CN212257433U - Solar cell light injection equipment - Google Patents

Solar cell light injection equipment Download PDF

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Publication number
CN212257433U
CN212257433U CN202021376987.4U CN202021376987U CN212257433U CN 212257433 U CN212257433 U CN 212257433U CN 202021376987 U CN202021376987 U CN 202021376987U CN 212257433 U CN212257433 U CN 212257433U
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solar cell
light injection
constant temperature
support
platform
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CN202021376987.4U
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Inventor
张鹤仙
雷小军
吕佳
杜国帅
马红洲
王艳平
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Gsolar Power Co ltd
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Gsolar Power Co ltd
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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

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Abstract

The utility model relates to the field of solar cells, in particular to a solar cell light injection device; the device comprises a rack, wherein an input device is arranged at one end of the rack, an output device is arranged at the other end of the rack, a stepping conveying device for conveying is arranged between the input device and the output device, a constant temperature box body is arranged at the top of the stepping conveying device, and a preheating area, a light injection area and a cooling area are sequentially arranged in the constant temperature box body; the utility model discloses a set up step-by-step transmission device, when solar cell handled in the light injection district, step-by-step conveying mechanism was in the decline, and the steel band is arranged in constant temperature platform stria, not with the last adsorbed solar cell contact of constant temperature platform, can not influence solar cell's heat transfer efficiency in the data send process, guarantees solar cell temperature control.

