Battery sheet detection device and light source thereof

Abstract

The application relates to a battery piece detection device and a light source thereof. The light source comprises a box body and a light-emitting assembly. The bottom of the box body is provided with an opening for irradiating light emitted by the light-emitting assembly to a battery piece to be detected. The light-emitting assembly comprises at least one lamp plate installed on the side wall of the box body and located at the edge of the opening. The lamp plate is provided with lamp beads capable of emitting red, green and blue light respectively. During the detection of the battery piece detection device, the light-emitting assembly switches among the red, green and blue working modes respectively. The light-emitting assembly is arranged to emit red, green and blue light. During the detection of the battery piece, the light-emitting assembly switches among the red, green and blue working modes respectively, three photos are taken, and a color photo is obtained by synthesizing the three photos. The color of the battery piece is distinguished through the color photo, so that the appearance and color of the battery piece can be detected simultaneously by the battery piece detection device, the function of the equipment is increased, and the detection efficiency is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to a photovoltaic cell production device, in particular to a cell detection device and a light source thereof. BACKGROUND

[0002] In the screen printing process of the photovoltaic cell production, the appearance of the cell needs to be detected, and the damaged and defective cells are removed to ensure the product quality.

[0003] At present, the method of machine vision is generally used to detect the cell. In order to obtain high-quality pictures, the consistency of the shooting light field needs to be ensured. The conventional cell detection device adopts a single color light source, which can only detect the appearance of the cell and cannot detect the color information of the cell at the same time. SUMMARY

[0004] The present application provides a cell detection device capable of detecting the appearance and color at the same time to solve the problem that the conventional cell detection device cannot detect the appearance and color at the same time. In addition, the present application also provides a light source suitable for the cell detection device.

[0005] In the first aspect, the present application provides a light source for a cell detection device, which comprises a box body and a light emitting assembly; wherein:

[0006] The bottom of the box body is provided with an opening, and the opening is used for irradiating the light emitted by the light emitting assembly to the cell to be detected;

[0007] The light emitting assembly comprises at least one lamp plate installed on the side wall of the box body and located at the edge of the opening; the lamp plate is provided with lamp beads capable of emitting red, green and blue light respectively; and the light emitting assembly switches the red, green and blue working modes respectively in the process of detecting the cell by the cell detection device.

[0008] By setting the light emitting assembly to emit red, green and blue light, the light emitting assembly switches the red, green and blue working modes respectively in the process of detecting the cell, three photos are taken, and a color photo is obtained by combining the three photos. The color of the cell is distinguished through the color photo, so that the cell detection device can detect the appearance and color of the cell at the same time, the function of the equipment is increased, and the detection efficiency is improved.

[0009] Optionally, the lamp plate is provided with three rows of lamp beads, one row of lamp beads close to the cell to be detected emits blue light, and the other two rows of lamp beads emit red light or green light, wherein the red light emitting lamp beads and the green light emitting lamp beads are distributed in cross, so that the red light emitting lamp beads are surrounded by the green light emitting lamp beads, and the green light emitting lamp beads are surrounded by the red light emitting lamp beads.

[0010] Since the battery piece is blue, it is more efficient in reflecting blue light. The blue light lamp beads are placed at the bottom, which can ensure the lowest incident angle of blue light and the least reflection of blue light by the battery piece. The red and green light are placed on the top, and the two kinds of light are crossed, which can ensure that the incident effect of the two kinds of light is basically the same, and the angle is larger than that of the blue light, and the reflection of the battery piece is larger. In this way, the reflection effect of the battery piece on the red, green and blue light is close, so that the restored color effect is better.

[0011] Optionally, the lamp panel is further provided with an angle adjusting mechanism, and the angle adjusting mechanism is used to adjust the lamp panel, so that the lamp panel is in a parallel, forward-leaning or backward-leaning state relative to the side wall of the box.

[0012] The position state of the lamp panel is adjusted by the angle adjusting mechanism, so that the lamp panel can clearly illuminate the battery piece with different grid line heights. The forward-leaning state of the lamp panel is suitable for the battery piece with a high grid line height, and the backward-leaning state is suitable for the battery piece with a low grid line height.

[0013] Optionally, the light-emitting assembly further comprises a lamp panel cover, and the lamp panel cover is installed on the side of the lamp panel facing the inside of the box; the lamp panel cover is used to make the light emitted by the lamp panel be diffused after passing through the lamp panel cover.

