CN207814975U - A kind of liquid cooling high-efficiency heat radiating LED bulb lamp - Google Patents

Abstract

The utility model discloses a kind of liquid cooling high-efficiency heat radiating LED bulb lamps, including lamp cap, plastic shell and lampshade, the lamp cap is fixedly connected with plastic shell upper end, the lampshade is connect with plastic shell lower thread, the plastic shell is in hollow structure, driver is disposed with inside it from top to bottom, radiator and light source board, the radiator is cylindrical, its bottom is lower oil groove, top is finishing bathtray, it is lower to be connected between oil groove and finishing bathtray by being looped around the cooling fin at its edge, the finishing bathtray, inner hollow and the interconnection of lower oil groove and cooling fin, its interior zone is filled with conduction oil.The utility model has the advantages that：（1）Heat dissipation effect is excellent；（2）LED light service life is long.

Description

A kind of liquid cooling high-efficiency heat radiating LED bulb lamp

Technical field

The utility model is related to a kind of lamps and lanterns, more particularly, to a kind of high-efficiency heat radiating LED bulb lamp.

Background technology

LED was also known as light emitting diode (Light Emitting Diode), belongs to semiconductor subassembly, from Americanologist in 1962 With electric corporation develop the whole world the first can the red-light LED of practical application start, LED has marched toward the full-color epoch so far.LED's Principle of luminosity is the P-N diode being combined into the N-type semiconductor containing electronics by containing the P-type semiconductor of electric hole in simple terms, P-N diode both ends add forward bias voltage drop, when an electric current passes through it, electrons and holes can release energy when flowing to joint surface engagement and It shines.

LED can generate thermal energy during use or running and temperature rises phenomenon, such as all electronic components Fruit ignores heat dissipation problem, the result that LED will be caused to do sth. in advance because of high temperature to burn.The design of LED lamp is compared with conventional lamp complexity, packet Containing optics, mechanism, electronics and heat dissipation, wherein " heat dissipation " is even more important, because the conversion ratio of high power LED lamp only has at present 20% can be converted into light, remaining 80% can be converted to heat, if cannot will be unable to reach LED light source by except heat derives lamps and lanterns The 50000 hour service life declared, while heat can influence the luminous efficiency of LED, the tragic situation for causing serious light decay and lamps and lanterns to be damaged.

The luminous efficiency of LED and service life and operating temperature are closely bound up, and inverse relation is presented, is sent out according to U.S. CREE Alleged by the LED life report of cloth, temperature often declines 10 DEG C of service life will 2 times of extension and luminous flux promotion 3% ~ 8%.Due to high power The development of LED technology so that LED lamp faces the harsh challenge of heat management and heat dissipation design, because temperature raising not only can It causes brightness to decline, the deterioration of light fitting body and encapsulating material but will be accelerated when temperature is more than 100° centigrade.Therefore, in addition to Outside the heat dissipation technology of LED package assemblings itself, the heat dissipation of LED lamp and heat conductive design are even more the most high point for maintaining lamp life Key.

Such as a kind of a kind of LED radiator disclosed in Chinese patent literature, Authorization Notice No. CN 204084277 U, the utility model disclose a kind of LED radiator, including shape is in the radiator body of hollow cylindrical, is dissipated Several radiating fins are evenly arranged on hot device body outer surface, radiating fin is arc-shaped on cross section, radiating fin pair It answers the other side of radiator body to be provided with the reinforcement structure for concatenating several radiating fins, is formed between every adjacent two radiating fin Spiral duct is provided through the air holes of spiral duct in reinforcement structure.A kind of LED of being designed to provide of the utility model dissipates Hot device, the LED radiator structural strength is high, is axially formed spiral wind in radiator, air flowing, perfect heat-dissipating is accelerated to dissipate Good in thermal property, rate of heat dispation are fast.But there is also its shortcomings for the utility model, such as its radiator and the hair in LED light Thermal element is not connected directly, and heat dissipation is generates the flowing of air by the convection current of heat, without actively generating cross-ventilation Device, therefore its radiating efficiency is relatively low.

Utility model content

The utility model be in order to overcome in the prior art LED light radiating efficiency it is low, LED light service life is low to ask Topic provides a kind of reinforcement LED light heat dissipation effect, increases a kind of high-efficiency heat radiating LED bulb lamp of LED light service life.

To achieve the goals above, the utility model uses following technical scheme：

A kind of liquid cooling high-efficiency heat radiating LED bulb lamp, including lamp cap, plastic shell and lampshade, outside the lamp cap and plastic Shell upper end is fixedly connected, and the lampshade is connect with plastic shell lower thread, and the plastic shell is in hollow structure, in Portion is disposed with driver, radiator and light source board from top to bottom, and the radiator is cylindrical, and bottom is lower oil Slot, top are finishing bathtray, lower to be connected between oil groove and finishing bathtray by being looped around the cooling fin at its edge, the finishing bathtray, Inner hollow and the interconnection of lower oil groove and cooling fin, interior zone are filled with conduction oil.

Radiator is directly fitted with light source board and is connect by the utility model so that the heat generated on light source board can be timely It is distributed by radiator, liquid cooling technology is also used in the utility model, using conduction oil by the light source board of lower end On heat absorption so that conduction oil up and down generate the temperature difference, to which convection current occur, by cooling fin by heat distribute from And achieve the purpose that reduce LED light raw sheet temperature, to increase the service life of LED light.

