Photovoltaic cell printing carbon layer drying equipment

Abstract

The invention provides photovoltaic cell printing carbon layer drying equipment which comprises a roller type conveyor, conveying rollers of the roller type conveyor are located in a lower box body, and a feeding groove and a discharging groove are formed in the two sides of the lower box body respectively; the upper box body is connected to the upper surface of the lower box body; the heater is connected to the interior of the upper box body and divides an inner cavity of the upper box body into a first cavity and a second cavity, and the second cavity is communicated with an inner cavity of the lower box body; the flow guide channel is arranged on the outer side of the heater and is communicated with the second cavity; the inner circulating fan is connected to the inner top surface of the upper box body, the air inlet end of the inner circulating fan is communicated with the flow guide channel, and the air outlet end of the inner circulating fan is communicated with the first cavity; a flow guide opening penetrates through the surface of the bearing frame and communicates with the second cavity and an inner cavity of the lower box body. The flow guide assembly corresponds to the middle through cavity of the bearing frame. According to the scheme, through mutual cooperation and communication of the cavities, the problems that the drying utilization efficiency is low, and the drying effect is not uniform are solved.

Description

Technical Field

[0001] The invention relates to the technical field of photovoltaic cell production, and in particular to a photovoltaic cell printed carbon layer drying device. Background Art

[0002] New energy perovskite photovoltaic cells have the characteristics of low production cost, low pollution, no decay, and good weak light performance. The photoelectric conversion efficiency ranks first among existing photovoltaic cells. It is the most promising new energy battery of the new generation. New energy photovoltaic panels require multi-layer carbon substrate printing during the preparation process. The latter layer of carbon-based printing needs to be carried out after the previously printed carbon-based layer is completely dried. There are special requirements for the drying time of each carbon layer and the drying consistency of the carbon layer. The drying time of a single carbon layer must be completed within 30s, and the surface flatness of the carbon layer after drying is required to be within 0.05mm.

[0003] The principle of traditional thermal radiation drying is based on infrared radiation with a wavelength within a certain range to achieve the purpose of drying. However, for items with high reflectivity of glass materials such as photovoltaic panels, the drying efficiency is low. If the carbon layer drying time is too long, the production time of the single-chip battery of the entire production line will increase, reducing production efficiency and further increasing production costs. In addition, the irradiation direction and area of ​​infrared rays are constant. Insufficient and uneven drying of the carbon layer surface will affect the adhesion of the next carbon-based layer, and then affect the flatness of the entire carbon-based surface, ultimately resulting in low power generation efficiency and service life of the product, and often leading to uneven drying effects. Therefore, there is an urgent need for a photovoltaic cell printed carbon layer drying equipment to solve the problems of low drying efficiency and uneven drying effects. Summary of the invention

[0004] The invention provides a photovoltaic cell printed carbon layer drying device, aiming to solve the problems of low drying efficiency and uneven drying effect.

[0005] In order to solve the above technical problems, the technical solution of the present invention is as follows:

[0006] The present invention provides a photovoltaic cell printed carbon layer drying device, comprising:

[0007] Roller conveyors;

[0008] A lower box body connected to the upper surface of the roller conveyor, the conveying rollers of the roller conveyor are located inside the lower box body, and a feed trough and a discharge trough are respectively arranged on both sides of the lower box body, the feed trough corresponds to the conveying front end of the roller conveyor, and the discharge trough corresponds to the conveying tail end of the roller conveyor;

[0009] An upper box body connected to the upper surface of the lower box body;

[0010] A heater connected to the interior of the upper box, the heater dividing the inner cavity of the upper box into a first cavity and a second cavity from top to bottom, the second cavity being in communication with the inner cavity of the lower box;

[0011] A flow guiding channel is arranged outside the heater, and the flow guiding channel is connected to the second cavity;

[0012] An internal circulation fan connected to the top surface of the upper box body, wherein the air inlet end of the internal circulation fan is connected to the guide channel, and the air outlet end of the internal circulation fan is connected to the first cavity;

[0013] A carrying frame is arranged in the second cavity, a guide port is arranged through the surface of the carrying frame, and the guide port is connected with the second cavity and the inner cavity of the lower box body;

[0014] A flow guide component is used to evenly guide hot air to the interior of the lower box body, and the flow guide component corresponds to the middle through cavity of the bearing frame.

[0015] Optionally, two internal circulation fans are provided, and the two internal circulation fans are respectively located at two diagonal positions of the upper box body;

[0016] There are two guide channels, and the two guide channels correspond to the two internal circulation fans respectively;

[0017] There are two guide ports, and the two guide ports correspond to the two guide channels respectively.

