Solar cell conveying graphite boat sticking point structure
By designing a solar cell conveying graphite boat clamping structure with balanced force, the existing clamping structure has solved the problem of rolling and intimate contact of the silicon wafer, and the stable fixation and high-quality coating of the silicon wafer are achieved.
Patent Information
- Application Number
- CN202421178776.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-28
- Publication Date
- 2025-04-01
- Estimated Expiration
- 2034-05-28
AI Technical Summary
The existing jam point structure will cause wear of jam point cap when pressed. The silicon wafer is prone to roll on the side when fixed, and the contact surface is not tight, so the silicon wafer cannot be accurately fixed.
A solar cell conveying graphite boat clamping point structure is designed to prevent the tilt of the silicon wafer by balancing the force at the four points, and keep the contact point small during the limiting process to ensure the stable and fixed silicon wafer.
The stable fixation of the silicon wafer is achieved, avoiding the tilt and damage of the silicon wafer, ensuring the close contact between the locking cap and the silicon wafer, and improving the coating quality.
Smart Images
Figure CN222700404U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of solar silicon wafers, in particular to a graphite boat clamping point structure for conveying solar cells. Background Art
[0002] With the rapid development of solar cells, more and more solar cells are entering the civilian field. The coating process is an important link in the production process and plays a pivotal role. The silicon wafer is inserted into the graphite boat and positioned on it through the graphite boat card point;
[0003] The graphite boat carrying the silicon wafer is placed in the PECVD vacuum coating equipment, and the silicon wafer is coated with the PECVD process. In order to fix the silicon wafer in the graphite boat, the graphite boat sheet of the graphite boat is provided with a clamping point for fixing the silicon wafer. Since the clamping point will be worn to a certain extent during the insertion and removal of the silicon wafer, the clamping point needs to be replaced regularly to ensure the good condition of the graphite boat, thereby ensuring the coating quality of the silicon wafer;
[0004] The existing clamping point structure generally presses and fixes the clamping point cap on the point of the graphite sheet. During the pressing, the clamping point cap will be worn. At the same time, when the silicon wafer is fixed, the angle of the silicon wafer is easy to tilt and it is easy to cause damage to the silicon wafer. The contact surface is not tight and the silicon wafer cannot be accurately fixed. Therefore, a clamping point structure for a solar cell conveying graphite boat is proposed to solve the above problems. Utility Model Content
[0005] In order to make up for the deficiencies of the prior art, the card point cap may be worn during pressing, and the angle of the silicon wafer may easily tilt and be damaged when fixing the silicon wafer. The contact surface is not tight and the silicon wafer cannot be accurately fixed. The utility model proposes a card point structure for conveying solar cells with a graphite boat. The force at four points is balanced to avoid tilting of the silicon wafer. The contact point is small and will not cause damage to the silicon wafer during the limiting process. The card points can be limited synchronously on four sides, resulting in better operating effects. At the same time, it ensures that the card point cap is in close contact with the silicon wafer and the fixation is more stable.
[0006] The utility model solves the technical problem by adopting a technical solution of a solar cell conveying graphite boat clamping point structure, comprising a graphite boat body, a clamping slot is arranged inside the graphite boat body, a graphite boat sheet is clamped in the clamping slot, and a silicon sheet is fixed on the graphite boat sheet;
[0007] A card point component, wherein a card point component is arranged on the side of the graphite boat body;
[0008] The card point component includes a swing rod, one end of which is rotatably mounted on the side of the graphite boat sheet through a pin shaft, and one end of which is also equipped with a card point cap;
[0009] A fixed plate is fixed on the side surface of the graphite boat sheet, a swing plate is fixed on the middle side of the swing rod, and a spring is fixed between the swing plate and the fixed plate.
[0010] A positioning pin is fixed at the middle position of the bottom side of the graphite boat, and a rotating ring is rotatably mounted on the positioning pin. A connecting rod is fixed on the circumferential surface of the rotating ring, and a tightening line is connected to the connecting rod. A limiting buckle is fixed at the oblique position of the bottom side of the graphite boat, and a toggle rod is swingably arranged in the limiting buckle, and one end of the toggle rod is fixed on the outer circular surface of the rotating ring. After the silicon wafer is limited by four card point caps 211, the silicon wafer card point operation can be performed. This card point form can prevent the silicon wafer from tilting, and at the same time, the contact point is small, and the silicon wafer will not be damaged during the limiting process. In addition, the four sides can be limited and carded synchronously, and the operation effect is better.