[0014] By configuring the lamp panel cover, the light emitted by the lamp panel can be diffused, so that the light is more uniform.

[0015] Optionally, the bottom of the box is further provided with a translation mechanism, and the translation mechanism is used to move the light source along the horizontal direction.

[0016] The position of the light source can be moved by the translation mechanism, so that the light source can clearly illuminate the battery piece.

[0017] Optionally, the side wall of the box is further provided with an operation door.

[0018] By setting the operation door on the box, the operator can conveniently operate the inside of the box through the operation door.

[0019] In the second aspect, the present application provides a battery piece detection device, which comprises a detection mechanism and the light source of any one of the first aspect; wherein:

[0020] The detection mechanism is installed on the box of the light source, and the top of the box is provided with a detection hole; the detection mechanism comprises a camera, and the camera is installed above the detection hole and is configured to shoot the battery piece to be detected below the light source through the detection hole.

[0021] By configuring the light source capable of emitting red, green and blue light, when detecting the battery sheet, three photos can be taken under the red, green and blue light sources respectively, and a color photo can be obtained by synthesizing the three photos, and the color of the battery sheet can be distinguished through the color photo, so that the battery sheet detection device can detect the appearance and color of the battery sheet at the same time, the function of the equipment is increased, and the detection efficiency is improved.

[0022] Optionally, the detection mechanism further comprises a camera support, and the camera is installed on the camera support.

[0023] By setting the camera support, the camera can be more conveniently installed and removed.

[0024] Optionally, the camera support is provided with a height adjusting structure configured to adjust the height position of the camera.

[0025] The height position of the camera is adjusted by the height adjusting structure, so that the camera can take clear photos.

[0026] Optionally, the battery sheet detection device further comprises a camera cover, and the camera cover is installed on the top of the light source and covers the detection mechanism therein.

[0027] By shielding the influence of environmental light through the camera cover, the camera can take high-quality photos, and the detection efficiency is improved. BRIEF DESCRIPTION OF DRAWINGS

[0028] Figure 1 is a perspective structural schematic view of an optional embodiment of the battery sheet detection device in the application.

[0029] Figure 2 is a sectional view of Figure 1 .

[0030] Figure 3 is a partial bottom view of Figure 1 .

[0031] Figure 4 is a partial perspective structural enlarged schematic view of an optional embodiment of the light source in the application.

[0032] Figure 5 is a structural schematic view of the light-emitting assembly in Figure 4 .

[0033] Figure 6a , Figure 6b , Figure 6c is a schematic view of three states of the back light plate adjusted by the angle adjusting mechanism in Figure 4 .

[0034] Figure 7 is a structural schematic view of the translation mechanism in the application.

[0035] Figure 8 This is a cross-sectional view of the detection mechanism in this invention.

[0036] Figures 1 to 8 Including:

[0037] Battery cell testing device 1;

[0038] Light source 10, housing 11, opening 111, operating door 112, detection hole 113, light-emitting component 12, lamp board 121, lamp bead 122, angle adjustment mechanism 123, lamp board cover 124, translation mechanism 13, blue light bead 141, green light bead 142, red light bead 143;

[0039] 20. Testing mechanism; 21. Camera; 22. Camera bracket; 23. Height adjustment structure; 24. Camera cover. Detailed Implementation

[0040] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0041] like Figures 1 to 3 As shown, this invention is a solar cell inspection device 1 used in the screen printing process of solar cell production to perform appearance and color inspection on the solar cells. The solar cell inspection device 1 mainly includes a light source 10 and an inspection mechanism 20. The light source 10 is used to provide illumination, and the inspection mechanism 20 is used to inspect the solar cells, typically by taking pictures of them.

[0042] As an optional implementation method, such as Figure 1 , Figure 2 As shown, the light source 10 includes a housing 11 and a light-emitting component 12.

[0043] The bottom of the housing 11 is provided with an opening 111, which is used to allow the light emitted by the light-emitting component 12 to illuminate the battery cell to be tested.

[0044] The light-emitting component 12 includes at least one lamp plate 121 mounted on the side wall of the housing 11 and located at the edge of the opening 111. For example... Figure 5 As shown, LED beads 122 capable of emitting red, green, and blue light are installed on the light panel 121. During the process of the battery cell detection device 1 detecting the battery cells, the light-emitting component 12 switches between three working modes: red, green, and blue, and the light-emitting component 12 illuminates the battery cells with the three colors of light in turn.

