CN109645824A - Liquid level detection device and water dispenser with it - Google Patents
Liquid level detection device and water dispenser with it Download PDFInfo
- Publication number
- CN109645824A CN109645824A CN201710948287.4A CN201710948287A CN109645824A CN 109645824 A CN109645824 A CN 109645824A CN 201710948287 A CN201710948287 A CN 201710948287A CN 109645824 A CN109645824 A CN 109645824A
- Authority
- CN
- China
- Prior art keywords
- gas storage
- storage part
- liquid level
- detection device
- level detection
- 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.)
- Granted
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 119
- 238000001514 detection method Methods 0.000 title claims abstract description 51
- 239000007788 liquid Substances 0.000 title claims abstract description 43
- 230000000694 effects Effects 0.000 claims abstract description 8
- 239000012530 fluid Substances 0.000 claims abstract description 7
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 12
- 229910052710 silicon Inorganic materials 0.000 claims description 12
- 239000010703 silicon Substances 0.000 claims description 12
- 239000002184 metal Substances 0.000 claims description 3
- 239000010408 film Substances 0.000 description 14
- 238000005516 engineering process Methods 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 3
- 238000005086 pumping Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000035622 drinking Effects 0.000 description 2
- 239000003651 drinking water Substances 0.000 description 2
- 235000020188 drinking water Nutrition 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 239000010409 thin film Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47J—KITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
- A47J31/00—Apparatus for making beverages
- A47J31/44—Parts or details or accessories of beverage-making apparatus
- A47J31/4403—Constructional details
- A47J31/4457—Water-level indicators
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47J—KITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
- A47J31/00—Apparatus for making beverages
- A47J31/44—Parts or details or accessories of beverage-making apparatus
- A47J31/58—Safety devices
Landscapes
- Engineering & Computer Science (AREA)
- Food Science & Technology (AREA)
- Measurement Of Levels Of Liquids Or Fluent Solid Materials (AREA)
Abstract
The invention discloses a kind of liquid level detection device and with its water dispenser, the liquid level detection device includes: gas storage part, has air chamber in the gas storage part；Pressure detecting part, the pressure detecting part are connected with the gas storage part, and the pressure detecting part includes film, and the outside of the film is connected to the gas storage part, and the film is suitable for that electric signal output is deformed and be transformed under the effect of fluid to be measured pressure.Liquid level detection device according to the present invention, the accurate detection that can be realized by making pressure detecting part be connected with gas storage part to water level in water storage tank, easy to operate and service performance are good；In addition, being conducive to the accuracy for further increasing water level detecting by exporting deformation of the film under the effect of fluid to be measured pressure at electric signal.
Description
Technical field
The present invention relates to fields of home appliance technology, more particularly to a kind of liquid level detection device and with its drinking-water
Machine.
Background technique
In the related technology, since built at lower part of drinking machine bucket is placed in an opaque locker, in bucket whether
There is water to be not easy intuitively, and never a kind of perfect detection method for detecting surplus water in bucket, service performance are poor.
Summary of the invention
The present invention is directed at least solve one of the technical problems existing in the prior art.For this purpose, the present invention proposes a kind of liquid
The structure of level detecting apparatus, the liquid level detection device is simple and detection accuracy is high.
The present invention also proposes that a kind of water dispenser, the water dispenser are equipped with above-mentioned liquid level detection device.
The liquid level detection device of embodiment according to a first aspect of the present invention, comprising: gas storage part, the gas storage part is interior to have gas
Body cavity；Pressure detecting part, the pressure detecting part are connected with the gas storage part, and the pressure detecting part includes film, described thin
The outside of film is connected to the gas storage part, and the film is suitable for deforming under the effect of fluid to be measured pressure and is transformed into electric signal
Output.
Liquid level detection device according to an embodiment of the present invention can be realized pair by making pressure detecting part be connected with gas storage part
The accurate detection of water level in water storage tank, easy to operate and service performance are good；In addition, by by the film in fluid to be measured pressure
Deformation under effect is exported at electric signal, is conducive to the accuracy for further increasing water level detecting.
