EP3880879B1 - Sèche-linge équipé d'un capteur infrarouge - Google Patents
Sèche-linge équipé d'un capteur infrarouge Download PDFInfo
- Publication number
- EP3880879B1 EP3880879B1 EP19779886.1A EP19779886A EP3880879B1 EP 3880879 B1 EP3880879 B1 EP 3880879B1 EP 19779886 A EP19779886 A EP 19779886A EP 3880879 B1 EP3880879 B1 EP 3880879B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- laundry
- baffle
- temperature
- sensor
- infrared sensor
- 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.)
- Active
Links
- 238000009529 body temperature measurement Methods 0.000 claims description 24
- 238000001035 drying Methods 0.000 claims description 15
- 238000004891 communication Methods 0.000 claims description 6
- 230000003213 activating effect Effects 0.000 claims description 5
- 238000000034 method Methods 0.000 claims description 4
- 230000001681 protective effect Effects 0.000 claims description 3
- 239000012780 transparent material Substances 0.000 claims description 2
- 239000004744 fabric Substances 0.000 description 5
- 230000007423 decrease Effects 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 238000013021 overheating Methods 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
Images
Classifications
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- 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
- D06F58/02—Domestic laundry dryers having dryer drums rotating about a horizontal axis
- D06F58/04—Details
-
- 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
- D06F2103/00—Parameters monitored or detected for the control of domestic laundry washing machines, washer-dryers or laundry dryers
- D06F2103/02—Characteristics of laundry or load
-
- 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
- D06F2103/00—Parameters monitored or detected for the control of domestic laundry washing machines, washer-dryers or laundry dryers
- D06F2103/02—Characteristics of laundry or load
- D06F2103/08—Humidity
-
- 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
- D06F2103/00—Parameters monitored or detected for the control of domestic laundry washing machines, washer-dryers or laundry dryers
- D06F2103/02—Characteristics of laundry or load
- D06F2103/12—Temperature
-
- 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
- D06F2103/00—Parameters monitored or detected for the control of domestic laundry washing machines, washer-dryers or laundry dryers
- D06F2103/64—Radiation, e.g. microwaves
-
- 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
- D06F37/04—Rotary receptacles, e.g. drums adapted for rotation or oscillation about a horizontal or inclined axis
- D06F37/06—Ribs, lifters, or rubbing means forming part of the receptacle
-
- 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
- D06F58/30—Drying processes
-
- 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
- D06F58/32—Control of operations performed in domestic laundry dryers
- D06F58/34—Control of operations performed in domestic laundry dryers characterised by the purpose or target of the control
- D06F58/36—Control of operational steps, e.g. for optimisation or improvement of operational steps depending on the condition of the laundry
- D06F58/38—Control 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
Definitions
- the present invention relates to a laundry dryer wherein the drying status of the laundry is controlled by measuring the temperature thereof.
- the drying process is controlled by measuring conductivity during the drying process.
- the conductivity sensor is composed of two electrodes which are arranged on the front section of the drum. During the drying process, when the laundry in the drum contacts said electrodes, the conductivity of the fabric can be measured. The conductivity is higher when the fabric is wet. As the fabric dries and the moisture therein is reduced, the conductivity thereof decreases. During the drying process, the conductivity of only the fabric which contacts the electrodes can be measured. When a plurality of laundry items are in the drum, the possibility of the laundry contacting the conductivity sensor decreases.
- a temperature sensor is used for controlling the drying process.
- the temperature sensors used in the laundry dryers generally measure the temperature of the "processing air".
- the infrared array sensor used for measuring the temperature inevitably measures the temperature of the inner surfaces of the drum in addition to the laundry. Since the measurement contains the temperature of the drum, an estimated or approximate data can be obtained in relation to the temperature of the laundry, and the actional temperature of the laundry being dried cannot be measured, and the actual dryness degree cannot be detected.
- a dynamic tracing measuring and controlling platform is disclosed.
- the aim of the present invention is the realization of a laundry dryer wherein the temperature and hence dryness level of the laundry is accurately detected and the drying process is controlled.
- the laundry dryer realized in order to attain the aim of the present invention comprises a temperature measurement unit which is detachably mounted into a recess-shaped housing opened in the drum baffle.
- the temperature measurement unit comprises an infrared sensor therein which detects the temperature of the laundry by means of the infrared rays radiated from the laundry.
