Photovoltaic cell bending strength detection device and detection method thereof

Abstract

The invention discloses a photovoltaic cell bending strength detection device and a detection method thereof, and relates to the related field of photovoltaic cell detection. According to the photovoltaic cell supporting and clamping device, the supporting and clamping device is arranged, three sets of corresponding clamping assemblies are arranged in the supporting and clamping device, multi-position supporting and clamping can be conducted on a photovoltaic cell, and manual clamping is not needed; moving mechanisms are correspondingly arranged on the two sides of the supporting and clamping device, the tops of the moving mechanisms are connected with a multi-position pressing device, the multi-position pressing device can move front and back along with the moving mechanisms to conduct large-range detection position adjustment, an adjustable contact device is arranged in the multi-position pressing device, and the adjustable contact device is driven by an independent motor. Under driving, through transmission of a gear set, a contact piece in contact with a photovoltaic cell below is driven to move spirally, small-range adjustment of a detection position is carried out, adjustment is convenient, the detection position does not need to be manually adjusted, and the working efficiency is effectively improved.

Description

Technical Field

[0001] The present invention relates to photovoltaic cell detection related fields, and in particular to a photovoltaic cell bending strength detection device and a detection method thereof. Background Art

[0002] Photovoltaic cells are devices that convert sunlight directly into electrical energy, and operate based on the principle of the photovoltaic effect. They are mainly made of semiconductor materials, such as silicon. When photons in sunlight hit these materials, the energy of the photons excites electrons in the semiconductor, causing them to jump from the valence band to the conduction band, thereby generating electron-hole pairs. Under the action of the built-in electric field, electrons and holes move in opposite directions, forming currents, and outputting electrical energy through external circuits. Photovoltaic cells are the core components of solar power generation and are widely used in photovoltaic power stations, home solar energy systems, portable power equipment and other fields. Because of their clean, renewable, and pollution-free characteristics, they have become one of the important technologies for responding to the global energy crisis and environmental problems. In the production process of photovoltaic cells, they need to be tested in multiple ways, and the bending strength of the battery is also necessary, which requires the use of a dedicated photovoltaic cell bending strength testing device.

[0003] The photovoltaic cell bending strength detection device in the prior art has the following problems in actual use: manual detection and adjustment are required, which is labor-intensive, resulting in low work efficiency and affecting the overall detection effect. Summary of the invention

[0004] Therefore, in order to solve the above-mentioned shortcomings, the present invention provides a photovoltaic cell bending strength detection device and a detection method thereof.

[0005] In order to achieve the above-mentioned purpose, the present invention adopts the following technical scheme: a photovoltaic cell bending strength detection device and a detection method thereof, comprising a support clamping device, a moving mechanism is arranged on both sides of the support clamping device, and two groups of the moving mechanisms are connected to the top of a multi-position pressing device, and the multi-position pressing device follows the moving mechanism to adjust the position;

[0006] The supporting and clamping device includes a base plate, a left slide rail arranged at the left end of the top of the base plate, a supporting plate movably embedded in the left slide rail, a right slide rail arranged at the right end of the top of the base plate, a slider movably embedded in the right slide rail, a first cylinder arranged on the right side of the slider, and a pressure plate arranged on the left side of the slider and connected to the first cylinder ejection rod, and the outer sides of the left slide rail and the right slide rail are respectively connected to the moving mechanism.

[0007] Preferably, three groups of the support plates and three groups of the sliding blocks are provided.

[0008] Preferably, the inner sides of the pressing plate and the supporting plate are both rounded.

[0009] Preferably, the moving mechanism includes a fixed box arranged on the outside of the left slide rail and the right slide rail, a first motor arranged on the front end of the fixed box, a sliding member arranged on the outside of the fixed box, a threaded rod arranged in the middle of the fixed box and connected to the output shaft of the first motor, a moving member threadedly connected to the outside of the threaded rod, and a connecting arm connecting the moving member and passing through the fixed box to connect the sliding member, and the top of the sliding member is connected to a multi-position pressing device.

