CN204188237U - Hall liquid level pick-up unit - Google Patents
Hall liquid level pick-up unit Download PDFInfo
- Publication number
- CN204188237U CN204188237U CN201420565615.4U CN201420565615U CN204188237U CN 204188237 U CN204188237 U CN 204188237U CN 201420565615 U CN201420565615 U CN 201420565615U CN 204188237 U CN204188237 U CN 204188237U
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- Prior art keywords
- guide pipe
- liquid level
- hall
- ecu
- control unit
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- Expired - Lifetime
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- 239000007788 liquid Substances 0.000 title claims abstract description 32
- 238000001514 detection method Methods 0.000 claims abstract description 6
- 238000005259 measurement Methods 0.000 claims abstract description 6
- 238000004458 analytical method Methods 0.000 claims abstract description 4
- 238000007789 sealing Methods 0.000 claims description 2
- 230000005355 Hall effect Effects 0.000 description 3
- 239000004020 conductor Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000004202 carbamide Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000013467 fragmentation Methods 0.000 description 1
- 238000006062 fragmentation reaction Methods 0.000 description 1
- 230000005352 galvanomagnetic phenomena Effects 0.000 description 1
- 230000005389 magnetism Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
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- Level Indicators Using A Float (AREA)
Abstract
The utility model discloses a kind of Hall liquid level pick-up unit, belong to a kind of liquid level emasuring device, 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, 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.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 the drawbacks such as liquid level sensing device is easily damaged, and serviceable life is low.
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
Fig. 1 is the structural representation for illustration of one embodiment of the invention;
Fig. 2 is for illustration of the guide pipe inner-cavity structure schematic diagram in one embodiment of the invention;
In figure, 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 accompanying drawing, the present invention is further elaborated.
Shown in figure 1 and Fig. 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.
Shown in figure 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, in the scope of, accompanying drawing open in the application and 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 |
|---|---|---|---|
| CN201420565615.4U CN204188237U (en) | 2014-09-29 | 2014-09-29 | Hall liquid level pick-up unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420565615.4U CN204188237U (en) | 2014-09-29 | 2014-09-29 | Hall liquid level pick-up unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204188237U true CN204188237U (en) | 2015-03-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420565615.4U Expired - Lifetime CN204188237U (en) | 2014-09-29 | 2014-09-29 | Hall liquid level pick-up unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204188237U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104568073A (en) * | 2014-09-29 | 2015-04-29 | 江苏凯龙宝顿动力科技有限公司 | Hall liquid level detection device |
| CN105766603A (en) * | 2016-04-11 | 2016-07-20 | 刘志强 | Automatic agricultural breeding nutrient solution monitoring and replenishing device |
| CN107340036A (en) * | 2016-05-03 | 2017-11-10 | 贵州雅光电子科技股份有限公司 | A kind of New Liquid Level Transducer device and preparation method thereof |
| CN109360769A (en) * | 2018-11-21 | 2019-02-19 | 沈阳明远电气科技有限公司 | Tongue tube liquid level relay |
-
2014
- 2014-09-29 CN CN201420565615.4U patent/CN204188237U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104568073A (en) * | 2014-09-29 | 2015-04-29 | 江苏凯龙宝顿动力科技有限公司 | Hall liquid level detection device |
| CN105766603A (en) * | 2016-04-11 | 2016-07-20 | 刘志强 | Automatic agricultural breeding nutrient solution monitoring and replenishing device |
| CN105766603B (en) * | 2016-04-11 | 2018-10-09 | 安徽泓森高科林业股份有限公司 | Agricultural breeding nutrient solution monitors automatically, supplementary device |
| CN107340036A (en) * | 2016-05-03 | 2017-11-10 | 贵州雅光电子科技股份有限公司 | A kind of New Liquid Level Transducer device and preparation method thereof |
| CN109360769A (en) * | 2018-11-21 | 2019-02-19 | 沈阳明远电气科技有限公司 | Tongue tube liquid level relay |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20150304 |