CN218867048U

CN218867048U - Processing furnace and solar cell processing system

Info

Publication number: CN218867048U
Application number: CN202223126483.9U
Authority: CN
Inventors: 韩林
Original assignee: Tongwei Solar Anhui Co Ltd
Current assignee: Tongwei Solar Anhui Co Ltd
Priority date: 2022-11-24
Filing date: 2022-11-24
Publication date: 2023-04-14
Anticipated expiration: 2032-11-24

Abstract

The utility model relates to a processing stove and solar cell system of processing, include: the LED furnace body and the curing furnace body are arranged in a split manner, and the LED furnace body is arranged at the downstream of the curing furnace body; and the transition transmission mechanism is arranged between the curing furnace body and the LED furnace body, the transition transmission mechanism comprises a transmission track and a patch machine, the transmission track is connected between a patch outlet of the curing furnace body and a patch inlet of the LED furnace body, and the patch machine is arranged on one side of the transmission track and is used for performing patch operation on the transmission track. When LED light injection gain verification experiments are required to be carried out on the battery pieces, the battery pieces can be directly added onto the transmission track through the piece supplementing machine, the transmission track sends the battery pieces into the LED furnace body to carry out the gain experiments, the battery pieces are not required to be conveyed to the LED furnace body through the curing furnace body, and therefore the phenomenon that a great amount of time is spent for waiting for the cooling of the curing furnace body can be avoided, production line production stop is caused, the productivity is reduced, the safety of the battery pieces is guaranteed, and the efficiency loss of the battery pieces is prevented.

Description

Processing furnace and solar cell processing system

Technical Field

The utility model relates to a battery processing technology field especially relates to a processing stove and solar cell system of processing.

Background

Currently, in the manufacturing process of the battery piece, the battery piece is processed by screen printing and then continuously enters a curing oven and an LED oven for processing. The curing oven is used for solidifying the silver grid lines on the blue film sheet, so that the silver grid lines on the printed finished battery sheet are prevented from falling off; and the LED furnace is used for forming better ohmic contact between the silver grid line and the blue film. The surface of the blue diaphragm is provided with a pyramid structure, so that the silver grid lines and the pyramid are in better ohmic contact, the filling factor FF of the battery piece can be remarkably improved, and the efficiency of the battery piece is improved.

The cell LED gain, namely the light injection gain, refers to the light injection processing of the heterojunction cell by an irradiation light source, the light injection is directly carried out on the heterojunction cell by adopting the irradiation light source, a high light injection amount is provided in a short time, and the light injection amount acting on the N-type heterojunction cell containing the amorphous silicon film layer is improved as far as possible in the shortest time, so that the passivation effect is greatly improved, the H element of the amorphous silicon film layer is activated, the dangling bond in the cell is better absorbed, the compound region is saturated, the minority carrier lifetime is prolonged, and the cell conversion efficiency is improved.

At present, the curing oven and the LED oven are in an integrated structure. Due to the requirement of a gain experiment, experiments are often designed to verify battery pieces with different efficiency gears, for example, whether the gain efficiency of the battery pieces is different after the battery pieces pass through an LED furnace needs to be verified; or the efficiency of the battery piece which is degraded due to long-time placement is recovered after the battery piece passes through the LED furnace again. Before entering the LED furnace, the battery pieces must pass through the curing furnace, and in order to avoid the influence of high temperature on experimental results, the temperature of the curing furnace needs to be reduced for several hours (generally about 3 hours), and then the battery pieces can directly enter the LED furnace after passing through the curing furnace. Therefore, waiting for the temperature reduction of the curing furnace consumes a lot of time, which causes production line stop and serious reduction of productivity, and in addition, the ceramic roller is easy to scratch the surface of the battery plate due to the long-distance transmission of the battery plate through the ceramic roller in the curing furnace, which causes the efficiency loss of the battery plate and affects the product yield.

SUMMERY OF THE UTILITY MODEL

Therefore, a processing furnace and a solar cell processing system are needed to be provided, and the problems of capacity reduction and cell efficiency loss in the prior art are solved.

In one aspect, the present application provides a process furnace comprising:

a curing furnace body;

the LED furnace body is arranged separately from the curing furnace body, and the LED furnace body is arranged at the downstream of the curing furnace body; and

the transition transmission mechanism is arranged between the curing furnace body and the LED furnace body and comprises a transmission track and a patch machine, the transmission track is connected between a patch outlet of the curing furnace body and a patch inlet of the LED furnace body, and the patch machine is arranged on one side of the transmission track and used for performing patch operation on the transmission track.

