CN104779844A - Braking circuit of universal motor - Google Patents
Braking circuit of universal motor Download PDFInfo
- Publication number
- CN104779844A CN104779844A CN201510164195.8A CN201510164195A CN104779844A CN 104779844 A CN104779844 A CN 104779844A CN 201510164195 A CN201510164195 A CN 201510164195A CN 104779844 A CN104779844 A CN 104779844A
- Authority
- CN
- China
- Prior art keywords
- motor
- contactor
- coil
- rotor
- stator
- 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.)
- Granted
Links
Landscapes
- Stopping Of Electric Motors (AREA)
- Control Of Ac Motors In General (AREA)
Abstract
The invention provides a braking circuit of a universal motor. The braking circuit which is simple in structure, reasonable in design and fast and reliable in braking comprises a motor stator excitation unit, a motor rotor energy consumption loop and a delay control unit, wherein forward contactors TX and reversing contactors CX are arranged on a control loop of the universal motor; one end of a rotor coil TQ of the motor is connected with a power supply through a first normally open contact of one forward contactor TX or one reversing contactor CX, and the other end is connected in series with a stator coil RS of the motor through a second normally open contact of the forward contactor TX or the reversing contactor CX and then is connected with the power supply; the motor stator excitation unit comprises the stator coil RS of the motor, a normally closed contact of a first forward contactor and a normally closed contact of a first reversing contactor, and the stator coil RS of the motor, the normally closed contact of the first forward contactor and the normally closed contact of the first reversing contactor are connected in series and then connected to two ends of the power supply; the motor rotor energy consumption loop comprises the rotor coil TQ of the motor as well as a normally closed contact of a second forward contactor, a normally closed contact of a second reversing contactor and an energy consumption resistor R2 which are connected with the rotor coil TQ in series; the delay control unit comprises a delay SJ.
Description
Technical field
The present invention relates to circuit for controlling motor, be specially a kind of braking circuit of series machine.
Background technology
Electromotor operating mechanism is the power-equipment of actuating high voltage isolator, high voltage ground switch action, motor in mechanism is rotated by deceleration device lead agency output shaft, and then the machine driving connecting rod by being connected with output shaft, contact on Switch main body is done point, motion of closing a floodgate, point, close a floodgate put in place after, travel switch in mechanism disconnects and controls power supply, and motor stalls, completes a deciliter actuating.
Due to the existence of motor rotatory inertia, motor after power failure still can continue to rotate the regular hour, for ensureing the accurate of mechanism's output corner, mechanism driving structure is all designed with mechanical stop limiter, if but inertia is excessive, the transmission crank arm in mechanism will be made to clash mechanical stop limiter, damage certain link of transmission.For reducing the inertia even eliminated after motor power-off, brake measure is taked to be necessary in the moment of power-off to motor.In the middle of prior art, the braking technology of three phase alternating current motor is more, but braking technology not yet openly relevant in single-phase series motor.
Summary of the invention
For problems of the prior art, the invention provides a kind of structure simple, reasonable in design, can fast braking, brake the braking circuit of reliable series machine.
The present invention is achieved through the following technical solutions:
The braking circuit of a kind of series machine of the present invention, comprises motor stator energization unit, rotor power consumption loop and delays time to control unit;
The control loop of series machine is provided with the positive contactor TX for rotating and reversion contactor CX; Rotor coil TQ one end of motor is connected with power supply through first normally opened contact of positive contactor TX or reversion contactor CX, and the other end is connected power supply after reversion contactor CX or positive second normally opened contact of contactor TX connect with the stator coil RS of motor;
Motor stator energization unit is connected to the stator coil RS of the motor of both ends of power, the first positive contactor normally-closed contact and the first reversion contactor normally-closed contact after comprising series connection;
Rotor power consumption loop comprises the rotor coil TQ of motor, and second of series connection with it the positive contactor normally-closed contact, the second reversion contactor normally-closed contact and energy consumption resistor R2;
Delays time to control unit comprises delayer SJ, and delayer coil is connected to both ends of power, connects with the stator coil RS in motor stator energization unit in delayer contact; The circuit that delayer coil one end is connected with power supply is parallel with respectively the 3rd normally opened contact of the contactor CX and positive contactor TX that reverses.
