Sintering furnace capable of improving sintering yield

Abstract

The utility model relates to the field of sintering furnaces, in particular to a sintering furnace capable of improving the sintering yield. Comprising a furnace body, two furnace doors are installed on one side of the furnace body, an adjusting structure is arranged in the furnace body and comprises two lead screws, the two lead screws are rotationally arranged on the two sides of the furnace body in a penetrating mode respectively, the arc surfaces of the lead screws are in threaded connection with adjusting rings, a plurality of sliding plates are fixedly connected to one sides of the adjusting rings, and the sections of the sliding plates are in a convex shape; the arc face of the lead screw is slidably connected with a sliding ring, an annular hole is formed in one side of the sliding ring, and the inner wall of the annular hole is slidably connected with the sliding plate. The sintering furnace capable of improving the sintering yield has the advantages that sintered solar cells of different sizes can be stably fixed in the furnace body, and the stability of the sintering process is improved; the solar cell can be automatically controlled to rotate in the sintering process, so that each part of the cell is uniformly exposed under a heat source, local internal temperature difference is avoided, and the sintering efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of sintering furnaces, and more particularly to a sintering furnace for improving sintering yield. Background Technology

[0002] Solar cell sintering furnaces are key equipment in photovoltaic manufacturing, mainly used for sintering solar cell wafers.

[0003] Utility model CN219531617U discloses a solar cell sintering furnace. The key technical points are: it includes a conveying mechanism for carrying solar cells through the furnace body, comprising a first conveyor belt and a second conveyor belt arranged in parallel; the conveying mechanism also includes a plurality of first ejector pins and a plurality of second ejector pins disposed on the second conveyor belt, the plurality of first ejector pins being spaced apart along the length of the first conveyor belt, and the plurality of second ejector pins being spaced apart along the length of the second conveyor belt, wherein two adjacent first ejector pins and two corresponding adjacent second ejector pins constitute a support unit for supporting a solar cell; the first ejector pins and the second ejector pins each include a column and a heat insulation layer disposed on the upper end of the column, the thermal conductivity of the heat insulation layer being less than that of the column. This utility model's sintering furnace can reduce heat loss and improve ejector pin marks.

[0004] Regarding the above-mentioned content, the following technical defects were found:

[0005] 1. In the existing technology, the sintering furnace cannot limit the position of solar cells of different sizes during use, which will reduce the stability of the sintering process;

[0006] 2. In the existing technology, the sintering furnace cannot control the rotation of the solar cells during use, and cannot ensure that all parts of the cells are evenly exposed to the heat source, which will cause internal temperature differences and reduce sintering efficiency.

[0007] Therefore, it is necessary to provide a new type of sintering furnace to improve sintering yield and solve the above-mentioned technical problems. Utility Model Content

[0008] The purpose of this invention is to address the shortcomings of existing technologies by proposing a sintering furnace that improves sintering yield.

[0009] To solve the above-mentioned technical problems, this utility model provides a sintering furnace for improving sintering yield, comprising: a furnace body, two furnace doors installed on one side of the furnace body, an adjustment structure inside the furnace body, the adjustment structure including two lead screws, the two lead screws respectively rotatably passing through the two sides of the furnace body, an adjusting ring threadedly connected to the arc surface of the lead screws, a plurality of sliding plates fixedly connected to one side of the adjusting rings, the sliding plates having a convex cross-section, a sliding ring slidably connected to the arc surface of the lead screws, an annular hole having an opening on one side of the sliding ring, the inner wall of the annular hole being slidably connected to the sliding plate. The outer wall of the slip ring is fixedly connected to several connecting plates, and a clamping plate is fixedly connected to one side of each of the connecting plates. Driven wheels are fixedly connected to the arc surfaces of the two lead screws. A partition is fixedly connected to one side of the outer wall of the furnace body. A connecting shaft is rotatably passed through the side of the partition. Two driving wheels are fixedly connected to the arc surface of the connecting shaft. A belt drives the arc surfaces of the driving wheels and the driven wheels. A welding plate is fixedly connected to one side of the outer wall of the furnace body. A servo motor is fixedly connected to one side of the welding plate. The output end of the servo motor is fixedly connected to one end of the connecting shaft.

