CN200982610Y - Light-emitting diode heat-radiation module - Google Patents

Abstract

A heat dissipation modular for light-emitting diodes comprises a circuit board, at least one light-emitting diode, at least one heat-conductive layer, and a heat dissipation block, wherein an opening is provided for the circuit board, and the light-emitting diode bestrides above the opening of the circuit board. At least one heat-conductive layer is arranged on the bottom of the light-emitting diode, and the heat-conductive layer is associated with the heat dissipation block through the opening of the circuit. Due to the structure described above, the utility model can greatly improves heat dissipation efficiency of the light-emitting diode.

Description

Light emitting diode radiating module

Technical field

The utility model relates to a kind of radiating module of light emitting diode, and the radiating module of this light emitting diode can promote radiating efficiency, is applicable to the light emitting diode or the similar structure of high brightness or super brightness.

Background technology

The application surface of LED constantly enlarges now, the indicator lamp and the display unit that generally are used at present information, communication and consumption electronic products, as market segments such as LCD TV, mobile phone, PDA, GPS display floater and illuminations, also therefore the input power of led chip must constantly improve, but the phenomenon that continues the heating that accumulation causes of heat will reduce luminous efficiency and quicken the LED element and itself heats, and the formed stress of its warming effect will cause the LED dysplasia and damage; So, no matter be to produce each manufacturer of light emitting diode that mobile phone is used or lighting apparatus is used, generally need to solve heat dissipation problem, especially be applied in the light emitting diode of high brightness or super brightness lighting apparatus, more need face the problem of the qualitative change or the life-span minimizing of the high heat material that causes.

See also Fig. 4, be the light emitting diode radiating module of prior art, mainly below light emitting diode 1 in conjunction with a heat-conducting layer 4, these heat-conducting layer 4 belows are combined circuit plate 2 again, this circuit board 2 is bonded with an aluminium sheet 3, can connect a radiating block 5 again 3 times in this aluminium sheet, in order to quickening radiating rate.

Yet, when above-mentioned light emitting diode 1 dispels the heat, heat needs to see through heat-conducting layer 4 earlier and conducts to circuit board 2, conduct to the radiating block 5 of its below again via circuit board 2 and aluminium sheet 3, the conduction of forming and be unfavorable for heat because of the material of circuit board 2, having slowed down hot conduction so intercept, made rate of heat dispation reduce significantly, is to be its main defective.

Because the problems referred to above, the inventor wishes to provide a kind of light emitting diode radiating module that promotes LED heat radiating efficient, and consumption is popular to be used to provide, and desires to grind the motivation of wound for the utility model.

Summary of the invention

Main purpose of the present utility model is to provide a kind of light emitting diode radiating module that promotes the radiating efficiency of light emitting diode.

For reaching above-mentioned purpose, the technological means that the utility model adopts is as follows:

A kind of light emitting diode radiating module, comprise: a circuit board, at least one light emitting diode, at least one heat-conducting layer and a radiating block, wherein this circuit board is provided with perforate, this light emitting diode is striden the perforate top of being located at this circuit board, this at least one heat-conducting layer is located at light emitting diode bottom, this heat-conducting layer see through circuit board perforate and in conjunction with a radiating block.

By above-mentioned technical characterictic, the beneficial effects of the utility model show as:

The utility model is provided with perforate because of circuit board, so utilize many supports these light emitting diodes to be welded in the perforate both sides of circuit board, so that this light emitting diode is striden the perforate top of being located at this circuit board, and the connecting support of each light emitting diode is interior in conjunction with a recessed cup, this recessed cup bottom surface is in conjunction with the heat-conducting layer of a circle, utilize this heat-conducting layer as heat transfer medium, thermal source in the light emitting diode is conducted out, this heat-conducting layer below is in conjunction with a radiating block that is provided with the multi-disc fin, this tool radiating block of area of dissipation on a large scale more helps thermal source is discharged fast, and this group radiating block and air contact area are very big, can reach the temperature of rapid this light emitting diode of reduction; Wherein,, lacked the iris action of circuit board, the radiating efficiency of light emitting diode is significantly promoted because this group radiating block directly is attached at the heat-conducting layer below.

