Photoluminescence uniformity detection device

Abstract

The utility model relates to the technical field of luminescence detection devices, in particular to a photoluminescence uniformity detection device. The solar cell panel clamping mechanism is connected to the rack through an XY double-axis moving module, so that a solar cell panel body can move in the X direction and the Y direction after being clamped; the CCD camera is connected to the moving seat, the moving seat can be driven by the driving part to move in the Z direction, light is projected to the solar cell panel body through the projection light source, local light emitting of the solar cell panel is excited, the light emitting part is just the shooting area of the CCD camera, and the light emitting part is driven by the XY double-axis moving module to emit light in the Z direction. The projection light and the CCD camera can relate to each area of the solar cell panel body, so that efficient and all-around photoluminescence uniformity detection of the solar cell panel body is realized.

Description

Technical Field

[0001] The utility model relates to the technical field of luminescence detection devices, in particular to a photoluminescence uniformity detection device. Background Art

[0002] Photoluminescence is a phenomenon of luminescence caused by the use of light to excite luminescent materials. After solids absorb external energy, they are often converted into heat. They do not emit light under all circumstances. They can only emit light effectively when there are luminescence centers in the solids. Luminescence centers are usually composed of impurity ions and lattice defects. After absorbing external energy, luminescence centers are excited from the machine to the excited state. When they return to the ground state from the excited state, they release energy in the form of light.

[0003] How to quickly detect the quality of solar cells during production is a technical problem that needs to be solved urgently. Photoluminescence detection uses light to illuminate the material, excite the electrons in the material to an excited state, and then emit light when the excited state returns to the ground state. The internal defect information of the material is obtained by observing the luminescence state of the material.

[0004] There is an urgent need to develop a photoluminescence uniformity detection device specifically for solar cells, which can be used to efficiently detect whether there are uniformity defects inside the crystal of the solar cell. Utility Model Content

[0005] The technical problem to be solved by the utility model is that it is urgent to develop a photoluminescence uniformity detection device dedicated to solar cells, which is used to efficiently detect whether there are uniformity defects inside the crystal of the solar cell.

[0006] In order to solve the above technical problems, the technical solution adopted by the utility model is:

[0007] A photoluminescence uniformity detection device, comprising:

[0008] frame;

[0009] An XY biaxial moving module, wherein the XY biaxial moving module is connected to the frame;

[0010] A solar panel clamping mechanism, wherein the solar panel clamping mechanism is connected to the XY dual-axis moving module, and the solar panel is used to clamp the solar panel body;

[0011] A movable frame, the movable frame is located above the solar panel clamping mechanism, and the movable frame is movably connected to the frame along the Z direction;

[0012] A driving member, the driving member is connected between the frame and the moving frame, and is used to drive the moving frame to move along the Z direction;

[0013] A CCD camera, wherein the CCD camera is connected to the mobile frame, and the projection direction of the CCD camera is vertically downward;

[0014] A projection light source is rotatably connected to the movable frame, the rotation axis of the projection light source is the X direction, and the projection direction of the projection light source is perpendicular to the X direction.

[0015] Furthermore, in the above-mentioned photoluminescence uniformity detection device structure, the driving member is a telescopic cylinder, the cylinder body of the telescopic cylinder is connected to the frame, and the moving frame is connected to the piston rod of the telescopic cylinder.

[0016] Furthermore, in the above-mentioned photoluminescence uniformity detection device structure, the telescopic cylinder is an electric push cylinder, a hydraulic cylinder or a pneumatic cylinder.

[0017] Furthermore, in the above-mentioned photoluminescence uniformity detection device structure, the projection light source is an LED light source.

[0018] Furthermore, in the above-mentioned photoluminescence uniformity detection device structure, the number of the projection light sources is 2, and the 2 projection light sources are symmetrically distributed on both sides of the CCD camera;

[0019] Furthermore, the above-mentioned photoluminescence uniformity detection device structure further includes a driving motor, and the output shaft of the driving motor is drivingly connected to the projection light source for driving the projection light source to rotate.

[0020] Furthermore, the above-mentioned photoluminescence uniformity detection device structure also includes a long-wave filter, which is connected to the moving frame and is located below the CCD camera.

[0021] Further, in the above-mentioned structure of the photoluminescence uniformity detection device, the solar cell panel clamping mechanism includes a fixed clamping member and a movable clamping member, and the movable clamping member can be movably connected to the fixed clamping member along the Y direction; the fixed clamping member is provided with a guide column extending in the Y direction, and the fixed clamping member is rotatably connected with a screw rod in the Y direction, the movable clamping member is provided with a through hole slidingly matched with the guide column, the movable clamping member is provided with a threaded hole threadably matched with the screw rod, and the Y-direction end of the screw rod is connected to a hand wheel, the fixed clamping member includes a first support plate and a first clamping protrusion connected to the upper part of the Y-direction reverse end of the first support plate, and the movable clamping member includes a second support plate and a second clamping protrusion connected to the upper part of the Y-direction end of the second support plate.