[0045] By setting the light-emitting assembly 12 to emit red, green and blue light, when detecting the battery sheet, the light-emitting assembly switches among the three working modes of red, green and blue respectively, takes three photos, and then combines the three photos to obtain a color photo by software, and the color of the battery sheet is distinguished through the color photo, so that the battery sheet detection device 1 can simultaneously detect the appearance and color of the battery sheet, increase the function of the equipment, and improve the detection efficiency.

[0046] Optionally, three rows of lamp beads 122 are installed on the lamp panel 121, and the row of lamp beads 122 close to the battery sheet to be detected emits blue light, which is the blue light lamp bead 141 (as shown in the dashed straight line in FIG. 4) ; the other two rows of lamp beads emit red light or green light, which are the red light lamp bead 142 (as shown in the dotted and dashed line in FIG. 4) or the green light lamp bead 143 (as shown in the double dotted and dashed line in FIG. 4), wherein the lamp beads emitting red light and the lamp beads emitting green light are distributed in a staggered manner, so that the lamp beads emitting red light are surrounded by the lamp beads emitting green light, and the lamp beads emitting green light are surrounded by the lamp beads emitting red light. Figure 5 Figure 5 Figure 5

[0047] Since the battery sheet is blue, it has higher reflection efficiency for blue light. The blue light lamp bead 141 is placed at the bottom to ensure the lowest incident angle of blue light, and the battery sheet reflects the least blue light. The red light lamp bead 142 and the green light lamp bead 143 are placed above, and are placed in a staggered manner to ensure that the incident effects of the two kinds of light are basically the same, and the angles are larger than that of the blue light, and the reflection of the battery sheet is larger. In this way, the reflection effects of the battery sheet on the red, green and blue light are close, so that the restored color effect is better.

[0048] Since the lamp panel 121 is placed on the side, it is different from the common horizontal placement. The lamp panel 121 is placed on the side, and the light is emitted from the side, so that part of the low-angle light can hit the battery sheet, and therefore the small protrusions and defects formed by the protrusions on the battery sheet, such as touchable scratches and dirt, can be photographed. Moreover, the low-angle light can light up the side edges of the grid lines on the battery sheet, so that the photographed grid lines are clearer, and the imaging quality is better.

[0049] Since the sizes of different battery sheets and the heights of printed grid lines are different, in an optional embodiment, the lamp panel 121 is further provided with an angle adjusting mechanism 123, which is used to adjust the angle of the lamp panel 121, so that the lamp panel 121 is in a parallel, forward-leaning or backward-leaning state relative to the side wall of the box body 11. Figure 6a The normal state of the lamp panel 121 is parallel to the side wall; Figure 6b The forward-leaning state of the lamp panel 121; Figure 6c The backward-leaning state of the lamp panel 121.

[0050] ​​​Optionally, the angle adjusting mechanism 123 is configured to manually adjust the lamp plate 121, and the lamp plate adjusting screw is twisted to incline the lamp plate 121 forward or backward.

[0051] The position of the lamp plate 121 is adjusted by the angle adjusting mechanism 123, so that the lamp plate 121 can clearly illuminate the battery piece with different grid line heights. The forward inclination of the lamp plate 121 is suitable for the battery piece with high grid line height, and the backward inclination is suitable for the battery piece with low grid line height.

[0052] As shown in Figure 3 , Figure 4 Optionally, the light emitting assembly 12 further comprises a lamp plate cover 124, which is installed on the side of the lamp plate 121 facing the inside of the box 11. The lamp plate cover 124 is used to make the light emitted by the lamp plate 121 be diffused after passing through the lamp plate cover 124.

[0053] By configuring the lamp plate cover 124, the light emitted by the lamp plate 121 can be diffused, so that the light is more uniform.

[0054] As shown in Figure 1 , Figure 2 and Figure 7 Optionally, the bottom of the box 11 is further provided with a translation mechanism 13, which is used to move the light source 10 in the horizontal direction. Optionally, the translation mechanism 13 adopts a guide rail and sliding sleeve structure.

[0055] The position of the light source 10 can be moved by the translation mechanism 13, so that the light source 10 can clearly illuminate the battery piece.

[0056] As shown in Figure 1 , Figure 2 Optionally, the sidewall of the box 11 is further provided with an operation door 112.

[0057] By providing the operation door 112 on the box 11, the operator can conveniently operate the inside of the box 11 through the operation door 112.

