CN104617934A - Contact-less contactor capable of realizing pointing control - Google Patents
Contact-less contactor capable of realizing pointing control Download PDFInfo
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- CN104617934A CN104617934A CN201510065654.7A CN201510065654A CN104617934A CN 104617934 A CN104617934 A CN 104617934A CN 201510065654 A CN201510065654 A CN 201510065654A CN 104617934 A CN104617934 A CN 104617934A
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Abstract
The invention discloses a contact-less contactor capable of realizing pointing control and belongs to the technical field of contact-less contactor control. The contact-less contactor capable of realizing the pointing control comprises a main contact connected in three-phase alternating current in series and is characterized in that any two phases are led out from the three-phase alternating current to serve as a drive power supply connected to the input end of a first conditioning module, a main contact drive module is connected with the main contact to drive the main contact to act, a switch module capable of being manually turned on and off is arranged between the first conditioning module and main contact drive module, and control signals output from a field controller are simultaneously accessed into the switch module to realize the automatic on and off of the switch module. By means of the contact-less contactor capable of realizing the pointing control, the pointing control for any point can be realized in the industrial field, the on-site local debugging and maintaining are facilitated, and the debugging process is not influenced by original control signals.
Description
Technical field
Can the Contactless contactor of point operation control, belong to Contactless contactor control technology field.
Background technology
Contactless contactor, owing to not having the contact of mechanical action, has the strong feature of Chang ﹑ anti-adverse environment ability in useful life, obtains in recent years and apply more and more widely.In industry spot, all kinds of electric elements in control system, generally by programming to each quasi-controller (as PLC), realize controlling by program.But the program in controller is worked out for the technological process of whole production line, the control for any point in production line cannot be realized.
Production line is carried out local debugging or local break down keep in repair, Verify Repair effect time, due to the point operation control of any point can not be realized, therefore the program running whole production line is needed, sometimes the repeatedly operation of whole production line is even needed just can to reach desired effects, operation is inconvenience very, can consume a large amount of manpower and materials, efficiency is very low simultaneously.If by the point operation control to any point in the programming realization system of controller, then workload is huge, and the feasibility of enforcement is lower, and carries out larger change to program due to needs, therefore in control procedure, have unpredictable potential faults, reliability is lower.
In view of above defect, in the prior art, also have the device that minority producer is proposed similar point operation control, but device of the prior art generally adopts the Realization of Product of relay class, in implementation process, easily there is spark phenomenon, the life-span shorter and work unreliable.And the control signal due to contactor is generally the AC signal of 220V or 380V, is therefore carrying out in the process controlled, once the control signal of system is surprisingly sent into, then relay can burnt out, there is larger potential safety hazard.
Summary of the invention
The technical problem to be solved in the present invention is: overcome the deficiencies in the prior art, a kind of point operation control that can realize any point in industry spot is provided, facilitate on-the-spot local debugging and maintenance, and debug process not by original control signal affect can the Contactless contactor of point operation control.
The technical solution adopted for the present invention to solve the technical problems is: this can the Contactless contactor of point operation control, comprise the main contacts be connected in three-phase alternating current, it is characterized in that: in three-phase alternating current, draw any two-phase is connected to the first conditioning module input as driving power, main contacts driver module connects main contacts and drives its action, the switch module that one manually can realize break-make is provided with between the first conditioning module and main contacts driver module, the control signal that field controller exports accesses in switch module simultaneously, realize the auto switching of switch module.
Preferably, described switch module at least comprises electronic switch and push-button switch, electronic switch and push-button switch access between the first described conditioning module and main contacts driver module with the form of parallel connection simultaneously, the drive end of described control signal access electronic switch.
Preferably, the second conditioning module can also be set between the drive end and control signal of described electronic switch.
Preferably, the second described conditioning module comprises: the second voltage reduction module, the second rectification module, the second Voltage stabilizing module, described control signal is connected to the input of the second voltage reduction module, the output of the second voltage reduction module connects the input of the second rectification module, the output of the second rectification module connects the input of the second Voltage stabilizing module, the drive end of the output access electronic switch of the second Voltage stabilizing module.
