CN204758082U - Intelligent drinking cup of non -contact level sensor and applied this sensor - Google Patents
Intelligent drinking cup of non -contact level sensor and applied this sensor Download PDFInfo
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- CN204758082U CN204758082U CN201520357400.8U CN201520357400U CN204758082U CN 204758082 U CN204758082 U CN 204758082U CN 201520357400 U CN201520357400 U CN 201520357400U CN 204758082 U CN204758082 U CN 204758082U
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- pole plate
- liquid level
- level sensor
- utility
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Abstract
The utility model discloses a non -contact level sensor, including at least one capacitive sensor, capacitive sensor includes first polar plate, second polar plate and places in dielectric between first polar plate and the second polar plate, first polar plate cover in the second polar plate outside, the second polar plate is attached in the container lateral wall, first polar plate is greater than along horizontal length in direction of measurement the length of this orientation is followed to the second polar plate. The utility model also discloses an intelligent drinking cup which includes a cup of shell, locate the inside inner bag of glass body and as above level sensor, level sensor attached in on the inner bag lateral wall. The utility model discloses level sensor has adopted novel capacitor plate design, and the sensor is attached can realize liquid level measurement in the wall of cup, and simple structure, installation are convenient, can not influence drinking cup structure originally. The utility model discloses overall structure is compact for the intelligence drinking cup, can realize the accurate measurement of drinking cup water level.
Description
Technical field
The utility model relates to a kind of sensor, particularly relates to a kind of contactless liquid level sensor.
The utility model also relates to a kind of Intelligent water cup.
Background technology
Common liquid level sensor as shown in Figure 1, in container, constitutes an electric capacity by the chamber wall 200 of interior electrode 100 and conductive material manufacture.When adding the measuring voltage of a fixed frequency to interior electrode 100, the distribution of internal electrical field wire as shown in Figure 2, the electric current now flowing through electric capacity depends on the height of liquid medium between capacitance electrode, and it is proportional with it, namely bring the change of electric capacity based on the change of dielectric specific inductive capacity, and then carry out level gauging.
This liquid level sensor is generally used for the measurement of tun liquid level, but because its volume is too large, be difficult to and water tumbler structure fusion, also the measurement of water tumbler liquid level cannot be just used for, and belong to touch sensor because of this kind of sensor, if be applied to water tumbler inside, water tumbler inner bag extremely will be not easy to cleaning.
Utility model content
The technical matters that the utility model solves be to provide a kind of structure simple, assemble convenient, water tumbler can be applied to survey the non-contacting sensor of liquid level and apply the Intelligent water cup of this sensor.
The utility model solves the problems of the technologies described above adopted technical scheme:
The utility model provides a kind of contactless liquid level sensor, comprise the capacitive transducer that at least one is arranged at container side wall, electric medium constant changes with liquid level change, the dielectric that described capacitive transducer comprises the first pole plate, the second pole plate and is placed between described first pole plate and the second pole plate, described first pole plate is overlying on outside described second pole plate, described second pole plate is attached at container side wall, and described first pole plate is transversely greater than described second pole plate length in the direction in the length of direction of measurement.
As the further improvement of technique scheme, described capacitive transducer comprises first pole plate and multiple second pole plate, described first pole plate extends to container top from container bottom along level gauging direction, and described second pole plate is evenly arranged along level gauging direction.
As the further improvement of technique scheme, described liquid level sensor comprises four the described capacitive transducers being symmetricly set in container side wall.
As the further improvement of technique scheme, described capacitive transducer comprises first pole plate and multiple the second pole plate being evenly located at described container side wall that arrange around whole container side wall.
As the further improvement of technique scheme, described second pole plate transversely in the ratio range of the length of direction of measurement and described first pole plate length be in the direction 1/4 ~ 3/4.
As the further improvement of technique scheme, described liquid level sensor also comprises the printed circuit board (PCB) be electrically connected with described capacitive transducer.
As the further improvement of technique scheme, described dielectric relative dielectric constant scope is 1 ~ 10.
The utility model additionally provides a kind of Intelligent water cup, and it comprises one glass of shell, is located at glass inner bag of body inside and the contactless liquid level sensor as above described in any one, and described liquid level sensor is attached on described side wall of inner.