[0011] Preferably, support columns are evenly fixed on the bottom side of the graphite boat, so that when the silicon wafer is placed, the support columns can support the straight graphite boat and prevent the limit buckle and the toggle rod from touching the ground.
[0012] Preferably, a wire hole is opened on the fixed plate, the tightening wire passes through the wire hole, and the other end of the tightening wire is fixed to the side of the swing plate to cooperate to realize the movement of the tightening wire, and the material of the tightening wire is high temperature resistant material.
[0013] Preferably, a screw hole is provided at the other end of the swing rod, and a screw rod is provided at the bottom of the card point cap. The screw rod at the bottom of the card point cap is rotatably assembled in the screw hole, so that the card point cap can be easily replaced after being worn out during use.
[0014] The utility model is beneficial in that:
[0015] The utility model can fix the four sides of the silicon wafer by the card point caps on the four sides of the graphite boat piece, and the swing clamping card point caps are arranged to ensure the accuracy of the limit when limiting, and at the same time, there is no need for pressing operation, the operation is more convenient, and the silicon wafer will not be damaged. After the silicon wafer is limited by the four card point caps, the silicon wafer card point operation can be performed, because the force of the four points is balanced, the silicon wafer can be prevented from tilting, and the contact point is small, so the silicon wafer will not be damaged during the limiting process, and the four sides can be limited and clamped synchronously, the operation effect is better, and at the same time, it is ensured that the card point cap is in close contact with the silicon wafer, and the fixation is more stable. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art are briefly introduced below.
[0017] Figure 1 It is a schematic diagram of the overall three-dimensional structure;
[0018] Figure 2 This is a schematic diagram of the three-dimensional structure of the graphite boat sheet from the first perspective;
[0019] Figure 3 This is a schematic diagram of the three-dimensional structure of the graphite boat sheet from the second viewing angle;
[0020] Figure 4 Schematic diagram of the graphite boat structure from top view
[0021] Figure 5 for Figure 4 Schematic diagram of the cross-sectional structure along the middle line AA;
[0022] Figure 6 for Figure 2 Schematic diagram of the structure of the middle B area;
[0023] In the figure: 1. graphite boat body, 2. graphite boat sheet, 3. silicon sheet, 4. support column, 21. positioning pin, 22. rotating ring, 23. limit buckle, 24. toggle rod, 25. connecting rod, 26. tightening line, 27. swing rod, 28. swing plate, 29. spring, 210. fixing plate, 211. card point cap. DETAILED DESCRIPTION
[0024] 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.
[0025] See also Figure 1-6 As shown, a solar cell conveying graphite boat clamping point structure comprises:
[0026] A graphite boat body 1, wherein a slot is provided inside the graphite boat body 1, a graphite boat sheet 2 is provided in the slot, and a silicon sheet 3 is fixed on the graphite boat sheet 2;
[0027] A card point component is provided on the side of the graphite boat body 1. In order to fix the silicon wafer in the graphite boat 1, a card point for fixing the silicon wafer is provided on the graphite boat sheet 2 of the graphite boat 1. Since the card point will be worn to a certain extent by the silicon wafer during the insertion and removal process, the card point needs to be replaced regularly to ensure the good state of the graphite boat, and then ensure the coating quality of the silicon wafer. By setting the card point component, when the silicon wafer is carded, the card point limiting operation of the silicon wafer can be realized better and faster;
[0028] The clamping point component includes a swing rod 27, one end of which is rotatably mounted on the side of the graphite boat sheet 2 through a pin shaft, and one end of the swing rod 27 is also mounted with a clamping point cap 211;
[0029] A fixing plate 210 is fixed to the side surface of the graphite boat sheet 2 , a swing plate 28 is fixed to the middle side of the swing rod 27 , and a spring 29 is fixed between the swing plate 28 and the fixing plate 210 .
[0030] A positioning pin 21 is fixed at the middle position of the bottom side of the graphite boat sheet 2 , a rotating ring 22 is rotatably mounted on the positioning pin 21 , a connecting rod 25 is fixed on the circumferential surface of the rotating ring 22 , and a tightening wire 26 is connected to the connecting rod 25 .
[0031] A limit buckle 23 is fixed at the bottom oblique angle of the graphite boat sheet 2 . A toggle rod 24 is swingably arranged inside the limit buckle 23 . One end of the toggle rod 24 is fixed on the outer circular surface of the rotating ring 22 .
