CN204630965U - The water quality detecting device of purifier and purifier - Google Patents
The water quality detecting device of purifier and purifier Download PDFInfo
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- CN204630965U CN204630965U CN201520197027.4U CN201520197027U CN204630965U CN 204630965 U CN204630965 U CN 204630965U CN 201520197027 U CN201520197027 U CN 201520197027U CN 204630965 U CN204630965 U CN 204630965U
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Abstract
The utility model discloses the water quality detecting device of a kind of purifier and purifier, described water quality detecting device comprises: be arranged on the detecting electrode group in the water route of described purifier, and described detecting electrode group has the first detecting electrode and the second detecting electrode; For applying the electrode drive circuit of drive singal to described detecting electrode group; For detecting the testing circuit of voltage between described first detecting electrode and described second detecting electrode or electric current; Control circuit, described control circuit is connected with described testing circuit, and described control circuit obtains the total dissolved solidss TDS value in water according to the voltage between described first detecting electrode and described second detecting electrode or electric current.Thus, obtain TDS value by the voltage that detects or electric current, accuracy of detection is higher, and this water quality detecting device can independent of the master control borad of purifier.
Description
Technical field
The utility model relates to technical field of electric appliances, particularly a kind of water quality detecting device of purifier and a kind of purifier.
Background technology
Relevant purifier has TDS water quality detecting device mostly, thus detects the water quality of purifier by TDS water quality detection module.In the related, TDS water quality detecting device is integrated on master control borad mostly, but its shortcoming existed is that accuracy of detection is not high, can only realize rough calculation.Therefore, there are the needs improved in correlation technique.
Utility model content
The utility model is intended to solve one of technical matters in correlation technique at least to a certain extent.For this reason, an object of the present utility model is the water quality detecting device proposing a kind of purifier, and this water quality detecting device can be arranged independent of the master control borad of purifier, and can realize accurate detection.
Another object of the present utility model is to propose a kind of purifier.
According to the water quality detecting device of the purifier that the utility model proposes on the one hand, comprising: be arranged on the detecting electrode group in the water route of described purifier, described detecting electrode group has the first detecting electrode and the second detecting electrode; For applying the electrode drive circuit of drive singal to described detecting electrode group; For detecting the testing circuit of voltage between described first detecting electrode and described second detecting electrode or electric current; Control circuit, described control circuit is connected with described testing circuit, and described control circuit obtains the total dissolved solidss TDS value in water according to the voltage between described first detecting electrode and described second detecting electrode or electric current.
According to the water quality detecting device of the purifier that the utility model proposes, drive singal is applied to detecting electrode group by electrode drive circuit, and detecting voltage between the first detecting electrode and the second detecting electrode or electric current by testing circuit, control circuit obtains the total dissolved solidss TDS value in water according to the voltage between the first detecting electrode and the second detecting electrode or electric current.Thus, this water quality detecting device obtains TDS value by the voltage that detects or electric current, and accuracy of detection is higher, and this water quality detecting device can independent of the master control borad of purifier.
Particularly, described drive singal can be the positive and negative square-wave signal replaced.
Wherein, the absolute value of the amplitude of the described positive and negative square-wave signal replaced is the first predeterminated voltage.
Further, the water quality detecting device of described purifier also comprises: mu balanced circuit, and described mu balanced circuit is used for exporting the second predeterminated voltage to described control circuit, thinks that described control circuit is powered.
Further, described control circuit comprises pressure unit, and it is described first predeterminated voltage that described pressure unit is used for described second predeterminated voltage step-down.
Further, the water quality detecting device of described purifier also comprises: amplifying circuit, described amplifying circuit is connected between described testing circuit and described control circuit, and described amplifying circuit is used for amplifying the voltage between described first detecting electrode detected and described second detecting electrode or electric current.
According to the purifier that the utility model proposes on the other hand, comprising: the water quality detecting device of described purifier; Control panel, described control panel communicates with the water quality detecting device of described purifier, to obtain the TDS value that described water quality detecting device obtains.
According to the purifier that the utility model proposes, control panel obtains TDS value by water quality detecting device, and the precision of the TDS value of acquisition is higher, and water quality detecting device can independent of master control borad.
