EP3245152A1 - A conveyor system - Google Patents

A conveyor system

Info

Publication number
EP3245152A1
EP3245152A1 EP15828504.9A EP15828504A EP3245152A1 EP 3245152 A1 EP3245152 A1 EP 3245152A1 EP 15828504 A EP15828504 A EP 15828504A EP 3245152 A1 EP3245152 A1 EP 3245152A1
Authority
EP
European Patent Office
Prior art keywords
conveyor
heat transfer
car
air
transfer device
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP15828504.9A
Other languages
German (de)
English (en)
French (fr)
Inventor
Mika Lohtander
Leevi PAAJANEN
Tapani SIIVO
Antti JORTIKKA
Hannu YLISIURUA
Emma PAASONEN
Jyrki MONTONEN
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Lappeenrannan Teknillinen Yliopisto
Original Assignee
Lappeenrannan Teknillinen Yliopisto
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Lappeenrannan Teknillinen Yliopisto filed Critical Lappeenrannan Teknillinen Yliopisto
Publication of EP3245152A1 publication Critical patent/EP3245152A1/en
Withdrawn legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B11/00—Main component parts of lifts in, or associated with, buildings or other structures
    • B66B11/04—Driving gear ; Details thereof, e.g. seals
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B11/00—Main component parts of lifts in, or associated with, buildings or other structures
    • B66B11/0035—Arrangement of driving gear, e.g. location or support
    • B66B11/0045—Arrangement of driving gear, e.g. location or support in the hoistway
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B11/00—Main component parts of lifts in, or associated with, buildings or other structures
    • B66B11/0035—Arrangement of driving gear, e.g. location or support
    • B66B11/0045—Arrangement of driving gear, e.g. location or support in the hoistway
    • B66B11/005—Arrangement of driving gear, e.g. location or support in the hoistway on the car