Description of drawings

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

Fig. 2 is the element exploded view of the utility model embodiment.

Fig. 3 be the utility model embodiment in conjunction with generalized section.

Fig. 4 be commonly use light emitting diode radiating module in conjunction with generalized section.

Symbol description among the figure

1, light emitting diode

2, circuit board

3, aluminium sheet

4, heat-conducting layer

5, radiating block

10, circuit board

11, perforate

12, connecting circuit

20, light emitting diode

21, support

22, connecting support

23, recessed cup

30, heat-conducting layer

40, radiating block

The specific embodiment

See also Fig. 1～Fig. 3, light emitting diode radiating module of the present utility model, comprise: a circuit board 10, at least one light emitting diode 20, an at least one heat-conducting layer 30 and a radiating block 40, wherein this circuit board 10 is provided with perforate 11, and be laid with a plurality of connecting circuits 12 in perforate 11 peripheries, at least one light emitting diode 20 is striden the top of being located at perforate 11, wherein this light emitting diode 20 is provided with a connecting support 22 and many supports 21, this at least one heat-conducting layer 30 can cooperate perforate 11 shapes of circuit board 10 and establish, or cooperate connecting support 22 shapes of light emitting diode 20 and establish, present embodiment cooperates connecting support 22 shapes of light emitting diode 20 and is made as circle, simultaneously below this heat-conducting layer 30 again in conjunction with a radiating block 40 (also can adopt the radiating block 40 of other form during actual the use) that is provided with the multi-disc radiating fin.

When it is applied to the light emitting diode 20 of high brightness, the support 21 of this light emitting diode 20 must be welded on the connecting circuit 12 of this circuit board 10, be provided with three light emitting diodes 20 in the present embodiment, lay those light emitting diodes 20 according to the connecting circuit on the circuit board 10 12, in order to those light emitting diodes 20 are electrically connected, because of circuit board 10 is provided with perforate 11, so utilize many supports 21 these light emitting diodes 20 to be welded in perforate 11 both sides of circuit board 10, so that this light emitting diode 20 is striden perforate 11 tops of being located at this circuit board 10, and the connecting support 22 of each light emitting diode 20 is interior in conjunction with a recessed cup 23, these recessed cup 23 bottom surfaces are in conjunction with the heat-conducting layer 30 of a circle, utilize this heat-conducting layer 30 as heat transfer medium, thermal source in the light emitting diode 20 is conducted out, this heat-conducting layer 30 can use fin or thermal grease when practical application, again in heat-conducting layer 30 belows in conjunction with a radiating block 40 that is provided with the multi-disc fin, this tool radiating block 40 of area of dissipation on a large scale more helps thermal source is discharged fast, and it is very big with the air contact area to organize radiating block 40, can reach the temperature of this light emitting diode 20 of rapid reduction; Wherein, because of this group radiating block 40 directly is attached at heat-conducting layer 30 belows, lacked the iris action of circuit board 10, the radiating efficiency of this light emitting diode 20 will significantly promote.

In sum, the utility model really can reach the intended purposes of utility model, a kind of light emitting diode radiating module is provided, utilize circuit board to be provided with the design of perforate, make the high brightness LED radiating module significantly improve radiating efficiency, have practical value undoubtedly, propose patent application in accordance with the law.

The above only is preferred embodiment of the present utility model, and when can not be in order to limit the enforceable scope of the utility model, all habit in the personage of this industry obviously can be done to change and modification, all should be considered as not breaking away from flesh and blood of the present utility model.

Claims (3)

1, a kind of light emitting diode radiating module, comprise: a circuit board, at least one light emitting diode, at least one heat-conducting layer and a radiating block, it is characterized in that, this circuit board is provided with perforate, this light emitting diode is striden the perforate top of being located at this circuit board, this at least one heat-conducting layer is located at light emitting diode bottom, this heat-conducting layer see through circuit board perforate and in conjunction with a radiating block.

2, light emitting diode radiating module as claimed in claim 1 is characterized in that, this at least one heat-conducting layer is a fin.

3, light emitting diode radiating module as claimed in claim 1 is characterized in that, this at least one heat-conducting layer is a thermal grease.

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