[0018] Optionally, the photovoltaic cell printed carbon layer drying equipment further comprises:

[0019] A first fan, wherein the first fan is connected to the upper surface of the upper box body, and an air inlet end of the first fan is connected to the second cavity;

[0020] A condenser, wherein an inlet end of a condensation tube of the condenser is connected to an outlet end of the first fan;

[0021] A storage tank connected to an outlet end of a condenser pipe of the condenser;

[0022] A second fan, wherein an air inlet end of the second fan is connected to the storage tank, and an air outlet end of the second fan is connected to the first cavity.

[0023] Optionally, the photovoltaic cell printed carbon layer drying equipment further comprises:

[0024] A heat exchanger, wherein the heat exchange tube inlet end of the heat exchanger is connected to the air outlet end of the first fan through a first connecting tube; the heat exchange tube outlet end of the heat exchanger is connected to the condensation tube inlet end of the condenser; and the cold air inlet end of the heat exchanger is connected to the air outlet end of the second fan through a second connecting tube;

[0025] A third fan, wherein the air inlet end of the third fan is connected to the cold air outlet end of the heat exchanger through a third connecting pipe, and the air outlet end of the third fan is connected to the first cavity.

[0026] Optionally, two first fans are provided, and the two first fans are respectively located at two diagonal positions of the upper box body, and the first fans are far away from the internal circulation fan.

[0027] Optionally, the photovoltaic cell printed carbon layer drying equipment further comprises:

[0028] a return flow main connected to the air outlet end of the third fan;

[0029] A reflux branch pipe connected to the reflux main pipe, wherein two reflux branch pipes are provided, and the two reflux branch pipes are communicated with the first cavity.

[0030] Optionally, the photovoltaic cell printed carbon layer drying equipment further comprises:

[0031] A feed sealing box connected to the lower box body, the feed sealing box being in communication with the feed trough;

[0032] A feed inlet is provided through the outside of the feed sealing box, and the feed inlet corresponds to the feed trough;

[0033] A first sealing door rotatably connected to the feed sealing box, wherein the first sealing door corresponds to the feed trough;

[0034] A first cylinder is rotatably connected to the feed sealing box, and an output end of the first cylinder is rotatably connected to the first sealing door. The first sealing door rotates and seals the feed trough under the extension push of the output end of the first cylinder.

[0035] Optionally, the photovoltaic cell printed carbon layer drying equipment further comprises:

[0036] A discharge sealing box connected to the lower box body, the discharge sealing box being in communication with the discharge chute;

[0037] A discharge port is provided through the outside of the discharge sealing box, and the discharge port corresponds to the discharge trough;

[0038] A second sealing door rotatably connected to the discharge sealing box, wherein the second sealing door corresponds to the discharge chute;

[0039] A second cylinder is rotatably connected to the discharge sealing box, and an output end of the second cylinder is rotatably connected to the second sealing door. The second sealing door rotates and seals the discharge trough under the extension push of the output end of the second cylinder.

[0040] Optionally, the flow guide component includes:

[0041] A fixed frame slidably connected to the carrying frame;

[0042] A wind knife is arranged inside the fixed frame, wherein a plurality of wind knives are arranged and the plurality of wind knives are evenly distributed along the conveying direction of the roller conveyor, and adjacent wind knives are provided with spaces for hot air to pass through;

[0043] A driving assembly is connected to the fixed frame, and the fixed frame slides back and forth along the conveying direction of the roller conveyor under the drive of the driving assembly.

[0044] Optionally, the fixing frame includes a first connecting rod, a first bearing plate, a second connecting rod and a second bearing plate which are connected end to end in sequence, and the wind knife is connected between the first bearing plate and the second bearing plate;

[0045] A first front end guide rail and a first rear end guide rail are respectively formed at both ends of the first bearing plate in the length direction, the first front end guide rail and the first rear end guide rail are respectively slidably matched with a first front end fixing seat and a first rear end fixing seat, and the first front end fixing seat and the first rear end fixing seat are both connected to the bearing frame;

[0046] A second front end guide rail and a second rear end guide rail are respectively formed at both ends of the second carrying plate in the length direction, the second front end guide rail and the second rear end guide rail are respectively slidably matched with the second front end fixing seat and the second rear end fixing seat, and the second front end fixing seat and the second rear end fixing seat are both connected to the carrying frame;

[0047] The first connecting rod is connected between the first front guide rail and the second front guide rail;

[0048] The second connecting rod is connected between the first tail end guide rail and the second tail end guide rail;

[0049] The drive assembly comprises:

[0050] a connecting block connected to the first connecting rod;

[0051] A driving motor connected to the carrying frame;

[0052] A first rocker arm connected to an output end of the drive motor;

[0053] A second rocker arm, wherein a first end of the second rocker arm is rotationally connected to the first rocker arm, and a second end of the second rocker arm is rotationally connected to the connecting block.

