JP2008237905A - Laundry machine - Google Patents

Laundry machine Download PDF

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Publication number
JP2008237905A
JP2008237905A JP2008064727A JP2008064727A JP2008237905A JP 2008237905 A JP2008237905 A JP 2008237905A JP 2008064727 A JP2008064727 A JP 2008064727A JP 2008064727 A JP2008064727 A JP 2008064727A JP 2008237905 A JP2008237905 A JP 2008237905A
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Prior art keywords
water
circulation
heater
washing machine
tank
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JP2008064727A
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Japanese (ja)
Inventor
Soeng-Hun Kim
成勳 金
Shoen Hyo
▲尚▼淵 表
Zairyu Boku
在龍 朴
恩淑 ▲房▼
Eun Suk Bang
Ji-Hoon Park
志▲フン▼ 朴
Odo Ryu
梧道 柳
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Samsung Electronics Co Ltd
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Samsung Electronics Co Ltd
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    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F39/00—Details of washing machines not specific to a single type of machines covered by groups D06F9/00 - D06F27/00 
    • D06F39/08—Liquid supply or discharge arrangements
    • D06F39/083—Liquid discharge or recirculation arrangements
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F37/00—Details specific to washing machines covered by groups D06F21/00 - D06F25/00
    • D06F37/42—Safety arrangements, e.g. for stopping rotation of the receptacle upon opening of the casing door
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F39/00—Details of washing machines not specific to a single type of machines covered by groups D06F9/00 - D06F27/00 
    • D06F39/04—Heating arrangements
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F39/00—Details of washing machines not specific to a single type of machines covered by groups D06F9/00 - D06F27/00 
    • D06F39/08—Liquid supply or discharge arrangements

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Detail Structures Of Washing Machines And Dryers (AREA)
  • Main Body Construction Of Washing Machines And Laundry Dryers (AREA)
  • Control Of Washing Machine And Dryer (AREA)

Abstract

<P>PROBLEM TO BE SOLVED: To provide a laundry machine which have a structure preventing overheat of a heater. <P>SOLUTION: This laundry machine has a water tank containing laundry water, a rotation vessel placed in the water tank, a heater for heating the water in the water tank, and a circulation apparatus for supplying the water in the water tank to the rotation vessel. A circulation hole for introducing water to the circulation apparatus is made at a position which is equal to or higher than the position of the heater. With this structure, the water level is prevented from getting lower than the position of the heater even when the circulation apparatus is being operated and overheat of the heater can be prevented. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

本発明は、洗濯機に係り、特に、洗濯水を循環させる循環装置及び洗濯水を加熱するヒーターを備えた洗濯機に関する。   The present invention relates to a washing machine, and more particularly to a washing machine provided with a circulation device for circulating washing water and a heater for heating the washing water.

一般に、洗濯機は、ケースの内部に上下方向に沿って配置された回転軸を中心に運動する洗濯槽及びパルセーターを備えた、いわゆるパルセータータイプ洗濯機と、ケースの内部に略水平方向に沿って配置された回転軸を中心に回転する洗濯槽を備えた、いわゆるドラム洗濯機とに大別される。   Generally, a washing machine includes a so-called pulsator type washing machine having a washing tub and a pulsator that move around a rotation axis arranged in the vertical direction inside the case, and a substantially horizontal direction inside the case. It is divided roughly into what is called a drum washing machine provided with the washing tub which rotates centering on the rotating shaft arrange | positioned along.

このようなドラム洗濯機の一例が、大韓民国公開特許公報第１０−２００７−２３１４６号（特許文献１）に開示されている。   An example of such a drum washing machine is disclosed in Korean Patent Publication No. 10-2007-23146 (Patent Document 1).

この特許文献１に開示された洗濯機は、一側が開口された筒状のケースと、ケースの内部に洗濯水を収容できるように設けられるタブと、タブの内部に水平方向に沿って配置された回転軸を中心に回転可能に設置されるドラムと、タブの内側下部に、タブ内に収容された洗濯水を加熱するように配置される電気ヒーターと、を備えている。   The washing machine disclosed in Patent Document 1 is arranged along a horizontal direction in a cylindrical case with one side opened, a tab provided so that washing water can be accommodated inside the case, and the inside of the tab. A drum rotatably installed around the rotating shaft, and an electric heater disposed at the inner lower portion of the tab so as to heat washing water contained in the tab.

タブの下側には排水管及び排水ポンプがそれぞれ設けられ、排水管の一側には、タブ中の洗濯水を循環させうるように循環流路の一側が相互連通するように連結されており、循環流路の他端は上方に延在してタブの上部領域と相互連通するように連結されている。循環流路の中には洗濯水を循環させるための循環ポンプが備えられている。   A drain pipe and a drain pump are provided below the tab, respectively, and one side of the circulation channel is connected to one side of the drain pipe so that the wash water in the tab can be circulated. The other end of the circulation channel extends upward and is connected to the upper region of the tab. A circulation pump for circulating the wash water is provided in the circulation channel.

このような洗濯機は、給水が完了すると水位センサーで水位を感知し、水位がヒーター安全水位以上であるとヒーターを動作させて水を加熱する。   Such a washing machine senses the water level with a water level sensor when the water supply is completed, and heats the water by operating the heater if the water level is higher than the heater safe water level.

上記特許文献１に開示された従来の洗濯機は、タブの下側に排水管が連結され、排水管の一側に相互連通するように循環流路が連結されているので、循環ポンプを駆動する場合、水槽の水が循環流路を通って回転ドラム内に供給されるが、この時、水槽と排水管との連結部が、水槽内に設置された電気ヒーターの設置高さよりも低い位置に設けられるため、水槽内の水位が電気ヒーターの設置高さよりも低くなる場合が発生してしまう。こうなると、電気ヒーターは空気と接触して過熱され、電気ヒーターの破損及び火災の発生につながるという恐れがある。   In the conventional washing machine disclosed in Patent Document 1, the drain pipe is connected to the lower side of the tab, and the circulation channel is connected to one side of the drain pipe so that the circulation pump is driven. In this case, the water in the aquarium is supplied into the rotating drum through the circulation channel. At this time, the connecting portion between the aquarium and the drain pipe is lower than the installation height of the electric heater installed in the aquarium. Therefore, the water level in the water tank may be lower than the installation height of the electric heater. If this happens, the electric heater may overheat in contact with air, leading to damage to the electric heater and the occurrence of a fire.

