CN202691628U

CN202691628U - Lamp fitting

Info

Publication number: CN202691628U
Application number: CN201220021282XU
Authority: CN
Inventors: 柯俊民
Original assignee: Shanghai Arex Electronics Co ltd
Current assignee: Shanghai Arex Electronics Co ltd
Priority date: 2011-03-22
Filing date: 2012-01-17
Publication date: 2013-01-23
Anticipated expiration: 2022-01-17
Also published as: TWM413811U

Abstract

A lamp comprises a plurality of side-emitting light-emitting diodes (LEDs), a heat-radiating lamp panel, a light guide plate, a reflecting plate, a diffusing plate and a light-gathering plate, and is characterized in that the LEDs are arranged around the heat-radiating lamp panel and are provided with a heat-radiating function through the heat-radiating lamp panel, so that the lamp has the advantages of thin design, simple structure, easiness in heat radiation and the like.

Description

Light fixture

Technical field

The utility model is about a kind of light fixture, particularly about the light fixture of a kind of use led of side view type (Side View LED) as light source.

Background technology

In recent years, because the continuous improvement of High Power LED (LED) replaces white flag bulb and fluorescent lamp gradually in the application in a lot of fields, for example, traffic signal light, lighting apparatus and light fixture etc.Take light fixture as example, just often use LED as light source, because LED has very strong directionality and can send uniform mixed light, to consist of a uniform area source.

Please refer to shown in Figure 1ly, it shows the profile of an existing lamp interior structure.The internal structure of this light fixture comprises several positive surface-emitting type LED 15, a lamp plate 25, a LGP 5, a reflecting plate 10 and a radiator 35, it is characterized in that described several LED 15 are arranged on the surface of lamp plate 25, make the light-emitting area 12 and contact LGP 5 parallel with the bearing of trend on the surface of described lamp plate 25 of described several LED 15.As the high-capacity LED luminous efficiency and the heat dissipation problem that exist, the input power major part of described several LED 15 shown in Figure 1 will be converted into heat energy and shed, and the area of dissipation of the lamp plate 25 of carrying LED 15 is less, so that must install the ability that radiator 35 improves heat radiation additional in another surface of lamp plate 25, but the volume of the volume ratio LED that described radiator 35 is in fact shared is much bigger, add the space that other elements such as control circuit etc. take, all will cause the structural design of light fixture can't slimming and limit the design of its moulding, and because using more part, will cause cost of manufacture to improve.

The utility model content

The purpose of this utility model is to provide a kind of fitting structure, and it can not only reach slimming and heat radiation easily, simultaneously also can simplified structure and then save the advantage such as element cost.

For reaching above-mentioned utility model purpose, light fixture according to an embodiment of the present utility model, its structure comprises at least one LED, a heat dissipation lamp plate, a LGP and a reflecting plate, it is characterized in that described several LED are as the illuminating source of light fixture.Described heat dissipation lamp plate has a first surface and a second surface, the illuminating source that is used for the light fixture of installing electronic component and described at least one LED, and simultaneously for described at least one led light source provides heat sinking function, and it is characterized in that the light-emitting area of described at least one LED is perpendicular to first surface and the second surface of described heat dissipation lamp plate.Described LGP is located on the described heat dissipation lamp plate and is contacted the light-emitting area of described at least one LED, with the light guiding that described at least one LED sends, causes into the light of an area source.Described reflecting plate is located on the described heat dissipation lamp plate, and send the outside that is used for the described light fixture of turn light rays that will spread out of by described LGP.

According to light fixture of the present utility model, described at least one LED comprise several LED prolonging described heat dissipation lamp plate first surface around be evenly distributed, to obtain uniform light source.

