JP2010240007A - Clothes dryer - Google Patents

Clothes dryer Download PDF

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JP2010240007A
JP2010240007A JP2009088921A JP2009088921A JP2010240007A JP 2010240007 A JP2010240007 A JP 2010240007A JP 2009088921 A JP2009088921 A JP 2009088921A JP 2009088921 A JP2009088921 A JP 2009088921A JP 2010240007 A JP2010240007 A JP 2010240007A
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clothes
time
dryness
clothing
value
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JP5012845B2 (en
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Tetsuo Kawai
哲夫 河合
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Panasonic Corp
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Panasonic Corp
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    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B40/00—Technologies aiming at improving the efficiency of home appliances, e.g. induction cooking or efficient technologies for refrigerators, freezers or dish washers

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Abstract

<P>PROBLEM TO BE SOLVED: To provide a clothes dryer whose operation is automatically terminated, capable of terminating the operation with an appropriate state of drying even if the volume of the clothes is small. <P>SOLUTION: When the number of times of detection by a dryness detecting means 12 that the resistance value of the clothes is smaller than a prescribed value within a prescribed period of time T9 after the start of operation is zero, the rotational frequency of a motor 2 is changed. Further, when the number of times of detection by the dryness detecting means 12 that the resistance value of the clothes is smaller than the prescribed value within a prescribed period of time T10 is zero, input to a heater 5 is stopped, but when the number of times of detection is not zero, the operation is continued. Accordingly, the operation can be terminated with appropriate dryness of the clothes even if the volume of clothes is small. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

本発明は熱風を回転ドラム内に供給して衣類を乾燥し、自動的に運転を終了する衣類乾燥機に関するものである。   The present invention relates to a clothes dryer that supplies hot air into a rotating drum to dry clothes and automatically ends the operation.

従来、衣類乾燥機においては、乾燥度検出手段により検出した情報に基づいて自動的に運転を終了するように構成していた（例えば、特許文献１参照）。   Conventionally, clothes dryers are configured to automatically end operation based on information detected by the dryness detection means (see, for example, Patent Document 1).

図７に示すように、本体１の下部に駆動源となるモータ２を設けており、このモータ２によって本体１の背面側に設けた送風ファン３および回転ドラム４を回転させるようにしている。また、本体１の正面側に熱源となるヒータ５を配設し、送風ファン３の回転によりヒータ５を通って加熱された熱風が熱風吹出口６を介して回転ドラム４内に導入され、回転ドラム４内に収容された衣類が加熱乾燥される。また、回転ドラム４にはバッフル７が配設され衣類を回転攪拌する。矢印Ａは風の流れを示している。   As shown in FIG. 7, a motor 2 serving as a drive source is provided at the lower portion of the main body 1, and the blower fan 3 and the rotary drum 4 provided on the back side of the main body 1 are rotated by the motor 2. In addition, a heater 5 serving as a heat source is disposed on the front side of the main body 1, and hot air heated through the heater 5 by rotation of the blower fan 3 is introduced into the rotating drum 4 through the hot air outlet 6 and rotated. The clothes accommodated in the drum 4 are heated and dried. The rotating drum 4 is provided with a baffle 7 for rotating and stirring the clothes. Arrow A indicates the flow of wind.

また、８は電極で、運転中に回転ドラム４内の衣類が接触するようにしている。この電極８は、図８に示すように２個の導電部材９と絶縁部材１０とにより構成され、導電部材９間の抵抗値Ｒを検出することによって衣類の乾燥状態を検知するようにし、図９に示すように導電部材９間の抵抗値Ｒが所定時間Ｔ１連続して設定値ａよりも大きくなった時刻ｔ２より、一定の遅延時間Ｔ３経過した時刻ｔ４において運転を終了するように構成している。なお遅延時間Ｔ３を設定するのは時刻ｔ２においては乾燥が不十分であるためである。
特開平６−３２７８９９号公報 Reference numeral 8 denotes an electrode which is in contact with clothes in the rotating drum 4 during operation. The electrode 8 is composed of two conductive members 9 and an insulating member 10 as shown in FIG. 8, and detects the dry state of the clothes by detecting the resistance value R between the conductive members 9. 9, the operation is terminated at a time t4 when a certain delay time T3 elapses from a time t2 when the resistance value R between the conductive members 9 is continuously greater than the set value a for a predetermined time T1. ing. The delay time T3 is set because drying is insufficient at the time t2.
JP-A-6-327899

