CN206019785U - Liquid level detection circuit and wall-breaking machine - Google Patents
Liquid level detection circuit and wall-breaking machine Download PDFInfo
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- CN206019785U CN206019785U CN201620977142.8U CN201620977142U CN206019785U CN 206019785 U CN206019785 U CN 206019785U CN 201620977142 U CN201620977142 U CN 201620977142U CN 206019785 U CN206019785 U CN 206019785U
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- liquid level
- circuit
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- induction electrode
- level detection
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- 239000007788 liquid Substances 0.000 title claims abstract description 101
- 238000001514 detection method Methods 0.000 title claims abstract description 48
- 230000006698 induction Effects 0.000 claims abstract description 75
- 239000003990 capacitor Substances 0.000 claims abstract description 48
- 238000012545 processing Methods 0.000 claims abstract description 19
- 230000005611 electricity Effects 0.000 claims description 10
- 238000006243 chemical reaction Methods 0.000 claims description 6
- 239000002184 metal Substances 0.000 claims description 3
- 238000009413 insulation Methods 0.000 claims 1
- 238000007599 discharging Methods 0.000 abstract description 4
- 238000005260 corrosion Methods 0.000 abstract description 3
- 230000007797 corrosion Effects 0.000 abstract description 3
- 238000004146 energy storage Methods 0.000 description 4
- 239000004020 conductor Substances 0.000 description 3
- 230000007423 decrease Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 239000007769 metal material Substances 0.000 description 3
- 235000010469 Glycine max Nutrition 0.000 description 2
- 244000068988 Glycine max Species 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 239000003792 electrolyte Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000008267 milk Substances 0.000 description 2
- 210000004080 milk Anatomy 0.000 description 2
- 235000013336 milk Nutrition 0.000 description 2
- 229910052755 nonmetal Inorganic materials 0.000 description 2
- 235000021251 pulses Nutrition 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000003670 easy-to-clean Effects 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
- 230000005672 electromagnetic field Effects 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 235000013305 food Nutrition 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000011218 segmentation Effects 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 230000036962 time dependent Effects 0.000 description 1
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- Measurement Of Levels Of Liquids Or Fluent Solid Materials (AREA)
Abstract
This utility model discloses a kind of liquid level detection circuit and wall-breaking machine, and liquid level detection circuit includes that induction electrode, capacitor storage unit and charge-discharge circuit, induction electrode are used for sensing liquid level to be measured；The interconnection of the input of charge-discharge circuit, induction electrode and an alternating source, the outfan of charge-discharge circuit are connected with capacitor storage unit；The charge-discharge circuit, the power supply signal for being exported according to alternating source carry out discharge and recharge to capacitor storage unit；The signal processing circuit, for detecting that the capacitance signal of induction electrode generation causes the change of the charging/discharging voltage of capacitor storage unit, to identify liquid level.Liquid level detection circuit of the present utility model adopts an induction electrode, small volume, and need not be with liquid directly contact, it is to avoid permanent using rear by liquid corrosion；Liquid level detection circuit reflects liquid level change by the cooperation of capacitor storage unit and charge-discharge circuit, and circuit structure is simple, with low cost, and stability is high.
Description
Technical field
This utility model is related to Technology of Level Detection field, more particularly to a kind of liquid level detection circuit and wall-breaking machine.
Background technology
Sectional capacitor type induction level is detected with its mechanical abrasion, life-span length, water proof anti-soil, advantage easy to clean, is answered
It is used in the food processors such as wall-breaking machine, electric cooker, soy bean milk making machine, insulating pot and coffee pot and becomes new attraction.Existing
Capacitance type liquid level detection circuit is by electrode is built in liquid, then by measuring capacitance between two electrodes of electric capacity
Variable quantity, realize Level Detection.But, in some closed container, pipeline or vessel, another induction electrode is installed
Induction electrode is put in the solution by extremely difficult or long-time, so as to cause faradism easily to corrode.