According to light fixture of the present utility model, each element utilizes plank model component as far as possible, to reach the integrally-built purpose of slimming, it is characterized in that described reflecting plate except can also can be a reflecting metal coat for the template reflecting element, can not take too large space.According to light fixture of the present utility model, the material that it is characterized in that described heat dissipation lamp plate, can utilize as the material of ceramic substrate or the contour heat-sinking capability of metal substrate and as described in heat dissipation lamp plate have larger area of dissipation, increase the heat-sinking capability of light fixture, to replace the existing radiating mode that utilizes radiator, and then reach simultaneously simplification and thin type structure, and then reduce the purpose of element cost.According to light fixture of the present utility model, it is characterized in that described electronic component such as power supply control element with and relevant tracks, can be located on the second surface of described heat dissipation lamp plate, increase in this way the utilization rate in space.

According to the light fixture of another embodiment of the present utility model, its structure also can adopt the design of double-side, and its structure comprises at least two group LED, a heat dissipation lamp plate, two groups of LGPs and two groups of reflecting plates.It is characterized in that being positioned at the control of the controller that the LED of the first surface of described heat dissipation lamp plate and second surface can be by being positioned at the fitting structure outside, make selective decision single face luminous, or double-side is used the demand of occasion simultaneously, so on using, more has convenience.

Description of drawings

Fig. 1 is the generalized section that illustrates existing lamp interior structure.

Fig. 2 A is the generalized section that illustrates the light fixture of the utility model the first embodiment.

Fig. 2 B is the element explosive view that illustrates the light fixture of the utility model the second embodiment.

Fig. 3 is the element explosive view that illustrates the light fixture of the utility model the 3rd embodiment.

Fig. 4 A is the top view that illustrates behind each elements combination of light fixture of the utility model the 3rd embodiment.

Fig. 4 B is the side view that illustrates behind each elements combination of light fixture of the utility model the 3rd embodiment.

Fig. 5 is the side view that illustrates according to several LED, heat dissipation lamp plate and LGP three elements combination in Fig. 2 A light fixture.

Fig. 6 is the element explosive view that illustrates the light fixture of the utility model the 4th embodiment.

Fig. 7 is the element explosive view that illustrates the light fixture of the utility model the 5th embodiment.

Fig. 8 A is the top view that illustrates behind each elements combination of light fixture of the utility model the 5th embodiment.

Fig. 8 B is the side view that illustrates behind each elements combination of light fixture of the utility model the 5th embodiment.

Fig. 9 is the side view that illustrates according to two groups of LED, heat dissipation lamp plate and two groups of LGP three elements combinations in Fig. 6 light fixture.

The specific embodiment

Below in conjunction with accompanying drawing the technical solution of the utility model is elaborated.Should be noted at this, different graphic in, identical component symbol represents same or analogous element.Below the face direction of mentioned annexed drawings be defined as normal vector perpendicular to described plane.At this, the direction term of use is in order to explanation and understands the utility model, but not in order to limit the utility model.

At first, please refer to shown in Fig. 2 A, be the generalized section according to the light fixture 72 of the first embodiment of the present utility model, it comprises several led of side view type (LED) 20, a heat dissipation lamp plate 30, a LGP 5 and a reflecting plate 10, it is characterized in that described several LED 20 mainly are as the illuminating source of light fixture 72 and are arranged on the upper surface of described heat dissipation lamp plate 30, the light-emitting area 12 that makes described several LED 20 and the described upper surface of heat dissipation lamp plate 30 be mutually vertical to.

Shown in Fig. 2 A and 5, described heat dissipation lamp plate 30 is one to be discoideus circuit board (PCB), and configuration some electronic components (such as the power supply control element) and relevant tracks on its another lower surface (figure shows) are with the characteristics of luminescence of several LED 20 as described in controlling.In present embodiment, because described heat dissipation lamp plate 30 is a kind of ceramic substrate or metal substrate with high thermal conductivity, upper and lower surface by described heat dissipation lamp plate 30 has larger area of dissipation, make the upper and lower surface of described heat dissipation lamp plate 30 provide heat sinking function to described several LED 20 light sources simultaneously, and need not to install extra heat dissipation element additional such as prior art.Further with reference to figure 5, be the side view that shows LGP 5, described several LED 20 and heat dissipation lamp plate 30 three's elements combinations described in Fig. 2 A light fixture 72, it is characterized in that described several LED 20 do the even distribution of an annular and fixing as on the heat dissipation lamp plate 30 as described in being welded in around the inner periphery of described heat dissipation lamp plate 30 upper surfaces.

