CN209027736U - A kind of water purifier - Google Patents
A kind of water purifier Download PDFInfo
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- CN209027736U CN209027736U CN201821564168.5U CN201821564168U CN209027736U CN 209027736 U CN209027736 U CN 209027736U CN 201821564168 U CN201821564168 U CN 201821564168U CN 209027736 U CN209027736 U CN 209027736U
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Abstract
The utility model relates to a kind of water purifiers, including shell, the intracorporal filter device of shell is arranged in and is connected respectively with the filter device water inlet pipe, outlet pipe, it further include being arranged in the intracorporal leakage inspector of shell, leakage inspector includes that there are two the water quality sensors of electrode catheter for tool, tool is there are two the detecting electrode of electrode catheter, the control circuit board being electrically connected respectively with water quality sensor, detecting electrode electricity.Water quality sensor is arranged in water route, and an electrode catheter of water quality sensor is electrically connected with an input terminal of control circuit board, another electrode catheter ground connection of water quality sensor.Detecting electrode is arranged in leak water detdction position, and an electrode catheter of detecting electrode is electrically connected with another input terminal of control circuit board, another electrode catheter ground connection of detecting electrode.The water purifier can effectively distinguish condensed water and water leakage situation, and then avoid condensed water false alarm, and leak water detdction is accurate, uses hommization.
Description
Technical field
The utility model relates to a kind of water purifiers.
Background technique
Leakage inspector is usually mounted in existing water purifier with the water leakage situation for detecting water purifier.Such as authorization
Notification number is the Chinese utility model patent " a kind of water purifier " of CN206613254U (application No. is CN201720150264.4),
Water purifier disclosed in it includes shell and the leak water detdction component for being set to the housing bottom, the leak water detdction component packet
The first electrode and second electrode for including detection plate and being arranged at intervals in the detection plate, the first electrode and second electrode
On be provided with electrode bar.When leak does not exist together outside stream from Housing Base, it is evenly distributed on first electrode 21 and the second electricity
Electrode bar 23 on pole 22 can detect leak, and then carry out water leakage alarm.The leakage inspector passes through two electrodes
Conducting detects leak, but in use process, also there is the case where will appear condensed water, and often the appearance of condensed water is simultaneously
Non- is not require to do water leakage alarm work in such cases caused by the sealing or failure problems of water purifier.However it if adopts
It with leakage inspector above-mentioned, then also will do it water leakage alarm in the case where there is condensed water, then can often condense
The false alarm situation of water, and then user is guided to repair water purifier, frequent water purifier of dismantling is unfavorable for water purifier certainly
The leakproofness of body is kept and service life, while maintenance cost is high.
Utility model content
Technical problem to be solved in the utility model be for the above-mentioned prior art provide one kind can effectively distinguish it is cold
Condensate and water leakage situation, and then avoid the water purifier of condensed water false alarm.
Technical solution adopted by the utility model to solve the above technical problems is as follows: a kind of water purifier, including shell, setting
Water inlet pipe, the outlet pipe being connected in the intracorporal filter device of shell and respectively with the filter device, it is characterised in that: also wrap
It includes and is arranged in the intracorporal leakage inspector of shell, the leakage inspector includes
Water quality sensor is arranged in water route；
Detecting electrode, including two electrode catheters, are arranged in the leak water detdction position in water purifier；
Control circuit board is electrically connected with water quality sensor, detecting electrode electricity respectively, for closing detection electricity to water quality sensor
The detection signal of pole is compared and exports leak water detdction signal.
Simply, the control circuit board include the first measure loop, the second measure loop and controller, described first
The input terminal of measure loop is electrically connected with the electrode catheter of water quality sensor, the input terminal of the second measure loop and detecting electrode
Electrode catheter electrical connection, first measure loop, the second measure loop output end be electrically connected with the controller respectively.
In order to facilitate carry out leak prompt, the control circuit board further include the display lamp being electrically connected with the controller and/or
Buzzer.
