JP2013085792A - Clothing drying machine - Google Patents

Clothing drying machine Download PDF

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JP2013085792A
JP2013085792A JP2011230483A JP2011230483A JP2013085792A JP 2013085792 A JP2013085792 A JP 2013085792A JP 2011230483 A JP2011230483 A JP 2011230483A JP 2011230483 A JP2011230483 A JP 2011230483A JP 2013085792 A JP2013085792 A JP 2013085792A
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resistance value
electrode
clothes
electrodes
drum
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Yuta Miura
祐太 三浦
Shinichi Matsuda
眞一 松田
Kazuhiko Hashimoto
和彦 橋本
Takashi Komatsu
隆 小松
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Panasonic Corp
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Panasonic Corp
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Abstract

PROBLEM TO BE SOLVED: To accurately detect a degree of dryness of the clothing in a rotary drum.SOLUTION: A clothing drying machine comprises: first electrodes 9 and second electrodes 10 which are provided so as to contact the clothing in a rotary drum 1; first resistance value detection means 18 and second resistance value detection means 19 which detect a resistance value between the first electrodes and a resistance value between the second electrodes, respectively; calculation means 20 connected to the first and second resistance value detection means; and drum rotation control means 21 for controlling rotation of the rotary drum by using an output of the calculation means. The calculation means calculates at least one of the difference between the plurality of electrode detection resistance values and the difference between the plurality of electrode detection resistance values outputted from the first and second resistance value detection means, respectively, to determine a degree of dryness of the clothing to finish a drying operation automatically.

Description

本発明は、衣類等の洗濯物を乾燥させる衣類乾燥機に関するものである。   The present invention relates to a clothes dryer that dries laundry such as clothes.

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 have been 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手段と、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手段の情報とに基づいて、運転時間を設定するようにしたものが考えられている(例えば、特許文献1参照)。   Conventionally, this type of clothes dryer has a resistance detecting means for detecting a resistance value of an electrode provided so as to come into contact with clothes in a rotary drum, and a temperature detecting means for detecting the temperature of hot air during drying by a temperature sensor. Based on this information, an operation time is set (see, for example, 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6において、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、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を設けて温度を検出するようにしている。   FIG. 6 is a block circuit diagram of a conventional clothes dryer described in Patent Document 1. In FIG. In FIG. 6, a heater 51 having a positive temperature characteristic as a heat source is disposed on an inner peripheral plate having a hot air outlet provided on the front side of the main body, and the temperature heated through the heater 51 by the rotation of the blower fan. Wind 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 at the lower and upper portions of the hot air outlet of the inner peripheral plate so as to detect the temperature.

抵抗検知手段53では電極54の抵抗値を検出し、温度検知手段55は温度センサ52a、52bからの温度を検出する。制御手段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おり、抵抗検知手段53および温度検知手段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 detection unit 53 detects the resistance value of the electrode 54, and the temperature detection unit 55 detects the temperature from the temperature sensors 52a and 52b. The control means 56 is composed of various electronic circuits including a microcomputer and takes in signals from the resistance detection means 53 and the temperature detection means 55 and controls energization of 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において運転を終了するように構成している。   Then, as shown in FIG. 7, the operation is terminated at time t8 when the delay time T7 has elapsed from time t6 when the resistance value R of the electrode 54 becomes greater than the set value b for a predetermined time T5. ing.

また、電極検知時間比較手段58によって得られた情報は、運転前の被乾燥物が水分を多く含んでいるときは、抵抗比較手段59により抵抗値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t6が早くなる。このt6を電極検知時間比較手段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。   Further, the information obtained by the electrode detection time comparison means 58 shows that when the dried object before operation contains a lot of moisture, the resistance comparison means 59 makes the resistance value R continuously from the set value b by the predetermined time T5. The time t6 when the time becomes larger is delayed. Conversely, when the moisture content to be dried before operation is small, t6 becomes faster. By comparing this t6 with a plurality of set values by the electrode detection time comparison means 58, it is possible to know the wetness of the object to be dried before operation.

演算手段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ようにしている。このため、負荷量、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ようにしたものである。   The calculation means 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 delay time can be set according to the load amount and the degree of wetness, and the operation can be automatically stopped in the optimum operation time.

特開平5−253397号公報Japanese Patent Application Laid-Open No. 5-25397

しかしながら、前記従来の構成では、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、一対の電極間の抵抗値が急激に変化するため、乾燥終了検知と衣類の絡まり検知
を判別することが難しいという問題があった。
However, in the conventional configuration, when tangling of clothes in the rotating drum occurs during the drying operation, the resistance value between the pair of electrodes changes abruptly. There was a problem that was difficult.

