CN205265585U - Irreversible bidirectional thyristor system of three -phase - Google Patents
Irreversible bidirectional thyristor system of three -phase Download PDFInfo
- Publication number
- CN205265585U CN205265585U CN201521123579.7U CN201521123579U CN205265585U CN 205265585 U CN205265585 U CN 205265585U CN 201521123579 U CN201521123579 U CN 201521123579U CN 205265585 U CN205265585 U CN 205265585U
- Authority
- CN
- China
- Prior art keywords
- bidirectional thyristor
- irreversible
- chip microcomputer
- phase
- electrode
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Landscapes
- Control Of Eletrric Generators (AREA)
Abstract
The utility model provides an irreversible bidirectional thyristor system of three -phase, including major loop and control circuit, the major loop includes electric leakage circuit breaker QF, bidirectional thyristor, and the first electricity level A1 of bidirectional thyristor connects in AC motor M's stator winding, has met normally open contact KA between the control stage G of bidirectional thyristor and the second electrode A2, and the second electrode A2 of bidirectional thyristor connects the circuit breaker QF that leaks electricity, control circuit is equipped with the triode including the rectifier circuit, power conversion module, singlechip and the relay coil KA that connect gradually between and the singlechip. The utility model discloses the major loop adopts the bidirectional thyristor to replace the contactor, have energy -conservation, sparkless, longe -lived, maintain portably, be fit for the use of the blast proof occasion of needs, control circuit adopts the singlechip to control, and the reliability is high, the strong convenient to use of interference killing feature, and the programming is simple, powerful, the maintenance work volume is little, and easy maintenance is with low costs, the practicality is strong.
Description
Technical field
The utility model belongs to automation field, especially relates to the irreversible bidirectional thyristor of a kind of three-phaseSystem.
Background technology
Traditional machine operation process adopts electromagnetic contactor control, and electromagnetic contactor is easily long service timeCause electric leakage, occur spark, the situation such as the life-span is short, and need pulse-triggered, the anti-interference energy of systemPower is low, and system complex is safeguarded inconvenience, and production cost is high, along with intelligent development is more and more faster, and profitBy intelligentized mode control machine operation, realizing automation control is also the focus that people study.
Summary of the invention
In view of this, the utility model is intended to propose the irreversible bidirectional thyristor system of a kind of three-phase.
For achieving the above object, the technical solution of the utility model is achieved in that
The irreversible bidirectional thyristor system of a kind of three-phase, comprises major loop and control loop,
Described major loop comprises RCCB QF, bidirectional thyristor, the first electricity of described bidirectional thyristorLevel A1 is connected in the stator winding of alternating current generator M, the controlled stage G of described bidirectional thyristor and the second electricityBetween utmost point A2, be connected to relay normally open contact KA, the second electrode A 2 of described bidirectional thyristor connects leaksElectrical circuit breakers QF;
Described control loop comprises rectification circuit, power transfer module, the single-chip microcomputer connecting successively and continuesElectric apparatus coil KA, is provided with triode between described relay coil KA and single-chip microcomputer, and described single-chip microcomputer connectsMeet switch S B1, switch S B2.
Further, described alternating current generator M is three phase alternating current motor, and each stator winding one end connects respectivelyIn the first electricity grade A1 of first, second, third bidirectional thyristor.
Further, between described bidirectional thyristor the first electrode A 1 and the second electrode A 1, being connected to capacitance-resistance inhalesRegain road.
Further, described single-chip microcomputer is AT89C51.
Further, in described single-chip microcomputer, be provided with timer.
Further, described power transfer module is 7805 chips.
With respect to prior art, the irreversible bidirectional thyristor system of a kind of three-phase described in the utility model toolThere is following advantage: the utility model major loop adopts bidirectional thyristor to replace contactor, has energy-conservation, nothingSpark, life-span length, easy maintenance, be applicable to the explosion-proof occasion of needs and use; Control loop adopts single-chip microcomputerControl, reliability is high, and antijamming capability is easy to use by force, and programming is simple, powerful, maintenanceWorkload is little, easy to maintenance, and cost is low, practical.
