Acid resistance testing device for crystalline silicon solar cell

Abstract

The utility model discloses a crystalline silicon solar cell acid resistance testing device, which comprises a testing box body, a heating module, a fan module and two clamping modules, the heating module is arranged at the bottom of the testing box body, and the two clamping modules are symmetrically arranged on two sides of the testing box body and positioned above the heating module. The clamping module comprises a fixed cylinder, a movable cylinder and a clamping plate, the fixed cylinder is arranged on the side surface of the test box body, the movable cylinder is movably arranged in the fixed cylinder through a screw rod, one end of the screw rod is provided with a manual knob, the manual knob is located on the side surface outside the test box body, and the other end of the screw rod is connected with the movable cylinder; the movable cylinder can be driven to slide in the fixed cylinder by screwing the manual knob, the clamping plates are arranged at the end part of the movable cylinder, and the two oppositely arranged clamping plates are used for clamping a battery piece. Through structural optimization, the device can be suitable for battery pieces of various specifications and sizes, the dustproof effect is better, and the acid resistance detection effect is better.

Description

Technical Field

[0001] The utility model relates to the technical field of solar cell detection, in particular to an acid-resistant testing device for a crystalline silicon solar cell sheet. Background Art

[0002] With the continuous maturity and advancement of crystalline silicon solar cell technology, battery reliability has gradually become the first issue to be considered in battery process optimization and new technology development. The acid resistance of crystalline silicon solar cells determines the service life of the components made of the cells. The life of the components determines the cost per kilowatt-hour of the solar cells. Therefore, the acid resistance reliability of the battery is very important.

[0003] At present, the structure used to fix solar cells in the device for testing the acid resistance of batteries is simple, and it is impossible to fix cells of different specifications, resulting in low applicability of the device. In addition, in order to ensure the circulation of air in the device box, vents are set on the top of the box. The vents do not have a dust-proof effect. The entry of dust will cause the testing environment in the box to deteriorate, affecting the acid resistance test effect. Utility Model Content

[0004] In view of the above, the utility model provides a crystalline silicon solar cell acid resistance testing device, which can be applied to cells of various specifications and sizes through optimization, and has better dustproof effect and better acid resistance detection effect.

[0005] The utility model provides the following technical solutions: a crystalline silicon solar cell acid resistance testing device, comprising a testing box, a heating module, a fan module and a clamping module, wherein the heating module is arranged at the bottom of the testing box, the clamping modules are two, symmetrically arranged on both sides of the testing box and located above the heating module, the clamping module comprises a fixed cylinder, a movable cylinder and a clamping plate, the fixed cylinder is arranged on the side of the testing box, the movable cylinder is movably arranged in the fixed cylinder through a screw, one end of the screw is provided with a manual knob, the manual knob is located on the side outside the testing box, the other end of the screw is connected to the movable cylinder, screwing the manual knob can drive the movable cylinder to slide in the fixed cylinder, the clamping plate is arranged to the end of the movable cylinder, and the two clamping plates arranged opposite to each other are used for clamping the solar cell.

[0006] Furthermore, a limiting sliding groove is arranged in the fixed cylinder, and a limiting sliding block is symmetrically arranged on the side wall of the movable cylinder, and the limiting sliding block is slidably connected with the limiting sliding groove.

[0007] Furthermore, the heating module comprises a heating dish arranged at the bottom of the test box, the interior of the heating dish contains an acid solution, and a heating plate is arranged inside the heating dish.

[0008] Furthermore, the fan module includes a first fan mechanism and a second fan mechanism, the first fan mechanism is two and is symmetrically arranged on both sides of the test box and located above the clamping module, the second fan mechanism is mounted in the test box through a fixed frame and is located above the first fan mechanism, and the first fan mechanism and the second fan mechanism blow air toward the center of the test box together.

[0009] Furthermore, the first fan mechanism and the second fan mechanism each include a rotating blade, a rotating shaft and a rotating drive mechanism.

[0010] Furthermore, a vent is provided on the top of the test box, and a dustproof plate is laid on the vent.