Utility model content
Main purpose of the present utility model is to propose a kind of liquid level detection circuit, it is desirable to provide one kind realizes that capacitive sensing is surveyed
The circuit of amount liquid level, while the circuit structure is simple, low cost.
For achieving the above object, the utility model proposes a kind of liquid level detection circuit, including：
Induction electrode, for sensing liquid level to be measured；
Capacitor storage unit；
Charge-discharge circuit, the input of the charge-discharge circuit, the induction electrode and alternating source interconnection, described fills
The outfan of discharge circuit is connected with the capacitor storage unit；The charge-discharge circuit, for exporting according to the alternating source
Power supply signal discharge and recharge is carried out to the capacitor storage unit；
Signal processing circuit, the input of the signal processing circuit signal are connected with the outfan of the charge-discharge circuit
Connect；The signal processing circuit, for detecting that the capacitance signal that the induction electrode is generated causes filling for the capacitor storage unit
The change of discharge voltage, to identify liquid level.
Preferably, the charge-discharge circuit includes the first load, the second load, the first diode, the second diode；Described
Capacitor storage unit includes the first electric capacity；
The first end of first load is the input of the charge-discharge circuit, the second end of first load and institute
State the first end connection of the second load；Second end of second load is connected with the first end of first electric capacity；Described
The second end ground connection of one electric capacity；
The negative electrode of first diode with described first load first end be connected, the anode of the first diode with described
The anode connection of the second diode, the negative electrode of second diode are connected with the first end of the first electric capacity；
The outfan of the charge-discharge circuit is the first end of first electric capacity.
Preferably, first load and the second load are resistance.
Preferably, the induction electrode is metal forming.
Preferably, the signal processing circuit includes analog to digital conversion circuit and controller, analog-digital conversion circuit as described defeated
Enter end to be connected with the outfan of the charge-discharge circuit, for the analog quantity that the charge-discharge circuit is exported is converted into digital quantity
Export to the controller.
This utility model also proposes a kind of wall-breaking machine, and the wall-breaking machine includes cup and described liquid level detection circuit, institute
Stating liquid level detection circuit includes：
Induction electrode, for sensing liquid level to be measured；
Capacitor storage unit；
Charge-discharge circuit, the input of the charge-discharge circuit, the induction electrode and alternating source interconnection, described fills
The outfan of discharge circuit and the capacitance connection；The charge-discharge circuit, for the power supply letter exported according to the alternating source
Number discharge and recharge is carried out to the capacitor storage unit；
Signal processing circuit, the input of the signal processing circuit signal are connected with the outfan of the charge-discharge circuit
Connect；The signal processing circuit, for detecting that the capacitance signal that the induction electrode is generated causes filling for the capacitor storage unit
The change of discharge voltage, to identify liquid level；
The induction electrode of the liquid level detection circuit is arranged on the cup.
Preferably, the induction electrode of the liquid level detection circuit is arranged on the outer surface of the cup.
Preferably, the induction electrode of the liquid level detection circuit is embedded in the wall of cup of the cup.
Preferably, the induction electrode that the liquid level detection circuit has multiple, multiple liquid level detection circuits is respectively provided with
Different height and position on the cup.
Preferably, the wall-breaking machine also includes the insulating part being connected with the cup, and the insulating part surrounds cavity, described
Induction electrode is positioned in the cavity.
Technical solutions of the utility model are by arranging charge-discharge circuit and capacitor storage unit, the sense very low in liquid level
Answer electrode cannot to liquid transfer energy when, the alternating source capacitor cell is charged by the charge-discharge circuit and
Electric discharge；When liquid level is reached near induction electrode, the capacitor storage unit passes through induction electrode by the charge-discharge circuit
Discharged to liquid, so as to cause the change of capacitor storage unit electricity, by detecting the capacitor storage unit voltage
Change, so as to detect the change of container inside liquid level exactly.Liquid level detection circuit of the present utility model is sensed using one
Electrode, small volume, and need not be with liquid directly contact, it is to avoid permanent using rear by liquid corrosion；The Level Detection
Circuit reflects liquid level change by the cooperation of capacitor storage unit and charge-discharge circuit, and circuit structure is simple, with low cost, and surely
Qualitative height.
