JP2021510091A - Tumble dryer with heat pump system - Google Patents

Tumble dryer with heat pump system Download PDF

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JP2021510091A
JP2021510091A JP2020529128A JP2020529128A JP2021510091A JP 2021510091 A JP2021510091 A JP 2021510091A JP 2020529128 A JP2020529128 A JP 2020529128A JP 2020529128 A JP2020529128 A JP 2020529128A JP 2021510091 A JP2021510091 A JP 2021510091A
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airflow
tumble dryer
evaporator
duct
air flow
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JP7479282B2 (en
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ボンデソン マグヌス
ボンデソン マグヌス
インゲマル パーション グンナル
インゲマル パーション グンナル
ニルソン マルティン
ニルソン マルティン
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エレクトロラックス プロフェッショナル アクティエボラーグ(パブリーク)
エレクトロラックス プロフェッショナル アクティエボラーグ(パブリーク)
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    • DTEXTILES; PAPER
    • D06TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06FLAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F58/00Domestic laundry dryers
    • D06F58/20General details of domestic laundry dryers 
    • D06F58/206Heat pump arrangements
    • DTEXTILES; PAPER
    • D06TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06FLAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F2103/00Parameters monitored or detected for the control of domestic laundry washing machines, washer-dryers or laundry dryers
    • D06F2103/28Air properties
    • D06F2103/36Flow or velocity
    • DTEXTILES; PAPER
    • D06TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06FLAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F2103/00Parameters monitored or detected for the control of domestic laundry washing machines, washer-dryers or laundry dryers
    • D06F2103/50Parameters monitored or detected for the control of domestic laundry washing machines, washer-dryers or laundry dryers related to heat pumps, e.g. pressure or flow rate
    • DTEXTILES; PAPER
    • D06TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06FLAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F2105/00Systems or parameters controlled or affected by the control systems of washing machines, washer-dryers or laundry dryers
    • D06F2105/26Heat pumps
    • DTEXTILES; PAPER
    • D06TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06FLAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F58/00Domestic laundry dryers
    • D06F58/02Domestic laundry dryers having dryer drums rotating about a horizontal axis
    • D06F58/04Details 

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Detail Structures Of Washing Machines And Dryers (AREA)

Abstract

ヒートポンプシステム(22)と、空気流を循環させるための空気流回路(21)と、を備えるタンブル乾燥機(1)。空気流回路(21)は、凝縮器(19)、乾燥ドラム(11)、ファン装置(13)、空気流ダクト(18)、及び蒸発器(15)を備える。空気流ダクト(18)は蒸発器(15)の上流に配置された狭窄器(16)を備える。狭窄器(16)には空気流ダクト(18)の断面にわたって分布された複数の開口(23)が設けられており、狭窄器(16)は空気流が狭窄器(16)の第一側Aから狭窄器(16)の第二側Bに流れるときに空気流ダクト(18)内で循環する空気流の圧力降下を生じさせるように適合されている。狭窄器(16)の開口(23)は空気流ダクト(18)の断面にわたって空気流を分布するように適合されている。【選択図】図2A tumble dryer (1) comprising a heat pump system (22) and an airflow circuit (21) for circulating an airflow. The air flow circuit (21) includes a condenser (19), a drying drum (11), a fan device (13), an air flow duct (18), and an evaporator (15). The airflow duct (18) comprises a constrictor (16) located upstream of the evaporator (15). The stenosis device (16) is provided with a plurality of openings (23) distributed over the cross section of the air flow duct (18), and the stenosis device (16) has an air flow on the first side A of the stenosis device (16). It is adapted to cause a pressure drop in the airflow circulating in the airflow duct (18) as it flows from to the second side B of the constrictor (16). The opening (23) of the constrictor (16) is adapted to distribute the airflow over the cross section of the airflow duct (18). [Selection diagram] Fig. 2

Description

本開示は、タンブル乾燥機に関し、特にヒートポンプシステムを備えるタンブル乾燥機に関する。 The present disclosure relates to a tumble dryer, particularly a tumble dryer equipped with a heat pump system.

