An adjustable lifting material box and its usage method

Abstract

This invention relates to an adjustable lifting material box and its usage method, belonging to the field of photovoltaic module manufacturing technology. It addresses the problem that existing methods often result in reduced overall height of the cut surface of solar cells, leading to production malfunctions during string welding. The adjustable lifting material box includes a pad and a movable toothed strip. The movable toothed strip has a first tooth, and one side of the pad has a second tooth. When the movable toothed strip moves, the first and second teeth mesh, raising or lowering the side of the pad with the second tooth. This adjustable lifting material box allows for relatively stable and precise adjustment of the solar cell level through the meshing of the teeth, reducing breakage and cost losses.

Description

Technical Field

[0001] This invention relates to the field of photovoltaic module manufacturing technology, and in particular to an adjustable lifting material box and its usage method. Background Technology

[0002] With the development of the photovoltaic industry, while pursuing the development of equipment production capacity, the cost of photovoltaics is also being considered. Along with this, the thickness of solar cells has been reduced. In the process of reducing the thickness of solar cells, after cutting them into two slabs, there is no obvious reduction in the thickness of the cut surface of a single cell. However, when the number of solar cells is large, it is found that the overall height of the cut surface is reduced. When placing them into the welding machine for string welding, it will lead to a high breakage rate and abnormal cell suction. At present, there is no effective solution on the market. In production, other materials are often used as pads to adjust the thickness, but the overall effect is not good and the problem of reduced overall height of the cut surface of solar cells, which easily leads to failures in production, has not been solved. Summary of the Invention

[0003] Based on the above analysis, the present invention aims to provide an adjustable lifting material box and its usage method, which can solve the problem that the overall height of the cut surface of existing battery cells is reduced, and failures are easily caused during production when the cells are placed into the welding machine for string welding.

[0004] On one hand, the present invention provides an adjustable lifting material box, which includes a pad and a movable sawtooth strip; the movable sawtooth strip is provided with a first sawtooth, and a second sawtooth is provided on one side of the pad; when the movable sawtooth strip moves, the first sawtooth and the second sawtooth mesh with each other, causing the side of the pad with the second sawtooth to be raised or lowered.

[0005] Furthermore, the adjustable lifting material box also includes a base plate with a groove on the base plate, into which a pad is placed.

[0006] Furthermore, the adjustable lifting material box also includes a bracket, which includes a first support plate. At both ends of the first support plate, there are pillars that are perpendicularly connected to the first support plate. Each pillar has a cylindrical hole. At both ends of the movable saw blade, there are cylinders. The cylinders are fixedly connected to the bracket through the cylindrical holes. The movable saw blade can move with the movement of the bracket.

[0007] Furthermore, two first columns are provided on the upper surface of the base plate near both ends, with the two first columns arranged symmetrically.

[0008] Furthermore, each of the two first columns is provided with a guide hole, through which the support column moves under guidance.

[0009] Furthermore, a second column is provided on the side of the base plate; the second column is located in the middle of the two first columns.

[0010] Furthermore, the adjustable lifting material box also includes screws. Threaded holes are provided on the first support plate and the second column. The screws are connected to the second column and the bracket in sequence through the threaded holes. By turning the screws, the bracket is pushed to move.

[0011] Furthermore, the adjustable lifting material box also includes multiple material box columns, which are distributed around the pad.

[0012] Furthermore, the movable saw blade is in the shape of a cuboid, one face of which is a first inclined plane, and the first saw teeth are distributed on the first inclined plane; the pad is in the shape of a cuboid, one face of which is a second inclined plane, and the second saw teeth are distributed on the second inclined plane; the inclination angle of the first inclined plane is greater than the inclination angle of the second inclined plane.

[0013] The present invention also provides a method for using an adjustable lifting material box, comprising:

[0014] Step 1: Place the battery on top of the pad;

[0015] Step 2: Tighten the screw to push the bracket forward through mechanical transmission. The bracket slowly drives the moving saw blade forward, inserting the first saw tooth of the moving saw blade under the pad. At this time, the first saw tooth and the second saw tooth mesh forward, ensuring that the side of the pad with the second saw tooth is lifted. When the balance position is reached, lock the nut. To lower it, simply reverse the screw.