[0022] The beneficial effects of the utility model are as follows: the solar panel clamping mechanism is connected to the frame through the XY dual-axis moving module, so that the solar panel body can move in the X direction and the Y direction after being clamped on the solar panel clamping mechanism; the CCD camera is connected to the moving seat, and the moving seat can move in the Z direction driven by the driving member, so as to achieve the height adjustment function of the CCD camera, and the projection light source is used to project light to the solar panel body to stimulate local luminescence of the solar panel, and the luminous part is exactly the shooting area of ​​the CCD camera. Since the moving seat can adjust the projection light source by rotating during the lifting and lowering adjustment process, it can be ensured that the projection light source can project light to the shooting area of ​​the CCD camera when the CCD camera is at any height, and driven by the XY dual-axis moving module, the projection light and the CCD camera can involve each area of ​​the solar panel body, thereby realizing efficient and comprehensive photoluminescence uniformity detection of the solar panel body. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a structural schematic diagram of a photoluminescence uniformity detection device according to a specific embodiment of the utility model;

[0024] Figure 2 for Figure 1 A magnified view of part A;

[0025] Description of labels:

[0026] 1. Frame;

[0027] 2. XY dual-axis moving module; 21. First screw guide module; 22. Second screw guide module;

[0028] 3. Solar panel clamping mechanism; 31. Fixed clamping member; 311. First support plate; 312. First clamping convex edge; 32. Movable clamping member; 321. Second support plate; 322. Second clamping convex edge; 33. Guide column; 34. Screw rod; 341. Hand wheel;

[0029] 4. Solar panel body;

[0030] 5. Telescopic cylinder;

[0031] 6. CCD camera;

[0032] 7. Projection light source;

[0033] 8. Driving motor;

[0034] 9. Long wave filter. DETAILED DESCRIPTION

[0035] In order to explain the technical content, achieved objectives and effects of the present invention in detail, the following is an explanation in conjunction with the implementation modes and the accompanying drawings.

[0036] Please refer to Figure 1 as well as Figure 2 The specific implementation of the utility model relates to a photoluminescence uniformity detection device, comprising:

[0037] Rack 1;

[0038] An XY biaxial moving module 2, wherein the XY biaxial moving module 2 is connected to the frame 1;

[0039] A solar panel clamping mechanism 3, wherein the solar panel clamping mechanism 3 is connected to the XY dual-axis moving module 2, and the solar panel is used to clamp the solar panel body 4;

[0040] A mobile frame, the mobile frame is located above the solar panel clamping mechanism 3, and the mobile frame is movably connected to the frame 1 along the Z direction;

[0041] A driving member, which is connected between the frame 1 and the moving frame and is used to drive the moving frame to move along the Z direction;

[0042] A CCD camera 6, wherein the CCD camera 6 is connected to the mobile frame, and the projection direction of the CCD camera 6 is vertically downward;

[0043] The projection light source 7 is rotatably connected to the moving frame, the rotation axis of the projection light source 7 is the X direction, and the projection direction of the projection light source 7 is perpendicular to the X direction.

[0044] In the above embodiment, the XY dual-axis movable module 2 includes a first screw guide module 21 and a second screw guide module 22, the first screw guide module 21 is connected to the frame 1, the first screw guide module 21 is slidably connected to the first slider, the moving direction of the first slider is the Y direction, the second screw guide module 22 is connected to the first slider, the second slider is slidably connected to the second screw guide module 22, and the solar panel clamping mechanism 3 is connected to the second slider.

[0045] In the above embodiment, the solar panel clamping mechanism 3 is connected to the frame 1 through the XY dual-axis moving module 2, so that the solar panel body 4 can move in the X direction and the Y direction after being clamped on the solar panel clamping mechanism 3; the CCD camera 6 is connected to the moving seat, and the moving seat can move in the Z direction driven by the driving member, so as to achieve the height adjustment function of the CCD camera 6, and the projection light source 7 projects light to the solar panel body 4 to stimulate local luminescence of the solar panel, and the luminous part is exactly the shooting area of ​​the CCD camera 6. Since the moving seat can adjust the projection light source 7 by rotating it during the lifting and lowering adjustment process, it can ensure that the projection light source 7 can project light to the shooting area of ​​the CCD camera 6 when the CCD camera 6 is at any height, and driven by the XY dual-axis moving module 2, the projection light and the CCD camera 6 can involve each area of ​​the solar panel body 4, thereby realizing efficient and comprehensive photoluminescence uniformity detection of the solar panel body 4.

[0046] As a preferred embodiment, the driving member is a telescopic cylinder 5 , a cylinder body of the telescopic cylinder 5 is connected to the frame 1 , and the moving frame is connected to the piston rod of the telescopic cylinder 5 .

[0047] As a preferred embodiment, the telescopic cylinder 5 is an electric push cylinder, a hydraulic cylinder or a pneumatic cylinder, preferably a pneumatic cylinder.

