CN209001918U - A kind of power switch circuit - Google Patents
A kind of power switch circuit Download PDFInfo
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- CN209001918U CN209001918U CN201821909155.7U CN201821909155U CN209001918U CN 209001918 U CN209001918 U CN 209001918U CN 201821909155 U CN201821909155 U CN 201821909155U CN 209001918 U CN209001918 U CN 209001918U
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Abstract
The utility model embodiment discloses a kind of power switch circuit.Including radio circuit, power-supply circuit and at least one relay.The technical solution of the utility model can control the on-off of load and power supply by the closing or opening of banked relay, without controlling the on-off of load and power supply by manipulation mechanical switch as user in the prior art must move at mechanical switch.
Description
Technical field
The utility model embodiment is related to field of circuit technology more particularly to a kind of power switch circuit.
Background technique
Currently, most of loads require switch to control the connection status between load and power supply.Existing switch base
This is all the switch locally manually controlled, such as moving seesaw-type mechanical switch or pullswitch.
But the switch of the prior art is very inconvenient, particularly with the user having a bad memory, just finds after often going out
Forget to disconnect the connection loaded in family with power supply, can not but disconnect the connection loaded in family with power supply immediately, cause the wave of the energy
Take.
Utility model content
The utility model provides a kind of power switch circuit, controls load to realize the closing or opening of banked relay
With the on-off of power supply, it is not necessary that load is controlled at mechanical switch by manipulation mechanical switch as user in the prior art must move to
With the on-off of power supply.
In a first aspect, the utility model embodiment provides a kind of power switch circuit, including radio circuit, power-supply circuit
With at least one relay；
The first input end of power-supply circuit is electrically connected with firewire, and the second input terminal of power-supply circuit is electrically connected with zero curve, is taken
The voltage output end of circuit is electrically connected with the first control terminal of the power input of radio circuit and relay, power-supply circuit
For the voltage between firewire and zero curve to be converted to the operating voltage of radio circuit and relay；
The relay control signal output end of radio circuit is electrically connected with the second control terminal of relay, and radio circuit is connecing
The second control terminal input relay control when receiving switch control signal, by the control signal output of relay to relay
Signal processed is shorted or disconnects to control first input end and the second input terminal of relay；
The first input end of relay is electrically connected with firewire, and the second input terminal of relay is electrically connected with one end of load,
The other end of load is electrically connected with zero curve.
Further, radio circuit controls relay, the base stage of triode and the relay of radio circuit by triode
Control signal output electrical connection, the collector of triode are electrically connected with the second control terminal of relay, the emitter of triode
Ground connection.
Further, power switch circuit can also include first resistor and second resistance；
The first end of first resistor is electrically connected with the base stage of triode, the second end of first resistor and the relay of radio circuit
The electrical connection of device control signal output；
The first end of second resistance is electrically connected with the second end of first resistor, the second end ground connection of second resistance.
Further, power switch circuit can also include relay protection circuit, and relay protection circuit includes third
Resistance and first capacitor；
The first end of first capacitor is electrically connected with the second input terminal of relay, the second end and 3rd resistor of first capacitor
First end electrical connection；
The second end of 3rd resistor is grounded.
Further, power switch circuit can also include freewheeling diode；The anode of freewheeling diode and relay
The electrical connection of second control terminal, the cathode of freewheeling diode are electrically connected with the first control terminal of relay.
Further, power switch circuit can also include mechanical switching circuit, the output end of mechanical switching circuit with penetrate
The mechanical switch signal receiving end of frequency circuit is electrically connected, wherein when the mechanical switch closure in mechanical switching circuit, radio frequency electrical
Road controls the first input end of relay and the second input terminal is shorted, and when the mechanical switch in mechanical switching circuit disconnects, penetrates
Frequency circuit controls the first input end of relay and the second input terminal disconnects.
Further, mechanical switching circuit includes a mechanical switch, the first end of mechanical switch and the machine of radio circuit
The electrical connection of tool switching signal receiving end, the second end ground connection of mechanical switch, when mechanical switch is closed, radio circuit passes through relay
Control all loaded work pieces.
Further, power switch circuit includes N number of relay, and mechanical switching circuit includes N number of output end, radio circuit
Including N number of mechanical switch signal receiving end and N number of relay control signal output end；
N number of output end of mechanical switching circuit is corresponded with N number of mechanical switch signal receiving end of radio circuit respectively
Electrical connection, N number of relay control signal output end of radio circuit correspond electricity with the second control terminal of N number of relay respectively
Connection, when the closure of the mechanical switch corresponding to the m-th output end of mechanical switching circuit, radio circuit controls m-th relay
The first input end of device and the second input terminal are shorted；Wherein, N is positive integer, and M is the positive integer less than or equal to N.
Further, power switch circuit can also include indicator light circuit, the input terminal and radio frequency electrical of indicator light circuit
The indicator light control signal output on road is electrically connected, wherein when the first input end of relay and the second input terminal are shorted, is referred to
Show that lamp is bright, when the first input end of relay and the disconnection of the second input terminal, indicator light off.
Further, power-supply circuit includes AC-DC conversion circuit and DC-DC conversion circuit；
The voltage output end of AC-DC conversion circuit is straight with the first control signal and direct current-of relay respectively
The voltage input end electrical connection of conversion circuit is flowed, the voltage output end of DC-DC conversion circuit and the power supply of radio circuit are defeated
Enter end electrical connection.
The utility model controls relay closing or opening according to the switch control signal received by radio circuit, into
And realize on-off between load and power supply, solution must move at mechanical switch in the prior art and be controlled by manipulation mechanical switch
The on-off problem of system load and power supply, realizes the effect of remote control load and on/off.
