Insertion piece type drying furnace

Abstract

The utility model discloses an inserting piece type drying furnace which comprises at least one drying module, the drying module comprises a lower module and an upper module, a drying cavity is defined between the upper module and the lower module, two backflow devices which are symmetrically distributed up and down are arranged in the drying cavity, and the two backflow devices are arranged in the drying cavity. And each backflow device circularly heats the gas in the drying cavity and blows the heated gas to the surface of the battery in the vertical direction. The transmission device penetrates through the drying module in the first direction and is used for transmitting the battery pieces, the transmission device comprises a plurality of transmission supports which move synchronously, each transmission support comprises at least one limiting space with an opening in one end, and only one battery piece can be placed in each limiting space; the battery piece located in the drying cavity is inserted into the limiting space in an inclined state. The drying furnace facilitates transmission of the battery pieces, and the drying effect is good.

Description

Technical Field

[0001] The utility model relates to the technical field of solar cell processing equipment, in particular to an inserting type drying furnace. Background Art

[0002] The inserting type drying furnace is one of the drying equipment for solar cells. Its drying module and transmission module are two important components. Solar cells are usually transported vertically into the drying module through the transmission module for drying. In the prior art, the drying module is usually a hot air circulation heating device. Most drying modules have inner and outer chambers, a suction device, a heating device, and a drying cavity. The suction device can suck the gas in the outer chamber into the inner chamber and discharge it. The heating device is arranged at a narrow notch between the inner and outer chambers. There is a makeup air inlet above the outer chamber. Through the heating of the heating device and the continuous replenishment of the heat transfer medium at the makeup air inlet, the long-term drying operation of the equipment is realized. However, this circulation method undoubtedly increases the difficulty of hot air circulation. The gas in the drying cavity is difficult to enter the outer chamber, resulting in continuous loss of high-temperature gas and continuous increase in energy consumption. At the same time, the transmission effect of the transmission module is not good, which affects the efficiency of the drying furnace. Summary of the Utility Model

[0003] To overcome the above disadvantages, the purpose of the utility model is to provide an inserting type drying furnace, which is convenient for the transmission of solar cells and has a good drying effect.

[0004] To achieve the above purpose, the technical solution adopted by the utility model is: an inserting type drying furnace, comprising:

[0005] A drying module, at least one drying module is arranged along a first direction. The drying module includes a lower module and an upper module. A drying cavity is defined between the upper module and the lower module. Two reflux devices are symmetrically distributed up and down in the drying cavity. Each reflux device circulates and heats the gas in the drying cavity, and blows the heated gas vertically onto the surface of the solar cell.

[0006] A transmission device, the transmission device penetrates through the drying module along the first direction and is used for transmitting solar cells. The transmission device includes a plurality of synchronously moving transmission brackets. Each transmission bracket includes at least one limiting space with an open end. Only one solar cell can be placed in each limiting space. The solar cells located in the drying cavity are inserted into the limiting spaces in an inclined state and move along the first direction.

[0007] The beneficial effects of the utility model are as follows:

[0008] 1. The reflux mechanism forms a circulating air flow in the drying chamber, circularly heats the gas in the drying chamber, and blows the heated gas vertically onto the surface of the battery cells. The reflux device circularly heats the already heated gas in the drying chamber, reduces the leakage of the gas in the drying chamber, and reduces energy loss.

[0009] 2. The transmission device uses a transmission bracket to transmit the silicon wafers, so that the battery cells enter the drying chamber in an inclined state, with a large contact area with the gas, improving the drying effect.

[0010] Furthermore, each of the reflux devices includes:

[0011] A partition assembly, the partition assembly is fixed to the side wall of the drying chamber, the partition assembly divides the drying chamber into a circulating air cavity and a process cavity in the vertical direction, the battery cells can move in the process cavity in an inclined state along a first direction, and a plurality of air inlet holes are provided on both sides of the partition assembly in a second direction, and a plurality of air outlet holes are arranged in an array between the air inlet holes on both sides;

[0012] A reflux mechanism, the reflux mechanism is located in the circulating air cavity, and the reflux mechanism is used to extract the gas in the process cavity from the air inlet holes and heat it, and then blow the heated gas vertically onto the surface of the battery cells through the air outlet.

[0013] The air outlets are arranged on both sides of the partition assembly in the second direction. Since there are no battery cells here and the temperature requirement is low, even if the gas flows back into the circulating air cavity, it will not affect the drying of the battery cells. The air outlets are arranged in an array between the air inlet holes on both sides to uniformly dry the battery cells below the air outlets.

[0014] Furthermore, the reflux mechanism includes:

[0015] A heating box body, there are gaps between the heating box body and the side wall of the circulating air cavity and the partition assembly, and the heating box body forms a heating cavity capable of heating the gas;

[0016] A gas pipeline, the gas pipeline is directly connected to the heating cavity and the air inlet hole;

[0017] A turbo fan, the turbo fan is used to blow the gas heated in the heating cavity to the surroundings, and the gas blown by the turbo fan enters the process cavity vertically downward through the gap from the air outlet hole.

[0018] Furthermore, the heating box body is provided with a gas outlet on the side away from the partition assembly, the turbo fan is arranged at the gas outlet, and the turbo fan extracts the gas in the heating cavity when rotating. The heated gas in the heating cavity flows out from the gas outlet and is blown to the surroundings along the circumference of the turbo fan under the action of the turbo fan.

