Lighting apparatus

Abstract

A lighting apparatus includes a wireless circuit board, a driver circuit board, a light source plate, a metal cover and a metal housing. The wireless circuit board is mounted with a wireless circuit. The wireless circuit has a first reference ground terminal. The driver circuit board is mounted with a driver circuit. The driver circuit has a second reference ground terminal. The light source plate is mounted with a LED module. The light source plate is placed on a top side of the metal cover. The first reference ground terminal and the second reference ground terminal are connected to the metal cover as a reference ground. The metal housing and a bottom side of the metal cover forms a container space for holding the driver circuit board and a first portion of the wireless circuit board.

Claims

1. A lighting apparatus, comprising: a wireless circuit board mounted with a wireless circuit, wherein the wireless circuit has a first reference ground terminal; a driver circuit board mounted with a driver circuit, wherein the driver circuit has a second reference ground terminal; a light source plate mounted with a LED module; a metal cover, wherein the light source plate is placed on a top side of the metal cover, wherein the first reference ground terminal and the second reference ground terminal are connected to the metal cover as a reference ground; and a metal housing, wherein the metal housing and a bottom side of the metal cover forms a container space for holding the driver circuit board and a first portion of the wireless circuit board, wherein a second portion of the wireless circuit board extends through an antenna hole of the light source plate to be above the top side of the light source plate.

2. The lighting apparatus of claim 1, wherein a voltage dependent resistor is disposed between the first reference ground terminal to the metal cover.

3. The lighting apparatus of claim 2, wherein the first reference ground terminal has a contact pad for collecting a wireless reference ground end, wherein the contact pad is connected to the reference ground of the metal cover via a connector.

4. The lighting apparatus of claim 3, wherein the connector has an elastic pin for elastically engaging the metal cover.

5. The lighting apparatus of claim 3, wherein the voltage dependent resistor is placed between the contact pad and wireless circuit.

6. The lighting apparatus of claim 3, wherein an insulation area is placed between the contact pad and other area of the wireless circuit board.

7. The lighting apparatus of claim 6, wherein a first diameter of the insulation area is smaller than a half of the contact pad.

8. The lighting apparatus of claim 3, wherein the insulation area is a ring shape.

9. The lighting apparatus of claim 3, wherein the insulation area has a sawtooth border.

10. The lighting apparatus of claim 1, wherein the metal housing is coupled to an Edison cap for connecting to an Edison socket.

11. The lighting apparatus of claim 10, further comprising a bulb shell enclosing the second portion of the wireless circuit board.

12. The lighting apparatus of claim 1, wherein the wireless circuit board has a third reference ground terminal, wherein the wireless circuit has a first wireless module connecting to the first reference ground terminal and a second wireless module connecting to the third reference ground terminal, wherein the first wireless module and the second wireless module correspond to different wireless protocols.

13. The lighting apparatus of claim 12, wherein the wireless circuit board has a signal terminal connecting to the driver circuit board.

14. The lighting apparatus of claim 1, wherein the light source plate has a metal substrate facing to the metal cover.

15. The lighting apparatus of claim 1, wherein the metal cover and the metal housing are coupled via a rivet joint.

16. The lighting apparatus of claim 1, wherein the second portion of the wireless circuit board is covered with a reflective layer.

17. The lighting apparatus of claim 1, wherein the second portion of the wireless circuit board is transparent.

18. The lighting apparatus of claim 17, wherein an antenna is attached on the second portion of the wireless circuit board.

19. The lighting apparatus of claim 17, wherein a fluorescent layer is attached on the second portion of the wireless circuit board.

20. The lighting apparatus of claim 1, wherein a static electricity of the driver circuit is guided to the metal cover.

Description

BRIEF DESCRIPTION OF DRAWINGS

(1) FIG. 1 illustrates a lighting apparatus.

(2) FIG. 2 illustrates a wireless circuit board example.

(3) FIG. 3 illustrates a driver circuit board and a wireless circuit board.

(4) FIG. 4 illustrates a light bulb example.

(5) FIG. 5 illustrates a connector example.

(6) FIG. 6 shows a lighting apparatus embodiment.

(7) FIG. 7 shows a contact pad example.

(8) FIG. 8 shows another contact pad example.

DETAILED DESCRIPTION

(9) In FIG. 6, a lighting apparatus includes a wireless circuit board 601, a driver circuit board 603, a light source plate 602, a metal cover 613 and a metal housing 608.

(10) The wireless circuit board 601 is mounted with a wireless circuit 614. For example, a Wi-Fi module is placed on the wireless circuit board 601 for providing a Wi-Fi connection with other devices. Other wireless protocols may be implemented depending on different needs.

(11) The wireless circuit 614 has a first reference ground terminal 620.

(12) The driver circuit board 603 is mounted with a driver circuit 615. The driver circuit 615 converts an external power source, e.g. a 110V AC power to one or multiple driving currents supplied to the LED 607 on the light source plate 602. The driver circuit 615 may also decode an operation on a wall switch connecting to the lighting apparatus to turn-on, turn-off, or change a light parameter of the lighting apparatus.

(13) In addition, the driver circuit 615 may receive a command from the wireless circuit 614 and controls the LED module 607 corresponding to the command. For example, the command may instruct a color temperature, a color, a light intensity or other light parameters.

