CN207504841U - A kind of single fiery intelligent switch - Google Patents
A kind of single fiery intelligent switch Download PDFInfo
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- CN207504841U CN207504841U CN201721493716.5U CN201721493716U CN207504841U CN 207504841 U CN207504841 U CN 207504841U CN 201721493716 U CN201721493716 U CN 201721493716U CN 207504841 U CN207504841 U CN 207504841U
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- modular converter
- isolated form
- form modular
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- capacitance
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Abstract
The utility model is related to electronic switch fields,Espespecially a kind of single fiery intelligent switch,The utility model is equipped with isolated form modular converter U1,The utility model is equipped with isolated form modular converter U1,Electric current is connect by rectifier bridge D with the IN ports of isolated form modular converter U1,The GND ports of isolated form modular converter U1 are connect with the first reference ground,The OUT terminal mouth of isolated form modular converter U1 respectively with OUT output terminals,Second reference ground connects,By the way that the GND ports of isolated form modular converter U1 and GND2 ports are connected different reference grounds respectively,Make in isolated form modular converter U1 the voltage of IN ports and the voltage of OUT terminal mouth electrically completely isolated,Prevent the voltage of the voltage and OUT terminal mouth of IN ports in isolated form modular converter U1 from interfering with each other,It solve thes problems, such as to be easy to cause the danger such as electric leakage electric shock,It is simple in structure,It is and safe and reliable.
Description
Technical field
The utility model is related to electronic switch field, espespecially a kind of single fiery intelligent switch.
Background technology
With the development of science and technology, the application of smart home is more and more extensive, single fire switch as electric intelligent switch be
The ideal chose of intellectualized reconstruction is carried out under conditions of existing family's wiring, can realize remote control, Multi- Switch control etc.
Function.
As shown in fig.3, existing single fiery switching circuit include rectifier bridge D1, the first diode D2, photo-coupler U1,
Voltage transformation module, regulator circuit, first resistor R1 and silicon-controlled TR1, the anode A of silicon-controlled TR1 are connect with firewire, controllably
The cathode K connection zero curves of silicon TR1, the input terminal connection firewire of rectifier bridge D1, the output terminal of rectifier bridge D1 respectively with the first capacitance
One end connection of the anode of C1, the cathode of the first diode D2, photo-coupler U1 primary sides, the cathode ground connection of the first capacitance C1, the
The anode of one diode D2 and the C-terminal mouth of power conversion module connect, and the other end of photo-coupler U1 primary sides connects zero curve respectively
With the cathode of the second diode D3, the anode of the second diode D3 is connected by the IN ports of first resistor R1 and voltage transformation module
It connects.
After current turns ON, rectifier bridge D1 carries out rectification to high voltage alternating current, and the first capacitance C1 is filtered burning voltage,
It is then input to after voltage transformation module is depressured and exports, when switching turn-off current cut-off, rectifier bridge D1 is defeated without high pressure
Enter, need to take electricity from low pressure at this time, voltage is input to by the first diode D2 by starting silicon-controlled TR1 outputs low-voltage
In modular converter, voltage conversion is carried out.
But the voltage transformation module of this single fire switch does not take the operation of any isolation, due to voltage modulus of conversion
The GND ports of block, the cathode of rectifier bridge D1 and subsequent conditioning circuit connect with same common end and generate a high-voltage potential
Difference be easy to cause the danger such as electric leakage electric shock.
Invention content
To solve the above problems, the utility model provides a kind of single fiery intelligent switch, it can solve to be easy to cause to leak electricity and touch
The problem of electricity etc. is dangerous, it is simple in structure and safe and reliable.
To achieve the above object, the technical solution adopted in the utility model is：A kind of single fiery intelligent switch, includes rectification
Bridge D, load L, first resistor R1, the first capacitance C1, isolated form modular converter U1, the first diode D1, low voltage power supply VDD,
Sequentially by first resistor R1, load L connection AC powers, port 3 and the AC power of rectifier bridge D connect for the port 1 of rectifier bridge D
It connects, the port 2 of rectifier bridge D is connect by anode with the first capacitance C1, the IN ends of isolated form modular converter U1, the first capacitance C1
Cathode connect the first reference ground, the port 4 of rectifier bridge D connects the GND of the first reference ground and isolated form modular converter U1 respectively
Port, low voltage power supply VDD pass through the IN ports of the second diode D1 connection isolated form modular converters U1, isolated form modular converter
The OUT terminal mouth connection OUT output terminals of U1, the GND2 ports of isolated form modular converter U1 connect the second reference ground.
Further, the second capacitance C2 and zener diode D2, the anode of the second capacitance C2, voltage stabilizing two have been further included
CIN port of the anode of pole pipe D2 with isolated form modular converter U1 is connect, the cathode of the second capacitance C2, zener diode D2
Cathode is grounded.
