Graphite boat suitable for photovoltaic cells of different sizes

Abstract

The utility model discloses a graphite boat suitable for photovoltaic cells of different sizes, which comprises inner frames, positioning columns, positioning blocks and ceramic rods, the inner frames are provided with ceramic rod mounting holes and positioning column moving grooves, and the ceramic rods penetrate through the ceramic rod mounting holes to connect the plurality of inner frames side by side; the positioning block is provided with a groove positioning part and a column positioning part, the positioning block makes contact with the side face of the positioning column movable groove through the groove positioning part, the positioning block is fixed in the positioning column movable groove, the column positioning part abuts against the positioning column, and the positioning column is fixed to the preset position of the positioning column movable groove. By adopting the solar cell loading device, the positions of the positioning columns can be adjusted according to the sizes of the solar cells needing to be loaded, so that the solar cells are reliably supported and fixed, and processing flaws are reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to photovoltaic equipment production field especially, it is graphite boat suitable for different size's photovoltaic cell. BACKGROUND

[0002] The photovoltaic cell needs to use the tubular PECVD equipment production currently, and the special gas such as SiH4, NH3 and N2O is passed into furnace tube, and the film layer such as SiNx, SiOx, SiOxNy is deposited respectively in front and back using the principle of glow discharge to achieve the effect of reducing reflection, increasing permeability and passivation, wherein the carrier during coating is graphite boat, and the commercial graphite boat is vertical, needs to install the clamping point at the specific position of graphite boat blade to fix the cell piece, considering the diversity of market demand, the cell piece manufacturer usually produces different size cell pieces to meet the market demand, and the common size is 182*182, 182*184, 182*188, 182*192, 182*210 and the like.

[0003] When the size of cell piece changes greatly, the graphite boat with fixed clamping point position can affect the adhesion of cell piece and blade, and the following consequences are caused: ① the cell piece can be scratched when the automatic mechanical hand feeds and discharges, and then rework is needed; ② the cell piece is easily warped in the process, high-frequency sparking abnormality appears, the process is interrupted, the boat is returned and the coating is repaired, which not only seriously affects the production capacity, but also leads to the low photoelectric conversion efficiency of cell piece; ③ the deflection of cell piece is serious, which seriously affects the appearance of cell piece and then affects the yield. CONTENT OF THE UTILITY MODEL

[0004] The utility model discloses in order to solve the defects of prior art, provide a kind of graphite boat suitable for different size's photovoltaic cell, can be adjusted the position of positioning column according to the size of solar cell piece loaded, to reliably support and fix solar cell piece, reduce processing flaw.

[0005] In order to solve the above technical problems, the utility model provides a kind of graphite boat suitable for different size's photovoltaic cell, including inner frame, positioning column, locating block and ceramic rod, the inner frame is equipped with ceramic rod installation hole and positioning column movable slot, the ceramic rod passes through the ceramic rod installation hole and connects several the inner frame side by side;The locating block has slot positioning part and column positioning part, the locating block is fixed in the positioning column movable slot by the slot positioning part and the side surface of the positioning column movable slot, and is fixed in the preset position of the positioning column movable slot by the column positioning part and the positioning column abutment.

[0006] As the improvement of the above-mentioned scheme, the inner frame is centrally provided with a hollow part, the positioning column movable slot comprises a first movable slot, a second movable slot and a third movable slot, the first movable slot is horizontally arranged below the hollow part, the second movable slot is vertically arranged at the right side of the hollow part, and the third movable slot is vertically arranged at the left side of the hollow part, and the second movable slot is lower than the third movable slot.

[0007] As the improvement of the above-mentioned scheme, the positioning column movable slot comprises a strip-shaped slot body part and slot body end parts located at both ends of the strip-shaped slot body part, and the slot body end parts have arc surfaces matched with the side curvature of the positioning column.

[0008] As the improvement of the above-mentioned scheme, the width of the strip-shaped slot body part is equal to the diameter of the positioning column.

[0009] As the improvement of the above-mentioned scheme, the positioning block is composed of a first positioning component and a second positioning component, the first positioning component has a first rectangular body matched with the width of the strip-shaped slot body part, and one end of the first rectangular body is provided with an arc-shaped socket; the second positioning component has a second rectangular body matched with the width of the strip-shaped slot body part, and one end of the second rectangular body is provided with an arc-shaped protruding part matched with the slot body end part.

[0010] As the improvement of the above-mentioned scheme, the positioning block is composed of two third positioning components, the third positioning component has a third rectangular body matched with the width of the strip-shaped slot body part, one end of the third rectangular body is provided with an arc-shaped socket, and the other end is provided with an arc-shaped protruding part matched with the slot body end part.

