CN206399502U - Probe-type water level detection circuit and condensate tank of dehumidifier - Google Patents
Probe-type water level detection circuit and condensate tank of dehumidifier Download PDFInfo
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- CN206399502U CN206399502U CN201620925998.0U CN201620925998U CN206399502U CN 206399502 U CN206399502 U CN 206399502U CN 201620925998 U CN201620925998 U CN 201620925998U CN 206399502 U CN206399502 U CN 206399502U
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 86
- 238000001514 detection method Methods 0.000 title claims abstract description 32
- 239000000523 sample Substances 0.000 claims abstract description 115
- 238000005070 sampling Methods 0.000 claims abstract description 40
- 239000007788 liquid Substances 0.000 claims abstract description 5
- 238000000926 separation method Methods 0.000 claims abstract description 4
- 239000000463 material Substances 0.000 claims description 4
- 229910001220 stainless steel Inorganic materials 0.000 claims description 4
- 239000010935 stainless steel Substances 0.000 claims description 4
- 238000007689 inspection Methods 0.000 claims description 2
- 238000012544 monitoring process Methods 0.000 claims 1
- 239000003990 capacitor Substances 0.000 abstract description 2
- 238000003911 water pollution Methods 0.000 abstract description 2
- 102000005591 NIMA-Interacting Peptidylprolyl Isomerase Human genes 0.000 description 24
- 108010059419 NIMA-Interacting Peptidylprolyl Isomerase Proteins 0.000 description 24
- 102000007315 Telomeric Repeat Binding Protein 1 Human genes 0.000 description 24
- 108010033711 Telomeric Repeat Binding Protein 1 Proteins 0.000 description 24
- 230000005611 electricity Effects 0.000 description 6
- 238000005868 electrolysis reaction Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 229910052697 platinum Inorganic materials 0.000 description 1
- 239000010970 precious metal Substances 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- 239000004332 silver Substances 0.000 description 1
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- Measurement Of Levels Of Liquids Or Fluent Solid Materials (AREA)
- Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
Abstract
The utility model discloses a kind of probe-type water level detection circuit and condensate tank of dehumidifier, and wherein the probe-type water level detection circuit includes controller, the first probe, the second probe, power supply, on-off circuit and sampling capacitance；When carrying out water level detecting, the first probe and the second probe separation are arranged at testing liquid, controller driving switch circuit turn-on, power supply is powered to the first probe and the second probe；Controller to sampled capacitor voltage sample obtaining sampled voltage, and judges water level conditions according to sampled voltage；When not detected to water level, controller driving switch circuit shut-off, power supply stops powering to the first probe and the second probe.Technical solutions of the utility model are reduced to water pollution, extend the probe life-span.
Description
Technical field
The utility model is related to electronic circuit technology field, more particularly to a kind of probe-type water level detection circuit and water level inspection
Survey device.
Background technology
Probe-type water level detection circuit is used to detect the water level of the water storage devices such as water tank, to understand the water storage of water tank
Amount.Existing probe-type water level detection circuit detects that its probe can be always maintained at being powered by probe to water level.But it is logical
When the probe of electricity is positioned in water, water pollution can be caused to water electrolysis, while also greatly reducing the life-span of probe.
Utility model content
Main purpose of the present utility model is to provide a kind of probe-type water level detection circuit, it is intended to pollution of the reduction to water,
Extend the probe life-span.
To achieve the above object, the utility model proposes a kind of probe-type water level detection circuit, the probe-type water level
Detect that circuit includes controller, the first probe, the second probe, power supply, on-off circuit and sampling capacitance；
When carrying out water level detecting, first probe and second probe separation are arranged at testing liquid, it is described
Controller drives the on-off circuit conducting, and the power supply is powered to the first probe and the second probe；The controller is to sampling
Capacitance voltage sample obtaining sampled voltage, and judges water level conditions according to the sampled voltage；
When not detected to water level, the controller drives the on-off circuit shut-off, and the power supply stops to institute
State the first probe and second probe is powered.
Preferably, the controller includes sampling end and drive end；The input of the power supply and the on-off circuit connects
Connect, the controlled end of the on-off circuit is connected with the drive end of the controller, the output end of the on-off circuit is adopted with described
The first end connection of sample electric capacity, the second end ground connection of the sampling capacitance；The sampling end of the controller and the sampling capacitance
The second end connection；First probe and second probe are connected to the first end and second of the sampling capacitance
End.
