CN201563095U - Permanent-magnet motor speed regulating circuit and hoisting device - Google Patents
Permanent-magnet motor speed regulating circuit and hoisting device Download PDFInfo
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- CN201563095U CN201563095U CN2009202043928U CN200920204392U CN201563095U CN 201563095 U CN201563095 U CN 201563095U CN 2009202043928 U CN2009202043928 U CN 2009202043928U CN 200920204392 U CN200920204392 U CN 200920204392U CN 201563095 U CN201563095 U CN 201563095U
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Abstract
The utility model discloses a speed regulating method of a permanent-magnet motor, which comprises the following steps: connecting a winding loop of the permanent-magnet motor in series with a first power consumption resistor and a high-speed on-off switching device, wherein the switching device is controlled by a control signal; detecting the rotating speed of the permanent-magnet motor, and when the rotating speed of the permanent-magnet motor is high, sending the control signal to the switching device, and enabling the switching-on time of the first power consumption resistor within unit time to be long and the switching-off time to be short; and when the rotating speed of the permanent-magnet motor is low, enabling the switching-on time of the first power consumption resistor within the unit time to be short and the switching-off time to be long. Further, both ends of the first power consumption resistor and the high-speed on-off switching device which are connected in series are connected in parallel with at least one second power consumption resistor for limiting speeds. The utility model also discloses a permanent-magnet motor speed regulating circuit and a hoisting device adopting the method. By adopting the utility model, even under the condition of no commercial power supply, the rotating speed of the permanent-magnet motor of the hoisting device still can be effectively controlled.
Description
[technical field]
The utility model relates to magneto speed regulating method, alignment circuit and lowering or hoisting gear.Be specially adapted to the magneto speed regulating control that adopts in high level or high-rise building elevator, building construction hoist, wharf crane, shop traveller and the building disaster lowering or hoisting gears such as population self-help escape equipment when taking place.
[background technology]
Lowering or hoisting gears such as existing high level or high-rise building elevator, building construction hoist, wharf crane, shop traveller, there is following deficiency: 1, be subjected to structural restriction, no matter lowering or hoisting gear is uphill process or decline process, all want outer power supply to provide power to work, and power consumption is very big, has wasted many energy.When 2, burst has a power failure,, cause the personnel in the lowering or hoisting gear car to be in unsafe state because lowering or hoisting gear does not have the function that continues decline.3, when the skyscraper breaking out of fire, owing to have a power failure, can't make the reciprocal lifting of lowering or hoisting gear, stranded crowd can't implement self-help escape.
Not have under the situation of commercial power supply in order solving, still to implement stranded crowd's self-help escape.The inventor has successively proposed US7278,601 (requiring the priority of Chinese patent CN01129193), PCT/CN2008/000402 and PCT/CN2009/070606 (requiring the priority of Chinese patent application 200810065491.2).In above-mentioned patent application, the inventor utilizes the principle of electromechanical energy conversion of magneto, the rotor rotation that the energy (kinetic energy) that the personnel's of being mounted with lowering or hoisting gear (survival equipment) is discharged to the process that low level descends from a high position is used to drive magneto produces electric energy and electric energy is mainly dissipated by converting heat energy (power consumption resistance) to, when the energy rate that discharges in the lowering or hoisting gear decline process and used up energy rate reach poised state, the decrease speed of lowering or hoisting gear no longer increases, thereby realizes the purpose of regulation and control lowering or hoisting gear decrease speed.
But, how the decrease speed of magneto is carried out more effective control and utilized the collection energy stored better, still be necessary to do further improvement.
[summary of the invention]
One of technical problem to be solved in the utility model is: even under the situation that does not have the electrical source of power supply, still can effectively control the magneto rotating speed of lowering or hoisting gear.
Further, two of technical problem to be solved in the utility model is: even under the situation without any the external power source supply, not only can effectively control, and can also collect the energy that utilizes lowering or hoisting gear to low level decline process, to discharge from a high position to the magneto rotating speed of lowering or hoisting gear.
The technical scheme that addresses the above problem is:
A kind of alignment circuit of magneto, comprise: the switching device of the high speed break-make of at least one of in winding loop, connecting first power consumption resistance and a suspension control signal control, be used to detect the encoder of magneto rotating speed, Programmable Logic Controller, described encoder is with the described Programmable Logic Controller of detected magneto rotating speed coding back input, and described Programmable Logic Controller converts the tach signal of magneto the pulse train of corresponding duty ratio in order to control the make-and-break time of described switching device.
Described switching device comprises igbt (IGBT) and driver, and the output of described Programmable Logic Controller is driver connected, and the switch terminals of described igbt is connected in series the described first power consumption resistance.
At the two ends of the first power consumption resistance of described series connection and switch terminals in parallel at least one be used for the second power consumption resistance of speed limit.