[0011] As the improvement of the above-mentioned scheme, the inner frame and the positioning block are both made of graphite.

[0012] As the improvement of the above-mentioned scheme, the length of the positioning column movable slot is 30-40 mm, and the width is 5-9 mm.

[0013] The graphite boat has the following beneficial effects:

[0014] The inner frame of the graphite boat can adjust the position of the positioning column according to the size of the solar cell to be loaded, so as to reliably support and fix the solar cell, ensure the adhesion of the solar cell and the inner frame in the process, and reduce processing defects.

[0015] The above structure can conveniently adjust the positioning column, the positioning column is accurately positioned, the structure is simple, and pollution to the solar cell is not easy to occur. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 is the overall structure schematic view of the graphite boat suitable for photovoltaic cells of different sizes according to an embodiment of the present application.

[0017] Figure 2 is a local structure schematic view of a graphite boat suitable for photovoltaic cells of different sizes according to an embodiment of the present application;

[0018] Figure 3 is a side view of a graphite boat suitable for photovoltaic cells of different sizes according to an embodiment of the present application;

[0019] Figure 4 and Figure 5 are structure schematic views of different embodiments of the positioning block of the present application. DETAILED DESCRIPTION

[0020] In order to make the purpose, technical scheme and advantages of the present application more clear, the present application will be further described in detail below with reference to the drawings. It is hereby declared that the up, down, left, right, front, back, inner and outer orientation words appearing or about to appear in the present application are only based on the drawings of the present application, and are not specific limitations on the present application.

[0021] As Figures 1-3 shown, the present application embodiment provides a graphite boat suitable for photovoltaic cells of different sizes, which comprises an inner frame 1, a positioning column 2, a positioning block 3 and a ceramic rod 4, the inner frame 1 is provided with a ceramic rod mounting hole 11 and a positioning column movable slot 12, the ceramic rod 4 passes through the ceramic rod mounting hole 11 to connect a plurality of inner frames 1 side by side; the positioning block 3 has a slot positioning part 31 and a column positioning part 32, the positioning block 3 is in contact with the side surface of the positioning column movable slot 12 through the slot positioning part 31, and is fixed in the positioning column movable slot 12, and the column positioning part 32 is in abutment with the positioning column 2, so as to fix the positioning column 2 at the preset position of the positioning column movable slot 12. The positioning column 2 protrudes relative to the surface of the inner frame 1, and is used for fixing the solar cell on the surface of the inner frame 1.

[0022] With the above structure, the position of the positioning column 2 can be adjusted according to the size of the solar cell to be loaded, so as to reliably support and fix the solar cell, ensure the adhesion of the solar cell to the inner frame 1 during the process, and reduce processing defects.

[0023] The specific use method of the above scheme is: according to the size of the solar cell, the position of the positioning column 2 of the inner frame 1 is adjusted in advance, so as to adjust the contact point of the positioning column 2 and the solar cell. The specific adjustment method is: the positioning column 2 is placed on the positioning column movable slot 12, the positioning column 2 is fixed in the position of the positioning column movable slot 12 according to the need, different shapes of positioning blocks 3 are selected, the positioning block 3 is embedded in the positioning column movable slot 12, and the positioning column 2 is pressed in the predetermined position of the positioning column movable slot 12. By using the above method, the positioning column 2 can be conveniently adjusted, the positioning of the positioning column 2 is accurate, the structure is simple, and the solar cell is not easy to be polluted.

[0024] Among them, the inner frame 1 is centrally provided with a hollow part 13, the positioning column movable slot 12 includes a first movable slot 12a, a second movable slot 12b and a third movable slot 12c, the first movable slot 12a is horizontally arranged below the hollow part 13, the second movable slot 12b is vertically arranged on the right side of the hollow part 13, the third movable slot 12c is vertically arranged on the left side of the hollow part 13, and the second movable slot 12b is lower than the third movable slot 12c. The positioning column 2 in the three movable slots can fix the bottom and the two sides of the solar cell. The above distribution method can distribute at least three positioning points at a relatively far distance around the solar cell, and the positioning is more reliable.

[0025] Preferably, the positioning column movable slot 12 includes a strip-shaped slot body part 121 and slot body ends 122 located at both ends of the strip-shaped slot body part 121, and the slot body ends 122 have an arc surface matching the side curvature of the positioning column 2. It should be noted that in order to reduce the contact area with the solar cell, the positioning column 2 can be a cylinder, and the slot body ends 122 can stably fix the positioning column 2 at both ends of the positioning column movable slot 12. More preferably, the width of the strip-shaped slot body part 121 is equal to the diameter of the positioning column 2. The strip-shaped slot body part 121 with the same diameter as the positioning column 2 can prevent the positioning column 2 from shaking when fixed at different positions of the positioning column movable slot 12, and ensure that the positioning column 2 is vertically fixed on the inner frame 1.

