WO2013057848A1 - Clothes dryer - Google Patents

Clothes dryer Download PDF

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Publication number
WO2013057848A1
WO2013057848A1 PCT/JP2012/001545 JP2012001545W WO2013057848A1 WO 2013057848 A1 WO2013057848 A1 WO 2013057848A1 JP 2012001545 W JP2012001545 W JP 2012001545W WO 2013057848 A1 WO2013057848 A1 WO 2013057848A1
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WO
WIPO (PCT)
Prior art keywords
resistance value
electrodes
pair
detection
electrode
Prior art date
Application number
PCT/JP2012/001545
Other languages
French (fr)
Japanese (ja)
Inventor
祐太 三浦
松田　眞一
橋本　和彦
小松　隆
Original Assignee
パナソニック株式会社
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Publication of WO2013057848A1 publication Critical patent/WO2013057848A1/en

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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
    • D06F34/00—Details of control systems for washing machines, washer-dryers or laundry dryers
    • D06F34/14—Arrangements for detecting or measuring specific parameters
    • D06F34/18—Condition of the laundry, e.g. nature or weight
    • 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
    • D06F2103/10—Humidity expressed as capacitance or resistance
    • 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
    • D06F2103/38—Time, e.g. duration
    • 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
    • D06F2105/62—Stopping or disabling machine operation
    • 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 clothes dryer for drying clothes and the like.
  • this type of clothes dryer includes a resistance detection unit that detects a resistance value of an electrode that is provided in contact with clothes in a rotating drum, and a temperature detection unit that detects the temperature of hot air during drying using a temperature sensor. Based on the above information, the operation time was set (for example, see Patent Document 1).
  • FIG. 6 is a block circuit diagram of a conventional clothes dryer described in Patent Document 1.
  • FIG. 7 is a diagram showing the change over time of the detection resistance value of the electrode of the conventional clothes dryer.
  • a conventional clothes dryer has a heater 51 having a positive temperature characteristic as a heat source on an inner peripheral plate having a hot air outlet provided on the front side of the main body. Hot air heated through the heater 51 by the rotation of the blower fan is introduced into the rotating drum from the hot air outlet, and the clothes are heated and dried.
  • Temperature sensors 52a and 52b are provided in the vicinity of the rotary drum and below and above the hot air outlet of the inner peripheral plate, and the temperature is detected by the temperature sensors 52a and 52b.
  • the resistance detector 53 detects the resistance value of the electrode 54.
  • the temperature detector 55 detects the temperature from the temperature sensors 52a and 52b.
  • the control unit 56 includes various electronic circuits including a microcomputer. The control unit 56 takes in signals from the resistance detection unit 53 and the temperature detection unit 55 and performs energization control on the heater 51 and the motor 57.
  • the clothes dryer finishes the operation at time t8 when the delay time T7 has elapsed from time t6 when the resistance value r of the electrode 54 is continuously greater than the set value b for a predetermined time T5. To do.
  • the time t6 detected by the resistance comparison unit 59 is delayed. Conversely, when the moisture to be dried before operation is low, time t6 is advanced. By comparing this time t6 with a plurality of set values by the electrode detection time comparison unit 58, it is possible to know the wetness of the object to be dried before operation.
  • the calculation unit 60 selects the delay time T7 according to the size of the to-be-dried object determined as described above and the wetness from preset values. For this reason, the conventional clothes dryer can set the delay time according to the capacity of the object to be dried and the degree of wetness, and can automatically stop the operation in the optimum operation time.
  • the clothes dryer of the present invention is provided on the inner peripheral plate so as to come into contact with the rotary drum provided rotatably in the main body, the inner peripheral plate provided on the front portion of the main body, and the clothes in the rotary drum.
  • the first pair of electrodes and the second pair of electrodes are formed in different sizes in the shape of the portion that comes into contact with the clothing, and are disposed at different positions on the inner peripheral plate. Based on the information from the first pair of electrodes and the second pair of electrodes, the degree of drying of the clothes in the rotating drum is determined, and the drying operation is terminated.
  • the clothes dryer can be automatically terminated at an appropriate timing.
  • FIG. 1 is a cross-sectional view of a main part of a clothes dryer according to Embodiment 1 of the present invention.
  • 2 is a cross-sectional view taken along line 2-2 of FIG.
  • FIG. 3 is a side view of a main part of the clothes dryer according to Embodiment 1 of the present invention.
  • FIG. 4 is a system schematic diagram of a main part of the clothes dryer according to Embodiment 1 of the present invention.
  • FIG. 5 is a diagram showing a change over time of the electrode detection resistance value of the clothes dryer in the first embodiment of the present invention.
  • FIG. 6 is a block circuit diagram of a conventional clothes dryer.
  • FIG. 7 is a diagram showing the change over time of the resistance value of an electrode of a conventional clothes dryer.
  • FIG. 1 is a cross-sectional view of main parts of a clothes dryer according to Embodiment 1 of the present invention.
  • 2 is a cross-sectional view taken along line 2-2 of FIG.
  • FIG. 3 is a side view of a main part of the clothes dryer according to Embodiment 1 of the present invention.
  • FIG. 4 is a schematic system diagram of a main part of the clothes dryer according to the first embodiment of the present invention.
  • the rotary drum 1 for putting a drying object such as clothes 31 and drying is rotatably provided in the main body 30 of the clothes dryer.
  • a motor 3 for driving the rotating drum 1 is provided, and the rotating drum 1 rotates via the rotating drum belt 4 by driving the motor 3.
  • the blower fan 6 rotates through the blower fan belt 5 by driving the motor 3. Drying air is introduced through the circulation air passage 7 into the rotary drum 1 constituting the drying chamber containing the clothes 31.
  • the inner peripheral plate 8 provided on the front surface side of the rotating drum 1 is attached to the front portion of the main body 30 and rotatably supports the front portion of the rotating drum 1.
  • a first pair of electrodes 9 and a second pair of electrodes 10 are provided on the rotating drum 1 side of the inner peripheral plate 8 so as to come into contact with the clothes 31 stirred in the rotating drum 1. .
  • the first pair of electrodes 9 and the second pair of electrodes 10 are disposed between the inner periphery 8 a and the outer periphery 8 b of the inner peripheral plate 8.
  • the first pair of electrodes 9 includes a pair of electrode portions 9a and 9b made of a metal conductive member and an insulating member (not shown) that electrically insulates between the pair of electrode portions 9a and 9b. ing.
  • the second pair of electrodes 10 is electrically connected between the pair of electrode portions 10a and 10b made of a metal conductive member and the pair of electrode portions 10a and 10b. It is comprised by the insulating member (not shown) to insulate.
  • the pair of electrode portions 9a and the electrode portions 9b are disposed opposite to each other at predetermined distances at positions where the distance from the rotating shaft 1a of the rotating drum 1 is different. Further, the pair of electrode portions 10a and 10b are disposed opposite to each other at a predetermined interval at positions where the distance from the rotating shaft 1a of the rotating drum 1 is different.
  • the first pair of electrodes 9 detects the resistance value of the garment 31 that is in contact between the electrode portion 9a and the electrode portion 9b.
  • the second pair of electrodes 10 detects the resistance value of the garment 31 that is in contact across the electrode portion 10a and the electrode portion 10b.
  • the first pair of electrodes 9 and the second pair of electrodes 10 are provided on the inner peripheral plate 8 at positions separated from each other in the rotation direction of the rotary drum 1 (arrow C direction).
  • One first pair of electrodes 9 is provided on the left side of a vertical plane D passing through the rotation shaft 1 a of the rotary drum 1 of the inner peripheral plate 8.
  • the other second pair of electrodes 10 is provided on the right side of the vertical plane D passing through the rotation shaft 1 a of the rotary drum 1 of the inner peripheral plate 8.
  • first pair of electrodes 9 and the second pair of electrodes 10 are arranged below or above the rotating shaft 1a at an angle ⁇ (for example, approximately 120 degrees) with respect to the rotating shaft 1a of the rotating drum 1. It is installed.
  • the positions of the first pair of electrodes 9 and the second pair of electrodes 10 provided on the inner peripheral plate 8 are different in the rotation direction of the rotary drum 1. Thereby, the frequency per unit time when the clothes 31 in the rotating drum 1 contact two pairs of electrodes is different from each other.
  • first pair of electrodes 9 and the second pair of electrodes 10 have different sizes so that the areas of the portions in contact with the clothing 31 are different.
  • the first pair of electrodes 9 is formed larger, and the second pair of electrodes 10 is formed smaller than the first pair of electrodes 9. Thereby, the frequency per unit time when the clothes 31 in the rotating drum 1 contact two pairs of electrodes is different from each other.
  • the first pair of electrodes 9 and the second pair of electrodes 10 are arranged so that the heights H projecting from the surface of the inner peripheral plate 8 toward the rotating drum 1 are different.
  • the height of the first pair of electrodes 9 having a large area in contact with the garment 31 is set higher than that of the second pair of electrodes 10 having a small area in contact with the garment 31.
  • the frequency per unit time when the clothing 31 in the rotating drum 1 contacts the two pairs of electrodes can be varied.
  • the contact frequency of the garment 31 with the first pair of electrodes 9 having a large area in contact with the garment 31 is increased, and conversely, the second pair of electrodes with a small area in contact with the garment 31.
  • the frequency of contact of the garment 31 with 10 can be further reduced.
  • the heat pump device 11 is connected to the compressor 12, the radiator 13, the throttle unit 14, and the heat absorber 15 through a pipe line 16 so that the refrigerant circulates.
  • the radiator 13 radiates the heat of the compressed refrigerant.
  • the throttle unit 14 includes a throttle valve, a capillary tube, and the like for reducing the pressure of the high-pressure refrigerant.
  • the refrigerant whose pressure has been reduced to a low pressure takes heat from the surroundings.
  • the refrigerant flows and circulates in the direction of arrow A in FIG. 1 to realize a heat pump cycle.
  • the control unit 17 controls the motor 3, the heat pump device 11, etc., and controls the drying operation.
  • the first pair of electrodes 9 and the second pair of electrodes 10 are provided on the rotary drum 1 side of the inner peripheral plate 8 so as to be in contact with the clothing 31 in the rotary drum 1.