[0016] Compared with the prior art, the present invention can achieve at least one of the following beneficial effects:

[0017] (1) The adjustable lifting material box of the present invention includes a pad and a movable sawtooth strip. The movable sawtooth strip is provided with a first sawtooth, and a second sawtooth is provided on one side of the pad. When the movable sawtooth strip moves, the first sawtooth and the second sawtooth mesh together, causing one side of the pad to be raised or lowered, thereby raising or lowering the battery. The adjustable lifting material box of the present invention can adjust the battery cell level relatively smoothly and accurately through the meshing of the sawtooth, thereby reducing the breakage rate and reducing cost losses.

[0018] (2) The first and second saw teeth of the adjustable lifting material box of the present invention have different inclination angles on the inclined plane. The inclination angle of the inclined plane where the first saw tooth is located is large, and the inclination angle of the inclined plane where the second saw tooth is located is small. This setting ensures that the height of the pad is adjustable and can cope with the cutting surface height of different sizes (i.e., it can be applied to different batteries), thus ensuring the universality of the solution.

[0019] (3) By using the adjustable lifting box of the present invention, when the battery is placed into the welding machine for feeding and stringing, the battery can be raised or lowered, thereby ensuring the overall level of the battery, reducing the breakage rate and reducing cost losses.

[0020] In this invention, the above-described technical solutions can be combined with each other to achieve more preferred combinations. Other features and advantages of this invention will be set forth in the following description, and some advantages may become apparent from the description or be learned by practicing the invention. The objects and other advantages of this invention can be realized and obtained from what is particularly pointed out in the description and drawings. Attached Figure Description

[0021] The accompanying drawings are for illustrative purposes only and are not intended to limit the invention. Throughout the drawings, the same reference numerals denote the same parts.

[0022] Figure 1 This is an exploded view of the adjustable lifting material box of the present invention;

[0023] Figure 2 This is a schematic diagram of the overall structure of the adjustable lifting material box of the present invention during use;

[0024] Figure 3 This is a partial structural diagram of the adjustable lifting material box of the present invention;

[0025] Figure 4 This is a schematic diagram of the structure of the pad and the movable saw blade of the present invention;

[0026] Figure 5 for Figure 4 Enlarged view of point A in the middle;

[0027] Figure 6 for Figure 4 Enlarged view of point B in the middle.

[0028] Figure label:

[0029] 1-Bracket, 1-1-First support plate, 1-2-Support column, 2-1 First upright column, 2-2 Second upright column, 3-Moving saw blade, 3-1-Cylinder, 4-1-Base plate, 4-2-Pad plate, 4-3-Material box column, 5-Battery, 6-1-Screw, 6-2-Nut. Detailed Implementation

[0030] The preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings, which constitute a part of the present invention and are used together with the embodiments of the present invention to illustrate the principles of the present invention, but are not intended to limit the scope of the present invention.

[0031] The accompanying drawings illustrate various structural schematics according to embodiments of the present invention. These drawings are not to scale, and some details have been enlarged for clarity, and some details may have been omitted. The various regions shown in the drawings, and their relative sizes and positional relationships, are merely exemplary and may deviate from reality due to manufacturing tolerances or technical limitations. Furthermore, those skilled in the art can design regions / layers with different shapes, sizes, and relative positions as needed.

[0032] In the context of this invention, when a layer / element is referred to as being "above" another layer / element, the layer / element may be directly above the other layer / element, or there may be an intermediate layer / element between them. Additionally, if a layer / element is "above" another layer / element in one orientation, then when the orientation is reversed, the layer / element may be "below" the other layer / element.

[0033] In existing technologies, during the reduction of solar cell thickness, after cutting the cells into two slabs, there is no significant reduction in the thickness of a single cell. However, when a large number of cells are stacked, the overall height of the cut surface decreases. When these cells are fed into the welding machine for string welding, the thickness of each cell becomes extremely thin, only a few hundred micrometers. If the lifting process is unstable, the cells are easily damaged, leading to a high breakage rate and abnormal cell suction. Currently, there are no effective solutions on the market. In production, a pad is often used to adjust the thickness, but the overall effect is unsatisfactory and does not solve the problem of the overall reduced height of the cut surface leading to production failures. Therefore, a more precise method for adjusting the level is needed.

