CN207197629U - A kind of electrostatic level switch sensor and electrostatic level switch - Google Patents
A kind of electrostatic level switch sensor and electrostatic level switch Download PDFInfo
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- CN207197629U CN207197629U CN201721186228.XU CN201721186228U CN207197629U CN 207197629 U CN207197629 U CN 207197629U CN 201721186228 U CN201721186228 U CN 201721186228U CN 207197629 U CN207197629 U CN 207197629U
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Abstract
The utility model provides a kind of electrostatic level switch sensor and electrostatic level switch, and described electrostatic level switch is equipped with described electrostatic level switch sensor.Described electrostatic level switch sensor includes metal mounting plate and electrostatic induction electrode, and metal mounting plate is set between the both ends of electrostatic induction electrode；The part for the side that note electrostatic induction electrode is located at metal mounting plate is first electrode portion, is second electrode portion positioned at the part of the opposite side of metal mounting plate；The end face in first electrode portion is provided with electrode outlet line connecting portion, and electrode outlet line connecting portion electrically connects with electrostatic induction electrode；The top in second electrode portion is provided with grounding body；Grounding body electrically connects with described metal mounting plate, metal mounting plate and grounding body respectively with electrostatic induction electrode mutually insulated.The utility model is used for the accuracy of detection for improving thing position.
Description
Technical field
Level switch field is the utility model is related to, specifically a kind of electrostatic level switch sensor and electrostatic thing position are opened
Close, used particularly suitable for the collection material feed bin that blanking is uneven, material particles size is irregular.
Background technology
Level switch is a kind of level measurement instrument, and for monitoring liquid or solid material position, including slurry and graininess are consolidated
Body, its measuring principle use either statically or dynamically measuring method, such as ultrasonic wave principle, capacitance principle, radar wave principle or differential pressure
Principle, existing level switch are roughly divided into two kinds：Mechanical level switch and non-electrostatic principle type level switch.
Wherein, above-mentioned mechanical level switch, its in use, material switch rotary shaft often blocked by blanking.
And above-mentioned non-electrostatic level switch, such as microwave principle and radio frequency admittance principle switch, the electrode of level switch would generally occur
Bridging phenomenon, and the pole coating of material switch, the accuracy of detection of level switch can be influenceed.Especially for blanking density unevenness
For even and/or collection material feed bin that blanking granular size is irregular, the accuracy of detection of above-mentioned existing material switch is relatively
It is low.This is the deficiencies in the prior art part.
Utility model content
Technical problem to be solved in the utility model is, in view of the shortcomings of the prior art, there is provided open a kind of electrostatic thing position
Sensor and electrostatic level switch are closed, for improving the accuracy of detection to feed bin thing position.
In order to solve the above technical problems, the utility model provides a kind of electrostatic level switch sensor, including metal peace
Loading board and electrostatic induction electrode, described metal mounting plate are set between the both ends of the electrostatic induction electrode；
The part for the side that note electrostatic induction electrode is located at metal mounting plate is first electrode portion, note electrostatic induction electrode position
In the part of the opposite side of metal mounting plate be second electrode portion；
The end face in the first electrode portion is provided with electrode outlet line connecting portion, described electrode outlet line connecting portion and institute
The electrostatic induction electrode electrical connection stated；
The top in the second electrode portion, provided with for being grounded and for directly over the second electrode portion
Material acts the grounding body blocked；
Described grounding body electrically connects with described metal mounting plate, described metal mounting plate and described grounding body point
Not with described electrostatic induction electrode mutually insulated.
Wherein, described grounding body is curved, and the arc opening of the grounding body is straight down.
Wherein, described metal mounting plate is removably set on described electrostatic induction electrode.
Wherein, described electrostatic induction electrode includes detection electrode and is coated on the peripheral insulation of described detection electrode
Layer.
Wherein, described electrostatic level switch sensor also includes a temperature compensating electrode, described temperature compensating electrode
On described metal mounting plate, described temperature compensating electrode is located at the metal mounting plate with described grounding body
The same side.
Wherein, described temperature compensating electrode, positioned at the underface of the grounding body, and it is located at the electrostatic induction electrode
Top.
