Welcome to TEC Science Lesson! This issue will describe in detail the influence of thermal resistance on both sides of semiconductor refrigeration performance. If you have questions about this article or want to learn more about TEC, please leave a comment in the comments section 01 What is thermal resistance? Simply put, thermal resistance is the degree to which an object impedes the transfer of heat. For semiconductor refrigeration, the thermal resistance on both sides mainly comes fromThe thermal conductivity material in contact with it, the contact thermal resistance between interfaces and the external heat dissipation environmentLet's wait. ▲ Schematic diagram of refrigeration unit   Above is a schematic diagram of the structure of the cooling unit: the entire unit is composed of a semiconductor cooler, thermal materials on both sides, a heat sink and a ...

Welcome to TEC Science Lesson! In this issue, we will teach you how to find the semiconductor refrigeration sheet that meets your needs in many models through a specific application case. If you have questions about this article or want to learn more about TEC, please leave a comment in the comments section 1.TEC core parameters and selection recommendations First of all, we need to consider the following key parameters when conducting TEC selection. These parameters have been mentioned in previous lessons, so let's review them today: 01 Qcmax (Maximum cooling capacity) Definition: The maximum cooling capacity of TEC at a maximum temperature difference ΔTmax of 0. Selection suggestion: We should calculate according to the actual refrigeration demand in the application scenario, and then increase a certain margin. 02 ΔTmax (Maximum te...

Welcome to TEC Science Lesson! In this issue, cool will take you to understand and learn the classic installation method of semiconductor refrigeration - screw installation. If you have questions about this article or want to learn more about TEC, please leave a comment in the comments section   01 Semiconductor cooler installation method- Screw mounting When discussing semiconductor refrigeration, the choice of installation method is very important. It is about the stability and cooling efficiency of TEC systems. Screw mounting is favored in many application scenarios due to its stable structure and easy maintenance. Whether it is high-precision medical equipment, or precision industrial chiller, screw installation can provide a solid and stable support platform. Let's take a look at the specific steps and precautions for screw installation   02 ...

In daily life, when broadcasting live, mobile games, or opening some special performance applications, mobile phones are easy to get hot, stuck, and even black screen. In order to solve the hot problem of electronic equipment, there are a variety of heat dissipation tools on the market. Among them, the semiconductor water-cooled/air-cooled cooling back clip is gradually known and applied by virtue of its unique heat dissipation method. Next, this article will explore in depth the working principle, advantages and disadvantages of these two types of cooling back clips and market performance. 【TEC Air cooling cooling back clipSolution 】 Working principle: The working principle of the semiconductor air-cooled cooling back clip combines semiconductor refrigeration technology and fan cooling technology. The cold end is close to the hot parts of electronic devices such as mobile ...

In recent years, the way people travel has become more diversified, and the pursuit of quality of life has become higher and higher. As a technology-based TEC small household appliance, Car refrigerator It has gradually become an indispensable part of people's self-driving travel, outdoor activities, cargo transportation and other processes. Next, This article will give you a specific introduction The working principle, unique advantages and key application scenarios of car refrigerator. 1、How the car refrigerator works The working principle of the TEC car refrigerator is based on the Peltier effect (see TEC science Class Session 1) : When the car refrigerator is powered on, the current passes through the semiconductor material, forming a cold and hot difference at the contact point, one side absorbs heat (cold end), the other side releases heat...

Welcome to TEC Science Lesson! This issue will introduce you to the unique advantages of semiconductor refrigeration (TEC) technology and explain how these advantages are manifested in practical applications. In recent years, with the development of science and technology, people have higher and higher requirements for refrigeration technology: although the traditional compression refrigeration system has been widely used, it still has shortcomings in some specific scenarios. In this context of demand, semiconductor coolers (TEC) with their unique performance advantages, gradually open up their own industry new market. 1、TEC- high reliability Semiconductor coolers (TECs) enable extremely precise temperature control, which is difficult to achieve with traditional refrigeration technologies. In the field of optical communication, TEC is used for the temperature c...

