CN201582767U

CN201582767U - LED heat-dissipating device

Info

Publication number: CN201582767U
Application number: CN2010201082275U
Authority: CN
Inventors: 沈秀美
Original assignee: SHILAI HOLDINGS CO Ltd
Current assignee: SHILAI HOLDINGS CO Ltd
Priority date: 2010-01-19
Filing date: 2010-01-19
Publication date: 2010-09-15
Anticipated expiration: 2020-01-19

Abstract

The utility model discloses an LED heat-dissipating device which comprises a heat-dissipating plate contacted with the back surface of an LED light source substrate, wherein the heat-dissipating plate far from the back surface of the LED light source substrate is distributed with a plurality of heat-dissipating fins which are distributed and staggered with one another. The LED heat-dissipating device has good heat dissipation effect, improves the use stability of an LED illumination device and prolongs the service life thereof.

Description

The LED heat abstractor

Technical field

The utility model relates to a kind of LED heat abstractor.

Background technology

LED (light emitting diode) has that energy consumption is low, caloric value is lower and the advantage of long service life, and in today of global energy shortage, the above-mentioned environmental protection characteristics of LED have wide application space.But, because single chip LED luminosity deficiency, the LED lighting device generally adopts the structure of led array, can produce thus that LED lighting device heat is concentrated, local temperature is too high, and then can cause problems such as circuit control system instability, energy consumption are excessive, lamp life reduction.The work for a long time for the LED lighting device is stablized, the heat dissipation problem that solves the LED lighting device has become the high-brightness LED key in application.

Summary of the invention

The utility model purpose provides a kind of LED heat abstractor, and its good heat dissipation effect has improved the stability in use of LED lighting device and prolonged its service life.

The technical solution of the utility model is: a kind of LED heat abstractor, comprise the heat sink that contacts with the led light source substrate back, and described heat sink is distributed with some radiating fins away from the back side of led light source substrate, and described some radiating fins are in staggered distribution mutually.Radiating fin has increased the area of dissipation of heat sink, and radiating effect is better.

Further, in above-mentioned LED heat abstractor, described some radiating fins become some walking crosswise with some files to distribute, and the radiating fin of adjacent lines and adjacent column is staggeredly arranged.The radiating fin position that is each row does not line up between the radiating fin of adjacent lines with the space correspondence that is adjacent between the capable radiating fin; Equally, do not line up between the radiating fin of adjacent column yet.Such distributed architecture makes that the heat-dissipating space of each radiating fin is bigger, strengthens radiating effect.

Further, in above-mentioned LED heat abstractor, described radiating fin is upright column or the laminated structure of being located at the heat sink back side.Difform radiating fin can provide different radiating efficiencys.Each cross section of the radiating fin of this column or laminated structure is all less, becomes elongate, and the spaced apart setting of adjacent radiating fin makes air can compare smooth flowing between some radiating fins, takes away the heat on the radiating fin smoothly.

Further, in above-mentioned LED heat abstractor, described heat sink and radiating fin are the integral structure of casting forming.Its material is a heat conductivility good metal material, such as the die casting aluminium metal material.It is simple in structure, and integrally formed by die casting, and handling ease can be saved processing cost.

In LED lighting device when work,, the heat that led light source produces conducts to heat sink by substrate, and the partial heat energy on the heat sink extends and is delivered on the radiating fin, fast and ambient air carry out heat exchange and cool down.

The utility model advantage is:

1, the utility model is by distributing with the heat sink of the led light source substrate contacts heat with led light source, and also is provided with radiating fin on the heat sink, accelerated the conduction of heat and distributes.

2, more than the utility model radiating fin quantity and space is provided with, and has made things convenient for air to flow between radiating fin, has accelerated heat exchange efficiency.

3, the utility model is simple in structure, and is easy to process, and cost is low.

Description of drawings

Fig. 1 is the perspective view of the utility model first specific embodiment;

Fig. 2 is the vertical view of the utility model first specific embodiment;

Fig. 3 is the local enlarged diagram at I place among Fig. 2;

Fig. 4 is the perspective view of the utility model second specific embodiment;

Fig. 5 is the vertical view of the utility model second specific embodiment;

Fig. 6 is the local enlarged diagram at II place among Fig. 5.

Wherein: 1 heat sink; 11 radiating fins; 2 walk crosswise; 3 files.

The specific embodiment

Below in conjunction with drawings and Examples the utility model is further described:

Embodiment: to shown in Figure 6, a kind of LED heat abstractor comprises the heat sink 1 that contacts with the led light source substrate back as Fig. 1, and described heat sink 1 is distributed with some radiating fins 11 away from the back side of led light source substrate.

11 one-tenth of described some radiating fins walk crosswise 2 and file 3 distribute, the radiating fin 11 of adjacent lines and adjacent column is staggeredly arranged.

Described radiating fin 11 is upright column or the laminated structure of being located at the heat sink back side, and described column or laminated structure have level and smooth streamline profile.

Described heat sink 1 is the integral structure of casting forming with radiating fin 11.

First specific embodiment: in said structure, described radiating fin 11 is columned elongated long barred body, as shown in Figure 1 to Figure 3.

Second specific embodiment: in said structure, described radiating fin 11 is a laminated structure, and is extremely shown in Figure 6 as Fig. 4, this laminated structure cross section is the class ellipse, make laminated structure have the streamline profile, air can flow between the radiating fin 11 of a plurality of laminated structures smoothly, takes away heat.

The radiating efficiency of above-mentioned two specific embodiments is different, can be used for the LED lighting device of different radiating requirements.

The utility model good heat dissipation effect has improved the stability in use of LED lighting device and has prolonged its service life.

Claims

1. a LED heat abstractor comprises the heat sink (1) that contacts with the led light source substrate back, it is characterized in that: described heat sink (1) is distributed with the radiating fin (11) that some intervals are provided with away from the back side of led light source substrate.

2. LED heat abstractor according to claim 1 is characterized in that: described some radiating fins (11) become to walk crosswise (2) and file (3) distributes, and the radiating fin of adjacent lines and adjacent column (11) is staggeredly arranged.

3. LED heat abstractor according to claim 2 is characterized in that: described radiating fin (11) is upright column or the laminated structure of being located at the heat sink back side.

4. LED heat abstractor according to claim 1 is characterized in that: described heat sink (1) is the integral structure of casting forming with radiating fin (11).