CN202008019U

CN202008019U - Led lamp

Info

Publication number: CN202008019U
Application number: CN2011200295264U
Authority: CN
Inventors: 郑弘杰; 曹志任
Original assignee: FONG KAI INDUSTRIAL Co Ltd
Current assignee: FONG KAI INDUSTRIAL Co Ltd
Priority date: 2011-01-26
Filing date: 2011-01-26
Publication date: 2011-10-12
Anticipated expiration: 2021-01-26

Abstract

The utility model discloses an LED lamp, which comprises a radiating portion and a shade. At least one surface of the radiating portion is provided with at least one circuit board provided with a plurality of LEDs, and the shade covers the outside of a combination composed of the radiating portion, the circuit boards and the LEDs. The LED lamp is characterized in that the radiating portion is provided with a top surface and a bottom surface, a hollow space is formed between the top surface and the bottom surface, the circuit boards are respectively arranged on the top surface and the bottom surface of the radiating portion, the LEDs are respectively arranged on the circuit boards arranged on the top surface and the bottom surface of the radiating portion, and the shade arranged outside the top surface and the bottom surface of the radiating portion is used for regulating light shapes. By the aid of the LED lamp, larger illumination range can be provided compared with an existing LED tube, and different emitted light shapes for meeting needs for special use can be generated.

Description

The LED light fixture

Technical field

The utility model relates to a kind of lighting apparatus, and referring in particular to a kind of is the light fixture in lamp source with LED.

Background technology

LED (light emitting diode) is since exploitation, and from being applied to the electronics display light source in early days, arriving in the recent period can be as traffic lights, automobile tail light and lighting, and its scope of application is popularized various fields gradually.LED has the little but luminous efficiency height of power, and the advantage of power saving and long service life with this lighting that is developed to, can replace traditional incandescent lamp, fluorescent lamp, Halogen lamp LED and arc lamp gradually.

The LED light fixture of having developed now comprises ball bubble, Recessed light and fluorescent tube etc., and wherein the LED fluorescent tube is used to replace fluorescent tube for the usefulness of doing illumination in a large number by some office or factory, in the hope of saving the electricity consumption consume.Though these fluorescent tubes have than conventional fluorescent power saving and long advantage of life-span, but the shortcoming of LED fluorescent tube is, LED in its fluorescent tube is laid in circuit board surface, and only dispose the downward LED of a row in the existing LED fluorescent tube, its illumination optimum range only comprises the scope of an angle of release under fluorescent tube directly, it is dim that surrounding area in addition then seems, so the illumination of LED fluorescent tube is too late in the illumination of conventional fluorescent.In addition, the lampshade of LED fluorescent tube is selected glass or PC material mostly for use at present, and the lampshade of these materials only can allow that light appears, and can't adjust irradiant smooth type, to meet the demand of special lighting.

The utility model content

In order to solve the illumination zone problem of LED fluorescent tube in the prior art, the purpose of this utility model is to provide a kind of LED light fixture, and it can enlarge the illumination zone of LED fluorescent tube.The utility model also can be at user demand to adjust the light type of its illuminating ray simultaneously.

To achieve these goals, a kind of LED light fixture that the utility model provides comprises a radiating part, and at least one surface of described radiating part is provided with at least one circuit board, and described circuit board is provided with a plurality of LED; At least one cover body, described cover body is covered in the outside of the combination of described radiating part, circuit board and a plurality of LED, and wherein: described radiating part has an end face and with respect to the bottom surface of end face, formation one hollow spacing between described end face and the described bottom surface; Described circuit board is located at the end face and the bottom surface of described radiating part respectively; Described a plurality of LED is located at respectively on the circuit board of the end face of described radiating part and bottom surface; And described cover body is covered in the end face of described radiating part respectively and the outside of bottom surface is used to adjust the light type.

As preferably, described cover body is covered in the outside of the end face of described radiating part and bottom surface and combines with described radiating part.

As preferably, described cover body is covered in the outside of the end face of described radiating part and bottom surface and combines with described a plurality of LED.

As preferably, described cover body is convex lens cover body or concavees lens cover body.

In addition, in second kind of embodiment of the present utility model, the end face of described radiating part and bottom surface also can stretch out respectively and form a photo-emission part.

And, in second kind of embodiment of the present utility model,, also comprising two cover bodies as preferably, two described cover bodies cover respectively and are incorporated on the end face and the described photo-emission part outside the bottom surface of described radiating part; Similarly, preferably described cover body is convex lens cover body or concavees lens cover body.

Be compared to prior art, the utlity model has following beneficial effect:

1) LED light fixture of the present utility model, by being located at a plurality of LED on radiating part end face and the bottom surface circuit board respectively, can make the LED fluorescent tube of this kind form have ejaculation light on down straight and straight, and the only straight light that penetrates down of more existing LED fluorescent tube have bigger illumination zone.

2) LED light fixture of the present utility model, the cover body of the end face by radiating part and the adjustable lay the grain type that the outside covered of bottom surface, can adjust irradiant smooth type, for example use the convex lens cover body can make ejaculation light have spotlight effect, use the concavees lens cover body can make ejaculation light have the effect of dispersing; Therefore, can provide existing LED fluorescent tube the light type that can't change, so that the demand of special use to be provided.