  • the wet garment 31 is in contact with the first pair of electrodes 9 or the second pair of electrodes 10, there is a gap between the pair of electrode portions 9a and 9b or between the pair of electrode portions 10a and 10b. Conducts electrically.
  • a low potential signal (second potential signal), which is a low potential electrode detection signal, is output from the first resistance value detection unit 18 or the second resistance value detection unit 19 configured by a comparator.
  • first potential signal that is a high potential electrode detection signal is output from each of the first resistance value detection unit 18 and the second resistance value detection unit 19.
  • the electrode detection signals from the first resistance value detection unit 18 and the second resistance value detection unit 19 connected to the first pair of electrodes 9 and the second pair of electrodes 10 are sent to the calculation unit 20 of the control unit 17. Entered.
  • a signal calculated by the calculation unit 20 is input to the drum rotation control unit 21.
  • the control unit 17 includes a calculation unit 20 and a drum rotation control unit 21.
  • the control unit 17 turns on / off the transistors Q1, Q2, and Q3 connected to the plurality of first detection resistors R1, R2, and R3 based on the signal calculated by the calculation unit 20. Thereby, in order to detect the resistance value between the first pair of electrodes 9, a plurality of first detection resistors connected to the first resistance value detector 18 are switched.
  • control unit 17 turns on / off the transistors Q4, Q5, and Q6 connected to the plurality of first detection resistors R4, R5, and R6 based on the signal calculated by the calculation unit 20. Accordingly, the plurality of second detection resistors connected to the second resistance value detection unit 19 are switched in order to detect the resistance value between the second pair of electrodes 10.
  • the clothing 31 to be dried is opened and closed by putting the door 22 into the rotating drum 1 and the drying operation is started.
  • the motor 3 is driven, the rotating drum 1 and the blower fan 6 are rotated, and a flow of drying air (arrow B) is generated in the circulation air path 7.
  • the drying air takes moisture from the clothes 31 in the rotary drum 1 and becomes humid, and then is guided to the heat absorber 15 of the heat pump device 11 through the circulation air passage 7.
  • the drying air that has been deprived of heat by the low-temperature refrigerant in the heat absorber 15 is cooled and dehumidified to become dry low-temperature air and is carried to the radiator 13. Thereafter, the drying air is heated by the heat released from the refrigerant, which is heated by adding heat from the compressor 12 to the heat absorbed by the heat absorber 15, and circulates again from the outlet 23 into the rotary drum 1. Is done. By repeating the above, drying of the clothing 31 proceeds.
  • the resistance value between each pair of electrodes is compared with the detected resistance value.
  • the resistance value between the pair of electrodes is smaller than the detection resistance value, that is, when it is determined that the clothing in the rotating drum 1 is “wet”, the low potential signal is detected as the first resistance value as the electrode detection signal.
  • the high potential signal is the first resistance value as the electrode detection signal. It is output from each of the detection unit 18 and the second resistance value detection unit 19.
  • the calculation unit 20 is a unit time (for example, 10 seconds) of the high potential signal (the clothes in the rotating drum 1 are “dry”) input from the first resistance value detection unit 18 and the second resistance value detection unit 19. ) To calculate the electrode detection resistance value R.
  • the electrode detection resistance value R is an average resistance value per unit time between the pair of electrodes of the first pair of electrodes 9 and the second pair of electrodes 10.
  • the number of data per unit time of the electrode detection signal is the number of samples included in the electrode detection signal when the electrode detection signal is sampled at a constant time interval. For example, when the unit time is 10 seconds and the sampling time is 0.1 seconds, the total number of data per unit time is 100. When the number of data per unit time of the low potential signal indicating “wet state” is 40, the number of data per unit time of the high potential signal indicating “dry state” is 60.
  • the detection resistance value to be compared with the resistance value between the pair of electrodes of the first resistance value detection unit 18 and the second resistance value detection unit 19 is R0, the total number of data per unit time is N, and the first resistance value
  • the electrode detection resistance value R is defined as, for example, nR0 / N.
  • the detection resistance value R ⁇ b> 0 can be switched between a plurality of resistance values based on the calculation result of the calculation unit 20. Thereby, it becomes possible to select the optimum detection resistance value R0 according to the dry state of the clothing 31 at that time, and the detection accuracy of the electrode detection resistance value R can be increased.
  • the calculation unit 20 calculates the electrode detection resistance value R from the number of data per unit time of the high potential signal, and compares it with the electrode detection resistance value Rd serving as a preset dry threshold value.
  • the degree of dryness of the clothes can be detected. For example, assuming that the electrode detection resistance value Rd is 0.7R0, if the electrode detection resistance value R calculated by the calculation unit 20 is greater than 0.7R, it is determined that the clothes are dry, and the electrode detection resistance value R is 0. In the case of 7R or less, it is determined that the clothing is in a normal wet state.
  • the definition of the electrode detection resistance value R is not limited to the above, and any definition may be used as long as it corresponds to the number of data per unit time of the electrode detection signal (high potential signal or low potential signal). Further, the high potential signal and the low potential signal may be reversed. That is, the high potential signal may indicate a “wet state” and the low potential signal may indicate a “dry state”.
  • the tangled state of the clothes can also be detected. That is, if the determination of the dry state of the first pair of electrodes 9 and the second pair of electrodes 10 is the same, it can be determined that there is no entanglement, and the first pair of electrodes 9 and the second pair of electrodes 10 If the determination of the dry state is different, it can be determined that there is a tangled state. Thus, if the electrode detection resistance value R is used, it becomes possible to simultaneously detect the degree of dryness of clothes and the tangled state of clothes.
  • FIG. 5 is a diagram showing a change with time of the electrode detection resistance value of the clothes dryer in the first embodiment of the present invention.
  • the resistance value between the first pair of electrodes 9 and the resistance value between the second pair of electrodes 10 are detected resistance values. Smaller than.
  • a low potential signal is output from each of the first resistance value detection unit 18 and the second resistance value detection unit 19. That is, per unit time (for example, 10 seconds) of the high potential signal (the clothes in the rotating drum 1 are “dry”) output from the first resistance value detector 18 and the second resistance value detector 19.
  • the electrode detection resistance value 24 (first electrode detection resistance value) and the electrode detection resistance value 25 (second electrode detection resistance value) calculated from the number of data are both determined to be in a dry state. The value is smaller than the value Rd.
  • the resistance value between the first pair of electrodes 9 is larger than the detected resistance value, that is, the garment in the rotating drum 1 is Since it is determined that the state is “dry”, a high potential signal is output from the first resistance value detector 18.
  • the resistance value between the second pair of electrodes 10 is smaller than the detected resistance value, that is, it is determined that the clothing in the rotating drum 1 is in a “wet state”, the low potential signal detects the second resistance value.
  • the electrode detection resistance value 24 and the electrode detection resistance value 25 calculated from the number of data are larger than one of the electrode detection resistance values Rd determined to be in a dry state.
  • the resistance value between the first pair of electrodes 9 and the resistance value between the second pair of electrodes 10 are larger than the detected resistance value.
  • a high potential signal is output from each of the first resistance value detection unit 18 and the second resistance value detection unit 19. That is, per unit time (for example, 10 seconds) of the high potential signal (the clothes in the rotating drum 1 are “dry”) output from the first resistance value detector 18 and the second resistance value detector 19.
  • Both the electrode detection resistance value 24 and the electrode detection resistance value 25 calculated based on the number of data are larger than the electrode detection resistance value Rd determined to be in a dry state.
  • the clothes dryer of the present embodiment has the first pair of electrodes 9 and the second pair of electrodes 10 provided on the inner peripheral plate 8 so as to come into contact with clothes in the rotary drum 1. Based on the information, the degree of drying of the clothes in the rotary drum 1 is determined, and the drying operation is terminated. More specifically, a first resistance value detection unit 18 and a second resistance value detection unit 19 that detect resistance values between the first pair of electrodes 9 and between the second pair of electrodes 10, The resistance value detection unit and the second resistance value detection unit, and a drum rotation control unit 21 that controls the rotation of the rotary drum 1 by the output of the calculation unit 20 are provided.
  • the first pair of electrodes 9 and the second pair of electrodes 10 are formed at different positions on the inner peripheral plate while forming the shapes of the portions that come into contact with clothing in different sizes.
  • the calculation unit 20 calculates an electrode detection resistance value from the electrode detection signals output from the first resistance value detection unit and the second resistance value detection unit, and the clothes in the rotary drum 1 are dried by the electrode detection resistance value. The degree is determined and the drying operation is automatically terminated. Thereby, the presence or absence of the entanglement degree of the clothing in the rotating drum 1 can be detected, and the dry state of the clothing can be accurately detected.
  • the clothes dryer of the present invention is in contact with the rotating drum provided rotatably in the main body, the inner peripheral plate provided at the front part of the main body, and the clothes in the rotating drum.
  • a first pair of electrodes and a second pair of electrodes provided on the inner peripheral plate, and a drum rotation control unit that controls the rotation of the rotating drum.
  • the first pair of electrodes and the second pair of electrodes are formed in different sizes in the shape of the portion that comes into contact with the clothing, and are disposed at different positions on the inner peripheral plate. Based on the information from the first pair of electrodes and the second pair of electrodes, the degree of drying of the clothes in the rotating drum is determined, and the drying operation is terminated.
  • the clothes dryer can be automatically terminated at an appropriate timing.
  • the first pair of electrodes and the second pair of electrodes are arranged so as to protrude differently from the surface of the inner peripheral plate toward the rotating drum, and come into contact with the clothes. You may make the height of the electrode with a large area of a part higher than the electrode with a small area of the part which contacts clothing.
  • the shape of the portion that comes into contact with the clothing that is, if the area is large, it is easy to contact the clothing, and if it is small, it is difficult to contact.
  • the electrode which protrudes to the rotating drum side has a high height, the first pair of electrodes and the second pair of electrodes provided at separate positions are likely to come into contact with clothing and are difficult to come into contact with each other when the height is low. The difference in detection due to can be further clarified. As a result, the degree of tangling of the clothes in the rotating drum and the dry state can be detected with high accuracy.
  • a first resistance value detection unit In the clothes dryer of the present invention, a first resistance value detection unit, a second resistance value detection unit, a calculation unit connected to the first resistance value detection unit and the second resistance value detection unit, Is further provided.
