组件，用于检测所述电芯的卷绕段的各卷绕材料的对齐度。该相关技术的方案需要两个独立的相机互相关联，才能检测出电芯的阴阳极对齐度。
发明人注意到，该相关技术的技术方案中需要用两个独立的相机互相关联，如两个相机在长时间的生产过程中因为机台持续的震动发生了相对位置或者角度变化，则会导致待检特征在图像中发生对应的偏 移，从而导致越来越大的累积误差。该技术方案存在振动的机台上，相机固定的稳定性无法完全保障，即依赖双相机之间坐标系标定的方案天生存在严重的稳定性风险。由此本公开需要设计一种结构稳定的，可以采用单相机拍摄阴阳极特征的相机结构。
发明人还注意到，相关技术还存在一种在卷绕机使用棱形卷针前提下，使用单相机拍摄阴阳极特征的技术方案。但是，该技术方案只能适用于棱形卷针，即入卷位置与卷绕位置在同一个工作平面的情况，无法适用于圆形卷针(现有大部分机台型号，入卷位置与卷绕位置不在同一个工作平面的情况)。该技术方案中，棱形卷针在卷绕过程中张力会周期性变化，不利于卷绕产品的稳定性。
由此，需要设计一种结构稳定、可以采用单相机拍摄入卷位置与卷绕位置不在同一个工作平面的阴阳极特征的相机装置。
本公开实施例公开的相机装置可以适用于但不限用于卷绕机系统，可以适用于但不限用于电池的生产制作过程中的卷绕工序，本公开相机装置可以通过调节后焦距的新型的光学成像方式，可实现在不同工作平面的图像对焦。
以下实施例为了方便说明，以本公开一些实施例的一种用于电池的生产制作过程中卷绕机系统为例进行说明。
请参照图1，图1为本公开一些实施例提供的卷绕机系统的结构示意图。卷绕机系统1000包括电池卷绕机100和相机装置200，其中，电池卷绕机100的卷针为圆形卷针。由于第一检测区域和第二检测区域处于不同的工作平面，因此需要相机装置可以同时实现不同工作平面的对焦。
在本公开一些实施例中，本公开卷绕机系统的卷针也可以为棱形卷针或椭圆形卷针。
电池卷绕机100，用于将电池的阴极极片和电池的阳极极片卷绕。
相机装置200，用于检测获取第一检测区域300的图像信息和第二检测区域400的图像信息，其中，第一检测区域300的图像信息为电芯入卷段各卷绕材料的图像信息，所述第二检测区域400的图像信息为电芯卷绕段各卷绕材料的图像信息。如图2所示，各卷绕材料每一层包括阳极极片500、阴极极片600、第一隔膜700和第二隔膜800。
在本公开一些实施例中，如图1所示，所述第一检测区域300的图像信息包括阴极极片的阴极特征，所述第二检测区域400的图像信息包括阳极极片的阳极特征。
请参照图2，图2为本公开另一些实施例提供的卷绕机系统的示意图。卷绕机系统1000包括电池卷绕机100和相机装置200，如图2所示，本公开相机装置可以包括：相机4和镜头1，其中，相机4的芯片靶面平面41与镜头1的镜平面11的夹角为预定夹角，所述预定夹角的角度值大于0度且小于等于20度。
本公开实施例的技术方案中，电池卷绕机卷绕过程中，阳极特征检测区域和阴极特征检测区域处于不同的工作平面，不同工作平面距离远超常规相机景深，由此常规单相机无法同时获取阴极特征和阳极特征的清晰图像。而本公开上述实施例将相机的芯片靶面平面与镜头的镜平面的夹角设置为有一个预定夹角。由此本公开上述实施例可以实现在不同工作平面的图像对焦，由此可以通过单相机同时获取阴极特征和阳极特征的清晰图像。
在一些实施例中，如图1和图2所示，相机装置200安装于电池卷绕机100的目标位置，用于同时获取第一检测区域的图像信息和第二检测区域的图像信息，其中，所述目标位置根据所述预定夹角确定，所述电池卷绕机用于将电池的阴极极片和电池的阳极极片卷绕，所述第一检测区域的图像信息包括阴极极片的阴极特征，所述第二检测区域的图像信息包括阳极极片的阳极特征。相机装置相对于卷绕机的目标位置以及相机装置的预定夹角可以使得相机装置同时获取阴极特征和阳极特征的清晰图像。
在本公开一些实施例中，相机装置200与电池卷绕机100的工作距离可以为260mm；而相机装置200在垂直方向(高度方向)与卷芯轴芯的距离可以为40mm。
