CA2446625A1 - Clothes dryer apparatus and method - Google Patents

Clothes dryer apparatus and method Download PDF

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Publication number
CA2446625A1
CA2446625A1 CA002446625A CA2446625A CA2446625A1 CA 2446625 A1 CA2446625 A1 CA 2446625A1 CA 002446625 A CA002446625 A CA 002446625A CA 2446625 A CA2446625 A CA 2446625A CA 2446625 A1 CA2446625 A1 CA 2446625A1
Authority
CA
Canada
Prior art keywords
sine wave
accordance
zero crossing
controller configured
input signal
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.)
Granted
Application number
CA002446625A
Other languages
French (fr)
Other versions
CA2446625C (en
Inventor
Zubair Hameed
Douglas Allen Riddle
Jeremy Michael Green
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.)
General Electric Co
Original Assignee
General Electric Co
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 General Electric Co filed Critical General Electric Co
Priority to CA2751011A priority Critical patent/CA2751011C/en
Publication of CA2446625A1 publication Critical patent/CA2446625A1/en
Application granted granted Critical
Publication of CA2446625C publication Critical patent/CA2446625C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • DTEXTILES; PAPER
    • D06TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06FLAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F58/00Domestic laundry dryers
    • D06F58/32Control of operations performed in domestic laundry dryers 
    • D06F58/34Control of operations performed in domestic laundry dryers  characterised by the purpose or target of the control
    • D06F58/36Control of operational steps, e.g. for optimisation or improvement of operational steps depending on the condition of the laundry
    • D06F58/38Control of operational steps, e.g. for optimisation or improvement of operational steps depending on the condition of the laundry of drying, e.g. to achieve the target humidity
    • DTEXTILES; PAPER
    • D06TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06FLAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F2103/00Parameters monitored or detected for the control of domestic laundry washing machines, washer-dryers or laundry dryers
    • D06F2103/02Characteristics of laundry or load
    • D06F2103/08Humidity
    • DTEXTILES; PAPER
    • D06TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06FLAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F2103/00Parameters monitored or detected for the control of domestic laundry washing machines, washer-dryers or laundry dryers
    • D06F2103/02Characteristics of laundry or load
    • D06F2103/08Humidity
    • D06F2103/10Humidity expressed as capacitance or resistance
    • DTEXTILES; PAPER
    • D06TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06FLAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F2103/00Parameters monitored or detected for the control of domestic laundry washing machines, washer-dryers or laundry dryers
    • D06F2103/28Air properties
    • D06F2103/32Temperature
    • DTEXTILES; PAPER
    • D06TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06FLAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F2103/00Parameters monitored or detected for the control of domestic laundry washing machines, washer-dryers or laundry dryers
    • D06F2103/28Air properties
    • D06F2103/34Humidity
    • DTEXTILES; PAPER
    • D06TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06FLAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F2105/00Systems or parameters controlled or affected by the control systems of washing machines, washer-dryers or laundry dryers
    • D06F2105/28Electric heating

Abstract

An electric clothes dryer heater system including a heater element and a controller operationally coupled to the heater is provided. The controller is configured to provide an AC sine wave to a heater element of an electric clothes dryer, stop providing at a zero crossing of the AC sine wave, monitor the AC sine wave for a subsequent zero crossing and reprovide the AC sine wave to the heater element at the subsequent zero crossing.

Claims (30)