[0010] The aforementioned components achieve the following effects: by setting up the adjustment structure, two effects are achieved: firstly, it can fix sintered solar cells of different sizes firmly in the furnace, improving the stability of the sintering process; secondly, it can automatically control the rotation of the solar cells during the sintering process, so that all parts of the cells are evenly exposed to the heat source, avoiding localized internal temperature differences and improving sintering efficiency.

[0011] Preferably, the lead screw has a positioning hole on its arc surface, and a positioning block is slidably connected to the inner wall of the positioning hole. The positioning block is fixedly connected to the inner wall of the slip ring.

[0012] The effect achieved by the above components is that when the slip ring moves, the positioning block fixed to the inner wall of the slip ring will slide along the inner wall of the positioning hole, thereby preventing the slip ring from rotating and shifting during its movement.

[0013] Preferably, a plurality of anti-slip protrusions are fixedly connected to the side of each of the two clamping plates that are close to each other, and the anti-slip protrusions are evenly distributed on one side of the clamping plates.

[0014] The effect achieved by the above components is that the anti-slip protrusions can make one side of the clamp plate uneven, thereby improving the clamp plate's positioning effect on the solar cells to be sintered.

[0015] Preferably, sealing rings are fixedly connected to both sides of the outer wall of the furnace body, and the inner wall of the sealing ring is in contact with the arc surface of the lead screw.

[0016] The effect achieved by the above components is that the sealing ring can seal the tiny gaps between the lead screw and the furnace body, thereby improving the sealing performance at the connection between the lead screw and the furnace body.

[0017] Preferably, the bottom of the inner wall of the furnace body is provided with an auxiliary structure, the auxiliary structure including a storage box, the storage box is placed at the bottom of the inner wall of the furnace body, two fixed seats are fixedly connected to the upper surface of the storage box, a connecting plate is rotatably connected to the inner wall of the fixed seat, an insertion hole is opened on the side of the connecting plate, and arched plates are fixedly connected to both sides of the inner wall of the furnace body, the inner wall of the arched plate is in contact with the connecting plate, and an insertion rod is slidably inserted through one side of the arched plate, the size of the insertion rod being adapted to the insertion hole.

[0018] The effect achieved by the above components is that, by setting up auxiliary structures, the storage box can collect the waste residue generated during the sintering process, and personnel can easily disassemble and assemble the storage box, thereby facilitating the unified disposal of the waste residue.

[0019] Preferably, a spring is fitted onto the arc surface of the insertion rod, and the two ends of the spring are fixedly connected to the insertion rod and the arched plate, respectively.

[0020] The effect achieved by the above components is that the spring can drive the plug rod to move automatically towards the socket, thereby making the connection between the plug rod and the socket more secure.

[0021] Preferably, a handle is fixedly connected to one side of the storage box, and the handle has a "U" shaped cross-section.

[0022] The effect achieved by the above components is that the moving handle can drive the storage box, thus achieving the effect of convenient control of the storage box.

[0023] Compared with related technologies, the sintering furnace for improving sintering yield provided by this utility model has the following beneficial effects:

[0024] This invention provides a sintering furnace that improves sintering yield. By setting an adjustment structure, it achieves two effects: first, it can fix sintered solar cells of different sizes firmly in the furnace body, improving the stability of the sintering process; second, it can automatically control the rotation of solar cells during the sintering process, so that all parts of the cells are evenly exposed to the heat source, avoiding local internal temperature differences and improving sintering efficiency.

[0025] By setting up auxiliary structures, the collection box can collect the waste residue generated during the sintering process, and personnel can easily disassemble and assemble the collection box, thus facilitating the unified disposal of the waste residue. Attached Figure Description

[0026] Figure 1A schematic diagram of the structure of a sintering furnace for improving sintering yield provided by this utility model;

[0027] Figure 2 for Figure 1 The diagram shows a partial structure.

[0028] Figure 3 for Figure 1 The diagram shows the structural schematic of the adjustment structure.

