Remote control power switch circuit

Abstract

The utility model discloses a remote control power switch circuit, which relates to the technical field of switch control, and comprises a power supply module used for supplying power; the remote control module is used for receiving an infrared signal sent by the infrared remote control device; and the work control module controls the timing control module to start timing work when the remote control module receives the infrared signal for the first time, and the switch control module transmits the electric energy accessed by the power supply module to load equipment connected with the output module during the timing period and when the remote control module receives the infrared signal for the second time. When the timing time exceeds and the infrared signal is not received for the second time, the remote control module controls the reset control module to work, and when the remote control module receives the infrared signal for the third time, the remote control module controls the reset control module to work; and the reset control module is used for controlling the work control module to reset. According to the remote control power switch circuit, remote control and electric energy transmission work caused by mistaken touch can be avoided, and the safety of the circuit is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of switch control, in particular to a remote-controlled power switch circuit. Background Art

[0002] The switch is a commonly used switching element in the field of power electronics. It is mainly used to cut off and open electrical circuits. From the earliest knife switches to the current intelligent electronic switches, people's research on the intelligence and humanization of switches is constantly developing. With the widespread application of various household appliances in people's lives, and the use of relevant infrared remote control devices, the power switch is remotely controlled to improve the intelligence of the power switch. However, when the user accidentally touches the infrared remote control device or the infrared remote control device is interfered by the outside world, the infrared remote control device controls the work of the power switch, there are certain safety hazards, and it is easy to reduce the user's experience of the power switch, so it needs to be improved. Utility Model Content

[0003] The embodiment of the utility model provides a remote-controlled power switch circuit to solve the problems raised in the above-mentioned background technology.

[0004] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0005] A remote-controlled power switch circuit comprises: a power supply module, a remote control module, a working control module, a switch control module, an output module, a timing control module and a reset control module;

[0006] A power module, used to access DC power;

[0007] A remote control module, connected to the power module, configured to receive an infrared signal sent by the infrared remote control device and output a first level signal when the infrared signal is received for the first time, output a second level signal when the infrared signal is received for the second time, and output a third level signal when the infrared signal is received for the third time;

[0008] A working control module, connected to the power module, the remote control module and the reset control module, for receiving a first level signal and continuously outputting a first control signal, for receiving a second level signal and continuously outputting a second control signal, for receiving a third level signal and continuously outputting a third control signal, for receiving a reset signal output by the reset control module and performing a reset operation and stopping outputting signals;

[0009] A switch control module, connected to the working control module, the power module and the output module, for receiving a second control signal output by the working control module and transmitting the DC power connected to the power module to the output module;

[0010] An output module, used to connect to a load device and receive electric energy transmitted by the switch control module;

[0011] A timing control module, connected to the working control module, for receiving a first control signal and starting a timing operation, and for outputting a timing control signal after the timing is completed;

[0012] The reset control module is connected to the timing control module and the power supply module, and is used to receive the third control signal and the timing control signal and provide a reset signal for the working control module.

[0013] As a further solution of the utility model: the power module includes a power interface and a first capacitor; the remote control module includes a first receiving device, a first switch tube and a first resistor;

[0014] Preferably, the first end of the power interface is connected to one end of the first capacitor, the VCC end of the first receiving device and the collector of the first switching tube, the OUT end of the first receiving device is connected to the base of the first switching tube, the emitter of the first switching tube is connected to the ground end through the first resistor, and the GND end of the first receiving device, the other end of the first capacitor and the second end of the power interface are all grounded.

[0015] As a further solution of the utility model: the working control module includes a first counter, a first diode, a third resistor, a third switch tube and a second diode;

[0016] Preferably, the VDD end of the first counter is connected to the first end of the power supply interface and one end of the third resistor, the R end of the first counter is connected to the reset control module, the CP end of the first counter is connected to the emitter of the first switching tube, the anode of the second diode, the EN end and the VSS end of the first counter are all grounded, the Y0 end of the first counter is connected to the base of the third switching tube, the collector of the third switching tube is connected to the other end of the third resistor, the emitter of the third switching tube is connected to the timing control module and the cathode of the second diode, the Y1 end of the first counter is connected to the switch control module, the Y2 end of the first counter is connected to the anode of the first diode, and the cathode of the first diode is connected to the reset control module.

