CN117405685A - Light emitting device, light emitting method and battery detection apparatus - Google Patents
Light emitting device, light emitting method and battery detection apparatus Download PDFInfo
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- CN117405685A CN117405685A CN202311722572.6A CN202311722572A CN117405685A CN 117405685 A CN117405685 A CN 117405685A CN 202311722572 A CN202311722572 A CN 202311722572A CN 117405685 A CN117405685 A CN 117405685A
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- 238000000034 method Methods 0.000 title claims abstract description 14
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- 230000001678 irradiating effect Effects 0.000 claims abstract description 9
- 239000000463 material Substances 0.000 claims description 13
- 238000004020 luminiscence type Methods 0.000 abstract 1
- 238000009434 installation Methods 0.000 description 6
- 238000010586 diagram Methods 0.000 description 5
- 238000005286 illumination Methods 0.000 description 4
- 230000006978 adaptation Effects 0.000 description 2
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- 239000003086 colorant Substances 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000003384 imaging method Methods 0.000 description 1
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- 238000004519 manufacturing process Methods 0.000 description 1
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- 150000002739 metals Chemical class 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 description 1
- 239000005304 optical glass Substances 0.000 description 1
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Classifications
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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
- G01N21/8806—Specially adapted optical and illumination features
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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
- G01N21/01—Arrangements or apparatus for facilitating the optical investigation
-
- 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
- G01N21/95—Investigating the presence of flaws or contamination characterised by the material or shape of the object to be examined
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2201/00—Features of devices classified in G01N21/00
- G01N2201/06—Illumination; Optics
- G01N2201/061—Sources
Abstract
The application relates to the technical field of battery detection and provides a light-emitting device, a light-emitting method and battery detection equipment, which comprise a shell, wherein the shell is provided with a containing cavity, the shell is annularly arranged on a conveying track for conveying a battery to be detected, and one end of the shell is connected with a camera component; the electric appliance board assembly is provided with an opening at the opposite ends, is arranged in the accommodating cavity through the two ends of the opening, and comprises an electric appliance board, a luminous controller and a plurality of luminous parts electrically connected with the luminous controller; the inner wall of the electric board is conical, each light-emitting part is arranged on the conical inner wall of the electric board at intervals, the incident angles of the light-emitting parts irradiating the surface of the battery to be tested are different, and the light-emitting controller is used for determining the target light-emitting parts according to the product information of the battery to be tested and controlling the target light-emitting parts to emit light. In this application, through the luminous piece luminescence of control different incident angles for the defect under the different angles is more easily detected, helps improving defect detection's accuracy.
Description
Technical Field
The invention relates to the technical field of battery detection, and particularly provides a light-emitting device, a light-emitting method and battery detection equipment.
Background
With the development and popularization of new energy technology, new energy automobiles become more and more choices for users. The battery is one of important parts of the new energy automobile, and the safety of the new energy automobile is closely related to the safety of the battery. In order to ensure the safety of the battery, in the production process of the battery, defect detection is generally required to be carried out on the surface of the battery, so that unqualified batteries are prevented from being mounted on a new energy automobile, and potential safety hazards are caused to the use of the batteries.
In the related art, an industrial camera is generally used for collecting surface images of a battery to determine whether the battery has defects, and when the industrial camera is used for collecting images, only ambient light or a fixed light source is generally used for illuminating the surface of the battery, so that uneven brightness and illumination of the surface of the battery are easily caused, and the quality of the image and the accuracy of defect detection are easily affected.
Disclosure of Invention
The embodiment of the application provides a light-emitting device, a light-emitting method and battery detection equipment, which can solve the problems that in the related art, the brightness and illumination of the surface of a battery are uneven, and the image quality and the accuracy of defect detection are affected.
In order to achieve the above purpose, the technical scheme adopted in the application is as follows: there is provided a light emitting device for illuminating a surface of a battery to be measured so that a camera assembly captures an image, the light emitting device comprising:
the shell is provided with a containing cavity, the shell is arranged on a conveying track for conveying the battery to be tested in a surrounding mode, and one end of the shell is connected with the camera component;
the electric appliance board assembly is provided with an opening at the opposite ends, is arranged in the accommodating cavity through the two ends of the opening, and comprises an electric appliance board, a luminous controller and a plurality of luminous parts electrically connected with the luminous controller;
the inner wall of the electric board is conical, each light-emitting part is arranged on the conical inner wall of the electric board at intervals, the incident angles of the light-emitting parts irradiating the surface of the battery to be tested are different, and the light-emitting controller is used for determining the target light-emitting parts according to the product information of the battery to be tested and controlling the target light-emitting parts to emit light.