Preferably, the divider resistance R1 connected with the stator coil RS in motor stator energization unit is also comprised.
Preferably, the electric current pole changer Q1 being connected on rotor power consumption rotor coil TQ two ends, loop respectively is also comprised.
Compared with prior art, the present invention has following useful technique effect:
Braking circuit of the present invention, by the moment in motor power-off, the stator coil be originally serially connected and rotor coil are disconnected by the normally opened contact of contactor, simultaneously by time-delay relay by delayed for stator coil power-off time rotor power-off certain hour, stator still has certain magnetic field during this period of time, and moment after a loss of power accesses an energy consumption resistor by rotor power consumption loop in rotor coil, still electromotive force is produced under the influence of a magnetic field at the rotor rotated after power-off, generation current in the power consumption loop that rotor coil and energy consumption resistor are formed, the kinetic transformation rotated by rotor is heat energy, by energy ezpenditure, motor is stopped the rotation rapidly.Braking circuit of the present invention does not participate in work in motor normally works, but in the moment of motor power-off, the kinetic transformation rotated by rotor by conversing contactor and delayer is electric energy, and then be converted to heat energy realization braking, novel in design, circuit is simple, moderate cost, reliable operation.
Further, can be good at forming protection to stator coil by the setting of divider resistance, make it can not transship damage when being directly connected with power supply, fail safe is high, working stability.
Further, by the setting of electric current pole changer, the sense of current that can consume energy in loop to rotor regulates and changes, and the electric current that can produce with rotation is formed and coordinates, and better improves effect and the efficiency of braking.
Accompanying drawing explanation
Fig. 1 is the stator and rotor control connection figure of braking circuit described in example of the present invention.
Fig. 2 is the control connection figure of the delayer described in example of the present invention.
In figure: the stator coil that the rotor coil that SJ is delayer, TX is positive contactor, CX is reversion contactor, R1 is divider resistance, R2 is energy consumption resistor, TQ is motor, Rs are motor, Q1 are electric current pole changer.
Embodiment
Below in conjunction with specific embodiment, the present invention is described in further detail, and the explanation of the invention is not limited.
Circuit of the present invention, as shown in Figure 1, it comprises delayer SJ, rotor coil TQ, stator coil Rs, divider resistance R1, energy consumption resistor R2, electric current pole changer Q1.Wherein motor stator energization unit comprises the stator coil Rs of motor, divider resistance R1, first normally-closed contact of forward and backward contactor CX, TX, and the delayed contact of delayer SJ, with power sources in series excitation loop.Described rotor energy consumption loop comprises the rotor coil TQ of motor, energy consumption resistor R2, electric current pole changer Q1, second normally-closed contact of forward and backward contactor CX, TX.The control loop of series machine is provided with the positive contactor TX for rotating and reversion contactor CX; Rotor coil TQ one end of motor is connected with power supply through first normally opened contact of positive contactor TX or reversion contactor CX, and the other end is connected power supply after reversion contactor CX or positive second normally opened contact of contactor TX connect with the stator coil RS of motor.
Wherein, as shown in Figure 2, delays time to control unit comprises delayer SJ, and forward and backward contactor CX, TX the 3rd normally opened contact form.Delayer coil is connected to both ends of power, connects with the stator coil RS in motor stator energization unit in delayer contact; The circuit that delayer coil one end is connected with power supply is parallel with respectively the 3rd normally opened contact of the contactor CX and positive contactor TX that reverses.
Motor when normally working, as Fig. 1, electrical contact device CX or TX energized action, namely normally opened contact closes, and makes coil of stator of motor RS, connects with rotor coil TQ, and CX or TX normally-closed contact disconnects, then make coil of stator of motor RS and divider resistance R1 disconnect, rotor coil TQ and energy consumption resistor R2 disconnects, thus motor is normally worked, meanwhile, as Fig. 2, delayer SJ works due to the normally opened contact action of CX or TX, and the power cut off delay normally opened contact of SJ closes at once.