[0029] Figure 4 for Figure 3 The diagram shows a partial structural disassembly of the adjustment structure.

[0030] Figure 5 for Figure 2 The diagram shows the structure of the auxiliary structure.

[0031] Figure 6 for Figure 2 A partial structural diagram of the auxiliary structure shown.

[0032] The diagram is labeled as follows: 1. Furnace body; 2. Furnace door; 3. Adjustment structure; 301. Lead screw; 302. Adjustment ring; 303. Sliding plate; 304. Slip ring; 305. Annular hole; 306. Connecting plate; 307. Clamping plate; 308. Driven wheel; 309. Partition plate; 310. Connecting shaft; 311. Drive wheel; 312. Belt; 313. Anti-slip protrusion; 314. Positioning hole; 315. Positioning block; 316. Welding plate; 317. Servo motor; 4. Auxiliary structure; 41. Storage box; 42. Handle; 43. Fixing base; 44. Connecting plate; 45. Insertion hole; 46. Arched plate; 47. Insert rod; 48. Spring. Detailed Implementation

[0033] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0034] The specific implementation of this utility model will be described in detail below with reference to specific embodiments.

[0035] Please see Figure 1 and Figure 2 The present invention provides a sintering furnace for improving sintering yield, comprising: a furnace body 1, two furnace doors 2 installed on one side of the furnace body 1, an adjustment structure 3 provided inside the furnace body 1, and an auxiliary structure 4 provided at the bottom of the inner wall of the furnace body 1.

[0036] In the embodiments of this utility model, please refer to Figure 3 and Figure 4The adjusting structure 3 includes two lead screws 301, which are rotatably mounted on both sides of the furnace body 1. An adjusting ring 302 is threaded onto the arc surface of each lead screw 301. Several sliding plates 303 are fixedly connected to one side of the adjusting ring 302. The sliding plates 303 have a convex cross-section. A sliding ring 304 is slidably connected to the arc surface of the lead screw 301. An annular hole 305 is provided on one side of the sliding ring 304. The inner wall of the annular hole 305 is slidably connected to the sliding plate 303. Several connecting plates 306 are fixedly connected to the outer wall of the sliding ring 304. One side of each connecting plate 306 is fixedly connected to... A clamping plate 307 is provided, and driven wheels 308 are fixedly connected to the arc surfaces of two lead screws 301. A partition plate 309 is fixedly connected to one side of the outer wall of the furnace body 1. A connecting shaft 310 is rotatably inserted through the side of the partition plate 309. Two driving wheels 311 are fixedly connected to the arc surface of the connecting shaft 310. A belt 312 drives the arc surfaces of the driving wheels 311 and the driven wheels 308. A welding plate 316 is fixedly connected to one side of the outer wall of the furnace body 1. A servo motor 317 is fixedly connected to one side of the welding plate 316. The output end of the servo motor 317 is fixedly connected to one end of the connecting shaft 310. By setting the adjustment structure 3, two effects are achieved: first, it can fix sintered solar cells of different sizes firmly in the furnace body 1, improving the stability of the sintering process; second, it can automatically control the rotation of the solar cells during the sintering process, so that all parts of the cells are evenly exposed to the heat source, avoiding local internal temperature differences and improving sintering efficiency. The lead screw 301 has a positioning hole 314 on its arc surface. A positioning block 315 is slidably connected to the inner wall of the positioning hole 314, and the positioning block 315 is fixedly connected to the inner wall of the slip ring 304. When the slip ring 304 moves, the positioning block 315 fixed to the inner wall of the slip ring 304 will slide along the inner wall of the positioning hole 314, thereby preventing the slip ring 304 from rotating or shifting during its movement. Several anti-slip protrusions 313 are fixedly connected to the sides of the two clamping plates 307 that are close to each other. The anti-slip protrusions 313 are evenly distributed on one side of the clamping plates 307. The anti-slip protrusions 313 make one side of the clamping plates 307 uneven, thereby improving the limiting effect of the clamping plates 307 on the solar cells to be sintered. Sealing rings are fixedly connected to both sides of the outer wall of the furnace body 1, and the inner wall of the sealing ring is in contact with the arc surface of the lead screw 301. The sealing ring can seal the tiny gap between the lead screw 301 and the furnace body 1, thereby improving the sealing performance at the connection between the lead screw 301 and the furnace body 1.

