Quartz boat for photovoltaic cell production

Abstract

The utility model belongs to the technical field of photovoltaic cell production, and particularly relates to a quartz boat for photovoltaic cell production, which comprises two quartz boat baffles, the two quartz boat baffles are arranged in parallel, a connecting rod is connected to the bottom side between the two quartz boat baffles, a limiting rod is connected to the top side between the two quartz boat baffles, and a limiting groove is formed in the limiting rod; a positioning shaft is fixed to the bottom end of the swing rod, a quartz boat foot is assembled on the positioning shaft and located on the bottom side of the quartz boat baffle, the quartz boat foot swings to the position lower than the bottom side edge of the quartz boat baffle, the quartz boat foot is sleeved with a ceramic foot sleeve, and the ceramic foot sleeve is high in melting point and not prone to melting due to the characteristics of the ceramic foot sleeve. And the structure of the furnace tube is not adhered to the furnace tube, so that the adhesion damage of the quartz boat and the furnace tube is avoided, and the bearing effect on the battery piece can be better maintained.

Description

Technical Field

[0001] This utility model belongs to the field of photovoltaic cell production technology, specifically a quartz boat for photovoltaic cell production. Background Technology

[0002] A photovoltaic cell is a device that uses the radiant energy of sunlight to convert it into electrical energy. The production of the cells usually uses trace amounts of boron, phosphorus, antimony, etc. as dopants and is carried out in a high-temperature diffusion furnace to form a PN junction on a silicon wafer.

[0003] When diffusing solar cells, a quartz boat needs to be placed inside the diffusion furnace. During operation, when the boat feet come into contact with the furnace tubes, the boat feet and furnace tubes are prone to sticking together under high temperature conditions. Therefore, a quartz boat for photovoltaic cell production is proposed to address the above problem. Utility Model Content

[0004] To overcome the shortcomings of existing technologies and address the problems of existing equipment, this utility model proposes a quartz boat for photovoltaic cell production.

[0005] The technical solution adopted by this utility model to solve its technical problem is a quartz boat for photovoltaic cell production, including a quartz boat baffle, two quartz boat baffles arranged side by side, a connecting rod connected to the bottom side between the two quartz boat baffles, and a limiting rod connected to the top side between the two quartz boat baffles, with a limiting groove formed on the limiting rod.

[0006] A swing rod has a sliding hole in the middle. A positioning rod is fixed on one side of the quartz boat baffle. The positioning rod is set in the sliding hole, and a limit cap is fixed at the end of the positioning rod. The diameter of the limit cap is larger than the diameter of the hole of the movable block.

[0007] A positioning shaft is fixed to the bottom end of the swing rod. A quartz boat foot is mounted on the positioning shaft. The quartz boat foot is located on the bottom side of the quartz boat baffle. A ceramic foot sleeve is fitted on the outside of the quartz boat foot. The top of the ceramic foot sleeve is provided with a buckle that engages with the bottom of the quartz boat foot. The ceramic foot sleeve is fitted on the outside of the quartz boat foot. Due to its inherent characteristics, the swing rod has a high melting point and is not easily melted. As a structure with the furnace tube, it will not stick to the furnace tube, avoiding adhesion and damage to the quartz boat and the furnace tube, and better maintaining the load-bearing effect on the battery cells.

[0008] Preferably, a slide rail is vertically arranged in the middle of one side of the quartz boat baffle, and a second fixing plate and a first fixing plate are fixed at the upper and lower ends of the slide rail, respectively, and a lead screw is rotatably arranged between the second fixing plate and the first fixing plate.

[0009] Preferably, a movable block is rotatably mounted on the lead screw, and a sliding groove is provided on the side of the movable block. The movable block is slidably engaged on the slide rail, and connecting ears are fixed on both sides of the movable block. The connecting ears are connected to the swing rod by a pin.

[0010] Preferably, a connecting plate is fixed on the other side of the quartz boat baffle, and a limit buckle is fixed on the connecting plate. One end of the positioning shaft is swung and locked in the slot at the bottom of the limit buckle. The limit buckle can limit the other end of the positioning shaft to prevent the quartz boat feet from falling off.