本発明は、前記従来の課題を解決するもので、回転ドラム内の衣類の乾き度合いを精度よく検出できる衣類乾燥機を提供することを目的とする。   The present invention solves the above-described conventional problems, and an object of the present invention is to provide a clothes dryer that can accurately detect the degree of drying of clothes in a rotating drum.

前記従来の課題を解決するために、本発明の衣類乾燥機は、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の電極および第2の電極と、前記第1の電極に接続され、前記第1の電極間の抵抗値を検出する第1の抵抗値検出手段と、前記第2の電極に接続され、前記第2の電極間の抵抗値を検出する第2の抵抗値検出手段と、前記第1の抵抗値検出手段および前記第2の抵抗値検出手段に接続された演算手段と、前記演算手段の出力により前記回転ドラムの回転を制御するドラム回転制御手段とを備え、前記演算手段は、前記第1の抵抗値検出手段および前記第2の抵抗値検出手段から出力される複数の電極検出抵抗値および複数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し、乾燥運転を自動的に終了するようにしたものである。   In order to solve the conventional problem, a clothes dryer according to the present invention includes a first electrode and a second electrode provided on an inner peripheral plate so as to come into contact with clothes in a rotating drum, and the first electrode A first resistance value detecting means for detecting a resistance value between the first electrodes connected to the electrodes; and a second resistance value detecting means for detecting the resistance value between the second electrodes connected to the second electrode. Resistance value detection means, calculation means connected to the first resistance value detection means and the second resistance value detection means, and drum rotation control means for controlling the rotation of the rotating drum by the output of the calculation means The calculation means includes at least one of a plurality of electrode detection resistance values and a plurality of electrode detection resistance values output from the first resistance value detection means and the second resistance value detection means. In the rotating drum Determine the dryness degree of the clothes, in which to automatically terminates the drying operation.

これによって、乾燥運転中に複数の電極検出抵抗値および複数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。   Thus, during the drying operation, by calculating at least one of the plurality of electrode detection resistance values and the difference between the plurality of electrode detection resistance values, the presence or absence of the degree of tangling of the clothing in the rotating drum is detected, and the clothing A dry state can be detected with high accuracy.

本発明の衣類乾燥機は、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、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。   The clothes dryer of the present invention can accurately detect the degree of drying of the clothes in the rotating drum during the drying operation, can reduce the variation in the drying rate of the clothes after drying, and can efficiently dry. it can.

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Sectional drawing of the principal part of the clothes dryer in Embodiment 1 of this invention. 同衣類乾燥機の図1のA−A矢視図AA arrow view of the clothes dryer in FIG. 同衣類乾燥機の要部システム概略図Main system schematic diagram of the clothes dryer 同衣類乾燥機の電極検出抵抗値の時間変化を示すグラフGraph showing the time change of the electrode detection resistance value of the clothes dryer 本発明の実施の形態2における衣類乾燥機の図1のA−A矢視図AA arrow view of the clothes dryer in Embodiment 2 of the present invention in FIG. 従来の衣類乾燥機のブロック回路図Block diagram of a conventional clothes dryer 同衣類乾燥機の電極の検出抵抗値の時間変化を示すグラフThe graph which shows the time change of the detection resistance value of the electrode of the clothes dryer