As the further improvement of technique scheme, described cup shell is provided with the display unit for showing concrete liquid level.
The beneficial effects of the utility model are:
The utility model liquid level sensor have employed novel capacitor plate designs, and sensor is attached at wall of cup can realize level gauging, and structure is simple, it is convenient to install, and can not affect water tumbler structure originally.The utility model Intelligent water cup compact overall structure, can realize the Measurement accuracy of water tumbler water level.
Accompanying drawing explanation
Fig. 1 is the perspective view of prior art coaxial circles tubular liquid level sensor;
Fig. 2 is the internal electrical field wire distribution schematic diagram of the liquid level sensor of prior art;
Fig. 3 is the structural representation of the first embodiment of the utility model contactless liquid level sensor;
Fig. 4 (a) is the internal electrical field wire distribution schematic diagram of the capacitive transducer (tabular) of the utility model contactless liquid level sensor;
Fig. 4 (b) is the partial interior electric field line distribution schematic diagram of the capacitive transducer (tabular) of the utility model contactless liquid level sensor;
Fig. 4 (c) is the distribution schematic diagram of another part internal electrical field wire of the capacitive transducer (tabular) of the utility model contactless liquid level sensor;
Fig. 5 is the sectional view of the capacitive transducer of the utility model contactless liquid level sensor;
Fig. 6 is the schematic cross-section that the utility model contactless liquid level sensor is attached on water tumbler wall of cup;
Fig. 7 is the internal electrical field wire distribution schematic diagram of the capacitive transducer (arc-shaped) of the utility model contactless liquid level sensor;
Fig. 8 is the structural representation of the utility model contactless liquid level sensor the second embodiment;
Fig. 9 is the structural representation of the third embodiment of the utility model contactless liquid level sensor;
Figure 10 is the structural representation of the utility model contactless liquid level sensor the 4th kind of embodiment;
Figure 11 is the one-piece construction schematic diagram of the utility model Intelligent water cup.
Embodiment
Be clearly and completely described below with reference to embodiment and the accompanying drawing technique effect to design of the present utility model, concrete structure and generation, to understand the purpose of this utility model, characteristic sum effect fully.Obviously; described embodiment is a part of embodiment of the present utility model, instead of whole embodiment, based on embodiment of the present utility model; other embodiments that those skilled in the art obtains under the prerequisite not paying creative work, all belong to the scope of the utility model protection.In addition, all connection/annexations related in patent, not singly refer to that component directly connects, and refer to and according to concrete performance, can connect auxiliary by adding or reducing, and form more excellent draw bail.Each technical characteristic in the utility model, can combination of interactions under the prerequisite of not conflicting conflict.
Fig. 3 shows the concrete structure of the first embodiment of the utility model contactless liquid level sensor.As shown in Figure 3, the utility model contactless liquid level sensor comprises at least one and is arranged at container side wall, electric medium constant is the capacitive transducer 10 of change with liquid level change, described capacitive transducer comprises the first pole plate 11, second pole plate 12 and dielectric 13, described first pole plate 11 is overlying on outside described second pole plate 12, described second pole plate 12 is attached at container side wall, described first pole plate 11 is transversely greater than described second pole plate 12 length in the direction in the length of direction of measurement, preferably, described second pole plate 12 transversely in the ratio range of the length of direction of measurement and described first pole plate 11 length be in the direction 1/4 ~ 3/4.Described dielectric 13 is placed between described first pole plate 11 and the second pole plate 12, and its relative dielectric constant ranges preferably from 1 ~ 10.In addition, the utility model contactless liquid level sensor also comprises the lead-in wire of drawing from described capacitive transducer 10 and the printed circuit board (PCB) being provided with metering circuit.Preferably, described liquid level sensor comprises four the described capacitive transducers 10 being symmetricly set in container side wall.
For setting forth the principle of work of the utility model contactless liquid level sensor better, existing composition graphs 4(a) this principle of work is described to the internal electrical field wire distribution plan shown in Fig. 7.
As shown in Figure 4 (a), the length of the first pole plate 11 of capacitive transducer 10 is greater than the length of the second pole plate 12, and the electric field line formed therebetween comprises two parts, respectively as shown in Fig. 4 (b) He Fig. 4 (c), suppose that total electric capacity be the electric capacity shown in C, Fig. 4 (b) is C
1, the electric capacity shown in Fig. 4 (c) is C
2, the relation so between three can be expressed as C=C
1+ C
2.
