Sintering furnace for solar cell production

Abstract

The utility model relates to the technical field of sintering furnaces for battery production, in particular to a sintering furnace for solar battery production. Comprising a conveying frame, a heating furnace wall is installed on the surface of the upper end of the conveying frame, a temperature control system is installed on the surface of the upper end of the heating furnace wall, a battery silk screen belt is arranged on the surface of the conveying frame, and an adjusting device is arranged on the side wall of one end of the conveying frame and comprises two supporting frames and a reel. One ends of the two supporting frames are fixedly connected with the side wall of the conveying frame, the reel is located on the sides, close to each other, of the two supporting frames, a movable rod penetrates through the sides, close to the reel, of the surfaces of the supporting frames in a threaded mode, one end of the movable rod is rotationally connected with a fixing column, and the surface of the fixing column is fixedly connected with a limiting rod. The sintering furnace for solar cell production has the advantage that the ribbon net can be conveniently rolled and conveyed in the cell production process.

Description

Technical Field

[0001] The utility model relates to the technical field of battery production sintering furnaces, in particular to a sintering furnace for solar cell production. Background Art

[0002] The process of solar cell sintering is mainly to form good contact between the positive and negative electrodes printed by screen printing and the silicon wafer under the action of high temperature. The sintering furnace for solar cell production uses a continuous conveyor belt to gradually sinter the solar cell wafers at high temperature, which is quite common in the production and processing of solar cell wafers.

[0003] The prior art such as the utility model with the publication number of CN205211723U discloses a feeding and conveying device for a solar cell sintering furnace. The patent includes a sintering furnace belt, the feeding end of which is connected to the conveyor belt at the output of the screen printing machine. The conveyor belt is arranged on a fixed support plate through a rotating shaft, and a guiding mechanism is arranged between the conveyor belt and the sintering furnace belt. The guiding mechanism includes a guiding plate and two parallel guiding strips. One end of the guiding strip is fixed on the fixed support plate, and the other end of the guiding strip is correspondingly placed on the ejector pin of the sintering furnace belt; the guiding plate is fixed below the guiding strip, and the leading end of the guiding plate is fixedly connected to the rotating shaft, and the trailing end of the guiding plate is located at the feeding end of the sintering furnace belt. By using the conveying device of the utility model, the collision between the battery wafer and the ejector pin of the sintering furnace belt can be effectively avoided, the fragmentation rate is reduced, and the cost is saved.

[0004] It is found in the production and processing of solar cell wafers that during the processing operation of some components of the battery, it is necessary to sinter the battery screen belt. Since the sintered battery screen belt needs to be manually carried, and the sintered battery screen belt can be used as a current collector for the electrode to improve the current conductivity, it is easy to cause bump damage to the battery screen belt and is not convenient for winding. Summary of the Utility Model

[0005] The purpose of the utility model is to solve the defect that in the prior art, during the processing operation of some components of the battery, it is necessary to sinter the battery screen belt. Since the sintered battery screen belt needs to be manually carried, and the sintered battery screen belt can be used as a current collector for the electrode to improve the current conductivity, it is easy to cause bump damage to the battery screen belt and is not convenient for winding.

[0006] To solve the above technical problems, the utility model provides a sintering furnace for solar cell production, including: a conveying frame, on the upper surface of which a heating furnace wall is installed, on the upper surface of the heating furnace wall a temperature control system is installed, on the surface of the conveying frame a battery wire mesh belt is arranged, and on one side wall of the conveying frame an adjusting device is provided. The adjusting device includes two support frames and a reel. One end of each of the two support frames is fixedly connected to the side wall of the conveying frame. The reel is located on one side where the two support frames are close to each other. A moving rod is threadedly penetrated through the surface of the support frame close to the reel. One end of the moving rod is rotatably connected to a fixed column. A limiting rod is fixedly connected to the surface of the fixed column. The arc surface of the limiting rod slidably penetrates through the surface of the support frame. A fixed ring is fixedly connected to the position of the reel close to the fixed column. Both arc surfaces on both sides of the fixed ring slidably penetrate through a sliding rod. One end of each of the two sliding rods close to each other is fixedly connected to a fixed block. The cross section of the fixed block is arc-shaped. A first spring is sleeved on the arc surface of the sliding rod. Both ends of the first spring are respectively fixedly connected to the sliding rod and the fixed ring. Fixing holes are respectively opened on both sides of the arc surface of the fixed column. The inner wall of the fixing hole is inserted into the surface of the fixed block.

