CN211291010U - Solar cell fritting furnace - Google Patents
Solar cell fritting furnace Download PDFInfo
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- CN211291010U CN211291010U CN201922352142.5U CN201922352142U CN211291010U CN 211291010 U CN211291010 U CN 211291010U CN 201922352142 U CN201922352142 U CN 201922352142U CN 211291010 U CN211291010 U CN 211291010U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
Abstract
The utility model discloses a solar cell fritting furnace, include the drying area through transmission device series connection, sintering area and cooling space, drying area and sintering area all include the heating module, the heating module has the heating cavity, the heating cavity includes that a plurality of temperatures can independent control's unit heating cavity, transmission device runs through each unit heating cavity, transmission device includes a plurality of transmission running rollers that set up with rotating and drive transmission running roller pivoted drive arrangement, drive arrangement sets firmly the epaxial action wheel of transmission including rotating, set firmly from the driving wheel on each transmission running roller, drive transmission shaft pivoted motor, establish the drive mechanism between from driving wheel and action wheel. This fritting furnace passes through the transmission running roller and transmits solar cell, and for the transmission mode of transmission network chain, the transmission mode of transmission running roller has improved the stability of transmission, simultaneously, has still avoided transmission network chain shake and contact to the influence of solar cell quality.
Description
Technical Field
The utility model relates to a solar cell produces technical field, concretely relates to solar cell fritting furnace.
Background
In solar cell production, after the solar cell is printed, the solar cell with the paste needs to be sintered through a sintering furnace. The fritting furnace all generally includes drying area, sintering area and cooling space, and solar energy battery transmits through the transmission network chain and passes through drying area, sintering area and cooling space in proper order, and drying area and sintering area all heat through heating the module. The transmission mode of the transmission network chain is easy to shake, so that the problem of contact between the transmission network chain and the solar cell exists, and the shake of the network chain and the contact can affect the quality of the solar cell; moreover, when the solar cell is heated in the drying zone and the sintering zone through the heating module group, the problem of inaccurate temperature control exists.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a problem among the prior art, provide an improved solar cell fritting furnace.
In order to achieve the above purpose, the utility model adopts the technical scheme that:
a solar cell sintering furnace comprises a drying area, a sintering area and a cooling area which are sequentially arranged, wherein the drying area, the sintering area and the cooling area are connected in series through a transmission device, the drying area and the sintering area both comprise heating modules, each heating module comprises a heating cavity, each heating cavity comprises a plurality of unit heating cavities which are arranged in series, the temperature of each unit heating cavity can be independently controlled, the transmission device penetrates through each unit heating cavity, the transmission device comprises a plurality of transmission rollers which are arranged in parallel and used for transmitting solar cells, each transmission roller can be rotationally arranged around the axis of the transmission roller in the same direction, the transmission device further comprises a driving device used for driving the transmission rollers to rotate, and the driving device comprises a transmission shaft which can be rotationally arranged, a driving wheel fixedly arranged on the transmission shaft, a driving wheel fixedly arranged on the driving shaft, a driving wheel fixedly arranged on the transmission shaft, The transmission device comprises driven wheels fixedly arranged at one end parts of the transmission rollers, a motor used for driving the transmission shaft to rotate and a transmission mechanism arranged between the driven wheels and the driving wheel and used for driving the driven wheels to rotate when the driving wheel rotates.
Preferably, the transmission mechanism is a magnetic transmission mechanism, the driving wheel and the driven wheel are magnetic wheels, the driving wheel and the driven wheel are arranged in a one-to-one correspondence manner, each group of driving wheel and driven wheel are arranged in a one-to-one correspondence manner, one part is located in the magnetic force range of the other part, the magnetic pole directions of the driving wheels on the transmission shafts are the same, and the magnetic pole directions of the driven wheels on the transmission rollers are the same.
Preferably, the transmission mechanism is a belt transmission mechanism or a gear transmission mechanism.
