CN202266859U

CN202266859U - Movable shield type light-emitting diode (LED) lamp structure

Info

Publication number: CN202266859U
Application number: CN2011203235424U
Authority: CN
Inventors: 陈同明; 蔡行平; 程光华
Original assignee: Tsann Kuen Zhangzhou Enterprise Co Ltd
Current assignee: Tsann Kuen Zhangzhou Enterprise Co Ltd
Priority date: 2011-08-30
Filing date: 2011-08-30
Publication date: 2012-06-06
Anticipated expiration: 2021-08-30

Abstract

A movable shield type light-emitting diode (LED) lamp structure is characterized by comprising an LED light source, a fixing base and a movable shield, wherein the LED light source is provided with at least one light-output surface of output lights, the fixing base is fixed at one end of the LED light source, and the movable shield is movably arranged on the outer surface of the fixing base in matching mode by surrounding the periphery of the connection line of the LED light source and the fixing base. The movable shield is provided with shielding edges capable of shielding the light-output surface. Part of a light-output surface can be shielded within the moving range of the shielding edges of the movable shield so that light beam angles and light quantity of lamps can be easily changed, glare of the light-output surface directly viewed by people can be adjusted, and the movable shield type LED lamp structure has the advantages of being convenient to adjust.

Description

The structure of movable shade formula LED light fixture

Technical field

The utility model relates to a kind of structure of LED light fixture, specifically is a kind of LED fitting structure that has movable shade.

Background technology

Compare with conventional incandescent light source, glow discharge spot lamp; Led light source has the characteristics of high directivity; It is the restriction that the beam angle of led light source can receive exiting surface; Because the exiting surface of led light source is generally the plane, its beam angle also is the characteristics that meet lambert's cosine body, thereby luminous flux concentrates on normal direction output.A weak point when this is commonly referred to be led light source and is used for indoor, general lighting is because its beam angle is big inadequately.

Yet in a lot of concrete fields, the directionality bright dipping of LED still can be utilized well, does not require that not only light source has the beam angle of the total space; Need the light beam of obvious directionality on the contrary, the occasion of some accent lights, special lighting particularly, the desk lamp of for example working; We always need its some horizontal zone that can concentrated area throws light on, and do not need too much vertical illumination, so; Aspect this, the led light source that has directionality can be competent at regard to snugly; Simultaneously, we can hope that this centralized lighting can be well controlled, such as dazzle, local illumination.So, the LED centralized lighting scheme of be convenient to control dazzle, regulating local illumination is a demand of this type LED Design of Luminaires.

The utility model content

To a demand of above centralized lighting LED light fixture, the utility model proposes a kind of structure of movable shade formula LED light fixture, and its technical scheme is following:

The structure of movable shade formula LED light fixture, it comprises:

One led light source has the light-emitting area of at least one output light;

One holder is fixed in an end of said led light source, has the installing port that passes power line; And

One movable shade is matched with said holder outer surface in the circumferential activity around said led light source and holder line; This activity shade has the penthouse that can cover said light-emitting area.

As some preferred persons of present technique scheme, can aspect following, improve:

In one preferred embodiment, said led light source is a cylindricality, and it is perpendicular to the event trace of said movable shade.

In one preferred embodiment, said led light source surface has radiator.

In one preferred embodiment, comprise the led light source plate on plane in the said led light source.

In the preferred embodiment of one cylindrical LED light source, said holder is a rotational symmetry structure, and the symmetry axis of this holder is coaxial with said led light source.

In one preferred embodiment, said movable shade inwall has the high reflectance surface.

In one preferred embodiment, said holder has the installing port that passes power line.

The beneficial effect that the utility model brings is:

1. in the scope of activities of movable shade penthouse, can realize the part of exiting surface is covered, thereby can change the beam angle and the luminous flux of light fixture easily, and the scalable human eye looks at the dazzle of exiting surface 11 straight, have control characteristic easily.

2. the scenario-frame of cylindrical LED light source is small and exquisite, and is integrated, applicable to the multiple occasion that needs accent light.

3.LED light source adopts the led light source plate on plane, and is simple in structure, heat radiation is prone to handle.