Particularly, can I2C mode, UART mode or SPI mode communicate between described control panel and the water quality detecting device of described purifier.
Accompanying drawing explanation
Fig. 1 is the block diagram of the water quality detecting device of purifier according to the utility model embodiment;
Fig. 2 is the block diagram of the water quality detecting device of purifier according to the utility model embodiment; And
Fig. 3 is the block diagram of the purifier according to the utility model embodiment.
Reference numeral:
Detecting electrode group 10, electrode drive circuit 20, testing circuit 30 and control circuit 40;
First detecting electrode 101 and the second detecting electrode 102;
Mu balanced circuit 50, pressure unit 401 and amplifying circuit 60;
The water quality detecting device 1 of purifier and control panel 2.
Embodiment
Be described below in detail embodiment of the present utility model, the example of described embodiment is shown in the drawings, and wherein same or similar label represents same or similar element or has element that is identical or similar functions from start to finish.Be exemplary below by the embodiment be described with reference to the drawings, be intended to for explaining the utility model, and can not be interpreted as restriction of the present utility model.
Fig. 1 is the block diagram of the water quality detecting device of purifier according to the utility model embodiment.As shown in Figure 1, the water quality detecting device of this purifier comprises: detecting electrode group 10, electrode drive circuit 20, testing circuit 30 and control circuit 40.
Wherein, detecting electrode group 10 is arranged in the water route of purifier, and detecting electrode group 10 has the first detecting electrode 101 and the second detecting electrode 102; Electrode drive circuit 20 is for applying drive singal to detecting electrode group 10; Testing circuit 30 is for detecting voltage between the first detecting electrode 101 and the second detecting electrode 102 or electric current.
It should be noted that, when electrode drive circuit 20 applies drive singal to detecting electrode group 10, first detecting electrode 101 and the second detecting electrode 102 will have different electromotive forces, electric potential difference is formed between first detecting electrode 101 and the second detecting electrode 102, positively charged ion moves to the electrode of low potential, electronegative ion moves to the electrode of high potential, between the first detecting electrode 101 and the second detecting electrode 102, electric current is defined like this by the movement of ion, and be also provided with voltage between the first detecting electrode 101 and the second detecting electrode 102, testing circuit 30 can detect voltage or electric current.
Control circuit 40 is connected with testing circuit 30, control circuit 40 obtains total dissolved solidss TDS (Total dissolved solids, total dissolved solidss or the dissolvability solid amount) value in water according to the voltage between the first detecting electrode 101 and the second detecting electrode 102 or electric current.That is, control circuit 40 is by being connected with testing circuit 30 to obtain the voltage between the first detecting electrode 101 and the second detecting electrode 102 or electric current, particularly, testing circuit 30 can detect voltage between the first detecting electrode 101 and the second detecting electrode 102 or electric current by predeterminated frequency, and the voltage detected or electric current are sent to control circuit 40.
It should be noted that, can be prestored in control circuit 40 relational expression between voltage and TDS value or the relational expression between electric current and TDS value, when control circuit 40 gets voltage between the first detecting electrode 101 and the second detecting electrode 102 or electric current, corresponding relational expression can be inquired about, and then the TDS value calculated in the water at the first detecting electrode 101 and the second detecting electrode 102 place, to obtain the water quality in the water route of purifier.Certainly, also can prestore in control circuit 40 voltage-TDS value relation table or electric current-TDS value relation table, the TDS value that control circuit 40 can be corresponding according to relation table inquiry.
In addition, be understandable that, detecting electrode group 10 can be one or more, and when detecting electrode group 10 is multiple, control circuit 40 will obtain multiple voltage or electric current, and control circuit 40 can obtain the TDS value in water according to the mean value of multiple voltage or electric current.
For electric current, after water quality detecting device energising, electrode drive circuit 20 applies drive singal to detecting electrode group 10, electric current is formed between first detecting electrode 101 and the second detecting electrode 102, testing circuit 30 can detect electric current between the first detecting electrode 101 and the second detecting electrode 102 by predeterminated frequency, and the electric current detected is sent to control circuit 40, control circuit 40 can calculate the TDS value in water according to the electric current received and the relational expression between the electric current prestored and TDS value, thus the water quality obtained in the water route of purifier, like this, water quality detecting device can complete separately TDS measuring ability.
