CN109660239A - A kind of interlock circuit and application - Google Patents
A kind of interlock circuit and application Download PDFInfo
- Publication number
- CN109660239A CN109660239A CN201910031102.2A CN201910031102A CN109660239A CN 109660239 A CN109660239 A CN 109660239A CN 201910031102 A CN201910031102 A CN 201910031102A CN 109660239 A CN109660239 A CN 109660239A
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- Prior art keywords
- voltage
- diode
- switch
- controlled module
- controlled
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Links
- 238000004080 punching Methods 0.000 claims description 4
- 230000003252 repetitive effect Effects 0.000 claims description 4
- 238000003756 stirring Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 4
- 238000003825 pressing Methods 0.000 description 4
- 230000005611 electricity Effects 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000008901 benefit Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- GOLXNESZZPUPJE-UHFFFAOYSA-N spiromesifen Chemical compound CC1=CC(C)=CC(C)=C1C(C(O1)=O)=C(OC(=O)CC(C)(C)C)C11CCCC1 GOLXNESZZPUPJE-UHFFFAOYSA-N 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
- H03K17/51—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used
- H03K17/74—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used by the use, as active elements, of diodes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
- B01F35/20—Measuring; Control or regulation
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
- B01F35/30—Driving arrangements; Transmissions; Couplings; Brakes
- B01F35/33—Transmissions; Means for modifying the speed or direction of rotation
- B01F35/332—Transmissions; Means for modifying the speed or direction of rotation alternately changing the direction of rotation
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
- H03K17/94—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the way in which the control signals are generated
- H03K17/941—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the way in which the control signals are generated using an optical detector
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Train Traffic Observation, Control, And Security (AREA)
- Safety Devices In Control Systems (AREA)
Abstract
A kind of interlock circuit, comprising: first switch and the second switch, the first optocoupler and the second optocoupler, first diode and the second diode.The anode of first optocoupler input connects one end of the first switch and the first diode, and the other end of the first diode connects the cathode of second optocoupler input；The anode of second optocoupler input connects one end of the second switch and second diode, and the other end of second diode connects the cathode of first optocoupler input.When first switch closure, the first optocoupler executes output, and executes output by first diode the second optocoupler of locking；When second switch closure, the second optocoupler executes output, and executes output by the second diode the first optocoupler of locking.What this interlocking was forbidden is to execute output, but do not influence switch triggering signal.It is also applied to the mixing drum control of mixer truck, is achieved the purpose that more convenient and safe.
Description
Technical field
The present invention relates to more people's formula operating platforms but only receive the control technology field of a single state instruction, in particular to one
Kind interlock circuit and application.
Background technique
Common interlock circuit control mode is: pressing a way switch, another way is lockked, i.e. the input quilt of another way circuit
Cutting.Such as: a kind of electrical interlocks circuit of Patent No. 2014106069388 enters output in first via signal input terminal
When end, directly second road signal input terminal is cut off；Similarly when second road signal input terminal enters output end, directly by
Signal input part is cut off all the way.Two paths of signals cannot be inputted effectively simultaneously.
There are two some equipment meetings or two or more operation repetitive controls, but it is same to control only to receive a single state instruction
A equipment.The operation repetitive interface refers to identical operation control, can independent control.
Such as: multiple operation handles control motors change load positive-negative rotation states, synchronization or only receive any hand
The rotating forward instruction of handle or the toggling command for only receiving any handle.
Another example is: the punching machine of some large sizes, is equipped with control terminal at both ends, to facilitate control.When A Founder is being grasped
When making, the side's B operating function can be prohibited, to guarantee that equipment receives a single state instruction only to avoid operation from conflicting.Using existing
Some control modes can have such safety defect: when the side B find the side's A operating mistake when, the side B because input terminal be cut off cannot
Do any effective operation.Once occurred the side's A operating mistake in punching machine use process, and the side B can only look at accident.
This mutual-locking electric-controlled mode is applied in above-mentioned two situations, all not safe enough.
Summary of the invention
To improve safety in the prior art, the present invention is proposed.
A kind of interlock circuit, comprising: first switch and the second switch, the first voltage-controlled module and the second voltage-controlled module, first
Diode and the second diode, wherein shown voltage-controlled module includes at least first input end, the second input terminal, executes output end,
The first input end of the first voltage-controlled module connects one end of the first switch and the first diode, institute
The other end for stating first diode connects second voltage-controlled second input terminal of module；
The first input end of the second voltage-controlled module connects one end of the second switch and second diode, institute
The other end for stating the second diode connects first voltage-controlled second input terminal of module.
