CN216389400U

CN216389400U - Horizontal grid making equipment

Info

Publication number: CN216389400U
Application number: CN202122639699.4U
Authority: CN
Inventors: 杨与胜; 倪鹏玉; 胡连旺; 陈伟文
Original assignee: Goldstone Fujian Energy Co Ltd
Current assignee: Goldstone Fujian Energy Co Ltd
Priority date: 2021-10-29
Filing date: 2021-10-29
Publication date: 2022-04-26
Anticipated expiration: 2031-10-29

Abstract

The utility model relates to a horizontal grid making device, which comprises a machine shell, a groove body, a horizontal conveying mechanism and a spraying mechanism, wherein the groove body extends in the front-back direction and is arranged in the machine shell and used for containing non-electroplating bath solution; the horizontal conveying mechanism is in insulated contact with the battery piece driven by the horizontal conveying mechanism to move in the bath solution; the lateral wall all is equipped with the conveying trompil around the cell body, be equipped with on the casing and carry the opening with the corresponding complex of conveying trompil. The utility model aims to provide a horizontal grid making device which realizes the grid making by chemical deposition in horizontal conveying.

Description

Horizontal grid making equipment

Technical Field

The utility model relates to a horizontal grid making device.

Background

With the enlargement and rapid development of the scale of the photovoltaic industry and the adjustment of energy policy, the cost requirement of the market on the solar cell is more and more strict, and each process is forced to reduce the manufacturing cost of equipment, simplify the production and preparation steps and adopt a more efficient implementation mode. At present, most of solar cells are printed by silver paste, and the silver paste accounts for more than 25% of the total cost of producing the solar crystalline silicon cells. Obviously, the method has great significance for reducing the production cost of the HIT crystalline silicon solar cell by adopting the cheap copper-tin metal to replace silver paste. Therefore, the HIT crystalline silicon solar cell grid line which can replace silver paste and is high in efficiency is researched and developed to overcome the problem that cost is high in the existing silver paste printing and mask deposition equipment, the photoelectric conversion efficiency and the production yield of the HIT crystalline silicon solar cell are improved, the production cost is reduced, and the HIT crystalline silicon solar cell grid line has great significance and application prospect.

Disclosure of Invention

The utility model aims to provide a horizontal grid making device which realizes the grid making by chemical deposition in horizontal conveying.

The purpose of the utility model is realized by the following technical scheme:

a horizontal grid making device comprises a machine shell, a groove body, a horizontal conveying mechanism and a spraying mechanism, wherein the groove body extends in the front-back direction and is arranged in the machine shell and used for containing non-electroplating groove liquid; the horizontal conveying mechanism is in insulated contact with the battery piece driven by the horizontal conveying mechanism to move in the bath solution; the lateral wall all is equipped with the conveying trompil around the cell body, be equipped with on the casing and carry the opening with the corresponding complex of conveying trompil.

Compared with the prior art, the utility model has the advantages that:

(1) under the condition of no external current, the equipment realizes metal deposition through chemical displacement reaction, the safety and the operability are higher, the film thickness uniformity and the adhesive force are better, the internal stress of the grid line is smaller, and the performance of the solar cell is greatly improved.

(2) In the process that the battery piece enters the equipment to carry out corresponding preparation procedures, the risk of impact of the equipment structure does not exist, the battery piece can stably and smoothly pass through the whole groove section, the risk of breaking caused by periodically taking and placing the battery piece is reduced, the breaking rate is reduced, and the production yield is improved.

Drawings

FIG. 1 is a structural isometric view of one embodiment of a horizontal grid making apparatus of the present invention.

Fig. 2 is an isometric view of the internal structure of one embodiment of the horizontal grid making apparatus of the present invention.

Fig. 3 is a top view of the structure of one embodiment of the horizontal gating device of the present invention.

Fig. 4 is a cross-sectional structural view of one embodiment of the horizontal grid forming device of the present invention.

Fig. 5 is a side elevational view of a transfer structure of one embodiment of the horizontal grid making apparatus of the present invention.

Fig. 6 is a front view of an in-slot transfer structure of an embodiment of the horizontal grid making apparatus of the present invention.