[0010] Preferably, guide grooves are provided at the outer end and the inner middle of the top of the fixed box, the inner sides of the sliding members are movably embedded in the two groups of guide grooves, and the sliding members pass through the inner guide grooves to connect the connecting arms.

[0011] Preferably, the multi-position pressing device comprises a fixing frame with two bottom ends connected to the sliding member, a second cylinder disposed at two top ends of the fixing frame, and an adjustable contact device connected to a push rod at the bottom of the second cylinder and disposed below the fixing frame.

[0012] Preferably, the adjustable contact device includes a top plate connected to the second cylinder ejection rod, a second motor arranged at the right end of the top of the top plate, a driving gear arranged at the right end of the bottom of the top plate and connected to the output shaft of the second motor, a connecting gear coaxial with the driving gear and arranged at the bottom thereof, a driven gear meshing with the driving gear, a follower gear meshing with the left side of the connecting gear, a rotating guide plate connected to the follower gear, and a rotating member arranged at the bottom of the rotating guide plate.

[0013] Preferably, the middle portion of the rotating member is connected to the driven gear through a shaft rod penetrating the rotating guide plate and the follower gear.

[0014] Preferably, a special-shaped groove is provided at the bottom of the rotating guide disk, a strip groove is provided in the middle of the rotating member, an adjustment block is movably embedded in the strip groove, a through groove is provided at one end of the strip groove, a guide column is fixed on the top of the adjustment block, the guide column passes through the through groove and is movably embedded in the special-shaped groove, and a contact member is fixed on the outside of the adjustment block.

[0015] Preferably, the method comprises the following steps:

[0016] S1: Place the photovoltaic cell: Place the photovoltaic cell on top of the left and right slide rails;

[0017] S2 Photovoltaic cell clamping: According to the position of the photovoltaic cell, manually adjust the position of the support plate and the slider on the slide rail so that the left side of the photovoltaic cell is close to the support plate, start the first cylinder, and the push rod on the left side of the cylinder pushes the pressure plate to fix the photovoltaic cell on the slide rail;

[0018] S3 Bending strength test: Start the second cylinder to push the adjustable contact device connected at the bottom downward so that the internal contact parts contact and press the photovoltaic cell to perform bending strength test;

[0019] S4 wide range pressure position adjustment: start the first motor, the motor drives the threaded rod to rotate, the threaded rod drives the outer moving part to push the sliding part forward and backward through the connecting arm, and then drives the fixed frame to move the contact part inside the adjustable contact device to achieve a wide range of pressure position adjustment

[0020] S5 small range pressure position adjustment: start the second motor, the motor drives the driving gear to rotate, the driving gear and the connecting gear rotate at different speeds, the driving gear drives the driven gear to rotate, so that the rotating part drives the bottom contact part to move spirally under the action of the guide column, so as to achieve small range adjustment of the pressure position.

[0021] Beneficial effects of the present invention:

[0022] The present invention is provided with a supporting clamping device, which has three groups of corresponding clamping components built in the supporting clamping device, so that the photovoltaic cell can be supported and clamped in multiple positions without manual clamping; moving mechanisms are correspondingly arranged on both sides of the supporting clamping device, and the top of the moving mechanism is connected to a multiple-position pressing device, which can follow the moving mechanism to move back and forth to adjust the detection position over a large range, and the multiple-position pressing device is built in with an adjustable contact device, which is driven by an independent motor and can be driven through a gear set to move the contact piece that contacts the photovoltaic cell below in a spiral position, so as to adjust the detection position in a small range, and the adjustment is convenient, and there is no need for manual adjustment of the detection position, thereby effectively improving work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the structure of the present invention;

[0024] Figure 2 It is a schematic diagram of the structure of the supporting and clamping device of the present invention;

[0025] Figure 3 It is a schematic diagram of the structure of the mobile mechanism of the present invention;

[0026] Figure 4 It is a schematic diagram of the internal structure of the fixed box of the present invention;

[0027] Figure 5 It is a schematic diagram of the structure of the fixing frame of the present invention;

[0028] Figure 6 It is a schematic diagram of the structure of the adjustable contact device of the present invention;

[0029] Figure 7 It is a structural schematic diagram of the adjustable contact device of the present invention from another viewing angle;

[0030] Figure 8 It is a schematic diagram of the structure of the rotating part of the present invention;

[0031] Fig. 9It is a schematic diagram of the structure of the rotating guide plate of the present invention.