According to the light-emitting device provided by the embodiment of the application, the electric board assembly is accommodated in the accommodating cavity of the shell, and the shell is arranged on the conveying track for conveying the battery to be detected in a surrounding mode, when the light-emitting piece in the electric board assembly emits light, the light source can uniformly irradiate the circumferential surface of the battery to be detected on the conveying track, uneven brightness and illumination on the surface of the battery to be detected can be avoided, the image quality can be improved, the camera assembly can collect a plurality of images in the circumferential direction of the battery to be detected at the same time, and the efficiency of detecting defects of the battery can be improved; the multiple luminous pieces are arranged on the conical inner wall of the electric board at intervals, so that the incidence angles of the light sources when each luminous piece irradiates the battery to be detected are different, the required incidence angle is determined by the luminous controller based on the product information of the battery to be detected, the corresponding target luminous piece is controlled to emit light, defects at different angles are easier to detect, and the defect detection accuracy is improved.
In some embodiments, the electrical panel has a first end and a second end opposite to each other, the first end having an inner wall dimension greater than an inner wall dimension of the second end, the first end being an end of the electrical panel proximate to the camera assembly, the second end being an end of the electrical panel distal to the camera assembly.
Through adopting above-mentioned technical scheme, the inner wall of electrical panel is close to the camera subassembly its corresponding inner wall size bigger more, and the girth of corresponding light-emitting part also is bigger, when the light-emitting part shines the battery surface that awaits measuring, can avoid light to be blocked by other light-emitting parts, helps guaranteeing the reliability that the light-emitting part shines the surface of the battery that awaits measuring.
In some embodiments, the inner wall of the housing is tapered and fits with the tapered inner wall.
By adopting the technical scheme, the conical shell can guide the light of the luminous element, so that the light of the luminous element uniformly irradiates the surface of the battery to be detected, and the irradiation effect is improved; the inner wall of casing and the toper inner wall looks adaptation of electrical panel help installing electrical panel firmly in the holding intracavity of casing.
In some embodiments, the inner wall of the shell is provided with a plurality of first annular grooves for accommodating the luminous elements, and when the electric board assembly is arranged in the accommodating cavity, one ends of the luminous elements are matched with the first annular grooves.
In this embodiment, when the light emitting part is located and holds the intracavity, the one end and the first ring channel looks adaptation of light emitting part help guaranteeing the relative position of light emitting part and casing, avoid light emitting part to slide in holding the intracavity and produce the position skew.
In some embodiments, the light emitting elements are circular, and each light emitting element is disposed around the tapered inner wall.
In this embodiment, the light emitting member is circular, which is conducive to further uniformly irradiating light onto the circumferential surface of the battery to be measured, and improves the uniformity of the brightness of the surface of the battery to be measured, thereby improving the image quality.
In some embodiments, the tapered inner wall has a plurality of second annular grooves for receiving the luminescent member, and the luminescent member is disposed in the second annular grooves.
In this embodiment, the light emitting component is located in the second ring channel on the toper inner wall of electrical panel, can ensure the relative position of light emitting component on the toper inner wall, helps connecting the light emitting component on the electrical panel firmly, improves the stability of being connected between light emitting component and the electrical panel.
In some embodiments, the light emitting device further includes a rear cover, and an end of the housing, which is far away from the camera assembly, is in an opening shape, and the rear cover covers the opening of the housing.
In this embodiment, the opening of the casing is covered by the rear cover, so that the electrical component is accommodated in the sealed space formed by the casing and the rear cover, light leakage of the light-emitting element can be reduced, and light of the light-emitting element can be irradiated on the surface of the battery to be tested through the casing as much as possible, which is helpful for improving brightness of the surface of the battery to be tested and improving light utilization rate.
The application also provides a light emitting method for the light emitting device, comprising the following steps:
obtaining product information of a battery to be tested, and determining a target luminous element corresponding to the product information according to the product information, wherein the product information comprises at least one of the following: the surface material of the battery to be detected, the reflection coefficient of the battery to be detected and the detected defect type;
the control target lighting member emits light.
According to the light emitting method provided by the embodiment of the application, the required incidence angle is determined based on the product information of the battery to be detected, and the corresponding target light emitting piece is controlled to emit light, so that defects under different angles are easier to detect, and the accuracy of defect detection is improved.
The application also provides battery detection equipment, including the camera subassembly, still include above-mentioned lighting device, lighting device connects in the camera subassembly.
According to the battery detection equipment provided by the embodiment of the application, the required incidence angle is determined based on the product information of the battery to be detected through the light-emitting controller, the corresponding target light-emitting piece is controlled to emit light, so that light of the target light-emitting piece penetrates through the shell and irradiates on the surface of the battery to be detected at a certain incidence angle, the camera component is used for collecting the surface image of the battery to be detected, so that whether the battery to be detected has defects or not is determined, the defect detection of the battery to be detected is realized, the defects under different angles are easier to detect, and the accuracy of the defect detection is improved.
In some embodiments, the number of light emitting devices is two, and two light emitting devices are symmetrically mounted at opposite ends of the camera assembly.