[0034] The present invention provides an adjustable lifting material box, which includes a pad 4-2 and a movable sawtooth strip 3; the movable sawtooth strip 3 is provided with a first sawtooth, and a second sawtooth is provided on one side of the pad 4-2; when the movable sawtooth strip 3 moves, the first sawtooth and the second sawtooth mesh with each other, causing the side of the pad 4-2 with the second sawtooth to be raised or lowered.

[0035] Specifically, the adjustable lifting material box also includes a base plate 4-1, on which a groove is provided, and a pad 4-2 is placed in the groove.

[0036] Specifically, the adjustable lifting material box also includes a bracket 1, which includes a first support plate 1-1. At both ends of the first support plate 1-1, there are pillars 1-2 that are perpendicularly connected to the first support plate 1-1. Each pillar 1-2 is provided with a cylindrical hole. At both ends of the movable sawtooth 3, there are cylinders 3-1. The cylinders 3-1 are fixedly connected to the bracket 1 through the cylindrical holes. The movable sawtooth 3 can move with the movement of the bracket 1.

[0037] Specifically, two first columns 2-1 are provided on the upper surface of the base plate 4-1 near both ends, and the two first columns 2-1 are arranged symmetrically; one second column 2-2 is provided on the side of the base plate 4-1; both first columns 2-1 are provided with guide holes, and the support column 1-2 on the bracket 1 is guided to move through the guide holes.

[0038] Specifically, the adjustable lifting material box also includes a screw 6-1 and a nut 6-2 that matches the screw 6-1. Threaded holes are provided on the first support plate 1-1 and the second column 2-2. The screw 6-1 is connected to the second column 2-2 and the bracket 1 through the threaded holes in sequence. The nut 6-2 is used for locking. By turning the screw 6-1, the bracket 1 is pushed to move.

[0039] Specifically, the first column 2-1 is fixed to the upper surface of the base plate 4-1 with screws; the second column 2-2 is fixed to the side of the base plate 4-1 with screws.

[0040] Specifically, in order to ensure the balance at both ends of the support 1, the second column 2-2 is located in the middle of the two first columns 2-1.

[0041] Specifically, the adjustable lifting material box also includes multiple material box pillars 4-3, which are distributed around the pad 4-2. Specifically, the pad 4-2 is provided with multiple "straight holes", and the material box pillars 4-3 are placed in the "straight holes", so that the position of the material box pillars 4-3 can be adjusted as needed. Specifically, the material box pillars 4-3 have the following functions: (1) to ensure that the battery 5 is in a fixed position and will not fall off due to tilting during transportation; (2) to adjust the material box pillars 4-3 when placing batteries 5 of different sizes; (3) to act as a gripping handle when the material box is empty.

[0042] Specifically, such as Figures 4-6 As shown, the movable saw blade 3 is rectangular in shape, with one face being a first inclined plane and the first saw teeth distributed on the first inclined plane; the pad 4-2 is also rectangular in shape, with one face being a second inclined plane and the second saw teeth distributed on the second inclined plane; the inclination angle α1 of the first inclined plane is greater than the inclination angle α2 of the second inclined plane; this arrangement ensures that the height of the pad 4-2 is adjustable. For example, the inclination angle α1 of the first inclined plane is approximately 23° to 27°, and the inclination angle α2 of the second inclined plane is approximately 8° to 10°.

[0043] Specifically, after the first and second saw teeth are made, they can be polished smooth. The tops of the first and second saw teeth can be made into a small arc shape. Before putting them into use, the first and second saw teeth can be adjusted together and then assembled.

[0044] Specifically, the graduation line can be set in an easily observable location on the movable saw blade 3 and the pad 4-2; the graduation line can facilitate quick on-site adjustments, and new operators can quickly master the skills, while also ensuring accuracy and precision.

[0045] Specifically, in order to improve the matching accuracy of the first and second saw teeth, solid lubricating oil can be applied between the first and second saw teeth for auxiliary lubrication.

[0046] Specifically, the second sawtooth can be designed separately from the remaining part of the pad 4-2. The second sawtooth can be detachably connected to the remaining part of the pad 4-2. Different types of second sawtooth can be used when different types of battery cells are fed, thus improving applicability.

[0047] It should be noted that the width of the groove on the base plate 4-1 is slightly smaller than the width of the pad 4-2. In application, the side of the pad 4-2 opposite to the side with the second sawtooth is placed inside the groove to ensure that the pad 4-2 remains in position and does not shift when it moves with the moving sawtooth 3.

