EP3492646A1 - Motorkühlsystem für eine waschmaschine - Google Patents

Motorkühlsystem für eine waschmaschine Download PDF

Info

Publication number
EP3492646A1
EP3492646A1 EP17204350.7A EP17204350A EP3492646A1 EP 3492646 A1 EP3492646 A1 EP 3492646A1 EP 17204350 A EP17204350 A EP 17204350A EP 3492646 A1 EP3492646 A1 EP 3492646A1
Authority
EP
European Patent Office
Prior art keywords
pipe
motor
cooling system
washing machine
coolant
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Withdrawn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
EP17204350.7A
Other languages
English (en)
French (fr)
Inventor
Yusuf AK
Nevzat YALIN
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.)
Vestel Elektronik Sanayi ve Ticaret AS
Original Assignee
Vestel Elektronik Sanayi ve Ticaret AS
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 Vestel Elektronik Sanayi ve Ticaret AS filed Critical Vestel Elektronik Sanayi ve Ticaret AS
Priority to EP17204350.7A priority Critical patent/EP3492646A1/de
Priority to TR2017/21500A priority patent/TR201721500A2/tr
Publication of EP3492646A1 publication Critical patent/EP3492646A1/de
Withdrawn legal-status Critical Current

Links

Images

Classifications

    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F37/00—Details specific to washing machines covered by groups D06F21/00 - D06F25/00
    • D06F37/30—Driving arrangements 
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F39/00—Details of washing machines not specific to a single type of machines covered by groups D06F9/00 - D06F27/00 
    • D06F39/006—Recovery arrangements, e.g. for the recovery of energy or water
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F58/00—Domestic laundry dryers
    • D06F58/20—General details of domestic laundry dryers 
    • D06F58/206—Heat pump arrangements

