CN107769165A - The double protection devices of motor delay - Google Patents
The double protection devices of motor delay Download PDFInfo
- Publication number
- CN107769165A CN107769165A CN201711151418.2A CN201711151418A CN107769165A CN 107769165 A CN107769165 A CN 107769165A CN 201711151418 A CN201711151418 A CN 201711151418A CN 107769165 A CN107769165 A CN 107769165A
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- China
- Prior art keywords
- normally
- contact
- normally opened
- coil
- motor
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- 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.)
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Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H7/00—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions
- H02H7/08—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for dynamo-electric motors
- H02H7/0833—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for dynamo-electric motors for electric motors with control arrangements
- H02H7/0844—Fail safe control, e.g. by comparing control signal and controlled current, isolating motor on commutation error
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H7/00—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions
- H02H7/08—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for dynamo-electric motors
- H02H7/085—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for dynamo-electric motors against excessive load
- H02H7/0853—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for dynamo-electric motors against excessive load specially adapted for motors rotating in both directions
Abstract
The double protection devices of motor delay of the present invention, belong to the double protection device technical fields of motor delay；Technical problem to be solved is：Offer is a kind of simple in construction, and cost is low, and the double protection devices of motor delay of spacing point protection and time point protection can be carried out to operation motor；Solve technical scheme that the technical problem uses for：Be connected after stop button TA one end concatenation fuse RT1 with control circuit power firestreak end L, the stop button TA1 other end and connect the one end for rotating forward start button QA, normally opened contact ZC1.4 one end, reversion start button FA one end after be connected with normally opened contact FC1.4 one end；The rotating forward start button QA other end is connected after being sequentially connected in series normally-closed contact FC1.3, coil ZC1.1, normally-closed contact ZC1.2, fuse RT2 with control circuit zero-power line end N；The line that the reversion start button FA other end is sequentially connected in series after ZC1.3, FC1.1, FC1.2 between ZC1.2 and RT2 is connected；The present invention is applied to the place of installation motor.
Description
Technical field
The double protection devices of motor delay of the present invention, belong to the double protection device technical fields of motor delay.
Background technology
In the threephase motor control circuit used at present, mainly by contactor come the logical of controlled motor major loop
It is disconnected, if contactor breaks down, even if pressing device stop button repeatedly, it can not also stop the operating of motor, also may be used sometimes
False judgment can be made to rotating, extreme influence the operation stability of control device, sometimes may be because contactor certainly
Body life problems, it is also possible to because environmental factor interferes, above-mentioned failure can all occur；Currently used electric motor protective device
Complicated, cost is higher, it has not been convenient to promotes the use of.
The content of the invention
The present invention overcomes the shortcomings of the prior art, and technical problem to be solved is：It is simple in construction to provide one kind, into
This is low, and the double protection devices of motor delay of spacing point protection and time point protection can be carried out to operation motor；On solving
Technical problem is stated, the technical solution adopted by the present invention is：The double protection devices of motor delay, including：Stop button TA, rotating forward are opened
Dynamic button QA, reversion start button FA, fuse RT1, RT2, rotate forward control relay ZC1, reversion control relay FC1, when
Between relay SJ1, SJ2, breaker DZ1, wherein：
The coil for rotating forward control relay ZC1 is ZC1.1, normally-closed contact ZC1.2, ZC1.3, normally opened contact ZC1.4,
ZC1.5；
Reversion control relay FC1 coil is FC1.1, normally-closed contact FC1.2, FC1.3, normally opened contact FC1.4,
FC1.5；The coil of time relay sj 1 is SJ1.1, and Time Delay Opening contact is SJ1.2；
The coil of time relay sj 2 is SJ2.1, and Time Delay Opening contact is SJ2.2；
Motor D1 main circuit structure is：
The inlet wire termination three-phase alternating-current supply of the breaker DZ1, breaker DZ1 leading-out terminal simultaneously connect normally opened contact ZC1.5's
Behind one end, it is connected with normally opened contact FC1.5 one end, the other end of the normally opened contact FC1.5 and motor D1 power end phase
