JPH04327895A - Clothes dryer - Google Patents
Clothes dryerInfo
- Publication number
- JPH04327895A JPH04327895A JP3098807A JP9880791A JPH04327895A JP H04327895 A JPH04327895 A JP H04327895A JP 3098807 A JP3098807 A JP 3098807A JP 9880791 A JP9880791 A JP 9880791A JP H04327895 A JPH04327895 A JP H04327895A
- Authority
- JP
- Japan
- Prior art keywords
- temperature
- detection means
- rate
- change
- exhaust
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000001035 drying Methods 0.000 claims abstract description 42
- 238000001514 detection method Methods 0.000 claims description 104
- 238000010438 heat treatment Methods 0.000 claims description 37
- 239000002699 waste material Substances 0.000 claims description 4
- 238000009423 ventilation Methods 0.000 claims 1
- 239000004744 fabric Substances 0.000 abstract 1
- 229920000742 Cotton Polymers 0.000 description 19
- 239000012209 synthetic fiber Substances 0.000 description 15
- 229920002994 synthetic fiber Polymers 0.000 description 15
- 238000010586 diagram Methods 0.000 description 10
- 238000010981 drying operation Methods 0.000 description 9
- 238000002485 combustion reaction Methods 0.000 description 6
- 230000002411 adverse Effects 0.000 description 4
- 230000001276 controlling effect Effects 0.000 description 3
- 238000007664 blowing Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000000835 fiber Substances 0.000 description 2
- 230000002596 correlated effect Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Detail Structures Of Washing Machines And Dryers (AREA)
- Control Of Washing Machine And Dryer (AREA)
Abstract
Description
【0001】0001
【産業上の利用分野】本発明は回転ドラム内の衣類の質
と乾燥度合に応じて加熱手段の加熱量を制御する衣類乾
燥機に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a clothes dryer that controls the amount of heating by heating means depending on the quality and degree of dryness of clothes in a rotating drum.
【0002】0002
【従来の技術】近年、衣類乾燥機は乾燥効率の向上と乾
燥時間の短縮が強く求められている。従来、この種の衣
類乾燥機は図7および図8に示すような構成が一般的で
あった。以下、その構成について説明する。BACKGROUND OF THE INVENTION In recent years, there has been a strong demand for improved drying efficiency and shorter drying time for clothes dryers. Conventionally, this type of clothes dryer generally had a configuration as shown in FIGS. 7 and 8. The configuration will be explained below.
【0003】図に示すように、機器本体1内の回転ドラ
ム2は前面をドラム前板3で回転自在に支持し、このド
ラム前板3の平面部に多数の熱風穴4を設け、バーナ5
の燃焼による熱風を燃焼筒6により熱風穴4まで導き、
回転ドラム2内に流入させる。また、回転ドラム2の後
部には送風ファン7を設け、衣類乾燥後の湿気を排気ガ
イド8を介して機器本体1の外に排出する。なお、9は
機器本体1の前面の衣類投入口を覆うドアである。As shown in the figure, a rotary drum 2 in a main body 1 is rotatably supported at its front by a drum front plate 3. A large number of hot air holes 4 are provided in the flat surface of the drum front plate 3, and a burner 5 is provided.
The hot air from the combustion of is guided to the hot air hole 4 through the combustion tube 6,
It is made to flow into the rotating drum 2. Further, a blower fan 7 is provided at the rear of the rotating drum 2 to exhaust moisture after drying the clothes to the outside of the device body 1 via an exhaust guide 8. Note that 9 is a door that covers the clothes slot on the front side of the main body 1 of the device.
【0004】ドラム前板3に電極10を固着し、この電
極10を乾燥度合検知部11に接続し、乾燥度合検知部
11は、回転ドラム2が回転することにより回転ドラム
2内の衣類が電極10に接触し、衣類の抵抗値が衣類の
乾燥度合と相関があることを利用して衣類の乾燥度合を
検知する。排気ガイド8にサーミスタ12を取りつけ、
このサーミスタ12を排気温度検知部13に接続してい
る。乾燥度合検知部11の出力と排気温度検知部13の
出力を制御部14に入力し、制御部14の出力は熱源制
御部15を介して開閉弁16を制御する。開閉弁16は
バーナ5に供給するガスの供給、停止を制御する。24
は回転ドラム2内の糸屑を回収するフィルタである。[0004] An electrode 10 is fixed to the front plate 3 of the drum, and this electrode 10 is connected to a dryness degree detecting section 11, which detects whether the clothes inside the rotary drum 2 are connected to the electrode as the rotary drum 2 rotates. 10, and the degree of dryness of the clothes is detected by utilizing the fact that the resistance value of the clothes is correlated with the degree of dryness of the clothes. Attach the thermistor 12 to the exhaust guide 8,
This thermistor 12 is connected to an exhaust temperature detection section 13. The output of the dryness degree detection section 11 and the output of the exhaust temperature detection section 13 are input to the control section 14, and the output of the control section 14 controls the on-off valve 16 via the heat source control section 15. The on-off valve 16 controls supply and stop of gas to the burner 5 . 24
is a filter that collects thread waste inside the rotating drum 2.
