WO2022036857A1

WO2022036857A1 - Intelligent-controlled lighting and sterilization dual-purpose lamp

Info

Publication number: WO2022036857A1
Application number: PCT/CN2020/124186
Authority: WO
Inventors: 许剑钢; 马位赣
Original assignee: 浙江宇光照明科技有限公司
Priority date: 2020-08-18
Filing date: 2020-10-28
Publication date: 2022-02-24
Also published as: DE212020000699U1; CN111905122A

Abstract

An intelligent-controlled lighting and sterilization dual-purpose lamp, relating to the technical field of lighting equipment. The intelligent-controlled lighting and sterilization dual-purpose lamp comprises a lighting lamp bead, a UV lamp bead, and a drive circuit; the drive circuit comprises a flyback power circuit, a DC-to-DC power conversion circuit (9), a switching circuit (4) implementing on and off of the lighting lamp bead, and a single-chip microcomputer (8) connected to the switching circuit (4) and the DC-to-DC power conversion circuit (9); the flyback power circuit comprises an EMC module (1), a power conversion circuit (2), and a rectification and filter circuit (3); the EMC module (1) is connected to mains supply; the power conversion circuit (2) is connected to the EMC module (1) and located on the primary coil side of the flyback power circuit; the rectification and filter circuit (3) is located on the secondary coil side and connected to the lighting lamp bead; the positive output end of the rectification and filter circuit (3) is connected to the DC-to-DC power conversion circuit (9); and the DC-to-DC power conversion circuit (9) converts the voltage of a lighting circuit into a voltage which is adaptive to the UV lamp bead. The intelligent-controlled lighting and sterilization dual-purpose lamp combines two functions of lighting and ultraviolet sterilization into one, and the lighting and sterilization functions cannot be turned on at the same time, thereby saving resources, and achieving high security.

Description

A kind of intelligent control lighting sterilization dual-purpose lamp

technical field

The invention relates to an intelligent control lighting and germicidal dual-purpose lamp, which belongs to the technical field of lighting equipment.

Background technique

The existing indoor lamps on the market are basically pure lighting functions. If you need to disinfect and sterilize the room, you need to buy an additional ultraviolet germicidal lamp. The separate purchase of two lamps increases the user's cost of use, wastes resources and indoor space. If the lighting function and the ultraviolet sterilization function can be combined into one and integrated into the same lamp, it can save resources, save budget and capital, and optimize the layout of indoor space.

Based on this, the present application is made.

SUMMARY OF THE INVENTION

In order to solve the above-mentioned defects in the prior art, the present invention provides an intelligently controlled lighting sterilization dual-purpose lamp, which combines the two functions of lighting and ultraviolet sterilization into one, and the lighting and sterilization functions cannot be turned on at the same time, saving resources, High security.

In order to achieve the above object, the technical scheme adopted by the present invention is as follows:

An intelligently controlled lighting and sterilization dual-purpose lamp, comprising a lighting lamp bead, a UV lamp bead, and a drive circuit for driving the lighting lamp bead and the UV lamp bead to work; the drive circuit includes a flyback power supply circuit and a DC-to-DC power conversion circuit; The flyback power supply circuit includes an EMC module, a power conversion circuit and a rectification filter circuit;

The EMC module is connected to the mains, the power conversion circuit is connected to the EMC module, and the power conversion circuit is located on the primary coil side of the flyback power circuit, and the rectifier filter circuit is located on the secondary coil side of the flyback power circuit; The positive and negative output terminals are respectively connected to the positive and negative input terminals of the lighting lamp beads; the positive output terminal of the rectifier filter circuit is also connected to the DC to DC power conversion circuit, and the two positive and negative output terminals of the DC to DC power conversion circuit are connected to UV The positive and negative input terminals of the lamp beads; the voltage of the lighting circuit is converted into a voltage that can be adapted to the UV lamp beads through the DC to DC power conversion circuit.

Further, the drive circuit further includes a switch circuit for turning on and off the lighting lamp beads; the switch circuit is arranged at the negative output end of the rectification filter circuit.

