CN203645584U - Positive-negative rotating control circuit of three-phase AC motor - Google Patents
Positive-negative rotating control circuit of three-phase AC motor Download PDFInfo
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- CN203645584U CN203645584U CN201320860816.2U CN201320860816U CN203645584U CN 203645584 U CN203645584 U CN 203645584U CN 201320860816 U CN201320860816 U CN 201320860816U CN 203645584 U CN203645584 U CN 203645584U
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- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims abstract description 38
- 229910052710 silicon Inorganic materials 0.000 claims abstract description 38
- 239000010703 silicon Substances 0.000 claims abstract description 38
- 230000003111 delayed effect Effects 0.000 claims description 14
- 239000003990 capacitor Substances 0.000 claims description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000001681 protective effect Effects 0.000 description 2
- 230000009131 signaling function Effects 0.000 description 2
- 208000033999 Device damage Diseases 0.000 description 1
- 230000002457 bidirectional effect Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 230000005622 photoelectricity Effects 0.000 description 1
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Abstract
The utility model discloses a positive-negative rotating control circuit of a three-phase AC motor. The control circuit comprises a double-way time delay circuit, an interlock circuit, an optical-coupler trigger circuit, a silicon controlled rectifier control circuit and an input output circuit; the double-way time delay circuit, the interlock circuit, the optical-coupler trigger circuit, the silicon controlled rectifier control circuit and the input output circuit are connected in series; the double-way time delay circuit and the interlock circuit are both accessed with a positive-rotating control signal input line Vcc_cw and a negative-rotating control signal input line Vcc_ccw; and output ends of the input output circuit are connected with the three-phase AC motor. The output control is the silicon controlled rectifier control circuit, switch performance possessed by an unidirectional silicon controlled rectifier is fully used, and the positive-negative rotating control circuit had the advantages of no contact, the long service life, strong stability, strong reliability and low cost.
Description
Technical field
The utility model belongs to three phase alternating current motor control technology field, relates to a kind of three phase alternating current motor positive and reverse rotation control circuit.
Background technology
Motor positive and inverse control device is control appliance important in Electromechanical Control.At present, typical motor positive and inverse control device is to realize by the time relay, A.C. contactor interlocking, simple in structure, but poor stability easily produces contact spark in rotating handoff procedure, and phase fault, causes device damage, and environmental suitability is also poor; Also there is the controllable silicon, unidirectional thyristor, bidirectional thyristor of employing to there is switching characteristic, such scheme is improved, reach contactless, switch on and off controlled circuit to no-spark, but still having much room for improvement aspect anti-interference and security reliability.
Summary of the invention
In order to solve in current motor positive and inverse control, rotating switching moment is very easily caused power supply phase fault, motor damage technical problem.The utility model object is to provide a kind of three phase alternating current motor positive and reverse rotation control circuit, and that this control circuit is realized is contactless, switch on and off controlled circuit to no-spark, safe, realizes the multiple protective of the positive anti-switching of three phase alternating current motor.
The utility model object is achieved through the following technical solutions:
A kind of three phase alternating current motor positive and reverse rotation control circuit, is characterized in that: this control circuit comprises way delay circuit, interlock circuit, optocoupler circuits for triggering, silicon controlled control circuit and imput output circuit; Described way delay circuit, interlock circuit, optocoupler circuits for triggering, silicon controlled control circuit, imput output circuit are connected in series in order, described way delay circuit and described interlock circuit all access forward control signal input line Vcc_cw and reverse control signal input line Vcc_ccw, and the output of described imput output circuit connects three phase alternating current motor.
In the utility model, described way delay circuit comprises forward delay circuit and reversion delay circuit, be two same circuits modules, it comprises delay capacitor, voltage comparator, input comprises forward control signal interface, reverse control signal interface, and output is voltage comparator level output interface; The forward control signal interface of described forward delay circuit, reverse control signal interface meet respectively forward control signal input line Vcc_cw, reverse control signal input line Vcc_ccw, and output interface meets forward time delayed signal line OUTPUT_CW; The forward control signal interface of described reversion delay circuit, reverse control signal interface meet respectively reverse control signal input line Vcc_ccw, forward control signal input line Vcc_cw, and output interface meets reversion time delayed signal line OUTPUT_CCW.
