CN207113247U - Wireless water flow sensing unit circuit - Google Patents
Wireless water flow sensing unit circuit Download PDFInfo
- Publication number
- CN207113247U CN207113247U CN201720107780.9U CN201720107780U CN207113247U CN 207113247 U CN207113247 U CN 207113247U CN 201720107780 U CN201720107780 U CN 201720107780U CN 207113247 U CN207113247 U CN 207113247U
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- Prior art keywords
- sensing unit
- wireless
- module
- water flow
- flow sensing
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 60
- 238000007493 shaping process Methods 0.000 claims abstract description 44
- 230000003321 amplification Effects 0.000 claims abstract description 41
- 238000003199 nucleic acid amplification method Methods 0.000 claims abstract description 41
- 238000004891 communication Methods 0.000 claims description 11
- 230000005611 electricity Effects 0.000 claims description 6
- 238000001514 detection method Methods 0.000 claims description 3
- 238000001914 filtration Methods 0.000 claims description 3
- 230000005514 two-phase flow Effects 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 claims 1
- 238000005516 engineering process Methods 0.000 abstract description 5
- 239000007795 chemical reaction product Substances 0.000 abstract description 3
- 238000009434 installation Methods 0.000 abstract description 3
- 238000010586 diagram Methods 0.000 description 8
- 239000000047 product Substances 0.000 description 4
- 210000001367 artery Anatomy 0.000 description 1
- 230000005059 dormancy Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007257 malfunction Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
- 230000009885 systemic effect Effects 0.000 description 1
- 210000003462 vein Anatomy 0.000 description 1
Abstract
The utility model discloses a kind of wireless water flow sensing unit circuit, is related to security protection technology field, and the wireless water flow sensing unit circuit includes：Water flow sensing unit, shaping pulse amplification module, pulse amplifying drive module, controller, wireless module and battery.The utility model externally launches current synchronization pulse by wireless module, on the premise of not changing any part of electric heater outward appearance and allocating, by supporting controller (such as：Wireless socket) the water outlet power down function expanded function of electric heater can be achieved, this is supported the use realizes low-end product high-endization and convenient installation and safety utilization of electric power immediately.
Description
Technical field
Security protection technology field is the utility model is related to, more particularly to a kind of wireless water flow sensing unit circuit.
Background technology
Electric heater refers to the water heater heated using electricity as the energy.It is and gas heater, solar water heater
One of three big water heaters mutually arranged side by side, electric heater pass through the development in more than ten years, and the technology of water heater is constantly progressive, also increasingly
Favored by consumer.
In order to improve the security performance of electric heater, occurs water outlet power down function in the prior art, i.e., in electric heater
When water outlet, electric heater power supply is automatically cut off, the function is when realizing, it is necessary to detect electric hot water using water flow sensing unit
Device whether water outlet, existing water flow sensing unit is because directly coordinating electric equipment products to use, and power supply directly uses complete machine power supply, such as：
Electric heater, water-flow signal power supply use electric water heater system power supply, and current output signal is by being typically wire connected to electric heater
System control panel, this kind connection control mode maximum the shortcomings that be：Product will be unable to carry out outward appearance upgrading to product once shaping
And function upgrading, this kind configuration cause product line single, it is high to be lacked in the market low side by outward appearance and function effect for personalized
The flexible apolegamy demand matched somebody with somebody.
Utility model content
To solve above-mentioned all or part of technical problem, the utility model provides a kind of wireless water flow sensing unit electricity
Road, the wireless water flow sensing unit circuit include：Water flow sensing unit, shaping pulse amplification module, pulse amplifying drive module, control
Device, wireless module and battery processed；
The battery, for being powered for miscellaneous part；
The water flow sensing unit, for carrying out state-detection to electric heater, water state is in out in the electric heater
When, water-flow signal is produced, and the water-flow signal is sent to the shaping pulse amplification module；
The shaping pulse amplification module, for carrying out shaping amplification to the water-flow signal；
The pulse amplifying drive module, is amplified again for the water-flow signal after amplifying to shaping, will be put again
Water-flow signal after big is sent to the controller；
The controller, for when receiving water-flow signal, communication signal to be sent to the wireless module；
The wireless module, for when receiving communication signal, externally launching current synchronization pulse.
Preferably, capacitance is provided between the water flow sensing unit and the shaping pulse amplification module.
Preferably, the both ends of the shaping pulse amplification module are parallel with feedback conduction module；
The feedback conduction module, for making the shaping pulse amplification module accelerate conducting.