Like this, the water quality detecting device of the purifier that the utility model embodiment proposes, drive singal is applied to detecting electrode group 10 by electrode drive circuit 20, and detecting voltage between the first detecting electrode 101 and the second detecting electrode 102 or electric current by testing circuit 30, control circuit 40 obtains the total dissolved solidss TDS value in water according to the voltage between the first detecting electrode 101 and the second detecting electrode 102 or electric current.Thus, this water quality detecting device obtains TDS value by the voltage that detects or electric current, and accuracy of detection is higher, and this water quality detecting device can independent of the master control borad of purifier.
According to an embodiment of the present utility model, drive singal can be the positive and negative square-wave signal replaced.Particularly, the absolute value of the amplitude of the positive and negative square-wave signal replaced can be the first predeterminated voltage, and preferably, the first predeterminated voltage can be 2.5V.That is, electrode drive circuit 20 can export the signal of the first predeterminated voltage to detecting electrode group 10 in first Preset Time, electrode drive circuit 20 can export the signal of the first negative predeterminated voltage to detecting electrode group 10 in ensuing second Preset Time, thus, by constantly exporting positive/negative voltage signal, thus form the positive and negative square-wave signal replaced.
Specifically, the form that electrode drive circuit 20 can positive and negatively replace is energized to detecting electrode group 10, such as, when electrode drive circuit 20 exports positive square-wave signal, the electromotive force of the first detecting electrode 101 will be greater than the electromotive force of the second detecting electrode 102, when electrode drive circuit 20 exports negative square-wave signal, the electromotive force of the second detecting electrode 102 will be greater than the electromotive force of the first detecting electrode 101, change along with square-wave signal overturns by the electromotive force of the first detecting electrode 101 and the electromotive force of the second detecting electrode 102
Thus, alternately detecting electrode group 10 is energized by positive and negative, the corresponding upset of electromotive force of the first detecting electrode 101 and the second detecting electrode 102, thus effectively can avoid polarization effect, prevent positive charge or negative charge from accumulating on detecting electrode.
According to an embodiment of the present utility model, as shown in Figure 2, the water quality detecting device of purifier also comprises: mu balanced circuit 50.Wherein, mu balanced circuit 50, for exporting the second predeterminated voltage to control circuit 40, thinks that control circuit 40 is powered.That is, first water quality detecting device will will carry out voltage stabilizing process upon power-up, and the supply voltage of input is stabilized in the second predeterminated voltage such as 5V by mu balanced circuit 50, think that control circuit 40 is powered.
Thus, mu balanced circuit 50 can process the supply voltage inputing to water quality detecting device, with the operating voltage needed for output control circuit 40, thus this water quality detecting device can adopt the power supply mode of Width funtion, and the scope of such as supply voltage can be 3.3V-40V.
Further, according to an embodiment of the present utility model, as shown in Figure 2, control circuit 50 can comprise pressure unit 401.Wherein, pressure unit 401 is for being the first predeterminated voltage by the second predeterminated voltage step-down.
That is, after giving control circuit 50 power supply, second predeterminated voltage can be stabilized in the first predeterminated voltage such as 2.5V by the pressure unit 401 in control circuit 50, afterwards, control circuit 50 exports the first predeterminated voltage to electrode drive circuit 20, and electrode drive circuit 20 forms the positive and negative square-wave signal replaced with the first predeterminated voltage.
Further, according to an embodiment of the present utility model, as shown in Figure 2, the water quality detecting device of purifier also comprises: amplifying circuit 60.Wherein, amplifying circuit 60 is connected between testing circuit 30 and control circuit 40, and amplifying circuit 60 is for amplifying the voltage between the first detecting electrode 101 detected and the second detecting electrode 102 or electric current.
That is, amplifying circuit 60 can amplify the voltage between the first detecting electrode 101 and the second detecting electrode 102 or electric current, and the voltage after amplification or electric current are sent to control circuit 40, control circuit 40 can obtain the TDS value in water according to the voltage after amplification or electric current.
