JP5250581B2 - Clothes dryer - Google Patents
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- JP5250581B2 JP5250581B2 JP2010089539A JP2010089539A JP5250581B2 JP 5250581 B2 JP5250581 B2 JP 5250581B2 JP 2010089539 A JP2010089539 A JP 2010089539A JP 2010089539 A JP2010089539 A JP 2010089539A JP 5250581 B2 JP5250581 B2 JP 5250581B2
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- 238000001035 drying Methods 0.000 claims description 37
- 239000007789 gas Substances 0.000 claims description 30
- 239000000567 combustion gas Substances 0.000 claims description 27
- 230000003068 static effect Effects 0.000 claims description 25
- 230000005611 electricity Effects 0.000 claims description 24
- 238000010981 drying operation Methods 0.000 claims description 8
- 238000003756 stirring Methods 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 9
- -1 ion hydrogen ions Chemical class 0.000 description 4
- 238000012544 monitoring process Methods 0.000 description 3
- 239000004094 surface-active agent Substances 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 238000007791 dehumidification Methods 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000001257 hydrogen Substances 0.000 description 2
- 229910052739 hydrogen Inorganic materials 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 150000002500 ions Chemical class 0.000 description 2
- 238000005507 spraying Methods 0.000 description 2
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000009429 electrical wiring Methods 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000012466 permeate Substances 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 230000037303 wrinkles Effects 0.000 description 1
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- Control Of Washing Machine And Dryer (AREA)
Description
本発明は、衣類乾燥機、特に、衣類やタオル等の被乾燥物に帯電した静電気を除電する機能を備えた衣類乾燥機に関するものである。 The present invention relates to a clothes dryer, and more particularly to a clothes dryer having a function of eliminating static electricity charged on an object to be dried such as clothes and towels.
従来の衣類乾燥機において、界面活性剤を含浸させた部材を乾燥室内に組み込み、この部材から流出する界面活性剤によって被乾燥物相互の摩擦の低減し、静電気を発生し難くしたものが知られている（例えば、特許文献１参照）。 In a conventional clothes dryer, a member impregnated with a surfactant is incorporated in a drying chamber, and the surfactant flowing out from this member reduces friction between objects to be dried, making it difficult to generate static electricity. (For example, refer to Patent Document 1).
しかしながら、このものでは、界面活性剤がなくなる度に界面活性剤含浸部材の取替えを行う必要があるため、十分にその摩擦低減性能が発揮されない可能性がある。また、界面活性剤含浸部材を着脱可能な状態で固定するための特別な構造を必要とするため、衣類乾燥機全体の構成が複雑化する問題もある。 However, in this case, since it is necessary to replace the surfactant-impregnated member every time the surfactant is used up, there is a possibility that the friction reducing performance is not sufficiently exhibited. Moreover, since a special structure for fixing the surfactant-impregnated member in a detachable state is required, there is a problem that the configuration of the entire clothes dryer is complicated.
また、従来の衣類乾燥機として、乾燥室内に水蒸気を噴霧して被乾燥物に帯電した静電気の除電を図るものも知られている（例えば、特許文献２参照）。 In addition, as a conventional clothes dryer, there is also known a device for discharging static electricity charged in an object to be dried by spraying water vapor in a drying chamber (see, for example, Patent Document 2).
この衣類乾燥機は、乾燥室内の空気を循環させる送風ダクト内に、その空気を加熱する電気ヒータと、除湿を行う水冷熱交換器と、乾燥室内へ水蒸気を噴霧する加湿手段とが組み込まれており、電気ヒータによって高温に加熱し且つ水冷熱交換器によって除湿された空気を乾燥室内へ循環させる高温除湿運転を所定時間行った後、電気ヒータによって低温に調整され且つ加湿手段によって水蒸気の噴霧された空気を乾燥室内へ循環させる低温加湿運転を行うことで、被乾燥物のシワ固着量の低減を図るとともに、静電気の低減を図っている。 In this clothes dryer, an electric heater that heats the air, a water-cooled heat exchanger that performs dehumidification, and a humidifying means that sprays water vapor into the drying chamber are incorporated in an air duct that circulates the air in the drying chamber. After high-temperature dehumidification operation in which the air heated to a high temperature by the electric heater and dehumidified by the water-cooled heat exchanger is circulated into the drying chamber for a predetermined time, the temperature is adjusted to a low temperature by the electric heater and water vapor is sprayed by the humidifying means. By carrying out a low-temperature humidification operation that circulates the air into the drying chamber, the amount of wrinkles adhering to the object to be dried is reduced and static electricity is reduced.
