CN213586372U

CN213586372U - Dimming and color mixing LED illuminating device and dimming and color mixing driving circuit

Info

Publication number: CN213586372U
Application number: CN202022734075.6U
Authority: CN
Inventors: 李阳; 王继博; 王焕良; 钱建平; 余彬; 钱栋力
Original assignee: Zhejiang Yankon Group Co Ltd; Zhejiang Yankon Mega Lighting Co Ltd
Current assignee: Zhejiang Yankon Group Co Ltd; Zhejiang Yankon Mega Lighting Co Ltd; Zhejiang Yangguang Meijia Lighting Co Ltd
Priority date: 2020-11-24
Filing date: 2020-11-24
Publication date: 2021-06-29
Anticipated expiration: 2030-11-24

Abstract

The utility model relates to a light and color adjusting LED lighting device, wherein a lamp holder is arranged on a lamp holder provided with a three-section type selection switch, the input end of a driving power supply is provided with two live wires and a zero wire, and three groups of LED lamp beads with different color temperatures are arranged on an LED light source plate; the driving power supply comprises a rectifying and filtering circuit, a constant current driving circuit, a power supply circuit and a detection control circuit, two live wires and a zero wire are connected with the input end of the rectifying and filtering circuit and the input end of the detection control circuit, and the output end of the constant current driving circuit is connected with the three groups of LED lamp beads; the detection control circuit comprises two voltage sampling circuits, a control chip and three control switches, wherein the two voltage sampling circuits are respectively connected between two different live wires and the control chip, the output end of the control chip is connected with the three control switches, and the three control switches are respectively connected with a group of LED lamp beads. The utility model discloses compatible syllogic select switch and wall on-off control mix colours and colors with adjusting luminance, have widened the range of application.

Description

Dimming and color mixing LED illuminating device and dimming and color mixing driving circuit

Technical Field

The utility model relates to the field of lighting technology, concretely relates to mixing of colors LED lighting device and mixing of colors drive circuit adjusts luminance.

Background

Existing dimming and color-adjusting LED lamps generally include two types: one is to adopt the conventional light and color adjusting mode, namely only one live wire and one zero line are arranged in the lamp holder, and the application range of the LED lamp is very wide; the other is a three-section dimming and color-mixing mode, namely two live wires and one zero wire are arranged in the lamp holder, and the LED lamp is small in application range, but is very popular with American people due to the fact that the LED lamp can replace a traditional dimming incandescent lamp.

The LED lamp with three-section dimming and color mixing is usually arranged on a lamp holder with three-section selection switches, and the two live wires are independently connected by controlling the three-section selection switches, or the two live wires and the zero wire are simultaneously connected, and the LED load is adjusted after the connection. The current three-section dimming and color-adjusting LED lamp load consists of two lamp beads with different color temperatures, and two different live wires and zero wires can be sequentially and alternately connected into a power supply according to the existing three-section selection switch regulation mode, so that the independent lighting control of the two groups of lamp beads with different color temperatures is realized; and the two live wires and the zero wire can be simultaneously connected into the power supply by controlling the three-section selector switch, and then two groups of lamp beads with different color temperatures are simultaneously lightened for color mixing. At present, in the three-section dimming and color-mixing LED lamp in the prior art, three lamp beads with different color temperatures cannot be respectively adjusted; in addition, the wall switch cannot be used for controlling dimming and color mixing at the same time, and only a special three-section selector switch is used for controlling adjustment, so that the application range is limited to a certain extent.

Based on the reasons, the inventor improves the driving circuit for dimming and mixing colors, so that lamp beads with three different color temperatures can be independently adjusted by the three-section type selection switch, and a wall switch control mode can be compatibly adopted, so that the application range of products is widened.

