CN206444456U - A kind of reverse osmosis water purifier water shortage detection circuit - Google Patents
A kind of reverse osmosis water purifier water shortage detection circuit Download PDFInfo
- Publication number
- CN206444456U CN206444456U CN201621321093.9U CN201621321093U CN206444456U CN 206444456 U CN206444456 U CN 206444456U CN 201621321093 U CN201621321093 U CN 201621321093U CN 206444456 U CN206444456 U CN 206444456U
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- China
- Prior art keywords
- booster pump
- detection circuit
- reverse osmosis
- switching tube
- water purifier
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Abstract
The utility model is related to a kind of reverse osmosis water purifier water shortage detection circuit, including booster pump drive circuit, current detection circuit, microcontroller, booster pump, described booster pump is connected with booster pump drive circuit, a switching tube Q1 is serially connected with booster pump drive circuit, switching tube Q1 is connected with switching tube Q2, switching tube Q2 is connected with booster pump, and by microprocessor control；Described current detection circuit is connected with microcontroller and booster pump drive circuit；The beneficial effects of the utility model are：Water or anhydrous state can be quickly detected when water purifier works, be that can continue normal work there is water；When anhydrous, booster pump can be closed in time, reverse osmosis water purifier functional requirement is met；This reverse osmosis water purifier water shortage detection circuit can accurately and reliably detect that reverse osmosis water purifier has water or anhydrous state.
Description
Technical field
The utility model belongs to water purifier technical field, more particularly to a kind of reverse osmosis water purifier water shortage detection circuit.
Background technology
The reverse osmosis water purifier detected with water shortage in the market, it is mostly simply easy that low tension switch is installed, both
Increase cost, also can the easy error detection caused by water pressure fluctuations, the inconvenience that generation is used, this requires new technology upgrading
Requirement is reached using to meet.
The content of the invention
The purpose of this utility model is to overcome the shortcomings of that prior art is present, and provides a kind of reverse osmosis water purifier water shortage
Circuit is detected, this detection circuit is detected by microcontroller, by detecting the variable quantity of electric current, determines whether there is water.
The purpose of this utility model is completed by following technical solution, including the inspection of booster pump drive circuit, electric current
Slowdown monitoring circuit, microcontroller, booster pump, described booster pump are connected with booster pump drive circuit, are concatenated on booster pump drive circuit
There are a switching tube Q1, switching tube Q1 to be connected with switching tube Q2, switching tube Q2 is connected with booster pump, and by microcontroller control
System；Described current detection circuit is connected with microcontroller and booster pump drive circuit.
Preferably, the electric current that described microcontroller is constituted with resistance R1, resistance R8, electric capacity C1, switching diode D2
AD Acquisition Circuit is connected, to gather the operating current of booster pump.
The beneficial effects of the utility model are：Water or anhydrous state can be quickly detected when water purifier works,
It is that can continue normal work to have water；When anhydrous, booster pump can be closed in time, reverse osmosis water purifier functional requirement is met；This is anti-
Infiltration water purifier water shortage detection circuit can accurately and reliably detect that reverse osmosis water purifier has water or anhydrous state.
Brief description of the drawings
Fig. 1 is reverse osmosis water purifier water shortage detection circuit schematic diagram of the present utility model.
Label in accompanying drawing is respectively：1st, booster pump drive circuit；2nd, current detection circuit；3rd, microcontroller；4th, it is pressurized
Pump.
Embodiment
Detailed introduction is done to the utility model below in conjunction with accompanying drawing：As shown in Figure 1, the utility model includes supercharging
Pump drive circuit 1, current detection circuit 2, microcontroller 3, booster pump 4, described booster pump 4 and the phase of booster pump drive circuit 1
Even, a switching tube Q1 is serially connected with booster pump drive circuit 1, switching tube Q1 is connected with switching tube Q2, switching tube Q2 is with increasing
Press pump 4 is connected, and is controlled by microcontroller 3, realizes the function of starting and close booster pump；Described current detection circuit 2 with
Microcontroller 3 and booster pump drive circuit 1 are connected, and detect the operating current of booster pump 4, and the control for receiving microcontroller 3 refers to
Information conversion is made to go to drive the control of big commutating circuit.