[0019] Furthermore, the partition assembly includes a heating plate and a perforated plate that are sequentially distributed and fixedly connected in the vertical direction. Through holes that are coaxially arranged and have the same size are formed on the heating plate and the perforated plate to form an air inlet hole and an air outlet hole.

[0020] Add a heating plate to perform secondary heating on the gas about to enter the process chamber. The heating plate is arranged at a position closer to the process chamber, which can compensate for the heat loss caused during gas transmission and enable the heat of the gas directly entering the process chamber to meet the temperature requirements.

[0021] Furthermore, the reflux mechanism further includes a horn-shaped flow guide cover. The flow guide cover is located on the side of the turbine fan away from the heating housing. The flow guide cover includes a flow guide opening, and the flow guide opening faces the partition assembly in the vertical direction.

[0022] Set a flow guide cover to guide the heated gas blown out by the turbine fan towards the space between the heating housing and the partition assembly, prevent the gas blown out by the turbine fan from spreading everywhere, and play a guiding role for the gas.

[0023] Furthermore, feeding ports and discharging ports are arranged on both sides of the transmission device along its transmission direction. A connecting device is respectively arranged at each of the feeding port and the discharging port. The connecting device includes a feeding mechanism corresponding to the limiting space, and the transmission direction of each feeding mechanism is parallel to the transmission direction of the transmission device;

[0024] When the opening of the limiting space faces the feeding mechanism horizontally, the feeding mechanism transports the battery wafers in the first direction. The transmission device is always in a transmission state during the feeding process of the feeding mechanism, and the feeding mechanism can insert the battery wafers into the corresponding limiting space or take out the battery wafers in the corresponding limiting space during the movement in the corresponding limiting space.

[0025] The connecting device is arranged at the feeding port and the discharging port to realize automatic loading and unloading of the battery wafers. When the opening faces the feeding mechanism horizontally, that is, the limiting space and the feeding mechanism are already aligned, and the limiting space reaches the working range of the feeding mechanism. At this time, the feeding mechanism transports the battery wafers horizontally to realize the switching of the battery wafers between the feeding mechanism and the limiting space. The transmission directions of the feeding mechanism and the transmission device are the same. When the battery wafers are exchanged between the two, the moving direction does not change and the pose remains unchanged, effectively protecting the battery wafers and avoiding the problem of fragmentation of the battery wafers during the exchange. The transmission device is always in a transmission state, solving the situation where the traditional insertion furnace needs to stop the transmission device for loading and unloading materials, accelerating the transmission rate and improving the production efficiency.

[0026] Furthermore, the feeding mechanism includes:

[0027] A conveyor belt, wherein at least one conveyor belt is provided, and the battery sheet is placed on the conveyor belt and moves under the drive of the conveyor belt;

[0028] A docking drive, which is used to drive the conveyor belt to rotate, and the docking drive starts to transfer the battery sheet only when the transfer bracket reaches the feed port or the discharge port;

[0029] A rotating seat, the conveyor belt is rotatably connected to the rotating seat.

[0030] The feeding mechanism transports the battery cells via a conveyor belt, achieving horizontal transportation of the battery cells. The conveyor belt does not need to be reversed and reset, but only needs to be paused and started, saving time.

[0031] Furthermore, the transmission bracket also includes a position sensor that moves synchronously with the transmission bracket, the position sensor is linked to the docking drive component, and the position sensor is used to detect the position of the transmission bracket.

[0032] The position sensor is used to determine whether the transmission bracket has reached the feed port and the discharge port. Only when the transmission bracket reaches the feed port and the discharge port can the docking drive start to work and connect the battery cells.

[0033] Furthermore, the transmission bracket includes a connecting plate, and the connecting plate is provided with at least one pair of limit assemblies symmetrically arranged in the second direction, and each of the limit assemblies includes:

[0034] Fixed seat;

[0035] A frame, the frame is fixed on the fixing seat, the frame is used to limit the side of the battery sheet and for the battery sheet to lean on, the frame includes two connecting rods and an ear support portion, the two connecting rods are arranged at intervals along a first direction, one of the two connecting rods is arranged obliquely, and the other connecting rod is perpendicular to the fixing seat, the support portion is located on the side of the two connecting rods away from the fixing seat and is used to limit the side of the battery sheet;

[0036] A supporting protrusion is fixed on the fixing seat and is located on one side of the frame, and the supporting protrusion is used to support the battery sheet.

[0037] The structure of the transport bracket enables the insertion of the battery cells, and the inserted battery cells can be transported in a vertical and tilted state at a certain angle. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] Figure 1 It is a three-dimensional structural schematic diagram of an embodiment of the utility model;

[0039] Figure 2 It is a cross-sectional view of the drying module along the second direction in the embodiment of the utility model;

[0040] Figure 3 It is a cross-sectional view of the drying module along the first direction in the embodiment of the utility model;

[0041] Figure 4 It is a three-dimensional structural schematic diagram of the reflux mechanism in the embodiment of the utility model;

[0042] Figure 5 This is a schematic diagram of the structure of the reflux mechanism in the embodiment of the utility model;

[0043] Figure 6 It is a side view of the transmission bracket in the embodiment of the utility model;

[0044] Figure 7 A top view of the transmission device in the embodiment of the utility model;

[0045] Figure 8 It is a schematic diagram of the three-dimensional structure of the docking device in the embodiment of the utility model;

[0046] Figure 9 It is a schematic diagram of the three-dimensional structure of the transmission bracket in the embodiment of the utility model.