特に、水位センサーの故障などによってヒーター安全水位以下であるにもかかわらずに電気ヒーターが稼動される場合、循環ポンプの駆動によって水槽内の水は循環ポンプに流入するので、正常水位時に循環ポンプを駆動する場合におけるよりも水位がより低くなり、結果として電気ヒーターの過熱による電気ヒーターの破損及び火災の危険性が増加するという問題点があった。
大韓民国公開特許公報第１０−２００７−２３１４６号 In particular, when the electric heater is operated even if the water level sensor is below the safe water level due to a malfunction of the water level sensor, the water in the tank flows into the circulation pump by driving the circulation pump. There has been a problem that the water level is lower than in the case of driving, and as a result, the risk of fire of the electric heater is increased due to overheating of the electric heater.
Korean Published Patent Publication No. 10-2007-23146

本発明は上記の従来における問題点を解決するためのもので、その目的は、ヒーターの過熱を防止する構造を備えた洗濯機を提供することにある。   The present invention is to solve the above-described conventional problems, and an object of the present invention is to provide a washing machine having a structure for preventing overheating of a heater.

上記の目的を達成するために、本発明は、洗濯物を洗濯する洗濯機において、水槽と、前記水槽内に回転可能に設けられ、洗濯物を収容する回転槽と、前記水槽に取り付けられ、前記水槽内の水を加熱するヒーターと、前記水槽の水を前記回転槽に供給する循環装置と、を備え、前記水槽には、前記ヒーターの設置高さと等しいか高い位置に形成され、前記循環装置に水を流入させる循環穴が設けられたことを特徴とする。   In order to achieve the above object, the present invention provides a washing machine for washing laundry, a water tub, a rotation tub that is rotatably provided in the water tub, and is attached to the water tub. A heater for heating the water in the water tank and a circulation device for supplying the water in the water tank to the rotating tank, the water tank being formed at a position equal to or higher than the installation height of the heater, the circulation A circulation hole for allowing water to flow into the apparatus is provided.

前記循環穴は、前記回転槽の下面の高さよりも低い位置に形成されることができる。   The circulation hole may be formed at a position lower than the height of the lower surface of the rotating tub.

前記循環穴は、前記水槽の前面部または円筒部に形成されることができる。   The circulation hole may be formed in a front surface portion or a cylindrical portion of the water tank.

前記循環装置は、前記水槽の外面に設けられた循環ポンプと、前記循環ポンプと回転槽との間に設けられた循環管と、を含むことができる。   The circulation device may include a circulation pump provided on the outer surface of the water tank, and a circulation pipe provided between the circulation pump and the rotary tank.

上記洗濯機は、前記水槽の水を排水させる排水装置をさらに備えることができ、前記水槽の下部には、前記排水装置に水を流出させるように排水穴が形成される。   The washing machine may further include a drainage device that drains the water in the aquarium, and a drainage hole is formed in the lower portion of the aquarium so as to allow water to flow out to the drainage device.

上記洗濯機は、前記循環装置と前記排水装置を動作させるための単一の駆動ポンプと、
前記単一の駆動ポンプの出口側に配置され、水の流路を可変させる流路切換弁と、をさらに備えることができる。 The washing machine includes a single drive pump for operating the circulation device and the drainage device,
A flow path switching valve disposed on the outlet side of the single drive pump and configured to vary the flow path of water.

前記水槽は、下部に凹入形成されて前記ヒーターが装着されるヒーター収容部を含み、このヒーター収容部には排水穴が形成されることができる。   The water tank may include a heater housing portion that is recessed in a lower portion and to which the heater is mounted, and a drain hole may be formed in the heater housing portion.

上記の目的を達成するために、本発明は、洗濯物を洗濯する洗濯機において、水槽と、前記水槽内に回転可能に設けられ、洗濯物を収容する回転槽と、前記水槽内に取り付けられ、前記水槽の水を加熱するヒーターと、前記水槽の水を前記回転槽に供給する循環装置と、前記水槽の水を排水させる排水装置と、を備え、前記水槽は、前記排水装置に水を排出するための排水穴と、前記循環装置に水を排出するための循環穴とを備え、前記循環穴は、前記ヒーターの設置高さよりも所定高さ高い位置に形成されたことを特徴とする。   In order to achieve the above object, the present invention provides a washing machine for washing laundry, a water tub, a rotation tub that is rotatably provided in the water tub, and that is attached to the water tub. A heater for heating the water in the water tank, a circulation device for supplying the water in the water tank to the rotating tank, and a drainage device for draining the water in the water tank. A drainage hole for discharging and a circulation hole for discharging water to the circulation device, wherein the circulation hole is formed at a position that is a predetermined height higher than the installation height of the heater. .

前記水槽は、下部に凹入形成されて前記ヒーターが装着されるヒーター収容部を含み、このヒーター収容部には排水穴が形成されることができる。   The water tank may include a heater housing portion that is recessed in a lower portion and to which the heater is mounted, and a drain hole may be formed in the heater housing portion.

前記循環穴は、前記回転槽の下面高さよりも低い位置に形成されることができる。   The circulation hole may be formed at a position lower than a lower surface height of the rotating tub.

前記循環穴の下端の高さは、前記ヒーターの上端の高さと実質的に同じでありうる。   The height of the lower end of the circulation hole may be substantially the same as the height of the upper end of the heater.

本発明の一実施例による洗濯機は、水槽の下部に設けられた排水穴とは別に、ヒーターの設置高さよりも高い位置に循環穴を設けたため、循環装置を稼動する場合にも水位がヒーター設置高さより低い位置に下がるのが防止され、ヒーターの過熱を防止することができ、かつ、排水または脱水行程時には、水槽の水が排水穴を通って外部に排出されるので、水槽内に水が残留するのを防止することができる。   In the washing machine according to the embodiment of the present invention, the circulation hole is provided at a position higher than the installation height of the heater separately from the drainage hole provided in the lower part of the water tank. It is possible to prevent the heater from being lowered to a position lower than the installation height, to prevent overheating of the heater, and during the drainage or dehydration process, the water in the tank is discharged to the outside through the drainage hole. Can be prevented from remaining.

なお、水位感知部の故障などによって水位が正確に感知されず、低い水位であるにも拘わらずヒーター及び循環ポンプが稼動される場合、ヒーターの発熱部よりも高い水位の水のみが循環穴に流入するため、ヒーターの過熱を防止することができる。   In addition, when the water level is not accurately detected due to a failure of the water level detection unit and the heater and the circulation pump are operated even though the water level is low, only water having a higher water level than the heat generation unit of the heater will enter the circulation hole. Since it flows in, the heater can be prevented from overheating.