[0032] The bottom side of the graphite boat 2 is evenly fixed with support columns 4, which can support the straight graphite boat 2 when the silicon wafer is placed, so as to prevent the limit buckle 23 and the toggle rod 24 from touching the ground.
[0033] The fixing plate 210 is provided with a wire hole, the tightening wire 26 passes through the wire hole, and the other end of the tightening wire 26 is fixed to the side of the swing plate 28 to cooperate with the movement of the tightening wire 26, and the material of the tightening wire is high temperature resistant material.
[0034] The other end of the swing rod 27 is provided with a screw hole, and the bottom of the card point cap 211 is provided with a screw rod, and the screw rod at the bottom of the card point cap 211 is rotatably assembled in the screw hole, so that the card point cap 211 can be easily replaced after being worn out.
[0035] When limiting the silicon wafer clamping point, the four sides of the silicon wafer can be clamped and fixed through the clamping point caps 211 on the four sides of the graphite boat 2. During operation, the silicon wafer is placed on the plane of the graphite boat 2, and the toggle rod 24 is toggled to realize the rotation of the rotating ring 22 along the axis of the positioning pin 21, which can drive the four connecting rods 25 to rotate synchronously, thereby realizing the pulling movement of the four tightening wires 26. When the tightening wires 26 are pulled, the swinging rod 27 is pulled to swing under the cooperation of the swinging plate 28, so that the clamping point cap 211 swings outward, and the spring 29 is in a compressed state at this time;
[0036] After the silicon wafer is placed between the four card point caps 211, the toggle rod 24 is released, and under the expansion and recovery action of the spring 29, the four card point caps 211 respectively limit the side edges of the silicon wafer, and under the pulling and cooperation of the tightening wire 26, the rotating ring 22 is rotated and reset;
[0037] After the silicon wafer is limited by four card caps 211, the silicon wafer card point operation can be performed. This card point form can prevent the silicon wafer from tilting. At the same time, the contact point is small, and the silicon wafer will not be damaged during the limiting process. The four sides can be limited and carded synchronously, and the operation effect is better.
[0038] In the description of this specification, the basic principles, main features and advantages of the utility model are shown and described above. For those skilled in the art, they can still modify the technical solutions recorded in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the utility model shall fall within the scope of the utility model claimed for protection.
Claims
1. A solar cell transport graphite boat clamping point structure, characterized in that: include: A graphite boat body (1), wherein a slot is provided inside the graphite boat body (1), a graphite boat sheet (2) is provided in the slot, and a silicon sheet (3) is fixed on the graphite boat sheet (2); A clamping point component, wherein a clamping point component is arranged on the side of the graphite boat body (1); The clamping point component comprises a swing rod (27), one end of which is rotatably mounted on the side of the graphite boat sheet (2) via a pin shaft, and one end of which is also mounted with a clamping point cap (211); A fixed plate (210) is fixed on the side surface of the graphite boat sheet (2), a swing plate (28) is fixed on the middle side of the swing rod (27), and a spring (29) is fixed between the swing plate (28) and the fixed plate (210).
2. A solar cell transport graphite boat clamping point structure according to claim 1, characterized in that: A positioning pin (21) is fixed at the middle position of the bottom side of the graphite boat sheet (2), a rotating ring (22) is rotatably mounted on the positioning pin (21), a connecting rod (25) is fixed on the circumferential surface of the rotating ring (22), and a tightening wire (26) is connected to the connecting rod (25).
3. A solar cell transport graphite boat clamping point structure according to claim 2, characterized in that: A limit buckle (23) is fixed at the bottom oblique angle of the graphite boat sheet (2), a toggle rod (24) is swingably arranged inside the limit buckle (23), and one end of the toggle rod (24) is fixed to the outer circular surface of the rotating ring (22).
4. A solar cell transport graphite boat clamping point structure according to claim 3, characterized in that: Support columns (4) are evenly fixed on the bottom side of the graphite boat sheet (2).
5. The solar cell transport graphite boat clamping point structure according to claim 4, characterized in that: The fixing plate (210) is provided with a wire hole, the tightening wire (26) passes through the wire hole, and the other end of the tightening wire (26) is fixed to the side of the swing plate (28).
6. A solar cell transport graphite boat clamping point structure according to claim 5, characterized in that: The other end of the swing rod (27) is provided with a screw hole, and the bottom of the clamping point cap (211) is provided with a screw rod, and the screw rod at the bottom of the clamping point cap (211) is rotatably assembled in the screw hole.