[0017] As a further solution of the utility model: the reset control module includes a second switch tube and a second resistor;

[0018] Preferably, the collector of the second switch tube is connected to the first end of the power interface, the emitter of the second switch tube is connected to the R end of the first counter and grounded through the second resistor, and the base of the second switch tube is connected to the cathode of the first diode and the timing control module.

[0019] As a further solution of the utility model: the switch control module includes a first power tube, a fourth resistor and a fourth switch tube; the output module includes a second capacitor and an output port;

[0020] Preferably, the drain of the first power tube is connected to the first end of the power interface and is connected to the gate of the first power tube and the collector of the fourth switch tube through a fourth resistor, the base of the fourth switch tube is connected to the Y1 end of the first counter, the source of the first power tube is connected to the first end of the output port and one end of the second capacitor, and the emitter of the fourth switch tube, the other end of the second capacitor and the second end of the output port are all grounded.

[0021] As a further solution of the utility model: the timing control module includes a third capacitor, a third diode, a fifth resistor, a first timer, a fourth capacitor and a fourth diode;

[0022] Preferably, one end of the third capacitor, the fourth end and the eighth end of the first timer are all connected to the cathode of the second diode, the other end of the third capacitor is connected to the cathode of the third diode, one end of the fifth resistor, the second end and the sixth end of the first timer, the anode of the third diode, the other end of the fifth resistor, the first end of the first timer and one end of the fourth capacitor are all grounded, the other end of the fourth capacitor is connected to the fifth end of the first timer, the third end of the first timer is connected to the anode of the fourth diode, and the cathode of the fourth diode is connected to the base of the second switching tube.

[0023] Compared with the prior art, the beneficial effects of the utility model are as follows: the remote-controlled power switch circuit of the utility model receives infrared rays by the remote control module to trigger the operation of the working control module. When the infrared signal is received for the first time, the timing control module will be triggered to start the timing operation, and within the timing time, after the infrared signal is received for the second time, the switch control module will be controlled to power the output module. If the infrared signal is not received for the second time within the timing time, the reset control module will reset the working control module and restart the counting. After the infrared signal is received for the third time, the reset control module will also reset the working control module and stop the power transmission of the switch control module to avoid power transmission due to accidental touch, while improving the safety of the circuit. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the description of the embodiments of the utility model will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0025] Figure 1 The present invention provides a schematic block diagram of a remote-controlled power switch circuit.

[0026] Figure 2A circuit diagram of a remote-controlled power switch circuit provided in an example of the utility model.

[0027] Figure 3 This is a connection circuit diagram of a timing control module provided by an example of the utility model. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0029] In one embodiment, see Figure 1 , a remote-controlled power switch circuit, comprising: a power supply module 1, a remote control module 2, a working control module 3, a switch control module 4, an output module 5, a timing control module 6 and a reset control module 7;

[0030] Specifically, the power module 1 is used to access DC power;

[0031] A remote control module 2, connected to the power module 1, for receiving an infrared signal sent by the infrared remote control device and outputting a first level signal when the infrared signal is received for the first time, a second level signal when the infrared signal is received for the second time, and a third level signal when the infrared signal is received for the third time;

[0032] A working control module 3, connected to the power module 1, the remote control module 2 and the reset control module 7, for receiving a first level signal and continuously outputting a first control signal, for receiving a second level signal and continuously outputting a second control signal, for receiving a third level signal and continuously outputting a third control signal, for receiving a reset signal output by the reset control module 7 and performing a reset operation and stopping outputting signals;

[0033] The switch control module 4 is connected to the working control module 3, the power module 1 and the output module 5, and is used to receive the second control signal output by the working control module 3 and transmit the DC power connected to the power module 1 to the output module 5;

[0034] The output module 5 is used to connect to the load device and receive the electric energy transmitted by the switch control module 4;

[0035] The timing control module 6 is connected to the working control module 3, and is used to receive the first control signal and start the timing work, and is used to output the timing control signal after the timing ends;

[0036] The reset control module 7 is connected to the timing control module 6 and the power supply module 1 , and is used to receive the third control signal and the timing control signal and provide a reset signal for the working control module 3 .