Description

Solar cell light injection equipment
Technical Field
The utility model relates to a solar cell field, concretely relates to solar cell light injection equipment.
Background
Light Induced Degradation (LID) refers to a power attenuation phenomenon caused in the process of illuminating a solar cell and a solar module, and it is generally considered that the main reason of the Light Induced Degradation of a P-type (boron-doped) solar cell is that under the condition that boron and oxygen must exist in a silicon material at the same time, boron and oxygen form a boron-oxygen (B-O) complex due to illumination or current injection, and the boron-oxygen complex is a metastable state defect and forms a recombination center so as to reduce the lifetime of a minority carrier;
in the prior art, aiming at the cause of the light-induced degradation, a series of solutions are developed in the industry, for example, the oxygen content in a silicon wafer is reduced, gallium is used for replacing part of boron, the boron content is reduced, and the like, so that the light-induced degradation is reduced, but the methods have high cost or have great technical difficulty and cannot realize mass production, wherein the method which has a better effect is a method which can promote the failure of a B-O complex by hydrogen atoms introduced by preparing a dielectric passivation film through light injection or electrical injection;
therefore, the light injection equipment which has high light intensity, controllable temperature, pre-attenuation of illumination on the battery piece and obvious light-induced attenuation resistance is developed.
SUMMERY OF THE UTILITY MODEL
To the problem mentioned in the prior art, the utility model relates to a solar cell's light injection equipment for solar cell resists photoinduced decay obviously, and is compatible good, has simultaneously that the method is simple, and temperature control precision is high, is fit for characteristics such as industrialization is used.
The utility model relates to a solar cell light injection apparatus, including the frame, one end is equipped with input device in its frame, and the other end is equipped with output device, is equipped with the step-by-step conveyer who is used for the conveying between input device and the output device, step-by-step conveyer top is equipped with the thermostated container body, be equipped with preheating zone, light injection zone and cooling space in the thermostated container body in proper order.
Preferably, the stepping conveying device comprises linear guide rails, a jacking guide rail, a first support, a second support, a steel belt, a first servo motor and a second servo motor, wherein a plurality of linear guide rails are arranged on the rack in parallel, the linear guide rails are provided with the first support, and one end of each linear guide rail is also provided with the first servo motor and a ball screw single-shaft manipulator which are used for enabling the first support to move along the linear guide rails; the jacking device is characterized in that a plurality of jacking guide rails are arranged on the first support, a second support is installed on the jacking guide rails, a plurality of groups of steel belts are uniformly arranged on the second support, and a second servo motor and an electric cylinder used for lifting the second support along the jacking guide rails are further arranged at one end of each jacking guide rail.
Preferably, the constant temperature box is internally further provided with a constant temperature platform, the constant temperature platform is arranged between the first support and the second support in height, the constant temperature platform is provided with a plurality of grooves, the size of each groove is matched with that of the steel strip, the constant temperature platform is further provided with a plurality of adsorption holes, and the adsorption holes are connected with a vacuum system arranged outside the constant temperature box through vacuum pipelines.
Preferably, the preheating zone comprises a plurality of electric heating pipes positioned inside the constant temperature platform, and the preheating zone can rapidly heat the solar cell to a preheating temperature of 100-250 ℃.
Preferably, the station in the light injection district can be provided with a plurality ofly, and the light injection district is including accuse temperature wind channel and a plurality of LED light module, the constant temperature platform bottom is located to accuse temperature wind channel, and accuse temperature wind channel includes into wind gap and air outlet, and the department installs first crossflow fan into wind gap, and the air outlet links to each other with a plurality of hot row mouths outside the thermostated container, still is equipped with the fin radiator in the accuse temperature wind channel wherein.
Preferably, the LED light module is arranged at the top of the constant-temperature platform and comprises a frame, an LED chip, a water cooling system and an air cooling system, wherein heat-resistant glass is arranged in the frame, the LED chip is arranged at the top of the heat-resistant glass, and the LED chip is respectively connected with the water cooling system and the air cooling system(ii) a The LED chip is aligned with the solar cell on the constant-temperature platform, and the light intensity range of the LED chip is 10KW/m2～100 KW/m2The light injection time is 10s to 1000 s.
Preferably, the temperature control air duct of the light injection area and the plurality of LED lamplight modules are controlled by an independent control system, and when the light intensity of the LED chip is 60KW/m2The temperature of the solar cell can be controlled between 150 ℃ and 300 ℃.
Preferably, the cooling zone comprises a cooling fan arranged on the constant temperature platform, and the cooling fan is aligned with the constant temperature platform.
Preferably, the input device and the output device both comprise a belt conveyor and a single-shaft manipulator, and the single-shaft manipulator is mounted at the top of the belt conveyor.
Preferably, the top of the input device and the top of the output device are also provided with an LED power supply, and the LED power supply is connected with the LED chip.
Compared with the prior art, the utility model, following technological effect has been gained:
the utility model discloses a set up step-by-step transmission device, when solar cell handled in the light injection zone, step-by-step conveying mechanism was in descending, and the steel band was located constant temperature platform stria, does not contact with the solar cell who adsorbs on the constant temperature platform, can not influence solar cell's heat transfer efficiency in the data send process, guaranteed solar cell temperature control;