斯かるタンブル乾燥機は例えば欧州特許出願公開第3118365号明細書に示されており、斯かるタンブル乾燥機に関連する一つの課題はそれらのエネルギ効率を如何にしてさらに改善するかである。 Such tumble dryers are set forth, for example, in European Patent Application Publication No. 3118365, and one issue associated with such tumble dryers is how to further improve their energy efficiency.

改善された性能を有するヒートポンプシステムを備えたタンブル乾燥機を得ることが目的である。 The purpose is to obtain a tumble dryer with a heat pump system with improved performance.

これは、ヒートポンプシステムと、空気流を循環させるための空気流回路と、を備えるタンブル乾燥機によって少なくとも部分的に実現される。空気流回路は、凝縮器、乾燥ドラム、ファン装置、空気流ダクト、及び蒸発器を備える。空気流ダクトは蒸発器の上流に配置された狭窄器/拡散器を備える。狭窄器には空気流ダクトの断面にわたって分布した複数の開口が設けられており、狭窄器は空気流が狭窄器の第一側から狭窄器の第二側へ流れるときに空気流ダクト内を循環する空気流の圧力降下を生じさせる。狭窄器の開口は空気流ダクトの断面にわたって空気流を分布するように適合されている。 This is at least partially achieved by a tumble dryer with a heat pump system and an airflow circuit for circulating the airflow. The airflow circuit includes a condenser, a drying drum, a fan device, an airflow duct, and an evaporator. The airflow duct comprises a constrictor / diffuser located upstream of the evaporator. The stenosis is provided with multiple openings distributed over the cross section of the airflow duct, which circulates in the airflow duct as the airflow flows from the first side of the stenosis to the second side of the stenosis. Causes a pressure drop in the air flow. The opening of the constrictor is adapted to distribute the airflow across the cross section of the airflow duct.

開口を備えた狭窄器を蒸発器の上流の空気流ダクト内に配置することにより、空気流を蒸発器の表面の大部分でより均等に配分することが可能になる。これは、蒸発器で得られる空気流のより効果的な除湿と、乾燥ドラム内のより短い乾燥時間と、ヒートポンプシステムのより高い性能及びエネルギ節約と、に繋がる。 Placing the stenosis with openings in the airflow duct upstream of the evaporator allows the airflow to be more evenly distributed over most of the surface of the evaporator. This leads to more effective dehumidification of the airflow obtained by the evaporator, shorter drying times in the drying drum, and higher performance and energy savings of the heat pump system.

開口は狭窄器の表面の少なくとも1/3を構成するとよい。 The opening should form at least one-third of the surface of the stenosis device.

蒸発器の表面にわたって所望の空気流分布を得るために、開口の割合は空気流ダクトのサイズ、従って洗濯乾燥機のサイズに依存する可能性がある。但し、それは狭窄器の少なくとも1/3が所望の空気流分布を有する開口から構成され得る場合に有利になるであろう。狭窄器と蒸発器の表面との間の距離は、0〜300mm、好ましくは10mm〜40mmである。 In order to obtain the desired airflow distribution over the surface of the evaporator, the proportion of openings may depend on the size of the airflow duct, and thus the size of the washer / dryer. However, it will be advantageous if at least one-third of the stenosis device can be composed of openings with the desired airflow distribution. The distance between the constrictor and the surface of the evaporator is 0 to 300 mm, preferably 10 mm to 40 mm.

狭窄器は穿孔板であるとよい。例えば、穿孔板は板金でよく、又は金属メッシュが空気流ダクト内に配置されて狭窄器を提供するとよい。これら解決策は製造が簡単で安価である。 The stenosis device may be a perforation plate. For example, the perforation plate may be sheet metal, or a metal mesh may be placed in the airflow duct to provide the constrictor. These solutions are easy to manufacture and inexpensive.