しかしながら、このような従来の衣類乾燥機では、回転ドラム内の衣類が少量である場合、衣類が電極に接触しないために正確な乾燥検知ができないので、乾燥度に関係なくあらかじめ設定した時間だけ運転させていた。したがって、衣類が少量である場合には乾燥検知の精度が悪いという課題があった。   However, in such a conventional clothes dryer, when there is a small amount of clothes in the rotating drum, since the clothes do not contact the electrode, accurate drying detection cannot be performed, so that the operation is performed for a preset time regardless of the dryness. I was letting. Therefore, there is a problem that the accuracy of dryness detection is poor when the amount of clothing is small.

本発明は、上記従来の課題を解決するもので、衣類が少量であっても適度な乾き具合で運転を終了することできる衣類乾燥機を提供することを目的としている。   The present invention solves the above-described conventional problems, and an object of the present invention is to provide a clothes dryer that can finish the operation with an appropriate degree of drying even if the amount of clothes is small.

本発明の衣類乾燥機は上記目的を達成するために、乾燥度検出手段によって運転開始後第１の所定時間内に衣類の抵抗値が所定の値よりも小さいことを検出した回数が０であったとき、モータの回転数を変更し、さらに第２の所定時間内に乾燥度検出手段によって衣類の抵抗値が所定の値よりも小さいことを検出した回数が０であれば熱源への入力を止め、０でない場合は運転を継続するように構成した衣類乾燥機である。これにより、衣類が少量であっても適度な乾き具合で運転を終了することができるものである。   In order to achieve the above object, the clothes dryer of the present invention is zero in the number of times that the dryness detecting means detects that the resistance value of the clothes is smaller than the predetermined value within the first predetermined time after the start of operation. If the number of times that the dryness detecting means detects that the resistance value of the clothes is smaller than the predetermined value within the second predetermined time is 0, the input to the heat source is performed. If it is not 0, the clothes dryer is configured to continue driving. Thereby, even if there is a small amount of clothing, the operation can be completed with an appropriate dryness.

本発明の衣類乾燥機は、衣類が少量であっても適度な乾き具合で運転を終了することができる衣類乾燥機を実現することができる。   The clothes dryer of the present invention can realize a clothes dryer that can finish the operation with an appropriate degree of drying even if the amount of clothes is small.

本発明は、熱源と、衣類を収納し乾燥させる回転ドラムと、前記回転ドラム内に前記熱源により加熱された熱風を供給する送風ファンと、前記回転ドラムと前記送風ファンのうち少なくとも前記回転ドラムを回転させる駆動源となるモータと、前記回転ドラム内の衣類に接触する電極の抵抗値から衣類の乾燥度を検出する乾燥度検出手段と、前記乾燥度検出手段の情報により前記熱源と前記モータへの入力を制御する制御手段とを備え、前記制御手段は、前記乾燥度検出手段によって運転開始後第１の所定時間内に衣類の抵抗値が所定の値よりも小さいことを検出した回数が０であったとき、前記モータの回転数を変更し、さらに第２の所定時間内に前記乾燥度検出手段によって衣類の抵抗値が所定の値よりも小さいことを検出した回数が０であれば前記熱源への入力を止め、０でない場合は運転を継続するように構成したことにより、衣類が少量であっても適度な乾き具合で運転を終了することができるものである。   The present invention includes a heat source, a rotating drum for storing and drying clothes, a blower fan that supplies hot air heated by the heat source into the rotary drum, and at least the rotating drum of the rotating drum and the blower fan. A motor serving as a drive source for rotation; dryness detection means for detecting dryness of clothes from resistance values of electrodes in contact with the clothes in the rotating drum; and information about the dryness detection means to the heat source and the motor The control means controls the number of times that the dryness detection means detects that the resistance value of the garment is smaller than a predetermined value within a first predetermined time after the start of operation. The number of times that the rotation number of the motor is changed and the dryness detecting means detects that the resistance value of the clothes is smaller than a predetermined value within a second predetermined time is 0. Stopping the input to said heat source if, if not 0 With the arrangements so as to continue the operation, in which the garment can be terminated the operation at moderate dry condition even in small quantities.