第1の発明は、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の電極および第2の電極と、前記第1の電極に接続され、前記第1の電極間の抵抗値を検出する第1の抵抗値検出手段と、前記第2の電極に接続され、前記第2の電極間の抵抗値を検出する第2の抵抗値検出手段と、前記第1の抵抗値検出手段および前記第2の抵抗値検出手段に接続された演算手段と、前記演算手段の出力により前記回転ドラムの回転を制御するドラム回転制御手段とを備え、前記演算手段は、前記第1の抵抗値検出手段および前記第2の抵抗値検出手段から出力される複数の電極検出抵抗値および複数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し、乾燥運転を自動的に終了するようにしたことにより、乾燥運転中において、回転ドラム内の衣類が湿り状態かつ衣類の絡まりがない場合、第1の電極間の抵抗値および第2の電極間の抵抗値が検出抵抗値より小さく、「湿り状態」であると判断して、低電位信号が第1の抵抗値検出手段および第2の抵抗値検出手段にそれぞれ入力される。また、回転ドラム内の衣類が湿り状態かつ衣類の絡まりがある場合、第1の電極間
の抵抗値が検出抵抗値より大きく、「乾き状態」であると判断して、高電位信号が第1の抵抗値検出手段に入力され、かつ第2の電極間の抵抗値が検出抵抗値より小さく、「湿り状態」であると判断して、低電位信号が第2の抵抗値検出手段に入力される。また、回転ドラム内の衣類が乾き状態の場合、第1の電極間の抵抗値および第2の電極間の抵抗値が検出抵抗値より大きく、「乾き状態」であると判断して、高電位信号が第1の抵抗値検出手段および第2の抵抗値検出手段にそれぞれ入力される。したがって、乾燥運転中に複数の電極検出抵抗値および複数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。
1st invention is provided in the said inner peripheral board so that the rotating drum provided in the main body rotatably, the inner peripheral board provided in the front part of the said main body, and the clothing in the said rotating drum may be contacted. A first resistance value detecting means connected to the first electrode for detecting a resistance value between the first electrodes, and connected to the second electrode; Second resistance value detection means for detecting a resistance value between the second electrodes, calculation means connected to the first resistance value detection means and the second resistance value detection means, and the calculation Drum rotation control means for controlling the rotation of the rotating drum according to the output of the means, wherein the calculation means detects a plurality of electrodes output from the first resistance value detection means and the second resistance value detection means. At least one of the difference between the resistance value and the plurality of electrode detection resistance values By calculating one of them, the degree of dryness of the clothes in the rotating drum is determined, and the drying operation is automatically terminated, so that the clothes in the rotating drum are wet and the clothes are in the drying operation. If the resistance value between the first electrodes and the resistance value between the second electrodes are smaller than the detection resistance value, it is determined that the state is “wet state”, and the low potential signal is the first resistance value. Each is input to the detection means and the second resistance value detection means. Further, when the clothes in the rotating drum are wet and the clothes are tangled, it is determined that the resistance value between the first electrodes is larger than the detection resistance value and is in a “dry state”, and the high potential signal is And the resistance value between the second electrodes is smaller than the detected resistance value and is judged to be “wet”, and a low potential signal is input to the second resistance value detecting means. The Further, when the clothes in the rotating drum are in a dry state, it is determined that the resistance value between the first electrodes and the resistance value between the second electrodes are larger than the detection resistance value and are in a “dry state”, and the high potential A signal is input to each of the first resistance value detecting means and the second resistance value detecting means. Therefore, by calculating at least one of the plurality of electrode detection resistance values and the difference between the plurality of electrode detection resistance values during the drying operation, the presence or absence of the tangled state of the clothes in the rotating drum is detected, and the clothes are dried. The state can be detected with high accuracy.

第2の発明は、特に、第1の発明の第1の電極および第2の電極は、一方の電極を、内周板の回転ドラムの回転軸を通る垂直平面に対して左方部に設け、他方の電極を、内周板の回転ドラムの回転軸を通る垂直平面に対して右方部に設けたことにより、複数の電極が互いに回転ドラムの回転方向の内周板の異なる位置に設けられるため、回転ドラム内の衣類の絡まり度合いにより、複数の電極間の検出抵抗値の不均衡が発生する(複数の検出抵抗値の差分が変化する)ため、衣類の絡まりの有無を検出することができる。   In the second invention, in particular, the first electrode and the second electrode of the first invention are provided with one electrode on the left side with respect to a vertical plane passing through the rotation axis of the rotating drum of the inner peripheral plate. By providing the other electrode on the right side with respect to the vertical plane passing through the rotation axis of the rotating drum of the inner peripheral plate, a plurality of electrodes are provided at different positions on the inner peripheral plate in the rotational direction of the rotating drum. Therefore, the detection resistance value imbalance between the plurality of electrodes occurs due to the degree of tangling of the clothing in the rotating drum (the difference between the plurality of detection resistance values changes), so that the presence or absence of tangling of the clothing is detected. Can do.

第3の発明は、特に、第1の発明の第1の電極および第2の電極は、一方の電極を、内周板の回転ドラムの回転軸を通る水平平面に対して上方部に設け、他方の電極を、内周板の回転ドラムの回転軸を通る水平平面に対して下方部に設けたことにより、複数の電極が互いに回転ドラムの回転方向の内周板の異なる位置に設けられるため、回転ドラム内の衣類の絡まり度合いにより、複数の電極間の検出抵抗値の不均衡が発生する(複数の検出抵抗値の差分が変化する)ため、衣類の絡まりの有無を検出することができる。   In the third invention, in particular, the first electrode and the second electrode of the first invention are provided with one electrode in an upper part with respect to a horizontal plane passing through the rotation axis of the rotating drum of the inner peripheral plate, Since the other electrode is provided in a lower part with respect to a horizontal plane passing through the rotation axis of the rotary drum of the inner peripheral plate, a plurality of electrodes are provided at different positions on the inner peripheral plate in the rotation direction of the rotary drum. Because of the degree of entanglement of the clothes in the rotating drum, an imbalance of the detection resistance values between the plurality of electrodes occurs (the difference between the plurality of detection resistance values changes), so it is possible to detect the presence or absence of tangling of the clothes. .

