CN202617052U - Simple and practical squirrel-cage motor heavy load starting device - Google Patents
Simple and practical squirrel-cage motor heavy load starting device Download PDFInfo
- Publication number
- CN202617052U CN202617052U CN 201220135502 CN201220135502U CN202617052U CN 202617052 U CN202617052 U CN 202617052U CN 201220135502 CN201220135502 CN 201220135502 CN 201220135502 U CN201220135502 U CN 201220135502U CN 202617052 U CN202617052 U CN 202617052U
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- circuit breaker
- contactor
- relay
- motor
- control loop
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Abstract
The utility model relates to a simple and practical squirrel-cage motor heavy load starting device. The simple and practical squirrel-cage motor heavy load starting device comprises a main circuit breaker, a contactor, a bypass contactor, a thermal relay, a start button, a control loop circuit breaker and a time relay; wherein a three-phase power supply is connected with a motor sequentially through the main circuit breaker, the contactor, and the thermal relay; by adopting the technology proposal, under time control of the time relay, at a normal start state, the relay time of the time relay is adjusted to reasonably avoid the start time of the motor, and prevents the thermal relay from being influenced by relative long current duration time, therefore the motor is smoothly started until normal operation state. The simple and practical squirrel-cage motor heavy load starting device has advantages of simple and convenient circuit structure, low investment, easy adjustment and convenient application. The squirrel-cage motor heavy load starting device provides beneficial use effects on starting the heavy load motor such as an industrial and civil fan, and a water pump.
Description
Technical field
This utility model relates to a kind of motor heavy load starting device, particularly draws and a kind of squirrel cage motor of simple and easy practicality heavy duty stating with load device.
Background technology
For the motor of replantings such as blower fan water pump load, because the difference of operating mode when starting, the tripping operation of load or the phenomenon of burn-down of electric motor often occurred.
The utility model content
For solving above technical problem; The utility model provides a kind of squirrel cage motor heavy duty stating with load device of simple and easy practicality, through the present technique scheme, when electric motor starting; Utilize the delay time of the adjustment time relay; Rationally avoid the start-up time of motor, evade the long influence of starting current duration, thereby starter motor is to normal operating condition smoothly thermal relay.
In order to achieve the above object; The technical scheme of the utility model is achieved in that a kind of squirrel cage motor heavy duty stating with load device of simple and easy practicality, includes main circuit breaker, contactor, bypass contactor, thermal relay, start button, control loop circuit breaker and the time relay and constitutes; Said three phase mains links to each other with motor through main circuit breaker, contactor and thermal relay successively; Said control power supply is provided with the control loop circuit breaker; Said control loop circuit breaker one end is with after the normally opened contact of start button that is in parallel and contactor is connected; Link to each other with the contactor solenoid, the other end of contactor solenoid is connected with the other end of control loop circuit breaker again; Be parallel with the loop that constitutes by contactor normally opened contact, time relay normally-closed contact and bypass contactor solenoid successively at the two ends of control loop circuit breaker; Also be parallel with the loop that constitutes by contactor normally opened contact and time relay solenoid at the two ends of control loop circuit breaker.
Said two ends at the control loop circuit breaker are parallel with the loop that is made up of contactor normally opened contact and signal lamp.
Said two ends at the control loop circuit breaker are parallel with the loop that is made up of contactor normally-closed contact and signal lamp.
Said control loop circuit breaker two ends are parallel with the auxiliary relay solenoid respectively with on start button and the common terminal that the contactor solenoid links to each other, are parallel with the loop that is made up of auxiliary relay normally-closed contact and signal lamp at the two ends of control loop circuit breaker.
Be serially connected with the normally opened contact of circuit breaker and the normally-closed contact of thermal relay on the common terminal of said contactor solenoid and auxiliary relay solenoid.
Beneficial effect after the employing technique scheme is: a kind of squirrel cage motor heavy duty stating with load device of simple and easy practicality; Through the present technique scheme; Under the control of the time of the time relay, when normally starting, through the delay time of the adjustment time relay; Rationally avoid the start-up time of motor; Evade the long influence of starting current duration, thereby starter motor is to normal operating condition smoothly to thermal relay, the present technique scheme has that circuit structure is simple and convenient, investment is low, adjustment easily, be suitable for advantages such as convenient.For heavy duties such as industrial and civilian blower fan, water pump load electric motor starting provides useful result of use.
Description of drawings
Fig. 1 is the circuit theory diagrams of the utility model.