Preferably, being additionally provided with a cavity in the middle part of the radiator, a heat conduction is additionally provided with inside the cavity Fan.Setting cavity is simultaneously internally provided with heat conduction fan in cavity, and the air inside radiator is enabled to pass through heat conduction fan Movement and generate cross-ventilation so that the heat dissipation effect of radiator greatly promotes.

Preferably, forming heat dissipation wind channel between cooling fin adjacent in the radiator.Heat dissipation wind channel is arranged can It ventilates more smooth so that heat can be distributed preferably.

Preferably, being additionally provided with thermal baffle between the radiator and driver.Setting thermal baffle enables to The hot wind formed in radiator will not make the temperature rise of driver, to ensure that the normal work of driver.

Preferably, the thermal baffle bottom is equipped with wind loop.The gas that wind loop enables to fan to generate is set Stream will not flow out at the top of the radiator, can only be flowed out from heat dissipation wind channel, to achieve the effect that effectively to radiate.

Preferably, the size of the wind loop and the size of cavity match.

Preferably, the plastic shell is equipped with the thermal vias of the strip of several circular plastic shells.If Setting thermal vias contributes to the air circulation of plastic enclosure, so as to effectively enhance heat dissipation effect.

Therefore, the utility model has the advantages that：（1）Heat dissipation effect is excellent；（2）LED light service life is long.

Description of the drawings

Fig. 1 is a kind of structural schematic diagram of the utility model.

Fig. 2 is the structural schematic diagram of the radiator of the utility model.

Fig. 3 be in this practical new Fig. 2 aa to cross-sectional view.

Fig. 4 is the vertical view of the radiator of the utility model.

Fig. 5 is the upward view of the utility model thermal baffle.

Fig. 6 is the structural schematic diagram of the utility model plastic shell.

Wherein：5 light source board of lamp cap 1 plastic shell, 2 driver, 3 thermal baffle, 4 radiator, 6 lampshade 7 21 wind loop of thermal vias, 41 times oil grooves, 51 finishing bathtray, 52 cooling fin, 53 cavity, 54 heat conduction fan 55 radiates Air duct 56.

Specific implementation mode

The utility model is further described with specific implementation mode below in conjunction with the accompanying drawings.

In embodiment as shown in figures 1 to 6, a kind of liquid cooling high-efficiency heat radiating LED bulb lamp, including lamp cap 1,2 and of plastic shell Lampshade 7, the lamp cap 1 are fixedly connected with 2 upper end of plastic shell, and the lampshade 7 is connect with 2 lower thread of plastic shell, The plastic shell 2 is in hollow structure, is equipped with the thermal vias 21 of the strip of several circular plastic shells 2, in Portion is disposed with driver 3, radiator 5 and light source board 6 from top to bottom, and the radiator 5 is cylindrical, and bottom is Lower oil groove 51, top are finishing bathtray 52, are connected between lower oil groove 51 and finishing bathtray 52 by being looped around the cooling fin 53 at its edge, Between adjacent cooling fin 53 formed heat dissipation wind channel 56, the finishing bathtray 52, lower oil groove 51 and cooling fin 53 inner hollow And be connected with each other, interior zone is filled with conduction oil, and 5 middle part of radiator is additionally provided with a cavity 54, and described is recessed It is additionally provided with a heat conduction fan 55 inside chamber 54, thermal baffle 4, heat-insulated gear are additionally provided between the radiator 5 and driver 3 4 bottom of plate is equipped with wind loop 41, and the size and the size of cavity 54 of the wind loop 41 match.

Claims (7)

1. a kind of liquid cooling high-efficiency heat radiating LED bulb lamp, characterized in that including lamp cap（1）, plastic shell（2）And lampshade（7）, It is characterized in, the lamp cap（1）With plastic shell（2）Upper end is fixedly connected, the lampshade（7）With plastic shell（2）Lower end It is threadedly coupled, the plastic shell（2）In hollow structure, inside be disposed with driver from top to bottom（3）, radiator （5）And light source board（6）, the radiator（5）Cylindrical, bottom is lower oil groove（51）, top is finishing bathtray（52）, Lower oil groove（51）With finishing bathtray（52）Between by being looped around the cooling fin at its edge（53）Connection, the finishing bathtray（52）、 Lower oil groove（51）With cooling fin（53）Inner hollow and interconnection, interior zone be filled with conduction oil.

2. a kind of liquid cooling high-efficiency heat radiating LED bulb lamp according to claim 1, characterized in that the radiator（5）In Portion is additionally provided with a cavity（54）, the cavity（54）Inside is additionally provided with a heat conduction fan（55）.

3. a kind of liquid cooling high-efficiency heat radiating LED bulb lamp according to claim 1 or 2, characterized in that the radiator （5）In adjacent cooling fin（53）Between form heat dissipation wind channel（56）.

4. a kind of liquid cooling high-efficiency heat radiating LED bulb lamp according to claim 1, characterized in that the radiator（5）With Driver（3）Between be additionally provided with thermal baffle（4）.

5. a kind of liquid cooling high-efficiency heat radiating LED bulb lamp according to claim 4, characterized in that the thermal baffle（4） Bottom is equipped with wind loop（41）.

6. a kind of liquid cooling high-efficiency heat radiating LED bulb lamp according to claim 5, characterized in that the wind loop（41） Size and cavity（54）Size match.

7. a kind of liquid cooling high-efficiency heat radiating LED bulb lamp according to claim 1, characterized in that the plastic shell（2） It is equipped with several circular plastic shells（2）Strip thermal vias（21）.