As shown in Figure 5 and Figure 6, capacitive transducer 10 also comprises the dielectric 13 be located between described first pole plate 11 and the second pole plate 12, and the specific inductive capacity of dielectric 13 is constant, that is C
1for definite value, it does not change along with the change of liquid level.And found by theoretical analysis and experiment test, C
2change and dielectric 13 specific inductive capacity linear approximate relationship.Therefore, if above the second pole plate 12, dielectric Constant changes (being become water from air in the technical program), then total electric capacity C can be caused to change, and concrete relational expression is about C=C
1wherein, k is constant to+kh(, and h is liquid level).
Shown in Fig. 7 is the distribution schematic diagram of the first pole plate 11 of arc-shaped and the electric field line of the first pole plate 12.What the capacitive transducer of this kind of shape was shown is exactly be attached at columned cup schematic diagram with it, is such as attached at the periphery of cup as shown in Figure 3.
Fig. 8 shows the concrete structure of the second embodiment of the utility model contactless liquid level sensor.In this embodiment, described capacitive transducer 20 comprises first pole plate 21 and multiple second pole plate 22, described first pole plate 21 extends to container top from container bottom along level gauging direction, described second pole plate 22 is evenly arranged along level gauging direction, the quantity of the second pole plate 22 specifically can set according to actual conditions, if cup height in figure is 280mm, 14 the second pole plates 22 can be set, first pole plate 21 and 22, the second pole plate form 14 electric capacity on this basis, this kind of segmentation structure can make every section of interval measured diminish, make level gauging structure more accurate.
Fig. 9 shows the concrete structure of the third embodiment of the utility model contactless liquid level sensor.In this embodiment, described capacitive transducer 30 comprises first pole plate 31 and multiple the second pole plate 32 being evenly located at the vertical bar shape of described container side wall arranged around whole container side wall.
Figure 10 shows the concrete structure of the 4th kind of embodiment of the utility model contactless liquid level sensor.The difference of the third embodiment shown in this embodiment and Fig. 9 is that the second pole plate 42 is evenly provided with multiple along level gauging direction, also can be understood as the combination that the 4th kind of embodiment is the second embodiment and the third embodiment.
Figure 11 shows the concrete structure of the utility model Intelligent water cup.As shown in figure 11, the utility model Intelligent water cup comprises one glass of shell 50, is located at glass inner bag of body inside 60 and the contactless liquid level sensor as described in any one of claim 1 to 7, described liquid level sensor is attached on described inner bag 60 sidewall, and described cup shell 50 is provided with the display unit 70 for showing concrete liquid level.
More than that better enforcement of the present utility model is illustrated, but the utility model is not limited to described embodiment, those of ordinary skill in the art also can make all equivalent variations or replacement under the prerequisite without prejudice to the utility model spirit, and these equivalent distortion or replacement are all included in the application's claim limited range.
Claims (9)
1. a contactless liquid level sensor, comprise the capacitive transducer that at least one is arranged at container side wall, electric medium constant changes with liquid level change, it is characterized in that: the dielectric that described capacitive transducer comprises the first pole plate, the second pole plate and is placed between described first pole plate and the second pole plate, described first pole plate is overlying on outside described second pole plate, described second pole plate is attached at container side wall, and described first pole plate is transversely greater than described second pole plate length in the direction in the length of direction of measurement.
2. contactless liquid level sensor as claimed in claim 1, it is characterized in that: described capacitive transducer comprises first pole plate and multiple second pole plate, described first pole plate extends to container top from container bottom along level gauging direction, and described second pole plate is evenly arranged along level gauging direction.
3. contactless liquid level sensor as claimed in claim 1, is characterized in that: described liquid level sensor comprises four the described capacitive transducers being symmetricly set in container side wall.
4. contactless liquid level sensor as claimed in claim 1, is characterized in that: described capacitive transducer comprises first pole plate and multiple the second pole plate being evenly located at described container side wall that arrange around whole container side wall.
5. contactless liquid level sensor as claimed in claim 1, is characterized in that: described second pole plate transversely in the ratio range of the length of direction of measurement and described first pole plate length be in the direction 1/4 ~ 3/4.