In this embodiment, the two light emitting devices can both illuminate the surface of the battery to be detected, when the defect detection is performed on the battery to be detected, the two light emitting devices can be controlled according to the actual use requirement to obtain the required light, which is helpful for improving the detection range of the battery detection device, and the two light emitting devices can mutually cooperate to illuminate the surface of the battery to be detected, so that the defects of different types are easier to detect, and the accuracy of the defect detection can be improved.
The foregoing description is only an overview of the technical solutions of the present application, and may be implemented according to the content of the specification in order to make the technical means of the present application more clearly understood, and in order to make the above-mentioned and other objects, features and advantages of the present application more clearly understood, the following detailed description of the present application will be given.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following description will briefly introduce the drawings that are needed in the embodiments or the related technical descriptions, and it is obvious that the drawings in the following description are only some embodiments of the present application, and other drawings may be obtained according to these drawings without inventive effort for a person of ordinary skill in the art.
FIG. 1 is a schematic diagram of a light emitting device according to an embodiment of the present disclosure;
FIG. 2 is a schematic view of an installation position of a light emitting device according to an embodiment of the present disclosure;
FIG. 3 is a schematic view of a housing provided in an embodiment of the present application;
fig. 4 is a schematic view of an installation position of a light emitting device according to another embodiment of the present application;
FIG. 5 is a schematic diagram of an electrical panel according to an embodiment of the present application;
FIG. 6 is a schematic diagram illustrating an assembly of an electrical board and a light emitting device according to an embodiment of the present disclosure;
FIG. 7 is a flowchart of an implementation of a lighting method according to an embodiment of the present disclosure;
FIG. 8 is a schematic diagram of a battery detection apparatus according to an embodiment of the present application;
fig. 9 is a schematic diagram of a battery detection apparatus according to another embodiment of the present application.
Wherein, each reference sign in the figure:
1000. a battery detection device; 100. a light emitting device; 10. a housing; 11. a receiving chamber; 12. an inner wall; 121. a first annular groove; 200. a camera assembly; 20. an electrical panel assembly; 21. an electric board; 211. a tapered inner wall; 2111. a second annular groove; 212. a first end; 213. a second end; 22. a light emitting member; 300. a conveying rail; 30. a rear cover; 400. and (5) testing the battery.
Detailed Description
Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative and intended to explain the present invention and should not be construed as limiting the invention.
In the description of the present invention, it should be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate orientations or positional relationships based on the orientation or positional relationships shown in the drawings, merely to facilitate describing the present invention and simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present invention.
Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present invention, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.
In the present invention, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.
Referring to fig. 1 to 3, an embodiment of the present application provides a light emitting device 100 for illuminating a surface of a battery 400 to be tested so that a camera assembly 200 can collect images, the light emitting device 100 includes:
the casing 10, the casing 10 has a housing cavity 11, the casing 10 is looped around the conveying rail 300 for conveying the battery 400 to be tested, and one end of the casing 10 is connected to the camera assembly 200.
The housing 10 may be a box, or the like having a cavity. The housing 10 has a receiving chamber 11 for receiving the electrical panel assembly 20, and one end of the housing 10 is opened to facilitate the installation of the electrical panel assembly 20 in the receiving chamber 11. The shape and size of the receiving chamber 11 are adapted to the shape and size of the electrical panel assembly 20. For example, the shape and size of the receiving chamber 11 may be the same as those of the electric board assembly 20, thereby receiving the electric board assembly 20. For another example, the size of the accommodating cavity 11 may be slightly larger than that of the electrical board assembly 20, so as to facilitate the installation and the removal of the electrical board assembly 20.
As shown in fig. 1 and 2, the center of the housing 10 is provided with a through hole through which the housing 10 is looped around the conveying rail 300, the conveying rail 300 passes through the center of the through hole of the housing 10, and one end of the housing 10 is connected to the camera assembly 200.
The camera assembly 200 is disposed around the conveying track 300, and the camera assembly 200 is used for collecting surface images of the battery 400 to be tested. The camera assembly 200 may include a plurality of lenses spaced apart from the conveying rail 300 to thereby enable a plurality of images of the battery 400 to be measured in the circumferential direction to be acquired at the same time.
The electrical board assembly 20, the opposite ends of the electrical board assembly 20 are open, the electrical board assembly 20 is arranged in the accommodating cavity 11 through the open ends, and the electrical board assembly 20 comprises an electrical board 21, a light-emitting controller and a plurality of light-emitting pieces 22 electrically connected with the light-emitting controller.
Wherein, the inner wall of the electrical board 21 is tapered, each light emitting element 22 is disposed on the tapered inner wall 211 of the electrical board 21 at intervals, the incident angles of each light emitting element 22 irradiating the surface of the battery 400 to be tested are different, and the light emitting controller is used for determining the target light emitting element according to the product information of the battery 400 to be tested and controlling the target light emitting element to emit light.
The electrical board assembly 20 is accommodated in the accommodating cavity 11 and is arranged around the conveying track 300. The electrical board assembly 20 includes an electrical board 21, a plurality of light emitting devices 22 connected to the electrical board 21, and a light emitting controller electrically connected to the plurality of light emitting devices 22.