Detailed description of the invention
Fig. 1 is a kind of power switch circuit structural schematic diagram provided by the embodiment of the utility model；
Fig. 2 is another power switch circuit structural schematic diagram provided by the embodiment of the utility model；
Fig. 3 is the circuit element diagram of power-supply circuit provided by the embodiment of the utility model.
Specific embodiment
The utility model is described in further detail with reference to the accompanying drawings and examples.It is understood that herein
Described specific embodiment is used only for explaining the utility model, rather than the restriction to the utility model.It further needs exist for
It is bright, part relevant to the utility model is illustrated only for ease of description, in attached drawing rather than entire infrastructure.
Fig. 1 is a kind of power switch circuit structural schematic diagram provided by the embodiment of the utility model.Referring to Fig. 1, power supply is opened
Powered-down road includes radio circuit 110, power-supply circuit 120 and relay 130.First input end and firewire the L electricity of power-supply circuit 120
Connection, the second input terminal of power-supply circuit 120 are electrically connected with zero curve N, the voltage output end and radio circuit of power-supply circuit 120
The first control terminal electrical connection of 110 power input and relay 130；The relay control signal of radio circuit 110 is defeated
Outlet is electrically connected with the second control terminal of relay 130, and the first input end of relay 130 is electrically connected with firewire L, relay
130 the second input terminal is electrically connected with one end of load, and the other end of load is electrically connected with zero curve N.
Illustratively, radio circuit 110 is when receiving switch control signal, by relay control signal output end to
Second control terminal input relay of relay 130 controls signal, to control the first input end and relay of relay 130
130 the second input terminal is shorted or disconnects；When the first input end of relay 130 and the second input terminal of relay 130 are shorted
When, load, zero curve N and firewire L forming circuit, when the first input end of relay 130 and the second input terminal of relay 130 are disconnected
When opening, load, zero curve N and firewire L cannot be formed into a loop.In above process, power-supply circuit 120 is used for firewire L and zero curve N
Between voltage be converted to the operating voltage of radio circuit 110 and relay 130, provided for radio circuit 110 and relay 130
Working power.
The technical solution of the present embodiment controls relay according to the switch control signal received by radio circuit 110
130 closing or openings, and then control whether load, zero curve N and firewire L are formed into a loop, solution must move to machine in the prior art
The on-off problem for carrying out load with power supply at tool switch by manipulating mechanical switch, realizes the effect of remote-controlled power switch.
It should be noted that it includes that a relay 130 and one are negative that Fig. 1, which exemplarily only shows power switch circuit,
It carries, but power switch circuit can also be arranged in other embodiments for the restriction not to the application power switch circuit
Multiple loads are controlled simultaneously for a relay 130, power switch circuit can also be set as including multiple 130 Hes of relay
Multiple loads, relay 130 control a load, it is to be appreciated that radio circuit 110 need accordingly to be arranged it is multiple after
Electrical appliance control signal output end.
With continued reference to Fig. 1, power switch circuit can also include indicator light circuit 140 and mechanical switching circuit 150.It is mechanical
The output end of switching circuit 150 is electrically connected with the mechanical switch signal receiving end of radio circuit 110, indicator light circuit 140 it is defeated
Enter end to be electrically connected with the indicator light control signal output of radio circuit 110, the power input of mechanical switching circuit 150 and refer to
The power input of indication lamp circuit 140 is electrically connected with the voltage output end of power-supply circuit 120.
Illustratively, when the mechanical switch closure in mechanical switching circuit 150, radio circuit 110 controls relay 130
First input end and the second input terminal of relay 130 be shorted, the circuit that load, zero curve N and firewire L are formed indicates simultaneously
Indicator light in circuit for lamp 140 is bright；When the mechanical switch in mechanical switching circuit 150 disconnects, radio circuit 110 controls relay
The first input end of device 130 and the second input terminal of relay 130 disconnect, while indicator light off in indicator light circuit 140.
The advantages of this arrangement are as follows radio circuit 110 not only can receive wireless switching control signal, according to wirelessly opening
OFF signal controls the on-off of relay 130, electric switch control signal can also be received, according to mechanical in mechanical switching circuit 150
Switch on-off control relay 130 on-off so that user not only can with remote control switch power supply but also can by mechanical switch come
Switching Power Supply provides multiple choices for user.
Optionally, mechanical switching circuit 150 include a mechanical switch (Fig. 1 is not shown), the first end of mechanical switch with
The mechanical switch signal receiving end of radio circuit 110 is electrically connected, and the second end ground connection of mechanical switch is penetrated when mechanical switch is closed
Frequency circuit 110 controls all loaded work pieces by relay 130.Correspondingly, indicator light circuit 140 includes an indicator light (Fig. 1
It is not shown), when mechanical switch closure (i.e. all loads access power supply), indicator light is bright.Setting allows user same in this way
When control it is multiple load whether access power supply.
Optionally, power switch circuit includes N number of relay (Fig. 1 is not shown), and mechanical switching circuit 150 includes N number of defeated
Outlet, radio circuit 110 include N number of mechanical switch signal receiving end and N number of relay control signal output end；Mechanical switch
N number of output end of circuit 150 is electrically connected with N number of mechanical switch signal receiving end of radio circuit 110 one-to-one correspondence respectively, radio frequency
N number of relay control signal output end of circuit 110 is electrically connected with the second control terminal of N number of relay one-to-one correspondence respectively, when
When mechanical switch corresponding to the m-th output end of mechanical switching circuit 150 is closed, radio circuit 110 controls m-th relay
First input end and the second input terminal be shorted；Wherein, N is positive integer, and M is the positive integer less than or equal to N, the occurrence of M and N
It can set according to actual needs, the application is not construed as limiting this.Correspondingly, indicator light circuit 140 includes that (Fig. 1 is not for N number of indicator light
Show), when N number of indicator light and N number of load correspond instruction, i.e. m-th loaded work piece, m-th indicator light is bright.It is arranged in this way
User is allowed selectively to control whether certain loads access power supply according to actual needs.