第4の発明は、特に、第1〜第3のいずれか1つの発明の演算手段は、回転ドラムの回転方向に応じて、第1の抵抗値検出手段および第2の抵抗値検出手段に接続された複数の検出抵抗を切り換えるようにしたことにより、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電極間の検出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。   In the fourth invention, in particular, the arithmetic means according to any one of the first to third inventions is connected to the first resistance value detecting means and the second resistance value detecting means according to the rotation direction of the rotating drum. By switching between the plurality of detection resistors, the detection resistance value between the plurality of electrodes during the drying operation is in an equilibrium state when there is no tangling of the clothing in the rotating drum. Tangle detection can be determined.

第5の発明は、特に、第1〜第3のいずれか1つの発明の演算手段は、第1の抵抗値検出手段および第2の抵抗値検出手段が検出する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ようにしたことにより、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。   In the fifth aspect of the invention, in particular, the arithmetic means according to any one of the first to third aspects of the invention includes the electrode detection resistance value and the elapsed time detected by the first resistance value detection means and the second resistance value detection means. Due to the comparison operation, the presence or absence of tangled clothing is detected, so that the drying operation end time can be corrected according to the presence or absence of tangled clothing during the drying operation. The variation in the drying rate of the clothes after the drying operation (finished) can be reduced.

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、本発明の第1の実施の形態における衣類乾燥機の要部断面図、図2は、同衣類乾燥機の図1のA−A矢視図、図3は、同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 a main part of a clothes dryer according to the first embodiment of the present invention, FIG. 2 is a view of the clothes dryer as seen from an arrow AA in FIG. 1, and FIG. FIG.

図1〜図3において、衣類イ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2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を回転させるようにしている。乾燥用空気は、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を回転させ、衣類イ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を導入するようにしている。   1 to 3, a rotating drum 1 that puts a drying object such as clothes a and dries is rotatably provided in a main body 2 of the clothes dryer. A motor 3 for driving the rotating drum 1 is provided, and the rotating drum 1 is rotated via the rotating drum belt 4 by driving the motor 3. The drying air is driven by the motor 3 to rotate the blower fan 6 through the blower fan belt 5 and introduces the dry air through the circulation air passage 7 into the rotary drum 1 constituting the drying chamber containing the clothes. Like to do.

回転ドラム1の前面側に設けた内周板8は、本体2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イに接触するように内周板8の回転ドラム1側に、第1の電極9および第2の電極10が設けられており、内周板8の内周8aと外周8bの間に配設されている。   An inner peripheral plate 8 provided on the front side of the rotating drum 1 is attached to the front portion of the main body 2 and rotatably supports the front portion of the rotating drum 1. During the drying operation, a first electrode 9 and a second electrode 10 are provided on the rotary drum 1 side of the inner peripheral plate 8 so as to come into contact with the clothes agitated in the rotary drum 1, and the inner peripheral plate 8 is disposed between an inner periphery 8a and an outer periphery 8b.

第1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、また、第2の電極10も第1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 electrode 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 the pair of electrode portions 9a and 9b. Similarly to the first electrode 9, the second electrode 10 also has a pair of electrode portions 10a and 10b made of a metal conductive member and an insulating member (see FIG. 5) that electrically insulates between the pair of electrode portions 10a and 10b. (Not shown).

一対の電極部9aと9b、および一対の電極部10aと10bは、それぞれ所定の間隔をおいて、近接した位置で対向配置し、回転ドラム1の回転軸1aからの距離が異なるように配置してあり、電極部9aと9bおよび電極部10aと10b間に跨って接触した衣類イの抵抗値を検出する。   The pair of electrode portions 9a and 9b and the pair of electrode portions 10a and 10b are arranged to face each other at a predetermined distance and are arranged so that the distance from the rotating shaft 1a of the rotating drum 1 is different. The resistance value of the clothing a touching between the electrode portions 9a and 9b and the electrode portions 10a and 10b is detected.

第1の電極9および第2の電極10は、回転ドラム1の回転方向(矢印ロ方向)にずれた位置で内周板8に設けられている。一方の第1の電極9は、内周板8の回転ドラム1の回転軸1aを通る垂直平面ハに対する左方部に設けられ、他方の第2の電極10は、内周板8の回転ドラム1の回転軸1aを通る垂直平面ハに対する右方部に設けられている。   The first electrode 9 and the second electrode 10 are provided on the inner peripheral plate 8 at a position shifted in the rotation direction (arrow B direction) of the rotary drum 1. One first electrode 9 is provided on the left side of a vertical plane c passing through the rotation shaft 1 a of the rotary drum 1 of the inner peripheral plate 8, and the other second electrode 10 is a rotary drum of the inner peripheral plate 8. 1 is provided on the right side with respect to a vertical plane C passing through one rotating shaft 1a.