Detailed Description

The horizontal conveying mechanism comprises a plurality of upper conveying roller assemblies, a plurality of lower conveying roller assemblies and a conveying driving assembly, wherein the upper conveying roller assemblies are arranged on the middle upper portion of the tank body and are horizontally arranged along the front-back direction, the lower conveying roller assemblies are arranged below the upper conveying roller assemblies and are matched with the upper conveying roller assemblies to be horizontally arranged along the front-back direction, and the conveying driving assembly drives the upper conveying roller assemblies and the lower conveying roller assemblies to rotate and convey. The upper conveying roller assemblies and the lower conveying roller assemblies are distributed in a staggered mode, and the upper conveying roller assemblies are located between the two adjacent lower conveying roller assemblies in vertical projection.

The lower conveying roller assembly comprises a lower roller transmission shaft which is driven by the transmission driving assembly to rotate and has the axial direction vertical to the conveying direction, a plurality of lower limiting rollers which are arranged on the lower roller transmission shaft at intervals and used for separating and conveying the battery pieces which are arranged side by side, and a plurality of lower supporting rollers which are uniformly distributed between the lower limiting rollers and used for supporting and driving the battery pieces.

The lower conveying roller assembly further comprises a plurality of lower roller spacer bushes which are sleeved on the lower roller transmission shaft and used for carrying out axis positioning on the lower limiting roller and the lower supporting roller.

The upper conveying roller assembly comprises an upper roller transmission shaft which is driven by the transmission driving assembly to rotate and has the axial direction vertical to the conveying direction, a plurality of upper limiting rollers which are arranged on the upper roller transmission shaft at intervals and used for separating and conveying the battery pieces which are arranged side by side, and a plurality of upper supporting rollers which are uniformly distributed between the upper limiting rollers and used for positioning and driving the battery pieces.

The upper conveying roller assembly further comprises a plurality of upper roller spacer bushes which are sleeved on the upper roller transmission shaft and used for carrying out axis positioning on the upper limiting roller and the upper supporting roller.

The conveying driving assembly comprises a conveying power unit arranged outside the tank body, an upper force application shaft which is driven by the conveying power unit to rotate and is arranged corresponding to the upper conveying roller assembly to extend along the front-back direction, an upper transmission gear unit which is arranged between the upper conveying roller assembly and the upper force application shaft to be in meshing transmission, a lower force application shaft which is driven by the conveying power unit to rotate and is arranged corresponding to the lower conveying roller assembly to extend along the front-back direction, and a lower transmission gear unit which is arranged between the lower conveying roller assembly and the lower force application shaft to be in meshing transmission.

The spraying mechanism comprises a spraying liquid source assembly for supplying spraying liquid, a plurality of upper support spray pipes which are horizontally distributed above the horizontal conveying mechanism along the front-back direction and have the extending direction vertical to the conveying direction of the horizontal conveying mechanism, upper main spray pipes which are arranged outside the tank body and are connected between the spraying liquid source assembly and each upper support spray pipe, a plurality of lower support spray pipes which are horizontally distributed below the horizontal conveying mechanism along the front-back direction and have the extending direction vertical to the conveying direction of the horizontal conveying mechanism, and lower main spray pipes which are arranged outside the tank body, are communicated with the liquid source unit and are connected between the spraying liquid source assembly and each lower support spray pipe.

And a plurality of nozzles are uniformly distributed on the upper support spray pipe and the lower support spray pipe respectively.

The spraying liquid source assembly comprises a circulating filter unit for filtering and circulating liquid contained in the tank body and a liquid supplementing unit parallel to the circulating filter unit.

The horizontal grid making equipment further comprises an inflating mechanism which is arranged on the lower portion of the groove body and horizontally arranged in the front-back direction.

The inflating mechanism comprises a gas source assembly for supplying gas, a plurality of inflating pipes which are horizontally distributed at the lower part of the tank body along the front-back direction and the extending direction of which is vertical to the conveying direction of the horizontal conveying mechanism, a gas supply main pipe which is arranged outside the tank body and connected between the gas source assembly and each inflating pipe, and a gas valve which is arranged on the gas supply main pipe and used for controlling gas flow.

The horizontal grid making equipment also comprises a waste discharge mechanism; the waste discharge mechanism comprises a waste liquid discharge assembly communicated with the bottom of the groove body and a waste gas discharge assembly with an air suction port arranged on the inner side wall of the upper part of the machine shell.