[0058] As an optional embodiment, as shown in Figure 1 , Figure 2 and Figure 8 The detection mechanism 20 is installed on the box 11 of the light source 10, and the top of the box 11 is provided with a detection hole 113. The detection mechanism 20 comprises a camera 21, which is installed above the detection hole 113 and is configured to shoot the battery piece to be detected below the light source 10 through the detection hole 113.

[0059] By configuring the light source 10 capable of emitting red, green and blue light, when the battery sheet detection device 1 detects the battery sheet, three photos can be taken under the red, green and blue light sources 10 respectively, and a color photo can be obtained by synthesizing the three photos, and the color of the battery sheet can be distinguished through the color photo, so that the battery sheet detection device 1 can simultaneously detect the appearance and color of the battery sheet, increase the function of the equipment, and improve the detection efficiency.

[0060] Optionally, the detection mechanism 20 further comprises a camera support 22, and the camera 21 is installed on the camera support 22.

[0061] By setting the camera support 22, the camera 21 can be more conveniently installed and removed.

[0062] Optionally, the camera support 22 is provided with a height adjusting structure 23, and the height adjusting structure 23 is configured to adjust the height position of the camera 21. Optionally, the height adjusting structure 23 adopts a vertical long circular hole provided on the camera support 22, and the camera 21 is fixed on the camera support 22 by a threaded fastener passing through the long circular hole, and the height of the camera 21 can be adjusted by loosening the threaded fastener, and after being adjusted to a suitable height, the threaded fastener is tightened.

[0063] By adjusting the height position of the camera 21 through the height adjusting structure 23, the camera 21 can take clear photos.

[0064] Optionally, the battery sheet detection device 1 further comprises a camera cover 24, and the camera cover 24 is installed on the top of the light source 10 and covers the detection mechanism 20 therein.

[0065] By shielding the influence of environmental light through the camera cover 24, the camera 21 can take high-quality photos, and the detection efficiency is improved.

[0066] The above is a sufficiently detailed description of the present application with certain particularity. Those skilled in the art should understand that the description in the embodiments is only exemplary, and all changes made without departing from the true spirit and scope of the present application should belong to the protection scope of the present application. The scope of protection claimed by the present application is defined by the claims, not by the above description in the embodiments.

Claims

1. A light source for a battery sheet inspection apparatus, characterized by comprising: The light source comprises a box body and a light-emitting assembly; wherein: The bottom of the box body is provided with an opening for the light emitted by the light-emitting assembly to irradiate on the battery piece to be detected; The light-emitting assembly comprises at least one lamp plate installed on the side wall of the box body and located at the edge of the opening; the lamp plate is provided with lamp beads capable of emitting red, green and blue light respectively; during the detection of the battery piece by the battery piece detection device, the light-emitting assembly switches among the red, green and blue working modes respectively; The lamp plate is provided with three rows of lamp beads, one row of which emits blue light close to the battery piece to be detected, and the other two rows emit red or green light; the red light-emitting lamp beads are distributed in the green light-emitting lamp beads alternately, so that the red light-emitting lamp beads are surrounded by the green light-emitting lamp beads, and the green light-emitting lamp beads are surrounded by the red light-emitting lamp beads; The lamp plate is further provided with an angle adjusting mechanism for adjusting the lamp plate to be parallel, forward inclined or backward inclined relative to the side wall of the box body; The light-emitting assembly further comprises a lamp plate cover installed on the side of the lamp plate facing the inside of the box body; the lamp plate cover is used for making the light emitted by the lamp plate to be diffusely reflected after passing through the lamp plate cover.

2. The light source of claim 1, wherein The bottom of the box body is further provided with a translation mechanism for moving the light source along the horizontal direction.

3. The light source of claim 1, wherein The side wall of the box body is further provided with an operation door.

4. A battery sheet detection device, characterized by, The battery piece detection device comprises a detection mechanism and the light source according to any one of claims 1-3; wherein: The detection mechanism is installed on the box body of the light source, and the top of the box body is provided with a detection hole; the detection mechanism comprises a camera installed above the detection hole, which is configured to shoot the battery piece to be detected below the light source through the detection hole.

5. The battery sheet detection device of claim 4, wherein, The detection mechanism further comprises a camera support on which the camera is installed.

6. The battery sheet detection device of claim 5, wherein The camera support is provided with a height adjusting structure configured to adjust the height position of the camera.

7. The battery sheet detection device of claim 4, wherein The battery piece detection device further comprises a camera cover installed on the top of the light source and covering the detection mechanism therein.

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