Dimming track lamp

Patent metadata

Field	Value
Publication number	US-11221129-B2
Application number	US-202016835135-A
Country	US
Kind code	B2
Filing date	Mar 30, 2020
Priority date	Feb 26, 2020
Publication date	Jan 11, 2022
Grant date	Jan 11, 2022

Abstract

A dimming track lamp has a detachable assembly housing with a power supply track, a control circuit board electrically connected with the power supply track, a lamp body arranged on the assembly housing, a printed circuit board arranged in the lamp body, a light source on the printed circuit board and an optical element arranged in the light output direction of the light source. The control circuit board has a power supply module which is electrically connected with the power supply track, a signal input module, a signal processing module for analyzing and calculating the input signal and generating a control signal, and a signal output module for outputting the control signal to the printed circuit board. The light source has a warm light source and a cold light source, the control signal is used to control the light output of the warm light source and the cold light source.

First claim

What is claimed is:

1. A dimming track lamp, comprising an assembly housing ( 200 ) which is in detachable connection with the power supply track ( 100 ), a control circuit board ( 300 ) is in the assembly housing ( 200 ) and electrically connected with the power supply track ( 100 ), a lamp body ( 400 ) arranged on the assembly housing ( 200 ), a printed circuit board ( 500 ) arranged in the lamp body ( 400 ), a light source ( 600 ) on the printed circuit board ( 500 ) and an optical element ( 700 ) arranged in the light output direction of the light source ( 600 ),
wherein the control circuit board ( 300 ) comprises: a power supply module ( 301 ) which is electrically connected with the power supply track ( 100 ), a signal input module ( 302 ), a signal processing module ( 303 ) for analyzing and calculating the input signal and generating the control signal, and a signal output module ( 304 ) for outputting the control signal to the printed circuit board ( 500 );
the lamp body comprises a shell ( 401 ) provided with a light outlet ( 402 ); a rotary seat ( 403 ) is fixed in the shell ( 401 ), and the printed circuit board ( 500 ) is arranged on one side of the rotary seat ( 403 ) which faces toward the light outlet ( 402 ); a rotary connecting rod ( 404 ) having an end connected with the rotary seat ( 403 ) so that the lamp body ( 400 ) can rotate vertically around the end, and an opposite end is connected with the assembly housing ( 200 ) so that the lamp body ( 400 ) can rotate horizontally around the opposite end;
the assembly housing ( 200 ) is a thin strip, comprising a base plate ( 201 ), a left plate ( 202 ), a right plate ( 203 ) and a top plate ( 204 ) extending along the lengthwise direction, and the top plate ( 204 ) is provided with a mounting hole which is rotationally matched with the end of the rotary connecting rod ( 404 ); and
the light source ( 600 ) comprises a warm light source ( 601 ) and a cold light source ( 602 ), the control signal is used to control the light output of the warm light source ( 601 ) and the cold light source ( 602 ).

2. The dimming track lamp according to claim 1 , characterized in that, the signal input module ( 302 ) comprises a brightness adjusting knob ( 3021 ) and a color temperature adjusting knob ( 3022 ) arranged on the assembly housing ( 200 ).

3. The dimming track lamp according to claim 2 , characterized in that, the assembly housing ( 200 ) is a thin strip, which can move in the power supply track ( 100 ) along the length direction, the brightness adjusting knob ( 3021 ) and the color temperature adjusting knob ( 3022 ) are arranged at both ends of the assembly housing ( 200 ), and the lamp body ( 400 ) is arranged in the middle of the assembly housing ( 200 ).

4. The dimming track lamp according to claim 1 , characterized in that, the signal output module ( 304 ) comprises a DC-DC unit ( 3041 ) that connected with the signal processing module ( 303 ), a first switching unit ( 3042 ) connected with the DC-DC unit ( 3041 ) for controlling the light output of the warm light source ( 601 ), and a second switching unit ( 3043 ) connected with the DC-DC unit ( 3041 ) for controlling the light output of the cold light source ( 602 ), the first switching unit ( 3042 ) and the second switching unit ( 3043 ) are also connected with the signal processing module ( 303 ).