しかしながら、このものにおいても、水蒸気を噴霧するための加湿手段やその加湿手段へ水を供給するための配管等を衣類乾燥機本体に組み込む必要があるため、衣類乾燥機全体の構成が複雑化する問題がある。また、被乾燥物を低温で乾燥させながら乾燥室内へ水蒸気を供給する制御構成であるため、乾燥に要する時間が冗長になる問題もある。 However, even in this case, it is necessary to incorporate a humidifying means for spraying water vapor and a pipe for supplying water to the humidifying means into the clothes dryer main body, which complicates the overall structure of the clothes dryer. There's a problem. Moreover, since it is a control structure which supplies water vapor | steam to a drying chamber, drying a to-be-dried material at low temperature, there also exists a problem that the time which drying requires becomes redundant.
本発明は、上述の事情に鑑みてなされたものであり、簡易な構成で迅速且つ適切に衣類の静電気を除電することの可能な衣類乾燥機を提供することを課題とする。 This invention is made | formed in view of the above-mentioned situation, and makes it a subject to provide the clothes dryer which can discharge static electricity of clothes quickly and appropriately with a simple structure.
本発明に係る衣類乾燥機は、
ガスバーナから乾燥室内へ燃焼ガスを供給して被乾燥物を乾燥させる乾燥運転の終了後、乾燥室内へ空気を送り込んで被乾燥物を冷却させるクールダウン運転を実行可能な衣類乾燥機において、
クールダウン運転終了後、ガスバーナから乾燥室へ燃焼ガスを供給し、燃焼ガス中の水分によって被乾燥物に湿度を与える加湿運転を実行することで、被乾燥物に帯電した静電気を除電させる制御構成としたものである。
A clothes dryer according to the present invention comprises:
In a clothes dryer capable of performing a cool-down operation in which air is supplied into the drying chamber to cool the object to be dried after the drying operation for supplying the combustion gas from the gas burner to the drying chamber to dry the object to be dried is completed.
Control configuration that discharges static electricity from the object to be dried by supplying a combustion gas from the gas burner to the drying chamber after the cool-down operation and performing a humidifying operation that gives moisture to the object to be dried by moisture in the combustion gas. It is what.
上記構成によれば、クールダウン運転によって被乾燥物を冷却した後、ガスバーナから乾燥室内へ燃焼ガスを供給することで、その燃焼ガス中に含まれる水分が被乾燥物の内部や表面に付着する。そして、この被乾燥物に付着した水分によって、被乾燥物に帯電した静電気が導通し、また、乾燥室内の湿度上昇に伴って放電され、速やかに除電される。 According to the above configuration, after the object to be dried is cooled by the cool-down operation, the combustion gas is supplied from the gas burner to the drying chamber, so that moisture contained in the combustion gas adheres to the inside or the surface of the object to be dried. . Then, the water adhering to the object to be dried conducts static electricity charged to the object to be dried, and is discharged as the humidity in the drying chamber rises, and is quickly discharged.
また、燃焼ガス中には、プラスイオンの水素イオン（Ｈ＋）やマイナスイオンの水酸基イオン（ＯＨ−）が多く含まれており、これらのイオンが被乾燥物に付着することによって、被乾燥物に帯電した静電気が一層効果的に除電される。 Further, the combustion gas contains a lot of positive ion hydrogen ions (H + ) and negative ion hydroxyl ions (OH − ), and these ions adhere to the object to be dried. The static electricity charged on the surface is more effectively removed.
上記衣類乾燥機において、
前記加湿運転は、乾燥室内における被乾燥物の攪拌を停止した状態で行うものとすることができる。
In the clothes dryer,
The humidification operation may be performed in a state where stirring of the object to be dried in the drying chamber is stopped.
このものでは、加湿運転中における被乾燥物相互の摩擦が生じないから、被乾燥物の静電気除電効果が一層高まる。 In this case, since friction between the objects to be dried does not occur during the humidifying operation, the electrostatic charge eliminating effect of the objects to be dried is further enhanced.
以上のように、本発明によれば、ガスバーナの燃焼ガスを用いて被乾燥物に帯電した静電気を速やかに除電することが可能であるから、乾燥が終了するまでの時間が冗長にならないし、界面活性剤含浸部材や水蒸気発生装置等、被乾燥物の静電気を除電するための機構を衣類乾燥機本体内に別途組み込む必要もない。従って、比較的簡易な構成で迅速且つ適切に被乾燥物の静電気を除電することの可能な衣類乾燥機を提供できる。 As described above, according to the present invention, it is possible to quickly neutralize static electricity charged on an object to be dried using the combustion gas of the gas burner, so that the time until drying is completed is not redundant, It is not necessary to separately incorporate a mechanism for removing static electricity from the object to be dried, such as a surfactant-impregnated member and a water vapor generator, into the clothes dryer main body. Accordingly, it is possible to provide a clothes dryer that can quickly and appropriately remove static electricity from an object to be dried with a relatively simple configuration.
