CN108797014A - Water-level detecting device and method and washing machine - Google Patents
Water-level detecting device and method and washing machine Download PDFInfo
- Publication number
- CN108797014A CN108797014A CN201810892051.8A CN201810892051A CN108797014A CN 108797014 A CN108797014 A CN 108797014A CN 201810892051 A CN201810892051 A CN 201810892051A CN 108797014 A CN108797014 A CN 108797014A
- Authority
- CN
- China
- Prior art keywords
- cavity
- water
- level detecting
- data
- detecting device
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 72
- 238000005406 washing Methods 0.000 title claims abstract description 49
- 238000000034 method Methods 0.000 title abstract description 11
- 238000004891 communication Methods 0.000 claims abstract description 20
- 238000004146 energy storage Methods 0.000 claims abstract description 19
- 239000011229 interlayer Substances 0.000 claims abstract description 7
- 239000000725 suspension Substances 0.000 claims description 11
- 238000001514 detection method Methods 0.000 claims description 6
- 238000012360 testing method Methods 0.000 claims description 6
- 239000010410 layer Substances 0.000 claims description 3
- 239000002184 metal Substances 0.000 claims description 3
- 238000009434 installation Methods 0.000 abstract description 8
- 238000006243 chemical reaction Methods 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 238000007689 inspection Methods 0.000 description 2
- 230000007774 longterm Effects 0.000 description 2
- 241001269238 Data Species 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 238000007792 addition Methods 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 208000002925 dental caries Diseases 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008520 organization Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 241000894007 species Species 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
- D06F34/00—Details of control systems for washing machines, washer-dryers or laundry dryers
- D06F34/14—Arrangements for detecting or measuring specific parameters
- D06F34/22—Condition of the washing liquid, e.g. turbidity
Abstract
The invention discloses a kind of water-level detecting device and method and washing machine, device includes seal cavity, piezo-electric device, energy-storage battery, pressure sensor, temperature sensor, wireless communication module and main controller；Piezo-electric device connects energy-storage battery；Pressure sensor, temperature sensor and wireless communication module are connect with main controller；Seal cavity is divided into the first cavity and the second cavity by interlayer；Piezo-electric device is installed in the first cavity, and energy-storage battery, pressure sensor, temperature sensor, wireless communication module and main controller are installed in the second cavity.On the one hand water-level detecting device rotates converting electrical energy by interior bucket and stores use, on the other hand module realizes that data communicate with washing machine main control module by radio communication, without being electrically connected with washing machine main control module and power supply module realization, it is used as a self-contained unit, simple installation, solves the inconvenient technical problem of existing water level sensor of washing machine installation, water level detecting is also more accurate.
Description
Technical field
The invention belongs to water level detecting technical fields, specifically, being to be related to a kind of water-level detecting device and method and wash
Clothing machine.
Background technology
Washing machine is needed to utilize water to be washed, rinsed etc., be needed according to washings in as washing household electrical appliances
How much selected different water levels, this needs detects water level information to accurately control washing course in washing course.
Water level detecting generally use water level sensor in existing washing machine carries out, in washing machine drum wall opening, by water level
Sensor realizes level measuring with detection environmental communication in bucket；Also, because water level sensor needs to pass through company with control mainboard
The acquisition transmission of automatically controlled and data is realized in wiring connection, and washing machine inner tub is rotation in washing process, this causes water level to pass
There is the inconvenient technical problem of installation in sensor.
Invention content
This application provides a kind of water-level detecting device and method and washing machines, solve existing water level sensor of washing machine peace
Fill inconvenient technical problem.
In order to solve the above technical problems, the application is achieved using following technical scheme：
It is proposed a kind of water-level detecting device, including seal cavity, piezo-electric device, energy-storage battery, pressure sensor, temperature sensing
Device, wireless communication module and main controller；The piezo-electric device connects the energy-storage battery；The pressure sensor, the temperature
Sensor and the wireless communication module are connect with the main controller；The seal cavity is divided into the first cavity and by interlayer
Two cavitys；The piezo-electric device is installed in first cavity, the energy-storage battery, the pressure sensor, the temperature
Sensor, the wireless communication module and the main controller are installed in second cavity.