【0005】上記構成において動作を説明すると、衣類
を回転ドラム2に入れ回転させ、バーナ5の燃焼による
熱風を燃焼筒6を介して回転ドラム2内に流入させ、衣
類を乾燥させる。このとき衣類の乾燥率は時間とともに
図9のように変化する。一方サーミスタ12により検知
する排気ガイド8内の温度、すなわち排気温度は図10
のように変化する。排気温度がTHに達すると、制御部
14は開閉弁16をオフにしてバーナ5へのガスの供給
を停止し、排気温度がTLになると開閉弁16をオンに
してバーナ5へガスを供給し回転ドラム2へ熱風を供給
する。したがって、ガス消費量は図11に示すように排
気温度によってのみ制御されるもので、衣類の乾燥度合
には関係しない。いいかえれば、衣類に当たる熱風の温
度は常に一定で、乾燥が進行し、殆ど乾燥した状態の衣
類にも最大ガス消費量で燃焼は制御され、高温の熱風が
衣類に断続的に当たることになる。電極10により目標
の乾燥度合を検知すると、制御部14は回転ドラム2の
回転とバーナ5の燃焼を一定時間継続した後、停止する
ようにしていた。[0005] The operation of the above structure will be described. Clothes are placed in the rotary drum 2 and rotated, and hot air generated by combustion in the burner 5 is flowed into the rotary drum 2 through the combustion tube 6 to dry the clothes. At this time, the drying rate of the clothes changes over time as shown in FIG. On the other hand, the temperature inside the exhaust guide 8 detected by the thermistor 12, that is, the exhaust temperature is shown in FIG.
It changes like this. When the exhaust temperature reaches TH, the control unit 14 turns off the on-off valve 16 to stop supplying gas to the burner 5, and when the exhaust temperature reaches TL, turns on the on-off valve 16 to supply gas to the burner 5. Hot air is supplied to the rotating drum 2. Therefore, the gas consumption amount is controlled only by the exhaust temperature, as shown in FIG. 11, and is not related to the degree of dryness of the clothes. In other words, the temperature of the hot air hitting the clothes is always constant, and as drying progresses, combustion is controlled at maximum gas consumption even when the clothes are almost dry, and high-temperature hot air hits the clothes intermittently. When the target degree of dryness is detected by the electrode 10, the control unit 14 continues the rotation of the rotary drum 2 and the combustion of the burner 5 for a certain period of time, and then stops the rotation.
【0006】[0006]
【発明が解決しようとする課題】このような従来の衣類
乾燥機では、バーナ5をオン、オフ制御をするため、熱
量の調整範囲が限られたものであり、温度調節動作時の
非燃焼時間の増加で乾燥時間が長くなるという問題を有
しており、また、乾燥率が100%付近の殆ど乾燥した
状態で衣類に高温の熱風が当たり、衣類の収縮、傷みを
起こすという問題を有していた。また、衣類の種類(木
綿、化繊など)のフィードバックがなく、衣類の種類、
乾燥状態に応じた熱量制御ができないものであり、具体
的には、温度調節温度を比較的熱に強く、乾燥しにくい
木綿に合わせて設定すると、化繊類は縮み、傷みなどの
悪影響がでる。逆に、化繊に合わせて温度調節温度を低
く設定すると、木綿類は温度調節動作回数の増加で乾燥
時間が増加するという問題を有していた。[Problems to be Solved by the Invention] In such conventional clothes dryers, the burner 5 is controlled on and off, so the adjustment range of heat amount is limited, and the non-burning time during temperature adjustment operation is limited. There is a problem that drying time becomes longer due to an increase in the drying rate.Also, when the drying rate is around 100% and the clothes are almost dry, high-temperature hot air hits the clothes, causing shrinkage and damage. was. In addition, there is no feedback on the type of clothing (cotton, synthetic fibers, etc.);
It is not possible to control the amount of heat depending on the drying state, and specifically, if the temperature adjustment temperature is set to match cotton, which is relatively heat resistant and difficult to dry, synthetic fibers will shrink and have negative effects such as damage. On the other hand, if the temperature adjustment temperature is set low in accordance with synthetic fibers, cotton has a problem in that the drying time increases due to the increase in the number of temperature adjustment operations.
【0007】本発明は上記課題を解決するもので、衣類
の種類、乾燥度合に応じて衣類が熱風による悪影響を受
けない最大熱量を常に制御し、多用化した衣類において
も衣類を傷めることなく、かつ乾燥時間を短縮させるこ
とを目的としている。The present invention solves the above problems by constantly controlling the maximum amount of heat at which clothes are not adversely affected by hot air, depending on the type of clothes and degree of dryness, and without damaging the clothes even when the clothes are used a lot. The purpose is to shorten the drying time.
【0008】[0008]
【課題を解決するための手段】本発明は上記目的を達成
するために、衣類を出し入れするためのドアの開閉状態
を検知するドア開閉検知手段と、衣類を収容する回転ド
ラム内に熱風を供給する加熱手段と、前記加熱手段の加
熱量を調整する加熱制御手段と、前記回転ドラム内の衣
類の乾燥度合を検知する乾燥度合検知手段と、前記回転
ドラムから排出される排気温度を検出する排気温度検知
手段と、前記排気温度検知手段の出力より排気温度の変
化率を検知する排気温度変化率検知手段と、前記乾燥度
合検知手段の出力と排気温度変化率検知手段の出力を入
力し、前記乾燥度合検知手段が所定の乾燥率を検知する
までの時間と前記排気温度変化率検知手段からの温度変
化率に応じて、前記回転ドラムに供給する熱量を小方向
に変化を開始する時刻と熱量変化率を決定し、前記加熱
制御手段を制御する制御手段を備え、前記制御手段は、
ドア開閉後の乾燥再開時に前記排気温度検知手段で検知
する温度が、前記ドア開閉検知手段でドア開を検知した
ときの前記排気温度検知手段の出力温度に達するまでは
、前記排気温度変化率検知手段からの温度変化率データ
を無視する衣類乾燥機としたことを第1の課題解決手段
としている。[Means for Solving the Problems] In order to achieve the above objects, the present invention provides door opening/closing detection means for detecting the opening/closing state of a door for taking in and taking out clothes, and supplying hot air into a rotating drum that accommodates clothes. heating means for adjusting the heating amount of the heating means; dryness degree detection means for detecting the degree of dryness of clothing in the rotating drum; and exhaust gas for detecting the temperature of exhaust gas discharged from the rotating drum. a temperature detection means, an exhaust temperature change rate detection means for detecting a rate of change in exhaust gas temperature from the output of the exhaust temperature detection means, an output of the dryness degree detection means and an output of the exhaust temperature change rate detection means; The time and amount of heat at which the amount of heat supplied to the rotary drum starts to be changed in a smaller direction according to the time until the degree of dryness detection means detects a predetermined drying rate and the rate of temperature change from the rate of change in exhaust temperature temperature detection means. comprising a control means for determining a rate of change and controlling the heating control means, the control means comprising:
The rate of change in exhaust gas temperature is detected until the temperature detected by the exhaust temperature detection means when drying resumes after opening and closing the door reaches the output temperature of the exhaust temperature detection means when the door opening/closing detection means detects the opening of the door. The first means of solving the problem is to create a clothes dryer that ignores temperature change rate data from the means.