  • the first resistance value detection unit is connected to the first pair of electrodes, compares the resistance value between the first pair of electrodes with the first detection resistance value, and outputs an electrode detection signal.
  • the second resistance value detection unit is connected to the second pair of electrodes, compares the resistance value between the second pair of electrodes with the second detection resistance value, and outputs an electrode detection signal.
  • the calculation unit calculates a first electrode detection resistance value based on the electrode detection signal output from the first resistance value detection unit, and detects a second electrode detection based on the electrode detection signal output from the second resistance value detection unit. Calculate the resistance value.
  • the calculation unit may determine the degree of dryness of the clothes in the rotating drum by calculating the first electrode detection resistance value and the second electrode detection resistance value.
  • the clothes dryer of the present invention at least one of the first electrode detection resistance value and the second electrode detection resistance value, or the difference between the first electrode detection resistance value and the second electrode detection resistance value.
  • the degree of dryness of the clothes in the rotary drum may be determined by calculating.
  • the calculation unit includes a plurality of first detection resistance values and second resistance value detection units connected to the first resistance value detection unit according to the rotation direction of the rotary drum. A plurality of connected second detection resistance values may be switched.
  • the resistance value between the plurality of pairs of electrodes during the drying operation is in an equilibrium state, so that it is possible to determine the detection of the end of drying and the detection of the tangling of clothes.
  • the calculation unit may detect the presence or absence of clothing tangling by comparing and calculating the first electrode detection resistance value and the second electrode detection resistance value and the elapsed time.
  • drying operation end time can be corrected according to the presence or absence of tangling of the clothing during the drying operation, variation in the drying rate of the clothing after the drying operation (finished) due to the tangling of the clothing is reduced. be able to.
  • the electrode detection signal becomes the first potential signal when the resistance value between the electrodes is larger than the detection resistance value, and the second potential when the resistance value between the electrodes is equal to or less than the detection resistance value.
  • the calculation unit may calculate the electrode detection resistance value from the number of data per unit time obtained by sampling the first potential signal or the second potential signal at predetermined time intervals.
  • the clothes dryer according to the present invention can accurately detect the degree of dryness of the clothes in the rotating drum during the drying operation. For this reason, since variation in the drying rate of clothes after drying can be reduced and drying can be performed efficiently, it is useful as a clothes dryer.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Control Of Washing Machine And Dryer (AREA)

Abstract

A clothes dryer of the present invention comprises: a first resistance value detection unit (18) and a second resistance value detection unit (19) for detecting the resistance values between a pair of first electrodes (9) and between a pair of second electrodes (10); a calculation unit (20) connected to the first resistance value detection unit (18) and the second resistance value detection unit (19); and a drum rotation control unit (21) for controlling the rotation of a rotating drum by the output of the calculation unit (20). The first electrodes (9) and the second electrodes (10) have the shapes of clothes-contacting portions formed in different sizes and are disposed apart from each other at different positions of an inner circumferential plate (8). The calculation unit calculates electrode detection resistance values from electrode detection signals output from the first resistance value detection unit (18) and the second resistance value detection unit (19), determines the degree of drying of clothes in the rotating drum from the electrode detection resistance values, and automatically terminates the drying operation.

Description

衣類乾燥機Clothes dryer
　本発明は、衣類等の乾燥をおこなう衣類乾燥機に関する。 The present invention relates to a clothes dryer for drying clothes and the like.
　近年、衣類乾燥機は省エネルギー化が要求されており、乾燥運転を自動的に終了するため、回転ドラム内の衣類の乾き度合いを検出する必要がある。 In recent years, clothes dryers are required to save energy, and since the drying operation is automatically terminated, it is necessary to detect the dryness of the clothes in the rotating drum.
　従来、この種の衣類乾燥機は、回転ドラム内の衣類に接触するように設けられた電極の抵抗値を検出する抵抗検出部と、温度センサにより乾燥中の温風温度を検出する温度検出部の情報とに基づいて、運転時間を設定していた（例えば、特許文献１参照）。 Conventionally, this type of clothes dryer includes a resistance detection unit that detects a resistance value of an electrode that is provided in contact with clothes in a rotating drum, and a temperature detection unit that detects the temperature of hot air during drying using a temperature sensor. Based on the above information, the operation time was set (for example, see Patent Document 1).
　図６は、特許文献１に記載された従来の衣類乾燥機のブロック回路図である。図７は、従来の衣類乾燥機の電極の検出抵抗値の時間変化を示す図である。図６において、従来の衣類乾燥機は、本体の正面側に設けた温風吹出口を有する内周板に熱源となる正の温度特性を有するヒータ５１を配設している。送風ファンの回転によりヒータ５１を通って加熱された温風が温風吹出口から回転ドラム内に導入され、衣類が加熱乾燥される。回転ドラムの近傍に位置し内周板の温風吹出口の下部と上部に温度センサ５２ａ、５２ｂが設けられ、温度センサ５２ａ、５２ｂにより温度が検出される。 FIG. 6 is a block circuit diagram of a conventional clothes dryer described in Patent Document 1. FIG. 7 is a diagram showing the change over time of the detection resistance value of the electrode of the conventional clothes dryer. In FIG. 6, a conventional clothes dryer has a heater 51 having a positive temperature characteristic as a heat source on an inner peripheral plate having a hot air outlet provided on the front side of the main body. Hot air heated through the heater 51 by the rotation of the blower fan is introduced into the rotating drum from the hot air outlet, and the clothes are heated and dried. Temperature sensors 52a and 52b are provided in the vicinity of the rotary drum and below and above the hot air outlet of the inner peripheral plate, and the temperature is detected by the temperature sensors 52a and 52b.
　抵抗検知部５３は、電極５４の抵抗値を検出する。温度検知部５５は、温度センサ５２ａ、５２ｂからの温度を検出する。制御部５６は、マイクロコンピュータを含む各種電子回路から構成されている。制御部５６は、抵抗検知部５３および温度検知部５５からの信号を取り込んでヒータ５１およびモータ５７への通電制御を行う。 The resistance detector 53 detects the resistance value of the electrode 54. The temperature detector 55 detects the temperature from the temperature sensors 52a and 52b. The control unit 56 includes various electronic circuits including a microcomputer. The control unit 56 takes in signals from the resistance detection unit 53 and the temperature detection unit 55 and performs energization control on the heater 51 and the motor 57.
　そして、図７に示すように、電極５４の抵抗値ｒが所定時間Ｔ５連続して設定値ｂよりも大きくなった時刻ｔ６より、遅延時間Ｔ７経過した時刻ｔ８において、衣類乾燥機は運転を終了する。 Then, as shown in FIG. 7, the clothes dryer finishes the operation at time t8 when the delay time T7 has elapsed from time t6 when the resistance value r of the electrode 54 is continuously greater than the set value b for a predetermined time T5. To do.
　運転前の被乾燥物が水分を多く含んでいるときは、抵抗比較部５９により検出される上記時刻ｔ６が遅くなる。逆に、運転前の被乾燥物が含んでいる水分が少ないときは、時刻ｔ６が早くなる。この時刻ｔ６を電極検知時間比較部５８によって複数の設定値と比較することにより、運転前の被乾燥物の湿り具合を知ることができる。 When the object to be dried before operation contains a lot of moisture, the time t6 detected by the resistance comparison unit 59 is delayed. Conversely, when the moisture to be dried before operation is low, time t6 is advanced. By comparing this time t6 with a plurality of set values by the electrode detection time comparison unit 58, it is possible to know the wetness of the object to be dried before operation.
　演算部６０は、以上のようにして判断した被乾燥物の容量の大小と、湿り具合に応じた遅延時間Ｔ７をあらかじめ設定された値から選択する。このため、従来の衣類乾燥機は、被乾燥物の容量、湿り度合いに応じて遅延時間が設定でき、最適な運転時間で自動的に運転を停止させることができる。 The calculation unit 60 selects the delay time T7 according to the size of the to-be-dried object determined as described above and the wetness from preset values. For this reason, the conventional clothes dryer can set the delay time according to the capacity of the object to be dried and the degree of wetness, and can automatically stop the operation in the optimum operation time.
　しかしながら、前述した従来の構成では、乾燥運転中に回転ドラム内の衣類の絡まりが生じた場合などに、衣類の乾き状態を正確に検出できず、最適な運転時間で運転を終了できないという問題があった。 However, with the conventional configuration described above, there is a problem that the dry state of the clothes cannot be accurately detected when the clothes in the rotating drum are entangled during the dry operation, and the operation cannot be completed in an optimal operation time. there were.
特開平５－２５３３９７号公報Japanese Patent Laid-Open No. 5-25397
　本発明の衣類乾燥機は、本体内に回転自在に設けられた回転ドラムと、本体の前部に設けられた内周板と、回転ドラム内の衣類に接触するように内周板に設けられた第１の一対の電極および第２の一対の電極と、回転ドラムの回転を制御するドラム回転制御部と、を備える。第１の一対の電極および第２の一対の電極は、衣類と接触する部分の形状を異なる大きさに形成するとともに、内周板の異なる位置に離して配設される。第１の一対の電極および第２の一対の電極からの情報に基づき、回転ドラム内の衣類の乾き度合いを判別し、乾燥運転を終了する。 The clothes dryer of the present invention is provided on the inner peripheral plate so as to come into contact with the rotary drum provided rotatably in the main body, the inner peripheral plate provided on the front portion of the main body, and the clothes in the rotary drum. The first pair of electrodes and the second pair of electrodes, and a drum rotation control unit that controls the rotation of the rotating drum. The first pair of electrodes and the second pair of electrodes are formed in different sizes in the shape of the portion that comes into contact with the clothing, and are disposed at different positions on the inner peripheral plate. Based on the information from the first pair of electrodes and the second pair of electrodes, the degree of drying of the clothes in the rotating drum is determined, and the drying operation is terminated.
　これにより、乾燥運転中において、回転ドラム内の衣類の絡まりが生じた場合にも、衣類の乾き状態を精度よく検出することができる。その結果、適切なタイミングで衣類乾燥機を自動終了することができる。 Thus, even when the clothes in the rotating drum are entangled during the drying operation, the dry state of the clothes can be detected with high accuracy. As a result, the clothes dryer can be automatically terminated at an appropriate timing.
