WO2021120495A1 - Solar cell electrical injection device - Google Patents

Solar cell electrical injection device Download PDF

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WO2021120495A1
WO2021120495A1 PCT/CN2020/088273 CN2020088273W WO2021120495A1 WO 2021120495 A1 WO2021120495 A1 WO 2021120495A1 CN 2020088273 W CN2020088273 W CN 2020088273W WO 2021120495 A1 WO2021120495 A1 WO 2021120495A1
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solar cell
cooling
temperature
layer
injection device
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PCT/CN2020/088273
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French (fr)
Chinese (zh)
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张海生
李华超
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苏州巨能图像检测技术有限公司
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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
    • H01L21/67—Apparatus specially adapted for handling semiconductor or electric solid state devices during manufacture or treatment thereof; Apparatus specially adapted for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components ; Apparatus not specifically provided for elsewhere
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L31/00—Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
    • H01L31/04—Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof adapted as photovoltaic [PV] conversion devices
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L31/00—Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
    • H01L31/18—Processes or apparatus specially adapted for the manufacture or treatment of these devices or of parts thereof
    • 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
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/50—Photovoltaic [PV] energy
    • 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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  • the utility model belongs to the technical field of solar cell electricity injection light decay temperature control, and particularly relates to a solar cell electricity injection device.
  • Light-induced attenuation refers to the phenomenon of power attenuation caused by solar cells and components during the process of illumination.
  • Related research results believe that the main reason for the light-induced attenuation of P-type (boron-doped) solar cells is caused by the rapid diffusion of dioxygen atoms to the substituted boron atoms under the action of excess carriers to form a boron-oxygen complex.
  • the anti-light decay effect of electrical injection is better than the anti-light decay effect of light injection. Therefore, the current relatively effective equipment mainly focuses on the electrical injection process.
  • Patent No. 201820671517.7 in the prior art discloses a dual-channel electric injection type anti-light decay furnace. Although it also realizes the electric injection type anti-light decay process of laminated cells, the solar cell In the case of low current, the temperature of the cell in the middle of the stack is low, resulting in poor electrical injection process effect, and reducing the number of stacks will reduce production capacity.
  • a solar cell power injection device which includes an electric injection reaction space formed by an upper electrode, a lower electrode, a surrounding cooling and air blowing device, and an upper and lower layered distribution A number of temperature monitoring devices and controllers;
  • the surrounding cooling air blowing device includes a number of air blowing holes arranged in layers around the electro-injection reaction space and independently controlled, and the controller is electrically connected to the temperature monitoring device .
  • the surrounding cooling air blowing device includes a cooling plate distributed in a rectangular shape, a plurality of gas channels arranged in the cooling plate and arranged in layers up and down, and a gas channel arranged in layers on the inner surface of the cooling plate. Several layers of the blowing holes communicated with the corresponding gas channels.
  • the gas channel of each layer is connected to the cooling gas output end of a temperature control device, and a solenoid valve is provided on the communicating pipeline to realize the independent control of each gas channel.
  • the solenoid valve is connected to the cooling gas output end of a temperature control device. The electrical connection of the controller.
  • the number of the gas channels in each of the cooling plates is correspondingly equal to the number of the temperature monitoring devices.
  • the controller controls the corresponding solenoid valve to open, and the cooling gas of the temperature control device is output into the gas channel of the layer and passes through the layer.
  • the blowing holes blow out cooling gas from the surroundings to cool down the cells in the layer area from the surroundings.
  • the jacking device drives the lower electrode to move up and down, and the upper electrode is movably hung up and down on a support plate.
  • the jacking device drives the lower electrode Lift up the tooling carrying the stacked cells, and then continue to rise so that the upper electrode contacts the upper cover plate on the upper part of the stacked cells, and then continue to rise to support the upper electrode, using the upper electrode itself The weight compresses the battery slice.
  • the utility model of the solar cell power injection device has the beneficial effects of adopting layered individual temperature control and cooling and layered monitoring of temperature, reducing the temperature difference between the middle layer and the upper and lower cells, It ensures that the temperature difference between the stacked cells is controlled within an acceptable range; the compressed cooling gas blowing method is used to cool the cells from the surrounding area, reducing the central area and the four peripheral corners of the cell.
  • the temperature difference ensures that the temperature difference between the center and the four peripheral corners of the stacked multi-cell cells is controlled within an acceptable range, which greatly improves the process effect of the electro-injection against light decay.