Further, vacuum in first cavity.
Further, negative pressure in second cavity.
Further, the piezo-electric device includes holder, suspension beam and mass block；Described suspension beam one end is connected to described
On holder, the suspension beam other end connects the mass block；The suspension beam includes the first potsherd, the second potsherd and folder
The common electrode metal layer being placed between first potsherd and second potsherd.
Further, the upper surface of second cavity is elastic film.
Further, the seal cavity is a flat circular cavity.
Further, first cavity is divided into semicircle cavity or sectorial cavity by the interlayer.
It proposes a kind of level testing methods, is applied in above-mentioned water-level detecting device, including：Receive the pressure sensing
The pressure data and temperature data of device and temperature sensor detection；The pressure data is corrected based on the temperature data,
Obtain the chamber pressure data of second cavity；Water level is calculated based on the chamber pressure data；Wherein, the water level detecting
Data are placed at zero water level.
Further, it is based on the temperature data and corrects the pressure data, obtain the chamber pressure of second cavity
Data, specially：It is based onObtain the chamber pressure data of second cavity；Wherein,When being 0 DEG C
Pressure, temperature data described in t,For the coefficient of expansion of gas.
It proposes a kind of washing machine, including interior bucket, above-mentioned water-level detecting device is installed in the bottom of the interior bucket.
Compared with prior art, the advantages of the application and good effect is：The water-level detecting device and side that the application proposes
In method and washing machine, water-level detecting device is installed in washing machine inner tub bottom end, which has piezo-electric device and storage
Energy battery, piezo-electric device carry out energy conversion and by power storage in energy-storage battery between interior bucket rotation period so that energy storage electricity
Pond can be entire water-level detecting device power supply steadily in the long term during washing machine rotates or stops；The washing machine course of work
In, the pressure sensor and temperature sensor of water-level detecting device are according to obtaining pressure data and temperature data, controller then root
The chamber pressure data that its second cavity is calculated according to pressure data and temperature data are calculated according to chamber pressure data in washing machine
The water level of bucket, and waterlevel data is sent to washing machine main control module by its wireless communication module so that washing machine being capable of root
Washing procedure is accurately controlled according to waterlevel data；On the one hand the water-level detecting device that the application proposes rotates conversion electricity by interior bucket
Can and store use, on the other hand module is communicated with washing machine main control module realization data by radio communication, without with
Washing machine main control module and power supply module realize electrical connection, are used as a self-contained unit, simple installation solves existing wash
The inconvenient technical problem of clothing machine water level sensor installation.
After the detailed description of the application embodiment is read in conjunction with the figure, other features and advantages of the application will become more
Add clear.
Description of the drawings
Fig. 1 is the Organization Chart for the water-level detecting device that the application proposes；
Fig. 2 is the structure chart for the water-level detecting device that the application proposes；
Fig. 3 is the structure chart for the piezo-electric device that the application proposes；
Fig. 4 is the flow chart for the level testing methods that the application proposes.
Specific implementation mode
The specific implementation mode of the application is described in more detail below in conjunction with the accompanying drawings.
The application proposes a kind of water-level detecting device, can be independently mounted as a whole in application environment as one and realize inspection
It surveys, and without being electrically connected realization power supply and data transmission with other power supply modules and main control module, specifically, such as Fig. 1 institutes
Show, including seal cavity 1, piezo-electric device 2, energy-storage battery 3, pressure sensor 4, temperature sensor 5,6 and of wireless communication module
Main controller 7；Piezo-electric device 2 connects energy-storage battery 3；Pressure sensor 4, temperature sensor 5 and wireless communication module 6 are and master control
Device 7 connects.Energy-storage battery 3 is used to power for entire water-level detecting device.
As shown in Fig. 2, seal cavity 1 is divided by interlayer 10 for the first cavity 11 and the second cavity 12；Piezo-electric device is installed on
11 in first cavity, energy-storage battery, pressure sensor, temperature sensor, wireless communication module and main controller are installed on the second chamber
In body 12.