在本公开一些实施例中，相机装置对第一检测区域的成像精度可以为0.03mm/px，相机装置对第二检测区域的成像精度可以为0.023mm/px。
在一些实施例中，如图2所示，所述预定夹角和所述目标位置使得第一检测区域和第二检测区域同时满足高斯成像公式。本公开通过逐渐调整，将相机装置安装于电池卷绕机的目标位置，通过调节后焦距的新型的光学成像方式，使得第一检测区域和第二检测区域可以同时满足高斯成像公式，可实现在不同工作平面的图像对焦。
请参照图3，图3为本公开一些实施例提供的相机装置镜头的视觉成像原理示意图。如图3所示，第一检测区域300与镜头镜平面中心111的距离S1’、镜头镜平面中心111与相机芯片靶面平面的第一成像点411的距离S2’、和镜头焦距f满足高斯成像公式，参见公式(1)；同时第二检测区域与镜头镜平面中心111的距离S1”、镜头镜平面中心111与相机芯片靶面平面的第二成像点412的距离S2”、和镜头焦距f满足高斯成像公式，参见公式(2)。
1/S1’+1/S2’＝1/f    (1)
1/S1”+1/S2”＝1/f    (2)
本公开上述实施例相机的芯片靶面平面与镜头的镜平面之间的特定夹角，由此使得第一检测区域和第二检测区域可以同时满足高斯成像公式，可实现在不同工作平面的图像对焦。
本公开上述实施例当需要同一块凸透镜的不同的物距成像时候，调节后焦距即可实现不同工作距离的聚焦成像。
本公开上述实施例新型的光学成像方式，可实现在不同工作平面的图像对焦。
本公开上述实施例可以兼容圆形卷针，而圆形卷针的产能是棱形卷针的2-3倍。例如：圆形卷针产能是方形或椭圆形卷针的3倍，方形或椭圆形卷针的卷绕线速度为600-700mm/s，圆形卷针的卷绕线速度为2000-2500mm/s。
在一些实施例中，相机装置还包括：设置在相机和镜头之间的连接模块，其中，所述连接模块，用于实现相机和镜头的连接固定。本公开通过连接模块实现相机和镜头的连接固定，由此本公开可以使用单相机即可拍摄阴极特征和阳极特征，同时因为硬件设计中连接模块的原因，使得长时间的生产过程中因为机台持续的震动不会对阴阳极的相对位置发生偏移。
在一些实施例中，连接模块包括镜头连接表面和相机连接表面，其中，镜头连接表面为连接模块和镜头的连接表面，相机连接表面为连接模块和相机的连接表面，镜头连接表面和相机连接表面之间的夹角等于所述预定夹角。本公开将连接模块的镜头连接表面和相机连接表面之间的夹角设置为预定夹角，由此可以在连接固定相机和镜头的同时，将相机的芯片靶面平面与镜头的镜平面的夹角固定设置为预定夹角。
请参照图4和图5，图4为本公开一些实施例提供的相机装置的装配示意图。图5为本公开一些实施例提供的相机装置的3D爆炸示意图。在一些实施例中，如图4和图5所示，相机装置可以包括镜头1、相机4、以及设置在相机和镜头之间的连接模块，其中，连接模块包括第一连接件2和第二连接件3，其中，第一连接件2用于实现与镜头1的连接固定，以及与第二连接件3的连接固定，第二连接件3用于实现与相机4的连接固定；第一连接件2的上表面为镜头连接表面，第一连接件2的下表面与第二连接件3的上表面连接，第二连接件3的下表面为相机连接表面。本公开上述一些实施例中，连接模块包括第一连接件2和第二连接件3，可以通过两个连接件可以更方便地实现镜头和相机的连接固定。
在一些实施例中，如图4和图5所示，第一连接件2的上表面与第一连接件2的下表面之间的夹角等于所述预定夹角；第二连接件3的上表面与第二连接件3的下表面平行。本公开一些实施例中，可以将第一连接件2的上下表面进行倾斜设置，即第一连接件2的作用是实现镜头与第二连接件3的连接固定，以及通过将第一连接件2的上下表面之间的夹角等于所述预定夹角，使得连接模块整体倾斜程度满足预定夹角。本公开一些实施例中，第二连接件3的作用是实现第一连接件2和相机4的连接固定。本公开一些实施例中，第二连接件3的作用主要是连接连接件2与相机4的中间枢纽。