Embodiment
Be described further below in conjunction with accompanying drawing and specific embodiment technical scheme the utility model.
As shown in Figure 1; This newly with the squirrel cage motor heavy duty stating with load device of the novel simple and easy practicality that relates to, includes main circuit breaker Q11, contactor K11, bypass contactor K13, thermal relay F11, start button S12, control loop circuit breaker Q 12 and time relay K14 and constitutes; Said three phase mains links to each other with motor M through main circuit breaker Q11, contactor K11 and thermal relay F11 successively; Said control power supply is provided with control loop circuit breaker Q 12; Said control loop circuit breaker Q 12 1 ends are with after the normally opened contact K11A of start button S12 that is in parallel and contactor K11 is connected; Link to each other with contactor solenoid K11C, the other end of contactor solenoid K11C is connected with the other end of control loop circuit breaker Q 12 again; Be parallel with the loop that constitutes by contactor normally opened contact K11A, time relay normally-closed contact K14B and bypass contactor solenoid K13C successively at the two ends of control loop circuit breaker Q 12; Also be parallel with the loop that constitutes by contactor normally opened contact K11A and time relay solenoid K14C at the two ends of control loop circuit breaker Q 12.
Said two ends in control loop circuit breaker Q 12 are parallel with the loop that is made up of contactor normally opened contact K11A and signal lamp H11.
Said two ends in control loop circuit breaker Q 12 are parallel with the loop that is made up of contactor normally-closed contact K11B and signal lamp H12.
Said control loop circuit breaker Q 12 two ends are parallel with auxiliary relay solenoid K12C respectively with on start button S12 and the common terminal that contactor solenoid K11C links to each other, are parallel with the loop that is made up of auxiliary relay normally-closed contact K12B and signal lamp H13 at the two ends of control loop circuit breaker Q 12.
Be serially connected with circuit breaker normally opened contact Q11A and thermal relay normally closed contact F11B on the common terminal of said contactor solenoid K11C and auxiliary relay solenoid K12C.
According to the related parameter that has of pairing motor M, choose reasonable circuit breaker Q 11, contactor K11, bypass contactor K13, thermal relay F11, auxiliary relay K12, time relay K14, and relevant signal lamp H11, signal lamp H12 and signal lamp H13.
During normal the startup, said circuit breaker Q 11 is closed a floodgate, and control loop circuit breaker Q 12 is closed a floodgate; Thermal relay F11 carries out positive definite by normal running current, time-delay relay K14 delay time is set at is slightly larger than motor M start-up time, presses start button S12; Contactor solenoid K11C and bypass contactor solenoid K13C get electric, and contactor K11 is closed, and bypass contactor K13 is closed; Motor M starts, thermal relay F11 bypass operation this moment, and motor M is worked under the situation of no thermal relay F11; Rely on the release of circuit breaker Q 11 to start protection, the motor M of delaying time starts and finishes, and the contactor K13 on thermal relay F11 next door breaks off; Start-up course finishes, and motor M gets into normal running status.Thermal relay F11 carries out conventional overload protection to motor.
The above is merely the preferable possible embodiments of the utility model, is not in order to limit the protection range of the utility model.
Claims (5)
1. the squirrel cage motor of simple and easy practicality heavy duty stating with load device is characterized in that, includes main circuit breaker, contactor, bypass contactor, thermal relay, start button, control loop circuit breaker and the time relay and constitutes; Said three phase mains links to each other with motor through main circuit breaker, contactor and thermal relay successively; Said control power supply is provided with the control loop circuit breaker; Said control loop circuit breaker one end is with after the normally opened contact of start button that is in parallel and contactor is connected; Link to each other with the contactor solenoid, the other end of contactor solenoid is connected with the other end of control loop circuit breaker again; Be parallel with the loop that constitutes by contactor normally opened contact K11A, time relay normally-closed contact K14B and bypass contactor solenoid K13C successively at the two ends of control loop circuit breaker Q 12; Also be parallel with the loop that constitutes by contactor normally opened contact and time relay solenoid at the two ends of control loop circuit breaker.
2. the squirrel cage motor of simple and easy practicality according to claim 1 heavy duty stating with load device is characterized in that said two ends at the control loop circuit breaker are parallel with the loop that is made up of contactor normally opened contact and signal lamp.