次に、上記した本発明を実施するための形態について、添付図面を参照しながら詳述する。 Next, embodiments for carrying out the present invention will be described in detail with reference to the accompanying drawings.
図１は、本発明の実施の形態に係る衣類乾燥機１の概略縦断面図であり、本体ケース１０の正面側に衣類投入口１００が開設されている。衣類投入口１００は、片開き式の扉１１で覆われており、その衣類投入口１００の奥部には、乾燥室としてのドラム１２が回動自在な状態で軸支されている。 FIG. 1 is a schematic longitudinal sectional view of a clothes dryer 1 according to an embodiment of the present invention, and a clothes insertion port 100 is opened on the front side of a main body case 10. The clothing input port 100 is covered with a single-open door 11, and a drum 12 as a drying chamber is pivotally supported in the inner portion of the clothing input port 100 in a rotatable state.
ドラム１２は、本体ケース１０の正面側へ開放する横向き円筒状に形成されており、その正面開放部１２０は、リング板１２１によって回動自在な状態で支持されている。一方、ドラム１２の奥壁１２２は、支持軸１２３によって回動自在な状態で支持されている。また、ドラム１２の奥壁１２２には、複数の排気用穴１２４が形成されている。さらに、ドラム１２の奥壁１２２の裏側（奥側）には、ドラム１２内の空気を本体ケース１０の外部へ導く排気ダクト１３が配設されている。尚、上記ドラム１２やリング板１２１は、図示しないアース線を通じて接地されている。 The drum 12 is formed in a horizontal cylindrical shape that opens to the front side of the main body case 10, and the front opening 120 is supported by a ring plate 121 in a rotatable state. On the other hand, the inner wall 122 of the drum 12 is supported by a support shaft 123 in a rotatable state. A plurality of exhaust holes 124 are formed in the back wall 122 of the drum 12. Further, an exhaust duct 13 that guides the air in the drum 12 to the outside of the main body case 10 is disposed on the back side (back side) of the back wall 122 of the drum 12. The drum 12 and the ring plate 121 are grounded through a ground wire (not shown).
排気ダクト１３は、ドラム１２の奥壁１２２の裏側から本体ケース１０上部の排気口１０１へ向かって延設されており、上記排気用穴１２４と排気口１０１とを繋いでいる。また、排気ダクト１３内には、排気ファン１４が組み込まれており、この排気ファン１４を回転させることで、外気が本体ケース１０の給気口１０２からその本体ケース１０の内部へ取り込まれ、後述する温風ダクト１７を通ってドラム１２内へ導かれる。そしてさらに、排気用穴１２４から排気ダクト１３を通って排気口１０１へ導かれ、本体ケース１０の外部へ排出される。 The exhaust duct 13 extends from the back side of the back wall 122 of the drum 12 toward the exhaust port 101 at the top of the main body case 10, and connects the exhaust hole 124 and the exhaust port 101. In addition, an exhaust fan 14 is incorporated in the exhaust duct 13. By rotating the exhaust fan 14, outside air is taken into the main body case 10 from an air supply port 102 of the main body case 10, which will be described later. The hot air duct 17 is guided into the drum 12. Further, it is led from the exhaust hole 124 through the exhaust duct 13 to the exhaust port 101 and is discharged to the outside of the main body case 10.
また、本体ケース１０内には、ドラム１２および排気ファン１４を回転させるためのモータ１５や、ドラム１２内に燃焼ガスを供給するバーナユニット１６、外気や燃焼ガスをドラム１２内へ導く温風ダクト１７、ドラム１２内へ投入された衣類やタオル等の被乾燥物（以下、「衣類等」という）Ｍの温度を検知する衣類温センサ１８、モータ１５の駆動やバーナユニット１６の点消火動作等を制御する制御回路２０が設けられている。 In the main body case 10, a motor 15 for rotating the drum 12 and the exhaust fan 14, a burner unit 16 for supplying combustion gas into the drum 12, and a hot air duct for introducing outside air and combustion gas into the drum 12. 17. Clothing temperature sensor 18 for detecting the temperature of an article to be dried (hereinafter referred to as “clothing etc.”) M such as clothes and towels thrown into the drum 12, driving of the motor 15, point-extinguishing operation of the burner unit 16, etc. A control circuit 20 is provided for controlling the above.