SUMMERY OF THE UTILITY MODEL

In order to achieve the above object, the utility model discloses at first disclose a mixing of colors LED lighting device adjusts luminance, the technical scheme of its adoption is:

a light and color adjusting LED lighting device comprises an LED light source plate and a driving power supply which are arranged in a lamp body, wherein the bottom of the lamp body is connected with a lamp cap, and the lamp cap is arranged on a lamp holder provided with a three-section type selection switch; the input end of the driving power supply is provided with two live wires and a zero line, the two live wires and the zero line are both connected with the lamp holder, and three groups of LED lamp beads with different color temperatures are arranged on the LED light source plate; the driving power supply comprises a rectifying and filtering circuit, a constant current driving circuit, a power supply circuit and a detection control circuit, two live wires and a zero wire are connected with the input end of the rectifying and filtering circuit and the input end of the detection control circuit, and the output end of the constant current driving circuit is connected with the three groups of LED lamp beads; the detection control circuit comprises two voltage sampling circuits, a control chip and three control switches, wherein the two voltage sampling circuits are respectively connected between two different live wires and the control chip, the output end of the control chip is connected with the three control switches, and the three control switches are respectively connected with a group of LED lamp beads.

Further, the color temperatures of the three groups of LED lamp beads are 2200K, 3000K and 5000K respectively.

Further, the lamp bead with the color temperature of 2200K adopts a white light lamp bead with the power of 2W and the luminous flux of 200 lm; a lamp bead with the color temperature of 3000K adopts a white light lamp bead with the power of 8W and the luminous flux of 800 lm; the lamp bead with the color temperature of 5000K adopts a white light lamp bead with the power of 13.5W and the luminous flux of 1600 lm.

Furthermore, the control chip adopts a singlechip.

Further, the control switch adopts an MOS tube or a triode.

Further, the constitution of a set of LED lamp pearl that the colour temperature is 5000K includes: the LED fluorescent lamp comprises a first LED blue light chip with the dominant wavelength range of 438-447.5nm, a second LED blue light chip with the dominant wavelength range of 452.5-462.5nm, a third LED blue light chip with the dominant wavelength range of 472.5-482.5nm, at least one green fluorescent powder and one red fluorescent powder.

The utility model discloses still disclose simultaneously one kind and adjust luminance mixing of colors drive circuit, concrete scheme is as follows:

the utility model provides a mixing of colors drive circuit adjusts luminance, including rectification filter circuit, constant current drive circuit, supply circuit and detection control circuit, live wire L1 is connected respectively to rectification filter circuit's input, live wire L2 and zero line N, constant current drive circuit's input and supply circuit's input are connected respectively to rectification filter circuit's output, constant current drive circuit's output and the LED load of three different colour temperatures of group are connected, detection control circuit's input respectively with live wire L1, live wire L2 is connected, detection control circuit's output and the LED load of three different colour temperatures of group are connected.

Furthermore, the detection control circuit comprises a first voltage sampling circuit, a second voltage sampling circuit, a control chip, a first control switch, a second control switch and a third control switch, and the output end of the power supply circuit is connected with the control chip; the first voltage sampling circuit is connected between a live wire L1 and the control chip, the second voltage sampling circuit is connected between a live wire L2 and the control chip, the control chip is respectively connected with the first control switch, the second control switch and the third control switch, and the first control switch, the second control switch and the third control switch are respectively connected in series on three groups of LED loads with different color temperatures.

Further, the first voltage sampling circuit comprises a diode D1, a resistor R1, a resistor R2, a capacitor C1 and a zener diode ZD1, wherein the anode of the diode D1 is connected with the live line L1, the cathode of the diode D1 is connected with one end of the resistor R1, the other end of the resistor R1 is respectively connected with the control chip, the cathode of the zener diode ZD1, one end of the resistor R2 and one end of the capacitor C1, and the anode of the zener diode ZD1, the other end of the resistor R2 and the other end of the capacitor C1 are connected and then grounded; the second voltage sampling circuit comprises a diode D2, a resistor R3, a resistor R4, a capacitor C2 and a zener diode ZD2, wherein the anode of the diode D2 is connected with a live wire L2, the cathode of the diode D2 is connected with one end of the resistor R3, the other end of the resistor R3 is respectively connected with the control chip, the cathode of the zener diode ZD2, one end of the resistor R4 and one end of the capacitor C2, and the anode of the zener diode ZD2, the other end of the resistor R4 and the other end of the capacitor C2 are connected and then grounded.

