[Source: Gaogong LED 's " LED Good Products" magazine March issue ]
In the context of the macroeconomic environment, the development of the general lighting market is not as expected, and the industry competition is increasingly fierce, some domestic LED companies have experienced the cold winter of the Year of the Dragon. However, at the beginning of the Year of the Snake, the LED lighting industry passed back and forth warm signals. Most enterprises reflected that the situation in the opening year improved, and the company ushered in a long-lost start.
"The market situation in the opening year is much better than that at the end of last year. The company's order volume has increased greatly. It is expected that the sales of LED business will reach 200 million yuan this year." Du Jianjun, Chairman of Shenzhen Overclocking Technology Co., Ltd. (hereinafter referred to as "Overclocking 3") Deeply confident about the market prospects this year, he said that the "Semiconductor Lighting Energy Conservation Industry Plan" was officially launched, and the municipal engineering project began to start, making the LED lighting market swept the haze of 2012 at the beginning of the new year.
"Two billion sales targets are by no means an idiotic dream. We have our own advantages in technology accumulation." Du Jianjun said that overclocking three has accumulated more than ten years of CPU cooling technology, and started as a LED street lamp company in Taiwan as early as seven years ago. Processing professional radiators. "We are standing at a higher starting point."
The reporter learned that the principle of LED heat dissipation and CPU heat dissipation is the same. It is necessary to solve the heat dissipation and dissipation of the chip. It is to solve the heat dissipation problem with the chip as the heat source. Both of them are also in equipment and technology. Communicating.
"Overclocking three LED cooling technology is rooted in the traditional CPU cooling, and has been improved and innovated on the basis of inheritance." Du Jianjun is full of confidence.
Pay attention to a variety of cooling methods
　 The heat dissipation problem of high-power LED lamps has always been a major obstacle to the development of the industry. Due to poor heat dissipation, the advantages of long-life LEDs are difficult to achieve.
"The heat dissipation problem of high-power, high-wattage lamps is not completely unsolved. Choosing the right technology and technology, from the package to the heat dissipation for reasonable design, can control the temperature within a certain range." Du Jianjun said that For LED street lamps, some core parameters must be considered when designing the heat sink, such as the specific heat of the metal, the thermal conductivity of the metal, the thermal resistance of the chip, the thermal resistance of the heat sink, and the thermal resistance of the surrounding air.
In the choice of heat dissipation method, it depends on the specific lighting.
At present, the heat dissipation methods mainly include natural convection heat dissipation, fan strong air cooling, and heat pipe heat dissipation. In general, adding fan cooling is not suitable for outdoor lighting: First, the outdoor environment is complicated, the fan is easy to damage, and it is not easy to handle; in addition, outdoor lighting such as street lamps are all work at height, for routine maintenance of the fan. It is difficult and risky to change the work; finally, the fan dissipates heat, making the size of the lamp not well controlled. Therefore, for outdoor high-power lamps, heat pipe technology is commonly used. The heat pipe technology can exert excellent effects in high-power heat dissipation, and has the advantages of light weight, simple structure, rapid heat transfer, no moving parts and no need for external power supply.
“The advantages of heat pipe cooling technology applied to high-power LED lighting are particularly obvious.†Du Jianjun said that the efficiency of 300W and 400W application to heat pipe technology is very high. Overclocking three has invention patents in heat pipe technology. At first, the heat pipe patents were only applied to the heat dissipation of the computer CPU. After the improvement and improvement, the patented technology of overclocking three was also applied to the high-power LED.
But at the same time, Du Jianjun also stressed that in the design of the heat sink, it is not just a way to dissipate heat. In order to achieve better heat dissipation, several heat dissipation methods will be reasonably matched.
In the case of extremely high heat density of the LED, the heat pipe can achieve rapid heat dissipation, but the heat pipe has the disadvantages of temperature range limitation, short heat transfer path and directionality due to gravity, and cannot effectively bring the heat source to a distant place, even if The heat pipe can quickly take away the heat source, and still need to be combined with various heat sinks to increase the contact area with the air, thereby increasing the ability of natural convection.
In the indoor heat dissipation design, the overclocked three fan + fin design has also achieved better heat dissipation on the track light product line. This air-cooled fin active cooling system uses a high thermal conductivity 1060 aluminum material, combined with the overclocked three "FIN, compression" patented process, making the heat sink fins more suitable for heat source, than the same volume of traditional aluminum extrusion products Lighter and more heat-dissipating. At the same time, the system adds an efficient double ball fan to further improve heat dissipation.
Unfinished , please refer to the March issue of Gaogong LED 's " LED Good Products" magazine.