  • Figure 1 is a schematic diagram of the structure of the solar cell power injection device in the embodiment of the utility model
  • 1 upper electrode; 2 lower electrode; 3 surround cooling air blowing device, 31 cooling plate, 32 air blowing hole; 4 electric injection reaction space; 5 temperature monitoring device; 6 bottom plate; 7 positioning column.
  • a method for temperature control of solar cells by electroluminescence attenuation zone is to divide the stacked cells into a plurality of layers, and set a temperature monitoring device in each layer to monitor the temperature of the layer in real time, and to monitor the temperature of the layer in real time.
  • a compressed cooling gas blowing device is arranged around the first floor area to independently cool each floor area according to the detection data of the temperature monitoring device of the floor.
  • this embodiment also includes a solar cell electric injection device 100, which includes an electric injection reaction space 4 enclosed by an upper electrode 1, a lower electrode 2, a surrounding cooling and air blowing device 3, and upper and lower electrodes.
  • a solar cell electric injection device 100 which includes an electric injection reaction space 4 enclosed by an upper electrode 1, a lower electrode 2, a surrounding cooling and air blowing device 3, and upper and lower electrodes.
  • Several temperature monitoring devices 5 and controllers (not shown in the figure) distributed in layers.
  • the stacked multi-cell battery pieces are placed in a material box tooling, and an upper cover plate is arranged on it. When power is injected, the material box tooling is located in the electric injection reaction space 4 for power injection.
  • the surrounding cooling and blowing device 3 includes a rectangular cooling plate 31, a number of gas channels (not shown in the figure) arranged in the cooling plate 31 and arranged in layers up and down, and layers arranged on the inner surface of the cooling plate 31. And there are several layers of blowing holes 32 connected to the corresponding gas channels, the gas channels of each layer are connected to the cooling gas output end of a temperature control device, and a solenoid valve is provided on the connecting pipe to realize the control of each gas channel. For individual control, the solenoid valve is electrically connected to the controller.
  • the temperature control device is an existing very mature module, which can be directly purchased from the market. It is a very mature technical means in the field of temperature control technology. Therefore, this embodiment will not repeat it.
  • the controller controls the corresponding solenoid valve Turn on, the cooling gas of the temperature control device is output into the gas channel of the layer, and the cooling gas is blown out from the surroundings through the blowing holes 32 of the layer, and the cells in the layer area are cooled from the surroundings; if the monitored temperature is lower than the setting If the range is set, the solenoid valve will not open, and the upper and lower electrodes will continue to be electrically injected.
  • the temperature monitoring device 5 can be a temperature sensor, an infrared thermometer or other temperature measuring devices. This embodiment is not limited.
  • the laminated cell is divided into three layers: upper, middle, and lower regions, and correspondingly, three infrared thermometers and three layers of surrounding air blowing holes are provided.
  • the solar cell power injection device 100 in this embodiment also includes a jacking device (not shown in the figure) that drives the lower electrode 2 to move up and down.
  • the upper electrode 1 is movably hung on a support plate up and down.
  • the lifting device drives the lower electrode 2 to lift up the tooling that carries the stacked cells, and then continues to rise so that the upper electrode 1 contacts the upper cover plate on the upper part of the stacked cell, and then continues to rise to lift the upper electrode 1.
  • Use the weight of the upper electrode 1 to compress the battery sheet to ensure the effectiveness of the power injection process.
  • the bottom electrode 2 is arranged on a bottom plate 6, and a positioning column 7 is arranged on the bottom plate 6, and the positioning post 7 can cooperate with the positioning hole in the tool for carrying the stacked cell to realize positioning.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • General Physics & Mathematics (AREA)
  • Computer Hardware Design (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Power Engineering (AREA)
  • Manufacturing & Machinery (AREA)
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  • Photovoltaic Devices (AREA)

Abstract

In a solar cell electrical injection device (100), a solar cell stack is divided into multiple layer sections. A temperature monitoring device (5) is provided at each layer section to monitor the temperature at the layer section in real time. A compressed cooling gas blowing device (3) is arranged around each layer section to independently lower the temperature at each layer section according to detection data obtained by the corresponding temperature monitoring device (5). Dividing a solar cell stack into multiple layers, monitoring the temperature at each layer in real time, and performing independent temperature control on the respective layers ensure uniform temperature distribution at upper and lower portions of the solar cell stack.