Description of the drawings
In order to be illustrated more clearly that this utility model embodiment or technical scheme of the prior art, below will be to embodiment
Or accompanying drawing to be used is briefly described needed for description of the prior art, it should be apparent that, drawings in the following description are only
It is some embodiments of the present utility model, for those of ordinary skill in the art, in the premise for not paying creative work
Under, other accompanying drawings can be obtained with the structure according to these accompanying drawings.
Fig. 1 is the principle schematic that the induction electrode of this utility model liquid level detection circuit discharges to liquid；
Structural representations of the Fig. 2 for this utility model liquid level detection circuit；
Charging/discharging voltage versus time curve figures of the Fig. 3 for the first electric capacity of this utility model；
Fig. 4 be this utility model when induction electrode senses liquid, the change of the charging/discharging voltage of the first electric capacity with the time
Change curve chart；
Fig. 5 is the structural representation that this utility model liquid level is arranged on wall-breaking machine cup outer surface for induction electrode；
When Fig. 6 is to arrange multiple induction electrodes on this utility model wall-breaking machine cup, the structural representation of level sensing module
Figure.
Drawing reference numeral explanation：
The realization of this utility model purpose, functional characteristics and advantage will be described further in conjunction with the embodiments referring to the drawings.
Specific embodiment
Below in conjunction with the accompanying drawing in this utility model embodiment, the technical scheme in this utility model embodiment is carried out
Clearly and completely describe, it is clear that described embodiment is only a part of embodiment of the present utility model, rather than all
Embodiment.Embodiment in based on this utility model, those of ordinary skill in the art are not making creative work premise
Lower obtained every other embodiment, belongs to the scope of this utility model protection.
It should be appreciated that specific embodiment described herein is not used to limit this only in order to explain this utility model
Utility model.
The utility model proposes a kind of liquid level detection circuit, can be used for such as electric cooker, wall-breaking machine, soy bean milk making machine, insulating pot
And in the equipment such as coffee pot, default height whether has been met or exceeded for liquid in testing equipment.The Level Detection
Circuit includes induction electrode 10, capacitor storage unit, charge-discharge circuit 20 and signal processing circuit 40.Wherein described faradism
Pole 10 is used for sensing liquid level to be measured.The technical program belongs to measurement by capacitance liquid level, and the induction electrode 10 can shape with liquid
Structure into similar parallel plate capacitor.Plane-parallel capacitor has two pole plates, therebetween across one layer of medium, big in capacitor
Portion of energy is directly gathered between two pole plates, and the change of one of plate charge quantity will cause other plate charge
Increase and decrease, so that be internally formed electric current in electric capacity.The induction electrode 10 is one of electrode of the capacitor, and the sense
The part for answering electrode 10 to generally go through a non-metallic material is contacted with liquid, and the part of the non-metallic material can be non-metal surfaces
Plate or cup 51 etc..The input of Fig. 1 and Fig. 2, the connection alternating source 30 of induction electrode 10 and charge-discharge circuit 20 is referred to, because
And the induction electrode 10 has voltage, when liquid level is near the induction electrode 10, the energy of electric field can pass through this non-
Metal parts 50, to liquid transmissive.Due to being filled with electrolyte in liquid tissue, when liquid level is near induction electrode 10, sensing
The energy transmission liquid of electrode 10, causes the loss of energy, as long as so as to the power change of the sensed electrode 10 of detection stream, just
Can decide whether conductive materials near the induction electrode 10.
