CN201081098Y - AC and/or DC lighting device using AC power supply - Google Patents

Abstract

The utility model provides an adopt AC power supply's interchange and/or DC lighting device, include: a lamp in which an AC power supply lamp and a DC power supply lamp are arranged; and an AC and DC power supply selective control device electrically connected with the lamp, the control device comprises a processor which provides AC and/or DC power supply for the AC power supply lamp and/or the DC power supply lamp according to a predetermined mode; one end of the converter is connected with an alternating current power line through a switch, and the other end of the converter outputs stable direct current voltage to the processor; an AC signal detector for providing a detection signal to the processor; a DC output driver for applying a DC voltage to the DC power supply lamp according to an instruction of the processor to emit light; and an AC output driver for applying an AC voltage to the AC power supply lamp to emit light in accordance with an instruction of the processor. The utility model discloses a lighting device can produce good decoration and visual effect.

Description

AC and/or DC lighting fixtures powered by AC

technical field

The invention relates to an illuminating device suitable for municipal AC power supply, in particular to an AC and/or DC illuminating device controlled by a switch using AC power supply.

Background of the invention

As we all know, the current common lamps are divided into AC lamps and DC lamps. AC lamps can be directly connected to the AC power supply to emit light; while DC lamps need to work under DC power to emit light stably and normally. If they are directly powered by AC, they must be rectified and stepped down. Yet there is not yet a kind of lighting device with alternating current and direct current powered by alternating current that can be used separately or together on the market.

Common AC lamps mainly include incandescent lamps based on the principle of tungsten light emission and energy-saving lamps based on the principle of three-color powder light emission. Common lamps for direct current use include light-emitting diodes (LEDs), which are semiconductor devices that can convert electrical energy into light energy, and have the advantages of high luminous efficiency and low power consumption. In addition, LED lights can emit light of different colors, and any combination of them can increase the variation of lights and produce good decorative effects, so they have been widely used in various lighting and advertising lighting. However, since LEDs can only work under low-voltage DC power supply, they are limited in municipal AC power and other lighting applications.

In the prior art, there have been DC lamps such as LEDs that can directly use AC power with corresponding drive circuits or structural designs, but so far, there has not been a lamp that can integrate AC lamps and DC lamps. .

Considering the aforementioned situation, it is hoped to provide a novel lamp which integrates the AC lamp and the DC lamp and uses only one switch to control the on and off of the AC lamp and the DC lamp in the lamp. In this way, the cost is saved, the operation is convenient, and the use is convenient. At the same time, various combinations of AC lamps and DC lamps can be used to provide lighting and decoration functions.

Contents of the invention

The technical problem to be solved by the present invention is to provide a completely new AC and/or DC lighting device powered by AC in terms of design and function, and one switch controls the AC lamps and DC lamps in the lighting device.

According to the present invention, the AC and/or DC lighting device powered by AC includes:

a luminaire, wherein an AC-powered lamp and a DC-powered lamp are provided; and

An AC and DC power supply selective control device, the control device is electrically connected to the lamp and includes: a processor, which provides AC and/or Or a DC power supply; a converter, one end of which is connected to the AC power line through a switch, and the other end outputs a stable DC voltage to the processor; an AC signal detector, which provides detection signals for the processor ; a DC output driver, which applies a DC voltage to the DC-powered lamp to emit light according to the instruction of the processor; and an AC output driver, which applies an AC voltage to the lamp according to the instruction of the processor. Lights up in said AC powered lamp.

Preferably, the AC-powered lamps include incandescent lamps, spotlights or energy-saving lamps, and the DC-powered lamps include one or more groups of LED lamps. In a specific embodiment, the DC powered lamp includes three groups of LED lamps, and each group of LED lamps respectively emits orange light, green light, blue light or any combination thereof.

Preferably, the processor is a microprocessor, which provides AC and/or DC power for the AC-powered lamp and/or DC-powered lamp according to predetermined programming. Alternatively, the processor may also be an integrated chip.

Preferably, the converter includes a step-down transformer, a bridge rectifier and a DC voltage regulator.

In a specific embodiment of the present invention, the AC signal detector is an optical coupler. The optocoupler receives an AC signal at an input end, and provides an electric pulse signal for the processor at an output end. The optocoupler provides a voltage interruption signal when the switch is opened and then closed again.

In a specific embodiment, the DC output driver includes at least one triode, preferably two triodes. The AC output driver includes a triode and a power relay. Alternatively, a thyristor can be used instead of the triode and power relay.

Since the lighting device of the present invention is provided with a selective control device for AC and DC power sources, one switch can be used to control the AC-powered lamp and the DC-powered lamp without increasing the line connection. In addition, if the DC lamp adopts multi-color LEDs, the lighting device of the present invention can not only have the original lighting function, but also bring aesthetic enjoyment to people due to the changing visual effects produced by the LEDs. If the LED is arranged on the outside of the lighting device of the present invention, the lighting device of the present invention can also meet the safety requirements of countries such as Europe for touch-type lamps because the lamps that can be touched are low-voltage DC lamps.

The idea, specific structure and technical effects of the present invention will be further described below in conjunction with the accompanying drawings, so as to fully understand the purpose, features and effects of the present invention. However, these drawings are only for illustration and should not be construed as limiting the present invention.

Description of drawings

Fig. 1 shows the block diagram of basic unit of the present invention;

Figure 2 shows a circuit diagram of an embodiment of the present invention; and

Fig. 3 shows the circuit diagram of the present invention for three groups of LED lamps.

Among them, reference signs:

101: Switch 102: AC powered lamp

103: DC power supply lamp 10: Processor

20; Converter 21: Step-down transformer

22: Bridge rectifier 23: DC voltage regulator

30: AC signal detector 40: DC output drive

41, 42: Transistor 50: AC output drive

51: Transistor 52: Power relay

Detailed ways

Referring to Fig. 1 to Fig. 2, an AC and/or DC lighting device using AC power supply of the present invention includes a lamp, wherein an AC power supply lamp 102 and a DC power supply lamp 103 are configured, and an AC, DC power supply selective control device . The AC-powered lamps and DC-powered lamps configured in the lamps should be set according to different requirements and standards of different countries, and there should be a certain distance between them. A common configuration is that the center of the lamp is equipped with an AC-powered lamp, such as an incandescent lamp, a spotlight, an energy-saving lamp, and the like. The DC-powered LED lights can be spaced apart from the AC-powered lights and surround the AC-powered lights. The said DC powered lamp includes one or more groups of LED lamps. Each group of LED lamps respectively emits orange light, green light and blue light or a combination thereof, which can increase the variation of light and produce a good decorative effect. According to the requirement, the AC-powered lamp and the DC-powered lamp configured in the lamp can be powered on at the same time or one of them can be powered on through the selective control device of the AC and DC power supply.

The AC, DC and DC power selective control device is electrically connected to the lamp and includes:

A processor 10, which provides AC and/or DC power for the AC-powered lamp and/or DC-powered lamp according to a predetermined method. In Fig. 2, the processor 10 is a microprocessor, which provides AC and/or DC power for the AC-powered lamp and/or DC-powered lamp according to predetermined programming, or, the processor 10 It can also be an integrated chip or an integrated circuit board composed of discrete components such as transistors, resistors and capacitors that provide similar processing functions;

One end of a converter 20 is connected to the AC power line through a switch 101 , and the other end outputs a stable DC voltage to the processor 10 . AC power is mains electricity, ie 220 volts or 110 volts, 50 or 60 Hz. The converter 20 includes a step-down transformer 21 , a bridge rectifier 22 and a DC voltage regulator 23 . The step-down transformer 21 turns the commercial power into a 6-volt alternating current, then rectifies it into a 6-volt ripple voltage through a bridge rectifier 22, and then provides a very stable 6-volt DC voltage for the processor through a DC voltage stabilizer 23;

The AC signal detector 30 provides a detection signal for the processor 10 . More specifically, it accepts an AC voltage at the input and provides a DC signal at the output to the processor. Therefore, the AC signal detector shown in Figure 2 is an optocoupler. The optocoupler receives the AC signal at the input end, and provides the pulse signal for the processor at the output end;

A DC output driver 40, which applies DC voltage to the DC powered lamp to emit light according to the instructions of the processor 10. The DC output drive 40 includes at least one triode 42, preferably two triodes 41, 42; and

An AC output driver 50, which applies AC voltage to the AC-powered lamp to emit light according to the instruction of the processor 10. The AC output driver 50 includes at least one triode 51 and a power relay 52 . In addition, the AC output driver 50 may also include a thyristor (not shown in the figure).

The AC powered AC and/or DC lighting device of the present invention works like this:

Referring to Fig. 2, when the switch 101 is closed, the mains power is applied to one side of the step-down transformer 21, and the other side outputs a 6-volt AC voltage which is rectified by the bridge rectifier 22 into a 6-volt ripple voltage, and then passed through a DC voltage. The voltage regulator provides a very stable 6V DC voltage for the processor 10 . On the other hand, the optocoupler 31 receives an AC signal at its input end to excite the light-emitting diode to be optically coupled to the photosensitive diode and provides a DC signal at its output end to the processor 10 .

The processor sets the predetermined programming, and its control sequence is as shown in Table 1:

Table 1

control sequence AC lamp LED group 1 connected Disconnect

2 connected connected 3 Disconnect connected

In the first control sequence, the processor 10 outputs a DC signal to the switch transistor 51 to turn it on, and the 6V ripple voltage is applied to the power relay 52 through the contact VDD, thereby generating a magnetic force to close the switch 53 . In this way, the AC powered lamp 102 is turned on and emits light, while the LED lamp group 103 is in an off state and does not emit light. Here, if a silicon controlled rectifier is used instead of the power relay 52, the same function can also be achieved.