モータ１５には、二つの軸端部１５１，１５２が設けられており、この一方の軸端部１５１の回転力が伝動ベルトＢ１を介してドラム１２へ伝達され、ドラム１２を回転させる。また、他方の軸端部１５２の回転力が伝動ベルトＢ２を介して排気ファン１４へ伝達され、排気ファン１４を回転させる。 The motor 15 is provided with two shaft end portions 151 and 152, and the rotational force of the one shaft end portion 151 is transmitted to the drum 12 via the transmission belt B1 to rotate the drum 12. Further, the rotational force of the other shaft end 152 is transmitted to the exhaust fan 14 via the transmission belt B2, and the exhaust fan 14 is rotated.
バーナユニット１６は、ガスバーナ１６０やガス噴射ノズル１６１、図示しないガス供給弁等で構成されており、ガス噴射ノズル１６１からガスバーナ１６０のガス入口１６２へ向けて噴射されたガスは、ガス入口１６２周辺の空気とともにガスバーナ１６０内へ導かれ、そのガスバーナ１６０の炎孔１６３上方で着火し、燃焼する。尚、ガスバーナ１６０へ供給する空気は、給気口１０２から取り込まれる。 The burner unit 16 includes a gas burner 160, a gas injection nozzle 161, a gas supply valve (not shown), and the like, and the gas injected from the gas injection nozzle 161 toward the gas inlet 162 of the gas burner 160 is around the gas inlet 162. The gas is introduced into the gas burner 160 together with air, ignited above the flame hole 163 of the gas burner 160, and burned. Air supplied to the gas burner 160 is taken in from the air supply port 102.
温風ダクト１７は、ガスバーナ１６０の炎孔１６３上方からリング板１２１の下位に形成された温風出口１２５まで延設されており、ガスバーナ１６０から放出された燃焼ガスは、この温風ダクト１７を通って温風出口１２５へ導かれ、ドラム１２内へ送り込まれる。 The hot air duct 17 extends from above the flame hole 163 of the gas burner 160 to a hot air outlet 125 formed below the ring plate 121, and the combustion gas discharged from the gas burner 160 passes through the hot air duct 17. The air then passes through the hot air outlet 125 and is fed into the drum 12.
衣類温センサ１８は、接触検知式の温度センサであり、衣類等Ｍの温度を確実に検知し得るよう、リング板１２１の後面下位、即ち、ドラム１２内の底部側に配設されている。尚、衣類温度センサ１８には、非接触式の温度センサ（例えば、赤外線センサ）を採用しても良い。 The clothing temperature sensor 18 is a contact detection type temperature sensor, and is disposed below the rear surface of the ring plate 121, that is, on the bottom side in the drum 12 so that the temperature of the clothing M or the like can be detected with certainty. The clothing temperature sensor 18 may be a non-contact temperature sensor (for example, an infrared sensor).
制御回路２０は、図示しないが、ドラム１２の回転および停止を行うドラム作動回路、排気ファン１４の回転および停止を行うファン作動回路、ガスバーナ１６０の点火および消火を行う点消火回路、衣類温センサ１８の検知温度（以下、「衣類温度」という）Ｔ１と予め設定された乾燥終了温度Ｔｓとを比較する乾燥終了判定回路、衣類温度Ｔ１と予め設定されたクールダウン終了温度Ｔｃとを比較するクールダウン終了判定回路、衣類温度Ｔ１と予め設定された加湿終了温度Ｔｈとを比較する加湿終了判定回路、後述する加湿運転が開始された時点からの経過時間を監視するタイマ回路等で構成されており、上述したモータ１５、バーナユニット１６、衣類温センサ１８、および、本体ケース１０の正面に設けられた運転スイッチ２１は、この制御回路２０に電気配線を通じて接続されている。 Although not shown, the control circuit 20 includes a drum operation circuit that rotates and stops the drum 12, a fan operation circuit that rotates and stops the exhaust fan 14, a point fire extinguishing circuit that ignites and extinguishes the gas burner 160, and a clothing temperature sensor 18. Detection temperature (hereinafter referred to as “clothing temperature”) T1 and a drying end determination circuit for comparing a preset drying end temperature Ts, a cooldown for comparing the clothing temperature T1 and a preset cooldown end temperature Tc An end determination circuit, a humidification end determination circuit that compares the clothing temperature T1 with a preset humidification end temperature Th, a timer circuit that monitors an elapsed time from the start of the humidification operation described later, and the like, The motor 15, the burner unit 16, the clothing temperature sensor 18, and the operation switch 21 provided on the front surface of the main body case 10 are described above. It is connected through electrical wiring to the control circuit 20.
