CN201779623U

CN201779623U - LED lamp radiator structure with micro-nano metal and graphite

Info

Publication number: CN201779623U
Application number: CN2010202837022U
Authority: CN
Inventors: 林振孟; 李曼君; 曾宪中; 郑泽明
Original assignee: Individual
Current assignee: Individual
Priority date: 2010-08-06
Filing date: 2010-08-06
Publication date: 2011-03-30
Anticipated expiration: 2020-08-06

Abstract

An LED lamp radiator structure with micro-nano metal and graphite comprises an LED lamp panel and a radiating fin seat. A heat conducting layer, an insulating layer and a circuit board are sequentially combined to form the LED lamp panel, at least one LED lamp is attached onto the circuit board, and a plurality of projecting posts are arranged on the heat conducting layer. The radiating fin seat is provided with a plurality of radiating fins, and a joint surface arranged in the center of the radiating fin seat is provided with a plurality of grooves corresponding to the projecting posts of the LED lamp panel. The projecting posts is embedded in the grooves so that the LED lamp panel is combined on the radiating fin seat, accordingly the contact area of the LED lamp panel with the radiating fin seat is increased, and heat can be rapidly transmitted from the LED lamp panel to the radiating fins so as to be dissipated.

Description

The LED lamp radiator structure of little how rice metal of tool and graphite

Technical field

The utility model provides a kind of LED lamp radiator structure, refers to its technical LED lamp radiator structure with little how rice metal of the tool that increases contact area and graphite of combining that provides a kind of by projection and groove especially.

Background technology

Press, light-emittingdiode (LED) element is because power consumption is few, volume is little and long service life, be used at present the application such as indicator lamp, Backlight For Liquid Crystal Display Panels, picture and text display screen and automobile the 3rd brake light of electrical home appliances widely, and, therefore can in many application, replace traditional incandescent lamp bulb with light emitting diode element in recent years owing to successfully developed as AlGaInP (AlGaInP) and aluminum indium gallium nitride light-emittingdiode materials such as (AlGaInN).

Yet, the input power of high-power light emitting diode only has 15～20% can convert light at present, and all the other 80～85% are transformed into heat, if these heat fail in time to be discharged outside to, can make light-emittingdiode crystal grain boundary temperature too high, and reduce luminous efficiency and life-span.

Therefore, the heat energy that produces when using, and then promote the service life and the luminous efficiency of light-emittingdiode for effective dissipation light-emittingdiode, but the light-emittingdiode heat radiation module that how to design efficiently radiates heat is an important key.

See also Fig. 5, it is general LED heat radiation module decomposing schematic representation, normally be incorporated into and reach the heat energy that fast LED lamp 50 is produced on the heat radiating fin bar 52 and see through heat radiating fin bar 52 and dispel the heat with the circuit board 51 of LED lamp 50, but because circuit board 51 is limited with the contact area of heat radiating fin bar 52, so heat energy will be run into bottleneck by circuit board 51 guiding heat radiating fin bars 52.

Summary of the invention

The purpose of this utility model is, the LED lamp radiator structure of little how rice metal of a kind of tool and graphite is provided, and it improves area of dissipation, accelerates radiating rate, thereby effectively reduces temperature, raising service life and luminous efficiency.

For achieving the above object, the utility model discloses the LED lamp radiator structure of little how rice metal of a kind of tool and graphite, it is characterized in that comprising:

By a heat-conducting layer, an insulating barrier and a circuit board be combined into, at least one LED lamp is attached on this circuit board in regular turn for one LED lamp plate, this LED lamp plate, then is provided with a plurality of outer projections of this LED lamp plate that protrude on this heat-conducting layer;

One heat radiating fin bar, this heat radiating fin bar has a plurality of radiating fins and central authorities have a composition surface, and is chimeric so that this LED lamp plate is incorporated into the groove that increases the contact area of this LED lamp plate and this heat radiating fin bar on this heat radiating fin bar and heat is passed to fast heat radiation person on a plurality of these radiating fins from this LED lamp plate thereby this composition surface is provided with a plurality of and this projection corresponding with a plurality of these projections of this LED lamp plate.