なお、循環穴が従来技術における循環穴に比べて上側に位置するため、対流により上昇した高温の水を回転槽内に供給することができる。   In addition, since a circulation hole is located above the circulation hole in a prior art, the high temperature water raised by the convection can be supplied in a rotation tank.

以下、本発明の好適な実施例を、添付の図面を参照しつつ詳細に説明する。   Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

図１は、本発明の一実施例による洗濯機の断面図である。   FIG. 1 is a cross-sectional view of a washing machine according to an embodiment of the present invention.

本発明の一実施例による洗濯機は、図１に示すように、外観を形成するキャビネット１０と、キャビネット１０の内部に設けられ、洗濯水が収容されるドラム型の水槽２０と、水槽２０の内部に回転可能に設置される回転槽３０と、水槽２０の内部に洗剤及び洗濯水を供給する給水装置４０と、水槽２０内の洗濯水を外部に排水する排水装置５０と、水槽２０内の洗濯水を回転槽３０の内部に供給する循環装置６０と、を備えている。   As shown in FIG. 1, a washing machine according to an embodiment of the present invention includes a cabinet 10 that forms an appearance, a drum-type water tank 20 that is provided inside the cabinet 10 and stores washing water, and a water tank 20. A rotating tub 30 rotatably installed inside, a water supply device 40 for supplying detergent and washing water to the inside of the aquarium 20, a drainage device 50 for draining the washing water in the aquarium 20 to the outside, And a circulation device 60 for supplying washing water to the inside of the rotary tub 30.

キャビネット１０は、略ボックス形状を有し、キャビネット１０の前面には、衣類のような洗濯物を回転槽３０に投入したり、回転槽３０から取り出したりすることができるように入口部１１が形成され、入口部１１の一側には、入口部１１を開閉するようにドア１２がヒンジ結合される。   The cabinet 10 has a substantially box shape, and an entrance portion 11 is formed on the front surface of the cabinet 10 so that laundry such as clothes can be put into and taken out of the rotary tub 30. The door 12 is hinged to one side of the inlet portion 11 so as to open and close the inlet portion 11.

キャビネット１０内の水槽２０は、中央に入口２１ａが形成された前面部２１と、後述する駆動モーター１３が設置される後面部２２と、前面部２１と後面部２２とを連結する円筒部２３と、を備えている。   The water tank 20 in the cabinet 10 includes a front surface portion 21 having an inlet 21a formed at the center, a rear surface portion 22 on which a drive motor 13 described later is installed, and a cylindrical portion 23 that connects the front surface portion 21 and the rear surface portion 22. It is equipped with.

前面部２１には、キャビネット１０の入口部１１と水槽２０の入口２１ａとの間に設けられ、洗濯水の漏れを防止するダイアフラム２４と、ダイアフラム２４の内側に設けられ、衣類のような洗濯物が容易に投入及び取り出しされるようにガイドする案内部材２５が設置される。   The front surface portion 21 is provided between the inlet portion 11 of the cabinet 10 and the inlet portion 21a of the water tank 20, and is provided inside the diaphragm 24 to prevent the leakage of washing water. A guide member 25 is provided for guiding so as to be easily inserted and removed.

また、ダイアフラム２４には、給水装置４０から流入する洗濯水を水槽２０内に供給するための供給穴２４ａが形成される。   Further, the diaphragm 24 is formed with a supply hole 24 a for supplying the washing water flowing from the water supply device 40 into the water tank 20.

また、円筒部２３の下部内側には、衣類のような洗濯物がより效果的に洗濯されるように洗濯水を加熱するヒーター２６が設置されるが、ヒーター２６が水槽２０または回転槽３０と接するのを防止して洗濯水を效果的に加熱するように、水槽２０には下側に傾斜して凹入形成されたヒーター収容部２３ａが設けられ、このヒーター収容部２３ａにヒーター２６が固着される。   In addition, a heater 26 for heating the washing water is installed inside the lower portion of the cylindrical portion 23 so that laundry such as clothes can be washed more effectively. The heater 26 is connected to the water tank 20 or the rotary tank 30. The water tub 20 is provided with a heater accommodating portion 23a that is inclined downward and recessed so that the washing water is effectively heated to prevent contact with the heater 26, and the heater 26 is fixed to the heater accommodating portion 23a. Is done.

ヒーター２６には、電源の印加によって洗濯水の加熱のための熱を発生させる発熱部２６ａが設けられ、発熱部２６ａは複数の折曲を有する形で形成され、一定空間で最大の発熱効果を納めるように構成される。   The heater 26 is provided with a heat generating portion 26a that generates heat for heating the washing water by applying power, and the heat generating portion 26a is formed in a shape having a plurality of bends, and has the maximum heat generation effect in a fixed space. Configured to fit.

水槽２０の後側には、回転槽３０と連結された回転軸１４を回転させる駆動装置として駆動モーター１３が設置される。この駆動モーター１３は、水槽２０の後面に固定される固定子１３ａと、この固定子１３ａの外周部に回転可能に配置される回転子１３ｂと、回転子１３ｂと回転軸１４とを連結する回転板１３ｃとで構成される。   A drive motor 13 is installed on the rear side of the water tank 20 as a drive device that rotates the rotary shaft 14 connected to the rotary tank 30. The drive motor 13 includes a stator 13 a that is fixed to the rear surface of the water tank 20, a rotor 13 b that is rotatably disposed on the outer periphery of the stator 13 a, and a rotation that connects the rotor 13 b and the rotating shaft 14. It is comprised with the board 13c.

水槽２０の内部に設置される回転槽３０は、中央に入口３１ａが形成された前面部３１と、駆動モーター１３と連結される後面部３２と、前面部３１と後面部３２とを連結する円筒部３３と、を備えている。   The rotary tank 30 installed in the water tank 20 includes a front surface portion 31 having an inlet 31a formed at the center, a rear surface portion 32 connected to the drive motor 13, and a cylinder connecting the front surface portion 31 and the rear surface portion 32. Part 33.

回転槽３０の円筒部３３の内周面には、回転槽３０が回転する時に内部の洗濯物をかき上げてから落下させる複数のリフター３３ａが設けられ、また、洗濯水の出入が可能なように複数の通穴３３ｂが形成される。したがって、回転槽３０が高速で回転する場合、遠心力により洗濯水が通穴３３ｂを通って回転槽３０の外部に排出される。   A plurality of lifters 33a are provided on the inner peripheral surface of the cylindrical portion 33 of the rotating tub 30 so that the laundry is scraped and dropped when the rotating tub 30 rotates. A plurality of through holes 33b are formed. Accordingly, when the rotating tub 30 rotates at a high speed, the washing water is discharged to the outside of the rotating tub 30 through the through hole 33b by centrifugal force.