[0047] In the figure:

[0048] 100, drying module; 200, transmission device; 300, connection device; 400, battery cell; 500, rack;

[0049] 11. Upper die set; 12. Lower die set; 13. Drying chamber; 13a. Circulating air chamber; 13b. Process chamber; 14. Baffle assembly; 141. Air inlet; 142. Air outlet; 14a. Heating plate; 14b. Mesh plate; 15. Heating box; 151. Heating chamber; 1511. Heating element; 152. Gas outlet; 16. Turbofan; 17. Motor; 18. Gas pipeline; 19. Flow guide cover;

[0050] 21. Transmission bracket; 211. Limiting space; 212. Fixing seat; 213. Frame; 2131. Connecting rod; 2132. Ear support; 214. Supporting protrusion; 215. Position sensor; 216. Connecting plate; 22. Chain;

[0051] 31. Feeding mechanism; 311. Conveyor belt; 312. Transmission seat; 313. Transmission rod; 314. Driving pulley; 315. Driven pulley. DETAILED DESCRIPTION

[0052] The preferred embodiments of the present invention are described in detail below in conjunction with the accompanying drawings so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby making a clearer and more definite definition of the protection scope of the present invention.

[0053] See the appendix Figure 1 As shown, a plug-in type drying furnace disclosed by the present utility model includes at least one drying module 100 and a transmission device 200 that penetrates the drying module 100 in the X direction. The transmission device 200 is used to transmit the battery wafers 400 in the X direction.

[0054] A plurality of drying modules 100 are arranged in sequence along the X direction. See the appendix Figure 2 As shown, the drying module includes a lower module 12 and an upper module 11 covering the lower module 12. A drying cavity 13 is defined between the upper module 11 and the lower module 12.

[0055] Two reflux devices are symmetrically distributed up and down in the drying cavity 13, and the battery wafers 400 pass through between the two reflux devices. Each reflux device forms a circulating air flow. The reflux device circulates and heats the gas in the drying cavity 13 and blows the heated gas vertically onto the surface of the battery wafers 400. At this time, the upper reflux device forms an upper circulating air flow, and the heated gas is blown vertically downward to dry the front side of the battery wafers 400. The lower reflux device forms a lower circulating air flow, and the heated gas is blown vertically upward to dry the back side of the battery wafers 400.

[0056] In this embodiment, after the air flow blows onto the battery wafers, it will disperse around to form a dispersed air flow. The reflux device circulates and heats the dispersed air flow in the drying cavity 13 and continues to send it into the drying cavity to heat the battery wafers, forming a stable hot air flow to continuously dry the silicon wafers. The reflux device reduces the leakage of gas in the drying cavity 13 and reduces energy loss. At the same time, the circulating air flow formed by the reflux device can circulate and heat the gas and improve the uniformity of the gas blown onto the battery wafers 400.

[0057] See the appendix Figure 6 and the appendix Figure 9 As shown, the transmission device 200 includes a plurality of transmission brackets 21 that move synchronously. Each transmission bracket 21 includes at least one limiting space 211 with an open end, and only one battery wafer 400 can be placed in each limiting space 211. When the battery wafers 400 move on the transmission brackets 21, they can enter and / or leave the drying furnace. See the appendix Figure 3 As shown, the battery wafers 400 located in the drying cavity 13 are inserted into the limiting space 211 in an inclined state. The battery wafers 400 move in an inclined state. Compared with the vertical placement of the battery wafers 400, the contact area with the gas vertically blown out from the air outlet holes 142 is increased, improving the drying effect. At the same time, compared with the horizontal placement of the battery wafers, on the basis of not affecting the drying quality, the drying output is greatly improved.

[0058] See the appendix Figure 2 and the appendix Figure 3As shown in the figure, each reflux device includes a partition assembly 14. The partition assembly 14 is fixed to the side wall of the drying cavity 13. The partition assembly 14 divides the drying cavity 13 into a circulating air cavity 13a and a process cavity 13b in the vertical direction. The battery cells 400 enter and leave the process cavity 13b in an inclined state and are dried in the process cavity 13b. A reflux mechanism is arranged in the circulating air cavity 13a directly above the partition assembly 14. The reflux mechanism is used to extract the gas in the process cavity 13b from the air inlet holes, heat it, and then blow the heated gas to the surface of the battery cells 400 in the vertical direction through the air outlet. The reflux mechanism includes a heating box body 15 and a turbo fan 16.

[0059] The battery cells 400 in the process cavity 13b move along the first direction (X direction), and the X direction is also the length direction of the drying cavity 13. A plurality of air inlet holes 141 are arranged on both sides of the partition assembly 14 in the second direction (Y direction). A plurality of air outlet holes 142 are arranged in an array between the air inlet holes 141 on both sides. The heating box body 15 is fixed between the partition assembly 14 and the turbo fan 16. There are gaps between the heating box body 15 and the side wall of the circulating air cavity 13a and the partition assembly 14. The heating box body 15 forms a heating cavity 151 capable of heating gas. The heating cavity 151 is directly connected to the heating cavity 151 through a gas pipeline 18 corresponding to the air inlet holes 141. The gas heated in the heating cavity 151 is scattered around by the turbo fan 16 and evenly blown out through the gaps from the air outlet holes 142.