[0032] Among them: supporting and clamping device-1, moving mechanism-2, multi-position pressing device-3, base plate-11, left slide rail-12, supporting plate-13, right slide rail-14, slider-15, first cylinder-16, pressing plate-17, fixed box-21, first motor-22, sliding member-23, threaded rod-24, moving member-25, connecting arm-26, fixed frame-31, second cylinder-32, adjustable contact device-33, top plate-331, second motor-332, driving gear-333, connecting gear-334, driven gear-335, follower gear-336, rotating guide plate-337, rotating member-338, adjusting block-338a, contact member-338b, guide column-338c. DETAILED DESCRIPTION

[0033] In order to further explain the technical solution of the present invention, it is described in detail below through specific embodiments.

[0034] See also Figure 1 The present invention provides a photovoltaic cell bending strength testing device, comprising a supporting and clamping device 1 for supporting and clamping a photovoltaic cell, a moving mechanism 2 arranged on the left and right sides of the supporting and clamping device 1, and a multi-position pressing device 3 connected to the top of the two groups of moving mechanisms 2. The multi-position pressing device 3 can move forward and backward with the moving mechanism 2, and the multi-position pressing device 3 can press down the photovoltaic cell on the supporting and clamping device 1 at multiple positions to realize bending strength testing.

[0035] See also Figure 2 The supporting and clamping device 1 includes a base plate 11 for supporting, a left slide rail 12 is fixed to the left end of the top of the base plate 11, a support plate 13 is movably embedded in the left slide rail 12, a bolt is arranged in the middle of the support plate 13, and the locking bolt can fix the support plate 13 inside the left slide rail 12, and three groups of support plates 13 are arranged in the left slide rail 12, a right slide rail 14 is fixed to the right end of the top of the base plate 11, three groups of sliders 15 are arranged in the right slide rail 14 corresponding to the support plates 13, a first cylinder 16 is arranged on the right side of the slider 15, and a push rod on the left side of the first cylinder 16 penetrates the slider 15 and connects to a pressure plate 17, the top of the pressure plate 17 is inclined, and the inner sides of the pressure plate 17 and the support plate 13 are both chamfered.

[0036] See also Figure 3-Figure 4The moving mechanism 2 includes a fixed box 21 arranged on the left side of the left slide rail 12 and the right side of the right slide rail 14. A first motor 22 is arranged in the middle of the front end of the fixed box 21. Guide grooves are provided at the top of the fixed box 21 near the outer end and the middle of the inner side. The inner sides of the sliding members 23 are movably embedded in the two groups of guide grooves. A threaded rod 24 is arranged in the middle of the fixed box 21. The threaded rod 24 is connected to the output shaft of the first motor 22. The outer side of the threaded rod 24 is threadedly connected to the moving member 25. The inner side of the moving member 25 passes through the inner guide groove of the fixed box 21 through a connecting arm 26 to connect the sliding member 23. The tops of the two groups of sliding members 23 are connected to the two ends of the bottom of the multi-position pressing device 3.

[0037] See also Figure 5-Figure 9 The multi-position pressing device 3 includes a fixing frame 31 for supporting and connecting the top of the sliding member 23 at both ends. The second cylinder 32 is arranged at the left and right ends of the top of the fixing frame 31. The push rod at the bottom of the second cylinder 32 penetrates the fixing frame 31 and connects with the contact device 33. The contact device 33 moves up and down following the second cylinder 32.

