The thermoelectric refrigeration module can absorb and release heat and accurately control temperature without the need for transmission components and refrigerants. Features high temperature regulation accuracy, fast response time, green and environmental protection, light weight, low noise, small size, etc
Thermoelectric refrigeration module, referred to as TEM or thermoelectric refrigeration device, refers to a semiconductor device that uses thermoelectric refrigeration as a technical carrier and consists of multiple small or micro heat pumps. Thermoelectric refrigeration technology is a process that controls the direction and magnitude of heat flux density by controlling the direction and magnitude of direct current based on the technical principle of heat transfer when current flows through different conductors.
Compared to traditional mechanical refrigeration, thermoelectric refrigeration modules can achieve heat absorption/release and precise temperature control without the need for transmission components and refrigerants. They have the characteristics of high temperature regulation accuracy, fast response time, green environmental protection, light weight, low noise, and small size. Therefore, thermoelectric refrigeration modules are more suitable for small cooling capacity scenarios with high requirements for size, silence, and convenience, including car refrigerators, car lidars, car thermostatic seats, car power batteries, thermostatic mattresses, communication light modules, industrial CCD image sensors, electronic refrigerators, medical refrigeration equipment, medical PCR testers, aviation detectors, and so on.
Currently, thermoelectric refrigeration modules have been widely used in multiple scenarios in semiconductor, automotive, industrial, aviation, medical, communications, and other fields. With the rapid development of the downstream application market, its demand continues to increase and its scale expands year by year. According to the “2023-2027 Global Thermoelectric Refrigeration Module (TEM) Industry Deep Market Research and Key Regional Research Report” released by the New Scientology Industrial Research Center, the domestic thermoelectric refrigeration module market size in 2021 has reached 1.8 billion yuan, a year-on-year increase of 13.1%.
The performance of thermoelectric refrigeration module products is greatly affected by the quality of thermoelectric materials. At present, Bi2Te3 (bismuth telluride) is the main thermoelectric material with a high degree of commercialization for thermoelectric refrigeration modules in China, which is widely used in cold chain, medical treatment, optical communication temperature control, and other fields. However, at the same time, Bi2Te3 also has shortcomings such as high cost and poor mechanical performance, which limits its promotion in the field of more high-end and demanding thermoelectric refrigeration modules. Therefore, developing new high-performance thermoelectric materials is one of the urgent needs for the development of the thermoelectric refrigeration module industry in China.
At present, new high-performance thermoelectric materials such as MgAgSb alloy, Cu_ 2Se, Mg2 (Si, Sn) alloy, N-type Mg3 (Bi, Sb) 2 alloy, which have advantages of low cost, good mechanical properties, and strong environmental performance, have become research and development hotspots. In the future, the thermoelectric refrigeration module industry is expected to usher in a golden period of rapid development against the backdrop of the accelerating process of research and development of thermoelectric materials in China.
According to industry analysts from New Scientist, the main foreign-funded enterprises currently operating thermoelectric refrigeration modules in China are Ferrotec, Erlu Marlo, KELK Ltd., RMT Ltd., Laird Thermal Company, and others; Local enterprises mainly include Fuxin Technology, NAK Thermoelectric, Guanjing Semiconductor, Aoling Refrigeration, Thermoelectric New Energy, Aoliang Electronics, etc.
Currently, foreign-funded enterprises occupy a leading position in the high-end market of thermoelectric refrigeration modules in China. Compared with foreign funded enterprises, local enterprises still have a certain gap in technology, scale, and other aspects. Therefore, in the future, local enterprises need to accelerate the development and application process of new thermoelectric materials, accelerate the improvement of enterprise strength and product advantages, and promote the continuous acceleration of the localization process of high-end thermoelectric refrigeration modules in China. Market.