CN104733227A - Alternating-current contactor protection device and protection method thereof - Google Patents

Alternating-current contactor protection device and protection method thereof Download PDF

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Publication number
CN104733227A
CN104733227A CN201310696216.1A CN201310696216A CN104733227A CN 104733227 A CN104733227 A CN 104733227A CN 201310696216 A CN201310696216 A CN 201310696216A CN 104733227 A CN104733227 A CN 104733227A
Authority
CN
China
Prior art keywords
contactor
motor
adhesive
treatment system
power supply
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.)
Pending
Application number
CN201310696216.1A
Other languages
Chinese (zh)
Inventor
甄力
席海成
王锴
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
SHANGHAI INVT INDUSTRY TECHNOLOGY CO., LTD.
Original Assignee
SUZHOU KINWAY TECHNOLOGIES Inc
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by SUZHOU KINWAY TECHNOLOGIES Inc filed Critical SUZHOU KINWAY TECHNOLOGIES Inc
Priority to CN201310696216.1A priority Critical patent/CN104733227A/en
Publication of CN104733227A publication Critical patent/CN104733227A/en
Pending legal-status Critical Current

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Classifications

    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01HELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H47/00Circuit arrangements not adapted to a particular application of the relay and designed to obtain desired operating characteristics or to provide energising current
    • H01H47/02Circuit arrangements not adapted to a particular application of the relay and designed to obtain desired operating characteristics or to provide energising current for modifying the operation of the relay

Abstract

The invention relates to an alternating-current contactor protection device and a protection method thereof. The protection device comprises a power supply, a motor starting controller, a motor steering controller, a motor voltage controller, and a motor. The input end of the motor starting controller is connected with the output end of the power supply. The output end of the motor starting controller is connected with the input end of the motor steering controller. The output end of the motor steering controller is connected with a control part of the motor. The output end of the motor voltage controller is connected with a power part of the motor. By reducing the number of pull-in and disconnection times of an alternating-current contactor, the number of arcing times of the alternating-current contactor is reduced, and the service life of the alternating-current contactor is prolonged.