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、従来例と同じ構成のものは同一符号を付して説明を省略する。また、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. In addition, the thing of the same structure as a prior art example attaches | subjects the same code | symbol, and abbreviate | omits description. Further, the present invention is not limited by this embodiment.

（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ブロック図、図２は同衣類乾燥機の縦断面図、図３は同衣類乾燥機の電極の斜視図、図４は同衣類乾燥機で普通に洗濯機で脱水した一般的な量の衣類を乾燥させた場合の動作タイムチャート、図５は同衣類乾燥機で極めて量の少ない湿った衣類の量を乾燥させた場合の動作タイムチャート、図６は同衣類乾燥機で乾いた衣類を入れて運転した場合の動作タイムチャートである。 (Embodiment 1)
1 is a block diagram of a clothes dryer according to Embodiment 1 of the present invention, FIG. 2 is a longitudinal sectional view of the clothes dryer, FIG. 3 is a perspective view of electrodes of the clothes dryer, and FIG. 4 is a clothes dryer. Fig. 5 is an operation time chart when a very small amount of wet clothing is dried by the clothes dryer. FIG. 6 is an operation time chart when the clothes dryer is operated with dry clothes.

図１〜図３において、衣類の乾燥度を検出する電極８は、運転中に回転ドラム４内の衣類が接触するように回転ドラム４内に配設している。電極８は２個の導電部材９と絶縁部材１０とにより構成され、抵抗検知手段１１によって導電部材９間の抵抗値を検出することで２個の導電部材９間にまたがって接触した衣類の抵抗値を検出している。乾燥度検出手段１２は抵抗検知手段１１によって衣類の抵抗値が所定の値よりも小さくなったことを検出した回数の時間変化の情報より衣類の乾燥度を検出する。   1 to 3, the electrode 8 for detecting the dryness of the clothes is disposed in the rotating drum 4 so that the clothes in the rotating drum 4 come into contact with each other during operation. The electrode 8 is composed of two conductive members 9 and an insulating member 10, and the resistance value of the clothing contacting the two conductive members 9 by detecting the resistance value between the conductive members 9 by the resistance detecting means 11. The value is detected. The dryness detecting means 12 detects the dryness of the clothes from the information of the time change of the number of times when the resistance detecting means 11 detects that the resistance value of the clothes is smaller than a predetermined value.

回転ドラム４にはマグネット１３が配設され、ファンケース１４に配設されたリードスイッチ１５の信号からドラム回転数検出手段１６により回転ドラム４の回転数を検出している。制御手段１７は乾燥度検出手段１２とドラム回転数検出手段１６の情報により、ヒータ５およびモータ２を制御する。   A magnet 13 is disposed on the rotating drum 4, and the number of rotations of the rotating drum 4 is detected by the drum rotation number detecting means 16 from the signal of the reed switch 15 disposed on the fan case 14. The control unit 17 controls the heater 5 and the motor 2 based on information from the dryness detection unit 12 and the drum rotation number detection unit 16.

図４（ａ）は普通に洗濯機で脱水した一般的な量の衣類を乾燥させた場合の、単位時間当りに抵抗検知手段１１によって衣類の抵抗値が所定の値よりも小さいことを検出した回数Ｙの時間変化を示したものである。この場合、一部の衣類はバッフル７に乗っかって回転することがあり得るが、大半の衣類は回転ドラム４内の上方に持ち上げられると自重によって回転ドラム４内の下方に落下し、その際に電極８に接触するので、衣類の抵抗値が所定の値よりも小さくなったことを検出した回数Ｙの値は運転当初から０ではなく、ｙ１である。   FIG. 4A shows that the resistance detection means 11 detects that the resistance value of the clothes is smaller than a predetermined value per unit time when a general amount of clothes dehydrated by a washing machine is dried. The time change of the number of times Y is shown. In this case, some clothing may rotate on the baffle 7, but when most clothing is lifted upward in the rotating drum 4, it falls down in the rotating drum 4 due to its own weight, Since the electrode 8 is in contact, the value of the number of times Y that the resistance value of the garment is detected to be smaller than a predetermined value is not zero from the beginning of operation but y1.

