Thermal Overload Relays are protective devices used for overload protection of electric motors or other electrical equipment and electrical circuits,It consists of heating elements, bimetals,contacts and a set of transmission and adjustment mechanisms.
Our Thermal Overload Relays had been divided into five series(as follow),with good quality and most competitive price,had exported into global market for many years:
LR1-D New Thermal Relay
The working principle of the thermal relay is that the current flowing into the heating element generates heat, and the bimetal having different expansion coefficients is deformed. When the deformation reaches a certain distance, the link is pushed to break the control circuit, thereby making the contactor Loss of power, the main circuit is disconnected, to achieve overload protection of the motor.
Thermal Overload Relay,Telemecanique Overload Relay,Thermal Digital Overload Relay,Telemecanique Model Thermal Relay Ningbo Bond Industrial Electric Co., Ltd. , https://www.bondelectro.com
Pay attention to basic research
At present, several major raw materials in the industrial chain of LED products are still dependent on imports. It is necessary to strengthen investment and research and development in this area so that it can be localized as soon as possible. Including key raw materials, substrates for epitaxy, organic sources, high-performance epoxy resins for packaging, silica gel, etc.; phosphors for white LED packaging, which require improved excitation efficiency, improved stability and resistance to light decay, and more research and development. Color phosphors, etc.; LED control and driver ICs require the development of ICs for different applications, suitable for high-power LED drivers, control and driver ICs with different connection methods.
At present, the gap between domestic LED manufacturing equipment and test equipment and foreign countries is still relatively large. Mainly for epitaxial equipment MOCVD and some pre-process chip manufacturing equipment and post-process automatic packaging equipment and automatic testing equipment. It is hoped that relevant domestic departments and enterprises can strengthen investment, accelerate research and development, and provide LED industry chain as soon as possible to form a complete LED industry chain.
Expand the application market
Expanding the market is the biggest driving force for the development of the LED industry and should be given high priority. From the current domestic LED market analysis, there are still many problems, mainly in the following: due to the lack of uniform testing standards and reliability assessment indicators, LED products often appear in the market to be inferior and price chaotic, which will produce LED products. The sense of distrust should be highly valued.
In the application development of LED products, in 2007, we can focus on the following aspects:
First of all, pay attention to the application of semiconductor lighting, here mainly refers to the LED color lighting (landscape lighting and decorative lighting), special general lighting, security lighting, special lighting and general lighting source (this is the largest potential market, will gradually enter the market ) and LED lighting products that use solar energy. These semiconductor lighting market potentials are hundreds of billions of yuan.
Secondly, focus on LED backlights for LCDs of various sizes, backlights for small-area mobile phones, MP3, MP4, PDA, digital cameras, etc., medium-sized LED backlights of about 9 inches to 20 inches for terminal displays. Backlights for large-area LCD TVs, these potential markets are tens of billions of dollars.
In 2007, China will issue 3G licenses, and the launch of the 3G market will be the driving force for LED growth in the small-size backlight market. At the same time, the medium and large size backlight market has become the new favorite of manufacturers. The EU environmental standards have been implemented one after another, and the status of cold cathode fluorescent lamps as the backlight of traditional large-size LCD panels is in jeopardy. LED has won the favor of manufacturers with its green environmental characteristics, LED is moving from small-size LCD backlight to large-size LCD backlight application.
The three primary color LEDs used as backlights still have inconsistent LED attenuation in red, green and blue colors, which affects the service life of white LEDs. The circuit associated with the use of the LED as a backlight also needs to be redesigned. These problems have affected the pace of LEDs entering the large-size LCD backlight market to a certain extent. It will be wait and see whether the LCD TV backlight market will start in 2007.
In addition, various lights on the car, such as front and rear lights, turn signals, side lights, brake lights, headlights, interior lights and dashboard displays, will be fully developed and applied, and the potential market has billions of yuan. Zhongheng Lighting: Seize the brand share of home lighting
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1 
LR2-D Thermal Relay
LR-D New Thermal Relay
LR9-F Thermal Relay
Intermediate Relay
As an overload protection component of the motor, the thermal relay has been widely used in production due to its small size, simple structure and low cost.
Analysis of the current status of LED application market in 2007
From the perspective of the performance and quality of China's current LED products, it is still at the middle and lower levels. The main reason for the analysis is that our basic research and development is insufficient, and we are eager to process and sell LED products.