[0011] Preferably, a gear plate is fixed to the top of the lead screw, and a rotating handle is fixed to the eccentric position on the top side of the gear plate. By rotating the rotating handle, the rotation of the gear plate can be controlled more conveniently.

[0012] Preferably, a mounting plate is fixed to one side of the top of the quartz boat baffle. A rod hole is laterally opened inside the mounting plate, and a push rod is laterally inserted into the rod hole. A positioning cap is fixed to one end of the push rod, and a spring is fixed between the positioning cap and the side wall of the mounting plate. The spring is sleeved on the outside of the push rod, and a limiting tooth plate is fixed to the other end of the push rod. The teeth of the limiting tooth plate are engaged in the tooth groove of the toothed disc. Under the action of the spring, the teeth of the limiting tooth plate are engaged in the tooth groove of the toothed disc, which can prevent the toothed disc from rotating, thereby stabilizing the moving block and ensuring the stability of the quartz boat foot.

[0013] Preferably, a damping shaft is rotatably mounted inside the connecting plate, and a first limiting swing plate and a second limiting swing plate are fixed at both ends of the damping shaft. The first limiting swing plate and the second limiting swing plate are located on both sides of the quartz boat foot. After the ceramic foot is installed, the ceramic foot is limited by the downward swing of the first limiting swing plate and the second limiting swing plate to prevent it from falling off during use.

[0014] The advantages of this utility model are:

[0015] This utility model uses a swing rod to gradually lower the quartz boat feet after the swing rod swings until the quartz boat feet swing to a position lower than the bottom side of the quartz boat baffle. Ceramic foot sleeves are fitted over the outside of the quartz boat feet. Due to their inherent properties, ceramic foot sleeves have a high melting point and are not easily melted. As a structure that connects to the furnace tube, they will not stick to the furnace tube, thus avoiding adhesion damage between the quartz boat and the furnace tube and better maintaining the load-bearing effect on the solar cells.

[0016] The downward sliding of the movable block, achieved by the rotation of the gear plate, pushes the top of the swing rod downward, while the sliding of the positioning rod within the sliding hole allows the bottom of the swing rod to swing upward. At this time, one end of the positioning shaft also disengages from the slot at the bottom of the limit buckle. When replacing, the ceramic foot sleeve is pulled away from the quartz boat foot, and a new ceramic foot sleeve is replaced. This completes the replacement of the ceramic foot sleeve. After replacement, the swing rod can be reset. Since the ceramic foot sleeve is a protective structure, it wears a lot. This design saves replacement costs and improves the replacement efficiency of the boat foot. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the overall three-dimensional structure;

[0019] Figure 2 A schematic diagram of the side structure of the quartz boat baffle;

[0020] Figure 3 This is a schematic diagram of the gear disc limiting structure;

[0021] Figure 4 This is a schematic diagram of the overall and partial top-down structure;

[0022] Figure 5 for Figure 4 Schematic diagram of the structure of region A in the middle;

[0023] In the diagram: 1. Quartz boat baffle, 2. Limiting rod, 3. Connecting rod, 4. Limiting groove, 5. Gear plate, 6. Rotating handle, 7. Limiting buckle, 8. Sliding hole, 9. Positioning shaft, 10. Quartz boat foot, 11. Slide rail, 12. Connecting ear, 13. Swing rod, 14. Fixed rod, 15. Positioning rod, 16. First fixed plate, 17. Lead screw, 18. Movable block, 19. Second fixed plate, 20. Connecting plate, 21. Limiting gear plate, 22. Mounting plate, 23. Positioning cap, 24. Spring, 25. Push rod, 26. Ceramic foot sleeve, 27. First limiting swing plate, 28. Damping shaft, 29. Second limiting swing plate. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.

