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EP3006849A1 - Déshumidificateur - Google Patents

Déshumidificateur Download PDF

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Publication number
EP3006849A1
EP3006849A1 EP14808468.4A EP14808468A EP3006849A1 EP 3006849 A1 EP3006849 A1 EP 3006849A1 EP 14808468 A EP14808468 A EP 14808468A EP 3006849 A1 EP3006849 A1 EP 3006849A1
Authority
EP
European Patent Office
Prior art keywords
determination
temperature
air
block
dried
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
EP14808468.4A
Other languages
German (de)
English (en)
Other versions
EP3006849A4 (fr
EP3006849B1 (fr
Inventor
Noriyoshi Kabeta
Yoshiyuki Fujita
Hideo Shibata
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.)
Mitsubishi Electric Home Appliance Co Ltd
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric Home Appliance Co Ltd
Mitsubishi Electric Corp
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 Mitsubishi Electric Home Appliance Co Ltd, Mitsubishi Electric Corp filed Critical Mitsubishi Electric Home Appliance Co Ltd
Publication of EP3006849A1 publication Critical patent/EP3006849A1/fr
Publication of EP3006849A4 publication Critical patent/EP3006849A4/fr
Application granted granted Critical
Publication of EP3006849B1 publication Critical patent/EP3006849B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F3/00—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems
    • F24F3/12—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling
    • F24F3/14—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling by humidification; by dehumidification
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
    • F24F11/46—Improving electric energy efficiency or saving
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
    • F24F11/63—Electronic processing
    • F24F11/64—Electronic processing using pre-stored data
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/70—Control systems characterised by their outputs; Constructional details thereof
    • F24F11/72—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure
    • F24F11/74—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure for controlling air flow rate or air velocity
    • F24F11/76—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure for controlling air flow rate or air velocity by means responsive to temperature, e.g. bimetal springs
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/70—Control systems characterised by their outputs; Constructional details thereof
    • F24F11/72—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure
    • F24F11/79—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure for controlling the direction of the supplied air
    • 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
    • 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
    • D06F2103/28—Air properties
    • D06F2103/32—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
    • D06F2103/28—Air properties
    • D06F2103/36—Flow or velocity
    • 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
    • D06F2105/00—Systems or parameters controlled or affected by the control systems of washing machines, washer-dryers or laundry dryers
    • D06F2105/16—Air properties
    • D06F2105/24—Flow or velocity
    • 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
    • D06F2105/32—Air flow control means
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F3/00—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems
    • F24F3/12—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling
    • F24F3/14—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling by humidification; by dehumidification
    • F24F2003/144—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling by humidification; by dehumidification by dehumidification only
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F2110/00—Control inputs relating to air properties
    • F24F2110/10—Temperature
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F2110/00—Control inputs relating to air properties
    • F24F2110/20—Humidity