【0009】また、衣類を収容する回転ドラム内に熱風
を供給する加熱手段と、前記加熱手段の加熱量を調整す
る加熱制御手段と、前記回転ドラム内の糸屑を回収する
フィルタの目詰まりを検知する目詰まり検知手段と、前
記回転ドラム内の衣類の乾燥度合を検知する乾燥度合検
知手段と、前記回転ドラムから排出される排気温度を検
出する排気温度検知手段と、前記排気温度検知手段の出
力より排気温度の変化率を検知する排気温度変化率検知
手段と、前記乾燥度合検知手段の出力と排気温度変化率
検知手段の出力を入力し、前記乾燥度合検知手段が所定
の乾燥率を検知するまでの時間と前記排気温度変化率検
知手段からの温度変化率に応じて、前記回転ドラムに供
給する熱量を小方向に変化を開始する時刻と熱量変化率
を決定し、前記加熱制御手段を制御する制御手段を備え
、前記制御手段は、目詰まりを検知した後の送風運転中
、および目詰まり状態が解消された後の乾燥再開時に前
記排気温度検知手段で検知する温度が、前記目詰まり検
知手段で目詰まりを検知したときの前記排気温度検知手
段の出力温度に達するまでは、前記排気温度変化率検知
手段からの温度変化率データを無視する衣類乾燥機とし
たことを第2の課題解決手段としている。[0009] The present invention also includes a heating means for supplying hot air into the rotating drum for storing clothes, a heating control means for adjusting the heating amount of the heating means, and a filter for collecting thread waste in the rotating drum. clogging detection means for detecting clogging; dryness degree detection means for detecting the degree of dryness of clothes in the rotating drum; exhaust temperature detection means for detecting the temperature of exhaust gas discharged from the rotation drum; Exhaust temperature change rate detection means detects the rate of change in exhaust temperature from the output; the output of the dryness degree detection means and the output of the exhaust temperature change rate detection means are input, and the dryness degree detection means detects a predetermined dryness rate. A time and a rate of change in the amount of heat to be supplied to the rotating drum are determined in accordance with the time until the change in temperature and the rate of change in the amount of heat supplied to the rotating drum are determined in accordance with the rate of change in temperature from the rate of change in temperature detected by the rate of change in the exhaust gas temperature, and the rate of change in the amount of heat is determined by The control means is configured to control the temperature detected by the exhaust temperature detection means during the air blowing operation after detecting clogging and when restarting drying after the clogging state is eliminated. A second object of the present invention is to provide a clothes dryer that ignores temperature change rate data from the exhaust temperature change rate detection means until the output temperature of the exhaust gas temperature detection means is reached when clogging is detected by the detection means. It is used as a solution.
【0010】0010
【作用】本発明は上記した課題解決手段により、乾燥度
合検知手段が所定の乾燥率を検知するまでの時間と、排
気温度変化率検知手段からの温度変化率により衣類の量
と質を推定、判別でき、運転途中で使用者がドアを開け
閉めしても、衣類の量と質に応じて熱量を制御して、衣
類を傷めることなく、かつ乾燥時間を短縮させることが
できる。また運転途中でフィルタが目詰まりしても、同
様に衣類を傷めることなく、かつ乾燥時間を短縮させる
ことができる。[Operation] The present invention uses the above problem solving means to estimate the quantity and quality of clothing based on the time taken by the dryness degree detection means to detect a predetermined dryness rate and the temperature change rate from the exhaust temperature change rate detection means. Even if the user opens or closes the door during driving, the amount of heat can be controlled according to the quantity and quality of the clothes, so that the clothes are not damaged and the drying time can be shortened. Furthermore, even if the filter becomes clogged during operation, the clothes will not be damaged and the drying time can be shortened.
【0011】[0011]
【実施例】以下、本発明の一実施例を図1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。Embodiment An embodiment of the present invention will be described below with reference to FIG. Note that components having the same configuration as those of the conventional example are given the same reference numerals, and description thereof will be omitted.