Further, the control chip is a single chip microcomputer, and the first control switch, the second control switch and the third control switch are MOS tubes or triodes.

The utility model discloses a mixing of colors LED lighting device adjusts luminance, its connected mode that adopts two live wires and a zero line sets up the all different lamp pearls of three group's colour temperatures on LED light source board, both can realize adjusting the lamp pearl of three different colour temperatures of group through purpose-made syllogic selector switch control, also can adjust the lamp pearl of three different colour temperatures of group through the wall switch, has widened the range of application. And consider user's lighting needs, set up three kinds of operating condition modes, be night-light mode, reading mode and mode respectively, the lamp pearl colour temperature of three kinds of mode configurations risees in proper order. Consider that the user need be under the light source for a long time under the operational mode, in order to avoid the injury of blue light sharp peak to people's eyes to and prevent to influence normal work because of the blue light reduces to the brain produces drowsiness, the utility model discloses still use the blue light chip series connection combination of white light lamp pearl under the operational mode with three kinds of wave bands, when reducing the blue light peak, can promote work efficiency's promotion.

Drawings

Fig. 1 is a schematic view of an appearance structure of a light and color adjusting lighting device according to an embodiment of the present invention;

fig. 2 is an exploded view of the dimming and color-mixing lighting device in the embodiment of the present invention;

fig. 3 is a circuit diagram of a dimming and toning driving circuit in an embodiment of the present invention;

fig. 4 is a comparison spectrum diagram of the lighting device of the present invention in the working mode with the existing lighting device.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.

The present embodiment discloses a dimming and color-adjusting LED lighting device and a driving circuit for dimming and color-adjusting, wherein the dimming and color-adjusting LED lighting device is shown in fig. 1 and fig. 2, and the driving circuit is shown in fig. 3. The lighting device provided by the embodiment comprises a bulb shell 4, a lamp body 3, an LED light source board 5, a driving power supply 6 and a lamp cap 10, wherein the bulb shell 4 and the lamp cap 10 are respectively installed at two ends of the lamp body 3, the lamp cap 10 is installed on a lamp holder 1 with a three-section selection switch 2, the driving power supply 6 and the LED light source board 5 are installed in the lamp body 3, a live wire 7(L1), a live wire 8(L2) and a zero wire 9(N) are arranged at the input end of the driving power supply 6, and the two live wires and the zero wire are respectively electrically connected with the lamp cap 10. Three groups of LED lamp beads are arranged on the LED light source plate 5, and the color temperatures of the lamp beads of each group are different. For the convenience of users, the lighting device is provided with three modes: night-light mode, reading mode and mode, every mode corresponds a set of LED lamp pearl, and every group all adopts white light LED lamp pearl. The night lamp mode adopts a white light LED lamp bead with the color temperature of 2200K, the power of 2W and the luminous flux of 200 lm; the reading mode adopts a white light LED lamp bead with the color temperature of 3000K, the power of 8W and the luminous flux of 800 lm; the working mode adopts a white light LED lamp bead with the color temperature of 5000K, the power of 13.5W and the luminous flux of 1600 lm. In order to widen the application range of the lighting device, the design of the driving power supply is compatible with the three-section type selection switch for controlling dimming and color mixing, and the wall switch for controlling adjustment, and the specific implementation mode is described as follows:

the design of whole drive circuit is as shown in fig. 3, drive circuit includes rectification filter circuit, constant current drive circuit, supply circuit and detection control circuit, live wire L1 is connected respectively to rectification filter circuit's input, live wire L2 and zero line N, constant current drive circuit's input and supply circuit's input are connected respectively to rectification filter circuit's output, constant current drive circuit's output is connected with the LED load of three groups of different colour temperatures, detection control circuit's input respectively with live wire L1, live wire L2 is connected, detection control circuit's output is connected with the LED load of three groups of different colour temperatures.