Further, the anode connection isolated form modular converter U1 of third capacitance C3, the third capacitance C3 have been further included
OUT terminal, the cathode of third capacitance C3 connects the second reference ground.
The beneficial effects of the utility model are：The utility model is equipped with isolated form modular converter U1, and electric current passes through rectification
Bridge D is connect with the IN ports of isolated form modular converter U1, and the GND ports of isolated form modular converter U1 are connect with the first reference ground,
The OUT terminal mouth of isolated form modular converter U1 is connect respectively with OUT output terminals, the second reference ground, by by isolated form modular converter
The GND ports and GND2 ports of U1 connects different reference grounds respectively, makes the voltage of IN ports in isolated form modular converter U1
With the voltage of OUT terminal mouth electrically completely isolated, the voltage of IN ports and OUT terminal mouth in isolated form modular converter U1 are prevented
Voltage interferes with each other, and solve thes problems, such as to be easy to cause the danger such as electric leakage electric shock, simple in structure and safe and reliable.
Description of the drawings
Fig. 1 is the circuit diagram of the utility model specific embodiment one.
Fig. 2 is the circuit diagram of the utility model specific embodiment two.
Fig. 3 is the circuit diagram of existing single fiery switching circuit.
Specific embodiment
Embodiment one：Refering to Figure 1, the utility model about a kind of single fiery intelligent switch, include rectifier bridge D,
Load L, first resistor R1, the first capacitance C1, isolated form modular converter U1, the first diode D1, low voltage power supply VDD, rectification
Sequentially by first resistor R1, load L connection AC powers, the port 3 of rectifier bridge D is connect with AC power for the port 1 of bridge D,
The port 2 of rectifier bridge D is connect by anode with the first capacitance C1, the IN ends of isolated form modular converter U1, the first capacitance C1's
Cathode connects the first reference ground, and the port 4 of rectifier bridge D connects the GND ends of the first reference ground and isolated form modular converter U1 respectively
Mouthful, low voltage power supply VDD passes through the IN ports of the second diode D2 connection isolated form modular converters U1, isolated form modular converter U1
OUT terminal mouth connection OUT output terminals, the GND2 ports of isolated form modular converter U1 connect the second reference ground.
Further, the second capacitance C2 and zener diode D2, the anode of the second capacitance C2, voltage stabilizing two have been further included
CIN port of the anode of pole pipe D2 with isolated form modular converter U1 is connect, the cathode of the second capacitance C2, zener diode D2
Cathode is grounded, using the above scheme, when voltage is excessive, voltage breakdown zener diode D2, and be passed on the ground, it realizes steady
The effect of pressure, the second capacitance C2 are used to filter low-voltage capacity VDD, reduce and isolated form modular converter U1 is interfered.
Further, the anode connection isolated form modular converter U1 of third capacitance C3, the third capacitance C3 have been further included
OUT terminal, the cathode of third capacitance C3 connects the second reference ground, and using the above scheme, third capacitance C3 is that isolated form is converted
The interference of the OUT terminal mouth of module U1 is used as and filters out object.
Compared with prior art, the utility model is equipped with isolated form modular converter U1, and the utility model turns equipped with isolated form
Block U1 is changed the mold, electric current is connect by rectifier bridge D with the IN ports of isolated form modular converter U1, the GND of isolated form modular converter U1
Port is connect with the first reference ground, and the OUT terminal mouth of isolated form modular converter U1 is connect respectively with OUT output terminals, the second reference ground,
By the way that the GND ports of isolated form modular converter U1 and GND2 ports are connected different reference grounds respectively, convert isolated form
The voltage of the voltage of IN ports and OUT terminal mouth prevents IN in isolated form modular converter U1 electrically completely isolated in module U1
The voltage of port and the voltage of OUT terminal mouth interfere with each other, and solve the problems, such as to be easy to cause the danger such as electric leakage electric shock, structure
Simply, it is and safe and reliable.
The concrete principle of the utility model:Electric current, which flows through load L and passes through first resistor R1, makes electric current less than rectifier bridge D's
Maximum input current, and the IN ports of isolated form modular converter U1 are circulated to, it is flowed out from OUT terminal mouth, isolated form modular converter U1
The connection of IN ports there are one low voltage power supply VDD, low voltage power supply VDD to be output to isolated form through the first diode D1 and convert
The IN ends of module U1, due in circuit operational process, the IN ports of isolated form modular converter U1 and OUT terminal mouth there are voltage difference,
The first reference ground is connected by using by the GND ports of isolated form modular converter U1, GND2 ports connect the second reference ground, solve
Interference in isolated form modular converter U1 between IN ports and OUT terminal mouth, improves the safety of equipment, passes through OUT output terminals
Realize remote control switch.