Preferably, the same axial position of each transmission roller is provided with a positioning structure for positioning the solar cell, the positioning structure comprises a concave part and positioning parts, the concave part is respectively arranged on each transmission roller, the positioning parts are positioned at two ends of the concave part, the concave part comprises a cylindrical section and a conical section connected with the cylindrical section, the large end of the conical section faces the positioning parts, the end surface of the solar cell is contacted with the outer contour surface of the conical section, or the concave part comprises two cylindrical sections which are sequentially connected, the diameters of the two cylindrical sections are different, so that the concave part is in a stepped shaft form, the large end of the stepped shaft is close to the positioning parts, and the end surface of the solar cell is contacted with the outer contour surface of the large end of the stepped shaft.
Preferably, the transmission device is arranged on the frame, the transmission device further comprises supporting plates which are respectively arranged at two end parts in the length direction of the transmission roller wheel and used for supporting the transmission roller wheel, the supporting plates at two sides can be arranged on the frame in a vertically adjustable position, the transmission device further comprises an adjusting member used for adjusting the position of the supporting plate, the adjusting member comprises a threaded rod and a connecting piece connected with the threaded rod through threads, the connecting piece is fixedly connected with the supporting plate, the threaded rod extends in the vertical direction, the lower end of the threaded rod is abutted to the frame, and the threaded rod can be rotationally arranged relative to the frame.
Preferably, the sintering furnace further comprises a waste discharge device, wherein the waste discharge device comprises a first combustion tower, and the first combustion tower is arranged at the top of the heating module of the drying zone.
Further, the waste discharge device further comprises a second combustion tower which is arranged at the top of the heating module in the sintering zone.
Furthermore, the waste discharge device also comprises a recovery device arranged at the top of the heating module in the sintering area, the recovery device comprises an oil collecting tank and a waste discharge pipe, the oil collecting tank is arranged at the top of the heating module and provided with a hollow cavity, the waste discharge pipe is arranged on the oil collecting tank, and the hollow cavity of the oil collecting tank is respectively communicated with the waste discharge pipe and the heating chamber.
Preferably, the sintering zone and the cooling zone are arranged at intervals, and the sintering furnace further comprises a transition zone arranged between the sintering zone and the cooling zone.
Preferably, the cooling zone includes the cooling module, the cooling module includes the cooling box, sets up hot blast blowpipe apparatus and updraft ventilator on the cooling box, the cooling box has the cooling chamber, transmission device follows pass in the cooling chamber, be provided with air intake and air outlet on the cooling box respectively, the air intake with the air outlet is located transmission device's top and below respectively, hot blast blowpipe apparatus sets up air intake position department, updraft ventilator sets up air outlet position department.
Because of above-mentioned technical scheme's application, compared with the prior art, the utility model have the following advantage: the utility model discloses a solar cell fritting furnace simple structure transmits solar cell through the transmission running roller and passes through drying space, fritting area and the cooling space of fritting furnace in proper order to accomplish technological operation such as drying, sintering and the cooling of solar cell piece, for the transmission mode of transmission network chain, the transmission mode of transmission running roller has improved the stability of transmission, simultaneously, has still avoided transmission network chain shake and the influence of contact to the solar cell quality. And in the drying area and the sintering area of fritting furnace, the heating temperature homoenergetic in the heating cavity of heating module can independent control to can improve the temperature control precision of this heating module, and then promote solar cell's stoving and sintering effect, with the quality that improves solar cell.
Drawings
Fig. 1 is a schematic structural diagram of a solar cell sintering furnace of the present invention (no positioning structure is provided on the transmission roller);
fig. 2 is a schematic structural diagram of a drying zone of the solar cell sintering furnace of the present invention (no positioning structure is provided on the transmission roller);
fig. 3 is a schematic structural diagram of a sintering zone of the solar cell sintering furnace of the present invention (no positioning structure is provided on the transmission roller);
fig. 4 is a schematic structural diagram of a cooling zone of the solar cell sintering furnace of the present invention (no positioning structure is provided on the transmission roller);
fig. 5 is a schematic structural diagram of a transition zone of the solar cell sintering furnace of the present invention (no positioning structure is provided on the transmission roller);
fig. 6 is a schematic structural diagram of a transmission device of the solar cell sintering furnace of the present invention (no positioning structure is provided on the transmission roller);
FIG. 7 is an enlarged view of a portion A of FIG. 6;
fig. 8 is one of the schematic structural diagrams after the positioning structure is arranged on the transmission roller of the solar cell sintering furnace of the present invention;
fig. 9 is a second schematic structural view of the solar cell sintering furnace according to the present invention after the positioning structure is disposed on the transmission roller;
fig. 10 is a schematic structural view of a support plate of a conveying device of a solar cell sintering furnace according to the present invention.