6. contactless liquid level sensor as claimed in claim 1, is characterized in that: described liquid level sensor also comprises the printed circuit board (PCB) be electrically connected with described capacitive transducer.
7. contactless liquid level sensor as claimed in claim 1, is characterized in that: described dielectric relative dielectric constant scope is 1 ~ 10.
8. an Intelligent water cup, is characterized in that: comprise one glass of shell, be located at glass inner bag of body inside and the contactless liquid level sensor as described in any one of claim 1 to 7, described liquid level sensor is attached on described side wall of inner.
9. Intelligent water cup as claimed in claim 8, is characterized in that: described cup shell is provided with the display unit for showing concrete liquid level.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520357400.8U CN204758082U (en) | 2015-05-28 | 2015-05-28 | Intelligent drinking cup of non -contact level sensor and applied this sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520357400.8U CN204758082U (en) | 2015-05-28 | 2015-05-28 | Intelligent drinking cup of non -contact level sensor and applied this sensor |
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| Publication Number | Publication Date |
|---|---|
| CN204758082U true CN204758082U (en) | 2015-11-11 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520357400.8U Expired - Fee Related CN204758082U (en) | 2015-05-28 | 2015-05-28 | Intelligent drinking cup of non -contact level sensor and applied this sensor |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104897239A (en) * | 2015-05-28 | 2015-09-09 | 深圳麦开网络技术有限公司 | Non-contact liquid level sensor and intelligent water cup comprising the same |
| CN107300934A (en) * | 2017-06-30 | 2017-10-27 | 佛山市云米电器科技有限公司 | A kind of water detection method detected based on capacitance in insulating pot kettle |
| US10215177B2 (en) | 2013-06-20 | 2019-02-26 | Luraco, Inc. | Fluid pump for dispensing a fluid to a setting or work environment |
| US10215178B2 (en) | 2013-06-20 | 2019-02-26 | Luraco, Inc. | Bearing and shaft assembly for jet assemblies |
| US10278894B1 (en) | 2018-02-05 | 2019-05-07 | Luraco, Inc. | Jet assembly having a friction-reducing member |
| GB2582999A (en) * | 2019-08-28 | 2020-10-14 | Aquarate Ltd | Fluid intake monitoring |
| DE102020002714A1 (en) | 2020-06-09 | 2021-12-09 | Felix Josef Pancheri | Drinking vessel with integrated optical level measurement |
-
2015
- 2015-05-28 CN CN201520357400.8U patent/CN204758082U/en not_active Expired - Fee Related
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10215177B2 (en) | 2013-06-20 | 2019-02-26 | Luraco, Inc. | Fluid pump for dispensing a fluid to a setting or work environment |
| US10215178B2 (en) | 2013-06-20 | 2019-02-26 | Luraco, Inc. | Bearing and shaft assembly for jet assemblies |
| US10288071B2 (en) | 2013-06-20 | 2019-05-14 | Luraco, Inc. | Bearing and shaft assembly for jet assemblies |
| US10302088B2 (en) | 2013-06-20 | 2019-05-28 | Luraco, Inc. | Pump having a contactless, fluid sensor for dispensing a fluid to a setting |
| US10451071B2 (en) | 2013-06-20 | 2019-10-22 | Luraco, Inc. | Fluid pump for dispensing a fluid to a setting or work environment |
| CN104897239A (en) * | 2015-05-28 | 2015-09-09 | 深圳麦开网络技术有限公司 | Non-contact liquid level sensor and intelligent water cup comprising the same |
| CN107300934A (en) * | 2017-06-30 | 2017-10-27 | 佛山市云米电器科技有限公司 | A kind of water detection method detected based on capacitance in insulating pot kettle |
| US10278894B1 (en) | 2018-02-05 | 2019-05-07 | Luraco, Inc. | Jet assembly having a friction-reducing member |
| GB2582999A (en) * | 2019-08-28 | 2020-10-14 | Aquarate Ltd | Fluid intake monitoring |
| GB2582999B (en) * | 2019-08-28 | 2021-09-15 | Aquarate Ltd | Fluid intake monitoring |
| DE102020002714A1 (en) | 2020-06-09 | 2021-12-09 | Felix Josef Pancheri | Drinking vessel with integrated optical level measurement |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151111 |