図１は本発明の実施の形態１における衣類乾燥機の要部断面図である。FIG. 1 is a cross-sectional view of a main part of a clothes dryer according to Embodiment 1 of the present invention. 図２は図１の２－２線断面図である。2 is a cross-sectional view taken along line 2-2 of FIG. 図３は本発明の実施の形態１における衣類乾燥機の要部側面図である。FIG. 3 is a side view of a main part of the clothes dryer according to Embodiment 1 of the present invention. 図４は本発明の実施の形態１における衣類乾燥機の要部システム概略図である。FIG. 4 is a system schematic diagram of a main part of the clothes dryer according to Embodiment 1 of the present invention. 図５は本発明の実施の形態１における衣類乾燥機の電極検出抵抗値の時間変化を示す図である。FIG. 5 is a diagram showing a change over time of the electrode detection resistance value of the clothes dryer in the first embodiment of the present invention. 図６は従来の衣類乾燥機のブロック回路図である。FIG. 6 is a block circuit diagram of a conventional clothes dryer. 図７は従来の衣類乾燥機の電極の抵抗値の時間変化を示す図である。FIG. 7 is a diagram showing the change over time of the resistance value of an electrode of a conventional clothes dryer.
　以下、本発明の実施の形態について、図面を参照しながら説明する。なお、この実施の形態によって本発明が限定されるものではない。 Hereinafter, embodiments of the present invention will be described with reference to the drawings. Note that the present invention is not limited to the embodiments.
　（実施の形態１）
　図１は、本発明の実施の形態１における衣類乾燥機の要部断面図である。図２は、図１の２－２線断面図である。図３は、本発明の実施の形態１における衣類乾燥機の要部側面図である。図４は、本発明の実施の形態１における衣類乾燥機の要部システム概略図である。 (Embodiment 1)
FIG. 1 is a cross-sectional view of main parts of a clothes dryer according to Embodiment 1 of the present invention. 2 is a cross-sectional view taken along line 2-2 of FIG. FIG. 3 is a side view of a main part of the clothes dryer according to Embodiment 1 of the present invention. FIG. 4 is a schematic system diagram of a main part of the clothes dryer according to the first embodiment of the present invention.
　図１～図４において、衣類３１等の乾燥対象を入れて乾燥させる回転ドラム１は、衣類乾燥機の本体３０内に回転自在に設けられている。回転ドラム１を駆動するモータ３を設け、モータ３の駆動により回転ドラム用ベルト４を介して回転ドラム１が回転する。モータ３の駆動により送風ファン用ベルト５を介して送風ファン６が回転する。衣類３１を入れた乾燥室を構成する回転ドラム１内へ循環風路７を通して乾燥用空気が導入される。 1 to 4, the rotary drum 1 for putting a drying object such as clothes 31 and drying is rotatably provided in the main body 30 of the clothes dryer. A motor 3 for driving the rotating drum 1 is provided, and the rotating drum 1 rotates via the rotating drum belt 4 by driving the motor 3. The blower fan 6 rotates through the blower fan belt 5 by driving the motor 3. Drying air is introduced through the circulation air passage 7 into the rotary drum 1 constituting the drying chamber containing the clothes 31.
　回転ドラム１の前面側に設けた内周板８は、本体３０の前部に取り付けられており、回転ドラム１の前部を回転自在に支持している。乾燥運転中は回転ドラム１内で撹拌される衣類３１に接触するように内周板８の回転ドラム１側に、第１の一対の電極９および第２の一対の電極１０が設けられている。第１の一対の電極９および第２の一対の電極１０は、内周板８の内周８ａと外周８ｂの間に配設されている。 The inner peripheral plate 8 provided on the front surface side of the rotating drum 1 is attached to the front portion of the main body 30 and rotatably supports the front portion of the rotating drum 1. During the drying operation, a first pair of electrodes 9 and a second pair of electrodes 10 are provided on the rotating drum 1 side of the inner peripheral plate 8 so as to come into contact with the clothes 31 stirred in the rotating drum 1. . The first pair of electrodes 9 and the second pair of electrodes 10 are disposed between the inner periphery 8 a and the outer periphery 8 b of the inner peripheral plate 8.
　第１の一対の電極９は、金属製の導電部材からなる一対の電極部９ａ、９ｂと、この一対の電極部９ａ、９ｂ間を電気的に絶縁する絶縁部材（図示せず）により構成されている。また、第２の一対の電極１０は、第１の一対の電極９と同様に、金属製の導電部材からなる一対の電極部１０ａ、１０ｂと、一対の電極部１０ａ、１０ｂ間を電気的に絶縁する絶縁部材（図示せず）により構成されている。 The first pair of electrodes 9 includes a pair of electrode portions 9a and 9b made of a metal conductive member and an insulating member (not shown) that electrically insulates between the pair of electrode portions 9a and 9b. ing. Similarly to the first pair of electrodes 9, the second pair of electrodes 10 is electrically connected between the pair of electrode portions 10a and 10b made of a metal conductive member and the pair of electrode portions 10a and 10b. It is comprised by the insulating member (not shown) to insulate.
　一対の電極部９ａと電極部９ｂは、回転ドラム１の回転軸１ａからの距離が異なる位置に、所定の間隔をおいて近接して対向配置されている。また、一対の電極部１０ａと電極部１０ｂは、回転ドラム１の回転軸１ａからの距離が異なる位置に所定の間隔をおいて近接して対向配置されている。第１の一対の電極９は、電極部９ａと電極部９ｂ間に跨って接触した衣類３１の抵抗値を検出する。第２の一対の電極１０は、電極部１０ａと電極部１０ｂ間に跨って接触した衣類３１の抵抗値を検出する。 The pair of electrode portions 9a and the electrode portions 9b are disposed opposite to each other at predetermined distances at positions where the distance from the rotating shaft 1a of the rotating drum 1 is different. Further, the pair of electrode portions 10a and 10b are disposed opposite to each other at a predetermined interval at positions where the distance from the rotating shaft 1a of the rotating drum 1 is different. The first pair of electrodes 9 detects the resistance value of the garment 31 that is in contact between the electrode portion 9a and the electrode portion 9b. The second pair of electrodes 10 detects the resistance value of the garment 31 that is in contact across the electrode portion 10a and the electrode portion 10b.
　第１の一対の電極９および第２の一対の電極１０は、回転ドラム１の回転方向（矢印Ｃ方向）にずれた離れた位置で内周板８上に設けられている。一方の第１の一対の電極９は、内周板８の回転ドラム１の回転軸１ａを通る垂直平面Ｄに対する左方部に設けられている。他方の第２の一対の電極１０は、内周板８の回転ドラム１の回転軸１ａを通る垂直平面Ｄに対する右方部に設けられている。 The first pair of electrodes 9 and the second pair of electrodes 10 are provided on the inner peripheral plate 8 at positions separated from each other in the rotation direction of the rotary drum 1 (arrow C direction). One first pair of electrodes 9 is provided on the left side of a vertical plane D passing through the rotation shaft 1 a of the rotary drum 1 of the inner peripheral plate 8. The other second pair of electrodes 10 is provided on the right side of the vertical plane D passing through the rotation shaft 1 a of the rotary drum 1 of the inner peripheral plate 8.
　また、第１の一対の電極９および第２の一対の電極１０は、回転ドラム１の回転軸１ａに対して、角度θ（例えば、略１２０度）で、回転軸１ａより下方または上方に配設されている。内周板８上に設けられる第１の一対の電極９および第２の一対の電極１０の互いの位置が回転ドラム１の回転方向に異なる。これにより、回転ドラム１内の衣類３１が２つの一対の電極に接触する単位時間あたりの頻度が互いに異なる。 In addition, the first pair of electrodes 9 and the second pair of electrodes 10 are arranged below or above the rotating shaft 1a at an angle θ (for example, approximately 120 degrees) with respect to the rotating shaft 1a of the rotating drum 1. It is installed. The positions of the first pair of electrodes 9 and the second pair of electrodes 10 provided on the inner peripheral plate 8 are different in the rotation direction of the rotary drum 1. Thereby, the frequency per unit time when the clothes 31 in the rotating drum 1 contact two pairs of electrodes is different from each other.
　また、第１の一対の電極９および第２の一対の電極１０は、衣類３１と接触する部分の面積が異なるように、大きさの異なる形状である。第１の一対の電極９は大きく形成され、第２の一対の電極１０は第１の一対の電極９より小さく形成されている。これにより、回転ドラム１内の衣類３１が２つの一対の電極に接触する単位時間あたりの頻度が互いに異なる。 Also, the first pair of electrodes 9 and the second pair of electrodes 10 have different sizes so that the areas of the portions in contact with the clothing 31 are different. The first pair of electrodes 9 is formed larger, and the second pair of electrodes 10 is formed smaller than the first pair of electrodes 9. Thereby, the frequency per unit time when the clothes 31 in the rotating drum 1 contact two pairs of electrodes is different from each other.
　また、第１の一対の電極９および第２の一対の電極１０は、内周板８の表面から回転ドラム１側へ突出する高さＨが異なるように配設されている。衣類３１と接触する部分の面積が大きい第１の一対の電極９の高さを、衣類３１と接触する部分の面積が小さい第２の一対の電極１０より高くしている。これにより、回転ドラム１内の衣類３１が２つの一対の電極に接触する単位時間あたりの頻度を異ならせることができる。その結果、衣類３１と接触する部分の面積が大きい第１の一対の電極９への衣類３１の接触頻度をより多く、逆に、衣類３１と接触する部分の面積が小さい第２の一対の電極１０への衣類３１の接触頻度をより少なくすることができる。 Also, the first pair of electrodes 9 and the second pair of electrodes 10 are arranged so that the heights H projecting from the surface of the inner peripheral plate 8 toward the rotating drum 1 are different. The height of the first pair of electrodes 9 having a large area in contact with the garment 31 is set higher than that of the second pair of electrodes 10 having a small area in contact with the garment 31. Thereby, the frequency per unit time when the clothing 31 in the rotating drum 1 contacts the two pairs of electrodes can be varied. As a result, the contact frequency of the garment 31 with the first pair of electrodes 9 having a large area in contact with the garment 31 is increased, and conversely, the second pair of electrodes with a small area in contact with the garment 31. The frequency of contact of the garment 31 with 10 can be further reduced.