In addition, liquid level detection device according to the above embodiment of the present invention also has following additional technical characteristic:
According to one embodiment of present invention, the pressure detecting part is minute-pressure pressure sensor, and the minute-pressure pressure passes
Sensor includes: ontology, has gas passage in the ontology, and the inner end of the gas passage is equipped with silicon wafer, and the silicon wafer is opposite
Construct the film in the part of the gas passage, wherein the gas storage part be connected with the ontology and with the gas
Channel connection, the silicon wafer are recessed the cavity to be formed and be connected to the gas passage.
According to one embodiment of present invention, the gas storage part is tubulose, the open at one end and the other end of the gas storage part
It is closed by the pressure detecting part.
Further, the gas storage part is hose or metal tube.
Optionally, the gas storage part is elongate in shape extending in a straight line.
Further, the gas storage part is removably tightly connected with the ontology, and the gas storage part and the ontology
Grafting or socket.
The water dispenser of embodiment according to a second aspect of the present invention, comprising: body, the underpart have accommodating chamber, institute
Accommodating chamber is stated for storing water tank；Liquid level detection device, the liquid level detection device are located on the body, the liquid level inspection
Survey device is liquid level detection device described above, and the gas storage part is suitable for extending downwardly into water tank；Controller, the controller
It is transmitted with the pressure detecting part signal；Display part, the display part and the controller signals transmit.
Further, the gas storage part is adapted to extend into the position of the neighbouring accommodating chamber bottom wall.
Specifically, the water dispenser further includes the upper cover for covering water tank upper end opening, the upper cover and the storage
Gas part is connected.
Optionally, the display part includes at least one of display board, color indicator light, buzzer.
Further, the pressure detecting part and the controller, the display part and the buzzer are integrated into one
Body.
Additional aspect and advantage of the invention will be set forth in part in the description, and will partially become from the following description
Obviously, or practice through the invention is recognized.
Detailed description of the invention
Above-mentioned and/or additional aspect of the invention and advantage will become from the description of the embodiment in conjunction with the following figures
Obviously and it is readily appreciated that, in which:
Fig. 1 is a schematic diagram of liquid level detection device according to an embodiment of the present invention；
Fig. 2 is the schematic diagram of pressure detecting part in liquid level detection device according to an embodiment of the present invention.
Appended drawing reference: liquid level detection device 100, gas storage part 1, air chamber 11, pressure detecting part 2, ontology 21, gas passage
211, water tank 210, controller 220, display part 230, upper cover 240, buzzer 250.
Specific embodiment
The embodiment of the present invention is described below in detail, examples of the embodiments are shown in the accompanying drawings, wherein from beginning to end
Same or similar label indicates same or similar element or element with the same or similar functions.Below with reference to attached
The embodiment of figure description is exemplary, it is intended to is used to explain the present invention, and is not considered as limiting the invention.
In the description of the present invention, it is to be understood that, term " length ", "upper", "lower", "vertical", "horizontal",
The orientation or positional relationship of the instructions such as "top", "bottom", "inner", "outside" is to be based on the orientation or positional relationship shown in the drawings, and is only
For the convenience of describing the present invention and simplifying the description, rather than the device or element of indication or suggestion meaning must have specific side
Position is constructed and operated in a specific orientation, therefore is not considered as limiting the invention.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " installation ", " phase
Even ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or be integrally connected；It can
To be mechanical connection, it is also possible to be electrically connected；It can be directly connected, can also can be indirectly connected through an intermediary
Connection inside two elements.For the ordinary skill in the art, above-mentioned term can be understood at this with concrete condition
Concrete meaning in invention.
In the related technology, built at lower part of drinking machine mostly uses greatly remaining water in one of following manner detection bucket: first,
Using float-ball type dry-reed tube switch, float-ball type dry-reed tube switch is inserted into bucket bottom by the water pipe of a suitable length, however,
Above scheme is only able to detect a water level, and it is widely different to be influenced (height of such as bucket) lowest water level by structure, causes water
Waste, while cannot reflect the height of remaining water in bucket in real time.Second, jointly controlled using time and liquid level sensor, when
Water pump continuous work for a period of time after when water level does not reach setting water level in water dispenser another water tank, judge bucket without
Water, however, in the above method water pump can empty pump for a period of time, other than generating noise, the service life of water pump also by extreme influence,
If continuous someone's water during drawing water, the water level in water tank cannot reach design water level always, cause to judge by accident.
