CN201731331U

CN201731331U - An LED spherical light emitting device

Info

Publication number: CN201731331U
Application number: CN2010202353804U
Authority: CN
Inventors: 陈泽平; 刘传胜; 樊汉豪
Original assignee: Zhongshan Hanrun Electronics Co ltd
Current assignee: Zhongshan Hanrun Electronics Co ltd
Priority date: 2010-06-21
Filing date: 2010-06-21
Publication date: 2011-02-02
Anticipated expiration: 2020-06-21

Abstract

The utility model discloses an LED spherical light-emitting device, comprising a base, a circuit substrate and an arc-shaped light-transmitting cover mounted on the base, and LED lamp beads mounted on the circuit substrate, characterized in that the top surface of the LED lamp beads is at an equal distance from the inner wall of the light-transmitting cover. The LED lamp beads are installed in a spherical arrangement, and the curvature of the spherical surface formed is consistent with the curvature of the light-transmitting cover. The surface of the LED lamp is ensured to be equidistant from the surface of the light-transmitting cover. The light emitted by the LED lamp is refracted through the light-transmitting cover. The light-emitting angle of the lamp is increased, overcoming the disadvantage of the LED due to its small light-emitting angle; the light is more uniform and the light efficiency is high, thereby achieving the purpose of more energy saving.

Description

A kind of LED sphere light-emitting device

Technical field

The utility model relates to a kind of LED sphere light-emitting device.

Background technology

This product of LED lamp comes out for a long time, and it is applied in our life and is seen everywhere, the billboard in roadside for example, and indicator lamp of all kinds on the household electrical appliance and the back lighting on the cell phone keyboard etc. all are to have adopted the LED lamp as illumination.

Because monomer LED is a spot light, and lighting angle own is narrower, the at present big LED of portion lamp all is flat ray structure, and a flat luminous monomer LED that is meant is welded direct to luminous collection of LED of formation on the pcb board.The luminous collection of LED spotlight effect when planar alignment is fine, but because lighting angle is subjected to the restriction of the lighting angle of led chip, the area of its high light is very little and tangible hot spot can occur.In addition, because of the most surface of LED lamp affixed to the ceiling or LED ball bubble all is that certain radian is arranged, flat-plate light source can not send out by diffuser plate uniformly, causes light inhomogeneous, and light efficiency is low, and this has also limited the application scenario of LED illumination.

Summary of the invention

It is bigger that the technical problems to be solved in the utility model provides a kind of lighting angle, luminous even, the LED sphere light-emitting device that light efficiency is higher.

The technical scheme that its technical problem that solves the utility model adopts is:

LED sphere light-emitting device, comprise pedestal, be installed in circuit substrate on the pedestal and arc diffuser, be installed in a plurality of LED lamp pearls on the circuit substrate, it is characterized in that: described LED lamp pearl end face equates with diffuser inwall distance.

On the diffuser inwall some the projector distance to the circuit substrate reduce with the extension of diffuser cambered surface, be installed in the also corresponding thereupon reduction of height with the LED lamp pearl of subpoint relevant position.

LED lamp pearl comprises the lamp base that is contained on the LED lamp pearl, reduces to make the corresponding reduction of height of LED lamp pearl by lamp base length.

Described circuit substrate comprises pedestal and lamp pearl installing plate, and described lamp pearl installing plate is installed on the pedestal.

Described pedestal is the plastics frustum of a cone of band ladder; Described lamp pearl installing plate be with pedestal 21 on the circuit board of the corresponding ring shape of step size, lamp pearl installing plate is installed in it on the corresponding cascaded surface of size.

LED lamp pearl evenly distributes on circuit substrate.

Diffuser is the acryl material of high light transmittance.

The beneficial effects of the utility model are: LED lamp pearl by with sphere arrangement mode install, the radian of formed sphere is consistent with the radian of diffuser.Guarantee that LED lamp surface is equidistant with the diffuser surface.The light that makes the LED lamp send reflects away through diffuser.Increased the lighting angle of light fixture, overcome LED because the little shortcoming of lighting angle; Light is even more, light efficiency is high, thereby reaches purpose of energy saving more.

Description of drawings

Below in conjunction with drawings and Examples the utility model is further specified.