Detect that the change of electricity on induction electrode 10, the liquid level detection circuit include 20 He of charge-discharge circuit for convenience
Capacitor storage unit.The input of the charge-discharge circuit 20, the induction electrode 10 and an alternating source 30 are interconnected, and described are filled
The outfan of discharge circuit 20 is connected with the capacitor storage unit；The charge-discharge circuit 20, for according to the alternating source
The power supply signal of 30 outputs carries out discharge and recharge to the capacitor storage unit.When induction electrode 10 does not form electric capacity with liquid,
When i.e. induction electrode 10 does not carry out energy transmission to liquid, the alternating source 30 constantly carries out charge and discharge to capacitor storage unit
Electricity.When liquid rises to 10 corresponding water level of induction electrode, the induction electrode 10 forms electric capacity, now, electric capacity with liquid
Energy-storage units are discharged to liquid by the induction electrode 10 so that before the electric charge that capacitor storage unit is supplemented is less than upper one electric discharge
Electric charge so that the capacitor storage unit electricity reduce, cause the decline of capacitor storage unit voltage.Therefore can be with
By detecting the change of the capacitor storage unit voltage, so as to determine whether conductive materials near the induction electrode 10.
Capacitor storage unit voltage to detecting is analyzed process for convenience, and the liquid level detection circuit also includes
Signal processing circuit 40.The input of 40 signal of the signal processing circuit is connected with the outfan of the charge-discharge circuit 20；
The signal processing circuit 40, for detecting that the capacitance signal that the induction electrode 10 is generated causes filling for the capacitor storage unit
The change of discharge voltage, to identify liquid level, to carry out follow-up process.
Technical solutions of the utility model are by arranging charge-discharge circuit 20 and capacitor storage unit, very low in liquid level, described
Induction electrode 10 cannot to liquid transfer energy when, the induction electrode 10 and the charge-discharge circuit 20 is common to capacitor cell
Charge and discharge；When liquid level is reached near induction electrode 10, the capacitor storage unit passes through the charge-discharge circuit
20 are discharged to liquid by induction electrode 10, so as to cause the change of capacitor storage unit electricity, by detecting the electricity
Hold the change of energy-storage units parameter, so as to detect the change of container inside liquid level exactly.Level Detection of the present utility model
Circuit adopts an induction electrode 10, small volume, and need not be with liquid directly contact, it is to avoid permanent using rear by liquid
Corrosion；By the cooperation of capacitor storage unit and charge-discharge circuit 20, the liquid level detection circuit reflects that liquid level change, circuit are tied
Structure is simple, with low cost, and stability is high.
Be based on above-described embodiment, the form of the charge-discharge circuit 20 have multiple, can be only comprising load wherein described
Load the part for consumption electric energy, such as resistance or lamp etc..In the present embodiment, Fig. 2 is referred to, the charge-discharge circuit 20 is wrapped
Include the first load, the second load, the first diode D1, the second diode D2；The capacitor storage unit includes the first electric capacity C1；
Described first first end for loading is the input of the charge-discharge circuit 20, second end and described second of first load
The first end connection of load；Second end of second load is connected with the first end of the first electric capacity C1；First electricity
Hold the second end ground connection of C1.The negative electrode of the first diode D1 is connected with the first end of the described first load, the first diode
Anode be connected with the anode of the second diode D2, the first end of the negative electrode of the second diode D2 and the first electric capacity C1
Connection；The outfan of the charge-discharge circuit 20 is the first end of the first electric capacity C1.
In the charge-discharge circuit 20, the setting of the first diode D1 and the second diode D2 conveniently can be adjusted to
The charging and discharging time of one electric capacity C1, so that meet the demand of different product.The form of wherein alternating source 30 have multiple, excellent
Elect rectangular pulse as.It is illustrated below by detecting the magnitude of voltage on the first electric capacity C1, determines whether liquid near sensing
The course of work of electrode 10.It should be noted that in the present embodiment, first load is first resistor R1, described second
Load as second resistance R2；And the present embodiment is not done to the value of the load of alternating source 30, first, the second load and the first electric capacity C1
Concrete restriction, can set according to practical application request, and example illustrative embodiments in the present embodiment are only to facilitate preferably manage
The charge-discharge principle of solution this programme.