Wherein, between this composition surface of the heat-conducting layer of this LED lamp plate and this heat radiating fin bar, comprise that the chimeric place of plane engagement place and this projection and this groove is provided with heat-conducting cream.

Wherein, this heat radiating fin bar and this heat-conducting layer mix afterwards ejection formation by powdered graphite, resin emulsion and make with a little how rice metal dust.

Wherein, the LED lamp radiator structure of little how rice metal of this tool and graphite is in conjunction with a lampshade.

Pass through said structure, the LED lamp radiator structure of little how rice metal of tool of the present utility model and graphite, see through the chimeric of a plurality of projections and a plurality of grooves, form vast contact area with the heat radiating fin bar, and reach quick heat radiating, avoid light-emittingdiode crystal grain boundary temperature too high by this, and increase luminous efficiency and life-span.

Description of drawings

Fig. 1: the three-dimensional exploded view of the utility model one embodiment.

Fig. 2: the LED lamp plate cutaway view of the utility model one embodiment.

Fig. 3: the LED lamp plate of the utility model one embodiment combines profile with the heat radiating fin bar.

Fig. 4: the stereo appearance figure of the utility model one embodiment.

Fig. 5: known LED heat radiation module decomposing schematic representation.

The specific embodiment

Consult Fig. 1 to shown in Figure 4, the utility model provides the LED lamp radiator structure of little how rice metal of a kind of tool and graphite, comprising:

By heat-conducting layer 11, insulating barrier 12 and circuit board 13 be combined intos, at least one LED lamp 131 is attached on this circuit board 13, then is provided with a plurality of projections 111 on this heat-conducting layer 11 and protrudes in outside this LED lamp plate 10 in regular turn for one LED lamp plate 10, this LED lamp plate 10;

One heat radiating fin bar 20, this heat radiating fin bar 20 has a plurality of radiating fins 21 and central authorities have a composition surface 22, this composition surface 22 is provided with a plurality of grooves 221 corresponding with a plurality of projections 111 of this LED lamp plate 10, see through the chimeric of this projection 111 and this groove 221, this LED lamp plate 10 is incorporated on this heat radiating fin bar 20, increase the contact area of this LED lamp plate 10 and this heat radiating fin bar 20 by this, and heat is passed to radiating fin 21 heat radiations fast from this LED lamp plate 10.

Wherein, this insulating barrier 12 can prevent that the electric current after circuit board 13 energisings from flowing to heat-conducting layer 11 formation short circuits (heat-conducting layer 11 may be conductive materials such as metal or graphite).

Wherein, between the composition surface 22 of the heat-conducting layer 11 of this LED lamp plate 10 and this heat radiating fin bar 20, comprise promptly that the plane engagement place also comprises between the chimeric place of this projection 111 and this groove 221 to be provided with heat-conducting cream 30.

Wherein, this heat radiating fin bar 20 and this heat-conducting layer 11 can by powdered graphite, resin emulsion with little how a rice metal dust mix the back ejection formation makes, and powdered graphite: resin emulsion: the percentage by weight of little how meter metal dust is 86-94%: 3-7%: 3-7%.

Wherein, above-mentioned resin emulsion is polyvinyl acetate latex or allyl resin.

It is wherein, above-mentioned that little how a rice metal dust is alundum (Al (Al ₂O ₃).

Wherein, little how rice metal of this tool and graphite LED lamp radiator structure can tool be attractive in appearance in conjunction with a lampshade 40.

Claims

1. the LED lamp radiator structure of little how rice metal of a tool and graphite is characterized in that comprising:

2. the LED lamp radiator structure of little how rice metal of tool as claimed in claim 1 and graphite, it is characterized in that, between this composition surface of the heat-conducting layer of this LED lamp plate and this heat radiating fin bar, comprise that the chimeric place of plane engagement place and this projection and this groove is provided with heat-conducting cream.

3. the LED lamp radiator structure of little how rice metal of tool as claimed in claim 1 and graphite is characterized in that, this heat radiating fin bar and this heat-conducting layer mix afterwards ejection formation by powdered graphite, resin emulsion and make with a little how meter metal dust.

4. the LED lamp radiator structure of little how rice metal of tool as claimed in claim 1 and graphite is characterized in that, the LED lamp radiator structure of little how rice metal of this tool and graphite is in conjunction with a lampshade.