Preferably, the first described conditioning module comprises: the first voltage reduction module, the first rectification module and the first Voltage stabilizing module, driving power connects the input of the first voltage reduction module, the output of the first voltage reduction module connects the input of the first rectification module, the output of the first rectification module connects the input of the first Voltage stabilizing module, the switch module described in output connection of the first Voltage stabilizing module.
Preferably, between any two phase lines of described main contacts output, auxiliary contact module is parallel with.
Preferably, described auxiliary contact module comprises the 3rd voltage reduction module, the 3rd rectification module, the 3rd Voltage stabilizing module and the relay module that connect successively.
Preferably, described main contacts is realized by bidirectional triode thyristor.
Compared with prior art, the beneficial effect that the present invention has is:
1, by originally can the Contactless contactor of point operation control, can when being in debugging or service mode when production line, realize the point operation control of any Contactless contactor in production line, depart from the control of main program in PLC, relieving Contactless contactor needs by the drawback of PLC drive singal drive actions, convenient debugging and maintenance.
2, when PLC sending control signal unexpected of a variety of causes, this control signal after the second voltage reduction module, the second rectification module and the second Voltage stabilizing module by three pole conductings, because triode and button are for being connected in parallel, thus triode connect after and any impact can not be there is between button.Therefore by originally can the Contactless contactor of point operation control, achieve the isolation between high-voltage signal and low-voltage signal, the control signal avoiding prior art high voltage appearance is surprisingly sent into and burning out of the electric component caused, and reduces the fail safe that cost improves work simultaneously.
3, due to Contactless contactor is carried out connection control time drive singal be low-voltage signal, therefore when the drive circuit of Contactless contactor is connected, can not spark be produced, extend useful life.
4, originally can the Contactless contactor of point operation control, be not only applicable to the point operation control of Contactless contactor, make the point operation control being applicable to other trigger elements (as relay, contactor), range of application is wider simultaneously.
Accompanying drawing explanation
Fig. 1 is can the Contactless contactor Drive and Control Circuit functional-block diagram of point operation control.
Fig. 2 is can the Contactless contactor first conditioning module functional-block diagram of point operation control.
Fig. 3 is can the Contactless contactor switch module functional-block diagram of point operation control.
Fig. 4 is can the Contactless contactor second conditioning module functional-block diagram of point operation control.
Fig. 5 is can the Contactless contactor circuit theory diagrams of point operation control.
Fig. 6 is embodiment 3 auxiliary contact module functional-block diagram.
Fig. 7 is embodiment 3 auxiliary contact module circuit theory diagrams.
Embodiment
Fig. 1 ~ 5 are most preferred embodiments of the present invention, and below in conjunction with accompanying drawing 1 ~ 5, the present invention will be further described.
Embodiment 1:
As shown in Figure 1, can the Contactless contactor of point operation control, comprise Contactless contactor and be fixed on the Drive and Control Circuit in Contactless contactor shell, Drive and Control Circuit comprises the first conditioning module, switch module, main contacts driver module and main contacts.Main contacts is connected in three-phase alternating current loop, two-phase is connected to the first conditioning module input as driving power is drawn arbitrarily in three-phase alternating current, the output of the first conditioning module connects main contacts driver module by switch module, and contact main contacts driver module connects main contacts and drives its folding.In the control signal access switch module exported by field controller (as PLC), the folding of control switch module.
As shown in Figure 2, the first conditioning module comprises: the first voltage reduction module, the first rectification module and the first Voltage stabilizing module.The input of the first voltage reduction module is connected by the driving power of drawing in master battery signal, the output of the first voltage reduction module connects the input of the first rectification module, the output of the first rectification module connects the input of the first Voltage stabilizing module, and the output of the first Voltage stabilizing module is connected with the main contacts driver module of Contactless contactor by switch module.
