CN109717813A - Tableware washing equipment - Google Patents
Tableware washing equipment Download PDFInfo
- Publication number
- CN109717813A CN109717813A CN201910203488.0A CN201910203488A CN109717813A CN 109717813 A CN109717813 A CN 109717813A CN 201910203488 A CN201910203488 A CN 201910203488A CN 109717813 A CN109717813 A CN 109717813A
- Authority
- CN
- China
- Prior art keywords
- probe
- cleaning solution
- liquid level
- level
- liquid
- 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.)
- Withdrawn
Links
- 238000005406 washing Methods 0.000 title abstract description 21
- 239000007788 liquid Substances 0.000 claims abstract description 89
- 238000001514 detection method Methods 0.000 claims abstract description 31
- 239000000523 sample Substances 0.000 claims description 90
- 238000004140 cleaning Methods 0.000 claims description 73
- 238000005086 pumping Methods 0.000 claims description 12
- 238000009434 installation Methods 0.000 claims description 10
- 238000006073 displacement reaction Methods 0.000 claims description 3
- 238000005201 scrubbing Methods 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 5
- 238000004851 dishwashing Methods 0.000 description 7
- 238000013461 design Methods 0.000 description 5
- 239000003599 detergent Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 239000003990 capacitor Substances 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 238000007689 inspection Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000035945 sensitivity Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 1
- 230000036461 convulsion Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004900 laundering Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
Landscapes
- Devices For Medical Bathing And Washing (AREA)
Abstract
The invention provides a tableware washing device. Tableware washing equipment, including washing liquid containing structure, washing liquid containing structure has the washing liquid and holds the chamber, washing liquid containing structure still has liquid level detection part, liquid level prompt component, liquid level detection part is used for detecting the washing liquid level, liquid level detection part with liquid level prompt component electric connection works as when the washing liquid level is less than the lower limit liquid level, liquid level detection part output first signal extremely liquid level prompt component. According to the tableware washing equipment disclosed by the invention, a user can be reminded when the liquid level of the washing liquid in the washing liquid accommodating cavity is lower than the lower limit liquid level, and the washing effect of the tableware washing equipment is ensured.
Description
Technical field
The invention belongs to dishwashing detergent technical fields, and in particular to a kind of warewashing equipment.
Background technique
Dish-washing machine currently on the market is both needed to using detergent or the powder that washes the dishes, and most of is to launch once to use once,
It is extremely inconvenient for a user, so that promoting the addition manner of detergent to be changed into once launches nonexpondable mode.
It is furnished with a cleaning solution accommodating chamber in dish-washing machine, can disposably launches more cleaning solution, when the every task of dish-washing machine
Enter washing zone by dosage needed for pumping dispensing automatically, and then realizes primary dispensing, it is multiple to wash.But current cleaning solution holds
Chamber is received since content exposure is not enough, on the one hand leads to that liquid level cannot be observed when launching cleaning solution and showing for overflow occurs
As making troubles to user；On the other hand, when cleaning solution is used up after dish-washing machine operation a period of time, due to lacking necessity
User's prompt, lacking dish-washing machine in subsequent laundering process necessary cleaning solution and then causes washing effect very poor.
Summary of the invention
Therefore, it the technical problem to be solved in the present invention is that providing a kind of warewashing equipment, can be accommodated in cleaning solution
Cleaning solution liquid level in chamber reminds user when being lower than bottom limit level, ensure that the washing effect of warewashing equipment.
To solve the above-mentioned problems, the present invention provides a kind of warewashing equipment, including cleaning solution contained structure, described to wash
Liquid contained structure is washed with cleaning solution accommodating chamber, the cleaning solution contained structure also has level sensing component, liquid level prompting part
Part, for the level sensing component for detecting cleaning solution liquid level, the level sensing component and the liquid level tip parts are electrical
Connection, when the cleaning solution liquid level is lower than bottom limit level, level sensing component output the first signal to the liquid level is mentioned
Show component.
Preferably, the liquid level tip parts includes buzzer, display lamp, speech player, shows in screen at least
It is a kind of.