Preferably, feedback is provided between the output end of the pulse amplifying drive module and the shaping pulse amplification module
End module；
The feedback cut-off module, for making the shaping pulse amplification module accelerate cut-off.
Preferably, it is provided with the first anti-jamming circuit between the negative pole of the shaping pulse amplification module and battery；
First anti-jamming circuit, for filtering out the noise signal of the water flow sensing unit output.
Preferably, it is provided with the second anti-jamming circuit between the positive pole of the shaping pulse amplification module and battery；
Second anti-jamming circuit, for the crest voltage clamper of noise signal that exports the water flow sensing unit pre-
If in voltage range.
Preferably, the controller, when being additionally operable to be not detected by water-flow signal in preset time threshold, into dormancy mould
Formula.
Preferably, the wireless water flow sensing unit circuit also includes：The status indicator lamp being connected with the controller；
The controller, it is additionally operable to detect the voltage of the positive pole of the battery, is less than predeterminated voltage in the voltage detected
When, low-voltage warning signal is sent to the status indicator lamp, so that the status indicator lamp realizes low-voltage warning.
Preferably, the wireless module realizes that unidirectional or two-phase passes using less radio-frequency RF, bluetooth or radio communication WIFI
It is defeated.
Preferably, the water flow sensing unit is Hall sensor.
The utility model externally launches current synchronization pulse by wireless module, appoints not changing electric heater outward appearance
What part and on the premise of allocating, by supporting controller (such as：Wireless socket) i.e. can be achieved electric heater water outlet power-off work(
Energy expanded function, this is supported the use realizes low-end product high-endization and convenient installation and safety utilization of electric power immediately.
Brief description of the drawings
Fig. 1 is a kind of circuit block diagram of the wireless water flow sensing unit circuit of embodiment of the utility model；
Fig. 2 is a kind of circuit theory diagrams of the wireless water flow sensing unit circuit of embodiment of the utility model.
Embodiment
With reference to the accompanying drawings and examples, specific embodiment of the present utility model is described in further detail.Below
Embodiment is used to illustrate the utility model, but is not limited to the scope of the utility model.
Fig. 1 is a kind of circuit block diagram of the wireless water flow sensing unit circuit of embodiment of the utility model；Reference picture 1, institute
Stating wireless water flow sensing unit circuit includes：Water flow sensing unit (certainly, the water flow sensing unit of the present embodiment uses Hall sensor,
Certainly, other sensors can be also used, such as：Ultrasonic sensor etc.), shaping pulse the amplification module (" arteries and veins i.e. in corresponding diagram
Rush shaping amplification "), pulse amplifying drive module (" pulse amplifying driving " i.e. in corresponding diagram), controller is (i.e. in corresponding diagram
" MCU "), wireless module and battery (" VCC " in figure is the positive pole of the battery, and " GND " is the negative pole of the battery)；
The battery, for being powered for miscellaneous part；
The water flow sensing unit, for carrying out state-detection to electric heater, water state is in out in the electric heater
When, water-flow signal is produced, and the water-flow signal is sent to the shaping pulse amplification module；
The shaping pulse amplification module, for carrying out shaping amplification to the water-flow signal；
The pulse amplifying drive module, is amplified again for the water-flow signal after amplifying to shaping, will be put again
Water-flow signal after big is sent to the controller；
The controller, for when receiving water-flow signal, communication signal to be sent to the wireless module；
The wireless module, for when receiving communication signal, externally launching current synchronization pulse.
In the specific implementation, the wireless module realizes list using less radio-frequency (RF), bluetooth or radio communication (WIFI)
To or two-phase flow.
The present embodiment externally launches current synchronization pulse by wireless module, and not changing, electric heater outward appearance is any
Part and on the premise of allocating, by supporting controller (such as：Wireless socket) i.e. can be achieved electric heater water outlet power down function
Expanded function, this is supported the use realizes low-end product high-endization and convenient installation and safety utilization of electric power immediately.
To avoid the interference caused by direct current signal, in the present embodiment, the water flow sensing unit and the shaping pulse are put
Capacitance is provided between big module.
To improve the conducting speed of the shaping pulse amplification module, so as to improve the sound of the shaping pulse amplification module
Answer speed, in the present embodiment, the both ends of the shaping pulse amplification module are parallel with feedback conduction module；
The feedback conduction module, for making the shaping pulse amplification module accelerate conducting.
