Fan lamp circuit with three input ends

Abstract

The utility model discloses a fan lamp circuit with three input ends, which is characterized in that a first rectifier bridge and a second rectifier bridge are arranged, so that alternating current and direct current conversion can be conveniently carried out on three-input alternating current, and a first detection module and a second detection module are arranged; whether electricity exists between the first live wire input end and the null line input end or not and whether electricity exists between the second live wire input end and the null line input end or not are detected conveniently, so that the main control module controls work of the controlled fan motor driving module and the controlled light source driving module according to the detection result; the arrangement of the common-mode inductor filtering module is beneficial to suppressing high-frequency interference signals, the electrical safety is improved, and the practicability is good; the input end of the diode one-way conduction module is pulsating direct current, the output end of the diode one-way conduction module is stable direct current, two kinds of load application are met, and the pulsating direct current supplies power to a light source of the fan lamp through the controlled light source driving module. The stable direct current supplies power to the direct current motor of the fan lamp through the controlled fan motor driving module, and the stability is good.

Description

Technical Field

[0001] The utility model relates to a fan lamp circuit with three input terminals. Background Art

[0002] Fan lamp has both fan function and lighting function, and is becoming more and more popular among people.

[0003] The fan-lamp dual-control circuit disclosed in Chinese patent CN215830776U realizes the separate control functions of connecting the fan control switch 2 at the front end to control whether the fan is powered on, and connecting the lamp wall control switch 3 to control whether the lamp is powered on. However, the fan driving circuit and the lamp driving circuit in the scheme do not have AC / DC rectification functions. The output ends of the fan driving circuit and the lamp driving circuit output AC power respectively. Therefore, if the fan and the lamp are to be powered by DC power later, AC / DC conversion modules must be respectively provided, that is, the number of AC / DC conversion modules required to be provided is two, which is troublesome to implement. In addition, the use of stable DC power to power the light source is only applicable to DC light sources. It is necessary to solve this problem. Utility Model Content

[0004] The utility model overcomes the shortcomings of the above-mentioned technology and provides a fan lamp circuit with three input terminals.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A fan lamp circuit with three input ends, comprising a neutral line input end 10, a first live line input end 11, a second live line input end 12, a first rectifier bridge 21 with two input ends and two output ends, a second rectifier bridge 22 with two input ends and two output ends, a common mode inductor filter module 3, a diode unidirectional conduction module 4, a polarity capacitor module 5, a main control module 6, a controlled fan motor drive module 7 controlled by the main control module 6, and a controlled light source drive module 8 controlled by the main control module 6, wherein the neutral line input end 10 is connected to an input end of the first rectifier bridge 21 and an input end of the second rectifier bridge 22, the first live line input end 11 is connected to the other input end of the first rectifier bridge 21, the second live line input end 12 is connected to the other input end of the second rectifier bridge 22, the positive pole of the output end of the first rectifier bridge 21 is connected to the positive pole of the output end of the second rectifier bridge 22 and the first coil input end of the common mode inductor filter module 3, and the negative pole of the output end of the second rectifier bridge 22 is connected to the negative pole of the output end of the second rectifier bridge 22. The negative pole of the output end is connected to the second coil input end of the common-mode inductance filter module 3, the first coil output end of the common-mode inductance filter module 3 is connected to the positive end of the diode unidirectional conduction module 4 to supply power to the controlled light source driving module 8, the negative end of the diode unidirectional conduction module 4 is connected to the positive end of the polarity capacitor module 5 to supply power to the controlled fan motor driving module 7, the second coil output end of the common-mode inductance filter module 3 is connected to the negative end of the polarity capacitor module 5 as the grounding end of the direct current, the main control module 6 is respectively connected with a first detection module 91 for detecting whether there is electricity between the first live wire input end 11 and the neutral wire input end 10, and a second detection module 92 for detecting whether there is electricity between the second live wire input end 12 and the neutral wire input end 10, and a DC / DC module 15 for providing the required direct current to the main control module 6, the first detection module 91, and the second detection module 92 is connected in parallel between the two output ends of the polarity capacitor module 5.