After the first voltage reduction module step-down, the first rectification module rectification, the direct current signal of low-voltage is become by the driving power of drawing in master battery signal, the signal of this low-voltage is galvanic current pressure signal through the Final finishing of the first Voltage stabilizing module, the d. c. voltage signal exported by the first Voltage stabilizing module connects the main contacts driver module of Contactless contactor through switch module, when switch module is connected, realized indirectly driving the action of main contacts driver module by main power source.
As shown in Figure 2, switch module comprises the second conditioning module, electronic switch and the push-button switch in parallel with electronic switch.Control signal accesses the second conditioning module, second conditioning module output is connected in electronic switch, when the second conditioning module has signal to export, electronic switch can be driven to connect, loop between first Voltage stabilizing module and main contacts driver module is connected after connecting by electronic switch, the main contacts action of Contactless contactor; Being parallel with independently push-button switch at trigger switch two ends simultaneously, simultaneously by manually connecting the loop between the first Voltage stabilizing module and main contacts driver module, Contactless contactor being powered on action.
As shown in Figure 4, the second conditioning module comprises: the second voltage reduction module, the second rectification module, the second Voltage stabilizing module.The control signal that field controller exports is connected to the input of connection second voltage reduction module, the output of the second voltage reduction module connects the input of the second rectification module, the output of the second rectification module connects the input of the second Voltage stabilizing module, and the output of the second Voltage stabilizing module connects the signal input part of trigger switch.
In circuit theory diagrams as shown in Figure 5, binding post J1 is for introducing driving power, the reduction voltage loop step-down of master battery signal first through being composed in parallel by resistance R1 and electric capacity C1, after step-down, in resistance R2 and the rectification circuit that is made up of diode D1 ~ D4, rectification is the direct current of 15V, and the direct current of 15V exports 12V direct voltage after voltage stabilizing chip U1 changes.The reduction voltage loop that resistance R1 and electric capacity C1 composes in parallel is the first above-mentioned voltage reduction module, and the rectification circuit that diode D1 ~ D4 forms is the first above-mentioned rectification module, and voltage stabilizing chip U1 is the first above-mentioned Voltage stabilizing module.First voltage reduction module, the first rectification module are simultaneously by other forms of circuit realiration, and voltage stabilizing chip U1 realizes by commercially available multiple voltage stabilizing chip equally.
Binding post J2 is for introducing control signal, the reduction voltage loop step-down of control signal first through being composed in parallel by resistance R3 and electric capacity C2, after step-down, in resistance R4 and the rectification circuit that is made up of diode D5 ~ D8, rectification is the direct current of 15V, and the direct current of 15V exports 12V direct voltage after voltage stabilizing chip U2 changes.The reduction voltage loop that resistance R3 and electric capacity C2 composes in parallel is the second above-mentioned voltage reduction module, and the rectification circuit that diode D5 ~ D8 forms is the second above-mentioned rectification module, and voltage stabilizing chip U2 is the second above-mentioned Voltage stabilizing module.Second voltage reduction module, the second rectification module are simultaneously by other forms of circuit realiration, and voltage stabilizing chip U2 realizes by commercially available multiple voltage stabilizing chip equally.
The collector electrode of triode Q1 in parallel and one end of button KEY1 while of after the 12V Voltage Series resistance R6 that voltage stabilizing chip U1 output exports, the base stage of connecting triode Q1 after the 12V Voltage Series resistance R5 that voltage stabilizing chip U2 output exports.The emitter of triode Q1 and the other end of button KEY1 connect 1 pin of optocoupler U3 simultaneously.Triode Q1 is a kind of implementation of above-mentioned electronic switch, and electronic switch can also be realized by other modes, as metal-oxide-semiconductor, relay etc.Button KEY1 is above-mentioned push-button switch.
Be connected with the output terminals A 2 of bidirectional thyristor T1 after the 6 pin series resistance R7 of optocoupler U3, the control end of bidirectional thyristor T1 in parallel while of 6 pin; Connect the input A1 of bidirectional thyristor T1 after 4 pin series resistance R8, between the input A1 of bidirectional thyristor T1 and output terminals A 2, be parallel with the loop be composed in series by electric capacity C3 and resistance R9 simultaneously.Bidirectional thyristor T1 is the A phase main contacts be connected in live wire A in Contactless contactor, and optocoupler U3 is for driving bidirectional thyristor T1 folding.