[0048] As a preferred embodiment, the projection light source 7 is an LED light source.

[0049] As a preferred implementation, the number of the projection light sources 7 is two, and the two projection light sources 7 are symmetrically distributed on both sides of the CCD camera 6 .

[0050] As a preferred embodiment, it further comprises a driving motor 8 , the output shaft of which is drivingly connected to the projection light source 7 for driving the projection light source 7 to rotate.

[0051] As a preferred embodiment, a long-wave filter 9 is further included, and the long-wave filter 9 is connected to the mobile frame and is located below the CCD camera 6. The long-wave filter 9 is used to filter the excitation light with a shorter wavelength, and only allows the photoluminescence of the solar panel with a longer wavelength to pass through the long-wave filter 9 and be collected by the CCD camera 6.

[0052] As a preferred embodiment, the solar panel clamping mechanism 3 includes a fixed clamping member 31 and a movable clamping member 32, and the movable clamping member 32 can be movably connected to the fixed clamping member 31 along the Y direction; the fixed clamping member 31 is provided with a guide column 33 extending in the Y direction, and the fixed clamping member 31 is rotatably connected to the Y direction with a screw rod 34, the movable clamping member 32 is provided with a through hole slidingly matched with the guide column 33, the movable clamping member 32 is provided with a threaded hole threadably matched with the screw rod 34, and the Y-direction end of the screw rod 34 is connected to a hand wheel 341, the fixed clamping member 31 includes a first support plate 311 and a first clamping flange 312 connected to the upper part of the Y-direction reverse end of the first support plate 311, and the movable clamping member 32 includes a second support plate 321 and a second clamping flange 322 connected to the upper part of the Y-direction end of the second support plate 321.

[0053] Through the above structure, the movable clamping plate can be controlled to move in the Y direction or the reverse direction of the Y direction by rotating the hand wheel 341, thereby adjusting the distance between the first clamping protrusion 312 and the second clamping protrusion 322, so as to be suitable for clamping and positioning solar cell panel bodies 4 of different widths.

[0054] The above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent transformations made using the contents of the specification and drawings of the present invention, or directly or indirectly applied in the relevant technical field, are also included in the patent protection scope of the present invention.

Claims

1. A photoluminescence uniformity detection device, characterized in that: include: frame; An XY biaxial moving module, wherein the XY biaxial moving module is connected to the frame; A solar panel clamping mechanism, wherein the solar panel clamping mechanism is connected to the XY dual-axis moving module, and the solar panel is used to clamp the solar panel body; A movable frame, the movable frame is located above the solar panel clamping mechanism, and the movable frame is movably connected to the frame along the Z direction; A driving member, the driving member is connected between the frame and the moving frame, and is used to drive the moving frame to move along the Z direction; A CCD camera, wherein the CCD camera is connected to the mobile frame, and the projection direction of the CCD camera is vertically downward; A projection light source is rotatably connected to the movable frame, the rotation axis of the projection light source is the X direction, and the projection direction of the projection light source is perpendicular to the X direction.

2. The photoluminescence uniformity detection device according to claim 1, characterized in that: The driving member is a telescopic cylinder, a cylinder body of the telescopic cylinder is connected to a frame, and the moving frame is connected to a piston rod of the telescopic cylinder.

3. The photoluminescence uniformity detection device according to claim 2, characterized in that: The telescopic cylinder is an electric push cylinder, a hydraulic cylinder or a pneumatic cylinder.

4. The photoluminescence uniformity detection device according to claim 1, characterized in that: The projection light source is an LED light source.

5. The photoluminescence uniformity detection device according to claim 1, characterized in that: The number of the projection light sources is 2, and the 2 projection light sources are symmetrically distributed on both sides of the CCD camera.

6. The photoluminescence uniformity detection device according to claim 1, characterized in that: It also includes a driving motor, the output shaft of which is drivingly connected to the projection light source and is used to drive the projection light source to rotate.

7. The photoluminescence uniformity detection device according to claim 1, characterized in that: It also comprises a long wave filter, which is connected to the moving frame and is located below the CCD camera.

8. The photoluminescence uniformity detection device according to claim 1, characterized in that: The solar panel clamping mechanism includes a fixed clamping member and a movable clamping member, the movable clamping member can be movably connected to the fixed clamping member along the Y direction; the fixed clamping member is provided with a guide column extending in the Y direction, the fixed clamping member is rotatably connected with a screw rod in the Y direction, the movable clamping member is provided with a through hole slidingly matched with the guide column, the movable clamping member is provided with a threaded hole threadably matched with the screw rod, the Y-direction end of the screw rod is connected to a hand wheel, the fixed clamping member includes a first support plate and a first clamping protrusion connected to the upper part of the Y-direction reverse end of the first support plate, and the movable clamping member includes a second support plate and a second clamping protrusion connected to the upper part of the Y-direction end of the second support plate.

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