[0011] Furthermore, a dustproof plate positioning mechanism is provided at the top end corner of the test box, and the dustproof plate positioning mechanism includes an L-shaped bracket, a movable rod and a spring, the spring is arranged between the movable rod and the L-shaped bracket, and one end of the movable rod is connected to one side edge of the L-shaped bracket through a hinge seat.

[0012] Furthermore, positioning holes are provided at both ends of the dustproof plate, and positioning points are provided below the movable rod at positions corresponding to the positioning holes.

[0013] Furthermore, a door is provided on the surface of the test box via hinges.

[0014] Furthermore, a connecting frame is arranged on the top of the test box, a sealing cover is detachably arranged on the top of the connecting frame, and a sealing bottom pad is laid on the bottom of the sealing cover.

[0015] The utility model of the acid-resistant test device for crystalline silicon solar cell is used to clamp the cell by symmetrically setting the clamping modules on both sides of the box, wherein the spacing between the two clamping plates in the clamping modules can be manually adjusted, and thus can be applicable to cells of various sizes and specifications, thereby improving the applicability of the device. At the same time, the acid-resistant test device is provided with a dustproof plate at the top vent, which can prevent external dust from entering the test box while maintaining air circulation in the test box, effectively ensuring that the detection environment in the test box is not affected by external factors, and the dustproof plate is fixed by a dustproof plate positioning mechanism. When the dustproof plate needs to be replaced, the movable rod in the dustproof plate positioning mechanism can be pulled to release the fixation of the dustproof plate, thereby facilitating the removal and replacement of the dustproof plate. In addition, two sets of fan mechanisms are set in the test box, and the evaporated acidic solution is concentrated on the periphery of the solar cell through the blowing cooperation of the two sets of fan mechanisms, thereby increasing the contact area and avoiding direct overflow of the acid vapor after evaporation, which affects the test effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1This is a schematic diagram of the internal structure of the test box of the utility model;

[0017] Figure 2 It is a structural schematic diagram of the clamping module in the utility model;

[0018] Figure 3 It is an enlarged schematic diagram of the dustproof plate positioning mechanism and the dustproof plate connection structure of the utility model;

[0019] Figure 4 This is a top view schematic diagram of the heating module of the utility model;

[0020] Figure 5 This is a schematic diagram of the structure of Embodiment 2 of the present utility model;

[0021] Figure 6 For this utility model Figure 5 The enlarged structural diagram at A in the middle;

[0022] Figure 7 This is a schematic diagram of the external plan of Example 2 of the utility model. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model. Example 1

[0024] See also Figure 1-Figure 4 The utility model provides a crystalline silicon solar cell acid resistance test device, comprising a test box 1, a heating module 2, a fan module and a clamping module 3, wherein the heating module 2 is arranged at the bottom of the test box 1, and the clamping module 3 is two, which are symmetrically arranged on both sides of the test box and located above the heating module 2, and the clamping module 3 comprises a fixed cylinder 31, a moving cylinder 32 and a clamping plate 33, wherein the fixed cylinder 31 is fixedly arranged on the side of the test box 1 through the fixed cylinder 32, and the moving cylinder 32 is movably arranged in the fixed cylinder 31 through a screw rod 34, and a manual knob 35 is arranged at one end of the screw rod 34, and the manual knob 35 is positioned at the fixed cylinder 31. On the side outside the test box 1, the other end of the screw 34 is connected to the moving cylinder 32, a limiting slide groove 36 is arranged in the fixed cylinder 31, and a limiting slider 37 is symmetrically arranged on the outer wall of the moving cylinder 32. The limiting slider 37 is slidably connected with the limiting slide groove 36. Turning the manual knob 35 can drive the moving cylinder 32 to slide along the limiting slide groove 36 in the fixed cylinder 31. The clamping plate 33 is fixed to the end of the moving cylinder 32 and moves with the moving cylinder 32. In this way, the distance between the two clamping plates 33 can be adjusted according to the specifications of the solar cell, and the two clamping plates 33 are used to clamp the solar cell.

[0025] More specifically, the heating module 2 includes a heating dish 21 disposed at the bottom of the test box 1. The interior of the heating dish 21 contains an acid solution 22, and a heating plate 23 is provided in the heating dish 21 for heating the solution to accelerate its evaporation and vaporization. The evaporated acidic gas is used to perform an acid resistance test on the battery cell directly above the heating dish 21.

