CN203147461U

CN203147461U - LED track lamp

Info

Publication number: CN203147461U
Application number: CN2012206763741U
Authority: CN
Inventors: 诸建平; 吴祖通; 张立
Original assignee: ZHEJIANG GEMCORE TECHNOLOGY Co Ltd
Current assignee: Focused Photonics Hangzhou Inc
Priority date: 2012-12-10
Filing date: 2012-12-10
Publication date: 2013-08-21
Anticipated expiration: 2022-12-10

Abstract

The utility model discloses an LED track lamp, which comprises an LED light source, a radiating fin component, an upper housing cover, a lower housing cover and a face cover, and is characterized in that the radiating fin component is formed through mutually stacking a plurality of radiating fins, and each radiating fin is provided with a notch formed in the cross section; the cross sections of the radiating fins are combined together to form a cavity with a heat pipe therein; and an LED light source baseplate is in direct contact with the cross sections of the radiating fins and the surface of the heat pipe. The LED track lamp has the benefits of good radiating performance, light structure, uniform shining and the like, and can be widely applied in the fields of indoor local lighting, decorative lighting and the like.

Description

The LED track lamp

Technical field

The utility model relates to a kind of lighting, and especially a kind of employing led light source utilizes heat pipe, fin to dispel the heat simultaneously, the track lamp that structure is slim and graceful.

Background technology

Light emitting diode (LED) as internationally recognized the 4th generation green illumination light source, have distinct advantages such as energy-saving and environmental protection, long service life, light efficiency height, radiationless, shock resistance.In today of global energy growing tension, areas such as the U.S., European Union, Japan and country have released LED semiconductor lighting engineering project one after another, China had also released " national semiconductor lighting engineering " in 2003, the application of quickening guiding and popularization LED illumination and universal.Under highly energy-consuming light fixtures such as ordinary incandescent lamp are forbidden post sales policy background, energy-efficient LED light fixture will welcome the vast market space.

The LED track lamp also is track shot-light, slide rail shot-light, is a kind of in the LED lighting, mainly is installed on track, ceiling or the wall, carries out the shot-light of integral body or local accent light.The LED track lamp structure of Xiao Shouing mainly is by led light source being fixed on the metal heat sink, realizing the biography heat radiation of led light source in the market.Number be in the track lamp patent of CN201836684U at Granted publication, disclose a kind of LED track lamp, it includes metal back cover, metal tube, metal substrate, LED area source, LED power supply, metal heat sink, LED lens, metal cover.Wherein, metal back cover, metal tube and metal cover are enclosed the tubular container of sealing, and metal substrate, LED area source, LED power supply, metal heat sink and LED lens place in the described tubular container; The LED area source be fixed on the metal substrate and the exiting surface of LED area source towards LED lens and metal cover, the LED power supply is electrically connected with the LED area source, metal heat sink and metal substrate thermo-contact, the LED lens are transparent exiting surface in the middle of the metal cover between LED area source and metal cover.Beneficial effect is: adopted area source as illuminator, and at the exiting surface of track lamp the LED lens have been set, the optic angle degree that light source is sent is wider, more even, softer and better illuminating effect arranged.

But in the application process of reality, also exist some deficiency: metal back cover, metal tube and metal face shield are enclosed the tubular container of sealing on the one hand, inner LED area source, metal substrate and metal heat sink are difficult to and the external world carries out cross-ventilation, have reduced the radiating efficiency of whole lamp; On the other hand, the LED power supply is placed in the tubular container of sealing as heat generating components, and long-term use will cause temperature to rise, thereby has influence on the stability of power supply and whole lamp; On the other hand, put in order lamp and adopt metal material to make, adopted metal heat sink, the weight of whole lamp is significantly improved, the installation of light fixture track and use have also been brought certain inconvenience.

The utility model content

At the deficiency that above-mentioned prior art exists, the utility model provides that a kind of heat dispersion is good, structure is slim and graceful, luminous uniform New LED track lamp.

To achieve these goals, technical solution adopted in the utility model is:

The LED track lamp, comprise led light source, heat sink assembly, case top lid, housing lower cover and cover, it is characterized in that, described heat sink assembly by multi-disc fin mutual superposition together, the fin cross section is provided with notch, the cross section of multi-disc fin forms a cavity together, and heat pipe is arranged in this cavity, and the led light source substrate directly is contacted with described fin cross section and heat pipe surface.

Described fin is vertically to distribute.

Be provided with some through holes in the ring-shaped groove of described cover inboard.

Heat sink assembly is connected by multi-disc.

Described being connected to being threaded by screw bolt and nut.

Heat pipe is connected in lamp casing lower cover inboard.