When first switch closure, the first voltage-controlled module executes output, and passes through the second pressure of first diode locking
Control module executes output；
When second switch closure, the second voltage-controlled module executes output, and passes through the first pressure of the second diode locking
Control module executes output.
Voltage-controlled module executes output using pressure drop signal to drive load, changes pressure drop balance by diode to realize lock
Output is executed calmly.The technical solution of the application, when the first way switch is connected, the voltage-controlled module of the first via executes output, locks simultaneously
The voltage-controlled module in second tunnel executes output function.At this point, the second way switch is still triggerable signal, the second tunnel is connected at this time
Switch, although the voltage-controlled functions of modules in the second tunnel, which is locked out, executes output, the signal of the second way switch triggering can also be locked
Determine the voltage-controlled module of the first via and executes output function.Interlocking purpose is thus reached, this interlocking is only forbidden executing output, but not
Influence switch triggering signal, that is, do not cut off the input of trigger signal.
Further, the interlock circuit is applied in two or two or more operation repetitive control.
Detailed description of the invention
Fig. 1, a kind of interlock circuit schematic diagram；
Fig. 2, a kind of optocoupler schematic diagram；
Fig. 3, voltage-controlled equivalent function schematic diagram；
Fig. 4, mixer truck application schematic diagram.
Specific embodiment
To make implementable this specification, technical solution and the more clear purpose of advantage, with reference to the accompanying drawing to this explanation
One scheme of book is clearly and completely described.Obviously, described embodiment is this specification a part of the embodiment, and
The embodiment being not all of.The protection scope of the technical program is subject to claims.
As illustrated in fig. 1 and 2, a kind of interlock circuit, comprising: first switch CC and second switch CW, the first optocoupler U1 and
Two optocoupler U2, first diode D1 and the second diode D2,
The first switch CC connects the anode of the first optocoupler U1 input terminal, the anode of the first optocoupler U1 input
The cathode that the second optocoupler U2 input terminal is also connected by first diode D1, when first switch CC closure, the first optocoupler
U1 executes output, and executes output by the second optocoupler U2 of first diode D1 locking；
The second switch CW connects the anode of the second optocoupler U2 input terminal, the anode of the second optocoupler U2 input
The cathode that the first optocoupler UI input terminal is also connected by the second diode D2, when second switch CW closure, the second optocoupler
U2 executes output, and executes output by the first optocoupler UI of the second diode D2 locking.
The other end of the first switch and the second switch is connect with power supply VCC.
Anode, the cathode of optocoupler are equivalent to the first input end of voltage-controlled module, the second input terminal, emitter, collector etc.
Imitate the execution output end in voltage-controlled module.
Further, a kind of latching circuit further includes first resistor R1 and the one end second resistance R2, the first resistor R1
It is connected between the first diode D1 and the cathode of the second optocoupler U2 input terminal, other end ground connection, the second resistance R2
One end is connected between the second diode D2 and the cathode of the first optocoupler U1 input terminal, other end ground connection.Connect resistance with
It plays a protective role.
In embodiment, switch CC is connected, optocoupler U1 output end executes task, while having locked the function that optocoupler U2 executes task
Energy.At this point, switch CW is to can trigger signal, switch CW is connected at this time, although optocoupler U2 is locked out execution task, CW
The signal of triggering can also lock the function that U1 executes task.That is CC can lock U2 and execute output, and CW can also lock U1 and hold
Row output.Interlocking purpose is thus reached, what this interlock function was forbidden, which is that two-way is respective, executes output, but does not influence each
From the input of switching signal, that is, the not function of cut-out switch CC and CW.
In this circuit, another way voltage difference is changed by diode, so that lock another way executes output, without
The input for containing switching signal, to reach interlock function.
As shown in figure 3, triode, the first resistor being connect with the pole triode B, the second resistance being connect with the pole triode E,
Picking out pin equally can control output by changing voltage with equivalent optocoupler.