Definitions

  • This invention refers to a motor cooling system for washing machine according to claim 1.
  • a common washing machine is a machine that performs function like water intake, washing, heating, water discharging, squeezing systems, etc. by means of a program or manually. These functions are performed using various parts of the washing machine, like water inlet fans, speed control unit, flushing motor, thermostat, heating housing, etc.
  • a motor is provided to drive various functions of the washing machine. This motor specifically helps during washing and rinsing operations. As a result of operating of the motor, heat is generated. This heating of the engine is a common problem in the washing machine. Such heating may lead to decreased efficient of the motor, overloading issues and even a breakdown of the motor.
  • EP 1996757 B1 discloses a washer/dryer wherein its drum is rotated by means of a belt driven via the electric motor and overheating is prevented by blowing air over the electric motor by making use of the movement of the idler pulley pressing on the belt.
  • Chinese Patent Publication No. CN105019201 A discloses a washing machine, especially to a zinc-alloy dry cleaning machine with a squirrel-cage type motor and union spring buffers.
  • the zinc-alloy dry cleaning machine comprises a casing and a washing cylinder, and further comprises a heat pump drying system and a solvent recovery system.
  • an inner buffer assembly comprises four pulling union spring buffers and two supporting union spring buffers.
  • a squirrel-cage type water cooling motor assembly comprises a motor housing, a front motor cover plate, a rear motor cover plate, a motor shaft, a terminal pin base, a stator and a rotor.
  • a two-stage shock-absorbing structure of an inner shock-absorbing assembly ensures the stable operation of the zinc-alloy dry cleaning machine regardless of the inner rotation speed and unbalance shaking of the washing cylinder.
  • the squirrel-cage type water cooling motor assembly employs a casted spiral cooling pipe pre-embedded on the cylinder of the motor housing, and the two ends of the spiral cooling pipe are respectively communicated with a water outlet boss and a water inlet boss. Assembly after separate processing is allowed, which is especially convenient and fast.
  • the object of the present invention is to provide an efficient and fast mechanism to cool down the motor of the washing machine.
  • a motor cooling system for washing machine comprises a motor adapted to perform a washing operation of the washing machine, and a first pipe wound around an outer surface of the motor, the first pipe is adapted to flow a coolant through it, the first pipe is in heat transfer coupling with the motor, such that when the motor is heated due to performance of the washing operation, the motor transfers heat to the coolant flowing through the first tube.
  • This embodiment is helpful, as it provides an efficient mechanism for cooling down the motor.
  • the first pipe is directly in touch with the outer surface of the motor, which provides for faster cooling.
  • coolant which has high heat exchange coefficient, inside the first pipe helps to achieve faster cooling.
  • the first pipe is wound onto the outer surface in a helical fashion.
  • the motor cooling system comprising a cooling pump connected to the first pipe at both end of the first pipe, the cooling pump is adapted to regulate circulation of the coolant through the first pipe.
  • This embodiment is helpful, as it provides a mechanism to fasten or slowing down of flowing of the coolant through the first pipe, thus providing the heat transfer at a desired rate from the motor.
  • the flow of the coolant shall be required at a lower speed, and when the motor is heated more, the rate of circulation required shall be faster.
  • Such circulation of the coolant can be managed through the cooling pump.
  • the cooling pump is adapted to be driven by rotation energy from the motor of the washing machine.
  • This embodiment is helpful, as it eliminates the need for additional energy source or external energy source to power the functioning of the cooling pump.
  • the first pipe is made of copper.
  • This embodiment is helpful, as cooper has high heat conductivity, and shall elevate transfer of heat from the motor to the coolant running in the first pipe made of coopper.
  • the motor cooling system comprises a second pipe wrapped around the first pipe, the second pipe is adapted to flow a fluid through it and is adapted to be in heat transfer coupling with the first pipe, so that the fluid receives heat from the coolant flowing through the first pipe.
  • This embodiment is beneficial, as it provides a mechanism to cool down the coolant, so that the efforts are not required at all or less efforts are required to be made to cool down the coolant.
  • the second pipe is wound onto the first pipe in a helical fashion.
  • This embodiment is beneficial as it helps to cover the maximum area of the first pipe by the second pipe, thus resulting in faster heat transfer from the coolant to the fluid flowing through the second piper, result in faster cooling of the coolant.
  • the second pipe is made of aluminum.
  • This embodiment is helpful, as aluminium has high heat conductivity, as well as radiance, which shall elevate transfer of heat from the coolant to the fluid running in the second pipe and also enables radiance of the heat to external environment for facilitating faster cooling of the coolant.
  • the fluid is water.
  • the embodiment is beneficial, as water is a good conductor of heat, which can facilitate cooling of the coolant at a good rate. Also, this heated water can be used in various application of household use too.