[0060] In this embodiment, after the air flow vertically upward or downward through the air outlet holes 142 contacts the battery cells, heat conduction is formed, so that the temperature of the battery cells rises. After the air flow contacts the battery cells, it dissipates. The temperature of the dissipated air flow drops, and the descending gas returns to the circulating air cavity through a plurality of air inlet holes 141 arranged on both sides in the second direction, so that the temperature on one side of the furnace body close to the second direction side wall is lower than the temperature of the central chamber, reducing the influence of high temperature on the furnace body shell. At the same time, due to the continuous heating of the reflux device, the heat absorbed by the battery cells can be continuously compensated, so that the process cavity can maintain a stable specific heating temperature for a long time without being affected by the entry and exit of the battery cells into and out of the cavity.

[0061] In this implementation, because the partition assembly 14 is connected to the side wall of the drying cavity 13, the gas exchange between the circulating air cavity 13a and the process cavity 13b can only be carried out through the air inlet holes 141 and air outlet holes 142 on the partition assembly 14. The air inlet holes 141 are arranged on both sides in the Y direction, that is, on both sides of the width direction of the drying cavity 13. Since there are no battery cells 400 directly below these two sides, it will not affect the drying of the battery cells 400.

[0062] See the appendix Figure 2As shown, the arrow direction in the figure shows the direction of gas flow in the process chamber 13b towards the inside of the heating chamber 151. The gas in the process chamber 13b enters from the air inlet and enters the heating chamber 151 through the dedicated gas pipeline 18. Since the heating box 15 does not cover the entire circulating air chamber 13a, after the gas is heated in the heating chamber 151, it can be blown to the spacing (that is, the circulating air chamber 13a outside the heating box 15) by the turbine fan 16, and finally evenly blown out through the air outlet holes 142. Attached Figure 3 The arrow direction in it shows the direction of gas flow in the heating chamber 151 towards the process chamber 13b. At this time, each reflux device forms a gas circulation in which the process chamber 13b returns from the Y direction to both sides to the heating chamber 151 and then evenly returns to the process chamber 13b from the middle.

[0063] In one embodiment, refer to the attached Figure 3 and the attached Figure 5 As shown, a gas outlet 152 is provided on the side of the heating box 15 away from the partition assembly 14, and the turbine fan 16 is arranged at the gas outlet 152. The turbine fan 16 can rotate under the drive of the motor 17. When rotating, the turbine fan 16 provides power for the flow of gas. The turbine fan 16 extracts the gas in the heating chamber 151 from the gas outlet 152 and then blows out the gas outward along the circumference of the turbine fan 16. The motor 17 is fixed outside the drying module 100 and is exposed to the external air, which is convenient for the heat dissipation of the motor 17 and improves the service life of the motor 17.

[0064] In one embodiment, the gas outlet 152 is located at the middle position on the side of the heating box 15 away from the partition assembly 14. At this time, it can ensure that the gas in the heating chamber 151 is evenly extracted and evenly blown into the spacing.

[0065] In one embodiment, the gas pipeline 18 is fixed between the partition assembly 14 and the heating box 15, that is, both ends of the gas pipeline 18 are fixedly connected to the partition assembly 14 and the heating box 15 respectively. The gas pipeline 18 forms a gas channel connecting the air outlet holes 142 and the heating chamber 151, and all the air outlet holes 142 on the same side are directly connected to the heating chamber 151 through an air outlet pipeline.

[0066] In one embodiment, the air inlet holes 141 on the same side can of course also be connected to the heating chamber 151 through a plurality of gas pipelines 18. As long as it is ensured that each air inlet hole 141 can be connected to the heating chamber 151 through the gas pipeline 18.

[0067] The heating box body 15 is located inside the circulating air cavity 13a. In one embodiment, the two ends of the heating box body 15 in the Y direction are fixed to the side walls of the circulating air cavity 13a, and the two ends in the X direction do not abut against the side walls of the circulating air cavity 13a. That is, there is a spacing between the two ends of the heating box body 15 in the X direction and the side walls of the circulating air cavity 13a. Refer to the appendix Figure 5 As shown, at this time, the length of the heating box body 15 in the X direction is less than the length of the partition assembly 14 in the X direction, which is convenient for the gas blown out by the turbine fan 16 to flow at the spacing and enter the air outlet holes.

[0068] In one embodiment, refer to the appendix Figure 4 As shown, the air outlet holes are circular holes, and the air inlet holes are strip-shaped structures. Since the number of air inlet holes is relatively small, in order to ensure that the gas can pass through quickly, the area of the air inlet holes is increased to increase the gas flow rate.

[0069] A heating element 1511 is arranged inside the heating cavity 151. In one embodiment, the heating element 1511 is a heating wire fixed inside the heating cavity 151. When the heating wire is energized, it can heat the gas inside it. The heating wire is connected to the controller, and the controller can control the power of the heating wire.