第1の電極9および第2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、互いに内周板上8に設けられる位置が回転ドラム1の回転方向に異なることにより、回転ドラム1内の衣類イが複数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。   The first electrode 9 and the second electrode 10 are disposed below or above the rotation shaft 1a at an angle θ (for example, approximately 120 degrees) with respect to the rotation shaft 1a of the rotary drum 1, and are mutually inner peripheral. Since the positions provided on the plate 8 are different in the rotation direction of the rotary drum 1, the frequencies per unit time at which the clothes a in the rotary drum 1 contact the plurality of pairs of electrodes are different from each other.

ヒートポンプ装置11は、圧縮機12、および圧縮された冷媒の熱を放熱する放熱器13、および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絞り手段14、および減圧されて低圧となった冷媒が周囲から熱を奪う吸熱器15とを冷媒が循環するように管路16で連結されており、冷媒は、図1の矢印B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。制御手段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 includes a compressor 12, a radiator 13 that radiates heat of the compressed refrigerant, a throttle means 14 including a throttle valve, a capillary tube, and the like for reducing the pressure of the high-pressure refrigerant, and a low-pressure reduced pressure. The refrigerant is connected to the heat absorber 15 that takes heat from the surroundings by a pipe 16 so that the refrigerant circulates, and the refrigerant flows and circulates in the direction of arrow B in FIG. 1 to realize a heat pump cycle. To do. The control means 17 controls the motor 3, the heat pump device 11, etc., and controls the drying operation.

図3において、第1の電極9および第2の電極10は、回転ドラム1内の衣類イ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、湿り状態の衣類イが第1の電極9または第2の電極10に接触した場合、一対の電極部9aと9b、および電極部10aと10b間が電気的に導通するため、電極検出信号が第1の抵抗値検出手段18または第2の抵抗値検出手段19にそれぞれ入力される。   In FIG. 3, the first electrode 9 and the second electrode 10 are provided on the rotary drum 1 side of the inner peripheral plate 8 so as to come into contact with the clothes i in the rotary drum 1, and the wet clothes i is the first. When the electrode 9 or the second electrode 10 is contacted, the pair of electrode portions 9a and 9b and the electrode portions 10a and 10b are electrically connected, so that the electrode detection signal is transmitted to the first resistance value detecting means 18 or Each is input to the second resistance value detection means 19.

また、乾き状態の衣類イが第1の電極9または第2の電極10に接触した場合、一対の電極部9aと9b、および電極部10aと10b間が電気的に導通しないため、電極検出信号が第1の抵抗値検出手段18または第2の抵抗値検出手段19にそれぞれ入力されない。   In addition, when the dry clothing A comes into contact with the first electrode 9 or the second electrode 10, the pair of electrode portions 9a and 9b and the electrode portions 10a and 10b are not electrically connected. Are not input to the first resistance value detecting means 18 or the second resistance value detecting means 19, respectively.

制御手段17において、第1の電極9および第2の電極10に接続された第1の抵抗値検出手段18および第2の抵抗値検出手段19からの電極検出信号が演算手段20に入力され、演算処理された信号をドラム回転制御手段21に入力する。制御手段17には、第1の抵抗値検出手段18および第2の抵抗値検出手段19、演算手段20、ドラム回転制御手段21が内包されている。   In the control means 17, the electrode detection signals from the first resistance value detection means 18 and the second resistance value detection means 19 connected to the first electrode 9 and the second electrode 10 are input to the calculation means 20, The calculated signal is input to the drum rotation control means 21. The control means 17 includes a first resistance value detection means 18, a second resistance value detection means 19, a calculation means 20, and a drum rotation control means 21.

制御手段17は、演算手段20において演算処理された信号に基づいて、複数の検出抵抗に接続されたトランジスタをオン/オフすることにより、複数個の一対の電極間の抵抗値を検出するための複数の検出抵抗を切り換える。   The control unit 17 detects the resistance value between the plurality of pairs of electrodes by turning on / off the transistors connected to the plurality of detection resistors based on the signal calculated by the calculation unit 20. Switch between multiple sensing resistors.

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イをドア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C)が生じる。乾燥用空気は、回転ドラム1内の衣類イ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。   About the clothes dryer comprised as mentioned above, the operation | movement and an effect | action are demonstrated below. First, the clothes to be dried are opened / closed and the door 22 is opened and closed, and then the rotating drum 1 is started. When the drying operation is started, the motor 3 is driven, and the rotating drum 1 and the blower fan 6 rotate to rotate the circulation air path 7. The flow of drying air (arrow C) occurs. The drying air takes moisture from the clothes i 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。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イの乾燥が進行する。   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. The amount of heat absorbed by the heat absorber 15 is added to the amount of heat from the compressor 12, and is heated by heat radiation from the refrigerant that has become high temperature, and is circulated again into the rotary drum 1 from the outlet 23. By repeating the above, the drying of the clothes i progresses.

