EP3732321A1 - A household appliance comprising a drum - Google Patents

A household appliance comprising a drum

Info

Publication number
EP3732321A1
EP3732321A1 EP18812103.2A EP18812103A EP3732321A1 EP 3732321 A1 EP3732321 A1 EP 3732321A1 EP 18812103 A EP18812103 A EP 18812103A EP 3732321 A1 EP3732321 A1 EP 3732321A1
Authority
EP
European Patent Office
Prior art keywords
drum
household appliance
inductor
respect
internal volume
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Withdrawn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
EP18812103.2A
Other languages
German (de)
French (fr)
Inventor
Volkan CERKEZ
Eser DOGAN
Ilhan CALISKAN
Erdaner BEYEN
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.)
Arcelik AS
Original Assignee
Arcelik 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 Arcelik AS filed Critical Arcelik AS
Publication of EP3732321A1 publication Critical patent/EP3732321A1/en
Withdrawn legal-status Critical Current

Links

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
    • D06F37/02—Rotary receptacles, e.g. drums
    • 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
    • D06F37/26—Casings; Tubs
    • D06F37/267—Tubs specially adapted for mounting thereto components or devices not provided for in preceding subgroups

Definitions

  • the present invention relates to a household appliance comprising a drum, such as a washing machine and a dryer.
  • the laundry items are placed into a drum rotatable about an axis. While rotating, the drum rotates the laundry items, thereby enabling a smooth washing and/or drying of all of the laundry items therein.
  • Electrical applications which may be performed in the drums of washing machines and/or dryers have become more common with the advances in technology. For example, many applications such as illuminating the interior of a drum, measuring the temperature in a drum, detecting the colors of the laundry items in a drum, require electronic components and energy to operate these components. In the state of the art, this required energy is transmitted to a drum by using components such as a slipring.
  • the aim of the present invention is to realize a household appliance enabling energy transmission into the drum.
  • Another aim of the present invention is to realize a household appliance in which energy transmission into the drum is performed wirelessly.
  • the household appliance enabling energy transmission into its drum comprises in its most basic form,
  • the household appliance enabling energy transmission into its drum comprises at least one body having an enclosed shape with at least one internal volume. At least one drum is provided in the inner portion of the body, suitable for placing therein the laundry items desired to be washed and/or dried. In the preferred embodiment of the invention, the drum is shaped as a hollow cylinder. At least one permanent magnet fixed with respect to the body, is provided around the annular cross-section of the drum. At least one inductor is provided on the drum, rotatable together with the drum with respect to the body. While the inductor rotates together with the drum, the distance between the inductor and the permanent magnet changes. The magnetic flux on the inductor changes as its distance to the permanent magnet change.
  • the inductor generates electricity as the drum rotates. Since the inductor is fixed with respect to the drum, electricity generation does not cause any friction.
  • the components in the drum requiring electricity are supplied via a resistor provided between the ends of the inductor.
  • a plurality of permanent magnets are provided around the annular cross-section of the drum.
  • the permanent magnets are arranged at equal angles around a circle.
  • the ends of the inductor directly supply at least one load.
  • the load may be any electrical or electronic component such as, but not limited to, a light source, heat sensor, camera, color sensor and the like.
  • the outlet of the inductor is coupled to a rectifier.
  • the alternative current generated by the inductor is thus converted to direct current.
  • the electricity generated by the inductor is stored in at least one storage means.
  • Said storage means may be, but not limited to a battery, accumulator, or a capacitor.
  • electricity can be supplied into the drum even when the drum does not rotate.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Main Body Construction Of Washing Machines And Laundry Dryers (AREA)
  • Toys (AREA)

Abstract

The present invention relates to a household appliance in which energy transmission into the drum is performed wirelessly, comprising at least one permanent magnet provided around the annular cross-section of the drum and fixed with respect to the body, and at least one inductor rotatable together with the drum with respect to the body, capable of generating a potential difference according to the magnetic flux changing thereon.