1. A method of limiting current, said method comprising:
providing an AC sine wave to at least one heater element of an electric clothes dryer;
stopping said providing at a zero crossing of the AC sine wave;
monitoring the AC sine wave for a subsequent zero crossing; and reproviding the AC sine wave to the at least one heater element at the subsequent zero crossing.
2. A method in accordance with Claim 1 wherein said reproviding comprises reproviding the AC sine wave to the at least one heater element at a zero crossing immediately subsequent the zero crossing at which the AC sine wave was stopped.
3. A method in accordance with Claim 1 wherein said reproviding comprises reproviding the AC sine wave to the at least one theater element at a zero crossing at least two half cycles subsequent the zero crossing at which the AC
sine wave was stopped.
4. A method in accordance with Claim 1 further comprising controlling said stopping and said reproviding with a controller based on an input signal from a temperature sensor.
5. A method in accordance with Claim 1 further comprising controlling said stopping and said reproviding with a controller based on an input signal from a humidity sensor.
6. A method in accordance with Claim 1 further comprising controlling said stopping and said reproviding with a controller based on an input signal from a clothing moisture sensor.
7. A method in accordance with Claim 1 further comprising controlling said stopping and said reproviding with a controller based on an input signal from a temperature sensor and a humidity sensor.
8. A method in accordance with Claim 1 further comprising controlling said stopping and said reproviding with a controller based on an input signal from a temperature sensor and a clothing moisture sensor.
9. A method in accordance with Claim 1 further comprising controlling said stopping and said reproviding with a controller based on an input signal from a humidity sensor and a clothing moisture sensor.
10. An electric clothes dryer heater system comprising:
a heater element; and a controller operationally coupled to said heater, said controller configured to:
provide an AC sine wave to at least one heater element of an electric clothes dryer;
stop said providing at a zero crossing of the AC sine wave;
monitor the AC sine wave for a subsequent zero crossing; and reprovide the AC sine wave to the at least one heater element at the subsequent zero crossing.
11. A system in accordance with Claim 10 wherein to reprovide the AC sine wave to said at least one heater element, said controller configured to reprovide a zero crossing immediately subsequent the :zero crossing at which the AC
sine wave was stopped.
12. A system in accordance with Claim 10 A dryer in accordance with Claim 16 wherein to reprovide the AC sine wave to said at least one heater element, said controller configured to reprovide at a zero crossing at least two half cycles subsequent the zero crossing at which the AC sine wave was stopped.
13. A system in accordance with Claim 10 wherein said controller configured to stop and reprovide the AC sine wave based on an input signal from a temperature sensor.
14. A system in accordance with Claim 10 wherein said controller configured to stop and reprovide the AC sine wave based on an input signal from a humidity sensor.
15. A system in accordance with Claim 10 wherein said controller configured to stop and reprovide the AC sine wave based on an input signal from a clothing moisture sensor.
16. A dryer for tumble drying articles comprising:
a drum comprising a cavity configured to hold articles to be dried;
a motor drivingly coupled to said drum to rotate said drum;
a heater element in flow communication with said cavity;
a blower positioned to deliver heated air to said cavity; and a controller operationally coupled to said heater, said controller configured to:
provide an AC sine wave to at least one heater element of an electric clothes dryer;
stop said providing at a zero crossing of the AC sine wave;
monitor the AC sine wave for a subsequent zero crossing; and reprovide the AC sine wave to the at least one heater element at the subsequent zero crossing.
17. A dryer in accordance with Claim 16 wherein to reprovide the AC sine wave to said at least one heater element, said controller configured to reprovide a zero crossing immediately subsequent the zero crossing at which the AC
sine wave was stopped.
18. A dryer in accordance with Claim 16 wherein to reprovide the AC sine wave to said at least one heater element, said controller configured to reprovide at a zero crossing at least two half cycles subsequent the zero crossing at which the AC sine wave was stopped.
19. A dryer in accordance with Claim 16 wherein said controller configured to stop and reprovide the AC sine wave based on an input signal from a temperature sensor.
20. A dryer in accordance with Claim 16 wherein said controller configured to stop and reprovide the AC sine wave based on an input signal from a humidity sensor.
21. A dryer in accordance with Claim 16 wherein said controller configured to stop and reprovide the AC sine wave based on an input signal from a clothing moisture sensor.
22. A gas clothes dryer heater system comprising:
a linear gas valve;
a burner operationally coupled to said valve; and a controller operationally coupled to said valve, said controller configured to:
control said valve in an on state such that said burner produces a first heat output; and adjust said valve in the on state such that said burner produces a second heat output less than the first.
23. A system in accordance with Claim 22 wherein said controller configured to adjust said valve to gradually vary the heat output of said burner.
24. A system in accordance with Claim 22 wherein said controller configured to adjust said valve based on an input signal from a temperature sensor.
25. A system in accordance with Claim 22 wherein said controller configured to adjust said valve based on an input signal from a humidity sensor.
26. A system in accordance with Claim 22 wherein said controller configured to adjust said valve based on an input signal from a clothing moisture sensor.
27. A dryer for tumble drying articles comprising:
a drum comprising a cavity configured to hold articles to be dried;
a motor drivingly coupled to the drum to .rotate said drum;
a linear gas valve;
a burner operationally coupled to said valve and in flow communication with said cavity;
a blower positioned to deliver heated air to said cavity; and a controller operationally coupled to said linear gas valve, said controller configured to:

control said valve in an on state such that said burner produces a first heat output; and adjust said valve in the on state such that said burner produces a second heat output less than the first.
28. A dryer in accordance with Claim 27 wherein said controller configured to adjust said valve based on an input signal from a temperature sensor.
29. A dryer in accordance with Claim 27 wherein said controller configured to adjust said valve based on an input signal from a humidity sensor.
30. A dryer in accordance with Claim 27 wherein said controller configured to adjust said valve based on an input signal from a clothing moisture sensor.
CA2446625A 2003-06-27 2003-10-23 Clothes dryer apparatus and method Expired - Fee Related CA2446625C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CA2751011A CA2751011C (en) 2003-06-27 2003-10-23 Clothes dryer apparatus and method