Preferably, the on-off circuit includes the first triode, first resistor, second resistance and 3rd resistor；Described
The colelctor electrode of one triode is connected with the power supply, and the emitter stage of first triode connects with the first end of the first resistor
Connect, the second end of the first resistor is connected with the first end of the sampling capacitance；The first end of the second resistance with it is described
The base stage connection of first triode, the second end of the second resistance is connected with the drive end of the controller；3rd electricity
The first end of resistance is connected with the colelctor electrode of first triode, the second end of the 3rd resistor and first triode
Base stage is connected.
Preferably, the probe-type water level detection circuit also includes the 4th resistance, the first end of the 4th resistance and institute
The first end connection of sampling capacitance is stated, the second end of the 4th resistance is connected with the sampling end of the control end.
Preferably, first probe and second probe are sampled stainless steel material.
The utility model also proposes a kind of condensate tank of dehumidifier, and the condensate tank of dehumidifier includes probe-type as described above
Water level detection circuit, the probe-type water level detection circuit includes probe-type water level detection circuit, the probe-type water level detecting
Circuit includes controller, the first probe, the second probe, power supply, on-off circuit and sampling capacitance；, will when carrying out water level detecting
First probe and second probe separation are arranged at testing liquid, and the controller drives the on-off circuit conducting,
The power supply is powered to the first probe and the second probe；The controller, which to sampled capacitor voltage sample, obtains sampling electricity
Pressure, and water level conditions are judged according to the sampled voltage；When not detected to water level, the controller drives the switch
Circuit is turned off, and the power supply stops powering to first probe and second probe.
Technical solutions of the utility model are by setting controller, the first probe, the second probe, power supply, on-off circuit and adopting
Sample electric capacity, forms a kind of probe-type water level detection circuit.The controller is visited by sampling capacitance to the first probe and second
Voltage between pin is sampled, when water level changes, and the voltage between the first probe and the second probe also changes therewith,
The voltage that controller is obtained according to sampling capacitance judges the height of water level；The controller controlling switch when needing sensed water level
Circuit turn-on so that power supply is powered to the first probe and the second probe, and power cutoff when without water level detecting, so as to subtract
The conduction time of probe is lacked, reduction extends the service life of probe because being electrolysed the pollution to water.
Brief description of the drawings
, below will be to embodiment in order to illustrate more clearly of the utility model embodiment or technical scheme of the prior art
Or the accompanying drawing used required in description of the prior art is briefly described, it should be apparent that, drawings in the following description are only
It is some embodiments of the present utility model, for those of ordinary skill in the art, is not paying the premise of creative work
Under, other accompanying drawings can also be obtained according to the structure shown in these accompanying drawings.
Fig. 1 is the structural representation of the embodiment of the utility model probe-type water level detection circuit one.
Drawing reference numeral explanation：
| Label | Title | Label | Title |
| 100 | Controller | PIN1 | First probe |
| 200 | On-off circuit | PIN2 | Second probe |
| R1 | First resistor | Cx | Using electric capacity |
| R2 | Second resistance | Q1 | First triode |
| R3 | 3rd resistor | VCC | Power supply |
| R4 | 4th resistance |
Realization, functional characteristics and the advantage of the utility model purpose will be described further referring to the drawings in conjunction with the embodiments.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the utility model embodiment is carried out
Clearly and completely describe, it is clear that described embodiment is only a part of embodiment of the present utility model, rather than all
Embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are not making creative work premise
Lower obtained every other embodiment, belongs to the scope of the utility model protection.
It is to be appreciated that institute is directional in the utility model embodiment indicates (such as up, down, left, right, before and after ...)
Relative position relation, motion conditions for being only used for explaining under a certain particular pose (as shown in drawings) between each part etc., such as
When really the particular pose changes, then directionality indicates also correspondingly therewith to change.
In addition, the description for being related to " first ", " second " etc. in the utility model is only used for describing purpose, and it can not manage
Solve to indicate or imply its relative importance or the implicit quantity for indicating indicated technical characteristic.Thus, define " the
One ", at least one this feature can be expressed or be implicitly included to the feature of " second ".In addition, the skill between each embodiment
Art scheme can be combined with each other, but must can be implemented as basis with those of ordinary skill in the art, when technical scheme
With reference to occur it is conflicting or when can not realize it will be understood that the combination of this technical scheme is not present, also not in the utility model
It is required that protection domain within.
The utility model proposes a kind of probe-type water level detection circuit.
Reference picture 1, in the utility model embodiment, the probe-type water level detection circuit is visited including controller 100, first
Pin PIN1, the second probe PIN2, power supply VCC, on-off circuit 200 and sampling capacitance Cx.