  • the second pipe is connected to a water inlet of the washing machine at a first end of the second pipe, and the second pipe is connected to a hot water section of the washing machine at its second end, wherein water flows from the first end to the second, and the hot water section is an area of the washing machine from where the hot water is taken further for washing the clothe.
  • This embodiment is especially helpful, as it provides for a self-sufficient heating of the water required during washing operation inside the washing machine.
  • the motor cooling system comprises a fluid pump connected to the second pipe and adapted to regulate circulation of the fluid through the second pipe.
  • This embodiment is helpful, as it provides mechanism to fasten or slowing down of flowing of the fluid through the second pipe, thus providing the heat transfer at a desired rate from the coolant. Also, in cases, where the coolant is less heated, the flow of the fluid shall be required at a lower speed, while the coolant is heated more, the rate of circulation of fluid required shall be faster. Such circulation of the fluid can be managed through the fluid pump.
  • the fluid pump is adapted to be driven by rotation energy from the motor of the washing machine.
  • This embodiment is helpful, as it eliminates need for an additional energy source or an external energy source to power the functioning of the fluid pump.
  • the first pipe is connected to an earth connection of the washing machine, so as to allow any current flowing through the first pipe to be discharged through the earth connection.
  • This embodiment is helpful, as it cares of a situation when a high current passes through the first pipe, so that current should not flow through the motor, and saving the motor from any kind of circuit based damages.
  • the coolant is selected from the group R401A, R507, or R12 or a combination thereof.
  • This embodiment is helpful, as it provides refrigerant level coolants and shall help to cool down the motor at the faster pace.
  • the present invention focuses on cooling down motor of a washing machine, which heats up due to the washing and rinsing function being performed.
  • the heating may lead to unnecessary overloading of the motor, which reduces the efficiency of performance of the motor, and may further leads to damage of the motor.
  • heat exchange occurs directly occur from the motor to a coolant via conduction, so the cooling down should be performed faster.
  • another heat exchange mechanism is provided between the coolant and fluid, in one embodiment of the invention.
  • the heated fluid within the washing machine, wherein the fluid provided is water is utilized whenever heated water is required for the washing functionality of the washing machine.
  • Fig. 1 shows a motor cooling system 1 for a washing machine, according to an embodiment of the invention.
  • the motor cooling system 1 includes a motor 2, which drives washing and rinsing functionalities of the washing machine. Due to performance of these operations, the motor gets heated up. Prolonged usage of the washing machine, without proper heat dissipation or cooling of the motor 2 can be harmful for motor 2.
  • a pipe structure 15 is provided which is in a physical coupling 16 with the motor 2.
  • the physical coupling 6 is provided by winding the pipe structure 15 onto the motor 2.
  • the pipe structure includes a first pipe 3 and a second pipe 7.
  • the second pipe 7 is wound onto the first pipe 3 in a helical fashion, and this pipe structure 15 of the first pipe 3 and the second pipe 7 is further wound over the motor 2.
  • the second pipe 7 can be wound in any other fashion onto the first pipe 3, such that it covers maximum surface area onto the first pipe 3.
  • the first pipe 3 flows a coolant 5 through it, so that to allow heat transfer from the motor 2 to the coolant 5.
  • the first pipe 3 can be made of any material having high thermal conductivity, so as to transfer heat faster from the motor 2 to the coolant 5.
  • the first pipe 3 is made of copper, which has one of the highest thermal conductivity among metals
  • the second pipe 7 flows a fluid 8 through it, which is conductive.
  • the fluid 8 receives heat from the coolant 5, so as to cool the coolant 5 to the maximum.
  • the second pipe 3 can be made of any material having high thermal conductivity, so as to transfer heat faster from the coolant 5 to the fluid 8.
  • the second pipe 7 is made of aluminum, which has one of the highest thermal conductivity among metals and also have good radiation efficiency. This will allow the excess heat which cannot be transferred to the fluid 8, to also be radiated to an atmosphere where the second pipe 7 is kept, so as to cool the coolant 5 fast.
  • the second pipe 7 is not required, rather only the first pipe 3 is provided, and the coolant 5 is cooled using a cooling mechanism to be provided with the washing machine.
  • the motor cooling system 1 is also provided with a cooling pump 6, which regulates flow of the coolant 5 through the first pipe 3.
  • the cooling pump is driven by the rotational energy of the motor 2, hence no more additional power source shall be required to drive the cooling pump 6.
  • a separate power source can be provided to drive the cooling pump 6 which can be either switched on and off manually by a user of the washing machine, or can be automatically switched on when the washing machine is switched on.
  • the cooling pump 6 is not provided, rather the movement of the coolant 5 occurs because of pressure difference creates due to different temperature regions, around the motor 2 and other areas of the first pipe 3 which are away from the motor 2.
  • the motor cooling system 1 is also provided with a fluid pump 13, which regulates flow of the fluid 8 through the second pipe 7.