キャビネット１０内部の水槽２０の上部には、給水装置４０が設けられる。給水装置４０は、キャビネット１０内に流入する洗濯水の給水を制御する給水弁４１と、洗剤を収容する洗剤供給ユニット４２と、給水弁４１と洗剤供給ユニット４２とを連結する第１給水管４３と、洗剤供給ユニット４２を通りながら洗剤が溶解された洗濯水を水槽２０内に供給するための第２給水管４４と、を備えている。したがって、水槽２０の内部に供給される洗濯水は、洗剤供給ユニット４２を通りながら洗剤供給ユニット４２内に収容されている洗剤が溶解された状態で水槽２０に供給される。   A water supply device 40 is provided on the upper part of the water tank 20 inside the cabinet 10. The water supply device 40 includes a water supply valve 41 that controls supply of washing water flowing into the cabinet 10, a detergent supply unit 42 that contains detergent, and a first water supply pipe 43 that connects the water supply valve 41 and the detergent supply unit 42. And a second water supply pipe 44 for supplying the washing water in which the detergent is dissolved into the water tank 20 while passing through the detergent supply unit 42. Therefore, the washing water supplied to the inside of the water tank 20 is supplied to the water tank 20 in a state where the detergent stored in the detergent supply unit 42 is dissolved while passing through the detergent supply unit 42.

また、排水装置５０は、水槽２０内の洗濯水をキャビネット１０の外部に排水させるために水槽２０の下方に設けられるもので、水槽２０中の水を外部に導くように、水槽２０下側のヒーター収容部２３ａに形成された排水穴２３ｂに連結される第１排水管５１と、この第１排水管５１に設置される排水ポンプ５２と、排水ポンプ５２の出口側に連結される第２排水管５３とを備える。この排水ポンプ５２は、自然排水が可能な排水構造では排水弁に取り替えられても良い。   In addition, the drainage device 50 is provided below the water tank 20 in order to drain the washing water in the water tank 20 to the outside of the cabinet 10, and the water tank 20 is disposed below the water tank 20 so as to guide the water in the water tank 20 to the outside. A first drain pipe 51 connected to a drain hole 23b formed in the heater accommodating portion 23a, a drain pump 52 installed in the first drain pipe 51, and a second drain connected to the outlet side of the drain pump 52. A tube 53. The drainage pump 52 may be replaced with a drainage valve in a drainage structure capable of natural drainage.

ここで、排水穴２３ｂは、ヒーター収容部２３ａの底面に形成されるから、排水時に水槽２０内に洗濯水が残留するのを防止し、凍結期の残水による凍結、長時間の残水による悪臭及び細菌増殖などを防ぐことができる。   Here, since the drain hole 23b is formed in the bottom surface of the heater accommodating portion 23a, it prevents the washing water from remaining in the water tank 20 during drainage, freezes due to residual water in the freezing period, and causes long-term residual water. Odor and bacterial growth can be prevented.

また、本発明の一実施例による洗濯機は、洗濯水の使用量を節減し、洗濯性能の向上のために、水槽２０中の洗濯水を回転槽３０内に供給する循環装置６０を備える。この循環装置６０は、水槽２０の前面部２１に形成された循環穴２１ｂに連結される第１循環管６１と、第１循環管６１に連結され、水槽２０中の洗濯水をポンピングして回転槽３０内に流入させる循環ポンプ６２と、循環ポンプ６２から回転槽３０の入口３１ａ側に延びる第２循環管６３と、第２循環管６３の出口に設けられる噴射ノズル６４とを備える。   In addition, the washing machine according to an embodiment of the present invention includes a circulation device 60 that supplies the washing water in the water tub 20 into the rotating tub 30 in order to reduce the amount of washing water used and improve the washing performance. This circulation device 60 is connected to a first circulation pipe 61 connected to a circulation hole 21 b formed in the front surface portion 21 of the water tank 20, and is connected to the first circulation pipe 61, and rotates by pumping the washing water in the water tank 20. A circulation pump 62 that flows into the tank 30, a second circulation pipe 63 that extends from the circulation pump 62 toward the inlet 31 a of the rotary tank 30, and an injection nozzle 64 that is provided at the outlet of the second circulation pipe 63 are provided.

循環穴２１ｂは、水槽２０の前面部２１の下部においてヒーター２６の設置面よりも所定高さ高い位置に設けられることができる。好ましくは、循環穴２１ｂは、ヒーター２６の設置面と等しいか高く且つ回転槽３０の下面３４よりは低い所定高さの位置に設けられ、循環穴２１ｂの下端がヒーター２６の上端と実質的に同じ高さとなるようにすることができる。   The circulation hole 21 b can be provided at a position higher than the installation surface of the heater 26 by a predetermined height below the front surface portion 21 of the water tank 20. Preferably, the circulation hole 21 b is provided at a predetermined height that is equal to or higher than the installation surface of the heater 26 and lower than the lower surface 34 of the rotating tank 30, and the lower end of the circulation hole 21 b is substantially the same as the upper end of the heater 26. It can be the same height.

図２Ａ及び図２Ｂは、本発明の一実施例による洗濯機の循環ポンプの動作方法を示す部分断面図である。   2A and 2B are partial cross-sectional views illustrating a method of operating a circulation pump of a washing machine according to an embodiment of the present invention.

ヒーター２６が動作している状態で循環ポンプ６２が動作すると、図２Ａに示すように、水槽２０の水が循環装置６０を通って回転槽３０に流入する。しかし、この場合、循環ポンプ６２の駆動によって水槽２０に給水された水の高さが低くなり、この水位がヒーター２６の設置高さｈ１よりも低くなると、ヒーター２６の発熱部２６ａは空気と接触して高温に過熱され、ヒーターの故障及び火災につながる危険性がある。   When the circulation pump 62 is operated while the heater 26 is operating, the water in the water tank 20 flows into the rotating tank 30 through the circulation device 60 as shown in FIG. 2A. However, in this case, when the water supplied to the water tank 20 is lowered by driving the circulation pump 62, and the water level is lower than the installation height h1 of the heater 26, the heat generating portion 26a of the heater 26 comes into contact with air. Then, there is a risk of overheating to a high temperature, leading to failure of the heater and fire.