Preferably, first measure loop includes first resistor and second resistance, and the first end of first resistor connects electricity
Source, the second end of first resistor are electrically connected with the electrode catheter of water quality sensor, the first end of the second resistance and the first electricity
The second end of resistance is electrically connected, and the second end of the second resistance is electrically connected with a signal input part of controller；
Second measure loop includes 3rd resistor and the 4th resistance, and the resistance value of the 3rd resistor is greater than or equal to the
The resistance value of one resistance, the resistance value of the 4th resistance are equal to the resistance value of second resistance, and the first end of 3rd resistor connects power supply, third electricity
The second end of resistance is electrically connected with the electrode catheter of water quality sensor, the first end of the 4th resistance and the second end of 3rd resistor
Electrical connection, the second end of the 4th resistance are electrically connected with another signal input part of controller.
Preferably, the detecting electrode is provided at least two, and each detecting electrode is electrically connected with control circuit board respectively.
Preferably, the water quality sensor is TDS sensor.
Preferably, the leak water detdction position of the housing bottom is arranged in the detecting electrode.
Easily, the set key being electrically connected with control circuit board is additionally provided on the shell.
Compared with the prior art, the advantages of the utility model are: the water purifier is using water quality sensor as with reference to electricity
Pole detects signal when two probes in the water quality sensor are connected in water in water route, while detecting electrode is arranged in leaking area,
So in the case where two electrode catheters of detecting electrode are condensed the water conducting in the pipeline of water or leakage, the letter of output
Number to also different, then the detection signal that can will test electrode is compared calculating, calculated result with the signal of water quality sensor
There is the case where leak in the case where condensation flow to leaking area can effectively be distinguished or water purifier internal components, can
Accurately judge whether it is water leakage situation, the false alarm of so avoidable condensed water, the frequent alarm accidentally revealed reduce maintenance
Work, use are more humanized.
Detailed description of the invention
Fig. 1 is the circuit diagram of leakage inspector in the utility model embodiment.
Specific embodiment
The utility model is described in further detail below in conjunction with figure embodiment.
As shown in Figure 1, the water purifier in the present embodiment, including shell, it is mounted on the intracorporal filter device of shell, was connected to
Water inlet pipe, the outlet pipe on device are filtered, is arranged in the intracorporal leakage inspector of shell.Filter device can use existing filtering
Device, the filter device that can be such as connected in sequence using PP cotton filter element, active carbon filter core, ultra-filtration element, active carbon filter core,
Water inlet pipe is connected to the arrival end of PP cotton filter element, and water inlet pipe can be used for connecting water source.Outlet pipe is then connected to active carbon filtration
The outlet end of core, outlet pipe are used to provide the water resource of purification for user.
Leakage inspector in the present embodiment includes water quality sensor 1, detecting electrode 2, control circuit board 3.Water quality passes
Sensor 1, detecting electrode 2 include that there are two electrode catheters.
Water quality sensor 1 is arranged in the outlet pipe of water purifier in the present embodiment, for detecting the effluent quality of water purifier.
Water quality sensor in the present embodiment uses TDS sensor, which is used to detect the conductance passband of water.Water quality sensing
Two electrode catheters of device 1 remain the state of connection in the use process of water purifier, are located between two electrode catheters
Water then will form certain equivalent resistance, since the difference of different regions water quality and the service life of filter device are different, two
The equivalent resistance that water between electrode catheter is constituted can also be fluctuated with variation, be remembered between two electrode catheters in the present embodiment
The equivalent resistance that water is constituted is Rw。
Detecting electrode 2 is arranged in leak water detdction position, and usual leak water detdction position is located at the bottom of water purifier, that is, will test
Two electrode catheters of electrode 2 are arranged on the leak water detdction position of water purifier bottom.The quantity of detecting electrode 2 is examined according to leak
The quantity that location is set determines that a detecting electrode 2 is arranged in that is, each leak water detdction position.Detecting electrode 2 also can be set quick
At the leakage point of sense.Water purifier may generate condensed water at work, when condensed water falls in water purifier bottom, water purifier
Not the case where internal device does not occur leakage, in such cases without carrying out water leakage alarm.Only inside water purifier
Device sealing is not tight or occurs damaging and occurring just to need to carry out water leakage alarm in the case where leak, and then user is reminded to carry out
Maintenance avoids the occurrence of bigger damage or even causes safety problem.
Control circuit board 3 is electrically connected with water quality sensor 1,2 electricity of detecting electrode respectively, for water quality sensor 1 and inspection
The detection signal for surveying electrode 2 is compared calculating, and then detects signal accordingly.The control circuit board 3 detects back including first
Road 31, the second measure loop 32, controller 33 and warning device, wherein controller 33 can use a single-chip microcontroller.
