CN104568073A - Hall liquid level detection device - Google Patents
Hall liquid level detection device Download PDFInfo
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- CN104568073A CN104568073A CN201410509803.XA CN201410509803A CN104568073A CN 104568073 A CN104568073 A CN 104568073A CN 201410509803 A CN201410509803 A CN 201410509803A CN 104568073 A CN104568073 A CN 104568073A
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- guide pipe
- liquid level
- hall
- control unit
- potential difference
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Abstract
The invention discloses a Hall liquid level detection device, belonging to a liquid level measurement device. The liquid level detection device comprises a guide pipe; a magnetic floating ball which is used for moving along the axial direction of the guide pipe is arranged outside the guide pipe in a sleeving manner; a measuring circuit is arranged in an inner cavity of the guide pipe; the measuring circuit comprises at least two Hall elements which are arranged along the axial direction of the guide pipe; the measuring circuit is connected into an electric signal port in the guide pipe; the electric signal port is used for connecting with an electric control unit; a potential difference signal detected by the Hall elements is analyzed and measured by the electric control unit. When the magnetic floating ball moves along the axial direction of the guide pipe, the Hall elements in the corresponding position in the inner cavity of the guide pipe generate a potential difference signal according to the change of the magnetic field and output the potential difference signal to the external electric control unit; the current position of the magnetic floating ball is detected by the electric control unit, that is, an existing magnetic reed pipe is replaced by the Hall elements at the acquisition end of the device, and thus the defects that a liquid level sensor is easy to damage, short in service life and the like are effectively overcome.
Description
Technical field
The present invention relates to a kind of liquid level emasuring device, in particular, the present invention relates generally to a kind of Hall liquid level pick-up unit.
Background technology
At present, known a kind of urea liquid level sensor adopts tongue tube induced magnetism principle to carry out the collection of liquid level signal, and solution on the contrary tongue tube is very easily broken in use, and accuracy is difficult to control usually.Hall effect is the one of galvanomagnetic effect, and this phenomenon is that American Physical scholar Hall (A.H.Hall, 1855-1938) found in 1879 when studying the conductive mechanism of metal.When electric current passes through conductor perpendicular to external magnetic field, there will be electric potential difference in being parallel between magnetic field and two end faces of direction of current of conductor, this phenomenon is exactly Hall effect; The present invention make use of the corresponding measuring method of Hall just, overcomes the problem existing for existing liquid level detection device.
Summary of the invention
An object of the present invention is for above-mentioned deficiency, provides a kind of Hall liquid level pick-up unit, with to expect to solve in prior art tongue tube liquid level emasuring device in use tongue tube easily there is fragmentation, accuracy is difficult to the technical matterss such as control.
For solving above-mentioned technical matters, the present invention by the following technical solutions:
A kind of Hall liquid level pick-up unit provided by the present invention, described liquid level detection device comprises guide pipe, the outer cover of described guide pipe be equipped with for along guide pipe axially-movable along magnetic ball float; Metering circuit is provided with in the inner chamber of described guide pipe, described metering circuit comprises the Hall element of at least two guide pipe axial array, electric signal interface on described metering circuit access guide pipe, described electric signal interface, for accessing ECU (Electrical Control Unit), carries out Analysis and measurement by ECU (Electrical Control Unit) to the electric potential difference signal that Hall element detects.
As preferably, further technical scheme is: described metering circuit is many groups, and all accesses electric signal interface.
Further technical scheme is: the inner chamber of described guide pipe is sealing state.
Compared with prior art, one of beneficial effect of the present invention is: when magnetic ball float is along the moving axially of guide pipe, in guide pipe inner chamber, the Hall element of correspondence position produces electric potential difference signal according to the change in magnetic field, and export outside ECU (Electrical Control Unit) to, the current location of magnetic ball float is detected by ECU (Electrical Control Unit), namely existing magnetic tongue tube is replaced at the collection terminal of device by Hall element, effectively overcome liquid level sensing device to be easily damaged, the drawbacks such as serviceable life is low, a kind of Hall liquid level structure of the detecting device provided by the present invention is simple simultaneously, be suitable for suitability for industrialized production, and can be used for all kinds of place and carry out level sensing, range of application is wide.
