LED bulb lamp

Patent metadata

Field	Value
Publication number	US-10781979-B2
Application number	US-201515308995-A
Country	US
Kind code	B2
Filing date	Sep 25, 2015
Priority date	Sep 28, 2014
Publication date	Sep 22, 2020
Grant date	Sep 22, 2020

Abstract

An LED lamp bulb, comprising: an LED lamp substrate ( 5 ) having at least one LED light source ( 51 ) mounted thereon; and an electrical isolation assembly ( 6 a ) disposed on the LED lamp substrate ( 5 ), wherein, the electrical isolation assembly ( 6 a ) electrically isolates the LED lamp substrate's charged part from outside of the LED lamp substrate ( 5 ). The LED lamp bulb can protect user from contacting the charged part inside the lamp housing ( 7 ) when the LED lamp bulb is broken and thereby avoid electric shock accidents. In addition, the directions of the light emitted by the LED light sources ( 51 ) can be changed to achieve different kinds of lighting effects.

First claim

What is claimed is:

1. An LED bulb lamp, comprising:
a base;
a power supply installed in the base and having an output wire, the output wire having an end;
a lamp housing disposed on the base;
an LED lamp substrate disposed on the base, the LED lamp substrate having a plurality of powered parts and a plurality of LED light sources mounted on a top surface of the LED lamp substrate, the LED lamp substrate further having a first via hole, the output wire of the power supply electrically connecting with the LED lamp substrate through the first via hole, the powered parts further comprising the end of the output wire; and
an electrical isolation assembly disposed on the LED lamp substrate electrically isolating the powered parts on the top surface of the LED lamp substrate from outside of the electrical isolation assembly when the powered parts are powered, and installed inside the lamp housing, the electrical isolation assembly comprising an electrical isolation unit covering the top surface of the LED lamp substrate, and including a light processing unit having a main body,
wherein a cavity is formed inside the main body by arranging the main body in an encircling manner around a central axis, and the main body has a light receiving surface including a bottom surface parallel to the top surface of the LED lamp substrate and overlapping the LED light sources from a top-down view, to be facing the LED light sources to receive light from the LED light sources, wherein the cavity is formed inside a circular shape formed by said bottom surface and allows light to pass therethrough, and the cavity extends along the central axis from at least a height of a top surface of the LED light sources toward the lamp housing above the LED light sources;
wherein the electrical isolation assembly is an integrally formed unit, and
wherein bottom surfaces of the LED light sources are at a first vertical level, at least a portion of the electrical isolation assembly is at the first vertical level, and wherein the cavity is open at its top to provide an open path between the LED light sources and a top of the lamp housing disposed above the cavity.

2. The LED bulb lamp of claim 1 , wherein a side surface of the main body forms a surface of the cavity, and wherein each LED light source of the LED light sources is both directly below said bottom surface of the light receiving surface from a top-down view and is exposed to the cavity.

3. The LED bulb lamp of claim 2 , wherein the cavity is open toward the lamp housing above the LED light sources, a portion of light from each LED light source of the LED light sources enters the main body through said bottom surface of the light receiving surface and another portion of light from each LED light source of the LED light sources enters the cavity directly, without passing through the main body.

4. The LED bulb lamp of claim 3 , wherein the LED light sources on the LED lamp substrate are arranged under said bottom surface of the light receiving surface of the main body in an encircling manner.

5. The LED bulb lamp of claim 4 , wherein the electrical isolation assembly further comprises a fixing element disposed on the bottom portion of the electrical isolation assembly and integrally formed with the electrical isolation assembly, and the electrical isolation assembly is fixed inside the lamp housing by the fixing element.

6. The LED bulb lamp of claim 5 , wherein the fixing element is disposed on the electrical isolation unit.

7. The LED bulb lamp of claim 3 , the LED lamp substrate including two sets of LED light sources, wherein the first set of LED light sources are arranged under said bottom surface of the light receiving surface of the main body in an encircling manner around the central axis, the second set of LED light sources are arranged within the cavity.