[0070] In one embodiment, a temperature sensor is arranged inside the process cavity 13b. The temperature sensor is used to collect the temperature of the process cavity 13b in real time, and the temperature sensor is communicatively connected to the controller. When the temperature sensor detects that the temperature inside the process cavity 13b is high, the power of the heating wire can be reduced through the controller; when the temperature sensor detects that the temperature inside the process cavity 13b is low, the power of the heating wire can be increased through the controller.

[0071] In one embodiment, refer to the appendix Figure 4 As shown, the partition assembly 14 includes a heating plate 14a and a mesh plate 14b that are sequentially distributed and fixedly connected in the vertical direction. Through holes that are coaxially arranged and have the same size are opened on the heating plate 14a and the mesh plate 14b to form air inlet holes and air outlet holes. The heating plate 14a is internally provided with a heating wire, which can heat the passing gas.

[0072] In this embodiment, an additional heating plate 14a is added to perform secondary heating on the gas that is about to be blown into the process cavity 13b from the air outlet 142, ensuring the temperature stability inside the process cavity 13b. In this implementation, the heating plate 14a and the mesh plate 14b coincide in the Z direction, and the heating plate 14a is fixed on the side of the mesh plate 14b close to the process cavity 13b. The heated gas is blown into the process cavity 13b through the partition assembly 14. By setting the heating plate 14a closer to the process cavity 13b, the heat loss caused during gas transmission can be compensated, so that the heat of the gas directly entering the process cavity 13b meets the temperature requirements.

[0073] Of course, in one embodiment, the partition assembly 14 may also include only the perforated plate 14b. In this case, only the heating cavity 151 heats the gas therein.

[0074] In one embodiment, the partition assembly 14 may also include only the heating plate 14a. In this case, on the one hand, the heating plate 14a serves to conduct the gas, and on the other hand, it serves to heat the gas.

[0075] In one embodiment, the perforated plate 14b is made of a heat-conducting material. In this case, the heating plate 14a can also heat the perforated plate 14b, and the two together heat the gas flowing through.

[0076] In one embodiment, see the attached Figure 2 and the attached Figure 3 As shown, the reflux mechanism further includes a flow guide cover 19. The flow guide cover 19 is fixed in the circulating air cavity 13a and is located on the side of the turbine fan 16 away from the heating housing. The flow guide cover 19 is fixed to the top or bottom of the drying cavity 13. The flow guide cover 19 includes a flow guide opening, and the flow guide opening faces the partition assembly 14 in the vertical direction (Z direction).

[0077] In this embodiment, one flow guide cover 19 is provided to guide the heated gas blown out by the turbine fan 16 towards the space between the heating housing and the partition assembly 14, preventing the gas blown out by the turbine fan 16 from spreading everywhere and playing a guiding role for the gas.

[0078] In one embodiment, the shape of the flow guide cover 19 is trumpet-shaped. The large-opening end is the flow guide opening, and the end faces the partition assembly 14. The small-opening end is fixedly connected to the top or bottom of the drying cavity 13.

[0079] In one embodiment, the upper module 11 and the lower module 12 are hinged and can be buckled with each other to form an integral body. Heat insulation cotton is also provided in the drying cavity 13. The heat insulation cotton is fixed to the shells of the upper module 11 and the lower module 12, and the heat insulation cotton plays a heat insulation role for the drying cavity 13.

[0080] In one embodiment, the reflux devices of each drying module 100 are controlled separately, that is, separate control of the temperatures of different process chambers 13b is achieved.

[0081] In one embodiment, the drying module further includes an air outlet communicated with the drying cavity 13, and a valve is provided on the air outlet. When the temperature in the drying cavity 13 is too high, the overheated gas can be discharged from the air outlet.

[0082] In one embodiment, see the attached Figure 6As shown, when the battery cell 400 is tilted and inserted in the limiting space 211, the tilt angle should not be too large. In the transmission direction, the projections of two adjacent battery cells 400 on the same horizontal plane will not overlap, so that the two adjacent battery cells 400 will not interfere with each other. That is, although the battery cell 400 is tilted, there is a certain distance in the transmission direction (X direction) from the high end of a battery cell 400 located at the rear of the transmission direction to the low end of the adjacent battery cell 400 located at the front of the transmission direction.

[0083] See attached Figure 9 As shown, the transmission bracket 21 includes a connecting plate 216, on which at least one pair of limiting components is arranged, and the pair of limiting components are arranged at intervals in the Y direction, and each limiting component includes a fixing seat 212, a frame 213 and a supporting protrusion 214. The frames 213 are respectively fixed on the corresponding fixing seats 212, and are used to limit the side of the battery cell and for the battery cell to lean on. The ends of the two frames 213 away from the connecting plate 216 form an opening for the battery cell 400 to be inserted. The supporting protrusion 214 is fixed to the fixing seat 212 and is located on one side of the frame 213. The supporting protrusion 214 is used to carry the battery cell 400. A limiting space 211 is formed between the supporting protrusion 214 of the pair of limiting components and the frame 213.