［動作について］
次に、上記制御回路２０による衣類乾燥機１の動作について、図２の作動フローチャートに従って説明する。
[About operation]
Next, operation | movement of the clothes dryer 1 by the said control circuit 20 is demonstrated according to the operation | movement flowchart of FIG.
ドラム１２内に衣類等Ｍが投入され、運転スイッチ２１が押されると、モータ１５を駆動してドラム１２および排気ファン１４を回転させるとともに、ガスバーナ１６０を点火し、乾燥運転が開始される。すると、ガスバーナ１６０から放出された燃焼ガスが、温風ダクト１７を通ってドラム１２内へ温風として供給され、衣類等Ｍの水分を蒸発させつつ、ドラム１２奥部の排気用穴１２４から排気ダクト１３を通って本体ケース１０の外部へ排出される。その結果、衣類等Ｍは、回転するドラム１２内で攪拌されながら、次第に乾燥していく（ＳＴ１）。 When clothes M or the like M is put into the drum 12 and the operation switch 21 is pressed, the motor 15 is driven to rotate the drum 12 and the exhaust fan 14, and the gas burner 160 is ignited to start the drying operation. Then, the combustion gas released from the gas burner 160 is supplied as warm air into the drum 12 through the warm air duct 17 and is exhausted from the exhaust hole 124 at the back of the drum 12 while evaporating moisture of the clothing M or the like. It is discharged outside the main body case 10 through the duct 13. As a result, the clothes M are gradually dried while being stirred in the rotating drum 12 (ST1).
また、上記乾燥運転が開始された時点より、衣類温度Ｔ１が所定の乾燥終了温度Ｔｓに到達したか否かの監視を開始する。尚、本実施の形態では、上記乾燥終了温度Ｔｓを１２０℃に設定しており、衣類等Ｍの過熱を防止している。即ち、衣類等Ｍは、この温度に達する頃に最適な乾燥状態となる（ＳＴ２）。 In addition, from the time when the drying operation is started, monitoring of whether or not the clothing temperature T1 has reached a predetermined drying end temperature Ts is started. In the present embodiment, the drying end temperature Ts is set to 120 ° C. to prevent the clothing M and the like from being overheated. That is, the clothing M or the like is in an optimal dry state when it reaches this temperature (ST2).
そして、衣類温度Ｔ１が乾燥終了温度Ｔｓに到達すれば、ドラム１２および排気ファン１４の回転を維持したまま、ガスバーナ１６０を消火し、クールダウン運転が開始される。すると、燃焼ガスに代わって、本体ケース１０内へ導かれた外気が温風ダクト１７からドラム１２内へ冷風として供給される。その結果、ドラム１２内全体の温度が低下し、衣類等Ｍは、回転するドラム１２内で攪拌されながら、次第に冷却されていく（ＳＴ３）。 When the clothing temperature T1 reaches the drying end temperature Ts, the gas burner 160 is extinguished while the rotation of the drum 12 and the exhaust fan 14 is maintained, and the cool-down operation is started. Then, in place of the combustion gas, the outside air guided into the main body case 10 is supplied as cold air from the hot air duct 17 into the drum 12. As a result, the temperature inside the drum 12 is lowered, and the clothing M is gradually cooled while being stirred in the rotating drum 12 (ST3).
また、上記クールダウン運転が開始された時点より、衣類温度Ｔ１が所定のクールダウン終了温度Ｔｃに到達したか否かの監視を開始する。尚、本実施の形態では、上記クールダウン終了温度Ｔｃを３５℃に設定しており、衣類等Ｍを取り出す際の火傷や不快感を防止している（ＳＴ４）。 In addition, monitoring starts whether or not the clothing temperature T1 has reached a predetermined cooldown end temperature Tc from the time when the cooldown operation is started. In the present embodiment, the cool-down end temperature Tc is set to 35 ° C. to prevent burns and discomfort when taking out clothes M or the like (ST4).
そして、衣類温度Ｔ１が上記クールダウン終了温度Ｔｃに到達すれば、モータ１５を断続的に停止してドラム１２を間欠回転させるとともに、ガスバーナ１６０を再点火し、加湿運転が開始される。すると、ガスバーナ１６０から放出された燃焼ガスが、再び、温風ダクト１７を通ってドラム１２内へ供給される。このとき、ドラム１２内の衣類等Ｍの表面や内部は、常温程度まで十分に冷却されているので、その表面や内部全体に燃焼ガス中の水分が均一に付着し始める（ＳＴ５）。 When the clothing temperature T1 reaches the cool-down end temperature Tc, the motor 15 is intermittently stopped to rotate the drum 12 intermittently, the gas burner 160 is re-ignited, and the humidification operation is started. Then, the combustion gas released from the gas burner 160 is supplied again into the drum 12 through the hot air duct 17. At this time, since the surface and the inside of the clothing M in the drum 12 are sufficiently cooled to about room temperature, moisture in the combustion gas begins to uniformly adhere to the entire surface and inside (ST5).
