CN102887407B - Star closure method for permanent magnet synchronous gearless tractor of elevator - Google Patents

Star closure method for permanent magnet synchronous gearless tractor of elevator Download PDF

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Publication number
CN102887407B
CN102887407B CN201210385840.5A CN201210385840A CN102887407B CN 102887407 B CN102887407 B CN 102887407B CN 201210385840 A CN201210385840 A CN 201210385840A CN 102887407 B CN102887407 B CN 102887407B
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normally closed
contactor
permanent
closed contact
dragging machine
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CN102887407A (en
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潘国强
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Huzhou Huti Association Elevator Technology Service Co ltd
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ZHEJIANG NANAO ELEVATOR CO Ltd
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Abstract

The invention discloses a star closure method for a permanent magnet synchronous gearless tractor of an elevator. The star closure method is performed by closing a star closure contactor KM2 at the inlet wire end of the permanent magnet synchronous gearless tractor in a time delay manner after disconnecting a main contactor KM1 at the output end of a frequency converter, and is characterized by comprising the following steps of: connecting a normally closed contact KM3 on each inlet wire of the permanent magnet synchronous gearless tractor in series, connecting resistors R on the normally closed contacts KM3 in parallel, and enabling the action sequence of the main contactor KM1, the star closure contactor KM2 and the normally closed contacts KM3 to be as follows: firstly disconnecting the normally closed contacts KM3, further disconnecting the main contactor KM1, then closing the star closure contactor KM2 and further closing the normally closed contacts KM3 when the rotational speed of the permanent magnet synchronous gearless tractor is reduced to a certain value. According to the star closure method disclosed by the invention, the overload phenomenon can be avoided during star closure of the permanent magnet synchronous gearless tractor, and the star closure brake can be realized simultaneously.