Definitions

  • the present invention relates to a dehumidifier that dehumidifies a room, and more particularly to a dehumidifier that dries laundry such as clothes to be dried in a room.
  • Patent Literature 1 Japanese Patent Laid-Open No. 7-139759 ( Figure 1 )
  • Patent Literature 1 does not perform appropriate operation control of air blowing or dehumidification according to situations around the dehumidifier, and thus has a problem in energy saving.
  • the present invention solves the above described problem, and has an object to provide a dehumidifier that performs appropriate dehumidification control according to use situations around the dehumidifier.
  • the dehumidifier includes: a casing; blowing means for taking indoor air in and blowing the indoor air out of the casing; dehumidification means for dehumidifying the indoor air taken into the casing; air temperature detection means for measuring a temperature of the indoor air; air direction variable means capable of varying an air direction of dry air obtained by dehumidifying the indoor air by the dehumidification means when the dry air is blown out of the casing; surface temperature detection means for detecting a surface temperature of a site located in a blowing direction of the dry air; and control means for controlling the each means, wherein the control means divides a region to which the air direction variable means can blow air into a plurality of blocks, causes the surface temperature detection means to detect the surface temperature of each block, calculates a temperature difference between the temperature of the indoor air and the surface temperature, and compares the temperature difference with a predetermined first determination temperature, thereby determining whether or not an object to be dried is located in the block.
  • the present invention can provides a dehumidifier capable of performing appropriate dehumidification control according to use situations around the dehumidifier.
  • Air direction variable means 1 capable of varying an air direction of the dry air Q is provided in the outlet 103.
  • the air direction variable means 1 includes a longitudinal louver 1a capable of varying a vertical air direction, and a lateral louver 1b capable of varying a horizontal air direction.
  • the air direction variable means 1 also includes an infrared sensor 6 (surface temperature detection means) for measuring a surface temperature of an object in a noncontact manner.
  • the dehumidification means 5 is located in an air trunk from the inlet 101 to the outlet 103, and removes and condenses moisture in air.
  • An example of a system used in the dehumidification means 5 includes a system in which a heat pump circuit is configured to condense moisture in air using an evaporator, or a desiccant system in which moisture in air removed by an absorbent is condensed using a heat exchanger.
  • the moisture removed from the indoor air P by the dehumidification means 5 is stored as condensed water C in the water storage tank 102.
  • the air from which the moisture is removed is the dry air Q.
  • the longitudinal louver 1a is configured to be capable of varying an air direction longitudinally (upward and downward).
  • the lateral louver 1b is configured to be capable of varying an air direction laterally (leftward and rightward).
  • the infrared sensor 6 is mounted to one surface of the lateral louver 1b substantially at a middle placed in the longitudinal louver 1 a.
  • a range of a surface temperature detected by the infrared sensor 6 is substantially the same as the blowing direction of the dry air Q variable by the air direction variable means 1.
  • the infrared sensor 6 can detect a surface temperature of a region within a range to which the air direction variable means 1 can blow air.
  • the infrared sensor 6 uses, for example, an effect of a thermoelectromotive force, and includes an infrared absorbing film 6a that receives heat (infrared) emitted from a surface of a predetermined region, and a thermistor 6b that detects a temperature of the infrared absorbing film 6a (see Figure 3 ).
  • the infrared sensor 6 is used to identify a position of an object to be dried R such as wet laundry and a position of a window as an object not to be dried that is not an object to be dried from a difference in surface temperature between detected objects.
  • a region detectable by the infrared sensor 6 is a whole scanning range 200.
  • the whole scanning range 200 is a planar range expanding in a lateral (horizontal) direction and a longitudinal (vertical) direction. In the description below, this range is referred to as a detectable region A.
  • the infrared sensor 6 is controlled to detect a surface temperature of each of a plurality of divided areas (each block) 201 in the horizontal direction and the vertical direction in the whole scanning range 200. Thus, a detailed temperature map can be made for a broad detectable region A.
  • control circuit 7 partitions the detectable region A of the infrared sensor 6 into blocks that are squares each having a predetermined size, determines a surface temperature of each block, and thus determines a position of the object to be dried R, a degree of dryness, or the like.
  • a filled part B in the detectable region A includes blocks at which a temperature lower than other parts is detected.
  • darker parts show lower temperatures.
  • the control circuit 7 determines that laundry is located in the part at a low surface temperature, and controls a direction of the air direction variable means 1 or a motion of the fan motor so that dehumidification air is efficiently applied to the position during a dehumidifying operation.
  • control circuit 7 stores results of position determination of the laundry and position determination of the window performed in the past for each block (divided area) as described later in detail.
  • the control circuit 7 controls an operation of the entire dehumidifier J by inputs from various sensors or switches and predetermined algorithms, and includes an input circuit 7a, an output circuit 7b, a CPU 7c, a storage portion 7d, and a timer portion 7e.
  • the timer portion 7e is operation time measuring means for measuring an operation time from a start of the operation.
  • the storage portion 7d stores the algorithms described above for controlling the components of the dehumidifier J.
  • the algorithms include an operation control program for determining operation control based on inputs from various sensors or switches, and an operation time determination program for determining a subsequent operation time based on detection signals from the temperature sensor 3 and the humidity sensor 4 and an output of the timer portion 7e.
  • the storage portion 7d further stores data on the position determination of the window and the laundry performed during the past dehumidifying operation as described later in detail.
  • control circuit 7 electric components such as a display portion 12 for indicating a state of the dehumidifier, the dehumidification device 5, the fan motor 2a, the longitudinally variable motor 1c, and the laterally variable motor 1d are connected through the output circuit 7b.