Here sets 30 frequency of the alternating source as 300kHz, and amplitude is 0～5V, and dutycycle is 50%, the one or two pole
The forward conduction voltage of pipe D1, the second diode D2 is Vd, first load and second load resistance be 1M, the first electric capacity C1 values
For 0.1uF.When pulse signal saltus step is high level 5V, it is assumed that on the first electric capacity C1, charging starting voltage is U0, with charge and discharge
The carrying out of electric time, the voltage of the first electric capacity C1 is UC.Charge-discharge circuit 20 occurs such as according to voltage swing on the first electric capacity C1
Lower two kinds of situations：
(1) if (5U0)/2>Vd, charge constant τ=RC=106×0.1×10-6=0.1s, the first electric capacity C1 fills
Piezoelectric voltage is UC=U0e-t/τ+(5-Vd)×(1-e-t/τ).
(2) if (5-U0)/2≤Vd, charge constant τ=RC=106×0.1×10-6× 2=0.2s, electric capacity C1Fill
Piezoelectric voltage is UC=U0e-t/τ+5(1-e-t/τ).
Work as U0Value is less, and when meeting situation in (1st) under charged state, the charging circuit electric current sequentially passes through alternation
Power supply 30, first resistor R1, the second diode D2, the first electric capacity C1；Charging rate is very fast.Work as U0Value is larger, meets charging shape
When situation is planted under state (2nd), the charging circuit electric current sequentially passes through alternating source 30, first resistor R1, second resistance R2,
First electric capacity C1；Charging rate reduces.
When being low level in oscillating impulse saltus step, according to the first electric capacity C1 voltage swings, there is following two electric discharge back
Road：
(1) work as U0>2VdWhen, discharge time constant 106×0.1×10-6=0.1s, the first electric capacity C1 voltages when which discharges
For：UC=U0e-t/τ.
(2) if U0≤2VdWhen, discharge time constant τ=RC=106×0.1×10-6× 2=0.2s, the when which discharges
One electric capacity C1 voltages are：UC=U0e-t/τ.
Work as U0Value is larger, and when meeting situation in (1st) under charged state, the discharge circuit electric current sequentially passes through first
Electric capacity C1, second resistance R2, the first diode D1, induction electrode 10；The velocity of discharge is very fast.Work as U0Value is less, meets electric discharge shape
When situation is planted under state (2nd), the discharge circuit electric current sequentially passes through the first electric capacity C1, second resistance R2, first resistor R1,
Induction electrode 10；The velocity of discharge reduces.
When 30 frequency of the alternating source is very high, the time dependent relation of the first electric capacity C1 is substantially such as Fig. 3 institutes
Show；In actual charge-discharge circuit 20, the first electric capacity C1 passes through discharge and recharge of the charge-discharge circuit 20 to induction electrode 10
All the time carrying out.When liquid is near induction electrode 10, the weak electromagnetic field existed at induction electrode 10 is conducted in liquid
In electrolyte, while consuming portion of energy, the electric charge that the first electric capacity C1 is supplemented will be reduced, and therefore the voltage of the first electric capacity C1 will
Decline, when the first electric capacity C1 magnitude of voltage variable quantities reach minimum detection required precision, the signal processing circuit 40 can be logical
Crossing calculating has recognised that liquid or other conductive bodies near induction electrode 10.Now, shown first electric capacity C1 is with the time
Variation relation is as shown in figure 4, when in figure, the voltage of the first electric capacity C1 is decreased obviously, as induction electrode 10 senses liquid
When.
