Downlight apparatus

Patent metadata

Field	Value
Publication number	US-12163641-B2
Application number	US-202318212759-A
Country	US
Kind code	B2
Filing date	Jun 22, 2023
Priority date	Sep 9, 2020
Publication date	Dec 10, 2024
Grant date	Dec 10, 2024

Abstract

A downlight apparatus includes a light source, a light holder, a driver box, a fixing bracket and two torsion springs. The light holder is used for placing the light source. The light holder has a first side defining a light opening. The driver box is placed on a second side of the light holder. The driver box contains a driver for converting an external power to a driving current supplied to the light source to emit a light from the light opening. The fixing bracket is coupled to the light holder for fixing to an installation cavity. The fixing bracket has a bottom plate and two connector plate. The bottom plate is fixed to the second side of the light holder. The two connector plates are disposed vertically to the bottom plate. Each connector plate has two side units. Each torsion spring has an elastic center and two arms.

First claim

The invention claimed is:

1. A downlight apparatus, comprising:
a light source;
a light holder for placing the light source, the light holder has a first side defining a light opening;
a driver box placed on a second side of the light holder, wherein the driver box contains a driver for converting an external power to a driving current supplied to the light source to emit a light from the light opening;
a fixing bracket coupled to the light holder for fixing to an installation cavity, wherein the fixing bracket has a bottom plate and two connector plate, wherein the bottom plate is fixed to the second side of the light holder, wherein the two connector plates are disposed vertically to the bottom plate, wherein each connector plate has two side units; and
two torsion springs, wherein a top plate of the driver box has a wire socket and a manual switch, wherein the wire socket is connected to a power wire and the manual switch is used for adjusting a setting of the light source, wherein the top plate of the driver box further has a rotation switch for continuously setting a maximum light intensity of the light source.

2. The downlight apparatus of claim 1 , wherein each torsion spring has an elastic center and two arms, wherein the two arms are elastically spreading with different angles with respect to the elastic center, wherein the two torsion springs are attached to a lateral side of the two connector plates, wherein either the two torsion springs are elastically squeezed to engage the installation cavity or the side units of the connector plates are elastically squeezed to engage the installation cavity.

3. The downlight apparatus of claim 1 , wherein the installation cavity is a cavity in a junction box.

4. The downlight apparatus of claim 3 , wherein the driver box has an elastic hook, wherein when the central hole of the bottom plate passes reaches a bottom edge of the driver box, the elastic hook locks the bottom plate to the second side of the light holder.

5. The downlight apparatus of claim 1 , wherein the bottom plate of the fixing bracket has a central hole for the driver box to pass through.

6. The downlight apparatus of claim 1 , wherein the bottom plate has multiple connection holes for fixing the bottom plate to the installation cavity with bracket connectors.

7. The downlight apparatus of claim 6 , wherein the connection hole is a key hole with an larger entrance and a smaller siding track, wherein the bracket connector enters the larger entrance and then stays in the sliding track to fix the bottom bracket to the installation cavity.

8. The downlight apparatus of claim 1 , wherein the connector plates are detachable from the bottom plate.

9. The downlight apparatus of claim 8 , wherein the connector plates are fixed to the bottom plate with screws.

10. The downlight apparatus of claim 1 , wherein the two side units are two folded plates folding with respect to a main body of the connector plate.

11. The downlight apparatus of claim 10 , wherein a folding angle of the folded plate with respect to the main body of the connector plate is larger than 90 degrees.

12. The downlight apparatus of claim 1 , wherein the connector plates are made as the same metal piece as the bottom plate and are folded vertically with respect to the bottom plate.

13. The downlight apparatus of claim 1 , wherein the fixing bracket has a scraper for scraping a portion of electric insulation layer on the second side of the light holder for electrically connecting the light holder to ground.

14. The downlight apparatus of claim 1 , wherein the light source comprises multiple LED modules distributed in a first range, wherein the bottom plate has a larger size than the first range to carry heat of the first range outside the first range.

15. The downlight apparatus of claim 1 , wherein the bottom plate has multiple bracket connectors, wherein the second side of the light holder has corresponding multiple holder connectors, wherein the bracket connectors are respectively slided to engage the holder connectors by rotating the light holder with respect to the fixing bracket.

16. The downlight apparatus of claim 15 , wherein a reverse lock structure prevents the bracket connector accidently escape from the holder connector.

17. The downlight apparatus of claim 16 , wherein the bracket connector is vertical to the holder connector.

18. The downlight apparatus of claim 1 , wherein the light source has a light source plate mounted with LED modules, wherein the light source plate is connected to the light holder to connect to the ground.

19. The downlight apparatus of claim 1 , wherein multiple metal shafts are used for electrically connecting the light source plate and the light holder.

Assignees

• Xiamen Eco Lighting Co Ltd

Inventors

• Huang Huiyong
• Tang Zhenyu
• Gao Shuxing

Classifications

• F21V23/06

  the elements being coupling devices {, e.g. connectors} · CPC title

• F21V21/049

  Mounting arrangements for attaching lighting devices to the ceiling, the lighting devices being recessed in a false or stretched ceiling · CPC title

• F21V21/047

  Mounting arrangements with fastening means engaging the inner surface of a hole in a ceiling or wall, e.g. for solid walls or for blind holes · CPC title

• F21V21/26

  Pivoted arms · CPC title

• G02B6/0085

  Means for removing heat created by the light source from the package · CPC title