[0007] The effects achieved by the above components are as follows: During the process of processing and producing solar cells, in order to facilitate the winding of the ribbon mesh for battery production sintering, at this time, the ribbon mesh is collected by means of the reel installed at one end of the conveying frame. At the same time, the fixed column moving on the surface of the support frame is used to dock with the reel, and then the fixed blocks inserted on both sides of the fixed ring are docked and limited with the fixing holes opened on both sides of the surface of the fixed column, so as to effectively and conveniently limit and fix the position of the entire reel, and facilitate the winding and binding operation of the ribbon mesh in battery production.

[0008] Preferably, the cross section of the fixed block is arc-shaped, and the fixed block is a cemented carbide block.

[0009] The effects achieved by the above components are as follows: The fixed block made of cemented carbide material can be used for a long time to avoid deformation of the fixed block.

[0010] Preferably, a pull ring is rotatably connected to one end surface of the sliding rod, and the cross-sectional dimension of the pull ring is adapted to the cross-sectional dimension of the sliding rod.

[0011] The effects achieved by the above components are as follows: The position of the sliding rod can be conveniently stretched and moved through the pull ring, and the position of the fixed block can be conveniently stretched.

[0012] Preferably, limiting plates are fixedly connected to both sides of the arc surface of the sliding rod, and the surface of the limiting plate slidably penetrates through the surface of the fixed ring.

[0013] The effects achieved by the above components are as follows: By means of the limit plate, it is possible to prevent the position deviation from occurring when the sliding rod is moved, so that the fixing block cannot be quickly docked and fixed with the fixing hole.

[0014] Preferably, an auxiliary device is provided on one end surface of the conveying frame. The auxiliary device includes a positioning frame. The cross-section of the positioning frame is in a "U" shape. Both ends of the positioning frame are fixedly connected to the side walls of the conveying frame. A positioning rod is fixedly connected to the inner wall of the positioning frame. A plurality of moving columns are slidably connected to the arc surface of the positioning rod. A telescopic rod is fixedly connected to the bottom end of the moving column. A connecting frame is fixedly connected to the bottom end of the telescopic rod. The cross-section of the connecting frame is in a "U" shape. A second spring is sleeved on the arc surface of the telescopic rod. Both ends of the second spring are fixedly connected to the connecting frame and the moving column respectively. A pulley is rotatably connected to the inner wall of the connecting frame.

[0015] The effects achieved by the above components are as follows: During the process of conveying and sintering the battery wire mesh belt, in order to facilitate the temporary extrusion limit protection of the conveyed battery wire mesh belt and prevent the battery wire mesh belt from warping and shifting, at this time, by means of the positioning frame fixed on one end surface of the conveying frame, the moving column on the surface of the positioning rod on the inner wall of the positioning frame is slidably adjusted, so that the bottom end of the moving column presses and limits the pulley in the connecting frame by means of the pulling force generated by the second spring.

[0016] Preferably, a protective sleeve is fixedly connected to the arc surface of the pulley. Anti-slip lines are provided on the surface of the protective sleeve. The protective sleeve is a rubber sleeve.

[0017] The effects achieved by the above components are as follows: During the process of sliding with the battery wire mesh belt by means of the pulley, the friction can be increased by means of the rubber protective sleeve, which is convenient for limiting the position of the entire battery wire mesh belt.

[0018] Preferably, an extrusion shaft is threadedly penetrated through the upper arc surface of the moving column. One end of the extrusion shaft abuts against the arc surface of the positioning rod.