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US10/608,178 2003-06-27
US10/608,178 US7005618B2 (en) 2003-06-27 2003-06-27 Clothes dryer apparatus and method

Related Child Applications (1)

Application Number Title Priority Date Filing Date
CA2751011A Division CA2751011C (en) 2003-06-27 2003-10-23 Clothes dryer apparatus and method

Publications (2)

Publication Number Publication Date
CA2446625A1 true CA2446625A1 (en) 2004-12-27
CA2446625C CA2446625C (en) 2011-11-29

Family

ID=33540502

Family Applications (2)

Application Number Title Priority Date Filing Date
CA2446625A Expired - Fee Related CA2446625C (en) 2003-06-27 2003-10-23 Clothes dryer apparatus and method
CA2751011A Expired - Fee Related CA2751011C (en) 2003-06-27 2003-10-23 Clothes dryer apparatus and method

Family Applications After (1)

Application Number Title Priority Date Filing Date
CA2751011A Expired - Fee Related CA2751011C (en) 2003-06-27 2003-10-23 Clothes dryer apparatus and method

Country Status (2)

Country Link
US (1) US7005618B2 (en)
CA (2) CA2446625C (en)

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ATE319874T1 (en) * 2003-12-02 2006-03-15 Dbk David & Baader Gmbh COVER FOR A CLOTHES DRYER AND METHOD FOR ASSEMBLY THEREOF
US7154072B2 (en) * 2004-12-03 2006-12-26 Tutco, Inc. Method of using open coil resistance heater in appliances with right and left hand installation capability
KR20070026921A (en) * 2005-08-27 2007-03-09 엘지전자 주식회사 Drying method of drying device
DE102005060040A1 (en) * 2005-12-15 2007-06-21 BSH Bosch und Siemens Hausgeräte GmbH Circuit arrangement for a Peltier module
KR101270860B1 (en) * 2006-05-26 2013-06-05 엘지전자 주식회사 Drying method of a laundry room machine
DE102006037239A1 (en) * 2006-08-09 2008-02-14 BSH Bosch und Siemens Hausgeräte GmbH Method and tumble dryer for controlling the drying of wet laundry
WO2008022111A2 (en) * 2006-08-15 2008-02-21 American Dryer Corporation Method of drying clothing with auto shut off and prorated billing
KR101314599B1 (en) * 2006-09-05 2013-10-04 엘지전자 주식회사 multiple laundry treating machine
US9249539B2 (en) 2006-09-25 2016-02-02 Ecolab Inc. Determination of dryness of textiles in a dryer
DE112008000374T5 (en) * 2007-02-08 2010-03-11 Lg Electronics Inc. Hot air generating device and dryer with this
KR100811487B1 (en) * 2007-02-13 2008-03-07 엘지전자 주식회사 Ductless dryer
CN101280510B (en) * 2007-04-05 2010-12-01 胡杰波 Safe clothes dryer having large spatial structure
US20110062145A1 (en) * 2007-09-10 2011-03-17 Amo Co., Ltd. Drying heater, heating unit for drying laundry using the same, drying control system and control method thereof
CA2629495A1 (en) * 2008-04-18 2009-10-18 Mabe Canada Inc. Apparatus for controlling a clothes dryer
ITTO20091035A1 (en) * 2009-12-23 2011-06-24 Indesit Co Spa METHOD FOR THE CONTROL OF A DRYING CYCLE IN A CLOTHING AND MACHINE DRYING MACHINE THAT MAKES THIS METHOD
US20120124858A1 (en) * 2010-11-23 2012-05-24 Tai-Her Yang Tumble type drying device having partial thermal flow returning structure
US9206543B2 (en) 2011-10-14 2015-12-08 Ecolab Usa Inc. Dryer monitoring
KR20160093879A (en) * 2015-01-30 2016-08-09 삼성전자주식회사 Clothing dryer and control method thereof
US10260194B2 (en) 2016-07-15 2019-04-16 Whirlpool Corporation Laundry treating appliance with a sensor
DE102018213108A1 (en) * 2018-08-06 2020-02-06 E.G.O. Elektro-Gerätebau GmbH Tumble dryer and method for drying laundry with a tumble dryer
US11519128B2 (en) 2020-02-11 2022-12-06 Haier Us Appliance Solutions, Inc. System and method for controlling static electricity within a dryer appliance

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Also Published As

Publication number Publication date
CA2446625C (en) 2011-11-29
US20040262293A1 (en) 2004-12-30
CA2751011A1 (en) 2004-12-27
US7005618B2 (en) 2006-02-28
CA2751011C (en) 2014-05-13

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Effective date: 20171023