[0054] The above solution of the present invention includes at least the following beneficial effects:

[0055] The above scheme of the present invention can realize the working process of photovoltaic cells entering from the feed slot and being recovered from the discharge slot through the roller conveyor; the air inside the first cavity is blown to the heater through the internal circulation fan, and the air is heated by the heater to form a hot air flow, and the hot air flow enters the lower box evenly through the second cavity and the guide assembly, and the printed carbon layer of the photovoltaic cell on the roller conveyor is dried by the hot air flow; at the same time, under the suction of the internal circulation fan, the air flow that absorbs the water vapor of the printed carbon layer of the photovoltaic cell re-enters the first cavity through the guide port, the second cavity and the guide channel, so as to realize the circulation of the hot air flow inside the upper box; the printed carbon layer of the photovoltaic cell is dried by the internal circulation hot air flow, and the drying is uniform and sufficient, and the drying efficiency is high. Further recover the chemical substances contained in the internal return air, reduce the concentration of chemical substances in the return air, shorten the drying time, and recover and reuse the heat and chemical substances in the return gas. BRIEF DESCRIPTION OF THE DRAWINGS

[0056] Figure 1 It is a front view of the upper box of the present invention;

[0057] Figure 2 is a right side sectional view of the lower box body of the present invention;

[0058] Figure 3 yes Figure 2 A magnified schematic diagram of part A;

[0059] Figure 4 yes Figure 2 A magnified schematic diagram of part B;

[0060] Figure 5 It is a right side view of the present invention;

[0061] Figure 6 is a schematic structural diagram of the flow guide assembly of the present invention;

[0062] Figure 7 yes Figure 6 Enlarged schematic diagram of part C of FIG.

[0063] Description of reference numerals:

[0064] 1. Roller conveyor; 2. Lower box; 21. Feed trough; 22. Discharge trough; 23. Feed sealing box; 231. Feed port; 24. First cylinder; 25. First sealing door; 26. Discharge sealing box; 261. Discharge port; 27. Second cylinder; 28. Second sealing door; 3. Upper box; 31. Carrying frame; 32. Diversion port; 33. Second cavity; 34. Diversion channel; 35. First cavity; 36. Diversion assembly; 361. Drive motor; 362. First carrier plate; 3621. First front end guide rail; 3622. First front end fixed seat; 3623. First tail end guide rail; 3624. First tail end fixed seat; 363. Second connecting rod; 364. Second Carrying plate; 3641, second front end guide rail; 3642, second front end fixing seat; 3643, second tail end guide rail; 3644, second tail end fixing seat; 365, first connecting rod; 366, wind knife; 367, first rocker arm; 368, second rocker arm; 369, connecting block; 37, heater; 38, internal circulation fan; 4, first fan; 41, first connecting pipe; 5, second fan; 51, second connecting pipe; 6, third fan; 61, third connecting pipe; 62, reflux main pipe; 63, reflux branch pipe; 7, condenser; 8, storage tank; 9, heat exchanger; 91, heat exchange tube inlet end; 92, heat exchange tube outlet end; 93, cold air inlet end; 94, cold air outlet end. DETAILED DESCRIPTION

[0065] The exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although the exemplary embodiments of the present disclosure are shown in the accompanying drawings, it should be understood that the present disclosure can be implemented in various forms and should not be limited by the embodiments set forth herein. On the contrary, these embodiments are provided to enable a more thorough understanding of the present disclosure and to fully convey the scope of the present disclosure to those skilled in the art.

[0066] like Figure 1-Figure 7 As shown, an embodiment of the present invention provides a photovoltaic cell printed carbon layer drying device,

[0067] It includes: a roller conveyor 1;

[0068] A lower box body 2 connected to the upper surface of the roller conveyor 1, wherein the conveying rollers of the roller conveyor 1 are located inside the lower box body 2, and a feed trough 21 and a discharge trough 22 are respectively provided on both sides of the lower box body 2, wherein the feed trough 21 corresponds to the conveying front end of the roller conveyor 1, and the discharge trough 22 corresponds to the conveying tail end of the roller conveyor 1;

[0069] An upper box body 3 connected to the upper surface of the lower box body 2;

[0070] A heater 37 connected to the interior of the upper box 3, the heater 37 divides the inner cavity of the upper box 3 into a first cavity 35 and a second cavity 33 from top to bottom, and the second cavity 33 is connected to the inner cavity of the lower box 2;