The utility model additionally provides a kind of electrostatic level switch, including control board, on-off model output interface,
And electrostatic level switch sensor as described above；The electrode outlet line connecting portion of the electrostatic level switch sensor passes through
Electrode outlet line and the signal input part of the control board are electrically connected with, the signal output part of the control board and institute
The on-off model output interface stated is electrically connected with；The grounding pin of the control board by described metal mounting plate with
Described grounding body electrical connection.
Wherein, described electrostatic level switch sensor also includes a temperature compensating electrode, described temperature compensating electrode
On described metal mounting plate, described temperature compensating electrode is located at the metal mounting plate with described grounding body
The same side；Described temperature compensating electrode is electrically connected by its electrode outlet line and the signal input part of the control board
Connect；Described temperature compensating electrode is located at the underface of the grounding body, and positioned at the top of the electrostatic induction electrode.
Wherein, described control board and on-off model output interface are placed in same metal shell, described gold
Belong to installing plate to be arranged on described metal shell by described metal connecting piece；The grounding pin of the control board according to
Sequence is electrically connected by described metal shell, described metal connecting piece with described metal mounting plate.
Wherein, the first signal processing circuit, secondary signal process circuit and center are integrated with described control board
Processor CPU；The electrostatic induction of the signal input part of first signal processing circuit and the electrostatic level switch sensor
Electrode is connected, the temperature-compensating electricity of the signal input part of the secondary signal process circuit and the electrostatic level switch sensor
Extremely it is connected, the signal output part difference of the signal output part of first signal processing circuit and the secondary signal process circuit
It is connected with described central processor CPU, the on-off model output end of described central processor CPU and described switching value
Signal output interface is connected.
Compared with prior art, the utility model has the advantage of：
(1) electrostatic level switch sensor described in the utility model is provided with electrostatic induction electrode and grounding body, in use,
The electrostatic level switch sensor is arranged on to the relevant position of the feed bin of its interior material position to be monitored, and makes the electrostatic thing position
The electrostatic induction electrode and earthing pole of switch sensor are respectively positioned in the feed bin of above-mentioned its interior material position to be monitored, are easy to falling
During material, the electrostatic level switch sensor can export the electric current for detectable substance position by its electrostatic induction electrode in real time
Signal, and the electrostatic level switch sensor avoids existing machinery when exporting above-mentioned current signal for detectable substance position
The use of the rotary shaft of formula level switch, this avoids the generation for the phenomenon that rotary shaft described in the prior art is stuck, from
And the electricity for detectable substance position of electrostatic level switch sensor output described in the utility model can be improved to a certain extent
Flow the accuracy of detection of signal；
(2) grounding body of electrostatic level switch sensor described in the utility model, for being grounded and for from quiet
Material directly over electric induction electrode second electrode portion, which serves, to be blocked, in use, material can be avoided to fall directly on electrostatic sense
Answer on the upper surface of electrode, so as to avoid the generation of the phenomenon of bridging on electrostatic induction electrode, and then can further carry
The accuracy of detection of the current signal for detectable substance position of high electrostatic level switch sensor output；
(3) electrostatic level switch sensor described in the utility model is additionally provided with temperature compensating electrode, so that this is quiet
Electric level switch sensor can export two kinds of signals for detectable substance position：Current signal and temperature signal, and then cause peace
There is the electrostatic level switch of electrostatic level switch sensor described in the utility model, can be sensed with reference to the electrostatic level switch
The current signal and temperature signal available for detectable substance position of device output carry out the detection of thing position in feed bin, and then are easy to improve and pacify
There is the Level measurement precision of the electrostatic level switch of the electrostatic level switch sensor；
（4）Electrostatic level switch described in the utility model is equipped with described electrostatic level switch sensor, gives one
The new electrostatic level switch of kind, there are all advantages of the electrostatic level switch sensor, it is possible to increase electrostatic level switch
Level measurement precision.
As can be seen here, the utility model compared with prior art, has substantive distinguishing features and progress, its beneficial effect implemented
Fruit is also obvious.