As shown in Figures 2 and 3, piezo-electric device 2 includes holder 21, suspension beam 22 and mass block 23；22 one end of suspension beam connects
It connects on the stent 21,22 other end quality of connection block 23 of suspension beam；Suspension beam 22 includes the first potsherd 221, the second potsherd
222 and the common electrode metal layer 223 that is folded between the first potsherd 221 and the second potsherd 222；The piezo-electric device is based on
Piezoelectric ceramics principle is installed on washing machine inner tub bottom, with the rotation of interior bucket, piezo-electric device when it is applied to washing machine
Electric energy is converted mechanical energy into, electric energy is stored in energy-storage battery, and energy-storage battery is then that entire water-level detecting device is powered.
The energy storage of energy-storage battery can be entire water level detecting dress steadily in the long term during washing machine rotates or stops
Set power supply；In the washing machine course of work, the pressure sensor and temperature sensor of water-level detecting device are according to acquisition pressure data
And temperature data, controller then calculates the chamber pressure data of its second cavity according to pressure data and temperature data, according to chamber
Body pressure data calculates the water level of washing machine inner tub, and waterlevel data is sent to washing machine master control by its wireless communication module
Module so that washing machine can accurately control washing procedure according to waterlevel data；The water-level detecting device that the application proposes, a side
Face rotates converting electrical energy by interior bucket and stores use, and on the other hand module is realized with washing machine main control module by radio communication
Data communicate, and without being electrically connected with washing machine main control module and power supply module realization, use, pacify as a self-contained unit
Dress is easy, solves the inconvenient technical problem of existing water level sensor of washing machine installation.
It will be designed as vacuum in the first cavity 11 to improve the swing efficiency of overarm arm 22, in the embodiment of the present application, to
Promote the energy conversion rate of piezo-electric device.
The upper surface of second cavity 12 is designed using elastic film, when the second cavity upper surface because SEA LEVEL VARIATION generates pressure
Qiang Shi, which causes the second inside cavity pressure to change, so that the main controller of water-level detecting device being capable of basis
Temperature and pressure in cavity calculate the chamber pressure data of the second cavity upper surface, to be turned based on the chamber pressure data
The waterlevel data for the interior bucket that swaps out.
As shown in Fig. 2, in the embodiment of the present application, seal cavity 1 is a flat circular cavity, and interlayer 10 is by the first chamber
Body is divided into semicircle cavity or sectorial cavity, ensures that overarm arm can free deflection.It may be designed as bearing in second cavity 12
Pressure, to improve the sensitivity of pressure sensor.
In the prior art, after generally use pressure sensor detection pressure data, according to pressure data water level calculation data,
Without considering influence of the gas temperature for pressure, this can cause water level detecting inaccurate, to influence the control of washing procedure
Accuracy processed is based on this, during the application is implemented, by the way of pressure sensor and temperature sensor cooperated computing actual pressure
Water level is calculated, specifically, the application discloses a kind of level testing methods, as shown in figure 4, including
Step S41：Receive the pressure data and temperature data of pressure sensor and temperature sensor detection.
Washing machine starts water filling after starting washing procedure, the pressure sensor in water-level detecting device and temperature sensor inspection
Survey hydraulic pressure data and temperature data；
Step S42：Pressure data is corrected based on temperature data, obtains the chamber pressure data of the second cavity.
Pressure data is modified by main controller using temperature data, obtains rising in water level detecting due to water level
The chamber pressure data of second cavity elastic film surface action of device；Specifically, being based on Charles' law, useObtain the chamber pressure data of the second cavity；Wherein,Pressure when being 0 DEG C, t temperature datas,For
The coefficient of expansion of gas,Unrelated with gaseous species and temperature range, usual value is 1/273.
Step S43：Water level is calculated based on chamber pressure data.
Inner bucket water position is calculated according to the relationship between pressure and water level.Wherein, water level detecting data are placed at zero water level.
Step S44：Waterlevel data is sent to main equipment, such as washing machine main control module described herein so that wash
Clothing machine can accurately control washing course according to waterlevel data.