Preferably, the level sensing component includes the first probe, the second probe, circuit board, the end of first probe
End has the first detection probe, and the end of second probe has the second detection probe, first detection probe with it is described
Second detection probe is in the level height where the bottom limit level, has the first potentiometric detection electricity on the circuit board
Road, first probe and the second probe are electrically connected with first potential detecting circuit respectively.
Preferably, the level sensing component further includes third probe, and the end of the third probe is detected with third
Probe, the third detection probe be in the level height where cleaning solution upper limit level, also with the on the circuit board
Two potential detecting circuits, first probe and the third probe are electrically connected with second potential detecting circuit respectively,
When the cleaning solution liquid level reaches upper limit level, the level sensing component exports second signal to the liquid level prompting part
Part.
Preferably, screw thread connects between first probe, the second probe, third probe and the cleaning solution contained structure
It connects.
Preferably, there is the warewashing equipment cleaning solution contained structure described in liner to be shaped in the liner
On.
Preferably, the warewashing equipment further includes pumping installations, and the pumping installations has inlet and liquid outlet,
The inlet and cleaning solution accommodating chamber perforation connect, and the scrubbing space of the liquid outlet and the warewashing equipment passes through
Lead to and connects.
Preferably, the pumping installations includes constant displacement pump.
Preferably, the cleaning solution contained structure, which has, throws liquid mouth, is fitted with sealed piece in the throwing liquid mouth.
Preferably, it is slidably connected between the sealed piece and the throwing liquid mouth.
A kind of warewashing equipment provided by the invention, when the cleaning solution is consumed under the bottom limit level,
The level sensing component issues the first signal and enables the liquid level tip parts at this time, when the liquid level tip parts includes bee
When ring device, speech player, then issues corresponding buzzer or corresponding voice prompting user adds cleaning solution in time, work as institute
When to state liquid level tip parts include display lamp, then issues corresponding bright prompt user and add cleaning solution in time, when the liquid level
When tip parts includes display screen, then it can be sent out corresponding tip of the text prompt user and add cleaning solution in time, it can
See, due to using the technical solution, can remind and use when the cleaning solution liquid level in cleaning solution accommodating chamber is lower than bottom limit level
Family ensure that the washing effect of warewashing equipment.
Detailed description of the invention
Fig. 1 is the partial structure diagram of the warewashing equipment of the embodiment of the present invention；
Fig. 2 is the schematic illustration of the first potential detecting circuit of the warewashing equipment of the embodiment of the present invention；
Fig. 3 is the schematic illustration of the second potential detecting circuit of the warewashing equipment of the embodiment of the present invention.
Appended drawing reference indicates are as follows:
1, cleaning solution contained structure；11, cleaning solution accommodating chamber；12, bottom limit level；13, upper limit level；21, the first probe；
22, the second probe；23, circuit board；24, third probe；3, liner；4, pumping installations；5, sealed piece.
Specific embodiment
In conjunction with referring to shown in Fig. 1 to Fig. 3, according to an embodiment of the invention, providing a kind of warewashing equipment, including wash
Liquid contained structure 1, the cleaning solution contained structure 1 have cleaning solution accommodating chamber 11, and the cleaning solution contained structure 1 also has liquid
Position detection part, liquid level tip parts, the level sensing component for detecting cleaning solution liquid level, the level sensing component with
The liquid level tip parts is electrically connected, and when the cleaning solution liquid level is lower than bottom limit level 12, the level sensing component is defeated
To the liquid level tip parts, the liquid level tip parts includes buzzer, display lamp, speech player, shows the first signal out
At least one of display screen curtain, it is to be understood that the liquid level tip parts is for example with corresponding circuit board, the circuit
Plate has corresponding circuit enable end, and the enable end and first signal are electrically connected, when the level sensing component is defeated
When the first signal out is consistent with the enabled operating condition of the enable end, the liquid level tip parts issues corresponding prompt letter
Breath.Using the technical solution, when the cleaning solution is consumed under the bottom limit level 12, the level sensing portion at this time
Part issues the first signal and enables the liquid level tip parts, when the liquid level tip parts includes buzzer, speech player,
It then issues corresponding buzzer or corresponding voice prompting user adds cleaning solution in time, when the liquid level tip parts includes
When display lamp, then issues corresponding bright prompt user and add cleaning solution in time, when the liquid level tip parts includes display screen
When curtain, then it can be sent out corresponding tip of the text prompt user and add cleaning solution in time, it is seen then that due to using the technology
Scheme can remind user when the cleaning solution liquid level in cleaning solution accommodating chamber is lower than bottom limit level, ensure that dishwashing detergent is set
Standby washing effect.
