Battery detection device

Abstract

The embodiment of the utility model provides a battery detection device, and relates to the technical field of batteries. The battery detection device comprises a light emitter, a light receiver and a conveyor belt. The conveying belt is provided with a conveying surface, and the conveying surface is used for bearing the battery monomers and conveying the battery monomers along a conveying path; the light emitter and the light receiver are opposite to each other and are respectively mounted on two opposite sides of the conveying path; the light emitter emits detection light to the light receiver to form a detection light path; the detection light path is parallel to the conveying surface, and the distance between the detection light path and the conveying surface is a first threshold value so as to detect whether the thickness of the single battery is smaller than the first threshold value. The battery detection device improves the thickness detection efficiency of the single battery and the accuracy of the detection result.

Description

Technical Field

[0001] The embodiments of the present application relate to the technical field of batteries, and in particular, to a battery detection device. Background Art

[0002] With the rapid development of battery technology, the quality requirements for battery cells are constantly increasing. Among them, the dimensional accuracy of battery cells, especially the thickness, is one of the important indicators for evaluating their performance, safety, and compatibility. Therefore, thickness detection of battery cells has become the key to controlling their quality.

[0003] In traditional battery thickness detection methods, operators often need to hold the battery cell and mechanical contact measurement tools such as vernier calipers and micrometers, detect multiple points of the battery cell, and record the data correspondingly to determine whether the thickness of the battery cell is qualified.

[0004] However, when using mechanical contact measurement tools to detect the thickness of battery cells, operators need to manually operate, which is time-consuming and laborious, and has low efficiency. Moreover, the points selected during manual detection may not be located at the thickest position of the battery cell, and the accuracy of the detection results cannot be guaranteed. Therefore, how to improve the thickness detection efficiency of battery cells and the accuracy of detection results has become a technical problem to be solved. Utility Model Content

[0005] In view of the above problems, the embodiments of the present application provide a battery detection device. This battery detection device transports the battery cell through a conveyor belt, and automatically detects the thickness of the battery cell through the detection optical path formed between the light emitter and the light receiver, and the thickness of all positions of the battery cell can be detected, improving the thickness detection efficiency of the battery cell and the accuracy of the detection results.

[0006] In one aspect of the embodiments of the present application, a battery detection device is provided. The battery detection device includes a light emitter, a light receiver, and a conveyor belt. The conveyor belt has a conveying surface for carrying the battery cell and transporting the battery cell along the conveying path. The light emitter and the light receiver are opposite and are respectively installed on opposite sides of the conveying path. The light emitter emits detection light onto the light receiver to form a detection optical path. The detection optical path is parallel to the conveying surface, and the distance between the detection optical path and the conveying surface is a first threshold value to detect whether the thickness of the battery cell is less than the first threshold value.

[0007] This battery detection device can automatically complete the thickness detection of the battery cell, and the thickness of all positions of the battery cell can be detected, improving the thickness detection efficiency of the battery cell and the accuracy of the detection results.

[0008] In an optional manner, the detection optical path is perpendicular to the conveying path.

[0009] This method can reduce the distance between the optical transmitter and the optical receiver, shorten the distance of the detection optical path, reduce the loss of the detection light, and improve the reliability of the detection.

[0010] In an alternative method, the optical transmitter is a laser transmitter and the optical receiver is a laser receiver. Or, the optical transmitter is an infrared transmitter and the optical receiver is an infrared receiver.

[0011] When the detection light is laser or infrared, it has strong anti-interference ability and can ensure the stability of the detection optical path. Moreover, laser transmitters, laser receivers, infrared transmitters, and infrared receivers are common and easy to replace.

[0012] In an alternative method, the optical transmitter and the optical receiver are movably installed on opposite sides of the conveying path. The movable directions of the optical transmitter and the optical receiver are parallel to the relative direction between the detection optical path and the conveying surface, so that the distance between the optical path and the conveying surface can be adjusted from a first threshold to a second threshold different from the first threshold.

[0013] In this method, the optical transmitter and the optical receiver can be adjusted up and down relative to the conveying surface, so that the distance between the optical transmitter and the optical receiver relative to the conveying surface can be changed, thereby adjusting the distance between the detection optical path and the conveying surface, enabling the detection device to detect battery cells of various thickness specifications, with stronger applicability and higher flexibility.