【0012】図に示すように、バーナ(加熱手段)5は
回転ドラム内に熱風を供給する。比例制御弁(加熱制御
手段)17は入力電流によってバーナ5に供給するガス
量を制御するものである。乾燥度合検知部(乾燥度合検
知手段)18は電極10に接続し、回転ドラム内の衣類
の乾燥度合を検知するもので、電極10間の抵抗値の単
位時間当りの変化をとらえ、乾燥度合を検知できるよう
にしている。この乾燥度合の判定は、それぞれの設定抵
抗のしきい値以上になったことで判断する。排気温度変
化率検知部(排気温度変化率検知手段)19は、排気温
度検知部(排気温度検知手段)13の出力を入力し、排
気温度の変化率を検知する。制御部(制御手段)20は
マイクロコンピュータなどで構成し、乾燥度合検知部1
8の出力と排気温度変化率検知部19の出力、ドア9の
開閉状態を検知するドア開閉検知部22の出力、フィル
タ24の目詰まり状態を検知する目詰まり検知部23の
出力とを入力し、熱源制御部21を介して比例制御弁1
7を制御するもので、乾燥度合検知部18が所定の乾燥
率を検知するまでの時間と排気温度変化率検知部19か
らの温度変化率に応じて、回転ドラム2に供給する熱量
を小方向に変化を開始する時刻と熱量変化率を決定し、
比例制御弁17を制御するようにしている。As shown in the figure, a burner (heating means) 5 supplies hot air into the rotating drum. The proportional control valve (heating control means) 17 controls the amount of gas supplied to the burner 5 by input current. The degree of dryness detection section (degree of dryness detection means) 18 is connected to the electrode 10 and detects the degree of dryness of the clothes in the rotating drum.It detects the change in resistance value between the electrodes 10 per unit time and detects the degree of dryness. It makes it possible to detect it. The degree of dryness is determined based on whether the resistance has exceeded the threshold value of each set resistance. The exhaust gas temperature change rate detection section (exhaust gas temperature change rate detection means) 19 receives the output of the exhaust gas temperature detection section (exhaust gas temperature detection means) 13 and detects the change rate of the exhaust gas temperature. The control unit (control means) 20 is composed of a microcomputer, etc., and is connected to the dryness level detection unit 1
8, the output of the exhaust temperature change rate detection section 19, the output of the door opening/closing detection section 22 that detects the open/closed state of the door 9, and the output of the clogging detection section 23 that detects the clogging state of the filter 24. , the proportional control valve 1 via the heat source control section 21
7, the amount of heat supplied to the rotating drum 2 is reduced in accordance with the time until the dryness degree detection section 18 detects a predetermined dryness rate and the temperature change rate from the exhaust temperature change rate detection section 19. Determine the time when the change starts and the rate of heat change,
A proportional control valve 17 is controlled.
【0013】上記構成において図2から図4を参照しな
がら動作を説明すると、図2から図4の各図の実線(A
)は化繊が混合された衣類(以下、化繊類という)の特
性を示しており、破線(B)は木綿の比率が多い衣類(
以下、木綿類という)の特性を示している。すなわち、
乾燥率は図2のように、木綿類(B)は繊維内に含む水
分量が多いため乾燥しにくく、化繊類(A)の場合と比
較して同じ衣類の量であっても乾燥率の上昇は低く、乾
燥終了までの時間は長くなる。また、熱風による衣類へ
の悪影響が出る乾燥率は、繊維内の含水量の差により木
綿類の方が高い。したがって、木綿類が多い場合は、同
じ乾燥率であっても大きな熱量を投入できる。一方、排
気温度は図3に示すように、木綿の比率が高くなるにつ
れて温度変化率が小さい恒率乾燥区間が現れる。
したがって、排気温度変化率の大小によって木綿比率を
推定できる。The operation of the above configuration will be explained with reference to FIGS. 2 to 4. The solid line (A
) indicates the characteristics of clothing mixed with synthetic fibers (hereinafter referred to as synthetic fibers), and the broken line (B) indicates the characteristics of clothing with a high proportion of cotton (hereinafter referred to as synthetic fibers).
The characteristics of cotton (hereinafter referred to as cotton) are shown below. That is,
The drying rate is as shown in Figure 2. Cotton (B) is difficult to dry because it contains a large amount of water in its fibers, and the drying rate is lower than that of synthetic fibers (A) even for the same amount of clothing. The rise will be low and the time until drying will be completed will be long. In addition, the drying rate at which hot air has an adverse effect on clothing is higher for cotton products due to the difference in moisture content within the fibers. Therefore, if there is a large amount of cotton, a large amount of heat can be input even if the drying rate is the same. On the other hand, as for the exhaust temperature, as shown in FIG. 3, as the cotton ratio increases, a constant rate drying section appears where the rate of temperature change is small. Therefore, the cotton ratio can be estimated based on the magnitude of the exhaust gas temperature change rate.
【0014】このような考え方に基づいて、本実施例で
は、乾燥度合検知部11は化繊類が最大熱量時の高温の
熱風でも影響を受けない所定の乾燥率を時間Tで検出す
ると、制御部14は同時間T時の排気温度変化率検知部
19の出力により、排気温度変化率が比較的大きいθ1
の場合は化繊類であると推定し、比較的小さいθ2の場
合は木綿類であると推定する。その結果、木綿比率が少
ない化繊類では、乾燥度合検知部18が所定の乾燥率を
検知するまでの時間Tと排気温度変化率θ1から、熱量
を小方向に変化を開始する時刻T1とその後の熱量変化
率φ1を決定する。また、木綿類では、所定の乾燥率に
達する時間Tが同じであっても、排気温度変化率θ2の
値に応じて熱量を小方向に変化を開始する時刻T2を長
くし、熱量変化率φ2を大きく決定する。したがって、
衣類を傷めることなく、同時に最大熱量時間が長いため
乾燥時間を短縮できる。Based on this idea, in this embodiment, when the dryness degree detection section 11 detects a predetermined drying rate at a time T that is not affected by the high-temperature hot air when the synthetic fiber has the maximum amount of heat, the control section 14 indicates θ1 where the exhaust gas temperature change rate is relatively large, based on the output of the exhaust gas temperature change rate detection unit 19 at the same time T.