Brief description of the drawings
Fig. 1 is the front view schematic diagram of electrostatic level switch sensor described in the utility model；
Fig. 2 is Fig. 1 right view schematic diagram；
Fig. 3 is the front view schematic diagram of electrostatic level switch described in the utility model；
Fig. 4 is Fig. 3 right view schematic diagram；
Fig. 5 is the electrical principle block diagram schematic diagram of electrostatic level switch described in the utility model；
Fig. 6 is the structural representation of the metal mounting plate shown in Fig. 1 and Fig. 3；
Fig. 7 is the structural representation of metal connecting piece shown in Fig. 3.
Wherein：1st, electrostatic induction electrode, 1.1, detection electrode, 1.2, insulating barrier, 2, grounding body, 3, metal shell, 4, temperature
Spend compensating electrode, 5, control board, 6, metal mounting plate, 61, mounting hole, 62, threaded mounting hole, 7, metal connecting piece, 8,
Electrode outlet line connecting portion, 9, on-off model output interface.
Embodiment
To make the technical solution of the utility model and advantage clearer, below in conjunction with accompanying drawing, to of the present utility model
Technical scheme is clearly and completely described.
Fig. 1,2 and 6 are a kind of embodiment of electrostatic level switch sensor described in the utility model.It is specific at this
In embodiment, described electrostatic level switch sensor includes metal mounting plate 6 and electrostatic induction electrode 1, described metal
Installing plate 6 is set between the both ends of the electrostatic induction electrode 1.Remember that electrostatic induction electrode 1 is located at the side of metal mounting plate 6
Part be first electrode portion, and remember that the part that electrostatic induction electrode 1 is located at the opposite side of metal mounting plate 6 is second electrode
Portion.The end face in the first electrode portion is provided with electrode outlet line connecting portion 8.Described electrode outlet line connecting portion 8, using gold
Belong to hanger, electrically connected with described electrostatic induction electrode 1.The top in the second electrode portion, provided with for being grounded and being used for
The grounding body 2 blocked is served to the material directly over the second electrode portion.Described grounding body 2 and described metal
Installing plate 6 electrically connects, and described metal mounting plate 6 and described grounding body 2 are mutually exhausted with described electrostatic induction electrode 1 respectively
Edge.Wherein, described grounding body 2 is curved, and the arc opening of the grounding body 2 is straight down.Described metal mounting plate 6 can
Releasably it is set on described electrostatic induction electrode 1, is easy to the maintenance and replacing of metal mounting plate 6 and grounding body 2, Jin Erzeng
Add the flexibility that the utility model uses.
In the present embodiment, described electrostatic induction electrode 1 includes detection electrode 1.1 and is coated on described detection electricity
The peripheral insulating barrier 1.2 of pole 1.1, is easy to realize respectively between electrostatic induction electrode 1 and grounding body 2 and electrostatic induction is electric
Mutually insulated between pole 1 and metal mounting plate 6.The spy of described electrode outlet line connecting portion 8 Yu the electrostatic induction electrode 1
Electrode 1.1 is surveyed to electrically connect.
In the present embodiment, described metal mounting plate 6 uses metal flange.In the present embodiment, described gold
Category installing plate 6 is provided with the threaded mounting hole 62 that is used for installing electrostatic induction electrode 1 and for will be described in the utility model quiet
Electric level switch sensor is arranged on one group of mounting hole 61 of feed bin relevant position, and each described mounting hole 61 is located at the screw thread
The periphery of mounting hole 62.Wherein, described electrostatic induction electrode 1 is arranged in described threaded mounting hole 62, described screw thread
Mounting hole 62 is tapped through hole.In use, described electrostatic level switch sensor is installed by each described mounting hole 61
In feed bin relevant position.
Wherein, in blanking operation, material is friction charged：When material not yet submerges described electrostatic induction electrode 1, under
Fall charged material when by electrostatic induction electrode 1, electrostatic induction phenomenon occurs, so that electrostatic induction electrode 1 detects at it
Distribution of charges on electrode 1.1 changes, and produces induced AC current in the detection electrode 1.1 of electrostatic induction electrode 1；
After the described electrostatic induction electrode 1 of material submergence, the electric charge in the detection electrode 1.1 of electrostatic induction electrode 1 is no longer sent out substantially
Changing, and when comparing material and not yet submerging described electrostatic induction electrode 1, in the detection electrode 1.1 of electrostatic induction electrode 1 this
When（The described electrostatic induction electrode 1 of material submergence）Caused alternating current impression electric current is in the reduction of several orders of magnitude.It can be seen that this reality
The electric current for detecting feed bin thing position can be produced on electrostatic induction electrode 1 with the new electrostatic level switch sensor to believe
Number.