In the processing furnace of the scheme, the traditional design of the curing furnace and the LED furnace which are of an integrated structure is improved into the design that the curing furnace body and the LED furnace body are arranged in a split mode, and the transition transmission mechanism is arranged between the curing furnace body and the LED furnace body; when the LED light injection gain verification experiment needs to be carried out on the battery piece, the battery piece can be directly added onto the transmission track through the piece supplementing machine, the battery piece is sent into the LED furnace body through the transmission track to carry out the gain experiment, and the battery piece does not need to be sent to the LED furnace body through the curing furnace body, so that the phenomenon that a large amount of time is spent for waiting for the cooling of the curing furnace body, the production line stops production, and the productivity is reduced can be avoided; in addition, the battery piece does not need to be conveyed through the ceramic roller of the curing furnace body in a long distance, so that the surface of the battery piece is prevented from being scratched by the ceramic roller, the safety of the battery piece is ensured, and the efficiency loss of the battery piece is prevented.

The technical solution of the present application is further described below:

in one embodiment, the patch machine comprises a patch actuator and a patch box, wherein the working stroke of the patch actuator covers the conveying track, and the patch actuator can pick up a battery piece from the patch box and transfer the battery piece to the conveying track.

In one embodiment, the processing furnace further comprises a sheet conveying manipulator, the conveying track comprises a plurality of single-row tracks which are arranged side by side along a conveying direction perpendicular to the battery sheets, the patch executing mechanism can transfer the battery sheets in the patch material boxes to two outermost rows of the single-row tracks, and the sheet conveying manipulator transfers the battery sheets in the outermost single-row tracks to at least one middle row of the single-row tracks.

In one embodiment, the patch magazine comprises a slide rail and a magazine body, the slide rail is vertically arranged on one side of the transmission rail, and the magazine body is slidably arranged on the slide rail to be close to or far away from the transmission rail under the push-pull force.

In one embodiment, the processing furnace further comprises a rail positioning assembly for guiding the sheet conveying robot to transfer the battery sheets to a designated row of the single-row rails.

In one embodiment, the rail positioning assembly includes a first position sensor and a plurality of second position sensors, the first position sensor is disposed on the sheet handling robot, the second position sensors are disposed on the single-row rails in a one-to-one correspondence manner, and the first position sensor can select one of the second position sensors to identify, position and cooperate with any one of the second position sensors.

In one embodiment, the processing furnace further comprises a feeding manipulator, and the feeding manipulator is arranged on the conveying track and is positioned at the sheet outlet of the curing furnace.

In one embodiment, the processing furnace further comprises a storage box, and the storage box is arranged in the working stroke of the discharging manipulator.

In one embodiment, the storage box is connected with a driver, the driver can drive the storage box to move, and the moving direction of the storage box is perpendicular to or obliquely intersected with the moving direction of the blanking manipulator.

In another aspect, the present application also provides a solar cell processing system comprising the processing furnace as described above.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this application, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification.

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly described below, and it is obvious that the drawings in the description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained without creative efforts.

FIG. 1 is a schematic view of a furnace according to one embodiment of the present disclosure;

fig. 2 is a schematic structural diagram of the transition transmission mechanism.

Description of the reference numerals:

10. a curing furnace body; 20. an LED furnace body; 30. a transition transmission mechanism; 31. a transfer track; 32. patching machine; 321. a patch actuator; 322. a patch magazine; 40. a feeding manipulator; 50. and a storage box.

Detailed Description

In order to make the above objects, features and advantages of the present invention more comprehensible, embodiments of the present invention are described in detail below with reference to the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. The invention may be embodied in many other forms different from those described herein and similar modifications may be made by those skilled in the art without departing from the spirit and scope of the invention and, therefore, the invention is not to be limited to the specific embodiments disclosed below.

As shown in fig. 1 and 2, a processing furnace according to an embodiment of the present application includes: the curing furnace body 10, the LED furnace body 20 and the transition transmission mechanism 30.

The LED furnace body 20 and the curing furnace body 10 are arranged in a split manner, and the LED furnace body 20 is arranged at the downstream of the curing furnace body 10; transition transmission device 30 sets up between solidification furnace body 10 and LED furnace body 20, and transition transmission device 30 includes transmission track 31 and film patching machine 32, and transmission track 31 links up between the piece outlet of solidification furnace body 10 and the film feeding mouth of LED furnace body 20, and film patching machine 32 sets up in one side of transmission track 31 and is used for carrying out the patch operation to transmission track 31 on.