[0048] The present invention also provides a method for using an adjustable lifting material box, comprising:

[0049] Step 1: Place battery 5 on top of pad 4-2;

[0050] Step 2: Tighten screw 6-1 to push bracket 1 forward through mechanical transmission. Bracket 1 slowly drives the moving saw blade 3 forward, inserting the first saw tooth of the moving saw blade 3 into the lower part of the pad 4-2. At this time, the first saw tooth and the second saw tooth mesh forward, ensuring that the pad 4-2 with the second saw tooth is lifted. When the balance position is reached, lock nut 6-2. To descend, simply reverse screw 6-1.

[0051] Example 1

[0052] This embodiment provides an adjustable lifting material box, such as Figure 1-4 As shown, the adjustable lifting material box includes a pad 4-2 and a movable sawtooth strip 3; the movable sawtooth strip 3 is provided with a first sawtooth, and a second sawtooth is provided on one side of the pad 4-2; when the movable sawtooth strip 3 moves, the first sawtooth and the second sawtooth mesh with each other, causing the side of the pad 4-2 with the second sawtooth to be raised or lowered.

[0053] Specifically, the adjustable lifting material box also includes a base plate 4-1, on which a groove is provided, and a pad 4-2 is placed in the groove.

[0054] Specifically, the adjustable lifting material box also includes a bracket 1, which includes a first support plate 1-1. At both ends of the first support plate 1-1, there are pillars 1-2 that are perpendicularly connected to the first support plate 1-1. Each pillar 1-2 is provided with a cylindrical hole. At both ends of the movable sawtooth 3, there are cylinders 3-1. The cylinders 3-1 are fixedly connected to the bracket 1 through the cylindrical holes. The movable sawtooth 3 can move with the movement of the bracket 1.

[0055] Specifically, two first columns 2-1 are provided on the upper surface of the base plate 4-1 near both ends, and the two first columns 2-1 are arranged symmetrically; one second column 2-2 is provided on the side of the base plate 4-1; both first columns 2-1 are provided with guide holes, and the support column 1-2 on the bracket 1 is guided to move through the guide holes.

[0056] Specifically, the adjustable lifting material box also includes a screw 6-1 and a nut 6-2 that matches the screw 6-1. Threaded holes are provided on the first support plate 1-1 and the second column 2-2. The screw 6-1 is connected to the second column 2-2 and the bracket 1 through the threaded holes in sequence. The nut 6-2 is used for locking. By turning the screw 6-1, the bracket 1 is pushed to move.

[0057] Specifically, the first column 2-1 is fixed to the upper surface of the base plate 4-1 with screws; the second column 2-2 is fixed to the side of the base plate 4-1 with screws.

[0058] Specifically, in order to ensure the balance at both ends of the support 1, the second column 2-2 is located in the middle of the two first columns 2-1.

[0059] The adjustable lifting material box also includes multiple material box columns 4-3, which are distributed around the pad plate 4-2.

[0060] like Figures 4-6 As shown, the movable saw blade 3 is a cuboid, with one face of the movable saw blade 3 being a first inclined plane, and the first saw teeth distributed on the first inclined plane; the pad 4-2 is a cuboid, with one face of the pad 4-2 being a second inclined plane, and the second saw teeth distributed on the second inclined plane; the inclination angle α1 of the first inclined plane is greater than the inclination angle α2 of the second inclined plane; the inclination angle α1 of the first inclined plane is 25°, and the inclination angle α2 of the second inclined plane is 10°.

[0061] Specifically, after the first and second saw teeth are made, they can be polished smooth. The tops of the first and second saw teeth are made into a small arc shape. Before putting them into use, the first and second saw teeth can be adjusted to fit together. After the adjustment is completed, they can be assembled.

[0062] Specifically, graduation lines are set in easily observable locations on the movable saw blade 3 and pad 4-2.

[0063] It should be noted that the width of the groove on the base plate 4-1 is smaller than the width of the pad plate 4-2, ensuring that the pad plate 4-2 remains in position and does not shift when it moves with the moving saw blade 3.

[0064] Specifically, the second saw tooth and the remaining part of the pad 4-2 are designed separately, and the second saw tooth and the remaining part of the pad 4-2 are fixedly connected by screws.