タンブル乾燥機の回転可能なドラムは、空気入口開口を備えた円形後方壁と、空気出口開口を備えたラジアル円筒壁と、を備えている。ドラムの円筒外周の外側の空間はドラムの下方に配置されたフィルタに通じるダクトとして構成されるとよい。これにより、空気流の制限が軽減され、ドラムの直径とほぼ同じ幅の大型フィルタを使用できる。 The rotatable drum of the tumble dryer comprises a circular rear wall with an air inlet opening and a radial cylindrical wall with an air outlet opening. The space outside the outer circumference of the cylinder of the drum may be configured as a duct leading to a filter arranged below the drum. This reduces airflow restrictions and allows the use of large filters that are approximately the same width as the diameter of the drum.

上記に加え、本発明の更なる目的、特徴、及び利点は、同一の参照符号を類似の要素に使用した添付の図面を参照して、本発明の好適な実施形態の以下の例示的且つ非限定的な詳細な説明を通じて良好に理解されるであろう。 In addition to the above, further objectives, features, and advantages of the present invention can be found in the following exemplary and non-exclusive of preferred embodiments of the invention, with reference to the accompanying drawings in which the same reference numerals are used for similar elements. It will be well understood through a limited detailed description.

タンブル乾燥機の概略図を示す。The schematic diagram of the tumble dryer is shown. 内部部品が露出した、ヒートポンプシステムを備えるタンブル乾燥機の概略側断面図を示す。A schematic side sectional view of a tumble dryer with a heat pump system with exposed internal components is shown. 図2の点線部分Xの拡大図を示す。The enlarged view of the dotted line part X of FIG. 2 is shown. 本開示による狭窄器の一例の概略図を示す。A schematic diagram of an example of a stenosis device according to the present disclosure is shown. 本開示による別の狭窄器の一例の概略図を示す。A schematic diagram of another example of a stenotic device according to the present disclosure is shown.

図1は平行六面体形状のハウジング2を備えるタンブル乾燥機1を概略的に示している。ドア5は乾燥すべき湿った洗濯物の投入と乾燥した洗濯物の排出のためにヒンジ7によってハウジング2の前壁3に取付けられている。 FIG. 1 schematically shows a tumble dryer 1 including a parallelepiped housing 2. The door 5 is attached to the front wall 3 of the housing 2 by a hinge 7 for loading wet laundry to be dried and discharging the dry laundry.

図2はヒートポンプシステム22及び空気流回路21を備えるタンブル乾燥機1の断面図を示している。空気流回路21は、乾燥ドラム11、ファン装置13、空気流ダクト18、蒸発器15、及び凝縮器19を備えている。 FIG. 2 shows a cross-sectional view of a tumble dryer 1 including a heat pump system 22 and an air flow circuit 21. The air flow circuit 21 includes a drying drum 11, a fan device 13, an air flow duct 18, an evaporator 15, and a condenser 19.

乾燥すべき湿った洗濯物はタンブル乾燥機1の前側3に配置されたドア5を介して乾燥ドラム11の中に供給される。湿った洗濯物から水分を取除くために温かくて乾燥した空気を使用するとよい。空気流は、空気流回路21内で循環し、ファン装置13によって回路21を通って移動するとよい。図示した実施形態では、ファン装置13が乾燥ドラム11の下方であるが蒸発器15の前方に位置している。或いは、ファン装置13が凝縮器19と乾燥ドラム11との間に配置されているとよい。図示した実施形態における空間の考慮により、ファン装置13の配置は乾燥ドラム11の下方に選択されている。 The wet laundry to be dried is supplied into the drying drum 11 through the door 5 arranged on the front side 3 of the tumble dryer 1. Warm and dry air should be used to remove moisture from the damp laundry. The air flow may circulate in the air flow circuit 21 and move through the circuit 21 by the fan device 13. In the illustrated embodiment, the fan device 13 is located below the drying drum 11 but in front of the evaporator 15. Alternatively, the fan device 13 may be arranged between the condenser 19 and the drying drum 11. Due to space considerations in the illustrated embodiment, the placement of the fan device 13 is chosen below the drying drum 11.