When carrying out water level detecting, the first probe PIN1 and the second probe PIN2 are arranged at intervals at prepare liquid
Body, the controller 100 drives the on-off circuit 200 to turn on, and the power supply VCC gives the first probe PIN1 and the second probe
PIN2 powers；The controller 100 to sampling capacitance Cx voltages sample obtaining sampled voltage, and according to the sampled voltage
Judge water level conditions；When not detected to water level, the controller 100 drives the on-off circuit 200 to turn off, the electricity
Source VCC stops powering to the first probe PIN1 and the second probe PIN2.
In the present embodiment, the water level in water tank is detected using water level detection circuit.First probe PIN1 is arranged at
At higher level, and the second probe PIN2 is then arranged at compared with low water level, and water level detection circuit make use of the electric conductivity of water to examine
Water level is surveyed, only when needing to carry out water level detecting, controller 100 is just understood controlling switch circuit 200 and turned on, to the first probe
PIN1 and the second probe PIN2 are powered.
It should be noted that because the first probe PIN1 and the second probe PIN2 are different from the contact area of water, the first probe
Resistance between PIN1 and the second probe PIN2 also can be different, two when having water between the first probe PIN1 and the second probe PIN2
Resistance between probe is about 3K Ω (kilohm)~10K Ω；There is no water between the first probe PIN1 and the second probe PIN2
When two probes between resistance be more than 10M Ω (megohm).When on-off circuit 200 is turned on, power supply VCC is in the first probe PIN1
And second on probe PIN2 by there is electric current, thus in different water levels, on the first probe PIN1 and the second probe PIN2
Obtained partial pressure is different.Burning has program in controller 100, and record has the corresponding relation of voltage and water level, passes through parsing first
Partial pressure on probe PIN1 and the second probe PIN2, just can obtain the water level conditions of correlation.In the present embodiment, the controller
100 sampling single-chip microcomputers.
Technical solutions of the utility model are by setting controller 100, the first probe PIN1, the second probe PIN2, power supply
VCC, on-off circuit 200 and sampling capacitance Cx, form a kind of probe-type water level detection circuit.The controller 100 is by adopting
Sample electric capacity Cx samples to the voltage between the first probe PIN1 and the second probe PIN2, when water level changes, and first
Voltage between probe PIN1 and the second probe PIN2 also changes therewith, the voltage that controller 100 is obtained according to sampling capacitance Cx
Judge the height of water level；The controller 100 only controls on-off circuit 200 to turn on when needing sensed water level so that power supply VCC gives
First probe PIN1 and the second probe PIN2 power, and power cutoff VCC when without water level detecting, so as to reduce probe
Conduction time, reduction extends the service life of probe because being electrolysed the pollution to water.
In the present embodiment, the controller 100 includes sampling end DET and drive end DRI；The power supply VCC is opened with described
The input connection on powered-down road 200, the controlled end of the on-off circuit 200 is connected with the drive end DRI of the controller 100,
The output end of the on-off circuit 200 is connected with the first end of the sampling capacitance Cx, the second termination of the sampling capacitance Cx
Ground；The sampling end DET of the controller 100 is connected with the second end of the sampling capacitance Cx；The first probe PIN1 and institute
State first end and the second end that the second probe PIN2 is connected to the sampling capacitance Cx.
Specifically, the on-off circuit 200 includes the first triode Q1, first resistor R1, the electricity of second resistance R2 and the 3rd
Hinder R3；The colelctor electrode of the first triode Q1 is connected with the power supply VCC, the emitter stage of the first triode Q1 with it is described
First resistor R1 first end connection, the second end of the first resistor R1 is connected with the first end of the sampling capacitance Cx；Institute
The first end for stating second resistance R2 is connected with the base stage of the first triode Q1, the second end of the second resistance R2 with it is described
The drive end DRI connections of controller 100；The first end of the 3rd resistor R3 and the colelctor electrode of the first triode Q1 connect
Connect, the second end of the 3rd resistor R3 is connected with the base stage of the first triode Q1.Wherein, the first power supply VCC is that 5V is straight
Stream source.
In the present embodiment, the first triode Q1 is PNP type triode.On controller 100 after electricity operation, controller 100
In program run in accordance with the following steps：
S1, the drive end DRI output high level for setting controller 100；
S2, judge whether that water-level gauge detection need to be carried out；If so, the drive end DRI output low levels of setting controller 100；
If it is not, then return to step S1；
S3, timing 30ms (millisecond) detection time, more than returning again to step S1 after detection time.
