Induction Sintering Furnaces for Solar Cells
A technology for solar cells and solar cells, applied in furnaces, circuits, furnace types, etc., can solve the problems of high temperature, slow heating, large heat loss, etc., and achieve the effect of good edge thermal effect, fast heating speed, and less heat loss.
Active Publication Date: 2016-06-22
江苏盎华光伏工程技术研究中心有限公司
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Problems solved by technology
The temperature in the inner cavity of the sintering furnace is high, and the heat loss is large, which is not conducive to reducing the production cost of solar cells
Since the heating of solar cells mainly depends on thermal radiation and conduction process, the heating is slow, which is not conducive to online use
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[0016] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.
[0017] figure 1 It is a structural schematic diagram of the induction sintering furnace used for solar cells in the present invention.
[0018] See figure 1 The induction sintering furnace for solar cells provided by the present invention includes a furnace body 1, and a conveyor belt 2 for laying solar cell sheets is arranged in the furnace body 1, and the conveyor belt 2 is connected with driving rollers, wherein the The furnace body 1 is also provided with a traveling wave magnetic field sensor 3, a limit sensor switch 4 and a temperature detector 5. The traveling wave magnetic field sensor 3 is connected to a three-phase power supply, and the limit sensor switch 4 is located on the conveyor belt 2. left and right sides.
[0019] In the induction sintering furnace for solar cells provided by the present invention, the inner wall of the furnace bod...
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Abstract
The invention discloses an induction sintering furnace used for a solar battery. The induction sintering furnace comprises a furnace body, wherein a conveying belt used for laying a solar battery piece is arranged in the furnace body, the conveying belt is connected with a drive idler wheel, the inside of the furnace body is further provided with traveling wave magnetic field inductors, limiting inductive switches and a temperature detector, the traveling wave magnetic field inductors are connected with a three-phase power source, the limiting inductive switches are arranged on the left side and the right side of the conveying belt respectively, the traveling wave magnetic field inductors are two in number and are symmetrically arranged on the upper side and the lower side of the conveying belt, and the distance between the traveling wave magnetic field inductors and the conveying belt is 1-3 cm. According to the induction sintering furnace used for the solar battery, the magnetic field inductors are used for heating, the heating speed is high, and heat loss is little; compared with a common induction heating mode, the induction sintering furnace is good in edge heat effect, can carry out heating uniformly, and can effectively improve the sintering rate of an aluminum back surface field and electrodes of the solar battery and reduce electric heating loss in sintering.
Description
technical field [0001] The invention relates to an induction heating furnace, in particular to an induction sintering furnace for solar cells. Background technique [0002] Solar cells need high-temperature sintering in the process of aluminum back field and electrode preparation. The traditional process mainly uses resistance furnace for heating. The temperature in the inner cavity of the sintering furnace is high, and the heat loss is large, which is not conducive to reducing the production cost of solar cells. Since the heating of solar cells mainly depends on thermal radiation and conduction process, the heating is slow, which is not conducive to online use. Therefore, it is necessary to provide an induction sintering furnace for solar cells, which has the characteristics of fast heating, high electrothermal efficiency, and has a longer service life than resistance heaters. Contents of the invention [0003] The technical problem to be solved by the present invention...
Claims
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IPC IPC(8): F27B9/40H01L31/18
CPCY02P70/50
Inventor 李帅赵百通高文秀
Owner 江苏盎华光伏工程技术研究中心有限公司