Cold drying equipment for battery piece
By designing a conveying device with a transfer trough and a curved plate, combining nitrogen blowing and limiting plates, the problem of limited contact surfaces in the cold-drying equipment of the battery cell is solved, and efficient cold-drying of the battery cell is achieved.
Patent Information
- Application Number
- CN202422249773.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-13
- Publication Date
- 2025-07-04
- Estimated Expiration
- 2034-09-13
AI Technical Summary
In existing cold-drying equipment of battery cells, the placement rack blocks part of the battery cells, resulting in limited cold-drying contact surfaces, which require longer to complete drying.
A cold-drying equipment including several conveying devices arranged in parallel between upper and lower spacings is designed, and the automatic flip and continuous cold-drying of the battery cell is achieved by using the transfer trough and arc-shaped plate structure. Combined with the design of nitrogen blowing and limiting plates, it ensures that the battery cell is fully cold-drying.
The continuous and uninterrupted cold drying of the battery cell is achieved, which improves the cold drying efficiency and sufficientness and shortens the drying time.
Smart Images
Figure CN223064196U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of battery chip production, in particular to a cold drying device for battery chips. Background Technique
[0002] A battery chip is a semiconductor thin sheet that converts light energy into electrical energy and is the core component of photovoltaic power generation. Its technical route and process level directly affect the power generation efficiency and service life of photovoltaic modules. Battery chips are mainly divided into monocrystalline silicon and polycrystalline silicon, and there are also amorphous silicon types of battery chips.
[0003] During the production of battery chips, it is necessary to perform a drying process on the battery chips to remove the attached moisture to ensure that the battery chips can maintain good performance during subsequent processing and use. When the cold drying device processes the battery chips, it is necessary to place the battery chips on a placement rack for support to perform the cold drying operation. This results in the placement rack blocking part of the surface of the battery chip, limiting the contact surface of the battery chip for cold drying operation, and thus requiring a longer time for complete drying. Summary of the Utility Model
[0004] The purpose of the utility model is to solve the above-mentioned disadvantages in the prior art and propose a cold drying device for battery chips.
[0005] To achieve the above purpose, the utility model adopts the following technical scheme: design a cold drying device for battery chips, including a cold drying box. Inside the cold drying box, there are several conveying devices arranged at intervals up and down and in parallel. The conveying devices are arranged on a support frame, and the support frame is fixed inside the cold drying box;
[0006] There is a transfer chute between two adjacent conveying devices. The top of the transfer chute corresponds to the discharge end of the conveying device located above, and the bottom of the transfer chute corresponds to the loading end of the conveying device located below;
[0007] Each transfer chute includes a first arc-shaped plate and a second arc-shaped plate coaxially arranged with the first arc-shaped plate. The second arc-shaped plate is placed outside the first arc-shaped plate and has a gap with the first arc-shaped plate. The two sides of the second arc-shaped plate are fixed to the first arc-shaped plate through connecting plates, and the connecting plates are fixed to the conveying device through brackets;
[0008] Among them, the top of the first arc-shaped plate corresponds to the discharge end of the conveying device located above, and the bottom of the second arc-shaped plate corresponds to the loading end of the conveying device located below.
[0009] Preferably, the conveying device includes two parallel cross beams. The relatively far sides of the two cross beams are fixed to the support frame through fixing frames. At the ends between the two cross beams, there are driving rollers. The ends of the driving rollers are rotatably connected to the cross beams. And one end of one of the driving rollers is equipped with a driving motor, and the driving motor is fixed on the cross beam. A conveyor belt is installed on the driving rollers.
[0010] Preferably, a material receiving plate is installed on the top of the first arc-shaped plate. The end of the material receiving plate is arranged tangent to the top surface of the end of the conveyor belt, and the end of the material receiving plate is in clearance fit with the conveyor belt.
[0011] Preferably, at the feeding end of the conveying device at the uppermost position, there is an inclined feeding trough. The feeding trough is fixedly penetrated through the cold drying box, and the bottom of the feeding trough corresponds to the top surface of the conveyor belt. And a cover plate is installed on the top of the feeding trough;
[0012] At the discharging end of the conveying device at the lowermost position, there is an inclined discharging trough. The discharging trough is fixedly penetrated through the cold drying box, and the top of the discharging trough corresponds to the bottom of the conveyor belt.
[0013] Preferably, above one side of each conveying device, there is an inclined cross-flow fan. The cross-flow fan is fixed to the support frame through a bracket. A air supply hood is installed on the air outlet of the cross-flow fan. The air supply hood corresponds to the top surface of the conveyor belt. A flow guide hood is arranged on the air inlet of the cross-flow fan. The flow guide hood is fixedly penetrated through the cold drying box and connected with a conveying pipe. The other end of the conveying pipe is connected to the outlet of a conveying pump. And the inlet of the conveying pump is connected to a nitrogen tank, and the nitrogen tank is arranged on one side of the cold drying box.
