Light bulb apparatus with antenna

Patent metadata

Field	Value
Publication number	US-11592146-B2
Application number	US-202117150660-A
Country	US
Kind code	B2
Filing date	Jan 15, 2021
Priority date	Jan 16, 2020
Publication date	Feb 28, 2023
Grant date	Feb 28, 2023

Abstract

A lighting apparatus includes a metal plate, an insulation layer, a light source, a driver circuit and a wireless circuit. The metal plate includes an antenna area and a base area. The antenna area and the base area are on a same plane. The insulation layer is placed on the metal plate. The insulation layer has a top side and a bottom side. The metal plate is disposed on the bottom side of the insulation layer. The light source includes a LED module. The light source is disposed on the top side of the insulation layer. The driver circuit is electrically connected to the light source via a first conductive path. The wireless circuit is electrically connected to the antenna area of the metal plate via a second conductive path.

First claim

The invention claimed is:

1. A lighting apparatus, comprising:
a metal plate comprising an antenna area and a base area, wherein the antenna area and the base area are on a same plane;
an insulation layer placed on the metal plate, wherein the insulation layer has a top side and a bottom side, the metal plate is disposed on the bottom side of the insulation layer;
a light source comprising a LED module, where the light source is disposed on the top side of the insulation layer;
a driver circuit electrically connected to the light source via a first conductive path; and
a wireless circuit electrically connected to the antenna area of the metal plate via a second conductive path, wherein the insulation layer is placed on a top metal side of the metal plate, the driver circuit is placed on a bottom side of the metal plate, the top metal side is opposite to the bottom metal side.

2. The lighting apparatus of claim 1 , wherein the antenna area is an elongated shape, the elongated shape has a first end, a second end and a lateral side, the first end is connected to the base area, the second end is a free end, an elongated gap is disposed between the lateral side and the base area.

3. The lighting apparatus of claim 2 , wherein the metal plate is consisted of the base area and the antenna area, the base area and the antenna area are parts of an unibody metal unit.

4. The lighting apparatus of claim 3 , wherein an antenna surface of the antenna area and a base surface of the base area are on the same plane.

5. The lighting apparatus of claim 2 , wherein an elongated insulation area of the insulation layer covers the antenna area.

6. The lighting apparatus of claim 5 , wherein the wireless circuit is stacked upon the second conductive path.

7. The lighting apparatus of claim 6 , wherein the second conductive path has an antenna electrode for electrically connecting the wireless circuit to the antenna area.

8. The lighting apparatus of claim 7 , wherein an antenna excitation foil is disposed for connecting the antenna electrode to the antenna area.

9. The lighting apparatus of claim 6 , wherein the second conductive path has a ground terminal for connecting the wireless circuit to a ground.

10. The lighting apparatus of claim 1 , wherein the first conductive path and the second conductive path are disposed on the insulation layer.

11. The lighting apparatus of claim 10 , wherein the second conductive path has an antenna excitation foil electrically connected to the antenna area of the metal plate.

12. The lighting apparatus of claim 11 , wherein the wireless circuit comprises a receiver circuit for receiving a first wireless signal from the antenna area and a transmitter circuit for transmitting a second wireless signal from the antenna area.

13. The lighting apparatus of claim 10 , further comprising a covering layer, wherein the covering layer is made of an electrical insulation material, the first conductive path and the second conductive path are disposed between the covering layer and the insulation layer.

14. The lighting apparatus of claim 13 , wherein the covering layer has a light opening for exposing the LED module of the light source.

15. The lighting apparatus of claim 13 , wherein the wireless circuit and the LED module have portions protruding above a cover surface of the covering layer.

16. The lighting apparatus of claim 1 , wherein the wireless circuit is integrated with the driver circuit on a driver plate.

17. The lighting apparatus of claim 16 , wherein the driver plate has multiple pins passing through the metal plate and the insulation layer to insert into a socket for electrically connecting to the light source.

18. The lighting apparatus of claim 16 , further comprising a bulb cap and a light passing cover, wherein the bulb cap encloses the driver plate, the bulb cap has an Edison cap for receiving an external power supplied to the driver circuit, the LED module emits a light passing through the light passing cover.

19. The lighting apparatus of claim 18 , further comprising a connector ring with a first ring end connected to the light passing cover and with a second ring end connected to the bulb cap.

Assignees

• Xiamen Leedarson Lighting Co Ltd

Inventors

• Zou Renhua
• Wu Chihhsien
• You Yuankai
• Guo Shuifa
• Zhao Fanglei

Classifications

• H05B47/19

  via wireless transmission · CPC title

• F21Y2105/10

  comprising a two-dimensional [2D] array of point-like light-generating elements · CPC title

• H05B45/00

  Circuit arrangements for operating light-emitting diodes [LED] · CPC title

• H01Q13/10 Primary

  Resonant slot antennas · CPC title

• F21K9/238 Primary

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