[0037] In the embodiments of this utility model, please refer to Figure 5 and Figure 6The auxiliary structure 4 includes a storage box 41, which is placed at the bottom of the inner wall of the furnace body 1. Two fixed seats 43 are fixedly connected to the upper surface of the storage box 41. A connecting plate 44 is rotatably connected to the inner wall of the fixed seats 43. An insertion hole 45 is provided on the side of the connecting plate 44. Arched plates 46 are fixedly connected to both sides of the inner wall of the furnace body 1. The inner wall of the arched plates 46 fits against the connecting plate 44. An insertion rod 47 slides through one side of the arched plate 46, and the size of the insertion rod 47 matches the insertion hole 45. By setting up the auxiliary structure 4, the storage box 41 can collect the waste slag generated during the sintering process, and personnel can easily disassemble and assemble the storage box 41, thus facilitating the unified disposal of the waste slag. A spring 48 is fitted onto the arc surface of the insertion rod 47, and the two ends of the spring 48 are fixedly connected to the insertion rod 47 and the arched plate 46, respectively. Spring 48 can drive the insertion rod 47 to move automatically towards the insertion hole 45, thereby making the connection between the insertion rod 47 and the insertion hole 45 more secure. A handle 42 is fixedly connected to one side of the storage box 41. The handle 42 has a "U" shaped cross-section. Moving the handle 42 can drive the storage box 41, achieving the effect of convenient control of the storage box 41.

[0038] The working principle of the sintering furnace for improving sintering yield provided by this utility model is as follows: When the sintering furnace is needed to sinter solar cells, the solar cells to be sintered are first placed between two clamping plates 307 inside the furnace body 1. Then, the two adjusting rings 302 are rotated respectively, so that the adjusting rings 302 move along the arc surface of the lead screw 301 towards the solar cells. When the adjusting rings 302 move, they will drive the sliding plate 303, so that the sliding plate 303 slides along the inner wall of the annular track. At this time, the sliding plate 303 will push... The slip ring 304 moves along the arc of the lead screw 301 towards the solar cell. The slip ring 304 drives the connecting plate 306 and the clamping plate 307. Once the two clamping plates 307 securely hold the solar cell, the furnace door 2 can be closed for sintering. During sintering, the servo motor 317 drives the connecting shaft 310 to rotate. The connecting shaft 310 drives two drive wheels 311 to rotate. The drive wheels 311 drive the driven wheels 308 to rotate via belt 312. 8 drives the lead screw 301, which in turn rotates the solar cell. This allows the solar cell to rotate during sintering, ensuring that all parts of the solar cell are fully baked. After sintering, wait for the internal temperature of the furnace body 1 to cool down, then rotate the adjusting ring 302 to move in the opposite direction. The adjusting ring 302 drives the sliding plate 303, which in turn pulls the sliding ring 304 to move. The sliding ring 304 drives the clamping plate 307. Once the clamping plate 307 separates from the solar cell, the solar cell furnace can be closed. The anti-slip protrusion 313 makes one side of the clamping plate 307 uneven, thereby improving the limiting effect of the clamping plate 307 on the solar cell to be sintered. In addition, when the slip ring 304 moves, the positioning block 315 fixed on the inner wall of the slip ring 304 will slide along the inner wall of the positioning hole 314, thereby preventing the slip ring 304 from rotating and shifting during the movement. Finally, the sealing ring can block the tiny gap between the lead screw 301 and the furnace body 1, thereby improving the sealing performance at the connection between the lead screw 301 and the furnace body 1.

