Lighting fixture for a light emitting diode, LED, lighting device

Patent metadata

Field	Value
Publication number	US-11457519-B2
Application number	US-201917297024-A
Country	US
Kind code	B2
Filing date	Nov 18, 2019
Priority date	Nov 30, 2018
Publication date	Sep 27, 2022
Grant date	Sep 27, 2022

Abstract

A lighting fixture for a Light Emitting Diode, LED, lighting device, said fixture comprising an LED driver arranged to receive an Alternating Current, AC, mains voltage as input and provide an LED current to drive said LED lighting device; at least one socket comprising receiving means, arranged to receive and hold an LED lamp arranged to emit light, said socket further comprising a biased Double Pole Double Throw, DPDT, switch, comprising one set of input terminals and two sets of output terminals, wherein the output of said LED driver is connected to said input terminals of said biased DPDT switch, wherein a first of said two output terminals of said biased DPDT switch are short circuited, and wherein said biased DPDT switch is arranged to toggle between a short circuit position wherein said input terminals of said biased DPDT switch are connected to said first set of output terminals, and a connected position wherein said input terminals of said biased DPDT switch are connected to a second of said two output terminals, thereby connecting said LED driver to said LED lighting device; wherein said biased DPDT switch is further arranged to toggle from said short circuit position to said connected position upon insertion of said LED lighting device into said receiving means of said socket. A corresponding method of toggling a switch is also presented herein.

First claim

The invention claimed is:

1. A lighting fixture for a Light Emitting Diode (LED);
lighting device, said fixture comprising:
an LED driver arranged to receive an Alternating Current (AC) mains voltage as input and to provide an LED current to drive said LED lighting device;
at least one socket comprising receiving means, arranged to receive an LED lighting device arranged to emit light, said at least one socket further comprising a biased Double Pole Double Throw (DPDT) switch, comprising one set of input terminals and two sets of output terminals, wherein an output of said LED driver is connected to said input terminals of said biased DPDT switch, wherein a first of said two sets of output terminals of said biased DPDT switch are short circuited, and wherein said biased DPDT switch is arranged to toggle between:
a short circuit position wherein said input terminals of said biased DPDT switch are connected to said first set of output terminals, and
a connected position wherein said input terminals of said biased DPDT switch are connected to a second of said two sets of output terminals, thereby connecting said LED driver to said LED lighting device;

wherein said biased DPDT switch is further arranged to toggle from said short circuit position to said connected position upon insertion of said LED lighting device into said receiving means of said socket.

2. The lighting fixture according to claim 1 , wherein said LED driver is arranged to operate in a low power mode upon detecting a short circuit at its terminals.

3. The lighting fixture according to claim 1 , wherein said biased DPDT switch is further arranged to toggle from said connected position to said short circuit position when said LED lighting device is removed from said receiving means of said socket.

4. The lighting fixture according to claim 1 , wherein said biased DPDT switch is spring loaded.

5. The lighting fixture according to claim 1 , wherein said receiving means is arranged to receive a dummy element, said dummy element being arranged to emulate an LED lighting device without emitting light.

6. The lighting fixture according to claim 5 comprising at least two sockets arranged to receive one LED lighting device per socket, such that said DPDT switch of at least one socket is in said short circuit position until each socket receives either said LED lighting device or said dummy element.

7. The lighting fixture according to claim 6 , wherein said at least two sockets are connected in a parallel configuration such that said LED current from said LED driver is distributed between said at least two sockets.

8. A method of toggling a switch in a lighting fixture for a Light Emitting Diode (LED) lighting device, said fixture comprising an LED driver arranged to receive an Alternating Current, AC, mains voltage as input and provide an LED current to drive said LED lighting device, and at least one socket comprising receiving means, arranged to receive an LED lighting device arranged to emit light, said socket further comprising a biased Double Pole Double Throw (DPDT) switch, comprising one set of input terminals and two sets of output terminals, wherein an output of said LED driver is connected to said input terminals of said biased DPDT switch, wherein a first of said two output terminals of said biased DPDT switch are short circuited, said method comprising the steps of:
receiving, by said receiving means, said LED lighting device, and
toggling, caused by said receiving of said LED lighting device, said biased DPDT switch- from a short circuit position wherein said input terminals of said biased DPDT switch are connected to said first set of output terminals, to a connected position wherein said input terminals of said biased DPDT switch are connected to a second of said two output terminals, thereby connecting said LED driver to said LED lighting device.

9. The method according to claim 8 , wherein said LED driver operates in a low power mode upon detecting a short circuit at its terminals.

10. The method according to claim 8 , wherein said biased DPDT switch toggles from said connected position to said short circuit position when said LED lighting device is removed from said receiving means of said socket.

11. The method according to claim 8 , wherein said receiving means is arranged to receive a dummy element, said dummy element being arranged to emulate an LED lighting device without emitting light.

Assignees

• Signify Holding Bv

Inventors

• Leermakers Remco Christianus Wilhelmus

Classifications

• H05B45/50

  responsive to malfunctions or undesirable behaviour of LEDs; responsive to LED life; Protective circuits · CPC title

• H01R33/96 Primary

  with switch operated by engagement or disengagement of coupling · CPC title

• H01R13/7032

  making use of a separate bridging element directly cooperating with the terminals · CPC title

• F21V25/02

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

• H05B45/52 Primary

  in a parallel array of LEDs · CPC title