The electric board 21 may be a base structure such as a base or a pedestal. The electrical board 21 is used for mounting and fixing the light emitting elements 22, specifically, the inner wall of the electrical board 21 is tapered, and each light emitting element 22 is disposed on the tapered inner wall 211 of the electrical board 21 at intervals. For example, the light emitting elements 22 may be adhered to the tapered inner wall 211 at uniform intervals.
The light emitting member 22 may be a structure capable of emitting light such as a lamp strip, a lamp bead, or the like. The light emitting member 22 is used for illuminating the surface of the battery 400 to be measured, so that the camera assembly 200 can collect clear and bright images.
The light emitting controller may be a switch, a controller, or the like. The light emitting controller is electrically connected to the light emitting member 22,
for controlling the light emitting member 22 to emit light. The light controller may control any one or more of the light 22 to emit light or to turn off. Specifically, the lighting controller may determine a target lighting member to be lighted according to the product information of the battery 400 to be tested, then control the target lighting member to emit light, and control the non-target lighting member to be turned off, so as to achieve that only the lighting member to be lighted irradiates the surface of the battery 400 to be tested.
The light emitting member 22 has different incident angles when it is mounted at different positions on the tapered inner wall 211. For example, referring to fig. 4, the first light emitting element 221 and the second light emitting element 222 are two light emitting elements of the plurality of light emitting elements 22 mounted at different positions, the incident angle of the first light emitting element 221 corresponding to the irradiation area of the battery 400 to be measured is θ1, the incident angle of the second light emitting element 222 corresponding to the irradiation area of the battery 400 to be measured is θ2, and the incident angles of the first light emitting element and the second light emitting element are different. By installing the light emitting elements 22 at different positions on the tapered inner wall 211 and controlling the light emitting states of the light emitting elements 22 through the light emitting controller, light rays with different incident angles can be irradiated on the surface of the battery 400 to be tested, so that accurate detection of different types of surface defects can be realized.
During installation, the light emitting elements 22 may be fixed on the tapered inner wall 211 of the electrical board 21, the light emitting controller and the light emitting elements 22 are electrically connected and assembled to obtain the electrical board assembly 20, then the electrical board assembly 20 is connected in the accommodating cavity 11 of the housing 10, the housing is looped around the conveying track 300, and one end of the housing is connected to one side of the camera assembly 200.
When the battery 400 to be measured reaches the photographing position of the camera assembly 200 along the conveying track 300 during use, the light-emitting member 22 to be emitted is determined by the light-emitting controller, and the light-emitting member 22 to be emitted is controlled to emit light, so that the light of the corresponding incident angle irradiates the surface of the battery 400 to be measured, and then the surface image of the battery 400 to be measured is photographed by the camera assembly 200. In the practical use process, the shooting width of the camera assembly 200 is limited, the length of the battery 400 to be measured is often longer than the shooting width of the camera assembly 200, when the battery 400 to be measured moves to the shooting position, the light emitting controller can control the light emitting member 22 with a corresponding incident angle to continuously emit light to form a fixed irradiation area, the camera assembly 200 collects images of the irradiation area, the surface of the battery 400 to be measured sequentially passes through the irradiation area along the conveying track 300 to be sequentially illuminated, meanwhile, the camera assembly 200 can collect surface images of a plurality of batteries 400 to be measured, and then image stitching is performed on the collected surface images, so that a complete surface image of the battery 400 to be measured is obtained for subsequent defect detection.
According to the light-emitting device 100 provided by the embodiment of the application, the electrical panel assembly 20 is accommodated in the accommodating cavity 11 of the casing 10, and the casing 10 is arranged around the conveying track 300 for conveying the battery 400 to be detected, when the light-emitting piece 22 in the electrical panel assembly 20 emits light, the light source can uniformly irradiate the circumferential surface of the battery 400 to be detected on the conveying track 300, uneven brightness and illumination on the surface of the battery 400 to be detected can be avoided, the image quality can be improved, the camera assembly 200 can collect a plurality of images in the circumferential direction of the battery 400 to be detected at the same time, and the efficiency of detecting battery defects can be improved; the plurality of light emitting elements 22 are arranged on the conical inner wall 211 of the electric board 21 at intervals, so that the incidence angles of light sources when each light emitting element 22 irradiates the battery 400 to be tested are different, the required incidence angle is determined by the light emitting controller based on the product information of the battery 400 to be tested, and the corresponding target light emitting elements are controlled to emit light, so that defects under different angles are easier to detect, and the accuracy of defect detection is improved.
As shown in fig. 4 and 5, in some embodiments, the electrical board 21 has a first end 212 and a second end 213 opposite to each other, the first end 212 has a larger inner wall dimension than the second end 213, the first end 212 is an end of the electrical board 21 near the camera assembly 200, and the second end 213 is an end of the electrical board 21 far from the camera assembly 200.