[0039] Waste residue is generated during the sintering of the battery cells in the furnace body 1. The collection box 41 can collect the waste residue. When the waste residue inside the collection box 41 needs to be emptied after sintering, first pull the insertion rod 47 to separate it from the insertion hole 45, then rotate the connecting plate 44 so that the connecting plate 44 rotates along the inner wall of the fixed seat 43. After the connecting plate 44 separates from the inner wall of the arched plate 46, pull the handle 42 to remove the collection box 41 from the furnace body 1. Then the slag inside the collection box 41 can be emptied uniformly. When the collection box 41 needs to be installed back in its original position after emptying, first move the handle 42 to place the collection box 41 at the bottom of the inner wall of the furnace body 1, then rotate the connecting plate 44 to make it fit against the inner wall of the arched plate 46. When the insertion rod 47 is aligned with the insertion hole 45 on the connecting plate 44, release the insertion rod 47 so that it is inserted into the insertion hole 45 under the drive of the spring 48. At this time, the installation of the collection box 41 is completed.

[0040] The circuits and controls involved in this utility model are all existing technologies, and will not be described in detail here.

[0041] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the description and drawings of this utility model, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A sintering furnace for improving sintering yield, characterized by, Include: The furnace body (1), one side of the furnace body (1) is provided with two furnace doors (2), the inside of the furnace body (1) is provided with adjusting structure (3), the adjusting structure (3) includes two lead screws (301), two lead screws (301) are respectively provided with adjusting ring (302) on the arc surface, the adjusting ring (302) is fixedly connected with a plurality of sliding plates (303) on one side, the cross section of the sliding plate (303) is in the shape of convex, the arc surface of the lead screw (301) is slidably connected with a sliding ring (304), the sliding ring (304) is provided with a ring-shaped hole (305) on one side, the inner wall of the ring-shaped hole (305) is slidably connected with the sliding plate (303), the outer wall of the sliding ring (304) is fixedly connected with a plurality of connecting plates (306), a plurality of connecting plates (306) are fixedly connected with a clamping plate (307) on one side, the arc surface of the two lead screws (301) is fixedly connected with a driven wheel (308), the outer wall of the furnace body (1) is fixedly connected with a partition (309) on one side, the side of the partition (309) is rotatably provided with a connecting shaft (310), the arc surface of the connecting shaft (310) is fixedly connected with two driving wheels (311), the arc surface of the driving wheel (311) and the driven wheel (308) is drivingly connected with a belt (312), the outer wall of the furnace body (1) is fixedly connected with a welding plate (316) on one side, the welding plate (316) is fixedly connected with a servo motor (317) on one side, and the output end of the servo motor (317) is fixedly connected with one end of the connecting shaft (310).

2. The sintering furnace for improving sintering yield according to claim 1, wherein The arc surface of the lead screw (301) is provided with a positioning hole (314), and the inner wall of the positioning hole (314) is slidably connected with a positioning block (315).

3. The sintering furnace for improving sintering yield according to claim 1, wherein The arc surface of the lead screw (301) is provided with a positioning hole (314), and the inner wall of the positioning hole (314) is slidably connected with a positioning block (315).

4. The sintering furnace for improving sintering yield according to claim 1, wherein The arc surface of the lead screw (301) is provided with a positioning hole (314), and the inner wall of the positioning hole (314) is slidably connected with a positioning block (315).

5. The sintering furnace for improving sintering yield according to claim 1, wherein The inner wall of the furnace body (1) is provided with an auxiliary structure (4), the auxiliary structure (4) includes a receiving box (41), the receiving box (41) is placed on the inner wall of the furnace body (1), the upper surface of the receiving box (41) is fixedly connected with two fixed seats (43), the inner wall of the fixed seat (43) is rotatably connected with a connecting plate (44), the side of the connecting plate (44) is provided with a bushing (45), the two sides of the inner wall of the furnace body (1) are fixedly connected with an arc plate (46), the inner wall of the arc plate (46) is matched with the connecting plate (44), and the side of the arc plate (46) is slidably provided with a plug rod (47).

6. The sintering furnace for improving sintering yield according to claim 5, wherein The arc surface of the inserting rod (47) is sleeved with a spring (48), and two ends of the spring (48) are fixedly connected with the inserting rod (47) and the arched plate (46) respectively.

7. The sintering furnace for improving sintering yield according to claim 5, wherein One side of the storage box (41) is fixedly connected with a handle (42), and the handle (42) is in a "U" shape in section.

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