[0025] Please see Figure 1-5 As shown, a quartz boat for photovoltaic cell production includes a quartz boat baffle 1, two quartz boat baffles 1 are arranged side by side, a connecting rod 3 is connected to the bottom side between the two quartz boat baffles 1, and a limiting rod 2 is connected to the top side between the two quartz boat baffles 1, with a limiting groove 4 formed on the limiting rod 2.

[0026] A swing rod 13 has a sliding hole 8 in the middle. A positioning rod 15 is fixed on one side of the quartz boat baffle 1. The positioning rod 15 is set in the sliding hole 8, and a limit cap is fixed at the end of the positioning rod 15. The diameter of the limit cap is larger than the hole diameter of the movable block 18.

[0027] The positioning shaft 9 is fixed at the bottom end of the swing rod 13. A quartz boat foot 10 is mounted on the positioning shaft 9. The quartz boat foot 10 is located on the bottom side of the quartz boat baffle 1. A ceramic foot sleeve 26 is fitted on the outside of the quartz boat foot 10. The top of the ceramic foot sleeve 26 is provided with a buckle that engages with the bottom of the quartz boat foot 10. When in use, the ceramic foot sleeve 26 is locked in the bottom groove of the quartz boat foot 10. The ceramic foot sleeve 26 serves as a support for the quartz boat. Due to the inherent properties of ceramic, the ceramic foot sleeve 26 has a high melting point and is not easily melted. As a structure with the furnace tube, it will not stick to the furnace tube, avoiding adhesion damage between the quartz boat and the furnace tube, and better maintaining the load-bearing effect on the battery cells.

[0028] A slide rail 11 is vertically installed in the middle of one side of the quartz boat baffle 1. A second fixing plate 19 and a first fixing plate 16 are fixed to the upper and lower ends of the slide rail 11, respectively. A lead screw 17 is rotatably connected between the second fixing plate 19 and the first fixing plate 16. A movable block 18 is rotatably mounted on the lead screw 17. A sliding groove is provided on the side of the movable block 18, which is slidably engaged with the slide rail 11. Connecting ears 12 are fixed to both sides of the movable block 18. The connecting ears 12 are connected to the swing rod 13 via pins. To facilitate the replacement of the quartz boat feet 10, during replacement… The rotation of the gear plate 5 causes the movable block 18 to slide downwards, which pushes the top of the swing rod 13 to swing downwards. The sliding of the positioning rod 15 in the sliding hole 8 allows the bottom of the swing rod 13 to swing upwards. At this time, one end of the positioning shaft 9 also disengages from the slot at the bottom of the limit buckle 7. When replacing, the quartz boat foot 10 is pulled out of the positioning shaft 9 and replaced with a new quartz boat foot 10. This not only replaces the quartz boat foot 10, but also allows the swing rod 13 to swing back to its original position. Since the quartz boat foot 10 is a boat foot, it is subject to greater wear. This design saves on replacement costs and improves the replacement efficiency of the boat foot.

[0029] A connecting plate 20 is fixed on the other side of the quartz boat baffle 1. A limit buckle 7 is fixed on the connecting plate 20. One end of the positioning shaft 9 is swung and locked in the slot at the bottom of the limit buckle 7. The limit buckle 7 can limit the other end of the positioning shaft 9 to prevent the quartz boat foot 10 from falling off.

[0030] The top of the lead screw 17 is fixed with a gear plate 5, and a rotating handle 6 is fixed at an eccentric position on the top side of the gear plate 5. By rotating the rotating handle 6, the rotation of the gear plate 5 can be controlled more conveniently.