[0037] In a specific embodiment, the power supply module 1 can adopt a power supply circuit composed of a power supply interface and a capacitor to access DC power; the remote control module 2 can adopt a remote control circuit composed of an infrared receiving device, a transistor, etc. to remotely receive infrared signals and control the operation of the working control module 3; the working control module 3 can adopt a working control circuit composed of a counter, a transistor, a diode, etc. to control the working states of the switch control module 4, the timing control module 6 and the reset control module 7 according to the number of infrared signals received by the remote control module 2; the switch control module 4 can adopt a switch control circuit composed of a power tube, a transistor, etc. to control power transmission; the output module 5 can adopt an output circuit composed of an output port and a capacitor to connect to a load device; the timing control module 6 can adopt a timing control circuit composed of a timer, a diode, a capacitor, etc. to start timing work after power is supplied, and output a signal in a high level state after the timing ends; the reset control module 7 can adopt a reset control circuit composed of a transistor and a resistor to reset the working control module 3.

[0038] In another embodiment, see Figure 1 , Figure 2 and Figure 3 The power module 1 includes a power interface and a first capacitor C1; the remote control module 2 includes a first receiving device U1, a first switch tube VT1 and a first resistor R1;

[0039] Specifically, the first end of the power interface is connected to one end of the first capacitor C1, the VCC end of the first receiving device U1 and the collector of the first switch tube VT1, the OUT end of the first receiving device U1 is connected to the base of the first switch tube VT1, the emitter of the first switch tube VT1 is connected to the ground end through the first resistor R1, and the GND end of the first receiving device U1, the other end of the first capacitor C1 and the second end of the power interface are all grounded.

[0040] In a specific embodiment, the first receiving device U1 may be an infrared receiving device, and the specific model is not limited; the first switching tube VT1 may be an NPN transistor.

[0041] Furthermore, the working control module 3 includes a first counter U2, a first diode D1, a third resistor R3, a third switch tube VT3 and a second diode D2;

[0042] Specifically, the VDD end of the first counter U2 is connected to the first end of the power supply interface and one end of the third resistor R3, the R end of the first counter U2 is connected to the reset control module 7, the CP end of the first counter U2 is connected to the emitter of the first switch tube VT1, the anode of the second diode D2, the EN end and the VSS end of the first counter U2 are all grounded, the Y0 end of the first counter U2 is connected to the base of the third switch tube VT3, the collector of the third switch tube VT3 is connected to the other end of the third resistor R3, the emitter of the third switch tube VT3 is connected to the timing control module 6 and the cathode of the second diode D2, the Y1 end of the first counter U2 is connected to the switch control module 4, the Y2 end of the first counter U2 is connected to the anode of the first diode D1, and the cathode of the first diode D1 is connected to the reset control module 7.

[0043] In a specific embodiment, the above-mentioned first counter U2 can select a CD4017 chip, the VDD terminal of the first counter U2 is the power supply terminal, the CP terminal of the first counter U2 is the pulse input terminal, the R terminal, EN terminal, VSS terminal, Y0 terminal, Y1 terminal and Y2 terminal of the first counter U2 are respectively a reset terminal, an enable terminal, a ground terminal, a first output terminal, a second output terminal and a third output terminal.

[0044] Furthermore, the reset control module 7 includes a second switch tube VT2 and a second resistor R2;

[0045] Specifically, the collector of the second switch tube VT2 is connected to the first end of the power interface, the emitter of the second switch tube VT2 is connected to the R end of the first counter U2 and grounded through the second resistor R2, and the base of the second switch tube VT2 is connected to the cathode of the first diode D1 and the timing control module 6.

