目前LED照明灯具的最大技术难题之一就是散热问题，散热不畅导致LED驱动电源、电解电容器都成了LED照明灯具进一步发展的短板，LED光源早衰的缘由。

At present, one of the biggest technical problems of LED lighting is heat dissipation, which leads to the LED driving power and electrolytic capacitor as the short board for the further development of the LED lighting, and the reason for the premature failure of the LED light source.

The LED lighting lamps and lanterns is one of the major technical problems in the heat dissipation problem, poor heat dissipation lead to LED drive power supply, electrolytic capacitor is short to the further development of LED lighting lamps and lanterns, the LED light source, the causes of premature aging.

The LED lighting lamps and lanterns is one of the major technical. Ure aging.

只有尽快导出热量才能有效降低LED灯具内的腔体温度，才能保护电源不在持久的高温环境下工作，才能避免LED光源因长期高温工作而发生早衰。

Only when the heat is exported as soon as possible can the cavity temperature in the LED lamp be reduced effectively in order to protect the power supply from working in a lasting high temperature environment, and to avoid the premature failure of the LED light source because of the long-term high temperature work.

Only by reducing export quantity of heat to be effective as soon as possible the cavity temperature inside the LED lamps and lanterns, can protect the power supply does not work in the persistent high temperatures, can avoid the LED light source for high temperature for a long time work and produce premature aging.

Only by reducing export quantity of heat to be effective as soon. Premature aging.

正因为LED光源自身没有红外线、紫外线，因此LED光源自身没有辐射散热功能，LED照明灯具的散热途径只能通过与LED灯珠板密切组合的散热器来导出热量。散热器必须具备热传导、热对流、热辐射的功能。

Because the LED light source itself has no infrared and ultraviolet light, the LED light source itself has no radiating function. The heat dissipation way of the LED lamp can only be derived by the radiator which is closely combined with the LED lamp plate. The radiator must have the functions of heat conduction, thermal convection and thermal radiation.

Because of the LED light source itself no infrared, ultraviolet, so the LED light source itself without radiation cooling function, the LED lighting lamps and lanterns of the cooling way only through close combination with LED lamp bead board heat radiator to export. The radiator must have the function of heat conduction, heat convection and heat radiation.

Because of the LED light source itself no infrared, ultraviolet, so the. Tion of heat conduction, heat convection and heat radiation.

任何散热器，除了要能快速地把热量从发热源传导到散热器的表面，最主要的还是要靠对流和辐射把热量散发到空气中去。导热只解决了传热的途径，而热对流是散热器的主要功能，散热性能主要由散热面积、形状、自然对流强度的能力决定，热辐射只是辅助的作用。一般来说，如果热量从热源到散热器表面的距离小于5mm，那么只要材料导热系数大于5时，其热量就可导出，其余散热就必须由热对流来主导的了。

Any radiator, in addition to the rapid transmission of heat from the heat source to the surface of the radiator, is mainly dependent on convection and radiation to send heat to the air. Heat conduction only solves the way of heat transfer, and thermal convection is the main function of the radiator. Heat dissipation is mainly determined by the capacity of heat dissipation area, shape and natural convection intensity. Heat radiation is only auxiliary. In general, if the heat from the heat source to the surface of the radiator is less than 5mm, the heat can be derived as long as the thermal conductivity of the material is greater than 5, and the rest of the heat must be dominated by the heat convection.

Any radiators, in addition to being able to quickly heat the heat from the heat source to the surface of the radiator, the main thing is to radiate the heat into the air by convection and radiation. Way only solves the heat transfer of thermal conductivity, and heat convection is the main function of the radiator, the heat dissipating performance mainly by natural convection heat dissipation area, shape, strength the ability of the decision, the effect of thermal radiation is auxiliary. In general, if the heat from the heat source to the radiator surface distance is less than 5 mm, so as long as the material coefficient of thermal conductivity is greater than 5, the heat can be derived, and the remaining heat must be dominated by heat convection.

Any radiators, in addition to being able to quickly heat the heat. Of the radiator, the heat dissipating performance mainly by natural convection heat. G as the material coefficient of thermal conductivity is greater than.

大多数的LED照明光源仍然使用低电压（VF＝3．2V）、大电流（IF＝200－700mA）的LED灯珠，由于工作时热量高，必须使用导热系数较高的铝合金。通常有压铸铝散热器、挤压铝散热器、冲压铝散热器。压铸铝散热器是一种压力铸造零件的技术，将液态锌铜铝合金浇注入压铸机的入料口，经压铸机压铸，铸造出事先设计模具限定的形状散热器。

Most of the LED lighting source still uses low voltage (VF = 3.2V), large current (IF = 200 - 70 000 MA) LED beads. Because of high heat, the high thermal conductivity of aluminum alloy must be used. Usually there are die-casting aluminum radiator, extruded aluminum radiator and stamping aluminum radiator. The die casting aluminum radiator is a kind of pressure casting part technology. The liquid zinc copper aluminum alloy is poured into the inlet of the die-casting machine, and the shape radiator of the pre designed mold is cast by the die-casting machine.

Most LED lighting sources still use low voltage (VF = 3). 2V), large current (IF = 200-700ma) LED lamp bead, because of high heat in the work, must use the aluminum alloy with high thermal conductivity. Usually have die-casting aluminum radiator, extruded aluminum radiator, pressed aluminum radiator. Die-casting aluminum radiator technology is a kind of pressure casting parts, poured liquid zinc copper aluminum injection into the mouth of die casting machine, the die casting machine die casting, casting out the shape of the mould qualified radiator designed.

Most LED lighting sources still use low voltage (VF = 3), 2V), large current. R. Die-casting aluminum radiator technology is a kind of pressure casting parts.