Brief description of the drawings
The accompanying drawing that forms a part of the present utility model is used to provide further understanding of the present utility model,Schematic description and description of the present utility model is used for explaining the utility model, does not form this realityWith novel improper restriction. In the accompanying drawings:
Fig. 1 is the structure of the irreversible bidirectional thyristor system of a kind of three-phase described in the utility model embodimentSchematic diagram.
Detailed description of the invention
It should be noted that, in the situation that not conflicting, in embodiment and embodiment in the utility modelFeature can mutually combine.
In description of the present utility model, it will be appreciated that term " " center ", " longitudinally ", " horizontal strokeTo ", " on ", D score, 'fornt', 'back', " left side ", " right side ", " vertically ", " waterFlat ", orientation or the position relationship of indicating such as " top ", " end ", " interior ", " outward " they are based on attachedOrientation shown in figure or position relationship, be only the utility model and simplified characterization for convenience of description, and notBe instruction or the hint device of indication or element must there is specific orientation, with specific orientation structure andOperation, therefore can not be interpreted as restriction of the present utility model. In addition term " first ", " second ",For describing object, and can not be interpreted as instruction or hint relative importance or the implicit indication that indicates Deng onlyThe quantity of the technical characterictic showing. Thus, the feature that is limited with " first ", " second " etc. can be expressedOr impliedly comprise one or more these features. In description of the present utility model, unless separately hadIllustrate, the implication of " multiple " is two or more.
In description of the present utility model, it should be noted that, unless otherwise clearly defined and limited,Term " installation ", " being connected ", " connection " should be interpreted broadly, and for example, can be to be fixedly connected with,Also can be to removably connect, or connect integratedly; Can be mechanical connection, can be also electrical connection;Can be to be directly connected, also can indirectly be connected by intermediary, can be the company of two element internalsLogical. For the ordinary skill in the art, can understand above-mentioned term at this by concrete conditionConcrete meaning in utility model.
Describe below with reference to the accompanying drawings and in conjunction with the embodiments the utility model in detail.
As shown in Figure 1, the irreversible bidirectional thyristor system of a kind of three-phase, comprises major loop and control loop,Described major loop comprises RCCB QF, bidirectional thyristor, the first electricity level of described bidirectional thyristorA1 is connected in the stator winding of alternating current generator M, the controlled stage G of described bidirectional thyristor and the second electrodeBetween A2, be connected to relay normally open contact KA, it is disconnected that the second electrode A 2 of described bidirectional thyristor connects electric leakageRoad device QF; Described control loop comprise successively the rectification circuit that connects, power transfer module, single-chip microcomputer withAnd relay coil KA, between described relay coil KA and single-chip microcomputer, be provided with triode, described monolithicMachine connecting valve SB1, switch S B2.
Described alternating current generator M is three phase alternating current motor, and each stator winding one end is connected to first,Two, first of the 3rd bidirectional thyristor the electricity grade A1.
Between described bidirectional thyristor the first electrode A 1 and the second electrode A 1, be connected to resistance-capacitance absorption loop.
Described single-chip microcomputer is AT89C51.
In described single-chip microcomputer, be provided with timer.
Described power transfer module is 7805 chips.
The utility model has been realized the direct startup to cage-shaped motor and has been stopped, and SB1 is used for controlling motor and turnsMoving, SB2 is used for controlling motor to be stopped, and power supply signal, through rectification circuit, is converted to direct current alternating currentElectricity, is that 5V volt voltage is powered to single-chip microcomputer through 7805 chips by 12V voltage transitions, and single-chip microcomputer passes throughTriode drives relay coil KA closure, KA normally opened contact closure in major loop, and machine operation, singleIn sheet machine, be also provided with timer, can the automatic control motor working time.
The foregoing is only preferred embodiment of the present utility model, not new in order to limit this practicalityType, all within spirit of the present utility model and principle, any amendment of doing, be equal to replacement, improveDeng, within all should being included in protection domain of the present utility model.
Claims (6)
1. the irreversible bidirectional thyristor system of three-phase, is characterized in that: comprise major loop and controlLoop,
Described major loop comprises RCCB QF, bidirectional thyristor, the first electricity of described bidirectional thyristorLevel A1 is connected in the stator winding of alternating current generator M, the controlled stage G of described bidirectional thyristor and the second electricityBetween utmost point A2, be connected to relay normally open contact KA, the second electrode A 2 of described bidirectional thyristor connects leaksElectrical circuit breakers QF;
Described control loop comprises rectification circuit, power transfer module, the single-chip microcomputer connecting successively and continuesElectric apparatus coil KA, is provided with triode between described relay coil KA and single-chip microcomputer; Described single-chip microcomputer connectsMeet switch S B1, switch S B2.
