CN211625035U

CN211625035U - Switch three-color light-changing LED ceiling lamp

Info

Publication number: CN211625035U
Application number: CN202020173372.5U
Authority: CN
Inventors: 刘达权; 丁国红
Original assignee: Jiangmen Jianglei Photoelectric Technology Co ltd
Current assignee: Jiangmen Jianglei Photoelectric Technology Co ltd
Priority date: 2020-02-14
Filing date: 2020-02-14
Publication date: 2020-10-02
Anticipated expiration: 2030-02-14

Abstract

A switch three-color light-changing LED ceiling lamp comprises a bottom plate, wherein a circuit board is mounted on the bottom plate, LED lamp beads with two different colors are welded on the circuit board, a lampshade covering the LED lamp beads and the circuit board is further mounted on the bottom plate, a light-changing control chip is further arranged on the circuit board, the light-changing control chip is provided with a positive electrode port, a negative electrode port, a first constant current output port and a second constant current output port, and the positive electrode port and the negative electrode port are respectively connected to a positive electrode power supply and a negative; the cathodes of the two LED lamp beads with different colors are respectively connected to the first constant current output port and the second constant current output port, and the anodes of the two LED lamp beads with different colors are connected to the anode power supply. The utility model discloses because be provided with the light control chip in the circuit board, consequently, the utility model discloses adjust luminance does not need the segmentation dimmer, can realize the three-colour through ordinary switch operation and change the light, has advantages such as with low costs and equipment are simple.

Description

Switch three-color light-changing LED ceiling lamp

Technical Field

The utility model relates to a LED lamps and lanterns specifically disclose a switch three-colour becomes light LED ceiling lamp.

Background

The existing LED light-changing lamp comprises two LED lamp beads with different colors, and the two lamp beads are controlled by a subsection controller to be independently lightened or simultaneously lightened, so that the lamp can realize three color changes. However, the use of a segment controller in a product is costly, the product assembly is complicated, and installation outside the product requires professional electricians for installation.

SUMMERY OF THE UTILITY MODEL

Therefore, it is necessary to provide a variable light LED lamp which is low in cost, simple to install and convenient to use, in view of the problems in the prior art.

In order to solve the prior art problem, the utility model discloses a switch three-color becomes light LED ceiling lamp, which comprises a bottom plate, a circuit board is installed on the bottom plate, LED lamp beads with two different colors are welded on the circuit board, a lampshade covering the LED lamp beads and the circuit board is also installed on the bottom plate, a light-changing control chip is also arranged on the circuit board, the light-changing control chip is provided with a positive and negative electrode port, a first constant current output port and a second constant current output port, and the positive and negative electrode ports are respectively connected to a positive and negative electrode power supply; the cathodes of the two LED lamp beads with different colors are respectively connected to the first constant current output port and the second constant current output port, and the anodes of the two LED lamp beads with different colors are connected to the anode power supply.

The utility model has the advantages that: the utility model is provided with a light-changing control chip in the circuit board, the light-changing control chip is provided with a first constant current output port and a second constant current output port, the cathodes of two LED lamp beads with different colors are respectively connected to the first constant current output port and the second constant current output port, and the anodes of the two LED lamp beads with different colors are connected to a positive power supply; therefore, the utility model discloses adjust luminance does not need the segmentation dimmer, can realize the three-colour through ordinary switch operation and change the light, has advantages such as with low costs and equipment are simple.

Drawings

Fig. 1 is a schematic view of an assembly structure of the present invention.

Fig. 2 is a schematic view of the external structure of the present invention.

Fig. 3 is a schematic diagram of the circuit structure of the present invention.

Detailed Description

For further understanding of the features and technical means, as well as the specific objects and functions of the present invention, the present invention will be described in further detail with reference to the accompanying drawings and detailed description.