湿った洗濯物が回転する乾燥ドラム11内で乾燥すると、湿った洗濯物から乾燥ドラム11内を循環する空気流へ水分が移動する。温かく加湿された空気は乾燥ドラム11を出て空気流ダクト18を通って蒸発器15に循環される。表示した空気流ダクト18は空気流の方向に関して蒸発器15の前方で直接その上流に配置されている。言うまでもなく空気流回路21は幾つかのダクト及び通路を含んで閉回路を形成している。 When the damp laundry dries in the rotating drying drum 11, moisture moves from the damp laundry to the air stream circulating in the drying drum 11. The warm and humidified air exits the drying drum 11 and circulates through the airflow duct 18 to the evaporator 15. The indicated airflow duct 18 is located directly upstream of the evaporator 15 with respect to the direction of the airflow. Needless to say, the air flow circuit 21 includes several ducts and passages to form a closed circuit.

空気流はそれが蒸発器15に入る前に空気流から粒子又は糸くずを分離するためのフィルタ12を通過するとよい。図示した実施形態では、フィルタ12が乾燥ドラム13の下方であるがファン装置15の上方に配置されているが、他の位置も可能である。 The air stream may pass through a filter 12 for separating particles or lint from the air stream before it enters the evaporator 15. In the illustrated embodiment, the filter 12 is located below the drying drum 13 but above the fan device 15, but other positions are possible.

図示した例では、主に業務用又は共用洗濯設備での使用を意図した高容量タンブル乾燥機が示されている。斯かるタンブル乾燥機は、ドラムを通る処理空気流を提供するために、その円形後方壁に空気入口開口と、そのラジアル円筒壁、特にその前部に空気出口開口と、を備えたドラム11を備えるとよい。これは、前壁ドア5に関連して配置されたフィルタ付き出口ではなく、ドラムの下方に配置された糸くず除去フィルタと結合されるとよい。ドラム11の円筒外周の外側の空間はドラム11の下方のフィルタ12に通じるダクトとして構成されるとよい。但し大部分については、本明細書に記載した改善を、週に数回の使用を意図した一般的な家庭用タンブル乾燥機に関連して使用してもよい。 The illustrated example shows a high capacity tumble dryer intended primarily for use in commercial or shared laundry equipment. Such a tumble dryer provides a drum 11 with an air inlet opening on its circular rear wall and an air outlet opening on its radial cylindrical wall, especially on its front, to provide a processing air flow through the drum. You should prepare. This may be coupled with a lint removal filter located below the drum rather than a filtered outlet located relative to the front wall door 5. The space outside the outer circumference of the cylinder of the drum 11 may be configured as a duct leading to the filter 12 below the drum 11. However, for the most part, the improvements described herein may be used in connection with common household tumble dryers intended for use several times a week.

温かく加湿された空気は空気流ダクト18を通ってダクト(図示せず)で構成される蒸発器15に送られ、温かく加湿された空気と冷媒がダクト内で交互に導かれ、空気流が冷却されて冷媒との熱交換により除湿される。 The warmly humidified air is sent through the air flow duct 18 to the evaporator 15 composed of ducts (not shown), and the warmly humidified air and the refrigerant are alternately guided in the duct to cool the air flow. It is dehumidified by heat exchange with the refrigerant.

その後、冷却され除湿された空気は蒸発器15から凝縮器19に循環され、空気流が冷媒との熱交換によって再び加熱される。 After that, the cooled and dehumidified air is circulated from the evaporator 15 to the condenser 19, and the air flow is heated again by heat exchange with the refrigerant.

温かい空気流は次いで乾燥ドラム11の中に再び吹込まれる。矢印21は空気流回路における空気流の循環を示している。 The warm air stream is then blown back into the drying drum 11. Arrow 21 indicates the circulation of airflow in the airflow circuit.

冷媒は冷媒回路を通って導かれ、圧縮機17が冷媒を圧縮し、冷媒は凝縮器19で凝縮され、膨張弁(図示せず)を通過した後に蒸発器15で気化される。 The refrigerant is guided through a refrigerant circuit, the compressor 17 compresses the refrigerant, the refrigerant is condensed by the condenser 19, passes through an expansion valve (not shown), and then vaporized by the evaporator 15.