The inner wall of the electric board 21 is tapered, and the inner wall size gradually decreases in the direction from the first end 212 to the second end 213, i.e., the closer to the camera assembly 200, the larger the inner wall size.
When the light emitting member 22 is mounted on the tapered inner wall 211, the light emitting surface of the light emitting member 22 faces the surface of the battery 400 to be measured, so that light can be ensured to irradiate the surface of the battery 400 to be measured. Meanwhile, the closer to the camera assembly 200, the larger the inner wall size is, the second light emitting member 222 installed at the position close to the camera assembly 200 will not block the light of the first light emitting member 221 installed at the position far from the camera assembly 200, and the reliability of the light emitting member 22 irradiating the surface of the battery 400 to be measured can be improved.
By adopting the above technical scheme, the closer the inner wall of the electric board 21 is to the camera assembly 200, the larger the corresponding inner wall size is, and the larger the perimeter of the corresponding light-emitting element 22 is, when the light-emitting element 22 irradiates the surface of the battery 400 to be measured, the light can be prevented from being blocked by other light-emitting elements, which is helpful for ensuring the reliability of the light-emitting element 22 irradiating the surface of the battery 400 to be measured.
As shown in fig. 1 and 3, in some embodiments, the inner wall 12 of the housing 10 is tapered and fits into the tapered inner wall 211.
The inner wall 12 is used to securely attach the electrical panel assembly 20. The shape and size of the inner wall 12 are matched with those of the conical inner wall 211, and when the electric board assembly 20 is installed in the accommodating cavity 11, the conical inner wall 211 is attached to the inner wall 12, so that the stability of connection between the electric board assembly 20 and the shell 10 is improved. The closer the inner wall 12 is to the camera assembly 200, the larger its corresponding inner wall size, and the further away from the camera assembly 200, the smaller its corresponding inner wall size.
The inner wall 12 is typically made of a light transmissive material. Such as optical glass, transparent plastic, reflective film, etc. When each light emitting element 22 mounted on the tapered inner wall 211 emits light, light can be irradiated to the surface of the battery 400 to be measured through the inner wall 12. The inner wall 12 is adapted to the tapered inner wall 211, so as to guide the light of the light emitting element 22, so that the light of the light emitting element 22 irradiates the surface of the battery 400 to be tested.
By adopting the above technical scheme, the conical inner wall 12 of the casing 10 can guide the light of the light emitting element 22, so that the light of the light emitting element 22 is uniformly irradiated on the surface of the battery 400 to be measured, and the irradiation effect is improved; the inner wall 12 of the housing 10 is adapted to the tapered inner wall 211 of the electrical panel 21 to facilitate a secure mounting of the electrical panel 21 within the receiving cavity 11 of the housing 10.
As shown in fig. 3 and 4, in some embodiments, the inner wall 12 of the housing 10 has a plurality of first annular grooves 121 for accommodating the light emitting elements 22, and when the electrical panel assembly 20 is disposed in the accommodating cavity 11, one end of the light emitting elements 22 is matched with the first annular grooves 121.
The first annular groove 121 may be a groove-like structure formed by inward depression of the inner wall 12. The number of the first annular grooves 121 is the same as that of the light emitting members 22, and each light emitting member 22 corresponds to one first annular groove 121. The shape and size of the first annular groove 121 are adapted to the shape and size of one end of the luminous element 22. For example, when one end of the light emitting member 22 is semicircular, the first annular groove 121 is also semicircular, and the diameter of the semicircle of the first annular groove 121 is the same as the diameter of the semicircle of the light emitting member 22.
When the electrical panel assembly 20 is disposed in the accommodating cavity 11, one end of the light emitting member 22 is attached to the first annular groove 121. When the light emitting member 22 emits light, the light passes through the first annular groove 121 to irradiate the surface of the battery 400 to be measured, so that the camera assembly 200 can collect images.
In this embodiment, when the light emitting member 22 is disposed in the accommodating cavity 11, one end of the light emitting member 22 is adapted to the first annular groove 121, which is helpful to ensure the relative position of the light emitting member 22 and the housing 10, and avoid the light emitting member 22 sliding in the accommodating cavity 11 to generate a positional deviation.
In some embodiments, the light emitting elements 22 are circular, and each light emitting element 22 is disposed around the tapered inner wall 211.
The light emitting members 22 are uniformly arranged on the surface of the conical inner wall 211 at intervals, and the light emitting surface faces the battery 400 to be tested. Since the battery 400 to be measured is generally cylindrical, the circular light emitting member 22 corresponds to the cylindrical shape of the battery 400 to be measured, and light can be uniformly distributed in the circumferential direction of the battery 400 to be measured.
In this embodiment, the light emitting member 22 is circular, which is helpful for further uniformly irradiating the light to the circumferential surface of the battery 400 to be measured, and improving the uniformity of the brightness of the surface of the battery 400 to be measured, thereby improving the image quality.