In the context of the macroeconomic environment, the development of the general lighting market is not as expected, and the industry competition is increasingly fierce, some domestic LED companies have experienced the cold winter of the Year of the Dragon. However, at the beginning of the Year of the Snake, the LED lighting industry passed back and forth warm signals. Most enterprises reflected that the situation in the opening year improved, and the company ushered in a long-lost start.
"The market situation in the opening year is much better than that at the end of last year. The company's order volume has increased greatly. It is expected that the sales of LED business will reach 200 million yuan this year." Du Jianjun, Chairman of Shenzhen Overclocking Technology Co., Ltd. (hereinafter referred to as "Overclocking 3") Deeply confident about the market prospects this year, he said that the "Semiconductor Lighting Energy Conservation Industry Plan" was officially launched, and the municipal engineering project began to start, making the LED lighting market swept the haze of 2012 at the beginning of the new year.
"Two billion sales targets are by no means an idiotic dream. We have our own advantages in technology accumulation." Du Jianjun said that overclocking three has accumulated more than ten years of CPU cooling technology, and started as a LED street lamp company in Taiwan as early as seven years ago. Processing professional radiators. "We are standing at a higher starting point."
The reporter learned that the principle of LED heat dissipation and CPU heat dissipation is the same. It is necessary to solve the heat dissipation and dissipation of the chip. It is to solve the heat dissipation problem with the chip as the heat source. Both of them are also in equipment and technology. Communicating.
"Overclocking three LED cooling technology is rooted in the traditional CPU cooling, and has been improved and innovated on the basis of inheritance." Du Jianjun is full of confidence.
Pay attention to a variety of cooling methods
　 The heat dissipation problem of high-power LED lamps has always been a major obstacle to the development of the industry. Due to poor heat dissipation, the advantages of long-life LEDs are difficult to achieve.
"The heat dissipation problem of high-power, high-wattage lamps is not completely unsolved. Choosing the right technology and technology, from the package to the heat dissipation for reasonable design, can control the temperature within a certain range." Du Jianjun said that For LED street lamps, some core parameters must be considered when designing the heat sink, such as the specific heat of the metal, the thermal conductivity of the metal, the thermal resistance of the chip, the thermal resistance of the heat sink, and the thermal resistance of the surrounding air.
In the choice of heat dissipation method, it depends on the specific lighting.
At present, the heat dissipation methods mainly include natural convection heat dissipation, fan strong air cooling, and heat pipe heat dissipation. In general, adding fan cooling is not suitable for outdoor lighting: First, the outdoor environment is complicated, the fan is easy to damage, and it is not easy to handle; in addition, outdoor lighting such as street lamps are all work at height, for routine maintenance of the fan. It is difficult and risky to change the work; finally, the fan dissipates heat, making the size of the lamp not well controlled. Therefore, for outdoor high-power lamps, heat pipe technology is commonly used. The heat pipe technology can exert excellent effects in high-power heat dissipation, and has the advantages of light weight, simple structure, rapid heat transfer, no moving parts and no need for external power supply.
“The advantages of heat pipe cooling technology applied to high-power LED lighting are particularly obvious.†Du Jianjun said that the efficiency of 300W and 400W application to heat pipe technology is very high. Overclocking three has invention patents in heat pipe technology. At first, the heat pipe patents were only applied to the heat dissipation of the computer CPU. After the improvement and improvement, the patented technology of overclocking three was also applied to the high-power LED.
But at the same time, Du Jianjun also stressed that in the design of the heat sink, it is not just a way to dissipate heat. In order to achieve better heat dissipation, several heat dissipation methods will be reasonably matched.
In the case of extremely high heat density of the LED, the heat pipe can achieve rapid heat dissipation, but the heat pipe has the disadvantages of temperature range limitation, short heat transfer path and directionality due to gravity, and cannot effectively bring the heat source to a distant place, even if The heat pipe can quickly take away the heat source, and still need to be combined with various heat sinks to increase the contact area with the air, thereby increasing the ability of natural convection.
In the indoor heat dissipation design, the overclocked three fan + fin design has also achieved better heat dissipation on the track light product line. This air-cooled fin active cooling system uses a high thermal conductivity 1060 aluminum material, combined with the overclocked three "FIN, compression" patented process, making the heat sink fins more suitable for heat source, than the same volume of traditional aluminum extrusion products Lighter and more heat-dissipating. At the same time, the system adds an efficient double ball fan to further improve heat dissipation.
Unfinished , please refer to the March issue of Gaogong LED 's " LED Good Products" magazine.
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