Description

A kind of envelope star method of elevator permanent-magnet synchnorous gearless dragging machine
Technical field
The present invention relates to a kind of envelope star method of elevator permanent-magnet synchnorous gearless dragging machine,, belong to elevator control technology field.
Background technology
From permanent-magnet synchnorous gearless dragging machine, on elevator, apply beginning, its envelope star braking function is used as advantage publicity and application always, but when it provides safety guard-safeguard, also increases the risk of the elevator accident of knowing clearly.Envelope star technology, permanent-magnet synchnorous gearless dragging machine is pressed star-like connection by three-phase winding leading-out wire.Now towing machine is as Thee-phase alternating current permanent-magnetic generator, the unbalanced moment of elevator machine balanced system drives traction sheave running, electrical generator absorbs mechanical energy and is converted into electric energy, by the formed C/LOOP of envelope star, by electric energy conversion, be that electromagnetic torque and machine torque contend with, the traction sheave rotating speed of permanent-magnet synchnorous gearless dragging machine is reduced.When envelope star technology can be used on emergency relief, put lock, when lift car utilization deadweight is moved voluntarily, can be stabilized in an at the uniform velocity state; Envelope star technology also can be used for coordinating brake equipment to brake (if publication No. is the Chinese patent application of CN 102398813 A) conventionally, but because the size of current on Feng Xinghou C/LOOP is relevant with the rotating speed of towing machine, when elevator cage operation excessive velocities, also the rotating speed that is permanent-magnet synchnorous gearless dragging machine is too high, can cause this C/LOOP overload, thereby cause envelope star contactor or coil to burn out, the increase contactless switch capacity that the Chinese patent application that is only CN 102398813 A as publication No. is recorded, can not fundamentally solve the problem of overload.
Summary of the invention
The object of the invention is to, a kind of envelope star method of elevator permanent-magnet synchnorous gearless dragging machine is provided.The present invention can there will not be overload phenomenon when permanent-magnet synchnorous gearless dragging machine seals star, in the time of also can making to seal star braking simultaneously.
Technical scheme of the present invention: a kind of envelope star method of elevator permanent-magnet synchnorous gearless dragging machine, it is after disconnecting the main contactor KM1 of inverter output terminal, the envelope star contactor KM2 of time closing permanent-magnet synchnorous gearless dragging machine end of incoming cables, it is characterized in that: on every inlet wire of permanent-magnet synchnorous gearless dragging machine, be all in series with normally closed contact KM3, on normally closed contact KM3, be parallel with resistance R, main contactor KM1, the sequence of operation of envelope star contactor KM2 and normally closed contact KM3 is followed successively by, first disconnect normally closed contact KM3, disconnect again main contactor KM1, then closure is sealed star contactor KM2, when permanent-magnet synchnorous gearless dragging machine rotating speed drops to certain numerical value, closed normally closed contact KM3 again.Formerly disconnect normally closed contact KM3, then disconnect main contactor KM1, then, after closed envelope star contactor KM2, permanent-magnet synchnorous gearless dragging machine becomes an electrical generator, and in the loop of a bringing onto load (resistance R).When rotating speed is too high, due to the effect of resistance R, in loop, electric current can be high, therefore can not burn out contactless switch or winding.And low while relatively there is no resistance R due to electric current, so it is also less to start the electromagnetic torque that produces, thereby can not make motor cause unexpected velocity variations, slowed down the impact to the passenger in elevator.Have after speed slows down, closed normally closed contact KM3, short circuited resistance R, raises electric current, improves electromagnetic torque.Thereby in fact the present invention is separated into the elevator brake of Feng Xinghou 2 steps and cushions, when preventing that device from burning out, also improved the stationarity of braking.
In the envelope star method of above-mentioned elevator permanent-magnet synchnorous gearless dragging machine, in order further to improve the stationarity of braking, on every inlet wire of described permanent-magnet synchnorous gearless dragging machine, be all in series with a plurality of normally closed contact KM3, on each normally closed contact KM3, be parallel with resistance R, normally closed contact KM3 is again in closed stage, each normally closed contact KM3 is along with the reduction of permanent-magnet synchnorous gearless dragging machine rotating speed, and closed one by one, the resistance value in loop reduces gradually.
In the envelope star method of aforesaid elevator permanent-magnet synchnorous gearless dragging machine, described main contactor KM1, envelope star contactor KM2 are connected with contactor controller with normally closed contact KM3, and its action sequence is controlled by contactor controller; And contactor controller is also connected with the coder on permanent-magnet synchnorous gearless dragging machine, for gathering permanent-magnet synchnorous gearless dragging machine rotating speed.
Compared with prior art, the present invention, when permanent-magnet synchnorous gearless dragging machine is sealed to star, makes the first bringing onto load operation in loop of Feng Xinghou, to avoid the excessive device failure that causes of electric current.When at permanent-magnet synchnorous gearless dragging machine, because envelope star processes, rotating speed drops to a certain degree, short circuit load, carries out the braking of subordinate phase, thereby makes permanent-magnet synchnorous gearless dragging machine be in a comparatively pulsation-free deceleration regime.The present invention is divided into braking procedure a plurality of stages of microcosmic, makes to seal star loop and continues to provide a pulsation-free braking force, thereby cushioned the impact to elevator passenger, when improving elevator safety performance, has also improved passenger's comfort level.
Accompanying drawing explanation
Fig. 1 is embodiment of the present invention envelope star circuit diagram.
The specific embodiment
Below in conjunction with drawings and Examples, the present invention is further illustrated, but not as the foundation to the present invention's restriction.
Embodiment.A kind of envelope star method of elevator permanent-magnet synchnorous gearless dragging machine, it is after disconnecting the main contactor KM1 of inverter output terminal, the envelope star contactor KM2 of time closing permanent-magnet synchnorous gearless dragging machine end of incoming cables, on every inlet wire of permanent-magnet synchnorous gearless dragging machine, be all in series with normally closed contact KM3, on normally closed contact KM3, be parallel with resistance R, main contactor KM1, the sequence of operation of envelope star contactor KM2 and normally closed contact KM3 is followed successively by, first disconnect normally closed contact KM3, disconnect again main contactor KM1, then closure is sealed star contactor KM2, when permanent-magnet synchnorous gearless dragging machine rotating speed drops to certain numerical value (because the power of different towing machines is different, in elevator, the unbalanced moment of mechanical balance system is different, can adopt the mode of actual measurement to determine, the relation curve of rotating speed and electric current, determine again resistance R), closed normally closed contact KM3 again.
On every inlet wire of described permanent-magnet synchnorous gearless dragging machine, be all in series with a plurality of normally closed contact KM3, on each normally closed contact KM3, be parallel with resistance R, normally closed contact KM3 is again in closed stage, and each normally closed contact KM3 is along with the reduction of permanent-magnet synchnorous gearless dragging machine rotating speed, closed one by one.On every inlet wire as shown in Figure 1, be all in series with the situation of 2 normally closed contact KM3.
Described main contactor KM1, envelope star contactor KM2 are connected with contactor controller with normally closed contact KM3, and its action sequence is controlled by contactor controller; And contactor controller is also connected with the coder on permanent-magnet synchnorous gearless dragging machine, for gathering permanent-magnet synchnorous gearless dragging machine rotating speed.