[0014] Preferably, on both sides above each conveyor belt, there are limit plates. The bottom of the limit plate is in clearance fit with the top surface of the conveyor belt, and the limit plate is fixed to the cross beam through a connecting frame.
[0015] Preferably, several support rollers are also arranged in each conveyor belt. The support rollers are parallel to the driving rollers, and the ends of the support rollers are rotatably connected to the cross beam.
[0016] Preferably, buffer pads are installed on both sides of the first arc-shaped plate and the second arc-shaped plate that are relatively close to each other.
[0017] The beneficial effects of the design solution proposed by the present utility model in the application process are as follows:
[0018] 1. The cold drying equipment for battery wafers transfers and connects adjacent two conveying devices through a transfer chute, enabling the battery wafers to be put into the cold drying box one by one for cold drying operations, and continuously and uninterruptedly cold drying the battery wafers.
[0019] 2. After the battery cell falls into the transfer chute in the cold drying equipment for battery cells, its own gravity causes it to fall, so that its bottom contacts and slides with the concave surface of the second arc-shaped plate, while the convex surface of the first arc-shaped plate can limit the top of the battery cell, enabling the battery cell to automatically turn over after falling into the transfer chute. In this way, with the setting of multiple conveying devices, the operation of continuously turning over and cold drying the battery cell is realized, ensuring the sufficient degree of cold drying of the battery cell and improving the efficiency of cold drying. BRIEF DESCRIPTION OF THE DRAWINGS
[0020] Figure 1 Structural schematic of the present utility model Figure 1 ;
[0021] Figure 2 Structural schematic of the present utility model Figure 2 ;
[0022] Figure 3 Internal structural schematic of the cold drying box of the present utility model;
[0023] Figure 4 Structural schematic of the conveying device of the present utility model Figure 1 ;
[0024] Figure 5 Structural schematic of the conveying device of the present utility model Figure 2 ;
[0025] Figure 6 Front view of the conveying device of the present utility model;
[0026] Figure 7 Top view of the conveying device of the present utility model.
[0027] In the figure: 1. Cross beam; 2. Driving roller; 3. Conveyor belt; 4. Support roller; 5. Fixed frame; 6. Support frame; 7. First arc-shaped plate; 8. Second arc-shaped plate; 9. Connecting plate; 10. Material receiving plate; 11. Limiting plate; 12. Connecting frame; 13. Cross-flow fan; 14. Air supply hood; 15. Driving motor; 16. Cold drying box; 17. Feeding chute; 18. Cover plate; 19. Flow guiding cover; 20. Delivery pipe; 21. Delivery pump; 22. Nitrogen tank; 23. Discharge chute; 24. Opening; 25. Sealing door. DETAILED DESCRIPTION OF THE EMBODIMENTS
[0028] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments.
[0029] Refer to Figures 1-7, A cold drying device for battery chips, including a cold drying box 16. Inside the cold drying box 16, there are several conveying devices arranged at intervals up and down and in parallel. The conveying device includes two parallel cross beams 1. The relatively far sides of the two cross beams 1 are fixed on the support frame 6 through the fixing frame 5. The support frame 6 is fixed inside the cold drying box 16. At the ends between the two cross beams 1, a driving roller 2 is provided. The end of the driving roller 2 is rotatably connected to the cross beam 1. And one end of one of the driving rollers 2 is equipped with a driving motor 15. The driving motor 15 is fixed on the cross beam 1. A conveyor belt 3 is installed on the driving roller 2. Under the operation of the driving motor 15, the conveyor belt 3 is driven to operate, so as to convey the battery chips placed on the conveyor belt 3.
[0030] Furthermore, in order to ensure that the conveyor belt 3 stably supports the battery chips, several support rollers 4 are also provided inside each conveyor belt 3. The support rollers 4 are parallel to the driving roller 2, and the ends of the support rollers 4 are rotatably connected to the cross beam 1, so that the support rollers 4 support the conveyor belt 3 upward, thereby ensuring the flatness of the top surface of the conveyor belt 3.