Output at the magneto winding is parallel with storage battery, and described storage battery is output as described encoder and Programmable Logic Controller provides working power.
An inverter is set, is used for the electric energy that described storage battery stores is fed back to the magneto winding.
A kind of lowering or hoisting gear, comprise car and the magneto that is used to control the car lifting, described magneto comprises: winding loop, the winding loop of described magneto comprise the switching device of the high speed break-make of at least one the first power consumption resistance of series connection and the control of suspension control signal; Be used to detect the encoder of magneto rotating speed, Programmable Logic Controller, described encoder is with the described Programmable Logic Controller of detected magneto rotating speed coding back input, and described Programmable Logic Controller converts the tach signal of magneto the pulse train of corresponding duty ratio in order to control the make-and-break time of described switching device.
Described switching device comprises igbt (IGBT) and driver, and the output of described Programmable Logic Controller is driver connected, and the switch terminals of described igbt is connected in series the described first power consumption resistance.
Comprise that also at least one is used for the second power consumption resistance of speed limit, the described second power consumption resistance is connected in parallel on the first power consumption resistance of described series connection and the two ends of switch terminals.
Output at the magneto winding is parallel with storage battery, and described storage battery is output as described encoder and Programmable Logic Controller provides working power.
Also comprise inverter, be used for the electric energy that described storage battery stores is fed back to the magneto winding.
Also comprise first interface and second interface that are used for to outside output electric energy, described first interface connects storage battery; Described second interface connects inverter.
Adopt technique scheme, the utility model beneficial technical effects is:
Even 1 is not having under the situation of commercial power supply, switching device by series connection first power consumption resistance in winding loop and the high speed break-make that is subjected to the control of magneto rotating speed, particularly adopt the switching device of the high speed break-make that constitutes by igbt (IGBT) and driver, when the rotating speed of magneto was high, the time long, that the disconnect time that the first power consumption resistance was connected in the unit interval was short.Thereby the speed drop of magneto is got off; Otherwise when the rotating speed of magneto hanged down, the time that the first power consumption resistance was connected in the unit interval was short, and the time of disconnection is long, thereby improves the rotating speed of magneto.Thereby realize the speed control of lowering or hoisting gear in the decline process, and control mode is simple, flexible.Both saved a large amount of electric energy (not needing electrical source of power), realized again that control speed descended.Adopt in the various lowering or hoisting gears such as population self-help escape equipment when being widely used in high level or high-rise building elevator, building construction hoist, wharf crane, shop traveller and building disaster and taking place.Population self-help escape equipment when being particularly suitable for the building disaster generation.
2, by the second power consumption resistance is set, even guaranteed when the switching device of high speed break-make breaks down, lowering or hoisting gear still can descend in the velocity interval that the second power consumption resistance is limited, and has ensured that personnel or the article (load) in the lowering or hoisting gear are delivered to ground in the velocity interval of safety.
3, by output multiple-connected battery at the magneto winding, the energy that utilizes lowering or hoisting gear to low level decline process, to discharge by collection from a high position, for encoder and Programmable Logic Controller provide working power, even guaranteed under situation without any the external power source supply, not only can effectively control the decrease speed of lowering or hoisting gear magneto, and can also energy storage.
4, by inverter is set, the electric energy that stores in the described storage battery can be fed back to the magneto winding, even realized under situation without any the external power source supply, still can realize the decline or the lifting of lowering or hoisting gear, particularly when building disaster takes place, significant for population self-help escape.
[description of drawings]
Fig. 1 is a kind of electrical block diagram of magneto winding loop.
Fig. 2 is a kind of structural representation of lowering or hoisting gear.
[embodiment]
Also the utility model is described in more detail in conjunction with the accompanying drawings below by concrete execution mode.