Based on water-level detecting device and method set forth above, the application proposes that a kind of washing machine, the washing machine include interior
Bucket, the water-level detecting device stated is installed in bottom of the barrel, using level testing methods detection inner bucket water position set forth above.Water
On the one hand level detecting apparatus rotates converting electrical energy by interior bucket and stores use, on the other hand module and laundry by radio communication
Machine main control module realizes data communication, without being electrically connected with washing machine main control module and power supply module realization, as one
Self-contained unit uses, simple installation, solves the inconvenient technical problem of existing water level sensor of washing machine installation；Using temperature number
According to the mode for correcting pressure data so that the pressure data detected is more accurate, and the water level to calculate is also more accurate.
It should be noted that it is limitation of the present invention that above description, which is not, the present invention is also not limited to the example above,
The variations, modifications, additions or substitutions that those skilled in the art are made in the essential scope of the present invention, are also answered
It belongs to the scope of protection of the present invention.
Claims (10)
1. water-level detecting device, which is characterized in that including seal cavity, piezo-electric device, energy-storage battery, pressure sensor, temperature
Sensor, wireless communication module and main controller；The piezo-electric device connects the energy-storage battery；It is the pressure sensor, described
Temperature sensor and the wireless communication module are connect with the main controller；
The seal cavity is divided into the first cavity and the second cavity by interlayer；The piezo-electric device is installed on first cavity
It is interior, the energy-storage battery, the pressure sensor, the temperature sensor, the wireless communication module and main controller peace
Loaded in second cavity.
2. water-level detecting device according to claim 1, which is characterized in that vacuum in first cavity.
3. water-level detecting device according to claim 2, which is characterized in that negative pressure in second cavity.
4. water-level detecting device according to claim 1, which is characterized in that the piezo-electric device includes holder, suspension beam
And mass block；On the bracket, the suspension beam other end connects the mass block for suspension beam one end connection；It is described outstanding
Beam is set to include the first potsherd, the second potsherd and be folded in shared between first potsherd and second potsherd
Electrode metal layer.
5. water-level detecting device according to claim 1, which is characterized in that the upper surface of second cavity is Thin Elastic
Film.
6. water-level detecting device according to claim 1, which is characterized in that the seal cavity is a flat circle
Cavity.
7. water-level detecting device according to claim 6, which is characterized in that first cavity is divided by the interlayer
Semicircle cavity or sectorial cavity.
8. level testing methods are applied to as in claim 1-7 any one of them water-level detecting devices, which is characterized in that
Including：
Receive the pressure data and temperature data of the pressure sensor and temperature sensor detection；
The pressure data is corrected based on the temperature data, obtains the chamber pressure data of second cavity；
Water level is calculated based on the chamber pressure data；
Wherein, the water level detecting data are placed at zero water level.
9. level testing methods according to claim 8, which is characterized in that correct the pressure based on the temperature data
Data obtain the chamber pressure data of second cavity, specially：
It is based onObtain the chamber pressure data of second cavity；Wherein,Pressure when being 0 DEG C, t institutes
Temperature data is stated,For the coefficient of expansion of gas.