The electric current AD collections of described microcontroller 3 and resistance R1, resistance R8, electric capacity C1, switching diode D2 compositions are electric
Road is connected, and to gather the operating current of booster pump, so there is the feedback information of electric current, it is possible to detect the work journey of booster pump 4
Situation, if having water or anhydrous condition, at this moment microcontroller 3 can just be collected into information in real time, analyze the work of booster pump 4
Make current fluctuation and operating current order of magnitude, resistance high current is big when having water, resistance low current is small when anhydrous judges to be
It is no to have water, or the Stop message of booster pump 4 is sent during water shortage.
As booster pump drive circuit 1 described in the utility model, main function control booster pump 4 works, through switching tube Q1
Switch control is carried out, microcontroller 3 is conveyed to the control signal come, control output voltage passes through switching tube Q2 to switching tube Q2
Control booster pump 4 works.
As current detection circuit 2 described in the utility model, main function is that the operating current of booster pump 4 is examined
Survey, whether detection reverse osmosis water purifier water shortage or has water, so as to control booster pump 4 to work.
As new microcontroller 3 this practicality described, mainly act on and instruction control is carried out to whole circuit, to booster pump
Drive circuit 1 is instructed, and control booster pump 4 works, and gathers the operating current of booster pump 4, analyzes current fluctuation situation, and electric current
The size of absolute value, it was demonstrated that the working condition of booster pump 4, if water shortage has water, need to export Stop message during water shortage immediately.
The utility model is not limited to above-mentioned embodiment, and any change is made no matter being constituted in its shape or material, all
It is to use structure design provided by the utility model, is all a kind of deformation of the present utility model, is considered as new in this practicality
Within type protection domain.
Claims (2)
1. a kind of reverse osmosis water purifier water shortage detection circuit, including booster pump drive circuit (1), current detection circuit (2), micro-control
Device (3) processed, booster pump (4), it is characterised in that：Described booster pump (4) is connected with booster pump drive circuit (1), and booster pump drives
A switching tube Q1 is serially connected with dynamic circuit (1), switching tube Q1 is connected with switching tube Q2, switching tube Q2 and booster pump (4) phase
Even, and by microcontroller (3) control；Described current detection circuit (2) and microcontroller (3) and booster pump drive circuit (1)
Connection.
2. reverse osmosis water purifier water shortage detection circuit according to claim 1, it is characterised in that：Described microcontroller
(3) the electric current AD Acquisition Circuit with resistance R1, resistance R8, electric capacity C1, switching diode D2 compositions is connected, to gather booster pump
Operating current.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621321093.9U CN206444456U (en) | 2016-12-02 | 2016-12-02 | A kind of reverse osmosis water purifier water shortage detection circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621321093.9U CN206444456U (en) | 2016-12-02 | 2016-12-02 | A kind of reverse osmosis water purifier water shortage detection circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206444456U true CN206444456U (en) | 2017-08-29 |
Family
ID=59662774
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621321093.9U Active CN206444456U (en) | 2016-12-02 | 2016-12-02 | A kind of reverse osmosis water purifier water shortage detection circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206444456U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108646112A (en) * | 2018-05-17 | 2018-10-12 | 湖南汉拓物联科技有限公司 | A kind of monitoring device and monitoring system of purifier |
| CN110342612A (en) * | 2019-08-22 | 2019-10-18 | 广东叮咚净水科技有限公司 | The water shortage detection device of water purifier |
-
2016
- 2016-12-02 CN CN201621321093.9U patent/CN206444456U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108646112A (en) * | 2018-05-17 | 2018-10-12 | 湖南汉拓物联科技有限公司 | A kind of monitoring device and monitoring system of purifier |
| CN110342612A (en) * | 2019-08-22 | 2019-10-18 | 广东叮咚净水科技有限公司 | The water shortage detection device of water purifier |
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