Fig. 2 is another power switch circuit structural schematic diagram provided by the embodiment of the utility model.Illustratively, reference
Fig. 2, radio circuit 110 include that radio frequency mould group RF, Fig. 2 only show radio frequency mould group RF pin relevant to power switch circuit, are penetrated
The pin VCC1 and VCC2 of frequency mould group RF is electrically connected with the second voltage output end VCC-2 of power-supply circuit 120, radio frequency mould group RF
Pin VCC1 and VCC2 be electrically connected with the first end of the second capacitor C2, the second end of the second capacitor C2 is grounded GND；Radio frequency mould
Pin GND1, GND2 and GND3 of group RF is grounded GND；Pin SCK, SOA and RST of radio frequency mould group RF is the burning of radio frequency mould group RF
Mouth is recorded, for software program burning to be entered radio frequency mould group RF；Pin P17, pin P16, pin P15 and the pin of radio frequency mould group RF
P14 is respectively the first indicator light control signal output of radio circuit 110, the second indicator light control signal output, third
Indicator light control signal output and the 4th indicator light control signal output, corresponding the first input with indicator light circuit 150
End, the second input terminal, third input terminal and the electrical connection of the 4th input terminal；Pin P04, the pin P05, pin of radio frequency mould group RF
P06 and pin P07 be respectively the first mechanical switch signal receiving end of radio circuit 110, the second mechanical switch signal receiving end,
Third mechanical switch signal receiving end and the 4th mechanical switch signal receiving end, it is corresponding first defeated with mechanical switching circuit 150
Outlet, second output terminal, third output end and the electrical connection of the 4th output end；Pin P11, the pin P10 of radio frequency mould group RF and
Pin P03 be respectively the first relay control signal output end of radio circuit 110, the second relay control signal output end and
Third relay control signal output end, the of corresponding the second control signal with the first relay K1, the second relay K2
Two control signals and the electrical connection of the second control signal of third relay K3, the first relay K1, the second relay K2
It is electrically connected with the first voltage output end VCC-1 of power-supply circuit 120 with third relay K3.
Optionally, power switch circuit can also include the first triode Q1, the second triode Q2 and third transistor Q3.
The base stage of first triode Q1 is electrically connected, first with the pin P11 (the first relay control signal output end) of radio frequency mould group RF
The collector of triode Q1 is electrically connected with the second control terminal of the first relay K1, the emitter ground connection of the first triode Q1；The
The base stage of two triode Q2 is electrically connected, the two or three with the pin P10 (the second relay control signal output end) of radio frequency mould group RF
The collector of pole pipe Q2 is electrically connected with the second control terminal of the second relay K2, the emitter ground connection of the second triode Q2；Third
The base stage of triode Q3 is electrically connected, the three or three pole with the pin P03 (third relay control signal output end) of radio frequency mould group RF
The collector of pipe Q3 is electrically connected with the second control terminal of third relay K3, the emitter ground connection of third transistor Q3.
Setting in this way so that the pin P11 of the first relay K1 and radio frequency mould group RF keep apart, although flow through first after
The electric current of electric appliance K1 is larger, but the electric current for flowing through the first triode Q1 base stage is smaller, because without due to flowing through the first relay
The larger pin P11 for leading to radio frequency mould group RF of the electric current of device K1 is burnt out.Second triode Q2 and third transistor Q3 are opened in power supply
Effect played in powered-down road is similar with effect of the first triode Q1 played in power switch circuit, and details are not described herein again.
Optionally, power switch circuit can also include first resistor R1, second resistance R2, the 19th resistance R19, second
Ten resistance R20, the 22nd resistance R22 and the 23rd resistance R23.The first end of first resistor R1 is with the first triode Q1's
Base stage electrical connection, the second end of first resistor R1 and the pin P11 (the first relay control signal output end) of radio frequency mould group RF
Electrical connection, the first end of second resistance R2 are electrically connected with the first end of first resistor R1, the second end ground connection of second resistance R2；The
The first end of 19 resistance R19 is electrically connected with the base stage of the second triode Q2, the second end and radio frequency mould group of the 19th resistance R19
The pin P10 (the second relay control signal output end) of RF is electrically connected, the first end and the 19th resistance of the 20th resistance R20
The first end of R19 is electrically connected, the second end ground connection of the 20th resistance R20；The first end of 22nd resistance R22 and the three or three pole
The base stage of pipe Q3 is electrically connected, the second end of the 22nd resistance R22 and pin P03 (the third relay control of radio frequency mould group RF
Signal output end) it is electrically connected, the first end of the 23rd resistance R23 is electrically connected with the first end of the 22nd resistance R22, and second
The second end of 13 resistance R23 is grounded.
Wherein, first resistor R1 plays the role of current limliting, while by the base stage of the first triode Q1 with radio frequency mould group RF's
Pin P11 keeps apart, and when preventing the pin P11 of radio frequency mould group RF from exporting high level, the one or three pole is burnt out since electric current is excessive
The base stage of pipe Q1.Second resistance R2 plays the role of preventing noise, when radio frequency mould group RF is powered for the first time, radio frequency mould group RF's
Pin P11 is possible to output high level, it is also possible to low level is exported, it is very unstable, and when pin P11 exports a spike
When voltage, which can be dragged down, the first triode Q1 will not be led since the duration is shorter by second resistance R2
It is logical；When pin P11 exports a stable high level, which will not be dragged down by second resistance R2, the one or three pole
Pipe Q1 conducting.Effect and two ten two electricity of the 19th resistance R19 and the 20th resistance R20 played in power switch circuit
The effect and first resistor R1 and second resistance R2 of R22 and the 23rd resistance R23 played in power switch circuit are hindered in electricity
Effect played in source switching circuit is similar, and details are not described herein again.