Description

    A HOUSEHOLD APPLIANCE COMPRISING A DRUM
  • Technical Field
  • The present invention relates to a household appliance comprising a drum, such as a washing machine and a dryer.
  • Prior Art
  • In washing machines and dryers, the laundry items are placed into a drum rotatable about an axis. While rotating, the drum rotates the laundry items, thereby enabling a smooth washing and/or drying of all of the laundry items therein. Electrical applications which may be performed in the drums of washing machines and/or dryers have become more common with the advances in technology. For example, many applications such as illuminating the interior of a drum, measuring the temperature in a drum, detecting the colors of the laundry items in a drum, require electronic components and energy to operate these components. In the state of the art, this required energy is transmitted to a drum by using components such as a slipring. Since mechanical parts like the slipring are frictional, they may cause the transmitted energy to become parasitic, the drum to rotate loudly, and the related appliance to break down often due to abrasion on said mechanical part. Using a dynamo on a drum lead to losing high amounts of energy due to friction, consequently reducing the energy efficiency of the related household appliance.
  • State of the art United States patent document no. US2014355247 mentions a washing machine with an electromagnetic structure enabling transmitting energy into a drum.
  • None of the state of the art documents include a solution such as the one in the present invention.
  • Brief Description of the Invention
  • The aim of the present invention is to realize a household appliance enabling energy transmission into the drum.
  • Another aim of the present invention is to realize a household appliance in which energy transmission into the drum is performed wirelessly.
  • Detailed Description of the Invention
  • The household appliance enabling energy transmission into its drum, comprises in its most basic form,
    • at least one body having an enclosed shape with at least one internal volume,
    • at least one preferably cylindrical drum provided in the internal volume of the body, suitable for placing therein the laundry items desired to be washed or dried,
    • at least one permanent magnet provided in the internal volume of the body around the annular cross-section of the drum, fixed with respect to the body, and
    • at least one inductor provided on the drum, rotatable together with the drum with respect to the body, capable of generating a potential difference according to the magnetic flux changing thereon.
  • In its most basic form, the household appliance enabling energy transmission into its drum, comprises at least one body having an enclosed shape with at least one internal volume. At least one drum is provided in the inner portion of the body, suitable for placing therein the laundry items desired to be washed and/or dried. In the preferred embodiment of the invention, the drum is shaped as a hollow cylinder. At least one permanent magnet fixed with respect to the body, is provided around the annular cross-section of the drum. At least one inductor is provided on the drum, rotatable together with the drum with respect to the body. While the inductor rotates together with the drum, the distance between the inductor and the permanent magnet changes. The magnetic flux on the inductor changes as its distance to the permanent magnet change. As a result of this change in the magnetic flux, a potential difference is generated between the ends of the inductor. Thus, in the household appliance of the invention, the inductor generates electricity as the drum rotates. Since the inductor is fixed with respect to the drum, electricity generation does not cause any friction. In the preferred embodiment of the invention, the components in the drum requiring electricity are supplied via a resistor provided between the ends of the inductor.
  • In the preferred embodiment of the invention, a plurality of permanent magnets are provided around the annular cross-section of the drum. Preferably, the permanent magnets are arranged at equal angles around a circle.
  • In an embodiment of the invention, the ends of the inductor directly supply at least one load. The load may be any electrical or electronic component such as, but not limited to, a light source, heat sensor, camera, color sensor and the like.
  • In an embodiment of the invention, the outlet of the inductor is coupled to a rectifier. The alternative current generated by the inductor is thus converted to direct current.
  • In an embodiment of the invention, the electricity generated by the inductor is stored in at least one storage means. Said storage means may be, but not limited to a battery, accumulator, or a capacitor. Thus, electricity can be supplied into the drum even when the drum does not rotate.

Claims (4)

  1. A household appliance enabling energy transmission into its drum, comprising
    - at least one body having an enclosed shape with at least one internal volume,
    - at least one preferably cylindrical drum provided in the internal volume of the body, suitable for placing therein the laundry items desired to be washed or dried, characterized by
    - at least one permanent magnet provided in the internal volume of the body around the annular cross-section of the drum, fixed with respect to the body, and by
    - at least one inductor provided on the drum, rotatable with respect to the body together with the drum, capable of generating a potential difference according to the magnetic flux changing thereon.
  2. A household appliance according to claim 1, comprising a plurality of permanent magnets provided at equal angles around the annular cross-section of the drum.
  3. A household appliance according to claim 1, comprising a rectifier to which the outlet of the inductor is connected.
  4. A household appliance according to any one of the preceding claims, comprising at least one storage means in which the electricity generated by the inductor is stored
EP18812103.2A 2017-12-25 2018-11-26 A household appliance comprising a drum Withdrawn EP3732321A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
TR2017/21662A TR201721662A2 (en) 2017-12-25 2017-12-25 A HOME APPLIANCE WITH A DRUM
PCT/EP2018/082546 WO2019129449A1 (en) 2017-12-25 2018-11-26 A household appliance comprising a drum

Publications (1)

Publication Number Publication Date
EP3732321A1 true EP3732321A1 (en) 2020-11-04

Family

ID=64572326

Family Applications (1)

Application Number Title Priority Date Filing Date
EP18812103.2A Withdrawn EP3732321A1 (en) 2017-12-25 2018-11-26 A household appliance comprising a drum

Country Status (3)

Country Link
EP (1) EP3732321A1 (en)
TR (1) TR201721662A2 (en)
WO (1) WO2019129449A1 (en)

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005168994A (en) * 2003-12-15 2005-06-30 Toshiba Corp Washing machine
WO2011115384A2 (en) * 2010-03-15 2011-09-22 엘지전자 주식회사 Laundry machine and method for controlling same
EP2604740B1 (en) 2011-12-16 2015-12-16 Electrolux Home Products Corporation N.V. Laundry machine with lighting apparatus for drum lighting
CN103946437B (en) * 2012-04-24 2016-08-24 Lg电子株式会社 Clothes treatment device

Also Published As

Publication number Publication date
WO2019129449A1 (en) 2019-07-04
TR201721662A2 (en) 2019-07-22

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