CN211929453U - Graphite boat for photovoltaic cell - Google Patents
Graphite boat for photovoltaic cell Download PDFInfo
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- CN211929453U CN211929453U CN202021143657.0U CN202021143657U CN211929453U CN 211929453 U CN211929453 U CN 211929453U CN 202021143657 U CN202021143657 U CN 202021143657U CN 211929453 U CN211929453 U CN 211929453U
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- graphite boat
- graphite
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- boat piece
- photovoltaic cell
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Abstract
The utility model discloses a photovoltaic cell piece graphite boat, which comprises a plurality of first graphite boat pieces and second graphite boat pieces which are distributed in a staggered way in sequence, wherein the first graphite boat pieces and the second graphite boat pieces are connected in series through graphite rods, and the first graphite boat pieces and the second graphite boat pieces are spaced at equal intervals through spacing blocks; a group of windows with equal distance are arranged on the first graphite boat piece and the second graphite boat piece, the windows of the first graphite boat piece and the second graphite boat piece are corresponding to each other, the shape of the windows takes the position of the placed silicon wafer as a reference, four vertexes of the windows are positioned on central lines of four edges of the silicon wafer, the distances from the four vertexes to the center of the silicon wafer are the same, the four vertexes of the windows are opened towards opposite directions or adjacent to two points, and the positions corresponding to the four vertex angles of the silicon wafer are of a solid structure. The utility model discloses can satisfy the coating film technology of jumbo size silicon chip, make contact resistance more even, reduce the heat absorption, ensure the goodness rate of coating film technology.
Description
Technical Field
The utility model belongs to the technical field of solar cell manufacture equipment and specifically relates to a photovoltaic cell piece graphite boat.
Background
The solar photovoltaic cell is a novel cell which directly converts solar light energy into electric energy. Silicon-based silicon photovoltaic cells are commonly used today, including single crystal silicon, polycrystalline silicon, and amorphous silicon photovoltaic cells. The graphite boat is a bearing tool used for carrying out PECVD film coating on solar cells and is formed by connecting a plurality of graphite boat sheets and other accessories in series. The silicon wafer is a substrate of the solar cell, the silicon wafer is placed on the silicon wafer placing position of the graphite boat piece, the silicon wafer is located between the graphite boat pieces, the silicon wafer is clamped through clamping points of the graphite boat pieces, the silicon wafer can be stabilized, and PECVD film coating processing is facilitated. However, the existing graphite boat and graphite boat sheet can only match with the silicon wafers with the size of 156mm or less, and can not match with the silicon wafers with the large size. In order to match with a silicon wafer with a large size of 210mm and the like, the windowing of a graphite boat piece is required to be larger, the existing graphite boat piece adopts a square windowing, the large windowing can not meet the coating requirement on the surface of the silicon wafer, the quality of the silicon wafer is influenced, the firmness of the graphite boat piece is also reduced, the bearing capacity is weakened, and the graphite boat piece is easy to damage in the moving process. The graphite boat is heavy, consumes materials and is inconvenient to move due to the adoption of a small window.
SUMMERY OF THE UTILITY MODEL
The applicant provides a photovoltaic cell graphite boat with a reasonable structure aiming at the defects that the existing graphite boat adopts a square window and cannot reasonably match with a silicon wafer with the size of 210mm or more, and the like, and the graphite boat can meet the requirements of coating films on the silicon wafer while adapting to the large-size silicon wafer, ensures the firmness and reliability of graphite boat pieces, reduces the dead weight of the graphite boat and saves materials.
The utility model discloses the technical scheme who adopts as follows:
a photovoltaic cell piece graphite boat comprises a first graphite boat piece and a second graphite boat piece which are distributed in a staggered mode in sequence, wherein the first graphite boat piece and the second graphite boat piece are connected in series through a graphite rod, and are spaced at equal intervals through spacing blocks; a group of windows with equal distance are arranged on the first graphite boat piece and the second graphite boat piece, the windows of the first graphite boat piece and the second graphite boat piece are corresponding to each other, the shape of the windows takes the position of the placed silicon wafer as a reference, four vertexes of the windows are positioned on central lines of four edges of the silicon wafer, the distances from the four vertexes to the center of the silicon wafer are the same, the four vertexes of the windows are opened towards opposite directions or adjacent to two points, and the positions corresponding to the four vertex angles of the silicon wafer are of a solid structure.
As a further improvement of the above technical solution:
four vertexes of the window are opened towards opposite directions to form a cross-shaped window.
The four vertexes of the window are opened to two adjacent points to form a diamond-shaped window.
The first graphite boat piece and the second graphite boat piece are provided with a plurality of clamping points which are positioned at the left side, the right side and the bottom of each window.
The left side and the right side of the window are respectively provided with one or more than two clamping points, and the lower part of the window is provided with more than two clamping points.
The card sites protrude from the surfaces of the first graphite boat piece and the second graphite boat piece and are used for supporting the placed silicon wafers.
A plurality of holes for the graphite rods to pass through are arranged on the first graphite boat piece and the second graphite boat piece at intervals, and the holes are divided into an upper row and a lower row.