the utility model discloses a fin radiator in the high heat capacity constant temperature platform that sets up, the while is supplementary to have guaranteed effectively with the electric heating pipe of independent control the temperature homogeneity of constant temperature platform, solar cell adsorbs on the constant temperature platform completely when carrying out the light injection operation simultaneously, has guaranteed effectively the temperature control precision of solar cell;
the first cross flow fan can provide equal air flow advection and pass through the heat dissipation surface, effectively ensures the heat dissipation consistency of the heat radiator along the air flow direction, and the air flow of the first cross flow fan can be linearly adjusted along with the change of the output light energy of the LED chip, thereby ensuring that the temperature control precision of the solar cell can be effectively ensured under different output light energy working conditions;
the utility model discloses a whole frame-type LED light shines module, through the water cooling system and the air cooling system that set up, the life-span of LED chip in light injection high temperature environment has effectively been guaranteed to two kinds of cooling modes.
Drawings
Fig. 1 is a schematic front structural view of the present invention.
Fig. 2 is a schematic view of the three-dimensional structure of the present invention.
Fig. 3 is a schematic diagram of the step-by-step transmission device and the light injection region of the present invention.
Reference numerals: 1-a frame; 11-a constant temperature box body; 12-heat discharge port; 13-main water inlet line; 14-a main water return line; 15-LED power supply; 2-an input device; 21-a belt conveyor; 22-single axis robot; 3-a preheating zone; 4-a light injection region; 41-constant temperature platform; 42-finned heat sinks; 43-a first crossflow blower; 5-a cooling zone; 51-a cooling fan; 6-an output device; 7-a step-by-step conveyor; 71-a linear guide; 72-a second bracket; 73-a steel belt; 74-first servomotor; 75-ball screw single-shaft manipulator; 76-jacking guide rails; 77-a second servo motor; 78-electric cylinder; 8-LED light module; 81-water cooling plate; 82-LED chips; 83-heat resistant glass; 84-second crossflow blower.
Detailed Description
Examples
The utility model relates to a solar cell light injection equipment, as shown in fig. 1 and fig. 2, including frame 1, one end is equipped with input device 2 on its frame 1, and the other end is equipped with output device 6, is equipped with the step-by-step conveyer 7 that is used for the conveying between input device 2 and the output device 6, step-by-step conveyer 7 top is equipped with constant temperature box 11, be equipped with preheating zone 3, light injection zone 4 and cooling space 5 in the constant temperature box 11 in proper order. The solar cell light injection equipment in the embodiment can process the solar cell with the size of 156mmX156 mm-210 mmX210mm, the heat preservation box body is made of a steel structure framework and a heat preservation material, and the thickness of the heat preservation material is not less than 50 mm.
The stepping conveying device 7 comprises linear guide rails 71, a jacking guide rail 76, a first support, a second support 72, a steel belt 73, a first servo motor 74 and a second servo motor 77, wherein a plurality of linear guide rails 71 are arranged on the rack 1 in parallel, the first support is arranged on each linear guide rail 71, and one end of each linear guide rail 71 is also provided with the first servo motor 74 and a ball screw single-shaft manipulator 7522 which are used for enabling the first support to move along the linear guide rails 71; the first support is provided with a plurality of jacking guide rails 76, the jacking guide rails 76 are provided with a second support 72, the second support 72 is uniformly provided with a plurality of groups of steel belts 73, and one end of each jacking guide rail 76 is also provided with a second servo motor 77 and an electric cylinder 78 which are used for lifting the second support 72 along the jacking guide rails 76. In the embodiment, the conveying period of the stepping conveying device 7 is not more than 2S, the whole operation process is that the second support 72 rises along the jacking guide rail 76, the first support moves forward along the linear guide rail 71, the second support 72 descends along the jacking guide rail 76, and the first support retreats along the linear guide rail 71, the whole operation process forms a shape similar to a rectangle, the number of the steel belts 73 is 12 in the embodiment, the number of the jacking guide rails 76 is 4, and the number of the linear guide rails 71 is 4.
The inside of the thermostat box body 11 is further provided with a thermostatic platform 41, the thermostatic platform 41 is positioned between the first support and the second support 72, the thermostatic platform 41 is provided with a plurality of grooves, the size of each groove is matched with that of the steel strip 73, the thermostatic platform 41 is further provided with a plurality of adsorption holes, and the adsorption holes are connected with a vacuum system arranged outside the thermostat box body 11 through vacuum pipelines. The vacuum system is a common prior art, the vacuum pipeline is made of stainless steel pipes capable of resisting 300 ℃, and the vacuum system can adsorb and position the solar cell through the adsorption holes so as to ensure that the operation is finished smoothly; the number and the size of the grooves are matched with those of the steel strips 73, and the grooves are used for ensuring that the heat transfer efficiency of the steel strips 73 is not influenced during the solar electric operation in the conveying process.
The preheating zone 3 comprises a plurality of electric heating pipes positioned inside the constant temperature platform 41, and the preheating zone 3 can rapidly heat the solar cell to a preheating temperature of 100-250 ℃.
The station in the light injection zone 4 can be provided with a plurality ofly, and light injection zone 4 is including accuse temperature wind channel and a plurality of LED light module 8, the 41 bottoms of constant temperature platform are located to accuse temperature wind channel, and accuse temperature wind channel includes income wind gap and air outlet, and income wind gap department installs first crossflow fan 43, and the air outlet links to each other with a plurality of outer hot row of mouth 12 of thermostated container body 11, still is equipped with fin radiator 42 in the accuse temperature wind channel wherein. In the embodiment, the air inlet and the air outlet are provided with openable air doors, so that the air inlet and the air outlet can be opened to prevent the temperature of the temperature control air duct from being too high, heat is dissipated through the arranged first cross flow fan 43, the fin radiator 42 and the heat exhaust port 12, and the temperature control precision is guaranteed to be +/-1 ℃; the size of the arranged fin radiator 42 is matched with that of the temperature control air duct, the fin direction of the fin radiator extends to the air outlet along the air inlet, and 1-8 stations can be arranged on the station of the light injection area 4 according to actual production.