Even, the other end of the normally opened contact ZC1.5 is connected with the line between normally opened contact FC1.5 and motor D1；
Motor D1 controling circuit structure is：
It is connected after one end concatenation fuse RT1 of the stop button TA with control circuit power firestreak end L, stop button TA1
The other end and connect the one end for rotating forward start button QA, normally opened contact ZC1.4 one end, reversion start button FA one end after with
Normally opened contact FC1.4 one end is connected；
The other end for rotating forward start button QA be sequentially connected in series normally-closed contact FC1.3, coil ZC1.1, normally-closed contact ZC1.2,
It is connected after fuse RT2 with control circuit zero-power line end N；
The other end of the reversion start button FA is sequentially connected in series the company after ZC1.3, FC1.1, FC1.2 between ZC1.2 and RT2
Line is connected；
With rotating forward start button QA and normally closed touching after the other end concatenation Time Delay Opening contact SJ1.2 of the normally opened contact ZC1.4
Line between point FC1.3 is connected；
With reversion start button FA and normally closed touching after the other end concatenation Time Delay Opening contact SJ2.2 of the normally opened contact FC1.4
Line between point ZC1.3 is connected；
The coil SJ1.1 is attempted by the both ends of the series circuit of coil ZC1.1 and normally-closed contact ZC1.2 compositions；
The coil SJ2.1 is attempted by the both ends of the series circuit of coil FC1.1 and normally-closed contact FC1.2 compositions.
The present invention has the beneficial effect that relative to what prior art possessed：The present invention in the spacing of circuit for controlling motor by connecing
The time relay in parallel on tentaculum loop, to realize double protections to motor operation；Occur when rotating control relay acts
During failure, the time relay will carry out technology to fault current, after preset time is reached, voluntarily control Time Delay Opening contact to break
Open, so as to cut off the operation of motor；Whole device can simply be transformed on the basis of existing circuit for controlling motor, greatly
Reduce cost, while effectively protected when can be broken down to clockwise and anticlockwise motor, improve equipment reliability of operation
And stability.
Brief description of the drawings
The present invention is described further below in conjunction with the accompanying drawings：
Fig. 1 is the structural representation of motor main circuit；
Fig. 2 is the structural representation of circuit for controlling motor.
Embodiment
As illustrated in fig. 1 and 2, the double protection devices of motor delay of the present invention, including：Stop button TA, rotate forward start button
QA, reversion start button FA, fuse RT1, RT2, rotating forward control relay ZC1, reversion control relay FC1, time relay
Device SJ1, SJ2, breaker DZ1, wherein：
The coil for rotating forward control relay ZC1 is ZC1.1, normally-closed contact ZC1.2, ZC1.3, normally opened contact ZC1.4,
ZC1.5；
Reversion control relay FC1 coil is FC1.1, normally-closed contact FC1.2, FC1.3, normally opened contact FC1.4,
FC1.5；The coil of time relay sj 1 is SJ1.1, and Time Delay Opening contact is SJ1.2；
The coil of time relay sj 2 is SJ2.1, and Time Delay Opening contact is SJ2.2；
Motor D1 main circuit structure is：
The inlet wire termination three-phase alternating-current supply of the breaker DZ1, breaker DZ1 leading-out terminal simultaneously connect normally opened contact ZC1.5's
Behind one end, it is connected with normally opened contact FC1.5 one end, the other end of the normally opened contact FC1.5 and motor D1 power end phase
Even, the other end of the normally opened contact ZC1.5 is connected with the line between normally opened contact FC1.5 and motor D1；
Motor D1 controling circuit structure is：
It is connected after one end concatenation fuse RT1 of the stop button TA with control circuit power firestreak end L, stop button TA1
The other end and connect the one end for rotating forward start button QA, normally opened contact ZC1.4 one end, reversion start button FA one end after with
Normally opened contact FC1.4 one end is connected；
The other end for rotating forward start button QA be sequentially connected in series normally-closed contact FC1.3, coil ZC1.1, normally-closed contact ZC1.2,
It is connected after fuse RT2 with control circuit zero-power line end N；
The other end of the reversion start button FA is sequentially connected in series the company after ZC1.3, FC1.1, FC1.2 between ZC1.2 and RT2
Line is connected；
With rotating forward start button QA and normally closed touching after the other end concatenation Time Delay Opening contact SJ1.2 of the normally opened contact ZC1.4
Line between point FC1.3 is connected；
With reversion start button FA and normally closed touching after the other end concatenation Time Delay Opening contact SJ2.2 of the normally opened contact FC1.4
Line between point ZC1.3 is connected；
The coil SJ1.1 is attempted by the both ends of the series circuit of coil ZC1.1 and normally-closed contact ZC1.2 compositions；
The coil SJ2.1 is attempted by the both ends of the series circuit of coil FC1.1 and normally-closed contact FC1.2 compositions.