Fig. 1 is the whole schematic views of LED sphere light-emitting device;

Fig. 2 is the cross section view of LED sphere light-emitting device;

Fig. 3 is the whole schematic views of the another kind of embodiment of LED sphere light-emitting device;

Fig. 4 is the cross section view of the another kind of embodiment of another kind of LED sphere light-emitting device.

The specific embodiment

See figures.1.and.2, a kind of LED sphere light-emitting device provided by the utility model, comprise pedestal 1, be installed in circuit substrate 2 on the pedestal 1 and arc diffuser 3, be installed in a plurality of LED lamp pearls 4 on the circuit substrate, LED lamp pearl 4 comprises the lamp base 41 that is contained on the LED lamp pearl 4.Described circuit substrate 2 is circular, and LED lamp pearl 4 evenly distributes on circuit substrate 2; On diffuser 3 inwalls some the projector distance to the circuit substrate 2 reduce with the extension of diffuser 3 cambered surfaces, the height that is installed in the LED lamp pearl 4 of subpoint relevant position reduces the also corresponding thereupon reduction of length by lamp base 41, this forms and diffuser 3 corresponding to radians the whole top of LED lamp pearl 4, has guaranteed that LED lamp pearl 4 end faces equate with diffuser 3 inwalls distance.Adopt such structure, increased the lighting angle of light fixture, light efficiency is higher, thereby reaches purpose of energy saving more.Especially, the use of diffuser 3 have the acryl of high light transmittance, make reflect away through diffuser that afterwards light is more even.

Fig. 3 and Fig. 4 have shown another kind of embodiment of the present utility model, it comprises pedestal 1, be installed in circuit substrate 2 on the pedestal 1 and arc diffuser 3, be installed in the LED lamp pearl 4 on the circuit substrate.Described circuit substrate 2 comprises pedestal 21 and lamp pearl installing plate 22, described pedestal 21 is the plastics frustum of a cone of band ladder, described lamp pearl installing plate 22 be with pedestal 21 on the circuit board of the corresponding ring shape of step size, lamp pearl installing plate 22 is installed on the big or small with it corresponding cascaded surface, and LED lamp pearl 4 is installed on the lamp pearl installing plate 22.The height of ladder corresponding reduction with the extension of diffuser 3 cambered surfaces on the pedestal 21, this forms and diffuser 3 corresponding to radians the whole top of the LED lamp pearl 4 that is installed on the lamp pearl installing plate 22, has guaranteed that LED lamp pearl 4 end faces equate with diffuser 3 inwalls distance.A kind of effect of embodiment before such structure equally also reaches.

Claims

1. A LED spherical light-emitting device, comprising a base (1), a circuit substrate (2) installed on the base (1) and an arc-shaped translucent cover (3), a plurality of LEDs installed on the circuit substrate The lamp bead (4) is characterized in that the distance between the top surface of the LED lamp bead (4) and the inner wall of the light-transmitting cover (3) is equal.

2. A spherical LED light-emitting device according to claim 1, characterized in that: the projection distance from a point on the inner wall of the light-transmitting cover (3) to the circuit substrate (2) varies with the extension of the arc surface of the light-transmitting cover (3) The height of the LED lamp bead (4) installed at the position corresponding to the projection point also decreases accordingly.

3. A spherical LED light-emitting device according to claim 2, characterized in that: the LED lamp bead (4) includes a lamp pin (41) mounted on the LED lamp bead (4), through the length of the lamp pin (41) Reducing the height of the LED lamp bead (4) reduces accordingly.

4. The LED spherical light-emitting device according to claim 2, characterized in that: the circuit board (2) includes a base frame (21) and a lamp bead mounting plate (22), and the lamp bead mounting plate (22 ) is installed on the base frame (21).

5. A spherical LED light-emitting device according to claim 4, characterized in that: the base frame (21) is a truncated cone with steps; the lamp bead mounting plate (22) is a On the circle-shaped circuit board with the corresponding size of the step, the lamp bead mounting plate (22) is installed on the step surface with the corresponding size.

6. The spherical LED lighting device according to claim 1, characterized in that: the LED lamp beads (4) are uniformly distributed on the circuit substrate (2).

7. The LED spherical light-emitting device according to claim 1, characterized in that: the light-transmitting cover (3) is acrylic material with high light-transmitting property.