The LED light module 8 is arranged at the top of the constant temperature platform 41, the LED light module 8 comprises a frame, an LED chip 82, a water cooling system and an air cooling system, heat-resistant glass 83 is arranged in the frame, the LED chip 82 is arranged at the top of the heat-resistant glass 83, and the LED chip 82 is respectively connected with the water cooling system and the air cooling system; the LED chip 82 is aligned with the solar battery on the constant temperature platform 41, and the light intensity range of the LED chip 82 is 10KW/m2～100 KW/m2The light injection time is 10s to 1000 s. Adopt two kinds of water cooling system in this embodiment, the forced air cooling system is controlled the temperature to LED chip 82, water cooling system is by water-cooling plate 81, water-cooling pipeline and temperature sensor constitute, wherein water-cooling plate 81 links to each other with LED chip 82's copper circuit board, and scribble heat conduction silicone grease between the two, water inlet and the return water mouth of water-cooling plate 81 pass through water-cooling pipeline parallel connection and insert main inlet pipe 13 and the main return water pipeline 14 that sets up on the organism, come the cooling to LED chip 82 through continuous endless water, when water cooling system normally worked, the discharge of LED lamp light shines the module is 1m3The temperature of the backwater rises to 5 ℃, and the temperature of the LED chip 82 is saved and rises to 5 ℃; the air cooling system is composed of a second cross flow fan 64 arranged at one end and an air outlet arranged at the other end, and is used for cooling the surface of the LED chip 82, the second cross flow fan 64 is arranged between the heat-resistant glass 83 and the LED chip 82 and used for cooling the LED chip 82, the air cooling system further comprises an LED power supply 15, and the LED power supply 15 is connected with the LED chip 82.
The temperature control air duct of the light injection area 4 and the LED light module 8 are independently controlled by independent control systems respectively, and when the light intensity of the LED chip 82 is 60KW/m2The temperature of the solar cell can be controlled between 150 ℃ and 300 ℃. The light intensity of the LED chip 82 in the embodiment is preferably 60KW/m2And the temperature of the solar cell can be kept between 150 ℃ and 300 ℃ all the time under the action of the arranged temperature control air duct, so that the over-high temperature of the solar cell is prevented.
The cooling zone 5 includes a cooling fan 51 disposed on the thermostatic platform 41, and the cooling fan 51 is disposed in alignment with the thermostatic platform 41. The cooling fan 51 may rapidly cool the solar cell after the light injection process is completed to a room temperature.
The input device 2 and the output device 6 both comprise a belt conveyor 21 and a single-shaft manipulator 22, and the single-shaft manipulator 22 is installed at the top of the belt conveyor 21. The input device 2 in this embodiment is used for arranging the sintered solar cells into a row of a plurality of solar cells by a plurality of belt conveyors, and then sucking the arranged cell group to the stepping conveying device 7 by the single-shaft manipulator 22; after the light injection operation of the output device 6 is completed through the single-shaft manipulator 22, the solar cell is absorbed to the belt conveyor and is conveyed out of the equipment.
And the LED power supply 15 is also arranged at the top of the input device 2 and the output device 6, and the LED power supply 15 is connected with the LED chip 82.
A method of a solar cell light injection device, comprising the steps of:
(1) when the first group of solar cells passes through the input device 2, the first group of solar cells are placed on the steel belt 73 in the stepping conveying device 7;
(2) the second bracket 72 is driven by an electric cylinder 78 and a second servo motor 77 to ascend to the highest position along the jacking guide rail 76, and then the first bracket is driven by a first servo motor 74 to advance along the length direction of the linear guide rail 71;
(3) when the solar battery advances to the preheating zone 3, the second support 72 is controlled to descend along the jacking guide rail 76, so that the steel belt 73 descends into the thin groove on the constant temperature platform 41, meanwhile, the first group of solar batteries on the steel belt 73 falls onto the constant temperature platform 41, and the solar batteries are positioned and preheated through vacuum adsorption through the arranged adsorption holes;
(4) then, the first support and the second support 72 are reset, a second group of solar cells are placed on the steel belt 73 through the input device 2, the steps (2) and (3) are repeated, at the moment, the stepping conveying device 7 jacks up the first group of solar cells, the preheated first group of solar cells are conveyed to the light injection area 4 to carry out light injection work, and the second group of solar cells are simultaneously conveyed to the preheating area 3 by the stepping conveying device 7 to carry out preheating work;
(5) then, the first support and the second support 72 are reset, a third group of solar cells are placed on a steel belt 73 through the input device 2, the steps (2) and (3) are repeated, at the moment, the stepping conveying device 7 jacks the first group of solar cells, the first group of solar cells after light injection is completed are conveyed to the cooling area 5 to be cooled, meanwhile, the second group of solar cells are jacked, the second group of solar cells enter the light injection area 4 from the preheating area 3 to be subjected to light injection operation, and meanwhile, the third group of solar cells are conveyed to the preheating area 3 to be subjected to preheating operation;
(6) then, the first support and the second support 72 are reset, the fourth group of solar cells are placed on a steel belt 73 through the input device 2, the steps (2) and (3) are repeated, at the moment, the stepping conveying device 7 jacks up the first group of solar cells, the cooled first group of solar cells are collected through the output device 6, and the whole light injection operation process of the first group of solar cells is completed; at the same time, the second group of solar cells is jacked up and proceeds … … from the light injection zone 4 to the cooling zone 5.