5. The dimming track lamp according to claim 4 , characterized in that, the first switching unit ( 3042 ) comprises a first resistor (R 1 ), a second resistor (R 2 ), a first NPN type triode (Q 1 ) and a first PMOS transistor (Q 2 ), wherein the first resistor (R 1 ) and the second resistor (R 2 ) are in series, the other end of the first resistor (R 1 ) is connected with the positive output terminal of DC-DC unit ( 3041 ), the other end of the second resistor (R 2 ) is connected with the collector of the first NPN type triode (Q 1 ); the emitter of the first NPN type triode (Q 1 ) is grounded, the base is connected with the signal processing module ( 303 ); the gate of the first PMOS transistor (Q 2 ) is connected on the connection line between the first resistor (R 1 ) and the second resistor (R 2 ), the source is connected with the positive output terminal of the DC-DC unit ( 3041 ), the drain is connected with the positive pole of the warm light source ( 601 ), and the negative pole of the warm light source ( 601 ) is connected with the negative output terminal of the DC-DC unit ( 3041 ).

6. The dimming track lamp according to claim 4 , characterized in that, the second switching unit ( 3043 ) comprises a third resistor (R 3 ), a four resistor (R 4 ), a five resistor (R 5 ), a second NPN type triode (Q 3 ) and a second PMOS transistor (Q 4 ), wherein the third resistor (R 3 ), and the four resistor (R 4 ) are connected in series, the other end of third resistor (R 3 ) is connected with the positive output terminal of DC-DC unit ( 3041 ), and the other end of four resistor (R 4 ) is connected with the collector of the second NPN type triode (Q 3 ); the emitter of the second NPN type triode (Q 3 ) is grounded, the base is connected with the signal processing module ( 303 ); the gate of the second PMOS transistor (Q 4 ) is connected on the connection line between the third resistor (R 3 ) and the four resistor (R 4 ), the source is connected with the positive output terminal of the DC-DC unit ( 3041 ), the drain is connected with the positive terminal of the cold light source ( 602 ); the negative terminal of the cold light source ( 602 ) is connected with the negative output terminal of the DC-DC unit ( 3041 ); one end of the five resistor (R 5 ) is connected with the positive output terminal of the DC-DC unit ( 3041 ), and the other end is connected with the drain of the second PMOS transistor (Q 4 ).

7. The dimming track lamp according to claim 1 , characterized in that, the end of the rotary connecting rod ( 404 ) connected with the rotary seat ( 403 ) is a ball head structure ( 4041 ), and the rotary seat ( 403 ) comprises a first part ( 4031 ) and a second part ( 4032 ) of a spherical cavity ( 4033 ) which can accommodate the rotation of the ball head structure ( 4041 ) after splicing.

8. The dimming track lamp according to claim 7 , characterized in that, the interior of the spherical cavity ( 4033 ) has an elastic member ( 406 ) butted between the ball head structure ( 4041 ) and the spherical cavity ( 4033 ).

9. The dimming track lamp according to claim 1 , characterized in that, the assembly housing ( 200 ) comprises a rotation limiting member ( 408 ) preventing the excessive rotation of the rotary connecting rod ( 404 ).

10. The dimming track lamp according to claim 9 , characterized in that, the rotation limiting member ( 408 ) is a limiting gasket located at the inner side of the base plate ( 201 ), the rotary connecting rod ( 404 ) is provided with a first limiting protrusion ( 4044 ), and the limiting gasket is provided with a second limiting protrusion ( 4081 ) to resist the first limiting protrusion ( 4044 ) to prevent the rotary connecting rod ( 404 ) from excessively rotating.

11. The dimming track lamp according to claim 10 , characterized in that, the outer edge of the limiting gasket extends along the length direction of the assembly housing ( 200 ) to form a third limiting protrusion ( 4082 ), and the two sides of the third limiting protrusion ( 4082 ) are respectively butted with the inner sides of the left plate ( 202 ) and the right plate ( 203 ), so that the limiting gasket can rotate finitely.

Assignees

• Self Electronics Co Ltd
• Lin Wanjiong
• Self Electronics Usa Corp

Inventors

• Fang Lei
• Yu Jianfeng
• He Zuping
• Dong Jianguo
• Xu Kai
• Yang Jun

Classifications

• F21Y2113/13

  comprising an assembly of point-like light sources · CPC title

• F21V23/02

  the elements being transformers, impedances {or power supply units, e.g. a transformer with a rectifier} · CPC title

• F21V21/29

  employing universal joints · CPC title

• F21V23/04

  the elements being switches (safety devices F21V25/00) · CPC title

• F21V21/14

  Adjustable mountings · CPC title