To improve the cut-off speed of the shaping pulse amplification module, so as to further improve the shaping pulse amplification mould
The response speed of block, feedback is provided between the output end of the pulse amplifying drive module and the shaping pulse amplification module and is cut
Only module；
The feedback cut-off module, for making the shaping pulse amplification module accelerate cut-off.
In the specific implementation, being provided with the first anti-jamming circuit between the shaping pulse amplification module and the negative pole GND of battery
(i.e. in corresponding diagram " anti-jamming circuit 1 ")；
First anti-jamming circuit, for filtering out the noise signal of the water flow sensing unit output.
In the specific implementation, being provided with the second anti-jamming circuit between the shaping pulse amplification module and the positive pole VCC of battery
(i.e. in corresponding diagram " anti-jamming circuit 2 ")；
Second anti-jamming circuit, for the crest voltage clamper of noise signal that exports the water flow sensing unit pre-
If in voltage range.
In the specific implementation, the controller, when being additionally operable to be not detected by water-flow signal in preset time threshold, enters
Park mode, to reduce machine system power consumption, play extension battery.
In the specific implementation, the wireless water flow sensing unit circuit also includes：The state instruction being connected with the controller
Lamp；
The controller, it is additionally operable to detect the positive pole VCC of battery voltage, in the voltage detected less than default electricity
During pressure, low-voltage warning signal is sent to the status indicator lamp, so that the status indicator lamp realizes low-voltage warning.
Reference picture 2, the capacitance are electric capacity C2, and first anti-jamming circuit is electric capacity C9, and wherein C9 is attempted by
D6 both ends filter out the noise jamming of water flow sensing unit output, and second anti-jamming circuit is diode D2, wherein, D2 is attempted by
Between Q1 transistor bases and VCC, make the crest voltage clamper of input noise signal in VCC voltage reference terminals, the pulse
Shaping amplification module is made up of triode Q1, Q3, resistance R1, R2 and diode D3, wherein, Q1, Q3 composition same-phase incoming wave
Shape is amplified, and the feedback conduction module is resistance R3, to accelerate Q1, Q2 conducting amplifying powers, the pulse amplifying drive module
It is made up of triode Q5, Q2, resistance R10, R12, R9 and R4, wherein, Q2, Q5 composition same-phase input Q3 waveform amplification, institute
State feedback cut-off module to be made up of resistance R11, diode D1, triode Q4, resistance R13 and electric capacity C8, wherein C8, R13 composition
It is default (such as to adjust output pulse width：2mS), Q4 causes Q5 outputs to accelerate cut-off, and the status indicator lamp is LED1, its
In, LED1 connection MCU_F output pins, it can be reminded with indicating operating status, malfunction, communication state and warning.
In the present embodiment, MCU_G pin series resistors are connected to VCC ends, and MCU enters according to agreement procedure to the voltage of the positive pole of battery
Row sampling, if be less than systemic presupposition parameter, LED1 output low-voltage warning instructions.
In the present embodiment, be provided with power supply indicator between MCU and GND, the power supply indicator can be used for power supply instruction,
Working condition indicates and police instruction.
In the present embodiment, the battery can facilitate dismounting and change, and battery is using 1 section and powers above, can be in parallel
Or series connection and single-unit use.
The operation principle of the wireless water flow sensing unit circuit of the present embodiment is：In a dormant state, current sense the MCU
When device detects water-flow signal, stream impulse output turns on Q1, Q3 through C2, and feedback resistance R3 makes Q1, Q3 accelerate to turn on, and Q3 is defeated
Go out pulse signal to export from Q5 after Q2, Q5 amplification again, signal is connected to MCU_A pin through R4 all the way, and signal is through feedback all the way
Cut-off circuit R11, D1 and Q4, because of Q4 conducting, Q1 is caused unconditionally to accelerate to end.Wherein C8, R13 adjust the height of MCU_A pin
Level pulse widths, park mode is will move out after MCU persistently receives water-flow signal and enters working condition, and from MCU_B~E pin
Outputting communication signal starts wireless module simultaneously and externally launches current synchronization pulse.
When MCU_A pin are persistently not detected by water-flow signal according to MCU programs agreement, MUC will enter park mode, to
Machine system power consumption is reduced, plays extension battery.
In working condition, MCU_G pin according to program agreement VCC is detected, when detect VCC voltages less than system it is pre-
If during voltage, MCU will light signal driving LED1 from MCU_F pin output characteristics.