Described interlock circuit comprises forward efficient circuit and reversion efficient circuit, be two same circuits modules, input comprises the signal wire interface that forward control signal interface, reverse control signal interface and described way delay circuit are inputted, and output comprises effective control signal output line interface; The signal wire interface that forward control signal interface, reverse control signal interface and the described way delay circuit of described forward efficient circuit are inputted meets respectively forward control signal input line Vcc_cw, reverse control signal input line Vcc_ccw, forward time delayed signal line OUTPUT_CW, and output interface meets forward useful signal line Optical_cw; The signal wire interface that forward control signal interface, reverse control signal interface and the described way delay circuit of described reversion efficient circuit inputted meets respectively reverse control signal input line Vcc_ccw, forward control signal input line Vcc_cw, reversion time delayed signal line OUTPUT_CCW, and output interface meets reversion useful signal line Optical_ccw.
Described optocoupler circuits for triggering comprise the forward optocoupler circuits for triggering and the reversion optocoupler circuits for triggering that are connected described reversion useful signal line Optical_ccw that connect described forward useful signal line Optical_cw, two circuit modules are identical, are composed in series by two groups of resistance, optocouplers of parallel connection; Described forward optocoupler circuits for triggering connect, described reversion optocoupler circuits for triggering connect described silicon controlled control circuit by control line respectively.
Described silicon controlled control circuit comprises four kinds of identical control circuits, wherein connects two groups of composition forward silicon controlled control circuits of described forward optocoupler circuits for triggering, connects two groups of composition reversion silicon controlled control circuits of described reversion optocoupler circuits for triggering; Described silicon controlled control circuit access three-phase alternating current line L1, L2, L3,
In the time that forward silicon controlled control circuit input forward optocoupler circuits for triggering are exported effective control signal, output AC control circuit is L1=U, L2=V, L3=W; In the time that reversion silicon controlled control circuit input reversion optocoupler circuits for triggering are exported effective control signal, output AC control circuit is L1=V, L2=U, L3=W.
The utility model has comprised delay circuit, interlock circuit, optocoupler circuits for triggering, the silicon controlled control circuit of the two-way that rotates and reverse control simultaneously, its input and output photoelectricity isolation, and alternating current passing-zero switching, noiseless to electrical network and digital system, working stability; Utilize electronic switch control break-make; rotating switch time without wearing and tearing; long service life, has the features such as delay effect is good, interlocking is reliable, fail safe is high realizing in the positive and negative handoff procedure of three phase alternating current motor, realize the multiple protective of the positive anti-switching of three phase alternating current motor.
The utility model major advantage is: in the time of forward and reverse switching; by time delay and the complete interlock protection of way delay circuit, interlock circuit; make arbitrary moment can only just or reverse a road signal function in motor, avoid the generation of motor commutation moment phase fault, effectively protect the safety of motor.Output is controlled as silicon controlled control circuit, makes full use of the switch performance that one-way SCR has, and contactless, the long-life, reliable and stable, cost is low.
brief description of the drawings:
Fig. 1 control structure schematic diagram of the present utility model;
embodiment:
Specifically introduce the utility model below in conjunction with accompanying drawing.
Fig. 1 is the utility model control structure schematic diagram, a kind of three phase alternating current motor positive and reverse rotation control circuit, comprise way delay circuit, interlock circuit, optocoupler circuits for triggering, silicon controlled control circuit, imput output circuit, motor, and according to said sequence control connection to motor.Wherein:
Way delay circuit input signal line comprises forward control signal input line Vcc_cw, reverse control signal input line Vcc_ccw, and is all connected to interlock circuit by output forward time delayed signal line OUTPUT_CW, reversion time delayed signal line OUTPUT_CCW.Particularly, this way delay circuit comprises forward delay circuit and reversion delay circuit, is two same circuits modules, comprises delay capacitor, voltage comparator, input comprises forward control signal interface, reverse control signal interface, and output is voltage comparator level output interface.Wherein: the forward control signal interface of forward delay circuit, reverse control signal interface meet respectively forward control signal input line Vcc_cw, reverse control signal input line Vcc_ccw, output interface meets forward time delayed signal line OUTPUT_CW; Forward control signal interface, the reverse control signal interface of reversion delay circuit meet respectively reverse control signal input line Vcc_ccw, forward control signal input line Vcc_cw, and output interface meets reversion time delayed signal line OUTPUT_CCW.
