Intelligent energy-saving lighting switch control circuit

Abstract

The utility model discloses an intelligent energy-saving lighting switch control circuit comprising a live wire access port L, a zero line access port N, a live wire output port Lout, a switch control port ACN, a protection circuit, a rectification circuit and a relay circuit. The relay protection circuit comprises a double-coil magnetic latching relay K1 and an RC charging circuit. The double-coil magnetic latching relay K1 controls connection and disconnection between the live wire access port L and the live wire output port Lout, the RC charging circuit is connected with the live wire access port L and the zero wire access port N through the rectification circuit and the protection circuit, and the RC charging circuit controls the double-coil magnetic latching relay K1 to switch. According to the utility model, the energy consumption of the illumination control system can be effectively reduced, and the energy-saving effect is realized.

Description

Technical Field

[0001] This utility model relates to the field of electronic circuit technology, and in particular to an intelligent energy-saving lighting switch control circuit. Background Technology

[0002] Many existing lighting control systems use relays to control the on / off state of the lighting load. The on / off state of these relays can be controlled by microswitches. However, the relays currently used in lighting control systems are electromagnetic relays. When an electromagnetic relay is closed, its coil needs to be continuously energized. If the electromagnetic relay is closed for a long time, it will consume a lot of power, resulting in a problem of high power consumption.

[0003] In view of the above problems, it is necessary to study an intelligent energy-saving lighting switch control circuit, which can effectively reduce the energy consumption of the lighting control system. Utility Model Content

[0004] The purpose of this invention is to provide an intelligent energy-saving lighting switch control circuit that can effectively reduce the energy consumption of the lighting control system.

[0005] To achieve the above objectives, the solution of this utility model is:

[0006] An intelligent energy-saving lighting switch control circuit includes a live wire input port L, a neutral wire input port N, a live wire output port Lout, a switch control port ACN, a protection circuit, a rectifier circuit, and a relay circuit. The live wire input terminal and the neutral wire input terminal of the protection circuit are respectively connected to the live wire input port L and the neutral wire input port N. The input terminal of the rectifier circuit is connected to the live wire output terminal and the neutral wire output terminal of the protection circuit. The relay protection circuit includes a double-coil magnetic latching relay K1 and an RC charging circuit. Pin 1 of the double-coil magnetic latching relay K1 is connected to the live wire output terminal of the protection circuit, pin 4 of the double-coil magnetic latching relay K1 is connected to the live wire output port Lout, and pin 6 of the double-coil magnetic latching relay K1 is connected to the live wire input port L. The RC charging circuit includes a resistor unit, a capacitor C1, a capacitor C2, and a capacitor C3. Capacitor C3, diodes D1, D2, D4, and D5 are connected. The positive terminals of diodes D1 and D2 are connected to pins 3 and 2 of the dual-coil magnetic latching relay K1, respectively. The negative terminals of diodes D1 and D5, the positive terminal of diode D5, the first terminal of capacitor C1, and the positive terminal of capacitor C2 are connected to pin 7 of the dual-coil magnetic latching relay K1. The negative terminal of diode D2, the second terminal of capacitor C1, and the positive terminal of capacitor C3 are connected to pin 8 of the dual-coil magnetic latching relay K1. The first terminal of the resistor unit is connected to the output terminal of the rectifier circuit and pin 9 of the dual-coil magnetic latching relay K1. The second terminal of the resistor unit, the negative terminals of capacitors C2 and C3 are connected to the positive terminal of diode D4. The negative terminal of diode D4 is connected to the neutral wire input port N. The negative terminal of diode D5 is connected to the switch control port ACN.

[0007] The resistor unit consists of resistors R2 and R3 connected in series.

[0008] The resistance values ​​of resistors R2 and R3 are both 62kΩ.

[0009] The rectifier circuit includes diode D3. The positive terminal of diode D3 is the input terminal of the rectifier circuit, and the negative terminal of diode D3 is the output terminal of the rectifier circuit.

[0010] The protection circuit includes a resistor R1 and a varistor RV1. The first and second ends of the resistor R1 are connected to the live wire input and live wire output of the protection circuit, respectively. The first and second ends of the varistor RV1 are connected to the neutral wire input and neutral wire output of the protection circuit, respectively.

[0011] The capacitance of capacitor C1 is 1uF, and the capacitance of capacitors C2 and C3 is 4.7uF.

[0012] After adopting the above scheme, when the intelligent energy-saving lighting switch control circuit of this utility model is applied to the lighting control system, the live wire input port L and the neutral wire input port N are respectively connected to the live wire and neutral wire of the mains power, the live wire output port Lout and the neutral wire input port N are respectively connected to the lighting load lamp, and the switch control port ACN and the neutral wire input port N are respectively connected to the two ends of the micro switch SW.

[0013] Specifically, when the dual-coil magnetic latching relay K1 is in the first switching state, pins 1 and 2 of the dual-coil magnetic latching relay K1 are connected and pins 1 and 3 are disconnected, pins 4 and 5 of the dual-coil magnetic latching relay K1 are connected and pins 4 and 6 are disconnected; at this time, the first coil between pins 7 and 9 of the dual-coil magnetic latching relay K1 and the second coil between pins 8 and 9 of the dual-coil magnetic latching relay K1 are not energized, and the live wire output port Lout is disconnected from the live wire input terminal L, and the lighting load lamp is extinguished;

[0014] When the dual-coil magnetic latching relay K1 is in the first switching state, pressing the microswitch SW turns on the microswitch SW. At this time, the first coil between pins 7 and 9 of the dual-coil magnetic latching relay K1 is connected to the power circuit. Simultaneously, capacitor C2 charges, causing the first coil of the dual-coil magnetic latching relay K1 to control the switching of the dual-coil magnetic latching relay K1. This causes pins 1 and 2 of the dual-coil magnetic latching relay K1 to open and pins 1 and 3 to close, and pins 4 and 5 to open and pins 4 and 6 to close. This switches the dual-coil magnetic latching relay K1 to the second switching state, connecting the live wire output port Lout to the live wire input terminal L, and illuminating the lighting load lamp. Afterward, releasing the microswitch SW turns it off. At this time, the dual-coil magnetic latching relay K1 remains in the second switching state, and the first coil between pins 7 and 9 and the second coil between pins 8 and 9 of the dual-coil magnetic latching relay K1 are de-energized.

[0015] When the dual-coil magnetic latching relay K1 is in the second switch state, pressing the micro switch SW turns on the micro switch SW. At this time, the second coil between pins 8 and 9 of the dual-coil magnetic latching relay K1 is connected to the power circuit. Simultaneously, capacitor C3 is charged, causing the second coil of the dual-coil magnetic latching relay K1 to control the switching of the dual-coil magnetic latching relay K1. This causes pins 1 and 2 of the dual-coil magnetic latching relay K1 to conduct and pins 1 and 3 to disengage, and pins 4 and 5 to conduct and pins 4 and 6 to disengage. This switches the dual-coil magnetic latching relay K1 to the first switch state, disconnecting the live wire output port Lout from the live wire input terminal L, and extinguishing the lighting load lamp. Afterward, releasing the micro switch SW turns it off. At this time, the dual-coil magnetic latching relay K1 remains in the first switch state, and the first coil between pins 7 and 9 of the dual-coil magnetic latching relay K1 and the second coil between pins 8 and 9 of the dual-coil magnetic latching relay K1 are de-energized.

[0016] As described above, this utility model can control the switching state of the dual-coil magnetic latching relay K1 through the micro switch SW, thereby controlling whether the lighting load lamp is lit. The dual-coil magnetic latching relay K1 only needs to be energized when switching. When the dual-coil magnetic latching relay K1 is in the first or second switching state, it does not need to be energized. Thus, the energy consumption of the dual-coil magnetic latching relay K1 is low when it is in the first or second switching state, thereby effectively reducing the energy consumption of the entire lighting control system. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the present invention.

[0018] Figure 2 This is a schematic diagram illustrating the use of this utility model. Detailed Implementation

[0019] To further explain the technical solution of this utility model, the following detailed description is provided through specific embodiments.

[0020] like Figure 1As shown, this utility model discloses an intelligent energy-saving lighting switch control circuit, which includes a live wire input port L, a neutral wire input port N, a live wire output port Lout, a switch control port ACN, a protection circuit, a rectifier circuit, and a relay circuit. The live wire input terminal and neutral wire input terminal of the protection circuit are respectively connected to the live wire input port L and the neutral wire input port N. The input terminal of the rectifier circuit is connected to the live wire output terminal and the neutral wire output terminal of the protection circuit. The relay protection circuit includes a dual-coil magnetic latching relay K1 and an RC charging circuit. Pin 1 of the dual-coil magnetic latching relay K1 is connected to the live wire output terminal of the protection circuit, pin 4 of the dual-coil magnetic latching relay K1 is connected to the live wire output port Lout, and pin 6 of the dual-coil magnetic latching relay K1 is connected to the live wire input port L. The RC charging circuit includes a resistor unit and a capacitor C1. Capacitors C2 and C3, diodes D1, D2, D4, and D5 are connected. The positive terminals of diodes D1 and D2 are connected to pins 3 and 2 of the dual-coil magnetic latching relay K1, respectively. The negative terminals of diodes D1 and D5, the positive terminals of diodes D5, the first terminal of capacitor C1, and the positive terminal of capacitor C2 are connected to pin 7 of the dual-coil magnetic latching relay K1. The negative terminal of diode D2, the second terminal of capacitor C1, and the positive terminal of capacitor C3 are connected to pin 8 of the dual-coil magnetic latching relay K1. The first terminal of the resistor unit is connected to the output terminal of the rectifier circuit and pin 9 of the dual-coil magnetic latching relay K1. The second terminal of the resistor unit, the negative terminals of capacitors C2 and C3 are connected to the positive terminal of diode D4. The negative terminal of diode D4 is connected to the neutral wire input port N. The negative terminal of diode D5 is connected to the switch control port ACN.

[0021] Cooperate Figure 2 As shown, when the intelligent energy-saving lighting switch control circuit of this utility model is applied to a lighting control system, the live wire input port L and the neutral wire input port N are respectively connected to the live wire and neutral wire of the mains power, the live wire output port Lout and the neutral wire input port N are respectively connected to the lighting load lamp, and the switch control port ACN and the neutral wire input port N are respectively connected to the two ends of the micro switch SW.

[0022] Specifically, when the dual-coil magnetic latching relay K1 is in the first switching state, pins 1 and 2 of the dual-coil magnetic latching relay K1 are connected and pins 1 and 3 are disconnected, pins 4 and 5 of the dual-coil magnetic latching relay K1 are connected and pins 4 and 6 are disconnected; at this time, the first coil between pins 7 and 9 of the dual-coil magnetic latching relay K1 and the second coil between pins 8 and 9 of the dual-coil magnetic latching relay K1 are not energized, and the live wire output port Lout is disconnected from the live wire input terminal L, and the lighting load lamp is extinguished;

[0023] When the dual-coil magnetic latching relay K1 is in the first switching state, pressing the microswitch SW turns on the microswitch SW. At this time, the first coil between pins 7 and 9 of the dual-coil magnetic latching relay K1 is connected to the power circuit. Simultaneously, capacitor C2 charges, causing the first coil of the dual-coil magnetic latching relay K1 to control the switching of the dual-coil magnetic latching relay K1. This causes pins 1 and 2 of the dual-coil magnetic latching relay K1 to open and pins 1 and 3 to close, and pins 4 and 5 to open and pins 4 and 6 to close. This switches the dual-coil magnetic latching relay K1 to the second switching state, connecting the live wire output port Lout to the live wire input terminal L, and illuminating the lighting load lamp. Afterward, releasing the microswitch SW turns it off. At this time, the dual-coil magnetic latching relay K1 remains in the second switching state, and the first coil between pins 7 and 9 and the second coil between pins 8 and 9 of the dual-coil magnetic latching relay K1 are de-energized.

