CN108387297A - Liquid level control system, liquid level sensor and its control system - Google Patents
Liquid level control system, liquid level sensor and its control system Download PDFInfo
- Publication number
- CN108387297A CN108387297A CN201810333447.9A CN201810333447A CN108387297A CN 108387297 A CN108387297 A CN 108387297A CN 201810333447 A CN201810333447 A CN 201810333447A CN 108387297 A CN108387297 A CN 108387297A
- Authority
- CN
- China
- Prior art keywords
- liquid level
- control system
- sensor
- voltage signal
- connector
- 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.)
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Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F23/00—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm
- G01F23/30—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by floats
- G01F23/64—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by floats of the free float type without mechanical transmission elements
- G01F23/72—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by floats of the free float type without mechanical transmission elements using magnetically actuated indicating means
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F23/00—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm
- G01F23/30—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by floats
- G01F23/76—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by floats characterised by the construction of the float
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- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- General Physics & Mathematics (AREA)
- Level Indicators Using A Float (AREA)
Abstract
A kind of liquid level control system, liquid level sensor and its control system of the present invention, and in particular to sensor technical field.A kind of liquid level control system, including：Cavity is provided with Hall element at the top of the cavity, and the bottom of the Hall element is provided with electronic circuit；Float, is located at the inside cavity, and the float is built-in with permanent magnetic steel close to one end of the Hall element；Spring, is located at the bottom of the inside cavity, and the spring is used to fix the other end of the float.Vehicle gear box dipstick type liquid level sensor, including：Shell, connector and liquid level control system are installed.Level height can be detected at any time, and rapid and convenient avoids the too low problem hard to find of engine oil level.
Description
Technical field
The present invention relates to sensor technical fields, and in particular to liquid level control system, liquid level sensor and its control system.
Background technology
There are two types of states for the mechanical gear box of existing commercial car currently on the market, a kind of not have dipstick (major part),
Another kind is equipped with dipstick (small part).The major defect of two states is as follows：
The case where being fitted without the gearbox of dipstick, can not observing gearbox inner engine oil amount can only rely on automobile
To determine whether needing replacing gearbox machine oil, this is easy for causing due to gearbox machine oil oil for mileage travelled number or running time
Position is too low, oil temperature is higher, and the gearbox to caused by integrally damages.Gearbox equipped with dipstick, it will be appreciated that speed change
Machine oil situation in case can observe dipstick, but because of the limitation of gearbox location, be not easy to pull out ruler observation oil at any time
Amount.
In view of this, proposing the application.
Invention content
For the defects in the prior art, gearbox inner engine oil oil mass is quickly understood the object of the present invention is to provide a kind of
Vehicle gear box dipstick type liquid level sensor.
In a first aspect, the present invention provides a kind of liquid level control systems, including：
Cavity is provided with Hall element at the top of the cavity, and the bottom of the Hall element is provided with electronic circuit；
Float, is located at the inside cavity, and the float is built-in with permanent magnetic steel close to one end of the Hall element；
Spring, is located at the bottom of the inside cavity, and the spring is used to fix the other end of the float.
Further, further include：Dipstick graduation mark is set to the outer surface of the cavity, for feeding back liquid level.
Further, the liquid level control system is molded by the fiber injection of 70% PBT and 30%.
Second aspect, the present invention provides a kind of vehicle gear box dipstick type liquid level sensors, including：Installation shell,
Connector and liquid level control system described in any one of the above embodiments；
The installation housing tip is connect with the bottom end of the connector, and the connector is exported for signal；
The bottom end of the installation shell is connect with the top of the liquid level control system；Wherein, the electronic circuit and the company
Connect device connection；
The information that the liquid level control system is used to change oil level passes through the hall element output voltage signal, the voltage
Signal is successively transferred to instrument system by the electronic circuit, the connector, and the instrument system is sentenced according to voltage signal
Disconnected level height.