  • control circuit 7 drives the longitudinally variable motor 1c and the laterally variable motor 1d of the air direction variable means 1 so as to blow air toward a desired region in the room.
  • control circuit 7 starts an initial sampling operation in step S1, and then the process moves to step S2.
  • step S2 the control circuit 7 determines whether the number of times of determination that there is laundry in a sampling target block during past clothes drying operations is a prescribed number or more.
  • the storage portion 7d accumulates the number of times of determination that there is laundry in each block during the past clothes drying operations and stores the number as data, and the control circuit 7 determines whether or not the number is the prescribed number or more based on the data.
  • step S2 if the number of times of determination that there is laundry in the sampling target block during the past clothes drying operations is less than the prescribed number, the process moves to step S3 to set a determination temperature (first determination temperature) to a normal value T1, and moves to step S5.
  • the room temperature is a temperature of indoor air measured by the temperature sensor 3.
  • the measured value is a surface temperature of the target block measured by the infrared sensor 6.
  • ⁇ T is a difference obtained by subtracting the measured value from the room temperature.
  • the surface temperature is lower than the room temperature.
  • drying starts with time, moisture contained in the laundry starts evaporating, and heat of evaporation reduces the surface temperature of the laundry.
  • step S5 ⁇ T is compared with the determination temperature as a predetermined threshold (determination temperature ⁇ ⁇ T?) to determine whether or not there is laundry in the target block.
  • the determination temperature As a threshold for determination of presence or absence of laundry, it is unlikely to be determined that there is laundry. Specifically, only with a larger difference ⁇ T, it is determined that ⁇ T is larger than the determination temperature.
  • the difference ⁇ T between the room temperature and the temperature of the block is small, but a small determination temperature as the threshold allows determination that there is laundry in an early stage.
  • step S5 when the laundry is detected in the target block, the number of times of detection of the laundry in the block is additionally stored, and the process moves to step S6.
  • a control process from steps S7 to S14 is performed to detect a block in which the window is located to achieve a more efficient clothes drying operation.
  • step S8 with the clothes drying operation, a surface temperature of a site located in the block to which the air is blown is measured, and it is determined whether or not the temperature as the measured value is lower than a window determination temperature Tw (second determination temperature) (measured value ⁇ Tw?).
  • Tw window determination temperature
  • the determination activates the timer portion 7e to start measurement of an elapsed time Bx after the determination.
  • measurement is continued to accumulate the elapsed time.
  • step S9 if the number of times of determination that there is a window in the target block during the past clothes drying operations is less than a prescribed number, the process moves to step S10 to set the window determination time to a normal value B1, and the process moves to step S12.
  • step S12 the window determination times B1, B2 set in steps S10 and S 11 are compared with the elapsed time Bx from the window low temperature determination. Specifically, it is determined whether or not the surface temperature of the site located in the target block is the window determination temperature or less continuously for a predetermined time or more.
  • the surface temperature of the laundry increases as drying proceeds, while the surface temperature of the window does not increase as the clothes drying operation process.
  • the surface temperature is the window determination temperature or less (low temperature state) even if the window determination time B or more passes, it is determined that there is a window in the block.
  • step S14 determines whether or not the clothes drying operation is finished. If finished, the clothes drying operation is stopped, and if not finished, the process moves to step S7 to perform window determination for a block to which air is blown next.
  • step S 13 the window is detected in the target block, and the number of times of window detection in the block is additionally stored, and the process moves to step S 14.
  • step S 14 it is determined whether or not the clothes drying operation is finished. If finished, the clothes drying operation is stopped, and if not finished, the process moves to step S7 to perform window determination for a block to which air is blown next.
  • the clothes drying operation being performed is controlled so that dry air is not positively fed to the block for which it has been determined that there is a window as described above, but dry air is mainly fed to a block for which it has been determined that there is laundry.
  • the determination time B2 of the special value shorter than the determination time B1 of the normal value is used and compared with the elapsed time Bx.
  • Figures 10 and 11 assume a case where the laundry does not dry after 360 minutes, but the temperature is higher than an initial temperature.
  • the detectable region A constituted by blocks 1 to 25
  • blocks 9, 12, 13, 14, 17, 18 are positions of the laundry
  • blocks 2, 3, 22, 23, 24 are positions of the window.
  • Figure 10 shows an example of window determination during a normal operation.
  • the window determination during the normal operation is a window determination operation without the window determination in the past operation.
  • State 1 An example of a case is shown where the normal value T1 is used as the determination temperature through step S3 for all blocks. In this case, laundry (blocks 13, 14) that should be originally detected is not detected.
  • State 2 An example of a case is shown where the special value T2 is used as the determination temperature through step S4 for all blocks.
  • the window (blocks 2, 3, 22, 23, 24) is also detected and cannot be distinguished from the laundry.
  • State 3 An example of a case is shown where the results of determination of presence or absence of laundry performed during the past operations are used to store blocks (for example, blocks 9, 12, 13, 14, 17, 18) that are likely to be laundry, and for the stored blocks, the normal value T2 is used as the determination temperature through step S4, and for the other blocks, the normal value T1 is used as the determination temperature through step S3.
  • the laundry (blocks 9, 12, 13, 14, 17, 18) is detection with high accuracy.
  • Figure 11 (b) shows an example in which the special value is used as the window determination time of the blocks 2, 3, 22, 23, 24 for which the window determination has been performed a prescribed number of times or more in the past (step S11).