　ヒートポンプ装置１１は、圧縮機１２と、放熱器１３と、絞り部１４と、吸熱器１５とを冷媒が循環するように管路１６で連結している。放熱器１３は、圧縮された冷媒の熱を放熱する。絞り部１４は、高圧の冷媒の圧力を減圧するための絞り弁や毛細管等からなる。吸熱器１５は、減圧されて低圧となった冷媒が周囲から熱を奪う。冷媒は、図１の矢印Ａの方向に流れて循環し、ヒートポンプサイクルを実現する。制御部１７は、モータ３、ヒートポンプ装置１１等を制御し、乾燥運転を制御する。 The heat pump device 11 is connected to the compressor 12, the radiator 13, the throttle unit 14, and the heat absorber 15 through a pipe line 16 so that the refrigerant circulates. The radiator 13 radiates the heat of the compressed refrigerant. The throttle unit 14 includes a throttle valve, a capillary tube, and the like for reducing the pressure of the high-pressure refrigerant. In the heat absorber 15, the refrigerant whose pressure has been reduced to a low pressure takes heat from the surroundings. The refrigerant flows and circulates in the direction of arrow A in FIG. 1 to realize a heat pump cycle. The control unit 17 controls the motor 3, the heat pump device 11, etc., and controls the drying operation.
　図４において、第１の一対の電極９および第２の一対の電極１０は、回転ドラム１内の衣類３１に接触するように内周板８の回転ドラム１側に設けられている。湿り状態の衣類３１が第１の１対の電極９または第２の一対の電極１０に接触した場合、一対の電極部９ａと電極部９ｂ間、または一対の電極部１０ａと電極部１０ｂ間が電気的に導通する。このため、低電位の電極検出信号である低電位信号（第２電位信号）が比較器で構成された第１の抵抗値検出部１８または第２の抵抗値検出部１９から出力される。 4, the first pair of electrodes 9 and the second pair of electrodes 10 are provided on the rotary drum 1 side of the inner peripheral plate 8 so as to be in contact with the clothing 31 in the rotary drum 1. When the wet garment 31 is in contact with the first pair of electrodes 9 or the second pair of electrodes 10, there is a gap between the pair of electrode portions 9a and 9b or between the pair of electrode portions 10a and 10b. Conducts electrically. For this reason, a low potential signal (second potential signal), which is a low potential electrode detection signal, is output from the first resistance value detection unit 18 or the second resistance value detection unit 19 configured by a comparator.
　また、乾き状態の衣類３１が第１の一対の電極９または第２の１対の電極１０に接触した場合、一対の電極部９ａと電極部９ｂ間、および一対の電極部１０ａと電極部１０ｂ間が電気的に導通しない。このため、高電位の電極検出信号である高電位信号（第１電位信号）が第１の抵抗値検出部１８および第２の抵抗値検出部１９それぞれから出力される。 Further, when the clothes 31 in the dry state are in contact with the first pair of electrodes 9 or the second pair of electrodes 10, the pair of electrode portions 9a and the electrode portions 9b, and the pair of electrode portions 10a and 10b. There is no electrical connection between them. Therefore, a high potential signal (first potential signal) that is a high potential electrode detection signal is output from each of the first resistance value detection unit 18 and the second resistance value detection unit 19.
　第１の一対の電極９および第２の一対の電極１０に接続された第１の抵抗値検出部１８および第２の抵抗値検出部１９からの電極検出信号が制御部１７の演算部２０に入力される。演算部２０において演算処理された信号がドラム回転制御部２１に入力される。制御部１７は、演算部２０およびドラム回転制御部２１を備えている。 The electrode detection signals from the first resistance value detection unit 18 and the second resistance value detection unit 19 connected to the first pair of electrodes 9 and the second pair of electrodes 10 are sent to the calculation unit 20 of the control unit 17. Entered. A signal calculated by the calculation unit 20 is input to the drum rotation control unit 21. The control unit 17 includes a calculation unit 20 and a drum rotation control unit 21.
　制御部１７は、演算部２０において演算処理された信号に基づいて、複数の第１の検出抵抗Ｒ１、Ｒ２、Ｒ３に接続されたトランジスタＱ１、Ｑ２、Ｑ３をオン／オフする。これにより、第１の一対の電極９間の抵抗値を検出するために第１の抵抗値検出部１８に接続された複数の第１の検出抵抗が切り換えられる。 The control unit 17 turns on / off the transistors Q1, Q2, and Q3 connected to the plurality of first detection resistors R1, R2, and R3 based on the signal calculated by the calculation unit 20. Thereby, in order to detect the resistance value between the first pair of electrodes 9, a plurality of first detection resistors connected to the first resistance value detector 18 are switched.
　また、制御部１７は、演算部２０において演算処理された信号に基づいて、複数の第１の検出抵抗Ｒ４、Ｒ５、Ｒ６に接続されたトランジスタＱ４、Ｑ５、Ｑ６をオン／オフする。これにより、第２の一対の電極１０間の抵抗値を検出するために第２の抵抗値検出部１９に接続された複数の第２の検出抵抗が切り換えられる。 Further, the control unit 17 turns on / off the transistors Q4, Q5, and Q6 connected to the plurality of first detection resistors R4, R5, and R6 based on the signal calculated by the calculation unit 20. Accordingly, the plurality of second detection resistors connected to the second resistance value detection unit 19 are switched in order to detect the resistance value between the second pair of electrodes 10.
　以上のように構成された衣類乾燥機について、以下その動作、作用を説明する。まず、乾燥対象である衣類３１をドア２２を開閉して回転ドラム１内に投入し、乾燥運転を開始する。乾燥運転が開始されると、モータ３が駆動し、回転ドラム１および送風ファン６が回転して循環風路７に乾燥用空気の流れ（矢印Ｂ）が生じる。乾燥用空気は、回転ドラム１内の衣類３１から水分を奪って多湿となった後、循環風路７内を通ってヒートポンプ装置１１の吸熱器１５へ導かれる。 The operation and action of the clothes dryer configured as described above will be described below. First, the clothing 31 to be dried is opened and closed by putting the door 22 into the rotating drum 1 and the drying operation is started. When the drying operation is started, the motor 3 is driven, the rotating drum 1 and the blower fan 6 are rotated, and a flow of drying air (arrow B) is generated in the circulation air path 7. The drying air takes moisture from the clothes 31 in the rotary drum 1 and becomes humid, and then is guided to the heat absorber 15 of the heat pump device 11 through the circulation air passage 7.
　吸熱器１５で低温の冷媒に熱を奪われた乾燥用空気は、冷却除湿されて乾いた低温の空気となって放熱器１３へ運ばれる。その後、乾燥用空気は、吸熱器１５で吸熱された熱量に、圧縮機１２からの熱量が加わって高温となった冷媒からの放熱で加熱され、吹き出し口２３から再び回転ドラム１内へと循環される。以上の繰り返しで衣類３１の乾燥が進行する。 The drying air that has been deprived of heat by the low-temperature refrigerant in the heat absorber 15 is cooled and dehumidified to become dry low-temperature air and is carried to the radiator 13. Thereafter, the drying air is heated by the heat released from the refrigerant, which is heated by adding heat from the compressor 12 to the heat absorbed by the heat absorber 15, and circulates again from the outlet 23 into the rotary drum 1. Is done. By repeating the above, drying of the clothing 31 proceeds.
　回転ドラム１内で撹拌される衣類３１が第１の一対の電極９および第２の一対の電極１０に接触すると、それぞれの一対の電極間の抵抗値が検出抵抗値と比較される。一対の電極間の抵抗値が検出抵抗値より小さい場合、つまり、回転ドラム１内の衣類が「湿り状態」であると判断した場合は、電極検出信号として低電位信号が第１の抵抗値検出部１８および第２の抵抗値検出部１９それぞれから出力される。 When the garment 31 stirred in the rotary drum 1 contacts the first pair of electrodes 9 and the second pair of electrodes 10, the resistance value between each pair of electrodes is compared with the detected resistance value. When the resistance value between the pair of electrodes is smaller than the detection resistance value, that is, when it is determined that the clothing in the rotating drum 1 is “wet”, the low potential signal is detected as the first resistance value as the electrode detection signal. Output from each of the unit 18 and the second resistance value detection unit 19.
　一対の電極間の抵抗値が検出抵抗値より大きい場合、つまり、回転ドラム１内の衣類３１が「乾き状態」であると判断した場合は、電極検出信号として高電位信号が第１の抵抗値検出部１８および第２の抵抗値検出部１９それぞれから出力される。 When the resistance value between the pair of electrodes is larger than the detection resistance value, that is, when it is determined that the clothing 31 in the rotating drum 1 is in the “dry state”, the high potential signal is the first resistance value as the electrode detection signal. It is output from each of the detection unit 18 and the second resistance value detection unit 19.
　演算部２０は、第１の抵抗値検出部１８および第２の抵抗値検出部１９から入力される高電位信号（回転ドラム１内の衣類が「乾き状態」）の単位時間（例えば、１０秒間）あたりのデータ数を演算することにより、電極検出抵抗値Ｒを求める。電極検出抵抗値Ｒは、第１の一対の電極９および第２の一対の電極１０の一対の電極間の単位時間あたりの平均的な抵抗値である。 The calculation unit 20 is a unit time (for example, 10 seconds) of the high potential signal (the clothes in the rotating drum 1 are “dry”) input from the first resistance value detection unit 18 and the second resistance value detection unit 19. ) To calculate the electrode detection resistance value R. The electrode detection resistance value R is an average resistance value per unit time between the pair of electrodes of the first pair of electrodes 9 and the second pair of electrodes 10.