[0071] A guide channel 34 is disposed outside the heater 37, and the guide channel 34 is connected to the second cavity 33;

[0072] An internal circulation fan 38 connected to the top surface of the upper box body 3, the air inlet end of the internal circulation fan 38 is connected to the guide channel 34, and the air outlet end of the internal circulation fan 38 is connected to the first cavity 35;

[0073] A carrying frame 31 is disposed in the second cavity 33, and a guide port 32 is provided on the surface of the carrying frame 31, and the guide port 32 communicates with the second cavity 33 and the inner cavity of the lower box 2;

[0074] The guide component 36 is used to uniformly guide the hot air to the interior of the lower box body 2 , and the guide component 36 corresponds to the middle through cavity of the carrying frame 31 .

[0075] In this embodiment, the roller conveyor 1 can realize the working process of photovoltaic cells entering from the feed trough 21 and being recovered from the discharge trough 22;

[0076] The heater 37 inside the upper box 3 uses conventional high-temperature resistance wire to generate heat to provide the heat required for drying. The principle of resistance wire heating is the thermal effect of electric current, that is, when electric current passes through the resistor, the current consumes electric energy and generates heat, and the resistance wire can quickly convert electric energy into thermal energy; at the same time, the installation and maintenance of the resistance wire heating equipment are relatively simple and convenient, which reduces the overall use cost of the user. In addition, the coiling method of the resistance wire can be flexibly changed according to the actual application to realize the structure of opening holes and slots;

[0077] The internal circulation fan 38 works to blow the air in the first cavity 35 to the heater 37, and the air is heated by the heater 37 to form a hot air flow. The hot air flow passes through the second cavity 35 and the guide assembly 36 to evenly enter the lower box 2, and the printed carbon layer of the photovoltaic cell on the roller conveyor 1 is dried by the hot air flow; at the same time, under the suction of the internal circulation fan 38, the air flow that absorbs the water vapor of the printed carbon layer of the photovoltaic cell re-enters the first cavity 35 through the guide port 32, the second cavity 33 and the guide channel 34, so as to realize the circulation of the hot air flow inside the upper box 3; the printed carbon layer of the photovoltaic cell is dried by the internal circulating hot air flow, and the drying is uniform and sufficient with high drying efficiency.

[0078] like Figure 1As shown, in an optional embodiment of the present invention, two internal circulation fans 38 are provided, and the two internal circulation fans 38 are respectively located at two diagonal positions of the upper box body 3;

[0079] There are two guide channels 34, and the two guide channels 34 correspond to the two internal circulation fans 38 respectively;

[0080] Two guide ports 32 are provided, and the two guide ports 32 correspond to the two guide channels 34 respectively.

[0081] In this embodiment, by arranging two internal circulation fans 38 at two diagonal positions of the upper box body 3, a double internal circulation can be formed inside the upper box body 3, thereby further improving the effect of heat convection, thereby further improving the drying uniformity of the printed carbon layer of the photovoltaic cell, and further improving the drying efficiency.

[0082] like Figure 5 As shown, in an optional embodiment of the present invention, the photovoltaic cell printed carbon layer drying device further includes:

[0083] a first fan 4, wherein the first fan 4 is connected to the upper surface of the upper box 3, and an air inlet end of the first fan 4 is connected to the second cavity 33;

[0084] A condenser 7, wherein the inlet end of the condensation pipe of the condenser 7 is connected to the air outlet end of the first fan 4;

[0085] A storage tank 8, wherein the storage tank 8 is connected to an outlet end of a condensation pipe of the condenser 7;

[0086] The second fan 5 , the air inlet end of the second fan 5 is connected to the storage tank 8 , and the air outlet end of the second fan 5 is connected to the first cavity 35 .

[0087] In this embodiment, after the internal circulation drying work, the volatilized chemicals in the drying process will move synchronously with the airflow. If condensation recovery is not performed, it will inevitably lead to the loss of chemicals, thereby increasing the cost. The present invention extracts the gas rich in chemicals through the first fan 4 connected to the upper surface of the upper box 3, extracts the chemicals in the gas through the condenser 7, and stores them in the storage tank 8 for the next use, thereby reducing the loss of energy and effectively saving costs.

[0088] The condenser 7 is a hollow structure inside which a cooling medium such as ice is contained. The condenser tube is made of metal material with excellent thermal conductivity. The condenser tube runs through the condenser 7 to ensure that the gas does not contact the cooling medium during movement in the condenser 7, and only heat exchange occurs without material loss. The chemical substances in the gas undergo an exothermic phase change, and the condensed chemical reagent flows from the outlet end of the condenser tube into the storage tank 8 for storage so that it can be taken out next time.