  • Figures 12 and 13 are flowcharts showing a series of operations, and Figure 12 shows a first half of the flowchart, and Figure 13 shows a latter half of the flowchart.
  • control circuit 7 starts an initial sampling operation in step S21, and then the process moves to step S22.
  • the initial sampling operation is an operation in which the infrared sensor 6 detects a surface temperature of each divided area (block) of the detectable region A, and determines whether or not there is laundry in a target block.
  • step S22 the control circuit 7 determines whether the number of times of determination that there is laundry in a sampling target block during past clothes drying operations is a prescribed number or more.
  • the storage portion 7d accumulates the number of times of determination that there is laundry in each block during the past clothes drying operations and stores the number as data, and the control circuit 7 determines whether or not the number is the prescribed number or more based on the data.
  • step S22 if the number of times of past determination that there is laundry is the prescribed number or more, the process moves to step S24 to set the determination temperature (first determination temperature) to a special value T2 smaller than T1, and moves to step S25 (T1 > T2).
  • the room temperature is a temperature of indoor air measured by the temperature sensor 3.
  • the measured value is a surface temperature of the target block measured by the infrared sensor 6.
  • ⁇ T is a difference obtained by subtracting the measured value from the room temperature.
  • the surface temperature is lower than the room temperature.
  • drying starts with time, moisture contained in the laundry starts evaporating, and heat of evaporation reduces the surface temperature of the laundry.
  • step S25 ⁇ T is compared with the determination temperature as a predetermined threshold (determination temperature ⁇ ⁇ T?) to determine whether or not there is laundry in the target block.
  • the determination temperature As a threshold for determination of presence or absence of laundry, it is unlikely to be determined that there is laundry. Specifically, only with a larger difference ⁇ T, it is determined that ⁇ T is larger than the determination temperature.
  • the determination temperature it is likely to be determined that there is laundry. Specifically, with a small determination temperature, it is determined that the difference ⁇ T, which is even not very large, is larger than the determination temperature.
  • the determination temperature is compared with the difference ⁇ T at a determination temperature T2 of a special value smaller than the determination temperature T1 of a normal value.
  • the difference ⁇ T between the room temperature and the temperature of the block is small, but a small determination temperature as the threshold allows determination that there is laundry in an early stage.
  • the determination of presence or absence of laundry may be performed skipping the block for which it has been determined that there is laundry. This can reduce the operation time.
  • step S28 When the laundry is located in the predetermined percentage or more of the blocks, the process moves to step S28, it is assumed that this clothes drying operation is performed in the same environment as that of the previous operation, and the process moves to step S30.
  • the environment herein refers to an environment where the dehumidifier J is used.
  • a case is assumed where clothes are arranged in a manner similar to that in the previous operation in substantially the same direction in the same room as in the previous operation.
  • Figures 14 and 15 are flowcharts showing a series of operations, and Figure 14 shows a first half of the flowchart, and Figure 15 shows a latter half of the flowchart.
  • the initial sampling operation is an operation in which the infrared sensor 6 detects a surface temperature of each divided area (block) of the detectable region A, and it is determined whether or not there is laundry in a target block.
  • the storage portion 7d accumulates the number of times of determination that there is laundry in each block during the past clothes drying operations and stores the number as data, and the control circuit 7 determines that the number is the prescribed number or more based on the data.
  • the room temperature is a temperature of indoor air measured by the temperature sensor 3.
  • the measured value is a surface temperature of a target block measured by the infrared sensor 6.
  • ⁇ T is a difference obtained by subtracting the measured value from the room temperature.
  • the determination temperature it is likely to be determined that there is laundry. Specifically, with a small determination temperature, it is determined that the difference ⁇ T, which is even not very large, is larger than the determination temperature.
  • the determination temperature is compared with the difference ⁇ T at a determination temperature T2 of a special value smaller than the determination temperature T1 of a normal value.
  • the difference ⁇ T between the room temperature and the temperature of the block is small, but a small determination temperature as the threshold allows determination that there is laundry in an early stage.
  • step S45 when the laundry is detected in the target block, the number of times of detection of the laundry in the block is additionally stored, and the process moves to step S46.
  • step S46 it is determined whether or not determination of presence or absence of laundry in all blocks is finished. If the determination of presence or absence of laundry is completed, the process moves to step S47. If the determination is not completed, the process moves to step S42 to perform determination of an undetermined block.
  • the determination of presence or absence of laundry may be performed skipping the block for which it has been determined that there is laundry. This can reduce the operation time.
  • Steps S41 to S46 constitute a control procedure for detecting a position of the laundry from the difference between the room temperature and the detected temperature of each block, but a portion at a surface temperature lower than the room temperature like the laundry, for example, a window may be included in a position determined to be laundry.
  • a control process from steps S47 to S63 is performed to detect a block in which the window is located to achieve a more efficient clothes drying operation.
  • Steps S47 to S63 are steps for comparing various environmental patterns (for example, pattern 1: lavatory, pattern 2: living room, pattern 3: bathroom, or the like) stored in the past clothes drying operations with an environment of this clothes drying operation to reduce time for window determination.
  • pattern 1 lavatory
  • pattern 2 living room
  • pattern 3 bathroom, or the like
  • the control means can detect the environmental patterns by the storage means storing arrangement of the blocks for which it has been determined that there is a window in the past operations.