In addition, in the present embodiment, described electrostatic level switch sensor also includes a temperature compensating electrode 4, institute
The temperature compensating electrode 4 stated is arranged on described metal mounting plate 6, described temperature compensating electrode 4 and described grounding body 2
Positioned at the same side of the metal mounting plate 6.Described temperature compensating electrode 4 is located at the underface of the grounding body 2, and the institute
The temperature compensating electrode 4 stated is located at the top of the electrostatic induction electrode 1.
In the present embodiment, the use of the temperature compensating electrode 4, this electrostatic level switch is detected and be available for
The temperature signal of detectable substance position, and then enable electrostatic level switch sensor described in the utility model to export two kinds and be available for
The signal of detectable substance position：Current signal and temperature signal.
Therefore, it is easy to the electrostatic level switch equipped with electrostatic level switch sensor described in the utility model, can combines
The current signal and temperature signal that are available for detectable substance position of the electrostatic level switch sensor output, carrying out thing position in feed bin is
The no detection for reaching sensing station, and then increase the thing that intrinsic safety has the electrostatic level switch of the electrostatic level switch sensor
Position accuracy of detection.
To sum up, the electrostatic level switch sensor described in present embodiment is a kind of new level switch sensor, its
The current signal and temperature signal for being available for detecting thing position in feed bin can be provided, and this described is available for detecting thing position in feed bin
Whether uniform current signal and temperature signal be and blanking granular size is unrelated with blanking, and this improves this to a certain extent
The accuracy of detection of electrostatic level switch.
Fig. 3,4,5,6 and 7 are a kind of embodiment of electrostatic level switch described in the utility model.In the specific reality
Apply in mode, described electrostatic level switch includes control board 5, on-off model output interface 9 and as described above
Electrostatic level switch sensor.Wherein, the electrode outlet line connecting portion 8 of the electrostatic level switch sensor is drawn by electrode
Line and the signal input part of the control board 5 are electrically connected with, and signal output part and described of the control board 5 open
Pass amount signal output interface 9 is electrically connected with；The grounding pin of the control board 5 passes through described metal mounting plate 6 and institute
The grounding body 2 stated electrically connects.In the present embodiment, described electrostatic level switch sensor also includes temperature compensating electrode 4,
Described temperature compensating electrode 4 is arranged on described metal mounting plate 6, described temperature compensating electrode 4 and described ground connection
Body 2 is located at the same side of the metal mounting plate 6；Described temperature compensating electrode 4, passes through its electrode outlet line and the control
The signal input part electrical connection of circuit board 5.Described temperature compensating electrode 4 is located at the underface of the grounding body 2, and is located at institute
State the top of electrostatic induction electrode 1.
In the present embodiment, control board 5 and on-off model output interface 9 are placed in metal shell 3, described
Metal mounting plate 6 is arranged on described metal shell 3 by metal connecting piece 7.The grounding pin of the control board 5 according to
Sequence is electrically connected by described metal shell 3, described metal connecting piece 7 with described metal mounting plate 6.Specifically, at this
In embodiment, the grounding pin of the control board 5 electrically connects with described metal shell 3, described metal shell 3 with
Described metal connecting piece 7 electrically connects, and described metal connecting piece 7 electrically connects with described metal mounting plate 6, described metal
Installing plate 6 electrically connects with described grounding body 2.
Wherein, in the present embodiment, described metal connecting piece 7 uses metallic rod, along its axle inside the metallic rod
Cable-through hole 71 is provided with to direction, the electrostatic induction electrode 1 and temperature compensating electrode 4 are each between the control board 5
Electrode outlet line, that is, be electrically connected with line and both pass through described cable-through hole 71.In the present embodiment, the electrostatic induction electrode
1 one end for being provided with the electrode outlet line connecting portion 8 is located in the cable-through hole 71 of the metal connecting piece 7.