In practical application, the mixing drum positive and negative rotation of existing mixer truck postposition is controlled using mechanical system, and automatically controlled substitution machine
Tool control is technology trends.Automatically controlled mode is to change mixing drum valve direction by motor driven to realize, driving electricity
Machine can be realized by voltage-controlled circuit.
As shown in figure 4, respectively disposing a control handle in mixing drum two sides of tail, driver is facilitated flexibly to grasp after vehicle
Make.It is provided on each control handle and rotates forward key and reverse button.To avoid signal conflict.Above-mentioned self-locking electricity can be used
Road is controlled.When mixer truck receives operation opposite simultaneously, mixing drum will stop operating, and guarantee the safety of control.Such as:
When left side handle presses rotating forward, the reversion of left side handle and dextral handle is forbidden to execute output；At this point, pressing reversion, and prohibit
The rotating forward for having stopped left and right side executes output, and forward and backward executes output and forbidden respectively by other side, and mixing drum then stops operating.
And use the interlock mode of the prior art, then, when pressing rotating forward, reverse button signal is completely severed, and shows as reverse button
In vain, normal execution is rotated forward, vice versa.Different from application scheme, when pressing rotating forward, reverse button signal or effective
, it only prohibits and executes output, press reversion at this time, show as mixing drum and stop operating, vice versa.This interlock circuit
It not only can guarantee and only receive a single state instruction, the safety of operation can also be improved by mutually restricting.
Certainly, latching circuit described in this application can also be applied in the punching machine of operated by two people interfacial type.When the side A is sent out
When the existing side's B operating mistake, the side B can press inverse operation simultaneously, and machine is forced to stop.Such as: utilize the self-locking electricity of the application
Road controls machine and moves up and down.When A, B arbitrarily just input machine downward operation, the execution function that machine moves upwards is banned
Only.At this point, the execution function that machine moves downward also is forbidden by other side road when any side's input machine operates upwards.Pass through phase
Mutually forbid, not only guarantees that machine can only execute the instruction task of a single state, but also the instruction of different conditions ought be received simultaneously
When, it executes function and is all prohibited, machine stops not executing either party instruction.Assuming that: when the side A discovery the side B operate machine to
Under when being mistake, the side A can press operation up and down simultaneously, so that machine stop motion, avoids accident.Or work as A
When the side B Fang Faxian operation machine is mistake upwards, the side A can press operation up and down simultaneously, so that machine stops fortune
It is dynamic,
The foregoing is merely presently preferred embodiments of the present invention, is not intended to limit the invention, it is all in spirit of the invention and
Within principle, any modification, equivalent replacement, improvement and so on, the equivalence replacement of especially voltage-controlled module, other application field
More people to operate control etc. be that those of ordinary skill in the art are easily achieved according to the disclosure, this implementation of these equivalent ways
Although example does not enumerate, should be included within scope of the invention.
Claims (9)
1. a kind of interlock circuit characterized by comprising first switch and the second switch, the first voltage-controlled module and second are voltage-controlled
Module, first diode and the second diode,
The first input end of the first voltage-controlled module connects one end of the first switch and the first diode, and described
The other end of one diode connects second voltage-controlled second input terminal of module；
The first input end of the second voltage-controlled module connects one end of the second switch and second diode, and described
The other end of two diodes connects first voltage-controlled second input terminal of module.
2. a kind of interlock circuit according to claim 1, it is characterised in that: further include first resistor and second resistance, institute
It states first resistor one end to be connected between the first diode and the second input terminal of the second voltage-controlled module, other end ground connection,
Described second resistance one end is connected between second diode and the second input terminal of the first voltage-controlled module, another termination
Ground.
3. a kind of interlock circuit characterized by comprising first switch and the second switch, the first voltage-controlled module and second are voltage-controlled
Module, first diode and the second diode,
The first switch connects the first input end of the described first voltage-controlled module, the first input end of the first voltage-controlled module
The second input terminal that the described second voltage-controlled module is also connected by first diode, when first switch closure, first pressure
Control module executes output, and executes output by first diode the second voltage-controlled module of locking；
The second switch connects the first input end of the described second voltage-controlled module, the first input end of the second voltage-controlled module
The second input terminal that the described first voltage-controlled module is also connected by the second diode, when second switch closure, second pressure
Control module executes output, and executes output by the second diode the first voltage-controlled module of locking.
