CN202118625U

CN202118625U - Light-emitting diode (LED) light source lamp

Info

Publication number: CN202118625U
Application number: CN2011202141398U
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: 2012-01-18
Anticipated expiration: 2021-06-23
Also published as: CN102242882A; CN102252194A

Abstract

The utility model belongs to the illumination field, in particular to a light-emitting diode (LED) light source lamp, which comprises an LED light source and a heat dissipation device. The appearance of the heat dissipation device is in a cup body shape, the outer surface of the bottom face of the cup-body-shaped heat dissipation device is attached to the bottom end face of the LED light source, and a heat dissipation fin is arranged on an outer wall portion of the cup-body-shaped heat dissipation device. The LED light source lamp further comprises a circuit board, and the circuit board is arranged at the other end of the heat dissipation device far away from the LED light source. The LED light source lamp is simple in structure and good in heat dissipation effect, and has the advantages of being long in service life and stable and reliable in work.

Description

A kind of led light source light fixture

Technical field

The utility model belongs to lighting field, is 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.Mostly existing led light source light fixture is that spot light is polymerized, because the light-emitting area of a single point light source is narrow, extensive in the circuit board integrated usually; Form a bigger light emitting source, embody its illuminating effect thus, yet unavoidably cause a large amount of thermal accumlations thus again; 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.

The utility model content

The purpose of the utility model provides a kind of led light source light fixture of simple in structure and good heat dissipation effect, and its long service life and working stability are reliable.

For realizing above-mentioned purpose; The utility model has adopted following technical scheme: a kind of led light source light fixture, comprise led light source and heat abstractor, and said 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 said led light source light fixture also comprises circuit board, and said circuit board is arranged at the other end away from led light source of heat abstractor.

The major advantage of the utility model 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 regarded 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 the utility model work, and further prolong service life.

Description of drawings

Fig. 1 is the structural representation of the utility model;

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, said heat abstractor 20 profiles are the cup shape, and the outer surface of cup shape heat abstractor 20 bottom surfaces and the bottom face of led light source 10 are fitted and be provided with; The outside wall portions of cup shape heat abstractor 20 is provided with fin 21; Said led light source light fixture also comprises circuit board 30, and said circuit board 30 is arranged at the other end away from led light source 10 of heat abstractor 20, shown in Fig. 1-3.

Further, fin 21 is done like delimit: said fin 21 is around the 20 outer wall settings of cup shape heat abstractor here.

Further; For increasing the heat dispersion of heat abstractor 20, guarantee its Homogeneouslly-radiating, said 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; The fin 21 here is not only to dispel the heat tabular helping of bar, and the gap that is constituted between each fin 21 has simultaneously also formed the channel of being convenient to circulation of air naturally.

Shown in Fig. 1-3, the face-piece 50 that said led light source light fixture also comprises reflection shield 40 and is used for reflection shield 40 is attached to led light source 10 places.Be further to optimize the heat dispersion of the utility model, it is up-small and down-big horn-like that said reflection shield 40 profiles are, and said 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 in the utility model, heat abstractor 20 constitute integral structure with face-piece 50; Its heat distributes fin 21 places that face not only is confined to heat abstractor 20; But integral body all can dispel the heat, and strengthened the thermal diffusivity of the utility model greatly, and also increase greatly its service life thereupon.

Further; Preferred version as such scheme: shown in Fig. 1-3; Said 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, and said 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.The support 60 here 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; Said led light source light fixture comprises the container cavity 70 that is used for containment circuit board 30, and said 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, said bottom end cover 71 is provided with insulation board 80, the power leakage problem that possibly cause with the fault that prevents circuit board 30 in its lid bottom and 30 of circuit boards.

Further; Be the concrete wire connection structure of realizing the utility model; Said 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; Said 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, and be as shown in Figure 1, and 30 of said led light source 10 and circuit boards are connected with the connection line of respective through hole through passing its hole portion 22.Simultaneously, the tops of said 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 the whole circuit of the utility model connects.

Claims

1. led light source light fixture; Comprise led light source (10) and heat abstractor (20); It is characterized in that: said heat abstractor (20) profile is the cup shape, and the outer surface of cup shape heat abstractor (20) bottom surface and the bottom face of led light source (10) are fitted and be provided with, and the outside wall portions of cup shape heat abstractor (20) is provided with fin (21); Said led light source light fixture also comprises circuit board (30), and said 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: said 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: said 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: said 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 said reflection shield (40) is, and said 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: said 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); Said 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: said led light source light fixture comprises the container cavity (70) that is used for containment circuit board (30), said 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: said 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: said 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; Said 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 through passing its hole portion (22) between said 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 said upper end cover (72) is provided with the binding post (90) that is used for connection line and is connected with external equipment.