Claims (10)

1. The solar cell light injection equipment is characterized by comprising a rack, wherein one end of the rack is provided with an input device, the other end of the rack is provided with an output device, a stepping conveying device for conveying is arranged between the input device and the output device, the top of the stepping conveying device is provided with a constant temperature box body, and a preheating area, a light injection area and a cooling area are sequentially arranged in the constant temperature box body.
2. The solar cell light injection device according to claim 1, wherein the stepping conveyor comprises linear guide rails, a jacking guide rail, a first support, a second support, a steel belt, a first servo motor and a second servo motor, wherein a plurality of linear guide rails are arranged on the frame in parallel, the linear guide rails are provided with the first support, and one end of each linear guide rail is further provided with the first servo motor and the ball screw single-shaft manipulator which are used for enabling the first support to move along the linear guide rails; the jacking device is characterized in that a plurality of jacking guide rails are arranged on the first support, a second support is installed on the jacking guide rails, a plurality of groups of steel belts are uniformly arranged on the second support, and a second servo motor and an electric cylinder used for lifting the second support along the jacking guide rails are further arranged at one end of each jacking guide rail.
3. The solar cell light injection device according to claim 2, wherein a constant temperature platform is further disposed in the constant temperature box, the constant temperature platform is located between the first support and the second support, a plurality of slots are formed in the constant temperature platform, the size of each slot is adapted to the size of the steel strip, a plurality of adsorption holes are further disposed in the constant temperature platform, and the adsorption holes are connected to a vacuum system disposed outside the constant temperature box through vacuum pipelines.
4. The solar cell light injection apparatus of claim 3, wherein the pre-heating zone comprises a plurality of electrically heated tubes located within a constant temperature platform, the pre-heating zone rapidly heating the solar cell to a pre-heating temperature, the pre-heating temperature being between 100 ℃ and 250 ℃.
5. The solar cell light injection device according to claim 4, wherein a plurality of stations are arranged in the light injection region, the light injection region comprises a temperature control air duct and a plurality of LED light modules, the temperature control air duct is arranged at the bottom of the constant temperature platform, the temperature control air duct comprises an air inlet and an air outlet, a first cross flow fan is arranged at the air inlet, the air outlet is connected with a plurality of heat discharge ports outside the incubator, and a finned radiator is further arranged in the temperature control air duct.
6. The solar cell light injection apparatus according to claim 5, wherein the LED light module is disposed on the top of the constant temperature platform, and comprises a frame, an LED chip, and a water cooling systemThe LED light source comprises a system and an air cooling system, wherein heat-resistant glass is arranged in a frame, an LED chip is arranged at the top of the heat-resistant glass, and the LED chip is respectively connected with a water cooling system and the air cooling system; the LED chip is aligned with the solar cell on the constant-temperature platform, and the light intensity range of the LED chip is 10KW/m2～100 KW/m2The light injection time is 10s to 1000 s.
7. The solar cell light injection apparatus according to claim 6, wherein the temperature control air duct and the plurality of LED light modules in the light injection region are controlled by separate independent control systems, and when the light intensity of the LED chip is 60KW/m2The temperature of the solar cell can be controlled between 150 ℃ and 300 ℃.
8. The solar cell light injection apparatus of claim 7, wherein the cooling zone comprises a cooling fan disposed on the constant temperature platform, wherein the cooling fan is aligned with the constant temperature platform.
9. The solar cell light injection apparatus of claim 8, wherein the input device and the output device each comprise a belt conveyor and a single-shaft robot, and the single-shaft robot is mounted on top of the belt conveyor.
10. The solar cell light injection apparatus as claimed in claim 9, wherein the input device and the output device are further provided with an LED power source on top, and the LED power source is connected to the LED chip.
CN202021376987.4U 2020-07-14 2020-07-14 Solar cell light injection equipment Active CN212257433U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202021376987.4U CN212257433U (en) 2020-07-14 2020-07-14 Solar cell light injection equipment

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202021376987.4U CN212257433U (en) 2020-07-14 2020-07-14 Solar cell light injection equipment

Publications (1)

Publication Number Publication Date
CN212257433U true CN212257433U (en) 2020-12-29

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN202021376987.4U Active CN212257433U (en) 2020-07-14 2020-07-14 Solar cell light injection equipment

Country Status (1)

Country Link
CN (1) CN212257433U (en)

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