[0084] See attached Figure 9 and attached Figure 6 As shown, the frame 213 includes two connecting rods 2131 and an ear support portion 2132. The two connecting rods 2131 are arranged at intervals along the transmission direction (X direction). One of the two connecting rods 2131 is arranged tilted, and the other connecting rod 2131 is perpendicular to the fixing seat 212. The tilted connecting rod 2131 is tilted toward the other connecting rod 2131 along the width of the connecting plate 216 from the side away from the connecting plate 216 to the side close to the connecting plate 216, and the battery cell 400 leans on the tilted connecting rod 2131. The tilted connecting rod 2131 is located behind the vertically arranged connecting rod 2131 in the transmission direction. The ear support portion 2132 is located on the side of the two connecting rods 2131 away from the supporting protrusion 214 and defines an opening groove with an opening toward the supporting protrusion 214. The ear support portion 2132 is used to limit the side of the battery cell.

[0085] In this embodiment, see the attached Figure 9 and attached Figure 2 As shown, a transmission bracket 21 includes two limiting spaces 211, and the two limiting spaces 211 are spaced apart along the Y direction. At this time, the air inlet 141 is located on both sides of the two limiting spaces 211 along the Y direction, and the air outlet is located above the two limiting spaces 211, ensuring that the battery cell 400 inserted in the limiting space 211 can be blown for drying.

[0086] See attached Figure 7As shown, the transmission device 200 further includes two synchronously rotating chains 22. Both of the two chains 22 are in a closed-loop structure, and the transmission bracket 21 is fixed between the two chains 22. The two chains 22 rotate synchronously under the drive of the transmission driving member, and then drive all the transmission brackets 21 to rotate synchronously.

[0087] Refer to the appendix Figure 7 and the appendix Figure 1 As shown, on both sides of the transmission device 200 along its transmission direction, there are a feeding port and a discharging port. A connecting device 300 is respectively arranged at the feeding port and the discharging port. The connecting device 300 is used for conveying the battery cells 400, and the transmission direction of the connecting device 300 is parallel to the transmission direction of the transmission device 200.

[0088] The connecting device 300 located at the feeding port is used for conveying the battery cells 400 onto the transmission device 200, and the connecting device 300 located at the discharging port is used for taking out the battery cells 400 on the transmission device 200 and continuing to convey them. The transmission directions of both the connecting device 300 and the transmission device 200 are in the X direction, and their transmission directions are parallel to each other to realize the horizontal insertion and horizontal departure of the battery cells 400. During this process, the pose of the battery cells 400 will not change.

[0089] Refer to the appendix Figure 8 As shown, the connecting device 300 includes a feeding mechanism 31 corresponding to the limiting space 211. Each feeding mechanism 31 can convey the battery cells 400 in the X direction. When the opening of the limiting space 211 faces the feeding mechanism 31 horizontally, the feeding mechanism 31 conveys the battery cells 400 in the X direction to insert the battery cells 400 into the corresponding limiting space 211, or take out the battery cells 400 in the corresponding limiting space 211. When the connecting device 300 makes a connection, the extending direction of the limiting space 211 and the transmission direction of the feeding mechanism 31 are the same, both in the X direction. When the battery cells 400 are exchanged between the two, the moving direction will not change and the pose remains unchanged, effectively protecting the battery cells 400 and avoiding the problem of fragmentation of the battery cells 400 during the exchange.

[0090] In one embodiment, refer to the appendix Figure 9 As shown, each transmission bracket 21 further includes a position sensor 215 that moves synchronously with it. The position sensor 215 can be sensed by the detection device to obtain the position of the transmission bracket 21 in real time. The detection device is located near the discharging port and the feeding port and can sense the transmission bracket 21 whose opening of the limiting space 211 faces the feeding mechanism 31 horizontally, that is, the transmission bracket 21 that moves into the working range of the feeding mechanism 31. When the transmission bracket 21 moves into the working range of the feeding mechanism 31, at this time, the opening of the limiting space 211 faces the feeding mechanism 31, and the transmission bracket 21 at this position can be detected by the detection device.

[0091] In one embodiment, the transmission drive is always in a working state during the process of loading and unloading the battery cell 400, that is, the transmission device 200 is always transmitting the battery cell 400 during the process of loading and unloading the battery cell 400, and the detection device and the feeding mechanism 31 are linked. When the detection device detects the position sensor 215, the feeding mechanism 31 starts to work and exchanges the battery cell 400 with the limit space 211. Because the limit space 211 has a certain space, the process of the limit space 211 entering and leaving the working range of the feeding mechanism 31 requires a certain amount of time. The feeding mechanism 31 completes the insertion or removal of the battery cell 400 within this time without stopping the transmission device 200. This solves the problem that the transmission device 200 needs to stop to collect and release materials during transmission in the traditional insertion furnace, speeds up the transmission rate, and improves production efficiency.

[0092] Each feeding mechanism 31 further includes a product detection member, which is used to detect the position of the battery cell 400 on the feeding mechanism 31. The feeding mechanism 31 also includes a docking drive member, and the product detection member and the docking drive member are linked. When the product detection member detects a battery cell 400, there are already battery cells 400 to be transported on the feeding mechanism 31. At this time, the docking drive member drives the battery cell 400 thereon to move so as to insert into or leave the limiting space 211.