[0065] Example 2

[0066] This embodiment provides a method for using the adjustable lifting material box of Embodiment 1 above, including:

[0067] Step 1: Place battery 5 on top of pad 4-2;

[0068] Step 2: Tighten screw 6-1 to push bracket 1 forward through mechanical transmission. Bracket 1 slowly drives the moving saw blade 3 forward, inserting the first saw tooth of the moving saw blade 3 into the lower part of the pad 4-2. At this time, the first saw tooth and the second saw tooth mesh forward, ensuring that the pad 4-2 drives one side of the second saw tooth to rise. When the balance position is reached, lock nut 6-2. To descend, simply reverse screw 6-1.

[0069] Specifically, before step 1 above, solid lubricant is applied between the first and second saw teeth for auxiliary lubrication.

[0070] The adjustable lifting material box of this invention allows for relatively smooth and precise adjustment of the battery cell level through the meshing of the saw teeth, reducing the breakage rate and minimizing cost losses. For example, when placing the batteries into the welding machine for string welding, the breakage rate is as low as below 2%.

[0071] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any changes or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in the present invention should be included within the scope of protection of the present invention.

Claims

1. An adjustable lifting material box, characterized in that, The adjustable lifting material box includes a pad (4-2) and a movable sawtooth strip (3); the movable sawtooth strip (3) is provided with a first sawtooth, and the pad (4-2) is provided with a second sawtooth on one side; when the movable sawtooth strip (3) moves, the first sawtooth and the second sawtooth mesh with each other, causing the side of the pad (4-2) with the second sawtooth to be raised or lowered; The movable saw blade (3) is in the shape of a cuboid, and one face of the movable saw blade (3) is a first inclined surface, with the first saw teeth distributed on the first inclined surface; the pad (4-2) is in the shape of a cuboid, and one face of the pad (4-2) is a second inclined surface, with the second saw teeth distributed on the second inclined surface; the inclination angle of the first inclined surface is greater than the inclination angle of the second inclined surface.

2. The adjustable lifting material box according to claim 1, characterized in that, The adjustable lifting material box also includes a base plate (4-1), on which a groove is provided, and a pad plate (4-2) is placed in the groove.

3. The adjustable lifting material box according to claim 2, characterized in that, The adjustable lifting material box also includes a bracket (1), the bracket (1) includes a first support plate (1-1), and the two ends of the first support plate (1-1) are respectively provided with pillars (1-2) perpendicularly connected to the first support plate (1-1); the pillars (1-2) are provided with cylindrical holes, and the two ends of the movable sawtooth (3) are provided with cylinders (3-1), the cylinders (3-1) are fixedly connected to the bracket (1) through the cylindrical holes, and the movable sawtooth (3) can move with the movement of the bracket (1).

4. The adjustable lifting material box according to claim 3, characterized in that, Two first columns (2-1) are provided on the upper surface of the base plate (4-1) near both ends, and the two first columns (2-1) are arranged symmetrically.

5. The adjustable lifting material box according to claim 4, characterized in that, Each of the two first columns (2-1) is provided with a guide hole, and the support column (1-2) on the bracket (1) is guided to move through the guide hole.

6. The adjustable lifting material box according to claim 5, characterized in that, The base plate (4-1) is also provided with a second column (2-2) on its side; the second column (2-2) is located in the middle of the two first columns (2-1).

7. The adjustable lifting material box according to claim 6, characterized in that, The adjustable lifting box also includes a screw (6-1). The first support plate (1-1) and the second column (2-2) are both provided with threaded holes. The screw (6-1) is connected to the second column (2-2) and the bracket (1) in sequence through the threaded holes. By turning the screw (6-1), the bracket (1) is pushed to move.

8. The adjustable lifting material box according to any one of claims 1-7, characterized in that, The adjustable lifting material box also includes multiple material box columns (4-3), which are distributed around the pad plate (4-2).

9. A method of using the adjustable lifting material box according to any one of claims 1-8, characterized in that, include: Step 1: Place the battery (5) on top of the pad (4-2); Step 2: Tighten screw (6-1) to push bracket (1) forward through mechanical transmission. Bracket (1) slowly drives the moving saw blade (3) forward, inserting the first saw tooth of the moving saw blade (3) under the pad (4-2). At this time, the first saw tooth and the second saw tooth mesh forward, ensuring that the pad (4-2) with the second saw tooth is lifted. When the balance position is reached, lock nut (6-2). When descending, reverse screw (6-1).

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