Definitions

  • the disclosure relates generally to a conveyor system that can be for example an elevator system or any other conveyor system where a conveyor car is movable in a vertical, horizontal, inclined, or otherwise positioned conveyor shaft. More particularly, the disclosure relates to cooling an electrical drive of a conveyor system.
  • a conveyor system comprises a conveyor shaft, a conveyor car movable in the conveyor shaft, an electrical drive for moving the conveyor car, and a cooling system for cooling the electrical drive.
  • the conveyor system can be for example an elevator system or any other conveyor system where the conveyor car is movable in a vertical, horizontal, inclined, or otherwise positioned conveyor shaft.
  • the electrical drive comprises an electrical motor for moving the conveyor car and a frequency converter or another supply device for driving the electrical motor in a controllable way.
  • the cooling system can be an open cooling system where the surrounding air is blown to the electrical motor and to the supply device. In many cases, the cooling system is however a closed circulation cooling system in order to avoid accumulation of dust and/or other impurities on cooling surfaces of the electrical motor and the supply device.
  • a closed circulation cooling system comprises typically one or more heat transfer devices for transferring heat from cooling fluid to surrounding air and equipment for circulating the cooling fluid between the electrical drive and the one or more heat transfer devices.
  • the cooling fluid can be for example water in which case the heat transfer device is a radiator for transferring heat from the water to the surrounding air. It is also possible that the cooling fluid is air or some other gas in which case the heat transfer device is a gas-to-air heat exchanger.
  • the closed circulation cooling system comprises typically one or more fans for blowing air to the one or more heat transfer devices. In order to minimize the energy consumption of the conveyor system, the operating times of the fans should be as short as possible. Furthermore, the overall operat- ing life-time of the fans is limited especially in cases where the fans have grease lubricated encapsulated bearings.
  • a conveyor system that can be for example an elevator system or any other system where a conveyor car is movable in a vertical, horizontal, inclined, or otherwise positioned conveyor shaft.
  • a conveyor system according to the invention comprises: - a conveyor shaft,
  • the cooling system comprises a heat transfer device for transferring heat from cooling fluid to surrounding air and equipment for circulating the cooling fluid between the electrical drive and the heat transfer device.
  • the heat transfer device is located in an air-flow channel connected to the conveyor shaft and arranged to conduct air moved by the conveyor car when the conveyor car is moving. Therefore, the air-flow through the heat transfer device is at least partly caused by movement of the conveyor car in the conveyor shaft and thus the movement of the conveyor car is utilized for cooling the electrical drive.
  • the cooling system comprises two or more heat transfer devices in two or more air-flow channels connected to the conveyor shaft in order to effectively utilize the air movement caused by the conveyor car for cooling the electrical drive.
  • figure 1 illustrates a conveyor system according to an exemplifying and non- limiting embodiment of the invention
  • figure 2 illustrates a conveyor system according to another exemplifying and non- limiting embodiment of the invention.
  • Figure 1 shows a schematic a section view of a conveyor system according to an exemplifying and non-limiting embodiment of the invention.
  • the conveyor system is an elevator system.
  • the section plane is parallel with the xz-plane of a coordinate system 190.
  • the conveyor system comprises a sub- stantially vertical conveyor shaft 101 that is typically a part of a building e.g. a block of flats.
  • the conveyor system comprises a conveyor car 102 movable in the conveyor shaft 101 and an electrical drive 103 for moving the conveyor car.
  • the electrical drive 103 comprises an electrical motor 106 for moving the conveyor car 102 and for example a frequency converter 107 for driving the electrical motor in a controllable way.
  • the electrical motor 106 can be for example an induction motor or a permanent magnet synchronous motor.
  • the conveyor system comprises advantageously a counterweight so that the electrical drive 103 has to overcome only the weight difference between the conveyor car 102 carrying a possible load and the counterweight.
  • the counterweight is not shown in figure 1 but the counterweight can be behind the wall of the conveyor shaft 101 that is parallel with the xz-plane of the coordinate system 190.
  • the conveyor system comprises a cooling system for cooling the electrical drive 103.
  • the cooling system comprises a heat transfer device 104 for transferring heat from cooling fluid to the surrounding air and equipment for circulating the cooling fluid between the electrical drive 103 and the heat transfer device 104.
  • the heat transfer device 104 is located in an air-flow channel 105 connected to the conveyor shaft 101 and arranged to conduct air moved by the conveyor car when the conveyor car is moving. Thus, the air-flow through the heat transfer device 104 is at least partly caused by the movement of the conveyor car 102.
  • a dashed-line arrow depicts the air-flow through the air-flow channel 105 when the conveyor car 102 is moving upwards and a dash-and-dot line arrow depicts the air-flow through the air-flow channel 105 when the conveyor car is moving downwards.
  • the cooling fluid is liquid, e.g. water
  • the equipment for circulating the cooling fluid comprises a pump 1 10 and a piping 1 1 1 .
  • the heat transfer device 104 is a radiator for transferring heat from the liquid to the surrounding air.
  • the cooling fluid is gas, e.g.
  • a conveyor system comprises a blower 1 12 for boosting the air-flow in the air-flow channel 105.
  • the conveyor system may comprise a controller and one or more meas- urement sensors for controlling the blower 1 12 at least partly on the basis of the temperature of the cooling fluid.
  • the controller can be e.g. part of the frequency converter 107.
  • a measurement sensor can be e.g. a temperature sensor for measuring the temperature of the cooling fluid.
  • the blower 1 12 can be controlled for example so that the blower is activated when the temperature of the cooling fluid exceeds a pre-determined safety limit.
  • FIG. 2 shows a schematic section view of a conveyor system according to an exemplifying and non-limiting embodiment of the invention.
  • the conveyor system is an elevator system.
  • the section plane is parallel with the xz-plane of a coordinate system 290.
  • the conveyor system comprises a substantially vertical conveyor shaft 201 , a conveyor car 202 movable in the conveyor shaft 201 , and an electrical drive 203 for moving the conveyor car.
  • the conveyor system comprises advantageously a counterweight so that the electrical drive 203 has to overcome only the weight difference between the conveyor car 202 carrying a possible load and the counterweight.
  • the counterweight is not shown in figure 2.
  • the conveyor system comprises a cooling system for cooling the electrical drive 203.
  • the cooling system comprises heat transfer devices 204 and 208 for transferring heat from cooling fluid to the surrounding air and equipment for circulating the cooling fluid between the electrical drive 203 and the heat transfer devices.
  • the heat transfer device 204 is located in an air-flow channel 205 connected to the conveyor shaft 201 and arranged to conduct air moved by the conveyor car when the conveyor car is moving.
  • the heat transfer device 208 is located in an air-flow channel 209 connected to the conveyor shaft 201 and arranged to conduct air moved by the conveyor car when the conveyor car is moving.
  • the air-flows through the heat transfer devices 204 and 208 are at least partly caused by the movement of the conveyor car in the conveyor shaft 201 .
  • dashed-line arrows depict the air-flows through the air-flow channels 205 and 209 when the conveyor car 202 is moving upwards and dash-and-dot line ar- rows depict the air-flows through the air-flow channels 205 and 209 when the conveyor car is moving downwards.