Description

A kind of protective device of A.C. contactor and guard method thereof
Technical field
The present invention relates to a kind of protective device and guard method thereof of A.C. contactor.
Background technology
At present, loom system, in running, has forward crawl and reverse crawl, and each crawl all can have the action of A.C. contactor adhesive and disconnection, in A.C. contactor adhesive and disconnection process, there will be phenomenon of arc discharge.When loom occurs that abnormal (as disconnected in weft yarn etc. situation) motor can shut down automatically, stop, to normal operation again, forward crawl and the operation of reverse crawl to be carried out frequently, causing A.C. contactor frequent arcing that A.C. contactor is damaged from motor.
Therefore, a kind of protective device and guard method thereof of A.C. contactor is needed badly.
Summary of the invention
The object of the invention is the defect overcoming prior art existence, a kind of protective device and guard method thereof of A.C. contactor are provided.
The technical scheme realizing the object of the invention is: a kind of protective device of A.C. contactor; comprise power supply, electric motor starting controller, motor steering controller, electric moter voltage controller and motor; described electric motor starting controller input is connected with described power supply output; described electric motor starting controller output end is connected with described motor steering controller input; described motor steering controller output end is connected with described motor controling part, and described electric moter voltage controller output end is connected with described motor power portion.
Further, described power supply is the inverter of mains ac power supply and/or inversion.
Further, described electric motor starting controller comprises the first A.C. contactor be connected with described mains ac power supply output and/or the second A.C. contactor be connected with the inverter output of described inversion.
Further, described motor steering controller comprises for controlling the 3rd A.C. contactor of motor forward direction running and the 4th A.C. contactor for controlling motor antiport, described 3rd A.C. contactor and described 4th A.C. contactor interlocking.
Further, described electric moter voltage controller comprises for controlling the 5th A.C. contactor that motor Y mode operates and for controlling the 6th A.C. contactor that motor △ mode operates, described 5th A.C. contactor and described 6th A.C. contactor interlock.
Further, also comprise the processing mechanism for controlling described first A.C. contactor, the second A.C. contactor, the 3rd A.C. contactor, the 4th A.C. contactor, the 5th A.C. contactor and the 6th A.C. contactor, and the alarm mechanism be connected with described processing mechanism.
Further, the guard method of A.C. contactor, comprises the following steps:
Step one, motor rotates forward, and treatment system controls the first A.C. contactor or the second A.C. contactor adhesive, the 3rd A.C. contactor adhesive, the 5th A.C. contactor or the 6th A.C. contactor adhesive, and all the other A.C. contactors disconnect;
Step 2, motor stops, if alarm mechanism does not have alarm signal to send, treatment system controls the first A.C. contactor or the second A.C. contactor keeps adhesive, and the 5th A.C. contactor or the 6th A.C. contactor keep adhesive, and the 3rd A.C. contactor disconnects; Motor stops, if alarm mechanism sends alarm signal, treatment system controls all A.C. contactors and disconnects.
Further, further comprising the steps of:
Step one, motor reversal, treatment system controls the first A.C. contactor or the second A.C. contactor adhesive, the 4th A.C. contactor adhesive, the 5th A.C. contactor or the 6th A.C. contactor adhesive, and all the other A.C. contactors disconnect;
Step 2, motor stops, if alarm mechanism does not have alarm signal to send, treatment system controls the first A.C. contactor or the second A.C. contactor keeps adhesive, and the 5th A.C. contactor or the 6th A.C. contactor keep adhesive, and the 4th A.C. contactor disconnects; Motor stops, if alarm mechanism sends alarm signal, treatment system controls all A.C. contactors and disconnects.
The present invention has positive effect: the number of times that the present invention disconnects by reducing A.C. contactor adhesive, thus reduces the number of times that A.C. contactor produces arcing, extends the useful life of A.C. contactor.
Accompanying drawing explanation
In order to make content of the present invention more easily be clearly understood, below according to specific embodiment also by reference to the accompanying drawings, the present invention is further detailed explanation, wherein:
Fig. 1 is circuit diagram of the present invention.
Embodiment
Embodiment 1
As shown in Figure 1; the invention provides a kind of protective device of A.C. contactor; comprise power supply, electric motor starting controller, motor steering controller, electric moter voltage controller and motor M 1; electric motor starting controller input is connected with power supply output; electric motor starting controller output end is connected with motor steering controller input; motor steering controller output end is connected with motor M 1 control part, and electric moter voltage controller output end is connected with motor M 1 power supply unit.
In the present embodiment, power supply is the inverter of mains ac power supply and inversion; Electric motor starting controller comprises the first A.C. contactor KL be connected with mains ac power supply output and the second A.C. contactor KIV be connected with the inverter output of inversion; Motor steering controller comprises for controlling the 3rd A.C. contactor K1 of motor M 1 forward direction running and the 4th A.C. contactor K2 for controlling motor M 1 antiport, and the 3rd A.C. contactor K1 and the 4th A.C. contactor K2 interlocks; Electric moter voltage controller comprises for controlling the 5th A.C. contactor K3 that motor M 1Y mode operates and for controlling the 6th A.C. contactor K4 that motor M 1 △ mode operates, the 5th A.C. contactor K3 and the 6th A.C. contactor K4 interlocks.
The present embodiment also comprises the processing mechanism for controlling the first A.C. contactor KL, the second A.C. contactor KIV, the 3rd A.C. contactor K1, the 4th A.C. contactor K2, the 5th A.C. contactor K3 and the 6th A.C. contactor K4, and the alarm mechanism be connected with processing mechanism.
The present embodiment also provides a kind of guard method of A.C. contactor, comprises the following steps:
Step one, mains ac power supply powers, and when motor M 1 rotates forward, treatment system controls the first A.C. contactor KL, the 3rd A.C. contactor K1, the 5th A.C. contactor K3 adhesive, and all the other A.C. contactors disconnect;
Step 2, when motor M 1 stops, if alarm mechanism does not have alarm signal to send, treatment system controls the first A.C. contactor KL, the 5th A.C. contactor K3 keeps adhesive, 3rd A.C. contactor K1 disconnects, reduce the number of times of the first A.C. contactor KL and the 5th A.C. contactor K3 adhesive disconnection, thus reduce the number of times that A.C. contactor produces arcing, extend the useful life of A.C. contactor; When motor M 1 stops, if alarm mechanism sends alarm signal, treatment system controls all A.C. contactors and disconnects.
Embodiment 2
As the second preferred embodiment, all the other are identical with embodiment 1, and difference is, the present embodiment also provides a kind of protection of A.C. contactor to protect, and comprises the following steps:
Step one, the inverter of inversion is powered, and when motor M 1 is reversed, treatment system controls the second A.C. contactor KIV, the 4th A.C. contactor K2, the 5th A.C. contactor K3 adhesive, and all the other A.C. contactors disconnect;
Step 2, when motor M 1 stops, if alarm mechanism does not have alarm signal to send, treatment system controls the second A.C. contactor KIV, the 5th A.C. contactor K3 keeps adhesive, 4th A.C. contactor K2 disconnects, reduce the number of times of the second A.C. contactor KIV and the 5th A.C. contactor K3 adhesive disconnection, thus reduce the number of times that A.C. contactor produces arcing, extend the useful life of A.C. contactor; Motor stops, if alarm mechanism sends alarm signal, treatment system controls all A.C. contactors and disconnects.
Above-described specific embodiment; object of the present invention, technical scheme and beneficial effect are further described; be understood that; the foregoing is only specific embodiments of the invention; be not limited to the present invention; within the spirit and principles in the present invention all, any amendment made, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.