[0026] As Figure 4As shown, positioning blocks 3 of different shapes can be selected to fix the positioning post 2 at different positions in the positioning post movable groove 12 as needed. As a first embodiment of the positioning block 3, the positioning block 3 consists of a first positioning component 33 and a second positioning component 34. The first positioning component 33 has a first rectangular body 331 that matches the width of the strip groove portion 121, and one end of the first rectangular body 331 is provided with an arc-shaped notch 332. The second positioning component 34 has a second rectangular body 341 that matches the width of the strip groove portion 121, and one end of the second rectangular body 341 is provided with an arc-shaped protrusion 342 that matches the end 122 of the groove. In this embodiment, the positioning block 3 can fix the positioning post 2 at both ends of the positioning post movable groove 12. It can press the positioning post 2 onto the end 122 of the groove through the first positioning component 33, and then fill the remaining space of the positioning post movable groove 12 through the second positioning component 34.

[0027] like Figure 5 As shown, in a second embodiment of the positioning block 3, the positioning block 3 is composed of two third positioning components 35. Each third positioning component 35 has a third rectangular body 351 that matches the width of the strip-shaped groove portion 121. One end of the third rectangular body 351 is provided with an arc-shaped notch 332, and the other end is provided with an arc-shaped protrusion 342 that matches the end portion 122 of the groove. In this embodiment, the positioning block 3 can fix the positioning post 2 in the center of the positioning post movable groove 12. The space on both sides of the positioning post 2 is filled by different third positioning components 35, and the arc-shaped notches 332 of the two third positioning components 35 press and fix the positioning post 2.

[0028] To prevent the solar cells from being contaminated by other materials during processing, both the inner frame 1 and the positioning block 3 are made of graphite.

[0029] Preferably, the length of the positioning post movable groove 12 is 30-40mm and the width is 5-9mm. With the above structure, the positioning post 2 can be fixed in the left, center and right positions of the positioning post movable groove 12, thereby meeting the positioning requirements of solar cells of different sizes.

[0030] The above description is the preferred embodiment of this utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of this invention, and these improvements and modifications are also considered to be within the protection scope of this utility model.

Claims

1. A graphite boat suitable for photovoltaic cells of different sizes, characterized in that, The inner frame, the positioning column, the positioning block and the ceramic rod, The inner frame is provided with a ceramic rod mounting hole and a positioning column movable slot, and the ceramic rod connects several inner frames side by side through the ceramic rod mounting hole; The positioning block has a slot positioning part and a column positioning part, and the positioning block is fixed in the positioning column movable slot through the contact of the slot positioning part with the side surface of the positioning column movable slot. The positioning column is fixed in the preset position of the positioning column movable slot through the abutment of the column positioning part with the positioning column.

2. The graphite boat suitable for different sizes of photovoltaic cells according to claim 1, wherein, The inner frame is provided with a hollow part in the center, and the positioning column movable slot includes a first movable slot, a second movable slot and a third movable slot.

3. The graphite boat suitable for different size photovoltaic cells of claim 1, wherein, The first movable slot is horizontally arranged below the hollow part, the second movable slot is vertically arranged on the right side of the hollow part, and the third movable slot is vertically arranged on the left side of the hollow part.

4. The graphite boat suitable for different size photovoltaic cells of claim 3, wherein, The positioning column movable slot includes a strip-shaped slot body part and slot body end parts located at both ends of the strip-shaped slot body part, and the slot body end parts have arc surfaces matched with the side surface curvature of the positioning column.

5. The graphite boat suitable for different size photovoltaic cells of claim 4, wherein, The width of the strip-shaped slot body part is equal to the diameter of the positioning column.

6. The graphite boat suitable for different size photovoltaic cells of claim 4, wherein, The positioning block is composed of a first positioning component and a second positioning component, the first positioning component has a first rectangular body matched with the width of the strip-shaped slot body part, and one end of the first rectangular body is provided with an arc-shaped socket; the second positioning component has a second rectangular body matched with the width of the strip-shaped slot body part, and one end of the second rectangular body is provided with an arc-shaped protruding part matched with the slot body end part.

7. The graphite boat suitable for different size photovoltaic cells of claim 1, wherein, The positioning block is composed of two third positioning components, the third positioning component has a third rectangular body matched with the width of the strip-shaped slot body part, one end of the third rectangular body is provided with an arc-shaped socket, and the other end is provided with an arc-shaped protruding part matched with the slot body end part.

8. The graphite boat suitable for different size photovoltaic cells of claim 1, wherein, The inner frame and the positioning block are made of graphite. The length of the positioning column movable slot is 30-40mm, and the width is 5-9mm.

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