- the temperature measurement unit further comprises a microprocessor which processes the signals received from the infrared sensor to transmit the same to the main control unit, and a wireless communication means such as Wi-Fi, Bluetooth, etc.
- a load sensor which detects the contact of the laundry with the drum baffle is provided in the drum baffle.
- the main control unit measures the temperature by means of the infrared sensor.
- a proximity sensor which detects the proximity of the laundry to the drum baffle is provided in the drum baffle.
- the main control unit measures the temperature by means of the infrared sensor.
- the laundry dryer (1) comprises a body; a drum (2) wherein the laundry is loaded; at least one baffle (3) which is mounted onto the inner surface of the drum (2) and which provides the tumbling of the laundry; and a control unit (main control card) (4) which regulates the drying processes.
- the baffle (3) is produced by bending a thin material for example a sheet or injecting plastic with a thin wall thickness in order to reduce the weight and cost, and the baffle (3) mounted onto the inner surface of the drum (2) has a hollow volume.
- the laundry dryer (1) of the present invention comprises a temperature measurement unit (7) which is detachably mounted into a housing (5) extending into the hollow inner volume of the baffle (3), which has an infrared sensor (6) detecting the temperature of the laundry by means of the infrared rays radiated from the laundry, and which detects the temperature of the laundry getting in contact with the baffle (3) or getting close to the baffle (3) during the drying process.
- infrared sensor (6) The components of the infrared sensor (6), namely the “lens” focusing the infrared rays and the “thermopile” converting the detected radiation data to the voltage, are known in the state of the art, and the definition of “infrared sensor (6)" covers these components.
- the temperature measurement unit (7) further comprises a microprocessor (8) which processes the signals received from the infrared sensor (6) to transmit the same to the control unit (4), and a wireless communication (9) means such as Wi-Fi, Bluetooth, etc.
- the laundry dryer (1) comprises a protective cover (10) which is mounted onto a surface of the temperature measurement unit (7) getting in contact with the laundry, which covers the infrared sensor (6) in the temperature measurement unit (7) so as to prevent the laundry and the humid air from damaging the infrared sensor (6), which is produced from an infrared transparent material so as to enable the infrared rays radiated from the laundry to reach the "lens" of the infrared sensor (6).
- the laundry dryer (1) comprises a load sensor (11) such as load cell, impact sensor, strain gauge, touch switch, etc., which is disposed in the baffle (3) and which detects the force applied by the laundry onto the outer surface of the baffle (3) and/or the outer surface of the temperature measurement unit (7) when the laundry contacts the baffle (3).
- a load sensor (11) such as load cell, impact sensor, strain gauge, touch switch, etc.
- Such a sensor of this type which is exemplified above and which detects the force applied by the laundry when the laundry contacts the baffle (3) is shortly defined as the "load sensor (11)".
- the control unit (4) activates the temperature measurement unit (7) and measures the temperature by activating the infrared sensor (6).
- the control unit (4) deactivates the temperature measurement unit (7) and the infrared sensor (6) does not measure temperature.
- the laundry dryer (1) comprises a proximity sensor (not shown in figures) which is disposed in the baffle (3) and which detects the presence of the laundry in the vicinity of the baffle (3) when the laundry gets close (a few mm - a few cm) to the temperature measurement unit (7).
- a proximity sensor (not shown in figures) which is disposed in the baffle (3) and which detects the presence of the laundry in the vicinity of the baffle (3) when the laundry gets close (a few mm - a few cm) to the temperature measurement unit (7).
- the control unit (4) activates the temperature measurement unit (7) and measures the temperature by activating the infrared sensor (6).
- the control unit (4) deactivates the temperature measurement unit (7) and the infrared sensor (6) does not measure temperature.
- the infrared sensor (6) which can make contact-free temperature measurement, the microprocessor (8) and the wireless communication means (9) are provided in the temperature measurement unit (7) mounted into the housing (5) opened in the baffle (3).
- the load sensor (11) or the proximity sensor detects the laundry on or in the vicinity of the baffle (3), and the temperature is measured by activating the infrared sensor (6).
- the load on the load sensor (11) is removed or the laundry moves away from the field of view of the proximity sensor, and the infrared sensor (6) stops temperature measurement.
- the data received from the infrared sensor (6) is transmitted to the microprocessor (8), and the data processed here via measurements and algorithms is transmitted to the control unit (4) via the wireless communication means (9).