  • Step S47 is a step for comparing an environmental pattern 1 stored in the past clothes drying operation with the environment of this clothes drying operation.
  • step S48 When the laundry is located in the predetermined percentage or more of the blocks, the process moves to step S48, it is assumed that this clothes drying operation is performed in the same environment as that of the environmental pattern 1, and the process moves to step S54.
  • step S49 When the laundry is located in less than the predetermined percentage of the blocks, the process moves to step S49.
  • Step S49 is a step for comparing an environmental pattern 2 stored in the past clothes drying operation with the environment of this clothes drying operation.
  • step S50 When the laundry is located in the predetermined percentage or more of the blocks, the process moves to step S50, it is assumed that this clothes drying operation is performed in the same environment as that of the environmental pattern 2, and the process moves to step S54.
  • step S51 When the laundry is located in less than the predetermined percentage of the blocks, the process moves to step S51.
  • Step S51 is a step for comparing an environmental pattern 3 stored in the past clothes drying operation with the environment of this clothes drying operation.
  • step S52 When the laundry is located in the predetermined percentage or more of the blocks, the process moves to step S52, it is assumed that this clothes drying operation is performed in the same environment as that of the environmental pattern 3, and the process moves to step S54.
  • step S53 When the laundry is located in less than the predetermined percentage of the blocks, the process moves to step S53.
  • step S53 it is assumed that the stored environmental pattern performed in the past does not match the environment of this clothes drying operation, and clothes drying is performed in a new environment, and the process moves to step S54.
  • step S54 the control circuit 7 starts the clothes drying operation based on the detection results from steps S41 to S46, and the process moves to step S55.
  • step S55 with the clothes drying operation, a surface temperature of a site located in the block to which the air is blown is measured, and it is determined whether or not a temperature as the measured value is lower than a window determination temperature Tw (measured value ⁇ Tw?).
  • step S56 when the measured value is lower than the window determination temperature Tw (window low temperature determination), the process moves to step S56.
  • the determination activates the timer portion 7e to start measurement of an elapsed time Bx after the determination.
  • measurement is continued to accumulate the elapsed time.
  • step S63 When the measured value of the surface temperature of the site located in the block to which the air is blown is higher than the window determination temperature Tw, the process moves to step S63, and it is determined whether or not the clothes drying operation is finished. If finished, the clothes drying operation is stopped, and if not finished, the process moves to step S54 to perform window determination for a block to which air is next blown.
  • step S55 when the surface temperature of the block is higher than the window determination temperature Tw, measurement of the elapsed time Bx is stopped to reset data on the elapsed time Bx.
  • step S56 based on steps S47 to S53, it is determined whether or not the situation where this clothes drying operation is performed is the same environment as in the past (previous) operation.
  • step S57 the window determination time is set to the normal value B1, and the process moves to step S61.
  • step S58 if the situation is the same environment as in the past operation, the process moves to step S58.
  • step S58 if the number of times of determination that there is a window in the target block during the past clothes drying operations is less than the prescribed number, the process moves to step S59 to set the window determination time to the normal value B1, and the process moves to step S61.
  • step S58 if the number of times of determination that there is a window in the target block during the past clothes drying operations is the prescribed number or more, the process moves to step S60 to set the window determination time to a special value B2 shorter than the normal value B1, and the process moves to step S61 (B1 > B2).
  • step S61 the window determination times B1, B2 set in steps S57, S59 and S60 are compared with the elapsed time Bx from the window low temperature determination. Specifically, it is determined whether or not the surface temperature of the site located in the target block is the window determination temperature or less continuously for a predetermined time or more.
  • the surface temperature of the laundry increases as drying proceeds, while the surface temperature of the window does not increase (does not change) as the clothes drying operation proceeds.
  • the surface temperature is the window determination temperature or less (low temperature state) even if the window determination time B or more passes, it is determined that there is a window in the block.
  • step S63 determines whether or not the clothes drying operation is finished. If finished, the clothes drying operation is stopped, and if not finished, the process moves to step S54 to perform window determination for a block to which air is blown next.
  • step S62 the window is detected in the target block, and the number of times of window detection in the block is additionally stored, and the process moves to step S63.
  • step S63 it is determined whether or not the clothes drying operation is finished. If finished, the clothes drying operation is stopped, and if not finished, the process moves to step S54 to perform window determination for a block to which air is blown next.
  • the clothes drying operation being performed is controlled so that dry air is not positively fed to the block for which it has been determined that there is a window as described above, but dry air is mainly fed to a block for which it has been determined that there is laundry.
  • a plurality of window position determinations performed during the past clothes drying operations are stored for comparison with the environment of this clothes drying operation, and this clothes drying operation is compared therewith, thereby further reducing the determination time.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • Mathematical Physics (AREA)
  • Fuzzy Systems (AREA)
  • Fluid Mechanics (AREA)
  • Textile Engineering (AREA)
  • Control Of Washing Machine And Dryer (AREA)
  • Drying Of Gases (AREA)
  • Air Conditioning Control Device (AREA)
  • Accessory Of Washing/Drying Machine, Commercial Washing/Drying Machine, Other Washing/Drying Machine (AREA)
  • Drying Of Solid Materials (AREA)
EP14808468.4A 2013-06-04 2014-05-27 Déshumidificateur Not-in-force EP3006849B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2013117732 2013-06-04
PCT/JP2014/064013 WO2014196416A1 (fr) 2013-06-04 2014-05-27 Déshumidificateur

Publications (3)

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EP3006849A1 true EP3006849A1 (fr) 2016-04-13
EP3006849A4 EP3006849A4 (fr) 2017-02-01
EP3006849B1 EP3006849B1 (fr) 2019-04-10

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EP (1) EP3006849B1 (fr)
JP (1) JP6037007B2 (fr)
CN (1) CN105308396B (fr)
TW (1) TWI564520B (fr)
WO (1) WO2014196416A1 (fr)

Cited By (1)

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DE102023130479A1 (de) * 2023-11-03 2025-05-08 Krüger Holding AG Vorrichtung und Verfahren zum Steuern eines Raumluftwäschetrockners, Raumluftwäschetrockner und server- oder cloudbasiertes Computersystem

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CN108691181B (zh) * 2017-04-11 2021-11-26 上海海尔洗涤电器有限公司 一种判断衣物干燥的方法及干衣设备
CN108930149B (zh) * 2017-05-27 2021-04-27 青岛海尔滚筒洗衣机有限公司 一种衣物护理机用检测衣物干燥度的方法
CN109423873B (zh) * 2017-08-23 2021-10-26 青岛海尔洗涤电器有限公司 一种干衣机的控制方法及干衣机
KR102050162B1 (ko) * 2018-06-05 2019-11-28 윤강식 이동식 세탁물 건조 장치
JP6839141B2 (ja) * 2018-08-09 2021-03-03 陳 俊 宇 湿衣類の検知方法及び検知装置
KR102136738B1 (ko) * 2019-12-05 2020-07-22 장성욱 세탁물 건조 장치
CN115012188B (zh) * 2022-05-25 2023-11-03 无锡小天鹅电器有限公司 衣物处理设备及其烘干控制方法、装置及存储介质

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JP6037007B2 (ja) 2016-11-30
EP3006849A4 (fr) 2017-02-01
CN105308396A (zh) 2016-02-03
EP3006849B1 (fr) 2019-04-10
WO2014196416A1 (fr) 2014-12-11
TWI564520B (zh) 2017-01-01
CN105308396B (zh) 2017-11-14
TW201522874A (zh) 2015-06-16
JPWO2014196416A1 (ja) 2017-02-23
HK1215728A1 (zh) 2016-09-09

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