Refer to fig. 1 and 2. The utility model provides a switch three-colour becomes light LED ceiling lamp, includes bottom plate 11, install circuit board 3 on the bottom plate 11, the welding has the different LED lamp pearl 4 of two kinds of colours on the circuit board 3, still install the cage cover on the bottom plate 11 the lamp shade 12 of LED lamp pearl 4 and circuit board 3, be connected with the power cord 2 of connecting external power source on the circuit board 3. The LED lamp beads 4 comprise a plurality of positive white LED lamp beads 41 and a plurality of warm white LED lamp beads 42.

Referring to fig. 3, a switch three-color light-changing LED ceiling lamp circuit structure. The white light LED lamp beads 41 are connected in series to form a white light series unit 410, and the warm white light LED lamp beads 42 are connected in series to form a warm white light series unit 420. The positive white light series unit 410 and the warm white light series unit 420 are formed in a manner that two LED lamp beads 41/42 are connected in parallel to form a parallel module 411/422, and a plurality of parallel modules 411/422 are connected in series to form the positive white light series unit 410 and the warm white light series unit 420. The positive white light LED lamp beads 41 and the warm white light LED lamp beads 42 are arranged on the circuit board 3 in a staggered and uniform mode. The utility model discloses a rectifier circuit can set up in external drive power supply, also can set up on circuit board 3, the utility model discloses preferred the latter. Specifically, a patch rectifier bridge 5 is arranged on the circuit board 3, the input end of the patch rectifier bridge 5 can be connected with 220V or 110V alternating current mains supply, and the positive and negative output ends of the patch rectifier bridge 5 are connected with a light-changing control chip 6 and the positive white light series unit 410 and the warm white light series unit 420. The pin specification of the light-changing control chip 6 is shown in the following table:

pin name	Description of the invention
		VDD	Analog power port
VCC	Digital power port
		REXT1	A first current setting port
REXT2	Second current setting port
		OUT1	First constant current output port
OUT2	Second constant current output port
		NC	Suspension foot
VIN	Positive electrode port
		GND	Negative terminal

The pins of the analog power supply port VDD and the digital power supply port VCC of the light-changing control chip 6 are respectively connected to the negative electrode of the patch rectifier bridge 5 through capacitors C1 and C2. The capacitor C1 is used for controlling the delay time of the first turn-on of the lamp tube, the capacitor C2 is used for controlling the dimming time sequence, and when the voltage of VCC rises to 3V or above, the digital logic is in a normal working state; when the voltage of VCC drops below 2.6V, the digital logic is automatically cleared to make the IC in the initial state. The light-changing control chip 6 is further provided with a first current setting port REXT1 and a second current setting port REXT2, the first current setting port REXT1 and the second current setting port REXT2 are respectively connected to the negative electrode of the patch rectifying bridge 5 through resistors R1 and R2, and the resistors R1 and R2 are respectively used for adjusting the output power of the first constant-current output port OUT1 and the second constant-current output port pin OUT 2. The positive pole of the patch rectifier bridge 5 is connected to the positive pole port VIN of the chip through a resistor R3, the resistor R3 is used for adjusting the input power of the light-changing control chip 6, and the negative pole of the patch rectifier bridge 5 is connected to the negative pole port GND of the chip. The anode of the LED series unit 410/420 is connected to the anode of the patch rectifier bridge 5, and the cathode of the LED series unit 410/420 is connected to the first constant current output port OUT1 and the second constant current output port OUT2 of the light-changing control chip 6, respectively. The L/N input end of the patch rectifier bridge 5 is respectively connected with an L/N power supply lead, and a power switch 8 is arranged on the L/N power supply lead. In order to eliminate the stroboscopic effect of the light-emitting diode, the output end of the patch rectifier bridge 5 is further connected with a filter circuit 7, and the filter circuit 7 comprises an electrolytic capacitor C3 and a resistor R4 which are connected in parallel, and a diode D1 which is connected with the electrolytic capacitor C3 and the resistor R4 in series.