For this purpose, the present invention proposes a kind of liquid level detection device 100, water remaining in bucket can accurately be examined
It surveys, service performance is good.
The liquid level detection device 100 of embodiment according to a first aspect of the present invention is described with reference to the accompanying drawing.
As Figure 1-Figure 2, liquid level detection device 100 according to an embodiment of the present invention, comprising: gas storage part 1 and pressure
Detection piece 2.
Specifically, there is air chamber 11, and gas storage part 1 is suitable for deforming under external hydraulic action in gas storage part 1.Example
Such as, gas storage part 1 can deform under the effect of the pressure of outside liquid, and liquid here can be water etc..
Pressure detecting part 2 is connected with gas storage part 1.The air pressure in gas storage part 1 can be carried out by pressure detecting part 2 certain
Detection, so as to further detect remaining water in water tank 210.
Wherein, pressure detecting part 2 and gas storage part 1 are tightly connected, and the pressure of water is transmitted by gas storage part 1 in water tank 210
To pressure detecting part 2, the gas pressure sealed in gas storage part 1 is equal to the pressure of water in water tank 210, and because of the pressure and water of water
Height direct proportionality therefore can be realized by making pressure detecting part 2 be connected with gas storage part 1 to water in water tank 210
The accurate detection of position, and it is easy to operate.
Specifically, pressure detecting part 2 includes film, and the outside of the film is connected to gas storage part 1, for example, gas storage part 1
Inside can be equipped with the film, and at least part of gas storage part 1 can be set in the outside etc. of the film；And it is described thin
Film is suitable for that electric signal output is deformed and be transformed under the effect of fluid to be measured pressure.It is acted on as a result, by the film in pressure
Under deformation be conducive to the variation for more sensitively detecting pressure, to be conducive to improve the precision of pressure detecting and accurate
Degree.
Liquid level detection device 100 according to an embodiment of the present invention, can by making pressure detecting part 2 be connected with gas storage part 1
Realize the accurate detection to water level in water tank 210, easy to operate and service performance is good；In addition, by by the film in quilt
The deformation surveyed under fluid pressure effect is exported at electric signal, is conducive to the accuracy for further increasing water level detecting.
According to some embodiments of the present invention, pressure detecting part 2 is minute-pressure pressure sensor, is conducive to improve level sensing
Sensitivity.
Specifically, minute-pressure pressure sensor includes: ontology 21, has gas passage 211, gas passage 211 in ontology 21
Inner end be equipped with silicon wafer, for example, silicon wafer can be located at the top etc. of the inside of gas passage 211.Silicon wafer is relative to gas passage 211
Part construct film, that is to say, that opposite part can construct institute in the up-down direction for silicon wafer and gas passage 211
State film.
Wherein, gas storage part 1 is connected with ontology 21, and gas storage part 1 can be connected to gas passage 211, silicon wafer recess (example
Such as, the lower surface of silicon wafer is recessed upwards) form the cavity being connected to gas passage 211.As a result, in liquid level detection device 100
During actual use, be conducive to play the role of certain air-flow buffer by the cavity, to be conducive to make described thin
The deformation of film is more accurate, helps to improve the accuracy of pressure detecting.
Referring to Fig.1, according to one embodiment of present invention, gas storage part 1 is tubulose, the open at one end of gas storage part 1 and another
It is closed by pressure detecting part 2 at end.For example, the open at its lower end of gas storage part 1, and the upper end of gas storage part 1 can be by pressure detecting part 2
Closing.During liquid level detection device 100 is specifically used, be conducive to form closed air chamber 11 in gas storage part 1, protect
Demonstrate,prove the accuracy of water level detecting.
The invention is not limited thereto, gas storage part 1 or hose.For example, gas storage part 1 can be rubber hose etc..As a result,
Gas storage part 1 is not influenced by 210 difference in height of water tank, the water tank 210 suitable for various height specifications.Certainly,
Gas storage part 1 or metal tube etc..