蒸発器、圧縮機17、及び凝縮器19並びに膨張弁を備えるヒートポンプシステム22は、タンブル乾燥機1の後側9に沿って乾燥ドラム11及びファン装置13の後ろに配置されているとよく、空気が出入りする開口を備えた断熱シェル23で封入されているとよい。 The heat pump system 22 with an evaporator, a compressor 17, a condenser 19, and an expansion valve is preferably located behind the drying drum 11 and the fan device 13 along the rear 9 of the tumble dryer 1 and is air. It is preferable that the insulation shell 23 is provided with an opening through which the air can enter and exit.

図2及び図3で分かるように、狭窄器/拡散器16は空気流ダクト18内の蒸発器15の上流に配置されている。狭窄器16には、空気流ダクト18の断面にわたって、従って蒸発器15の表面にわたって分布する複数の開口23(図4及び図5参照)が設けられている。 As can be seen in FIGS. 2 and 3, the stenosis / diffuser 16 is located upstream of the evaporator 15 in the airflow duct 18. The constrictor 16 is provided with a plurality of openings 23 (see FIGS. 4 and 5) that are distributed over the cross section of the airflow duct 18 and thus over the surface of the evaporator 15.

狭窄器16は空気流が狭窄器16の第一側Aから狭窄器16の第二側Bに流れるときに空気流ダクト18内を循環する空気流に圧力降下を生じさせる。空気流ダクト18内に開口を備えた狭窄器16を蒸発器15の上流に配置することにより、蒸発器15の表面のより大部分に空気流を割当てることが可能になる。 The stenosis device 16 causes a pressure drop in the air flow circulating in the air flow duct 18 when the air flow flows from the first side A of the stenosis device 16 to the second side B of the stenosis device 16. By arranging the constrictor 16 having an opening in the air flow duct 18 upstream of the evaporator 15, it is possible to allocate the air flow to a larger part of the surface of the evaporator 15.

これは蒸発器15の表面にわたって流入する空気のより均一な分布をもたらし、即ち遮られていない空気流ダクト18を使用する場合と比べて蒸発器の表面にわたる空気流の差異が低減されるようになる。これは次いで、蒸発器15で得られる空気流のより効果的な除湿と、乾燥ドラム11内のより短い乾燥時間と、ヒートポンプシステム22のより高い性能及びエネルギ節約と、に繋がる。狭窄器16の領域は空気流ダクト18の全断面を占めているとよい。 This results in a more uniform distribution of air flowing over the surface of the evaporator 15, i.e. reducing the difference in airflow over the surface of the evaporator compared to using an unobstructed airflow duct 18. Become. This in turn leads to more effective dehumidification of the airflow obtained by the evaporator 15, shorter drying times in the drying drum 11, and higher performance and energy savings of the heat pump system 22. The region of the constrictor 16 may occupy the entire cross section of the airflow duct 18.

斯かる狭窄器の無い開いたダクトでは、空気流が殆どの場合にダクトの中央の領域に集中し、その結果、乱流によって蒸発器の対応する中央領域に集中する。これは蒸発器の非効率的な使用に繋がり、従ってより少ない水が空気流から抽出されるであろう。加えて、蒸発器に幾つかの並列回路管がある場合、一部の管内の冷媒流体は、液体の冷媒が蒸発器を出るような不十分な度合いに加熱される可能性があり、望ましくない。斯かる問題は本明細書に記載された狭窄器でかなりの程度まで回避できる。 In open ducts without such constrictors, airflow is most often concentrated in the central area of the duct, resulting in turbulence concentrating in the corresponding central area of the evaporator. This will lead to inefficient use of the evaporator and therefore less water will be extracted from the air stream. In addition, if the evaporator has several parallel circuit tubes, the refrigerant fluid in some tubes may be heated to an insufficient degree so that the liquid refrigerant leaves the evaporator, which is not desirable. .. Such problems can be avoided to a large extent with the stenosis devices described herein.