In sum, according to the water quality detecting device of the purifier that the utility model embodiment proposes, drive singal is applied to detecting electrode group by electrode drive circuit, and detecting voltage between the first detecting electrode and the second detecting electrode or electric current by testing circuit, control circuit obtains the total dissolved solidss TDS value in water according to the voltage between the first detecting electrode and the second detecting electrode or electric current.Thus, this water quality detecting device obtains TDS value by the voltage that detects or electric current, and accuracy of detection is higher, and this water quality detecting device can independent of the master control borad of purifier.In addition, drive singal can be the positive and negative square-wave signal replaced, thus effectively can avoid polarization effect, prevents positive charge or negative charge from accumulating on detecting electrode.
In addition, the utility model also proposed a kind of purifier.
Fig. 3 is the block diagram of the purifier according to the utility model embodiment.As shown in Figure 3, this purifier comprises: the water quality detecting device 1 of the purifier of above-described embodiment and control panel 2.
Wherein, control panel 2 can communicate with the water quality detecting device 1 of purifier, to obtain the TDS value that water quality detecting device 1 obtains.
That is, after purifier energising, water quality detecting device 1 can complete separately TDS measuring ability, namely water quality detecting device 1 can detect the water quality in the water route of purifier and generates TDS value by predeterminated frequency, afterwards, water quality detecting device 1 is by communicating that with control panel 2 the TDS value of generation is sent to control panel 2.
Thus, according to the purifier that the utility model embodiment proposes, control panel 2 obtains TDS value by water quality detecting device 1, and the precision of the TDS value of acquisition is higher, and water quality detecting device can independent of master control borad.
According to a concrete example of utility model embodiment, can I2C (Inter-Integrated Circuit between the water quality detecting device 1 of control panel 2 and purifier, I2C bus) mode, UART (Universal Asynchronous Receiver/Transmitter, universal asynchronous receiving-transmitting transmitter) mode or SPI (Serial Peripheral Interface, Serial Peripheral Interface (SPI)) mode communicate.
In description of the present utility model, it will be appreciated that, term " " center ", " longitudinal direction ", " transverse direction ", " length ", " width ", " thickness ", " on ", D score, " front ", " afterwards ", " left side ", " right side ", " vertically ", " level ", " top ", " end " " interior ", " outward ", " clockwise ", " counterclockwise ", " axis ", " radial direction ", orientation or the position relationship of the instruction such as " circumference " are based on orientation shown in the drawings or position relationship, only the utility model and simplified characterization for convenience of description, instead of indicate or imply that the device of indication or element must have specific orientation, with specific azimuth configuration and operation, therefore can not be interpreted as restriction of the present utility model.
In addition, term " first ", " second " only for describing object, and can not be interpreted as instruction or hint relative importance or imply the quantity indicating indicated technical characteristic.Thus, be limited with " first ", the feature of " second " can express or impliedly comprise at least one this feature.In description of the present utility model, the implication of " multiple " is at least two, such as two, three etc., unless otherwise expressly limited specifically.
In the utility model, unless otherwise clearly defined and limited, the term such as term " installation ", " being connected ", " connection ", " fixing " should be interpreted broadly, and such as, can be fixedly connected with, also can be removably connect, or integral; Can be mechanical connection, also can be electrical connection; Can be directly be connected, also indirectly can be connected by intermediary, can be the connection of two element internals or the interaction relationship of two elements, unless otherwise clear and definite restriction.For the ordinary skill in the art, the concrete meaning of above-mentioned term in the utility model can be understood as the case may be.
In the utility model, unless otherwise clearly defined and limited, fisrt feature second feature " on " or D score can be that the first and second features directly contact, or the first and second features are by intermediary indirect contact.And, fisrt feature second feature " on ", " top " and " above " but fisrt feature directly over second feature or oblique upper, or only represent that fisrt feature level height is higher than second feature.Fisrt feature second feature " under ", " below " and " below " can be fisrt feature immediately below second feature or tiltedly below, or only represent that fisrt feature level height is less than second feature.
In the description of this instructions, specific features, structure, material or feature that the description of reference term " embodiment ", " some embodiments ", " example ", " concrete example " or " some examples " etc. means to describe in conjunction with this embodiment or example are contained at least one embodiment of the present utility model or example.In this manual, to the schematic representation of above-mentioned term not must for be identical embodiment or example.And the specific features of description, structure, material or feature can combine in one or more embodiment in office or example in an appropriate manner.In addition, when not conflicting, the feature of the different embodiment described in this instructions or example and different embodiment or example can carry out combining and combining by those skilled in the art.