[0089] The air inlet end of the second fan 5 is connected to the storage tank 8, and the air outlet end of the second fan 5 is connected to the first cavity 35, which constitutes an external circulation process of the air flow, increases the convection effect of the gas, and further improves the work efficiency.

[0090] like Figure 5 As shown, in an optional embodiment of the present invention, the photovoltaic cell printed carbon layer drying device further includes:

[0091] The heat exchanger 9, the heat exchange tube inlet end 91 of the heat exchanger 9 is connected to the air outlet end of the first fan 4 through the first connecting tube 41; the heat exchange tube outlet end 92 of the heat exchanger 9 is connected to the condensation tube inlet end of the condenser 7; the cold air inlet end 93 of the heat exchanger 9 is connected to the air outlet end of the second fan 5 through the second connecting tube 51;

[0092] The third fan 6 , the air inlet end of the third fan 6 is connected to the cold air outlet end 94 of the heat exchanger 9 through a third connecting pipe 61 , and the air outlet end of the third fan 6 is communicated with the first cavity 35 .

[0093] In this embodiment, after the gas undergoes the condensation recovery operation, it loses heat energy while recovering the chemical substances. However, the chemical substances in the gas must be reduced to a specific temperature to achieve the purpose of condensation recovery, and the heat energy reduced in the middle will be lost in vain. Therefore, the heat exchange tube inlet end 91 of the heat exchanger 9 is connected to the outlet end of the first fan 4 through the first connecting pipe 41; the heat exchange tube outlet end 92 of the heat exchanger 9 is connected to the condensation tube inlet end of the condenser 7, aiming to perform a layer of cooling before the gas condensation recovery operation. A heat exchange device is set in the internal cavity structure of the heat exchanger 9, and the heat exchange tube runs through the heat exchanger 9 to ensure that the gas only exchanges heat without generating material loss. When the hot gas passes through the heat exchange tube, due to the temperature difference, the heat of the gas is greater than the heat of the heat exchange device, and the excess heat in the gas will remain in the heat exchange device, which stores heat energy on the one hand and facilitates the next step of condensation recovery on the other hand. When the externally circulated gas enters the heat exchange tube again through the cold air inlet end 93, due to the temperature difference, the heat of the gas is less than the heat of the heat exchange device, and the heat stored in the heat exchange device will be transferred back to the gas, further reducing heat energy loss.

[0094] In an optional embodiment of the present invention, two first fans 4 are provided, and the two first fans 4 are respectively located at two diagonal positions of the upper box body 3 , and the first fans 4 are far away from the internal circulation fan 38 .

[0095] In this embodiment, two first fans 4 are provided, which increases the wind force sucked in and accelerates the flow of gas. The two fans are arranged diagonally to increase the movement range of the gas in the cavity, and can more fully absorb the gas in the second cavity 33 to enhance the effect of heat convection. The first fan 4 is away from the internal circulation fan 38 to avoid interference caused by being too close, thereby improving the reliability of the equipment.

[0096] like Figure 1 As shown, in an optional embodiment of the present invention, the photovoltaic cell printed carbon layer drying device further includes:

[0097] A return flow main pipe 62 connected to the air outlet end of the third fan 6;

[0098] A reflux branch pipe 63 connected to the reflux main pipe 62 is provided with two reflux branch pipes 63 , and the two reflux branch pipes 63 are communicated with the first cavity 35 .

[0099] In this embodiment, two return branch pipes 63 are provided. On the one hand, the cold air of the external circulation can be separately input into the first cavity 35 to make the gas temperature difference distribution more uniform. On the other hand, the two return branch pipes 63 can further enhance the convection effect of the gas.

[0100] like Figure 3 As shown, in an optional embodiment of the present invention, the photovoltaic cell printed carbon layer drying device further includes:

[0101] A feed sealing box 23 connected to the lower box body 2, wherein the feed sealing box 23 is in communication with the feed trough 21;

[0102] A feed port 231 is provided on the outside of the feed sealing box 23, and the feed port 231 corresponds to the feed slot 21;

[0103] A first sealing door 25 rotatably connected to the feed sealing box 23, wherein the first sealing door 25 corresponds to the feed slot 21;

[0104] The output end of the first cylinder 24 is rotatably connected to the first sealing door 25 in the feed sealing box 23 , and the first sealing door 25 rotates and seals the feed trough 21 under the extension push of the output end of the first cylinder 24 .

