WO2011120410A1

WO2011120410A1 - Led lamp

Info

Publication number: WO2011120410A1
Application number: PCT/CN2011/072205
Authority: WO
Inventors: 李建德; 谢宛婷; 王仁晖; 陈奕宏; 戴君仰
Original assignee: 亿广科技(上海)有限公司; 亿光电子工业股份有限公司
Priority date: 2010-04-02
Filing date: 2011-03-28
Publication date: 2011-10-06
Also published as: CN102213369A

Abstract

An LED lamp comprises a heat-radiating element (110), a reflecting cover (120), a light emitting element (130) and a lateral-emission type lens (140). The reflecting cover (120) is provided with an opening (122) to expose the light emitting element (130). The light emitting element (130) is located between the heat-radiating element (110) and the reflecting cover (120). The lateral-emission type lens (140) traverses the opening (122) and is located in the reflecting cover (120), and the light emitting element (130) is located between the lateral-emission type lens (140) and the heat-radiating element (110). The light emitted from the light emitting element (130) passes through the lateral-emission type lens (140), thus its optical path is changed, then the light is projected to the reflecting cover (120) and finally reflected to the outside of the reflecting cover (120). The uniform light illumination is realized using the lamp.

Description

LED luminaires

The present invention relates to a light emitting diode lamp, and more particularly to a light emitting diode lamp that is different from existing lamps. Background technique

Light Emitting Diode (LED) is a tiny solid-state light source. Compared with traditional incandescent bulbs and fluorescent lamps, LEDs can have multiple or multiple combinations. In addition, a single light-emitting diode has the advantages of high light conversion efficiency, low power consumption, high shock resistance, and wasteful recycling and environmentally friendly characteristics. Therefore, LEDs are generally favored by the industry and can be used as an alternative to traditional lighting fixtures. A potential commodity. Summary of the invention

It is an object of the present invention to provide a light-emitting diode luminaire that is uniform in illumination from existing luminaires. The invention provides an LED lamp comprising a heat dissipating component, a reflector, a light emitting component and a side shot lens, the reflector having an opening. The light emitting element is disposed between the heat dissipating component and the reflector, and the opening exposes the light emitting component. The side-projection lens passes through the opening to be located in the reflector, and the light-emitting element is located between the side-projection lens and the heat-dissipating component, wherein the light emitted from the light-emitting component is changed to the light path by the side-projection lens and projected onto the reflector. Reflected again outside the reflector.

In an embodiment of the LED lamp of the present invention, the heat dissipating component includes a heat dissipating body and a plurality of heat dissipating fins, wherein the heat dissipating body has a bowl shape, and the heat dissipating fin is radially disposed on the heat dissipating body, and the heat dissipating body Has a plurality of hollows.

In an embodiment of the LED lamp of the present invention, the light-emitting element comprises a light-emitting diode and a circuit board, wherein the light-emitting diode is disposed on the circuit board, and the portion of the circuit board is disposed between the heat-dissipating body and the reflector between.

In an embodiment of the LED lamp of the present invention, the side-emitting lens includes a lens body and a reflective layer, wherein the lens body has a reflecting surface and a light emitting surface surrounding the reflecting surface, and the reflecting surface is a curved surface. The reflective layer is disposed on the reflective surface, and the light projected by the light-emitting element is reflected by the reflective layer and then emitted from the light-emitting surface. In an embodiment of the LED lamp of the present invention, the light-emitting element and the side-projecting lens further have a gap therebetween.

In an embodiment of the LED lamp of the present invention, the reflector has a first positioning structure, and the side lens has a second positioning structure, and the shapes of the first positioning structure and the second positioning structure are complementary.

In an embodiment of the LED luminaire of the present invention, a plurality of fasteners are also included, and the fastener passes through the illuminating element and locks into the heat dissipating component.

In an embodiment of the LED luminaire of the present invention, a plurality of fasteners are also included, and the fastener passes through the heat dissipating component and is locked into the reflector.

The present invention provides another LED luminaire comprising a heat dissipating component, a reflector, a illuminating component and a side shot lens. The reflector has an opening at a center position corresponding to the reflector. A side-projecting lens passes through the opening to be positioned within the reflector, and the side-projecting lens has a top concave reflecting surface and a side emitting surface surrounding the concave reflecting surface. The light emitting component is disposed in a space formed by the top concave reflecting surface of the side shooting type lens and the side light emitting surface surrounding the concave concave reflecting surface, and is located on the heat dissipating component. The light emitted from the light-emitting assembly is projected to the reflector by the side-projection lens, and the light guided by the side-projection lens is guided in parallel to the outside of the reflector.