Shown in Fig. 2 A and 5, described LGP 5 also is discoideus and is arranged on described reflecting plate 10 and the heat dissipation lamp plate 30, make described several LED 20 along the outer circumference surface of described LGP 5 around and evenly distribute, and the outer circumference surface of described LGP 5 is close to the light-emitting area 12 of described several LED 20, be used for nearly level that described several LED 20 light-emitting areas 12 are launched to light do the refraction of special angle to change into the light of the area source with high brightness and homogeneous briliancy.

Shown in Fig. 2 A, described reflecting plate 10 is a kind ofly to present discoideus reflecting element and be arranged on the described heat dissipation lamp plate 30, be used for changing the transmit direction of light as making progress for reflection ray, make the light by described LGP 5 refractions can pass described LGP 5 upper surfaces, and then send to the outside by the light-emitting area (not shown) of light fixture 74.Should be noted that in other embodiment, the reflecting plate 10 that Fig. 2 A light fixture 72 uses can be a kind of film morphology that does not take up space (such as a reflecting metal coat), is formed on the upper surface of described heat dissipation lamp plate 30.Further with reference to figure 5, be welded in described several LED 20 on the described heat dissipation lamp plate 30, mode by lateral emitting, the emitted light of light-emitting area (not shown) with LED 20, import in the LGP 5, and utilize reflecting plate (shown in Fig. 2 A) that the light-emitting area of light by light fixture penetrated.It is noted that at this, the external form of each element of the utility model light fixture 72 such as heat dissipation lamp plate 30, LGP 5 and a reflecting plate 10 except be round, also can be designed to the geometry of any tool rule or irregular contour.

At this, structure such as the utility model light fixture 72 of the existing fitting structure of further comparison diagram 1 and Fig. 2 A, namely be understood that, since the incomplete structure of the utility model light fixture 72 the configuration direction of radiator and relatively described several LED 20 of described heat dissipation lamp plate 30 change, so not only can make its structure more simplify to save the element cost, also create the Design of Luminaires of slimming.It should be noted at this, the actual shared volume of heat dissipation element (radiator 35 as shown in Figure 1) in the existing fitting structure, much bigger with respect to the volume that described several LED 20 are shared, therefore the space that can save is considerable, and is very helpful for the slimming design of whole light fixture.

Next, please further with reference to the element explosive view according to the light fixture 74 of the second embodiment of the present utility model shown in the figure 2B, its similarities and differences of comparing the light fixture 72 shown in Fig. 2 A is: the overall structure of the light fixture 74 of the second embodiment except the similar elements such as several lateral emitting types LED 20, heat dissipation lamp plate 30, LGP 5 and reflecting plate 10 that the light fixture 72 that comprises Fig. 2 A has, more than comprised a diffuser plate 40 and a solar panel 45.Shown in Fig. 2 B, because the spot light of described several LED 20 has very strong directionality, for make light that described several LED 20 send can uniform mixed light to consist of a uniform area source, described diffuser plate 40 must be set on described LGP 5; In addition, utilize described solar panel 45 that the uniform light that described diffuser plate 40 transmits is concentrated, throw away by the light-emitting area of light fixture 74 again, illuminate object.