蒸発器15の表面にわたる空気流の分布は狭窄器16と蒸発器15の表面との間の距離dに依存する。所望の分布を得るために、距離dは0〜300mmであるとよい。好ましくは、10mm〜40mmの距離dが使用される。 The distribution of airflow over the surface of the evaporator 15 depends on the distance d between the constrictor 16 and the surface of the evaporator 15. In order to obtain the desired distribution, the distance d is preferably 0 to 300 mm. Preferably, a distance d of 10 mm to 40 mm is used.

さらに、狭窄器16の表面の開口23の割合は蒸発器15の表面にわたる空気流の分布に影響を与える。蒸発器の表面にわたって所望の空気流分布を得るために、開口の割合は、空気流ダクト18のサイズ、従ってタンブル乾燥機1のサイズに依存する。但し、狭窄器16の表面の少なくとも1/3は所望の空気流分布を提供するために開口23で構成されるとよい。一例として、小型のタンブル乾燥機については狭窄器16の表面の35%が開口23であるとよく、大型のタンブル乾燥機については狭窄器16の表面の50%が開口23であるとよい。個々の開口は一般に約3mmである。 Further, the proportion of openings 23 on the surface of the constrictor 16 affects the distribution of airflow over the surface of the evaporator 15. In order to obtain the desired airflow distribution over the surface of the evaporator, the proportion of openings depends on the size of the airflow duct 18 and thus the size of the tumble dryer 1. However, at least one-third of the surface of the constrictor 16 may be configured with openings 23 to provide the desired airflow distribution. As an example, for a small tumble dryer, 35% of the surface of the constrictor 16 may be an opening 23, and for a large tumble dryer, 50% of the surface of the constrictor 16 may be an opening 23. The individual openings are generally about 3 mm.

複数の開口23を備えた狭窄器16は異なる方法で設計されるとよい。狭窄器16の形状は空気流ダクト18に嵌るように長方形板の形状を有するとよい。空気流ダクト18の対応する設計に合うように他の代替実施形態が可能である。 The constrictor 16 with the plurality of openings 23 may be designed differently. The shape of the stenosis device 16 is preferably the shape of a rectangular plate so as to fit into the air flow duct 18. Other alternative embodiments are possible to fit the corresponding design of the airflow duct 18.

図4は狭窄器16の一実施形態を示しており、狭窄器16は、一片の板金、例えば穿孔を備えたステンレス鋼等である。穿孔は板金の表面にわたって均一に分布する。穿孔は板金を打抜くことによって作製できる。一般に、板金片の厚さは、0.5〜3mmの範囲、好ましくは約1mmであるとよい。穿孔は、例えば直径約3mmの円形又はほぼ円形の開口であるとよい。開口は例えば三角形構成で隣接する開口の間に5mm立方センチメートル(cc)の距離を備えた三角形間隔を有しているとよい。このようにして板金片全体に開口が設けられているとよい。 FIG. 4 shows an embodiment of the stenosis device 16, which is a piece of sheet metal, such as stainless steel with perforations. The perforations are evenly distributed over the surface of the sheet metal. Perforations can be made by punching out sheet metal. Generally, the thickness of the sheet metal piece is preferably in the range of 0.5 to 3 mm, preferably about 1 mm. The perforation may be, for example, a circular or substantially circular opening with a diameter of about 3 mm. The openings may have, for example, a triangular configuration with a triangular spacing of 5 mm cubic centimeters (cc) between adjacent openings. It is preferable that the opening is provided in the entire sheet metal piece in this way.

図5は狭窄器16の別の実施形態を示しており、狭窄器16が金属メッシュであり、金属ワイヤがグリッドの表面にわたって等間隔の開口を備えたグリッドを形成するように配置されている。 FIG. 5 shows another embodiment of the stenosis device 16 in which the stenosis device 16 is a metal mesh and metal wires are arranged to form a grid with evenly spaced openings across the surface of the grid.

本発明は主に幾つかの実施形態を参照して上述されてきた。しかしながら、当業者によって容易に理解されるように、上に開示されたもの以外の他の実施形態が添付の特許請求の範囲によって規定されるように本発明の範囲内で同様に可能である。 The present invention has been described primarily with reference to some embodiments. However, as will be readily appreciated by those skilled in the art, other embodiments other than those disclosed above are similarly possible within the scope of the invention as defined by the appended claims.