[0014] In an alternative method, a chute is provided on one side of the conveying path, and a sliding part is provided on the optical transmitter. The sliding part is embedded in the chute and can move along the relative direction between the detection optical path and the conveying surface in the chute.

[0015] In this method, the position of the optical transmitter is adjusted through the cooperation of the sliding part and the chute. The adjustment process is smooth, and no other components need to be disassembled or moved during the adjustment process, with low operation difficulty and high flexibility.

[0016] In an alternative method, a fastener is provided on the side wall of the chute, and the fastener can abut against the sliding part of the optical transmitter to fix the optical transmitter relative to the chute.

[0017] In this method, when the position of the optical transmitter needs to be adjusted, only tighten and loosen the fastener, which is simple to operate. Moreover, the fastener can firmly abut against the sliding part to ensure that the position of the optical transmitter relative to the chute remains fixed, with high reliability.

[0018] In an alternative method, a threaded section is provided on the sliding part. The threaded section is threadedly connected to the fastener and can pull the sliding part of the optical transmitter under the action of the fastener to fix the optical transmitter relative to the chute.

[0019] In this method, when the position of the light emitter needs to be adjusted, it is only necessary to tighten and loosen the fastener, and the operation is simple. Moreover, the fastener can firmly hold the sliding part to ensure that the position of the light emitter relative to the chute remains fixed, with high reliability.

[0020] In an alternative method, the light emitter is movably mounted on the first side of the conveying path in a threaded connection manner, and / or the light receiver is movably mounted on the second side of the conveying path in a threaded connection manner.

[0021] In this method, the light emitter and the light receiver can be installed by threaded connection, and the operation process during installation and position adjustment is simple.

[0022] In an alternative method, the light emitter or the light receiver is movably mounted on one side of the conveying path, and the movable direction of the light emitter or the light receiver is parallel to the conveying direction of the battery cell.

[0023] In this method, one of the light emitter and the light receiver can move parallel to the conveying direction of the battery cell, which is convenient for aligning the light emitter and the light receiver.

[0024] In an alternative method, the light emitter and the light receiver are movably mounted on opposite sides of the conveying path, and the movable directions of the light emitter and the light receiver are parallel to the conveying direction of the battery cell.

[0025] In this method, both the light emitter and the light receiver can move parallel to the conveying direction of the battery cell, which is convenient for adjusting the position of the detection optical path relative to the conveying path and also for aligning the light emitter and the light receiver.

[0026] The battery detection device provided by the embodiment of the present application conveys the battery cells through a conveyor belt. A light emitter and a light receiver are installed on both sides of the conveying path of the conveyor belt. The distance between the detection optical path formed between the light emitter and the light receiver and the conveying surface is a first threshold. When conveying the battery cells, the battery cells with a thickness less than the first threshold will not block the detection light during the conveying process, and the light receiver can always receive the detection light. The battery cells with a thickness reaching the first threshold will block the detection light during the conveying process, and the process of the light receiver receiving the detection light will be interrupted. According to the situation of the light receiver receiving the detection light, it can be known whether the thickness of the battery cell reaches the first threshold, so as to judge whether the thickness of the battery cell is qualified. The detection process of this battery detection device does not require manual operation by the operator, and this battery detection device can detect the thickness of all positions of the battery cell, improving the thickness detection efficiency of the battery cell and the accuracy of the detection result.

[0027] The above description is only an overview of the technical solution of the embodiments of the present application. In order to understand the technical means of the embodiments of the present application more clearly, it can be implemented according to the content of the specification. In order to make the above and other purposes, features, and advantages of the embodiments of the present application more obvious and understandable, the following specifically illustrates the embodiments of the present application. Brief Description of the Drawings

[0028] In order to more clearly illustrate the technical solution of the embodiments of the present application, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the drawings in the following description are some embodiments of the present application. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0029] Figure 1 It is a schematic structural diagram of a battery detection device provided by an embodiment of the present application.

[0030] Figure 2 It is a cross-sectional view of a fastener against the sliding part of a light emitter involved in an embodiment of the present application.

[0031] Figure 3 It is a cross-sectional view of a fastener pulling the sliding part of a light emitter involved in an embodiment of the present application.