Optionally, power switch circuit can also include relay protection circuit 160, and relay protection circuit 160 includes
3rd resistor R3, first capacitor C1, the 11st capacitor C11, the 21st resistance R21, the electricity of the 12nd capacitor C12 and the 24th
Hinder R24.The first end of first capacitor C1 is electrically connected with the second input terminal of the first relay K1, the second end of first capacitor C1 with
The first end of 3rd resistor R3 is electrically connected, and the second end of 3rd resistor R3 is electrically connected with zero curve N；The first of 11st capacitor C11
End is electrically connected with the second input terminal of the second relay K2, and the of the second end of the 11st capacitor C11 and the 21st resistance R21
One end electrical connection, the second end of the 21st resistance R21 are electrically connected with zero curve N；The first end and third of 12nd capacitor C12 after
The second input terminal of electric appliance K3 is electrically connected, and the second end of the 12nd capacitor C12 and the first end of the 24th resistance R22 are electrically connected
It connects, the second end of the 24th resistance R24 is electrically connected with zero curve N.
Wherein, the first relay K1 can generate electric spark in the moment opened or closed, if without 3rd resistor R3 and
One capacitor C1, electric spark can be added between the first input end of the first relay K1 and the second input terminal of the first relay K1,
Second input terminal of the first input end and the first relay K1 that easily cause the first relay K1 cannot be according to the first relay
The first control signal of device K1 and the voltage difference of the second control signal realize short circuit or disconnection, and (i.e. relay is not opened or is closed
Constantly), under the action of 3rd resistor R3 and first capacitor C1, electric spark flows to zero by first capacitor C1 and 3rd resistor R3
Line N, without being added between the first input end of the first relay K1 and the second input terminal of the first relay K1, to reduce
Loss to the first relay K1.Effect of the 11st capacitor C11 and the 21st resistance R21 played in power switch circuit
And the 12nd effect of the capacitor C12 and the 24th resistance R24 played in power switch circuit and 3rd resistor R3 and the
Effect of the one capacitor C1 played in power switch circuit is similar, and details are not described herein again.
Optionally, power switch circuit can also include afterflow first diode FD1, the second freewheeling diode FD2 and the
Three freewheeling diode FD3.The anode of first freewheeling diode FD1 is electrically connected with the second control terminal of the first relay K1, and first
The cathode of freewheeling diode FD1 is electrically connected with the first control terminal of the first relay K1；Second freewheeling diode FD2 anode with
The second control terminal of second relay K2 is electrically connected, the first control of the cathode of the second freewheeling diode FD2 and the second relay K2
End electrical connection processed；The anode of third freewheeling diode FD3 is electrically connected with the second control terminal of third relay K3, third afterflow two
The cathode of pole pipe FD3 is electrically connected with the first control terminal of third relay K3.
Wherein, the first freewheeling diode FD1 plays the role of afterflow, the first control signal of the first relay K1 and
It is connected with coil between two control signals, when the voltage of the first control signal is greater than the voltage of the second control signal,
There is electric current to flow through in coil；When the voltage of the first control signal is less than or equal to the voltage of the second control signal, due to line
Circle can store energy, and coil both ends can generate very big voltage at this time, this may make, and coil damages and possibility will be with second
The device breakdown of control signal connection.And the first sustained diode 1, coil and the first afterflow two are electrically connected at coil both ends
Pole pipe FD1 will form a circuit, discharge the energy stored in coil, so that protection reaches protective relay
Effect.The effect of second freewheeling diode FD2 and third freewheeling diode FD3 played in power switch circuit and the first afterflow
Effect of the diode FD1 played in power switch circuit is similar, and details are not described herein again.
Indicator light circuit 140 shines including the 4th resistance R4, the first Light-emitting diode LED 1, the 16th resistance R16, second
Diode (LED) 2, the 17th resistance R17, third Light-emitting diode LED 3, the 18th resistance R18 and the 4th light emitting diode
LED4.The first end of 4th resistance R4 is electrically connected with the second voltage output end VCC-2 of power-supply circuit 120, the 4th resistance R4's
Second end is electrically connected with the anode of the first Light-emitting diode LED 1, and the cathode of the first Light-emitting diode LED 1 is with radio frequency mould group RF's
Pin P17 (the first indicator light control signal output) electrical connection；The first end of 16th resistance R16 and power-supply circuit 120
Second voltage output end VCC-2 electrical connection, the second end of the 16th resistance R16 and the anode of the second Light-emitting diode LED 2 are electrically connected
It connects, the cathode of the second Light-emitting diode LED 2 and pin P16 (the second indicator light control signal output) electricity of radio frequency mould group RF
Connection；The first end of 17th resistance R17 is electrically connected with the second voltage output end VCC-2 of power-supply circuit 120, the 17th resistance
The second end of R17 is electrically connected with the anode of third Light-emitting diode LED 3, the cathode and radio frequency mould of third Light-emitting diode LED 3
Pin P15 (the third indicator light control signal output) electrical connection of group RF.