It should be noted that the second probe PIN2 is in low potential all the time, it is 0V.Controller 100 drives the first triode
Q1 is turned on, when water level does not submerge the second probe PIN2, and the first probe PIN1 is in high potential, is 5V, now controller 100
Judge that water tank is in anhydrous state.When water level submerges the second probe PIN2, the voltage on the first probe PIN1 is equal to first and visited
Resistance between pin PIN1 and the second probe PIN2 and the result after first resistor R1 partial pressures, the first probe PIN1 current potential are low
In 2V, now controller 100 judges that water tank is in and has water state.
Further, the probe-type water level detection circuit also includes the 4th resistance R4, the first of the 4th resistance R4
End is connected with the first end of the sampling capacitance Cx, the second end of the 4th resistance R4 and the sampling end DET of the control end
Connection.4th resistance R4 is used to carry out current limliting to the sampled signal inputted to controller 100, to prevent electric current is excessive from burning out control
Device 100 processed.
In the present embodiment, the first probe PIN1 and the second probe PIN2 sample stainless steel material.Stainless steel
Material is with respect to other precious metals metal such as platinum, silver, with lower-cost advantage.
Technical solutions of the utility model effectively reduce the dirt that probe electrolysis is brought using the method for intermittent water level detecting
Dye, and extend the service life of probe.
The utility model also proposes a kind of Level monitor, and the Level monitor includes probe-type water as described above
Position detection circuit, the concrete structure of the probe-type water level detection circuit is with reference to above-described embodiment, because this Level monitor is adopted
With whole technical schemes of above-mentioned all embodiments, thus at least the technical scheme with above-described embodiment brought it is all
Beneficial effect, this is no longer going to repeat them.
Preferred embodiment of the present utility model is the foregoing is only, the scope of the claims of the present utility model is not thereby limited,
It is every under inventive concept of the present utility model, the equivalent structure made using the utility model specification and accompanying drawing content is become
Change, or directly/be used in other related technical fields indirectly and be included in scope of patent protection of the present utility model.
Claims (5)
1. a kind of probe-type water level detection circuit, it is characterised in that the probe-type water level detection circuit includes controller, first
Probe, the second probe, power supply, on-off circuit and sampling capacitance；
The controller includes sampling end and drive end；The power supply is connected with the input of the on-off circuit, the switch
The controlled end of circuit is connected with the drive end of the controller, the output end of the on-off circuit and the first of the sampling capacitance
End connection, the second end ground connection of the sampling capacitance；The sampling end of the controller is connected with the second end of the sampling capacitance；
First probe and second probe are connected to first end and the second end of the sampling capacitance；
When carrying out water level detecting, first probe and second probe separation are arranged at testing liquid, the control
Device drives the on-off circuit conducting, and the power supply is powered to the first probe and the second probe；The controller is to sampling capacitance
Voltage sample obtaining sampled voltage, and judges water level conditions according to the sampled voltage；
When not detected to water level, the controller drives the on-off circuit shut-off, and the power supply stops to described the
One probe and second probe are powered.
2. probe-type water level detection circuit as claimed in claim 1, it is characterised in that the on-off circuit includes the one or three pole
Pipe, first resistor, second resistance and 3rd resistor；The colelctor electrode of first triode is connected with the power supply, and described first
The emitter stage of triode is connected with the first end of the first resistor, the second end and the sampling capacitance of the first resistor
First end is connected；The first end of the second resistance is connected with the base stage of first triode, and the second of the second resistance
End is connected with the drive end of the controller；The first end of the 3rd resistor is connected with the colelctor electrode of first triode,
Second end of the 3rd resistor is connected with the base stage of first triode.
3. probe-type water level detection circuit as claimed in claim 2, it is characterised in that the probe-type water level detection circuit is also
Including the 4th resistance, the first end of the 4th resistance is connected with the first end of the sampling capacitance, and the of the 4th resistance
Two ends are connected with the sampling end of the control end.
4. probe-type water level detection circuit as claimed in claim 2, it is characterised in that first probe and second spy
Pin is sampled stainless steel material.