Description

一种太阳能电池片注电装置Power injection device for solar cells 【技术领域】【Technical Field】
本实用新型属于电池片电注光衰温控技术领域，特别是涉及一种太阳能电池片注电装置。The utility model belongs to the technical field of solar cell electricity injection light decay temperature control, and particularly relates to a solar cell electricity injection device.
【背景技术】【Background technique】
光致衰减，简称光衰，是指太阳能电池及组件，在光照过程中引起的功率衰减现象。相关研究结果认为P型(掺硼)太阳能电池光致衰减的主要原因，是由双氧原子在多余载流子的作用下向替位硼原子快速扩散结合成硼氧复合体而引起的。这种硼氧复合体是一种亚稳态缺陷，形成了复合中心，能有效俘获并复合在光照下太阳能电池中产生的多余载流子，从而显著降低少数载流子寿命及缩短少数载流子扩散长度，并最终造成太阳能电池光电转换效率的衰减。其中，硅片中的硼、氧含量越大，在光照或载流子注入调节下产生的硼氧复合体越多，少子寿命降低的幅度就越大。Light-induced attenuation, abbreviated as light attenuation, refers to the phenomenon of power attenuation caused by solar cells and components during the process of illumination. Related research results believe that the main reason for the light-induced attenuation of P-type (boron-doped) solar cells is caused by the rapid diffusion of dioxygen atoms to the substituted boron atoms under the action of excess carriers to form a boron-oxygen complex. This boron-oxygen complex is a metastable defect, forming a recombination center, which can effectively trap and recombine the excess carriers generated in the solar cell under light, thereby significantly reducing the minority carrier life and shortening the minority carrier The sub-diffusion length will eventually cause the degradation of the photoelectric conversion efficiency of the solar cell. Among them, the greater the content of boron and oxygen in the silicon wafer, the more boron-oxygen complexes produced under the adjustment of light or carrier injection, and the greater the reduction in the minority carrier lifetime.
在实际应用中电注入抗光衰效果优于光注入抗光衰效果，因此目前效果比较好的设备主要集中在电注入工艺。In practical applications, the anti-light decay effect of electrical injection is better than the anti-light decay effect of light injection. Therefore, the current relatively effective equipment mainly focuses on the electrical injection process.
现有技术中专利号为201820671517.7公开了一种双通道电注入式抗光衰炉，其虽然也实现了叠层式电池片的电注入式抗光衰工艺，但在电注过程中，太阳能电池片，堆叠起来整叠片子注电保温，在电流低的情况下，叠片中间电池片温度偏低，导致电注入工艺效果差，减少叠片数量方案又会降低产能。Patent No. 201820671517.7 in the prior art discloses a dual-channel electric injection type anti-light decay furnace. Although it also realizes the electric injection type anti-light decay process of laminated cells, the solar cell In the case of low current, the temperature of the cell in the middle of the stack is low, resulting in poor electrical injection process effect, and reducing the number of stacks will reduce production capacity.
因此，有必要提供一种新的太阳能电池片注电装置来解决上述问题。Therefore, it is necessary to provide a new solar cell power injection device to solve the above-mentioned problems.
【实用新型内容】[Utility model content]
本实用新型的主要目的在于提供一种太阳能电池片注电装置，其将堆叠的电池片进行分层，并对每一层的温度进行实时监测与分层控温，保障了堆叠的电池片上下温度分布均匀。The main purpose of the utility model is to provide a solar cell power injection device, which layered the stacked cells, and performed real-time monitoring and layered temperature control of the temperature of each layer, ensuring that the stacked cells are up and down. The temperature distribution is uniform.
本实用新型通过如下技术方案实现上述目的：一种太阳能电池片注电装置，其包括由一上电极、一下电极、一环绕式冷却吹气装置围挡形成的电注反应空间、上下分层分布的若干温度监测装置、控制器；所述环绕式冷却吹 气装置包括环绕所述电注反应空间分层设置的且进行独立控制的若干吹气孔，所述控制器与所述温度监测装置电气连接。The utility model achieves the above purpose through the following technical solutions: a solar cell power injection device, which includes an electric injection reaction space formed by an upper electrode, a lower electrode, a surrounding cooling and air blowing device, and an upper and lower layered distribution A number of temperature monitoring devices and controllers; the surrounding cooling air blowing device includes a number of air blowing holes arranged in layers around the electro-injection reaction space and independently controlled, and the controller is electrically connected to the temperature monitoring device .