そして、Ｙの値は運転当初にはｙ１であったものが、乾燥の進行により徐々に回数が減少し、時刻ｔ５において０となる。乾燥度検出手段１２は時刻ｔ５において、ｙ１の値とｔ５より、残りの運転時間Ｔ６を算出する。衣類の量が多いときは乾燥に時間がかかるためｔ５が遅くなる。逆に少ないときはｔ５が早くなる。また、衣類の水分量が多いときの運転当初は電極８に湿った部分が当たる頻度が高いためｙ１が大きくなる。逆に水分量が少ないときはｙ１が小さくなる。   Then, the value of Y, which was y1 at the beginning of operation, gradually decreases with the progress of drying, and becomes 0 at time t5. The dryness detection means 12 calculates the remaining operation time T6 from the value of y1 and t5 at time t5. When the amount of clothing is large, t5 becomes slow because it takes time to dry. On the other hand, when it is small, t5 becomes faster. Further, at the beginning of operation when the amount of moisture in the garment is large, y1 becomes large because the frequency with which the wet portion hits the electrode 8 is high. Conversely, when the amount of water is small, y1 is small.

乾燥度検出手段１２は、このｙ１とｔ５から衣類の状態を検出し、運転終了時に適度な乾燥状態になるように時刻ｔ５以降の運転時間Ｔ６を決定し、図４（ｂ）に示すように制御手段１７によりヒータ５を時刻ｔ７まで通電する。図４（ｃ）はモータ２の回転数ｒの時間変化を示した図である。ヒータ５への通電終了後、回転ドラム４内の衣類の冷却のため、時刻ｔ８までモータ２を通電している。運転開始から所定時間Ｔ９（第１の所定時間）の間、図４（ａ）に示すＹは０でないので、所定時間Ｔ９経過以降もモータ２の回転数ｒはｒ１のまま変更せずに運転している。   The dryness detection means 12 detects the state of the clothes from these y1 and t5, determines the operation time T6 after the time t5 so as to be in an appropriate dry state at the end of the operation, as shown in FIG. 4 (b). The heater 5 is energized by the control means 17 until time t7. FIG. 4 (c) is a diagram showing the change over time in the rotational speed r of the motor 2. After the energization of the heater 5 is completed, the motor 2 is energized until time t8 in order to cool the clothes in the rotary drum 4. During the predetermined time T9 (first predetermined time) from the start of operation, Y shown in FIG. 4 (a) is not 0. Therefore, after the predetermined time T9 has elapsed, the rotation speed r of the motor 2 remains unchanged at r1. is doing.

図５（ａ）は同衣類乾燥機で極めて量の少ない湿った衣類を乾燥させた場合の、単位時間当りに抵抗検知手段１１によって衣類の抵抗値が所定の値よりも小さいことを検出した回数Ｙの時間変化を示したものである。衣類の量が少ないために、運転開始直後は衣類が回転ドラム４のバッフル７に乗っかって回転するため、電極８に衣類が当たらない。したがって運転開始から所定時間Ｔ９の間、図５（ａ）に示すＹは０になる。ここで、制御手段１７は、回転ドラム４が所定の回転数まで下がるように、所定時間Ｔ１０（第２の所定時間）の間、図５（ｃ）に示すようにモータ２の回転数ｒをｒ１からｒ２に下げる。これにより、バッフル７に乗っかっていた衣類にかかる遠心力が弱くなり、衣類はバッフル７から落ちて電極８に当たるようになる。所定時間Ｔ１０の間、図５（ａ）に示すＹは０ではないので、このまま運転を継続し、衣類の乾燥が進行し時刻ｔ１１においてＹは０になる。   FIG. 5 (a) shows the number of times that the resistance detection means 11 detects that the resistance value of the clothes is smaller than a predetermined value per unit time when extremely small amount of wet clothes is dried by the clothes dryer. The time change of Y is shown. Since the amount of clothing is small, immediately after the operation starts, the clothing rides on the baffle 7 of the rotating drum 4 and rotates, so that the clothing does not hit the electrode 8. Therefore, Y shown in FIG. 5A becomes 0 for a predetermined time T9 from the start of operation. Here, the control means 17 sets the rotational speed r of the motor 2 as shown in FIG. 5C for a predetermined time T10 (second predetermined time) so that the rotary drum 4 is lowered to the predetermined rotational speed. Lower from r1 to r2. Thereby, the centrifugal force applied to the clothes on the baffle 7 is weakened, and the clothes fall from the baffle 7 and come into contact with the electrodes 8. During the predetermined time T10, Y shown in FIG. 5A is not 0. Therefore, the operation is continued as it is, and the drying of the clothing proceeds, and Y becomes 0 at time t11.