[0038] The contact device 33 includes a top plate 331 whose top two ends are connected to the push rod of the second cylinder 32, a second motor 332 is arranged at the top right end of the top plate 331, the output shaft of the second motor 332 penetrates the top plate 331 and is connected to the driving gear 333, a connecting gear 334 is coaxially arranged at the bottom of the driving gear 333, the left side of the driving gear 333 is meshed with the driven gear 335, the left side of the connecting gear 334 is meshed with the follower gear 336, the bottom of the follower gear 336 is connected to the rotating guide plate 337, the bottom of the rotating guide plate 337 is provided with a rotating member 338, the middle part of the rotating member 338 penetrates the rotating guide plate 337 and the follower gear 336 through a shaft to connect to the driven gear 335, and a special-shaped groove is provided at the bottom of the rotating guide plate 337;

[0039] The number of teeth of the driving gear 333 and the driven gear 335 is 20, the number of teeth of the connecting gear 334 is 16, and the number of teeth of the follower gear 336 is 24;

[0040] A strip groove is provided in the middle of the rotating member 338, and an adjusting block 338a is movably embedded in the strip groove. A through groove is provided at one end of the strip groove. A guide column 338c is fixed on the top of the adjusting block 338a, and the guide column 338c passes through the through groove and is movably embedded in the special-shaped groove. A contact piece 338b is fixed on the outside of the adjusting block 338a, and the bottom of the contact piece 338b is arc-shaped, and the contact piece 338b can contact the photovoltaic cell to cooperate with the second cylinder 32 to drive it to apply pressure, and a pressure sensing component can be installed inside the contact piece 338b.

[0041] The specific implementation process is as follows:

[0042] When the photovoltaic cell needs to be tested for bending strength, it is placed on the top of the left slide rail 12 and the right slide rail 14. Then the user adjusts the position of the support plate 13 and the slider 15 on the slide rail according to the fixed position. The left side of the photovoltaic cell is against the support plate 13. Then the first cylinder 16 is started to work. The push rod on the left side of the first cylinder 16 pushes the pressing plate 17 to fix the cell.

[0043] Then the test begins, the second cylinder 32 is started, and the push rod at the bottom of the second cylinder 32 moves the adjustable contact device 33 connected at the bottom downward, so that the contact member 338b inside the adjustable contact device 33 can contact the photovoltaic cell to apply pressure to it for bending test;

[0044] If the pressure position needs to be adjusted over a wide range, the first motor 22 is started to work, and the first motor 22 drives the threaded rod 24 to rotate. During the rotation of the threaded rod 24, the outer moving member 25 moves accordingly. During the movement, the connecting arm 26 drives the sliding member 23 to move forward and backward, and during the movement, the fixed frame 31 can be driven to move the contact member 338b inside the adjustable contact device 33, so as to achieve a wide range of adjustment.

[0045] When small-range adjustment is required, start the second motor 332, and the second motor 332 drives the driving gear 333 to rotate. The connecting gear 334 connected at the bottom also rotates, but at different speeds. The left side of the driving gear 333 drives the driven gear 335 to rotate the rotating member 388, and the connecting gear 334 drives the follower gear 336 to rotate the rotating guide plate 337. The rotating guide plate 337 and the rotating member 338 rotate at different speeds. The adjusting block 338a inside the rotating member 338 can make the contact member 338b at the bottom move spirally under the action of the guide column 338c in the special-shaped groove and itself in the strip groove, so as to realize small-range multi-position adjustment.

[0046] The above description is only a preferred example of the present invention and is not intended to limit the present invention. Although the present invention is described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A photovoltaic cell bending strength testing device, characterized in that: It includes a supporting and clamping device, wherein moving mechanisms are arranged on both sides of the supporting and clamping device, and the tops of two groups of the moving mechanisms are connected to multi-position pressing devices, and the multi-position pressing devices follow the moving mechanisms to adjust their positions; The supporting and clamping device includes a base plate, a left slide rail arranged at the left end of the top of the base plate, a supporting plate movably embedded in the left slide rail, a right slide rail arranged at the right end of the top of the base plate, a slider movably embedded in the right slide rail, a first cylinder arranged on the right side of the slider, and a pressure plate arranged on the left side of the slider and connected to the first cylinder ejection rod, and the outer sides of the left slide rail and the right slide rail are respectively connected to the moving mechanism.