Further, further include temperature sensor, be set to the bottom end of the liquid level control system, the temperature sensor is
Platinum resistance temperature sensor；
The temperature sensor is electrically connected with the connector.
Further, the liquid level sensor is connect with gearbox spiral.
The third aspect, the present invention provides liquid level sensor control systems, including instrument system and the level sensing
Device, the instrument system are used to receive the voltage signal of the liquid level sensor, and the voltage signal is converted and exports oil
Position elevation information.
Further, the instrument system includes controller and display, and the controller is for receiving the voltage letter
Number, and the level height information is converted out according to the voltage signal；The display is for showing the level height letter
Breath.
Liquid level control system provided by the invention, the float of setting can change with oil level move up and down so that it is described forever
Magnetic magnet steel changes with the Hall element distance, so that the magnetic flux across the Hall element is changed, the Hall
Element is according to the different to export linear DC voltage of magnetic field intensity.Vehicle gear box dipstick type liquid level sensor, by line
Property DC voltage reach instrument system through electronic circuit and connector, the instrument system judges oil level height according to voltage signal
Degree, can detect level height, rapid and convenient avoids the too low problem hard to find of engine oil level at any time.
Description of the drawings
It, below will be to specific in order to illustrate more clearly of the specific embodiment of the invention or technical solution in the prior art
Embodiment or attached drawing needed to be used in the description of the prior art are briefly described.In all the appended drawings, similar element
Or part is generally identified by similar reference numeral.In attached drawing, each element or part might not be drawn according to actual ratio.
The structural schematic diagram for the vehicle gear box dipstick type liquid level sensor that Fig. 1 one embodiment of the invention provides；
Reference numeral：
1- connectors
2- installs shell
3- liquid level control systems
4- dipstick graduation marks
5- temperature sensors
6- springs
7- floats
8- permanent magnetic steels
9- electronic circuits
10- Hall elements
11- cavitys
Specific implementation mode
Technical scheme of the present invention is described in detail below in conjunction with specific embodiment.Following embodiment is only used for
Clearly illustrate technical scheme of the present invention, therefore be intended only as example, and the protection of the present invention cannot be limited with this
Range.
It should be noted that unless otherwise indicated, technical term or scientific terminology used in this application should be this hair
The ordinary meaning that bright one of ordinary skill in the art are understood.
In a first aspect, a kind of liquid level control system 3 that one embodiment of the invention provides, including：Cavity 11, the top of the cavity 11
Portion is provided with Hall element 10, and the bottom of the Hall element 10 is provided with electronic circuit 9；Float 7 is located in the cavity 11
Portion, the float 7 are built-in with permanent magnetic steel 8 close to one end of the Hall element 10；Spring 6 is located in the cavity 11
The bottom in portion, the spring 6 are used to fix the other end of the float 7.Liquid level control system 3 provided by the invention, setting it is described
Float 7 can change with oil level to be moved up and down so that the permanent magnetic steel 8 changes with 10 distance of the Hall element, makes
Magnetic flux across the Hall element 10 changes, and the Hall element 10 is according to the different to output line of magnetic field intensity
Property DC voltage.Float 7 is plastic float 7, and the spring 6 of connection float 7 is disk spring 6, and permanent magnetic steel 8 provides constant quiescent
Magnetic field.
In the prior art, there is also being not easy to observe gearbox inner engine oil oil mass, to solve this problem, this hair
A kind of liquid level control system 3 that a bright embodiment provides further includes：Dipstick graduation mark 4 is set to the outer surface of the cavity 11, uses
In feedback liquid level, convenient for observation gearbox inner engine oil oil mass.
Further, the liquid level control system 3 is molded by the fiber injection of 70% PBT and 30%.
