Photovoltaic cell piece LID test equipment

Abstract

The utility model relates to the technical field of battery piece production, in particular to photovoltaic battery piece LID testing equipment which comprises a box body, an LED light source set and a heating platform set, the LED light source set and the heating platform set are both arranged in the box body, and the LED light source set and the heating platform set are arranged in the box body. The LED light source group is arranged right above the heating platform group, the LED light source group comprises two LED light source pieces, and the heating platform group comprises two heating battery piece carrying tables; according to the utility model, the LID test equipment is arranged on the battery production line, so that the problem that the battery piece can be tested in a short time on the production line is solved; by arranging the limiting stop blocks, the effect of directly placing subsequent battery pieces is achieved, the labor intensity of detecting the battery pieces is greatly reduced, and the detection efficiency is improved; through the arrangement of the test rod, the detection of unified height, angle and position is realized, the error is greatly reduced, and the detection precision is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of battery chip production, and more specifically, to a LID testing device for photovoltaic battery chips. Background Art

[0002] During the production process of battery chips, LID testing is a crucial link in solar power plants. It is based on the phenomenon of efficiency loss caused by lattice defects in the production process of polycrystalline silicon solar cell modules. Therefore, after the production of photovoltaic modules is completed, LID testing can obtain the true efficiency and service life of the modules. The basic principle of LID testing is to place the photovoltaic module under low irradiance conditions, such as an irradiance of 50 W / m2, and then conduct IV testing on it. The LID testing devices in related technologies mainly target the LID optical attenuation testing of modules. The LID testing device specifically for battery chips requires a relatively long testing time and is mostly placed in the laboratories of various companies, and the LID of battery chips cannot be tested on the production line.

[0003] Therefore, it is necessary to provide a LID testing device for photovoltaic battery chips used on the production line. Summary of the Utility Model

[0004] The utility model provides a LID testing device for photovoltaic battery chips to solve the above technical problems.

[0005] To achieve the above purpose, an embodiment of the utility model provides a LID testing device for photovoltaic battery chips, including: a box body, an LED light source group, and a heating platform group. The LED light source group and the heating platform group are both arranged in the box body. The LED light source group is arranged directly above the heating platform group. The LED light source group includes two LED light source components, and the heating platform group includes two heating battery chip carriers, and the LED light source components correspond to the heating battery chip carriers one by one.

[0006] Further, an electrical cabinet is installed on one side surface of the box body.

[0007] Further, the box body includes a support frame, and the support frame includes a plurality of horizontal support rods, a plurality of vertical support rods, and a plurality of longitudinal support rods. Adjacent horizontal support rods, vertical support rods, and longitudinal support rods are fixedly connected by right-angle mounting angle pieces.

[0008] Further, cantilever rods are installed on two of the vertical support rods, and the LED light source components are sleeved on the cantilever rods.

[0009] Further, the heating battery chip carriers are fixed on a plurality of the longitudinal support rods.

[0010] Further, a transverse slide bar is installed on three adjacent ones of the transverse support bars, and a test bar is arranged on the transverse slide bar through a slider.

[0011] Further, a positioning ring is fixed to the bottom surface of the test bar, a tightening ring is arranged on the inner wall of the positioning ring, and the tightening ring is made of an elastic material.

[0012] Further, the heating battery sheet stage includes a supporting sheet, and a plurality of positioning holes are formed in the supporting sheet.

[0013] Further, a positioning short column is arranged in one of the positioning holes, and a limiting stop block is integrally arranged at the top of the positioning short column.

[0014] Further, a right-angle groove is formed in the limiting stop block.

[0015] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0016] By arranging an LID testing device on the battery production line, the problem that the battery sheets can be tested on the production line in a short time is solved;

[0017] By arranging the limiting stop block, the effect of directly placing the subsequent battery sheets is realized, the labor intensity of detecting the battery sheets is greatly reduced, and the detection efficiency is improved;

[0018] By arranging the test bar, the detection with unified height, angle and position is realized, the error is greatly reduced, and the detection accuracy is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The following further illustrates the present utility model in conjunction with the drawings and embodiments.