The level sensing component can for example use more traditional pressure sensor, specifically, can be by pressure
Sensor is set to the bottom position of the cleaning solution accommodating chamber 11, the output voltage of the pressure sensor (or electric current etc.
Electrical parameter) etc. can with the amount of the cleaning solution in the cleaning solution accommodating chamber 11 occur linear correlation, thus realize be washed to described
The real-time observation of cleaning solution liquid level in liquid accommodating chamber 11 is washed, still, due to the appearance of the cleaning solution accommodating chamber 11 under normal circumstances
Amount design is not too large, this keeps pressure change caused by the variation of cleaning solution liquid level relatively small, this requires pressure sensing utensil
There is higher sensitivity, the purchase cost of with higher sensitivity pressure sensor is excessively high, makes the overall cost of warewashing equipment
Rise, this is by the serious cost performance for reducing warewashing equipment, therefore, in order to avoid this situation, it is preferable that described
Level sensing component includes the first probe 21, the second probe 22, circuit board 23, and the end of first probe 21 has the first inspection
Probing head, the end of second probe 22 have the second detection probe, and first detection probe and second detection are visited
Head has the first potential detecting circuit in the level height where the bottom limit level 12 on the circuit board 23, described
First probe 21 and the second probe 22 are electrically connected with first potential detecting circuit respectively, first potential detecting circuit
Such as can be designed to current potential sample circuit as shown in Figure 2, specifically, first potential detecting circuit has and described the
The first end that one probe 21 is electrically connected, and the second end being electrically connected with second probe 22, the first current potential inspection
Slowdown monitoring circuit further includes the first level output end and power supply end (5V is shown in Fig. 2) for issuing first signal,
First resistor R1, the first end and first level output end are provided between the power supply end and the first end
Between second resistance R2 is set, second end ground connection, the second end is grounded by capacitor C1, as a result, when cleaning solution is lower than
When the bottom limit level 12, the second detection probe of the first detection probe of first probe 21 and second probe 22 is all
With cleaning solution disengage namely first probe 21 and second probe 22 between open circuit, at this point, first level
Output end is high level, and the high level namely first signal will enable the liquid level tip parts at this time and make its hair
Prompt information out informs that user's amount of liquor is very few and needs to add；When cleaning solution is higher than the bottom limit level 12, described first
First detection probe of probe 21 is all contacted with cleaning solution namely described first with the second detection probe of second probe 22
It is connected between probe 21 and second probe 22 by the cleaning solution, at this point, first level output end is low level, no
It can enable the liquid level tip parts and issue prompt information.By the way of first probe 21, the second probe 22, Neng Gouji
The design cost of big reduction detection part, improves the cost performance of the warewashing equipment, and design principle is simple and easy, due to
Using the circuit design principle being the most directly switched on or off, keep the reliability of the level sensing component higher.