[0093] Both chains 22 are closed loop structures, and the travel path of the chain 22 includes an upper horizontal section located above, a lower horizontal section located below, and a transition section located between the upper horizontal section and the lower horizontal section. The upper horizontal section extends along the X direction and passes through the drying module 100. When the transmission bracket 21 moves in the upper horizontal section, the limit assembly moves vertically, and the opening of the limit space 211 is upward, and at this time, the battery cell 400 is tilted and leans on the limit assembly.

[0094] When the transmission bracket 21 is traveling in the transition section, the direction of the limit assembly will change. As shown in the accompanying drawings, the limit assembly will experience three states in the transition section: a downward tilt state, a horizontal state, and an upward tilt state. The limit assembly directly reaches the horizontal section after passing through the upward tilt state, or first reaches the upward tilt state after passing through the horizontal section. The opening of the upper limit space 211 of the transmission bracket 21 will be in the horizontal direction in the transition section, so the docking device 300 is located on one side of the transition section and is located at a position where the limit assembly can be in a horizontal state.

[0095] In one embodiment, see the attached Figure 8As shown, each feeding mechanism 31 includes two synchronously rotating conveyor belts 311, and the battery cell 400 can be placed horizontally on the conveyor belts 311 and moved under the drive of the conveyor belts 311. Each conveyor belt 311 is a closed loop structure, wound around a driving pulley 314 and a driven pulley 315. One conveyor belt 311 corresponds to one transmission seat 312, and the driving pulley 314 and the driven pulley 315 are rotatably connected to the rotating seat.

[0096] In one embodiment, all the driving pulleys 314 are sleeved on a coaxially arranged transmission rod 313, the driving pulleys 314 and the transmission rod 313 rotate synchronously, the transmission rod 313 is connected to the docking drive member, and rotates along the axis under the drive of the docking drive member. At this time, all the conveyor belts 311 of the docking device 300 can be driven to move synchronously through a docking drive member.

[0097] In one embodiment, the lower horizontal section passes through a heat preservation module, the heat preservation module comprises a first module and a second module, and the second module covers the opening of the first module. The first module and the second module define a heat preservation cavity, and heat preservation cotton is arranged on the side wall of the heat preservation cavity. The lower horizontal section only passes through the heat preservation cavity along its X direction.

[0098] In this embodiment, an insulation module is added to insulate the lower horizontal section to reduce the heat dissipation of the lower horizontal section, so that the transmission bracket 21 returned to the drying chamber 13 still has a certain amount of heat, which greatly reduces heat dissipation and saves energy.

[0099] The drying module 100 and the heat preservation module are both fixed on the same frame 500 .

[0100] The drying furnace in this embodiment has the docking device 300 at the feed port and the discharge port for loading and unloading the battery cells 400. The transmission direction of the docking device 300 and the transmission direction of the transmission device 200 are both horizontal, and the transmission directions of the two are parallel to achieve horizontal insertion and horizontal departure of the battery cells 400. It is ensured that the battery cells 400 are kept in a horizontal position when entering and leaving the limited space 211, and the position of the battery cells 400 will not change between the docking device 300 and the transmission device 200, thereby avoiding the problem of fragmentation of the battery cells 400 due to the change of position. Moreover, the battery cells 400 enter the drying module 100 in an inclined state, which occupies a small area relative to the battery cells 400 entering the drying module 100 in a horizontal state, and the drying module 100 can dry more battery cells 400. The reflux device of the drying module 100 can form circulating wind in the drying chamber 13 to improve the drying efficiency.

[0101] When the drying oven is working, the chain 22 moves under the drive of the transmission drive. When the detection device senses the position sensor 215 on the transmission bracket 21, it means that the transmission bracket 21 has reached the position of the loading port or the discharging port. At this time, the opening of the upper limit space 211 on the transmission bracket 21 is horizontally facing the feeding mechanism 31. At the same time, when the product detection part on the docking device 300 detects the battery cell 400, it means that there is a battery cell 400 waiting to be transmitted on the docking device 300. The product detection part sends a working command to the docking drive, and the feeding mechanism 31 starts to move the battery cell 400 on it along the X direction. During the movement process, the feeding mechanism 31 of one docking device 300 inserts the battery cell 400 into the corresponding limit space 211, and during the movement process, the feeding mechanism 31 of another docking device 300 moves the battery cell 400 in the limit space 211 toward the side away from the limit space 211 to leave the limit space 211. After completing one loading and unloading, the docking drive stops. During this process, the transmission drive is always working.

[0102] At the same time, the battery cell 400 in the drying module 100 moves in an inclined state, and during the movement, the drying module 100 dries the battery cell 400. The gas in the process chamber 13b enters from the air inlet and enters the heating chamber 151 through a special gas pipe 18. After the gas is heated by the heating chamber 151, it can be blown away by the turbofan 16. Under the guidance of the guide cover 19, the gas blown out by the turbofan 16 will not diffuse upward, but can only move toward the partition assembly 14, and blown out evenly through the air outlet 142 to form a cycle. The reflux devices located above and below the drying chamber 13 respectively blow the gas to the top and bottom of the battery cell 400 passing through it, and quickly dry the battery cell 400.

[0103] The above implementation modes are only for illustrating the technical concept and features of the utility model, and their purpose is to allow people familiar with this technology to understand the content of the utility model and implement it. It cannot be used to limit the protection scope of the utility model. Any equivalent changes or modifications made according to the spirit of the utility model should be included in the protection scope of the utility model.