回転ドラム1内で撹拌される衣類イが第1の電極9および第2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、低電位信号が第1の抵抗値検出手段18および第2の抵抗値検出手段19にそれぞれ入力される。   When the clothes agitated in the rotary drum 1 come into contact with the first electrode 9 and the second electrode 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 in a “wet state”, the low potential signal is output from the first resistance value detection unit 18 and the first resistance value detection unit 18. 2 is input to the resistance value detection means 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内の衣類イが「乾き状態」であると判断した場合は、高電位信号が第1の抵抗値検出手段18および第2の抵抗値検出手段19にそれぞれ入力される。   When the resistance value between the pair of electrodes is larger than the detection resistance value, that is, when it is determined that the clothes a in the rotary drum 1 are in the “dry state”, the high potential signal is output from the first resistance value detection means 18 and Each is input to the second resistance value detection means 19.

演算手段20は、第1の抵抗値検出手段18および第2の抵抗値検出手段19から入力される単位時間(例えば、10秒間)あたりの高電位信号(回転ドラム1内の衣類が「乾き状態」)のデータ数を差分演算することにより、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。   The calculating means 20 is a high-potential signal per unit time (for example, 10 seconds) input from the first resistance value detecting means 18 and the second resistance value detecting means 19 (the clothes in the rotating drum 1 are in a “dry state”). ]), The degree of dryness of the clothes in the rotary drum 1 can be detected.

図4は、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している。回転ドラム1内の衣類イが、湿り状態かつ衣類の絡まりがない場合(時刻t1)、第1の電極9間の抵抗値24および第2の電極10間の抵抗値25が検出抵抗値より小さいので、つまり回転ドラム1内の衣類イが「湿り状態」であると判断するので、低電位信号が第1の抵抗値検出手段18および第2の抵抗値検出手段19にそれぞれ入力される。すなわち、第1の抵抗値検出手段18および第2の抵抗値検出手段19から入力される単位時間(例えば、10秒間)あたりの高電位信号(回転ドラム1内の衣類が「乾き状態」)のデータ数は、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. 4 shows the time change of the electrode detection resistance value of the clothes dryer in the first embodiment. When the clothes in the rotary drum 1 are wet and there is no tangled clothes (time t1), the resistance value 24 between the first electrodes 9 and the resistance value 25 between the second electrodes 10 are smaller than the detected resistance value. That is, since it is determined that the clothes a in the rotary drum 1 are in a “wet state”, the low potential signal is input to the first resistance value detecting means 18 and the second resistance value detecting means 19, respectively. That is, a high potential signal per unit time (for example, 10 seconds) input from the first resistance value detection means 18 and the second resistance value detection means 19 (the clothes in the rotating drum 1 are “dry”). The number of data is a value smaller than the electrode detection resistance value Rd determined to be in a dry state.

回転ドラム1内の衣類イが、湿り状態かつ衣類の絡まりがある場合(時刻t2)、第1の電極9間の抵抗値24が電極検出抵抗値Rd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の抵抗値検出手段18に入力され、かつ第2の電極10間の抵抗値25が電極検出抵抗値Rd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の抵抗値検出手段19に入力される。すなわち、第1の抵抗値検出手段18および第2の抵抗値検出手段19から入力される単位時間(例えば、10秒間)あたりの高電位信号(回転ドラム1内の衣類が「乾き状態」)のデータ数は、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 clothes i in the rotating drum 1 are wet and there are tangled clothes (time t2), the resistance value 24 between the first electrodes 9 is larger than the electrode detection resistance value Rd, that is, the clothes in the rotating drum 1 Therefore, since the high potential signal is input to the first resistance value detecting means 18 and the resistance value 25 between the second electrodes 10 is smaller than the electrode detection resistance value Rd, that is, Since it is determined that the clothes in the rotating drum 1 are in a “wet state”, a low potential signal is input to the second resistance value detecting means 19. That is, a high potential signal per unit time (for example, 10 seconds) input from the first resistance value detection means 18 and the second resistance value detection means 19 (the clothes in the rotating drum 1 are “dry”). The number of data is a value larger than the electrode detection resistance value Rd that is determined that one of them is in a dry state.