　ここで、電極検出信号の単位時間あたりのデータ数とは、電極検出信号を一定の時間間隔でサンプリングした場合の電極検出信号に含まれるサンプル数である。例えば、単位時間を１０秒とし、サンプリング時間を０．１秒とした場合、単位時間あたりの総データ数は１００となる。「湿り状態」を示す低電位信号の単位時間あたりのデータ数が４０の場合、「乾き状態」を示す高電位信号の単位時間あたりのデータ数は６０となる。そして、第１の抵抗値検出部１８および第２の抵抗値検出部１９の一対の電極間の抵抗値と比較する検出抵抗値をＲ０、単位時間あたりの総データ数をＮ、第１の抵抗値検出部１８または第２の抵抗値検出部１９から出力される高電位信号の単位時間あたりのデータ数をｎとしたときに、電極検出抵抗値Ｒを例えば、ｎＲ０／Ｎと定義する。このように、電極検出抵抗値Ｒを定義すると、電極検出抵抗値Ｒが大きくなるほど衣類の乾き度合いが大きいと判断できる。検出抵抗値Ｒ０は、図４で説明したように、演算部２０の演算結果に基づいて複数の抵抗値を切り換えることができる。これにより、その時点での衣類３１の乾き状態に応じて最適な検出抵抗値Ｒ０を選択することが可能となり、電極検出抵抗値Ｒの検出精度を上げることができる。 Here, the number of data per unit time of the electrode detection signal is the number of samples included in the electrode detection signal when the electrode detection signal is sampled at a constant time interval. For example, when the unit time is 10 seconds and the sampling time is 0.1 seconds, the total number of data per unit time is 100. When the number of data per unit time of the low potential signal indicating “wet state” is 40, the number of data per unit time of the high potential signal indicating “dry state” is 60. The detection resistance value to be compared with the resistance value between the pair of electrodes of the first resistance value detection unit 18 and the second resistance value detection unit 19 is R0, the total number of data per unit time is N, and the first resistance value When the number of data per unit time of the high potential signal output from the value detection unit 18 or the second resistance value detection unit 19 is n, the electrode detection resistance value R is defined as, for example, nR0 / N. Thus, when the electrode detection resistance value R is defined, it can be determined that the degree of dryness of the clothes increases as the electrode detection resistance value R increases. As described with reference to FIG. 4, the detection resistance value R <b> 0 can be switched between a plurality of resistance values based on the calculation result of the calculation unit 20. Thereby, it becomes possible to select the optimum detection resistance value R0 according to the dry state of the clothing 31 at that time, and the detection accuracy of the electrode detection resistance value R can be increased.
　このように、演算部２０により、高電位信号の単位時間あたりのデータ数から電極検出抵抗値Ｒを演算し、予め設定した乾き閾値となる電極検出抵抗値Ｒｄと比較することにより回転ドラム１内の衣類の乾き度合いを検出することができる。例えば、電極検出抵抗値Ｒｄを０．７Ｒ０とすると、演算部２０で演算された電極検出抵抗値Ｒが０．７Ｒより大きい場合、衣類は乾き状態と判断し、電極検出抵抗値Ｒが０．７Ｒ以下の場合は、衣類は湿り常態であると判断する。なお、電極検出抵抗値Ｒの定義は、上記に限定されず、電極検出信号（高電位信号または低電位信号）の単位時間あたりのデータ数と対応するものであればよい。また、高電位信号と低電位信号は逆であってもよい。すなわち、高電位信号が「湿り状態」を示し、低電位信号が「乾き状態」を示してもよい。 As described above, the calculation unit 20 calculates the electrode detection resistance value R from the number of data per unit time of the high potential signal, and compares it with the electrode detection resistance value Rd serving as a preset dry threshold value. The degree of dryness of the clothes can be detected. For example, assuming that the electrode detection resistance value Rd is 0.7R0, if the electrode detection resistance value R calculated by the calculation unit 20 is greater than 0.7R, it is determined that the clothes are dry, and the electrode detection resistance value R is 0. In the case of 7R or less, it is determined that the clothing is in a normal wet state. Note that the definition of the electrode detection resistance value R is not limited to the above, and any definition may be used as long as it corresponds to the number of data per unit time of the electrode detection signal (high potential signal or low potential signal). Further, the high potential signal and the low potential signal may be reversed. That is, the high potential signal may indicate a “wet state” and the low potential signal may indicate a “dry state”.
　また、この電極検出抵抗値Ｒを用いれば、衣類の絡まり状態も検出することができる。すなわち、第１の一対の電極９および第２の一対の電極１０の乾き状態の判断が同じであれば絡まり状態がないと判断でき、第１の一対の電極９および第２の一対の電極１０の乾き状態の判断が異なれば、絡まり状態があると判断できる。このように、電極検出抵抗値Ｒを用いれば衣類の乾き度合いと衣類の絡まり状態が同時に検出可能となる。 Moreover, if this electrode detection resistance value R is used, the tangled state of the clothes can also be detected. That is, if the determination of the dry state of the first pair of electrodes 9 and the second pair of electrodes 10 is the same, it can be determined that there is no entanglement, and the first pair of electrodes 9 and the second pair of electrodes 10 If the determination of the dry state is different, it can be determined that there is a tangled state. Thus, if the electrode detection resistance value R is used, it becomes possible to simultaneously detect the degree of dryness of clothes and the tangled state of clothes.
　図５は、本発明の実施の形態１における衣類乾燥機の電極検出抵抗値の時間変化を示す図である。回転ドラム１内の衣類３１が、湿り状態かつ衣類の絡まりがない場合（時刻ｔ１）、第１の一対の電極９間の抵抗値および第２の一対の電極１０間の抵抗値が検出抵抗値より小さい。この場合は、回転ドラム１内の衣類３１が「湿り状態」であると判断するので、低電位信号が第１の抵抗値検出部１８および第２の抵抗値検出部１９それぞれから出力される。すなわち、第１の抵抗値検出部１８および第２の抵抗値検出部１９から出力される高電位信号（回転ドラム１内の衣類が「乾き状態」）の単位時間（例えば、１０秒間）あたりのデータ数より演算される電極検出抵抗値２４（第１の電極検出抵抗値）および電極検出抵抗値２５（第２の電極検出抵抗値）は、どちらも乾き状態であると判定される電極検出抵抗値Ｒｄより小さい値となる。 FIG. 5 is a diagram showing a change with time of the electrode detection resistance value of the clothes dryer in the first embodiment of the present invention. When the garment 31 in the rotating drum 1 is in a wet state and no tangling of the garment (time t1), the resistance value between the first pair of electrodes 9 and the resistance value between the second pair of electrodes 10 are detected resistance values. Smaller than. In this case, since it is determined that the garment 31 in the rotary drum 1 is in a “wet state”, a low potential signal is output from each of the first resistance value detection unit 18 and the second resistance value detection unit 19. That is, per unit time (for example, 10 seconds) of the high potential signal (the clothes in the rotating drum 1 are “dry”) output from the first resistance value detector 18 and the second resistance value detector 19. The electrode detection resistance value 24 (first electrode detection resistance value) and the electrode detection resistance value 25 (second electrode detection resistance value) calculated from the number of data are both determined to be in a dry state. The value is smaller than the value Rd.
　回転ドラム１内の衣類３１が、湿り状態かつ衣類の絡まりがある場合（時刻ｔ２）、第１の一対の電極９間の抵抗値が検出抵抗値より大きいので、つまり回転ドラム１内の衣類が「乾き状態」であると判断するので、高電位信号が第１の抵抗値検出部１８から出力される。一方、第２の一対の電極１０間の抵抗値は検出抵抗値より小さいので、つまり回転ドラム１内の衣類が「湿り状態」であると判断するので、低電位信号が第２の抵抗値検出部１９から出力される。すなわち、第１の抵抗値検出部１８および第２の抵抗値検出部１９から出力される高電位信号（回転ドラム１内の衣類が「乾き状態」）の単位時間（例えば、１０秒間）あたりのデータ数より演算される電極検出抵抗値２４および電極検出抵抗値２５は、いずれか一方が乾き状態であると判定される電極検出抵抗値Ｒｄより大きい値となる。 When the garment 31 in the rotating drum 1 is wet and has tangled clothing (time t2), the resistance value between the first pair of electrodes 9 is larger than the detected resistance value, that is, the garment in the rotating drum 1 is Since it is determined that the state is “dry”, a high potential signal is output from the first resistance value detector 18. On the other hand, since the resistance value between the second pair of electrodes 10 is smaller than the detected resistance value, that is, it is determined that the clothing in the rotating drum 1 is in a “wet state”, the low potential signal detects the second resistance value. Output from the unit 19. That is, per unit time (for example, 10 seconds) of the high potential signal (the clothes in the rotating drum 1 are “dry”) output from the first resistance value detector 18 and the second resistance value detector 19. The electrode detection resistance value 24 and the electrode detection resistance value 25 calculated from the number of data are larger than one of the electrode detection resistance values Rd determined to be in a dry state.
　回転ドラム１内の衣類３１が乾き状態の場合（時刻ｔ３）、第１の一対の電極９間の抵抗値および第２の一対の電極１０間の抵抗値が検出抵抗値より大きい。この場合は、回転ドラム１内の衣類が「乾き状態」であると判断するので、高電位信号が第１の抵抗値検出部１８および第２の抵抗値検出部１９それぞれから出力される。すなわち、第１の抵抗値検出部１８および第２の抵抗値検出部１９から出力される高電位信号（回転ドラム１内の衣類が「乾き状態」）の単位時間（例えば、１０秒間）あたりのデータ数により演算される電極検出抵抗値２４および電極検出抵抗値２５は、どちらも乾き状態であると判定される電極検出抵抗値Ｒｄより大きい値となる。 When the clothes 31 in the rotating drum 1 is in a dry state (time t3), the resistance value between the first pair of electrodes 9 and the resistance value between the second pair of electrodes 10 are larger than the detected resistance value. In this case, since it is determined that the clothes in the rotating drum 1 are in the “dry state”, a high potential signal is output from each of the first resistance value detection unit 18 and the second resistance value detection unit 19. That is, per unit time (for example, 10 seconds) of the high potential signal (the clothes in the rotating drum 1 are “dry”) output from the first resistance value detector 18 and the second resistance value detector 19. Both the electrode detection resistance value 24 and the electrode detection resistance value 25 calculated based on the number of data are larger than the electrode detection resistance value Rd determined to be in a dry state.