また、上記加湿運転が開始された時点より、衣類温度Ｔ１が所定の加湿終了温度Ｔｈに到達したか否か、および、上記加湿運転が開始された時点から所定時間（例えば、１分）が経過したか否かの監視を開始する。尚、本実施の形態では、上記加湿終了温度Ｔｈを４０℃に設定しており、ドラム１２内に残留した油分の発火を防止している（ＳＴ６〜ＳＴ７）。 Further, whether or not the clothing temperature T1 has reached a predetermined humidification end temperature Th from the time when the humidification operation is started, and a predetermined time (for example, 1 minute) has elapsed from the time when the humidification operation is started. Start monitoring whether or not In the present embodiment, the humidification end temperature Th is set to 40 ° C. to prevent ignition of the oil remaining in the drum 12 (ST6 to ST7).
そして、加湿運転が開始された時点から上記所定時間が経過するか、或いは、衣類温度Ｔ１が上記加湿終了温度Ｔｈに到達した場合は、モータ１５を停止してドラム１２および排気ファン１４の回転を停止させるとともに、ガスバーナ１６０を消火し、加湿運転が終了する（ＳＴ８）。 When the predetermined time elapses from the time when the humidification operation is started or the clothing temperature T1 reaches the humidification end temperature Th, the motor 15 is stopped and the drum 12 and the exhaust fan 14 are rotated. While stopping, the gas burner 160 is extinguished and the humidification operation is completed (ST8).
次に、上述した衣類乾燥機１の制御動作と衣類等Ｍの乾燥度Ｄ１との関係を、図３のグラフに従って説明する。乾燥運転が開始されると、ドラム１２内に供給される高温の燃焼ガスによって衣類等Ｍが加熱され、乾燥度Ｄ１が次第に高くなっていく。そして、衣類温度Ｔ１が乾燥終了温度Ｔｓに達する頃には、衣類等Ｍは最適な乾燥状態となって、乾燥度Ｄ１の変化が少なくなる。 Next, the relationship between the control operation of the clothes dryer 1 described above and the dryness D1 of the clothes M or the like will be described with reference to the graph of FIG. When the drying operation is started, the clothing M or the like M is heated by the high-temperature combustion gas supplied into the drum 12, and the dryness D1 gradually increases. Then, when the clothing temperature T1 reaches the drying end temperature Ts, the clothing M or the like is in an optimal dry state, and the change in the dryness D1 is reduced.
その後、衣類温度Ｔ１が乾燥終了温度Ｔｓに達し、クールダウン運転が開始されると、ドラム１２内に供給される冷風によって衣類等Ｍが徐々に冷却され始めるが、乾燥度Ｄ１は一定状態で推移する。そして、衣類温度Ｔ１がクールダウン終了温度Ｔｃにまで低下すると、加湿運転が開始され、ドラム１２内に供給される燃焼ガスによって再び衣類等Ｍが加熱され始める。その際、乾燥度Ｄ１は、燃焼ガス中に含まれる水分の付着によって若干低下する。そして、衣類温度Ｔ１が加湿終了温度Ｔｈに達した時点、或いは、加湿運転を開始してから所定時間が経過した時点で動作を終了する。 Thereafter, when the clothing temperature T1 reaches the drying end temperature Ts and the cool-down operation is started, the clothing M or the like M is gradually cooled by the cold air supplied into the drum 12, but the dryness D1 changes in a constant state. To do. When the clothing temperature T1 decreases to the cool-down end temperature Tc, the humidifying operation is started, and the clothing M and the like M starts to be heated again by the combustion gas supplied into the drum 12. At that time, the degree of dryness D1 slightly decreases due to the adhesion of moisture contained in the combustion gas. And operation | movement is complete | finished when the clothing temperature T1 reaches the humidification completion temperature Th, or when the predetermined time has passed since the humidification operation was started.
ところで、乾燥が進むにつれ、衣類等Ｍには、それら相互の摩擦によって静電気が発生し易くなる。従って、上述した乾燥運転やクールダウン運転を行っている間に、衣類等Ｍに静電気が帯電する場合がある。 By the way, as the drying progresses, the clothes M and the like M easily generate static electricity due to mutual friction. Accordingly, there is a case where static electricity is charged on the clothing M or the like during the above-described drying operation or cool-down operation.