[0019] The effects achieved by the above components are as follows: When adjusting and limiting the entire connecting frame and the pulley, the extrusion shaft at the upper end of the moving column can be used for extrusion, which is convenient for fixing the deflection of the position of the entire pulley.

[0020] Compared with the related art, a sintering furnace for solar cell production provided by the present utility model has the following beneficial effects:

[0021] The present utility model provides a sintering furnace for solar cell production. During the process of processing and producing solar cells, in order to facilitate the winding of the ribbon mesh for battery production sintering, at this time, the ribbon mesh is collected by means of a reel installed at one end of the conveying frame. Meanwhile, a fixed column moving on the surface of the support frame is docked with the reel, and then fixing blocks inserted on both sides of the fixing ring are docked and limited with fixing holes opened on both sides of the surface of the fixed column. By operating the adjusting device, the position of the entire reel can be effectively and conveniently limited and fixed, facilitating the winding and binding operation of the ribbon mesh in battery production.

[0022] During the process of conveying and sintering the battery wire mesh belt, in order to facilitate the temporary extrusion limit protection of the conveyed battery wire mesh belt and prevent the battery wire mesh belt from warping and shifting, at this time, by means of a positioning frame fixed on the surface of one end of the conveying frame, the moving column on the surface of the positioning rod inside the positioning frame is slid and adjusted, so that the bottom end of the moving column squeezes and limits the pulley in the connecting frame by the pulling force generated by the second spring. By operating the auxiliary device, the position of the entire battery wire mesh belt can be conveniently limited. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 is a schematic structural diagram of a sintering furnace for solar cell production provided by the present utility model;

[0024] Figure 2 is Figure 1 the schematic structural diagram of the adjusting device shown in;

[0025] Figure 3 is Figure 2 the split structural diagram of the adjusting device shown in;

[0026] Figure 4 is Figure 1 the schematic structural diagram of the auxiliary device shown in.

[0027] Reference numerals in the figure: 1, conveying frame; 2, heating furnace wall; 3, temperature control system; 4, adjusting device; 401, support frame; 402, reel; 403, fixing ring; 404, moving rod; 405, limiting rod; 406, fixed column; 407, sliding rod; 408, fixing block; 409, fixing hole; 410, first spring; 411, pull ring; 412, limiting plate; 5, auxiliary device; 51, positioning frame; 52, positioning rod; 53, moving column; 54, extrusion shaft; 55, telescopic rod; 56, second spring; 57, connecting frame; 58, pulley; 59, protective sleeve; 6, battery wire mesh belt. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0028] In order to make the purpose, technical solutions and advantages of the present utility model more clear and understandable, 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 only used to explain the present utility model and are not used to limit the present utility model.

[0029] The following describes the specific implementation of the present utility model in detail with reference to specific embodiments.

[0030] Please refer to Figures 1 to 4 , a sintering furnace for solar cell production provided by an embodiment of the present utility model includes: a conveying frame 1, a heating furnace wall 2 is installed on the upper surface of the conveying frame 1, a temperature control system 3 is installed on the upper surface of the heating furnace wall 2, a battery wire mesh belt 6 is arranged on the surface of the conveying frame 1, an adjusting device 4 is provided on one side wall of the conveying frame 1, and an auxiliary device 5 is provided on one surface of the conveying frame 1.