In summary, the technical solution of the present embodiment has the following advantages: in the processing furnace of the scheme, the traditional design of the curing furnace and the LED furnace which are of an integrated structure is improved into that the curing furnace body 10 and the LED furnace body 20 are arranged in a split manner, and the transition transmission mechanism 30 is arranged between the curing furnace body and the LED furnace body, so that during normal production, the battery pieces flow out after entering the curing furnace for processing and then enter the LED furnace body 20 through the transmission rail 31 to participate in light injection processing; when the LED light injection gain verification experiment needs to be carried out on the battery plate, the battery plate can be directly added onto the transmission rail 31 through the plate supplementing machine 32, the battery plate is sent into the LED furnace body 20 through the transmission rail 31 to carry out the gain experiment, and the battery plate does not need to be sent to the LED furnace body 20 through the curing furnace body 10, so that the phenomenon that a large amount of time is spent for waiting for the cooling of the curing furnace body 10, the production line is stopped, and the productivity is reduced can be avoided; in addition, the battery piece does not need to be conveyed through the ceramic roller of the curing furnace body 10 in a long distance, so that the surface of the battery piece is prevented from being scratched by the ceramic roller, the safety of the battery piece is ensured, and the efficiency loss of the battery piece is prevented.

In this embodiment, the conveying rail 31 may be any one of a belt pulley mechanism, a chain plate conveying mechanism, a conveying roller mechanism, and the like, and may be specifically selected according to actual needs.

The head end of transmission device links up with the end of the ceramic roller in the solidification furnace body 10, and the tail end of transmission device links up with the head end of the transfer roller in the LED furnace body 20 to make the battery piece can be reliable in succession from solidification furnace body 10 through the circulation removal in transmission device to LED furnace body 20.

With continued reference to fig. 2, in some embodiments, the film patching machine 32 includes a patch actuator 321 and a patch magazine 322, the working stroke of the patch actuator 321 covers the conveying track 31, and the patch actuator 321 can pick up the battery pieces from the patch magazine 322 and transfer the battery pieces to the conveying track 31. The patch box 322 is filled with a plurality of battery pieces, thereby ensuring the continuous sheet supply capability. The patch executing mechanism 321 is specifically any one of a mechanical clamping jaw and a suction cup hand, has the functions of taking and placing the battery pieces, and can transfer the battery pieces in the patch box 322 to the transmission rail 31 one by one or at least two at the same time, so as to avoid conveying the battery pieces from the curing oven body 10 to the LED oven body 20.

In order to improve the processing efficiency, a multi-track ceramic roller mechanism, for example, an eight-track ceramic roller, is provided in the curing furnace 10. Accordingly, in some embodiments, the processing furnace further comprises a sheet handling robot, and the conveying rail 31 comprises a plurality of single-row rails arranged side by side in a direction perpendicular to the conveying direction of the battery sheet, for example, the single-row rails are provided in the same eight as the ceramic rollers.

The patch actuator 321 can transfer the battery pieces in the patch magazine 322 to the two outermost single-row rails, and the sheet handling robot can transfer the battery pieces in the outermost single-row rails to at least one middle single-row rail.

The design of the patch executing mechanism 321 only transfers the battery pieces from the patch material box 322 to the two rows of single-row rails on the outermost side, which is beneficial to shortening the reciprocating travel of the patch executing mechanism 321, saving power consumption, simplifying the structure composition, reducing the cost and improving the patch efficiency.

In some embodiments, patch magazine 322 comprises a slide rail vertically disposed on one side of the transfer rail 31 and a magazine body slidably disposed on the slide rail to approach or move away from the transfer rail 31 under a push-pull force. Therefore, the magazine body moves along the slide rail towards the direction of the transmission rail 31 and enters the working stroke range of the patch actuating mechanism 321, so that the patch actuating mechanism 321 is convenient to take the patch. In addition, after this internal battery piece of magazine was got, to the direction pulling magazine body of keeping away from transmission mechanism, conveniently carry out the operation of battery piece patch, guarantee patch magazine 322 secondary feeding ability.

In addition, to ensure that the patch actuator 321 is able to place the battery pieces one by one on all of the singulator tracks, in some embodiments, the processing oven further includes a track positioning assembly for guiding the piece handling robot to transfer the battery pieces to a designated one of the singulator tracks.

Specifically, in the above embodiment, the rail positioning assembly includes a first position sensor and a plurality of second position sensors, the first position sensor is disposed on the sheet handling robot, the second position sensors are disposed on the single-row rail in a one-to-one correspondence, and the first position sensor can be selected to be matched with any one of the second position sensors in an identification and positioning manner.

After the battery piece is placed in the single-row track, the battery piece can form shielding with the first position sensor, and at the moment, even if the second position sensor is close to the first position sensor, the first position sensor cannot acquire a trigger signal. In other words, only the first position sensor on the empty single-file track can trigger the second position sensor to generate a signal, which is the positioning signal of the patch actuator 321. In addition, each first position sensor is numbered and stored in the controller, so that the controller precisely controls the second position sensor to trigger with the first position sensor on the designated, empty row of tracks, so as to ensure that the patch actuator 321 can fill all the rows of tracks with battery pieces one by one.