Mechanical switching circuit 150 is opened including first switch S1, second switch S2, third switch S3, the 4th switch S4, the 5th
Close S5, the 6th switch S6, the 5th resistance R5, twelfth resistor R12, thirteenth resistor R13, the 14th resistance R14 and the 15th
Resistance R15.The first end of first switch S1 respectively with the pin P04 of radio frequency mould group RF (the first mechanical switch signal input part) with
And the 5th resistance R5 second end electrical connection, the second voltage output end VCC-2 of the first end of the 5th resistance and power-supply circuit 120
Electrical connection, the first end of second switch S2 are electrically connected with the first end of first switch S1, the second end of first switch S1 and second
The second end of switch S2 is grounded GND；The first end of the third switch S3 second end and the tenth with the 14th resistance R14 respectively
The second end of five resistance R15 is electrically connected, and the pin P04 of the first end of the 14th resistance R14 and radio frequency mould group RF (open by the first machinery
OFF signal input terminal) electrical connection, the first end of the 15th resistance R15 respectively (open with the pin P05 of radio frequency mould group RF by the second machinery
OFF signal input terminal) and twelfth resistor R12 second end electrical connection, the first end and power-supply circuit of twelfth resistor R12
120 second voltage output end VCC-2 electrical connection, the first end of the 4th switch S4 are electrically connected with the first end of third switch S3,
Third switch S3 and second end and the second end of the 4th switch S4 are grounded GND；The first end of 5th switch S5 respectively with radio frequency
The second end of the pin P06 (third mechanical switch signal input part) and thirteenth resistor R13 of mould group RF are electrically connected, and the 13rd
The first end of resistance R13 is electrically connected with the second voltage output end VCC-2 of power-supply circuit 120, the first end of the 6th switch S6 with
The first end of 5th switch S5 is electrically connected, and the 5th switch S5 and second end and the second end of the 6th switch S6 are grounded GND.
Wherein, first switch S1 and second switch S2 is in parallel, and setting in this way is another so that when one of switch is breaking
A switch can be spare；Third switch S3 and the 4th switch S4 are in parallel, the 5th switch S5 and the 6th switch S6 parallel connection similarly, herein
It repeats no more.
Illustratively, first switch S1 and second switch S2 by radio frequency mould group RF control the first relay K1 short circuit or
It disconnects, the short circuit or disconnection of third switch S3 and the 4th switch S4 by the second relay K2 of radio frequency mould group RF control, the 5th opens
Close short circuit or disconnection that S5 and the 6th switch S6 controls third relay K3 by radio frequency mould group RF.It is received according to radio frequency mould group RF
To electric switch control signal control the course of work of the first relay K1, the second relay K2 and third relay K3 respectively such as
Under: when first switch S1 (or second switch S2) closure, the first output end drawing to radio frequency mould group RF of mechanical switching circuit 150
When foot P04 inputs a low level, the pin P11 of radio frequency mould group RF can export a high level, and the first triode Q1 is connected, the
The second control signal input low level of one relay K1, the first input end of the first relay K1 and the first relay K1's
Second input terminal is shorted, load 1, zero curve N and firewire L forming circuit, meanwhile, the pin P17 of radio frequency mould group RF can export one
Low level control the first Light-emitting diode LED 1 is bright, and radio frequency mould group RF sends the first relay K1 information being closed to and penetrate
The controlling terminal (such as mobile phone) of frequency mould group communication, so as to the switch conditions of user's timely learning load 1.When first switch S1 (or
Second switch S2) it disconnects, the first output end of mechanical switching circuit 150 inputs one high electricity to the pin P04 of radio frequency mould group RF
Usually, the pin P11 of radio frequency mould group RF can export a low level, and the first triode Q1 ends, and the second of the first relay K1
Control signal voltage is equal with the first control signal voltage, the first input end of the first relay K1 and the first relay K1
The second input terminal disconnect, load 1, zero curve N and firewire L cannot be formed into a loop, meanwhile, the pin P17 of radio frequency mould group RF can be defeated
A high level controls the first Light-emitting diode LED 1 and goes out out, and the information that radio frequency mould group RF disconnects the first relay K1 is sent
To the controlling terminal communicated with radio frequency mould group.Power switch circuit when third switch S3 (or the 4th switch S4) is disconnected and is closed
The course of work and the 5th switch S6 (or the 6th switch S6) disconnect and when closure power switch circuit the course of work with the
One switch S1 (or second switch S2) disconnection is similar with the course of work of power switch circuit when closure, and details are not described herein again.
Illustratively, received according to radio frequency mould group RF wireless switching control signal control respectively the first relay K1,
The course of work of second relay K2 and third relay K3 are as follows: when radio frequency mould group receive Y load open (Y=1,2 or
3) when controlling signal, correspondingly, the pin Py1 (Py1=P11, P10 or P03) of radio frequency mould group RF can export a high level, the
Y triode QY conducting, the second control signal input low level of Y relay KY, the first input end of Y relay KY and
The second input terminal of Y relay KY is shorted, load Y, zero curve N and firewire L forming circuit, meanwhile, correspondingly, radio frequency mould group RF
Pin Py2 (Py2=P17, P16 or P15) to export a low level control Y Light-emitting diode LED Y bright.When radio frequency mould
When group receives Y load disconnection (Y=1,2 or 3) control signal, the pin Py (Py=P11, P10 or P03) of radio frequency mould group RF
A low level can be exported, Y triode QY cut-off, the first control signal voltage of Y relay KY and the second control are defeated
Enter and hold voltage equal, the first input end of Y relay KY and the second input terminal of Y relay KY disconnect, and load Y, zero curve N
It cannot be formed into a loop with firewire L, meanwhile, the pin Py2 of radio frequency mould group RF can export a low level control Y light emitting diode
LEDY goes out.
Optionally, indicator light circuit 140 can also include the 18th resistance R18 and the 4th Light-emitting diode LED 4, the tenth
The first end of eight resistance R18 is electrically connected with the second voltage output end VCC-2 of power-supply circuit 120, and the second of the 18th resistance R18
It holds and is electrically connected with the anode of the 4th Light-emitting diode LED 4, the cathode of the 4th Light-emitting diode LED 4 and the pin of radio frequency mould group RF
P14 (the 4th indicator light control signal output) electrical connection.