The detection control circuit comprises a first voltage sampling circuit, a second voltage sampling circuit, a control chip, a first control switch, a second control switch and a third control switch, and the output end of the power supply circuit is connected with the control chip; the first voltage sampling circuit is connected between a live wire L1 and the control chip, the second voltage sampling circuit is connected between a live wire L2 and the control chip, the control chip is respectively connected with the first control switch, the second control switch and the third control switch, and the first control switch, the second control switch and the third control switch are respectively connected in series on three groups of LED loads with different color temperatures.

The first voltage sampling circuit comprises a diode D1, a resistor R1, a resistor R2, a capacitor C1 and a zener diode ZD1, wherein the anode of the diode D1 is connected with a live wire L1, the cathode of the diode D1 is connected with one end of the resistor R1, the other end of the resistor R1 is respectively connected with the control chip, the cathode of the zener diode ZD1, one end of the resistor R2 and one end of the capacitor C1, and the anode of the zener diode ZD1, the other end of the resistor R2 and the other end of the capacitor C1 are connected and then grounded; the second voltage sampling circuit comprises a diode D2, a resistor R3, a resistor R4, a capacitor C2 and a zener diode ZD2, wherein the anode of the diode D2 is connected with a live wire L2, the cathode of the diode D2 is connected with one end of the resistor R3, the other end of the resistor R3 is respectively connected with the control chip, the cathode of the zener diode ZD2, one end of the resistor R4 and one end of the capacitor C2, and the anode of the zener diode ZD2, the other end of the resistor R4 and the other end of the capacitor C2 are connected and then grounded. The control chip in this embodiment may be a single chip microcomputer, and if a wall switch control mode is adopted, the control program may be written into the single chip microcomputer. The first control switch, the second control switch and the third control switch can adopt MOS tubes or triodes.

When the LED lighting device with the given structure is used for controlling adjustment by using the three-section type selection switch, the control process is as follows: adjusting three sections of selection switches to enable a live line L1 and a zero line N to be connected, inputting the commercial power to a control chip after passing through a first voltage sampling circuit, enabling a first control switch Q2 to be conducted through the control chip, lighting a first LED load and entering a night light mode; continuously adjusting the three sections of selector switches to enable the live line L2 and the zero line N to be connected, inputting the commercial power to the control chip after passing through the second voltage sampling circuit, enabling the second control switch Q3 to be conducted through the control chip, lighting a second LED load and entering a reading mode; continuously adjusting the three sections of selector switches to enable the live line L1, the live line L2 and the zero line N to be simultaneously accessed, inputting the commercial power to the control chip after passing through the first voltage sampling circuit and the second voltage sampling circuit, enabling the third control switch Q4 to be conducted through the control chip, enabling the third LED load to be lightened, and entering a working mode; and continuously adjusting the three-section selector switch to ensure that the live wires L1 and L2 are not connected, and at the moment, the three LED loads do not work.

When the LED lighting device of the above-mentioned given structure is controlled to adjust using a wall switch, the control process is as follows: need set up the logic operation procedure in control chip in advance, switch on through the different control switch of logic operation control and make the LED load get into different state modes, still need set up the detection procedure of listening power input state among the control chip, above procedure can be set for according to actual control needs, the utility model discloses do not relate to the improvement to concrete procedure setting technique. For example: the wall switch fast switch once then switches for the first time, and the fast switch once again switches for the second time in the interval is less than 3 seconds, and the fast switch once again then switches for the third time, lights a set of load when switching at every turn, circulates in proper order. When the wall switch is quickly switched on and off once, the state mode after the adjustment of the three-section selector switch is displayed at the moment, and if the state mode is displayed when the adjustment of the three-section switch is selected at the previous time, the night light mode is also displayed after the wall switch is quickly switched on and off once at the moment; continuing to rapidly switch once to enter a reading mode; and continuing to rapidly switch once again, entering a working mode and sequentially circulating. The setting of the logical operation program can be freely set as required, and the present embodiment does not perform technical improvement on the setting of the program, but realizes compatible application of two control modes through connection of hardware structures.