[0032] Reference Signs:

[0033] 10, light emitter; 11, sliding part; 12, threaded section; 20, light receiver; 30, conveyor belt; 31, conveying surface; 40, frame; 41, mounting seat; 42, chute; 43, fastener; 50, battery cell; 60, detection optical path. Detailed Embodiments

[0034] In order to make the objectives, technical solutions, and advantages of the embodiments of the present application clearer, the following will clearly and completely describe the technical solutions in the embodiments of the present application with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are some, but not all, of the embodiments of the present application. Based on the embodiments of the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present application.

[0035] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those of ordinary skill in the technical field to which this application belongs; the terms used in the specification of this application are only for the purpose of describing specific embodiments and are not intended to limit this application.

[0036] The terms "comprising" and "having" and any variations thereof in the description, claims and drawings of this application are intended to cover but not exclude other elements. The words "a" or "an" do not exclude the presence of a plurality.

[0037] Reference herein to "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 application. The phrase "an embodiment" appearing in various places in the description is not necessarily referring to the same embodiment, nor is it an independent or alternative embodiment mutually exclusive with other embodiments. Those skilled in the art will explicitly and implicitly understand that the embodiments described herein can be combined with other embodiments.

[0038] The term "and / or" herein is merely a description of the association relationship of associated objects, indicating that there can be three relationships. For example, A and / or B can represent: A exists alone, A and B exist simultaneously, and B exists alone. Additionally, the character " / " herein generally represents an "or" relationship between the associated objects before and after.

[0039] The directional terms appearing in the following description are all the directions shown in the figures and do not limit the specific structure of the battery detection device of this application. For example, in the description of this application, terms such as "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing this application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to this application.

[0040] In addition, expressions indicating directions such as the X direction, Y direction, and Z direction used to illustrate the operation and structure of the components of the battery detection device of this embodiment are not absolute but relative. Although these indications are appropriate when the components of the battery detection device are in the positions shown in the figures, when these positions change, these directions should have different interpretations to correspond to the change.

[0041] In addition, the terms "first", "second", etc. in the description, claims or the above-mentioned drawings of this application are used to distinguish different objects and not to describe a specific order, and may explicitly or implicitly include one or more of such features.

[0042] In the description of the present application, unless otherwise specified, "a plurality of" means two or more (including two). Similarly, "a plurality of groups" means two or more groups (including two groups).

[0043] In the description of the present application, it should be noted that, unless otherwise clearly specified and defined, the terms "installed", "connected", and "coupled" should be understood in a broad sense. For example, "connected" or "coupled" in a mechanical structure may refer to a physical connection. For example, a physical connection may be a fixed connection, such as a fixed connection through a fixing member, such as a screw, a bolt, or other fixing members; a physical connection may also be a detachable connection, such as a snap connection or a clamping connection; a physical connection may also be an integral connection, such as a welded connection, an adhesive connection, or a connection formed by integral molding. "Connected" or "coupled" in a circuit structure may refer to not only a physical connection but also an electrical connection or a signal connection. For example, it may be a direct connection, that is, a physical connection, or it may be indirectly connected through at least one intermediate component, as long as the circuit is connected. It may also be a communication inside two components; a signal connection may refer to not only a signal connection through a circuit but also a signal connection through a media medium, such as radio waves. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific circumstances.

[0044] The battery detection device provided by this embodiment is as Figure 1 shown Figure 1 in the structural schematic diagram of a battery detection device provided by an embodiment of the present application. Among them, the battery detection device includes a frame body 40, a light emitter 10, a light receiver 20, and a conveyor belt 30.

[0045] The frame body 40 is a rigid support structure with sufficient installation space for providing installation positions and support for components such as the light emitter 10, the light receiver 20, and the conveyor belt 30.

[0046] The conveyor belt 30, as a component for carrying and conveying battery cells 50, can convey the battery cells 50 from one location to another by continuous or intermittent movement. The conveyor belt 30 can be driven by electricity and can be connected to an industrial control unit so that the battery cells 50 can be started, paused, or continuously conveyed under the control of the industrial control unit.

[0047] The conveyor belt 30 has a smooth conveying surface 31 for carrying the battery cells 50 and conveying the battery cells 50 along the conveying path. The conveying surface 31 is usually made of wear-resistant and corrosion-resistant materials to ensure that the battery cells 50 move with the movement of the conveying surface 31 under the action of friction and to ensure that the battery cells 50 are not damaged during the conveying process.