In an embodiment of the LED lamp of the present invention, the heat dissipating component includes a heat dissipating body and a plurality of heat dissipating fins, wherein the heat dissipating body has a bowl shape, and the heat dissipating fins are radially disposed on the heat dissipating body, and the heat dissipating body Has a plurality of hollows.

In an embodiment of the LED lamp of the present invention, the light-emitting component comprises a light-emitting diode and a circuit board, wherein the light-emitting diode is disposed on the circuit board, and a part of the circuit board is disposed between the heat-dissipating body and the reflector between.

In an embodiment of the LED lamp of the present invention, the light-emitting component and the side-projecting lens further have a gap therebetween.

In an embodiment of the LED luminaire of the present invention, a plurality of fasteners are further included, and the fastener passes through the illuminating assembly and locks into the heat dissipating component. In an embodiment of the LED luminaire of the present invention, a plurality of fasteners are also included, and the fastener passes through the heat dissipating component and locks into the reflector.

The beneficial technical effect of the present invention compared with the conventional bulb type luminaire is that the illuminating diode lamp of the present invention uses the light emitting diode as a light source, and is matched with the side illuminating lens to achieve a uniform illuminating effect of the illuminating diode illuminator. BRIEF abstract

The above described features and advantages of the present invention will become more apparent from the detailed description of the preferred embodiments of the invention.

1 is an exploded perspective view of an LED lamp according to an embodiment of the invention.

2 is a schematic view of another perspective of the LED lamp of FIG. 1.

3 is a schematic cross-sectional view of the LED lamp of FIG. 1 after assembly and a corresponding distribution of light intensity and angle.

4 is a partially enlarged cross-sectional view showing another embodiment of the light emitting diode lamp. BEST MODE FOR CARRYING OUT THE INVENTION

1 is an exploded perspective view of an LED lamp according to an embodiment of the present invention, and FIG. 2 is a schematic view of another view of the LED lamp of FIG. Referring to FIG. 1 and FIG. 2 simultaneously, the LED lamp 100 includes a heat dissipating component 110, a reflector 120, a light emitting component 130, and a side shot lens 140. The heat dissipating component 110 includes a heat dissipating body 112 and a plurality of heat dissipating fins 114. The heat dissipating body 112 is substantially in the shape of a bowl, and the heat dissipating fins 114 are radially disposed on the heat dissipating body 112. The heat dissipation body 112 and the heat dissipation fins 114 of the embodiment may be integrally formed, or the heat dissipation fins 114 may be assembled to the heat dissipation body 112. In addition, the heat dissipation body 112 and the heat dissipation fins 114 may have a plurality of hollow portions 116 to reduce the overall weight of the heat dissipation element 110.

The shape of the reflector 120 is similar to that of the heat dissipation body 112 of the heat dissipating member 110, and is also substantially bowl-shaped so that the reflector 120 and the heat dissipating member 110 can be superposed on each other to be assembled. The central portion of the reflector 120 has an opening 122, and the reflector 120 also has an inner surface 124 that surrounds the opening 122.

3 is a schematic cross-sectional view of the LED lamp of FIG. 1 after assembly and a corresponding light intensity distribution thereof. Referring to FIG. 1 , FIG. 2 and FIG. 3 , the light-emitting element 130 includes a light-emitting diode 132 and a circuit board 134 . The light-emitting diode 132 is disposed on the circuit board 134 , and the edge portion of the circuit board 134 is interposed. Between the heat dissipation body 112 and the reflector 120, the opening 122 exposes the light emitting diode 132 of the light emitting element 130.

In the above, the side-projection lens 140 covers the light-emitting element 130, and most of the side-projection lens 140 passes through the opening 122 to be located in the reflector 120. In other words, the circuit board 134 of the light-emitting element 130 is in the side-emitting type. The lens 140 and the heat dissipation body 112 of the heat dissipation element 110 are disposed. In detail, the side-projection lens 140 includes a lens body 142 and a reflective layer 144. The lens body 142 has a reflective surface 142a and a light-emitting surface 142b surrounding the reflective surface 142a, and the reflective layer 144 is disposed on the reflective surface 142a. The reflective surface 142a of the present embodiment has a central concave shape and a cross-sectional view to form a curved surface of a V-shaped surface. In other embodiments, the reflective surface 142a may also be a centrally curved curved surface, which is selected according to requirements, and protrudes or The degree of depression can be precisely calculated by the designer.