在一些实施例中，如图4和图5所示，镜头1的外螺纹，通过第一连接件2的内螺纹连接固定；第一连接件2和第二连接件3通过通孔四周小的螺孔、螺纹、螺钉连接固定；第二连接件3和相机4通过通孔四周小的螺孔、螺纹、螺钉连接固定。
本公开上述实施例使用单相机即可拍摄阴阳极特征，因为硬件设计原因，本公开上述实施例不会长时间的生产过程中因为机台持续的震动不会对阴阳极的相对位置发生偏移。
本公开上述实施例通过调节后焦距的新型的光学成像方式，可实现在不同工作平面的图像对焦。本公开上述实施例两工作平面的对应关系稳定不变。
请参照图6，图6为本公开另一些实施例提供的相机装置的装配示意图。在一些实施例中，如图6所示，相机装置可以包括镜头1、相机4、以及设置在相机和镜头之间的连接模块，其中，连接模块包括第一连接件2，其中，第一连接件2用于实现与镜头的连接固定，以及与相机的连接固定，第一连接件2的上表面为镜头连接表面，第一连接件2的下表面为相机连接表面。本公开一些实施例中，连接模块只包括第一连接件2，将第一连接件2的上下表面进行倾斜设置，即第一连接件2的作用是实现镜头与相机的连接固定，以及通过将第一连接件2的 上下表面之间的夹角等于所述预定夹角，使得连接模块整体倾斜程度满足预定夹角。
图6实施例与图4和图5实施例相比，减少了连接件的数量。在一些实施例中，如图6所示，在第一连接件2设计足够复杂的前提下，第一连接件2可通过通孔四周小的螺孔、螺纹、螺钉和相机4直接连接。
本公开上述实施例相机成像中两不同工作平面的对应关系取决于相机与镜头之间的链接件对相机镜头所错开角度的大小。
本公开上述实施例相机成像中两不同工作平面的对应关系不会因为外界的震动，或者相机长时间运行而其安装位置偏移而发生变化。
请参照图7，图7为本公开又一些实施例提供的相机装置的装配示意图。如图7所示，相机装置还包括相机控制设备5，相机控制设备5与第一连接件2连接，第一连接件2的上表面与下表面之间的夹角可调节，相机装置还包括相机控制设备。相机控制设备5，用于获取第一检测区域和第二检测区域之间的位置关系，根据第一检测区域和第二检测区域之间的位置关系确定所述预定夹角和所述目标位置，将第一连接件2的上表面与下表面之间的夹角调整为所述预定夹角，将相机装置安装于所述目标位置。本公开上述实施例中，第一连接件2的上表面与下表面之间的夹角可调，相机装置还包括相机控制设备，相机控制设备通过第一检测区域和第二检测区域之间的位置关系确定所述预定夹角和所述目标位置，并将相机装置调整到所述预定夹角和所述目标位置。由此可以实现根据第一检测区域和第二检测区域之间的位置关系，对预定夹角的调整。
本公开上述实施例可以采用特定结构使得第一连接件2的上表面与下表面之间的夹角可调。或者本公开上述实施例可以采用采用特定结构使得连接模块的镜头连接表面与相机连接表面之间的夹角可调。
本公开上述实施例中单相机与镜头的连接模块(链接机构)可以为可调节的机构，可以根据不同的卷针直径，进行不同的兼容调节，预定夹角的角度范围可以为0-20度。
在本公开另一些实施例中，如图7所示，相机装置还包括相机控制设备5，相机控制设备5与第一连接件2连接，相机控制设备5可以用于指示制造设备预先制备多个上表面与下表面之间夹角不同的第一连接件2，获取第一检测区域和第二检测区域之间的位置关系，根据第一检测区域和第二检测区域之间的位置关系确定所述预定夹角和所述目标位置，选择上表面与下表面之间的夹角为所述预定夹角的第一连接件2作为待使用第一连接件2，将相机装置安装于所述目标位置。
由此本公开上述实施例中可以预先制备多个上表面与下表面之间夹角不同的第一连接件2，相机控制设备通过第一检测区域和第二检测区域之间的位置关系确定所述预定夹角和所述目标位置，选择上表面与下表面之间的夹角为所述预定夹角的第一连接件2作为待使用第一连接件2，并将相机装置调整到所述目标位置。由此本公开上述实施例可以根据不同的卷针直径，选择不同夹角的第一连接件进行不同的兼容调节，预定夹角的角度范围可以为0-20度。