Optionally, in conjunction with Fig. 1, gas storage part 1 is elongate in shape extending in a straight line.For example, gas storage part 1 is along linear extension
Strip straight tube-like etc..In this way, convenient for the accuracy of gas storage part 1 installed and advantageously ensure that detection.
Wherein, gas storage part 1 and ontology 21 are tightly connected gas passage 211, and gas storage part 1 and gas passage 211 is another
One end connection.For example, gas storage part 1 is connected to the lower end of gas passage 211.Thus, it is possible to guarantee the airtightness of air chamber 11, have
Conducive to the accuracy for improving water level detecting.
Further, gas storage part 1 is removably tightly connected with ontology 21 combined with Figure 1 and Figure 2, and gas storage part 1 and sheet
21 grafting of body or socket.Convenient for the installation and removal of gas storage part 1 and ontology 21, the accuracy of water level detecting is also advantageously improved.
For example, ontology 21 can be interference fitted with gas storage part 1.In addition, being also provided between ontology 21 and gas storage part 1 close
Sealing.Thereby, it is possible to be further ensured that the airtightness of air chamber 11, the accuracy of water level detecting is improved.
The water dispenser (not shown) of embodiment according to a second aspect of the present invention, comprising: body, liquid level detection device, control
Device 220 and display part 230.
Specifically, underpart has accommodating chamber, and accommodating chamber is for storing water tank 210；Liquid level detection device is located at machine
On body, liquid level detection device is above-mentioned liquid level detection device 100, and gas storage part 1 is suitable for extending downwardly into water tank 210 (for example, storage
The height of water tank 210 can be within 600mm)；Controller 220 and 2 signal of pressure detecting part transmit；Display part 230 and control
The transmission of 220 signal of device.As a result, by the way that the liquid level detection device 100 of above-mentioned first aspect embodiment is arranged on the water dispenser,
Remaining water in water tank 210 can be accurately detected, and pressure detecting part 2 can handle by controller 220 and detect
Pressure signal, and shown by display part 230, so as to intuitively show the water level in water tank 210.
Further, referring to Fig.1, gas storage part 1 is adapted to extend into the position of neighbouring accommodating chamber bottom wall.For example, gas storage part 1 is suitable
In the position for the bottom wall for extending adjacent to water tank 210.Thereby, it is possible to guarantee the accuracy of detection.
Specifically, water dispenser further includes upper cover 240, and upper cover 240 can be used for covering the opening of 210 upper end of water tank, on
Lid 240 is connected with gas storage part 1.For example, could be formed with the mounting hole passed through suitable for gas storage part 1 in upper cover 240, upper cover 240 with
Gas storage part 1 is connected by the mounting hole.It is convenient for fixing one end of gas storage part 1 by upper cover 240.
Pressure detecting part 2 stops the upper cover 240 to water tank 210.Pressure detecting part 2 can be provided surely by upper cover 240
Fixed support guarantees the accuracy of detection.
Certainly, under the premise of not influencing detection accuracy, the upper cover 240 of pressure detecting part 2 and water tank 210 can also be with
It is spaced apart.
Optionally, referring to Fig.1, display part 230 may include display board, color indicator light, at least one in buzzer 250
Kind.As a result, by selecting various forms of display parts 230, it is visually observed that and the water level pair in water tank 210 convenient for user
The information answered.
For example, display part 230 can be shown and water tank 210 in a manner of at least one of number, indicator light or pattern
The corresponding information of interior water.
Display part 230 can also include buzzer 250, and buzzer 250 and 220 signal of controller transmit, and controller 220 divides
It is not connected with pressure detecting part 2, buzzer 250 and display part 230 by transmission line.As a result, convenient for the nothing in water tank 210
It reminds user to change water with acousto-optic when water and controls water pump and stop pumping operation.
Further, pressure detecting part 2 can become one with controller 220, display part 230 and buzzer 250.
The length for being conducive to shorten line as a result, is convenient for wiring, and make the structure of water dispenser more compact.
The course of work of water dispenser according to an embodiment of the present invention is described in detail below with reference to Fig. 1 to Fig. 2.