[0031] A mounting plate 22 is fixed to one side of the top of the quartz boat baffle 1. A rod hole is laterally opened inside the mounting plate 22, and a push rod 25 is laterally inserted into the rod hole. A positioning cap 23 is fixed to one end of the push rod 25. A spring 24 is fixed between the positioning cap 23 and the side wall of the mounting plate 22. The spring 24 is sleeved on the outside of the push rod 25. A limiting toothed plate 21 is fixed to the other end of the push rod 25. The teeth of the limiting toothed plate 21 engage with the tooth grooves of the toothed disc 5. During operation, after replacing the boat foot, in order to ensure the stability of the quartz boat foot 10, it is necessary to ensure the stability of the movable block 18. It is necessary to limit the rotation of the gear plate 5. When limiting the gear plate 5, the push rod 25 can be pushed to slide within the mounting plate 22 under the retraction operation, so that the teeth of the limiting tooth plate 21 are locked in the tooth groove of the gear plate 5, which can prevent the gear plate 5 from rotating, thereby stabilizing the movable block 18 and ensuring the stability of the quartz boat foot 10.

[0032] The connecting plate 20 has a damping shaft 28 rotatably mounted inside, and the two ends of the damping shaft 28 are respectively fixed with a first limiting swing plate 27 and a second limiting swing plate 29. The first limiting swing plate 27 and the second limiting swing plate 29 are respectively located on both sides of the quartz boat foot 10. After the ceramic foot sleeve 26 is installed, the ceramic foot sleeve 26 is limited by the downward swing of the first limiting swing plate 27 and the second limiting swing plate 29 to prevent it from falling off during use.

[0033] Working principle: When diffusing solar cells, a quartz boat needs to be placed inside the diffusion furnace. During operation, when the boat feet come into contact with the furnace tube, the boat feet and furnace tube are prone to sticking under high temperature. To avoid sticking between the boat feet and furnace tube;

[0034] The quartz boat baffle 1, the limiting rod 2 and the connecting rod 3 constitute the main structure of the quartz boat. The limiting rod 2 is provided with a limiting groove 4, which can facilitate the insertion and limiting of the battery cells.

[0035] A swing rod 13 is provided on the bottom side of the quartz boat baffle 1. A positioning shaft 9 is provided on the swing rod 13. A quartz boat foot 10 is mounted on the positioning shaft 9, and a ceramic foot sleeve 26 is clamped on the outside of the quartz boat foot 10.

[0036] In use, rotating the handle 6 drives the gear plate 5 to rotate, thereby rotating the lead screw 17. During the rotation of the lead screw 17, the movable block 18 moves upward. Under the limiting cooperation of the positioning rod 15, the swing rod 13 can swing. After the swing rod 13 swings, the quartz boat foot 10 gradually descends until the quartz boat foot 10 swings to a position lower than the bottom side of the quartz boat baffle 1. The ceramic foot sleeve 26 is used as a support for the quartz boat. Due to its ceramic properties, the ceramic foot sleeve 26 has a high melting point and is not easy to melt. As a structure with the furnace tube, it will not stick to the furnace tube, avoiding the adhesion and damage of the quartz boat and the furnace tube, and can better maintain the load-bearing effect of the battery cells.

[0037] To facilitate the replacement of the ceramic foot cover 26, during replacement, the toothed disc 5 rotates, causing the movable block 18 to slide downwards, which pushes the top of the swing rod 13 to swing downwards. The positioning rod 15 slides in the sliding hole 8, allowing the bottom of the swing rod 13 to swing upwards. At this time, one end of the positioning shaft 9 also disengages from the slot at the bottom of the limit buckle 7. During replacement, the ceramic foot cover 26 is pulled out of the quartz boat foot 10 and a new ceramic foot cover 26 is replaced. This not only replaces the ceramic foot cover 26, but also allows the swing rod 13 to swing back to its original position. Since the ceramic foot cover 26 is a protective structure, it is subject to significant wear. This design helps to save replacement costs and improve the replacement efficiency of the boat foot.

[0038] After replacing the boat feet, in order to ensure the stability of the quartz boat feet 10, it is necessary to ensure the stability of the movable block 18. It is necessary to limit the rotation of the gear plate 5. When limiting the gear plate 5, under the retraction operation of the push rod 25, the push rod 25 can be pushed to slide in the mounting plate 22, so that the teeth of the limiting tooth plate 21 are locked in the tooth groove of the gear plate 5, which can prevent the gear plate 5 from rotating, so as to stabilize the movable block 18 and thus ensure the stability of the quartz boat feet 10.