Accompanying drawing explanation
figure1 is for illustration of this
inventionthe structural representation of an embodiment
figure;
figure2 is for illustration of this
inventionguide pipe inner-cavity structure signal in an embodiment
figure;
figure3 is for illustration of this
inventionguide pipe inner-cavity structure signal in another embodiment
figure;
figurein, 1 be guide pipe, 2 be magnetic ball float, 3 be metering circuit, 4 be Hall element, 5 for electric signal interface.
Embodiment
Below in conjunction with attached
figurethe present invention is further elaborated.
Reference
figure1 and
figureshown in 2, one embodiment of the present of invention are a kind of Hall liquid level pick-up units, and this liquid level detection device comprises guide pipe 1, and are equipped with for the magnetic ball float 2 along guide pipe 1 axially-movable in the outer cover of guide pipe 1; Metering circuit 3 is provided with in the inner chamber of described guide pipe 1, described metering circuit 3 comprises at least two Hall elements 4 along guide pipe 1 axial array, described metering circuit 3 accesses the electric signal interface 5 on guide pipe 1, described electric signal interface 5, for accessing ECU (Electrical Control Unit), carries out Analysis and measurement by ECU (Electrical Control Unit) to the electric potential difference signal that Hall element 4 detects.Meanwhile, because liquid level detection device needs to submerge in liquid in use, the inside cavity therefore for preventing liquid from entering guide pipe, ensures that metering circuit 3 can normally be run, preferably the cavity of above-mentioned guide pipe 1 is set to the state sealed.
In the present embodiment, when magnetic ball float 2 is along the moving axially of guide pipe 1, in guide pipe 1 inner chamber, the Hall element 4 of correspondence position produces electric potential difference signal according to the change in magnetic field, and export outside ECU (Electrical Control Unit) to, the current location of magnetic ball float 2 is detected by ECU (Electrical Control Unit), namely replace existing magnetic tongue tube at the collection terminal of device by Hall element 4, effectively overcome the drawbacks such as liquid level sensing device is easily damaged, and serviceable life is low.
Reference
figureshown in 3, in another embodiment of the invention, for adapting to the measurement of the different liquid level degree of depth, meet different degree of accuracy, above-mentioned metering circuit 3 is set to many groups, and all access electric signal interface 5, namely multiple by interval, Hall element 4 detects the hall effect of magnetic ball float, realizes with this measurement that liquid level pond of different depth and different accuracy require, namely the Hall element more than 4 longitudinally arranged in guide pipe 1 inner chamber, measuring accuracy is higher.
The above embodiments in actual use, this Hall liquid level pick-up unit can avoid the interference of extraneous factor and pressure, have very reliable, can output multi-channel liquid level signal, be suitable for multiple instrument according to different liquid levels, determine corresponding guide pipe length, the quantity of Hall element is selected again according to concrete measuring accuracy, precision is higher, quantity is more, Hall element is distributed in metering circuit, again at the transportable magnetic ball float of guide pipe external device (ED) one, when magnetic ball float moves up and down, the Hall element of correspondence position is received influence of magnetic field and is produced electric potential difference signal, external ECU (Electrical Control Unit) can detect this electric signal, determine the real time position of magnetic ball float.
Than that described above, also it should be noted that spoken of in this manual " embodiment ", " another embodiment ", " embodiment " etc., refer to the specific features, structure or the feature that describe in conjunction with this embodiment and be included at least one embodiment of the application's generality description.Multiple place occurs that statement of the same race is not necessarily refer to same embodiment in the description.Furthermore, when describing specific features, structure or a feature in conjunction with any embodiment, what advocate is also fall within the scope of the invention to realize this feature, structure or feature in conjunction with other embodiments.
Although with reference to multiple explanatory embodiment of the present invention, invention has been described here, but, should be appreciated that, those skilled in the art can design a lot of other amendment and embodiment, these amendments and embodiment will drop within spirit disclosed in the present application and spirit.More particularly, open in the application, attached
figurewith in the scope of claim, multiple modification and improvement can be carried out to the building block of subject combination layout and/or layout.Except the modification of carrying out building block and/or layout is with except improvement, to those skilled in the art, other purposes also will be obvious.
Claims (3)
1. a Hall liquid level pick-up unit, is characterized in that: described liquid level detection device comprises guide pipe (1), and the outer cover of described guide pipe (1) is equipped with for the magnetic ball float (2) along guide pipe (1) axially-movable; Metering circuit (3) is provided with in the inner chamber of described guide pipe (1), described metering circuit (3) comprises at least two Hall elements (4) along guide pipe (1) axial array, electric signal interface (5) in described metering circuit (3) access guide pipe (1), described electric signal interface (5), for accessing ECU (Electrical Control Unit), carries out Analysis and measurement by ECU (Electrical Control Unit) to the electric potential difference signal that Hall element (4) detects.