乾燥度検出手段１２は時刻ｔ１１において、Ｙの最大値ｙ２とＹが０になった時刻ｔ１１より、残りの運転時間Ｔ１２を算出する。図５（ｂ）に示すように制御手段１７は時刻ｔ１３においてヒータ５への通電を停止し、回転ドラム４内の衣類の冷却のため、ヒータ５への通電停止以降も時刻ｔ１４までモータ２を通電している。   The dryness detection means 12 calculates the remaining operating time T12 from time t11 when the Y maximum value y2 and Y become 0 at time t11. As shown in FIG. 5 (b), the control means 17 stops energization to the heater 5 at time t13, and after the energization to the heater 5 is stopped until the time t14 in order to cool the clothes in the rotary drum 4. Energized.

図６（ａ）は同衣類乾燥機で乾いた衣類を入れて運転した場合の、単位時間当りに抵抗検知手段１１によって衣類の抵抗値が所定の値よりも小さいことを検出した回数Ｙの時間変化を示したものである。衣類が乾いているために運転開始から所定時間Ｔ９の間、図６（ａ）に示すＹは０になる。ここで、制御手段１７は、回転ドラム４が所定の回転数まで下がるように、所定時間Ｔ１０の間、図６（ｃ）に示すようにモータ２の回転数ｒをｒ１からｒ２に下げる。衣類が乾いているので、所定時間Ｔ１０の間も図６（ａ）に示すＹは０であるので、図６（ｂ）に示すように時刻ｔ１５においてただちにヒータ５への通電を停止し、回転ドラム４内の衣類の冷却のため、ヒータ５への通電停止以降も時刻ｔ１６までモータ２を通電し運転を終了する。したがって、図５に示す量の少ない湿った衣類の量を乾燥させた場合の終了時刻ｔ１４よりも早い時間で運転を終了させることができる。   FIG. 6A shows the number of times Y when the resistance detection means 11 detects that the resistance value of the clothes is smaller than a predetermined value per unit time when the clothes dryer is operated with dry clothes. It shows a change. Since the clothes are dry, Y shown in FIG. 6A is 0 for a predetermined time T9 from the start of operation. Here, the control means 17 lowers the rotational speed r of the motor 2 from r1 to r2, as shown in FIG. 6 (c), for a predetermined time T10 so that the rotating drum 4 decreases to the predetermined rotational speed. Since the clothes are dry, Y shown in FIG. 6 (a) is 0 even during the predetermined time T10. Therefore, as shown in FIG. 6 (b), the energization to the heater 5 is stopped immediately at time t15, and the rotation In order to cool the clothes in the drum 4, the motor 2 is energized until the time t16 even after the energization of the heater 5 is stopped, and the operation is terminated. Therefore, it is possible to finish the operation at a time earlier than the end time t14 when the amount of wet clothing having a small amount shown in FIG. 5 is dried.

なお、回転ドラム４内に衣類を入れずに運転したときも、乾いた衣類を入れて運転した場合と同じ動作となる。   In addition, when driving without putting clothes in the rotating drum 4, the same operation as when driving with dry clothes is performed.

以上のように、通常は図４に示すように、運転開始から所定時間Ｔ９の間Ｙの値を検出し、Ｙが０でない場合は、さらに衣類の乾燥が進んでＹが０となる時刻ｔ５において運転開始当初のＹの値ｙ１と時刻ｔ５より、残りの運転時間Ｔ６を算出し、ヒータ５への通電はこの運転時間Ｔ６が経過する時刻ｔ７まで継続し、モータ２は、さらに衣類の冷却のため時刻ｔ８まで回転数ｒ１を維持する。   As described above, normally, as shown in FIG. 4, the value of Y is detected for a predetermined time T9 from the start of operation, and when Y is not 0, the drying of the clothing further proceeds and time t5 when Y becomes 0 Then, the remaining operation time T6 is calculated from the Y value y1 at the beginning of operation and time t5, and energization of the heater 5 continues until time t7 when the operation time T6 elapses. The motor 2 further cools the clothing. Therefore, the rotational speed r1 is maintained until time t8.