Second aspect, as shown in Figure 1, the present invention provides a kind of vehicle gear box dipstick type liquid level sensors, including：
Shell 2, connector 1 and the liquid level control system 3 are installed；Installation 2 top of shell and the bottom end of the connector 1 connect
It connects, the connector 1 is exported for signal；The bottom end of the installation shell 2 is connect with the top of the liquid level control system 3, wherein
The electronic circuit 9 is connect with the connector 1；The information that the liquid level control system 3 is used to change oil level passes through the Hall
10 output voltage signal of element, the voltage signal are successively transferred to instrument system by the electronic circuit 9, the connector 1
System, the instrument system judge level height according to voltage signal.Vehicle gear box dipstick type liquid level sensor, will be linearly straight
Galvanic electricity pressure reaches instrument system through electronic circuit 9 and connector 1, and the instrument system judges level height according to voltage signal,
Level height can be detected at any time, and rapid and convenient avoids the too low problem hard to find of engine oil level.
Existing dipstick, function is also relatively simple, can not detect gearbox inner engine oil temperature, cannot find machine in time
Oil temperature is higher equal abnormal, in order to solve this problem, the vehicle gear box dipstick type liquid level that one embodiment of the invention provides
Sensor further includes temperature sensor 5, is set to the bottom end of the liquid level control system 3, and the temperature sensor 5 is platinum resistance temperature
Spend sensor 5；The temperature sensor 5 is electrically connected with the connector 1.The vehicle gear box that one embodiment of the invention provides
With dipstick type engine oil liquid level sensor, can real-time and precise, quickly detection gearbox inner engine oil oil mass and temperature, and convenient for seeing
It examines.Vehicle gear box is mainly used for monitoring gearbox inner engine oil liquid level, machine oil temperature at any time with dipstick type engine oil liquid level sensor
Degree, feeds back in complete machine instrument and control unit.It, can be to avoid because oil level is too low, machine by monitoring engine oil level, oil temperature
Oil temperature is abnormal, caused by gearbox entirety ablation damage.
The vehicle gear box that one embodiment of the invention provides is mostly installed at transmission for vehicles with dipstick type liquid level sensor
On, the liquid level sensor is connect with gearbox spiral.
Sensor provided by the invention has the function of 5 two kinds of fuel level sensor and temperature sensor, to gearbox producer
The advantages that saying, reducing design time, the occupancy of cabinet space, purchase cost, processing cost.Fuel level sensor part is mainly
According to fluid change in gearbox, the float 7 equipped with permanent magnetic steel 8 in liquid level control system 3 is caused to move up and down, permanent magnetic steel 8 with
10 distance of Hall element changes, and so that the magnetic flux across Hall element 10 is changed, Hall element 10 is strong according to magnetic field
The difference of degree exports to export linear DC voltage through connector 1；Temperature sensor 5 is that platinum resistance is mounted on sensor
Front end, with the height of temperature, resistance changes, and voltage changes and then judges temperature height in cause system；It is another to pass
Setting dipstick graduation mark 4, has the function of traditional dipstick, conveniently checks outside sensor.This product is easy for installation, reliability high energy is real
When feedback gearbox in oil level situation.
Vehicle gear box is mounted on gearbox threadably with dipstick type liquid level sensor, when in gearbox
When the liquid level of liquid level changes, the inside liquid level of liquid level control system 3 also changes therewith, and the float 7 that spring 6 is hung is opposite to be occurred to float
It is dynamic, the distance between permanent magnetic steel 8 built in 7 top of float and Hall element 10 occur it is opposite change, permanent magnetic steel 8 because with suddenly
You change 10 relative distance of element, cause the change of magnetic field strength across Hall element 10.
When relative distance is close, pass through 10 magnetic field intensity of Hall element relatively strong；When relative distance is remote, Hall is passed through
10 magnetic field intensity of element is relatively weak；Hall element 10 exports linear d. c. voltage signal according to magnetic field intensity difference, passes through
To instrument system, instrument system judges liquid level according to voltage value, passes through instrument for internal electronics 9 and the output of connector 1
Display.