Specifically, the pressure of water in water tank 210 is detected by pressure detecting part 2, by such as MCU of controller 220
(Micro Control Unit, micro control unit) processing, electric-controlled plate control, shows the height of water in water tank 210 on a display screen
Degree reminds user to change water and controls water pump stopping pumping operation when anhydrous with acousto-optic.
(tracheae can be a kind of hose to tracheae, and length is longer, is in bending in water tank 210, is applicable in different height
Water tank 210) and ontology 21 between be in sealing state, tracheae is inserted into 210 bottom of water tank, and the pressure of water passed to by tracheae
Pressure detecting part 2, the gas pressure sealed in tracheae are equal to the pressure of water in water tank 210, the pressure that pressure detecting part 2 will measure
Force value is transmitted to controller 220 such as electric-controlled plate, passes to display board by transmission line after handling by electric-controlled plate MCU, shows
Plate is with number or different colours indicator light or other pattern displaying water position status.When the SEA LEVEL VARIATION in water tank 210, tracheae
Pressure change therewith, when water level is reduced to tracheae lowest order, pressure detecting part 2 detects no pressure, and electric-controlled plate issues signal, bee
250 ring of device of ringing prompt water tank 210 is anhydrous, while display board shows corresponding state.
Water dispenser according to an embodiment of the present invention, it is accurate to monitor underneath type drinking-water using high-precision minute-pressure pressure sensor
Water level in machine water tank 210 is stopped pumping when anhydrous and user is reminded to replace water tank 210, can shown in real time using display screen
Show surplus water in water tank 210, and reminds user to replace water tank 210 by acousto-optic, while for example soft by gas storage part 1
The connection such as pipe, using longer hose, can not be influenced, the storage suitable for various height specifications by 210 difference in height of water tank
Water tank 210.So far the course of work of water dispenser according to an embodiment of the present invention is completed.
Other of water dispenser according to an embodiment of the present invention are constituted and are operated for those of ordinary skills
All be it is known, be not detailed herein.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show
The description of example " or " some examples " etc. means particular features, structures, materials, or characteristics described in conjunction with this embodiment or example
It is included at least one embodiment or example of the invention.In the present specification, schematic expression of the above terms need not
It must be directed to identical embodiment or example.Moreover, particular features, structures, materials, or characteristics described can be any
It can be combined in any suitable manner in a or multiple embodiment or examples.In addition, without conflicting with each other, the technology of this field
The feature of different embodiments or examples described in this specification and different embodiments or examples can be combined by personnel
And combination.
Although the embodiments of the present invention has been shown and described above, it is to be understood that above-described embodiment is example
Property, it is not considered as limiting the invention, those skilled in the art within the scope of the invention can be to above-mentioned
Embodiment is changed, modifies, replacement and variant.
Claims (11)
1. a kind of liquid level detection device characterized by comprising
Gas storage part, the gas storage part is interior to have air chamber；
Pressure detecting part, the pressure detecting part are connected with the gas storage part, and the pressure detecting part includes film, the film
Outside be connected to the gas storage part, and the film is suitable for deforming under the effect of fluid to be measured pressure and to be transformed into electric signal defeated
Out.
2. liquid level detection device according to claim 1, which is characterized in that the pressure detecting part is minute-pressure pressure sensing
Device, the minute-pressure pressure sensor include:
Ontology, the ontology is interior to have gas passage, and the inner end of the gas passage is equipped with silicon wafer, and the silicon wafer is relative to described
The part of gas passage constructs the film,
Wherein, the gas storage part is connected with the ontology and is connected to the gas passage, the silicon wafer be recessed to be formed with it is described
The cavity of gas passage connection.
3. liquid level detection device according to claim 1 or 2, which is characterized in that the gas storage part is tubulose, the gas storage
The open at one end and the other end of part are closed by the pressure detecting part.
4. liquid level detection device according to claim 3, which is characterized in that the gas storage part is hose or metal tube.
5. liquid level detection device according to claim 4, which is characterized in that the gas storage part is strip extending in a straight line
Shape.
6. liquid level detection device according to claim 2, which is characterized in that the gas storage part and the ontology are removably
It is tightly connected, and the gas storage part and the ontology grafting or socket.