1 pin of optocoupler U4 is connected with 2 pin of optocoupler U3; Be connected with the output B2 of bidirectional thyristor T2 after 6 pin series resistance R10, the control end of bidirectional thyristor T2 in parallel while of 6 pin; Connect the input B1 of bidirectional thyristor T2 after 4 pin series resistance R11, between the input B1 of bidirectional thyristor T2 and output B2, be parallel with the loop be composed in series by electric capacity C4 and resistance R12 simultaneously.Bidirectional thyristor T2 is the B phase main contacts be connected in live wire B in Contactless contactor, and optocoupler U4 is for driving bidirectional thyristor T2 folding.
1 pin of optocoupler U5 is connected with 2 pin of optocoupler U4, the 2 pin ground connection of optocoupler U5; Be connected with the output C2 of bidirectional thyristor T3 after 6 pin series resistance R13, the control end of bidirectional thyristor T3 in parallel while of 6 pin; Connect the input C1 of bidirectional thyristor T3 after 4 pin series resistance R14, between the input C1 of bidirectional thyristor T3 and output C2, be parallel with the loop be composed in series by electric capacity C5 and resistance R15 simultaneously.Bidirectional thyristor T3 is the C phase main contacts be connected in live wire C in Contactless contactor, and optocoupler U5 is for driving bidirectional thyristor T3 folding.
Resistance R8, R11 and R14 are respectively the current-limiting resistance of the output of optocoupler U3 ~ U5, can ensure that three bidirectional thyristor T1 ~ T3 can not false triggering by arranging current-limiting resistance under the prerequisite ensureing trigger sensitivity simultaneously.When being connected to the load power down of three-phase contactless contact modules output, larger reverse current can be produced, electric capacity C3 is connected in parallel between input A1 and output terminals A 2 after connecting with resistance R9, reverse current can be absorbed to the full extent by electric capacity C3 and resistance R9, make the waveform of reverse current smooth-out, decrease the impact to bidirectional thyristor T1, extend the life-span of bidirectional thyristor T1.Electric capacity C4 and resistance R12 is connected in parallel between input B1 with output B2 after connecting, electric capacity C5 resistance R15 is connected in parallel between input C1 and output C2 after connecting and plays identical protective effect to bidirectional thyristor T2 and bidirectional thyristor T3 respectively.
Specific works process and operation principle as follows:
When production line is in debugging or service mode, PLC is not in normal operating conditions, can not send into control signal.Because main power source is normal power supply state, therefore the driving power introduced in main power source becomes 12V direct current signal after the first voltage reduction module, the first rectification module and the first Voltage stabilizing module process, and this signal is carried in the collector electrode of triode Q1 and one end of button KEY1 through the output of voltage stabilizing chip U1 simultaneously.When needing to carry out point operation control to the Contactless contactor main program departed from PLC of production line certain, operating personnel push button KEY1, loop between chip U1 and main contacts driver module is connected, Contactless contactor action, achieves and departs from PLC main program to the point operation control of any point in production line.
As mentioned above, when production line is in debugging or service mode, PLC can not send into control signal still when PLC sending control signal unexpected of a variety of causes, drive singal is delivered to the base stage of triode Q1 by this control signal after the second voltage reduction module, the second rectification module and the second Voltage stabilizing module, drive triode Q1 conducting, now because triode Q1 and button KEY1 is for being connected in parallel, even if therefore now staff is debugged by button KEY1, between triode Q1 and button KEY1, any impact can not be there is.Therefore by originally can the Contactless contactor of point operation control, on the basis achieving any point point operation control in production line, achieve the isolation between high-voltage signal and low-voltage signal simultaneously, the control signal avoiding prior art high voltage appearance is surprisingly sent into and burning out of the electric component caused, and reduces the fail safe that cost improves work simultaneously.