[0105] In this embodiment, the output end of the first cylinder 24 contracts, driving the first sealing door 25 to rotate away from the feed trough 21; the photovoltaic panel cells are conveniently pushed to the conveying rollers of the roller conveyor 1 through the feed port 231 and the feed trough 21. After the feeding of the photovoltaic panels is completed, the output end of the first cylinder 24 extends, driving the first sealing door 25 to rotate close to the feed trough 21. The feed trough 21 is sealed by the first sealing door 25, which can prevent the hot air flow inside the lower box 2 from being discharged from the feed trough 21, thereby avoiding heat loss and preventing the loss of volatile chemicals during the drying process.

[0106] like Figure 4 As shown, in an optional embodiment of the present invention, the photovoltaic cell printed carbon layer drying device further includes:

[0107] A discharge sealing box 26 connected to the lower box body 2, wherein the discharge sealing box 26 is in communication with the discharge chute 22;

[0108] A discharge port 261 is provided on the outside of the discharge sealing box 26, and the discharge port 261 corresponds to the discharge slot 22;

[0109] A second sealing door 28 is rotatably connected to the discharge sealing box 26, wherein the second sealing door 28 corresponds to the discharge chute 22;

[0110] A second cylinder 27 is rotatably connected to the discharge sealing box 26 , and an output end of the second cylinder 27 is rotatably connected to the second sealing door 28 . The second sealing door 28 rotates and seals the discharge trough 22 under the extension push of the output end of the second cylinder 27 .

[0111] In this embodiment, when the photovoltaic panels are dried, the output end of the second cylinder 27 extends, driving the second sealing door 28 to rotate close to the discharge chute 22. The discharge chute 22 is sealed by the second sealing door 28, which can prevent the hot air flow inside the lower box 2 from being discharged from the feed chute 21, thereby avoiding heat loss and the loss of volatile chemicals during the drying process. After the photovoltaic panels are dried, the output end of the second cylinder 27 contracts, driving the second sealing door 28 to rotate away from the discharge chute 22. Under the conveying action of the roller conveyor 1, the dried photovoltaic panels are discharged through the discharge chute 22 and the discharge port 261 to achieve discharge.

[0112] like Figure 6 As shown, in an optional embodiment of the present invention, the flow guide component 36 includes:

[0113] A fixed frame slidably connected to the carrying frame 31;

[0114] A wind knife 366 is arranged inside the fixed frame, and a plurality of wind knives 366 are arranged, and the plurality of wind knives 366 are evenly distributed along the conveying direction of the roller conveyor 1, and adjacent wind knives 366 are provided with spaces for hot air to pass through;

[0115] A driving assembly is connected to the fixed frame, and the fixed frame slides back and forth along the conveying direction of the roller conveyor 1 under the drive of the driving assembly.

[0116] In this embodiment, when the fixed frame is driven by the driving component to slide back and forth along the conveying direction of the roller conveyor 1, the wind knife 366 disposed inside the fixed frame moves synchronously to achieve uniformity in the spraying of the fluid onto the surface of the carbon-based layer during the drying process, thereby preventing the carbon-based layer from drying unevenly and cracking. Multiple wind knives 366 are evenly distributed along the conveying direction of the roller conveyor 1. On the one hand, the required number of wind knives 366 is reduced, thereby saving costs. On the other hand, the reciprocating motion effectively makes up for the lack of wind power at the intervals, while further accelerating the flow of hot air and further increasing work efficiency.

[0117] like Figure 6 , Figure 7 As shown, in an optional embodiment of the present invention, the fixing frame includes a first connecting rod 365, a first bearing plate 362, a second connecting rod 363 and a second bearing plate 364 which are connected end to end in sequence, and the wind knife 366 is connected between the first bearing plate 362 and the second bearing plate 364;

[0118] The first front end guide rail 3621 and the first rear end guide rail 3623 are respectively formed at both ends of the first carrying plate 362 in the length direction. The first front end guide rail 3621 and the first rear end guide rail 3623 are respectively slidably matched with the first front end fixing seat 3622 and the first rear end fixing seat 3624. The first front end fixing seat 3622 and the first rear end fixing seat 3624 are both connected to the carrying frame 31.

[0119] A second front end guide rail 3641 and a second rear end guide rail 3643 are respectively formed at both ends of the second carrying plate 364 in the length direction. The second front end guide rail 3641 and the second rear end guide rail 3643 are respectively slidably matched with the second front end fixing seat 3642 and the second rear end fixing seat 3644. The second front end fixing seat 3642 and the second rear end fixing seat 3644 are both connected to the carrying frame 31.