If θ2 is relatively small, it is estimated to be a synthetic fiber, and if θ2 is relatively small, it is estimated to be a cotton material. As a result, for synthetic fibers with a low cotton ratio, based on the time T until the dryness degree detection unit 18 detects a predetermined dryness rate and the exhaust gas temperature change rate θ1, it is found that the time T1 when the heat amount starts to change in the smaller direction and the time after that Determine the rate of change in heat amount φ1. In addition, for cotton, even if the time T to reach a predetermined drying rate is the same, the time T2 at which the heat quantity starts to change in a smaller direction according to the value of the exhaust temperature change rate θ2 is lengthened, and the heat quantity change rate φ2 to a large extent. therefore,
It does not damage clothes and at the same time shortens drying time due to the long maximum heat output time.
【0015】上述のように、化繊類が多いか木綿類が多
いかを区別して、比例制御弁17によってガス消費量を
制御する衣類乾燥機において、運転途中に使用者がドア
を開けた場合について5図を用いて説明する。5図は排
気温度検知部13で検知する温度Thの経時変化を示し
ており、T2でドアが開けられて乾燥運転を停止し、T
4でドアが閉められて乾燥運転を再開し、T4でドア開
時の温度Tdに復帰したことを表している。制御部20
はドアが開けられた瞬間のThをTdとして記憶し、ド
アが閉められて乾燥運転を再開しても、Thがドア開時
の温度Tdに復帰するまでは、排気温度変化率検知部1
9からの温度変化率データを無視するようにしている。
すなわち木綿類が多い乾燥運転において、ドア開閉によ
る大きい温度変化率により化繊類が多いと誤判定するこ
とを防ぐためである。As described above, in a clothes dryer that controls gas consumption by the proportional control valve 17 depending on whether the clothes are made of mostly synthetic fibers or cotton, what happens when the user opens the door during operation? This will be explained using Figure 5. Figure 5 shows the change over time in the temperature Th detected by the exhaust temperature detection unit 13. At T2, the door is opened and the drying operation is stopped, and at T2, the drying operation is stopped.
At 4, the door is closed and the drying operation is restarted, and at T4, the temperature has returned to the temperature Td when the door was opened. Control unit 20
stores Th at the moment the door is opened as Td, and even if the door is closed and the drying operation is restarted, the exhaust temperature change rate detection unit 1 remains unchanged until Th returns to the temperature Td at the time the door was opened.
The temperature change rate data from 9 is ignored. In other words, this is to prevent erroneously determining that there is a large amount of synthetic fibers due to a large rate of temperature change due to opening and closing of the door in a drying operation where there is a large amount of cotton.
【0016】また運転途中にフィルタ目詰まりが発生し
た場合について、6図を用いて説明する。6図は排気温
度検知部13で検知する温度Thの経時変化を示してお
り、T5で制御部20は目詰まり検知部23がフィルタ
目詰まりを検知して乾燥運転を停止し、T6で目詰まり
状態が解消されて乾燥運転を再開し、T7でフィルタ目
詰まりを検知した瞬間の温度Tmに復帰したことを表し
ている。制御部20はフィルタが目詰まりした瞬間のT
hをTmとして記憶し、目詰まり状態が解消されて乾燥
運転を再開しても、Thがフィルタが目詰まりした瞬間
の温度Tmに復帰するまでは、排気温度変化率検知部1
9からの温度変化率データを無視するようにしている。
すなわち木綿類が多い乾燥運転において、フィルタ目詰
まりが発生した場合の大きい温度変化率により、化繊類
が多いと誤判定することを防ぐためである。Further, the case where filter clogging occurs during operation will be explained using FIG. 6. Figure 6 shows the change over time in the temperature Th detected by the exhaust temperature detection section 13. At T5, the control section 20 stops the drying operation when the clogging detection section 23 detects the filter clogging, and at T6, the control section 20 detects the clogging. This indicates that the condition has been resolved, the drying operation has resumed, and the temperature has returned to the temperature Tm at the moment when filter clogging was detected at T7. The control unit 20 controls T at the moment the filter becomes clogged.
Even if h is memorized as Tm and the clogging condition is resolved and the drying operation is resumed, the exhaust temperature change rate detection unit 1 remains unchanged until Th returns to the temperature Tm at the moment the filter became clogged.
The temperature change rate data from 9 is ignored. In other words, this is to prevent erroneously determining that there is a large amount of synthetic fibers due to a large rate of temperature change when the filter is clogged in a drying operation where the amount of cotton is large.
【0017】なお、上記実施例は加熱手段にバーナ5を
使用し、比例制御弁17によってガス消費量を制御する
ようにしているが、加熱手段にヒータなどを使用して電
力量を制御するようにしてもよい。また、上記実施例で
は、乾燥度合検知の一手段として、回転ドラム2内の電
極10間の抵抗変化で行っているが、排気温度または湿
度の変化などを利用してもよく、要は、回転ドラム2内
の衣類の乾燥状態を把握できればよい。In the above embodiment, the burner 5 is used as the heating means, and the gas consumption is controlled by the proportional control valve 17. You may also do so. Furthermore, in the above embodiment, one means of detecting the degree of dryness is the change in resistance between the electrodes 10 in the rotating drum 2, but changes in the exhaust temperature or humidity may also be used. It is sufficient if the drying state of the clothes in the drum 2 can be ascertained.