  • the fluid pump 13 is driven by the rotational energy of the motor 2, hence no more additional power source shall be required to drive the fluid pump 13.
  • a separate power source can be provided to drive the fluid pump 13 which can be either switched on and off manually by a user of the washing machine, or can be automatically switched on when the washing machine is switched on.
  • the fluid pump 13 is not provided, rather the movement of the fluid 8 occurs because of pressure difference creates due to different temperature regions, around the motor 2 and other areas of the second pipe 7 which are away from the motor 2.
  • the fluid 8 is water.
  • the second pipe 7 has two ends, a first end 11 and a second end 12.
  • the second pipe 7 is connected to a water inlet 9 of the washing machine, which is receiving water from any external water source, at the first end 11, and connected to a hot water section 10 of the washing machine at the second end 12.
  • the hot water from the hot water section 10 is further utilized by the washing machine for its washing function or any other operations for which hot water is required. In this way, the water should not be heated using external power consumption, rather it provides a self-sufficient system for water heating with energy efficiency.
  • the second pipe 7 can directly be connected from an external water source in spite of water inlet 9 of the washing machine.
  • the second pipe 7 can drain off water after heating to water outlet of the washing machine, or directly to a sink outside of the washing machine.
  • any other fluid 8 can be used in spite of water, which has good thermal conductivity.
  • the first pipe 3 is connected to an earth connection 14 of the washing machine. This helps to allow any current accidentally flowing through the first pipe 3 to be discharged through the earth connection 14.
  • first pipe 3 is not required to be connected to the earth connection, by applying any measures to ensure that no current flows through the first pipe 3.
  • the second pipe 7 can also be connected to the earth connection 14 as a safety measure, so that, in case any current passes through the second pipe 7 can also be grounded through the earth connection 14.
  • Fig. 2 shows the pipe structure 15 of the first pipe and the second pipe being wounded onto an outer surface 4 of the motor 2. It is to be noted that the pipe structure 15 is wounded in helical fashion to provide maximum coverage onto the outer surface 4 of the motor 2. Maximum surface area coverage ensures higher rate of heat transfer from the outer surface 4 to the coolant inside the first pipe. With the current pipe structure 15, some part of the second pipe may also touch the outer surface 4, which also ensures the heat transfer from the outer surface 4 to the fluid flowing in second pipe too.
  • the coolant 5 can be selected from the group R401A, R507, or R12, or combination of one or more of these coolants.
  • the coolant can be any refrigerant or any other cooling material, which can provide fast heat transfer from the motor 2.
  • Fig 3 shows a sectional view of the pipe structure 15 being wounded onto the outer surface 4 of the motor 2.
  • the outer surface 4 is completely encapsulated onto the first pipe 3, and the second pipe 7 encapsulates the first pipe 3.
  • This arrangement of pipe structure 15 provides another way to provide efficient heat transfer between the outer surface and coolant 5, and between the coolant 5 and the fluid 8.
  • the heat transfer from the outer surface 4 is maximum with respect to the coolant used and the material of the first pipe 3.
  • Fig. 4 describes a flow chart depicting function of a motor cooling system for a washing machine.
  • the washing machine is turned-one.
  • step 102 due to driving for the washing and rinsing functions of the washing machine, the motor starts getting heated. Due to the heating of the motor, in step 103, the cooling pump and the fluid pump are started, so as to start circulating the coolant and the water.
  • step 104 as the coolant starts circulating through the first pipe, it starts receiving heat from the outer surface of the motor, due to the heat exchange coupling between the outer surface of the motor and the first pipe.
  • the water also starts receiving the heat from the coolant which has already started heating up due to receiving of heat from the outer surface of the motor.
  • step 106 the heated water is further taken to the hot water section of the washing machine, form where the hot water can be further utilized for various functions of washing machine, where hot water is required.
  • step 107 once the washing is done, the washing machine is turned off, and with this motor stops heating up, and the cooling pump and the fluid pump stops.
  • the present invention provides for a motor cooling system 1 for washing machine comprising a motor 2 which performs a washing operation of the washing machine, and a first pipe 3 wound around an outer surface 4 of the motor, the first pipe 3 enables flow of a coolant 5 through it, the first pipe 3 is in heat transfer coupling with the motor 2, such that when the motor 2 is heated due to performance of the washing operation, the motor 2 transfers heat to the coolant 5 flowing through the first pipe 3.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Detail Structures Of Washing Machines And Dryers (AREA)
  • Motor Or Generator Cooling System (AREA)
EP17204350.7A 2017-11-29 2017-11-29 Motorkühlsystem für eine waschmaschine Withdrawn EP3492646A1 (de)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP17204350.7A EP3492646A1 (de) 2017-11-29 2017-11-29 Motorkühlsystem für eine waschmaschine
TR2017/21500A TR201721500A2 (tr) 2017-11-29 2017-12-25 Bi̇r çamaşir maki̇nesi̇ne yöneli̇k motor soğutma si̇stemi̇