During motor braking, as Fig. 1, i.e. electrical contact device CX or TX power-off, normally opened contact resets, make coil of stator of motor RS, disconnect with rotor coil TQ, as Fig. 2, CX or TX normally opened contact resets, delayer SJ is triggered, as Fig. 1, disconnect after the normally opened contact timing closing of SJ, and CX or TX normally-closed contact resets, then make coil of stator of motor RS and divider resistance R1 and power supply connect and form loop, and due to the work of delayer SJ, cutoff circuit after time delay, namely motor is when braking, stator produces the excitation of time delay, and rotor coil TQ and energy consumption resistor R2 connects and forms loop, make rotor coil in the magnetic field that stator coil produces, rotate generating, achieve energy-consumption braking.
Above example can not depart under the scope that aim of the present invention and claim protect, and can also make a lot of form, these all belong within protection of the present invention.
Claims (3)
1. a braking circuit for series machine, is characterized in that, comprises motor stator energization unit, rotor power consumption loop and delays time to control unit;
The control loop of series machine is provided with the positive contactor TX for rotating and reversion contactor CX; Rotor coil TQ one end of motor is connected with power supply through first normally opened contact of positive contactor TX or reversion contactor CX, and the other end is connected power supply after reversion contactor CX or positive second normally opened contact of contactor TX connect with the stator coil RS of motor;
The stator coil RS of the motor of both ends of power, the first positive contactor normally-closed contact and the first reversion contactor normally-closed contact is connected to after described motor stator energization unit comprises series connection;
Described rotor power consumption loop comprises the rotor coil TQ of motor, and second of series connection with it the positive contactor normally-closed contact, the second reversion contactor normally-closed contact and energy consumption resistor R2;
Described delays time to control unit comprises delayer SJ, and delayer coil is connected to both ends of power, connects with the stator coil RS in motor stator energization unit in delayer contact; The circuit that delayer coil one end is connected with power supply is parallel with respectively the 3rd normally opened contact of the contactor CX and positive contactor TX that reverses.
2. the braking circuit of a kind of series machine according to claim 1, is characterized in that, also comprises the divider resistance R1 connected with the stator coil RS in motor stator energization unit.
3. the braking circuit of a kind of series machine according to claim 1, is characterized in that, also comprises the electric current pole changer Q1 being connected on rotor power consumption rotor coil TQ two ends, loop respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510164195.8A CN104779844B (en) | 2015-04-08 | 2015-04-08 | A kind of braking circuit of single-phase series motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510164195.8A CN104779844B (en) | 2015-04-08 | 2015-04-08 | A kind of braking circuit of single-phase series motor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104779844A true CN104779844A (en) | 2015-07-15 |
| CN104779844B CN104779844B (en) | 2018-02-23 |
Family
ID=53621130
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510164195.8A Active CN104779844B (en) | 2015-04-08 | 2015-04-08 | A kind of braking circuit of single-phase series motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104779844B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108987136A (en) * | 2017-06-05 | 2018-12-11 | 河南平芝高压开关有限公司 | A kind of switch operating mechanism |
| CN110022738A (en) * | 2016-10-20 | 2019-07-16 | 维他拌管理有限公司 | The motor to slow down with induction type |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5708333A (en) * | 1995-03-11 | 1998-01-13 | Robert Bosch Gmbh | Series-wound motor with a braking element |
| CN201656892U (en) * | 2010-05-11 | 2010-11-24 | 上海海事大学 | Small-sized series direct-current motor controller based on microprocessor |