[0026] In this embodiment, the fan module includes a first fan mechanism 41 and a second fan mechanism 42. The first fan mechanism 41 and the second fan mechanism 42 both include rotating blades 411, a rotating shaft 412 and a rotating drive mechanism 413. The rotating drive mechanism 413 uses a rotating motor to drive the rotating shaft 412 and the rotating blades 411 to rotate. There are two first fan mechanisms 41, which are symmetrically arranged on both sides of the test box 1 and located above the fixed cylinder 31. The second fan mechanism 42 is erected in the test box 1 through a fixed frame 43, located above the first fan mechanism 41 and below the vent 11. The first fan mechanism 41 and the second fan mechanism 41 42 blow air toward the center of the test box 1 together, that is, blow air toward the battery cell tested in the center, so that the evaporated gas of the acid solution can be concentrated around the battery cell to avoid direct overflow of the acid vapor after evaporation, thereby prolonging the test time and affecting the test effect.

[0027] A vent 11 is provided on the top of the test box 1, and a dustproof plate 12 is laid on the vent 11. A dustproof plate positioning mechanism is provided at the top corner of the test box 1 for fixing the dustproof plate 12. At the same time, the movable dustproof plate positioning mechanism facilitates the disassembly and replacement of the dustproof plate 12. Specifically, the dustproof plate positioning mechanism includes an L-shaped bracket 5, a movable rod 6 and a spring 7. The spring 7 is arranged between the movable rod 6 and the L-shaped bracket 5, and its two ends are respectively connected to the top surface of the movable rod 6 and the inner wall of one side of the L-shaped bracket 5. One end of the movable rod 6 is rotatably connected to one side of the L-shaped bracket 5 through a hinge seat 8. Positioning card holes 121 are provided at both ends of the top surface of the dustproof plate 12, and a positioning card point 61 is provided at a position corresponding to the positioning card hole 121 below the movable rod 6, such as Figure 3 When the dustproof plate 12 is fixed to the top of the vent 11 of the test box 1, the positioning card point 61 at the bottom of the movable rod 6 is just stuck in the positioning card hole 121 at both ends of the dustproof plate 12, and it is fixed above the vent 11. When replacing the dustproof plate 12, you only need to lift one end of the movable rod 6 to disengage the positioning card point 61 from the positioning card hole 121, and then you can take out the dustproof plate 12 for replacement or cleaning. After the new dustproof plate 12 is placed, release the movable rod 6, and the movable rod 6 is automatically pressed down under the restoring force of the spring 7, and the positioning card point 61 is re-stuck in the positioning card hole 121.

[0028] In addition, a door 14 is provided on the surface of the test box 1 via a hinge 13 , and the door 14 is closed during testing.

[0029] When in use, the distance between the two clamping plates 23 is manually adjusted according to the size of the test battery cell, the battery cell is clamped, the heating plate 23 is started to heat the acid solution 22 in the heating dish 21, and the heated acid solution evaporates and vaporizes, rises to contact the solar cell to test its acid resistance, during which the first fan mechanism 41 and the second fan mechanism 41 42 blow air toward the battery cell being tested in the center, so that the evaporated acid gas can be concentrated around the battery cell to avoid direct overflow of the acid gas after evaporation, which prolongs the test time and affects the test effect. Example 2

[0030] like Figure 5-Figure 7 The acid resistance testing device for crystalline silicon solar cells of this embodiment adds a sealing cover 15 on the basis of the embodiment 1. A connecting frame 16 is arranged on the top of the test box 1. The sealing cover 15 is detachably arranged on the top of the connecting frame 16. When the acid solution in the heating dish 21 is an acetic acid solution, a sealing operation is required. At this time, the sealing cover 15 needs to be installed on the top of the test box 1 to ensure the sealing of the test. In the case of non-acetic acid solution, the sealing cover 15 is removed to increase the applicability of the test device.