Description of drawings

Embodiment is described further the utility model below in conjunction with accompanying drawing:

Fig. 1 is the utility model embodiment explosive view;

Fig. 2 is the action signal of the stereogram and the movable shade 30 of Fig. 1 embodiment assembly;

The specific embodiment

As shown in Figure 1, the utility model embodiment explosive view;

Led light source 10 is a cylinder form, has two parts, the light-emitting area 11 of first light transmissive material, and it two is the radiators 13 that have fin, and the inside of the two has plate light source board 12, and the light beam of light source board 12 is towards light-emitting area 11.Led light source adopts the led light source plate on plane, and is simple in structure, and heat radiation is prone to handle.

Holder 20 has comprised middle seat 21, back seat 22, shade support 23, long spiro nail 25, cork head 26 and short screw 27; Seat 21 1 ends and light source 10 fix wherein, and the other end and back seat 22 fix through long spiro nail 25, and in addition, the hole of long spiro nail 25 place back seats 22 also has cork head 26 to stop up, and makes hole and screw cap be able to hide.

Middle seat 21 is a truncated cone-shaped with back seat 22 entire bodies, and the side of back seat 22 is fixed with shade support 23, has sliding tray 24 on the shade support 23, and this sliding tray 24 has been confirmed the sliding trace of movable shade 30, and the plane at its place is perpendicular to the central shaft of led light source 10.Through short screw 27, movable shade 30 is matched with shade support 23 and sliding tray 24 thereof through its stiff end 31, and penthouse 32 adjustable grounds of movable shade have covered light-emitting area 11.

In the practical set; Exiting surface 11, radiator 13 and light source board 12 are combined as led light source 10; Then led light source 10 is fixed on the middle seat 21; Again back seat 22 is locked on middle seat 21, plug 26, the structure of forming at last is combined into product with short screw 27, shade support 23 and movable shade 30 again.

Also have an installing port 28, this installing port 28 coiled pipe 40 of plugging in the side of back seat 22, in it cross-under the required electric wire of led light source 10.Total can be connected in positions such as other bases, metope through coiled pipe 40 in actual the use, simultaneously free adjustment.

Fig. 2 is the action signal of the stereogram and the movable shade 30 of Fig. 1 embodiment assembly; Movable shade 30 is matched with holder 20 according to the rotation of the direction shown in the arrow; The track that this direction slips over is perpendicular to the central shaft of led light source 10; In the scope of activities of penthouse 32, can realize the part of exiting surface 11 is covered, thereby can change the beam angle and the luminous flux of light fixture easily; And the scalable human eye looks at the dazzle of exiting surface 11 straight, has control characteristic easily.Simultaneously, total is small and exquisite, and is integrated, applicable to the multiple occasion that needs accent light.

The above; Be merely the utility model preferred embodiment; So can not limit the scope that the utility model is implemented according to this, the equivalence of promptly doing according to the utility model claim and description changes and modifies, and all should still belong in the scope that the utility model contains.

Claims

1. the structure of movable shade formula LED light fixture, it is characterized in that: it comprises:

One led light source has the light-emitting area of at least one output light;

One holder is fixed in an end of said led light source; And

2. according to the structure of the said movable shade formula LED light fixture of claim 1, it is characterized in that: said led light source is a cylindricality, and it is perpendicular to the event trace of said movable shade.

3. according to the structure of the said movable shade formula LED light fixture of claim 1, it is characterized in that: said led light source surface has radiator.

4. according to the structure of the said movable shade formula LED light fixture of claim 1, it is characterized in that: the led light source plate that comprises the plane in the said led light source.

5. according to the structure of the said movable shade formula LED light fixture of claim 2, it is characterized in that: said holder is a rotational symmetry structure, and the symmetry axis of this holder is coaxial with said led light source.

6. according to the structure of the said movable shade formula LED light fixture of claim 1, it is characterized in that: said movable shade inwall has the high reflectance surface.

7. according to the structure of the said movable shade formula LED light fixture of claim 1, it is characterized in that: said holder has the installing port that passes power line.