Embodiment of above is merely to illustrate the utility model, and is not limitation of the utility model, relevant technology neck
The those of ordinary skill in domain, in the case where not departing from spirit and scope of the present utility model, can also make a variety of changes and
Modification, therefore all equivalent technical schemes fall within category of the present utility model, scope of patent protection of the present utility model should
It is defined by the claims.
Claims (10)
1. a kind of wireless water flow sensing unit circuit, it is characterised in that the wireless water flow sensing unit circuit includes：Current sense
Device, shaping pulse amplification module, pulse amplifying drive module, controller, wireless module and battery；
The battery, for being powered for miscellaneous part；
The water flow sensing unit, for carrying out state-detection to electric heater, when the electric heater is in out water state, production
Raw water-flow signal, and the water-flow signal is sent to the shaping pulse amplification module；
The shaping pulse amplification module, for carrying out shaping amplification to the water-flow signal；
The pulse amplifying drive module, is amplified again for the water-flow signal after amplifying to shaping, after amplifying again
Water-flow signal send to the controller；
The controller, for when receiving water-flow signal, communication signal to be sent to the wireless module；
The wireless module, for when receiving communication signal, externally launching current synchronization pulse.
2. wireless water flow sensing unit circuit as claimed in claim 1, it is characterised in that the water flow sensing unit and the pulse
Capacitance is provided between shaping amplification module.
3. wireless water flow sensing unit circuit as claimed in claim 2, it is characterised in that the two of the shaping pulse amplification module
End is parallel with feedback conduction module；
The feedback conduction module, for making the shaping pulse amplification module accelerate conducting.
4. water flow sensing unit circuit as claimed in claim 2 wireless, it is characterised in that the pulse amplifying drive module it is defeated
Go out between end and the shaping pulse amplification module to be provided with feedback cut-off module；
The feedback cut-off module, for making the shaping pulse amplification module accelerate cut-off.
5. wireless water flow sensing unit circuit as claimed in claim 2, it is characterised in that the shaping pulse amplification module and electricity
The first anti-jamming circuit is provided between the negative pole in pond；
First anti-jamming circuit, for filtering out the noise signal of the water flow sensing unit output.
6. wireless water flow sensing unit circuit as claimed in claim 5, it is characterised in that the shaping pulse amplification module and electricity
The second anti-jamming circuit is provided between the positive pole in pond；
Second anti-jamming circuit, the crest voltage clamper of the noise signal for the water flow sensing unit to be exported are presetting electricity
In the range of pressure.
7. such as wireless water flow sensing unit circuit according to any one of claims 1 to 6, it is characterised in that the controller, also
During for being not detected by water-flow signal in preset time threshold, into park mode.
8. such as wireless water flow sensing unit circuit according to any one of claims 1 to 6, it is characterised in that the wireless current
Sensor circuit also includes：The status indicator lamp being connected with the controller；
The controller, it is additionally operable to detect the voltage of the positive pole of the battery, when the voltage detected is less than predeterminated voltage, to
The status indicator lamp sends low-voltage warning signal, so that the status indicator lamp realizes low-voltage warning.
9. such as wireless water flow sensing unit circuit according to any one of claims 1 to 6, it is characterised in that the wireless module
Unidirectional or two-phase flow is realized using less radio-frequency RF, bluetooth or radio communication WIFI.
10. such as wireless water flow sensing unit circuit according to any one of claims 1 to 6, it is characterised in that the current sensing
Device is Hall sensor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720107780.9U CN207113247U (en) | 2017-02-04 | 2017-02-04 | Wireless water flow sensing unit circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720107780.9U CN207113247U (en) | 2017-02-04 | 2017-02-04 | Wireless water flow sensing unit circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207113247U true CN207113247U (en) | 2018-03-16 |
Family
ID=61594970
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720107780.9U Expired - Fee Related CN207113247U (en) | 2017-02-04 | 2017-02-04 | Wireless water flow sensing unit circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207113247U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106766226A (en) * | 2017-02-04 | 2017-05-31 | 余姚市嘉荣电子电器有限公司 | Wireless water flow sensing unit circuit |
-
2017
- 2017-02-04 CN CN201720107780.9U patent/CN207113247U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106766226A (en) * | 2017-02-04 | 2017-05-31 | 余姚市嘉荣电子电器有限公司 | Wireless water flow sensing unit circuit |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180316 |
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| CF01 | Termination of patent right due to non-payment of annual fee |