[0104] The above implementation modes are only for illustrating the technical concept and features of the utility model, and their purpose is to allow people familiar with this technology to understand the content of the utility model and implement it. It cannot be used to limit the protection scope of the utility model. Any equivalent changes or modifications made according to the spirit of the utility model should be included in the protection scope of the utility model.

Claims

1. A sheet-insertion drying oven, characterized in that: include: A drying module, wherein at least one drying module is provided along the first direction, wherein the drying module comprises a lower module and an upper module, wherein a drying cavity is defined between the upper module and the lower module, wherein two reflux devices symmetrically distributed up and down are provided in the drying cavity, wherein each reflux device circulates and heats the gas in the drying cavity and blows the heated gas to the battery surface in a vertical direction; A transmission device, which passes through the drying module along a first direction and is used to transmit battery cells. The transmission device includes a plurality of synchronously moving transmission brackets, each of which includes at least one limiting space with an opening at one end, and only one battery cell can be placed in each limiting space. The battery cell located in the drying chamber is inserted into the limiting space in an inclined state and moves along the first direction.

2. The insert type drying oven according to claim 1, characterized in that: Each of the reflux devices comprises: A partition assembly, wherein the partition assembly is fixed to the side wall of the drying chamber, the partition assembly divides the drying chamber into a circulating air chamber and a process chamber in the vertical direction, and the partition assembly is provided with a plurality of air inlet holes on both sides of the second direction, and a plurality of air outlet holes are distributed in an array between the air inlet holes on both sides; The reflux mechanism is located in the circulating air chamber and is used to extract the gas in the process chamber from the air inlet and heat it, and then blow the heated gas to the surface of the battery cell in a vertical direction through the air outlet.

3. The insert type drying oven according to claim 2, characterized in that: The reflux mechanism comprises: A heating box, wherein a distance is left between the heating box and the side wall and the partition assembly of the circulating air chamber, and the heating box forms a heating cavity capable of heating the gas; A gas pipeline, wherein the gas pipeline is directly connected to the heating cavity and the air inlet; The turbofan is used to blow the gas heated by the heating chamber to all directions. The gas blown by the turbofan passes through the gap and enters the process chamber vertically downward from the air outlet.

4. The insert type drying oven according to claim 3, characterized in that: The heating box is provided with a gas outlet on a side away from the partition assembly, and the turbofan is arranged at the gas outlet. When the turbofan rotates, it extracts gas in the heating cavity from the gas outlet.

5. The insert type drying oven according to claim 2, characterized in that: The partition assembly includes a heating plate and a mesh plate which are sequentially distributed and fixedly connected in the vertical direction, and the heating plate and the mesh plate are provided with through holes which are coaxially arranged and have the same size to form air inlets and air outlets.

6. The insert type drying oven according to any one of claims 2 to 5, characterized in that: The return flow mechanism further comprises a trumpet-shaped air deflector, which is located on a side of the turbofan away from the heating shell. The air deflector comprises an air guide port, which faces the partition assembly in a vertical direction.

7. The insert type drying oven according to any one of claims 1 to 5, characterized in that: The insert-type drying furnace also includes two docking devices, the transmission device is provided with a feed port and a discharge port on both sides along the transmission direction thereof, the two docking devices are respectively arranged at the feed port and the discharge port, the docking device includes a feeding mechanism corresponding to the limited space, and the transmission direction of each feeding mechanism is parallel to the transmission direction of the transmission device; When the opening of the limiting space is horizontally facing the feeding mechanism, the feeding mechanism transports the battery cell along a first direction, and the transport device is always in a transport state during the feeding process of the feeding mechanism. The feeding mechanism can insert the battery cell into the corresponding limiting space, or take out the battery cell in the corresponding limiting space during the movement of the corresponding limiting space.

8. The insert type drying oven according to claim 7, characterized in that: The feeding mechanism comprises: A conveyor belt, wherein at least one conveyor belt is provided, and the battery sheet is placed on the conveyor belt and moves under the drive of the conveyor belt; A docking drive, which is used to drive the conveyor belt to rotate, and the docking drive starts to transfer the battery sheet only when the transfer bracket reaches the feed port or the discharge port; A rotating seat, the conveyor belt is rotatably connected to the rotating seat.

9. The insert type drying oven according to claim 8, characterized in that: The transmission bracket also includes a position sensor that moves synchronously with the transmission bracket. The position sensor is linked to the docking drive member, and the position sensor is used to detect the position of the transmission bracket.

10. The insert type drying oven according to claim 6, characterized in that: The transmission bracket includes a connecting plate, and at least one pair of limit assemblies symmetrically arranged in the second direction are arranged on the connecting plate, and each of the limit assemblies includes: Fixed seat; A frame, the frame is fixed on the fixing seat, the frame is used to limit the side of the battery sheet and for the battery sheet to lean on, the frame includes two connecting rods and an ear support portion, the two connecting rods are arranged at intervals along a first direction, one of the two connecting rods is arranged obliquely, and the other connecting rod is perpendicular to the fixing seat, the support portion is located on the side of the two connecting rods away from the fixing seat and is used to limit the side of the battery sheet; A supporting protrusion is fixed on the fixing seat and is located on one side of the frame, and the supporting protrusion is used to support the battery sheet.

Images