したがって、本発明では、循環穴２１ｂの設置高さｈ２をヒーター２６の設置高さｈ１と等しいか高くすることによって、図２Ｂに示すように、循環ポンプ６２の動作有無にかかわらずにヒーター２６の発熱部２６ａは常に水に浸されるようにし、ヒーター２６が空気と接するのを根本的に防止することができる。   Therefore, in the present invention, by setting the installation height h2 of the circulation hole 21b to be equal to or higher than the installation height h1 of the heater 26, as shown in FIG. The heat generating part 26a is always immersed in water, and it is possible to fundamentally prevent the heater 26 from coming into contact with air.

また、循環穴２１ｂの下端をヒーター２６の上端と実質的に同一高さにすることができ、よって、循環装置６０による洗濯水の循環が円滑になる。   Moreover, the lower end of the circulation hole 21b can be made substantially the same height as the upper end of the heater 26, so that the circulation of the washing water by the circulation device 60 becomes smooth.

また、循環ポンプ６２は、水槽２０中の洗濯水を回転槽３０に流入させるためのポンピング力を提供するもので、水槽３０の前面部３１の方に設けられる。この位置に循環ポンプ６２を設置することによって、第１及び２循環管６１，６３の長さを最小化でき、よって、第１及び２循環管６１，６３中の残水を減らし、洗濯水の使用量を節減することができる。   The circulation pump 62 provides a pumping force for allowing the washing water in the water tank 20 to flow into the rotating tank 30, and is provided toward the front surface portion 31 of the water tank 30. By installing the circulation pump 62 at this position, the lengths of the first and second circulation pipes 61 and 63 can be minimized, so that the remaining water in the first and second circulation pipes 61 and 63 can be reduced and the washing water can be reduced. The amount used can be saved.

また、第２循環管６３は、一側が循環ポンプ６２に連結され、他側は水槽２０のダイアフラム２４を通過する。この他側の端部には、回転槽３０内に洗濯水が吹き付けられるように噴射ノズル６４が設けられる。ここで、噴射ノズル６４は、回転槽３０の入口３１ａに隣接する案内部材２５に設けられる。   The second circulation pipe 63 has one side connected to the circulation pump 62 and the other side passing through the diaphragm 24 of the water tank 20. An injection nozzle 64 is provided at the other end so that the washing water is sprayed into the rotary tub 30. Here, the injection nozzle 64 is provided in the guide member 25 adjacent to the inlet 31 a of the rotary tank 30.

好ましくは、第２循環管６３は、円形ダイアフラム２４の上側部のいずれか一箇所を通過して回転槽３０の入口３１ａに配設され、洗濯水が衣類のような洗濯物に均一に噴射されるようにする。   Preferably, the second circulation pipe 63 is disposed at the inlet 31a of the rotating tub 30 through any one of the upper portions of the circular diaphragm 24, and the washing water is uniformly sprayed onto the laundry such as clothes. So that

このように構成された本発明の一実施例による洗濯機は、排水穴２３ｂと循環穴２１ｂを別に設け、すなわち、排水穴２３ｂを水槽２０下面のヒーター収容部２３ａに形成し、循環穴２１ｂをヒーター２６の設置位置よりも所定高さ高い位置に形成することによって、循環ポンプ６２の駆動に際しては、水槽２０の水位がヒーター２６の発熱部２６ａの高さよりも低くなるのを防止できると同時に、排水に際しては排水穴２３ｂから排水がなされるようにし、水槽２０中に水が残留するのを防止することができる。   The washing machine according to the embodiment of the present invention thus configured is provided with the drain hole 23b and the circulation hole 21b separately, that is, the drain hole 23b is formed in the heater accommodating portion 23a on the lower surface of the water tank 20, and the circulation hole 21b is formed. When the circulating pump 62 is driven, the water level of the water tank 20 can be prevented from being lower than the height of the heat generating portion 26a of the heater 26 by forming the heater 26 at a position that is a predetermined height higher than the installation position of the heater 26. When draining, drainage is performed from the drain hole 23b, and water can be prevented from remaining in the water tank 20.

図３は、本発明の一実施例による洗濯機の制御構成図で、ここでは、図１に示す装置に加えて、信号入力部７１、水位感知部７２、温度感知部７３、制御部７４及び駆動部７５が含まれる。   FIG. 3 is a control block diagram of a washing machine according to an embodiment of the present invention. Here, in addition to the apparatus shown in FIG. 1, a signal input unit 71, a water level sensing unit 72, a temperature sensing unit 73, a control unit 74, and A drive unit 75 is included.

信号入力部７１は、使用者が選択する洗濯コースと洗濯温度、脱水ＲＰＭ、すずき追加などの運転情報を制御部７４に入力し、水位感知部７２は、水槽２０に給水された水の高さを感知し、温度感知部７３は、水槽２０に給水された水の温度を感知する。   The signal input unit 71 inputs the washing course selected by the user and the operation information such as the washing temperature, the dehydration RPM, and the addition of tin to the control unit 74, and the water level sensing unit 72 is the height of the water supplied to the water tank 20. The temperature sensing unit 73 senses the temperature of the water supplied to the water tank 20.

制御部７４は、信号入力部７１から入力された運転情報によって洗濯機を制御するマイコンで、水位感知部７２で感知された水位に基づいて循環ポンプ６２とヒーター２６をオン／オフにしながら、温度感知部７３で感知された温度と設定温度とを比較してヒーター２６をオン／オフにする。   The control unit 74 is a microcomputer that controls the washing machine according to the operation information input from the signal input unit 71, while turning on / off the circulation pump 62 and the heater 26 based on the water level detected by the water level detection unit 72. The heater 26 is turned on / off by comparing the temperature sensed by the sensing unit 73 with the set temperature.

駆動部７５は、制御部７４の駆動制御信号によって駆動モーター１３、ヒーター２６、給水弁４１、排水ポンプ５２、循環ポンプ６２などを駆動させる。   The drive unit 75 drives the drive motor 13, the heater 26, the water supply valve 41, the drainage pump 52, the circulation pump 62, and the like according to the drive control signal of the control unit 74.

次に、本発明の一実施例による洗濯機の動作について説明する。   Next, the operation of the washing machine according to the embodiment of the present invention will be described.

まず、回転槽３０の内部に衣類のような洗濯物を入れ、洗剤供給ユニット４２に洗剤を投入した状態で使用者が洗濯物の種類によって洗濯コースと脱水ＲＰＭ、洗濯温度などの運転情報を選択すると、使用者の選択した運転情報が信号入力部７１を介して制御部７４に入力される。   First, the laundry such as clothes is put in the rotary tank 30, and the user selects the operation information such as the washing course, the dehydration RPM, and the washing temperature depending on the type of the laundry while the detergent is put into the detergent supply unit 42. Then, the driving information selected by the user is input to the control unit 74 via the signal input unit 71.