5. a kind of condensate tank of dehumidifier, it is characterised in that including the probe-type water level inspection as described in claim 1-4 any one
Slowdown monitoring circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620925998.0U CN206399502U (en) | 2016-08-23 | 2016-08-23 | Probe-type water level detection circuit and condensate tank of dehumidifier |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620925998.0U CN206399502U (en) | 2016-08-23 | 2016-08-23 | Probe-type water level detection circuit and condensate tank of dehumidifier |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206399502U true CN206399502U (en) | 2017-08-11 |
Family
ID=59508166
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620925998.0U Active CN206399502U (en) | 2016-08-23 | 2016-08-23 | Probe-type water level detection circuit and condensate tank of dehumidifier |
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| CN (1) | CN206399502U (en) |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108427339A (en) * | 2018-02-07 | 2018-08-21 | 厦门芯阳科技股份有限公司 | A kind of stage body flatiron boiler water level state detection circuit and method |
| CN110346014A (en) * | 2019-07-28 | 2019-10-18 | 北京交通大学 | A kind of city tunnel ponding warning device |
| CN112325977A (en) * | 2020-11-02 | 2021-02-05 | 深圳市朗科智能电气股份有限公司 | Device and method for detecting water quantity of water tank |
| CN112515587A (en) * | 2020-10-23 | 2021-03-19 | 深圳市银星智能科技股份有限公司 | Liquid level state detection method, water tank assembly and robot |
| CN112857506A (en) * | 2021-03-02 | 2021-05-28 | 河南牧原智能科技有限公司 | Liquid level monitoring system |
| CN113217445A (en) * | 2021-05-07 | 2021-08-06 | 中山亿联智能科技有限公司 | Water cooling tower fan and water level detection circuit |
| CN113639826A (en) * | 2021-07-20 | 2021-11-12 | 山东大学 | Septic tank liquid level overflow detection device |
| CN113854816A (en) * | 2021-09-22 | 2021-12-31 | 华帝股份有限公司 | Evaporator water level detection method and circuit and kitchen electrical equipment |
| WO2022116455A1 (en) * | 2020-12-03 | 2022-06-09 | 淮安特创科技有限公司 | Liquid medicine leakage alarm monitoring method and device |
| CN115113283A (en) * | 2022-07-20 | 2022-09-27 | 深圳奇迹智慧网络有限公司 | Water logging check out test set |
| CN120057228A (en) * | 2025-02-27 | 2025-05-30 | 深圳市拓普泰克技术股份有限公司 | Underwater robot and water inflow detection method |
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2016
- 2016-08-23 CN CN201620925998.0U patent/CN206399502U/en active Active
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108427339A (en) * | 2018-02-07 | 2018-08-21 | 厦门芯阳科技股份有限公司 | A kind of stage body flatiron boiler water level state detection circuit and method |
| CN110346014A (en) * | 2019-07-28 | 2019-10-18 | 北京交通大学 | A kind of city tunnel ponding warning device |
| CN112515587A (en) * | 2020-10-23 | 2021-03-19 | 深圳市银星智能科技股份有限公司 | Liquid level state detection method, water tank assembly and robot |
| CN112515587B (en) * | 2020-10-23 | 2023-09-26 | 深圳银星智能集团股份有限公司 | Liquid level state detection method, water tank assembly and robot |
| CN112325977A (en) * | 2020-11-02 | 2021-02-05 | 深圳市朗科智能电气股份有限公司 | Device and method for detecting water quantity of water tank |
| WO2022116455A1 (en) * | 2020-12-03 | 2022-06-09 | 淮安特创科技有限公司 | Liquid medicine leakage alarm monitoring method and device |
| CN112857506A (en) * | 2021-03-02 | 2021-05-28 | 河南牧原智能科技有限公司 | Liquid level monitoring system |
| CN113217445A (en) * | 2021-05-07 | 2021-08-06 | 中山亿联智能科技有限公司 | Water cooling tower fan and water level detection circuit |
| CN113639826A (en) * | 2021-07-20 | 2021-11-12 | 山东大学 | Septic tank liquid level overflow detection device |
| CN113854816A (en) * | 2021-09-22 | 2021-12-31 | 华帝股份有限公司 | Evaporator water level detection method and circuit and kitchen electrical equipment |
| CN115113283A (en) * | 2022-07-20 | 2022-09-27 | 深圳奇迹智慧网络有限公司 | Water logging check out test set |
| CN120057228A (en) * | 2025-02-27 | 2025-05-30 | 深圳市拓普泰克技术股份有限公司 | Underwater robot and water inflow detection method |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | "change of name, title or address" |
Address after: 403a, Skyworth Digital Building, Songbai Road, 2-5 / F, No.3, liaokeng No.3 Industrial Zone, Langxin community, Shiyan street, Bao'an District, Shenzhen, Guangdong 518000 Patentee after: Shenzhen toptec Technology Co.,Ltd. Address before: 518000 second floor to sixth floor, No.3, Yaokeng third industrial zone, Baoyuan community, Shiyan street, Bao'an District, Shenzhen City, Guangdong Province; 2 / F and 3 / F, building 5, huilixing Industrial Park, Yaokeng, Langxin community, Shiyan street, have business premises for production and business activities Patentee before: SHENZHEN TOP-TEK ELECTRONICS Co.,Ltd. |
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| CP03 | "change of name, title or address" |