虽然已经参考优选实施例对本公开进行了描述，但在不脱离本公开的范围的情况下，可以对其进行各种改进并且可以用等效物替换其中的部件。尤其是，只要不存在结构冲突，各个实施例中所提到的各项技术特征均可以任意方式组合起来。本公开并不局限于文中公开的特定实施例，而是包括落入权利要求的范围内的所有技术方案。

Claims (12)

  1. 一种相机装置，包括：相机和镜头，其中，相机的芯片靶面平面与镜头的镜平面的夹角为预定夹角，所述预定夹角的角度值大于0度且小于等于20度。
  2. 根据权利要求1所述的相机装置，其中，所述相机装置安装于电池卷绕机的目标位置，用于同时获取第一检测区域的图像信息和第二检测区域的图像信息，其中，所述目标位置根据所述预定夹角确定，所述电池卷绕机用于将电池的阴极极片和电池的阳极极片卷绕，所述第一检测区域的图像信息包括阴极极片的阴极特征，所述第二检测区域的图像信息包括阳极极片的阳极特征。
  3. 根据权利要求2所述的相机装置，其中，所述预定夹角和所述目标位置使得第一检测区域和第二检测区域同时满足高斯成像公式。
  4. 根据权利要求3所述的相机装置，其中，第一检测区域和第二检测区域同时满足高斯成像公式为：第一检测区域与镜头镜平面中心的距离、镜头镜平面中心与相机芯片靶面平面的第一成像点的距离、和镜头焦距满足高斯成像公式；同时第二检测区域与镜头镜平面中心的距离、镜头镜平面中心与相机芯片靶面平面的第二成像点的距离、和镜头焦距满足高斯成像公式。
  5. 根据权利要求1所述的相机装置，还包括：设置在相机和镜头之间的连接模块，其中，连接模块，用于实现相机和镜头的连接固定。
  6. 根据权利要求5所述的相机装置，其中，连接模块包括镜头连接表面和相机连接表面，其中，镜头连接表面为连接模块和镜头的连接表面，相机连接表面为连接模块和相机的连接表面，镜头连接表面和相机连接表面之间的夹角等于所述预定夹角。
  7. 根据权利要求6所述的相机装置，其中，连接模块包括第一连接件和第二连接件，其中，第一连接件用于实现与镜头的连接固定，以及与第二连接件的连接固定，第二连接件用于实现与相机的连接固定；第一连接件的上表面为镜头连接表面，第一连接件的下表面与第二连接件的上表面连接，第二连接件的下表面为相机连接表面。
  8. 根据权利要求7所述的相机装置，其中，第一连接件的上表面与第一连接件的下表面之间的夹角等于所述预定夹角；第二连接件的上表面与第二连接件的下表面平行。
  9. 根据权利要求6所述的相机装置，其中，连接模块包括第一连接件，其中，第一连接件用于实现与镜头的连接固定，以及与相机的连接固定，第一连接件的上表面为镜头连接表面，第一连接件的下表面为相机连接表面。
  10. 根据权利要求7-9中任一项所述的相机装置，其中，第一连接件的上表面与下表面之间的夹角可调节，相机装置还包括相机控制设备，相机控制设备用于获取第一检测区域和第二检测区域之间的位置关系，根据第一检测区域和第二检测区域之间的位置关系确定所述预定夹角和所述目标位置，将第一连接件的上表面与下表面之间的夹角调整为所述预定夹角，将相机装置安装于所述目标位置。
  11. 根据权利要求7-9中任一项所述的相机装置，还包括相机控制设备，其中，相机控制设备用于指示制造设备预先制备多个上表面与下表面之间夹角不同的第一连接件，获取第一检测区域和第二检测区域之间的位置关系，根据第一检测区域和第二检测区域之间的位置关系确定所述预定夹角和所述目标位置，选择上表面与下表面之间的夹角为所述预定夹角的第一连接件作为待使用第一连接件，将相机装置安装于所述目标位置。
  12. 一种卷绕机系统，包括电池卷绕机和如权利要求1-11中任一项 所述的相机装置。
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