As shown in fig. 5 and 6, in some embodiments, the tapered inner wall 211 has a plurality of second annular grooves 2111 for receiving the light emitting elements 22, and the light emitting elements 22 are disposed within the second annular grooves 2111.
The second annular grooves 2111 may be a groove-like structure formed by inward recessing of the tapered inner wall 211, and a plurality of second annular grooves 2111 are uniformly provided on the tapered inner wall 211 at intervals.
The number of the second annular grooves 2111 is the same as that of the light emitting elements 22, and each light emitting element 22 corresponds to one second annular groove 2111. The second annular groove 2111 is shaped and sized to fit the shape and size of the light emitting member 22, and when installed, one end of the light emitting member 22 can fit into the second annular groove 2111. The second annular groove 2111 can limit the position of the luminous element 22, preventing the luminous element 22 from moving along the tapered inner wall 211.
In this embodiment, the light emitting element 22 is disposed in the second annular groove 2111 on the tapered inner wall 211 of the electrical board 21, so that the relative position of the light emitting element 22 on the tapered inner wall 211 can be ensured, which is helpful for firmly connecting the light emitting element 22 to the electrical board 21, and improving the connection stability between the light emitting element 22 and the electrical board 21.
In some embodiments, the light emitting device 100 further includes a rear cover 30, an end of the housing 10 away from the camera assembly 200 is in an opening shape, and the rear cover 30 covers the opening of the housing 10.
The rear cover 30 may be a disk-like or dish-like structure. The rear cover 30 is covered at the opening of the housing 10, and is disposed around the conveying track 300 together with the housing 10, so that the battery 400 to be tested can pass through the rear cover 30 when moving along the conveying track 300.
The rear cover 30 may be fastened to the opening of the housing 10 by a fastening structure, or may be connected to the housing 10 by a thread. For example, screw threads are provided at the openings of the rear cover 30 and the housing 10, and the rear cover 30 is coupled to the opening of the housing 10 by the screw threads.
The rear cover 30 is typically made of a light-impermeable material. Such as opaque plastics, metals, etc. When the rear cover 30 is covered on the housing 10, the rear cover 30 and the housing 10 can enclose to form a closed space, and when the light emitting element 22 is mounted in the accommodating cavity 11 of the housing 10, the light of the light emitting element 22 can only irradiate the battery 400 to be tested through the conical inner wall 211. Meanwhile, the electric board assembly 20 is accommodated in a closed space formed by enclosing the rear cover 30 and the shell 10, so that the electric board assembly 20 can be protected, external vibration or impact and the influence of impurities on the electric board assembly 20 are reduced, and the reliability of the light-emitting device is improved.
In this embodiment, the rear cover 30 covers the opening of the housing 10, so that the electrical board assembly 20 is accommodated in the sealed space formed by the housing 10 and the rear cover 30, light leakage of the light emitting element 22 can be reduced, and light of the light emitting element 22 can be irradiated to the surface of the battery 400 to be tested as much as possible through the housing 10, which is helpful for improving brightness of the surface of the battery 400 to be tested and improving light utilization rate.
As shown in fig. 7, the present application further provides a light emitting method for the light emitting device 100, including:
step 701, obtaining product information of a battery to be tested, and determining a target illuminant corresponding to the product information according to the product information.
Wherein the product information is generally information describing the battery to be tested, the product information may include at least one of the following: the surface material of the battery to be detected, the reflection coefficient of the battery to be detected and the detected defect type.
Here, the surface material of the battery to be measured generally refers to the material of the surface of the battery to be measured. In practice, the materials of the battery surface may include various types, and the reflection degrees of different surface materials are different. For example, the surface of the frosted material is not easy to reflect light, and the surface of the mirror surface material is easy to reflect light.
When the surface material of the battery to be measured is not easy to reflect light, the target luminous element with a low incidence angle can be selected to emit light, and the surface of the battery to be measured is irradiated by adopting light with a low incidence angle, so that the brightness of the surface of the battery to be measured can be improved, the camera can be facilitated to accurately collect the defect image of the surface of the battery to be measured, which is not easy to reflect light, and the accuracy of the surface detection of the battery to be measured is improved. The low angle of incidence is typically an angle of incidence below 45 degrees.
When the surface material of the battery to be measured is easy to reflect light, the target luminous element with a high incidence angle can be selected to emit light, and the surface of the battery to be measured is irradiated by light with the high incidence angle, so that the situation that the image acquired by a camera is overexposed due to the fact that the light irradiates the surface of the battery to be measured, which is easy to reflect light, is avoided, the camera is facilitated to accurately acquire the defect image of the surface of the battery to be measured, and the accuracy of surface detection of the battery to be measured is improved. The high angle of incidence is typically an angle of incidence higher than 45 degrees.