Further, the drive circuit also includes a single chip microcomputer connected to the switch circuit and the DC to DC power conversion circuit, the single chip microcomputer controls the closing and opening of the switch circuit, and further controls the lighting lamp beads to be turned on and off; at the same time, the single chip microcomputer controls the DC The DC power conversion circuit further controls the opening and closing of the UV lamp beads; the flyback power supply circuit also includes a control circuit connected to the power conversion circuit, a VCC1 power supply circuit connected to the control circuit and located on the primary coil side, and a power supply circuit located on the primary coil side. The VCC2 power supply circuit on the secondary coil side; the single-chip microcomputer is connected to the VCC2 power supply circuit, and the VCC1 power supply circuit and the VCC2 power supply circuit respectively supply power to the control circuit and the single-chip microcomputer.

Further, the driving circuit further includes a radio frequency receiving module, the radio frequency receiving module is connected with the VCC2 power supply circuit and the single chip microcomputer, and the radio frequency receiving module is powered by the VCC2 power supply circuit and controlled by the single chip microcomputer.

Further, the switch circuit adopts a MOS tube, the MOS tube is arranged at the negative input end of the lighting lamp bead, the G pin of the MOS tube is connected to the control pin of the single-chip microcomputer, and the single-chip microcomputer realizes the lighting lamp bead through the switch control of the MOS tube. on and off.

Further, the DC-to-DC power conversion circuit adopts the BUCK solution chip with its own shutdown function, the pin 3 of the chip is the shutdown pin, and the pin 3 is connected to the control pin of the single-chip microcomputer, so as to control the opening of the UV lamp beads through the single-chip microcomputer. and off.

Further, the radio frequency receiving module adopts a single-chip radio frequency receiver in the frequency range of 300MHz-450MHz.

Further, the single-chip microcomputer has a built-in timing module.

The present invention can realize the following technical effects:

(1) The present invention combines the two functions of lighting and ultraviolet sterilization into one, and is installed in the same lamp, which can effectively save resources, save expenses, and optimize the layout of indoor space.

(2) In the present invention, a switch circuit is added to the drive circuit, which can realize the function of switching the lighting or ultraviolet sterilization independently, that is, the lighting and the sterilization function cannot be turned on at the same time.

(3) The present invention adds a radio frequency receiving device, and the two functions can be switched at will through the remote controller.

(4) The invention has a built-in single-chip microcomputer, which can perform timing control of the sterilization time according to the needs of the use environment. When the time is up, it will automatically turn off. Meet more practical needs.

Description of drawings

Fig. 1 is the circuit module diagram of the intelligent control lighting and germicidal dual-purpose lamp of the present invention;

FIG. 2 is a circuit schematic diagram of the intelligent control lighting and germicidal dual-purpose lamp of the present invention.

Note: EMC module 1, power conversion circuit 2, rectifier filter circuit 3, switch circuit 4, control circuit 5, VCC1 power supply circuit 6, VCC2 power supply circuit 7, single chip microcomputer 8, DC to DC power conversion circuit 9, RF receiving module 10 .

detailed description

In order to make the technical means of the present invention and the technical effects that can be achieved, more clearly and more fully disclosed, the following embodiments are provided herewith, and the following detailed descriptions are made in conjunction with the accompanying drawings:

As shown in FIG. 1 and FIG. 2 , an intelligently controlled lighting and germicidal dual-purpose lamp in this embodiment includes a lighting lamp bead, a UV lamp bead, and a driver for driving the lighting lamp bead and the UV lamp bead (ultraviolet germicidal lamp bead) to work. circuit; the drive circuit includes a flyback power supply circuit and a DC to DC power conversion circuit 9; the flyback power supply circuit includes an EMC module 1, a power conversion circuit 2 and a rectification filter circuit 3;

The EMC module 1 is connected to the mains, the power conversion circuit 2 is connected to the EMC module 1, and the power conversion circuit 2 is located on the primary coil side of the flyback power supply circuit, and the rectifier filter circuit 3 is located on the secondary coil side of the flyback power supply circuit; The two positive and negative output ends of the circuit 3 are respectively connected to the positive and negative input ends of the lighting lamp bead; The positive and negative output ends are connected to the positive and negative input ends of the UV lamp beads; the mains is rectified and filtered, and the lamps are controlled to light after AC and DC conversion. The driving circuit of the present invention converts the voltage of the lighting circuit into a voltage suitable for the UV lamp beads through the DC to DC power conversion circuit 9, and combines the UV lamp beads and the lighting lamp beads into one, saving resources and saving budget.