【0018】[0018]
【発明の効果】以上の実施例から明らかなように本発明
によれば、衣類を出し入れするためのドアの開閉状態を
検知するドア開閉検知手段と、衣類を収容し乾燥する回
転ドラム内に熱風を供給する加熱手段と、前記加熱手段
の加熱量を調整する加熱制御手段と、前記回転ドラム内
の衣類の乾燥度合を検知する乾燥度合検知手段と、前記
回転ドラムから排出される排気温度を検出する排気温度
検知手段と、前記排気温度検知手段の出力より排気温度
の変化率を検知する排気温度変化率検知手段と、前記乾
燥度合検知手段の出力と排気温度変化率検知手段の出力
を入力し、前記乾燥度合検知手段が所定の乾燥率を検知
するまでの時間と前記排気温度変化率検知手段からの温
度変化率に応じて、前記回転ドラムに供給する熱量を小
方向に変化を開始する時刻と熱量変化率を決定し、前記
加熱制御手段を制御する制御手段を備え、前記制御手段
は、ドア開閉後の乾燥再開時に前記排気温度検知手段で
検知する温度が、前記ドア開閉検知手段でドア開を検知
したときの前記排気温度検知手段の出力温度に達するま
では、前記排気温度変化率検知手段からの温度変化率デ
ータを無視する衣類乾燥機としたから、衣類の量および
種類、乾燥度合に応じて衣類が熱風による悪影響を受け
ない最大熱量を常に制御することができ、多用化した衣
類においても衣類を傷めることなく、かつ乾燥時間を短
縮させることができ、また、衣類の乾燥度合に応じて加
熱手段の熱量を徐々に低減することで温度調節動作をす
ることがなく、乾燥効率を向上できる。さらに運転中に
ドアが開けられても、それを正確に検知して、木綿類が
多い場合に化繊類が多いと誤判定することもない。As is clear from the above embodiments, according to the present invention, there is provided a door opening/closing detection means for detecting the opening/closing state of the door for taking clothes in and out, and a hot air blower in the rotating drum for storing and drying clothes. heating means for supplying the heating means, heating control means for adjusting the heating amount of the heating means, dryness degree detection means for detecting the degree of dryness of the clothes in the rotary drum, and detecting the temperature of the exhaust gas discharged from the rotary drum. an exhaust gas temperature detection means for detecting a rate of change in exhaust gas temperature from the output of the exhaust temperature detection means; an output of the degree of dryness detection means and an output of the exhaust temperature change rate detection means; , a time at which the amount of heat supplied to the rotating drum starts to be changed in a smaller direction according to the time until the dryness degree detection means detects a predetermined dryness rate and the temperature change rate from the exhaust temperature change rate detection means; and a control means for controlling the heating control means, and the control means is configured to determine the temperature detected by the exhaust temperature detection means when drying is resumed after the door is opened/closed, and the temperature detected by the exhaust temperature detection means to be detected by the door opening/closing detection means. Since the clothes dryer ignores the temperature change rate data from the exhaust temperature change rate detection means until the output temperature of the exhaust temperature detection means reaches the output temperature of the exhaust temperature detection means when the opening is detected, the amount and type of clothes and the degree of dryness are It is possible to constantly control the maximum amount of heat at which clothing will not be adversely affected by hot air, and even if the clothing is used a lot, it will not damage the clothing, and the drying time can be shortened. By gradually reducing the amount of heat of the heating means accordingly, the drying efficiency can be improved without performing a temperature adjustment operation. Furthermore, even if the door is opened while driving, it will be accurately detected, and if there is a lot of cotton, it will not be mistakenly determined to be a lot of synthetic fibers.
【0019】また、衣類を収容し乾燥する回転ドラム内
に熱風を供給する加熱手段と、前記加熱手段の加熱量を
調整する加熱制御手段と、前記回転ドラム内の糸屑を回
収するフィルタの目詰まりを検知する目詰まり検知手段
と、前記回転ドラム内の衣類の乾燥度合を検知する乾燥
度合検知手段と、前記回転ドラムから排出される排気温
度を検出する排気温度検知手段と、前記排気温度検知手
段の出力より排気温度の変化率を検知する排気温度変化
率検知手段と、前記乾燥度合検知手段の出力と排気温度
変化率検知手段の出力を入力し、前記乾燥度合検知手段
が所定の乾燥率を検知するまでの時間と前記排気温度変
化率検知手段からの温度変化率に応じて、前記回転ドラ
ムに供給する熱量を小方向に変化を開始する時刻と熱量
変化率を決定し、前記加熱制御手段を制御する制御手段
を備え、前記制御手段は、目詰まりを検知した後の送風
運転中、および目詰まり状態が解消された後の乾燥再開
時に前記排気温度検知手段で検知する温度が、前記目詰
まり検知手段で目詰まりを検知したときの前記排気温度
検知手段の出力温度に達するまでは、前記排気温度変化
率検知手段からの温度変化率データを無視する衣類乾燥
機としたことにより、衣類の量および種類、乾燥度合に
応じて衣類が熱風による悪影響を受けない最大熱量を常
に制御することができ、多用化した衣類においても衣類
を傷めることなく、かつ乾燥時間を短縮させることがで
き、また、衣類の乾燥度合に応じて加熱手段の熱量を徐
々に低減することで温度調節動作をすることがなく、乾
燥効率を向上できる。さらに運転中にフィルタの目詰ま
りが発生しても、それを正確に検知して、木綿類が多い
場合に化繊類が多いと誤判定することもない。[0019] The invention also includes a heating means for supplying hot air into the rotating drum for storing and drying clothes, a heating control means for adjusting the heating amount of the heating means, and a filter eye for collecting waste lint in the rotating drum. clogging detection means for detecting clogging; dryness degree detection means for detecting the degree of dryness of clothes in the rotating drum; exhaust temperature detection means for detecting the temperature of exhaust gas discharged from the rotation drum; Exhaust temperature change rate detection means detects the rate of change in exhaust gas temperature from the output of the means; the output of the dryness degree detection means and the output of the exhaust temperature change rate detection means are input, and the dryness degree detection means detects a predetermined drying rate. The time and rate of change in heat amount to start changing the amount of heat supplied to the rotating drum in a smaller direction are determined according to the time until detection and the rate of change in temperature from the exhaust gas temperature change rate detection means, and the heating control is performed. The control means is configured to control the temperature detected by the exhaust temperature detection means during air blowing operation after detecting clogging and when restarting drying after the clogging state is eliminated. The clothes dryer ignores the temperature change rate data from the exhaust temperature change rate detection means until the output temperature of the exhaust temperature detection means reaches the temperature when the clogging detection means detects clogging. It is possible to constantly control the maximum amount of heat at which clothing will not be adversely affected by hot air, depending on the amount and type of hot air and the degree of drying, and the drying time can be shortened without damaging clothing even when the clothing is used a lot. Further, by gradually reducing the amount of heat of the heating means according to the degree of dryness of the clothes, there is no need to perform a temperature adjustment operation, and the drying efficiency can be improved. Furthermore, even if the filter becomes clogged during operation, it can be accurately detected and there is no possibility of erroneously determining that there is a large amount of synthetic fibers when there is a large amount of cotton.