2. Hall liquid level pick-up unit according to claim 1, is characterized in that: described metering circuit (3) is many groups, and all accesses electric signal interface (5).
3. Hall liquid level pick-up unit according to claim 1, is characterized in that: the inner chamber of described guide pipe (1) is sealing state.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410509803.XA CN104568073A (en) | 2014-09-29 | 2014-09-29 | Hall liquid level detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410509803.XA CN104568073A (en) | 2014-09-29 | 2014-09-29 | Hall liquid level detection device |
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| Publication Number | Publication Date |
|---|---|
| CN104568073A true CN104568073A (en) | 2015-04-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410509803.XA Pending CN104568073A (en) | 2014-09-29 | 2014-09-29 | Hall liquid level detection device |
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| CN (1) | CN104568073A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107538921A (en) * | 2016-06-27 | 2018-01-05 | 高山技术株式会社 | Ink gun chemicals feeder |
| CN108254043A (en) * | 2018-01-26 | 2018-07-06 | 佛山市川东磁电股份有限公司 | A kind of anti-deflection liquid level magnetic sensor |
| CN109602375A (en) * | 2018-11-15 | 2019-04-12 | 浙江欧琳生活健康科技有限公司 | A kind of control method of dish-washing machine and its adjustment programme |
| CN114468889A (en) * | 2021-12-24 | 2022-05-13 | 添可智能科技有限公司 | Recovery barrel state detection method, processing system and cleaning equipment |
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| CN1648619A (en) * | 2004-12-27 | 2005-08-03 | 林利 | Two-way digital control type liquid level sensor |
| CN201575847U (en) * | 2009-12-25 | 2010-09-08 | 上海黄河仪器仪表厂有限公司 | Oil mass sensor |
| CN202002706U (en) * | 2011-01-30 | 2011-10-05 | 南京艾驰电子科技有限公司 | Hall switch type through oil level indicator |
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| CN103791984A (en) * | 2012-10-29 | 2014-05-14 | 重庆卓特科技有限公司 | Oil level indicator based on Hall effect |
| CN103852142A (en) * | 2012-12-06 | 2014-06-11 | 陈森 | Hall magnetic sensing type liquid level transmitter |
| CN204188237U (en) * | 2014-09-29 | 2015-03-04 | 江苏凯龙宝顿动力科技有限公司 | Hall liquid level pick-up unit |
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Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN1648619A (en) * | 2004-12-27 | 2005-08-03 | 林利 | Two-way digital control type liquid level sensor |
| CN201575847U (en) * | 2009-12-25 | 2010-09-08 | 上海黄河仪器仪表厂有限公司 | Oil mass sensor |
| CN202002706U (en) * | 2011-01-30 | 2011-10-05 | 南京艾驰电子科技有限公司 | Hall switch type through oil level indicator |
| CN202853703U (en) * | 2012-10-29 | 2013-04-03 | 重庆卓特科技有限公司 | Oil level indicator based on Hall effect |
| CN103791984A (en) * | 2012-10-29 | 2014-05-14 | 重庆卓特科技有限公司 | Oil level indicator based on Hall effect |
| CN103852142A (en) * | 2012-12-06 | 2014-06-11 | 陈森 | Hall magnetic sensing type liquid level transmitter |
| CN204188237U (en) * | 2014-09-29 | 2015-03-04 | 江苏凯龙宝顿动力科技有限公司 | Hall liquid level pick-up unit |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107538921A (en) * | 2016-06-27 | 2018-01-05 | 高山技术株式会社 | Ink gun chemicals feeder |
| CN108254043A (en) * | 2018-01-26 | 2018-07-06 | 佛山市川东磁电股份有限公司 | A kind of anti-deflection liquid level magnetic sensor |
| CN109602375A (en) * | 2018-11-15 | 2019-04-12 | 浙江欧琳生活健康科技有限公司 | A kind of control method of dish-washing machine and its adjustment programme |
| CN114468889A (en) * | 2021-12-24 | 2022-05-13 | 添可智能科技有限公司 | Recovery barrel state detection method, processing system and cleaning equipment |
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Application publication date: 20150429 |