Refer again to the element explosive view of light fixture 76 according to the 3rd embodiment of the present utility model shown in Figure 3, its similarities and differences of comparing the light fixture 74 shown in Fig. 2 B is: the similar elements that light fixture 76 overall structures of the 3rd embodiment have except the light fixture 74 that comprises Fig. 2 B is (for for purpose of brevity, Fig. 3 has omitted reflecting plate 10, diffuser plate 40 and the solar panel 45 such as Fig. 2 B) outside, more than comprised that one first light cover 50 and one second light cover 55 are respectively applied to be coated on the outside such as light fixture two sides about in the of 74 of Fig. 2 B, an and retainer ring 60.Several side emitting types LED 20 of the light fixture 76 of Fig. 3 also is arranged evenly around the inner periphery along described heat dissipation lamp plate 30 and is welded on the described heat dissipation lamp plate 30, and described heat dissipation lamp plate 30 is fixed in the light fixture 76 by described retainer ring 60, and electronic component also can be placed in the back side of the light-emitting area of described heat dissipation lamp plate 30, to increase the utilization rate in space.The first light cover 50 shown in Figure 3 and the second light cover 55 are the outer Shell as light fixture 76, can increase the attractive in appearance of light fixture 76 external forms after the combination, as with reference to shown in figure 4A and the 4B, are top view and the side view behind each elements combination of the light fixture 76 of Fig. 3.

Because the light fixture after the various embodiments described above combination is a kind of template assembly, therefore can reach the integrally-built purpose of slimming.

See also Fig. 6 and be the element explosive view according to the light fixture 78 of the 4th embodiment of the present utility model, its structure comprises: two groups of several lateral emitting types LED 20,120 (such as the 9th figure diagrams), a heat dissipation lamp plate 130, LGP 5 about in the of two, 105, reflecting plate 10 about in the of two, 100, diffuser plate 40 about in the of two, solar panel 45 about in the of 140 and two, 145, it is characterized in that described reflecting plate 10 about in the of two, 100, diffuser plate 40 about in the of two, solar panel 45,145 is located at respectively on upper and lower two apparent surfaces of described heat dissipation lamp plate 130 about in the of 140 and two.Please further consult Fig. 9, to show described in Fig. 6 light fixture 78 LGP 5 about in the of two, 105, described two groups of LED 20,120 and the side view of described heat dissipation lamp plate 130 combination, it is characterized in that described two groups of LED 20,120 upper along described heat dissipation lamp plate 130, evenly arrange to be welded in respectively the upper of described heat dissipation lamp plate 130 respectively around lower two apparent surfaces' the inner periphery, on lower two apparent surfaces, make described two groups of LED 20,120 light-emitting area (not shown) is respectively perpendicular to up and down two apparent surfaces of described heat dissipation lamp plate 130 and contact described LGP 5,105 about in the of two.By described two fluctuating plate LGPs 5,105 and two reflecting plates 10,100 (as shown in Figure 6), can be respectively that the light-emitting area of two groups of LED 20,120 is emitted light is penetrated to the outside by upper and lower two light-emitting areas of light fixture 78.Other should be noted, in other embodiment, two reflecting plates 10,100 that Fig. 6 light fixture 78 uses can be a kind of film morphology that does not take up space (such as a reflecting metal coat) be formed at respectively as described on upper and lower two apparent surfaces of heat dissipation lamp plate 130.Because several lateral emitting types LED 20 shown in Fig. 6 and 9,120, heat dissipation lamp plate 130, LGP 5,105, reflecting plate 10,100, diffuser plate 40,140 and solar panel 45, the detailed construction of 145 each elements and application note are how identical with previous embodiment, for avoiding repetition, in this omission.Should be noted, be positioned at the LED 20 of the upper and lower surface of described heat dissipation lamp plate 130,120 can be by being positioned at the controller (not shown) control of light fixture 78 outsides, make it select to determine that single face is luminous, or double-side is used the demand of occasion simultaneously, so on using, more has convenience.