Optionally, mechanical switching circuit 150 can also include the 7th switch S7, the first end and radio frequency mould group of the 7th switch
The pin P07 (the 4th mechanical switch signal input part) of RF is electrically connected, and the second end of the 7th switch S7 is grounded GND.
Illustratively, the first relay K1, the second relay K2 and third relay are controlled simultaneously using the 7th switch S7
The course of work of K3 is as follows: when the 7th switch S7 closure, the 4th output end drawing to radio frequency mould group RF of mechanical switching circuit 150
When foot P07 inputs a low level, pin P11, pin P10 and the pin P03 of radio frequency mould group RF can export a high level,
First triode Q1, the second triode Q2 and third transistor Q3 conducting, the second control signal of the first relay K1, the
The second control signal of two relay K2 and the second control signal of third relay K3 input a low level, and first
The second input terminal of the first input end of relay K1 and the first relay K1 is shorted, the first input end of the second relay K2 and
The second of the second input terminal short circuit of second relay K2 and the first input end of third relay K3 and third relay K3
Input terminal is shorted, load 1, zero curve N and firewire L forming circuit, load 2, zero curve N and firewire L forming circuit and load 3, zero
Line N and firewire L forming circuit, meanwhile, the pin P14 of radio frequency mould group RF can export the 4th light emitting diode of low level control
LED4 is bright, and the information that the first relay K1, the second relay K2 and third relay K3 are closed by radio frequency mould group RF is sent
To the controlling terminal communicated with radio frequency mould group RF, so as to the switch conditions of user's timely learning load.When the 7th switch S7 disconnect,
When the output end of mechanical switching circuit 150 inputs a high level to the pin P07 of radio frequency mould group RF, the pin of radio frequency mould group RF
P11, pin P10 and pin P03 can export a low level, the first triode Q1, the second triode Q2 and the three or three pole
Pipe Q3 cut-off, the first control signal voltage and the second control signal voltage of the first relay K1 is equal, the second relay
The the first control signal voltage and the second control signal voltage of K2 is equal and the first control input of third relay K3
Hold voltage and the second control signal voltage equal, the second of the first input end of the first relay K1 and the first relay K1 is defeated
The second input terminal for entering end disconnection, the first input end of the second relay K2 and the second relay K2 disconnects and third relay
The second input terminal of the first input end of K3 and third relay K3 disconnect, load 1, zero curve N and firewire L cannot be formed into a loop,
Load 2, zero curve N and firewire L cannot be formed into a loop and load 3, zero curve N and firewire L and cannot be formed into a loop, meanwhile, radio frequency mould
The pin P14 of group RF, which can export high level and control the 4th Light-emitting diode LED 4, to go out, and radio frequency mould group RF is by the first relay
The information that device K1, the second relay K2 and third relay K3 are disconnected is sent to the controlling terminal with radio frequency mould group RF communication.
Illustratively, the wireless switching control signal received according to radio frequency mould group RF simultaneously the first relay K1 of control,
The course of work of second relay K2 and third relay K3 are as follows: when radio frequency mould group RF receives opening control signal, penetrating
Pin P11, pin P10 and the pin P03 of frequency mould group RF can export a high level, the first triode Q1, the second triode
Q2 and third transistor Q3 conducting, the second control input of the second control signal of the first relay K1, the second relay K2
The second control signal of end and third relay K3 input a low level, the first input end of the first relay K1 and the
The second input terminal of one relay K1 is shorted, the second input terminal of the first input end of the second relay K2 and the second relay K2
Be shorted and third relay K3 first input end and third relay K3 the second input terminal be shorted, load 1, zero curve N and
Firewire L forming circuit, load 2, zero curve N and firewire L forming circuit and load 3, zero curve N and firewire L forming circuit, meanwhile,
It is bright that the pin P14 of radio frequency mould group RF can export the 4th Light-emitting diode LED 4 of low level control.When radio frequency mould group RF is received
When to closing control signal, pin P11, pin P10 and the pin P03 of radio frequency mould group RF can export a low level, and first
Triode Q1, the second triode Q2 and third transistor Q3 cut-off, the first control signal voltage of the first relay K1 and the
Two control signal voltages are equal, the second relay K2 the first control signal voltage and the second control signal voltage are equal
And third relay K3 the first control signal voltage and the second control signal voltage it is equal, the of the first relay K1
The second input terminal of one input terminal and the first relay K1 disconnects, the first input end and the second relay K2 of the second relay K2
The second input terminal disconnect and third relay K3 first input end and third relay K3 the second input terminal disconnect, bear
Carry 1, zero curve N and firewire L and cannot be formed into a loop, load 2, zero curve N and firewire L cannot be formed into a loop and load 3, zero curve N and
Firewire L cannot be formed into a loop, meanwhile, the pin P14 of radio frequency mould group RF can export a high level and control the 4th light emitting diode
LED4 goes out.
It should be noted that the specific implementation of above-mentioned radio circuit 110, indicator light circuit 140, mechanical switching circuit 150
There are many methods, above-mentioned to be only described in detail with regard to typical case, but does not constitute limitations of the present invention.
Fig. 3 is the circuit element diagram of power-supply circuit provided by the embodiment of the utility model.Optionally, power-supply circuit 120 wraps
Include AC-DC conversion circuit 121 and DC-DC conversion circuit 122；The voltage output end of AC-DC conversion circuit 121
It is electric with the voltage input end of the first control signal of relay (Fig. 3 is not shown) and DC-DC conversion circuit 122 respectively
Connection, the voltage output end of DC-DC conversion circuit 122 are electrically connected with the power input of radio circuit 110.