[0120] The first connecting rod 365 is connected between the first front end guide rail 3621 and the second front end guide rail 3641;

[0121] The second connecting rod 363 is connected between the first tail end guide rail 3623 and the second tail end guide rail 3643;

[0122] The drive assembly comprises:

[0123] A connecting block 369 connected to the first connecting rod 365;

[0124] A driving motor 361 connected to the carrying frame 31;

[0125] A first rocker arm 367 connected to the output end of the driving motor 361;

[0126] The second rocker arm 368 , wherein the first end of the second rocker arm 368 is rotatably connected to the first rocker arm 367 , and the second end of the second rocker arm 368 is rotatably connected to the connecting block 369 .

[0127] In this embodiment, the driving motor 361 works, and the first connecting rod 365 is pushed and pulled back and forth through the first rocker arm 367, the second rocker arm 368 and the connecting block 369; through the sliding cooperation between the first front end guide rail 3621 and the first front end fixing seat 3622, the sliding cooperation between the first tail end guide rail 3623 and the first tail end fixing seat 3624, the sliding cooperation between the second front end guide rail 3641 and the second front end fixing seat 3642, and the sliding cooperation between the second tail end guide rail 3643 and the second tail end fixing seat 3644, the fixed frame is made to slide back and forth along the conveying direction of the roller conveyor 1;

[0128] The driving motor 361 provides power, and the first end of the second rocker arm 368 is rotationally connected to the first rocker arm 367, and the second end of the second rocker arm 368 is rotationally connected to the connecting block 369, and the connecting block 369 is connected to the first connecting rod 365. The continuous rotational connection provides fault tolerance for the mechanism as a whole and enhances the buffering capacity, thereby increasing the reliability of the movement output to the first supporting plate 362 and the second supporting plate 364, thereby improving the service life of the device.

[0129] The above is a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A photovoltaic cell printed carbon layer drying device, characterized in that: include: Roller conveyor (1); A lower box body (2) connected to the upper surface of the roller conveyor (1), the conveying rollers of the roller conveyor (1) are located inside the lower box body (2), and a feed trough (21) and a discharge trough (22) are respectively arranged on both sides of the lower box body (2), the feed trough (21) corresponds to the conveying front end of the roller conveyor (1), and the discharge trough (22) corresponds to the conveying tail end of the roller conveyor (1); An upper box body (3) connected to the upper surface of the lower box body (2); a heater (37) connected to the interior of the upper box (3), the heater (37) dividing the inner cavity of the upper box (3) into a first cavity (35) and a second cavity (33) from top to bottom, the second cavity (33) being in communication with the inner cavity of the lower box (2); a flow guiding channel (34) disposed outside the heater (37), the flow guiding channel (34) being in communication with the second cavity (33); an internal circulation fan (38) connected to the top surface of the upper box body (3), the air inlet end of the internal circulation fan (38) being connected to the guide channel (34), and the air outlet end of the internal circulation fan (38) being connected to the first cavity (35); A carrying frame (31) is arranged in the second cavity (33), a guide port (32) is provided through the surface of the carrying frame (31), and the guide port (32) communicates with the second cavity (33) and the inner cavity of the lower box (2); A flow guide component (36) is used for uniformly guiding hot air to the interior of the lower box (2); the flow guide component (36) corresponds to the middle through cavity of the carrying frame (31).

2. The photovoltaic cell printed carbon layer drying equipment according to claim 1, characterized in that: Two internal circulation fans (38) are provided, and the two internal circulation fans (38) are respectively located at two diagonal positions of the upper box body (3); Two guide channels (34) are provided, and the two guide channels (34) correspond to the two internal circulation fans (38) respectively; Two flow guide ports (32) are provided, and the two flow guide ports (32) correspond to the two flow guide channels (34) respectively.

3. The photovoltaic cell printed carbon layer drying device according to claim 1, characterized in that: Also includes: a first fan (4), the first fan (4) being connected to the upper surface of the upper box (3), and an air inlet end of the first fan (4) being connected to the second cavity (33); A condenser (7), wherein an inlet end of a condensation pipe of the condenser (7) is connected to an air outlet end of the first fan (4); A storage tank (8), wherein the storage tank (8) is connected to an outlet end of a condensation pipe of the condenser (7); A second fan (5), wherein an air inlet end of the second fan (5) is connected to the storage tank (8), and an air outlet end of the second fan (5) is connected to the first cavity (35).

4. The photovoltaic cell printed carbon layer drying device according to claim 3, characterized in that: Also includes: A heat exchanger (9), wherein the heat exchange tube inlet end (91) of the heat exchanger (9) is connected to the air outlet end of the first fan (4) via a first connecting tube (41); the heat exchange tube outlet end (92) of the heat exchanger (9) is connected to the condensation tube inlet end of the condenser (7); and the cold air inlet end (93) of the heat exchanger (9) is connected to the air outlet end of the second fan (5) via a second connecting tube (51); A third fan (6), wherein the air inlet end of the third fan (6) is connected to the cold air outlet end (94) of the heat exchanger (9) via a third connecting pipe (61), and the air outlet end of the third fan (6) is connected to the first cavity (35).