Embodiment two：It please refers to shown in Fig. 2, includes a low voltage power supply circuit U 3, replaced by low voltage circuit U3
Low voltage power supply VDD, the low voltage power supply circuit U 3 include photo-coupler U2, second resistance R2, third diode D3,
Three resistance R3, controller, silicon-controlled Q, the 4th resistance R4, the port 2 of the anode A connection rectifier bridge D of the silicon-controlled Q, cathode K
The first reference ground is connected, control pole G connects one end of the 4th resistance R4 and the cathode of zener diode D2, the 4th resistance R4 respectively
Port 4 of the other end respectively with the first reference ground, rectifier bridge D connect, the anode of zener diode D2 respectively with the one or two pole
One end connection of the cathode of pipe D1, photo-coupler U2 primary sides, the other ends of photo-coupler U2 primary sides sequentially by second resistance R2,
Third diode D3 is connect with the anode of the first capacitance C1, the IN ports of isolated form modular converter U1, photo-coupler U2 secondary
Input terminal is connect with one end of 3rd resistor R3, and the other end of 3rd resistor R3 is connect with controller, photo-coupler U2 secondary
Output terminal connects the second reference ground, and using the above scheme, the external control switch of circuit is served as by silicon-controlled Q, when silicon-controlled Q breaks
Both end voltage is exported defeated to isolated form modular converter after the second capacitance C2 rectifying and voltage-stabilizings for high pressure by zener diode D2 when opening
The IN ports of U1, electric current is tieed up by second resistance R2, photo-coupler U2 in the anode of zener diode D2 when silicon-controlled Q is connected
A low pressure is held, transmission telecommunications number, guarantee high-pressure side can be isolated between circuit or system with low-pressure end using photo-coupler U2,
Ensure the electrical isolation of these circuits or system to each other simultaneously, play safety guarantee effect, the effect of silicon-controlled Q is used for electric current
Control is more accurate.
In this specific embodiment, load L and first resistor R1 is replaced by using thermistor R5, can be effectively reduced into
This, and sensitivity is good, higher using temperature, the inflow of the bigger characteristic limitation electric current of resistance makes electric current less than rectifier bridge D most
Big input current.
Embodiment of above is only that the preferred embodiment of the utility model is described, not to the utility model
Range be defined, under the premise of the spirit of the design of the utility model is not departed from, this field ordinary skill technical staff to this
The various modifications and improvement that the technical solution of utility model is made should all fall into the guarantor that claims of the utility model determine
In the range of shield.
Claims (3)
1. a kind of single fiery intelligent switch, which is characterized in that include rectifier bridge D, load L, first resistor (R1), the first capacitance
(C1), isolated form modular converter (U1), the first diode (D1), low voltage power supply VDD, rectifier bridge D port 1 sequentially pass through
One resistance (R1), load L connection AC powers, the port 3 of rectifier bridge D are connect with AC power, and the port 2 of rectifier bridge D passes through
It is connect with the anode of the first capacitance (C1), the I N-terminals of isolated form modular converter (U1), the cathode connection first of the first capacitance (C1)
Reference ground, the port 4 of rectifier bridge D connect the GND ports of the first reference ground and isolated form modular converter (U1), low-voltage electricity respectively
Source VDD connects the I N-ports of isolated form modular converter (U1) by the second diode (D1), isolated form modular converter (U1)
OUT terminal mouth connects OUT output terminals, and the GND2 ports of isolated form modular converter (U1) connect the second reference ground.
2. a kind of single fiery intelligent switch according to claim 1, which is characterized in that further included the second capacitance (C2) and surely
Press diode (D2), the anode of second capacitance (C2), the anode of zener diode (D2) with isolated form modular converter
(U1) CI N-ports connection, the cathode of the second capacitance (C2), the cathode of zener diode (D2) are grounded.
3. a kind of single fiery intelligent switch according to claim 1, which is characterized in that further included third capacitance (C3), institute
State the OUT terminal of the anode connection isolated form modular converter (U1) of third capacitance (C3), the cathode connection second of third capacitance (C3)
Reference ground.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721493716.5U CN207504841U (en) | 2017-11-10 | 2017-11-10 | A kind of single fiery intelligent switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721493716.5U CN207504841U (en) | 2017-11-10 | 2017-11-10 | A kind of single fiery intelligent switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207504841U true CN207504841U (en) | 2018-06-15 |
Family
ID=62504439
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721493716.5U Active CN207504841U (en) | 2017-11-10 | 2017-11-10 | A kind of single fiery intelligent switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207504841U (en) |
-
2017
- 2017-11-10 CN CN201721493716.5U patent/CN207504841U/en active Active
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