続いて、洗濯機を動作させると、給水弁４１が開きながら水槽２０の内部に洗濯水の供給が行われる。この時には、水槽２０に供給される洗濯水が、洗剤供給ユニット４２を経由することになるので、洗剤供給ユニット４２の洗剤は給水過程で洗濯水に溶解された状態で水槽２０の内部に供給され、水位感知部７２により適正量の洗濯水が水槽２０に供給されたと感知されたら、制御部７４は、給水弁４１をオフにし、給水を終了する。   Subsequently, when the washing machine is operated, the washing water is supplied into the water tank 20 while the water supply valve 41 is opened. At this time, since the wash water supplied to the water tank 20 passes through the detergent supply unit 42, the detergent in the detergent supply unit 42 is supplied into the water tank 20 in a state of being dissolved in the wash water in the water supply process. When the water level sensing unit 72 senses that an appropriate amount of washing water has been supplied to the water tank 20, the control unit 74 turns off the water supply valve 41 and ends the water supply.

この時、水槽２０に給水された水に、水槽２０の下側に設けられたヒーター２６が浸され、給水動作が完了した後には、ヒーター２６の稼動によって、給水された洗濯水が設定された洗濯温度に加熱される。ヒーター２６により洗濯水が設定温度に加熱された後または加熱と同時に循環ポンプ６２が動作し、水槽２０中の加熱された洗濯水を第１及び２循環管６１，６３を通して回転槽３０の内部に供給する。この時、回転槽３０内に供給される洗濯水は噴射ノズル６４を介して洗濯物に噴射されるので、洗濯物が均一に濡れながら洗濯行程が行われる。   At this time, the heater 26 provided below the water tank 20 is immersed in the water supplied to the water tank 20, and after the water supply operation is completed, the supplied wash water is set by the operation of the heater 26. Heated to washing temperature. After the washing water is heated to the set temperature by the heater 26, or simultaneously with the heating, the circulation pump 62 operates, and the heated washing water in the water tank 20 is passed through the first and second circulation pipes 61 and 63 into the rotary tank 30. Supply. At this time, the washing water supplied into the rotary tub 30 is sprayed onto the laundry through the spray nozzle 64, so that the washing process is performed while the laundry is evenly wet.

このような本発明の一実施例による洗濯機に備えられる水槽２０は、ヒーター２６の発熱部２６ａの上端と回転槽３０の円筒部３３の下面間の高さに循環穴２１ｂを形成できるので、循環ポンプ６２が動作する場合にも、水槽２０内の水位はヒーター２６の発熱部２６ａ以下の高さには下がらない。したがって、ヒーター２６が空気と直接接することから生じうるヒーター２６の過熱を防止することができる。   Since the water tub 20 provided in the washing machine according to the embodiment of the present invention can form the circulation hole 21b at the height between the upper end of the heat generating portion 26a of the heater 26 and the lower surface of the cylindrical portion 33 of the rotating tub 30, Even when the circulation pump 62 operates, the water level in the water tank 20 does not drop below the heat generating portion 26 a of the heater 26. Therefore, it is possible to prevent the heater 26 from being overheated, which may be caused by the heater 26 being in direct contact with air.

特に、水位感知部７２の故障などによって水位が正確に感知されず、低い水位にも拘わらずヒーター２６が稼働する場合があるが、この場合、循環ポンプ６２が稼動されても、ヒーター２６の発熱部２６ａより高い水位の水のみが循環穴２１ｂに流入するので、ヒーター２６の過熱が防止される。   In particular, the water level may not be accurately detected due to a failure of the water level sensing unit 72 and the heater 26 may be operated despite the low water level. In this case, even if the circulation pump 62 is activated, the heater 26 generates heat. Since only water having a higher water level than the portion 26a flows into the circulation hole 21b, overheating of the heater 26 is prevented.

また、循環穴２１ｂが従来技術における排水穴に比べて上側に位置するので、対流により上昇した高温の水を回転槽３０内に供給できるという効果がある。   Moreover, since the circulation hole 21b is located above the drainage hole in the prior art, there is an effect that high-temperature water raised by convection can be supplied into the rotary tank 30.

また、洗濯行程が終了し、排水または脱水行程時には、排水ポンプ５２の稼動によって水槽２０の水が排水穴２３ｂを通って外部に排出され、水槽２０内に水が残留するのを防止できるという効果がある。   In addition, when the washing process is completed and the drainage or dehydration process is performed, the water in the water tank 20 is discharged to the outside through the drainage holes 23b by the operation of the drainage pump 52, and the water can be prevented from remaining in the water tank 20. There is.

以下、本発明の一実施例による洗濯機の変形例について説明する。   Hereinafter, modified examples of the washing machine according to the embodiment of the present invention will be described.

図４は、本発明の一実施例による洗濯機の変形例で、水槽と循環装置とが結合された様子を示す断面図である。   FIG. 4 is a cross-sectional view illustrating a state in which a water tub and a circulation device are combined in a modification of the washing machine according to the embodiment of the present invention.

本発明の変形実施例による洗濯機の水槽２０は、円筒部２３に循環穴２１ｃが形成され、この循環穴２１ｃは、本発明の好適な一実施例と同様に、ヒーター２６の設置高さよりは高く、回転槽３０の円筒部３３下面よりは低い高さに形成される。   In the water tank 20 of the washing machine according to the modified embodiment of the present invention, a circulation hole 21c is formed in the cylindrical portion 23. The circulation hole 21c is larger than the installation height of the heater 26 as in the preferred embodiment of the present invention. The height is higher and lower than the lower surface of the cylindrical portion 33 of the rotary tank 30.

循環穴２１ｃと連通する循環装置８０は、循環穴２１ｃから流出された水を回転槽３０に供給するための第１及び２循環管８１，８３と、第１及び第２循環管８１，８３の間に設けられ、ポンピング力を提供する循環ポンプ８２と、第２循環管８３の端部に設けられた循環ノズル８４と、を備えている。   The circulation device 80 that communicates with the circulation hole 21c includes first and second circulation pipes 81 and 83 for supplying water that has flowed out of the circulation hole 21c to the rotary tank 30, and first and second circulation pipes 81 and 83. A circulation pump 82 provided between them for providing a pumping force and a circulation nozzle 84 provided at an end of the second circulation pipe 83 are provided.