4. a kind of interlock circuit according to claim 3, it is characterised in that: further include first resistor and second resistance, institute
It states first resistor one end to be connected between the first diode and the second input terminal of the second voltage-controlled module, other end ground connection,
Described second resistance one end is connected between second diode and the second input terminal of the first voltage-controlled module, another termination
Ground.
5. a kind of interlock circuit according to claim 1 or 3, it is characterised in that: the voltage-controlled module optocoupler is equivalent to be replaced
It changes.
6. a kind of interlock circuit according to claim 1 or 3, it is characterised in that: the voltage-controlled module triode and three
The first resistor of the pole pole pipe B connection, the second resistance equivalence replacement being connect with the pole triode E.
7. a kind of application of interlock circuit, it is characterised in that: the interlock circuit applies the operation repetitive at two or two or more
In control.
8. a kind of application of interlock circuit according to claim 7, it is characterised in that: the application is used for the stirring of mixer truck
Cylinder forward and backward control.
9. a kind of application of interlock circuit according to claim 7, it is characterised in that: the application is controlled for punching machine.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910031102.2A CN109660239B (en) | 2019-01-14 | 2019-01-14 | Interlocking circuit and application |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910031102.2A CN109660239B (en) | 2019-01-14 | 2019-01-14 | Interlocking circuit and application |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109660239A true CN109660239A (en) | 2019-04-19 |
| CN109660239B CN109660239B (en) | 2024-02-13 |
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ID=66119897
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910031102.2A Active CN109660239B (en) | 2019-01-14 | 2019-01-14 | Interlocking circuit and application |
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| Country | Link |
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| CN (1) | CN109660239B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103595238A (en) * | 2013-09-29 | 2014-02-19 | 深圳市伟创电气有限公司 | Low-power IGBT (insulated gate bipolar transistor) driving interlocking circuit |
| CN205017207U (en) * | 2015-09-25 | 2016-02-03 | Tcl通力电子（惠州）有限公司 | Switching on and shutting down control circuit and switching power supply |
| CN205211895U (en) * | 2015-11-30 | 2016-05-04 | 中国电子科技集团公司第十六研究所 | Automatically controlled waveguide switch drive arrangement of energy storage formula |
| CN106452044A (en) * | 2016-11-22 | 2017-02-22 | 成都麦隆电气有限公司 | Signal interlock circuit for preventing short circuit of APF (active power filter) driving circuits |
| CN208063168U (en) * | 2018-05-07 | 2018-11-06 | 青岛乾程科技股份有限公司 | A kind of high voltage isolation interlocking switch circuit |
| CN209375602U (en) * | 2019-01-14 | 2019-09-10 | 武汉盛硕电子有限公司 | A kind of interlock circuit |
-
2019
- 2019-01-14 CN CN201910031102.2A patent/CN109660239B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103595238A (en) * | 2013-09-29 | 2014-02-19 | 深圳市伟创电气有限公司 | Low-power IGBT (insulated gate bipolar transistor) driving interlocking circuit |
| CN205017207U (en) * | 2015-09-25 | 2016-02-03 | Tcl通力电子（惠州）有限公司 | Switching on and shutting down control circuit and switching power supply |
| CN205211895U (en) * | 2015-11-30 | 2016-05-04 | 中国电子科技集团公司第十六研究所 | Automatically controlled waveguide switch drive arrangement of energy storage formula |
| CN106452044A (en) * | 2016-11-22 | 2017-02-22 | 成都麦隆电气有限公司 | Signal interlock circuit for preventing short circuit of APF (active power filter) driving circuits |
| CN208063168U (en) * | 2018-05-07 | 2018-11-06 | 青岛乾程科技股份有限公司 | A kind of high voltage isolation interlocking switch circuit |
| CN209375602U (en) * | 2019-01-14 | 2019-09-10 | 武汉盛硕电子有限公司 | A kind of interlock circuit |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109660239B (en) | 2024-02-13 |
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Address after: 430065 3rd floor, Fenglong building, building 19, Huifeng enterprise Tiandi, Gutian 2nd Road, Qiaokou District, Wuhan City, Hubei Province Applicant after: WUHAN SENSOR ELECTRONICS Co.,Ltd. Address before: Building 52, Small and Medium Enterprise City, Baishazhou Bank, Wuhan, Hubei 430065 Applicant before: WUHAN SENSOR ELECTRONICS Co.,Ltd. |
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