2. A photovoltaic cell bending strength detection device according to claim 1, characterized in that: The support plates and the sliding blocks are each provided in three groups.

3. A photovoltaic cell bending strength detection device according to claim 2, characterized in that: The inner sides of the pressing plate and the supporting plate are both rounded.

4. A photovoltaic cell bending strength detection device according to claim 2, characterized in that: The moving mechanism includes a fixed box arranged on the outside of the left slide rail and the right slide rail, a first motor arranged on the front end of the fixed box, a sliding member arranged on the outside of the fixed box, a threaded rod arranged in the middle of the fixed box and connected to the output shaft of the first motor, a moving member threadedly connected to the outside of the threaded rod, and a connecting arm connecting the moving member and passing through the fixed box to connect the sliding member, and the top of the sliding member is connected to a multi-position pressing device.

5. A photovoltaic cell bending strength detection device according to claim 4, characterized in that: The top of the fixed box is provided with guide grooves at the outer end and the inner middle part, the inner sides of the sliding members are movably embedded in the two groups of guide grooves, and the sliding members penetrate the inner guide grooves to connect the connecting arms.

6. A photovoltaic cell bending strength testing device according to claim 5, characterized in that: The multi-position pressing device comprises a fixing frame with two bottom ends connected to sliding members, a second cylinder arranged at two top ends of the fixing frame, and an adjustable contact device connected to a push rod at the bottom of the second cylinder and arranged below the fixing frame.

7. A photovoltaic cell bending strength testing device according to claim 6, characterized in that: The adjustable contact device includes a top plate connected to the second cylinder ejection rod, a second motor arranged at the right end of the top of the top plate, a driving gear arranged at the right end of the bottom of the top plate and connected to the output shaft of the second motor, a connecting gear coaxial with the driving gear and arranged at the bottom thereof, a driven gear meshing with the driving gear, a follower gear meshing with the left side of the connecting gear, a rotating guide plate connected to the follower gear, and a rotating member arranged at the bottom of the rotating guide plate.

8. A photovoltaic cell bending strength testing device according to claim 7, characterized in that: The middle part of the rotating member is connected to the driven gear through a shaft rod penetrating the rotating guide plate and the follower gear.

9. A photovoltaic cell bending strength testing device according to claim 8, characterized in that: A special-shaped groove is provided at the bottom of the rotating guide plate, a strip groove is provided in the middle of the rotating part, an adjustment block is movably embedded in the strip groove, a through groove is provided at one end of the strip groove, a guide column is fixed on the top of the adjustment block, the guide column passes through the through groove and is movably embedded in the special-shaped groove, and a contact piece is fixed on the outside of the adjustment block.

10. A testing method using a photovoltaic cell bending strength testing device according to any one of claims 1 to 9, characterized in that: The following steps are involved: S1: Place the photovoltaic cell: Place the photovoltaic cell on top of the left and right slide rails; S2 Photovoltaic cell clamping: According to the position of the photovoltaic cell, manually adjust the position of the support plate and the slider on the slide rail so that the left side of the photovoltaic cell is close to the support plate, start the first cylinder, and the push rod on the left side of the cylinder pushes the pressure plate to fix the photovoltaic cell on the slide rail; S3 Bending strength test: Start the second cylinder to push the adjustable contact device connected at the bottom downward, so that the internal contact parts contact and press the photovoltaic cells to perform bending strength test; S4 wide range pressure position adjustment: start the first motor, the motor drives the threaded rod to rotate, the threaded rod drives the outer moving part to push the sliding part forward and backward through the connecting arm, and then drives the fixed frame to move the contact part inside the adjustable contact device to achieve a wide range of pressure position adjustment S5 small range pressure position adjustment: start the second motor, the motor drives the driving gear to rotate, the driving gear and the connecting gear rotate at different speeds, the driving gear drives the driven gear to rotate, so that the rotating part drives the bottom contact part to move spirally under the action of the guide column, so as to achieve small range adjustment of the pressure position.

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