Preferably, in this embodiment, the driving circuit further includes a switch circuit 4 for turning on and off the lighting lamp beads; Through the switch circuit 4, the lighting or ultraviolet sterilization function can be independently switched on and off.

Preferably in this embodiment, the drive circuit further includes a single chip 8 (MCU can be used) connected to the switch circuit 4 and the DC-to-DC power conversion circuit 9. The single chip 8 controls the closing and opening of the switch circuit 4, and further controls the lighting lamp beads to be turned on. At the same time, the single-chip microcomputer 8 further controls the opening and closing of the UV lamp beads by controlling the DC to DC power conversion circuit 9; the flyback power supply circuit also includes a control circuit 5 connected with the power conversion circuit 2, connected with the control circuit 5 and located in the primary The VCC1 power supply circuit 6 on the coil side and the VCC2 power supply circuit 7 on the secondary coil side; the microcontroller 8 is connected to the VCC2 power supply circuit 7, and the VCC1 power supply circuit 6 and the VCC2 power supply circuit 7 supply power to the control circuit 5 and the microcontroller 8 respectively.

Preferably, in this embodiment, the driving circuit further includes a radio frequency receiving module 10 . The radio frequency receiving module 10 is connected to the VCC2 power supply circuit 7 and the microcontroller 8 . The radio frequency receiving module 10 is powered by the VCC2 power supply circuit 7 and controlled by the microcontroller 8 . In the present invention, a radio frequency receiving device is added, and the two functions can be switched at will through a remote controller, thereby realizing the remote control of the lighting and sterilization functions.

In this embodiment, preferably, the switch circuit 4 adopts a MOS tube, the MOS tube is arranged at the negative input end of the lighting lamp bead, and the G pin of the MOS tube is connected to the control pin of the single-chip microcomputer 8, and the single-chip microcomputer 8 realizes lighting by controlling the switch of the MOS tube. Turning on and off the lamp beads.

In this embodiment, preferably, the DC-to-DC power conversion circuit 9 adopts a BUCK solution chip with its own shutdown function. The pin 3 of the chip is the shutdown pin, and the pin 3 is connected to the control pin of the single-chip microcomputer 8, so as to realize the UV control through the single-chip microcomputer 8 Turning on and off the lamp beads.

Preferably, in this embodiment, the radio frequency receiving module 10 adopts a single-chip radio frequency receiver with a frequency range of 300MHz-450MHz, which has high performance, low power consumption, and a wide range of market applications.

Preferably, in this embodiment, the single chip 8 has a built-in timing module.

2, the overall working principle of the driving circuit of the present invention: after the radio frequency receiving module 10 receives the remote control command, it is input into the single-chip microcomputer 8 (MCU), and the single-chip microcomputer 8 makes corresponding function realizations according to different commands, such as when the remote control sends out a shutdown When the lighting function is commanded, the single-chip microcomputer 8 receives the command and changes the level of pin 5 to low level, the level of pin G of the MOS tube is pulled low, the MOS tube is turned off, the lighting circuit loop is open, and the lamp bead is extinguished. The same is true for the ultraviolet sterilization function. After the single-chip microcomputer 8 receives the light-off instruction, the output of pin 86 of the single-chip microcomputer pulls down the level of pin 3 of the U2 chip, and the DC to DC module is turned off to turn off the ultraviolet sterilization function. The timing shutdown function is that after the single-chip microcomputer 8 receives the timing shutdown command, the internal timer of the single-chip microcomputer 8 starts timing, and when the timing time is reached, the level of pin 6 is pulled down to realize the timing shutdown function. Since ultraviolet rays are harmful to the human body, a protection setting can be added inside the single-chip microcomputer 8, that is, the lighting of the ultraviolet lamp and the lighting lamp can be set to a single lighting through the software programming of the single-chip microcomputer 8, that is, the ultraviolet lamp and the lighting lamp cannot be turned on at the same time, Avoid turning on the two lamps at the same time in actual use, avoid ultraviolet light hazards caused by personnel misoperation, and ensure the personal safety of indoor personnel.