[0024] When the dual-coil magnetic latching relay K1 is in the second switch state, pressing the micro switch SW turns on the micro switch SW. At this time, the second coil between pins 8 and 9 of the dual-coil magnetic latching relay K1 is connected to the power circuit. Simultaneously, capacitor C3 is charged, causing the second coil of the dual-coil magnetic latching relay K1 to control the switching of the dual-coil magnetic latching relay K1. This causes pins 1 and 2 of the dual-coil magnetic latching relay K1 to conduct and pins 1 and 3 to disengage, and pins 4 and 5 to conduct and pins 4 and 6 to disengage. This switches the dual-coil magnetic latching relay K1 to the first switch state, disconnecting the live wire output port Lout from the live wire input terminal L, and extinguishing the lighting load lamp. Afterward, releasing the micro switch SW turns it off. At this time, the dual-coil magnetic latching relay K1 remains in the first switch state, and the first coil between pins 7 and 9 of the dual-coil magnetic latching relay K1 and the second coil between pins 8 and 9 of the dual-coil magnetic latching relay K1 are de-energized.

[0025] As described above, this utility model can control the switching state of the dual-coil magnetic latching relay K1 through the micro switch SW, thereby controlling whether the lighting load lamp is lit. The dual-coil magnetic latching relay K1 only needs to be energized when switching. When the dual-coil magnetic latching relay K1 is in the first or second switching state, it does not need to be energized. Thus, the energy consumption of the dual-coil magnetic latching relay K1 is low when it is in the first or second switching state, thereby effectively reducing the energy consumption of the entire lighting control system.

[0026] In embodiments of this invention, the resistor unit may include resistors R2 and R3 connected in series, which effectively reduces the heat generated by the resistor unit. The resistance values ​​of both resistors R2 and R3 may be 62kΩ; correspondingly, the capacitance value of capacitor C1 may be 1uf, and the capacitance values ​​of capacitors C2 and C3 may both be 4.7uf.

[0027] In an embodiment of this utility model, the rectifier circuit includes a diode D3, the positive terminal of the diode D3 is the input terminal of the rectifier circuit, and the negative terminal of the diode D3 is the output terminal of the rectifier circuit; the diode D3 can realize half-wave rectification.

[0028] In an embodiment of this utility model, the protection circuit includes a resistor R1 and a varistor RV1. The first and second ends of the resistor R1 are respectively connected to the live wire input and live wire output of the protection circuit, and the first and second ends of the varistor RV1 are respectively connected to the neutral wire input and neutral wire output of the protection circuit. The resistor R1 can achieve current limiting protection, while the varistor RV1 can achieve overvoltage protection.

[0029] The above embodiments and figures are not intended to limit the product form and style of this utility model. Any appropriate changes or modifications made by those skilled in the art should be considered as not departing from the patent scope of this utility model.

Claims

1. An intelligent energy saving lighting switch control circuit characterized by: The protection circuit, the rectifier circuit, and the relay circuit are connected to the firewire access port L, the zero line access port N, the firewire output port Lout, and the switch control port ACN. The firewire input end and the zero line input end of the protection circuit are connected to the firewire access port L and the zero line access port N respectively. The input end of the rectifier circuit is connected to the firewire output end and the zero line output end of the protection circuit. The 1st pin of the double-coil magnetic latching relay K1 is connected to the firewire output end of the protection circuit, the 4th pin of the double-coil magnetic latching relay K1 is connected to the firewire output port Lout, and the 6th pin of the double-coil magnetic latching relay K1 is connected to the firewire access port L.

2. The intelligent energy saving lighting switch control circuit as claimed in claim 1, wherein: The RC charging circuit includes a resistor unit, a capacitor C1, a capacitor C2, a capacitor C3, a diode D1, a diode D2, a diode D4, and a diode D5.

3. The intelligent energy saving lighting switch control circuit as claimed in claim 2, wherein: The first end of the resistor unit is connected to the output end of the rectifier circuit and the 9th pin of the double-coil magnetic latching relay K1.

4. The intelligent energy saving lighting switch control circuit as claimed in claim 1, wherein: The resistor unit includes the resistor R2 and the resistor R3 connected in series.

5. The intelligent energy saving lighting switch control circuit as claimed in claim 1, wherein: The resistance values of the resistor R2 and the resistor R3 are both 62kΩ.

6. The intelligent energy saving lighting switch control circuit as claimed in claim 1, wherein: The rectifier circuit includes the diode D3. The protection circuit includes the resistor R1 and the pressure-sensitive resistor RV1. The capacitor value of the capacitor C1 is 1uf, and the capacitor values of the capacitor C2 and the capacitor C3 are both 4.7uf.

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