　このように、本実施の形態の衣類乾燥機は、回転ドラム１内で衣類に接触するように内周板８に設けられた第１の一対の電極９および第２の一対の電極１０からの情報に基づき、回転ドラム１内の衣類の乾き度合いを判別し、乾燥運転を終了するようにした。より具体的には、第１の一対の電極９間および第２の一対の電極１０間の抵抗値を検出する第１の抵抗値検出部１８および第２の抵抗値検出部１９と、第１の抵抗値検出部および第２の抵抗値検出部に接続された演算部２０と、演算部２０の出力により回転ドラム１の回転を制御するドラム回転制御部２１とを備える。第１の一対の電極９および第２の一対の電極１０は、衣類と接触する部分の形状を異なる大きさに形成するとともに内周板の異なる位置に離して配設される。演算部２０は、第１の抵抗値検出部および第２の抵抗値検出部から出力される電極検出信号より、電極検出抵抗値を演算し、電極検出抵抗値により回転ドラム１内の衣類の乾き度合いを判別し、乾燥運転を自動的に終了する。これにより、回転ドラム１内の衣類の絡まり度合いの有無を検出し、衣類の乾き状態を精度よく検出することができる。 As described above, the clothes dryer of the present embodiment has the first pair of electrodes 9 and the second pair of electrodes 10 provided on the inner peripheral plate 8 so as to come into contact with clothes in the rotary drum 1. Based on the information, the degree of drying of the clothes in the rotary drum 1 is determined, and the drying operation is terminated. More specifically, a first resistance value detection unit 18 and a second resistance value detection unit 19 that detect resistance values between the first pair of electrodes 9 and between the second pair of electrodes 10, The resistance value detection unit and the second resistance value detection unit, and a drum rotation control unit 21 that controls the rotation of the rotary drum 1 by the output of the calculation unit 20 are provided. The first pair of electrodes 9 and the second pair of electrodes 10 are formed at different positions on the inner peripheral plate while forming the shapes of the portions that come into contact with clothing in different sizes. The calculation unit 20 calculates an electrode detection resistance value from the electrode detection signals output from the first resistance value detection unit and the second resistance value detection unit, and the clothes in the rotary drum 1 are dried by the electrode detection resistance value. The degree is determined and the drying operation is automatically terminated. Thereby, the presence or absence of the entanglement degree of the clothing in the rotating drum 1 can be detected, and the dry state of the clothing can be accurately detected.
　以上説明したように、本発明の衣類乾燥機は、本体内に回転自在に設けられた回転ドラムと、本体の前部に設けられた内周板と、回転ドラム内の衣類に接触するように内周板に設けられた第１の一対の電極および第２の一対の電極と、回転ドラムの回転を制御するドラム回転制御部と、を備える。第１の一対の電極および第２の一対の電極は、衣類と接触する部分の形状を異なる大きさに形成するとともに、内周板の異なる位置に離して配設される。第１の一対の電極および第２の一対の電極からの情報に基づき、回転ドラム内の衣類の乾き度合いを判別し、乾燥運転を終了する。 As described above, the clothes dryer of the present invention is in contact with the rotating drum provided rotatably in the main body, the inner peripheral plate provided at the front part of the main body, and the clothes in the rotating drum. A first pair of electrodes and a second pair of electrodes provided on the inner peripheral plate, and a drum rotation control unit that controls the rotation of the rotating drum. The first pair of electrodes and the second pair of electrodes are formed in different sizes in the shape of the portion that comes into contact with the clothing, and are disposed at different positions on the inner peripheral plate. Based on the information from the first pair of electrodes and the second pair of electrodes, the degree of drying of the clothes in the rotating drum is determined, and the drying operation is terminated.
　これにより、乾燥運転中において、回転ドラム内の衣類の絡まり度合いの有無を検出し、衣類の乾き状態を精度よく検出することができる。その結果、適切なタイミングで衣類乾燥機を自動終了することができる。 Thus, during the drying operation, it is possible to detect the presence or absence of tangling of the clothes in the rotating drum and accurately detect the dry state of the clothes. As a result, the clothes dryer can be automatically terminated at an appropriate timing.
　また本発明の衣類乾燥機では、第１の一対の電極および第２の一対の電極は、内周板の表面から回転ドラム側へ突出する高さが異なるように配設し、衣類と接触する部分の面積が大きい電極の高さを、衣類と接触する部分の面積が小さい電極より高くしてもよい。 Further, in the clothes dryer of the present invention, the first pair of electrodes and the second pair of electrodes are arranged so as to protrude differently from the surface of the inner peripheral plate toward the rotating drum, and come into contact with the clothes. You may make the height of the electrode with a large area of a part higher than the electrode with a small area of the part which contacts clothing.
　これにより、衣類と接触する部分の形状、すなわち、面積が大きいと衣類と接触し易く、小さいと接触し難い。また、回転ドラム側へ突出する電極の高さが高いと衣類と接触し易く、低いと接触し難いことから、離れた位置に設けられている第１の一対の電極と第２の一対の電極による検知の差を一層明確にすることができる。その結果、回転ドラム内の衣類の絡まり度合いと、乾き状態を精度よく検出することができる。 Therefore, the shape of the portion that comes into contact with the clothing, that is, if the area is large, it is easy to contact the clothing, and if it is small, it is difficult to contact. Moreover, since the electrode which protrudes to the rotating drum side has a high height, the first pair of electrodes and the second pair of electrodes provided at separate positions are likely to come into contact with clothing and are difficult to come into contact with each other when the height is low. The difference in detection due to can be further clarified. As a result, the degree of tangling of the clothes in the rotating drum and the dry state can be detected with high accuracy.
　また本発明の衣類乾燥機では、第１の抵抗値検出部と、第２の抵抗値検出部と、第１の抵抗値検出部および第２の抵抗値検出部に接続された演算部と、をさらに備える。第１の抵抗値検出部は、第１の一対の電極に接続され、第１の一対の電極間の抵抗値を第１の検出抵抗値と比較して電極検出信号を出力する。第２の抵抗値検出部は、第２の一対の電極に接続され、第２の一対の電極間の抵抗値を第２の検出抵抗値と比較して電極検出信号を出力する。演算部は、第１の抵抗値検出部から出力される電極検出信号により第１の電極検出抵抗値を演算し、第２の抵抗値検出部から出力される電極検出信号により第２の電極検出抵抗値を演算する。演算部は、第１の電極検出抵抗値および第２の電極検出抵抗値を演算することにより、回転ドラム内の衣類の乾き度合いを判別してもよい。 In the clothes dryer of the present invention, a first resistance value detection unit, a second resistance value detection unit, a calculation unit connected to the first resistance value detection unit and the second resistance value detection unit, Is further provided. The first resistance value detection unit is connected to the first pair of electrodes, compares the resistance value between the first pair of electrodes with the first detection resistance value, and outputs an electrode detection signal. The second resistance value detection unit is connected to the second pair of electrodes, compares the resistance value between the second pair of electrodes with the second detection resistance value, and outputs an electrode detection signal. The calculation unit calculates a first electrode detection resistance value based on the electrode detection signal output from the first resistance value detection unit, and detects a second electrode detection based on the electrode detection signal output from the second resistance value detection unit. Calculate the resistance value. The calculation unit may determine the degree of dryness of the clothes in the rotating drum by calculating the first electrode detection resistance value and the second electrode detection resistance value.
　これにより、回転ドラム内で衣類の絡まりが発生すると、第１の一対の電極間の抵抗値と第２の一対の電極間の抵抗値には不均衡が発生する。互いに内周板上の異なる位置に配置されている第１の一対の電極と第２の一対の電極にそれぞれ接続された第１の抵抗値検出部と第２の抵抗値検出部から出力され第１電位信号または第２電位信号を演算部により演算し、それぞれの電極検出抵抗値を求める。この電極検出抵抗値から第１の一対の電極間と第２の一対の電極間の抵抗値の不均衡を検出し、回転ドラム内での衣類の絡まり度合いを考慮しつつ衣類の乾燥状態を精度よく検出できる。 Thus, when tangling of clothing occurs in the rotating drum, an imbalance occurs between the resistance value between the first pair of electrodes and the resistance value between the second pair of electrodes. Output from the first resistance value detection unit and the second resistance value detection unit respectively connected to the first pair of electrodes and the second pair of electrodes arranged at different positions on the inner peripheral plate. The one potential signal or the second potential signal is calculated by the calculation unit, and each electrode detection resistance value is obtained. From this electrode detection resistance value, an imbalance in resistance value between the first pair of electrodes and the second pair of electrodes is detected, and the dry state of the clothes is accurately considered in consideration of the degree of tangling of the clothes in the rotating drum. Can be detected well.
　また本発明の衣類乾燥機では、第１の電極検出抵抗値および第２の電極検出抵抗値、または、第１の電極検出抵抗値および第２の電極検出抵抗値の差分のうち少なくともいずれか一方を演算することにより、回転ドラム内の衣類の乾き度合いを判別してもよい。 In the clothes dryer of the present invention, at least one of the first electrode detection resistance value and the second electrode detection resistance value, or the difference between the first electrode detection resistance value and the second electrode detection resistance value. The degree of dryness of the clothes in the rotary drum may be determined by calculating.
　これにより、回転ドラム内の衣類の絡まり度合いなどのに応じて、衣類の乾き度合いが的確に判断できる。 This makes it possible to accurately determine the degree of dryness of clothes according to the degree of tangling of clothes in the rotating drum.
　また本発明の衣類乾燥機では、演算部は、回転ドラムの回転方向に応じて、第１の抵抗値検出部に接続された複数の第１の検出抵抗値および第２の抵抗値検出部に接続された複数の第２の検出抵抗値を切り換えてもよい。 Further, in the clothes dryer of the present invention, the calculation unit includes a plurality of first detection resistance values and second resistance value detection units connected to the first resistance value detection unit according to the rotation direction of the rotary drum. A plurality of connected second detection resistance values may be switched.
　これにより、回転ドラム内の衣類の絡まりがない場合、乾燥運転中の複数の一対の電極間の抵抗値が均衡状態となるため、乾燥終了検知と衣類の絡まり検知を判別することができる。 Thereby, when there is no tangling of the clothes in the rotating drum, the resistance value between the plurality of pairs of electrodes during the drying operation is in an equilibrium state, so that it is possible to determine the detection of the end of drying and the detection of the tangling of clothes.