Because drive singal is low-voltage signal when carrying out connection to Contactless contactor and controlling, therefore when the drive circuit of Contactless contactor is connected, can not spark be produced, extend useful life.
Embodiment 2:
Embodiment 2 and embodiment 1 are distinguished and are, when the control signal that the field controller introduced by Fig. 5 (as PLC) exports is the direct current signal of low-voltage, now can save the second voltage reduction module composed in parallel by resistance R3 and electric capacity C2 in Fig. 5, the second rectification module be made up of diode D5 ~ D8, now directly be carried in the voltage input end of voltage stabilizing chip U2 after control signal series resistance R4, its course of work and operation principle identical with embodiment 1, repeat no more.
Embodiment 3:
Embodiment 3 is with the difference of embodiment 1 ~ 2: auxiliary contact module in parallel between any two-phase in the three-phase alternating current of main contacts output.By arranging auxiliary contact, solving and auxiliary contact must be had to coordinate in electrical interlocks occasion, due to the difficult problem that Contactless contactor of the prior art cannot use without auxiliary contact coordinate due to self.And these auxiliary contact with the Contactless contactor of auxiliary contact are triggered by the output signal of the main electronic contact of contactor, avoid the false triggering phenomenon that may cause when auxiliary contact are triggered by control signal, ensure that the fail safe of use.
As shown in Figure 6, auxiliary contact module comprises the 3rd voltage reduction module, the 3rd rectification module, the 3rd Voltage stabilizing module and relay module, and the 3rd voltage reduction module, the 3rd rectification module, the 3rd Voltage stabilizing module and relay module are connected successively.The ac signal of main contacts output, successively through the 3rd voltage reduction module, the 3rd rectification module, the 3rd Voltage stabilizing module, is loaded into relay module two ends and drives the actuating of relay after step-down, rectification and Voltage stabilizing module.
In circuit theory diagrams as shown in Figure 7, the driving power of auxiliary contact module is introduced by binding post J3, the reduction voltage loop step-down of driving power first through being composed in parallel by resistance R16 and electric capacity C6, after step-down, in resistance R17 and the rectification circuit that is made up of diode D9 ~ D12, rectification is the direct current of 15V, direct current output dc voltage after voltage stabilizing chip U6 changes of 15V.The both positive and negative polarity of the direct voltage that voltage stabilizing chip U6 exports is connected with the drive coil of relay U7, and namely the contact of relay can be used as the auxiliary contact of this Contactless contactor.
The reduction voltage loop that resistance R6 and electric capacity C16 composes in parallel is the 3rd above-mentioned voltage reduction module, and the rectification circuit that diode D9 ~ D12 forms is the 3rd above-mentioned rectification module, and voltage stabilizing chip U6 is the 3rd above-mentioned Voltage stabilizing module.
The execution mode of this Contactless contactor can be the arbitrary arrangement combination of above each embodiment.
The above is only preferred embodiment of the present invention, and be not restriction the present invention being made to other form, any those skilled in the art may utilize the technology contents of above-mentioned announcement to be changed or be modified as the Equivalent embodiments of equivalent variations.But everyly do not depart from technical solution of the present invention content, any simple modification, equivalent variations and the remodeling done above embodiment according to technical spirit of the present invention, still belong to the protection range of technical solution of the present invention.
Claims (8)
1. one kind can the Contactless contactor of point operation control, comprise the main contacts be connected in three-phase alternating current, it is characterized in that: in three-phase alternating current, draw any two-phase is connected to the first conditioning module input as driving power, main contacts driver module connects main contacts and drives its action, the switch module that one manually can realize break-make is provided with between the first conditioning module and main contacts driver module, the control signal that field controller exports accesses in switch module simultaneously, realizes the auto switching of switch module.
2. according to claim 1 can the Contactless contactor of point operation control, it is characterized in that: described switch module at least comprises electronic switch and push-button switch, electronic switch and push-button switch access between the first described conditioning module and main contacts driver module with the form of parallel connection simultaneously, the drive end of described control signal access electronic switch.