进一步的，所述环绕式冷却吹气装置包括呈矩形分布的冷却板、设置在所述冷却板内的且上下分层设置的若干气体通道、分层设置在所述冷却板内侧表面上的且与对应的所述气体通道连通的若干层所述吹气孔。Further, the surrounding cooling air blowing device includes a cooling plate distributed in a rectangular shape, a plurality of gas channels arranged in the cooling plate and arranged in layers up and down, and a gas channel arranged in layers on the inner surface of the cooling plate. Several layers of the blowing holes communicated with the corresponding gas channels.
进一步的，每一层的所述气体通道连通一温控装置的冷却气体输出端，且在该连通管路上设置有电磁阀，实现每一个所述气体通道的单独控制，所述电磁阀与所述控制器电气连接。Further, the gas channel of each layer is connected to the cooling gas output end of a temperature control device, and a solenoid valve is provided on the communicating pipeline to realize the independent control of each gas channel. The solenoid valve is connected to the cooling gas output end of a temperature control device. The electrical connection of the controller.
进一步的，每个所述冷却板中的所述气体通道的数量与所述温度监测装置的数量对应相等。Further, the number of the gas channels in each of the cooling plates is correspondingly equal to the number of the temperature monitoring devices.
进一步的，当温度监测装置监测到对应层的温度高于设定范围时，所述控制器控制对应的电磁阀开启，温控装置的冷却气体输出至该层的气体通道内，并通过该层的吹气孔从四周吹出冷却气体，从四周对该层区的电池片进行降温。Further, when the temperature monitoring device monitors that the temperature of the corresponding layer is higher than the set range, the controller controls the corresponding solenoid valve to open, and the cooling gas of the temperature control device is output into the gas channel of the layer and passes through the layer. The blowing holes blow out cooling gas from the surroundings to cool down the cells in the layer area from the surroundings.
进一步的，还包括一驱动所述下电极进行上下运动的顶升装置，所述上电极上下可活动的挂设在一支撑板上，在注电时，所述顶升装置驱动所述下电极向上先托起承载有堆叠电池片的工装，然后继续上升，使得所述上电极接触堆叠状电池片上部的上盖板，然后继续上升将所述上电极托起，利用所述上电极的自身重量压紧电池片。Further, it also includes a jacking device that drives the lower electrode to move up and down, and the upper electrode is movably hung up and down on a support plate. When power is injected, the jacking device drives the lower electrode Lift up the tooling carrying the stacked cells, and then continue to rise so that the upper electrode contacts the upper cover plate on the upper part of the stacked cells, and then continue to rise to support the upper electrode, using the upper electrode itself The weight compresses the battery slice.
进一步的，所述下电极设置在一底板上，所述底板上设置有定位柱，该定位住与承载堆叠电池片的工装中的定位孔配合实现定位。Further, the lower electrode is arranged on a bottom plate, and a positioning column is arranged on the bottom plate, and the positioning column cooperates with the positioning hole in the tool carrying the stacked cell to realize positioning.
与现有技术相比，本实用新型一种太阳能电池片注电装置的有益效果在于：采用分层单独温控降温以及分层监控温度，减小了中间层与上下层电池片的温度差，保证了叠层的多片电池片之间的温差控制在可接受的范围内；采用压缩冷却气体吹气方式，从电池片的四周对其进行降温，减小了电池片中心区域与四周边角的温度差，保证了叠层的多片电池片的中心与四周边角的温差控制在可接受的范围内，大大提高了电注抗光衰的工艺效果。Compared with the prior art, the utility model of the solar cell power injection device has the beneficial effects of adopting layered individual temperature control and cooling and layered monitoring of temperature, reducing the temperature difference between the middle layer and the upper and lower cells, It ensures that the temperature difference between the stacked cells is controlled within an acceptable range; the compressed cooling gas blowing method is used to cool the cells from the surrounding area, reducing the central area and the four peripheral corners of the cell. The temperature difference ensures that the temperature difference between the center and the four peripheral corners of the stacked multi-cell cells is controlled within an acceptable range, which greatly improves the process effect of the electro-injection against light decay.