Detailed Description
The technical solution of the present invention will be further explained with reference to the accompanying drawings.
As shown in figure 1, the utility model discloses a solar cell fritting furnace is including drying zone 1, sintering zone 2 and the cooling zone 3 that sets gradually in proper order, and drying zone 1, sintering zone 2 and cooling zone 3 pass through transmission device 4 series connection, and transmission device 4 transmission solar cell passes through drying zone 1, sintering zone 2 and cooling zone 3 in proper order.
As shown in fig. 1-3, the drying zone 1 and the sintering zone 2 both include a heating module, the heating module includes an upper heating module 111/211 and a lower heating module 112/212, the upper heating module 111/211 and the lower heating module 112/212 are buckled with each other, and a heating chamber is formed between the upper heating module 111/211 and the lower heating module 112/212.
This heating module is still including setting up the thermal-insulated component in heating the cavity, and a plurality of unit heating cavity are separated into with heating the cavity to thermal-insulated component, and transmission device 4 runs through each unit heating cavity, and the heating temperature homoenergetic in every unit heating cavity can independent control to can improve this heating module's temperature control precision, and then promote solar cell's stoving and sintering effect, with the quality that improves solar cell.
A plurality of heating elements are arranged in each unit heating cavity and can be independently controlled, so that the independent control of the heating temperature in each unit heating cavity is realized. In this embodiment, the heating element may be one or more of a heating lamp tube, a heating rod and a heating wire.
The sintering furnace also comprises an auxiliary heating device 12 arranged at the top of the heating module of the drying zone 1. The auxiliary heating device 12 has a hollow cavity in which a heating element is also disposed to heat the air flow in the hollow cavity. The hollow cavity of the auxiliary heating device 12 is communicated with the heating cavity of the heating module of the drying area 1, and the blowing device is arranged in the auxiliary heating device 12, so that hot air in the hollow cavity of the auxiliary heating device 12 can be blown into the heating cavity of the heating module of the drying area 1 and flows in the heating cavity, and therefore hot air in the heating cavity is more uniformly distributed, namely, the temperature in the heating cavity is more uniformly distributed.
As shown in fig. 1 and 4, the cooling area 3 includes a cooling module, the cooling module includes a cooling box 31, an air intake device and an air exhaust device, the air intake device and the air exhaust device are disposed on the cooling box 31, the cooling box 31 has a cooling chamber, the transmission device 4 passes through the cooling chamber, the cooling box 31 is provided with an air intake and an air outlet, the air intake and the air outlet are disposed above and below the transmission device 4, the air intake device is disposed at the air intake position, and the air exhaust device is disposed at the air outlet position.
In this embodiment, the air intake device includes a cooling fan 32 disposed at an air inlet, the air inlet of the cooling fan 32 is communicated with the external environment, and the air outlet of the cooling fan 32 faces the cooling chamber. The air extracting device includes an exhaust pipe 331 and an exhaust fan 332, one end portion of the exhaust pipe 331 is connected to the air outlet, and the exhaust fan 332 is disposed at the other end portion of the exhaust pipe 331. In this way, the cooling fan 32 sucks cold air outside the cooling module into the cooling chamber from the air inlet and blows the cold air to the solar cells in the cooling chamber to cool the solar cells; the hot air in the cooling chamber is drawn into the exhaust pipe 331 through the air outlet by the air blower 332 and exhausted to the outside of the cooling module. The cooling fan 32 and the exhaust fan 332 can circulate the airflow inside the cooling chamber, so that the solar cell in the cooling chamber can be cooled rapidly, and the cooling efficiency and the cooling effect of the solar cell are improved.