- the actional temperature of the laundry can be measured by means of the infrared sensor (6), and the control unit (4) regulates the drying process by following said temperature data.
- the control unit (4) regulates the drying process by following said temperature data.
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Control Of Washing Machine And Dryer (AREA)
Claims (3)
- - Un sèche-linge (1) comprenant un tambour (2) dans lequel le linge est chargé ; au moins un déflecteur (3) monté sur la surface intérieure du tambour (2) et qui assure le culbutage du linge ; et une unité de commande (4) qui régule les processus de séchage, une unité de mesure de la température (7) montée de manière amovible dans un boîtier (5) formé sur le déflecteur (3) et s'étendant dans le volume intérieur creux du déflecteur (3), qui comporte un capteur infrarouge (6) détectant la température du linge ; caractérisé par un capteur de charge (11) disposé dans le déflecteur (3) et configuré pour détecter le contact du linge avec le déflecteur (3), l'unité de commande (4) étant configurée pour mesurer la température en activant le capteur infrarouge (6) lorsque le capteur de charge (11) détecte le contact du linge avec le déflecteur (3) ;soit un capteur de proximité placé dans le déflecteur (3) et qui détecte la présence du linge à proximité du déflecteur (3), l'unité de commande (4) étant configurée pour mesurer la température en activant le capteur infrarouge (6) lorsque le capteur de proximité détecte la présence du linge à proximité du déflecteur (3).
- - Un sèche-linge (1) selon la déclaration 1, caractérisé par l'unité de mesure de la température (7) comprenant un microprocesseur (8) configuré pour traiter les signaux reçus du capteur infrarouge (6) et les transmettre à l'unité de commande (4), et un moyen de communication sans fil (9).
- - Un sèche-linge (1) selon la déclaration 1 ou 2, caractérisé par un couvercle de protection (10) qui est monté sur une surface de l'unité de mesure de la température (7), qui recouvre le capteur infrarouge (6) dans l'unité de mesure de la température (7), et qui est fabriqué à partir d'un matériau transparent aux infrarouges.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
TR201817040 | 2018-11-13 | ||
PCT/EP2019/076421 WO2020099017A1 (fr) | 2018-11-13 | 2019-09-30 | Sèche-linge équipé d'un capteur infrarouge |
Publications (2)
Publication Number | Publication Date |
---|---|
EP3880879A1 EP3880879A1 (fr) | 2021-09-22 |
EP3880879B1 true EP3880879B1 (fr) | 2024-02-07 |
Family
ID=68104653
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP19779886.1A Active EP3880879B1 (fr) | 2018-11-13 | 2019-09-30 | Sèche-linge équipé d'un capteur infrarouge |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP3880879B1 (fr) |
WO (1) | WO2020099017A1 (fr) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR20220032963A (ko) * | 2020-09-08 | 2022-03-15 | 삼성전자주식회사 | 건조기 |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20030034443A1 (en) * | 2001-01-12 | 2003-02-20 | Kouznetsov Andrian I. | Absolute humidity sensor to control drying equipment |
DE10242144A1 (de) * | 2002-09-04 | 2004-03-18 | E.G.O. Control Systems Gmbh & Co. Kg | Wäschetrockner mit Sensoreinrichtung |
DE102005055411A1 (de) * | 2005-11-21 | 2007-05-24 | Robert Bosch Gmbh | Trockner und Verfahren unter Verwendung des Trockners |
CN104562607B (zh) * | 2015-01-21 | 2016-09-28 | 东华大学 | 一种用于干衣机内织物烘干技术研究的动态反馈测控平台 |
DE102016213232A1 (de) * | 2016-07-20 | 2018-01-25 | BSH Hausgeräte GmbH | Haushaltsgerät mit verbesserter Steuerung und Verfahren zum Betrieb eines solchen Haushaltsgeräts |
CN108004733B (zh) | 2016-10-31 | 2020-04-17 | 众智光电科技股份有限公司 | 烘衣机 |
-
2019
- 2019-09-30 WO PCT/EP2019/076421 patent/WO2020099017A1/fr unknown
- 2019-09-30 EP EP19779886.1A patent/EP3880879B1/fr active Active
Also Published As
Publication number | Publication date |
---|---|
WO2020099017A1 (fr) | 2020-05-22 |
EP3880879A1 (fr) | 2021-09-22 |
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