8. The LED bulb lamp of claim 3 , wherein the powered parts electrically connect the LED lamp substrate to the power supply.

9. The LED bulb lamp of claim 1 , wherein the electrical isolation unit and the light processing unit are integrally formed.

10. An LED bulb lamp, comprising:
a base;
a power supply installed in the base and having an output wire, the output wire having an end;
a lamp housing disposed on the base;
an LED lamp substrate disposed on the base, the LED lamp substrate having a plurality of powered parts and having a plurality of LED light sources mounted on a top surface of the LED lamp substrate; and
an electrical isolation assembly disposed on the LED lamp substrate electrically isolating the powered parts on the top surface of the LED lamp substrate from outside of the electrical isolation assembly when the powered parts are powered, and installed inside the lamp housing, the electrical isolation assembly comprising an electrical isolation unit covering and extending to at least an outer edge of the top surface of the LED lamp substrate and a light processing unit having a main body,
wherein a cavity is formed in a space within the main body by arranging the main body to form outer sides of the cavity, and the main body has a light receiving surface parallel to the top surface of the LED lamp substrate and facing and vertically overlapping the LED light sources to receive light from the LED light sources,
wherein the cavity is open at its top to provide an open path between the LED light sources and a top of the lamp housing disposed above the cavity,
wherein the electrical isolation assembly is an integrally formed unit, and
wherein a bottom surface of the electrical isolation assembly covers a top surface of the LED lamp substrate.

11. The LED bulb lamp of claim 10 , wherein a side surface of the main body forms the outer surface of the cavity and a bottom surface of the main body forms the light receiving surface.

12. The LED bulb lamp of claim 11 , wherein a mouth of the cavity is formed adjacent to the LED light sources, a portion of light from the LED light sources enters the main body through the light receiving surface and another portion of light from the LED light sources enters the cavity through the mouth.

13. The LED bulb lamp of claim 10 , wherein the LED light sources on the LED lamp substrate are arranged under the light receiving surface of the main body in an encircling manner.

14. The LED bulb lamp of claim 10 , wherein the electrical isolation assembly further comprises a fixing element disposed on the bottom portion of the electrical isolation assembly and integrally formed with the electrical isolation assembly, and the electrical isolation assembly is fixed inside the lamp housing by the fixing element.

15. The LED bulb lamp of claim 10 , wherein:
the light receiving surface facing the LED light sources directly contacts the LED light sources.

16. The LED bulb lamp of claim 10 , wherein:
a portion of light from the LED light sources reaches the lamp housing by entering the main body of the electrical isolation assembly at the light receiving surface, and a portion of light from the LED light sources reaches the cavity directly.

17. The LED bulb lamp of claim 16 , wherein:
the cavity includes a space above a center of the LED lamp substrate.

18. The LED bulb lamp of claim 10 , wherein:
the top surface of the LED lamp substrate is electrically isolated from outside of the LED lamp substrate by being fully covered, without any gaps exposed to the lamp housing, by the electrical isolation assembly.

19. An LED bulb lamp, comprising:
a base;
a power supply installed in the base and having an output w

Assignees

• Jiaxing Super Lighting Electric Appliance Co Ltd

Inventors

• Jiang Tao
• Li Liqin
• Zeng Zhixiang
• Ye Qifeng
• Li Shuanglang
• Lin Zhaosong
• Wang Dingkai
• Zhu Weijun

Classifications

• F21V25/00 Primary

  Safety devices structurally associated with lighting devices (gas- tight or water-tight arrangements F21V31/00; in general F16P; protective circuit arrangements per se H02H7/00) · CPC title

• F21V7/24

  characterised by the material · CPC title

• F21V3/00

  Globes; Bowls; Cover glasses (with refracting properties F21V5/00; with reflecting properties F21V7/00; characterised by cooling arrangements F21V29/506) · CPC title

• F21V25/02 Primary

  coming into action when lighting device is disturbed, dismounted, or broken · CPC title

• F21K9/238

  Arrangement or mounting of circuit elements integrated in the light source · CPC title