The present invention provides a kind of control circuit of motor positive and inverse operation, employs limit switch and time relay combination
Mode be controlled, it is ensured that equipment operation it is safe and reliable；The present invention under normal circumstances, first presses rotating forward start button
QA, then control relay ZC1 actions being rotated forward, controlled motor D1 is rotated forward, meanwhile, the coil electricity of time relay sj 1 is simultaneously
Start timing, after limit switch rotates forward control relay ZC1 arrival setting position, limit switch normally-closed contact ZC1.2 will be triggered,
Leave the motor off operation.
When the damage of limit switch rotating control relay or failure, if motor, which continues to run with, will occur serious thing
Therefore now, the operation whole time is rotated forward because the time-delay action that the time relay is set is slightly longer than, by controlled motor not
Rely on limit switch and continue to run with certain time, the time of arrival time relay setting afterwards, the delay of the time relay is beaten
Open contact SJ1.2 will be switched off, then motor D1 is out of service, has ensured equipment safety.
Similarly, if reversion, reversion control relay FC1 limits the extreme position of motor operation, if limit switch FC1
Damage, after time relay sj 2 reaches setting time, equally it is able to ensure that motor is out of service.
In order to prevent rotating while start, cause whole device short-circuit, the present apparatus is provided with controls relay by rotating
The interlock circuit that the normally-closed contact FC1.3 and ZC1.3 of device are formed, ensure that two A.C. contactors will not adhesive simultaneously.
Finally it should be noted that：Various embodiments above is merely illustrative of the technical solution of the present invention, rather than its limitations；To the greatest extent
The present invention is described in detail with reference to foregoing embodiments for pipe, it will be understood by those within the art that：Its according to
The technical scheme described in foregoing embodiments can so be modified, either which part or all technical characteristic are entered
Row equivalent substitution；And these modifications or replacement, the essence of appropriate technical solution is departed from various embodiments of the present invention technology
The scope of scheme.
Claims (1)
1. the double protection devices of motor delay, it is characterised in that：Including：Stop button TA, rotate forward start button QA, reversion startup
Button F A, fuse RT1, RT2, control relay ZC1, reversion control relay FC1, time relay sj 1, SJ2 are rotated forward, broken
Road device DZ1, wherein：
The coil for rotating forward control relay ZC1 is ZC1.1, normally-closed contact ZC1.2, ZC1.3, normally opened contact ZC1.4,
ZC1.5；
Reversion control relay FC1 coil is FC1.1, normally-closed contact FC1.2, FC1.3, normally opened contact FC1.4,
FC1.5；The coil of time relay sj 1 is SJ1.1, and Time Delay Opening contact is SJ1.2；
The coil of time relay sj 2 is SJ2.1, and Time Delay Opening contact is SJ2.2；
Motor D1 main circuit structure is：
The inlet wire termination three-phase alternating-current supply of the breaker DZ1, breaker DZ1 leading-out terminal simultaneously connect normally opened contact ZC1.5's
Behind one end, it is connected with normally opened contact FC1.5 one end, the other end of the normally opened contact FC1.5 and motor D1 power end phase
Even, the other end of the normally opened contact ZC1.5 is connected with the line between normally opened contact FC1.5 and motor D1；
Motor D1 controling circuit structure is：
It is connected after one end concatenation fuse RT1 of the stop button TA with control circuit power firestreak end L, stop button TA1
The other end and connect the one end for rotating forward start button QA, normally opened contact ZC1.4 one end, reversion start button FA one end after with
Normally opened contact FC1.4 one end is connected；