The liquid stopping mechanism is arranged on the front inner side wall and the rear inner side wall of the groove body respectively and matched with the conveying opening; the liquid blocking mechanism comprises an upper liquid blocking roller wheel assembly and a lower liquid blocking roller wheel assembly which are arranged up and down and between which a battery piece passing gap is reserved; the upper liquid-resisting roller and the lower liquid-resisting roller are driven by a transmission driving component of the horizontal transmission mechanism to rotate oppositely.

The utility model is described in detail below with reference to the drawings and examples of the specification:

fig. 1 to 6 are schematic diagrams illustrating an embodiment of a horizontal gate manufacturing apparatus according to the present invention.

A horizontal grid making device comprises a shell 80, a groove body 10, a horizontal conveying mechanism 20, a spraying mechanism 30, an inflating mechanism 40, a waste discharging mechanism 50, a circulating filtering mechanism 60, a liquid blocking mechanism 70 and the like. After the pretreated multiple rows of HIT crystalline silicon solar cells 00 pass through the liquid blocking mechanism 70 at the inlet end of the tank body 10, the HIT crystalline silicon solar cells move in the tank under the action of the horizontal conveying mechanism 20; chemical liquid medicines with corresponding components are sequentially arranged at each groove section through which the cell passes, corresponding grid manufacturing procedures are carried out under the action of the spraying mechanism 30, the inflating mechanism 40 and the circulating filtering mechanism 50, and then the chemical liquid medicines come out from the conveying open hole 100 through the liquid blocking mechanism 70 at the outlet end of the groove body 10 so as to enter the next procedure, and the preparation of the grid line of the silicon solar cell is realized. The horizontal transmission mechanism 20 is supported at both sides of the tank 10, and it smoothly transmits a plurality of rows of the battery pieces 00 to move forward in the tank 10 with the chemical liquid of the corresponding composition at a certain speed. The horizontal transmission mechanism 20 includes a limit roller 201, a support roller 202, a roller transmission shaft 203, a roller spacer 204, a force-receiving gear 205, a force-applying gear 206, a force-applying shaft 207, and the like. The limiting rollers 201 respectively limit the multiple rows of battery pieces 00 in a certain range in the transverse direction, so that the problem of coating quality caused by overlapping of the pieces is avoided; the supporting rollers 202 are fixed on the transmission shaft 203 and are uniformly distributed at the bottoms of the multiple rows of battery plates 00 through roller spacer bushes 204; the force-bearing gears 205 are fixed at two ends of the roller transmission shaft 203 and are meshed with the force-applying gear 206 to transmit torque; the force application gears 206 are fixed on the force application shaft 207 in a spatial arrangement, and when power is transmitted to the force application shaft 207, the supporting rollers 202 drive the battery pieces to move forwards; it should be noted that the limiting roller 201, the supporting roller 202, the roller spacer 204, the force-receiving gear 205 and the force-applying gear 206 are all made of non-conductive material resistant to acid and alkali corrosion, and the roller transmission shaft 203 and the force-applying shaft 207 are all made of material resistant to acid and alkali corrosion.

The spray mechanism 30 includes a nozzle 301, an upper support nozzle 302, a lower support nozzle 303, an upper main nozzle 304, a lower main nozzle 305, and a ball valve 306. The nozzles 301 are uniformly distributed at proper positions of the upper support spray pipe 301 and the lower support spray pipe 303, and the chemical liquid medicine after circulating filtration is uniformly sprayed to the surface of the battery piece at a certain pressure, so that the chemical liquid medicine on the surface of the battery piece flows, the chemical liquid medicine which is subjected to contact reaction on the surface of the battery piece is continuously replaced, and the reaction efficiency is improved; the plurality of upper nozzles 302 are connected to the upper main nozzles 304, the plurality of lower nozzles 303 are connected to the lower main nozzles 305, and the upper and lower main nozzles are connected to a ball valve 306, a flow meter, and a pressure gauge, respectively, so that the nozzle pressure and flow rate can be controlled, respectively. It should be noted that the top of the housing 80 is provided with a transparent movable window 801 for observation and maintenance of the equipment.

