CN207339238U - Power-down protection circuit for sensing sanitary appliance - Google Patents
Power-down protection circuit for sensing sanitary appliance Download PDFInfo
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- CN207339238U CN207339238U CN201721247091.4U CN201721247091U CN207339238U CN 207339238 U CN207339238 U CN 207339238U CN 201721247091 U CN201721247091 U CN 201721247091U CN 207339238 U CN207339238 U CN 207339238U
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- accumulator
- sanitary appliance
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Abstract
The utility model discloses a kind of power-down protection circuit for sensing sanitary appliance; including bi-stable pulse electromagnetic valve, accumulator, AC power and the master control borad being packaged in sensing sanitary appliance; the bi-stable pulse electromagnetic valve and accumulator are electrically connected with master control borad respectively, and the AC power is electrically connected by accumulator with master control borad；The master control borad includes voltage detecting circuit, drive circuit and controller, the bi-stable pulse electromagnetic valve is electrically connected with the controller by drive circuit, the voltage detecting circuit and accumulator are electrically connected with the controller respectively, and the voltage detecting circuit is in parallel with accumulator.Using the utility model, it can feel the voltage change of voltage detecting circuit, force control drive circuit to carry out pass valve events to bi-stable pulse electromagnetic valve, cost is extremely cheap, significantly increases the market competitiveness of sensing sanitary appliance.
Description
Technical field
It the utility model is related to electronic technology field, more particularly to a kind of power-down protection circuit for sensing sanitary appliance.
Background technology
In sensing sanitary appliance industry, sensing sanitary appliance (e.g., induction tap, sensing urinal, sensing w.c.pan and sensing leaching
Bath) method of supplying power to mainly powered using AC power source adapter, but Alternating Current Power Supply is there are an insurmountable drawback,
If being powered off i.e. in use (in exiting water process), solenoid valve can be caused not close, long-time water outlet, causes very big wave
Take resource.
At present, judge whether sensing sanitary appliance is powered off typically by voltage detecting circuit to carry out.Such as Chinese patent Shen
Please CN201220090423.3, in entitled " voltage detecting circuit of sensing sanitary appliance ", it is single by one to disclose voltage detecting circuit
Piece machine, a PNP triode, a NPN triode, a capacitance and four resistance are formed by connecting, and therefore, which needs
Formed using multiple components, structure is considerably complicated, and production cost is higher, it is impossible to meets daily production requirement.
Therefore, a kind of power-down protection circuit of simple structure and low cost is researched and developed to increase the market competition of sensing sanitary appliance
Power becomes urgent problem to be solved.
Utility model content
The technical problem to be solved by the utility model is to, there is provided it is a kind of it is of simple structure and low cost, safe,
For the power-down protection circuit of sensing sanitary appliance, control drive circuit can be forced to double by the voltage change of voltage detecting circuit
Steady-state pulse solenoid valve carries out pass valve events, significantly increases the market competitiveness of sensing sanitary appliance.
In order to solve the above-mentioned technical problem, the utility model provides a kind of power-down protection circuit for sensing sanitary appliance,
Including bi-stable pulse electromagnetic valve, accumulator, AC power and the master control borad being packaged in sensing sanitary appliance, the bistable state arteries and veins
Rush solenoid valve and accumulator is electrically connected with master control borad respectively, the AC power is electrically connected by accumulator with master control borad；
The master control borad includes voltage detecting circuit, drive circuit and controller, and the bi-stable pulse electromagnetic valve passes through drive circuit
It is electrically connected with the controller, the voltage detecting circuit and accumulator are electrically connected with the controller respectively, the voltage detecting circuit
It is in parallel with accumulator.
As the improvement of such scheme, the voltage detecting circuit includes at least a resistance, the controller and resistance
Connection is with the voltage change of real-time detection resistance.
As the improvement of such scheme, the voltage detecting circuit includes the first resistor and second resistance being serially connected,
The controller accesses the junction of first resistor and second resistance by pin.
As the improvement of such scheme, the accumulator is electrolytic capacitor, the cathode of the electrolytic capacitor respectively with friendship
Galvanic electricity source, voltage detecting circuit and controller are electrically connected, the anode ground connection of the electrolytic capacitor.
As the improvement of such scheme, the electrolytic capacitor is the μ F of 1000 μ F~3300.
As the improvement of such scheme, the AC power include be sequentially connected in series transformer rectifier circuit, filter circuit and
Regulator circuit, the regulator circuit are electrically connected with accumulator.
As the improvement of such scheme, the master control borad further includes infrared transmitter, infrared radiation receiving circuit and refers to
Show circuit, the infrared transmitter, infrared radiation receiving circuit and indicating circuit are electrically connected with the controller respectively.