Referring to FIG. 1 and FIG. 2, when the entire LED lamp 100 is to be assembled, the light-emitting component 130 may be first placed in the heat-dissipating body 112 of the bowl-shaped heat dissipating component 110. The LED luminaire 100 further includes a plurality of fasteners 150, and the circuit board 134 of the illuminating component 130 has a plurality of locking holes 134a, and the locking member 150 passes through the locking hole 134a of the circuit board 134 of the illuminating component 130 and is locked. The heat dissipating body 112 of the heat dissipating component 110 is such that the light emitting component 130 and the heat dissipating component 110 are relatively fixed. The locking hole 134a of the circuit board 134 of the embodiment is a U-shaped hole formed from the edge of the circuit board 134. In other embodiments, the locking hole 134a may also be an opening provided from the inside of the circuit board 134. The apertures are not connected to the edges of the circuit board 134, wherein the shape of the apertures can be varied as desired.

At the same time, the side-projecting lens 140 and the reflector 120 can be assembled. It is noted that the reflector 120 of the embodiment has a first positioning structure 126, and the bottom of the side-projecting lens 140 is provided with a second positioning structure 146, wherein the first positioning structure 126 is a concave point, and the second The positioning structure 146 is a bump so that the side-projecting lens 140 is positioned by the first positioning structure 126 which is a pit and the second positioning structure 146 which is a bump when assembled with the reflector 120 to prevent assembly errors. . In this embodiment, the shapes of the first positioning structure 126 and the second positioning structure 146 are complementary, but in other embodiments, the shapes and forms of the first positioning structure 126 and the second positioning structure 146 may be in accordance with actual needs. change.

Thereafter, the reflector 120 is overlapped with the heat dissipating component 110, and the fastener 150 is locked into the reflector 120 through the heat dissipating component 110 to fix the reflector 120 to the heat dissipating component 110.

The light-emitting diode lamp 100 of the present embodiment uses the light-emitting diode 132 as a light source, which is different from the configuration of the conventional light-bulb type lamp, and can be provided as compared with a bulb-type lamp that generally uses a bulb as a light source. Satisfactory light brightness, greatly improving energy saving and power saving effect.

Referring to FIG. 3, when the LED lamp 100 of the embodiment starts to function, the LED 132 of the LED 130 emits light, and the light enters the lens body 142 of the side lens 140 and is reflected by the reflective layer 144. The light exit surface 142b on the side of the body 142 is further refracted. When the light is reflected by the reflective layer 144, a first blend of light is produced within the lens body 142. Thereafter, the light that is emitted from the lens body 142 enters the dispersing medium (air;) from the dense medium (; solid;), so that the light that is emitted from the lens body 142 is emitted out of the lens body 142 at a large refractive angle, and is fired. To the inner surface 124 of the reflector 120.

It should be noted that the inner surface 124 of the reflector 120 is not a smooth and continuous curved curve in cross section, but a discontinuous and segmental curve or straight line, wherein each segment of the curve or line and a virtual horizontal line V The angle of the clip is obtained by precise calculation, and the purpose is to project the light emitted from the lens body 142 onto the inner surface 124 to be guided and to exit the LED luminaire 100 in a direction perpendicular to the horizontal line V. Of course, after the light is emitted through the light-emitting surface 142b on the side of the lens body 142, the light emitted from the lens body 142 is guided by the inner surface 124 of the reflector 120, and the light is mixed again.

In particular, since the light-emitting diode lamp 100 uses the side-emitting lens 140, the light emitted from the light-emitting diode 132 of the light-emitting element 130 is emitted from the light-emitting surface 142b of the side of the lens body 142 of the side-projecting lens 140, and the light is first Focusing on both sides, as shown in the distribution of light intensity and angle in Figure 3, there is a higher light intensity peak near the positive and negative 80 degrees. Therefore, after passing through the reflection of the reflector 120, the light will be effectively collimated. Therefore, the luminous intensity of the LED lamp 100 is evenly distributed for the user's visual perception. In other words, the reflective layer 144 of the side-projecting lens 140 effectively emits light from the light-emitting surface 142b located on the side of the lens body 142 and uniformly mixes the light within the reflector 120. The LED lamp 100 of the present embodiment does not have any The light directly passes through the reflecting surface 142a of the lens body 142 to be emitted, and further causes a yellow light phenomenon caused by a strong central portion of the light-emitting diode lamp 100 and an uneven peripheral edge.