【附图说明】【Explanation of the drawings】
图1为本实用新型实施例中太阳能电池片注电装置的结构示意图；Figure 1 is a schematic diagram of the structure of the solar cell power injection device in the embodiment of the utility model;
图中数字表示：The numbers in the figure indicate:
100太阳能电池片注电装置；100 solar cell power injection device;
1上电极；2下电极；3环绕式冷却吹气装置，31冷却板，32吹气孔；4电注反应空间；5温度监测装置；6底板；7定位柱。1 upper electrode; 2 lower electrode; 3 surround cooling air blowing device, 31 cooling plate, 32 air blowing hole; 4 electric injection reaction space; 5 temperature monitoring device; 6 bottom plate; 7 positioning column.
【具体实施方式】【Detailed ways】
实施例：Examples:
本实施例一种太阳能电池片电注光衰分区控温方法，其将堆叠的电池片分成多个层区，在每一层区设置一温度监测装置实时监测该层区的温度，并在每一层区四周设置压缩冷却气体吹气装置根据该层的所述温度监测装置的检测数据对每一层区进行独立降温。In this embodiment, a method for temperature control of solar cells by electroluminescence attenuation zone is to divide the stacked cells into a plurality of layers, and set a temperature monitoring device in each layer to monitor the temperature of the layer in real time, and to monitor the temperature of the layer in real time. A compressed cooling gas blowing device is arranged around the first floor area to independently cool each floor area according to the detection data of the temperature monitoring device of the floor.
请参照图1，本实施例还包括一太阳能电池片注电装置100，其包括由一上电极1、一下电极2、一环绕式冷却吹气装置3围挡形成的电注反应空间4、上下分层分布的若干温度监测装置5、控制器(图中未显示)。堆叠状的多片电池片放置在一料盒工装内，且上面设置有上盖板，在注电时，该料盒工装位于电注反应空间4内进行注电。1, this embodiment also includes a solar cell electric injection device 100, which includes an electric injection reaction space 4 enclosed by an upper electrode 1, a lower electrode 2, a surrounding cooling and air blowing device 3, and upper and lower electrodes. Several temperature monitoring devices 5 and controllers (not shown in the figure) distributed in layers. The stacked multi-cell battery pieces are placed in a material box tooling, and an upper cover plate is arranged on it. When power is injected, the material box tooling is located in the electric injection reaction space 4 for power injection.
环绕式冷却吹气装置3包括呈矩形分布的冷却板31、设置在冷却板31内的且上下分层设置的若干气体通道(图中未标识)、分层设置在冷却板31内侧表面上的且与对应的所述气体通道连通的若干层吹气孔32，每一层的气体通道连通一温控装置的冷却气体输出端，且在该连通管路上设置有电磁阀，实现每一个气体通道的单独控制，所述电磁阀与所述控制器电气连接。温控装置为现有非常成熟的模块，可直接从市面上购买获得，其在温控技术领域属于非常成熟的技术手段，因此，本实施例不再赘述。The surrounding cooling and blowing device 3 includes a rectangular cooling plate 31, a number of gas channels (not shown in the figure) arranged in the cooling plate 31 and arranged in layers up and down, and layers arranged on the inner surface of the cooling plate 31. And there are several layers of blowing holes 32 connected to the corresponding gas channels, the gas channels of each layer are connected to the cooling gas output end of a temperature control device, and a solenoid valve is provided on the connecting pipe to realize the control of each gas channel. For individual control, the solenoid valve is electrically connected to the controller. The temperature control device is an existing very mature module, which can be directly purchased from the market. It is a very mature technical means in the field of temperature control technology. Therefore, this embodiment will not repeat it.
同一层的所述气体通道可通过管道连通，再通过一总连接管与温控装置的冷却气体输出端连通。The gas channels on the same layer can be connected through pipes, and then connected with the cooling gas output end of the temperature control device through a main connecting pipe.
每个冷却板31中的所述气体通道的数量与所述温度监测装置的数量对应相等。The number of the gas channels in each cooling plate 31 corresponds to the number of the temperature monitoring devices.