10. washing machine, including interior bucket, which is characterized in that installed just like any one of claim 1-7 institutes in the bottom of the interior bucket
The water-level detecting device stated.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810892051.8A CN108797014A (en) | 2018-08-07 | 2018-08-07 | Water-level detecting device and method and washing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810892051.8A CN108797014A (en) | 2018-08-07 | 2018-08-07 | Water-level detecting device and method and washing machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108797014A true CN108797014A (en) | 2018-11-13 |
Family
ID=64079635
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810892051.8A Pending CN108797014A (en) | 2018-08-07 | 2018-08-07 | Water-level detecting device and method and washing machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108797014A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH119881A (en) * | 1997-06-26 | 1999-01-19 | Matsushita Electric Ind Co Ltd | Water level detecting device of washing machine |
| CN2795256Y (en) * | 2005-01-04 | 2006-07-12 | 杭州松下家用电器有限公司 | Washing machine using new water level controller |
| CN103171377A (en) * | 2013-03-26 | 2013-06-26 | 奇瑞汽车股份有限公司 | Passive sensor for tire pressure monitoring system |
| CN103741431A (en) * | 2014-01-08 | 2014-04-23 | 海信容声(广东)冰箱有限公司 | Washing machine and control method thereof |
| US20140268648A1 (en) * | 2013-03-14 | 2014-09-18 | Whirlpool Corporation | Domestic appliance including piezoelectric components |
| CN207600555U (en) * | 2017-12-15 | 2018-07-10 | 福建永泰县迅普科技有限公司 | A kind of pressure type water-depth measurement device |
-
2018
- 2018-08-07 CN CN201810892051.8A patent/CN108797014A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH119881A (en) * | 1997-06-26 | 1999-01-19 | Matsushita Electric Ind Co Ltd | Water level detecting device of washing machine |
| CN2795256Y (en) * | 2005-01-04 | 2006-07-12 | 杭州松下家用电器有限公司 | Washing machine using new water level controller |
| US20140268648A1 (en) * | 2013-03-14 | 2014-09-18 | Whirlpool Corporation | Domestic appliance including piezoelectric components |
| CN103171377A (en) * | 2013-03-26 | 2013-06-26 | 奇瑞汽车股份有限公司 | Passive sensor for tire pressure monitoring system |
| CN103741431A (en) * | 2014-01-08 | 2014-04-23 | 海信容声(广东)冰箱有限公司 | Washing machine and control method thereof |
| CN207600555U (en) * | 2017-12-15 | 2018-07-10 | 福建永泰县迅普科技有限公司 | A kind of pressure type water-depth measurement device |
Non-Patent Citations (2)
| Title |
|---|
| 谢中: "《物理学》", vol. 1, 30 June 1964, 人民卫生出版社, pages: 121 - 122 * |
| 魏怀鹏: "《近代物理实验》", vol. 1, 31 August 2010, 天津大学出版社, pages: 127 - 129 * |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103335769A (en) | Weak force measuring device for electric thruster | |
| CN105917204B (en) | Capacitive pressure measuring unit at least one temperature sensor | |
| CN107782411A (en) | Liquid level detector and liquid level detection method | |
| CN201497543U (en) | Capacitance induction type water temperature and level sensor | |
| CN104790179A (en) | Washing machine and method for conducting vibration detection, load weighing and cloth detecting for washing machine | |
| CN108797014A (en) | Water-level detecting device and method and washing machine | |
| CN202928654U (en) | Photographing type electronic water gauge device | |
| CN109990913A (en) | A kind of adjustable tail fins bottom sediment temperature detection device | |
| CN205879171U (en) | Static level gauge applied to liquid levels | |
| CN109238688A (en) | A kind of rotation detection device and its detection method | |
| CN209605967U (en) | A kind of adjustable tail fins bottom sediment temperature detection device | |
| CN206248166U (en) | A kind of water-level measuring post of portable type measuring level of ground water | |
| CN204422137U (en) | A kind of field digital pressure checking equipment | |
| CN210180511U (en) | Non-contact static pressure liquid level meter | |
| CN108891551B (en) | Water gauge detecting device for ship | |
| CN109029398B (en) | Supporting device of engineering measurement equipment in building construction | |
| CN111964753A (en) | High-pressure steam drum magnetic telescopic liquid level meter | |
| CN203672371U (en) | Quartz flexure accelerometer based dipmeter | |
| CN207540630U (en) | Wave absorption liquid level ruler based on hollow rigid tube body | |
| CN215866695U (en) | Test device for accelerating concrete carbonization | |
| CN206514917U (en) | A kind of contactless non-permeable material tank fill level detection means | |
| CN110906905B (en) | Ultra-high precision static level gauge | |
| CN103759710A (en) | Method for measuring obliquity angle of crank arm in crank arm inertia system and obliquity angle sensor | |
| CN104407170A (en) | Device and method for measuring relative motion of hull and waves | |
| CN210221984U (en) | Instrument and meter convenient to installation |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20181113 |
|
| RJ01 | Rejection of invention patent application after publication |