[0048] The conveying path is a preset established path. The conveying direction of the conveying path is the moving direction of the conveying surface 31, and the path width of the conveying path is the width of the conveying surface 31.

[0049] The light emitter 10 and the light receiver 20 are paired optical elements. The light emitter 10 is used to emit detection light, and the light receiver is used to receive the detection light and convert the optical signal into an electrical signal. There are many specific setting methods for the light emitter 10 and the light receiver 20. Exemplarily, the light emitter 10 can be a laser emitter, and the light receiver 20 can be a laser receiver. Or, the light emitter 10 can be an infrared emitter, and the light receiver 20 can be an infrared receiver. When the detection light is laser or infrared, it has strong anti-interference ability and can ensure the stability of the detection optical path. Moreover, laser emitters, laser receivers, infrared emitters, and infrared receivers are common and easy to replace.

[0050] The light emitter 10 and the light receiver 20 are opposite to each other and are respectively installed on opposite sides of the conveying path. The light emitter 10 emits the detection light onto the light receiver 20 to form a detection optical path. The detection optical path is parallel to the conveying surface 31, and the distance between the detection optical path and the conveying surface 31 is a first threshold value to detect whether the thickness of the battery cell 50 is less than the first threshold value.

[0051] The light emitter 10 and the light receiver 20 can also be connected to the industrial control unit to control the light emitter 10 to emit detection light through the industrial control unit, and to record the reception situation of the detection light by the light receiver 20 through the industrial control unit. The industrial control unit can further judge whether the thickness of the battery cell 50 is qualified according to the reception situation of the detection light by the light receiver 20.

[0052] In this embodiment, the opposite sides of the conveying path refer to the two sides separated by the conveying path along the conveying direction of the battery cell 50. Specifically, the light emitter 10 is installed on the first side of the conveying path, and the light receiver 20 is installed on the second side of the conveying path. The first side and the second side are separated by the conveying path along the conveying direction of the battery cell 50.

[0053] In this embodiment, the detection light emitted by the light emitter 10 passes through the space above the conveying surface 31 and is received by the light receiver 20. The optical path between the light emitter 10 and the light receiver 20 is the detection optical path. The distance between the detection optical path and the conveying surface 31 is a first threshold value, and this first threshold value is used to indicate whether the thickness of the battery cell 50 is qualified. In a specific implementation manner, either the battery cell 50 with a thickness less than the first threshold value can be determined as a qualified product, or the battery cell 50 with a thickness greater than or equal to the first threshold value can be determined as a qualified product, depending on specific requirements.

[0054] The optical transmitter 10 and the optical receiver 20 are opposite to each other and are respectively installed on opposite sides of the conveying path, so that the detection optical path intersects with the conveying path. When the battery cell 50 is conveyed on the conveying surface 31, it will pass through the position of the detection optical path, which is equivalent to sweeping the detection optical path across the battery cell 50, thereby detecting the thickness of all positions of the battery cell 50. In an alternative manner, the detection optical path can be perpendicular to the conveying path to reduce the distance between the optical transmitter 10 and the optical receiver 20, shorten the distance of the detection optical path, reduce the loss of the detection light, and improve the reliability of the detection.

[0055] When using this battery detection device to detect the thickness of the battery cell 50, first place the battery cell 50 face up on the conveying surface 31 so that the thickness direction of the battery cell 50 is consistent with the relative direction between the detection optical path and the conveying surface 31. Then the battery cell 50 will be conveyed along the conveying path on the conveying surface 31 and its thickness will be detected.

[0056] When the battery cell 50 is conveyed on the conveying surface 31, if its thickness is less than the first threshold value, it will not block the detection light, the detection optical path will not be interrupted, and the optical receiver can always receive the detection light. If the thickness of the conveyed battery cell 50 is greater than or equal to the first threshold value, the battery cell 50 will pass through the detection optical path when it is conveyed on the conveying surface 31, thereby blocking the detection light, the detection optical path will be interrupted, and the process of the optical receiver receiving the detection light will be interrupted. Therefore, according to whether the optical receiver always receives the detection light during the conveying period of the battery cell 50, it can be determined whether the thickness of the battery cell 50 is qualified.