In particular, a gap G is formed between the light-emitting element 130 and the side-projecting lens 140. The gap G is formed by the lens body 142, the light-emitting diode 132, and the circuit board 134. The presence of the gap G makes the illuminating element 130 and the side-projecting lens 140 easier to align and assemble. Further, the bonding glue 160 may be filled in the gap G so that the side-projecting lens 140 and the light-emitting element 130 can be fixed to each other. Moreover, it is also possible to infuse the diffusion particles 162 in the bonding glue 160 to further enhance the effect of the light mixing, as shown in FIG.

In summary, the LED lamp of the present invention has a different configuration than the conventional lamp type lamp, and The provided brightness and energy saving effect are also better than the previous bulb type lamps. In addition, the use of side-illuminated lenses allows LED luminaires to emit light over a wide range, avoiding halo. Furthermore, the presence of the gap, the light-emitting element and the side-emitting lens have the advantage of easy alignment and assembly.

While the present invention has been disclosed by way of example, the invention is not intended to be limited thereto, and various modifications and substitutions can be made without departing from the spirit and scope of the invention. Therefore, the scope of the invention is defined by the scope of the appended claims.

Claims

Rights request

1. A light emitting diode lamp comprising:

a heat dissipating component;

a reflector having an opening;

a side shot lens disposed in the reflector, and the side shot lens is disposed in the reflector through the opening;

a light-emitting element disposed between the heat-dissipating component and the side-emitting lens, wherein the opening exposes the light-emitting component,

The light emitted from the light-emitting element is changed to a light path by the side-projecting lens, projected onto the reflector, and then reflected outside the reflector.

2. The LED lamp of claim 1, wherein the heat dissipating component comprises: a heat dissipating body;

A plurality of heat dissipating fins are radially disposed on the body, wherein the body has a plurality of hollow portions.

3. The LED lamp of claim 2, wherein the heat dissipation body is in the shape of a bowl.

The illuminating device of claim 1 , wherein the illuminating element comprises: a light emitting diode;

A circuit board, wherein the light emitting diode is disposed on the circuit board, and a portion of the circuit board is sandwiched between the heat dissipation body and the reflective cover.

5. The LED light fixture of claim 1, wherein the side-emitting lens comprises:

a lens body having a reflecting surface and a light emitting surface surrounding the reflecting surface;

A reflective layer is disposed on the reflective surface, and the light projected by the light-emitting element is reflected by the reflective layer and emitted from the light-emitting surface.

6. The LED lamp of claim 5, wherein the reflecting surface is a curved surface.

7. The LED lamp of claim 1, wherein the light-emitting element and the side-projecting lens further have a gap therebetween.

The LED lamp of claim 1 , wherein the reflector has a first positioning structure, and the side lens has a second positioning structure, and the first positioning structure and the second The shape of the positioning structure is complementary.

9. The LED light fixture of claim 1, further comprising a plurality of fasteners, and the fasteners pass through the light emitting element and lock into the heat dissipating component.

10. The LED light fixture of claim 1, further comprising a plurality of fasteners, and the fasteners pass through the heat dissipating component and lock into the reflector.

11. A light emitting diode lamp comprising:

a heat dissipating component;

a reflector having an opening, wherein the opening is disposed at a center position corresponding to the heat dissipating component; a side-emitting lens disposed in the reflector, and the side-projecting lens passes through the opening to be located in the reflector The side-projecting lens has a top concave reflecting surface and a side light emitting surface surrounding the top concave reflecting surface;

a light-emitting component disposed in a space formed by the top concave reflecting surface of the side-emitting lens and the side light-emitting surface surrounding the top concave reflecting surface, and located on the heat dissipating component, the heat dissipating component and the side shot Between the type of lenses, the opening exposes the light emitting component, wherein light emitted from the light emitting component is guided to the reflective cover by the side-projecting lens, and the light guided by the side-projecting lens is parallel The ground is directed outside the reflector.

12. The LED light fixture of claim 11, wherein the heat dissipating component comprises:

a heat sink body;

13. The LED lamp of claim 12, wherein the heat dissipation body is in the shape of a bowl.

14. The LED light fixture of claim 11, wherein the lighting assembly comprises:

a light emitting diode;

The LED lamp of claim 11 , further comprising a gap between the light-emitting component and the side-projecting lens.

The LED lamp of claim 11 , wherein the reflector has a first positioning structure, and the side-projection lens has a second positioning structure, and the first positioning structure and the second The shape of the positioning structure is complementary.

17. The LED light fixture of claim 11, further comprising a plurality of fasteners, and the fasteners pass through the light assembly and lock into the heat dissipation assembly.

18. The LED light fixture of claim 11, further comprising a plurality of fasteners, and the fasteners pass through the heat dissipation assembly and lock into the reflector.