(14) The driver circuit 615 has a second reference ground terminal 621.

(15) The light source plate 602 is mounted with a LED module 607.

(16) The light source plate 602 is placed on a top side 6131 of the metal cover 613.

(17) The first reference ground terminal 620 and the second reference ground terminal 621 are connected to the metal cover 613 as a reference ground. The metal cover 613 is further connected to the metal housing 608, e.g. a metal tube, to form a larger ground unit.

(18) The metal housing 608 and a bottom side 6132 of the metal cover 613 forms a container space 6133 for holding the driver circuit board 603 and a first portion 604 of the wireless circuit board 601.

(19) A second portion 605 of the wireless circuit board 601 extends through an antenna hole 6021 of the light source plate 602 to be above the top side 6131 of the light source plate 602.

(20) In some embodiments, a voltage dependent resistor 610 is disposed between the first reference ground terminal 620 to the metal cover 613.

(21) In some embodiments, the first reference ground terminal 620 has a contact pad 612 for collecting a wireless reference ground end, e.g. the nodes associated to the ground of the wireless circuit.

(22) The contact pad 612 is connected to the reference ground of the metal cover 613 via a connector 609.

(23) In some embodiments, the connector 609 has an elastic pin for elastically engaging the metal cover.

(24) FIG. 5 shows such an example. The connector 1061 has a head part 1062 connected to the contact pad and an elastic pin as a tail part 1063 pressing the metal cover as mentioned above.

(25) In some embodiments, the voltage dependent resistor 610 is placed between the contact pad 612 and wireless circuit 614.

(26) In some embodiments, an insulation area 611 is placed between the contact pad 610 and other area of the wireless circuit board 601.

(27) In FIG. 8, a first diameter 801 of the insulation area, i.e. the width of the insulation belt, is smaller than a half of the contact pad, i.e. the diameter 801 of the contact pad.

(28) In some embodiments, the insulation area is a ring shape, as illustrated in FIG. 7.

(29) In FIG. 8, the insulation area has a sawtooth border 803, as illustrated in FIG. 8. The sawtooth 803 enhances condensing of static electricity.

(30) In some embodiments, the metal housing is coupled to an Edison cap for connecting to an Edison socket, as illustrated in FIG. 4.

(31) In some embodiments, the lighting apparatus may also include a bulb shell 600 enclosing the second portion of the wireless circuit board.

(32) In some embodiments, the wireless circuit board has a third reference ground terminal. This is similar to the illustration of the first reference ground terminal and thus is not explicitly illustrated in the drawing. FIG. 6 is sufficient to illustrate such terminal by reference to the first reference ground terminal.

(33) The wireless circuit has a first wireless module connecting to the first reference ground terminal and a second wireless module connecting to the third reference ground terminal.

(34) The first wireless module and the second wireless module correspond to different wireless protocols.

(35) In some embodiments, the wireless circuit board has a signal terminal connecting to the driver circuit board.

(36) In some embodiments, the light source plate has a metal substrate facing to the metal cover.

(37) In some embodiments, the metal cover and the metal housing are coupled via a rivet joint.

(38) In FIG. 6, the second portion of the wireless circuit board is covered with a reflective layer 6051.

(39) In some embodiments, the second portion of the wireless circuit board is transparent.

(40) In some embodiments, an antenna 606 is attached on the second portion of the wireless circuit board 601.

(41) In some embodiments, a fluorescent layer 6052 is attached on the second portion 605 of the wireless circuit board 601. When light enters the fluorescent layer 6051, a conversion is performed on light characteristic to create a special light pattern.

(42) In some embodiments, a static electricity of the driver circuit is guided to the metal cover 605.

(43) FIG. 1 illustrates a lighting apparatus embodiment.

(44) In FIG. 1, the lighting apparatus includes a wireless circuit board 100, a light source plate 200, a metal cover 300, a driver plate 400 and a metal housing 500.

(45) FIG. 2 shows the wireless circuit plate 100. The wireless circuit plate 100 has a wireless circuit 104, a signal terminal 105 and a reference ground terminal. The reference ground terminal has a contact pad 101, an insulation area 103 and a voltage dependent resistor 102.

(46) FIG. 3 shows the driver plate 400 is connected to the wireless circuit plate 100. There are two connectors 106 for connecting the reference ground terminal 107 to the metal cover.

(47) FIG. 4 shows a bulb shell 600 covering the second portion of the wireless circuit plate 100 that protrudes on a top side of the light source plate 200. The metal housing 700 encloses the driver circuit and first portion of the wireless circuit plate 100.

(48) The foregoing description, for purpose of explanation, has been described with reference to specific embodiments. However, the illustrative discussions above are not intended to be exhaustive or to limit the invention to the precise forms disclosed. Many modifications and variations are possible in view of the above teachings.

(49) The embodiments were chosen and described in order to best explain the principles of the techniques and their practical applications. Others skilled in the art are thereby enabled to best utilize the techniques and various embodiments with various modifications as are suited to the particular use contemplated.

(50) Although the disclosure and examples have been fully described with reference to the accompanying drawings, it is to be noted that various changes and modifications will become apparent to those skilled in the art. Such changes and modifications are to be understood as being included within the scope of the disclosure and examples as defined by the claims.