Implement the beneficial effects of the utility model to be：
The utility model increases voltage detecting circuit in available circuit, and makes voltage detecting circuit and accumulator simultaneously
Connection.When AC power powers off, accumulator output voltage reduces, and controller detects the electricity at voltage detecting circuit both ends in real time
Buckling, forces control drive circuit to carry out pass valve events to bi-stable pulse electromagnetic valve, so as to fulfill the quick of down circuitry
Detection, makes bi-stable pulse electromagnetic valve flexibly close, avoids causing the great wasting of resources.
The resistance that the voltage detecting circuit of the utility model can be serially connected by one or more (is preferably two mutual
The resistance of series connection) form, cost is extremely cheap, simple in structure, easy to connect, significantly increases the market competition of sensing sanitary appliance
Power.
Brief description of the drawings
Fig. 1 is the first embodiment circuit diagram for the power-down protection circuit that the utility model is used for sensing sanitary appliance；
Fig. 2 is the second embodiment circuit diagram for the power-down protection circuit that the utility model is used for sensing sanitary appliance.
Embodiment
It is new to this practicality below in conjunction with attached drawing to make the purpose of this utility model, technical solution and advantage clearer
Type is described in further detail.Only this statement, appearance in the text of the invention or the up, down, left, right, before and after that will appear from,
The orientation such as inside and outside word, only on the basis of the attached drawing of the present invention, it is not that the specific of the present invention is limited.
Referring to Fig. 1, Fig. 1 shows that the utility model is used for the first embodiment circuit of the power-down protection circuit of sensing sanitary appliance
Schematic diagram, it includes being packaged in bi-stable pulse electromagnetic valve 6, accumulator A, AC power M and master control borad in sensing sanitary appliance
N, the bi-stable pulse electromagnetic valve 6 and accumulator A are electrically connected with master control borad N respectively, and the AC power M passes through energy storage electricity
Road A is electrically connected with master control borad N；Specifically, the master control borad N includes voltage detecting circuit B, drive circuit 5 and controller 4, institute
State bi-stable pulse electromagnetic valve 6 to be electrically connected with controller 4 by drive circuit 5, the voltage detecting circuit 8 and accumulator A
It is electrically connected respectively with controller 4, the voltage detecting circuit B is in parallel with accumulator A.Wherein, the controller 4 is by monolithic
The control circuit of machine PIC16F684 compositions, but it is not limited system.
When AC power M is powered off, accumulator A output voltages reduce, and controller 4 detects voltage detecting circuit in real time
The voltage change (voltage reduction) at B both ends, forces control drive circuit 5 to carry out pass valve events to bi-stable pulse electromagnetic valve 6, from
And realize the quick detection of down circuitry, bi-stable pulse electromagnetic valve 6 is flexibly closed, avoid causing the great wasting of resources.
Unlike the prior art, the utility model need to only increase voltage detecting circuit B in available circuit, electricity
The pressure detection circuit B voltage changes that can in real time detect accumulator A output in parallel with accumulator A, simple in structure, connection side
Just.
It should be noted that the voltage detecting circuit 8 includes at least a resistance, the controller 4 is connected with resistance
With the voltage change of real-time detection resistance.In the present embodiment, voltage detecting circuit B include first resistor R1 (first resistor R1 with
Accumulator A is in parallel), it is extremely cheap by the i.e. achievable power down protection cost of a resistance, significantly increase sensing sanitary appliance
The market competitiveness.
Correspondingly, the accumulator A be electrolytic capacitor C, the electrolytic capacitor C cathode respectively with AC power M, electricity
Detection circuit B and controller N is pressed to be electrically connected, the anode ground connection of the electrolytic capacitor C.Electricity can be realized by the electrolytic capacitor C
Source filtering, decoupling, signal coupling and the function such as stopping direct current, the electrolytic capacitor C are preferably the μ F of 1000 μ F~3300, but not with this
For limitation.
The AC power M includes transformer rectifier circuit 1, filter circuit 2 and the regulator circuit 3 being sequentially connected in series, described steady
Volt circuit 3 is electrically connected with accumulator A.It can be that electrolytic capacitor C exports stabling current by AC power M, ensure the peace of power supply
Quan Xing.
Further, the master control borad N further includes infrared transmitter 8, infrared radiation receiving circuit 9 and indicating circuit 7, institute
State infrared transmitter 8, infrared radiation receiving circuit 9 and indicating circuit 7 and be electrically connected (the infrared ray hair with controller 4 respectively
Transmit-receive radio road 8, infrared radiation receiving circuit 9 and indicating circuit 7 are respectively connected in the pin of controller 4).Wherein, the infrared ray hair
Transmit-receive radio road 8, infrared radiation receiving circuit 9 and indicating circuit 7 are available circuit, and e.g., the indicating circuit 7 may include light-emitting diodes
Pipe is to realize indicative function, and infrared transmitter 8 may include NPN type triode, and infrared radiation receiving circuit 9 may include that computing is put
Big device.