The inflating mechanism 40 includes an air nozzle 401, an inflating pipe 402, an air supply main pipe 403, and an air valve 404. The air nozzles 401 are uniformly distributed and fixed at proper positions of the air blowing pipe 402, fresh air provided by the blower is blown into the chemical liquid medicine at the bottom of the tank body 10 through the air valves 404 and the air feeding main pipe 403 through the air nozzles 401, so that metal ions in the chemical liquid medicine are fully mixed, and the deposition effect is improved;

the waste discharge mechanism 50 includes a waste discharge assembly 501 and an exhaust discharge assembly 502, and the exhaust discharge assembly includes an air suction opening 503 disposed at an upper portion of an inner wall of the housing 80. The waste liquid discharge component 501 is arranged at the bottom of the tank and is butted with plant-side wastewater treatment equipment; the exhaust gas discharge assembly 502 is disposed at the upper end of the outer wall of the housing 80, sucks out the liquid medicine gas through an air suction opening 503 disposed at the upper portion of the inner wall of the housing 80, and is in butt joint with the plant waste gas treatment equipment to ensure a good equipment operation environment.

The circulating filter unit 60 is connected to the spraying mechanism 30 after being circularly filtered by the circulating pump and the filter through the overflow collecting port 601 so as to ensure that the chemical liquid medicine is always in a clean state; meanwhile, when the circulating mechanism works, the uniform chemical liquid medicine which is prepared by stirring and stored in the auxiliary tank can be continuously mixed into the spraying mechanism 30, so that the liquid supplementing function is realized.

The liquid blocking mechanism 70 comprises a liquid blocking roller 701, a roller transmission shaft 702, a roller force bearing gear 703 and a roller force application gear 704. The upper/lower liquid-resistant rollers 701 are fixed on a roller transmission shaft 702, roller force-applying gears 703 are fixed at both ends of the roller transmission shaft 702 and are meshed with the roller force-applying gears 704, and the roller force-applying gears 704 are fixed on the force-applying shaft 207; after the moment is applied to the force application shaft 207, the upper/lower liquid blocking rollers 701 are matched with the side wall of the cell body 10 and rotate in opposite directions under the action of the moment, so that the liquid amount of chemical liquid medicine flowing out of the conveying opening 100 in the cell body is reduced under the liquid blocking effect, and meanwhile, a plurality of rows of battery pieces 00 can smoothly pass through the cell body.

The embodiment is suitable for preparing the grid line of the following cell structure: a conductive metal layer is deposited on the surface of the cell piece, and a grid line pattern mask is formed on the surface of the conductive metal layer. A production line is formed by adopting a plurality of devices in the embodiment, and corresponding chemical liquid medicine is supplied to the devices in a corresponding sequence according to production processes, so that the battery piece can sequentially complete the processes of grid line etching forming, film stripping, chemical tin or copper-tin alloy and the like in the horizontal conveying process.

Claims

1. A horizontal grid making device, comprising: the electroplating bath device comprises a machine shell, a bath body, a horizontal conveying mechanism and a spraying mechanism, wherein the bath body extends in the front-back direction and is arranged in the machine shell and used for containing non-electroplating bath solution; the horizontal conveying mechanism is in insulated contact with the battery piece driven by the horizontal conveying mechanism to move in the bath solution; the lateral wall all is equipped with the conveying trompil around the cell body, be equipped with on the casing and carry the opening with the corresponding complex of conveying trompil.

2. The horizontal grid making apparatus of claim 1, wherein: the horizontal conveying mechanism comprises a plurality of upper conveying roller assemblies, a plurality of lower conveying roller assemblies and a conveying driving assembly, wherein the upper conveying roller assemblies are arranged on the middle upper portion of the tank body and are horizontally arranged along the front-back direction, the lower conveying roller assemblies are arranged below the upper conveying roller assemblies and are matched with the upper conveying roller assemblies to be horizontally arranged along the front-back direction, and the conveying driving assembly drives the upper conveying roller assemblies and the lower conveying roller assemblies to rotate and convey.

3. The horizontal grid making apparatus of claim 2, wherein: the lower conveying roller assembly comprises a lower roller transmission shaft which is driven by the transmission driving assembly to rotate and has the axial direction vertical to the conveying direction, a plurality of lower limiting rollers which are arranged on the lower roller transmission shaft at intervals and used for separating and conveying the battery pieces which are arranged side by side, and a plurality of lower supporting rollers which are uniformly distributed between the lower limiting rollers and used for supporting and driving the battery pieces.