回転ドラム1内の衣類イが乾き状態の場合(時刻t3)、第1の電極9間の抵抗値24および第2の電極10間の抵抗値25が電極検出抵抗値Rd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の抵抗値検出手段18および第2の抵抗値検出手段19にそれぞれ入力される。すなわち、第1の抵抗値検出手段18および第2の抵抗値検出手段19から入力される単位時間(例えば、10秒間)あたりの高電位信号(回転ドラム1内の衣類が「乾き状態」)のデータ数は、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 in the rotary drum 1 are in a dry state (time t3), the resistance value 24 between the first electrodes 9 and the resistance value 25 between the second electrodes 10 are larger than the electrode detection resistance value Rd, that is, the rotation. Since it is determined that the clothes in the drum 1 are in the “dry state”, a high potential signal is input to the first resistance value detection means 18 and the second resistance value detection means 19 respectively. That is, a high potential signal per unit time (for example, 10 seconds) input from the first resistance value detection means 18 and the second resistance value detection means 19 (the clothes in the rotating drum 1 are “dry”). The number of data is larger than the electrode detection resistance value Rd determined to be in a dry state.

以上のように、回転ドラム1内の衣類に接触するように内周板8に設けられた第1の電極9および第2の電極10と、第1の電極9に接続され、第1の電極9間の抵抗値を検出する第1の抵抗値検出手段18と、第2の電極10に接続され、第2の電極10間の抵抗値を検出する第2の抵抗値検出手段19と、第1の抵抗値検出手段18および第2の抵抗値検出手段19に接続された演算手段20と、演算手段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手段21とを備え、演算手段20は、第1の抵抗値検出手段18および第2の抵抗値検出手段19から出力される複数の電極検出抵抗値24、25および複数の電極検出抵抗値24、25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ようにしたものであり、乾燥運転中に複数の電極検出信号を比較演算することにより、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 first electrode 9 and the second electrode 10 provided on the inner peripheral plate 8 so as to be in contact with the clothes in the rotary drum 1 and the first electrode 9 are connected to the first electrode 9. A first resistance value detecting means 18 for detecting a resistance value between 9, a second resistance value detecting means 19 connected to the second electrode 10 for detecting a resistance value between the second electrodes 10, A calculation means 20 connected to the first resistance value detection means 18 and the second resistance value detection means 19, and a drum rotation control means 21 for controlling the rotation of the rotary drum 1 by the output of the calculation means 20. Reference numeral 20 denotes at least one of the plurality of electrode detection resistance values 24 and 25 and the difference between the plurality of electrode detection resistance values 24 and 25 output from the first resistance value detection means 18 and the second resistance value detection means 19. By calculating one of them, the rotation drum 1 The degree of dryness of the garment is discriminated and the drying operation is automatically terminated. By comparing and calculating a plurality of electrode detection signals during the drying operation, the presence or absence of the degree of tangling of the clothes in the rotary drum 1 is determined. It is possible to detect the dry state of the clothes with high accuracy.

(実施の形態2)
図5は、本発明の第2の実施の形態における衣類乾燥機の図1のA−A矢視図である。本実施の形態の特徴は、一方の第1の電極9を、内周板8上の回転ドラム1の回転軸1aを通る水平平面ニに対して上方部に設け、他方の第2の電極10を、内周板8上の回転ドラム1の回転軸1aを通る水平平面ニに対して下方部に設けたものである。他の構成は実施の形態1と同じであり、同一の構成に同一の符号を付して、詳細な説明は実施の形態1のものを援用する。
(Embodiment 2)
FIG. 5 is an AA arrow view of FIG. 1 of the clothes dryer in the second embodiment of the present invention. The feature of the present embodiment is that one first electrode 9 is provided in an upper part with respect to a horizontal plane D passing through the rotation shaft 1a of the rotary drum 1 on the inner peripheral plate 8, and the other second electrode 10 is provided. Is provided in a lower part with respect to a horizontal plane D passing through the rotary shaft 1a of the rotary drum 1 on the inner peripheral plate 8. Other configurations are the same as those of the first embodiment, the same reference numerals are given to the same configurations, and the detailed description of the first embodiment is used.

第1の電極9および第2の電極10は、回転ドラム1の回転方向(矢印ロ方向)にずれた位置で内周板8に設けられており、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より左方または右方に配設され、互いに内周板上8に設けられる位置が回転ドラム1の回転方向に異なることにより、回転ドラム1内の衣類イが複数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。   The first electrode 9 and the second electrode 10 are provided on the inner peripheral plate 8 at a position shifted in the rotation direction (arrow B direction) of the rotary drum 1, and with respect to the rotary shaft 1 a of the rotary drum 1. The rotary drum 1 is arranged at an angle θ (for example, approximately 120 degrees) leftward or rightward of the rotary shaft 1 a and the positions provided on the inner peripheral plate 8 are different from each other in the rotational direction of the rotary drum 1. The frequencies per unit time at which the clothes A contact the plurality of pairs of electrodes are different from each other.