The upper parts of the two ends of the first graphite boat piece are provided with first connecting lug pieces, the lower parts of the two ends of the second graphite boat piece are provided with second connecting lug pieces, and holes for the graphite rods to pass through are formed in the first connecting lug pieces and the second connecting lug pieces.
A graphite block for the graphite rod to pass through is arranged between the adjacent first connecting lugs, the graphite rod is connected with the first connecting lugs in series, and two ends of the graphite rod are locked through graphite nuts.
A graphite block for the graphite rod to pass through is arranged between the adjacent second connecting lug pieces, the graphite rod is connected with the second connecting lug pieces in series, and two ends of the graphite rod are locked through graphite nuts.
The utility model has the advantages as follows:
the utility model discloses a photovoltaic cell piece graphite boat comprises first graphite boat piece and the second graphite boat piece that staggers the distribution in proper order, set up corresponding windowing on first graphite boat piece and the second graphite boat piece, the shape of windowing uses the position after the silicon chip is placed as the reference, four summits of windowing are located the central line on four limits of silicon chip, and four summits reach the silicon chip central distance the same, four summits of windowing are to opposite direction opening or to neighbouring two point openings, the position that four apex angles of silicon chip correspond is solid construction, can satisfy the coating film technology of jumbo size silicon chip, make contact resistance more even, reduce the heat absorption, ensure the goodness rate of coating film technology. The graphite boat can also ensure the firmness and reliability of the graphite boat piece, reduce the dead weight of the graphite boat, save materials and improve the reliability of placing the silicon chip. The utility model discloses the left and right sides and the bottom at every windowing respectively set up the screens point more than one or two, can satisfy the requirement that bears of jumbo size silicon chip.
Drawings
Fig. 1 is a top view of the present invention.
Fig. 2 is a left side view of the present invention.
FIG. 3 is a front view of an embodiment.
Fig. 4 is a front view of another embodiment.
In the figure: 1. a first graphite boat piece; 2. a second graphite boat piece; 3. a graphite rod; 4. a spacer block; 5. a first connecting tab; 6. a second connecting tab; 7. graphite blocks; 8. a graphite nut; 9. a support leg; 10. windowing; 11. a card location; 12. and (3) a silicon wafer.
Detailed Description
The following describes embodiments of the present invention with reference to the drawings.
As shown in fig. 1 to 4, the photovoltaic cell graphite boat comprises a plurality of first graphite boat pieces 1 and second graphite boat pieces 2 which are distributed in a staggered manner in sequence, wherein the second graphite boat piece 2 is clamped between the adjacent first graphite boat pieces 1, and the first graphite boat piece 1 is clamped between the adjacent second graphite boat pieces 2. First graphite boat piece 1 and second graphite boat piece 2 concatenate through graphite rod 3 and are in the same place, and the interval is provided with the hole that a plurality of confession graphite rod 3 passed on first graphite boat piece 1 and the second graphite boat piece 2, the hole divide into two rows from top to bottom, and it has spacer 4 to concatenate on the graphite rod 3 between first graphite boat piece 1 and the second graphite boat piece 2, makes first graphite boat piece 1 and second graphite boat piece 2 separate equal distance each other, and fastening nut locking is passed through at the both ends of graphite rod 3. The upper parts of the two ends of the first graphite boat piece 1 are provided with first connecting lug pieces 5, and the lower parts of the two ends of the second graphite boat piece 2 are provided with second connecting lug pieces 6. The holes for the graphite rods 3 to pass are formed in the first connecting lug pieces 5 and the second connecting lug pieces 6, the graphite blocks 7 for the graphite rods 3 to pass are arranged between the adjacent first connecting lug pieces 5, the graphite rods 3 are connected with the first connecting lug pieces 5 in series, and the two ends of each graphite block are locked through graphite nuts 8. A graphite block 7 for the graphite rod 3 to pass through is arranged between the adjacent second connecting lug plates 6, the graphite rod 3 is connected with the second connecting lug plates 6 in series, and two ends of the graphite rod are locked by graphite nuts 8. The graphite blocks 7 at two ends of the graphite rod 3 of the first connecting lug 5 are downwards correspondingly connected with a support leg 9, and the left support leg 9 and the right support leg 9 are used for placing the graphite boat on the push-pull boat.
A group of windows 10 with equal distance are arranged on the first graphite boat piece 1 and the second graphite boat piece 2, the windows 10 of the first graphite boat piece 1 and the second graphite boat piece 2 are corresponding to each other, and the shapes are consistent. The shape of the window 10 is based on the position of the silicon wafer 12, the silicon wafer 12 is vertically or slightly obliquely placed on the graphite boat, four vertexes of the window 10 are located on the central lines of four sides of the silicon wafer 12, and the distances from the four vertexes to the center of the silicon wafer 12 are the same. Four vertexes of the window 10 form a cross-shaped window towards opposite openings or form a diamond-shaped window towards openings adjacent to two points, and the positions corresponding to the four vertex angles of the silicon wafer 12 are of a solid structure and are not hollowed out, so that the stability of the graphite boat piece after the window 10 is opened is ensured.