In addition to the above technical improvements, it is also considered that a user may be irradiated by a light source for a long time in a working mode, and an existing white LED light source is generally formed by exciting yellow phosphor by using a single blue chip, or formed by exciting green phosphor and red phosphor by using a single blue chip, where a dominant wavelength of a blue chip is generally between 450 nm and 460 nm. Because the half width of blue light is narrow and the emission energy is high, a blue light peak is usually formed between 420 nm and 460nm, and the human eyes are easily damaged by long-term irradiation; moreover, the white light LED light source generally has little blue light between 475-485nm, so that melatonin is easily secreted by pineal bodies in brains of human bodies, and the brains are sleepy, so that the working and learning efficiency of people in the daytime can be reduced. Therefore, the third group of 5000K color temperature lamp beads in the lighting device in the working mode is further improved, and the group of lamp beads is formed by connecting blue light chips in three wavelength ranges in series, namely, a first LED blue light chip with a dominant wavelength range of 438-447.5nm, a second LED blue light chip with a dominant wavelength range of 452.5-462.5nm, and a third LED blue light chip with a dominant wavelength range of 472.5-482.5nm, and further comprises at least one green phosphor and one red phosphor. The arrangement can reduce the blue light peak formed by the blue light chip between 420 and 460nm, and simultaneously improve the relative intensity of the blue light between 475 and 485nm, thereby reducing the harm of the blue light to human eyes and improving the working efficiency.

To verify the technical effect of the present embodiment on clipping the blue spike and increasing the blue intensity,the lighting device using the technology of this embodiment was compared with the existing lighting product, and the comparison spectrum is shown in fig. 4. In a comparative test, the white light LED light source adopting the technology of this embodiment adopts a first LED blue light chip with a dominant wavelength of 442.5nm, a second LED blue light chip with a dominant wavelength of 457.5nm, and a third LED blue light chip with a dominant wavelength of 477.5nm, and half widths of the three blue light chips are 19 nm. The green fluorescent powder adopts Y with the emission wavelength of 520-535nm₃(Al,Ga)₅O₁₂:Ce³⁺The red fluorescent powder adopts CaAlSiN with emission peak wavelength of 620-640nm₃:Eu²⁺The weight ratio of the green fluorescent powder to the red fluorescent powder to the packaging adhesive is 16% and 1% respectively. As can be seen from fig. 4, in the spectrogram obtained by exciting the yellow phosphor by using a single blue light chip in the prior art, the blue light has a blue light peak with a relative intensity of 1 between the bands of 450 to 460nm, and has a peak valley at 480nm, the retina of the human eye is easily damaged by an excessively high blue light peak, and the blue light at 480nm is low, so that the pineal gland in the brain of the human body easily secretes melatonin, and the human body is fatigued; in the technology, three blue light chips with different main wavelengths are adopted, so that the relative intensity of blue light with a waveband of 420-460nm is reduced to be below 0.8, and the relative intensity of blue light with a waveband of 475-485nm is improved to be 1, so that the harm to human eyes caused by long-term irradiation is reduced, melatonin secretion of pineal bodies in brains of human bodies is inhibited, and the working and learning efficiency of people in daytime is improved.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a mixing of colors LED lighting device adjusts luminance, is connected its characterized in that with the lamp holder including setting up LED light source board and the drive power supply in the lamp body, the bottom of lamp body: the lamp holder is arranged on a lamp holder provided with a three-section type selection switch, the input end of the driving power supply is provided with two live wires and a zero wire, the two live wires and the zero wire are both connected with the lamp holder, and three groups of LED lamp beads with different color temperatures are arranged on the LED light source plate; the driving power supply comprises a rectifying and filtering circuit, a constant current driving circuit, a power supply circuit and a detection control circuit, two live wires and a zero wire are connected with the input end of the rectifying and filtering circuit and the input end of the detection control circuit, and the output end of the constant current driving circuit is connected with the three groups of LED lamp beads; the detection control circuit comprises two voltage sampling circuits, a control chip and three control switches, wherein the two voltage sampling circuits are respectively connected between two different live wires and the control chip, the output end of the control chip is connected with the three control switches, and the three control switches are respectively connected with a group of LED lamp beads.