每层吹气孔32作用于对应的一个层区的电池片，并通过吹出压缩冷却气 体对该层区的电池片进行冷却降温。每层的温度监测装置5也监测对应层区的电池片的温度，并反馈给所述控制器，当其监测到对应层的温度高于设定范围时，所述控制器控制对应的电磁阀开启，温控装置的冷却气体输出至该层的气体通道内，并通过该层的吹气孔32从四周吹出冷却气体，从四周对该层区的电池片进行降温；若监测的温度低于设定范围，则电磁阀不开启，上下电极持续电注。The air blowing holes 32 of each layer act on the battery slices in a corresponding layer area, and cool the battery slices in the layer area by blowing out the compressed cooling gas. The temperature monitoring device 5 of each layer also monitors the temperature of the cell in the corresponding layer area and feeds it back to the controller. When it monitors that the temperature of the corresponding layer is higher than the set range, the controller controls the corresponding solenoid valve Turn on, the cooling gas of the temperature control device is output into the gas channel of the layer, and the cooling gas is blown out from the surroundings through the blowing holes 32 of the layer, and the cells in the layer area are cooled from the surroundings; if the monitored temperature is lower than the setting If the range is set, the solenoid valve will not open, and the upper and lower electrodes will continue to be electrically injected.
温度监测装置5可以为温度传感器、红外测温仪或其他测温装置。本实施例不作限定。The temperature monitoring device 5 can be a temperature sensor, an infrared thermometer or other temperature measuring devices. This embodiment is not limited.
本实施例中，叠层的电池片被分为上、中、下三个层区，对应的设置有三个红外测温仪以及三层环绕式吹气孔。In this embodiment, the laminated cell is divided into three layers: upper, middle, and lower regions, and correspondingly, three infrared thermometers and three layers of surrounding air blowing holes are provided.
本实施例中太阳能电池片注电装置100还包括一驱动下电极2进行上下运动的顶升装置(图中未标识)，上电极1上下可活动的挂设在一支撑板上，在注电时，顶升装置驱动下电极2向上先托起承载有堆叠电池片的工装，然后继续上升，使得上电极1接触堆叠状电池片上部的上盖板，然后继续上升将上电极1托起，利用上电极1的自身重量压紧电池片，保障注电过程的有效性。The solar cell power injection device 100 in this embodiment also includes a jacking device (not shown in the figure) that drives the lower electrode 2 to move up and down. The upper electrode 1 is movably hung on a support plate up and down. At this time, the lifting device drives the lower electrode 2 to lift up the tooling that carries the stacked cells, and then continues to rise so that the upper electrode 1 contacts the upper cover plate on the upper part of the stacked cell, and then continues to rise to lift the upper electrode 1. Use the weight of the upper electrode 1 to compress the battery sheet to ensure the effectiveness of the power injection process.
下电极2设置在一底板6上，底板6上设置有定位柱7，该定位住7可与承载堆叠电池片的工装中的定位孔配合实现定位。The bottom electrode 2 is arranged on a bottom plate 6, and a positioning column 7 is arranged on the bottom plate 6, and the positioning post 7 can cooperate with the positioning hole in the tool for carrying the stacked cell to realize positioning.
本实施例一种太阳能电池片电注光衰分区控温方法和注电装置100，采用分层单独温控降温以及分层监控温度，减小了中间层与上下层电池片的温度差，保证了叠层的多片电池片之间的温差控制在可接受的范围内；采用压缩冷却气体吹气方式，从电池片的四周对其进行降温，减小了电池片中心区域与四周边角的温度差，保证了叠层的多片电池片的中心与四周边角的温差控制在可接受的范围内，大大提高了电注抗光衰的工艺效果。In this embodiment, a solar cell electric light-injection decay zone temperature control method and an electric power injection device 100 adopt layered individual temperature control and cooling and layered monitoring of temperature, which reduces the temperature difference between the middle layer and the upper and lower cells, and ensures The temperature difference between the stacked cells is controlled within an acceptable range; the compressed cooling gas blowing method is used to cool the cells from around the cell, reducing the difference between the center area of the cell and the four peripheral corners. The temperature difference ensures that the temperature difference between the center and the four peripheral corners of the stacked multiple cells is controlled within an acceptable range, which greatly improves the effect of the electro-implantation process against light decay.
以上所述的仅是本实用新型的一些实施方式。对于本领域的普通技术人员来说，在不脱离本实用新型创造构思的前提下，还可以做出若干变形和改进，这些都属于本实用新型的保护范围。What has been described above are only some embodiments of the present invention. For those of ordinary skill in the art, without departing from the inventive concept of the present utility model, several modifications and improvements can be made, and these all belong to the protection scope of the present utility model.