The input terminal of first measure loop 31 is electrically connected with an electrode catheter of water quality sensor 1, another electricity of water quality sensor 1
Pole probe ground connection.The input terminal of second measure loop 32 is electrically connected with the electrode catheter of detecting electrode 2, detecting electrode 2 it is another
A electrode catheter ground connection.First measure loop 31, the second measure loop 32 output end be electrically connected respectively with controller 33.Alarm
Device can use display lamp 4 and/or buzzer 5, and warning device is connected electrically in 33 output end of controller.The power supply of controller 33
Connecting pin one end connects power supply, other end ground connection.
Specifically, the first measure loop 31 includes first resistor R1 and second resistance R2, and the first end of first resistor R1 connects
Power supply is connect, the second end of first resistor R1 is electrically connected with the electrode catheter of water quality sensor 1, the first end of second resistance R2 and the
The second end of one resistance R1 is electrically connected, and the second end of second resistance R2 is electrically connected with a signal input part of controller 33.
Second measure loop 32 includes 3rd resistor R3 and the 4th resistance R4, and the resistance value of 3rd resistor R3 is greater than or equal to the
The resistance value of one resistance R1, the resistance value of the 4th resistance R4 are equal to the resistance value of second resistance R2, and the first end of 3rd resistor R3 connects electricity
The second end in source, 3rd resistor R3 is electrically connected with the electrode catheter of water quality sensor 1, first end and the third electricity of the 4th resistance R4
The second end electrical connection of R3 is hindered, the second end of the 4th resistance R4 is electrically connected with the reverse input end of controller 33.In the present embodiment
3rd resistor R3 resistance value be greater than first resistor R1 resistance value.The resistance value of 3rd resistor R3 according to the leakage inspector spirit
Sensitivity is adjusted setting, but the prevention of 3rd resistor R3 determines, then the detection sensitivity of leakage inspector determines.
The resistance value of 3rd resistor R3 is smaller, and sensitivity is higher.
In order to which aspect is described below, the voltage for defining first resistor R1 second end is V1, defines 3rd resistor R3 the
The voltage at two ends is V2, supply voltage VCC.
Water quality sensor 1 is to access in water, therefore two electrode catheters of water quality sensor 1 are by tap water and company
Be connected together forming circuit, therefore the voltage value of V1 is the equivalent resistance R of water between 1 probe of first resistor R1 and water quality sensorw
Partial pressure, i.e. V1=VCC*Rw/(Rw+ R1), corresponding V1 < VCC.
The leak water detdction position in water purifier is not water, i.e. the two of detecting electrode 2 electrode catheter under normal circumstances
It is not turned on, at this time V2=VCC, at this time V2 > V1.Voltage signal is converted to the on-state rate data of water by controller 33 at this time, into
And the water obtained with water quality sensor is compared calculating to on-state rate data, the difference of controller calculating at this time will necessarily surpass
The on-state rate difference threshold of the corresponding water of water leakage alarm of setting is crossed, controller 33 is controlled at this time without actuation of an alarm, i.e., aobvious
Show that lamp 4 does not work, buzzer 5 is not also rung.
When there is condensed water to fall on leak water detdction position, since condensed water is pure water or close to pure water, condensed water exists
Equivalent resistance R between two electrode catheters of detecting electrode 2 be far longer than water between two electrode catheters of water quality sensor 1 etc.
Imitate resistance.Therefore V2 ≈ VCC, at this time then V2 > V1.Voltage signal is converted to the on-state rate data of water, Jin Eryu by controller 33
The water that water quality sensor obtains is compared calculating to on-state rate data, and the difference that controller calculates at this time, which is still less than, to be set
The on-state rate difference threshold of the corresponding water of fixed water leakage alarm, controller 33 are controlled at this time without actuation of an alarm, i.e. display lamp 4
It does not work, buzzer 5 is not also rung.
When the water in water route falls on leak water detdction position, that is, in the case where real leak occurs, the two of detecting electrode 2
A electrode catheter can be submerged, at this time between the two of detecting electrode 2 electrode catheter water equivalent resistance R ≈ Rw, but due to R3 >
Voltage signal is converted to the on-state rate data of water, and then and water quality sensor by R1 and R2=R4, therefore V2 < V1, controller 33
The water of acquisition is compared calculating to on-state rate data, and the difference that controller 33 calculates at this time will necessarily be more than the leak of setting
Alarm the on-state rate difference threshold of corresponding water, controller 33 control at this time display lamp 4 light, 5 ring of buzzer, prompt leak
The case where.And the on-state rate difference threshold for the water being arranged in controller 33 can be adjusted by the setting of set key 6, so
It is applied in different leak susceptibility environment with facilitating.