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP17204350.7A EP3492646A1 (de) 2017-11-29 2017-11-29 Motorkühlsystem für eine waschmaschine

Publications (1)

Publication Number Publication Date
EP3492646A1 true EP3492646A1 (de) 2019-06-05

Family

ID=60484287

Family Applications (1)

Application Number Title Priority Date Filing Date
EP17204350.7A Withdrawn EP3492646A1 (de) 2017-11-29 2017-11-29 Motorkühlsystem für eine waschmaschine

Country Status (2)

Country Link
EP (1) EP3492646A1 (de)
TR (1) TR201721500A2 (de)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19937629A1 (de) * 1999-08-10 2001-02-15 Bsh Bosch Siemens Hausgeraete Antriebsvorrichtung für eine Waschmaschine
EP2049722A1 (de) * 2006-08-01 2009-04-22 Arçelik Anonim Sirketi Waschmaschine
EP1996757B1 (de) 2006-03-17 2010-01-20 Arçelik Anonim Sirketi Waschtrockner
US20140202216A1 (en) * 2013-01-18 2014-07-24 Samsung Electronics Co., Ltd. Washing machines
CN105019201A (zh) 2015-06-30 2015-11-04 张志雄 鼠笼式电机由壬弹簧缓冲锌合金干洗机

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19937629A1 (de) * 1999-08-10 2001-02-15 Bsh Bosch Siemens Hausgeraete Antriebsvorrichtung für eine Waschmaschine
EP1996757B1 (de) 2006-03-17 2010-01-20 Arçelik Anonim Sirketi Waschtrockner
EP2049722A1 (de) * 2006-08-01 2009-04-22 Arçelik Anonim Sirketi Waschmaschine
US20140202216A1 (en) * 2013-01-18 2014-07-24 Samsung Electronics Co., Ltd. Washing machines
CN105019201A (zh) 2015-06-30 2015-11-04 张志雄 鼠笼式电机由壬弹簧缓冲锌合金干洗机

Also Published As

Publication number Publication date
TR201721500A2 (tr) 2019-06-21

Similar Documents

Publication Publication Date Title
US6700237B1 (en) Enclosed air cooler device for a rotational electrical machine
EP2077350B1 (de) Elektrisches Haushaltsgerät und Betriebsverfahren dafür
US6120247A (en) Room cooling fan apparatus
CN105375689B (zh) 具有第一循环和第二循环的电机
KR20180074764A (ko) 의류 건조기
RU2401346C1 (ru) Стиральная машина
CN111851016B (zh) 一种烘干装置、干衣机、洗干一体机和烘干方法
JP4777218B2 (ja) 衣類乾燥機
EP3492646A1 (de) Motorkühlsystem für eine waschmaschine
CN115581046A (zh) 一种磁吸式移动电源
KR100601433B1 (ko) 드럼 세탁기용 건조장치
CN105734898A (zh) 一种洗衣机
CN110306330B (zh) 衣物处理设备及其控制板冷却方法
CN107947470A (zh) 一种风冷一体式电机
EP1997950A1 (de) Wäschetrockner für den Haushalt
JP3830209B2 (ja) 可変速ポンプ装置
CN109343603B (zh) 工业机器人的电机温度自动补偿装置
CN218179064U (zh) 空调器用外挂机及空调器
KR100316609B1 (ko) 펌프용 모터의 냉각장치
EP2025800A1 (de) Elektrisches Haushaltsgerät
CN217904963U (zh) 一种医疗影像设备的散热降温装置
CN219843899U (zh) 一种多功能集成传感器
CN219535814U (zh) 一种高压电机组排潮装置
CN215976534U (zh) 一种热泵干衣装置和衣物处理设备
KR0182131B1 (ko) 열전소자를 이용한 공조기기의 열전소자 냉각장치 및 냉각방법

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

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

17P Request for examination filed

Effective date: 20191127

RBV Designated contracting states (corrected)

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

RIC1 Information provided on ipc code assigned before grant

Ipc: H02K 9/00 20060101ALI20200422BHEP

Ipc: D06F 39/00 20200101ALN20200422BHEP

Ipc: D06F 37/30 20200101AFI20200422BHEP

RIC1 Information provided on ipc code assigned before grant

Ipc: D06F 37/30 20200101AFI20200505BHEP

Ipc: H02K 9/00 20060101ALI20200505BHEP

Ipc: D06F 39/00 20200101ALN20200505BHEP

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: GRANT OF PATENT IS INTENDED

INTG Intention to grant announced

Effective date: 20200624

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: 20201105