The reflectance of a battery to be measured is generally a coefficient indicating the degree of reflectance of the surface of the battery to be measured, and the easier the surface reflects the greater the corresponding reflectance. The type of defect detected is typically a predetermined type of defect to be detected, e.g., bumps, impurities, etc. The surface defects of the battery to be tested can be clearly displayed only under certain specific incident angle, and the surface defects can not be detected easily due to the fact that the incident angle is too large or too small.
Wherein the target lighting member is one or more of a plurality of lighting members.
In the present embodiment, the execution subject of the above-described light emitting method is generally a light emitting device, and may specifically be a light emitting controller in the light emitting device.
In practice, the product information may be pre-stored information, and the executing body may directly obtain the product information of the battery to be tested from the pre-stored information.
In practice, the surface of the battery to be tested can be stuck with product information, and the executing body can acquire the product information of the battery to be tested in a scanning mode. For example, a two-dimensional code containing product information is stuck on the surface of the battery to be tested, and the executing body obtains the product information of the battery to be tested by scanning the two-dimensional code. For another example, a radio frequency tag is mounted on the surface of the battery to be tested, and the executing body may acquire product information of the battery to be tested by adopting a mode that the scanner scans the radio frequency tag.
And then, the executing body can search the incidence angle corresponding to the product information of the battery to be detected from a pre-established product information-incidence angle corresponding relation table by adopting the obtained product information. The product information-incidence angle correspondence table may be a correspondence table that is pre-established by the execution body and stores correspondence between a plurality of product information and incidence angles. Then, the executing body may use the incident angle to find a target illuminant corresponding to the incident angle from the plurality of illuminants.
Step 702, controlling the target illuminant to illuminate.
In practice, the execution main body can send a lighting instruction to the target lighting element, control the target lighting element to emit light, and simultaneously can send a closing instruction to other lighting elements, control the other lighting elements to be closed, and realize that only the target lighting element emits light, so that the light irradiating the surface of the battery to be tested is the light corresponding to the required incident angle.
According to the light emitting method provided by the embodiment of the application, the required incidence angle is determined based on the product information of the battery to be detected, and the corresponding target light emitting piece is controlled to emit light, so that defects under different angles are easier to detect, image overexposure or insufficient brightness and inconspicuous imaging caused by poor incidence angles of light rays can be avoided, and the accuracy of defect detection is improved.
As shown in fig. 8 and 9, the present application further provides a battery detection apparatus 1000, including the camera assembly 200, and further including the light emitting device 100 described above, where the light emitting device 100 is connected to the camera assembly 200.
The battery detection device 1000 is used for performing surface detection on the battery 400 to be detected, and determining whether the battery 400 to be detected is qualified.
The camera assembly 200 may include a lens and an image processor, collect a surface image of the battery 400 to be tested through the lens, and process the collected image through the image processor to determine whether the battery 400 to be tested is qualified.
The light emitting device 100 is connected to one end of the camera assembly 200 for illuminating the circumferential surface of the battery 400 to be measured so that the camera assembly 200 captures a clear image.
The camera assembly 200 and the light emitting device 100 are both arranged around the conveying track 300, when the battery 400 to be tested slides to the shooting position of the camera assembly 200 along the conveying track 300, the light emitting device 100 can determine a required incident angle based on product information of the battery 400 to be tested, and control the corresponding light emitting piece 22 to emit light, so that the surface of the battery 400 to be tested is irradiated, and the camera assembly 200 collects surface images of the battery 400 to be tested.
According to the battery detection equipment 1000 provided by the embodiment of the application, the required incidence angle is determined based on the product information of the battery 400 to be detected through the light-emitting controller, the corresponding light-emitting piece 22 is controlled to emit light, so that the light of the light-emitting piece 22 penetrates through the shell 10 and irradiates on the surface of the battery 400 to be detected at a certain incidence angle, the camera assembly 200 is used for collecting the surface image of the battery 400 to be detected, so that whether the battery 400 to be detected has defects or not is determined, the defect detection of the battery 400 to be detected is realized, the defects under different angles are easier to detect, and the accuracy of the defect detection is improved.
With continued reference to fig. 8 and 9, in some embodiments, the number of light emitting devices 100 is two, with two light emitting devices 100 symmetrically mounted at opposite ends of the camera assembly 200.
During installation, the two housings 10 may be connected to opposite ends of the camera assembly 200, then the electrical board assembly 20 is accommodated in the accommodating cavity 11 in the housing 10, the plurality of light emitting elements 22 installed on the inner wall of the electrical board 21 are attached to the inner wall 12 of the housing 10, then the rear cover 30 is covered at the opening of the housing 10, and finally the assembled battery detection device 1000 is sleeved on the conveying rail 300, as shown in fig. 2.
In use, the two light emitting devices 100 may be used alone or in combination. When used in combination, the two light emitting devices 100 may illuminate the battery 400 to be tested with light sources of different angles of incidence and different colors. In one photographing period, the two light emitting devices 100 may also select different times to emit light sequentially, and the camera assembly 200 captures an image when each light emitting device 100 emits light.