It should be noted that the concrete methods of realizing of AC-DC conversion circuit 121 and DC-DC conversion circuit 122
There are many, only typical case is described in detail below, but do not constitute limitations of the present invention.
Illustratively, with continued reference to Fig. 3, AC-DC conversion circuit 121 includes the 6th resistance R6, the 7th resistance R7, the
Eight resistance R8, the 9th resistance R9, the tenth resistance R10, eleventh resistor R11, third capacitor C3, the 4th capacitor C4, the 5th capacitor
C5, the 6th capacitor C6, first diode D1, the second diode D2, third diode D3, the 4th diode D4, the 5th diode
D5, the 6th diode D6, transformer T and power management chip LNK623DG.The first end of 6th resistance R6 is electrically connected with firewire L
It connects, the second end of the 6th resistance R6 is electrically connected with the anode of the cathode of the second diode D2 and the 5th diode D5 respectively；The
The anode of two diode D2 is electrically connected with the positive of third diode D3, the cathode of third diode D3 respectively with zero curve N and
The anode electrical connection of 4th diode D4, the cathode of the 4th diode D4 are electric with the cathode D5 of the 5th diode and third respectively
Hold the anode electrical connection of C3, the cathode of third capacitor C3 is electrically connected with the anode of third transistor D3；The first of 7th resistance R7
End is electrically connected with the first end of the cathode of the 5th diode D5 and the 4th capacitor C4 respectively, the second end difference of the 7th resistance R7
It is electrically connected with the first end of the second end of the 4th capacitor C4 and the 8th resistance R8, the first end and the 7th resistance of the 4th capacitor C4
The first end of R7 is electrically connected；The second end of 8th resistance R8 is electrically connected with the cathode of the 6th diode D6；Power management chip
Pin S1, pin S2, pin S3 and the pin S4 of LNK623DG is electrically connected with the cathode of third capacitor C3, pin BP and the 5th
The first end of capacitor C5 is electrically connected, and the second end of the 5th capacitor C5 is electrically connected with the cathode of third capacitor C3, pin FP respectively with
The second end of 9th resistance R9 and the electrical connection of the first end of the tenth resistance R10, the pin D anode with the 6th diode D6 respectively
And the second end electrical connection of transformer T main coil；The first end of transformer T main coil and the first end of the 4th capacitor C4 are electrically connected
It connects, the first end of transformer T secondary coil be electrically connected with the anode of first diode D1, the second end of transformer T secondary coil and the
The cathode of six capacitor C6 is electrically connected, and the third end of transformer T secondary coil is electrically connected with the first end of the 9th resistance R9, the 9th resistance
The second end of R9 is electrically connected with the first end of the tenth resistance R10, the 4th end of transformer T secondary coil respectively with the tenth resistance R10
Second end and the 5th capacitor C5 second end electrical connection；The positive cathode with first diode D1 respectively of 6th capacitor C6
And the first end electrical connection of eleventh resistor R11, the cathode of the 6th capacitor C6 and the second end of eleventh resistor R11 connect
Ground.Wherein the first end of eleventh resistor R11 is the voltage output end VCC-1 of AC-DC conversion circuit 121, that is,
The first voltage output end VCC-1 of power-supply circuit 120, for powering for relay.
DC-DC conversion circuit 122 includes the 7th capacitor C7, the 8th capacitor C8, the 9th capacitor C9, the tenth capacitor C10
With low dropout voltage regulator AMS1117-3.3.The pin VIN of low dropout voltage regulator AMS1117-3.3 respectively with eleventh resistor R11
First end (the voltage output end VCC-1 of AC-DC conversion circuit 121), the first end of the 7th capacitor C7 and the 8th electricity
Hold the first end electrical connection of C8, the second end of the 7th capacitor C7 and the second end ground connection of the 8th capacitor C8；Low dropout voltage regulator
The pin gnd of AMS1117-3.3 is grounded GND；The pin PAD of low dropout voltage regulator AMS1117-3.3 respectively with low pressure drop pressure stabilizing
The first end of the pin VOUT of device AMS1117-3.3, the first end of the 9th capacitor C9 and the tenth capacitor C10 are electrically connected, and the 9th
The second end of capacitor C9 and the second end of the tenth capacitor C10 ground connection.Wherein, the pin of low dropout voltage regulator AMS1117-3.3
VOUT is the voltage output end VCC-2 of DC-DC conversion circuit 122, that is, the second voltage output of power-supply circuit 120
End, for powering for radio circuit, mechanical switching circuit and indicator light circuit.
Illustratively, become 8V direct current after AC-DC conversion circuit 121 from the 220V alternating current that firewire exports
Electricity, the 8V direct current that AC-DC conversion circuit 121 exports become 3.3V direct current after DC-DC conversion circuit 122
Electricity.
Note that above are only the preferred embodiment and institute's application technology principle of the utility model.Those skilled in the art's meeting
Understand, the utility model is not limited to specific embodiment described here, is able to carry out for a person skilled in the art various bright
Aobvious variation, readjustment and substitution is without departing from the protection scope of the utility model.Therefore, although passing through above embodiments
The utility model is described in further detail, but the utility model is not limited only to above embodiments, is not departing from
It can also include more other equivalent embodiments in the case that the utility model is conceived, and the scope of the utility model is by appended
Scope of the claims determine.