The other end for rotating forward start button QA be sequentially connected in series normally-closed contact FC1.3, coil ZC1.1, normally-closed contact ZC1.2,
It is connected after fuse RT2 with control circuit zero-power line end N；
The other end of the reversion start button FA is sequentially connected in series the company after ZC1.3, FC1.1, FC1.2 between ZC1.2 and RT2
Line is connected；
With rotating forward start button QA and normally closed touching after the other end concatenation Time Delay Opening contact SJ1.2 of the normally opened contact ZC1.4
Line between point FC1.3 is connected；
With reversion start button FA and normally closed touching after the other end concatenation Time Delay Opening contact SJ2.2 of the normally opened contact FC1.4
Line between point ZC1.3 is connected；
The coil SJ1.1 is attempted by the both ends of the series circuit of coil ZC1.1 and normally-closed contact ZC1.2 compositions；
The coil SJ2.1 is attempted by the both ends of the series circuit of coil FC1.1 and normally-closed contact FC1.2 compositions.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711151418.2A CN107769165A (en) | 2017-11-18 | 2017-11-18 | The double protection devices of motor delay |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711151418.2A CN107769165A (en) | 2017-11-18 | 2017-11-18 | The double protection devices of motor delay |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107769165A true CN107769165A (en) | 2018-03-06 |
Family
ID=61278333
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711151418.2A Pending CN107769165A (en) | 2017-11-18 | 2017-11-18 | The double protection devices of motor delay |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107769165A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108571461A (en) * | 2018-05-31 | 2018-09-25 | 河南森源电气股份有限公司 | Fan controller, blower fan system and frequency convertor system |
| CN112532125A (en) * | 2020-11-27 | 2021-03-19 | 贵州航天电子科技有限公司 | Motor forward and reverse rotation control system with double protection functions |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102055385A (en) * | 2010-12-08 | 2011-05-11 | 河南省电力公司许昌供电公司 | Forward and reverse control box of novel motor |
| CN204118700U (en) * | 2014-06-29 | 2015-01-21 | 南京梅山冶金发展有限公司 | A kind of hydraulic brake control circuit with double protection functions |
| CN204162212U (en) * | 2014-10-21 | 2015-02-18 | 李昱新 | A kind of distance type building hoist module |
| CN205070852U (en) * | 2015-10-30 | 2016-03-02 | 灵宝金源矿业股份有限公司 | Motor switching control device that is just reversing |
| CN205490282U (en) * | 2016-04-18 | 2016-08-17 | 黑龙江工业学院 | Motor control circuit that is just reversing |
-
2017
- 2017-11-18 CN CN201711151418.2A patent/CN107769165A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102055385A (en) * | 2010-12-08 | 2011-05-11 | 河南省电力公司许昌供电公司 | Forward and reverse control box of novel motor |
| CN204118700U (en) * | 2014-06-29 | 2015-01-21 | 南京梅山冶金发展有限公司 | A kind of hydraulic brake control circuit with double protection functions |
| CN204162212U (en) * | 2014-10-21 | 2015-02-18 | 李昱新 | A kind of distance type building hoist module |
| CN205070852U (en) * | 2015-10-30 | 2016-03-02 | 灵宝金源矿业股份有限公司 | Motor switching control device that is just reversing |
| CN205490282U (en) * | 2016-04-18 | 2016-08-17 | 黑龙江工业学院 | Motor control circuit that is just reversing |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108571461A (en) * | 2018-05-31 | 2018-09-25 | 河南森源电气股份有限公司 | Fan controller, blower fan system and frequency convertor system |
| CN108571461B (en) * | 2018-05-31 | 2023-11-21 | 河南森源电气股份有限公司 | Fan control device, fan system and frequency converter system |
| CN112532125A (en) * | 2020-11-27 | 2021-03-19 | 贵州航天电子科技有限公司 | Motor forward and reverse rotation control system with double protection functions |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20180306 |
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| RJ01 | Rejection of invention patent application after publication |