[0046] In a specific embodiment, the second switch tube VT2 can be a NPN transistor.

[0047] Furthermore, the switch control module 4 includes a first power tube Q1, a fourth resistor R4 and a fourth switch tube VT4; the output module 5 includes a second capacitor C2 and an output port;

[0048] Specifically, the drain of the first power tube Q1 is connected to the first end of the power interface and is connected to the gate of the first power tube Q1 and the collector of the fourth switch tube VT4 through the fourth resistor R4, the base of the fourth switch tube VT4 is connected to the Y1 end of the first counter U2, the source of the first power tube Q1 is connected to the first end of the output port and one end of the second capacitor C2, and the emitter of the fourth switch tube VT4, the other end of the second capacitor C2 and the second end of the output port are all grounded.

[0049] In a specific embodiment, the first power tube Q1 may be a P-channel field effect tube; and the fourth switch tube VT4 may be an NPN transistor.

[0050] Further, the timing control module 6 includes a third capacitor C3, a third diode D3, a fifth resistor R5, a first timer U3, a fourth capacitor C4 and a fourth diode D4;

[0051] Specifically, one end of the third capacitor C3, the fourth end and the eighth end of the first timer U3 are all connected to the cathode of the second diode D2, the other end of the third capacitor C3 is connected to the cathode of the third diode D3, one end of the fifth resistor R5, the second end and the sixth end of the first timer U3, the anode of the third diode D3, the other end of the fifth resistor R5, the first end of the first timer U3 and one end of the fourth capacitor C4 are all grounded, the other end of the fourth capacitor C4 is connected to the fifth end of the first timer U3, the third end of the first timer U3 is connected to the anode of the fourth diode D4, and the cathode of the fourth diode D4 is connected to the base of the second switch tube VT2.

[0052] In a specific embodiment, the first timer U3 may use a NE555 chip, and cooperate with the third capacitor C3, the third diode D3, the fifth resistor R5, the fourth capacitor C4 and the fourth diode D4 to perform timing work.

[0053] In a remote-controlled power switch circuit of the present embodiment, direct current power is connected by a power interface, and a first receiving device U1 receives a remotely transmitted infrared signal. After receiving the infrared signal, the first switch tube VT1 is controlled to be turned on. When the infrared signal is received for the first time, the first switch tube VT1 is turned on so that the first counter U2 obtains a high-level signal, so that the Y0 terminal of the first counter U2 outputs a high-level signal, and triggers the third switch tube VT3 to be turned on. At this time, the first timer U3 is powered on and starts timing work. During the timing period, if the first receiving device U1 receives the infrared signal for the second time, the first switch tube VT1 is turned on again, the first counter U2 obtains a high-level signal again, and the Y1 terminal of the first counter U2 outputs a high-level signal. At this time, the fourth switch tube VT4 is controlled The first power tube Q1 is turned on, and then controls the first power tube Q1 to be turned on to power the output port. After the first receiving device U1 receives the infrared signal for the third time, the Y2 end of the first counter U2 outputs a high-level signal, and controls the second switch tube VT2 to be turned on. The second switch tube VT2 provides a reset signal to the R end of the first counter U2, the first counter U2 is reset, and the counting work is restarted. The fourth switch tube VT4 is also turned off, the first power tube Q1 is turned off, and the power transmission work is stopped. If the timing time of the first timer U3 is exceeded and the first receiving device U1 does not receive the infrared signal, the third end of the first timer U3 will output a high-level signal to control the second switch tube VT2 to be turned on. The second switch tube VT2 provides a reset signal to the R end of the first counter U2, the first counter U2 is reset, and the counting work is restarted.