Claims (3)

1. the envelope star method of an elevator permanent-magnet synchnorous gearless dragging machine, it is after disconnecting the main contactor KM1 of inverter output terminal, the envelope star contactor KM2 of time closing permanent-magnet synchnorous gearless dragging machine end of incoming cables, it is characterized in that: on every inlet wire of permanent-magnet synchnorous gearless dragging machine, be all in series with normally closed contact KM3, on normally closed contact KM3, be parallel with resistance R, main contactor KM1, the sequence of operation of envelope star contactor KM2 and normally closed contact KM3 is followed successively by, first disconnect normally closed contact KM3, disconnect again main contactor KM1, then closure is sealed star contactor KM2, when permanent-magnet synchnorous gearless dragging machine rotating speed drops to certain numerical value, closed normally closed contact KM3 again.
2. the envelope star method of elevator permanent-magnet synchnorous gearless dragging machine according to claim 1, it is characterized in that: on every inlet wire of described permanent-magnet synchnorous gearless dragging machine, be all in series with a plurality of normally closed contact KM3, on each normally closed contact KM3, be parallel with resistance R, normally closed contact KM3 is again in closed stage, each normally closed contact KM3 is along with the reduction of permanent-magnet synchnorous gearless dragging machine rotating speed, closed one by one.
3. the envelope star method of elevator permanent-magnet synchnorous gearless dragging machine according to claim 1 and 2, it is characterized in that: described main contactor KM1, envelope star contactor KM2 are connected with contactor controller with normally closed contact KM3, and the action sequence of described main contactor KM1, envelope star contactor KM2 and normally closed contact KM3 is controlled by contactor controller; And contactor controller is also connected with the coder on permanent-magnet synchnorous gearless dragging machine, for gathering permanent-magnet synchnorous gearless dragging machine rotating speed.
CN201210385840.5A 2012-10-11 2012-10-11 Star closure method for permanent magnet synchronous gearless tractor of elevator Active CN102887407B (en)

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Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108483149B (en) * 2018-05-08 2020-05-12 上海吉亿电机有限公司 Star sealing control method for elevator traction machine
CN110835041B (en) * 2019-11-07 2021-04-23 迅达（中国）电梯有限公司 Star-sealing circuit design method for elevator permanent magnet synchronous traction machine
CN111056392B (en) * 2019-12-16 2021-10-29 迅达（中国）电梯有限公司 Testing device and testing method for elevator permanent magnet synchronous traction machine
CN115402892B (en) * 2022-08-24 2023-11-28 日立楼宇技术（广州）有限公司 Control device and method
CN115321302B (en) * 2022-08-30 2024-03-22 苏州汇川控制技术有限公司 Elevator braking method, device, system and computer readable storage medium

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Publication number Priority date Publication date Assignee Title
JP2000309475A (en) * 2000-01-01 2000-11-07 Mitsubishi Electric Corp Elevator device
WO2007139477A1 (en) * 2006-06-01 2007-12-06 Digisign Ab Circuit device for a braked motor
CN102060220A (en) * 2009-11-18 2011-05-18 林浩生 Automatic rescue device for elevator
CN201980827U (en) * 2011-01-27 2011-09-21 东莞市快意电梯有限公司 Brake-releasing power supply device for elevator
CN202245574U (en) * 2012-02-02 2012-05-30 兰云峰 Non-universal equipment for elevator encryption
CN202440195U (en) * 2012-02-15 2012-09-19 湖南奥莎富士电梯股份有限公司 Star-sealing delay circuit