5. The photovoltaic cell printed carbon layer drying device according to claim 4, characterized in that: Two of the first fans (4) are provided, and the two first fans (4) are respectively located at two diagonal positions of the upper box body (3), and the first fans (4) are far away from the internal circulation fan (38).

6. The photovoltaic cell printed carbon layer drying device according to claim 4, characterized in that: Also includes: a return flow main pipe (62) connected to the air outlet end of the third fan (6); A reflux branch pipe (63) connected to the reflux main pipe (62), wherein two reflux branch pipes (63) are provided, and the two reflux branch pipes (63) are in communication with the first cavity (35).

7. The photovoltaic cell printed carbon layer drying device according to claim 1, characterized in that: Also includes: A feed sealing box (23) connected to the lower box body (2), wherein the feed sealing box (23) is in communication with the feed trough (21); A feed port (231) is provided through the outside of the feed sealing box (23), and the feed port (231) corresponds to the feed trough (21); A first sealing door (25) is rotatably connected to the feed sealing box (23), wherein the first sealing door (25) corresponds to the feed trough (21); A first cylinder (24) is rotatably connected to the feed sealing box (23), and an output end of the first cylinder (24) is rotatably connected to the first sealing door (25). The first sealing door (25) rotates and seals the feed trough (21) under the extension push of the output end of the first cylinder (24).

8. The photovoltaic cell printed carbon layer drying device according to claim 7, characterized in that: Also includes: A discharge sealing box (26) connected to the lower box body (2), wherein the discharge sealing box (26) is in communication with the discharge chute (22); A discharge port (261) is provided through the outside of the discharge sealing box (26), and the discharge port (261) corresponds to the discharge trough (22); A second sealing door (28) is rotatably connected to the discharge sealing box (26), wherein the second sealing door (28) corresponds to the discharge chute (22); A second cylinder (27) is rotatably connected to the discharge sealing box (26), and the output end of the second cylinder (27) is rotatably connected to the second sealing door (28). The second sealing door (28) rotates and seals the discharge trough (22) under the extension push of the output end of the second cylinder (27).

9. The photovoltaic cell printed carbon layer drying device according to claim 1, characterized in that: The flow guide component (36) comprises: A fixed frame slidably connected to the carrying frame (31); a wind knife (366) disposed inside the fixed frame, wherein a plurality of the wind knives (366) are provided, and the plurality of the wind knives (366) are evenly distributed along the conveying direction of the roller conveyor (1), and adjacent wind knives (366) are provided with spaces for hot air to pass through; A driving assembly is connected to the fixed frame, and the fixed frame slides back and forth along the conveying direction of the roller conveyor (1) under the drive of the driving assembly.

10. The photovoltaic cell printed carbon layer drying device according to claim 9, characterized in that: The fixing frame comprises a first connecting rod (365), a first bearing plate (362), a second connecting rod (363) and a second bearing plate (364) which are connected end to end in sequence, and the wind knife (366) is connected between the first bearing plate (362) and the second bearing plate (364); The first supporting plate (362) is formed with a first front end guide rail (3621) and a first rear end guide rail (3623) at both ends in the length direction, the first front end guide rail (3621) and the first rear end guide rail (3623) are respectively slidably matched with the first front end fixing seat (3622) and the first rear end fixing seat (3624), and the first front end fixing seat (3622) and the first rear end fixing seat (3624) are both connected to the supporting frame (31); The second supporting plate (364) is formed with a second front end guide rail (3641) and a second rear end guide rail (3643) at both ends in the length direction, the second front end guide rail (3641) and the second rear end guide rail (3643) are respectively slidably matched with the second front end fixing seat (3642) and the second rear end fixing seat (3644), and the second front end fixing seat (3642) and the second rear end fixing seat (3644) are both connected to the supporting frame (31); The first connecting rod (365) is connected between the first front end guide rail (3621) and the second front end guide rail (3641); The second connecting rod (363) is connected between the first tail end guide rail (3623) and the second tail end guide rail (3643); The drive assembly comprises: a connecting block (369) connected to the first connecting rod (365); A driving motor (361) connected to the carrying frame (31); A first rocker arm (367) connected to the output end of the drive motor (361); A second rocker arm (368), wherein a first end of the second rocker arm (368) is rotatably connected to the first rocker arm (367), and a second end of the second rocker arm (368) is rotatably connected to the connecting block (369).

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