　また本発明の衣類乾燥機では、演算部は、第１の電極検出抵抗値および第２の電極検出抵抗値と経過時間を比較演算することにより、衣類の絡まりの有無を検出してもよい。 Further, in the clothes dryer of the present invention, the calculation unit may detect the presence or absence of clothing tangling by comparing and calculating the first electrode detection resistance value and the second electrode detection resistance value and the elapsed time.
　これにより、乾燥運転中の衣類の絡まりの有無に応じて、乾燥運転終了時間を補正することができるため、衣類の絡まりに起因する乾燥運転後（仕上がり）の衣類の乾燥率のばらつきを低減することができる。 Thereby, since the drying operation end time can be corrected according to the presence or absence of tangling of the clothing during the drying operation, variation in the drying rate of the clothing after the drying operation (finished) due to the tangling of the clothing is reduced. be able to.
　また本発明の衣類乾燥機では、電極検出信号は、電極間の抵抗値が検出抵抗値よりも大きい場合に第１電位信号となり、電極間の抵抗値が検出抵抗値以下の場合に第２電位信号となり、演算部は、第１電位信号または第２電位信号を所定時間間隔でサンプリングして得られる単位時間あたりのデータ数から電極検出抵抗値を演算してもよい。 In the clothes dryer of the present invention, the electrode detection signal becomes the first potential signal when the resistance value between the electrodes is larger than the detection resistance value, and the second potential when the resistance value between the electrodes is equal to or less than the detection resistance value. The calculation unit may calculate the electrode detection resistance value from the number of data per unit time obtained by sampling the first potential signal or the second potential signal at predetermined time intervals.
　これにより、電極間の抵抗値を精度良く検出することができるので、回転ドラム内の衣類の絡まり度合いと、乾き状態を精度よく検出することができる。 Thereby, since the resistance value between the electrodes can be detected with high accuracy, the degree of tangling of the clothes in the rotating drum and the dry state can be detected with high accuracy.
　以上のように、本発明にかかる衣類乾燥機は、乾燥運転中の回転ドラム内の衣類の乾き度合いを精度よく検出することができる。このため、乾燥後の衣類の乾燥率のばらつきを低減し、効率的に乾燥を行うことができるので、衣類乾燥機として有用である。 As described above, the clothes dryer according to the present invention can accurately detect the degree of dryness of the clothes in the rotating drum during the drying operation. For this reason, since variation in the drying rate of clothes after drying can be reduced and drying can be performed efficiently, it is useful as a clothes dryer.
　１　　回転ドラム
　１ａ　　回転軸
　３　　モータ
　８　　内周板
　９　　第１の一対の電極
　９ａ，９ｂ，１０ａ，１０ｂ　　電極部
　１０　　第２の一対の電極
　１８　　第１の抵抗値検出部
　１９　　第２の抵抗値検出部
　２０　　演算部
　２１　　ドラム回転制御部
　３０　　本体 DESCRIPTION OF SYMBOLS 1 Rotating drum 1a Rotating shaft 3 Motor 8 Inner peripheral board 9 1st pair of electrodes 9a, 9b, 10a, 10b Electrode part 10 2nd pair of electrodes 18 1st resistance value detection part 19 2nd resistance value detection 20 Calculating unit 21 Drum rotation control unit 30 Main body

Claims (7)

  1. 本体内に回転自在に設けられた回転ドラムと、
    前記本体の前部に設けられた内周板と、
    前記回転ドラム内の衣類に接触するように前記内周板に設けられた第１の一対の電極および第２の一対の電極と、
    前記回転ドラムの回転を制御するドラム回転制御部と、を備え、
    前記第１の一対の電極および前記第２の一対の電極は、衣類と接触する部分の形状を異なる大きさに形成するとともに、前記内周板の異なる位置に離して配設し、
    前記第１の一対の電極および前記第２の一対の電極からの情報に基づき、前記回転ドラム内の衣類の乾き度合いを判別し、乾燥運転を終了する衣類乾燥機。     A rotating drum rotatably provided in the body,
    An inner peripheral plate provided at the front of the main body;
    A first pair of electrodes and a second pair of electrodes provided on the inner peripheral plate so as to be in contact with clothing in the rotating drum;
    A drum rotation control unit for controlling the rotation of the rotating drum,
    The first pair of electrodes and the second pair of electrodes are formed in different sizes in the shape of the portion in contact with clothing, and are arranged at different positions on the inner peripheral plate,
    A clothes dryer that determines the degree of drying of clothes in the rotating drum based on information from the first pair of electrodes and the second pair of electrodes, and ends the drying operation.
  2. 前記第１の一対の電極および前記第２の一対の電極は、前記内周板の表面から前記回転ドラム側へ突出する高さが異なるように配設し、衣類と接触する部分の面積が大きい電極の高さを、衣類と接触する部分の面積が小さい電極より高くした請求項１に記載の衣類乾燥機。 The first pair of electrodes and the second pair of electrodes are arranged so that the height of the first pair of electrodes and the second pair of electrodes protruding from the surface of the inner peripheral plate toward the rotating drum is different, and the area of the portion that comes into contact with clothing is large. The clothes dryer according to claim 1, wherein the height of the electrode is higher than that of an electrode having a small area in contact with clothes.
  3. 前記第１の一対の電極に接続され、前記第１の一対の電極間の抵抗値を第１の検出抵抗値と比較して電極検出信号を出力する第１の抵抗値検出部と、
    前記第２の一対の電極に接続され、前記第２の一対の電極間の抵抗値を第２の検出抵抗値と比較して電極検出信号を出力する第２の抵抗値検出部と、
    前記第１の抵抗値検出部および前記第２の抵抗値検出部に接続された演算部と、
    をさらに備え、
    前記演算部は、前記第１の抵抗値検出部から出力される前記電極検出信号により第１の電極検出抵抗値を演算し、前記第２の抵抗値検出部から出力される前記電極検出信号により第２の電極検出抵抗値を演算し、
    前記第１の電極検出抵抗値および前記第２の電極検出抵抗値を演算することにより、前記回転ドラム内の衣類の乾き度合いを判別する請求項１に記載の衣類乾燥機。     A first resistance value detection unit connected to the first pair of electrodes and outputting an electrode detection signal by comparing a resistance value between the first pair of electrodes with a first detection resistance value;
    A second resistance value detection unit connected to the second pair of electrodes and outputting an electrode detection signal by comparing a resistance value between the second pair of electrodes with a second detection resistance value;
    An arithmetic unit connected to the first resistance value detection unit and the second resistance value detection unit;
    Further comprising
    The calculation unit calculates a first electrode detection resistance value based on the electrode detection signal output from the first resistance value detection unit, and uses the electrode detection signal output from the second resistance value detection unit. Calculate the second electrode detection resistance value,
    The clothes dryer according to claim 1, wherein the clothes dryer in the rotating drum is determined by calculating the first electrode detection resistance value and the second electrode detection resistance value.
  4. 前記第１の電極検出抵抗値および前記第２の電極検出抵抗値、または、前記第１の電極検出抵抗値および前記第２の電極検出抵抗値の差分のうち少なくともいずれか一方を演算することにより、前記回転ドラム内の衣類の乾き度合いを判別する請求項３に記載の衣類乾燥機。 By calculating at least one of the first electrode detection resistance value and the second electrode detection resistance value, or the difference between the first electrode detection resistance value and the second electrode detection resistance value The clothes dryer according to claim 3, wherein the degree of drying of the clothes in the rotating drum is determined.
  5. 前記演算部は、前記回転ドラムの回転方向に応じて、前記第１の抵抗値検出部に接続された複数の前記第１の検出抵抗値および前記第２の抵抗値検出部に接続された複数の前記第２の検出抵抗値を切り換える請求項４に記載の衣類乾燥機。 The arithmetic unit is connected to the plurality of first detection resistance values and the plurality of second resistance value detection units connected to the first resistance value detection unit according to the rotation direction of the rotary drum. The clothes dryer according to claim 4, wherein the second detection resistance value is switched.
  6. 前記演算部は、前記第１の電極検出抵抗値および前記第２の電極検出抵抗値と経過時間を比較演算することにより、衣類の絡まりの有無を検出する請求項４に記載の衣類乾燥機。 5. The clothes dryer according to claim 4, wherein the calculation unit detects the presence or absence of tangled clothes by comparing the first electrode detection resistance value and the second electrode detection resistance value with an elapsed time.
  7. 前記電極検出信号は、前記一対の電極間の抵抗値が前記検出抵抗値よりも大きい場合に第１電位信号となり、前記一対の電極間の抵抗値が前記検出抵抗値以下の場合に第２電位信号となり、
    前記演算部は、前記第１電位信号または前記第２電位信号を所定時間間隔でサンプリングして得られる単位時間あたりのデータ数から前記電極検出抵抗値を演算する請求項４に記載の衣類乾燥機。     The electrode detection signal becomes a first potential signal when a resistance value between the pair of electrodes is larger than the detection resistance value, and a second potential when the resistance value between the pair of electrodes is equal to or less than the detection resistance value. Signal,
    The clothes dryer according to claim 4, wherein the calculation unit calculates the electrode detection resistance value from the number of data per unit time obtained by sampling the first potential signal or the second potential signal at a predetermined time interval. .
PCT/JP2012/001545 2011-10-20 2012-03-07 Clothes dryer WO2013057848A1 (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108004737A (en) * 2017-12-01 2018-05-08 广西荔浦蓝天电器有限公司 A kind of dry suitcase of intelligence and its control method

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61280892A (en) * 1985-06-06 1986-12-11 株式会社東芝 Cloth judge apparatus of dryer
JPH05253397A (en) * 1992-03-16 1993-10-05 Matsushita Electric Ind Co Ltd Controller for dryer of clothes

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61280892A (en) * 1985-06-06 1986-12-11 株式会社東芝 Cloth judge apparatus of dryer
JPH05253397A (en) * 1992-03-16 1993-10-05 Matsushita Electric Ind Co Ltd Controller for dryer of clothes

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108004737A (en) * 2017-12-01 2018-05-08 广西荔浦蓝天电器有限公司 A kind of dry suitcase of intelligence and its control method
CN108004737B (en) * 2017-12-01 2024-04-26 中山市中孚科技有限公司 Intelligent clothes drying box and control method thereof

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