Color temperature-adjustable lamp device

Patent metadata

Field	Value
Publication number	US-2026020122-A1
Application number	US-202519193292-A
Country	US
Kind code	A1
Filing date	Apr 29, 2025
Priority date	May 29, 2024
Publication date	Jan 15, 2026
Grant date	—

Abstract

Provided is a color temperature-adjustable lamp device that includes a first LED lamp assembly, having LEDs and light emitted therefrom of a first color temperature, a second LED lamp assembly with light emitted therefrom of a second color temperature, and the second color temperature is different from the first color temperature, a color temperature adjustment portion, connected in series with one of the lamp assemblies, the color temperature adjustment portion includes a diode, an LED and a voltage regulator tube, and a manual switch assembly that controls the turning on and off of the lamp assemblies, and after connecting the color temperature adjustment portion in series with one of the lamp assemblies, a light-emitting assembly is formed together by a first lamp string and a second lamp string, and the light-emitting assembly is connected between a voltage source end and a grounding end.

First claim

1 . A color temperature-adjustable lamp device, comprising:
a first LED lamp assembly, having one or more LEDs, wherein light emitted by the first LED lamp assembly has a first color temperature; a second LED lamp assembly, having LEDs, the number of which is the same as the number of the LEDs in the first LED lamp assembly, wherein light emitted by the second LED lamp assembly has a second color temperature, and the second color temperature is different from the first color temperature; a color temperature adjustment portion, connected in series with at least one of the first LED lamp assembly and the second LED lamp assembly, the color temperature adjustment portion comprising at least one of a diode, an LED and a voltage regulator tube; and a manual switch assembly, for controlling the turning-on and turning-off of the first LED lamp assembly and the second LED lamp assembly, wherein after connecting the color temperature adjustment portion in series with at least one of the first LED lamp assembly and the second LED lamp assembly, a light-emitting assembly is formed together by a formed first lamp string where the first LED lamp assembly is located and a formed second lamp string where the second LED lamp assembly is located, and the light-emitting assembly is connected between a voltage source end and a grounding end.

2 . The color temperature-adjustable lamp device according to claim 1 , wherein the color temperature adjustment portion comprises:
a first color temperature adjustment portion, connected between the second LED lamp assembly and the grounding end.

3 . The color temperature-adjustable lamp device according to claim 2 , wherein the manual switch assembly comprises:
a first manual switch assembly, connected between the first LED lamp assembly and the grounding end; and a second manual switch assembly, connected between the first color temperature adjustment portion and the grounding end.

4 . The color temperature-adjustable lamp device according to claim 3 , wherein
the first LED lamp assembly comprises one first LED string or two or more first LED strings connected in parallel, each of the first LED strings comprising one or more first LEDs connected in series between the voltage source end and the grounding end, the first LEDs having the first color temperature; and the first manual switch assembly comprises one or more first switches, each of the first switches being connected between each of the first LED strings and the grounding end.

5 . The color temperature-adjustable lamp device according to claim 4 , wherein
the second LED lamp assembly comprises one second LED string or two or more second LED strings connected in parallel, each of the second LED strings comprising one or more second LEDs connected in series between the voltage source end and the grounding end, the second LEDs having the second color temperature; the first color temperature adjustment portion comprises one or more third LEDs connected between the second LED string and the grounding end on each of the second LED strings; and the second manual switch assembly comprises one or more second switches, and each of the second switches is connected between the third LEDs and the grounding end on each of the second LED strings.

6 . The color temperature-adjustable lamp device according to claim 4 , wherein
the second LED lamp assembly comprises one second LED string or two or more second LED strings connected in parallel, each of the second LED strings comprising one or more second LEDs connected in series between the voltage source end and the grounding end, the second LEDs having the second color temperature; the first color temperature adjustment portion comprises one or more first diodes connected between the second LED string and the grounding end on each of the second LED strings; and the second manual switch assembly comprises one or more second switches, and each of the second switches is connected between the first diodes and the grounding end on each of the second LED strings.

7 . The color temperature-adjustable lamp device according to claim 3 , wherein
the first LED lamp assembly comprises two or more first LED strings connected in parallel, each of the first LED strings comprising one or more first LEDs connected in series between the voltage source end and the grounding end, the first LEDs having the first color temperature; and the first manual switch assembly comprises one first switch, wherein the first switch is connected between a first common node of the two or more first LED strings and the grounding end, and the first common node is located between the voltage source end and the grounding end.

8 . The color temperature-adjustable lamp device according to claim 7 , wherein
the second LED lamp assembly comprises two or more second LED strings connected in parallel, each of the second LED strings comprising one or more second LEDs connected in series between the voltage source end and the grounding end, the second LEDs having the second color temperature; the first color temperature adjustment portion comprises one or more third LEDs connected between a second common node of the two or more second LED strings and the grounding end, wherein the second common node is located between the voltage source end and the grounding end; and the second manual switch assembly comprises one second switch, the second switch being connected between the third LEDs and the grounding end.

9 . The color temperature-adjustable lamp device according to claim 7 , wherein
the second LED lamp assembly comprises two or more second LED strings connected in parallel, each of the second LED strings comprising one or more second LEDs connected in series between the voltage source end and the grounding end, the second LEDs having the second color temperature; the first color temperature adjustment portion comprises one or more diodes connected between a second common node of the two or more second LED strings and the grounding end, wherein the second common node is located between the voltage source end and the grounding end; and the second manual switch assembly comprises one second switch, the second switch being connected between the diodes and the grounding end.

10 . The color temperature-adjustable lamp device according to claim 5 , wherein the color temperature adjustment portion further comprises:
a second color temperature adjustment portion, connected between the first LED lamp assembly and the grounding end, the second color temperature adjustment portion comprising one or more fourth LEDs respectively connected between each of the first LED strings and the grounding end, wherein the manual switch assembly further comprises one or more third switches, and each of the third switches is connected between the fourth LEDs and the grounding end on each of the first LED strings.

11 . The color temperature-adjustable lamp device according to claim 5 , wherein the color temperature adjustment portion further comprises:
a second color temperature adjustment portion, connected between the first LED lamp assembly and the grounding end, the second color temperature adjustment portion comprising one or more second diodes respectively connected between each of the first LED strings and the grounding end, wherein the manual switch assembly further comprises one or more third switches, and each of the third switches is connected between the second diodes and the grounding end on each of the first LED strings.

12 . The color temperature-adjustable lamp device according to claim 10 , wherein the manual switch assembly further comprises one or more fourth switches, each o

Assignees

• Savant Tech Llc

Inventors

• Zhou Tianci
• Liu Zhichao
• Liu Chengbin

Classifications

• H05B45/46

  having LEDs disposed in parallel lines · CPC title

• H05B45/48

  having LEDs organised in strings and incorporating parallel shunting devices · CPC title

• H05B45/34

  Voltage stabilisation; Maintaining constant voltage · CPC title

• H05B47/155 Primary

  Coordinated control of two or more light sources · CPC title

• H05B45/20 Primary

  Controlling the colour of the light · CPC title