Further, the level sensing component further includes third probe 24, and the end of the third probe 24 has the
Three detection probes, the third detection probe are in the level height at 13 place of cleaning solution upper limit level, the circuit board 23
On also there is the second potential detecting circuit, first probe 21 and the third probe 24 respectively with second potentiometric detection
Circuit is electrically connected, and when the cleaning solution liquid level reaches upper limit level 13, the level sensing component output second signal is extremely
The liquid level tip parts.Similar to the design of first potential detecting circuit, second potential detecting circuit for example may be used
To be designed to current potential sample circuit as shown in Figure 3, specifically, second potential detecting circuit has and first probe
21 first ends being electrically connected, and the second end being electrically connected with the third probe 24, first potential detecting circuit
It further include the second electrical level output end for issuing the second signal and power supply end (5V is shown in Fig. 3), the electricity
It is provided with first resistor R1 between source supply side and the first end, is set between the first end and first level output end
Second resistance R2, the second end ground connection are set, the second end is grounded by capacitor C1, as a result, when cleaning solution is higher than on described
When limiting liquid level 13, the third detection probe of the first detection probe of first probe 21 and the third probe 24 all with washing
Short circuit between liquid contact namely first probe 21 and the third probe 24, at this point, first level output end is low
Level, the low level namely the second signal will enable the liquid level tip parts at this time and it made to issue prompt information,
Inform that user's amount of liquor excessively needs to stop adding；When cleaning solution is lower than the upper limit level 13, the third probe 24
Third detection probe and cleaning solution disengage namely first probe 21 and second probe 22 between be switched off,
At this point, the second electrical level output end is high level, the liquid level tip parts cannot be enabled and issue prompt information.
Preferably, between first probe 21, the second probe 22, third probe 24 and the cleaning solution contained structure 1
It is threadedly coupled, it is to be understood that be configured with corresponding threaded hole on the corresponding position of the cleaning solution contained structure 1, in this way
First probe 21, the second probe 22, the maintenance process of third probe 24 after failure can be facilitated.Best, institute
It states warewashing equipment to be shaped on the liner 3 with cleaning solution contained structure 1 described in liner 3, which prevent adopt
It needs to carry out assembling brought trouble with the liner 3 with individual cleaning solution contained structure 1, it is even more important that one
Molding mode makes there is no gap is cooperated between the cleaning solution contained structure 1 and the liner 3, in this way, it is therefore prevented that washing
The leakage of liquid.
The warewashing equipment further includes pumping installations 4, and the pumping installations 4 has inlet and liquid outlet, described
Inlet and the cleaning solution accommodating chamber 11 perforation connect, and the scrubbing space of the liquid outlet and the warewashing equipment penetrates through
Connection, the pumping installations 4 for example may include constant displacement pump.The pumping installations 4 is preferably disposed on the outer wall of the liner 3
On.Further, the cleaning solution contained structure 1, which has, throws liquid mouth, is fitted with sealed piece 5, the envelope in the throwing liquid mouth
It is slidably connected between mouth part 5 and the throwing liquid mouth, specifically, being provided with sliding axle between the sealed piece 5 and the throwing liquid mouth
It holds, wherein the sealed piece 5 is plugged in the inner ring of the sliding bearing, the outer ring of the sliding bearing is then set to the throwing
On the inner wall of liquid mouth, this mode makes the sealed piece 5 and described throw be slidably connected between liquid mouth realizing opposite to twitch
Meanwhile structural stability with higher.
Those skilled in the art will readily recognize that above-mentioned each advantageous manner can be free under the premise of not conflicting
Ground combination, superposition.
The above is merely preferred embodiments of the present invention, be not intended to limit the invention, it is all in spirit of the invention and
Made any modifications, equivalent replacements, and improvements etc., should all be included in the protection scope of the present invention within principle.Above only
It is the preferred embodiment of the present invention, it is noted that for those skilled in the art, do not departing from this hair
Under the premise of bright technical principle, several improvements and modifications can also be made, these improvements and modifications also should be regarded as guarantor of the invention
Protect range.
Claims (10)
1. a kind of warewashing equipment, which is characterized in that including cleaning solution contained structure (1), the cleaning solution contained structure (1)
With cleaning solution accommodating chamber (11), the cleaning solution contained structure (1) also has level sensing component, liquid level tip parts, institute
It states level sensing component and is electrically connected for detecting cleaning solution liquid level, the level sensing component and the liquid level tip parts,
When the cleaning solution liquid level is lower than bottom limit level (12), level sensing component output the first signal to the liquid level is prompted
Component.
2. warewashing equipment according to claim 1, which is characterized in that the liquid level tip parts include buzzer,
At least one of display lamp, speech player, display screen.
