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Chained atmosphere furnace and sintering method for producing crystalline silicon photovoltaic cell

A technology of photovoltaic cells and atmosphere furnaces, applied in electrical components, furnaces, circuits, etc., can solve problems such as inability to provide effective references, achieve the effects of reducing nitrogen consumption, stable transmission, and preventing battery oxidation

Inactive Publication Date: 2014-02-12
CHINA UNITED CLEANING TECH BEIJING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

As it is a new process technology, international and domestic equipment manufacturers cannot provide effective reference, and must be based on independent research and development

Method used

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  • Chained atmosphere furnace and sintering method for producing crystalline silicon photovoltaic cell
  • Chained atmosphere furnace and sintering method for producing crystalline silicon photovoltaic cell
  • Chained atmosphere furnace and sintering method for producing crystalline silicon photovoltaic cell

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] Example 1: as figure 1 , figure 2 , image 3 , Figure 4 shown,

[0037] A chain atmosphere furnace used in the production of crystalline silicon photovoltaic cells, the internal chamber of the equipment is isolated from the outside;

[0038] There is a conveying structure of roller 2, and the roller installed on the roller conveys the crystalline silicon photovoltaic cells from one end of the furnace body to the other end;

[0039] The temperature control of the equipment adopts double temperature control, that is, the heated nitrogen enters the furnace body through pipes 3 and 9, and the overall temperature is regulated again by the infrared heating lamp 10 inside the furnace body;

[0040] The space passing through the photovoltaic cells in the middle of the equipment furnace is the process chamber, and the two sides of the process chamber are exhaust chambers;

[0041] The upper cover of the equipment furnace body is connected to the upper cover lifting device...

Embodiment 2

[0049] Example 2: as figure 1 , figure 2 , image 3 , Figure 4 shown,

[0050] A chain atmosphere furnace used in the production of crystalline silicon photovoltaic cells. The internal chamber of the equipment is isolated from the outside. After the clean nitrogen is introduced, the positive pressure inside the chamber can be maintained to ensure that the interior of the chamber is clean and can prevent crystalline silicon When the photovoltaic cell 1 is oxidized by air when passing through the equipment, such as figure 1 and figure 2 ;

[0051] The roller 2 conveying structure is adopted, and the roller installed on the roller 2 conveys the crystalline silicon photovoltaic cell 1 from one end of the furnace body to the other end;

[0052] The temperature control of the equipment adopts double temperature control, that is, the heated nitrogen gas enters the inside of the furnace body through the pipeline, and the overall temperature is regulated again through the infr...

Embodiment 3

[0066] Example 3: as figure 1 , figure 2 , image 3 , Figure 4 shown,

[0067] A sintering method for a chain atmosphere furnace applied to the production of crystalline silicon photovoltaic cells, comprising the following steps;

[0068] To prevent the nickel metal used in photovoltaic cells from oxidizing under high temperature process conditions, nitrogen gas is introduced into the entire internal cavity of the equipment, and the gap between the lamp tube and transmission shaft passing through the cavity is sealed to reduce nitrogen consumption;

[0069] The direction of the airflow is controlled by adopting the multi-chamber and uniform flow plate method;

[0070] The heated nitrogen enters the chain atmosphere furnace from the upper inlet and the lower inlet, and evenly enters the furnace body of the chain atmosphere furnace through the upper flow plate 11 and the lower flow plate 4, and then enters the exhaust chambers on both sides, and passes through the left row...

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Abstract

The invention discloses a chained atmosphere furnace and sintering method for producing a crystalline silicon photovoltaic cell and belongs to the technical field of chained atmosphere furnaces for producing the crystalline silicon photovoltaic cell. According to the chained atmosphere furnace and sintering method for producing the crystalline silicon photovoltaic cell, a cavity inside equipment is isolated from the outside; a conveying structure with a roller is arranged, and the crystalline silicon photovoltaic cell is conveyed from one end of a furnace body to the other end of the furnace body through idler wheels installed on the roller; a dual temperature control method is adopted by the equipment to achieve temperature control, namely nitrogen enters the furnace body through a pipeline after being heated, and the overall temperature of the nitrogen is regulated and controlled again inside the furnace body through an infrared heating lamp tube; a space allowing the photovoltaic cell to pass through in the middle of the furnace body of the equipment is a process chamber, and exhausting chambers are formed in the two sides of the process chamber respectively; an upper cover of the furnace body of the equipment is connected with an upper cover lifting device so that opening and closing of the furnace body are achieved; a roller transmission mechanism is of a worm and gear structure, and a mechanical transmission device is connected with a servo motor to serve as a power source. The chained atmosphere furnace and sintering method for producing the crystalline silicon photovoltaic cell have the advantages that airflow is smooth and steady, the temperature is even, clean conveying is achieved, transmission is smooth and stable, oxidization of the cell is prevented, and maintenance is convenient to achieve.

Description

technical field [0001] The invention relates to a chain atmosphere furnace and a sintering method applied to the production of crystalline silicon photovoltaic cells, and belongs to the technical field of chain atmosphere furnaces for the production of crystalline silicon photovoltaic cells. Background technique [0002] Solar energy is an inexhaustible and inexhaustible renewable energy source for human beings. It does not produce any environmental pollution and is a completely clean energy source. The conversion of solar radiation energy into electrical energy is one of the fastest growing and most dynamic researches in recent years. Different types of solar cells, also known as photovoltaic cells, have been developed and developed. Photovoltaic cells have unique advantages, surpassing wind energy, hydropower, geothermal energy, nuclear energy and other resources, and are expected to become the main pillar of future power supply. [0003] Photovoltaic cells are simply pow...

Claims

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Application Information

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IPC IPC(8): H01L31/18F27B9/04
CPCF27B9/047H01L31/18Y02P70/50
Inventor 孙良欣岳树民
Owner CHINA UNITED CLEANING TECH BEIJING
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