Claims (8)

1. the protective device of an A.C. contactor; it is characterized in that; comprise power supply, electric motor starting controller, motor steering controller, electric moter voltage controller and motor; described electric motor starting controller input is connected with described power supply output; described electric motor starting controller output end is connected with described motor steering controller input; described motor steering controller output end is connected with described motor controling part, and described electric moter voltage controller output end is connected with described motor power portion.
2. the protective device of A.C. contactor according to claim 1, is characterized in that, described power supply is the inverter of mains ac power supply and/or inversion.
3. the protective device of A.C. contactor according to claim 2; it is characterized in that, described electric motor starting controller comprises the first A.C. contactor be connected with described mains ac power supply output and/or the second A.C. contactor be connected with the inverter output of described inversion.
4. the protective device of A.C. contactor according to claim 3; it is characterized in that; described motor steering controller comprises for controlling the 3rd A.C. contactor of motor forward direction running and the 4th A.C. contactor for controlling motor antiport, described 3rd A.C. contactor and described 4th A.C. contactor interlocking.
5. the protective device of A.C. contactor according to claim 4; it is characterized in that; described electric moter voltage controller comprises for controlling the 5th A.C. contactor that motor Y mode operates and for controlling the 6th A.C. contactor that motor △ mode operates, described 5th A.C. contactor and described 6th A.C. contactor interlock.
6. the protective device of A.C. contactor according to claim 5; it is characterized in that; also comprise the processing mechanism for controlling described first A.C. contactor, the second A.C. contactor, the 3rd A.C. contactor, the 4th A.C. contactor, the 5th A.C. contactor and the 6th A.C. contactor, and the alarm mechanism be connected with described processing mechanism.
7., according to the guard method of the arbitrary described A.C. contactor of claim 1-6, it is characterized in that, further comprising the steps of:
Step one, motor rotates forward, and treatment system controls the first A.C. contactor or the second A.C. contactor adhesive, the 3rd A.C. contactor adhesive, the 5th A.C. contactor or the 6th A.C. contactor adhesive, and all the other A.C. contactors disconnect;
Step 2, motor stops, if alarm mechanism does not have alarm signal to send, treatment system controls the first A.C. contactor or the second A.C. contactor keeps adhesive, and the 5th A.C. contactor or the 6th A.C. contactor keep adhesive, and the 3rd A.C. contactor disconnects; Motor stops, if alarm mechanism sends alarm signal, treatment system controls all A.C. contactors and disconnects.
8. the guard method of A.C. contactor according to claim 7, is characterized in that, comprises the following steps:
Step one, motor reversal, treatment system controls the first A.C. contactor or the second A.C. contactor adhesive, the 4th A.C. contactor adhesive, the 5th A.C. contactor or the 6th A.C. contactor adhesive, and all the other A.C. contactors disconnect;
Step 2, motor stops, if alarm mechanism does not have alarm signal to send, treatment system controls the first A.C. contactor or the second A.C. contactor keeps adhesive, and the 5th A.C. contactor or the 6th A.C. contactor keep adhesive, and the 4th A.C. contactor disconnects; Motor stops, if alarm mechanism sends alarm signal, treatment system controls all A.C. contactors and disconnects.
CN201310696216.1A 2013-12-18 2013-12-18 Alternating-current contactor protection device and protection method thereof Pending CN104733227A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201310696216.1A CN104733227A (en) 2013-12-18 2013-12-18 Alternating-current contactor protection device and protection method thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201310696216.1A CN104733227A (en) 2013-12-18 2013-12-18 Alternating-current contactor protection device and protection method thereof

