Lighting apparatus

Patent metadata

Field	Value
Publication number	US-12228271-B2
Application number	US-202318518803-A
Country	US
Kind code	B2
Filing date	Nov 24, 2023
Priority date	Oct 7, 2022
Publication date	Feb 18, 2025
Grant date	Feb 18, 2025

Abstract

A lighting apparatus includes a base plate, a driver module, a light source, a mechanical switch, a main housing, and a manual switch. The driver module is disposed on a top surface of the base plate. The light source is also disposed on the top surface of the base plate. The mechanical switch is disposed on the base plate. The mechanical switch has multiple states to be selected. The driver reads a selected state to control the light source. The main housing encloses the base plate. The manual switch is disposed on the main housing. An operating part of the manual switch is exposed outside the main housing to be operated by a user. When a user moves the operating part of the manual switch, the connecting part of the manual switch carries the mechanical switch to change the selected state.

First claim

The invention claimed is:

1. A lighting apparatus, comprising:
a base plate;
a driver module disposed on a top surface of the base plate;
a light source also disposed on the top surface of the base plate;
a mechanical switch wherein the mechanical switch is coupled to the driver module, wherein the mechanical switch has multiple states to be selected, wherein the driver reads a selected state to control the light source;
a main housing for enclosing the base plate; and
a manual switch disposed to the main housing, wherein an operating part of the manual switch is exposed outside the main housing to be operated by a user, wherein a connecting part of the manual switch is coupled to the mechanical switch, wherein when a user moves the operating part of the manual switch, the connecting part of the manual switch carries the mechanical switch to change the selected state, wherein the mechanical switch is moved for coupling a different resistor combination to multiple transistors corresponding to different selected states, wherein the transistors respectively determine driving currents supplied to multiple types of LED modules of the light source associated to the coupled resistor combination to emit a mixed light corresponding to the selected state.

2. The lighting apparatus of claim 1 , wherein a switch hole is disposed on the base plate for fixing the mechanical switch.

3. The lighting apparatus of claim 2 , wherein the connecting part and the mechanical switch are coupled on a side of the base plate opposite to the top surface.

4. The lighting apparatus of claim 3 , wherein the connecting part of the manual switch is a switch groove, wherein a protruding pin of the mechanical switch is inserted into the switch groove.

5. The lighting apparatus of claim 3 , wherein the connecting part is a protruding lever inserting into the mechanical switch.

6. The lighting apparatus of claim 1 , wherein the mechanical switch is coupled to the base plate.

7. The lighting apparatus of claim 1 , wherein the multiple types of LED modules comprise a first LED set emitting a first light of a first color temperature and comprises a second LED set emitting a second light of a second color temperature.

8. The lighting apparatus of claim 7 , wherein there are more than five resistor combinations to select from the mechanical switch.

9. The lighting apparatus of claim 8 , wherein the multiple transistors comprise a first transistor selectively connects to one of five first resistors and comprise a second transistor selectively connects to one of five second resistors, wherein the connected first resistor and the connected second resistor determine a current ratio between a first driving current supplied to the first LED set and a second driving current supplied to the second LED set.

10. The lighting apparatus of claim 9 , wherein a Zeiner diode is coupled to gates of the first transistor and the second transistor.

11. The lighting apparatus of claim 1 , wherein the main housing is a cup shape with a light opening, wherein the base plate is disposed on an inner side of the main housing facing to the light opening.

12. The lighting apparatus of claim 11 , wherein a power socket is placed on a back cover of the main housing, wherein a power wire is inserted to the power socket for guiding an AC power directly to the driver module disposed on the base plate.

13. The lighting apparatus of claim 11 , wherein a reflector cup is placed for reflecting a light of the light source to the light opening, wherein the reflector has a trumpet shape with a first reflector opening facing to the light source and with a second reflector opening facing to the light opening, wherein the second reflector opening is larger than the first reflector opening, wherein the reflector cup separates the light source from the driver module on the base plate, wherein the reflector cup conceals the driver module behind the reflector cup so as the driver module is not visible from the light opening.

14. The lighting apparatus of claim 11 , wherein the main housing has a rim part extending from the light opening for concealing an installation hole for installing the lighting apparatus, wherein an antenna is placed on the rim part connecting to the driver module for receiving an external command.

15. The lighting apparatus of claim 14 , wherein an augment switch is integrated with the antenna and is placed on a bottom surface of the rim part exposed to be operated by a user when the lighting apparatus is installed in the installation hole.

16. The lighting apparatus of claim 1 , wherein the driver module comprises multiple driver circuits placed in a peripheral area of the base plate, wherein the light source is placed in a central area of the base plate.

17. The lighting apparatus of claim 16 , wherein the multiple driver circuits comprise an electrolysis capacitor, wherein the electrolysis capacitor has two feet connected to the base plate, wherein the two feet of the electrolysis capacitor are bent more than 40 degrees.

18. The lighting apparatus of claim 17 , wherein the electrolysis capacitor has a capacitor body kept non-contact to the top surface of the base plate.

19. The lighting apparatus of claim 18 , wherein a silicone glue is disposed between the capacitor body and the top surface of the base plate.

20. The lighting apparatus of claim 1 , wherein the driver module has two charging stages, wherein an inductor is charged first and supplying a driving current to the light source, wherein the inductor charges a capacitor and the capacitor supplies the driving current to the light source.

Assignees

• Leedarson Lighting Co Ltd

Inventors

• Chen Yizhen
• Dong Yongzhe
• Gao Shuxing
• Tang Zhenyu
• Chen Huiwu
• Zheng Bihong
• Lin Weize
• Su Zhiwei

Classifications

• F21S8/04 Primary

  intended only for mounting on a ceiling or the like overhead structures (F21S8/02 takes precedence; {details of ceiling bases F21V21/03}) · CPC title

• F21Y2115/10

  Light-emitting diodes [LED] · CPC title

• H05B45/38

  using boost topology · CPC title

• H05B45/46

  having LEDs disposed in parallel lines · CPC title

• H05B45/397

  Current mirror circuits · CPC title