The above content is a further detailed description of the provided technical solutions in combination with the preferred embodiments of the present invention. It cannot be considered that the specific implementation of the present invention is limited to the above descriptions. For those of ordinary skill in the technical field of the present invention, without departing from the Under the premise of the concept of the present invention, some simple deductions or substitutions can also be made, which should be regarded as belonging to the protection scope of the present invention.

Claims

An intelligent control lighting and sterilization dual-purpose lamp is characterized in that: it includes a lighting lamp bead, a UV lamp bead, and a driving circuit for driving the lighting lamp bead and the UV lamp bead to work; the driving circuit includes a flyback power supply circuit, a DC to DC conversion A power conversion circuit, a switch circuit for turning on and off lighting lamp beads, and a single-chip microcomputer connected to the switch circuit and the DC-to-DC power conversion circuit; the flyback power circuit includes an EMC module, a power conversion circuit, and a rectification filter circuit ;

The EMC module is connected to the mains, the power conversion circuit is connected to the EMC module, and the power conversion circuit is located on the primary coil side of the flyback power circuit, and the rectifier filter circuit is located on the secondary coil side of the flyback power circuit; The positive and negative output terminals are respectively connected to the positive and negative input terminals of the lighting lamp beads; the positive output terminal of the rectifier filter circuit is also connected to the DC to DC power conversion circuit, and the two positive and negative output terminals of the DC to DC power conversion circuit are connected to UV The positive and negative input ends of the lamp beads; the voltage of the lighting circuit is converted into a voltage suitable for the UV lamp beads through the DC to DC power conversion circuit; the switch circuit is set at the negative output end of the rectifier filter circuit; the single chip controls the switch circuit At the same time, the single-chip microcomputer further controls the opening and closing of the UV lamp beads by controlling the DC to DC power conversion circuit; the flyback power supply circuit also includes a connection with the power conversion circuit. A control circuit, a VCC1 power supply circuit connected to the control circuit and located on the primary coil side, and a VCC2 power supply circuit located on the secondary coil side; the single-chip microcomputer is connected to the VCC2 power supply circuit, and the VCC1 power supply circuit and the VCC2 power supply circuit are respectively the control circuit Circuit and microcontroller power supply.
The intelligent control lighting and germicidal dual-purpose lamp of claim 1, wherein the driving circuit further comprises a radio frequency receiving module, the radio frequency receiving module is connected to the VCC2 power supply circuit and the single chip, and the radio frequency receiving module is powered by the VCC2 power supply circuit and controlled by the single-chip microcomputer.
The intelligent control lighting and germicidal dual-purpose lamp of claim 1, wherein the switch circuit adopts a MOS tube, the MOS tube is arranged at the negative input end of the lighting lamp bead, and the G pin of the MOS tube is connected to the single-chip microcomputer. The control pin, the single-chip microcomputer realizes the opening and closing of the lighting bead through the switch control of the MOS tube.
The intelligent control lighting and germicidal dual-purpose lamp as claimed in claim 1, characterized in that: the DC-to-DC power conversion circuit adopts a BUCK solution chip with its own shutdown function, and the pin 3 of the chip is a shutdown pin, and the pin 3 is a shutdown pin. 3. Connect to the control pin of the single-chip microcomputer to control the opening and closing of the UV lamp beads through the single-chip microcomputer.
The intelligent control lighting and germicidal dual-purpose lamp of claim 1, wherein the radio frequency receiving module adopts a single-chip radio frequency receiver in the frequency range of 300MHz-450MHz.
The intelligent-controlled lighting and germicidal dual-purpose lamp according to claim 1, wherein the single-chip microcomputer has a built-in timing module.