The water purifier utilizes water quality sensor on the basis of carrying out effluent quality detection using water quality sensor
Signal is detected as leak water detdction reference signal, and then according to the actual conditions of water quality, and not according to the fixed value set
Leak judgement is carried out, so that the better adaptability of leak judgement, while the water purifier can also effectively distinguish condensed water and leak
The case where, and then the case where leakage false alarming is carried out in the case of condensed water is avoided, warning message is more accurate, reduces check man
Make, use is more humanized.
Claims (8)
1. a kind of water purifier, including shell, setting are connected in the intracorporal filter device of shell and respectively with the filter device
Water inlet pipe, outlet pipe, it is characterised in that: further include be arranged in the intracorporal leakage inspector of shell, the leakage inspector
Including
Water quality sensor (1) is arranged in water route；
Detecting electrode (2), including two electrode catheters, are arranged in the leak water detdction position in water purifier；
Control circuit board (3) is electrically connected, for water quality sensor (1) respectively with water quality sensor (1), detecting electrode (2) electricity
It is compared with the detection signal of detecting electrode (2) and exports leak water detdction signal.
2. water purifier according to claim 1, it is characterised in that: the control circuit board (3) includes the first measure loop
(31), the second measure loop (32) and controller (33), the input terminal and water quality sensor of first measure loop (31)
(1) electrode catheter electrical connection, the input terminal of the second measure loop (32) are electrically connected with the electrode catheter of detecting electrode (2), institute
State the first measure loop (31), the output end of the second measure loop (32) is electrically connected with controller (33) respectively.
3. water purifier according to claim 2, it is characterised in that: the control circuit board (3) further includes and controller
(33) display lamp (4) and/or buzzer (5) being electrically connected.
4. water purifier according to claim 2 or 3, it is characterised in that: first measure loop (31) includes the first electricity
(R1) and second resistance (R2) are hindered, the first end of first resistor (R1) connects power supply, the second end and water quality of first resistor (R1)
The electrode catheter of sensor (1) is electrically connected, and the second end of the first end and first resistor (R1) of the second resistance (R2) is electrically connected
It connects, the second end of the second resistance (R2) is electrically connected with a signal input part of controller (33)；
Second measure loop (32) includes 3rd resistor (R3) and the 4th resistance (R4), the resistance value of the 3rd resistor (R3)
More than or equal to the resistance value of first resistor (R1), the resistance value of the 4th resistance (R4) is equal to the resistance value of second resistance (R2), third electricity
The first end for hindering (R3) connects power supply, and the second end of 3rd resistor (R3) is electrically connected with the electrode catheter of water quality sensor (1), institute
The first end for stating the 4th resistance (R4) is electrically connected with the second end of 3rd resistor (R3), the second end of the 4th resistance (R4) with
Another signal input part of controller (33) is electrically connected.
5. water purifier according to claim 1, it is characterised in that: the detecting electrode (2) is provided at least two, each to examine
Electrode (2) are surveyed to be electrically connected with control circuit board (3) respectively.
6. water purifier according to claim 1, it is characterised in that: the water quality sensor (1) is TDS sensor.
7. water purifier according to claim 1, it is characterised in that: the detecting electrode (2) is arranged in the housing bottom
Leak water detdction position.
8. water purifier according to claim 1, it is characterised in that: be additionally provided on the shell and control circuit board (3)
The set key (6) of electrical connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821564168.5U CN209027736U (en) | 2018-09-25 | 2018-09-25 | A kind of water purifier |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821564168.5U CN209027736U (en) | 2018-09-25 | 2018-09-25 | A kind of water purifier |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209027736U true CN209027736U (en) | 2019-06-25 |
Family
ID=66903993
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821564168.5U Active CN209027736U (en) | 2018-09-25 | 2018-09-25 | A kind of water purifier |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209027736U (en) |
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2018
- 2018-09-25 CN CN201821564168.5U patent/CN209027736U/en active Active
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