2. A dimming and color-changing LED lighting device according to claim 1, wherein: the color temperatures of the three groups of LED lamp beads are 2200K, 3000K and 5000K respectively.

3. A dimming and color-changing LED lighting device according to claim 2, wherein: the lamp bead with the color temperature of 2200K adopts a white light lamp bead with the power of 2W and the luminous flux of 200 lm; a lamp bead with the color temperature of 3000K adopts a white light lamp bead with the power of 8W and the luminous flux of 800 lm; the lamp bead with the color temperature of 5000K adopts a white light lamp bead with the power of 13.5W and the luminous flux of 1600 lm.

4. A dimming and color-changing LED lighting device according to claim 1, wherein: the control chip adopts a singlechip.

5. A dimming and color-changing LED illumination device according to claim 1 or 4, wherein: the control switch adopts an MOS tube or a triode.

6. A dimming and color-changing LED lighting device according to claim 2 or 3, wherein: the constitution of a set of LED lamp pearl that colour temperature is 5000K includes: the LED fluorescent lamp comprises a first LED blue light chip with the dominant wavelength range of 438-447.5nm, a second LED blue light chip with the dominant wavelength range of 452.5-462.5nm, a third LED blue light chip with the dominant wavelength range of 472.5-482.5nm, at least one green fluorescent powder and one red fluorescent powder.

7. A light and color adjusting driving circuit is characterized in that: including rectification filter circuit, constant current drive circuit, power supply circuit and detection control circuit, live wire L1 is connected respectively to rectification filter circuit's input, live wire L2 and zero line N, constant current drive circuit's input and power supply circuit's input are connected respectively to rectification filter circuit's output, constant current drive circuit's output is connected with the LED load of three different colour temperatures of group, detection control circuit's input respectively with live wire L1, live wire L2 is connected, detection control circuit's output is connected with the LED load of three different colour temperatures of group.

8. A dimming and toning driving circuit according to claim 7, characterized in that: the detection control circuit comprises a first voltage sampling circuit, a second voltage sampling circuit, a control chip, a first control switch, a second control switch and a third control switch, and the output end of the power supply circuit is connected with the control chip; the first voltage sampling circuit is connected between a live wire L1 and the control chip, the second voltage sampling circuit is connected between a live wire L2 and the control chip, the control chip is respectively connected with the first control switch, the second control switch and the third control switch, and the first control switch, the second control switch and the third control switch are respectively connected in series on three groups of LED loads with different color temperatures.

9. A dimming and toning driving circuit according to claim 8, wherein: the first voltage sampling circuit comprises a diode D1, a resistor R1, a resistor R2, a capacitor C1 and a zener diode ZD1, wherein the anode of the diode D1 is connected with a live wire L1, the cathode of the diode D1 is connected with one end of the resistor R1, the other end of the resistor R1 is respectively connected with the control chip, the cathode of the zener diode ZD1, one end of the resistor R2 and one end of the capacitor C1, and the anode of the zener diode ZD1, the other end of the resistor R2 and the other end of the capacitor C1 are connected and then grounded; the second voltage sampling circuit comprises a diode D2, a resistor R3, a resistor R4, a capacitor C2 and a zener diode ZD2, wherein the anode of the diode D2 is connected with a live wire L2, the cathode of the diode D2 is connected with one end of the resistor R3, the other end of the resistor R3 is respectively connected with the control chip, the cathode of the zener diode ZD2, one end of the resistor R4 and one end of the capacitor C2, and the anode of the zener diode ZD2, the other end of the resistor R4 and the other end of the capacitor C2 are connected and then grounded.

10. A dimming and toning driving circuit according to claim 8 or 9, wherein: the control chip is a single chip microcomputer, and the first control switch, the second control switch and the third control switch are MOS tubes or triodes.