Description of drawings

Fig. 1 is the longitudinal sectional view (having shown simultaneously among Fig. 1 that light changes by the direction behind the concavees lens cover body) of the LED light fixture of first preferred embodiment of the utility model.

Fig. 2 is the luminous intensity measured data figure of the LED light fixture of the use equal thickness cover body of the LED light fixture of first preferred embodiment of the utility model of using the concavees lens cover body and prior art.

Fig. 3 is the longitudinal sectional view (having shown simultaneously among Fig. 3 that light changes by the direction behind the convex lens cover body) of the LED light fixture of second preferred embodiment of the utility model.

Fig. 4 is the part-structure schematic diagram (showing among Fig. 4 that cover body is incorporated into the LED side) of the LED light fixture of the 3rd preferred embodiment of the utility model.

Fig. 5 is the longitudinal section (having shown simultaneously among Fig. 5 that light changes by the direction behind the photo-emission part) of the LED light fixture of the 4th preferred embodiment of the utility model.

Fig. 6 is the longitudinal section of the LED light fixture of the 5th preferred embodiment of the utility model (having shown simultaneously among Fig. 6 that the direction after light is by photo-emission part and cover body changes).

Main Reference numeral

1,2,3,4,5...........LED light fixture

10,60.................. radiating part

11,61.................. end face

111,121................ groove

12,62.................. bottom surface

13,63.................. hollow spacing

20,20c................. circuit board

30、30b、30c............LED

31b..................... groove

40,40a, 40b, 40d... ... cover body

41,41a................. protruding rail

41b..................... grab

51,52.................. curve

64,65,74,75......... photo-emission part

The specific embodiment

Below in conjunction with accompanying drawing structure of the present utility model is further described in detail:

As shown in Figure 1, the LED light fixture 1 of first preferred embodiment of the utility model comprises a radiating part 10, and it has the bottom surface 12 that an end face 11 reaches with respect to end face, forms a hollow spacing 13 between end face 11 and the bottom surface 12; One circuit board 20 is located at the end face 11 and the bottom surface 12 of radiating part 10 respectively; Circuit board 20 be provided with a plurality of LED 30 to outer surface; And the end face 11 of radiating part 10 and the outside of bottom surface 12 cover the cover body 40 of an adjustable lay the grain type respectively.

The LED light fixture 1 of novel first preferred embodiment of basis as shown in Figure 1, wherein radiating part 10 is a kind of type extruding body, its end face 11 and bottom surface 12 be provided with groove 111,121 to outer surface, and the open side of cover body 40 is provided with the protruding rail 41 that can close with groove 111,121 clampings each other, by the combination of groove 111,121 and protruding rail 41, make cover body 40 can be covered in the outside of the end face of radiating part 10 and bottom surface and combine with radiating part 10.In addition, the hollow spacing 13 that the end face 11 of radiating part 10, bottom surface are 12, the heat build-up of LED 30 on can separating end face 11, bottom surface 12, also can strengthen the area of dissipation of radiating part 10, make the LED of light fixture of the present utility model can bring into play preferably operating efficiency and prolong its service life.

The LED light fixture 1 of first preferred embodiment of the utility model as shown in Figure 1, the cover body 40 of wherein adjustable lay the grain type, be meant the variation that the emitted light of LED 30 can produce direction after by cover body 40, for reaching this function, the light fixture 1 of first preferred embodiment of the utility model, its cover body 40 is a kind of cover body of concavees lens, it is thin and to the gradually thick design of two ends protruding rail 41 to be that the thickness of cover body 40 is central authorities, the cover body of this kind form can produce the effect as concavees lens, LED 30 emitted light outwards can be produced the more astigmatic effect of diffusion (as the direction of arrow of Fig. 1) by cover body 40 backs, make and using identical LED to produce for 30 times by the light fixture 1 of installing this kind cover body 40 than the broader range of exposures of general equal thickness cover body; For example Fig. 2 is the LED light fixture 1 and the general luminous intensity measured data figure that uses the LED light fixture of equal thickness cover body of first preferred embodiment of the utility model of use concavees lens cover body, wherein generally use the light fixture of equal thickness cover body, its luminous intensity is about 110 degree of curve 51, full subtended angle; Used the LED light fixture 1 of first preferred embodiment of the present utility model of concavees lens cover bodies, its luminous intensity is that curve 52, full subtended angle are about 145 degree, by the full subtended angle of the LED light fixture 1 of first preferred embodiment of the present utility model as can be known greater than the full subtended angle of equal thickness cover body, the LED light fixture 1 of first preferred embodiment of the present utility model can be launched more rays toward LED 30 both sides, and promotes the illumination zone of LED light fixture.