Interlock circuit is except connecting way delay circuit signal line OUTPUT_CW, OUTPUT_CCW, input signal cable also comprises forward control signal input line Vcc_cw, reverse control signal input line Vcc_ccw simultaneously, and is connected and controlled optocoupler circuits for triggering by output forward useful signal line Optical_cw, forward useful signal line Optical_ccw.Particularly, this interlock circuit comprises forward efficient circuit and reversion efficient circuit, be two same circuits modules, formed by multiple triodes, diode and resistance, input comprises the signal wire interface that forward control signal interface, reverse control signal interface and described way delay circuit are inputted, and output comprises effective control signal output line interface.Wherein: the signal wire interface of forward control signal interface, reverse control signal interface and the input of way delay circuit of forward efficient circuit, meet respectively forward control signal input line Vcc_cw, reverse control signal input line Vcc_ccw, forward time delayed signal line OUTPUT_CW, output interface meets forward useful signal line Optical_cw; The signal wire interface of forward control signal interface, reverse control signal interface and the input of way delay circuit of reversion efficient circuit meets respectively reverse control signal input line Vcc_ccw, forward control signal input line Vcc_cw, reversion time delayed signal line OUTPUT_CCW, and output interface meets forward useful signal line Optical_ccw.
Optocoupler circuits for triggering comprise the forward optocoupler circuits for triggering and the reversion optocoupler circuits for triggering that are connected reversion useful signal line Optical_ccw that connect forward useful signal line Optical_cw, two circuit modules are identical, are composed in series by two groups of resistance, optocouplers of parallel connection; Forward optocoupler circuits for triggering connect, reversion optocoupler circuits for triggering connect silicon controlled control circuit by control line respectively.
Silicon controlled control circuit comprises four kinds of identical control circuits, wherein connects two groups of composition forward silicon controlled control circuits of forward optocoupler circuits for triggering, connects two groups of composition reversion silicon controlled control circuits of reversion optocoupler circuits for triggering; Silicon controlled control circuit access three-phase alternating current line L1, L2, L3, in the time that forward silicon controlled control circuit is inputted effective control signal, output AC control circuit is L1=U, L2=V, L3=W, in the time that reversion silicon controlled control circuit input forward optocoupler circuits for triggering are exported effective control signal, output AC control circuit is L1=V, L2=U, L3=W.
Imput output circuit connects by line interface, be L1=V, L2=U, L3=W by L1=U, the L2=V of forward silicon controlled control circuit output in silicon controlled control circuit, L3=W or reversion silicon controlled control circuit output AC control circuit, control connection three phase electric machine, realizes the forward or reverse of three phase electric machine.
The utility model, owing to having comprised delay circuit, interlock circuit, optocoupler circuits for triggering, the silicon controlled control circuit of the two-way that rotates and reverse control simultaneously, has the features such as delay effect is good, interlocking is reliable, fail safe is high.In the time of forward and reverse switching; by time delay and the complete interlock protection of way delay circuit, interlock circuit; make arbitrary moment can only just or reverse a road signal function in motor, while ensureing motor commutation, avoid occurring phase fault, effectively protect the safety of motor; output is controlled as silicon controlled control circuit; make full use of the switch performance that one-way SCR has, contactless, the long-life; reliable and stable, cost is low.
Claims (5)
1. a three phase alternating current motor positive and reverse rotation control circuit, is characterized in that: this control circuit comprises way delay circuit, interlock circuit, optocoupler circuits for triggering, silicon controlled control circuit and imput output circuit; Described way delay circuit, interlock circuit, optocoupler circuits for triggering, silicon controlled control circuit, imput output circuit are connected in series successively, described way delay circuit and interlock circuit all access forward control signal input line Vcc_cw and reverse control signal input line Vcc_ccw, and the output of described imput output circuit connects three phase alternating current motor.
2. three phase alternating current motor positive and reverse rotation control circuit according to claim 1, it is characterized in that: described way delay circuit comprises forward delay circuit and reversion delay circuit, be two same circuits modules, it comprises delay capacitor, voltage comparator, input comprises forward control signal interface, reverse control signal interface, and output is voltage comparator level output interface;
The forward control signal interface of described forward delay circuit, reverse control signal interface meet respectively forward control signal input line Vcc_cw, reverse control signal input line Vcc_ccw, and output interface meets forward time delayed signal line OUTPUT_CW;
The forward control signal interface of described reversion delay circuit, reverse control signal interface meet respectively reverse control signal input line Vcc_ccw, forward control signal input line Vcc_cw, and output interface meets reversion time delayed signal line OUTPUT_CCW.