As shown in fig. 1 and 5, the sintering furnace is arranged with a certain distance between the sintering zone 2 and the cooling zone 3, and the sintering furnace further comprises a transition zone 5 arranged between the sintering zone 2 and the cooling zone 3. Through setting up transition zone 5, can make the solar cell who comes out from sintering zone 2 carry out natural cooling for a certain time earlier and enter into cooling zone 3 again, like this, can avoid solar cell to cause the influence to its quality because of the abrupt temperature drop.
The transition area 5 comprises a transition box body 51, the transmission device 4 passes through the transition box body 51, an air draft device is also arranged on the transition box body 51, one end part of an exhaust pipe 331 of the air draft device is communicated with the inner cavity of the transition box body 51, and an exhaust fan 332 is arranged at the other end part of the exhaust pipe 332. So that the hot air flow of the transition box body 51 can be sucked into the exhaust pipe 331 and discharged to the outside of the transition box body 51 by the suction fan 332.
As shown in fig. 1 to 7, the transmission device 4 is disposed on the frame 8, the transmission device 4 includes a plurality of transmission rollers 41, the transmission rollers 41 are disposed in parallel at intervals, each transmission roller 41 can rotate around its axis in the same direction, the solar cell is disposed on the transmission roller 41, and when the transmission rollers 41 rotate in the same direction, the solar cell is conveyed forward.
The transmission device 4 further includes a driving device for driving each transmission roller 41 to rotate, as shown in fig. 6 and 7, the driving device includes a transmission shaft 42 rotatably disposed on the frame 8, a driving wheel 44 fixedly disposed on the transmission shaft 42, a driven wheel 45 fixedly disposed at an end portion of each transmission roller 41, and a motor 43 for driving the transmission shaft 42 to rotate, the driving device further includes a transmission mechanism disposed between the driven wheel 45 and the driving wheel 44 for driving the driven wheel 45 to rotate when the driving wheel 44 rotates, and the transmission mechanism may be a magnetic transmission mechanism, a belt transmission mechanism, or a gear transmission mechanism.
The embodiment shows a magnetic transmission mechanism, which specifically comprises: the driving wheel 44 and the driven wheel 45 are provided with magnetic force, the driving wheel 44 and the driven wheel 45 are arranged in a one-to-one correspondence manner, one driving wheel 44 and one driven wheel 45 which are arranged in a one-to-one correspondence manner form a group of magnetic transmission mechanisms, one of the two parts in each group of magnetic transmission mechanisms is located within the magnetic force range of the other part, the magnetic pole directions of the driving wheels 44 on the transmission shaft 42 are the same, and the magnetic pole directions of the driven wheels 45 on the transmission roller 41 are the same.
When the motor 43 is started, the motor 43 drives the transmission shaft 42 to rotate, the transmission shaft 42 drives each driving wheel 44 to synchronously rotate, each driven wheel 45 also rotates under the action of magnetic force between the driving wheel 44 and the driven wheel 45, and the driven wheel 45 can drive the transmission roller 41 fixedly connected with the driven wheel to rotate when rotating, so that the transmission of the solar battery is realized.
The belt transmission mechanism and the gear transmission mechanism are commonly used transmission mechanisms in the prior art, and are not described in detail herein.
The same axial position department of every transmission running roller 41 all is provided with the location structure that is used for fixing a position solar cell, through location structure's setting for solar cell can guarantee the straight line transmission in transmission process, has avoided the skew, has improved solar cell's transmission precision.
The positioning structure includes a concave portion 411 provided on each of the conveying rollers 41, respectively, and positioning portions 412 located at both ends of the concave portion 411.
The concave portion 411 includes a cylindrical section 411a and a conical section 411b connected to the cylindrical section 411a, a large end of the conical section 411b faces the positioning portion 412, when the solar cell is transferred, the solar cell is located in the concave portion 411, and an end surface of the solar cell is in contact with an outer contour surface of the conical section 411b, as shown in fig. 8.
Alternatively, the concave portion 411 includes two cylindrical sections connected in series, and the diameters of the two cylindrical sections are different, so that the concave portion 411 is in the form of a stepped shaft having a large end 411c and a small end 411d, the large end 411c is close to the positioning portion 412, when the solar cell is conveyed, the solar cell is located in the concave portion 411, and the end surface of the solar cell is in contact with the outer contour surface of the large end 411c, as shown in fig. 9.