3. warewashing equipment according to claim 1, which is characterized in that the level sensing component includes the first probe
(21), the second probe (22), circuit board (23), the end of first probe (21) have the first detection probe, and described second
The end of probe (22) has the second detection probe, and first detection probe and second detection probe are in the lower limit
In level height where liquid level (12), there is the first potential detecting circuit, first probe on the circuit board (23)
(21) it is electrically connected respectively with first potential detecting circuit with the second probe (22).
4. warewashing equipment according to claim 3, which is characterized in that the level sensing component further includes that third is visited
The end of needle (24), the third probe (24) has third detection probe, and the third detection probe is in the cleaning solution upper limit
In level height where liquid level (13), also there is the second potential detecting circuit, first probe on the circuit board (23)
(21) it is electrically connected respectively with second potential detecting circuit with the third probe (24), when the cleaning solution liquid level reaches
When upper limit level (13), the level sensing component exports second signal to the liquid level tip parts.
5. warewashing equipment according to claim 4, which is characterized in that first probe (21), the second probe
(22), it is threadedly coupled between third probe (24) and the cleaning solution contained structure (1).
6. warewashing equipment according to claim 1, which is characterized in that the warewashing equipment has liner (3)
The cleaning solution contained structure (1) is shaped on the liner (3).
7. warewashing equipment according to claim 1, which is characterized in that it further include pumping installations (4), the pumping dress
(4) are set with inlet and liquid outlet, the inlet and the cleaning solution accommodating chamber (11) perforation connect, the liquid outlet with
The scrubbing space of the warewashing equipment penetrates through connection.
8. warewashing equipment according to claim 7, which is characterized in that the pumping installations (4) includes constant displacement pump.
9. warewashing equipment according to claim 1, which is characterized in that the cleaning solution contained structure (1), which has, throws
Liquid mouth is fitted with sealed piece (5) in the throwing liquid mouth.
10. warewashing equipment according to claim 9, which is characterized in that the sealed piece (5) and the throwing liquid mouth it
Between be slidably connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910203488.0A CN109717813A (en) | 2019-03-18 | 2019-03-18 | Tableware washing equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910203488.0A CN109717813A (en) | 2019-03-18 | 2019-03-18 | Tableware washing equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109717813A true CN109717813A (en) | 2019-05-07 |
Family
ID=66301971
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910203488.0A Withdrawn CN109717813A (en) | 2019-03-18 | 2019-03-18 | Tableware washing equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109717813A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110353589A (en) * | 2019-07-15 | 2019-10-22 | 珠海格力电器股份有限公司 | Liquid level detection device, detection method and dish washing machine |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030205085A1 (en) * | 2001-12-31 | 2003-11-06 | Trn Business Trust | Level detector for a material in a container |
| CN1897863A (en) * | 2003-12-22 | 2007-01-17 | Bsh博施及西门子家用器具有限公司 | Dishwasher with a system for recognition of filling level |
| US20090235962A1 (en) * | 2006-09-19 | 2009-09-24 | Bsh Bosch Und Siemens Hausgerate Gmbh | Water-conducting domestic appliance comprising a detergent dosing system with fill level detection |
| CN102535112A (en) * | 2012-02-16 | 2012-07-04 | 海尔集团公司 | Circuit and method for detecting detergents |
| CN104947380A (en) * | 2014-03-26 | 2015-09-30 | 无锡小天鹅股份有限公司 | Detergent box assembly and washing machine comprising the same |
| CN105088689A (en) * | 2014-04-22 | 2015-11-25 | 无锡小天鹅股份有限公司 | Washing machine and washing agent storage system used for washing machine |
| CN205024472U (en) * | 2015-09-18 | 2016-02-10 | 南京创维家用电器有限公司 | Washing machine , detergent storage device and detergent liquid level multistage detection device |