3. three phase alternating current motor positive and reverse rotation control circuit according to claim 1, it is characterized in that: described interlock circuit comprises forward efficient circuit and reversion efficient circuit, be two same circuits modules, input comprises the signal wire interface that forward control signal interface, reverse control signal interface and described way delay circuit are inputted, and output comprises effective control signal output line interface;
The signal wire interface that forward control signal interface, reverse control signal interface and the described way delay circuit of described forward efficient circuit are inputted meets respectively forward control signal input line Vcc_cw, reverse control signal input line Vcc_ccw, forward time delayed signal line OUTPUT_CW, and output interface meets forward useful signal line Optical_cw;
The signal wire interface that forward control signal interface, reverse control signal interface and the described way delay circuit of described reversion efficient circuit inputted meets respectively reverse control signal input line Vcc_ccw, forward control signal input line Vcc_cw, reversion time delayed signal line OUTPUT_CCW, and output interface meets reversion useful signal line Optical_ccw.
4. three phase alternating current motor positive and reverse rotation control circuit according to claim 1, it is characterized in that: described optocoupler circuits for triggering comprise the forward optocoupler circuits for triggering and the reversion optocoupler circuits for triggering that are connected described reversion useful signal line Optical_ccw that connect described forward useful signal line Optical_cw, two circuit modules are identical, are composed in series by two groups of resistance, optocouplers of parallel connection; Described forward optocoupler circuits for triggering connect, described reversion optocoupler circuits for triggering connect described silicon controlled control circuit by control line respectively.
5. three phase alternating current motor positive and reverse rotation control circuit according to claim 1, it is characterized in that: described silicon controlled control circuit comprises four kinds of identical control circuits, wherein connect two groups of composition forward silicon controlled control circuits of described forward optocoupler circuits for triggering, connect two groups of composition reversion silicon controlled control circuits of described reversion optocoupler circuits for triggering; Described silicon controlled control circuit access three-phase alternating current line L1, L2, L3, in the time that forward silicon controlled control circuit input forward optocoupler circuits for triggering are exported effective control signal, output AC control circuit is L1=U, L2=V, L3=W; In the time that reversion silicon controlled control circuit input reversion optocoupler circuits for triggering are exported effective control signal, output AC control circuit is L1=V, L2=U, L3=W.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320860816.2U CN203645584U (en) | 2013-12-25 | 2013-12-25 | Positive-negative rotating control circuit of three-phase AC motor |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320860816.2U CN203645584U (en) | 2013-12-25 | 2013-12-25 | Positive-negative rotating control circuit of three-phase AC motor |
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| CN203645584U true CN203645584U (en) | 2014-06-11 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201320860816.2U Expired - Lifetime CN203645584U (en) | 2013-12-25 | 2013-12-25 | Positive-negative rotating control circuit of three-phase AC motor |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105159163A (en) * | 2015-08-17 | 2015-12-16 | 河南兵峰电子科技有限公司 | Motor state detection circuit |
| CN106410827A (en) * | 2016-11-05 | 2017-02-15 | 上海大学 | Interphase short-circuit protection circuit of three-phase imbalance adjusting device |
| CN112104296A (en) * | 2020-08-20 | 2020-12-18 | 浙江炬诺电器股份有限公司 | Electrode stator multifunctional controller and setting method thereof |
-
2013
- 2013-12-25 CN CN201320860816.2U patent/CN203645584U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105159163A (en) * | 2015-08-17 | 2015-12-16 | 河南兵峰电子科技有限公司 | Motor state detection circuit |
| CN106410827A (en) * | 2016-11-05 | 2017-02-15 | 上海大学 | Interphase short-circuit protection circuit of three-phase imbalance adjusting device |
| CN106410827B (en) * | 2016-11-05 | 2019-06-25 | 上海大学 | A kind of phase fault protection circuit of three-phase imbalance regulating device |
| CN112104296A (en) * | 2020-08-20 | 2020-12-18 | 浙江炬诺电器股份有限公司 | Electrode stator multifunctional controller and setting method thereof |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140611 |
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| CX01 | Expiry of patent term |