When gearbox inner fluid temperature changes, platinum resistance of the vehicle gear box built in dipstick type liquid level sensor
The resistance value size of temperature sensor 5 changes, and is exported by connector 1 and gives instrument sampling system, causes the change of builtin voltage
Change, the temperature of fluid is judged according to the voltage signal of this variation, is shown by instrument.
In addition the product also has both traditional oil rule function, it may be convenient to the height of oil level is observed by dipstick graduation mark 4
Degree.
The liquid level sensor control system that other embodiments of the invention provide, including instrument system and the level sensing
Device, the instrument system are used to receive the voltage signal of the liquid level sensor, and the voltage signal is converted and exports oil
Position elevation information.
Further, the instrument system includes controller and display, and the controller is for receiving the voltage letter
Number, and the level height information is converted out according to the voltage signal；The display is for showing the level height letter
Breath.The controller can be processor of single chip computer, CPU etc.；In addition to being shown height using display, can also take oil level
The form that elevation information is read.
It should be noted that unless otherwise indicated, technical term or scientific terminology used in this application should be this hair
The ordinary meaning that bright one of ordinary skill in the art are understood.
In the description of the present application, it is to be understood that term "center", " longitudinal direction ", " transverse direction ", " length ", " width ",
" thickness ", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom" "inner", "outside", " up time
The orientation or positional relationship of the instructions such as needle ", " counterclockwise ", " axial direction ", " radial direction ", " circumferential direction " be orientation based on ... shown in the drawings or
Position relationship is merely for convenience of description of the present invention and simplification of the description, and does not indicate or imply the indicated device or element must
There must be specific orientation, with specific azimuth configuration and operation, therefore be not considered as limiting the invention.
In addition, term " first ", " second " etc. are used for description purposes only, it is not understood to indicate or imply relatively important
Property or implicitly indicate the quantity of indicated technical characteristic.In the description of the present invention, the meaning of " plurality " is two or more,
Unless otherwise specifically defined.
In this application unless specifically defined or limited otherwise, term " installation ", " connected ", " connection ", " fixation " etc.
Term shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integral；Can be that machinery connects
It connects, can also be electrical connection；It can be directly connected, can also can be indirectly connected through an intermediary in two elements
The interaction relationship of the connection in portion or two elements.It for the ordinary skill in the art, can be according to specific feelings
Condition understands the concrete meaning of above-mentioned term in the present invention.
In this application unless specifically defined or limited otherwise, fisrt feature can be with "above" or "below" second feature
It is that the first and second features are in direct contact or the first and second features pass through intermediary mediate contact.Moreover, fisrt feature exists
Second feature " on ", " top " and " above " but fisrt feature be directly above or diagonally above the second feature, or be merely representative of
Fisrt feature level height is higher than second feature.Fisrt feature second feature " under ", " lower section " and " below " can be
One feature is directly under or diagonally below the second feature, or is merely representative of fisrt feature level height and is less than second feature.
In the specification of the present invention, numerous specific details are set forth.It is to be appreciated, however, that the embodiment of the present invention can be with
It puts into practice without these specific details.In some instances, well known method, structure and skill is not been shown in detail
Art, so as not to obscure the understanding of this description.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show
The description of example " or " some examples " etc. means specific features, structure, material or spy described in conjunction with this embodiment or example
Point is included at least one embodiment or example of the invention.In the present specification, schematic expression of the above terms are not
It must be directed to identical embodiment or example.Moreover, particular features, structures, materials, or characteristics described can be in office
It can be combined in any suitable manner in one or more embodiments or example.In addition, without conflicting with each other, the skill of this field
Art personnel can tie the feature of different embodiments or examples described in this specification and different embodiments or examples
It closes and combines.