[0031] In an embodiment of the present utility model, please refer to Figure 2 and Figure 3 , the adjusting device 4 includes two support frames 401 and a reel 402. One ends of the two support frames 401 are fixedly connected to the side wall of the conveying frame 1. The reel 402 is located on one side where the two support frames 401 are close to each other. A moving rod 404 is threadedly penetrated through one side of the support frame 401 close to the reel 402. One end of the moving rod 404 is rotatably connected to a fixed column 406. A limiting rod 405 is fixedly connected to the surface of the fixed column 406. The arc surface of the limiting rod 405 slidably penetrates through the surface of the support frame 401. A fixed ring 403 is fixedly connected to the position of the reel 402 close to the fixed column 406. Both arc surfaces on both sides of the fixed ring 403 are slidably penetrated by sliding rods 407. One ends of the two sliding rods 407 close to each other are fixedly connected to a fixed block 408. The cross section of the fixed block 408 is arc-shaped. A first spring 410 is sleeved on the arc surface of the sliding rod 407. Both ends of the first spring 410 are fixedly connected to the sliding rod 407 and the fixed ring 403 respectively. Fixing holes 409 are opened on both sides of the arc surface of the fixed column 406. The inner wall of the fixing hole 409 is inserted into the surface of the fixed block 408. The cross section of the fixed block 408 is arc-shaped. The fixed block 408 is a hard alloy block. A pull ring 411 is rotatably connected to one surface of one end of the sliding rod 407. The cross-sectional dimension of the pull ring 411 is adapted to the cross-sectional dimension of the sliding rod 407. Limiting plates 412 are fixedly connected to both sides of the arc surface of the sliding rod 407. The surface of the limiting plate 412 slidably penetrates through the surface of the fixed ring 403;

[0032] In an embodiment of the present utility model, please refer to Figure 4, the auxiliary device 5 includes a positioning frame 51. The cross-section of the positioning frame 51 is in a "U" shape. Both ends of the positioning frame 51 are fixedly connected to the side walls of the conveying frame 1. A positioning rod 52 is fixedly connected to the inner wall of the positioning frame 51. A plurality of moving columns 53 are slidably connected to the arc surface of the positioning rod 52. A telescopic rod 55 is fixedly connected to the bottom end of the moving column 53. A connecting frame 57 is fixedly connected to the bottom end of the telescopic rod 55. The cross-section of the connecting frame 57 is in a "U" shape. A second spring 56 is sleeved on the arc surface of the telescopic rod 55. Both ends of the second spring 56 are fixedly connected to the connecting frame 57 and the moving column 53 respectively. A pulley 58 is rotatably connected to the inner wall of the connecting frame 57. A protective sleeve 59 is fixedly connected to the arc surface of the pulley 58. Anti-slip lines are provided on the surface of the protective sleeve 59. The protective sleeve 59 is a rubber sleeve. An extrusion shaft 54 threadedly penetrates through the upper arc surface of the moving column 53. One end of the extrusion shaft 54 abuts against the arc surface of the positioning rod 52;

[0033] The working principle of a sintering furnace for solar cell production provided by the present utility model is as follows: During the process of processing and producing solar cells, in order to facilitate the winding of the ribbon mesh for battery production sintering, at this time, the ribbon mesh is collected by means of the reel 402 installed at one end of the conveying frame 1. First, rotate the moving rod 404 on the surface of the support frame 401 to move the fixed column 406 at one end of the moving rod 404. Then, bring the fixed ring 403 on one side of the reel 402 close to the position of the fixed column 406. After that, move the position of the fixed column 406 again, so that the fixed blocks 408 that move along the sliding rods 407 on both sides of the fixed ring 403 are inserted and fixed into the fixing holes 409 provided on the surface of the fixed column 406. At the same time, limit the position by means of the tensile force generated by the first spring 410, so as to limit and fix the position of the entire reel 402, facilitating the winding and binding operation of the ribbon mesh in the battery.

[0034] During the process of conveying and sintering the battery wire mesh belt 6, in order to facilitate the temporary extrusion limit protection of the conveyed battery wire mesh belt 6 and prevent the battery wire mesh belt 6 from warping and shifting, at this time, by means of the positioning frame 51 fixed on the surface of one end of the conveying frame 1, the moving column 53 on the surface of the positioning rod 52 inside the positioning frame 51 is slidably adjusted, so that the pulley 58 in the connecting frame 57 is squeezed and limited by the pulling force generated by the second spring 56 at the bottom end of the moving column 53, thereby limiting the position of the entire battery wire mesh belt 6.

[0035] The circuits and controls involved in the present utility model are all prior arts and will not be elaborated here.