2. the irreversible bidirectional thyristor system of a kind of three-phase according to claim 1, its feature existsIn: described alternating current generator M is three phase alternating current motor, and each stator winding one end is connected to first,Two, first of the 3rd bidirectional thyristor the electricity grade A1.
3. the irreversible bidirectional thyristor system of a kind of three-phase according to claim 1, its feature existsIn: between described bidirectional thyristor the first electrode A 1 and the second electrode A 1, be connected to resistance-capacitance absorption loop.
4. the irreversible bidirectional thyristor system of a kind of three-phase according to claim 1, its feature existsIn: described single-chip microcomputer is AT89C51.
5. the irreversible bidirectional thyristor system of a kind of three-phase according to claim 1, its feature existsIn: in described single-chip microcomputer, be provided with timer.
6. the irreversible bidirectional thyristor system of a kind of three-phase according to claim 1, its feature existsIn: described power transfer module is 7805 chips.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521123579.7U CN205265585U (en) | 2015-12-28 | 2015-12-28 | Irreversible bidirectional thyristor system of three -phase |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521123579.7U CN205265585U (en) | 2015-12-28 | 2015-12-28 | Irreversible bidirectional thyristor system of three -phase |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205265585U true CN205265585U (en) | 2016-05-25 |
Family
ID=56007088
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201521123579.7U Active CN205265585U (en) | 2015-12-28 | 2015-12-28 | Irreversible bidirectional thyristor system of three -phase |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205265585U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105471326A (en) * | 2015-12-28 | 2016-04-06 | 天津市福锐达电气成套设备工程有限公司 | Starting and stopping control system of three-phase irreversible motor |
-
2015
- 2015-12-28 CN CN201521123579.7U patent/CN205265585U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105471326A (en) * | 2015-12-28 | 2016-04-06 | 天津市福锐达电气成套设备工程有限公司 | Starting and stopping control system of three-phase irreversible motor |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103138674B (en) | High-power brushless double-fed motor variable frequency speed control system and control method | |
| CN104065154A (en) | Frequency changer emergency power supply system | |
| CN103023344A (en) | Universal smart grid power electronic device | |
| CN103595037B (en) | Three-phase alternating current phase sequence error correction device | |
| CN209545434U (en) | Circuit of power factor correction and air conditioner | |
| CN205265585U (en) | Irreversible bidirectional thyristor system of three -phase | |
| CN101924440B (en) | Synchronous motor brushless excitation device realized by adopting switching power supply | |
| CN202210703U (en) | Induction charging device, non-contact charging system and electric automobile | |
| CN205195255U (en) | Control circuit used for controlling and protecting switching device | |
| CN204205653U (en) | A kind of charging pile with solar panel | |
| CN203536956U (en) | Three-phase alternating current phase sequence error correction device | |
| CN202931210U (en) | Power supply unit for testing of electric locomotive | |
| CN206389304U (en) | Motor electromagnetic start system | |
| CN203911591U (en) | Monostable pole-mounted permanent magnetic mechanism circuit breaker operation pulse control device | |
| CN205265583U (en) | Reversible bidirectional thyristor induction motor system of three -phase with dynamic braking | |
| CN204668986U (en) | A kind of battery charging and discharging device | |
| CN205304675U (en) | Reversible bidirectional thyristor induction motor system of three -phase | |
| CN201781392U (en) | Device for realizing brushless excitation of synchronous motor by switching power supply | |
| CN206060346U (en) | High-power inverter dual power supply seamless switching device | |
| CN201623379U (en) | Operation controller of switch cabinet | |
| CN104638748A (en) | Intelligent-switchover charging control device for electric vehicle | |
| CN205791561U (en) | A kind of microgrid | |
| CN106160157B (en) | A kind of generating equipment applied on rail side | |
| CN204465119U (en) | Intelligence for electric motor car switches battery charge controller | |
| CN105529974B (en) | A kind of diesel locomotive auxiliary generator exciter control system and control method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |