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
  • D06F58/00—Domestic laundry dryers
  • D06F58/20—General details of domestic laundry dryers 
• • 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
  • D06F2105/00—Systems or parameters controlled or affected by the control systems of washing machines, washer-dryers or laundry dryers
• • 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
  • D06F34/00—Details of control systems for washing machines, washer-dryers or laundry dryers
  • D06F34/08—Control circuits or arrangements thereof
• • 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
  • D06F34/00—Details of control systems for washing machines, washer-dryers or laundry dryers
  • D06F34/14—Arrangements for detecting or measuring specific parameters
  • D06F34/26—Condition of the drying air, e.g. air humidity or 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
  • D06F58/00—Domestic laundry dryers
  • D06F58/02—Domestic laundry dryers having dryer drums rotating about a horizontal axis

Definitions

• the present invention relates to an apparatus capable of drying laundry, and particularly to a device for cleaning a detection device disposed in a condensing device of the apparatus.
• the present invention also relates to a method for controlling a laundry drying apparatus.
• a laundry drying apparatus generally has a laundry accommodating space and a drying air passage connected thereto.
• a fan for facilitating circular air flow in the laundry accommodating space and the drying air passage, a heating device for heating air, and a condensing device for condensing wet air from the laundry accommodating space are disposed in the passage.
• a sensor for detecting parameters, such as temperature or humidity, of circulated air is generally further disposed in the drying air passage, with a head of the sensor being exposed to drying air. Therefore, when the drying air passes through the position where the sensor is located, hair, fluff from laundry, and other sweeps carried by the drying air are easily adhered to the sensor. In the long run, the accumulation of the adhered matters will cause serious influence on accuracy of the detection result of the sensor, thereby affecting control of the laundry drying apparatus.
• the phenomenon that the detection accuracy of the sensor is affected due to the adhered matters easily occurs in various laundry drying apparatuses.
• a simple drying apparatus if a drying manner without water is adopted, that is, no condensate water is sprayed for condensation, there will be a large amount of adhered matters on the sensor.
• the sensor in order to prevent the condensate water from affecting the accuracy of the detection result, the sensor is generally disposed at a position where the sensor does not contact the condensate water, so the condensate water does not rinse the sensor.
• the senor is immerged in washing water during cloths washing and the adhered matters can be brought away by the washing water, but foam left after cloths washing may cover the sensor. Furthermore, when a user use the washing and drying machine not to perform a washing operation but only to perform a drying operation for a long time, the adhered matters on the sensor also cannot be washed away.
• An objective of the present invention is to overcome the disadvantages in the prior art, rinse adhered matters such as lint adhered to a detection device of a laundry drying apparatus in time, and improve accuracy of a control device.
• a laundry drying apparatus includes a laundry processing space and a drying air passage in communication with the laundry processing space, in which a detection device is mounted on the drying air passage and has a head extending into the drying air passage, and a cleaning device for rinsing the head of the detection device is mounted close to the detection device. Since the cleaning device is disposed for rinsing the detection device, adhered matters on the detection device can be rinsed away, thereby ensuring an accurate and reliable detection result.
• the cleaning device includes a rinsing device, the rinsing device includes a water outlet, and the water outlet faces the head of the detection device. Therefore, water can intensively rinse the detection device.
• the water outlet is disposed around the head of the detection device. Therefore, the rinsing device is able to fully rinse the detection device, to avoid residual adhered matters.
• the rinsing device includes a ring-shaped passage disposed around the head of the detection device, and the water outlet is disposed on a bottom of the ring-shaped passage.
• the rinsing device of this structure is able to enable the water to be distributed uniformly, thereby cleaning the detection device more effectively.
• the cleaning device includes a water introduction passage, the rinsing device is mounted on one end of the water introduction passage, a spraying device for rinsing the drying air passage is disposed on the drying air passage and has an inlet pipe, and the other end of the water introduction passage of the cleaning device is in communication with the inlet pipe of the spraying device.
• the laundry drying apparatus of this structure is able to effectively clean the detection device while cleaning the drying air passage, so as to ensure the cleaning of the drying air passage and the detection device.
• an upstream of the water introduction passage of the cleaning device and the inlet pipe of the spraying device is connected to an anti-backflow device, and is further connected to an inlet valve through the anti-backflow device. Therefore, the washing water is prevented from entering a public water source.
• the cleaning device includes a rinsing device, and the rinsing device and a wall of the drying air passage are integrally formed. Therefore, assembly is not required and no additional part needs to be provided, thereby reducing the manufacturing cost and simplifying the manufacturing procedure.
• the detection device is a temperature sensor or a humidity sensor.
• the laundry drying apparatus is a washing and drying machine.
• the present invention further provides a control method of the laundry drying apparatus.
• the laundry drying apparatus includes a control device, and the control device is able to control the laundry drying apparatus to execute a drying procedure, the drying procedure includes a detection device cleaning procedure of rinsing lint accumulated on the head of the detection device by the cleaning device.
• the cleaning device rinses the detection device, thereby ensuring an accuracy and reliable detection result.
• the detection device cleaning procedure is in a later stage of the whole drying procedure.
• the detection device cleaning procedure is in a final stage of the whole drying procedure.
• the detection device cleaning procedure is performed after the control device finishes calling a detection result of the detection device.
• the control device is able to control the laundry drying apparatus to execute a washing procedure.
• the cleaning device includes a water introduction passage
• the rinsing device is mounted on one end of the water introduction passage
• a spraying device for rinsing the drying air passage is disposed on the drying air passage and has an inlet pipe
• the other end of the water introduction passage of the cleaning device is in communication with the inlet pipe of the spraying device
• the drying procedure includes a drying air passage cleaning procedure of controlling the spraying device to spray water to the drying air passage
• the detection device cleaning procedure and the drying air passage cleaning procedure are performed at the same time.
• FIG. 1 is a schematic cross-sectional view of a washing and drying machine
• FIG. 2 is a cutaway view of a sensor and a rinsing device.
• a washing and drying machine 1 includes a box 2.
• a rotary drum 4 is rotatably mounted in the water barrel 3 or tub 3.
• the rotary drum 4 is disposed with through holes (not shown), so as to be in spatial communication with the water barrel 3, to allow exchange of liquid between within and without the drum 4.
• Laundry to be processed is placed into the rotary drum 4 through a door component 5 mounted on the box 2, and is washed and/or dried in the rotary drum 4.
• the water barrel 3 is connected to two ends of a drying air passage 6 respectively. Air for drying the laundry circularly flows in a space formed by the water barrel 3 and the drying air passage 6.
• the drying air passage 6 includes an air condensing passage 7 and an air heating passage 8.
• An air blowing device 9 is disposed between the air condensing passage 7 and the air heating passage 8 to facilitate air circulation.
• a detection device 10 for example, a temperature sensor, a humidity sensor, and/or another sensor, for detecting air parameter characteristics in the passage is further disposed in the drying air passage 6.
• a control device 22 controls the washing and drying machine 1 according to a detection result of the detection device 10.
• the detection device 10 is disposed near an inlet of the air condensing passage 7.
• the detection device 10 has a head 1 1 extending into the drying air passage 6.
• a cleaning device 12 for rinsing the head 1 1 of the detection device is mounted close to the detection device.
• the cleaning device 12 includes a water introduction passage 13 and a rinsing device 14 mounted on one end of the water introduction passage 13.
• a spraying device 15 for rinsing the air condensing passage 7 is disposed on the air condensing passage 7.
• the spraying device 15 has an inlet pipe 16.
• the other end of the water introduction passage 13 of the cleaning device 12 is in communication with the inlet pipe 16 of the spraying device 15.
• An upstream of the water introduction passage 13 of the cleaning device and the inlet pipe 16 of the spraying device is connected to an anti-backflow device 17, and is further connected to an inlet valve 18 through the anti-backflow device 17.
• the rinsing device 14 and a wall 23 of the drying air passage 6 are integrally formed, the rinsing device 14 has a ring-shaped passage 19 disposed around the head 1 1 of the detection device, and a water outlet 20 is disposed on a bottom of the ring-shaped passage 19.
• the water outlet 20 faces the head 1 1 of the detection device and has an oblique plane structure 21 , so that water flowing out of the water outlet 20 obliquely sprays towards the head 1 1 of the detection device to wash dirt and other adhered matters on the surface of the head 1 1 .
• the washing and drying machine 1 of the foregoing structure can perform a washing and/or drying procedure under control of the control device 22.
• a detection device cleaning procedure of rinsing lint accumulated on the head 1 1 of the detection device by the cleaning device 12 is performed.
• the drying procedure further includes a drying air passage cleaning procedure of controlling the spraying device 15 to spray water to the air condensing passage 7.
• a drying air passage cleaning procedure of controlling the spraying device 15 to spray water to the air condensing passage 7.
• the detection device cleaning procedure and the drying air passage cleaning procedure are performed at the same time.
• the cleaning device 12 and the spraying device 15 are separately connected to a water source, and the detection device cleaning procedure and the drying air passage cleaning procedure may be separately performed.
• the spraying device 15 may also be used to condense drying air.
• the spraying device 15 may be not disposed.
• a simple laundry drying apparatus may also have the foregoing features.
• the laundry processing space in the apparatus may be a space formed by a rotary drum and an outer drum or a laundry suspending or laying space.

Landscapes

• Engineering & Computer Science (AREA)
• Textile Engineering (AREA)
• Detail Structures Of Washing Machines And Dryers (AREA)
• Control Of Washing Machine And Dryer (AREA)
• Treatment Of Fiber Materials (AREA)

Priority Applications (3)

Applications Claiming Priority (2)

Publications (1)

Family

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Family Applications (1)

Country Status (4)

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Citations (3)

Family Cites Families (8)

• 2011
  • 2011-05-27 CN CN2011101486051A patent/CN102797140A/zh active Pending
• 2012
  • 2012-05-24 WO PCT/EP2012/059648 patent/WO2012163772A1/en active Application Filing
  • 2012-05-24 CN CN201280024648.1A patent/CN103748278B8/zh active Active
  • 2012-05-24 PL PL12723475T patent/PL2714981T3/pl unknown
  • 2012-05-24 EP EP12723475.5A patent/EP2714981B1/de active Active

Patent Citations (3)

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