[0031] Furthermore, a groove handle 151 is provided on the top surface of the sealing cover 15, and a sealing bottom pad 152 is laid on the bottom. The groove handle 151 is provided to facilitate the removal of the sealing cover, and the sealing bottom pad 152 ensures sealing. A support edge 17 is provided on the inner surface of the top of the connecting frame 16, and a fixed card slot 171 is provided on the inner surface of the support edge 17. Protruding fixed card members 153 are provided at both ends of the bottom of the sealing cover 15. The support edge 17 is elastic. When installing the sealing cover 15, the fixed card member 153 is pressed into the fixed card slot 171. When disassembling the sealing cover 15, the sealing cover 15 can be pulled out by holding the groove handle 151.

[0032] In addition, the above embodiments are only used to illustrate the present invention and are not intended to limit the technical solutions described in the present invention. The understanding of this specification should be based on the technical personnel in the relevant technical field. Although this specification has described the present invention in detail with reference to the above embodiments, ordinary technical personnel in the field should understand that the technical personnel in the relevant technical field can still modify or make equivalent substitutions to the present invention, and all technical solutions and improvements thereof that do not depart from the spirit and scope of the present invention should be included in the scope of the claims of the present invention.

Claims

1. A crystalline silicon solar cell acid resistance testing device, characterized in that: It includes a test box, a heating module, a fan module and a clamping module, wherein the heating module is arranged at the bottom of the test box, and there are two clamping modules, which are symmetrically arranged on both sides of the test box and located above the heating module. The clamping module includes a fixed cylinder, a movable cylinder and a clamping plate, wherein the fixed cylinder is arranged on the side of the test box, and the movable cylinder is movably arranged in the fixed cylinder through a screw, and a manual knob is arranged at one end of the screw, and the manual knob is located on the side outside the test box, and the other end of the screw is connected to the movable cylinder, and screwing the manual knob can drive the movable cylinder to slide in the fixed cylinder, and the clamping plate is arranged at the end of the movable cylinder, and the two clamping plates arranged opposite to each other are used for clamping the battery cells.

2. The acid resistance testing device for crystalline silicon solar cell according to claim 1, characterized in that: A limiting sliding groove is arranged in the fixed cylinder, and a limiting sliding block is symmetrically arranged on the side wall of the movable cylinder, and the limiting sliding block is slidably connected with the limiting sliding groove.

3. The acid resistance testing device for crystalline silicon solar cell according to claim 1, characterized in that: The heating module comprises a heating dish arranged at the bottom of the test box, the interior of the heating dish contains an acid solution, and a heating sheet is arranged inside the heating dish.

4. The acid resistance testing device for crystalline silicon solar cell according to claim 1, characterized in that: The fan module includes a first fan mechanism and a second fan mechanism. The first fan mechanism is two and is symmetrically arranged on both sides of the test box and located above the clamping module. The second fan mechanism is mounted in the test box through a fixing frame and is located above the first fan mechanism. The first fan mechanism and the second fan mechanism blow air toward the center of the test box together.

5. The acid resistance testing device for crystalline silicon solar cell according to claim 4, characterized in that: The first fan mechanism and the second fan mechanism each include a rotating blade, a rotating shaft and a rotating drive mechanism.

6. The acid resistance testing device for crystalline silicon solar cell according to claim 1, characterized in that: A vent is provided on the top of the test box, and a dustproof plate is laid on the vent.

7. The acid resistance testing device for crystalline silicon solar cell according to claim 6, characterized in that: A dustproof plate positioning mechanism is arranged at the top corner of the test box, and the dustproof plate positioning mechanism comprises an L-shaped bracket, a movable rod and a spring, wherein the spring is arranged between the movable rod and the L-shaped bracket, and one end of the movable rod is connected to one side edge of the L-shaped bracket through a hinge seat.

8. The acid resistance testing device for crystalline silicon solar cell according to claim 7, characterized in that: Positioning holes are arranged at both ends of the dustproof plate, and positioning points are arranged below the movable rod at positions corresponding to the positioning holes.

9. The acid resistance testing device for crystalline silicon solar cell according to claim 1, characterized in that: The surface of the test box is provided with a box door via hinges.

10. The acid resistance testing device for crystalline silicon solar cell according to any one of claims 1 to 9, characterized in that: A connecting frame is arranged on the top of the test box body, a sealing cover is detachably arranged on the top of the connecting frame, and a sealing bottom pad is laid on the bottom of the sealing cover.

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