上記構成により、複数の一対の電極が互いに内周板8の異なる位置に設けられているため、回転ドラム1内の衣類の絡まり度合いにより、複数の一対の電極間の検出抵抗値の不均衡が発生する(複数の検出抵抗値の差分が変化する)ため、衣類の絡まりの有無を検出することができる。   With the above configuration, since the plurality of pairs of electrodes are provided at different positions on the inner peripheral plate 8, there is an imbalance in the detection resistance value between the plurality of pairs of electrodes depending on the degree of tangling of the clothing in the rotary drum 1. Since it occurs (difference between a plurality of detection resistance values changes), it is possible to detect the presence or absence of tangled clothing.

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、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 drying of the clothes in the rotating drum during the drying operation, reduce the variation in the drying rate of the clothes after drying, and efficiently Therefore, it is useful as a clothes dryer.

1 回転ドラム
2 本体
8 内周板
9 第1の電極
10 第2の電極
18 第1の抵抗値検出手段
19 第2の抵抗値検出手段
20 演算手段
21 ドラム回転制御手段
DESCRIPTION OF SYMBOLS 1 Rotating drum 2 Main body 8 Inner peripheral board 9 1st electrode 10 2nd electrode 18 1st resistance value detection means 19 2nd resistance value detection means 20 Calculation means 21 Drum rotation control means

Claims (5)

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の電極および第2の電極と、前記第1の電極に接続され、前記第1の電極間の抵抗値を検出する第1の抵抗値検出手段と、前記第2の電極に接続され、前記第2の電極間の抵抗値を検出する第2の抵抗値検出手段と、前記第1の抵抗値検出手段および前記第2の抵抗値検出手段に接続された演算手段と、前記演算手段の出力により前記回転ドラムの回転を制御するドラム回転制御手段とを備え、前記演算手段は、前記第1の抵抗値検出手段および前記第2の抵抗値検出手段から出力される複数の電極検出抵抗値および複数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し、乾燥運転を自動的に終了するようにした衣類乾燥機。 A rotating drum provided rotatably inside the main body, an inner peripheral plate provided at a front portion of the main body, and a first electrode provided on the inner peripheral plate so as to come into contact with clothing in the rotary drum And a second electrode, a first resistance value detecting means connected to the first electrode for detecting a resistance value between the first electrodes, connected to the second electrode, and the second electrode A second resistance value detecting means for detecting a resistance value between the electrodes, a computing means connected to the first resistance value detecting means and the second resistance value detecting means, and the rotation by the output of the computing means A drum rotation control means for controlling the rotation of the drum, wherein the calculation means includes a plurality of electrode detection resistance values and a plurality of electrodes output from the first resistance value detection means and the second resistance value detection means. Calculate at least one of the detected resistance difference Rukoto by the dryness degree of the clothes in the rotary drum to determine the clothes dryer to automatically terminate the drying operation. 第1の電極および第2の電極は、一方の電極を、内周板の回転ドラムの回転軸を通る垂直平面に対して左方部に設け、他方の電極を、内周板の回転ドラムの回転軸を通る垂直平面に対して右方部に設けた請求項1記載の衣類乾燥機。 For the first electrode and the second electrode, one electrode is provided on the left side with respect to a vertical plane passing through the rotation axis of the rotating drum of the inner peripheral plate, and the other electrode is provided on the rotating drum of the inner peripheral plate. The clothes dryer of Claim 1 provided in the right part with respect to the vertical plane which passes along a rotating shaft. 第1の電極および第2の電極は、一方の電極を、内周板の回転ドラムの回転軸を通る水平平面に対して上方部に設け、他方の電極を、内周板の回転ドラムの回転軸を通る水平平面に対して下方部に設けた請求項1記載の衣類乾燥機。 For the first electrode and the second electrode, one electrode is provided in an upper part with respect to a horizontal plane passing through the rotation axis of the rotating drum of the inner peripheral plate, and the other electrode is rotated by the rotating drum of the inner peripheral plate. The clothes dryer according to claim 1, wherein the clothes dryer is provided at a lower portion with respect to a horizontal plane passing through the shaft. 演算手段は、回転ドラムの回転方向に応じて、第1の抵抗値検出手段および第2の抵抗値検出手段に接続された複数の検出抵抗を切り換えるようにした請求項1〜3のいずれか1項に記載の衣類乾燥機。 The calculation means switches between a plurality of detection resistors connected to the first resistance value detection means and the second resistance value detection means in accordance with the rotation direction of the rotary drum. The clothes dryer according to item. 演算手段は、第1の抵抗値検出手段および第2の抵抗値検出手段が検出する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ようにした請求項1〜3のいずれか1項に記載の衣類乾燥機。 The computing means detects the presence or absence of tangled clothing by comparing the electrode detection resistance value detected by the first resistance value detecting means and the second resistance value detecting means with the elapsed time. The clothes dryer of any one of -3.
JP2011230483A 2011-10-20 2011-10-20 Clothing drying machine Pending JP2013085792A (en)

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