7. a kind of water dispenser characterized by comprising
Body, the underpart have accommodating chamber, and the accommodating chamber is for storing water tank；
Liquid level detection device, the liquid level detection device are located on the body, and the liquid level detection device is to be wanted according to right
Liquid level detection device described in any one of 1-6 is sought, the gas storage part is suitable for extending downwardly into water tank；
Controller, the controller and the pressure detecting part signal transmit；
Display part, the display part and the controller signals transmit.
8. water dispenser according to claim 7, which is characterized in that the gas storage part is adapted to extend into the neighbouring accommodating chamber
The position of bottom wall.
9. water dispenser according to claim 7, which is characterized in that the water dispenser further includes for covering water tank upper end
The upper cover of opening, the upper cover are connected with the gas storage part.
10. water dispenser according to claim 7, which is characterized in that the display part include display board, color indicator light,
At least one of buzzer.
11. water dispenser according to claim 10, which is characterized in that the pressure detecting part and the controller, described
Display part and the buzzer become one.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710948287.4A CN109645824B (en) | 2017-10-12 | 2017-10-12 | Liquid level detection device and water dispenser with same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710948287.4A CN109645824B (en) | 2017-10-12 | 2017-10-12 | Liquid level detection device and water dispenser with same |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109645824A true CN109645824A (en) | 2019-04-19 |
| CN109645824B CN109645824B (en) | 2024-06-25 |
Family
ID=66109376
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710948287.4A Active CN109645824B (en) | 2017-10-12 | 2017-10-12 | Liquid level detection device and water dispenser with same |
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| US4625553A (en) * | 1985-04-12 | 1986-12-02 | Dresser Industries, Inc. | System to determine the level and weight of liquid in a tank or the like |
| GB2192989A (en) * | 1986-07-26 | 1988-01-27 | Bass Plc | Measuring the level of beverage in a keg |
| KR980008289A (en) * | 1996-07-29 | 1998-04-30 | 김광호 | Water level indicator of under-sink water purifier |
| EP0840099A1 (en) * | 1996-10-30 | 1998-05-06 | Seb S.A. | Device for detecting the water level in an electrical heating appliance |
| CN2315581Y (en) * | 1997-10-27 | 1999-04-21 | 中国科学院南京土壤研究所 | Waste water treating pot for waste water treating equipment |
| FR2772917A1 (en) * | 1997-12-23 | 1999-06-25 | Jean Yves Delattre | Liquid level sensor for water recycling systems, such as water closets (WC's). |
| CN201637156U (en) * | 2009-12-30 | 2010-11-17 | 山东桑乐太阳能有限公司 | Liquid level sensor of solar water heating system |
| CN105676902A (en) * | 2016-03-15 | 2016-06-15 | 广州达意隆包装机械股份有限公司 | Method and device for adjusting water storage barrel internal pressure |
| CN106219619A (en) * | 2016-07-25 | 2016-12-14 | 浙江沁园水处理科技有限公司 | There is purifier and the Real-time Water level monitoring system thereof of real time water level monitoring function |
| CN106802176A (en) * | 2015-11-26 | 2017-06-06 | 中国科学院电子学研究所 | A kind of water level detecting system |
| CN208625369U (en) * | 2017-10-12 | 2019-03-22 | 佛山市顺德区美的饮水机制造有限公司 | Liquid level detection device and water dispenser with it |
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2017
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4625553A (en) * | 1985-04-12 | 1986-12-02 | Dresser Industries, Inc. | System to determine the level and weight of liquid in a tank or the like |
| GB2192989A (en) * | 1986-07-26 | 1988-01-27 | Bass Plc | Measuring the level of beverage in a keg |
| KR980008289A (en) * | 1996-07-29 | 1998-04-30 | 김광호 | Water level indicator of under-sink water purifier |
| EP0840099A1 (en) * | 1996-10-30 | 1998-05-06 | Seb S.A. | Device for detecting the water level in an electrical heating appliance |
| CN2315581Y (en) * | 1997-10-27 | 1999-04-21 | 中国科学院南京土壤研究所 | Waste water treating pot for waste water treating equipment |
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| Publication number | Publication date |
|---|---|
| CN109645824B (en) | 2024-06-25 |
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