CN201014394Y

CN201014394Y - Lighting device with heat radiation structure

Info

Publication number: CN201014394Y
Application number: CNU2007200022932U
Authority: CN
Inventors: 徐文泰; 邹积财
Original assignee: Top Union Globaltek Inc TW
Current assignee: Top Union Globaltek Inc TW
Priority date: 2007-02-28
Filing date: 2007-02-28
Publication date: 2008-01-30
Anticipated expiration: 2017-02-28

Abstract

The utility model relates to an illumination device with a radiating structure which is provided with a radiating plate and a circuit board. The radiating plate is provided with a LED body and the circuit board while an air hole is formed at the end part of the radiating plate. So, heat energy produced by the illumination of the LED body can be transferred into the radiating plate and the air hole assures the air to flow out of and to flow into the radiating plate. The heat energy can be scattered with the air, therefore, the LED body can maintain a normal working temperature and prevent aging.

Description

Lighting device with radiator structure

Technical field

The utility model is a kind of lighting device with radiator structure, and a kind of device that makes its heat radiation for light-emittingdiode when luminous is provided.

Background technology

(Light Emitting Diode LED) has power consumption and hang down and the characteristic that can send enough lights, so light-emittingdiode is used in lighting device to light-emittingdiode widely.

Yet with regard to single light-emittingdiode, its luminance shortage is used to be used as illumination, therefore, the quantity of light-emittingdiode must be increased to certain quantity, can use as illumination.

The heat energy that a plurality of light-emittingdiodes the time are produced in work, then very considerable, how efficiently radiates heat has just become an important problem.

Existing radiating mode interconnects light-emittingdiode and conductive sheet, conductive sheet interconnects with radiating piece again, the heat energy of light-emittingdiode can be passed to the radiating piece place via conductive sheet, is distributed in the air by radiating piece, and makes light-emittingdiode be dispelled the heat.

Because radiating piece is all a solid block, therefore when aforesaid thermal energy transfer radiating piece, heat energy can only be gathered in the zone that radiating piece is in contact with it, diffuse to remaining zone of radiating piece then, in this process, heat energy can be distributed in the air gradually, reaches the effect of heat radiation by this.

Yet heat energy will see through radiating piece, be distributed in the air then, because radiating piece may be because of factors such as material or thermal conductivity factors, and make heat energy in radiating piece with slow VELOCITY DIFFUSION, afterwards, be distributed in the air again, so its heat radiation function is limited, therefore can not rapidly the heat energy that conducts to the radiating piece place be distributed, so light-emittingdiode just can not dispel the heat really, and make the light-emittingdiode accelerated ageing, so the shortcoming that has it to use.

The utility model content

Because the inconvenience on the aforesaid prior art, a kind of lighting device with radiator structure of the utility model design provides a kind of and makes its heat radiation for light-emittingdiode when luminous, uses and avoids light-emittingdiode because of the overheated device that wears out that produces.

For reaching above-mentioned creation purpose, the technological means that the utility model adopted is a kind of lighting device with radiator structure of design, it has heat sink and circuit board, one side of heat sink is provided with light-emittingdiode, the end of heat sink is formed with the wind hole of running through, circuit board is located at the another side of heat sink, and circuit board is electrically connected mutually with light-emittingdiode.

As above-mentioned structure, when light-emittingdiode during because of the luminous heat energy that produces, this heat energy can conduct to the heat sink place, and flow out when flowing into the wind hole by air, and make this heat energy also can distribute thereupon, so light-emittingdiode just can be maintained at normal operating temperature, and avoids producing aging situation.

As mentioned above, be the heat sink of engraving the sky shape and can make that heat energy was distributed in the air in the very first time, so light-emittingdiode just is able to rapid heat radiation.

Description of drawings

Fig. 1 is the stereo appearance figure of the utility model first embodiment.

Fig. 2 is the plan view from above of the utility model first embodiment.

Fig. 3 is the stereo appearance figure of the utility model second embodiment.

Fig. 4 is the stereo appearance figure of the utility model the 3rd embodiment.

The specific embodiment

The utility model is a kind of lighting device with radiator structure, please cooperate with reference to shown in the figure 1,2, and it is the utility model first embodiment, and it has heat sink 10 and circuit board 13;

Heat sink 10, the one side forms porose (not shown), and the place, hole is provided with light-emittingdiode 11, is formed with the wind hole 12 of running through heat sink 10 in the end, and heat sink 10 is made by the high material of thermal conductivity factor;

Circuit board 13, it is located at the another side (this side is away from the side of light-emittingdiode 11) of heat sink 10, and circuit board 13 is electrically connected mutually with light-emittingdiode 11.

When light-emittingdiode 11 was luminous, the heat energy that it produced can conduct to heat sink 10 places, and flowed out when flowing into wind hole 12 when air, and aforesaid heat energy also can distribute thereupon, makes light-emittingdiode 11 be maintained in normal operating temperature by this.