In other embodiments, the processing furnace further comprises a feeding manipulator 40, and the feeding manipulator 40 is installed on the conveying track and located at the sheet outlet of the curing furnace. The blanking manipulator 40 is convenient for completing blanking operation of the battery pieces processed by the curing furnace body 10. And further, the blanking manipulator 40 has the capability of simultaneously grabbing a plurality of (for example, 4) battery pieces, so as to blank the battery pieces in batch.

Alternatively, the blanking manipulator 40 may adopt any one of a mechanical clamping jaw, a vacuum chuck and the like.

Further, the processing furnace further comprises a storage box 50, and the storage box 50 is arranged in the working stroke of the discharging manipulator 40. Therefore, the battery piece storage box 50 can contain and store the battery pieces released by the discharging manipulator 40, so that the concentrated and ordered storage of the battery pieces is realized, and the subsequent production and use are facilitated. It can be understood that a plurality of storage compartments are arranged in the storage box 50, and one, two or more battery pieces can be placed in each storage compartment.

Furthermore, the magazine 50 is connected to a driver, which can drive the magazine 50 to move, and the moving direction of the magazine 50 is perpendicular to or obliquely intersected with the moving direction of the feeding robot 40. Therefore, the moving direction of the storage box 50 and the moving direction of the discharging manipulator 40 are staggered, so that the normal discharging operation of the discharging manipulator 40 cannot be influenced when the storage box 50 moves. For example, the driver may be, but is not limited to, an air cylinder, an electric push rod, and the like.

In addition, the present application also provides a solar cell processing system, which includes the processing furnace according to any of the above embodiments.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only represent several embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like, indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present invention, unless otherwise explicitly specified or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly, e.g., as being fixedly connected, detachably connected, or integrated; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the present application, unless expressly stated or limited otherwise, the first feature may be directly on or directly under the second feature or indirectly via intermediate members. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. As used herein, the terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like are for purposes of illustration only and do not denote a single embodiment.

Claims

1. A process furnace, comprising:

a curing furnace body (10);

the LED furnace body (20), the LED furnace body (20) and the curing furnace body (10) are arranged in a split manner, and the LED furnace body (20) is arranged at the downstream of the curing furnace body (10); and

transition transmission device (30), transition transmission device (30) set up in solidification furnace body (10) with between LED furnace body (20), transition transmission device (30) are including transmission track (31) and mend mascerating machine (32), transmission track (31) link up in the play piece mouth of solidification furnace body (10) with between the piece inlet of LED furnace body (20), mend mascerating machine (32) set up in one side of transmission track (31) and be used for to carry out the patch operation on transmission track (31).

2. The process oven of claim 1, wherein the patch machine (32) comprises a patch actuator (321) and a patch magazine (322), wherein the working stroke of the patch actuator (321) covers the transport track (31), and wherein the patch actuator (321) is capable of picking up battery sheets from the patch magazine (322) and transferring the battery sheets to the transport track (31).

3. The furnace of claim 2, further comprising a sheet handling robot, wherein the transfer track (31) comprises a plurality of single-row tracks arranged side-by-side in a direction perpendicular to a cell transfer direction, wherein the patch actuator (321) is capable of transferring cells in the patch magazine (322) to two outermost rows of the single-row tracks, and wherein the sheet handling robot transfers cells in the outermost rows of the single-row tracks to at least one middle row of the single-row tracks.

4. The process furnace according to claim 2, wherein the patch magazine (322) comprises a slide rail vertically disposed on one side of the transport rail (31) and a magazine body slidably disposed on the slide rail to approach or depart from the transport rail (31) under a push-pull force.

5. The process furnace of claim 3, further comprising a track positioning assembly for directing the sheet handling robot to transfer a battery sheet into a designated one of the single row of tracks.

6. The processing furnace of claim 5, wherein the track positioning assembly comprises a first position sensor and a plurality of second position sensors, the first position sensor is disposed on the sheet handling robot, the second position sensors are disposed on the single-row track in a one-to-one correspondence, and the first position sensor can be selected to be matched with any one of the second position sensors for identification and positioning.

7. The processing furnace according to claim 1, further comprising a feeding manipulator (40), wherein the feeding manipulator (40) is installed on the conveying track and located at the sheet outlet of the curing furnace.

8. The processing furnace according to claim 7, further comprising a magazine (50), wherein the magazine (50) is disposed within a working stroke of the feeding robot (40).

9. The processing furnace according to claim 8, characterized in that a driver is connected to the magazine (50), the driver can drive the magazine (50) to move, and the moving direction of the magazine (50) and the moving direction of the feeding manipulator (40) are perpendicular or obliquely intersected.

10. A solar cell processing system comprising a process furnace according to any one of claims 1 to 9.