The conveying device 4 further includes support plates 46 respectively disposed at both ends in the longitudinal direction of the conveying roller 41 for supporting the conveying roller 41, and the support plates 46 at both sides are disposed on the frame 8 with positions adjustable up and down. The horizontal degree of the transfer roller 1 can be adjusted by adjusting the up-and-down position of the support plates 46 at both sides, thereby keeping the transfer roller 1 horizontal.
The transmission device 4 further includes an adjusting member for adjusting the position of the supporting plate 46, as shown in fig. 10, the adjusting member includes a threaded rod 471 and a connector 472 connected to the threaded rod 471 through a thread, the connector 472 is fixedly connected to the supporting plate 46, the threaded rod 471 extends in the vertical direction, the lower end of the threaded rod 471 is always abutted to the frame 8, and the threaded rod 471 can rotate relative to the frame 8. When the threaded rod 471 is rotated, the supporting plate 46 can move up and down along the length extension direction of the threaded rod 471, and when the supporting plate 46 moves up and down, the end of the transmission roller 1 is driven to move up and down, so that the horizontal state of the transmission roller 1 is adjusted. The adjusting member is provided with a plurality of groups.
The sintering furnace further comprises a waste discharge device, wherein the waste discharge device comprises a first combustion tower 6, and the first combustion tower 6 is arranged at the top of the heating module of the drying area 1, as shown in figures 1 and 2.
The waste discharge apparatus further comprises a second combustion tower (not shown) disposed at the top of the heating module of the sintering zone 2. The sintering furnace in this embodiment is not necessarily provided with the second combustion tower, and may be set according to the need for waste discharge.
The bottom of the first combustion tower 6 and the bottom of the second combustion tower are both provided with air inlets which are connected with a waste discharge port at the top of the heating module, the first combustion tower 6 and the second combustion tower are both positioned at one end part of the sintering furnace in the sheet feeding direction on the heating module, namely, the waste gas generated in the initial heating stage of the heating module firstly enters the first combustion tower 6 and the second combustion tower to be combusted, because the waste gas generated in the initial heating stage of the heating module contains more granular waste gas, the waste gas can be fully combusted through the first combustion tower 6 and the second combustion tower and then is discharged to the outside, and the environmental pollution can be reduced.
As shown in fig. 1 and 3, the waste discharge device further includes a recovery device 7 disposed on the top of the heating module of the sintering zone 2, the recovery device includes an oil collecting tank 71 and a waste discharge pipe 72, the oil collecting tank 71 is disposed on the top of the heating module 21 and has a hollow cavity, an oil collecting tank for collecting waste oil is disposed in the hollow cavity, the waste discharge pipe 72 is disposed on the oil collecting tank 71, the hollow cavity of the oil collecting tank 71 is respectively communicated with one end portion of the waste discharge pipe 72 and the heating cavity, and the other end portion of the waste discharge pipe 72 is communicated with the external environment.
The above embodiments are only for illustrating the technical concept and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the contents of the present invention and implement the present invention, and the protection scope of the present invention can not be limited thereby, and all equivalent changes or modifications made according to the spirit of the present invention should be covered by the protection scope of the present invention.
Claims (10)
1. A solar cell sintering furnace comprises a drying zone, a sintering zone and a cooling zone which are sequentially arranged, wherein the drying zone, the sintering zone and the cooling zone are connected in series through a transmission device, and the solar cell sintering furnace is characterized in that: the drying area and the sintering area both comprise heating modules, each heating module is provided with a heating cavity, each heating cavity comprises a plurality of unit heating cavities which are arranged in series, the temperature of each unit heating cavity can be controlled independently, each transmission device penetrates through each unit heating cavity, each transmission device comprises a plurality of transmission rollers which are arranged in parallel and used for transmitting solar cells, each transmission roller can be rotationally arranged around the axis of the transmission roller in the same direction, each transmission device further comprises a driving device used for driving the transmission rollers to rotate, each driving device comprises a transmission shaft which can be rotationally arranged, a driving wheel which is fixedly arranged on the transmission shaft, a driven wheel which is fixedly arranged at one end part of each transmission roller, a motor used for driving the transmission shaft to rotate and a transmission device which is arranged between the driven wheel and the driving wheel and drives the driven wheel to rotate when the driving wheel rotates And (4) a mechanism.