[0007] Preferably, the first detection module 91 includes a diode D2, a resistor R1, an NPN transistor Q1, a voltage regulator Z1, an optical coupler VT1, a resistor R2, and a resistor R3. The positive electrode of the diode D2 is connected to the neutral line input terminal 10, the negative electrode of the diode D2 is connected to one end of the resistor R1 and the collector of the NPN transistor Q1, the other end of the resistor R1 is connected to the base of the NPN transistor Q1 and the negative electrode of the voltage regulator Z1, and the emitter of the NPN transistor Q1 is connected to the emitter of the optical coupler VT1. The positive electrode of the photodiode is connected, the negative electrode of the light-emitting diode of the optocoupler VT1 is connected to one end of the resistor R2, the other end of the resistor R2 is connected to the positive electrode of the voltage regulator Z1 and the first live wire input end 11, the transistor collector of the optocoupler VT1 is provided with current by the DC / DC module 15, the transistor emitter of the optocoupler VT1 is connected to one end of the resistor R3 and then connected to a detection signal input end of the main control module 6 as the detection signal output end of the first detection module 91, and the other end of the resistor R3 is grounded.

[0008] Preferably, the second detection module 92 includes a diode D3, a resistor R4, an NPN transistor Q2, a voltage regulator Z2, an optical coupler VT2, a resistor R5, and a resistor R6. The positive electrode of the diode D3 is connected to the zero line input terminal 10, the negative electrode of the diode D3 is connected to one end of the resistor R4 and the collector of the NPN transistor Q2, the other end of the resistor R4 is connected to the base of the NPN transistor Q2 and the negative electrode of the voltage regulator Z2, and the emitter of the NPN transistor Q2 is connected to the light emitting electrode of the optical coupler VT2. The anode of the diode is connected, the cathode of the light-emitting diode of the optocoupler VT2 is connected to one end of the resistor R5, the other end of the resistor R5 is connected to the positive electrode of the voltage-stabilizing tube Z2 and the second live wire input end 12, the transistor collector of the optocoupler VT2 is provided with a direct current by the DC / DC module 15, the transistor emitter of the optocoupler VT2 is connected to one end of the resistor R6 and then connected to a detection signal input end of the main control module 6 as the detection signal output end of the second detection module 92, and the other end of the resistor R6 is grounded.

[0009] Preferably, a fuse F1 is connected in series to the first live wire input terminal 11 , and the detection signal input terminal of the first detection module 91 is connected to the point a1 after the fuse F1 .

[0010] Preferably, the controlled fan motor driving module 7 and the controlled light source driving module 8 respectively adopt controlled MOS tube switch circuits.

[0011] Preferably, the diode unidirectional conduction module 4 adopts a diode D1, the polarity capacitor module 5 adopts a polarity capacitor C2, the first coil output end of the common-mode inductance filter module 3 is connected to the positive end of the diode D1 to supply power to the controlled light source driving module 8, the negative end of the diode D1 is connected to the positive end of the polarity capacitor C2 to supply power to the controlled fan motor driving module 7, and the second coil output end of the common-mode inductance filter module 3 is connected to the negative end of the polarity capacitor C2 to serve as the grounding end of the DC power.

[0012] Preferably, a fuse F2 is connected in series to the second live wire input terminal 12 , and the detection signal input terminal of the second detection module 92 is connected to the point a2 after the fuse F2 .

[0013] Preferably, a capacitor filter module 16 is connected in parallel between two input ends of the common mode inductor filter module 3 .

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] 1. The setting of the first rectifier bridge and the second rectifier bridge in this case is convenient for converting the three-input AC power into AC-DC. The setting of the first detection module and the second detection module is convenient for detecting whether there is electricity between the first live wire input terminal and the neutral wire input terminal, and detecting whether there is electricity between the second live wire input terminal and the neutral wire input terminal, so that the main control module can control the operation of the controlled fan motor drive module and the controlled light source drive module according to the detection results; the setting of the common-mode inductor filter module is conducive to suppressing high-frequency interference signals, improving electrical safety, and having good practicality; the input end of the diode unidirectional conduction module is pulsating DC power and the output end is stable DC power, which can meet the application of two loads. The pulsating DC power supplies the light source of the fan lamp through the controlled light source drive module, which can be applied to AC light sources and DC light sources. The stable DC power supplies the DC motor of the fan lamp through the controlled fan motor drive module, which has good stability. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is the structural framework diagram of this case.

[0017] Figure 2 It is one of the partial circuit diagrams of this case.