The beneficial effects of the utility model are: on the one hand, led light source directly contacts with fin, heat pipe surface, heat transferred fin and the lamp casing that can fast led light source be produced, fin is main thermal component, lamp casing plays the auxiliary heat dissipation function, thereby realizes the efficient heat transfer heat radiation of whole lamp; On the other hand, adopt numerous free-standing fin to press solidly and be integral, when enlarging area of dissipation, can reduce fin weight to greatest extent; On the other hand, the via design of cover inboard cooperates the loam cake of lamp casing, the louvre of lower cover, can realize the cross-ventilation that lamp housing is inner good, improves radiating efficiency.

The utlity model has slim and graceful, the luminous advantage such as evenly of perfect heat-dissipating, structure, can be widely used in fields such as indoor local lighting, decorative lighting.

Description of drawings

Fig. 1 is the stereogram of a preferred embodiment of the present utility model;

Fig. 2 is the STRUCTURE DECOMPOSITION schematic diagram of a preferred embodiment of the present utility model.

The specific embodiment

As shown in Figure 1, this preferred embodiment is made up of case top lid 1, housing lower cover 4, cover 5 etc. respectively in appearance, and integral body is the structure of similar cone.Wherein, be provided with louvre 11 in case top lid 1, louvre 11 be shaped as strip, be distributed in the surface of case top lid 1 side by side, on housing lower cover 4, also be provided with corresponding louvre, increase the cross-ventilation up and down of the inside and outside air of lamp housing.

Case top lid 1 and/or housing lower cover 4 isopreferences adopt the aluminum alloy material die cast, when light fixture is carried out auxiliary heat dissipation, guarantee the light fixture integral intensity, and structural lightness.

As shown in Figure 2, this preferred embodiment is made up of case top lid 1, fin 2, heat pipe 3, housing lower cover 4, cover 5, led light source 6 etc. respectively.Wherein, fin 2 is laminated structure independently, by complete radiator of the fixing formation of mutual superposition, be provided with notch 21 in fin 2 cross sections, notch 21 is similar semi-circular structure, heat pipe 3 is fixed in the described notch 21, the extension of heat pipe 3 is connected in lamp casing lower cover 4 inboards simultaneously, as preferential employing open-celled structure, connect in the perforate 41 with housing lower cover inboard as the extension of heat pipe 3, make the temperature of heat pipe 3 can pass to housing lower cover 4 fast, utilize housing lower cover 4 to carry out auxiliary heat dissipation, the substrate of led light source 6 directly is contacted with described fin 2 cross sections and heat pipe 3 surfaces, to reduce thermal resistance, improves heat transfer efficiency.

Fin 2 presses solidly by stack and forms integral body, the distribution of fin 2 is adopted vertically, be convenient to air and form convection current up and down, be preferably the aluminum alloy materials die cast, take into account heat dispersion and cost. in the process that fin 2 mutual superposition press solidly, the part that contacts with led light source at the center, the fin 2 that can select for use copper or Cu alloy material to make, to improve the thermal conductivity of integral heat sink device, reduce thermal resistance.

Led light source 6 fixedly is contacted with the cross section of fin 2 and the surface of heat pipe 3, and the general Heat Conduction Material of filling between contact-making surface as heat-conducting cream etc., is undertaken fasteningly by screw, to increase contact area between the two, improve heat conductivility; Or adopt the mode of welding, and led light source 6 is welded on the cross section of heat pipe 3 surfaces and fin 2, reduce the thermal resistance of contact-making surface.

Led light source 6 quantitatively can adopt single-chip package or the integrated encapsulation of multicore for one or more, and the wavelength of light source is visible or black light wave band, or mixed light, preferably adopts the high-power LED light source of integrated encapsulation.

Cover 5 is similar cylindrical structure, in the central authorities of cover 5 lens is arranged fixedly, to adjust rising angle and the hot spot of light, on cover 5 inwalls of lens periphery, is provided with reflective structure, increases light emission rate, reduces light loss.Be provided with numerous through holes 51 in the interior annular groove of cover 5, through hole 51 is provided with sheet glass 52, and is corresponding mutually with louvre on case top lid 1, the housing lower cover 4, forms the multichannel air convection channel.

Above embodiment only is preferred version of the present utility model, and other any simple or surperficial changes are all in protection domain of the present utility model.

Claims

1.LED track lamp, comprise led light source, heat sink assembly, case top lid, housing lower cover and cover, it is characterized in that, described heat sink assembly by multi-disc fin mutual superposition together, the fin cross section is provided with notch, the cross section of multi-disc fin forms a cavity together, and heat pipe is arranged in this cavity, and the led light source substrate directly is contacted with described fin cross section and heat pipe surface.

2. LED track lamp according to claim 1 is characterized in that, described fin is vertically to distribute.

3. LED track lamp according to claim 1 is characterized in that, is provided with some through holes in the ring-shaped groove of described cover inboard.

4. LED track lamp according to claim 1 is characterized in that heat sink assembly is connected by multi-disc.

5. LED track lamp according to claim 4 is characterized in that, described being connected to being threaded by screw bolt and nut.

6. according to the described LED track lamp of any claim of claim 1-5, it is characterized in that heat pipe is connected in lamp casing lower cover inboard.