3. the squirrel cage motor of simple and easy practicality according to claim 1 heavy duty stating with load device is characterized in that said two ends at the control loop circuit breaker are parallel with the loop that is made up of contactor normally-closed contact and signal lamp.
4. the squirrel cage motor of simple and easy practicality according to claim 1 heavy duty stating with load device; It is characterized in that; Said control loop circuit breaker two ends are parallel with the auxiliary relay solenoid respectively with on start button and the common terminal that the contactor solenoid links to each other, are parallel with the loop that is made up of auxiliary relay normally-closed contact and signal lamp at the two ends of control loop circuit breaker.
5. the squirrel cage motor of simple and easy practicality according to claim 4 heavy duty stating with load device; It is characterized in that, be serially connected with the normally opened contact of circuit breaker and the normally-closed contact of thermal relay on the common terminal of said contactor solenoid and auxiliary relay solenoid.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220135502 CN202617052U (en) | 2012-03-31 | 2012-03-31 | Simple and practical squirrel-cage motor heavy load starting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220135502 CN202617052U (en) | 2012-03-31 | 2012-03-31 | Simple and practical squirrel-cage motor heavy load starting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202617052U true CN202617052U (en) | 2012-12-19 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220135502 Expired - Fee Related CN202617052U (en) | 2012-03-31 | 2012-03-31 | Simple and practical squirrel-cage motor heavy load starting device |
Country Status (1)
| Country | Link |
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| CN (1) | CN202617052U (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103532445A (en) * | 2013-10-28 | 2014-01-22 | 广东申菱空调设备有限公司 | Start control device for heavy load start of motor and control method of device |
| CN104836323A (en) * | 2015-05-20 | 2015-08-12 | 鲁霄钢 | Buried sewage treatment equipment |
| CN104836322A (en) * | 2015-05-20 | 2015-08-12 | 徐伯琴 | Shielded cable connection structure of sewage treatment equipment power system |
| CN104852460A (en) * | 2015-05-20 | 2015-08-19 | 徐伯琴 | Inversion circuit of sewage processing equipment power system |
| CN104852459A (en) * | 2015-05-20 | 2015-08-19 | 徐伯琴 | Storage cell of sewage treatment equipment power system |
| CN104852454A (en) * | 2015-05-20 | 2015-08-19 | 徐伯琴 | Photovoltaic controller of sewage treatment equipment power system |
| CN106300031A (en) * | 2015-05-22 | 2017-01-04 | 鲁霄钢 | A kind of dust pelletizing system optimizing power distribution cabinet wire structures |
| CN106907342A (en) * | 2015-12-23 | 2017-06-30 | 上海宝钢化工有限公司 | A kind of control device of the medium-sized heating furnace blower fan of driving |
-
2012
- 2012-03-31 CN CN 201220135502 patent/CN202617052U/en not_active Expired - Fee Related
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103532445A (en) * | 2013-10-28 | 2014-01-22 | 广东申菱空调设备有限公司 | Start control device for heavy load start of motor and control method of device |
| CN103532445B (en) * | 2013-10-28 | 2016-04-27 | 广东申菱环境系统股份有限公司 | A kind of startup control device of heavy load start of motor and control method thereof |
| CN104836323A (en) * | 2015-05-20 | 2015-08-12 | 鲁霄钢 | Buried sewage treatment equipment |
| CN104836322A (en) * | 2015-05-20 | 2015-08-12 | 徐伯琴 | Shielded cable connection structure of sewage treatment equipment power system |
| CN104852460A (en) * | 2015-05-20 | 2015-08-19 | 徐伯琴 | Inversion circuit of sewage processing equipment power system |
| CN104852459A (en) * | 2015-05-20 | 2015-08-19 | 徐伯琴 | Storage cell of sewage treatment equipment power system |
| CN104852454A (en) * | 2015-05-20 | 2015-08-19 | 徐伯琴 | Photovoltaic controller of sewage treatment equipment power system |
| CN106300031A (en) * | 2015-05-22 | 2017-01-04 | 鲁霄钢 | A kind of dust pelletizing system optimizing power distribution cabinet wire structures |
| CN106300031B (en) * | 2015-05-22 | 2019-11-29 | 鲁霄钢 | A kind of dust pelletizing system |
| CN106907342A (en) * | 2015-12-23 | 2017-06-30 | 上海宝钢化工有限公司 | A kind of control device of the medium-sized heating furnace blower fan of driving |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121219 Termination date: 20150331 |
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| EXPY | Termination of patent right or utility model |