[0057] In this kind of detection device, the thickness detection of the battery cell 50 can be automatically completed when it is conveyed on the conveyor belt 30, without manual operation by the operator, which can realize automatic detection, with high detection efficiency and low cost. Moreover, the battery cell 50 will not come into contact with the operator during the detection process, and the battery cell 50 will not be scratched, avoiding the loss of the battery cell 50 during the thickness detection. Furthermore, by detecting the thickness of the battery cell 50 in the conveying process through the detection optical path, the thickness of all positions of the battery cell 50 can be detected, improving the accuracy of the detection result.

[0058] In this embodiment, the optical transmitter 10 and the optical receiver 20 can be specifically installed on opposite sides of the conveying path by means of threaded connection, snap connection, clamping, etc. And the optical transmitter 10 and the optical receiver 20 can be installed in a fixed manner, a movable manner, a detachable manner, etc., which is not limited here.

[0059] Moreover, brackets, mounting seats 41 and other mounting structures can be provided on the opposite sides of the conveying path according to the structures of the light emitter 10 and the light receiver 20 to mount the light emitter 10 and the light receiver 20. Moreover, the mounting method of the mounting structure relative to the frame body 40 can also be fixed mounting, movable mounting, detachable mounting, etc., which are not limited here.

[0060] The mounting methods of the light emitter 10 and the light receiver can be completely the same or different. For example, the light emitter 10 can be movably mounted on one side of the conveying path, while the light receiver 20 is fixedly mounted on the other side of the conveying path, so as to facilitate adjusting the position of the light emitter 10 and the emission direction of the detected light, so as to facilitate the alignment of the light emitter 10 and the light receiver 20.

[0061] In an alternative way, the light emitter 10 and the light receiver 20 are movably mounted on the opposite sides of the conveying path, and the movable directions of the light emitter 10 and the light receiver 20 are parallel to the relative direction between the detection optical path and the conveying surface 31, so that the distance between the optical path and the conveying surface 31 can be adjusted from a first threshold value to a second threshold value different from the first threshold value.

[0062] In this way, the first threshold value and the second threshold value are used to detect whether the battery cells 50 of different thickness specifications are qualified. The light emitter 10 and the light receiver 20 can be adjusted up and down relative to the conveying surface 31, so that the distance between the light emitter 10 and the light receiver 20 relative to the conveying surface 31 can be changed, thereby adjusting the distance between the detection optical path and the conveying surface 31, so that the detection device can detect battery cells 50 of multiple thickness specifications, with stronger applicability and higher flexibility.

[0063] When the light emitter 10 and the light receiver 20 are movably mounted on the opposite sides of the conveying path, there are many specific mounting methods. For example, they can be movably mounted through components such as chutes, sliders, or slide rails, or can be movably mounted through structures such as screw rods with threaded connections, which are not limited here. Moreover, the light emitter 10 and the light receiver 20 can adopt exactly the same specific mounting method or different specific mounting methods.

[0064] The following takes the specific mounting method of the light emitter 10 as an example to exemplarily illustrate the movable mounting method.

[0065] The first specific mounting method of the light emitter 10 is as Figure 2 and Figure 3 shown, Figure 2 which is a cross-sectional view of a fastener in an embodiment of the present application against the sliding part of the light emitter, Figure 3A cross-sectional view of a sliding part of a fastener holding a light emitter according to an embodiment of the present application. On one side of the conveying path, a chute 42 is provided, and a sliding part 11 is provided on the light emitter 10. The sliding part 11 is embedded in the chute 42 and can move in the chute 42 along the relative direction between the detection optical path and the conveying surface 31.

[0066] Specifically, the chute 42 can be provided on the mounting base 41 for mounting the light emitter 10, and the chute 42 can be set as a straight chute, a curved chute, etc. The sliding part 11 can be set as structures such as a sliding boss, a convex column, etc.

[0067] The sliding direction of the sliding part 11 in the chute 42 can be completely parallel to the relative direction between the optical path and the conveying surface 31, so that the sliding part 11 can only move along the relative direction between the detection optical path and the conveying surface 31. The sliding direction of the sliding part 11 in the chute 42 can also intersect with the relative direction between the optical path and the conveying surface 31, so that the sliding part 11 can not only move along the relative direction between the detection optical path and the conveying surface 31, but also move in other directions at the same time.