[0031] As Figure 4 and Figure 6 shown, there is a transfer chute between two adjacent conveying devices. Each transfer chute includes a first arc plate 7 and a second arc plate 8 arranged coaxially with the first arc plate 7. The second arc plate 8 is placed outside the first arc plate 7 and there is a gap between the second arc plate 8 and the first arc plate 7. And both sides of the second arc plate 8 are fixed to the first arc plate 7 through the connecting plate 9. The connecting plate 9 is fixed to the conveying device through the support. The top of the transfer chute corresponds to the discharge end of the conveying device above, while the bottom of the transfer chute corresponds to the loading end of the conveying device below, that is, the top of the first arc plate 7 corresponds to the discharge end of the conveying device above, and the bottom of the second arc plate 8 corresponds to the loading end of the conveying device below. In the actual use process, the gap between the first arc plate 7 and the second arc plate 8 is smaller than the width of the battery chip itself. Therefore, when the battery chip is conveyed on the conveyor belt 3 above and reaches its discharge position, the battery chip will bend along the end of the conveyor belt 3 and tilt downward under its own gravity and fall. At this time, the bottom of the battery chip will fall on the concave surface of the second arc plate 8 along with the fall and the convex surface limit guidance of the first arc plate 7. Due to the arc structure of the arc plate itself, the battery chip will slide along the arc surface of the second arc plate 8 until it falls on the conveyor belt 3 below. During this process, the top surface of the battery chip on the previous conveyor belt 3 will face the second arc plate 8 after falling into the second arc plate 8, and when the battery chip slides to the next conveyor belt 3 along the second arc plate 8, the original top surface of the battery chip will also be turned into the current bottom surface, so as to realize the turning operation of the battery chip during the conveying process.
[0032] In order to allow the battery cells to fall stably into the transfer trough, a receiving plate 10 is installed on the top of the first curved plate 7. The end of the receiving plate 10 is arranged in a cross-section with the top surface of the end of the conveyor belt 3, and the end of the receiving plate 10 is gap-matched with the conveyor belt 3 to connect the battery cells and the transfer trough, so as to ensure that the battery cells can stably contact with the first curved plate 7 when they are separated from the conveyor belt 3.
[0033] Furthermore, a buffer pad is installed on the side where the first curved plate 7 and the second curved plate 8 are relatively close to each other to buffer the contact between the battery cell and the curved plate to prevent the battery cell from colliding with the curved plate and causing damage during the falling process.
[0034] It should be noted that when the battery cell is being transported and turned over on the conveyor, Figure 2 and Figure 3 As shown, an inclined cross-flow fan 13 is provided above one side of each conveying device, and the cross-flow fan 13 is fixed to the support frame 6 through a bracket. An air supply hood 14 is installed on the air outlet of the cross-flow fan 13, and the air supply hood 14 corresponds to the top surface of the conveyor belt 3. A guide hood 19 is provided on the air inlet of the cross-flow fan 13, and the guide hood 19 is fixedly passed through the cold drying box 16 and is connected to a conveying pipe 20. The other end of the conveying pipe 20 is connected to the outlet of the conveying pump 21, and the inlet of the conveying pump 21 is connected to the nitrogen tank 22, and the nitrogen tank 22 is arranged on one side of the cold drying box 16, that is, nitrogen is continuously blown onto the conveyor belt 3 through the cross-flow fan 13, so that the nitrogen can come into contact with the battery cells, thereby performing a cold drying treatment on the battery cells.
[0035] When nitrogen is blown onto the surface of the battery cells, in order to prevent the battery cells from being displaced by the push of the flowing gas and detached from the conveyor belt 3, limit plates 11 are provided on both sides above each conveyor belt 3. The bottom of the limit plate 11 is clearance-matched with the top surface of the conveyor belt 3, and the limit plate 11 is fixed to the crossbeam 1 through the connecting frame 12, so as to limit the position of the battery cells on the conveyor belt 3 and prevent the battery cells from falling off the conveyor belt 3 and being damaged. In actual use, the front projection position of the connecting plate 9 corresponds to the limit plate 11, so that the battery cells can be displaced between the limit plates 11 in time, and can also stably fall into the transfer trough for turning over.
[0036] Specifically, during use, an inclined feed chute 17 is provided at the feeding end of the conveyor device located at the uppermost position. The feed chute 17 fixedly penetrates the cold dryer 16, and the bottom of the feed chute 17 corresponds to the top surface of the conveyor belt 3. A cover plate 18 is installed at the top of the feed chute 17. By placing the battery cells one by one at the feed chute 17, the battery cells will slide down along the feed chute 17 and fall onto the conveyor belt 3. Through the conveyance of the conveyor belt 3, continuous contact with nitrogen can be achieved, thereby realizing cold drying. Finally, an inclined discharge chute 23 is provided at the discharge end of the conveyor device located at the lowermost position. The discharge chute 23 fixedly penetrates the cold dryer 16, and the top of the discharge chute 23 corresponds to the bottom of the conveyor belt 3. The battery cells are continuously conveyed until they fall into the discharge chute 23 and are discharged from the cold dryer 16 along the discharge chute 23, thus completing the entire cold drying process. It should be noted that a buffer pad is also installed on the surface of the discharge chute 23.