[0018] Figure 3 This is the second partial circuit diagram of this case. DETAILED DESCRIPTION

[0019] The following examples further illustrate the features of the present invention and other related features to facilitate understanding by those skilled in the art:

[0020] like Figures 1 to 3 As shown, a fan lamp circuit with three input ends includes a neutral line input end 10, a first live line input end 11, a second live line input end 12, a first rectifier bridge 21 with two input ends and two output ends, a second rectifier bridge 22 with two input ends and two output ends, a common mode inductor filter module 3, a diode unidirectional conduction module 4, a polarity capacitor module 5, a main control module 6, a controlled fan motor drive module 7 controlled by the main control module 6, and a controlled light source drive module 8 controlled by the main control module 6. The neutral line input end 10 is connected to one input end of the first rectifier bridge 21 and one input end of the second rectifier bridge 22, the first live line input end 11 is connected to the other input end of the first rectifier bridge 21, the second live line input end 12 is connected to the other input end of the second rectifier bridge 22, the output end positive pole of the first rectifier bridge 21 is connected to the output end positive pole of the second rectifier bridge 22 and the first coil input end of the common mode inductor filter module 3, and the output end negative pole of the second rectifier bridge 22 is connected to the second rectifier bridge 22. The negative pole of the output end of the common-mode inductor filter module 3 is connected to the second coil input end of the common-mode inductor filter module 3, the first coil output end of the common-mode inductor filter module 3 is connected to the positive end of the diode unidirectional conduction module 4 to supply power to the controlled light source driving module 8, the negative end of the diode unidirectional conduction module 4 is connected to the positive end of the polarity capacitor module 5 to supply power to the controlled fan motor driving module 7, the second coil output end of the common-mode inductor filter module 3 is connected to the negative end of the polarity capacitor module 5 as the grounding end of the direct current, the main control module 6 is respectively connected with a first detection module 91 for detecting whether there is electricity between the first live wire input end 11 and the neutral wire input end 10, and a second detection module 92 for detecting whether there is electricity between the second live wire input end 12 and the neutral wire input end 10, and a DC / DC module 15 for providing the required direct current to the main control module 6, the first detection module 91, and the second detection module 92 is connected in parallel between the two output ends of the polarity capacitor module 5.

[0021] As described above, in a specific implementation, the live wire of the external household electricity (AC power) is connected to the first live wire input terminal 11 through the first control switch, and is connected to the second live wire input terminal 12 through the second control switch, while the neutral wire is directly connected to the neutral wire input terminal 10, thereby realizing the function of two external control switches of the fan light circuit.

[0022] As described above, the configuration of the first rectifier bridge 21 and the second rectifier bridge 22 in this case facilitates the AC-DC conversion of the three-input AC power. The configuration of the first detection module 91 and the second detection module 92 facilitates the detection of whether there is electricity between the first live wire input terminal 11 and the neutral wire input terminal 10, and whether there is electricity between the second live wire input terminal 12 and the neutral wire input terminal 10, so that the main control module 6 controls the operation of the controlled fan motor drive module 7 and the controlled light source drive module 8 according to the detection results; the configuration of the common-mode inductor filter module 3 is conducive to suppressing high-frequency interference signals, improving electrical safety, and having good practicality; the input end of the diode unidirectional conduction module 4 is pulsating DC power and the output end is stable DC power, which meets the application of two loads. The pulsating DC power supplies the light source of the fan lamp through the controlled light source drive module 8, which can be applied to AC light sources and DC light sources. The stable DC power supplies the DC motor of the fan lamp through the controlled fan motor drive module 7, and has good stability.

[0023] like Figure 1 , Figure 3 As shown, in a specific implementation, the first detection module 91 includes a diode D2, a resistor R1, an NPN transistor Q1, a voltage regulator Z1, an optical coupler VT1, a resistor R2, and a resistor R3. The positive electrode of the diode D2 is connected to the neutral line input terminal 10, the negative electrode of the diode D2 is connected to one end of the resistor R1 and the collector of the NPN transistor Q1, the other end of the resistor R1 is connected to the base of the NPN transistor Q1 and the negative electrode of the voltage regulator Z1, and the emitter of the NPN transistor Q1 is connected to the optical coupler VT1. The positive electrode of the light-emitting diode of the optocoupler VT1 is connected, the negative electrode of the light-emitting diode of the optocoupler VT1 is connected to one end of the resistor R2, the other end of the resistor R2 is connected to the positive electrode of the voltage-stabilizing tube Z1 and the first live wire input end 11, the transistor collector of the optocoupler VT1 is provided with current by the DC / DC module 15, the transistor emitter of the optocoupler VT1 is connected to one end of the resistor R3 and then connected to a detection signal input end of the main control module 6 as the detection signal output end of the first detection module 91, and the other end of the resistor R3 is grounded.

[0024] like Figure 2 , Figure 3 As shown, in a specific implementation, a fuse F1 is connected in series to the first live wire input terminal 11, and the detection signal input terminal of the first detection module 91 is arranged at a1 point after the fuse F1.