Referring to Fig. 2, Fig. 2 shows that the utility model is used for the second embodiment circuit of the power-down protection circuit of sensing sanitary appliance
Schematic diagram, unlike the first embodiment shown in Fig. 1, voltage detecting circuit B described in the present embodiment includes being serially connected
First resistor R1 and second resistance R2, the controller 4 passes through the connection that pin accesses first resistor R1 and second resistance R2
Place.
Effectively coordinating by first resistor R1 and second resistance R2, realizes the reasonable distribution of voltage in the present embodiment,
Meanwhile controller 4 by pin access first resistor R1 and second resistance R2 junction can detection resistance in real time voltage
Change, so as to control drive circuit 5 to carry out pass valve events to bi-stable pulse electromagnetic valve 6.
From the foregoing, it will be observed that the utility model only can form voltage detecting circuit B by resistance, pass through real-time detection resistance two
The voltage change at end, forces control drive circuit 5 to carry out pass valve events to bi-stable pulse electromagnetic valve 6, is protected so as to fulfill power down
Shield, cost is extremely cheap, significantly increases the market competitiveness of sensing sanitary appliance.
The above is the preferred embodiment of the utility model, it is noted that for the ordinary skill of the art
For personnel, various improvements and modifications may be made without departing from the principle of the present invention, these improvements and modifications
It is considered as the scope of protection of the utility model.
Claims (7)
1. a kind of power-down protection circuit for sensing sanitary appliance, it is characterised in that including the bistable state being packaged in sensing sanitary appliance
Impulse electromagnetic valve, accumulator, AC power and master control borad, the bi-stable pulse electromagnetic valve and accumulator respectively with master control
Plate is electrically connected, and the AC power is electrically connected by accumulator with master control borad；
The master control borad includes voltage detecting circuit, drive circuit and controller, and the bi-stable pulse electromagnetic valve passes through driving
Circuit is electrically connected with the controller, and the voltage detecting circuit and accumulator are electrically connected with the controller respectively, the voltage detecting
Circuit is in parallel with accumulator.
2. it is used for the power-down protection circuit of sensing sanitary appliance as claimed in claim 1, it is characterised in that the voltage detecting circuit
Including at least a resistance, the controller is connected with resistance with the voltage change of real-time detection resistance.
3. it is used for the power-down protection circuit of sensing sanitary appliance as claimed in claim 1, it is characterised in that the voltage detecting circuit
Including the first resistor and second resistance being serially connected, the controller accesses the company of first resistor and second resistance by pin
Meet place.
4. it is used for the power-down protection circuit of sensing sanitary appliance as claimed in claim 1, it is characterised in that the accumulator is electricity
Capacitance is solved, the cathode of the electrolytic capacitor is electrically connected with AC power, voltage detecting circuit and controller respectively, the electrolysis electricity
The anode ground connection of appearance.
5. it is used for the power-down protection circuit of sensing sanitary appliance as claimed in claim 4, it is characterised in that the electrolytic capacitor is
The μ F of 1000 μ F~3300.
6. it is used for the power-down protection circuit of sensing sanitary appliance as claimed in claim 1, it is characterised in that the AC power includes
Transformer rectifier circuit, filter circuit and the regulator circuit being sequentially connected in series, the regulator circuit are electrically connected with accumulator.
7. it is used for the power-down protection circuit of sensing sanitary appliance as claimed in claim 1, it is characterised in that the master control borad further includes
Infrared transmitter, infrared radiation receiving circuit and indicating circuit, the infrared transmitter, infrared radiation receiving circuit and refer to
Show that circuit is electrically connected with the controller respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721247091.4U CN207339238U (en) | 2017-09-26 | 2017-09-26 | Power-down protection circuit for sensing sanitary appliance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721247091.4U CN207339238U (en) | 2017-09-26 | 2017-09-26 | Power-down protection circuit for sensing sanitary appliance |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207339238U true CN207339238U (en) | 2018-05-08 |
Family
ID=62370111
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721247091.4U Active CN207339238U (en) | 2017-09-26 | 2017-09-26 | Power-down protection circuit for sensing sanitary appliance |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207339238U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109802362A (en) * | 2019-01-21 | 2019-05-24 | 长沙硕博电子科技股份有限公司 | The intelligent more high side switches backward flowing preventing devices of one kind and method |
-
2017
- 2017-09-26 CN CN201721247091.4U patent/CN207339238U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109802362A (en) * | 2019-01-21 | 2019-05-24 | 长沙硕博电子科技股份有限公司 | The intelligent more high side switches backward flowing preventing devices of one kind and method |
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