In the present embodiment, the first signal processing circuit, secondary signal processing are integrated with described control board 5
Circuit and central processor CPU；The signal input part of first signal processing circuit and the electrostatic level switch sensor
Electrostatic induction electrode 1 be connected, the signal input part of the secondary signal process circuit and the electrostatic level switch sensor
Temperature compensating electrode 4 be connected, the signal output part of first signal processing circuit and the secondary signal process circuit
Signal output part is connected with described central processor CPU respectively, the on-off model output end of described central processor CPU
It is connected with described on-off model output interface 9.
Wherein, in the present embodiment, the first described signal processing circuit and secondary signal process circuit are using letter
Number amplifying circuit.The first described signal processing circuit is used to enter the current signal from electrostatic induction electrode 1 received
Row enhanced processing, the current signal after amplified processing is sent to central processor CPU afterwards.Described secondary signal processing
Circuit is used to be amplified processing to the temperature signal from temperature compensating electrode 4 received, afterwards by after amplified processing
Temperature signal send to central processor CPU.
In use, in the present embodiment, metal mounting plate 6 is grounded, at the signal of central processor CPU real-time reception first
The temperature signal that the current signal and secondary signal process circuit that reason circuit is sent are sent, when CPU judges what it was currently received
Current value corresponding to current signal is less than current value set in advance and judges warm corresponding to its temperature signal being currently received
When angle value is less than predetermined temperature value, central processor CPU passes through described on-off model output interface 9, output（Material
In storehouse）On-off model corresponding to current thing position, stop continuing blanking into current feed bin for controlling.
In view of the electrostatic level switch described in present embodiment is equipped with electrostatic level switch sensor as described above, its
All advantages with above-mentioned electrostatic level switch sensor, for simplify specification structure, the electrostatic level switch it is beneficial
Effect will not be repeated here.
To sum up, the utility model provides a kind of new electrostatic level switch sensor and electrostatic level switch, overcomes
The deficiencies in the prior art, improve the accuracy of detection to thing position in feed bin.In addition, electrostatic thing described in the utility model
The use of bit switch sensor and electrostatic level switch, it is whether uniform and blanking granular size is unrelated with blanking, therefore this reality
With new described electrostatic level switch sensor and electrostatic level switch, particularly suitable for blanking is uneven, material particles size
Irregular collection material feed bin uses.
Embodiment of above is only to illustrate the technical solution of the utility model, rather than its limitations；Although with reference to foregoing
The utility model is described in detail embodiment, it will be understood by those within the art that：It still can be with
Technical scheme described in foregoing each embodiment is modified, or equivalent substitution is carried out to which part technical characteristic；
And these modifications or replacement, the essence of appropriate technical solution is departed from each embodiment technical scheme of the utility model
Scope.
Claims (10)
- A kind of 1. electrostatic level switch sensor, it is characterised in that：Including metal mounting plate（6）With electrostatic induction electrode（1）, institute The metal mounting plate stated（6）It is set in the electrostatic induction electrode（1）Both ends between；Remember electrostatic induction electrode（1）Positioned at metal mounting plate（6）Side part for first electrode portion, positioned at metal mounting plate （6）The part of opposite side be second electrode portion；The end face in the first electrode portion is provided with electrode outlet line connecting portion（8）, Described electrode outlet line connecting portion（8）With described electrostatic induction electrode（1）Electrical connection；The top in the second electrode portion, Provided with for being grounded and for acting the grounding body blocked to the material directly over the second electrode portion（2）；Described grounding body（2）With described metal mounting plate（6）Electrical connection, described grounding body（2）Pacify with described metal Loading board（6）Respectively with described electrostatic induction electrode（1）Mutually insulated.
- 2. electrostatic level switch sensor according to claim 1, it is characterised in that：Described grounding body（2）It is curved, The grounding body（2）Arc opening straight down.
- 3. electrostatic level switch sensor according to claim 2, it is characterised in that：Described metal mounting plate（6）Can Releasably it is set in described electrostatic induction electrode（1）On.