Claims (10)
1. a kind of power switch circuit characterized by comprising radio circuit, power-supply circuit and at least one relay；
The first input end of the power-supply circuit is electrically connected with firewire, and the second input terminal and the zero curve of the power-supply circuit are electrically connected
It connects, the first control of the power input and the relay of the voltage output end of the power-supply circuit and the radio circuit
End electrical connection, the power-supply circuit are used to the voltage between the firewire and the zero curve being converted to the radio circuit and institute
State the operating voltage of relay；
The relay control signal output end of the radio circuit is electrically connected with the second control terminal of the relay, the radio frequency
Second control of the circuit when receiving switch control signal, by the control signal output of the relay to the relay
End input relay processed controls signal, with control the relay first input end and the relay the second input terminal it is short
It connects or disconnects；
The first input end of the relay is electrically connected with the firewire, the second input terminal of the relay and one end of load
Electrical connection, the other end of the load are electrically connected with the zero curve.
2. power switch circuit according to claim 1, which is characterized in that the radio circuit controls institute by triode
Relay is stated, the base stage of the triode is electrically connected with the relay control signal output end of the radio circuit, three pole
The collector of pipe is electrically connected with the second control terminal of the relay, the emitter ground connection of the triode.
3. power switch circuit according to claim 2, which is characterized in that further include first resistor and second resistance；
The first end of the first resistor is electrically connected with the base stage of the triode, and the second end of the first resistor is penetrated with described
The relay control signal output end of frequency circuit is electrically connected；
The first end of the second resistance is electrically connected with the second end of the first resistor, the second termination of the second resistance
Ground.
4. power switch circuit according to claim 1, which is characterized in that further include relay protection circuit, it is described after
Protective circuit for electric appliance includes 3rd resistor and first capacitor；
The first end of the first capacitor is electrically connected with the second input terminal of the relay, the second end of the first capacitor with
The first end of the 3rd resistor is electrically connected；
The second end of the 3rd resistor is grounded.
5. power switch circuit according to claim 4, which is characterized in that further include freewheeling diode；The afterflow two
The anode of pole pipe is electrically connected with the second control terminal of the relay, and the of the cathode of the freewheeling diode and the relay
The electrical connection of one control terminal.
6. power switch circuit according to claim 1, which is characterized in that it further include mechanical switching circuit, the machinery
The output end of switching circuit is electrically connected with the mechanical switch signal receiving end of the radio circuit, wherein when the mechanical switch
In circuit mechanical switch closure when, the radio circuit control the relay first input end and the second input terminal it is short
It connects, when the mechanical switch in the mechanical switching circuit disconnects, the radio circuit controls the first input of the relay
End and the second input terminal disconnect.
7. power switch circuit according to claim 6, which is characterized in that the mechanical switching circuit includes a machinery
Switch, the first end of the mechanical switch are electrically connected with the mechanical switch signal receiving end of the radio circuit, and the machinery is opened
The second end of pass is grounded, and when the mechanical switch is closed, the radio circuit controls all loaded work pieces by the relay.
8. power switch circuit according to claim 6, which is characterized in that the power switch circuit includes N number of relay
Device, the mechanical switching circuit include N number of output end, and the radio circuit includes N number of mechanical switch signal receiving end and N number of
Relay control signal output end；
N number of output end of the mechanical switching circuit respectively with N number of mechanical switch signal receiving end of the radio circuit one by one
Corresponding electrical connection, N number of relay control signal output end of the radio circuit are controlled with the second of N number of relay respectively
End corresponds electrical connection, described to penetrate when the closure of the mechanical switch corresponding to the m-th output end of the mechanical switching circuit
Frequency circuit controls the first input end of m-th relay and the second input terminal is shorted；
Wherein, N is positive integer, and M is the positive integer less than or equal to N.
9. power switch circuit according to claim 1, which is characterized in that it further include indicator light circuit, the indicator light
The input terminal of circuit is electrically connected with the indicator light control signal output of the radio circuit, wherein when the of the relay
When one input terminal and the second input terminal are shorted, the indicator light is bright, when the first input end and the second input terminal of the relay
When disconnection, described indicator light off.
10. power switch circuit according to claim 1, which is characterized in that the power-supply circuit includes that AC-DC turns
Change circuit and DC-DC conversion circuit；
The voltage output end of the AC-DC conversion circuit respectively with the first control signal of the relay and described
The voltage input end of DC-DC conversion circuit is electrically connected, and the voltage output end of the DC-DC conversion circuit is penetrated with described
The power input of frequency circuit is electrically connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821909155.7U CN209001918U (en) | 2018-11-20 | 2018-11-20 | A kind of power switch circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821909155.7U CN209001918U (en) | 2018-11-20 | 2018-11-20 | A kind of power switch circuit |
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| Publication Number | Publication Date |
|---|---|
| CN209001918U true CN209001918U (en) | 2019-06-18 |
Family
ID=66807835
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821909155.7U Active CN209001918U (en) | 2018-11-20 | 2018-11-20 | A kind of power switch circuit |
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| CN (1) | CN209001918U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110626196A (en) * | 2019-07-22 | 2019-12-31 | 国网浙江省电力有限公司湖州供电公司 | Ubiquitous interconnected lifting type intelligent shore power system |
| CN110682814A (en) * | 2019-08-16 | 2020-01-14 | 国网浙江省电力有限公司湖州供电公司 | Intelligent shore power device controlled by ubiquitous Internet of things |
-
2018
- 2018-11-20 CN CN201821909155.7U patent/CN209001918U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110626196A (en) * | 2019-07-22 | 2019-12-31 | 国网浙江省电力有限公司湖州供电公司 | Ubiquitous interconnected lifting type intelligent shore power system |
| CN110682814A (en) * | 2019-08-16 | 2020-01-14 | 国网浙江省电力有限公司湖州供电公司 | Intelligent shore power device controlled by ubiquitous Internet of things |
| CN110682814B (en) * | 2019-08-16 | 2021-01-05 | 国网浙江省电力有限公司湖州供电公司 | Intelligent shore power device controlled by ubiquitous Internet of things |
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