3. according to claim 2 can the Contactless contactor of point operation control, it is characterized in that: between the drive end and control signal of described electronic switch, the second conditioning module can also be set.
4. according to claim 3 can the Contactless contactor of point operation control, it is characterized in that: the second described conditioning module comprises: the second voltage reduction module, the second rectification module, the second Voltage stabilizing module, described control signal is connected to the input of the second voltage reduction module, the output of the second voltage reduction module connects the input of the second rectification module, the output of the second rectification module connects the input of the second Voltage stabilizing module, the drive end of the output access electronic switch of the second Voltage stabilizing module.
5. according to claim 1 can the Contactless contactor of point operation control, it is characterized in that: the first described conditioning module comprises: the first voltage reduction module, the first rectification module and the first Voltage stabilizing module, driving power connects the input of the first voltage reduction module, the output of the first voltage reduction module connects the input of the first rectification module, the output of the first rectification module connects the input of the first Voltage stabilizing module, the switch module described in output connection of the first Voltage stabilizing module.
6. according to claim 1 can the Contactless contactor of point operation control, it is characterized in that: between any two phase lines of described main contacts output, be parallel with auxiliary contact module.
7. according to claim 6 can the Contactless contactor of point operation control, it is characterized in that: described auxiliary contact module comprises the 3rd voltage reduction module, the 3rd rectification module, the 3rd Voltage stabilizing module and the relay module that connect successively.
8. according to claim 1,2 or 6 can the Contactless contactor of point operation control, it is characterized in that: described main contacts is realized by bidirectional triode thyristor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510065654.7A CN104617934B (en) | 2015-02-09 | 2015-02-09 | It is a kind of can point operation control Contactless contactor |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510065654.7A CN104617934B (en) | 2015-02-09 | 2015-02-09 | It is a kind of can point operation control Contactless contactor |
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| CN104617934A true CN104617934A (en) | 2015-05-13 |
| CN104617934B CN104617934B (en) | 2018-06-05 |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS56169429A (en) * | 1980-05-30 | 1981-12-26 | Yamatake Honeywell Co Ltd | Alternating current contactless switch |
| CN201187466Y (en) * | 2008-04-10 | 2009-01-28 | 上海宝康电子控制工程有限公司 | Heat radiation fan switch device and corresponding heat radiation fan apparatus |
| CN201204570Y (en) * | 2008-01-24 | 2009-03-04 | 上海智大电子有限公司 | AC contactless control switch |
| CN103152020A (en) * | 2013-03-27 | 2013-06-12 | 上海共久电气有限公司 | Alternating-current contactless contactor |
| CN203826290U (en) * | 2014-04-03 | 2014-09-10 | 商晓 | Contactless contactor with auxiliary contact |
| CN204362019U (en) * | 2015-02-09 | 2015-05-27 | 商晓 | A kind of can the Contactless contactor of point operation control |
-
2015
- 2015-02-09 CN CN201510065654.7A patent/CN104617934B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS56169429A (en) * | 1980-05-30 | 1981-12-26 | Yamatake Honeywell Co Ltd | Alternating current contactless switch |
| CN201204570Y (en) * | 2008-01-24 | 2009-03-04 | 上海智大电子有限公司 | AC contactless control switch |
| CN201187466Y (en) * | 2008-04-10 | 2009-01-28 | 上海宝康电子控制工程有限公司 | Heat radiation fan switch device and corresponding heat radiation fan apparatus |
| CN103152020A (en) * | 2013-03-27 | 2013-06-12 | 上海共久电气有限公司 | Alternating-current contactless contactor |
| CN203826290U (en) * | 2014-04-03 | 2014-09-10 | 商晓 | Contactless contactor with auxiliary contact |
| CN204362019U (en) * | 2015-02-09 | 2015-05-27 | 商晓 | A kind of can the Contactless contactor of point operation control |
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| CN104617934B (en) | 2018-06-05 |
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