このような構成によって、上記した本発明の好適な一実施例と同じ効果が得られる。   With such a configuration, the same effects as those of the preferred embodiment of the present invention described above can be obtained.

次に、本発明の他の実施例による洗濯機について説明する。   Next, a washing machine according to another embodiment of the present invention will be described.

図５は、本発明の他の実施例による洗濯機を示す断面図である。   FIG. 5 is a cross-sectional view illustrating a washing machine according to another embodiment of the present invention.

ここで、本発明の一実施例と同じ構成には同じ図面符号を付け、その説明は省略するものとする。   Here, the same components as those in the embodiment of the present invention are denoted by the same reference numerals, and the description thereof will be omitted.

本発明の他の実施例による洗濯機は、水槽２０中の水を排水させる排水装置１００と、水槽２０中の水を回転槽３０の内部に供給させる循環装置１１０と、排水装置１００と循環装置１１０を作動させる駆動ポンプ１０３と、駆動ポンプ１０３の一側に設けられて流路を切り換える流路転換弁１１２と、を備える。   The washing machine according to another embodiment of the present invention includes a drainage device 100 that drains the water in the aquarium 20, a circulation device 110 that supplies the water in the aquarium 20 to the inside of the rotating tub 30, the drainage device 100, and the circulation device. 110, and a flow path switching valve 112 that is provided on one side of the drive pump 103 and switches the flow path.

排水装置１００は、水槽２０の水を外部に導くように、水槽２０下部のヒーター収容部２３ａに形成された排水穴２３ｂに連結される第１排水管１０１と、第１排水管１０１の途中に設けられ、第１排水管１０１を開閉する排水弁１０２と、排水ポンプ１０３の出口側に連結される第２排水管１０４と、を備える。   In the middle of the first drainage pipe 101, the drainage device 100 is connected to a drainage hole 23b formed in the heater accommodating portion 23a in the lower part of the water tank 20 so as to guide the water in the water tank 20 to the outside. A drain valve 102 provided to open and close the first drain pipe 101 and a second drain pipe 104 connected to the outlet side of the drain pump 103 are provided.

循環装置１１０は、一側が、水槽２０の前面部２１に設けられた循環穴２１ｂに連結され、他側は、駆動ポンプ１０３と連結される第１循環管１１１と、一側が流路切換弁１１２と連結され、他側が回転槽３０の入口３１ａ側に延びる第２循環管１１３と、第２循環管１１３の出口に設けられる噴射ノズル１１４と、を備える。   One side of the circulation device 110 is connected to a circulation hole 21 b provided in the front surface portion 21 of the water tank 20, the other side is a first circulation pipe 111 connected to the drive pump 103, and one side is a flow path switching valve 112. And a second circulation pipe 113 whose other side extends to the inlet 31 a side of the rotary tank 30 and an injection nozzle 114 provided at the outlet of the second circulation pipe 113.

駆動ポンプ１０３は、その流入側が第１循環管１１１及び第１排水管１０１と連結され、排水行程または循環行程時に駆動されるように、単一の駆動ポンプで構成される。   The driving pump 103 is connected to the first circulation pipe 111 and the first drain pipe 101 on the inflow side thereof, and is configured as a single drive pump so as to be driven during the drainage stroke or the circulation stroke.

流路切換弁１１２は、駆動ポンプ１０３の出口側に設けられ、駆動ポンプ１０３によりポンピングされた水が第２循環管１１３または第２排水管１０４のいずれか一方に流れるように流路を切り換えるもので、通常の電動式３方弁で構成される。   The flow path switching valve 112 is provided on the outlet side of the drive pump 103, and switches the flow path so that the water pumped by the drive pump 103 flows to either the second circulation pipe 113 or the second drain pipe 104. Thus, it is composed of a normal electric three-way valve.

このような構成で、水槽２０内の加熱された水を回転槽３０に供給するために循環装置１１０を駆動させる場合、排水弁１０２を閉じ、第１循環管１１１に流入した水が第２循環管１１３側に流れるように流路切換弁１１２を動作させた状態で駆動ポンプ１０３を動作させ、水槽２０の水が回転槽３０に循環されるようにする。   In such a configuration, when the circulation device 110 is driven to supply the heated water in the water tank 20 to the rotating tank 30, the drain valve 102 is closed and the water flowing into the first circulation pipe 111 is second circulated. The drive pump 103 is operated in a state where the flow path switching valve 112 is operated so as to flow to the pipe 113 side, and the water in the water tank 20 is circulated to the rotating tank 30.

また、排水装置１００を駆動させて水槽２０の水を排水させる場合、排水弁１０２を開き、第２排水管１０４側に水が流れるように流路切換弁１１２を動作させた状態で駆動ポンプ１０３を動作させ、循環穴２１ｂ及び排水穴２３ｂを通って水槽２０の水が外部に排水されるようにする。   Further, when the drainage device 100 is driven to drain the water in the water tank 20, the drainage valve 102 is opened, and the flow pump switching valve 112 is operated so that the water flows to the second drainage pipe 104 side. The water in the water tank 20 is drained to the outside through the circulation hole 21b and the drain hole 23b.

本発明の一実施例による洗濯機の断面図である。1 is a cross-sectional view of a washing machine according to an embodiment of the present invention. 本発明の一実施例による洗濯機の循環ポンプの動作方法を示す部分断面図である。FIG. 3 is a partial cross-sectional view illustrating a method of operating a circulation pump of a washing machine according to an embodiment of the present invention. 本発明の一実施例による洗濯機の循環ポンプの動作方法を示す部分断面図である。FIG. 3 is a partial cross-sectional view illustrating a method of operating a circulation pump of a washing machine according to an embodiment of the present invention. 本発明の一実施例による洗濯機の制御ブロック図である。It is a control block diagram of a washing machine according to an embodiment of the present invention. 本発明の変形実施例による、互いに結合された水槽と循環装置を有する洗濯機の断面図である。FIG. 6 is a cross-sectional view of a washing machine having a water tank and a circulation device coupled to each other according to a modified embodiment of the present invention. 本発明の他の実施例による洗濯機の断面図である。FIG. 6 is a cross-sectional view of a washing machine according to another embodiment of the present invention.