Above-described embodiment is based on, the signal processing circuit 40 includes analog to digital conversion circuit and controller 41, the modulus
The input of change-over circuit is connected with the outfan of the charge-discharge circuit 20, that is, be used for the magnitude of voltage for detecting the first electric capacity C1,
The analog quantity that the charge-discharge circuit 20 is exported is converted into digital output to the controller 41 by analog to digital conversion circuit.Described
Controller 41 is preferably MCU (Microcontroller Unit).MCU can pass through I2C (Inter-Integrated
Circuit) circuit is attached with ancillary equipment.In the present embodiment, the controller 41 reads the numeral of analog-digital converter
Amount is compared with default A/D values, when comparison value is timing, starts liquid level processing routine；When comparison value for negative when, program after
Continuous return, re-reads the magnitude of voltage on the first electric capacity C1.It should be noted that different products, default in controller 41
A/D values are different, set according to the characteristic of the different liquids in product.
This utility model also proposes a kind of wall-breaking machine, and the wall-breaking machine includes cup 51 and the liquid level detection circuit, the liquid
Concrete structure reference above-described embodiment of position detection circuit, as this wall-breaking machine employs whole technology of above-mentioned all embodiments
Scheme, all beneficial effects that therefore at least there is the technical scheme of above-described embodiment to be brought, this is no longer going to repeat them.Its
In, the induction electrode 10 of the liquid level detection circuit is arranged on the cup 51；The cup 51 is used for housing thing to be mixed.
The induction electrode 10 is preferably conductor, is the electric conductivity for strengthening the induction electrode 10, and the induction electrode 10 is preferably
Metal material, can be tinsel or the metal for making spring pattern.
Based on above-described embodiment, Fig. 5 is referred to, the induction electrode 10 of the liquid level detection circuit is arranged on the cup 51
Outer surface or be embedded in the wall of cup of the cup 51.To realize separating with liquid in cup, prevent induction electrode 10 rotten
Erosion, and avoid polluting liquid in cup.
Above-described embodiment is based on, the wall-breaking machine also includes that the insulating part being connected with the cup 51, the insulating part are enclosed
Into cavity, the induction electrode 10 is positioned in the cavity；To realize isolating for the induction electrode 10 and the liquid.
Based on above-described embodiment, Fig. 6 is referred to, the liquid level detection circuit there are multiple, multiple liquid level detection circuits
Induction electrode 10 be separately positioned on different height and positions on the cup 51, with realize segmentation is realized to liquid height in cup
Monitoring.In the present embodiment, each induction electrode 10 corresponds to a capacitor energy storage circuit and charge-discharge circuit 20 respectively, is diagram side
Just, corresponding for several induction electrodes 10 several capacitor energy storage circuits and several charge-discharge circuits 20 are defined as liquid level sample circuit
2, and will be integrated on a circuit board to the sample circuit and controller 41, to form level sensing module 1.
Preferred embodiment of the present utility model is the foregoing is only, the scope of the claims of the present utility model is not thereby limited,
Every equivalent structure change that under inventive concept of the present utility model, is made using this utility model description and accompanying drawing content
Change, or directly/be used in indirectly other related technical fields and be included in scope of patent protection of the present utility model.
Claims (10)
1. a kind of liquid level detection circuit, it is characterised in that include：
Induction electrode, for sensing liquid level to be measured；
Capacitor storage unit；
Charge-discharge circuit, the interconnection of the input of the charge-discharge circuit, the induction electrode and an alternating source, the discharge and recharge
The outfan of circuit is connected with the capacitor storage unit；The charge-discharge circuit, for the electricity exported according to the alternating source
Source signal carries out discharge and recharge to the capacitor storage unit；
Signal processing circuit, the input of the signal processing circuit signal are connected with the outfan of the charge-discharge circuit；Should
Signal processing circuit, for detecting that the capacitance signal that the induction electrode is generated causes the discharge and recharge of the capacitor storage unit electric
The change of pressure, to identify liquid level.
2. liquid level detection circuit as claimed in claim 1, it is characterised in that the charge-discharge circuit include the first load,
Two loads, the first diode, the second diode；The capacitor storage unit includes the first electric capacity；
The first end of first load is the input of the charge-discharge circuit, second end and described the of first load
The first end connection of two loads；Second end of second load is connected with the first end of first electric capacity；First electricity
The the second end ground connection that holds；
The negative electrode of first diode is connected with the first end of the described first load, the anode of the first diode and described second
The anode connection of diode, the negative electrode of second diode are connected with the first end of the first electric capacity；
The outfan of the charge-discharge circuit is the first end of first electric capacity.
