CN203099449U

CN203099449U - Light-emitting diode (LED) down lamp

Info

Publication number: CN203099449U
Application number: CN2013200782885U
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: 2013-02-02
Filing date: 2013-02-02
Publication date: 2013-07-31
Anticipated expiration: 2023-02-02

Abstract

The utility model discloses a light-emitting diode (LED) down lamp which comprises an outer shell, a reflection cup, a light-transmitting plate and an LED light source. The outer shell is of a bowl-opening-shaped structure. Cooling fins are distributed on the surface of the outer shell. Fixing columns are arranged on the inner wall of a bowl opening. The LED light source is fixed at the bottom of the bowl opening of the outer shell. An open hole is formed in the bottom of the bowl opening. The reflection cup is located on the periphery of the LED light source. A surface cover is fixed on the fixing columns. The light-transmitting plate and the reflection cup are sequentially pressed on the LED light source through the surface cover. The LED down lamp is simple in structure, good in heat dissipation performance, easy and convenient to install and the like, the LED down lamp facilitates mass processing and mass production and can be widely used in the fields of indoor local lighting, decorative lighting and the like.

Description

The LED Down lamp

Technical field

The utility model relates to a kind of ligthing paraphernalia, and especially a kind of is light source with the great power LED, has the LED Down lamp of excellent heat dispersion performance.

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, area such as the U.S., European Union, Japan and country have released LED semiconductor lighting engineering project one after another, guiding and promote the application of LED illumination and popularize.

In the patent No. is in the patent of CN201110305090.1, described a kind of LED Down lamp, its heat radiation mainly is the groups of fins by being provided with on the heat abstractor, dispels the heat, heat abstractor is threaded in Down lamp base bottom, and the led light source module is arranged in the Down lamp base.Though it is simple in structure that this patent has, the advantage of good heat dispersion performance, in actual application, heat abstractor weight is bigger than normal, accumulates dust easily, base enclose inside, not convection current of air, deficiencies such as auxiliary heat dissipation weak effect.

The utility model content

At the deficiency that above-mentioned prior art exists, it is a kind of simple in structure that the utility model provides, and has the New LED Down lamp of excellent heat dispersion performance.

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

The LED Down lamp, include shell, reflector, light-passing board and led light source, shell is the bowl-mouth shape structure, surface distributed has fin, and the rim of a bowl inwall is provided with fixed leg, and led light source is fixed on the rim of a bowl bottom of shell, the rim of a bowl bottom is provided with perforate, reflector is positioned at the periphery of led light source, and cover is fixed on the Zhou Dingzhu, and successively light-passing board and reflector is pressed on the led light source.

Described shell bowl-mouth shape structure is circular or square.

" 7 " font that is oriented of described perforate bends through hole.

The rim of a bowl one end is provided with tangent plane.

The beneficial effects of the utility model are: on the one hand, the Down lamp shell adopts the radiator structure of integral type, can finely take into account production installation, good looking appearance and heat dispersion; On the other hand, because face shield, light-passing board, reflector etc. are except that the Zhou Dingzhu with shell the rim of a bowl contacts, be spaced from each other with shell the rim of a bowl inside, begin to the inner air of outer casing bottom perforate convection channel up and down thereby formed from shell the rim of a bowl tangent plane, realize inner the rim of a bowl internal heat dissipating, realize dual radiating effect with the heat radiation of the fin of case surface; On the other hand, the perforate of the rim of a bowl bottom is a horizontal cross, can reduce dust, foreign matter etc. and enter into lamp interior, keeps clean and the internal heat dissipating performance.

The utlity model has advantages such as simple in structure, perfect heat-dissipating, simple installation, be convenient to mass processing and produce, can be widely used in fields such as indoor local lighting, decorative lighting.

Description of drawings

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

Fig. 2 is the decomposing schematic representation of a preferred embodiment of the present utility model.