しかし、極めて量の少ない湿った衣類を乾燥させた場合にも上記の運転を行うのでは乾燥に必要以上の時間を要し、無駄にエネルギー消費してしまう。また、過乾燥により衣類を傷めるおそれもある。   However, even when a very small amount of wet clothing is dried, if the above operation is performed, it takes more time than necessary for drying, and energy is wasted. Moreover, there is a risk of damaging clothing due to overdrying.

そこで、本発明では、運転開始から所定時間Ｔ９の間Ｙの値を検出し、その値が０であ
るか否かによって、普通に洗濯機で脱水した一般的な量の衣類を乾燥させた場合と極めて量の少ない湿った衣類を乾燥させた場合との判別を行い、その結果に応じてその後の運転条件を変えるようにした。 Therefore, in the present invention, when a value of Y is detected for a predetermined time T9 from the start of operation, and a general amount of clothes dehydrated by a washing machine is dried depending on whether the value is 0 or not, And the case of drying a very small amount of wet clothing, and the subsequent operating conditions were changed according to the result.

すなわち、運転開始から所定時間Ｔ９の間のＹの値が０でない場合には上記の運転を行うが、運転開始から所定時間Ｔ９の間にＹが０であった場合には、極めて量の少ない湿った衣類を乾燥させている可能性が高いと判断して、この時点で、モータ２の回転数ｒをｒ１からｒ２に下げてＹの値ｙ２を測定し、このｙ２と乾燥が進みＹが０になった時刻ｔ１１より、残りの運転時間Ｔ１２を算出し、ヒータ５への通電はこの運転時間Ｔ１２が経過する時刻ｔ１３まで継続し、モータ２は、さらに衣類の冷却のため時刻ｔ１４まで回転数ｒ２で回転を続行する。   That is, when the value of Y between the start of operation and the predetermined time T9 is not 0, the above operation is performed, but when Y is 0 between the start of operation and the predetermined time T9, the amount is extremely small. Judging that the wet clothes are likely to be dried, at this point, the rotational speed r of the motor 2 is decreased from r1 to r2, and the value y2 of Y is measured. The remaining operation time T12 is calculated from time t11 when the time reaches 0, and the heater 5 continues to be energized until time t13 when the operation time T12 elapses, and the motor 2 further rotates until time t14 for cooling the clothing. The rotation is continued with the number r2.

このようにして、極めて量の少ない湿った衣類を乾燥させた場合は、普通に洗濯機で脱水した一般的な量の衣類を乾燥させた場合の時刻ｔ８よりはるかに短い時刻ｔ１４で乾燥を自動終了させることができるので、乾燥に必要以上の時間を要し、無駄にエネルギーを消費してしまうことを回避することができる。また、過乾燥により衣類を傷めることも防止できる。   In this way, when a very small amount of wet clothing is dried, drying is automatically performed at time t14, which is much shorter than time t8 when a general amount of clothing dehydrated by a washing machine is dried. Since the process can be completed, it is possible to avoid unnecessary energy consumption for drying and unnecessary energy consumption. Moreover, it can prevent clothing from being damaged by overdrying.

さらに本発明では、極めて量の少ない湿った衣類を乾燥させた場合と類似した挙動を示す乾いた衣類を入れて運転した場合や衣類を入れずに運転した場合との判別の行うため、所定時間Ｔ９の間にＹが０であった場合には、その後の所定時間Ｔ１０の間のＹの値によってその結果に応じてその後の運転条件を変えるようにした。   Furthermore, in the present invention, it is possible to distinguish between a case of driving with dry clothing and a case of driving without putting on clothing for a predetermined period of time. When Y was 0 during T9, the subsequent operating conditions were changed according to the result according to the value of Y during the subsequent predetermined time T10.