Landscapes

  • Engineering & Computer Science (AREA)
  • Civil Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Structural Engineering (AREA)
  • Cooling Or The Like Of Electrical Apparatus (AREA)
EP15828504.9A 2015-01-15 2015-12-30 A conveyor system Withdrawn EP3245152A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FI20155026A FI126670B (fi) 2015-01-15 2015-01-15 Kuljetinjärjestelmä
PCT/FI2015/050957 WO2016113460A1 (en) 2015-01-15 2015-12-30 A conveyor system

Publications (1)

Publication Number Publication Date
EP3245152A1 true EP3245152A1 (en) 2017-11-22

Family

ID=55229743

Family Applications (1)

Application Number Title Priority Date Filing Date
EP15828504.9A Withdrawn EP3245152A1 (en) 2015-01-15 2015-12-30 A conveyor system

Country Status (3)

Country Link
EP (1) EP3245152A1 (fi)
FI (1) FI126670B (fi)
WO (1) WO2016113460A1 (fi)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102019205381A1 (de) * 2019-04-15 2020-10-15 Thyssenkrupp Ag Komponentenkühlung einer Aufzuganlage mittels Kamineffekt
CN110701723A (zh) * 2019-10-11 2020-01-17 费吕平 一种智能型电梯通风装置

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0236747A (ja) * 1988-07-26 1990-02-06 Toshiba Corp エレベータのリニアモータ冷却装置
WO2000038488A1 (en) * 1998-12-22 2000-06-29 Otis Elevator Company Liquid cooled elevator machine drive
JP2014005090A (ja) * 2012-06-21 2014-01-16 Hitachi Ltd エレベータ装置

Also Published As

Publication number Publication date
FI126670B (fi) 2017-03-31
FI20155026A (fi) 2016-07-16
WO2016113460A1 (en) 2016-07-21

Similar Documents

Publication Publication Date Title
US10212861B2 (en) Variable frequency drive cabinet ventilation system, apparatus and method
US20230170763A1 (en) Cooling tower having thermally managed motor
CN105346367B (zh) 一种电动汽车冷却方法及系统
KR20080071474A (ko) 공조용 토출 장치 시스템, 배출열 반송 장치 시스템 및이들을 구비한 공조 시스템
US20160164392A1 (en) Linear motor
WO2016113460A1 (en) A conveyor system
JP6140612B2 (ja) 給水装置
CN202269141U (zh) 一种通信机柜的散热装置
CN101687604B (zh) 具有用于冷却电梯部件的对流气流的热电温度控制器
CN108141986B (zh) 例如用于冷却换流器阀厅的冷却装置
EP1873109A1 (en) Heat diffusion device for elevator hoistway
JP2008128538A (ja) 熱発生設備の冷却方法、および冷却装置
CN103334822A (zh) 一种混合动力总成冷却系统
JP5541480B2 (ja) 局所清浄化空調システム
CN203481652U (zh) 一种高压开关柜
CN106276446A (zh) 电梯控制装置
CN201388355Y (zh) 散热装置及具备有散热装置的电子零件模组箱、机房
CN204145262U (zh) 一种变频柜及配置有该变频柜的空气压缩机
US20120202415A1 (en) Fanned vent cover insert
CN102647889A (zh) 通信机柜的通风散热系统
CN205092728U (zh) 一种钢厂用高速同步电动机
CN202955783U (zh) 一种地坑安装式空调冷风机
CN202565651U (zh) 一种基于风道式通信柜的散热装置
JP2014005090A (ja) エレベータ装置
US11363744B2 (en) Cooling system and cooling method

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 20170814

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

AX Request for extension of the european patent

Extension state: BA ME

RIN1 Information on inventor provided before grant (corrected)

Inventor name: JORTIKKA, ANTTI

Inventor name: PAASONEN, EMMA

Inventor name: LOHTANDER, MIKA

Inventor name: MONTONEN, JYRKI

Inventor name: PAAJANEN, LEEVI

Inventor name: YLISIURUA, HANNU

Inventor name: SIIVO, TAPANI

RIN1 Information on inventor provided before grant (corrected)

Inventor name: MONTONEN, JYRKI

Inventor name: LOHTANDER, MIKA

Inventor name: PAASONEN, EMMA

Inventor name: SIIVO, TAPANI

Inventor name: PAAJANEN, LEEVI

Inventor name: JORTIKKA, ANTTI

Inventor name: YLISIURUA, HANNU

DAV Request for validation of the european patent (deleted)
DAX Request for extension of the european patent (deleted)
STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 20190702