4. The horizontal grid making apparatus of claim 3, wherein: the lower conveying roller assembly further comprises a plurality of lower roller spacer bushes which are sleeved on the lower roller transmission shaft and used for carrying out axis positioning on the lower limiting roller and the lower supporting roller.

5. The horizontal grid making apparatus of claim 2, wherein: the upper conveying roller assemblies and the lower conveying roller assemblies are distributed in a staggered mode, and the upper conveying roller assemblies are located between the two adjacent lower conveying roller assemblies in vertical projection.

6. The horizontal grid making apparatus of claim 2, wherein: the upper conveying roller assembly comprises an upper roller transmission shaft which is driven by the transmission driving assembly to rotate and has the axial direction vertical to the conveying direction, a plurality of upper limiting rollers which are arranged on the upper roller transmission shaft at intervals and used for separating and conveying the battery pieces which are arranged side by side, and a plurality of upper supporting rollers which are uniformly distributed between the upper limiting rollers and used for positioning and driving the battery pieces.

7. The horizontal grid making apparatus of claim 2, wherein: the conveying driving assembly comprises a conveying power unit arranged outside the tank body, an upper force application shaft which is driven by the conveying power unit to rotate and is arranged corresponding to the upper conveying roller assembly to extend along the front-back direction, an upper transmission gear unit which is arranged between the upper conveying roller assembly and the upper force application shaft to be in meshing transmission, a lower force application shaft which is driven by the conveying power unit to rotate and is arranged corresponding to the lower conveying roller assembly to extend along the front-back direction, and a lower transmission gear unit which is arranged between the lower conveying roller assembly and the lower force application shaft to be in meshing transmission.

8. The horizontal grid making apparatus of claim 1, wherein: the spraying mechanism comprises a spraying liquid source assembly for supplying spraying liquid, a plurality of upper support spray pipes which are horizontally distributed above the horizontal conveying mechanism along the front-back direction and have the extending direction vertical to the conveying direction of the horizontal conveying mechanism, upper main spray pipes which are arranged outside the tank body and are connected between the spraying liquid source assembly and each upper support spray pipe, a plurality of lower support spray pipes which are horizontally distributed below the horizontal conveying mechanism along the front-back direction and have the extending direction vertical to the conveying direction of the horizontal conveying mechanism, and lower main spray pipes which are arranged outside the tank body, are communicated with the liquid source unit and are connected between the spraying liquid source assembly and each lower support spray pipe.

9. The horizontal grid making apparatus of claim 8, wherein: the spraying liquid source assembly comprises a circulating filter unit for filtering and circulating liquid contained in the tank body and a liquid supplementing unit parallel to the circulating filter unit.

10. The horizontal grid making apparatus of claim 1, wherein: the inflation mechanism is arranged at the lower part of the groove body and horizontally arranged along the front and back direction.

11. The horizontal grid making apparatus of claim 10, wherein: the inflating mechanism comprises a gas source assembly for supplying gas, a plurality of inflating pipes which are horizontally distributed at the lower part of the tank body along the front-back direction and the extending direction of which is vertical to the conveying direction of the horizontal conveying mechanism, a gas supply main pipe which is arranged outside the tank body and connected between the gas source assembly and each inflating pipe, and a gas valve which is arranged on the gas supply main pipe and used for controlling gas flow.

12. The horizontal grid making apparatus of claim 1, wherein: it also comprises a waste discharge mechanism; the waste discharge mechanism comprises a waste liquid discharge assembly communicated with the bottom of the groove body and a waste gas discharge assembly with an air suction port arranged on the inner side wall of the upper part of the machine shell.

13. The horizontal grid making apparatus of any one of claims 1-12, wherein: the liquid stopping mechanism is arranged on the front inner side wall and the rear inner side wall of the groove body respectively and matched with the conveying opening; the liquid blocking mechanism comprises an upper liquid blocking roller wheel assembly and a lower liquid blocking roller wheel assembly which are arranged up and down and between which a battery piece passing gap is reserved; the upper liquid-resisting roller and the lower liquid-resisting roller are driven to rotate by a conveying driving component of the horizontal conveying mechanism.