Claims (9)

ヒートポンプシステム(22)と、空気流を循環させるための空気流回路(21)と、を備えていて、前記空気流回路(21)が、凝縮器(19)、乾燥ドラム(11)、ファン装置(13)、空気流ダクト(18)、及び蒸発器(15)を備える、タンブル乾燥機(1)であって、前記空気流ダクト(18)が、前記蒸発器(15)の上流に配置されていて複数の開口(23)を備えた狭窄器(16)を備えることを特徴とするタンブル乾燥機。 A heat pump system (22) and an air flow circuit (21) for circulating an air flow are provided, and the air flow circuit (21) includes a condenser (19), a drying drum (11), and a fan device. A tumble dryer (1) comprising (13), an airflow duct (18), and an evaporator (15), wherein the airflow duct (18) is located upstream of the evaporator (15). A tumble dryer comprising a squeezer (16) with a plurality of openings (23). 前記狭窄器(16)は、前記空気流ダクト(18)の断面にわたって分布した複数の開口(23)が設けられていて、空気が前記狭窄器(16)の前記狭窄器(16)の第一側(A)から前記狭窄器(16)の第二側(B)へ流れるときに前記空気流ダクト(18)内を循環する前記空気流の圧力低下を生じさせるように適合されており、前記狭窄器(16)の開口(23)が前記蒸発器(15)の表面にわたって前記空気流を分布するように適合されている、請求項1に記載のタンブル乾燥機(1)。 The stenosis device (16) is provided with a plurality of openings (23) distributed over the cross section of the air flow duct (18), and air is the first of the stenosis device (16) of the stenosis device (16). It is adapted to cause a pressure drop in the airflow circulating in the airflow duct (18) as it flows from the side (A) to the second side (B) of the constrictor (16). The tumble dryer (1) according to claim 1, wherein the opening (23) of the constrictor (16) is adapted to distribute the airflow over the surface of the evaporator (15). 前記開口(23)が前記狭窄器(16)の表面の少なくとも1/3を構成する、請求項1又は2に記載のタンブル乾燥機(1)。 The tumble dryer (1) according to claim 1 or 2, wherein the opening (23) constitutes at least one-third of the surface of the stenosis device (16). 前記狭窄器(16)と前記蒸発器(15)の表面との間の距離(d)が、0〜300mm、好ましくは10mm〜40mmである、請求項1から3のいずれか一項に記載のタンブル乾燥機(1)。 The method according to any one of claims 1 to 3, wherein the distance (d) between the stenosis device (16) and the surface of the evaporator (15) is 0 to 300 mm, preferably 10 mm to 40 mm. Tumble dryer (1). 前記狭窄器(23)が穿孔板である、請求項1から4のいずれか一項に記載のタンブル乾燥機(1)。 The tumble dryer (1) according to any one of claims 1 to 4, wherein the stenosis device (23) is a perforated plate. 前記穿孔板が金属メッシュである、請求項1から4のいずれか一項に記載のタンブル乾燥機(1)。 The tumble dryer (1) according to any one of claims 1 to 4, wherein the perforated plate is a metal mesh. 回転可能な前記ドラム(11)が、空気入口開口を備えた円形後方壁と、空気出口開口を備えたラジアル円筒壁と、を備える、請求項1から6のいずれか一項に記載のタンブル乾燥機。 The tumble drying according to any one of claims 1 to 6, wherein the rotatable drum (11) comprises a circular rear wall with an air inlet opening and a radial cylindrical wall with an air outlet opening. Machine. 前記ドラム(11)の円筒外周の外側の空間がフィルタ(12)に通じるダクトとして構成されている、請求項7に記載のタンブル乾燥機。 The tumble dryer according to claim 7, wherein the space outside the outer circumference of the cylinder of the drum (11) is configured as a duct leading to the filter (12). フィルタ(12)がドラム(11)の下方に配置されている、請求項7又は8に記載のタンブル乾燥機。 The tumble dryer according to claim 7 or 8, wherein the filter (12) is arranged below the drum (11).
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