3. liquid level detection circuit as claimed in claim 2, it is characterised in that first load and the second load are electricity
Resistance.
4. liquid level detection circuit as claimed in claim 1, it is characterised in that the induction electrode is metal forming.
5. the liquid level detection circuit as described in Claims 1-4 any one, it is characterised in that the signal processing circuit bag
Analog to digital conversion circuit and controller is included, the input of analog-digital conversion circuit as described is connected with the outfan of the charge-discharge circuit,
For the analog quantity that the charge-discharge circuit is exported is converted into digital output to the controller.
6. a kind of wall-breaking machine, it is characterised in that the wall-breaking machine includes cup and as described in claim 1 to 5 any one
Liquid level detection circuit, the induction electrode of the liquid level detection circuit are arranged on the cup.
7. wall-breaking machine as claimed in claim 6, it is characterised in that the induction electrode of the liquid level detection circuit is arranged on described
The outer surface of cup.
8. wall-breaking machine as claimed in claim 6, it is characterised in that the induction electrode of the liquid level detection circuit is embedded at described
In the wall of cup of cup.
9. wall-breaking machine as claimed in claim 6, it is characterised in that the wall-breaking machine also includes the insulation being connected with the cup
Part, the insulating part surround cavity, and the induction electrode is positioned in the cavity.
10. the wall-breaking machine as described in claim 6 to 9 any one, it is characterised in that the liquid level detection circuit have multiple,
The induction electrode of multiple liquid level detection circuits is separately positioned on different height and positions on the cup.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620977142.8U CN206019785U (en) | 2016-08-29 | 2016-08-29 | Liquid level detection circuit and wall-breaking machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620977142.8U CN206019785U (en) | 2016-08-29 | 2016-08-29 | Liquid level detection circuit and wall-breaking machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206019785U true CN206019785U (en) | 2017-03-15 |
Family
ID=58253808
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620977142.8U Withdrawn - After Issue CN206019785U (en) | 2016-08-29 | 2016-08-29 | Liquid level detection circuit and wall-breaking machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206019785U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107782408A (en) * | 2016-08-29 | 2018-03-09 | 佛山市顺德区美的电热电器制造有限公司 | Liquid level detection circuit, liquid-level detecting method and wall-breaking machine |
| CN108072422A (en) * | 2017-12-30 | 2018-05-25 | 杭州元睿电子有限公司 | A kind of net taste machine of liquid level detection device and the application device |
| CN110879092A (en) * | 2019-11-29 | 2020-03-13 | 安徽江淮汽车集团股份有限公司 | Liquid level monitoring circuit |
-
2016
- 2016-08-29 CN CN201620977142.8U patent/CN206019785U/en not_active Withdrawn - After Issue
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107782408A (en) * | 2016-08-29 | 2018-03-09 | 佛山市顺德区美的电热电器制造有限公司 | Liquid level detection circuit, liquid-level detecting method and wall-breaking machine |
| CN107782408B (en) * | 2016-08-29 | 2023-12-19 | 佛山市顺德区美的电热电器制造有限公司 | Liquid level detection circuit, liquid level detection method and wall breaking machine |
| CN108072422A (en) * | 2017-12-30 | 2018-05-25 | 杭州元睿电子有限公司 | A kind of net taste machine of liquid level detection device and the application device |
| CN110879092A (en) * | 2019-11-29 | 2020-03-13 | 安徽江淮汽车集团股份有限公司 | Liquid level monitoring circuit |
| CN110879092B (en) * | 2019-11-29 | 2020-12-01 | 安徽江淮汽车集团股份有限公司 | Liquid level monitoring circuit |
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