A plurality of clamping points 11 are arranged on the first graphite boat piece 1 and the second graphite boat piece 2, and the clamping points 11 are positioned at the left side, the right side and the bottom of each window 10. The card sites 11 protrude from the surfaces of the first graphite boat 1 and the second graphite boat 2 for supporting the silicon wafer 12 to be placed. When the silicon wafer 12 is placed between the first graphite boat 1 and the second graphite boat 2, the silicon wafer is positioned above the clamping points 11 at the bottom and between the left clamping point 11 and the right clamping point 11. As an example, two card sites 11 are respectively disposed on the left and right sides of the window 10, two card sites 11 are disposed below the window 10, and the arrangement of the plurality of card sites 11 is for satisfying the load-bearing requirement of a large-sized silicon wafer.
The above description is illustrative of the present invention and is not intended to limit the present invention, and the present invention may be modified in any manner without departing from the spirit of the present invention.
Claims (10)
1. The utility model provides a photovoltaic cell piece graphite boat which characterized in that: the graphite boat comprises a first graphite boat piece (1) and a second graphite boat piece (2) which are sequentially distributed in a staggered manner, wherein the first graphite boat piece (1) and the second graphite boat piece (2) are connected in series through a graphite rod (3), and the first graphite boat piece (1) and the second graphite boat piece (2) are spaced at equal distances through spacing blocks (4); a group of windows (10) with equal distance are arranged on the first graphite boat piece (1) and the second graphite boat piece (2), the windows (10) of the first graphite boat piece (1) and the second graphite boat piece (2) correspond to each other, the shape of each window (10) takes the position of a silicon wafer (12) after being placed as a reference, four vertexes of each window (10) are positioned on the central lines of four edges of the silicon wafer (12), the distances from the four vertexes to the center of the silicon wafer (12) are the same, the four vertexes of each window (10) are opened towards opposite directions or two adjacent points, and the positions corresponding to the four vertex angles of the silicon wafer (12) are of a solid structure.
2. The graphite boat for photovoltaic cell sheets according to claim 1, wherein: four vertexes of the window (10) are opened oppositely to form a cross-shaped window.
3. The graphite boat for photovoltaic cell sheets according to claim 1, wherein: the four vertexes of the window (10) are opened to two adjacent points to form a diamond-shaped window.
4. The graphite boat for photovoltaic cell sheets according to claim 1, wherein: the first graphite boat piece (1) and the second graphite boat piece (2) are provided with a plurality of clamping points (11), and the clamping points (11) are positioned at the left side, the right side and the bottom of each window (10).
5. The graphite boat for photovoltaic cell sheets according to claim 4, wherein: one or more than two clamping points (11) are respectively arranged at the left side and the right side of the window (10), and more than two clamping points (11) are arranged below the window (10).
6. The graphite boat for photovoltaic cell sheets according to claim 4, wherein: the clamping points (11) protrude out of the surfaces of the first graphite boat piece (1) and the second graphite boat piece (2) and are used for supporting the placed silicon wafer (12).
7. The graphite boat for photovoltaic cell sheets according to claim 1, wherein: a plurality of holes for the graphite rods (3) to pass through are arranged on the first graphite boat piece (1) and the second graphite boat piece (2) at intervals, and the holes are divided into an upper row and a lower row.
8. The graphite boat for photovoltaic cell sheets according to claim 1, wherein: the upper parts of the two ends of the first graphite boat piece (1) are provided with first connection lug pieces (5), the lower parts of the two ends of the second graphite boat piece (2) are provided with second connection lug pieces (6), and holes for the graphite rods (3) to pass through are formed in the first connection lug pieces (5) and the second connection lug pieces (6).
9. The graphite boat for photovoltaic cell sheets according to claim 8, wherein: graphite blocks (7) for the graphite rods (3) to penetrate are arranged between the adjacent first connecting lug pieces (5), the graphite rods (3) are connected with the first connecting lug pieces (5) in series, and the two ends of each graphite rod are locked through graphite nuts (8).
10. The graphite boat for photovoltaic cell sheets according to claim 8, wherein: a graphite block (7) for the graphite rod (3) to pass through is arranged between the adjacent second connecting lug plates (6), the graphite rod (3) is connected with the second connecting lug plates (6) in series, and the two ends of the graphite rod are locked by graphite nuts (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021143657.0U CN211929453U (en) | 2020-06-19 | 2020-06-19 | Graphite boat for photovoltaic cell |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021143657.0U CN211929453U (en) | 2020-06-19 | 2020-06-19 | Graphite boat for photovoltaic cell |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211929453U true CN211929453U (en) | 2020-11-13 |
Family
ID=73320660
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021143657.0U Active CN211929453U (en) | 2020-06-19 | 2020-06-19 | Graphite boat for photovoltaic cell |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211929453U (en) |
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2020
- 2020-06-19 CN CN202021143657.0U patent/CN211929453U/en active Active
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