[0025] As described above, when the external first control switch is turned on, AC power is input between the first live wire input terminal 11 and the neutral wire input terminal 10, and the light emitting diode of the optocoupler VT1 in the first detection module 91 is turned on and outputs a signal to its receiving tube, so that the main control module 6 determines that the external first control switch is turned on. Otherwise, when the external first control switch is disconnected, the detection signal input terminal of the main control module 6 is grounded through the resistor R3 and is at a low level.

[0026] like Figure 1 , Figure 3 As shown, in a specific implementation, the second detection module 92 includes a diode D3, a resistor R4, an NPN transistor Q2, a voltage regulator Z2, an optical coupler VT2, a resistor R5, and a resistor R6. The positive electrode of the diode D3 is connected to the neutral line input terminal 10, the negative electrode of the diode D3 is connected to one end of the resistor R4 and the collector of the NPN transistor Q2, the other end of the resistor R4 is connected to the base of the NPN transistor Q2 and the negative electrode of the voltage regulator Z2, and the emitter of the NPN transistor Q2 is connected to the optical coupler VT2. The positive electrode of the light-emitting diode of the optical coupler VT2 is connected, the negative electrode of the light-emitting diode of the optical coupler VT2 is connected to one end of the resistor R5, the other end of the resistor R5 is connected to the positive electrode of the voltage-stabilizing tube Z2 and the second live wire input end 12, the transistor collector of the optical coupler VT2 is provided with a direct current by the DC / DC module 15, the transistor emitter of the optical coupler VT2 is connected to one end of the resistor R6 and then connected to a detection signal input end of the main control module 6 as the detection signal output end of the second detection module 92, and the other end of the resistor R6 is grounded.

[0027] like Figure 2 , Figure 3 As shown, in a specific implementation, a fuse F2 is connected in series to the second live wire input terminal 12, and the detection signal input terminal of the second detection module 92 is arranged at point a2 after the fuse F2.

[0028] When the external second control switch is turned on, AC power is input between the second live wire input terminal 12 and the neutral wire input terminal 10, and the light emitting diode of the optocoupler VT2 in the second detection module 92 is turned on to output a signal to its receiving tube, so that the main control module 6 determines that the external second control switch is turned on. Otherwise, when the external second control switch is disconnected, the detection signal input terminal of the main control module 6 is grounded through the resistor R6 and is at a low level.

[0029] As described above, in specific implementation, the controlled fan motor driving module 7 and the controlled light source driving module 8 respectively adopt controlled MOS tube switch circuits.

[0030] like Figure 2As shown, in a specific implementation, the diode unidirectional conduction module 4 adopts a diode D1, the polarity capacitor module 5 adopts a polarity capacitor C2, the first coil output end of the common-mode inductance filter module 3 is connected to the positive end of the diode D1 to supply power to the controlled light source driving module 8, the negative end of the diode D1 is connected to the positive end of the polarity capacitor C2 to supply power to the controlled fan motor driving module 7, and the second coil output end of the common-mode inductance filter module 3 is connected to the negative end of the polarity capacitor C2 as the grounding end of the DC power.

[0031] like Figure 2 As shown, in a specific implementation, a capacitor filter module 16 is connected in parallel between the two input ends of the common mode inductor filter module 3 .

[0032] As mentioned above, this case protects a three-input fan lamp circuit, and all technical solutions that are the same or similar to this case should be deemed to fall within the protection scope of this case.

Claims

1. A three-input fan light circuit, characterized in that The invention comprises a neutral line input terminal (10), a first live line input terminal (11), a second live line input terminal (12), a first rectifier bridge (21) with two input terminals and two output terminals, a second rectifier bridge (22) with two input terminals and two output terminals, a common mode inductor filter module (3), a diode unidirectional conduction module (4), a polarity capacitor module (5), a main control module (6), a controlled fan motor drive module (7) controlled by the main control module (6), and a controlled light source drive module (8) controlled by the main control module (6), wherein the neutral line input terminal (10) and the first rectifier bridge are connected to each other. The first live wire input end (11) is connected to another input end of the first rectifier bridge (21), the second live wire input end (12) is connected to another input end of the second rectifier bridge (22), the positive pole of the output end of the first rectifier bridge (21) is connected to the positive pole of the output end of the second rectifier bridge (22) and the first coil input end of the common-mode inductor filter module (3), the negative pole of the output end of the second rectifier bridge (22) is connected to the negative pole of the output end of the second rectifier bridge (22). The negative electrode of the common-mode inductor filter module (3) is connected to the second coil input end of the common-mode inductor filter module (3); the first coil output end of the common-mode inductor filter module (3) is connected to the positive end of the diode unidirectional conduction module (4) to supply power to the controlled light source driving module (8); the negative end of the diode unidirectional conduction module (4) is connected to the positive end of the polarity capacitor module (5) to supply power to the controlled fan motor driving module (7); the second coil output end of the common-mode inductor filter module (3) is connected to the negative end of the polarity capacitor module (5) as a direct current. The main control module (6) is respectively connected with a first detection module (91) for detecting whether there is electricity between the first live wire input terminal (11) and the neutral wire input terminal (10), and a second detection module (92) for detecting whether there is electricity between the second live wire input terminal (12) and the neutral wire input terminal (10); and a DC / DC module (15) for providing required direct current to the main control module (6), the first detection module (91), and the second detection module (92) is connected in parallel between the two output terminals of the polarity capacitor module (5).