| CN202068364U (en) * | 2010-11-11 | 2011-12-07 | 铁道第三勘察设计院集团有限公司 | Electronic brake for single-phase high-speed motor |
| CN202121451U (en) * | 2011-07-14 | 2012-01-18 | 浙江皇冠电动工具制造有限公司 | Separately excited brake adjustable series machine |
-
2015
- 2015-04-08 CN CN201510164195.8A patent/CN104779844B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5708333A (en) * | 1995-03-11 | 1998-01-13 | Robert Bosch Gmbh | Series-wound motor with a braking element |
| CN201656892U (en) * | 2010-05-11 | 2010-11-24 | 上海海事大学 | Small-sized series direct-current motor controller based on microprocessor |
| CN202068364U (en) * | 2010-11-11 | 2011-12-07 | 铁道第三勘察设计院集团有限公司 | Electronic brake for single-phase high-speed motor |
| CN202121451U (en) * | 2011-07-14 | 2012-01-18 | 浙江皇冠电动工具制造有限公司 | Separately excited brake adjustable series machine |
Non-Patent Citations (2)
| Title |
|---|
| 王世锟: "《维修电工操作1000个怎么办》", 31 May 2014 * |
| 陈定方: "《现代机械设计师手册》", 30 April 2014 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110022738A (en) * | 2016-10-20 | 2019-07-16 | 维他拌管理有限公司 | The motor to slow down with induction type |
| CN110022738B (en) * | 2016-10-20 | 2022-07-29 | 维他拌管理有限公司 | Motor with induction type speed reduction |
| CN108987136A (en) * | 2017-06-05 | 2018-12-11 | 河南平芝高压开关有限公司 | A kind of switch operating mechanism |
| CN108987136B (en) * | 2017-06-05 | 2019-10-11 | 河南平芝高压开关有限公司 | A kind of switch operating mechanism |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104779844B (en) | 2018-02-23 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104779844A (en) | Braking circuit of universal motor | |
| CN104021976A (en) | Permanent magnetic vacuum circuit breaker | |
| CN103560056B (en) | Primary cut-out is brushless coil excitation direct current machine operating mechanism | |
| CN103560055A (en) | Permanent magnet variable air gap limited rotation angle motor operation mechanism of high-voltage breaker | |
| CN202602574U (en) | Positive-and-negative-rotation switchover soft start control device | |
| CN202634337U (en) | Three-phase motor brake apparatus for electric actuator | |
| CN204013313U (en) | A kind of double winding regeneration field switch reluctance motor | |
| CN102447436B (en) | DC brushed motor self-locking control method and self-locking circuit thereof | |
| CN202475338U (en) | Three-station isolating switch operating mechanism direct current motor short circuit braking circuit | |
| CN203423090U (en) | Intelligent ring main unit with voltage protection function | |
| CN202977313U (en) | Rotatory-inertia-moment-increasing rotating type armature component for magnetic latching relay | |
| CN202602578U (en) | Three-phase motor short circuit brake control circuit with tap switches | |
| CN204886142U (en) | Motor phase loss protection circuit | |
| CN204578411U (en) | Motor electromagnetic circuit damping control circuit | |
| JP6340153B2 (en) | Electric operating device | |
| CN203491122U (en) | Double power supply switch | |
| CN203674117U (en) | High voltage breaker permanent magnetic variable air gap limited angle motor operation mechanism | |
| CN109541456A (en) | A kind of electrical power execution system of power switchgear | |
| CN204068776U (en) | A kind of commercial refrigeration compressor electric motor mutual-inductance contactless current starter | |
| CN201601038U (en) | Permanent magnet circuit breaker capable of being switched manually when there is non external power | |
| RU2722793C1 (en) | Electric power generation device | |
| CN2770074Y (en) | Rotary magnetic relay | |
| CN208539729U (en) | A kind of brake gear of marine low speed diesel engine turning engine | |
| CN209184517U (en) | A kind of low pressure pitch motor brake control relay failure protective device | |
| CN209120029U (en) | Energy conversion device and power-equipment including it |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| EXSB | Decision made by sipo to initiate substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20230103 Address after: No.24, gazelle Valley, high tech Zone, Xi'an, Shaanxi 710077 Patentee after: XI'AN XD HIGH VOLTAGE SWITCHGEAR OPERATING MECHANISM CO.,LTD. Patentee after: CHINA XD ELECTRIC Co.,Ltd. Address before: 710075 Shaanxi city of Xi'an Province Tang Hing Road No. 7 Patentee before: CHINA XD ELECTRIC Co.,Ltd. |