As shown in Figure 7, it is the element explosive view according to the light fixture 80 of the 5th embodiment of the present utility model, its similarities and differences compared to light fixture shown in Figure 6 78 is: the similar elements that light fixture 80 overall structures of the 5th embodiment have except the light fixture 78 that comprises Fig. 6 (because of drawing for purpose of brevity, Fig. 7 omits reflecting plate 10,100, diffuser plate 40,140 and solar panel 45,145) outside, its overall structure also further comprises: one first light cover 50 and one second light cover 55 are respectively applied to be coated on the outside such as light fixture two sides about in the of 78 of Fig. 6, and a retainer ring 60 is used for described heat dissipation lamp plate 130 is fixed in light fixture 80.Shown in Fig. 8 A and 8B, be top view and the side view behind each elements combination of Fig. 7 light fixture 80.Because other detailed descriptions are identical with previous embodiment, for avoiding repetition, in this omission.

Above-described embodiment only is the most preferred embodiment that provides in order to allow those skilled in the art understand the utility model.The utility model is not limited in the above-mentioned specific embodiment.Any those skilled in the art easily full of beard and improvement all within design of the present utility model.

Claims

1. light fixture comprises:

At least one light emitting diode (LED) has a light-emitting area and is used for emitting beam; And it is characterized in that described light fixture also comprises:

One heat dissipation lamp plate, have a first surface and a second surface, be used for installing electronic component and described at least one LED, and simultaneously for described at least one led light source provides heat radiation, the light-emitting area of described at least one LED is perpendicular to first surface and the second surface of described heat dissipation lamp plate;

One LGP is located on the described heat dissipation lamp plate and is contacted the light-emitting area of described at least one LED, with the light guiding that described at least one LED sends, causes into the light of an area source; And

One reflecting plate is located on the described heat dissipation lamp plate, is used for sending by the described light fixture of the turn light rays that described LGP spreads out of outside.

2. light fixture according to claim 1 is characterized in that described at least one LED comprises that several LED are along the distribution on every side of the first surface of described heat dissipation lamp plate.

3. light fixture according to claim 1 is characterized in that described reflecting plate is a reflecting metal coat.

4. light fixture according to claim 1 is characterized in that described heat dissipation lamp plate is a kind of ceramic substrate or metal substrate.

5. light fixture according to claim 1 is characterized in that described electronic component is located on the second surface of described heat dissipation lamp plate.

6. light fixture comprises:

At least two group LED is characterized in that each LED has a light-emitting area and is used for emitting beam;

One heat dissipation lamp plate, have a first surface and a second surface, be used for the described at least two group LED of installing out of the ordinary, and simultaneously for described at least two group led light sources provide heat radiation, the light-emitting area that it is characterized in that described at least two group LED is respectively perpendicular to first surface and the second surface of described heat dissipation lamp plate;

Two groups of LGPs are located at respectively on the first surface of described heat dissipation lamp plate and the second surface and are contacted the light-emitting area of described at least two group LED, with the light guiding that described at least two group ED send, cause into the light of an area source; And

Two groups of reflecting plates are located at respectively on the first surface and second surface of described heat dissipation lamp plate, and send the outside that is used for the described light fixture of turn light rays that will spread out of by described LGP.

7. light fixture according to claim 6 is characterized in that described at least two group LED comprise that two groups of several LED are respectively along the first surface of described heat dissipation lamp plate and distributing of second surface on every side.

8. light fixture according to claim 6 is characterized in that described two groups of reflecting plates are first surface and the second surface that a kind of reflecting metal coat is formed at respectively described heat dissipation lamp plate.

9. light fixture according to claim 6 is characterized in that the control that is positioned at the controller of described light fixture outside by one, makes the first surface of described lamp plate and the described at least two group LED on the second surface make the luminous or double-side simultaneously of single face.

10. light fixture according to claim 6 is characterized in that described heat dissipation lamp plate, is a kind of ceramic substrate or metal substrate.