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000309475A (en) * 2000-01-01 2000-11-07 Mitsubishi Electric Corp Elevator device
WO2007139477A1 (en) * 2006-06-01 2007-12-06 Digisign Ab Circuit device for a braked motor
CN102060220A (en) * 2009-11-18 2011-05-18 林浩生 Automatic rescue device for elevator
CN201980827U (en) * 2011-01-27 2011-09-21 东莞市快意电梯有限公司 Brake-releasing power supply device for elevator
CN202245574U (en) * 2012-02-02 2012-05-30 兰云峰 Non-universal equipment for elevator encryption
CN202440195U (en) * 2012-02-15 2012-09-19 湖南奥莎富士电梯股份有限公司 Star-sealing delay circuit

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Effective date of registration: 20180427

Address after: 313000 1-1-501 room, Nanlin garden, Ren Rui Road, Nanxun Town, Nanxun District, Huzhou, Zhejiang

Patentee after: Pan Guoqiang

Address before: 313009 6 Qiang Hua Road, Nanxun Economic Development Zone, Huzhou, Zhejiang (Ding Jia Gang Village)

Patentee before: ZHEJIANG NANAO ELEVATOR Co.,Ltd.

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Address after: Building 2, No. 660, Nanlin Middle Road, Nanxun Town, Nanxun District, Huzhou City, Zhejiang Province 313000

Patentee after: Huzhou Huti Association Elevator Technology Service Co.,Ltd.

Address before: 313000 1-1-501 room, Nanlin garden, Ren Rui Road, Nanxun Town, Nanxun District, Huzhou, Zhejiang

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Application publication date: 20130123

Assignee: AOTE RAMBO ELEVATOR Co.,Ltd.

Assignor: Huzhou Huti Association Elevator Technology Service Co.,Ltd.

Contract record no.: X2022330000746

Denomination of invention: A star sealing method for permanent magnet synchronous gearless traction machine of elevator

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Assignee: QUIO ELEVATOR CO.,LTD.

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Denomination of invention: A star sealing method for permanent magnet synchronous gearless traction machine of elevator

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Assignee: Zhejiang Anjia express Elevator Co.,Ltd.

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Denomination of invention: A star sealing method for permanent magnet synchronous gearless traction machine of elevator

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Assignee: Zhejiang Zhonghe Thyssen Elevator Co.,Ltd.

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Contract record no.: X2022330000767

Denomination of invention: A star sealing method for permanent magnet synchronous gearless traction machine of elevator

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Assignee: ZHEJIANG ELLY ELEVATOR Co.,Ltd.

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Denomination of invention: A star sealing method for permanent magnet synchronous gearless traction machine of elevator

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Assignee: WEIBO ELEVATOR Co.,Ltd.

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Denomination of invention: A star sealing method for permanent magnet synchronous gearless traction machine of elevator

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Assignee: Zhejiang Huanyu Technology Co.,Ltd.

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Denomination of invention: A star sealing method for permanent magnet synchronous gearless traction machine of elevator

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Assignee: Zhejiang fujimei Elevator Co.,Ltd.

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Denomination of invention: A star sealing method for permanent magnet synchronous gearless traction machine of elevator

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Assignee: ZHEJIANG VOSAM ELEVATOR CO.,LTD.

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Denomination of invention: A star sealing method for permanent magnet synchronous gearless traction machine of elevator

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Assignee: BOSTON ELEVATOR (HUZHOU) Co.,Ltd.

Assignor: Huzhou Huti Association Elevator Technology Service Co.,Ltd.

Contract record no.: X2022330000759

Denomination of invention: A star sealing method for permanent magnet synchronous gearless traction machine of elevator

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Assignee: ZHEJIANG QIANBAO SEIKO EQUIPMENT CO.,LTD.

Assignor: Huzhou Huti Association Elevator Technology Service Co.,Ltd.

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Denomination of invention: A star sealing method for permanent magnet synchronous gearless traction machine of elevator

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Assignee: LGEER ELEVATOR CO.,LTD.

Assignor: Huzhou Huti Association Elevator Technology Service Co.,Ltd.

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Denomination of invention: A star sealing method for permanent magnet synchronous gearless traction machine of elevator

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Assignee: Zhejiang Huaxia Elevator Co.,Ltd.

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Contract record no.: X2022330000762

Denomination of invention: A star sealing method for permanent magnet synchronous gearless traction machine of elevator

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Assignee: FODUS ELEVATOR Co.,Ltd.