[0068] In this way, the position of the light emitter 10 is adjusted through the cooperation of the sliding part 11 and the chute 42. The adjustment process is smooth, and there is no need to disassemble or move other components during the adjustment process. The operation difficulty is low and the flexibility is high.

[0069] Furthermore, in order to fix the light emitter 10 after adjustment, the light emitter can be fixed relative to the chute 42 through a fastener 43. There are also many ways to set the fastener 43. A feasible implementation is as Figure 2 shown. A fastener 43 is provided on the side wall of the chute 42. The fastener 43 can abut against the sliding part 11 of the light emitter 10, so that the light emitter 10 is fixed relative to the chute 42. Specifically, for example, the fastener 43 is set as a bolt. The bolt can extend into the chute 42 from the side wall of the chute 42, abut against the sliding part 11 in the chute 42, and thus fix the sliding part 11, so that the light emitter 10 is fixed.

[0070] In this way, when the position of the light emitter 10 needs to be adjusted, only the fastener 43 needs to be tightened and loosened, and the operation is simple. Moreover, the fastener 43 can firmly abut against the sliding part 11 to ensure that the position of the light emitter 10 relative to the chute 42 remains fixed, and the reliability is high.

[0071] In addition, the fastener 43 can also be set as a structure that pulls the sliding part 11. The specific implementation can be as Figure 3As shown, a threaded section 12 is provided on the sliding part 11. The threaded section 12 is threadedly connected to the fastener 43, and can hold the sliding part 11 of the light emitter 10 under the action of the fastener 43, so that the light emitter 10 is fixed relative to the sliding groove 42. Among them, the fastener 43 can be set as a structure such as a nut that is threadedly connected to the threaded section 12.

[0072] In this way, when it is necessary to adjust the position of the light emitter 10, it is only necessary to tighten and loosen the fastener 43, and the operation is simple. Moreover, the fastener 43 can firmly hold the sliding part 11, ensuring that the position of the light emitter 10 relative to the sliding groove 42 remains unchanged, and the reliability is high.

[0073] In the second specific installation method of the light emitter 10, the light emitter 10 is movably installed on the first side of the conveying path in a threaded connection manner.

[0074] In a specific implementation manner, a threaded post can be provided on the light emitter 10, and a threaded hole matching the threaded post is provided on the mounting seat 41 for mounting the light emitter 10. The screwing-in direction and screwing-out direction of the threaded post relative to the threaded hole are both parallel to the relative direction between the detection optical path and the conveying surface 31. The installation of the light emitter 10 can be achieved by docking the threaded post and the threaded hole. When it is necessary to adjust the distance between the light emitter 10 and the conveying surface 31, only the threaded post needs to be rotated.

[0075] In this way, the light emitter 10 and the light receiver 20 can be installed by means of threaded connection, and the operation process during installation and position adjustment is simple.

[0076] Similarly, the light receiver 20 can be installed by analogy with the specific installation method of the light emitter 10. For example, in a specific installation method of a light receiver 20, a sliding groove is provided on one side of the conveying path, a sliding part is provided on the light receiver 20, and the sliding part is embedded in the sliding groove and can move in the sliding groove along the relative direction between the detection optical path and the conveying surface 31. In another specific installation method of the light receiver 20, the light receiver 20 is movably installed on the second side of the conveying path in a threaded connection manner. The specific implementation process is analogous to the content of the above two specific installation methods of the light emitter 10, and no redundant description will be given here.

[0077] In a specific implementation manner, the specific installation methods of the light emitter 10 and the light receiver 20 can be the same or different, and no limitation is made here.

[0078] In addition, in this embodiment, the light emitter 10 and the light receiver 20 can also move parallel to the conveying direction of the battery cell 50, so as to facilitate the adjustment of the position and angle of the detection optical path.

[0079] In an alternative manner, the optical transmitter 10 or the optical receiver 20 can be movably installed on one side of the conveying path, and the movable direction of the optical transmitter 10 or the optical receiver 20 is parallel to the conveying direction of the battery cell 50.

[0080] In this manner, one of the optical transmitter 10 and the optical receiver 20 can be moved parallel to the conveying direction of the battery cell 50 to facilitate the alignment of the optical transmitter 10 and the optical receiver 20.

[0081] In another alternative manner, the optical transmitter 10 and the optical receiver 20 can be movably installed on opposite sides of the conveying path, and the movable directions of the optical transmitter 10 and the optical receiver 20 are parallel to the conveying direction of the battery cell 50.