In the second control sequence, that is, even if the switch 101 is opened and then closed again, the optocoupler 31 provides the processor 10 with an AC voltage interruption signal at its output. At this time, the processor 10 outputs DC signals to the switching transistors 51 and 42 respectively according to the setting and makes them conduct, and the 6-volt ripple voltage is respectively applied to the power relay 52 through VDD to turn on the lamp 102 to emit light and applied to the power relay 52 respectively. The LED group emits light.

In the third control sequence, that is, even if the switch 101 is turned off again and then turned on again, the optocoupler 31 provides the processor 10 with a signal of interruption of the AC voltage at its output terminal. At this time, the processor 10 only outputs the DC signal to the switching transistor 42 according to the setting. Therefore, the LED lamp group still energizes and emits light. But the switch triode 51 resets the power relay 52 because it does not receive the DC signal, and the switch 53 is turned off, so the lamp 102 is turned off and does not emit light.

If the switch 101 is turned off again and then turned on again, the above-mentioned actions will be repeated according to the preset setting.

Referring to Fig. 3, the processor 10 can pre-set the sequence in Table 2 as follows:

Table 2

control sequence AC lamp LED group 1 LED group 2 LED group 3 1 connected Disconnect Disconnect Disconnect 2 Disconnect connected Disconnect Disconnect 3 Disconnect Disconnect connected Disconnect 4 Disconnect Disconnect Disconnect connected

Except that the processor 10 adds two output terminals for providing DC signals to the LED group 2 and the LED group 3 and corresponding switching transistors, other actions are basically the same as above.

The lighting device of the present invention is usually used indoors, with commonly used commercial power as the power supply, and with the most common and simple switch, it can control AC power supply and DC power supply or realize AC and DC power supply at the same time according to different needs, so as to achieve lighting or decoration as well as lighting and decoration.

Although the preferred embodiments of the present invention have been described in detail above, those skilled in the art can make various modifications or modifications as long as they do not deviate from the design idea and idea of the present invention. It should be said that such variations or modifications all belong to the protection scope of the present invention.

Claims (14)

1. an interchange and/or dc lighting device that adopts Alternating Current Power Supply is characterized in that described device comprises:

One light fixture wherein disposes a.c. powered lamp and direct current supply lamp; And

One AC and DC power supply Selective Control device, described control device and described light fixture are electrically connected and comprise:

One processor, it exchanges and/or dc source for described a.c. powered lamp and/or direct current supply lamp provide according to predetermined mode;

One converter, the one end is connected with AC power cord through a switch, and other end output galvanic current is pressed to described processor;

One AC signal detector is for described processor provides detection signal;

One direct current output driver according to the instruction of described processor, puts on described direct current supply lamp with DC voltage and luminous; And

One exchanges output driver, according to the instruction of described processor, alternating voltage is put on described a.c. powered lamp and luminous.

2. the interchange of Alternating Current Power Supply as claimed in claim 1 and/or dc lighting device is characterized in that, described a.c. powered lamp comprises incandescent lamp, shot-light or electricity-saving lamp.

3. the interchange of Alternating Current Power Supply as claimed in claim 1 and/or dc lighting device is characterized in that, described direct current supply lamp comprises one or more groups LED lamp.

4. the interchange of Alternating Current Power Supply as claimed in claim 3 and/or dc lighting device is characterized in that, described direct current supply lamp comprises three groups of LED lamps, every group of LED lamp orange light LED lamp, green light LED lamp, blue LED lamp or its any combination respectively.

5. the interchange of Alternating Current Power Supply as claimed in claim 1 and/or dc lighting device is characterized in that, described processor is a microprocessor, and it provides and exchange and/or dc source according to predetermined described a.c. powered lamp and/or the direct current supply lamp of being programmed for.

6. the interchange of Alternating Current Power Supply as claimed in claim 1 and/or dc lighting device is characterized in that, described processor is an integrated chip.

7. the interchange of Alternating Current Power Supply as claimed in claim 1 and/or dc lighting device is characterized in that, described converter comprises step-down transformer, bridge rectifier and dc voltage stabilizer.

8. the interchange of Alternating Current Power Supply as claimed in claim 1 and/or dc lighting device is characterized in that, described AC signal detector is a photo-coupler.

9. the interchange of Alternating Current Power Supply as claimed in claim 8 and/or dc lighting device is characterized in that, described photo-coupler receives AC signal at input, provide electric impulse signal at output for described processor.

10. the interchange of Alternating Current Power Supply as claimed in claim 8 and/or dc lighting device is characterized in that, described photo-coupler provides voltage interrupt signal when described switch disconnects and then be closed.

11. the interchange of Alternating Current Power Supply as claimed in claim 1 and/or dc lighting device is characterized in that, described direct current output driver comprises at least one triode.

12. the interchange of Alternating Current Power Supply as claimed in claim 11 and/or dc lighting device is characterized in that, described direct current output driver comprises two triodes.

13. the interchange of Alternating Current Power Supply as claimed in claim 1 and/or dc lighting device is characterized in that, described interchange output driver comprises a triode and power relay.

14. the interchange of Alternating Current Power Supply as claimed in claim 1 and/or dc lighting device is characterized in that, described interchange output driver comprises a controllable silicon.

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