For example, the two light emitting devices 100 are a first light emitting device and a second light emitting device, in a photographing period, the light emitting time of the first light emitting device is a first time, the light emitting time of the second light emitting device is a second time, the first light emitting device emits light by using a light emitting element corresponding to a first incident angle, the second light emitting device emits light by using a light emitting element corresponding to a second incident angle, the first light emitting device uses an infrared light source, and the second light emitting device uses a blue light source. When the battery 400 to be tested reaches the shooting position of the camera assembly, that is, reaches the first moment in the shooting period, the light-emitting controller can control the infrared light source corresponding to the first incident angle in the first light-emitting device to emit infrared rays, and irradiate the battery 400 to be tested, so that the camera assembly 200 can collect corresponding images, and defects such as sliding marks, damage and the like on the surface of the battery 400 to be tested are detected. When reaching the second moment in the photographing period, the light-emitting controller can control the blue light source corresponding to the second angle to emit light in the second light-emitting device, and irradiate the battery 400 to be tested, so that the camera assembly 200 collects corresponding images, and defects such as pits and protrusions on the surface of the battery 400 to be tested are detected.
In this embodiment, the two light emitting devices 100 can both irradiate the surface of the battery 400 to be tested, when the battery 400 to be tested is tested for defects, the two light emitting devices 100 can be controlled according to the actual use requirement to obtain the required light, which is helpful for improving the detection range of the battery detection device 1000, and the two light emitting devices 100 can mutually cooperate to irradiate the surface of the battery 400 to be tested, so that different types of defects can be detected more easily, and the accuracy of defect detection can be improved.
In the foregoing embodiments, the descriptions of the embodiments are emphasized, and in part, not described or illustrated in any particular embodiment, reference is made to the related descriptions of other embodiments.
The foregoing description of the preferred embodiments of the invention is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the invention.
Claims (10)
1. A light emitting device for illuminating a surface of a battery to be tested for image acquisition by a camera assembly, the light emitting device comprising:
the shell is provided with a containing cavity, the shell is arranged on a conveying track for conveying the battery to be tested in a surrounding mode, and one end of the shell is connected with the camera component;
the electric appliance board assembly is provided with openings at two opposite ends, the electric appliance board assembly is arranged in the accommodating cavity through the two ends of the openings, and the electric appliance board assembly comprises an electric appliance board, a luminous controller and a plurality of luminous pieces electrically connected with the luminous controller;
the inner wall of the electrical panel is conical, the light-emitting parts are arranged on the conical inner wall of the electrical panel at intervals, the incident angles of the light-emitting parts irradiating the surface of the battery to be tested are different, and the light-emitting controller is used for determining a target light-emitting part according to the product information of the battery to be tested and controlling the target light-emitting part to emit light.
2. The lighting apparatus of claim 1, wherein the electrical panel has opposite first and second ends, the first end corresponding to an inner wall dimension that is greater than an inner wall dimension corresponding to the second end, the first end being an end of the electrical panel proximate the camera assembly, and the second end being an end of the electrical panel distal the camera assembly.
3. The lighting device of claim 2, wherein the inner wall of the housing is tapered and is adapted to the tapered inner wall.
4. A lighting device as recited in claim 3, wherein said housing has a plurality of first annular grooves on an inner wall thereof for receiving said light emitting members, and wherein one end of said light emitting members is adapted to said first annular grooves when said electrical panel assembly is disposed in said receiving cavity.
5. The lighting device of claim 2, wherein the lighting elements are circular, and each lighting element is disposed around the tapered inner wall.
6. A light emitting apparatus as recited in claim 5, wherein said tapered inner wall has a plurality of second annular grooves for receiving said light emitting elements, said light emitting elements being disposed within said second annular grooves.
7. The light-emitting device according to any one of claims 1 to 6, further comprising a rear cover, wherein an end of the housing remote from the camera assembly is open, and wherein the rear cover covers the opening of the housing.
8. A light-emitting method for the light-emitting device according to any one of claims 1 to 7, comprising:
obtaining product information of the battery to be tested, and determining a target luminous element corresponding to the product information according to the product information, wherein the product information comprises at least one of the following items: the surface material of the battery to be detected, the reflection coefficient of the battery to be detected and the detected defect type;
and controlling the target luminous element to emit light.
9. A battery detection apparatus comprising a camera assembly, further comprising a light emitting device according to any one of claims 1-7, the light emitting device being connected to the camera assembly.
10. The battery testing apparatus of claim 9, wherein the number of light emitting devices is two, and two of the light emitting devices are symmetrically mounted at opposite ends of the camera assembly.
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| CN202311722572.6A CN117405685A (en) | 2023-12-15 | 2023-12-15 | Light emitting device, light emitting method and battery detection apparatus |
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| CN202311722572.6A CN117405685A (en) | 2023-12-15 | 2023-12-15 | Light emitting device, light emitting method and battery detection apparatus |
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