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Denomination of invention: A star sealing method for permanent magnet synchronous gearless traction machine of elevator

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Assignee: ZHEJIANG TILSON ELEVATOR Co.,Ltd.

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Denomination of invention: A star sealing method for permanent magnet synchronous gearless traction machine of elevator

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Denomination of invention: A star sealing method for permanent magnet synchronous gearless traction machine of elevator

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Denomination of invention: A star sealing method for permanent magnet synchronous gearless traction machine of elevator

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Denomination of invention: A star sealing method for permanent magnet synchronous gearless traction machine of elevator

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Denomination of invention: A star sealing method for permanent magnet synchronous gearless traction machine of elevator

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Denomination of invention: A star sealing method for permanent magnet synchronous gearless traction machine of elevator

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Denomination of invention: A star sealing method for permanent magnet synchronous gearless traction machine of elevator

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Denomination of invention: A star sealing method for permanent magnet synchronous gearless traction machine of elevator

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Denomination of invention: A star sealing method for permanent magnet synchronous gearless traction machine of elevator

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Denomination of invention: A star sealing method for permanent magnet synchronous gearless traction machine of elevator

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Record date: 20221213

Application publication date: 20130123

Assignee: Huzhou Lida Boshi Elevator Co.,Ltd.

Assignor: Huzhou Huti Association Elevator Technology Service Co.,Ltd.

Contract record no.: X2022330000780

Denomination of invention: A star sealing method for permanent magnet synchronous gearless traction machine of elevator

Granted publication date: 20140924

License type: Common License

Record date: 20221215

Application publication date: 20130123

Assignee: Huzhou Jiaye Jiaju Elevator Co.,Ltd.

Assignor: Huzhou Huti Association Elevator Technology Service Co.,Ltd.

Contract record no.: X2022330000769

Denomination of invention: A star sealing method for permanent magnet synchronous gearless traction machine of elevator

Granted publication date: 20140924

License type: Common License

Record date: 20221213

Application publication date: 20130123

Assignee: Huzhou Senge Machinery Technology Co.,Ltd.

Assignor: Huzhou Huti Association Elevator Technology Service Co.,Ltd.

Contract record no.: X2022330000768

Denomination of invention: A star sealing method for permanent magnet synchronous gearless traction machine of elevator

Granted publication date: 20140924

License type: Common License

Record date: 20221213

EE01 Entry into force of recordation of patent licensing contract
EE01 Entry into force of recordation of patent licensing contract

Application publication date: 20130123

Assignee: CIVIL ELEVATOR Co.,Ltd.

Assignor: Huzhou Huti Association Elevator Technology Service Co.,Ltd.

Contract record no.: X2022330000784

Denomination of invention: A star sealing method for permanent magnet synchronous gearless traction machine of elevator

Granted publication date: 20140924

License type: Common License

Record date: 20221216

Application publication date: 20130123

Assignee: FAST ELEVATOR CO.,LTD.

Assignor: Huzhou Huti Association Elevator Technology Service Co.,Ltd.

Contract record no.: X2022330000783

Denomination of invention: A star sealing method for permanent magnet synchronous gearless traction machine of elevator

Granted publication date: 20140924

License type: Common License

Record date: 20221216

Application publication date: 20130123

Assignee: LINGZHI ELEVATOR CO.,LTD.

Assignor: Huzhou Huti Association Elevator Technology Service Co.,Ltd.

Contract record no.: X2022330000782

Denomination of invention: A star sealing method for permanent magnet synchronous gearless traction machine of elevator

Granted publication date: 20140924

License type: Common License

Record date: 20221216

Application publication date: 20130123

Assignee: HUZHOU MDUNKS EXPRESS LIFT CO.,LTD.

Assignor: Huzhou Huti Association Elevator Technology Service Co.,Ltd.

Contract record no.: X2022330000781

Denomination of invention: A star sealing method for permanent magnet synchronous gearless traction machine of elevator

Granted publication date: 20140924

License type: Common License

Record date: 20221216

Application publication date: 20130123

Assignee: DELFAR ELEVATOR CO.,LTD.

Assignor: Huzhou Huti Association Elevator Technology Service Co.,Ltd.