すなわち、所定時間Ｔ１０の間のＹの値が０でない場合には、極めて量の少ない湿った衣類を乾燥させた場合と判断して、図５に示す上記の時刻ｔ１４までの運転を行うが、所定時間Ｔ１０の間にＹが０である場合には、乾いた衣類を入れて運転した場合もしくは衣類を入れずに運転した場合と判断して、図６に示すように、その時点（時刻ｔ１５）においてただちにヒータ５への通電を停止し、ヒータ５への通電停止以降も時刻ｔ１６までモータ２を通電し運転を終了する。   That is, when the value of Y during the predetermined time T10 is not 0, it is determined that a very small amount of wet clothing is dried, and the operation until the time t14 shown in FIG. When Y is 0 during the predetermined time T10, it is determined that the vehicle is operated with dry clothes or is operated without clothes, and as shown in FIG. ) Immediately, the energization of the heater 5 is stopped and the motor 2 is energized until the time t16 after the energization of the heater 5 is stopped.

したがって、乾いた衣類を入れて運転した場合もしくは衣類を入れずに運転した場合においても、図５に示す量の少ない湿った衣類の量を乾燥させた場合の終了時刻ｔ１４よりも早い時刻ｔ１６で運転を終了させることができるので、無駄にエネルギーを消費してしまうことを回避することができる。また、過乾燥により衣類を傷めることも防止できる。   Therefore, even when driving with dry clothing or without clothing, the time t16 is earlier than the end time t14 when the amount of wet clothing with a small amount shown in FIG. 5 is dried. Since the operation can be terminated, it is possible to avoid wasteful consumption of energy. Moreover, it can prevent clothing from being damaged by overdrying.

したがって、本発明の衣類乾燥機によれば、衣類が少量であっても適度な乾き具合で運転を終了することができるのみならず、乾いた衣類を入れた場合や衣類を入れずに運転していることを識別して極めて短い時間で運転を終了しエネルギーを節約することができる。   Therefore, according to the clothes dryer of the present invention, not only can the operation be completed with a moderate dryness even with a small amount of clothes, but also when the clothes are put in or without clothes. It is possible to save the energy by ending the operation in a very short time by identifying that.

以上のように、本発明にかかる衣類乾燥機は、衣類が少量であっても適度な乾き具合で運転を終了することが可能となるので、自動的に運転を終了する衣類乾燥機等として有用である。   As described above, since the clothes dryer according to the present invention can finish the operation with an appropriate degree of drying even if the amount of clothes is small, it is useful as a clothes dryer that automatically ends the operation. It is.

本発明の実施の形態１の衣類乾燥機のブロック図Block diagram of the clothes dryer according to the first embodiment of the present invention. 同衣類乾燥機の縦断面図Vertical section of the clothes dryer 同衣類乾燥機の電極の斜視図Perspective view of electrode of clothes dryer （ａ）同衣類乾燥機で普通に洗濯機で脱水した一般的な量の衣類を乾燥させたときの抵抗検知手段の出力特性図（ｂ）同衣類乾燥機で普通に洗濯機で脱水した一般的な量の衣類を乾燥させたときのヒータ入力の時間変化を示す図（ｃ）同衣類乾燥機で普通に洗濯機で脱水した一般的な量の衣類を乾燥させたときのモータ回転数の時間変化を示す図(A) Output characteristic diagram of resistance detection means when a general amount of clothes dehydrated in a washing machine in the same clothes dryer is dried (b) General dewatering in a washing machine in the same clothes dryer (C) The time change of the heater input when an appropriate amount of clothing is dried (c) The motor rotation speed when a general amount of clothing dehydrated with a washing machine is dried with the same clothing dryer Diagram showing changes over time （ａ）同衣類乾燥機で極めて量の少ない湿った衣類を乾燥させたときの抵抗検知手段の出力特性図（ｂ）同衣類乾燥機で極めて量の少ない湿った衣類を乾燥させたときのヒータ入力の時間変化を示す図（ｃ）同衣類乾燥機で極めて量の少ない湿った衣類を乾燥させたときのモータ回転数の時間変化を示す図(A) Output characteristic diagram of resistance detection means when extremely small amount of wet clothing is dried by the clothes dryer (b) Heater when extremely small amount of wet clothing is dried by the clothes dryer (C) The time change of the motor rotation number when drying the very small amount of wet clothes with the clothes dryer （ａ）同衣類乾燥機で乾いた衣類を入れて乾燥させたときの抵抗検知手段の出力特性図（ｂ）同衣類乾燥機で乾いた衣類を入れて乾燥させたときのヒータ入力の時間変化を示す図（ｃ）同衣類乾燥機で乾いた衣類を入れて乾燥させたときのモータ回転数の時間変化を示す図(A) Output characteristic diagram of resistance detection means when dry clothes are put and dried by the clothes dryer (b) Time change of heater input when dry clothes are put and dried by the clothes dryer (C) The figure which shows the time change of the motor rotation speed when dry clothes are put and dried with the clothes dryer 従来の衣類乾燥機の縦断面図Vertical section of a conventional clothes dryer 同衣類乾燥機の電極の斜視図Perspective view of electrode of clothes dryer 同衣類乾燥機の抵抗検知部の出力特性図Output characteristics of the resistance detector of the clothes dryer