The LED light fixture 1 of first preferred embodiment of the present utility model has as shown in Figure 1 used to have the lampshade 40 of concavees lens that light disperses principle improving the irradiant full subtended angle of light fixture, and the illumination zone of light fixture is promoted.Principle herewith, also can form a lampshade with having the convex lens that light converges principle, and the irradiant full subtended angle of the light fixture that utilizes this lampshade is diminished, with loosing in the middle of the light of both sides converges to that the script concavees lens produce, form the effect of optically focused, the LED light fixture 2 of second preferred embodiment of the present utility model for example shown in Figure 3, it is except cover body 40a, all the other structures are identical with the LED light fixture 1 of first preferred embodiment, it is thicker and to the gradually thin design of two ends protruding rail 41a that the thickness of its cover body 40a is central authorities, the cover body of this kind form can produce the effect as convex lens, and light that can LED 30 is emitted produces the spotlight effect that outwards converges (as the direction of arrow of Fig. 3) after by cover body 40a.

The LED light fixture 1 of first and second preferred embodiment of the present utility model, its

cover body

40,40a all are incorporated on the radiating part 10, and other feasible mode also can be incorporated into cover body other structure of light fixture, the LED light fixture 3 of the 3rd preferred embodiment of the utility model for example shown in Figure 4, its cover body 40b bottom has a grab 41b, and LED 30b side forms a groove 31b that can supply grab 41b to embed, grab 41b by cover body 40b embeds the groove 31b of LED 30b side, also can easily cover body 40b be installed the outside that be incorporated into light fixture.

Cover body

40,40a and 40b that the utility model first to the

LED light fixture

1,2 and 3 outsides of the 3rd preferred embodiment are equipped with adjustable lay the grain type; But, the mode that other is feasible, adjusting the effect of light type can be reached by other structure, the LED light fixture 4 of the 4th preferred embodiment of the utility model for example shown in Figure 5, its radiating part 60 is a kind of type extruding body, have the bottom surface 62 that an end face 61 reaches with respect to end face, form a hollow spacing 63 between end face 61 and the bottom surface 62; One circuit board 20c is located at the end face 61 and the bottom surface 62 of radiating part 60 respectively; Circuit board 20c is provided with a plurality of LED 30c to outer surface.The structure that the LED light fixture 4 of the 4th preferred embodiment is different from aforementioned a plurality of preferred embodiments is, the end face 61 of its radiating part 60 stretches out respectively with bottom surface 62 and forms the photo-

emission part

64,65 of one one-tenth arcuation, by curvature and the surperficial flatness thereof that changes this photo-

emission part

64,65, for example overlay coating is handled, then photo-

emission part

64,65 can replace cover body, can adjust the function that LED penetrates radiation direction and have.

As above the LED light fixture 4 of the 4th preferred embodiment of the utility model also can use cover body, this cover body can be equal thickness cover body, concavees lens cover body or convex lens cover body, the LED light fixture 5 of the 5th preferred embodiment of the utility model that show of Fig. 6 for example, the LED light fixture 4 of its structure and the 4th preferred embodiment is identical, but the cover body 40d of convex lens has been installed in the outside of its photo-

emission part

74,75 respectively.This LED light fixture 5 can see through its photo-

emission part

74,75 and cover body 40d carries out the adjustment of radiation direction respectively, to be applied to more specifically lighting demand.

Above embodiment only is explanation preferred implementation of the present utility model, be not in order to limit interest field of the present utility model, any those skilled in the art are after the as above disclosed technical descriptioon of reference the utility model, carry out not departing from change, the modification of the utility model technical spirit, all be possible.

Claims

1. a LED light fixture comprises a radiating part, and at least one surface of described radiating part is provided with at least one circuit board, and described circuit board is provided with a plurality of LED; At least one cover body, described cover body are covered in the outside of the combination of described radiating part, circuit board and a plurality of LED composition, it is characterized in that:

Described radiating part has an end face and with respect to the bottom surface of described end face, formation one hollow spacing between described end face and the described bottom surface;

Described circuit board is located at the end face and the bottom surface of described radiating part respectively;

Described a plurality of LED is located at respectively on the circuit board of the end face of described radiating part and bottom surface; And

Described cover body is covered in the end face of described radiating part respectively and the outside of bottom surface is used to adjust the light type.

2. LED light fixture as claimed in claim 1 is characterized in that, described cover body is covered in the outside of the end face of described radiating part and bottom surface and combines with described radiating part.

3. LED light fixture as claimed in claim 1 is characterized in that, described cover body is covered in the outside of the end face of described radiating part and bottom surface and combines with described a plurality of LED.

4. LED light fixture as claimed in claim 1 is characterized in that, described cover body is convex lens cover body or concavees lens cover body.

5. a LED light fixture comprises a radiating part, and at least one surface of described radiating part is provided with at least one circuit board, and described circuit board is provided with a plurality of LED, it is characterized in that:

The end face of described radiating part and bottom surface stretch out respectively and form a photo-emission part.

6. LED light fixture as claimed in claim 5 is characterized in that, also comprises two cover bodies, and two described cover bodies cover respectively and are incorporated on the end face and the described photo-emission part outside the bottom surface of described radiating part.

7. LED light fixture as claimed in claim 6 is characterized in that, described cover body is convex lens cover body or concavees lens cover body.