[0020] Figure 1 It is a perspective view of the optimal embodiment of a photovoltaic cell LID testing device;

[0021] Figure 2 It is a schematic structural diagram of the optimal embodiment of the test bar of the present utility model;

[0022] Figure 3 It is a schematic structural diagram of the optimal embodiment of the supporting sheet of the present utility model;

[0023] Figure 4 It is a schematic structural diagram of the optimal embodiment of the limiting stop block of the present utility model.

[0024] Among them, 1. Box body; 11. Support frame; 12. Cantilever rod; 13. Transverse slide bar; 2. LED light source group; 3. Heating platform group; 31. Support piece; 32. Positioning hole; 33. Limit stop; 34. Positioning short column; 35. Right-angle groove; 4. Electrical cabinet; 5. Test rod; 51. Slide block; 52. Positioning ring; 53. Tightening ring. Detailed implementation mode

[0025] Now, the present utility model will be further described in detail with reference to the accompanying drawings. These drawings are all simplified schematic diagrams, only showing the basic structure of the present utility model in a schematic manner, so they only show the components related to the present utility model.

[0026] Example 1, please refer to Figure 1 , Figure 1 is a three-dimensional view of the optimal embodiment of a photovoltaic cell LID test device. As Figure 1 shown, this embodiment provides a photovoltaic cell LID test device, including: a box body 1, an LED light source group 2 and a heating platform group 3. The LED light source group 2 and the heating platform group 3 are both arranged in the box body 1. An electrical cabinet 4 is installed on one side surface of the box body 1. The LID test device is placed on the battery production line. When the battery processing is completed and spot-checking is carried out, after the heating platform group 3 is adjusted to the required temperature and the light intensity of the LED light source group 2 is also adjusted, the battery is placed on the heating platform group 3, the LED light source group 2 is turned on, and after reaching the set duration, the center position of the battery is detected by holding a light meter, solving the problem that the battery can be tested on the production line in a short time.

[0027] Please continue to refer to Figure 1 . As Figure 1 shown, in order to improve the detection efficiency and facilitate later data comparison, each LID test device is provided with two groups of LED light source components and heating battery carriers. Specifically, the LED light source group 2 is arranged directly above the heating platform group 3. The LED light source group 2 includes two LED light source components, and the heating platform group 3 includes two heating battery carriers. The LED light source components correspond to the heating battery carriers one by one.

[0028] Please continue to refer to Figure 1 . As Figure 1 shown, the box body 1 includes a support frame 11. The support frame 11 includes a plurality of transverse support rods, a plurality of vertical support rods and a plurality of longitudinal support rods. The adjacent transverse support rods, vertical support rods and longitudinal support rods are fixedly connected by right-angle mounting angle pieces. Two of the vertical support rods are provided with cantilever rods 12, and the LED light source components are sleeved on the cantilever rods 12. The heating battery carriers are fixed on some of the longitudinal support rods. Specifically, the LED light source components can be removed from the cantilever rods 12, which is not only convenient for adjusting the position but also for replacing the light source.

[0029] Embodiment 2. Please refer to Figure 1 . As Figure 1 shown, this embodiment provides a LID test device for photovoltaic cells, including: a box body 1, an LED light source group 2, and a heating platform group 3. The LED light source group 2 and the heating platform group 3 are both arranged inside the box body 1. An electrical cabinet 4 is installed on one side surface of the box body 1. The LID test device is placed on the battery production line. When the battery processing is completed and spot-checking is carried out, the heating platform group 3 is adjusted to the required temperature, and after the light intensity of the LED light source group 2 is also adjusted, the battery is placed on the heating platform group 3, the LED light source group 2 is turned on, and after reaching the set duration, the battery is detected by a light meter, solving the problem that the battery can be tested on the production line in a short time.