[0039] When the gear plate 5 needs to rotate, pull the positioning cap 23, and with the cooperation of the push rod 25, the limiting gear plate 21 will be separated from the gear plate 5.

[0040] After the ceramic foot cover 26 is installed, the lowering of the first limiting swing plate 27 and the second limiting swing plate 29 limits the ceramic foot cover 26, preventing it from coming off during use.

[0041] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0042] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A quartz boat for photovoltaic cell production, characterized by: include: Quartz boat baffle (1), two quartz boat baffles (1) are arranged side by side, a connecting rod (3) is connected between the bottom side of the two quartz boat baffles (1), a limiting rod (2) is connected between the top side of the two quartz boat baffles (1), and a limiting groove (4) is opened on the limiting rod (2); A swing rod (13) is provided with a sliding hole (8) in the middle. A positioning rod (15) is fixed on one side of the quartz boat baffle (1). The positioning rod (15) is set in the sliding hole (8), and a limit cap is fixed at the end of the positioning rod (15). The diameter of the limit cap is larger than the diameter of the hole of the movable block (18). The positioning shaft (9) is fixed at the bottom end of the swing rod (13). A quartz boat foot (10) is mounted on the positioning shaft (9). The quartz boat foot (10) is located on the bottom side of the quartz boat baffle (1). A ceramic foot sleeve (26) is fitted on the outside of the quartz boat foot (10). The top of the ceramic foot sleeve (26) is provided with a buckle that engages with the bottom of the quartz boat foot (10).

2. The quartz boat for producing a photovoltaic cell according to claim 1, wherein: A slide rail (11) is vertically arranged in the middle of one side of the quartz boat baffle (1). A second fixing plate (19) and a first fixing plate (16) are fixed at the upper and lower ends of the slide rail (11), respectively. A lead screw (17) is rotatably arranged between the second fixing plate (19) and the first fixing plate (16).

3. The quartz boat for producing a photovoltaic cell according to claim 2, wherein: A movable block (18) is rotatably mounted on the lead screw (17). A sliding groove is provided on the side of the movable block (18). The movable block (18) is slidably mounted on the slide rail (11). Connecting ears (12) are fixed on both sides of the movable block (18). The connecting ears (12) are connected to the swing rod (13) by a pin.

4. The quartz boat for producing a photovoltaic cell according to claim 1, wherein: A connecting plate (20) is fixed on the other side of the quartz boat baffle (1). A limit buckle (7) is fixed on the connecting plate (20). One end of the positioning shaft (9) is swung and locked in the slot at the bottom of the limit buckle (7).

5. The quartz boat for producing a photovoltaic cell according to claim 3, wherein: The top end of the lead screw (17) is fixed with a gear plate (5), and a rotating handle (6) is fixed at the eccentric position on the top side of the gear plate (5).

6. The quartz boat for producing a photovoltaic cell according to claim 1, wherein: A mounting plate (22) is fixed to one side of the top of the quartz boat baffle (1). A rod hole is opened horizontally inside the mounting plate (22), and a push rod (25) is inserted horizontally through the rod hole. A positioning cap (23) is fixed to one end of the push rod (25). A spring (24) is fixed between the positioning cap (23) and the side wall of the mounting plate (22). The spring (24) is sleeved on the outside of the push rod (25).

7. The quartz boat for producing a photovoltaic cell according to claim 6, wherein: The other end of the push rod (25) is fixed with a limiting tooth plate (21), and the teeth of the limiting tooth plate (21) are engaged in the tooth groove of the toothed disc (5).

8. The quartz boat for producing a photovoltaic cell according to claim 4, wherein: The connecting plate (20) is rotatably mounted with a damping shaft inside, and a first limiting swing plate (27) and a second limiting swing plate (29) are fixed at both ends of the damping shaft, respectively. The first limiting swing plate (27) and the second limiting swing plate (29) are located on both sides of the quartz boat foot (10).

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