Claims (7)

  1. 一种太阳能电池片注电装置，其特征在于：其包括由一上电极、一下电极、一环绕式冷却吹气装置围挡形成的电注反应空间、上下分层分布的若干温度监测装置、控制器；所述环绕式冷却吹气装置包括环绕所述电注反应空间分层设置的且进行独立控制的若干吹气孔，所述控制器与所述温度监测装置电气连接。A solar cell power injection device, which is characterized in that it includes an electric injection reaction space formed by an upper electrode, a lower electrode, a surrounding cooling and air blowing device, a number of temperature monitoring devices distributed in layers, and a control device. The surrounding cooling air blowing device includes a number of air blowing holes arranged in layers around the electric injection reaction space and independently controlled, and the controller is electrically connected to the temperature monitoring device.
  2. 如权利要求1所述的太阳能电池片注电装置，其特征在于：所述环绕式冷却吹气装置包括呈矩形分布的冷却板、设置在所述冷却板内的且上下分层设置的若干气体通道、分层设置在所述冷却板内侧表面上的且与对应的所述气体通道连通的若干层所述吹气孔。The solar cell power injection device according to claim 1, wherein the surrounding cooling and blowing device includes a rectangular cooling plate, and a plurality of gases arranged in the cooling plate and arranged in layers. Channels, layers of the blowing holes arranged on the inner surface of the cooling plate in layers and communicating with the corresponding gas channels.
  3. 如权利要求2所述的太阳能电池片注电装置，其特征在于：每一层的所述气体通道连通一温控装置的冷却气体输出端，且在该连通管路上设置有电磁阀，实现每一个所述气体通道的单独控制，所述电磁阀与所述控制器电气连接。The solar cell power injection device according to claim 2, wherein the gas channel of each layer is connected to the cooling gas output end of a temperature control device, and a solenoid valve is provided on the connecting pipe to realize each For individual control of the gas channel, the solenoid valve is electrically connected to the controller.
  4. 如权利要求2所述的太阳能电池片注电装置，其特征在于：每个所述冷却板中的所述气体通道的数量与所述温度监测装置的数量对应相等。The solar cell sheet electricity injection device according to claim 2, wherein the number of the gas channels in each of the cooling plates is correspondingly equal to the number of the temperature monitoring devices.
  5. 如权利要求3所述的太阳能电池片注电装置，其特征在于：当温度监测装置监测到对应层的温度高于设定范围时，所述控制器控制对应的电磁阀开启，温控装置的冷却气体输出至该层的气体通道内，并通过该层的吹气孔从四周吹出冷却气体，从四周对该层区的电池片进行降温。The solar cell power injection device according to claim 3, characterized in that: when the temperature monitoring device monitors that the temperature of the corresponding layer is higher than the set range, the controller controls the corresponding solenoid valve to open, and the temperature control device The cooling gas is output into the gas channel of the layer, and the cooling gas is blown out from the surroundings through the blowing holes of the layer to cool down the cell slices in the layer area from the surroundings.
  6. 如权利要求1所述的太阳能电池片注电装置，其特征在于：还包括一驱动所述下电极进行上下运动的顶升装置，所述上电极上下可活动的挂设在一支撑板上，在注电时，所述顶升装置驱动所述下电极向上先托起承载有堆叠电池片的工装，然后继续上升，使得所述上电极接触堆叠状电池片上部的上盖板，然后继续上升将所述上电极托起，利用所述上电极的自身重量压紧电池片。The solar cell power injection device of claim 1, further comprising a jacking device that drives the lower electrode to move up and down, and the upper electrode is movably hung on a support plate up and down, During power injection, the jacking device drives the bottom electrode to lift up the tooling carrying the stacked cells, and then continues to rise, so that the upper electrode contacts the upper cover plate on the upper part of the stacked cells, and then continues to rise The upper electrode is lifted up, and the battery sheet is compressed by the weight of the upper electrode.
  7. 如权利要求1所述的太阳能电池片注电装置，其特征在于：所述下电极设置在一底板上，所述底板上设置有定位柱，该定位住与承载堆叠电池片的工装中的定位孔配合实现定位。The solar cell power injection device according to claim 1, wherein the lower electrode is provided on a bottom plate, and a positioning column is provided on the bottom plate, and the positioning and the positioning in the tooling carrying the stacked cells Hole fits to achieve positioning.
PCT/CN2020/088273 2019-12-17 2020-04-30 Solar cell electrical injection device WO2021120495A1 (en)

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