[0036] The above are only embodiments of the present utility model, and thus do not limit the patent scope of the present utility model. Any equivalent structure or equivalent process transformation made by using the content of the specification and drawings of the present utility model, or directly or indirectly applied in other related technical fields, shall similarly be included within the patent protection scope of the present utility model.

Claims

1. A sintering furnace for solar cell production, characterized in that, Including: A conveying rack (1), on the upper surface of the conveying rack (1), a heating furnace wall (2) is installed, on the upper surface of the heating furnace wall (2), a temperature control system (3) is installed, on the surface of the conveying rack (1), a battery wire mesh belt (6) is arranged, on one side wall of the conveying rack (1), an adjusting device (4) is provided, the adjusting device (4) includes two support frames (401) and a reel (402), one ends of the two support frames (401) are fixedly connected to the side wall of the conveying rack (1), the reel (402) is located on one side where the two support frames (401) are close to each other, a moving rod (404) is threadedly penetrated through one side of the support frame (401) close to the reel (402), one end of the moving rod (404) is rotatably connected to a fixing column (406), on the surface of the fixing column (406), a limiting rod (405) is fixedly connected, the arc surface of the limiting rod (405) slidably penetrates through the surface of the support frame (401), at a position of the reel (402) close to the fixing column (406), a fixing ring (403) is fixedly connected, both arc surfaces on both sides of the fixing ring (403) are slidably penetrated through by sliding rods (407), one ends of the two sliding rods (407) close to each other are fixedly connected to fixing blocks (408), the cross section of the fixing block (408) is arc-shaped, a first spring (410) is sleeved on the arc surface of the sliding rod (407), both ends of the first spring (410) are fixedly connected to the sliding rod (407) and the fixing ring (403) respectively, on both sides of the arc surface of the fixing column (406), fixing holes (409) are formed, and the inner wall of the fixing hole (409) is inserted into the surface of the fixing block (408).

2. The sintering furnace for solar cell production according to claim 1, characterized in that, The cross section of the fixing block (408) is arc-shaped, and the fixing block (408) is a cemented carbide block.

3. A sintering furnace for solar cell production according to claim 1, characterized in that, One end surface of the sliding rod (407) is rotatably connected to a pull ring (411), and the cross-sectional dimension of the pull ring (411) is adapted to the cross-sectional dimension of the sliding rod (407).

4. A sintering furnace for solar cell production according to claim 1, characterized in that, On both sides of the arc surface of the sliding rod (407), limiting plates (412) are fixedly connected, and the surface of the limiting plate (412) slidably penetrates through the surface of the fixing ring (403).

5. A sintering furnace for solar cell production according to claim 1, characterized in that, One end surface of the conveying frame (1) is provided with an auxiliary device (5). The auxiliary device (5) includes a positioning frame (51). The cross-section of the positioning frame (51) is in a "U" shape. Both ends of the positioning frame (51) are fixedly connected to the side wall of the conveying frame (1). A positioning rod (52) is fixedly connected to the inner wall of the positioning frame (51). A plurality of moving columns (53) are slidably connected to the arc surface of the positioning rod (52). A telescopic rod (55) is fixedly connected to the bottom end of the moving column (53). A connecting frame (57) is fixedly connected to the bottom end of the telescopic rod (55). The cross-section of the connecting frame (57) is in a "U" shape. A second spring (56) is sleeved on the arc surface of the telescopic rod (55). Both ends of the second spring (56) are fixedly connected to the connecting frame (57) and the moving column (53) respectively. A pulley (58) is rotatably connected to the inner wall of the connecting frame (57).

6. A sintering furnace for solar cell production according to claim 5, characterized in that, A protective sleeve (59) is fixedly connected to the arc surface of the pulley (58). Anti-slip lines are provided on the surface of the protective sleeve (59). The protective sleeve (59) is a rubber sleeve.

7. A sintering furnace for solar cell production according to claim 5, characterized in that, An extrusion shaft (54) threadedly penetrates through the upper arc surface of the moving column (53). One end of the extrusion shaft (54) abuts against the arc surface of the positioning rod (52).

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