[0030] Please continue to refer to Figure 1 . As Figure 1 shown, in order to improve the detection efficiency and facilitate later data comparison, each LID test device is provided with two groups of LED light source components and heating battery carriers. Specifically, the LED light source group 2 is arranged directly above the heating platform group 3. The LED light source group 2 includes two LED light source components, and the heating platform group 3 includes two heating battery carriers, and the LED light source components correspond to the heating battery carriers one by one.

[0031] Please continue to refer to Figure 1 . As Figure 1 shown, the box body 1 includes a support frame 11. The support frame 11 includes a plurality of horizontal support rods, a plurality of vertical support rods, and a plurality of longitudinal support rods. The adjacent horizontal support rods, vertical support rods, and longitudinal support rods are fixedly connected by right-angle mounting angle pieces. Two of the vertical support rods are provided with cantilever rods 12, and the LED light source components are sleeved on the cantilever rods 12. The heating battery carriers are fixed on a plurality of the longitudinal support rods. Specifically, the LED light source components can be removed from the cantilever rods 12, which is not only convenient for adjusting the position but also convenient for replacing the light source.

[0032] Please continue to refer to Figure 1 and combine with Figure 3 and Figure 4 , Figure 3 is a schematic structural diagram of the optimal embodiment of the support piece of the present invention; Figure 4 is a schematic structural diagram of the optimal embodiment of the limit stop of the present invention. As Figure 1 , Figures 3 to 4 shown. As Figure 1As shown in the figure, in order to only need to position a battery cell once when detecting the same type of battery cell, and then directly place the subsequent battery cells for detection, the heating battery cell stage includes a wafer support 31, and a plurality of positioning holes 32 are formed in the wafer support 31. A positioning stud 34 is arranged in one of the positioning holes 32, and a limiting block 33 is integrally arranged at the top of the positioning stud 34. A right-angle groove 35 is formed in the limiting block 33. The right-angle groove 35 is used to abut against one of the corners of the battery cell. In this way, before detecting the same type of battery cell, only the center of the first battery cell needs to be positioned. After the position is determined, the battery cell is placed on the wafer support 31, and the positioning stud 34 is inserted into the positioning hole 32 at a suitable position, so as to achieve the effect of directly placing the subsequent battery cells, greatly reducing the labor intensity of detecting the battery cells and improving the detection efficiency.

[0033] Embodiment 3. Please refer to Figure 1 . As Figure 1 shown, this embodiment provides a photovoltaic battery cell LID test device, including: a box body 1, an LED light source group 2 and a heating platform group 3. The LED light source group 2 and the heating platform group 3 are both arranged in the box body 1. An electrical cabinet 4 is installed on one side surface of the box body 1. The LID test device is placed on the battery cell production line. When the battery cell processing is completed and spot-checking is carried out, the heating platform group 3 is adjusted to the required temperature, and the light intensity of the LED light source group 2 is also adjusted. Then the battery cell is placed on the heating platform group 3, the LED light source group 2 is turned on, and after reaching the set duration, the battery cell is detected by a light meter, solving the problem of testing the battery cell on the production line in a short time.

[0034] Please continue to refer to Figure 1 . As Figure 1 shown, in order to improve the detection efficiency and facilitate later data comparison, each LID test device is provided with two groups of LED light source components and a heating battery cell stage. Specifically, the LED light source group 2 is arranged directly above the heating platform group 3. The LED light source group 2 includes two LED light source components, and the heating platform group 3 includes two heating battery cell stages. The LED light source components and the heating battery cell stages are in one-to-one correspondence.

[0035] Please continue to refer to Figure 1 . As Figure 1 shown, the box body 1 includes a support frame 11. The support frame 11 includes a plurality of horizontal support rods, a plurality of vertical support rods and a plurality of longitudinal support rods. The adjacent horizontal support rods, vertical support rods and longitudinal support rods are fixedly connected by right-angle mounting angle pieces. Two of the vertical support rods are provided with cantilever rods 12, and the LED light source components are sleeved on the cantilever rods 12. The heating battery cell stages are fixed on some of the longitudinal support rods. Specifically, the LED light source components can be removed from the cantilever rods 12, which is not only convenient for adjusting the position but also convenient for replacing the light source.