Because heat sink 10 inside are located in wind hole 12, therefore heat sink 10 is and engraves the sky shape, make heat sink 10 outer walls and wind hole 12 all be formed with area of dissipation, so when thermal energy conduction during to heat sink 10 places, heat energy can be distributed in the air in the very first time, and reach the effect of heat radiation, so heat sink 10 can be distributed with the heat energy that will conduct to heat sink 10 places rapidly.

Please cooperate with reference to shown in Figure 3, it is the utility model second embodiment, and it has conductive plate 20, two heat sinks 24 and circuit board 26;

Conductive plate 20, it has soleplate 21, one end of soleplate 21 and be connected with bending connecting plate 22 upwards with respect to its top end face, and make the section of conductive plate 20 L-shaped, the bottom face of soleplate 21 forms porose (not shown), the place, hole is provided with light-emittingdiode 23, and conductive plate 20 is made by the high material of thermal conductivity factor;

Each heat sink 24, it is attached at the two relative side place of connecting plate 22 respectively, and the end of each heat sink 24 is formed with the wind hole of running through 25;

Circuit board 26, it is arranged at the top end face place of soleplate 21, and is electrically connected mutually with light-emittingdiode 23.

When light-emittingdiode 23 because of luminous when producing heat energy, this heat energy can be passed to heat sink 24 via conductive plate 20, and by 25 flowing out and leaked-in airs in the wind hole, and makes that this heat energy is distributed.

Please cooperate with reference to shown in Figure 4, it is the utility model the 3rd embodiment, and it has conductive plate 30, several heat sinks 35 and circuit board 37;

Conductive plate 30, it has soleplate 31, and the top end face of soleplate 31 is connected with several connecting plates 32 outstanding and space up, and the bottom face of soleplate 31 forms porose (not shown), and the place, hole is provided with light-emittingdiode 33;

Each heat sink 34, it is arranged between the two adjacent connecting plates 32, and the side of the side of each heat sink 34 and connecting plate 32 closely attaches, the end of each heat sink 34 is formed with the wind hole of running through 35, be formed with fresh air inlet 36 in the side of each heat sink 34 and adjacent to its place, bottom in addition, fresh air inlet 36 communicates with wind hole 35;

Circuit board 37, it is arranged at the top end face place of soleplate 31, and is electrically connected mutually with light-emittingdiode 33.

The heat energy that light-emittingdiode 33 is produced can be passed to heat sink 34 places via conductive plate 30, and air can be flowed in the wind hole 35 by fresh air inlet 36 places, is flowed out by wind hole 35 again, by the flowing to and flow out of air, and light-emittingdiode 33 is dispelled the heat.

Comprehensive above institute says, being the

heat sink

10,24,34 of engraving the sky shape can make light-

emittingdiode

11,23,33 heat energy that produced to be distributed in the air in the very first time, so light-

emittingdiode

11,23,33 just is maintained at normal operating temperature, and can avoid it because of the overheated situation about wearing out that produces.

The main element symbol description

10 heat sinks, 11 light-emittingdiodes

12 wind holes, 13 circuit boards

20 conductive plates, 21 soleplates

22 connecting plates, 23 light-emittingdiodes

24 heat sinks, 25 wind holes

26 circuit boards, 30 conductive plates

31 soleplates, 32 connecting plates

33 light-emittingdiodes

34 heat sinks, 35 wind holes

36 fresh air inlets, 37 circuit boards

Claims

1. lighting device with radiator structure is characterized in that having:

Heat sink, the one side is provided with light-emittingdiode, and the end of heat sink is formed with the wind hole of running through;

Circuit board, it is located at the another side of heat sink, and circuit board is electrically connected mutually with light-emittingdiode.

2. the lighting device with radiator structure as claimed in claim 1 is characterized in that: the side of heat sink is formed with can be for the hole of light-emittingdiode setting.

3. lighting device with radiator structure is characterized in that having:

Conductive plate, it has soleplate, and the top end face of soleplate is connected with connecting plate, and the bottom face of soleplate is provided with light-emittingdiode;

Two heat sinks, each heat sink are attached at the two relative side place of connecting plate respectively, and the end of each heat sink is formed with the wind hole of running through;

Circuit board, it is arranged at the top end face place of soleplate, and is electrically connected mutually with light-emittingdiode.

4. the lighting device with radiator structure as claimed in claim 3 is characterized in that: the bottom face of soleplate is formed with can be for the hole of light-emittingdiode setting.

5. the lighting device with radiator structure as claimed in claim 4 is characterized in that: the section of conductive plate is L-shaped.

6. lighting device with radiator structure is characterized in that having:

Conductive plate, it has soleplate, and the top end face of soleplate is connected with several connecting plates outstanding and space up, and the bottom face of soleplate is provided with light-emittingdiode;

Several heat sinks, each heat sink are arranged between the two adjacent connecting plates, and the side of the side of each heat sink and connecting plate closely attaches, and the end of each heat sink is formed with the wind hole of running through;

7. the lighting device with radiator structure as claimed in claim 6 is characterized in that: the side of each heat sink and be formed with fresh air inlet adjacent to place, its bottom, fresh air inlet communicates with the wind hole.

8. the lighting device with radiator structure as claimed in claim 7 is characterized in that: the bottom face of soleplate is formed with can be for the hole of light-emittingdiode setting.