The specific embodiment

As shown in Figure 1, 2, this preferred embodiment is made up of critical pieces such as shell 1, cover 2, reflector 3, light-passing board 4, led light source 5, terminal box 6, spring supports 7 respectively.Wherein, shell 1 is the bowl-mouth shape structure, surface distributed has fin 11, be provided with fixed leg 12 in the rim of a bowl, the rim of a bowl one end is provided with inclination tangent plane 13, led light source 5 is fixed on the rim of a bowl bottom of shell 1, the rim of a bowl bottom is provided with perforate 14, reflector 3 is positioned at the top of led light source 5, be positioned on the Zhou Dingzhu 12, light-passing board 4 is positioned on the reflector 3, and cover 2 is installed on the fixed leg 12, reflector 3, light-passing board 4, face shield 2 are spaced from each other with inner other positions of the rim of a bowl and tangent plane 13 except that with fixed leg 12 contacts.

Wherein, shell 1 bowl-mouth shape structure is circular or square and similar structures, can select different shape and structures according to the difference of installation site and size.

The shell 1 preferred aluminium alloy or the contour heat conductive metal of almag or alloy material of adopting made, and produces in batches by extrusion process.

The fin 11 of shell 1 surface distributed is bigger list structure, is distributed with radiating ribs in the rim of a bowl inside of correspondence, can play the effect that strengthens protection intensity on the one hand, uses as the heat radiation of the rim of a bowl inner air convection current on the other hand.The fin 11 of big list structure adopts the laminated structure than small heat dissipating plate relatively, not only be more prone to the processing of spraying paint, and moulding is more attractive in appearance.

The rim of a bowl bottom opening 14 of shell 1 be oriented horizontal cross (" 7 " font bending through hole), with respect to the perforate of adopting vertical direction, the horizontal direction perforate can prevent better that dust from entering when taking into account the cross-ventilation ability.

Led light source 5 is realized the quick conduction of heat by fixing on the rim of a bowl bottom mode weeks such as screw, welding.Led light source 5 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.

Reflector 3 and light-passing board 4 are positioned on the Zhou Dingzhu 12, and cover 2 preferably is installed on the fixed leg 12 by screw structural, oppress reflector 3 simultaneously and light-passing board 4 carries out fastening.Reflector 3 mainly is to play the effect that increases light extraction efficiency, generally adopts aluminum or plastic material to make, and inner reflector segment adopts plated film or borax to handle, to increase the light emission rate of light.Light-passing board 4 is that glass or plastic material are made, thereby protects the closure of lamp interior, also can carry out the frosted processing on the surface or carry out optical treatment, plays the effect of anti-dazzle or optically focused.

In the installation process of reflector 3, light-passing board 4, face shield 2,, be spaced from each other, begin to the air convection channel of the rim of a bowl bottom end opening 14 from the rim of a bowl tangent plane 13 thereby form with inner other positions of the rim of a bowl and tangent plane 13 except that with fixed leg 12 contacts.Because the rim of a bowl tangent plane 13 is an inclined plane, concrete angular dimension can be inconsiderate to some extent, and the design of inclination does not influence the attractive in appearance of integral body on the one hand, can prevent entering of dust, foreign matter on the other hand.

Terminal box 6 is the structure of hollow, and its inside can be provided with the LED driving power, and binding post externally is set, and is electrically connected.

At the fixing of present embodiment with install, adopt traditional snak link 7 structures, simple in structure, practicality and simple installation.

Above embodiment only is a 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 Down lamp, include shell, reflector, light-passing board and led light source, it is characterized in that shell (1) is the bowl-mouth shape structure, surface distributed has fin (11), the rim of a bowl inwall is provided with fixed leg (12), led light source (5) is fixed on the rim of a bowl bottom of shell (1), and the rim of a bowl bottom is provided with perforate (14), and reflector (3) is positioned at the periphery of led light source (5), cover (2) is fixed on the fixed leg (12), and successively light-passing board (4) and reflector (3) is pressed on the led light source (5).

2. according to claims 1 described LED Down lamp, it is characterized in that described shell (1) bowl-mouth shape structure is circular or square.

3. according to claims 1 described LED Down lamp, it is characterized in that " 7 " font that is oriented of described perforate (14) bends through hole.

4. according to claims 1,2 or 3 described LED Down lamps, it is characterized in that the rim of a bowl one end is provided with tangent plane (13).