そこで、上記実施の形態に係る衣類乾燥機１では、クールダウン運転によって衣類等Ｍを所定温度にまで冷却した段階で、ガスバーナ１６０からドラム１２内へ燃焼ガスを供給し、その燃焼ガス中に含まれる水分を衣類等Ｍに付着させている。これにより、衣類等Ｍに帯電した静電気がその水分によって吸収されて導通し、また、ドラム１２内の湿度上昇に伴って空気中への放電が促進される。その結果、衣類等Ｍに帯電した静電気が速やかに除電される。実際に衣類等Ｍの静電気量を測定したところ、加湿運転を行う前には＋９ｋＶ帯電していたが、１分間加湿運転を行った後は＋１ｋＶにまで低減した。 Therefore, in the clothes dryer 1 according to the above-described embodiment, the combustion gas is supplied from the gas burner 160 into the drum 12 when the clothes M or the like M is cooled to a predetermined temperature by the cool-down operation, and is included in the combustion gas. Moisture is attached to clothing M or the like. As a result, the static electricity charged on the clothing M or the like is absorbed by the moisture and conducted, and discharge into the air is promoted as the humidity in the drum 12 increases. As a result, the static electricity charged on the clothing M is quickly removed. When the amount of static electricity of clothes M and the like was actually measured, it was charged with +9 kV before the humidification operation, but decreased to +1 kV after the humidification operation for 1 minute.
尚、燃焼ガス中には、プラスイオンの水素イオン（Ｈ＋）やマイナスイオンの水酸基イオン（ＯＨ−）が多く含まれており、これらのイオンが衣類等Ｍの表面や内部へ浸透することで、衣類等Ｍに帯電した静電気が一層効果的に除電される。 The combustion gas contains a large amount of positive ion hydrogen ions (H + ) and negative ion hydroxyl ions (OH − ), and these ions permeate into the surface of M or the like such as clothing. The static electricity charged on the clothing M and the like is more effectively eliminated.
このように、上記実施の形態によれば、ガスバーナ１６０の燃焼ガスを用いて衣類等Ｍに帯電した静電気を速やかに除電することが可能であるから、乾燥が完了するまでの時間が冗長にならないし、界面活性剤含浸部材や水蒸気発生装置等、衣類等Ｍの静電気を除電するための機構を衣類乾燥機本体内に別途組み込む必要もない。従って、比較的簡易な構成で迅速且つ適切に衣類等Ｍの静電気を除電することの可能な衣類乾燥機を提供できる。 As described above, according to the above-described embodiment, it is possible to quickly remove static electricity charged in clothing M or the like using the combustion gas of the gas burner 160, so that the time until drying is completed is not redundant. In addition, there is no need to separately incorporate a mechanism for discharging static electricity from the clothing M, such as a surfactant-impregnated member and a water vapor generator, in the clothing dryer main body. Therefore, it is possible to provide a clothes dryer that can quickly and appropriately remove static electricity from clothes M and the like with a relatively simple configuration.
また、衣類等Ｍの表面や内部に燃焼ガス中の水分が付着し易い低温段階にのみ加湿運転が行われるから、乾燥に要する時間を一層短縮することが可能である。従って、より迅速に衣類等Ｍの静電気を除電することの可能な衣類乾燥機を提供できる。 Further, since the humidifying operation is performed only in the low temperature stage where moisture in the combustion gas is likely to adhere to the surface or inside of the clothing M or the like, the time required for drying can be further shortened. Accordingly, it is possible to provide a clothes dryer that can quickly remove static electricity from clothes M or the like.
［その他］
尚、上記実施の形態において、加湿運転は、ドラム１２を間欠回転させた状態で燃焼ガスを供給する制御構成としたが、ドラム１２の回転を停止し、衣類等Ｍの攪拌を停止させた状態で燃焼ガスを供給する制御構成とすることもできる。このものでは、加湿運転時における衣類等Ｍ相互の摩擦が生じないので、その衣類等Ｍに帯電する静電気量を抑制することが可能である。これにより、衣類等Ｍの静電気除電効果が一層高まる。
[Others]
In the above embodiment, the humidification operation is a control configuration in which the combustion gas is supplied while the drum 12 is intermittently rotated. However, the rotation of the drum 12 is stopped and the stirring of the clothing M and the like is stopped. It is also possible to use a control configuration for supplying combustion gas. In this case, since there is no friction between the clothes and the like M during the humidifying operation, it is possible to suppress the amount of static electricity charged in the clothes and the like M. Thereby, the static electricity static elimination effect of clothes etc. M increases further.