As shown in Figure 1, a kind of alignment circuit of magneto, magneto is a magneto 2, and alignment circuit comprises: winding loop, winding loop comprise magneto winding 1, rectifier bridge 2, filter circuit 3, the first power consumption resistance R 1, the second power consumption resistance R 2 and igbt (IGBT) 4, driver 5, Programmable Logic Controller 6, encoder 7, storage battery 8, first interface, 9, the second interfaces 10 and inverter 11.The first power consumption resistance R 1 with after the switch terminals (pin one and pin two) of igbt 4 is connected in series again with the equivalent adjustable resistance of the second power consumption resistance R, 2 formations in parallel, constitute winding loop by magneto winding 1, rectifier bridge 2, filter circuit 3 and equivalent adjustable resistance.By rectifier bridge 2 and filter circuit 3, the three-phase alternating current that drives magneto rotation generation when load is descended changes direct current into.By encoder 7 Programmable Logic Controller 6 is imported in detected magneto rotating speed coding back, Programmable Logic Controller 6 converts the tach signal of magneto to the control impuls string enter drive 5 of certain duty ratio that is complementary with rotating speed through inner adjusting algorithm, driver 5 will be imported the control impuls string again and convert to and meet the control signal that igbt input control requires form, in order to control the make-and-break time of described igbt 4.When the pin one of IGBT and pin two are connected, the first power consumption resistance R 1 and 2 parallel connections of the second power consumption resistance R, equivalent resistance reduces, and is equivalent to magneto and has strengthened load, and magneto runs slowly; When the pin one of IGBT and pin two disconnected, the first power consumption resistance disconnected, and has only the second power consumption resistance R 2 to put into operation, and the equivalent electric resistive is big, is equivalent to the magneto load and reduces, and magneto quickens operation.Be parallel with the storage battery 8 of electric energy unnecessary when being used to collect magneto and descending at the output of magneto winding 1, storage battery 8 is output as encoder 7, Programmable Logic Controller 6, driver 5 and inverter 11 working power is provided.First interface 9 connects storage battery 8, and storage battery 8 is used (as fan, illumination etc.) by first interface, 9 outside output DCs for it.The output of storage battery 8 drives magneto through inverter 11 makes it be operated in electric motor state.Second interface connects inverter.Inverter is by second interface, 10 outside output ACs.In addition, described commercial power interface 10 can be used as energy spare interface, guarantees the reliability of system, in order to connect civil power to storage battery 8 chargings with to 1 power supply of magneto winding.
Speed regulation process:
Detect the rotating speed and the coding back input Programmable Logic Controller 6 of magneto by encoder 7, Programmable Logic Controller 6 converts the tach signal of magneto the control impuls string enter drive 5 of certain duty ratio that is complementary with rotating speed to through inner adjusting algorithm, and driver 5 will import the control impuls string again and convert to and meet igbt 4 and import and control the control signal that requires form.When the rotating speed of magneto was high, the time that the first power consumption resistance R 1 was connected in the unit interval was long, and the time of disconnection is short, thereby the equivalent resistance in the unit interval is diminished, and magneto slows down; When the rotating speed of magneto hanged down, the time that the power consumption resistance of winning was connected in the unit interval was short, and the time of disconnection is long, thereby made the equivalent electric resistive in the unit interval big, and magneto quickens.
When igbt 4 was in long-time disconnection, equivalent resistance was the second power consumption resistance R 2, the equivalent resistance maximum, and at this moment, the rotating speed of magneto is maximum speed limit.A kind of lowering or hoisting gear, shown in Figure 2, comprise first car, second car and speed governing magneto, the speed governing magneto is a magneto, the alignment circuit of magneto adopts structure shown in Figure 1, and magneto is controlled first car and the reciprocating motion one on the other of second car do by the car pull-cord.
When lowering or hoisting gear descends, the rotor of magneto begins rotation under the effect of load (gravity), the rotor of magneto and stator generation relative motion, magneto is operated under the generating state, electric current in the magneto winding produces the electromagnetic torque opposite with the gravitational moment direction, by the acting in conjunction of two moments, motor descends load safety with certain rotating speed.
Although top detailed description preferred embodiment of the present utility model, but should be understood that for many distortion of basic utility model design clearly, that tell about the electromechanical integrated product those skilled in the art that can make the load lifting at high level or high-rise building elevator, building construction hoist, wharf crane, shop traveller and building disaster population self-help escape equipment etc. here and modify and all drop within the spirit and scope of the present utility model that claims limit.As, in the present embodiment, adopt the switching device of the high speed break-make that constitutes by igbt (IGBT) and driver, those skilled in the art will appreciate that the switching device of the high speed break-make that also can adopt other form is controlled.
Claims (10)
1. the alignment circuit of a magneto, it is characterized in that comprising: the igbt of at least one of in winding loop, connecting first power consumption resistance and a suspension control signal control, be used to detect the encoder of magneto rotating speed, Programmable Logic Controller and driver, described encoder is with the described Programmable Logic Controller of detected magneto rotating speed coding back input, described Programmable Logic Controller converts the tach signal of magneto the pulse train enter drive of corresponding duty ratio to, and the control signal of driver output is in order to control the make-and-break time of described igbt.
2. the alignment circuit of magneto according to claim 1 is characterized in that: at the two ends of the first power consumption resistance of described series connection and switch terminals in parallel at least one be used for the second power consumption resistance of speed limit.
3. the alignment circuit of magneto according to claim 1 and 2, it is characterized in that: the output at the magneto winding is parallel with storage battery, and described storage battery is output as described encoder and Programmable Logic Controller provides working power,
4. the alignment circuit of magneto according to claim 3 is characterized in that: also comprise inverter, be used for the electric energy that described storage battery stores is fed back to the magneto winding.