2. A three-input fan light circuit according to claim 1, characterized in that The first detection module (91) comprises a diode D2, a resistor R1, an NPN transistor Q1, a voltage regulator Z1, an optical coupler VT1, a resistor R2, and a resistor R3, wherein the positive electrode of the diode D2 is connected to the neutral line input terminal (10), the negative electrode of the diode D2 is connected to one end of the resistor R1 and the collector of the NPN transistor Q1, the other end of the resistor R1 is connected to the base of the NPN transistor Q1 and the negative electrode of the voltage regulator Z1, and the emitter of the NPN transistor Q1 is connected to the light emitting diode of the optical coupler VT1. The positive electrode of the light emitting diode of the optical coupler VT1 is connected to one end of the resistor R2, the other end of the resistor R2 is connected to the positive electrode of the voltage regulator tube Z1 and the first live wire input end (11), the transistor collector of the optical coupler VT1 is provided with current by the DC / DC module (15), the transistor emitter of the optical coupler VT1 is connected to one end of the resistor R3 and then connected as the detection signal output end of the first detection module (91) and a detection signal input end of the main control module (6), and the other end of the resistor R3 is grounded.

3. A three-input fan light circuit according to claim 1, characterized in that The second detection module (92) comprises a diode D3, a resistor R4, an NPN transistor Q2, a voltage regulator Z2, an optical coupler VT2, a resistor R5, and a resistor R6, wherein the positive electrode of the diode D3 is connected to the neutral line input terminal (10), the negative electrode of the diode D3 is connected to one end of the resistor R4 and the collector of the NPN transistor Q2, the other end of the resistor R4 is connected to the base of the NPN transistor Q2 and the negative electrode of the voltage regulator Z2, and the emitter of the NPN transistor Q2 is connected to the positive electrode of the light-emitting diode of the optical coupler VT2. The cathode of the light emitting diode of the optical coupler VT2 is connected to one end of the resistor R5, the other end of the resistor R5 is connected to the anode of the voltage regulator tube Z2 and the second live wire input end (12), the transistor collector of the optical coupler VT2 is provided with a direct current by the DC / DC module (15), the transistor emitter of the optical coupler VT2 is connected to one end of the resistor R6 and then serves as the detection signal output end of the second detection module (92) and is connected to a detection signal input end of the main control module (6), and the other end of the resistor R6 is grounded.

4. A three-input fan light circuit according to claim 3, characterized in that A fuse F1 is connected in series to the first live wire input terminal (11), and a detection signal input terminal of the first detection module (91) is connected to a point a1 after the fuse F1.

5. A three-input fan light circuit according to claim 1, characterized in that The controlled fan motor driving module (7) and the controlled light source driving module (8) respectively adopt controlled MOS tube switch circuits.

6. A three-input fan light circuit according to claim 1, characterized in that The diode unidirectional conduction module (4) adopts a diode D1, the polar capacitor module (5) adopts a polar capacitor C2, the first coil output end of the common mode inductor filter module (3) is connected to the positive end of the diode D1 to supply power to the controlled light source drive module (8), the negative end of the diode D1 is connected to the positive end of the polar capacitor C2 to supply power to the controlled fan motor drive module (7), and the second coil output end of the common mode inductor filter module (3) is connected to the negative end of the polar capacitor C2 to serve as a grounding end for direct current.

7. A three-input fan light circuit according to claim 6, characterized in that A fuse F2 is connected in series to the second live wire input terminal (12), and a detection signal input terminal of the second detection module (92) is connected to point a2 after the fuse F2.

8. A three-input fan light circuit according to any one of claims 1 to 7, characterized in that A capacitor filter module (16) is connected in parallel between the two input ends of the common mode inductor filter module (3).

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