符号の説明Explanation of symbols

１０ キャビネット
１３ 駆動モーター
２０ 水槽
２１ 前面部
２１ｂ 循環穴
２３ 円筒部
２３ａ ヒーター収容部
２３ｂ 排水穴
２６ ヒーター
２６ａ 発熱部
３０ 回転槽
４０ 給水装置
４１ 給水弁
５０ 排水装置
５２ 排水ポンプ
６０ 循環装置
６１ 第１循環管
６３ 第２循環管
６２ 循環ポンプ
７１ 信号入力部
７２ 水位感知部
７３ 温度感知部
７４ 制御部
７５ 駆動部 DESCRIPTION OF SYMBOLS 10 Cabinet 13 Drive motor 20 Water tank 21 Front part 21b Circulation hole 23 Cylindrical part 23a Heater accommodating part 23b Drain hole 26 Heater 26a Heat generating part 30 Rotary tank 40 Water supply apparatus 41 Water supply valve 50 Drainage apparatus 52 Drainage pump 60 Circulation apparatus 61 1st circulation Pipe 63 Second circulation pipe 62 Circulation pump 71 Signal input part 72 Water level sensing part 73 Temperature sensing part 74 Control part 75 Drive part

Claims (15)

洗濯物を洗濯する洗濯機において、
水槽と、
前記水槽内に回転可能に設けられ、洗濯物を収容する回転槽と、
前記水槽に取り付けられ、前記水槽内の水を加熱するヒーターと、
前記水槽の水を前記回転槽に供給する循環装置と、を備え、
前記水槽には、前記ヒーターの設置高さと等しいか高い位置に形成され、前記循環装置に水を流入させる循環穴が設けられたことを特徴とする洗濯機。 In a washing machine for washing laundry,
A tank,
A rotating tub that is rotatably provided in the water tub and accommodates laundry;
A heater attached to the aquarium and heating water in the aquarium;
A circulation device for supplying water from the water tank to the rotating tank,
The washing machine, wherein the water tank is provided with a circulation hole formed at a position equal to or higher than the installation height of the heater and allowing water to flow into the circulation device. 前記循環穴は、前記回転槽の下面の高さよりも低い位置に形成されることを特徴とする、請求項１に記載の洗濯機。   The washing machine according to claim 1, wherein the circulation hole is formed at a position lower than a height of a lower surface of the rotating tub. 前記循環穴は、前記水槽の前面部に形成されることを特徴とする、請求項１に記載の洗濯機。   The washing machine according to claim 1, wherein the circulation hole is formed in a front portion of the water tank. 前記循環装置は、前記水槽の外面に設けられた循環ポンプと、前記循環ポンプと回転槽との間に設けられた循環管と、を含むことを特徴とする、請求項１に記載の洗濯機。   The washing machine according to claim 1, wherein the circulation device includes a circulation pump provided on an outer surface of the water tank, and a circulation pipe provided between the circulation pump and the rotary tank. . 前記水槽の水を排水させる排水装置をさらに備え、
前記水槽の下部には、前記排水装置に水を流出させるように排水穴が形成されたことを特徴とする、請求項１に記載の洗濯機。 A drainage device for draining the water in the tank,
The washing machine according to claim 1, wherein a drainage hole is formed in a lower part of the water tank so that water flows out to the drainage device. 前記循環装置と前記排水装置を動作させる単一の駆動ポンプと、
前記単一の駆動ポンプの出口側に配置され、水の流路を可変させる流路切換弁と、
をさらに備えることを特徴とする、請求項５に記載の洗濯機。 A single drive pump for operating the circulation device and the drainage device;
A flow path switching valve that is disposed on the outlet side of the single drive pump and varies the flow path of water;
The washing machine according to claim 5, further comprising: 前記水槽は、下部に凹入形成されて前記ヒーターが装着されるヒーター収容部を含むことを特徴とする、請求項５に記載の洗濯機。   The washing machine as set forth in claim 5, wherein the water tub includes a heater accommodating portion that is recessed and formed in a lower portion of the water tub. 洗濯物を洗濯する洗濯機において、
水槽と、
前記水槽内に回転可能に設けられ、洗濯物を収容する回転槽と、
前記水槽内に取り付けられ、前記水槽の水を加熱するヒーターと、
前記水槽の水を前記回転槽に供給する循環装置と、
前記水槽の水を排水させる排水装置と、を備え、
前記水槽は、前記排水装置に水を排出するための排水穴と、前記循環装置に水を排出するための循環穴とを備え、前記循環穴は、前記ヒーターの設置高さよりも所定高さ高い位置に形成されたことを特徴とする、洗濯機。 In a washing machine for washing laundry,
A tank,
A rotating tub that is rotatably provided in the water tub and accommodates laundry;
A heater mounted in the aquarium and heating the water in the aquarium;
A circulation device for supplying water from the water tank to the rotating tank;
A drainage device for draining the water in the aquarium,
The water tank includes a drain hole for discharging water to the drain device and a circulation hole for discharging water to the circulation device, and the circulation hole is higher by a predetermined height than the installation height of the heater. A washing machine characterized by being formed in a position. 前記水槽は、下部に凹入形成されて前記ヒーターが装着されるヒーター装着部を含むことを特徴とする、請求項８に記載の洗濯機。   The washing machine according to claim 8, wherein the water tub includes a heater mounting portion that is recessed in a lower portion and on which the heater is mounted. 前記循環穴は、前記回転槽の下面高さよりも低い位置に形成されることを特徴とする、請求項８に記載の洗濯機。   The washing machine according to claim 8, wherein the circulation hole is formed at a position lower than a lower surface height of the rotating tub. 前記循環穴の下端の高さは、前記ヒーターの上端の高さと実質的に同じであることを特徴とする、請求項８に記載の洗濯機。   The washing machine according to claim 8, wherein a height of a lower end of the circulation hole is substantially the same as a height of an upper end of the heater. 前記循環穴は、前記水槽の円筒部に形成されることを特徴とする、請求項１に記載の洗濯機。 The washing machine according to claim 1, wherein the circulation hole is formed in a cylindrical portion of the water tank. 前記循環穴の下端の高さは、前記ヒーターの上端の高さと実質的に同じであることを特徴とする、請求項１に記載の洗濯機。   The washing machine according to claim 1, wherein a height of a lower end of the circulation hole is substantially the same as a height of an upper end of the heater. 前記排水穴は、前記ヒーター収容部に形成されることを特徴とする、請求項７に記載の洗濯機。   The washing machine according to claim 7, wherein the drain hole is formed in the heater accommodating portion. 前記排水穴は、前記ヒーター収容部に形成されることを特徴とする、請求項９に記載の洗濯機。   The washing machine according to claim 9, wherein the drain hole is formed in the heater accommodating portion.
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