Contract record no.: X2022330000785

Denomination of invention: A star sealing method for permanent magnet synchronous gearless traction machine of elevator

Granted publication date: 20140924

License type: Common License

Record date: 20221216

EE01 Entry into force of recordation of patent licensing contract
EE01 Entry into force of recordation of patent licensing contract

Application publication date: 20130123

Assignee: HUZHOU DONGSU ELEVATOR PARTS Co.,Ltd.

Assignor: Huzhou Huti Association Elevator Technology Service Co.,Ltd.

Contract record no.: X2022330000793

Denomination of invention: A star sealing method for permanent magnet synchronous gearless traction machine of elevator

Granted publication date: 20140924

License type: Common License

Record date: 20221219

Application publication date: 20130123

Assignee: Kemanpu Elevator (Zhejiang) Co.,Ltd.

Assignor: Huzhou Huti Association Elevator Technology Service Co.,Ltd.

Contract record no.: X2022330000801

Denomination of invention: A star sealing method for permanent magnet synchronous gearless traction machine of elevator

Granted publication date: 20140924

License type: Common License

Record date: 20221221

Application publication date: 20130123

Assignee: Zhongwo Express (Zhejiang) Elevator Co.,Ltd.

Assignor: Huzhou Huti Association Elevator Technology Service Co.,Ltd.

Contract record no.: X2022330000802

Denomination of invention: A star sealing method for permanent magnet synchronous gearless traction machine of elevator

Granted publication date: 20140924

License type: Common License

Record date: 20221221

Application publication date: 20130123

Assignee: Shengxun Elevator (Zhejiang) Co.,Ltd.

Assignor: Huzhou Huti Association Elevator Technology Service Co.,Ltd.

Contract record no.: X2022330000803

Denomination of invention: A star sealing method for permanent magnet synchronous gearless traction machine of elevator

Granted publication date: 20140924

License type: Common License

Record date: 20221221

Application publication date: 20130123

Assignee: Jiage Technology (Zhejiang) Co.,Ltd.

Assignor: Huzhou Huti Association Elevator Technology Service Co.,Ltd.

Contract record no.: X2022330000791

Denomination of invention: A star sealing method for permanent magnet synchronous gearless traction machine of elevator

Granted publication date: 20140924

License type: Common License

Record date: 20221219

Application publication date: 20130123

Assignee: Zhejiang Shiyang Elevator Co.,Ltd.

Assignor: Huzhou Huti Association Elevator Technology Service Co.,Ltd.

Contract record no.: X2022330000808

Denomination of invention: A star sealing method for permanent magnet synchronous gearless traction machine of elevator

Granted publication date: 20140924

License type: Common License

Record date: 20221221

Application publication date: 20130123

Assignee: ZHEJIANG GME Co.,Ltd.

Assignor: Huzhou Huti Association Elevator Technology Service Co.,Ltd.

Contract record no.: X2022330000807

Denomination of invention: A star sealing method for permanent magnet synchronous gearless traction machine of elevator

Granted publication date: 20140924

License type: Common License

Record date: 20221221

Application publication date: 20130123

Assignee: Zhejiang Gangtong Elevator Co.,Ltd.

Assignor: Huzhou Huti Association Elevator Technology Service Co.,Ltd.

Contract record no.: X2022330000796

Denomination of invention: A star sealing method for permanent magnet synchronous gearless traction machine of elevator

Granted publication date: 20140924

License type: Common License

Record date: 20221221

Application publication date: 20130123

Assignee: HUZHOU DMGE ELEVATOR CO.,LTD.

Assignor: Huzhou Huti Association Elevator Technology Service Co.,Ltd.

Contract record no.: X2022330000797

Denomination of invention: A star sealing method for permanent magnet synchronous gearless traction machine of elevator

Granted publication date: 20140924

License type: Common License

Record date: 20221221

Application publication date: 20130123

Assignee: LINGDIAN ELEVATOR Co.,Ltd.

Assignor: Huzhou Huti Association Elevator Technology Service Co.,Ltd.

Contract record no.: X2022330000788

Denomination of invention: A star sealing method for permanent magnet synchronous gearless traction machine of elevator

Granted publication date: 20140924

License type: Common License

Record date: 20221219

Application publication date: 20130123

Assignee: Huzhou Fuji Elevator Co.,Ltd.