[0054] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

[0055] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A remote controlled power switch circuit, characterized in that: The remote-controlled power switch circuit includes: a power supply module, a remote control module, a work control module, a switch control module, an output module, a timing control module and a reset control module; The power module is used to access direct current power; The remote control module is connected to the power module, and is used to receive an infrared signal sent by the infrared remote control device and output a first level signal when receiving the infrared signal for the first time, output a second level signal when receiving the infrared signal for the second time, and output a third level signal when receiving the infrared signal for the third time; The working control module is connected to the power module, the remote control module and the reset control module, and is used to receive a first level signal and continuously output a first control signal, to receive a second level signal and continuously output a second control signal, to receive a third level signal and continuously output a third control signal, and to receive a reset signal output by the reset control module and perform a reset operation and stop outputting signals; The switch control module is connected to the working control module, the power module and the output module, and is used to receive the second control signal output by the working control module and transmit the DC power connected to the power module to the output module; The output module is used to connect to the load device and receive the electric energy transmitted by the switch control module; The timing control module is connected to the working control module, and is used to receive the first control signal and start the timing work, and is used to output the timing control signal after the timing ends; The reset control module is connected to the timing control module and the power supply module, and is used to receive the third control signal and the timing control signal and provide a reset signal for the working control module.

2. A remote controlled power switch circuit according to claim 1, characterized in that: The power module includes a power interface and a first capacitor; the remote control module includes a first receiving device, a first switch tube and a first resistor; The first end of the power interface is connected to one end of the first capacitor, the VCC end of the first receiving device and the collector of the first switching tube, the OUT end of the first receiving device is connected to the base of the first switching tube, the emitter of the first switching tube is connected to the ground end through the first resistor, and the GND end of the first receiving device, the other end of the first capacitor and the second end of the power interface are all grounded.

3. A remote controlled power switch circuit according to claim 2, characterized in that: The work control module includes a first counter, a first diode, a third resistor, a third switch tube and a second diode; The VDD end of the first counter is connected to the first end of the power supply interface and one end of the third resistor, the R end of the first counter is connected to the reset control module, the CP end of the first counter is connected to the emitter of the first switch tube, the anode of the second diode, the EN end and the VSS end of the first counter are all grounded, the Y0 end of the first counter is connected to the base of the third switch tube, the collector of the third switch tube is connected to the other end of the third resistor, the emitter of the third switch tube is connected to the timing control module and the cathode of the second diode, the Y1 end of the first counter is connected to the switch control module, the Y2 end of the first counter is connected to the anode of the first diode, and the cathode of the first diode is connected to the reset control module.

4. A remote controlled power switch circuit according to claim 3, characterized in that: The reset control module includes a second switch tube and a second resistor; The collector of the second switch tube is connected to the first end of the power interface, the emitter of the second switch tube is connected to the R end of the first counter and grounded through the second resistor, and the base of the second switch tube is connected to the cathode of the first diode and the timing control module.

5. A remote controlled power switch circuit according to claim 4, characterized in that: The switch control module includes a first power tube, a fourth resistor and a fourth switch tube; the output module includes a second capacitor and an output port; The drain of the first power tube is connected to the first end of the power interface and is connected to the gate of the first power tube and the collector of the fourth switch tube through a fourth resistor. The base of the fourth switch tube is connected to the Y1 end of the first counter. The source of the first power tube is connected to the first end of the output port and one end of the second capacitor. The emitter of the fourth switch tube, the other end of the second capacitor and the second end of the output port are all grounded.

6. A remote controlled power switch circuit according to claim 5, characterized in that: The timing control module includes a third capacitor, a third diode, a fifth resistor, a first timer, a fourth capacitor and a fourth diode; One end of the third capacitor, the fourth end and the eighth end of the first timer are all connected to the cathode of the second diode, the other end of the third capacitor is connected to the cathode of the third diode, one end of the fifth resistor, the second end and the sixth end of the first timer, the anode of the third diode, the other end of the fifth resistor, the first end of the first timer and one end of the fourth capacitor are all grounded, the other end of the fourth capacitor is connected to the fifth end of the first timer, the third end of the first timer is connected to the anode of the fourth diode, and the cathode of the fourth diode is connected to the base of the second switching tube.

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