[0036] Please continue to refer toFigure 1 Combined with Figure 2 , Figure 2 is a schematic structural diagram of the optimal embodiment of the test rod of the present utility model. As Figures 1 to 2 shown, when using a hand-held light meter to detect solar cells, there will be differences in height and position, which will lead to large errors in the detection results. Therefore, horizontal sliding rods 13 are installed on three adjacent horizontal support rods, and a test rod 5 is arranged on the horizontal sliding rod 13 through a slider 51. A positioning ring 52 is fixed to the bottom surface of the test rod 5, and a tightening ring 53 is arranged on the inner wall of the positioning ring 52. The tightening ring 53 is made of an elastic material, allowing the light meter to be inserted into the tightening ring 53. By sliding the horizontal sliding rod 13 to a specific position on the horizontal support rod and then making a mark, the detection with unified height, angle and position can be realized, greatly reducing the error and improving the detection accuracy.

[0037] In summary, by setting up an LID test device on the battery production line, the problem of testing solar cells on the production line in a short time is solved; by setting up a limit stop 3, the effect of directly placing subsequent solar cells is realized, greatly reducing the labor intensity of detecting solar cells and improving the detection efficiency; by setting up a test rod 5, the detection with unified height, angle and position is realized, greatly reducing the error and improving the detection accuracy.

[0038] Inspired by the above ideal embodiment of the present utility model, through the above description, relevant staff can completely make various changes and modifications without departing from the technical idea of the present utility model. The technical scope of the present utility model is not limited to the content in the specification, and its technical scope must be determined according to the scope of the claims.

Claims

1. A photovoltaic cell LID testing device, characterized in that: include: A box body (1), an LED light source group (2) and a heating platform group (3), wherein the LED light source group (2) and the heating platform group (3) are both arranged in the box body (1), the LED light source group (2) is arranged directly above the heating platform group (3), the LED light source group (2) comprises two LED light source components, and the heating platform group (3) comprises two heating battery cell carriers, and the LED light source components correspond to the heating battery cell carriers one by one.

2. A photovoltaic cell LID testing device as claimed in claim 1, characterized in that: An electrical cabinet (4) is installed on one side surface of the box body (1).

3. The photovoltaic cell LID testing device according to claim 1, characterized in that: The box body (1) comprises a support frame (11), and the support frame (11) comprises a plurality of transverse support rods, a plurality of vertical support rods and a plurality of longitudinal support rods, wherein adjacent transverse support rods, vertical support rods and longitudinal support rods are fixedly connected via right-angle mounting angle pieces.

4. A photovoltaic cell LID testing device as claimed in claim 3, characterized in that: Two of the vertical support rods are mounted with cantilever rods (12), and the LED light source components are sleeved on the cantilever rods (12).

5. The photovoltaic cell LID testing device according to claim 3, characterized in that: The heating cell carrier is fixed on a plurality of the longitudinal support rods.

6. A photovoltaic cell LID testing device as claimed in claim 3, characterized in that: A transverse sliding bar (13) is installed on three adjacent transverse supporting bars, and a test bar (5) is arranged on the transverse sliding bar (13) via a sliding block (51).

7. A photovoltaic cell LID testing device as claimed in claim 6, characterized in that: A positioning ring (52) is fixed to the bottom surface of the test rod (5), and a tightening ring (53) is provided on the inner wall of the positioning ring (52), and the tightening ring (53) is made of elastic material.

8. The photovoltaic cell LID testing device according to claim 1, characterized in that: The heating battery cell carrier comprises a support plate (31), and a plurality of positioning holes (32) are provided on the support plate (31).

9. A photovoltaic cell LID testing device as claimed in claim 8, characterized in that: A positioning short column (34) is arranged in one of the positioning holes (32), and a limit stopper (33) is integrally arranged on the top of the positioning short column (34).

10. A photovoltaic cell LID testing device as claimed in claim 9, characterized in that: The limit stopper (33) is provided with a right-angle groove (35).

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