- 4. electrostatic level switch sensor according to claim 3, it is characterised in that：Described electrostatic induction electrode（1） Including detection electrode（1.1）Be coated on described detection electrode（1.1）Peripheral insulating barrier（1.2）.
- 5. the electrostatic level switch sensor according to claim 1 or 2 or 3 or 4, it is characterised in that：Described electrostatic thing Bit switch sensor also includes a temperature compensating electrode（4）, described temperature compensating electrode（4）Installed installed in described metal Plate（6）On, described temperature compensating electrode（4）With described grounding body（2）Positioned at the metal mounting plate（6）The same side.
- 6. electrostatic level switch sensor according to claim 5, it is characterised in that：Described temperature compensating electrode（4）, Positioned at the grounding body（2）Underface, and be located at the electrostatic induction electrode（1）Top.
- A kind of 7. electrostatic level switch, it is characterised in that：Including control board（5）, on-off model output interface（9）, with And the electrostatic level switch sensor described in the claims 1 or 2 or 3 or 4；The electrode of the electrostatic level switch sensor Lead-out wire connecting portion（8）Pass through electrode outlet line and the control board（5）Signal input part be electrically connected with, the control Circuit board（5）Signal output part and described on-off model output interface（9）It is electrically connected with；The control board（5） Grounding pin pass through described metal mounting plate（6）With described grounding body（2）Electrical connection.
- 8. electrostatic level switch according to claim 7, it is characterised in that：Described electrostatic level switch sensor also wraps Include a temperature compensating electrode（4）, described temperature compensating electrode（4）Installed in described metal mounting plate（6）On, described temperature Spend compensating electrode（4）With described grounding body（2）Positioned at the metal mounting plate（6）The same side；Described temperature-compensating electricity Pole（4）Pass through its electrode outlet line and the control board（5）Signal input part be electrically connected with；Described temperature-compensating electricity Pole（4）Positioned at the grounding body（2）Underface, and be located at the electrostatic induction electrode（1）Top.
- 9. electrostatic level switch according to claim 7, it is characterised in that：Described control board（5）And switching value Signal output interface（9）It is placed in same metal shell（3）Interior, described metal mounting plate（6）Pass through described metal connecting piece （7）Installed in described metal shell（3）On；The control board（5）Grounding pin sequentially pass through described metal shell（3）, described metal connecting piece（7）, With described metal mounting plate（6）Electrical connection.
- 10. electrostatic level switch according to claim 7, it is characterised in that：Described control board（5）On be integrated with First signal processing circuit, secondary signal process circuit and central processor CPU；The signal of first signal processing circuit is defeated Enter end and the electrostatic induction electrode of the electrostatic level switch sensor（1）It is connected, the signal of the secondary signal process circuit The temperature compensating electrode of input and the electrostatic level switch sensor（4）It is connected, the letter of first signal processing circuit The signal output part of number output end and the secondary signal process circuit is connected with described central processor CPU respectively, described Central processor CPU on-off model output end and described on-off model output interface（9）It is connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721186228.XU CN207197629U (en) | 2017-09-15 | 2017-09-15 | A kind of electrostatic level switch sensor and electrostatic level switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721186228.XU CN207197629U (en) | 2017-09-15 | 2017-09-15 | A kind of electrostatic level switch sensor and electrostatic level switch |
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| Publication Number | Publication Date |
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| CN207197629U true CN207197629U (en) | 2018-04-06 |
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| CN201721186228.XU Active CN207197629U (en) | 2017-09-15 | 2017-09-15 | A kind of electrostatic level switch sensor and electrostatic level switch |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107449488A (en) * | 2017-09-15 | 2017-12-08 | 北京帕克莱斯分析仪器有限公司 | A kind of electrostatic level switch sensor and electrostatic level switch |
-
2017
- 2017-09-15 CN CN201721186228.XU patent/CN207197629U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107449488A (en) * | 2017-09-15 | 2017-12-08 | 北京帕克莱斯分析仪器有限公司 | A kind of electrostatic level switch sensor and electrostatic level switch |
| CN107449488B (en) * | 2017-09-15 | 2023-11-10 | 北京帕克莱斯分析仪器有限公司 | Static level switch sensor and static level switch |
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