| CN205398988U (en) * | 2016-03-28 | 2016-07-27 | 松下家电研究开发（杭州）有限公司 | Detergent feeding mechanism for washing machine |
| US20180044838A1 (en) * | 2015-04-27 | 2018-02-15 | Bitron S.P.A. | Device for sensing the electrical conductivity of a liquid, particularly that of the washing bath in a washing machine |
| CN209826624U (en) * | 2019-03-18 | 2019-12-24 | 珠海格力电器股份有限公司 | Tableware washing equipment |
-
2019
- 2019-03-18 CN CN201910203488.0A patent/CN109717813A/en not_active Withdrawn
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030205085A1 (en) * | 2001-12-31 | 2003-11-06 | Trn Business Trust | Level detector for a material in a container |
| CN1897863A (en) * | 2003-12-22 | 2007-01-17 | Bsh博施及西门子家用器具有限公司 | Dishwasher with a system for recognition of filling level |
| US20090235962A1 (en) * | 2006-09-19 | 2009-09-24 | Bsh Bosch Und Siemens Hausgerate Gmbh | Water-conducting domestic appliance comprising a detergent dosing system with fill level detection |
| CN102535112A (en) * | 2012-02-16 | 2012-07-04 | 海尔集团公司 | Circuit and method for detecting detergents |
| CN104947380A (en) * | 2014-03-26 | 2015-09-30 | 无锡小天鹅股份有限公司 | Detergent box assembly and washing machine comprising the same |
| CN105088689A (en) * | 2014-04-22 | 2015-11-25 | 无锡小天鹅股份有限公司 | Washing machine and washing agent storage system used for washing machine |
| US20180044838A1 (en) * | 2015-04-27 | 2018-02-15 | Bitron S.P.A. | Device for sensing the electrical conductivity of a liquid, particularly that of the washing bath in a washing machine |
| CN205024472U (en) * | 2015-09-18 | 2016-02-10 | 南京创维家用电器有限公司 | Washing machine , detergent storage device and detergent liquid level multistage detection device |
| CN205398988U (en) * | 2016-03-28 | 2016-07-27 | 松下家电研究开发（杭州）有限公司 | Detergent feeding mechanism for washing machine |
| CN209826624U (en) * | 2019-03-18 | 2019-12-24 | 珠海格力电器股份有限公司 | Tableware washing equipment |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110353589A (en) * | 2019-07-15 | 2019-10-22 | 珠海格力电器股份有限公司 | Liquid level detection device, detection method and dish washing machine |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| WO2014063422A1 (en) | Washing machine detergent remaining balance detection and display method | |
| CN108931283A (en) | A kind of level testing methods and device of sink | |
| CN107036675A (en) | Washing machine and its detergent liquid level detection device and method | |
| CN109717813A (en) | Tableware washing equipment | |
| CN108759977A (en) | A kind of immersion detection device | |
| JP2008527331A (en) | Conductivity measurement and monitoring system for fluid treatment systems | |
| CN105784056B (en) | Current control circuit and electrode level monitoring device | |
| CN208588774U (en) | Voltage detecting circuit based on capacitor charge and discharge and electric resistance partial pressure | |
| CN103134566A (en) | Water level detecting circuit based on capacitance principle | |
| CN209826624U (en) | Tableware washing equipment | |
| CN208270017U (en) | A kind of water-bath constant temperature oscillator low water level monitoring device | |
| CN220304623U (en) | Multi-gear contact type liquid level detection device | |
| CN207703299U (en) | A kind of non-contact capacitance induction multistage liquid level sensor | |
| CN108872693A (en) | A kind of voltage detecting circuit based on capacitor charge and discharge and electric resistance partial pressure | |
| CN209567852U (en) | It is a kind of for detecting the device of water purifier water shortage and raw water TDS value | |
| CN213987231U (en) | Two-wire TMR sensor, PCB and control circuit thereof | |
| CN204373737U (en) | Smart water position sensor control circuit | |
| CN110109792A (en) | USB device plug-pull detecting circuit under a kind of operating system off-line state | |
| CN104142024B (en) | A kind of water heater | |
| CN202562876U (en) | Real-time display type alcohol detector | |
| CN110353589A (en) | Liquid level detection device, detection method and dish washing machine | |
| CN209485479U (en) | A kind of liquid level detector being mounted on thermostat | |
| CN208464052U (en) | Moisture of skin measuring circuit and moisture of skin measuring instrument | |
| JP2004333240A (en) | Residual liquid quantity sensing device | |
| CN209027736U (en) | A kind of water purifier |
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 | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20190507 |
|
| WW01 | Invention patent application withdrawn after publication |