In the era of semiconductor refrigeration, TEC technology with its high reliability, accurate temperature control, no vibration and noise, multi-function, environmental protection and other unique advantages, widely used in optical communication, medical, consumer electronics, automotive refrigeration, power generation, detectors and other different industries. Next, this paper will introduce the specific application of TEC technology in the above industries in detail.   1、optical communication industry Optical module is the core component of photoelectric signal conversion in optical fiber communication system, among which the performance of key components such as laser diode (LD) and photodetector is directly related to temperature, temperature change will cause wavelength drift of laser, resulting in signal distortion, optical power reduction, noise increase, device l...

Welcome to TEC Science Lesson! Last week, we learned about the working principle and basic structure of the semiconductor refrigerator, and this class will continue to introduce its key parameters and performance. 1、Relevant performance parameters of thermoelectric refrigerator When choosing a semiconductor cooler, its comprehensive performance (such as cooling capacity, heat dissipation capacity, etc.) is our focus. The comprehensive performance of the semiconductor refrigerator is mainly determined by the four performance parameters of Imax, Vmax, DTmax and Qcmax. Let's take a look at what these parameters represent. ①Imax (maximum current) : the current value passing through TEC when the temperature difference ΔT between the heat releasing surface and the heat absorbing surface reaches its maximum. At this time, the heat absorption Qc of TEC is 0. I...

Hello everyone, welcome to TEC Science Class! In the first phase, we will focus on introducing the working principle and basic structure of semiconductor coolers. 1、 the working principle of semiconductor refrigerator- The Peltier effect Semiconductor refrigeration is also known as thermoelectric refrigeration or thermoelectric refrigeration, and its working principle is based on the Peltier effect in the thermoelectric effect. The Paltier effect was born in 1834. A French physicist named Peltier found that when the current flows through the contact formed by two different conductors, the contact will produce heat transfer and heat absorption phenomenon, and the size of the heat transfer or heat absorption is determined by the size of the current. This is the phenomenon of cooling and heating of semiconductors, also known as the Paltier effect. Its heat is calculated ...

In recent years, with the enhancement of consumers' awareness of environmental protection and energy saving, new energy vehicles have gradually become people's first choice for car purchase. The government's strong support for new energy vehicles, including purchase subsidies, exemption from purchase tax, charging pile construction and other measures, has further promoted the market development of new energy vehicles. According to data released by Rho Motion, a market research company, from January to September 2024, the total production and sales of new energy vehicles completed 8.316 million and 8.32 million, respectively, an increase of 31.7% and 32.5%. It is expected that by the end of 2024, the production and sales scale of new energy vehicles in China is expected to reach 12 million, and the overall market penetration rate will exceed 50%. The continuous growth of product...

Have you all heard of pumping lasers? Its English name is pump laser, which is a laser that uses the pump energy to stimulate the laser to amplify the medium (such as crystals, glass, gas, etc.) to produce laser emission. The pump laser is composed of laser medium, pump source, resonator, output coupler and controller, etc. It is mainly used in industrial, medical, communication, information technology and other fields, such as manufacturing micromachining, clinical treatment, optical communication, measurement and lidar. It uses a laser as a pump source and provides energy through a semiconductor laser. This energy is absorbed by the laser medium, such as ytterbium-doped fibers or crystals, and excites electrons in the medium. Through the above process, the final output of high power and high quality laser is generated.   ▲ Pump laser working principle   【980nm pump...

On September 25, the 12th (2024) China Semiconductor Equipment Annual Meeting and Semiconductor Equipment and Core Components Exhibition (CSEAC) was held in Wuxi Taihu International Expo Center. China Semiconductor Equipment Annual Meeting is China's semiconductor industry authoritative equipment and core components exhibition, the conference to "chip revitalization, equipment first" as the theme, based on the status quo of the semiconductor industry, looking forward to the development of cutting-edge technology, gather the strength of industry, research and development, to jointly explore the future of China's semiconductor equipment and materials industry. From macro architecture to technical difficulties, the opportunities and challenges facing semiconductor devices are presented in a comprehensive manner. Strength is gathered and unveiled Hangzhou Dah...