【図1】本発明の一実施例の衣類乾燥機のブロック図FIG. 1 is a block diagram of a clothes dryer according to an embodiment of the present invention.
【
図2】同衣類乾燥機の乾燥率変化特性図[
Figure 2: Drying rate change characteristic diagram of the clothes dryer
【図3】同衣類
乾燥機の排気温度変化特性図[Figure 3] Exhaust temperature change characteristic diagram of the clothes dryer
【図4】同衣類乾燥機のガ
ス消費量変化特性図[Figure 4] Gas consumption change characteristic diagram of the clothes dryer
【図5】同衣類乾燥機のドア開時の
排気温度変化特性図[Figure 5] Exhaust temperature change characteristic diagram when the door of the clothes dryer is opened
【図6】同衣類乾燥機のフィルタ目
詰まり時の排気温度変化特性図[Figure 6] Exhaust temperature change characteristic diagram when the filter of the clothes dryer is clogged
【図7】従来の衣類乾燥機の縦断面図[Figure 7] Longitudinal cross-sectional view of a conventional clothes dryer
【図8】同衣類乾燥機のブロック図[Figure 8] Block diagram of the clothes dryer
【図9】同衣類乾燥機の乾燥率変化特性図[Figure 9] Drying rate change characteristic diagram of the clothes dryer
【図10】同
衣類乾燥機の排気温度変化特性図[Figure 10] Exhaust temperature change characteristic diagram of the clothes dryer
【図11】同衣類乾燥
機のガス消費量変化特性図[Figure 11] Gas consumption change characteristic diagram of the clothes dryer
5 バーナ(加熱手段)
17 比例制御弁(加熱制御手段)
18 乾燥度合検知部(抵抗検知手段)19 排気
温度変化率検知部(排気温度変化率検知手段)
20 制御部(制御手段)5 Burner (heating means) 17 Proportional control valve (heating control means) 18 Dryness degree detection section (resistance detection means) 19 Exhaust gas temperature change rate detection section (exhaust temperature change rate detection means) 20 Control section (control means)
Claims (2)
状態を検知するドア開閉検知手段と、衣類を収容する回
転ドラム内に熱風を供給する加熱手段と、前記加熱手段
の加熱量を調整する加熱制御手段と、前記回転ドラム内
の衣類の乾燥度合を検知する乾燥度合検知手段と、前記
回転ドラムから排出される排気温度を検出する排気温度
検知手段と、前記排気温度検知手段の出力より排気温度
の変化率を検知する排気温度変化率検知手段と、前記乾
燥度合検知手段の出力と排気温度変化率検知手段の出力
を入力し、前記乾燥度合検知手段が所定の乾燥率を検知
するまでの時間と前記排気温度変化率検知手段からの温
度変化率に応じて、前記回転ドラムに供給する熱量を小
方向に変化を開始する時刻と熱量変化率を決定し、前記
加熱制御手段を制御する制御手段を備え、前記制御手段
は、ドア開閉後の乾燥再開時に前記排気温度検知手段で
検知する温度が、前記ドア開閉検知手段でドア開を検知
したときの前記排気温度検知手段の出力温度に達するま
では、前記排気温度変化率検知手段からの温度変化率デ
ータを無視する衣類乾燥機。1. Door opening/closing detection means for detecting the open/closed state of a door for taking clothes in and out; heating means for supplying hot air into a rotating drum that accommodates clothes; and heating means for adjusting the heating amount of the heating means. a control means, a dryness degree detection means for detecting the degree of dryness of clothes in the rotating drum, an exhaust temperature detection means for detecting the temperature of exhaust gas discharged from the rotation drum, and an exhaust temperature detection means based on the output of the exhaust temperature detection means. an exhaust gas temperature change rate detection means for detecting the rate of change of the exhaust gas temperature change rate, and inputting the output of the dryness degree detection means and the output of the exhaust gas temperature change rate detection means, and the time until the dryness degree detection means detects a predetermined dryness rate. and control means for controlling the heating control means by determining a time and a rate of change in the amount of heat to start changing the amount of heat supplied to the rotating drum in a smaller direction in accordance with the rate of change in temperature from the rate of change in temperature from the exhaust gas temperature change rate detection means. The control means controls the temperature until the temperature detected by the exhaust temperature detection means when drying is resumed after the door is opened and closed reaches the output temperature of the exhaust temperature detection means when the door opening/closing detection means detects that the door is opened. The clothes dryer ignores temperature change rate data from the exhaust temperature change rate detection means.