5. lowering or hoisting gear, comprise car and the magneto that is used to control the car lifting, it is characterized in that: described magneto comprises: winding loop, the winding loop of described magneto comprise the igbt of the high speed break-make of at least one the first power consumption resistance of series connection and the control of suspension control signal; Be used to detect the encoder of magneto rotating speed, Programmable Logic Controller and driver, described Programmable Logic Controller converts the tach signal of magneto the pulse train enter drive of corresponding duty ratio to, and the control signal of driver output is in order to control the make-and-break time of described igbt.
6. lowering or hoisting gear according to claim 5 is characterized in that: comprise that also at least one is used for the second power consumption resistance of speed limit, the described second power consumption resistance is connected in parallel on the first power consumption resistance of described series connection and the two ends of switch terminals.
7. according to claim 5 or 6 described lowering or hoisting gears, it is characterized in that: the output at the magneto winding is parallel with storage battery, and described storage battery is output as described encoder and Programmable Logic Controller provides working power.
8. lowering or hoisting gear according to claim 7 is characterized in that: also comprise inverter, be used for the electric energy that described storage battery stores is fed back to the magneto winding.
9. lowering or hoisting gear according to claim 7 is characterized in that: also comprise first interface that is used for to outside DC power output, described first interface connects storage battery.
10. lowering or hoisting gear according to claim 8, it is characterized in that: described car comprises first car and second car of interlock each other, controls the car pull-cord by the rotating shaft of magneto and makes first car and the reciprocating motion one on the other of second car do.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2009202043928U CN201563095U (en) | 2009-09-08 | 2009-09-08 | Permanent-magnet motor speed regulating circuit and hoisting device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2009202043928U CN201563095U (en) | 2009-09-08 | 2009-09-08 | Permanent-magnet motor speed regulating circuit and hoisting device |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102013864A (en) * | 2009-09-08 | 2011-04-13 | 北京京普瑞科技有限公司 | Speed regulating method, speed regulating circuit and lifting device of permanent-magnet motor |
| CN102464250A (en) * | 2010-11-05 | 2012-05-23 | 白孝林 | New Energy Elevator |
| CN102464235A (en) * | 2010-11-05 | 2012-05-23 | 白孝林 | Improved new-energy elevator |
| CN102485627A (en) * | 2010-12-01 | 2012-06-06 | 傅涛 | Carrying device and carrying system |
| CN110474412A (en) * | 2019-07-04 | 2019-11-19 | 广州市特威工程机械有限公司 | A kind of up-and-down maneuver Force system |
| CN115594103A (en) * | 2022-10-07 | 2023-01-13 | 华中科技大学（Cn） | Rapid cable laying control method and system for electric winch |
-
2009
- 2009-09-08 CN CN2009202043928U patent/CN201563095U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102013864A (en) * | 2009-09-08 | 2011-04-13 | 北京京普瑞科技有限公司 | Speed regulating method, speed regulating circuit and lifting device of permanent-magnet motor |
| CN102464250A (en) * | 2010-11-05 | 2012-05-23 | 白孝林 | New Energy Elevator |
| CN102464235A (en) * | 2010-11-05 | 2012-05-23 | 白孝林 | Improved new-energy elevator |
| CN102464235B (en) * | 2010-11-05 | 2016-10-05 | 白孝林 | The New-energy elevator improved |
| CN102485627A (en) * | 2010-12-01 | 2012-06-06 | 傅涛 | Carrying device and carrying system |
| CN110474412A (en) * | 2019-07-04 | 2019-11-19 | 广州市特威工程机械有限公司 | A kind of up-and-down maneuver Force system |
| CN115594103A (en) * | 2022-10-07 | 2023-01-13 | 华中科技大学（Cn） | Rapid cable laying control method and system for electric winch |
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Owner name: BAI XIAOLIN Free format text: FORMER OWNER: BEIJING JINGPURUI SCIENCE AND TECHNOLOGY CO., LTD. Effective date: 20110601 Owner name: ZHU QINGMING FU TAO |
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Free format text: CORRECT: ADDRESS; FROM: 100097 ROOM 9B1, TOWER B, BUILDING 2, JINYUAN SHIDAI BUSINESS CENTER, YARD 2, LANDIANCHANG EAST ROAD, HAIDIAN, BEIJING TO: 610100 NO. 15, XILING STREET, CHADIAN TOWN, LONGQUANYI DISTRICT, CHENGDU CITY, SICHUAN PROVINCE |
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Effective date of registration: 20110601 Address after: Xiling street town of Longquanyi District of Chengdu City, 610100 shops in Sichuan province No. 15 Co-patentee after: Zhu Qingming Patentee after: Bai Xiaolin Co-patentee after: Fu Tao Address before: 100097 Beijing city Haidian landianchang Road No. two Jin Yuan Times Business Center No. two building B room 9B1 Patentee before: Beijing Jingpurui Science and Technology Co., Ltd. |
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