Finally it should be noted that：The above embodiments are only used to illustrate the technical solution of the present invention., rather than its limitations；To the greatest extent
Present invention has been described in detail with reference to the aforementioned embodiments for pipe, it will be understood by those of ordinary skill in the art that：Its according to
So can with technical scheme described in the above embodiments is modified, either to which part or all technical features into
Row equivalent replacement；And these modifications or replacements, various embodiments of the present invention technology that it does not separate the essence of the corresponding technical solution
The range of scheme should all cover in the claim of the present invention and the range of specification.
Claims (8)
1. a kind of liquid level control system, which is characterized in that including：
Cavity is provided with Hall element at the top of the cavity, and the bottom of the Hall element is provided with electronic circuit；
Float, is located at the inside cavity, and the float is built-in with permanent magnetic steel close to one end of the Hall element；
Spring, is located at the bottom of the inside cavity, and the spring is used to fix the other end of the float.
2. a kind of liquid level control system according to claim 1, which is characterized in that further include：Dipstick graduation mark is set to described
The outer surface of cavity, for feeding back liquid level.
3. a kind of liquid level control system according to claim 1, which is characterized in that the liquid level control system by 70% PBT and
30% fiber injection molding.
4. vehicle gear box dipstick type liquid level sensor, which is characterized in that including：Installation shell, connector and right are wanted
Seek 1-3 any one of them liquid level control systems；
The installation housing tip is connect with the bottom end of the connector, and the connector is exported for signal；
The bottom end of the installation shell is connect with the top of the liquid level control system；Wherein, the electronic circuit and the connector
Connection；
The information that the liquid level control system is used to change oil level passes through the hall element output voltage signal, the voltage signal
It successively is transferred to instrument system by the electronic circuit, the connector, the instrument system judges oil according to voltage signal
Position height.
5. vehicle gear box according to claim 4 dipstick type liquid level sensor, which is characterized in that further include temperature
Sensor, is set to the bottom end of the liquid level control system, and the temperature sensor is platinum resistance temperature sensor；
The temperature sensor is electrically connected with the connector.
6. vehicle gear box according to claim 4 dipstick type liquid level sensor, which is characterized in that the level sensing
Device is connect with gearbox spiral.
7. liquid level sensor control system, which is characterized in that including instrument system and claim 4-6 any one of them liquid levels
Sensor, the instrument system are used to receive the voltage signal of the liquid level sensor, and the voltage signal is converted and defeated
Go out oil level elevation information.
8. liquid level sensor control system according to claim 7, which is characterized in that the instrument system includes controller
And display, the controller convert out the level height for receiving the voltage signal according to the voltage signal
Information；The display is for showing the level height information.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810333447.9A CN108387297A (en) | 2018-04-13 | 2018-04-13 | Liquid level control system, liquid level sensor and its control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810333447.9A CN108387297A (en) | 2018-04-13 | 2018-04-13 | Liquid level control system, liquid level sensor and its control system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108387297A true CN108387297A (en) | 2018-08-10 |
Family
ID=63074031
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810333447.9A Pending CN108387297A (en) | 2018-04-13 | 2018-04-13 | Liquid level control system, liquid level sensor and its control system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108387297A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109708718A (en) * | 2019-01-19 | 2019-05-03 | 合肥杰思环保科技有限公司 | A kind of urea sensor for installing Hall element |
| CN110397573A (en) * | 2019-09-04 | 2019-11-01 | 苏州斯凯福兰智能科技有限公司 | A kind of new type compressor oil level managing device |
| CN112103044A (en) * | 2020-09-22 | 2020-12-18 | 肇庆中彩机电技术研发有限公司 | Multi-state power distribution equipment monitoring device |
| CN112833941A (en) * | 2020-12-28 | 2021-05-25 | 航天南洋（浙江）科技有限公司 | Multifunctional sensor for monitoring working state of oil tank and use method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109708718A (en) * | 2019-01-19 | 2019-05-03 | 合肥杰思环保科技有限公司 | A kind of urea sensor for installing Hall element |
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