また、上記実施の形態では、衣類温度Ｔ１に基づいて乾燥運転の終了時期を判定しているが（図２のＳＴ２〜ＳＴ３参照）、リング板１２１に衣類等Ｍの湿気状態を検知するための湿度センサを設け、この湿度センサの出力に応じて乾燥運転の終了時期を判定するものとしても良い。また、予め選択された乾燥モードに応じて自動で乾燥時間が設定される制御構成としても良いし、図示しない乾燥設定スイッチによって任意に乾燥時間を設定する制御構成としても良い。 Moreover, in the said embodiment, although the completion | finish time of drying operation is determined based on clothing temperature T1 (refer ST2-ST3 of FIG. 2), it is for detecting the moisture state of clothing etc. M on the ring board 121. FIG. A humidity sensor may be provided, and the end time of the drying operation may be determined according to the output of the humidity sensor. Further, a control configuration in which the drying time is automatically set according to a preselected drying mode may be used, or a control configuration in which the drying time is arbitrarily set by a drying setting switch (not shown) may be employed.
さらに、上記実施の形態では、衣類温度Ｔ１に基づいてクールダウン運転の終了時期を判定しているが（図２のＳＴ４〜ＳＴ５参照）、乾燥モードに応じて自動でクールダウン時間が設定される制御構成としても良いし、図示しないクールダウン設定スイッチによって任意にクールダウン時間を設定する制御構成としても良い。 Further, in the above embodiment, the end time of the cool-down operation is determined based on the clothing temperature T1 (see ST4 to ST5 in FIG. 2), but the cool-down time is automatically set according to the drying mode. A control configuration may be used, or a control configuration in which the cool-down time is arbitrarily set by a cool-down setting switch (not shown) may be used.
また、上記実施の形態では、加湿運転を開始してから一定時間が経過するか、或いは、衣類温度Ｔ１が加湿終了温度Ｔｈに到達した場合に加湿運転を終了する制御構成であるが（図２のＳＴ６〜ＳＴ８参照）、上記いずれか一方の条件のみを監視し、その条件を満たした場合に加湿運転を終了する制御構成としても良い。 Moreover, in the said embodiment, although a fixed time passes after starting a humidification driving | operation, or it is the control structure which complete | finishes a humidifying driving | operation when the clothing temperature T1 reaches | attains humidification completion temperature Th (FIG. 2). The control configuration may be such that only one of the above conditions is monitored and the humidification operation is terminated when the condition is satisfied.
１・・・衣類乾燥機
１０・・・本体ケース
１２・・・ドラム（乾燥室）
１３・・・排気ダクト
１４・・・排気ファン
１５・・・モータ
１６・・・バーナユニット
１６０・・・ガスバーナ
１７・・・温風ダクト
１８・・・衣類温センサ
２０・・・制御回路
Ｍ・・・衣類等（被乾燥物）
DESCRIPTION OF SYMBOLS 1 ... Clothes dryer 10 ... Main body case 12 ... Drum (drying chamber)
13 ... Exhaust duct 14 ... Exhaust fan 15 ... Motor 16 ... Burner unit 160 ... Gas burner 17 ... Hot air duct 18 ... Clothing temperature sensor 20 ... Control circuit M ..Clothing (to be dried)
Claims (2)
クールダウン運転終了後、ガスバーナから乾燥室へ燃焼ガスを供給し、燃焼ガス中の水分によって被乾燥物に湿度を与える加湿運転を実行することで、被乾燥物に帯電した静電気を除電させる制御構成とした、衣類乾燥機。 In a clothes dryer capable of performing a cool-down operation in which air is supplied into the drying chamber to cool the object to be dried after the drying operation for supplying the combustion gas from the gas burner to the drying chamber to dry the object to be dried is completed.
Control configuration that discharges static electricity from the object to be dried by supplying a combustion gas from the gas burner to the drying chamber after the cool-down operation and performing a humidifying operation that gives moisture to the object to be dried by moisture in the combustion gas. A clothes dryer.
前記加湿運転は、乾燥室内における被乾燥物の攪拌を停止した状態で行う、衣類乾燥機。 The clothes dryer according to claim 1,
The humidifying operation is a clothes dryer which is performed in a state where stirring of an object to be dried in a drying chamber is stopped.
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| JPH06190197A (en) * | 1992-12-28 | 1994-07-12 | Rinnai Corp | Ignition method for gas clothing drying machine |
| JP2000061199A (en) * | 1998-08-19 | 2000-02-29 | Mitsubishi Heavy Ind Ltd | Drying device for wet-cleaned clothing |
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