The utility model discloses a control principle is: when the power switch 8 is turned on, the color-changing control chip 6 supplies power, the analog power port VDD controls the white light series unit 410 to be turned on after detecting that the capacitor C1 is fully charged, the LED lamp tube has the effect of white light, and the delay time for turning on the white light series unit 410 is controlled by the capacity of the capacitor C1. When the power switch 8 is turned on and off for the first time, whether the on-off operation interval time belongs to the time set by the program is detected through the charging and discharging time of the capacitor C2, if the on-off operation interval time belongs to the time set by the program, the lamp tube is switched to the warm white light series unit 420 to be lightened, and the lamp tube has the warm white light effect; if the time is longer than or shorter than the programmed time, the switching is not performed, and the white-light tandem unit 410 is still controlled to be turned on. When the power switch 8 is turned off and on again for the second time, the charging and discharging time of the capacitor C2 is used to detect whether the interval time of the on-off operation belongs to the time set by the program, if the interval time belongs to the time set by the program, the switch is switched to the white light series unit 410 and the warm white light series unit 420 to be simultaneously lighted, the lamp tube has the effect of superposition of the white light and the warm white light, if the interval time is more than or less than the time set by the program, the switch is not switched, and the white light series unit 410 is still controlled to. The charging and discharging time detection of the capacitor C2 can prevent light switching caused by misoperation.

The utility model discloses owing to be provided with the light-changing control chip in the circuit board, the light-changing control chip has first constant current output port OUT1 and second constant current output port OUT2, and positive white light tandem unit and warm white light tandem unit's negative pole is connected to respectively first constant current output port OUT1 and second constant current output port OUT2, and positive white light tandem unit and warm white light tandem unit's positive pole is connected to the power positive pole; therefore, the utility model discloses adjust luminance does not need the segmentation dimmer, can realize the three-colour through ordinary switch operation and change the light, has advantages such as with low costs and equipment are simple.

The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims

1. The utility model provides a switch three-colour becomes light LED ceiling lamp, includes the bottom plate, install the circuit board on the bottom plate, the welding has the LED lamp pearl of two kinds of different colours on the circuit board, still install the cage on the bottom plate the lamp shade of LED lamp pearl and circuit board, its characterized in that: the circuit board is also provided with a dimming control chip, the dimming control chip is provided with a positive electrode port, a negative electrode port, a first constant current output port and a second constant current output port, and the positive electrode port and the negative electrode port are respectively connected to a positive electrode power supply and a negative electrode power supply; the cathodes of the two LED lamp beads with different colors are respectively connected to the first constant current output port and the second constant current output port, and the anodes of the two LED lamp beads with different colors are connected to the anode power supply.

2. The switch three-color light-variable LED ceiling lamp according to claim 1, characterized in that: the LED lamp is characterized in that a patch rectifier bridge is further arranged on the circuit board, the positive and negative output ends of the patch rectifier bridge are respectively connected to the positive and negative power ports of the light-changing control chip, and the positive electrodes of the LED lamp beads with two different colors are connected to the positive output end of the patch rectifier bridge.

3. The switch three-color light-variable LED ceiling lamp according to claim 2, characterized in that: the light-changing control chip is also provided with an analog power port and a digital power port, and the analog power port and the digital power port are respectively connected to the negative electrode of the patch rectifier bridge through capacitors.

4. The switch three-color light-variable LED ceiling lamp according to claim 2, characterized in that: the variable light control chip is also provided with a first current detection port and a second current detection port, and the first current detection port and the second current detection port are respectively connected to the negative electrode of the patch rectifier bridge through resistors.

5. The switch three-color light-variable LED ceiling lamp according to claim 2, characterized in that: and the output end of the patch rectifier bridge is also connected with a filter circuit.

6. The switch three-color light-variable LED ceiling lamp according to claim 5, characterized in that: the filter circuit comprises an electrolytic capacitor and a resistor which are connected in parallel, and a diode which is connected with the electrolytic capacitor and the resistor in series.