Publications (1)

Publication Number Publication Date
CN104733227A true CN104733227A (en) 2015-06-24

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105116818A (en) * 2015-07-16 2015-12-02 珠海格力电器股份有限公司 Monitoring method and system of AC contactor

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201426052Y (en) * 2009-05-22 2010-03-17 邢建忠 Power-type multiple safety protection intelligent electricity-saving system
US20110181236A1 (en) * 2010-01-25 2011-07-28 Ls Industrial Systems Co., Ltd. Charger
CN103030079A (en) * 2012-12-24 2013-04-10 衡阳泰豪通信车辆有限公司 Electric lifting control mechanism for oil engine
CN203119817U (en) * 2013-03-21 2013-08-07 丛信滋 Multi-functional motor starter
CN103311889A (en) * 2013-06-29 2013-09-18 襄垣县树元电器有限公司 Manual switching protection circuit for dual power supplies

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201426052Y (en) * 2009-05-22 2010-03-17 邢建忠 Power-type multiple safety protection intelligent electricity-saving system
US20110181236A1 (en) * 2010-01-25 2011-07-28 Ls Industrial Systems Co., Ltd. Charger
CN103030079A (en) * 2012-12-24 2013-04-10 衡阳泰豪通信车辆有限公司 Electric lifting control mechanism for oil engine
CN203119817U (en) * 2013-03-21 2013-08-07 丛信滋 Multi-functional motor starter
CN103311889A (en) * 2013-06-29 2013-09-18 襄垣县树元电器有限公司 Manual switching protection circuit for dual power supplies

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105116818A (en) * 2015-07-16 2015-12-02 珠海格力电器股份有限公司 Monitoring method and system of AC contactor
CN105116818B (en) * 2015-07-16 2018-01-16 珠海格力电器股份有限公司 The monitoring method and system of A.C. contactor

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Owner name: INVT INDUSTRIAL TECHNOLOGY (SHANGHAI) CO., LTD.

Free format text: FORMER OWNER: SHANGHAI YUNENG POWER TECHNOLOGIES, LNC.

Effective date: 20150906

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Address after: 200120 Shanghai Guo Shou Jing Road, Zhangjiang High Tech Park of Pudong New Area No. 351 Building No. 2 room 690-8

Applicant after: SHANGHAI INVT INDUSTRY TECHNOLOGY CO., LTD.

Address before: Suzhou City, Jiangsu province 215123 high tech Industrial Development Zone of Suzhou science and Technology City kolding Road No. 78

Applicant before: Suzhou Kinway Technologies Inc.

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Application publication date: 20150624

WD01 Invention patent application deemed withdrawn after publication