CN102252194A

CN102252194A - LED (light emitting diode) light source lamp

Info

Publication number: CN102252194A
Application number: CN2011101702633A
Authority: CN
Inventors: 刘光兴
Original assignee: HUANGSHAN JINJIAN LIGHTING TECHNOLOGY Co Ltd
Current assignee: HUANGSHAN JINJIAN LIGHTING TECHNOLOGY Co Ltd
Priority date: 2011-03-23
Filing date: 2011-06-23
Publication date: 2011-11-23
Also published as: CN102242882A; CN202118625U

Abstract

The invention belongs to the field of illumination, and in particular relates to an LED (light emitting diode) light source lamp which comprises an LED light source and a heat radiation device, wherein the appearance of the heat radiation device is of a cup body shape; the outer surface of the bottom surface of the cup-body-shaped heat radiation device is fitted with the bottom end surface of the LED light source; the outer wall part of the cup-body-shaped heat radiation device is provided with a heat radiation fin; the LED light source also comprises a circuit board; and the circuit board is arranged at the other end far away from the heat radiation device, of the LED light source. The lamp provided by the invention has the advantages of simple structure, good heat radiation effect, long service life and stability and reliability in working.

Description

A kind of led light source light fixture

Technical field

The invention belongs to lighting field, be specifically related to a kind of led light source light fixture.

Background technology

The led light source light fixture has that volume is little, power consumption is low and advantage such as energy-conserving and environment-protective, has become main trend in the development of light fixture industry.So-called led light source light fixture as its name suggests, is meant that the light fixture product adopts LED (Light-emitting Diode, light emitting diode) technology as main light emitting source.Existing led light source light fixture mostly is spot light and is polymerized, because the light-emitting area of a single point light source is narrow, usually extensive in the circuit board integrated, form a bigger light emitting source, embody its illuminating effect thus, yet unavoidably cause a large amount of thermal accumlations again thus, cause the brightness and the decay in circuit spare part service life of LED light fixture, more sometimes even can puncture circuit board, cause light fixture to damage, have to change safeguard temporarily, cause many puzzlements to the user.Therefore, the heat dissipation problem of led light source light fixture is a difficult problem of puzzlement led light source lamp manufacturer always, in case it is improper to dispel the heat, then tends to cause the brightness of LED light fixture and the acceleration decay in circuit spare part service life.

Summary of the invention

The purpose of this invention is to provide a kind of led light source light fixture of simple in structure and good heat dissipation effect, its long service life and working stability are reliable.

For achieving the above object, the present invention has adopted following technical scheme: a kind of led light source light fixture, comprise led light source and heat abstractor, described heat abstractor profile is the cup shape, the outer surface of cup shape heat abstractor bottom surface and the bottom face of led light source are fitted and are provided with, the outside wall portions of cup shape heat abstractor is provided with fin, and described led light source light fixture also comprises circuit board, and described circuit board is arranged at the other end away from led light source of heat abstractor.

Major advantage of the present invention is: at first, led light source directly and affixed between heat abstractor has been removed the middle transition part from or directly the cup bottom of heat abstractor has been considered as both transition pieces, thereby guaranteed triangular good heat conductivity, be beneficial to heat radiation, long service life; Secondly, on the basis of the above, the heat abstractor outer wall is provided with fin simultaneously, is beneficial in time dispersing of heat, has avoided the accumulation of heat, further increases its heat dispersion; At last, the circuit board setting that hear resistance is lower is away from led light source, guarantee that the heat that led light source produces is unlikely to have influence on the operate as normal of circuit board in long-time use, thus the reliability when guaranteeing that the present invention works, and further prolong service life.

Description of drawings

Fig. 1 is a structural representation of the present invention;

Fig. 2, Fig. 3 are the explosive views of structure shown in Figure 1.

The specific embodiment

A kind of led light source light fixture, comprise led light source 10 and heat abstractor 20, described heat abstractor 20 profiles are the cup shape, the outer surface of cup shape heat abstractor 20 bottom surfaces and the bottom face of led light source 10 are fitted and are provided with, the outside wall portions of cup shape heat abstractor 20 is provided with fin 21, described led light source light fixture also comprises circuit board 30, and described circuit board 30 is arranged at the other end away from led light source 10 of heat abstractor 20, as Figure 1-3.

Further, fin 21 is done following qualification herein: described fin 21 is around the 20 outer wall settings of cup shape heat abstractor.

Further, for increasing the heat dispersion of heat abstractor 20, guarantee its Homogeneouslly-radiating, described fin 21 profiles are long strip-board shape, and the even at interval layout of its plate body and its plate face are positioned at the radial direction place of heat abstractor 20, fin 21 herein is not only to dispel the heat tabular helping of bar, and the gap that is constituted between each fin 21 has also formed the channel of being convenient to circulation of air naturally simultaneously.