供給する加熱手段と、前記加熱手段の加熱量を調整する
加熱制御手段と、前記回転ドラム内の糸屑を回収するフ
ィルタの目詰まりを検知する目詰まり検知手段と、前記
回転ドラム内の衣類の乾燥度合を検知する乾燥度合検知
手段と、前記回転ドラムから排出される排気温度を検出
する排気温度検知手段と、前記排気温度検知手段の出力
より排気温度の変化率を検知する排気温度変化率検知手
段と、前記乾燥度合検知手段の出力と排気温度変化率検
知手段の出力を入力し、前記乾燥度合検知手段が所定の
乾燥率を検知するまでの時間と前記排気温度変化率検知
手段からの温度変化率に応じて、前記回転ドラムに供給
する熱量を小方向に変化を開始する時刻と熱量変化率を
決定し、前記加熱制御手段を制御する制御手段を備え、
前記制御手段は、目詰まりを検知した後の送風運転中、
および目詰まり状態が解消された後の乾燥再開時に前記
排気温度検知手段で検知する温度が、前記目詰まり検知
手段で目詰まりを検知したときの前記排気温度検知手段
の出力温度に達するまでは、前記排気温度変化率検知手
段からの温度変化率データを無視する衣類乾燥機。2. A heating device for supplying hot air into a rotating drum that accommodates clothing, a heating control device that adjusts the amount of heating by the heating device, and a filter that collects waste lint in the rotating drum. clogging detection means for detecting clogging; dryness degree detection means for detecting the degree of dryness of clothes in the rotating drum; exhaust temperature detection means for detecting the temperature of exhaust gas discharged from the rotation drum; Exhaust temperature change rate detection means detects the rate of change in exhaust temperature from the output; the output of the dryness degree detection means and the output of the exhaust temperature change rate detection means are input, and the dryness degree detection means detects a predetermined dryness rate. A time and a rate of change in the amount of heat to be supplied to the rotating drum are determined in accordance with the time until the change in temperature and the rate of change in the amount of heat supplied to the rotating drum are determined in accordance with the rate of change in temperature from the rate of change in temperature detected by the rate of change in the exhaust gas temperature, and the rate of change in the amount of heat is determined by comprising control means for controlling;
During the ventilation operation after detecting clogging, the control means
and until the temperature detected by the exhaust temperature detection means when drying is restarted after the clogging condition is eliminated reaches the output temperature of the exhaust temperature detection means when the clogging detection means detects clogging. A clothes dryer that ignores temperature change rate data from the exhaust temperature change rate detection means.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP3098807A JP2946814B2 (en) | 1991-04-30 | 1991-04-30 | Clothes dryer |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP3098807A JP2946814B2 (en) | 1991-04-30 | 1991-04-30 | Clothes dryer |
Publications (2)
Publication Number | Publication Date |
---|---|
JPH04327895A true JPH04327895A (en) | 1992-11-17 |
JP2946814B2 JP2946814B2 (en) | 1999-09-06 |
Family
ID=14229612
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP3098807A Expired - Lifetime JP2946814B2 (en) | 1991-04-30 | 1991-04-30 | Clothes dryer |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP2946814B2 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US9080283B2 (en) | 2011-10-06 | 2015-07-14 | Whirlpool Corporation | Method to control a drying cycle of a laundry treating appliance |
-
1991
- 1991-04-30 JP JP3098807A patent/JP2946814B2/en not_active Expired - Lifetime
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US9080283B2 (en) | 2011-10-06 | 2015-07-14 | Whirlpool Corporation | Method to control a drying cycle of a laundry treating appliance |
Also Published As
Publication number | Publication date |
---|---|
JP2946814B2 (en) | 1999-09-06 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
KR101253641B1 (en) | Dryer and the control method of the same | |
US7644513B2 (en) | Laundry dryer and method for controlling drying course of the same | |
EP2116647B1 (en) | Laundry dryer or washing/drying machine | |
JP2008246219A (en) | Laundry drier and its drying control method | |
JPS626836B2 (en) | ||
JPH0453558B2 (en) | ||
US5301438A (en) | Drying machine | |
WO2013011606A1 (en) | Drum washing machine | |
EP1852533B1 (en) | Steam supplying method and treatment apparatus | |
JPH0747195A (en) | Drum type washing/drying machine | |
JP2000229200A (en) | Clothing drying machine | |
KR100739202B1 (en) | A dryer with an aromatic | |
JPH04327895A (en) | Clothes dryer | |
JPH04300597A (en) | Clothes drier | |
KR102490844B1 (en) | Control method for drying machine | |
JP2946813B2 (en) | Clothes dryer | |
KR101168888B1 (en) | Method for compensating electric power interrruption in clothes dryer | |
JP2940202B2 (en) | Clothes dryer | |
JP2002224499A (en) | Gas clothes drier | |
JP3684916B2 (en) | Clothes dryer | |
JP2940201B2 (en) | Clothes dryer | |
JP2940200B2 (en) | Clothes dryer | |
KR20020062445A (en) | An apparatus and a method for sensing a dryness rate for condensing type dryer | |
JP2004159859A (en) | Clothes dryer | |
WO2019206012A1 (en) | Laundry care method for laundry treatment apparatus, and laundry treatment apparatus |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20070702 Year of fee payment: 8 |
|
FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20080702 Year of fee payment: 9 |
|
FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20090702 Year of fee payment: 10 |
|
FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20100702 Year of fee payment: 11 |