Although illustrate and described embodiment of the present utility model above, be understandable that, above-described embodiment is exemplary, can not be interpreted as restriction of the present utility model, those of ordinary skill in the art can change above-described embodiment, revises, replace and modification in scope of the present utility model.
Claims (8)
1. a water quality detecting device for purifier, is characterized in that, comprising:
Be arranged on the detecting electrode group in the water route of described purifier, described detecting electrode group has the first detecting electrode and the second detecting electrode;
For applying the electrode drive circuit of drive singal to described detecting electrode group;
For detecting the testing circuit of voltage between described first detecting electrode and described second detecting electrode or electric current; And
Control circuit, described control circuit is connected with described testing circuit, and described control circuit obtains the total dissolved solidss TDS value in water according to the voltage between described first detecting electrode and described second detecting electrode or electric current.
2. the water quality detecting device of purifier as claimed in claim 1, it is characterized in that, described drive singal is the positive and negative square-wave signal replaced.
3. the water quality detecting device of purifier as claimed in claim 2, it is characterized in that, the absolute value of the amplitude of the described positive and negative square-wave signal replaced is the first predeterminated voltage.
4. the water quality detecting device of purifier as claimed in claim 3, is characterized in that, also comprise: mu balanced circuit, and described mu balanced circuit is used for exporting the second predeterminated voltage to described control circuit, thinks that described control circuit is powered.
5. the water quality detecting device of purifier as claimed in claim 4, it is characterized in that, described control circuit comprises pressure unit, and it is described first predeterminated voltage that described pressure unit is used for described second predeterminated voltage step-down.
6. the water quality detecting device of purifier as claimed in claim 1, is characterized in that, also comprise:
Amplifying circuit, described amplifying circuit is connected between described testing circuit and described control circuit, and described amplifying circuit is used for amplifying the voltage of described first detecting electrode detected and described second detecting electrode or electric current.
7. a purifier, is characterized in that, comprising:
The water quality detecting device of the purifier according to any one of claim 1-6;
Control panel, described control panel communicates with the water quality detecting device of described purifier, to obtain the TDS value that described water quality detecting device obtains.
8. purifier as claimed in claim 7, is characterized in that, communicate between described control panel and the water quality detecting device of described purifier with I2C mode, UART mode or SPI mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520197027.4U CN204630965U (en) | 2015-04-02 | 2015-04-02 | The water quality detecting device of purifier and purifier |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201520197027.4U CN204630965U (en) | 2015-04-02 | 2015-04-02 | The water quality detecting device of purifier and purifier |
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| CN204630965U true CN204630965U (en) | 2015-09-09 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105784783A (en) * | 2016-03-22 | 2016-07-20 | 派棱环保科技（苏州）有限公司 | Microfluidic cavity water quality detection method based on semiconductor rigid microneedle |
| CN105954485A (en) * | 2016-04-29 | 2016-09-21 | 上海海纳通物联网科技有限公司 | Method for monitoring TDS water quality power circuit |
| CN108398463A (en) * | 2018-03-06 | 2018-08-14 | 佛山市顺德区美的饮水机制造有限公司 | Total dissolved solidss detection method, detection device, detection device and storage medium |
-
2015
- 2015-04-02 CN CN201520197027.4U patent/CN204630965U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105784783A (en) * | 2016-03-22 | 2016-07-20 | 派棱环保科技（苏州）有限公司 | Microfluidic cavity water quality detection method based on semiconductor rigid microneedle |
| CN105954485A (en) * | 2016-04-29 | 2016-09-21 | 上海海纳通物联网科技有限公司 | Method for monitoring TDS water quality power circuit |
| CN105954485B (en) * | 2016-04-29 | 2017-12-26 | 上海海纳通物联网科技有限公司 | A kind of circuit with monitoring TDS water quality functions |
| CN108398463A (en) * | 2018-03-06 | 2018-08-14 | 佛山市顺德区美的饮水机制造有限公司 | Total dissolved solidss detection method, detection device, detection device and storage medium |
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