As Figure 1-3, the described led light source light fixture face-piece 50 that also comprises reflection shield 40 and be used for reflection shield 40 is attached to led light source 10 places.Be further to optimize heat dispersion of the present invention, it is up-small and down-big horn-like that described reflection shield 40 profiles are, and described reflection shield 40 tops are buckled in led light source 10 places and upper port upwards postpones and sheathed fin 21 places that are fixed in heat abstractor 20 outer walls.Like this, reflection shield 40 among the present invention, heat abstractor 20 constitute integral structure with face-piece 50, and its heat distributes fin 21 places that face not only is confined to heat abstractor 20, but integral body all can be dispelled the heat, strengthened thermal diffusivity of the present invention greatly, also increase greatly its service life thereupon.

Further, preferred version as such scheme: as Figure 1-3, described circuit board 30 is arranged at the cup-mouth end of cup shape heat abstractor 20, the led light source light fixture also comprises support 60, described support 60 is long strip-board shape and is located in 20 of circuit board 30 and heat abstractors, its two short end bend downwards and postpone to and 50 of face-pieces affixed.Support 60 herein can be selected all aluminiums etc. preferably of thermal diffusivity and intensity for use, be used for reliable in use affixed and supporting body on the one hand, constitute integrated radiating once more with face-piece 50, thereby further strengthened its heat dispersion with above-mentioned reflection shield 40, heat abstractor 20 on the other hand.

Further, for the installation of guaranteeing circuit board 30 affixed reliable and stable, the heat of further isolated heat abstractor 20 conducts to circuit board 30 places simultaneously, described led light source light fixture comprises the container cavity 70 that is used for containment circuit board 30, and described container cavity 70 comprises and 60 affixed bottom end covers 71 of support and be mated the upper end cover 72 that constitutes cavity.In addition, described bottom end cover 71 is provided with insulation board 80, the power leakage problem that may cause with the fault that prevents circuit board 30 in its lid bottom and 30 of circuit boards.

Further, be specific implementation wire connection structure of the present invention, described heat abstractor 20 bottom centre place offers the hole portion 22 that is communicated with 20 glasss of chambeies of heat abstractor and led light source 10 bottom faces, described support 30, bottom end cover 71, the insulation board of arranging successively from the bottom to top 80 all offered through hole in its corresponding position, as shown in Figure 1,30 of described led light source 10 and circuit boards are connected with the connection line of respective through hole by passing its hole portion 22.Simultaneously, the tops of described upper end cover 72 is provided with and is used for the binding post 90 that connection line is connected with external equipment, realizes that finally whole circuit of the present invention connects.

Claims

1. led light source light fixture, comprise led light source (10) and heat abstractor (20), it is characterized in that: described heat abstractor (20) profile is the cup shape, the outer surface of cup shape heat abstractor (20) bottom surface and the bottom face of led light source (10) are fitted and are provided with, the outside wall portions of cup shape heat abstractor (20) is provided with fin (21), described led light source light fixture also comprises circuit board (30), and described circuit board (30) is arranged at the other end away from led light source (10) of heat abstractor (20).

2. led light source light fixture according to claim 1 is characterized in that: described fin (21) is around cup shape heat abstractor (20) outer wall setting.

3. led light source light fixture according to claim 2 is characterized in that: described fin (21) profile is long strip-board shape, and its plate body is evenly arranged at interval and its plate face is positioned at the radial direction place of heat abstractor (20).

4. according to claim 1 or 2 or 3 described led light source light fixtures, it is characterized in that: described led light source light fixture also comprises reflection shield (40) and is used for reflection shield (40) is attached to the face-piece (50) that led light source (10) is located, it is up-small and down-big horn-like that described reflection shield (40) is, and described reflection shield (40) top is buckled in that led light source (10) is located and upper port upwards postpones and the sheathed fin (21) that is fixed in heat abstractor (20) outer wall is located.

5. led light source light fixture according to claim 4, it is characterized in that: described circuit board (30) is arranged at the cup-mouth end of cup shape heat abstractor (20), the led light source light fixture also comprises support (60), described support (60) is long strip-board shape and is located between circuit board (30) and heat abstractor (20), its two short end bend downwards and postpone to and face-piece (50) between affixed.

6. led light source light fixture according to claim 5, it is characterized in that: described led light source light fixture comprises the container cavity (70) that is used for containment circuit board (30), described container cavity (70) comprise and support (60) between affixed bottom end cover (71) and be mated the upper end cover (72) that constitutes cavity.

7. led light source light fixture according to claim 6 is characterized in that: described bottom end cover (71) is provided with insulation board (80) between its lid bottom and circuit board (30).

8. led light source light fixture according to claim 7, it is characterized in that: described heat abstractor (20) bottom centre place offers the hole portion (22) that is communicated with heat abstractor (20) cup chamber and led light source (10) bottom face, described support (30), bottom end cover (71), the insulation board of arranging successively from the bottom to top (80) all offered through hole in its corresponding position, is connected with the connection line of respective through hole by passing its hole portion (22) between described led light source (10) and circuit board (30).

9. led light source light fixture according to claim 8 is characterized in that: the tops of described upper end cover (72) is provided with the binding post (90) that is used for connection line and is connected with external equipment.