Assignor: Huzhou Huti Association Elevator Technology Service Co.,Ltd.

Contract record no.: X2022330000798

Denomination of invention: A star sealing method for permanent magnet synchronous gearless traction machine of elevator

Granted publication date: 20140924

License type: Common License

Record date: 20221221

Application publication date: 20130123

Assignee: Huzhou Jingjin Machinery Co.,Ltd.

Assignor: Huzhou Huti Association Elevator Technology Service Co.,Ltd.

Contract record no.: X2022330000799

Denomination of invention: A star sealing method for permanent magnet synchronous gearless traction machine of elevator

Granted publication date: 20140924

License type: Common License

Record date: 20221221

Application publication date: 20130123

Assignee: Zhejiang Jutuo Technology Co.,Ltd.

Assignor: Huzhou Huti Association Elevator Technology Service Co.,Ltd.

Contract record no.: X2022330000800

Denomination of invention: A star sealing method for permanent magnet synchronous gearless traction machine of elevator

Granted publication date: 20140924

License type: Common License

Record date: 20221221

Application publication date: 20130123

Assignee: Gelsen Elevator Co.,Ltd.

Assignor: Huzhou Huti Association Elevator Technology Service Co.,Ltd.

Contract record no.: X2022330000789

Denomination of invention: A star sealing method for permanent magnet synchronous gearless traction machine of elevator

Granted publication date: 20140924

License type: Common License

Record date: 20221219

Application publication date: 20130123

Assignee: ZHEJIANG MATO DRIVE EQUIPMENT CO.,LTD.

Assignor: Huzhou Huti Association Elevator Technology Service Co.,Ltd.

Contract record no.: X2022330000795

Denomination of invention: A star sealing method for permanent magnet synchronous gearless traction machine of elevator

Granted publication date: 20140924

License type: Common License

Record date: 20221219

Application publication date: 20130123

Assignee: ZHEJIANG HANMEIDE ELEVATOR Co.,Ltd.

Assignor: Huzhou Huti Association Elevator Technology Service Co.,Ltd.

Contract record no.: X2022330000794

Denomination of invention: A star sealing method for permanent magnet synchronous gearless traction machine of elevator

Granted publication date: 20140924

License type: Common License

Record date: 20221219

Application publication date: 20130123

Assignee: Zhejiang Xinxun Technology Co.,Ltd.

Assignor: Huzhou Huti Association Elevator Technology Service Co.,Ltd.

Contract record no.: X2022330000806

Denomination of invention: A star sealing method for permanent magnet synchronous gearless traction machine of elevator

Granted publication date: 20140924

License type: Common License

Record date: 20221221

Application publication date: 20130123

Assignee: Huzhou tongkuai Intelligent Equipment Co.,Ltd.

Assignor: Huzhou Huti Association Elevator Technology Service Co.,Ltd.

Contract record no.: X2022330000805

Denomination of invention: A star sealing method for permanent magnet synchronous gearless traction machine of elevator

Granted publication date: 20140924

License type: Common License

Record date: 20221221

Application publication date: 20130123

Assignee: Huzhou Bosi Elevator Technology Co.,Ltd.

Assignor: Huzhou Huti Association Elevator Technology Service Co.,Ltd.

Contract record no.: X2022330000804

Denomination of invention: A star sealing method for permanent magnet synchronous gearless traction machine of elevator

Granted publication date: 20140924

License type: Common License

Record date: 20221221

Application publication date: 20130123

Assignee: SUXUN ELEVATOR Co.,Ltd.

Assignor: Huzhou Huti Association Elevator Technology Service Co.,Ltd.

Contract record no.: X2022330000790

Denomination of invention: A star sealing method for permanent magnet synchronous gearless traction machine of elevator

Granted publication date: 20140924

License type: Common License

Record date: 20221219

Application publication date: 20130123

Assignee: PLANCK ELEVATOR CO.,LTD.

Assignor: Huzhou Huti Association Elevator Technology Service Co.,Ltd.

Contract record no.: X2022330000792

Denomination of invention: A star sealing method for permanent magnet synchronous gearless traction machine of elevator

Granted publication date: 20140924

License type: Common License

Record date: 20221219