[0082] In this manner, both the optical transmitter 10 and the optical receiver 20 can be moved parallel to the conveying direction of the battery cell 50 to facilitate adjusting the position of the detection optical path relative to the conveying path and also to facilitate the alignment of the optical transmitter 10 and the optical receiver 20.

[0083] Among them, there are also many specific setting methods for the optical transmitter 10 and the optical receiver 20 to move parallel to the conveying direction of the battery cell 50. In specific embodiments, they can also move through components such as chutes, sliders, or slide rails, or move through structures connected by threads such as lead screws, which are not limited here.

[0084] In summary, the above-described battery detection device conveys battery cells through a conveyor belt. An optical transmitter and an optical receiver are installed on both sides of the conveying path of the conveyor belt, and the distance between the detection optical path formed between the optical transmitter and the optical receiver and the conveying surface is a first threshold. When conveying battery cells, battery cells with a thickness less than the first threshold will not block the detection light during the conveying process, and the optical receiver can always receive the detection light. Battery cells with a thickness reaching the first threshold will block the detection light during the conveying process, and the process of the optical receiver receiving the detection light will be interrupted. According to the situation of the optical receiver receiving the detection light, it can be known whether the thickness of the battery cell reaches the first threshold, thereby determining whether the thickness of the battery cell is qualified. The detection process of this battery detection device does not require manual operation by an operator, and this battery detection device can detect the thickness of all positions of the battery cell, improving the thickness detection efficiency of the battery cell and the accuracy of the detection result.

[0085] Those skilled in the art can understand that although some embodiments herein do not include certain features included in other embodiments, the combination of features of different embodiments is still within the scope of this application and forms different embodiments. For example, in the claims, any one of the claimed embodiments can be used in any combination.

[0086] The above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. A battery detection device, characterized in that, The battery detection device includes: a light emitter, a light receiver, and a conveyor belt; The conveyor belt has a conveying surface for carrying battery cells and conveying the battery cells along a conveying path; The light emitter and the light receiver face each other and are respectively installed on opposite sides of the conveying path. The light emitter emits detection light onto the light receiver to form a detection optical path; The detection optical path is parallel to the conveying surface, and the distance between the detection optical path and the conveying surface is a first threshold value to detect whether the thickness of the battery cell is less than the first threshold value.

2. The battery detection device according to claim 1, characterized in that The detection optical path is perpendicular to the conveying path.

3. The battery detection device according to claim 1, wherein The light emitter is a laser emitter, and the light receiver is a laser receiver; Alternatively, the light emitter is an infrared emitter, and the light receiver is an infrared receiver.

4. The battery detection device according to claim 1, characterized in that The light emitter and the light receiver are movably installed on opposite sides of the conveying path. The movable directions of the light emitter and the light receiver are parallel to the relative direction between the detection optical path and the conveying surface, so that the distance between the optical path and the conveying surface can be adjusted from the first threshold value to a second threshold value different from the first threshold value.

5. The battery detection device according to claim 4, wherein A chute is provided on one side of the conveying path, and a sliding part is provided on the light emitter; the sliding part is embedded in the chute and can move in the chute along the relative direction between the detection optical path and the conveying surface.

6. The battery detection device according to claim 5, characterized in that, Fasteners are provided on the side walls of the chute. The fasteners can abut against the sliding part of the light emitter, so that the light emitter is fixed relative to the chute.

7. The battery detection device according to claim 5, wherein A threaded section is provided on the sliding part. The threaded section is threadedly connected to the fastener and can pull the sliding part of the light emitter under the action of the fastener, so that the light emitter is fixed relative to the chute.

8. The battery detection device according to claim 4, wherein, The light emitter is movably installed on the first side of the conveying path in a threaded connection manner, and / or the light receiver is movably installed on the second side of the conveying path in a threaded connection manner.

9. The battery detection device according to claim 1, characterized in that, The light emitter or the light receiver is movably installed on one side of the conveying path, and the movable direction of the light emitter or the light receiver is parallel to the conveying direction of the battery cell.

10. The battery detection device according to claim 1, wherein, The light emitter and the light receiver are movably installed on opposite sides of the conveying path, and the movable directions of the light emitter and the light receiver are parallel to the conveying direction of the battery cell.

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