１ 本体
２ モータ
３ 送風ファン
４ 回転ドラム
５ ヒータ（熱源）
７ バッフル
８ 電極
１１ 抵抗検知手段
１２ 乾燥度検出手段
１６ ドラム回転数検出手段
１７ 制御手段 1 Body 2 Motor 3 Blower Fan 4 Rotating Drum 5 Heater (Heat Source)
7 Baffle 8 Electrode 11 Resistance detection means 12 Dryness detection means 16 Drum rotation speed detection means 17 Control means

Claims (1)

熱源と、衣類を収納し乾燥させる回転ドラムと、前記回転ドラム内に前記熱源により加熱された熱風を供給する送風ファンと、前記回転ドラムと前記送風ファンのうち少なくとも前記回転ドラムを回転させる駆動源となるモータと、前記回転ドラム内の衣類に接触する電極の抵抗値から衣類の乾燥度を検出する乾燥度検出手段と、前記乾燥度検出手段の情報により前記熱源と前記モータへの入力を制御する制御手段とを備え、前記制御手段は、前記乾燥度検出手段によって運転開始後第１の所定時間内に衣類の抵抗値が所定の値よりも小さいことを検出した回数が０であったとき、前記モータの回転数を変更し、さらに第２の所定時間内に前記乾燥度検出手段によって衣類の抵抗値が所定の値よりも小さいことを検出した回数が０であれば前記熱源への入力を止め、０でない場合は運転を継続するように構成した衣類乾燥機。 A heat source, a rotating drum for storing and drying clothes, a blower fan for supplying hot air heated by the heat source into the rotating drum, and a drive source for rotating at least the rotating drum among the rotating drum and the blower fan A dryness detection means for detecting the dryness of the clothes from the resistance value of the electrode in contact with the clothes in the rotary drum, and the input to the heat source and the motor is controlled by information of the dryness detection means And when the number of times that the dryness detecting means detects that the resistance value of the garment is smaller than the predetermined value within the first predetermined time after the start of operation is 0. If the number of times that the rotational speed of the motor is changed and the dryness detecting means detects that the resistance value of the garment is smaller than a predetermined value within a second predetermined time is 0, Stopping the input to the heat source, a clothes dryer when not 0 that is configured to continue the operation.
JP2009088921A 2009-04-01 2009-04-01 Clothes dryer Expired - Fee Related JP5012845B2 (en)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2016052394A (en) * 2014-09-03 2016-04-14 株式会社東芝 Washing and drying machine
JP2019037896A (en) * 2018-12-17 2019-03-14 東芝ライフスタイル株式会社 Washing and drying machine

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JPH0438999A (en) * 1990-06-01 1992-02-10 Matsushita Electric Ind Co Ltd Controller of garment dryer
JPH08103598A (en) * 1994-10-06 1996-04-23 Matsushita Electric Ind Co Ltd Control device of clothing dryer
JP2002273099A (en) * 2001-03-15 2002-09-24 Matsushita Electric Ind Co Ltd Clothing dryer

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0438999A (en) * 1990-06-01 1992-02-10 Matsushita Electric Ind Co Ltd Controller of garment dryer
JPH08103598A (en) * 1994-10-06 1996-04-23 Matsushita Electric Ind Co Ltd Control device of clothing dryer
JP2002273099A (en) * 2001-03-15 2002-09-24 Matsushita Electric Ind Co Ltd Clothing dryer

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2016052394A (en) * 2014-09-03 2016-04-14 株式会社東芝 Washing and drying machine
JP2019037896A (en) * 2018-12-17 2019-03-14 東芝ライフスタイル株式会社 Washing and drying machine

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