2. The solar cell sintering furnace according to claim 1, characterized in that: the transmission mechanism is a magnetic transmission mechanism, the driving wheel and the driven wheel are magnetic wheels, the driving wheel and the driven wheel are arranged in a one-to-one correspondence mode, each group of magnetic wheels is arranged in a one-to-one correspondence mode, one part is located in the magnetic force range of the other part in the driving wheel and located on the transmission shaft, the magnetic pole directions of the driving wheel are the same, and the magnetic pole directions of the driven wheel are the same.
3. The solar cell sintering furnace according to claim 1, characterized in that: the transmission mechanism is a belt transmission mechanism or a gear transmission mechanism.
4. The solar cell sintering furnace according to claim 1, characterized in that: the solar cell positioning device comprises a transmission roller wheel, wherein the transmission roller wheel is provided with a plurality of transmission roller wheels, the transmission roller wheels are arranged on the transmission roller wheel, the transmission roller wheels are arranged on the transmission roller wheels, the transmission roller wheels are arranged on.
5. The solar cell sintering furnace according to claim 1, characterized in that: the transmission device is arranged on the rack, the transmission device further comprises supporting plates which are arranged at two end parts on the length direction of the transmission roller respectively and used for supporting the transmission roller, the supporting plates are arranged on two sides of the rack, the positions of the supporting plates can be adjusted up and down, the transmission device further comprises adjusting members used for adjusting the positions of the supporting plates, each adjusting member comprises a threaded rod and a connecting piece connected with the threaded rod through threads, the connecting pieces are fixedly connected with the supporting plates, the threaded rod extends along the up and down direction, the lower end of the threaded rod is abutted to the rack, and the threaded rod can be arranged relatively to the rack in a rotating mode.
6. The solar cell sintering furnace according to claim 1, characterized in that: the sintering furnace further comprises a waste discharge device, wherein the waste discharge device comprises a first combustion tower, and the first combustion tower is arranged at the top of the heating module in the drying area.
7. The solar cell sintering furnace according to claim 6, wherein: the waste discharge device also comprises a second combustion tower which is arranged at the top of the heating module in the sintering zone.
8. Solar cell sintering furnace according to claim 6 or 7, characterized in that: the waste discharge device also comprises a recovery device arranged at the top of the heating module in the sintering zone, the recovery device comprises an oil collecting tank and a waste discharge pipe, the oil collecting tank is arranged at the top of the heating module and provided with a hollow cavity, the waste discharge pipe is arranged on the oil collecting tank, and the hollow cavity of the oil collecting tank is respectively communicated with the waste discharge pipe and the heating chamber.
9. The solar cell sintering furnace according to claim 1, characterized in that: the sintering zone and the cooling zone are arranged at intervals, and the sintering furnace further comprises a transition zone arranged between the sintering zone and the cooling zone.
10. The solar cell sintering furnace according to claim 1, characterized in that: the cooling zone comprises a cooling module, the cooling module comprises a cooling box body, an air inlet device and an air exhaust device, the air inlet device and the air exhaust device are arranged on the cooling box body, the cooling box body is provided with a cooling cavity, the transmission device penetrates through the cooling cavity, the cooling box body is provided with an air inlet and an air outlet, the air inlet and the air outlet are respectively located above and below the transmission device, the air inlet device is arranged at the position of the air inlet, and the air exhaust device is arranged at the position of the air outlet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922352142.5U CN211291010U (en) | 2019-12-24 | 2019-12-24 | Solar cell fritting furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922352142.5U CN211291010U (en) | 2019-12-24 | 2019-12-24 | Solar cell fritting furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211291010U true CN211291010U (en) | 2020-08-18 |
Family
ID=72012221
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922352142.5U Active CN211291010U (en) | 2019-12-24 | 2019-12-24 | Solar cell fritting furnace |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211291010U (en) |
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2019
- 2019-12-24 CN CN201922352142.5U patent/CN211291010U/en active Active
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