[0037] It should be noted that an opening 25 is provided on one side of the raw material cross-flow fan 13 in the cold dryer 16, and a sealing door 24 is installed on the opening 25, so that people can enter the cold dryer 16 by opening the sealing door 24 to maintain and repair equipment such as the conveyor device.
[0038] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution of the present invention and its inventive concept, makes equivalent substitutions or changes, and should be covered within the protection scope of the present invention.
Claims
1. A cold drying device for battery cells, characterized in that: It includes a cold dryer (16). Inside the cold dryer (16), there are several conveying devices arranged at intervals up and down and in parallel. The conveying devices are arranged on a support frame (6), and the support frame (6) is fixed inside the cold dryer (16). There is a transfer chute between two adjacent conveying devices. The top of the transfer chute corresponds to the discharge end of the conveying device located above, and the bottom of the transfer chute corresponds to the feeding end of the conveying device located below. Each transfer chute includes a first arc-shaped plate (7) and a second arc-shaped plate (8) arranged coaxially with the first arc-shaped plate (7). The second arc-shaped plate (8) is placed outside the first arc-shaped plate (7) and has a spacing from the first arc-shaped plate (7). The two sides of the second arc-shaped plate (8) are fixed to the first arc-shaped plate (7) through connecting plates (9), and the connecting plates (9) are fixed to the conveying device through brackets. Among them, the top of the first arc-shaped plate (7) corresponds to the discharge end of the conveying device located above, and the bottom of the second arc-shaped plate (8) corresponds to the feeding end of the conveying device located below.
2. The cold drying device for battery wafers according to claim 1, characterized in that: The conveying device includes two parallel cross beams (1). The relatively far sides of the two cross beams (1) are fixed to the support frame (6) through fixing frames (5). A driving roller (2) is arranged at the end between the two cross beams (1). The end of the driving roller (2) is rotatably connected to the cross beam (1). One end of one of the driving rollers (2) is equipped with a driving motor (15), and the driving motor (15) is fixed on the cross beam (1). A conveyor belt (3) is installed on the driving roller (2).
3. The cold drying device for battery chips according to claim 2, characterized in that: A receiving plate (10) is installed on the top of the first arc-shaped plate (7). The end of the receiving plate (10) is set tangent to the top surface of the end of the conveyor belt (3), and the end of the receiving plate (10) has a clearance fit with the conveyor belt (3).
4. The cold drying device for battery chips according to claim 2, characterized in that: An inclined feeding chute (17) is provided at the feeding end of the conveying device located at the uppermost position. The feeding chute (17) is fixedly penetrated through the cold dryer (16), and the bottom of the feeding chute (17) corresponds to the top surface of the conveyor belt (3). A cover plate (18) is installed on the top of the feeding chute (17). An inclined discharge chute (23) is provided at the discharge end of the conveying device located at the lowermost position. The discharge chute (23) is fixedly penetrated through the cold dryer (16), and the top of the discharge chute (23) corresponds to the bottom of the conveyor belt (3).
5. The cold drying device for battery chips according to claim 2, wherein: An inclined cross-flow fan (13) is provided above one side of each conveying device. The cross-flow fan (13) is fixed to the support frame (6) through a bracket. An air supply hood (14) is installed on the air outlet of the cross-flow fan (13). The air supply hood (14) corresponds to the top surface of the conveyor belt (3). A flow guide hood (19) is provided at the air inlet of the cross-flow fan (13). The flow guide hood (19) is fixedly penetrated through the cold dryer (16) and connected to a conveying pipe (20). The other end of the conveying pipe (20) is connected to the outlet of a conveying pump (21), and the inlet of the conveying pump (21) is connected to a nitrogen tank (22), and the nitrogen tank (22) is arranged on one side of the cold dryer (16).
6. The cold drying device for battery wafers according to claim 2, wherein: On both sides above each conveyor belt (3), there are limit plates (11). The bottom of the limit plate (11) is in clearance fit with the top surface of the conveyor belt (3), and the limit plate (11) is fixed to the cross beam (1) through a connecting frame (12).
7. The cold drying device for battery chips according to claim 2, characterized in that: In each conveyor belt (3), there are also several support rollers (4). The support rollers (4) are parallel to the driving roller (2), and the ends of the support rollers (4) are rotatably connected to the cross beam (1).
8. The cold drying device for battery chips according to claim 1, characterized in that: Buffer pads are installed on the side where the first arc-shaped plate (7) and the second arc-shaped plate (8) are relatively close to each other.