JPH0654789A - Dish washer - Google Patents

Abstract

PURPOSE:To achieve a reduction in noise during a draining while preventing hot water from scattering outside a sink by operating a control means to perform an intermittent operation of a drain pump early in the operation thereof. CONSTITUTION:A drain pump 4 is operated before and after a washing and before a rinsing while the drain pump 4 is operated intermittently early in the operation thereof by a control means 6. The intermittent operation is stopped before the drain pump 4 reaches the specified number of revolutions and restarted before the rotation by an inertial force is stopped. This operation is repeated. Thus, a drain discharge power of the initial operation can be lowered, hence reducing noises during a drainage. With the lowering of the drain discharge power, the hitching of a drain hose 5 is not caused thereby eliminating scattering of hot water during the drainage.

Description

【発明の詳細な説明】Detailed Description of the Invention

【０００１】[0001]

【産業上の利用分野】本発明は、食器を洗浄した後、洗
浄槽より洗浄水を排水する排水ポンプを有する食器洗い
機に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a dishwasher having a drainage pump that drains washing water from a washing tank after washing dishes.

【０００２】[0002]

【従来の技術】従来、食器洗い機は図２に示したような
構成が一般的であった。すなわち、本体１の内部に設け
られた洗浄槽２と、洗浄槽２内に収納された食器を洗浄
するために洗浄槽２内に洗浄水を吐出する洗浄水吐出ポ
ンプ３と、この洗浄槽２内の洗浄水を排水する排水ポン
プ４が設けられ、洗浄槽２の底面には洗浄槽２内の洗浄
水を加熱するためのヒータが設けられている。2. Description of the Related Art Conventionally, dishwashers have generally been constructed as shown in FIG. That is, the cleaning tank 2 provided inside the main body 1, the cleaning water discharge pump 3 for discharging cleaning water into the cleaning tank 2 for cleaning the dishes stored in the cleaning tank 2, and the cleaning tank 2 A drainage pump 4 for draining the washing water inside is provided, and a heater for heating the washing water inside the washing tank 2 is provided on the bottom surface of the washing tank 2.

【０００３】また、卓上型やフリースタンディング型の
食器洗い機では排水ポンプ４に接続した排水ホース５が
図示しない流し台のシンクの部分に延設されている。Further, in a desk-top type or free-standing type dishwasher, a drain hose 5 connected to a drain pump 4 is extended to a sink portion of a sink (not shown).

【０００４】上記構成において、運転を開始すると、図
３に示したように、まず、排水ポンプ４が運転されて洗
浄槽２内に残っていた残水が排水される。次いで、洗浄
槽２内に給水が行われ、洗浄水吐出ポンプ３およびヒー
タ５が運転されて洗浄が行われる。洗浄が終ると再び排
水ポンプ４が運転され、洗浄槽２内の洗浄水が排水され
て洗浄工程が終了する。In the above structure, when the operation is started, as shown in FIG. 3, first, the drainage pump 4 is operated to drain the residual water remaining in the cleaning tank 2. Next, water is supplied into the cleaning tank 2, and the cleaning water discharge pump 3 and the heater 5 are operated to perform cleaning. When the cleaning is completed, the drainage pump 4 is operated again, the cleaning water in the cleaning tank 2 is drained, and the cleaning process is completed.

【０００５】また、洗浄後のすすぎ工程においても洗浄
と同様に洗浄槽２内の洗浄水が排水ポンプ４で排水され
る。この排水は、卓上型等の食器洗い機では流し台のシ
ンクに排水されるものである。Also in the rinsing step after cleaning, the cleaning water in the cleaning tank 2 is drained by the drainage pump 4 as in the cleaning. This drainage is drained to the sink of a sink in a dishwasher such as a tabletop type.

【０００６】そして、特開昭６４−５５１９号公報に
は、洗浄水吐出ポンプ３を短時間で入、切する間欠運転
と、その後に洗浄水吐出ポンプ３を連続して運転する連
続運転とを組合せ、間欠運転による高い噴射圧の繰返し
噴射と、連続運転による少し低い噴射圧の連続噴射との
コンビネーションにより効率よく洗浄する食器洗い機の
運転方法が提案されている。[0006] Japanese Patent Laid-Open No. 64-5519 discloses an intermittent operation in which the cleaning water discharge pump 3 is turned on and off in a short time, and a continuous operation in which the cleaning water discharge pump 3 is continuously operated thereafter. There has been proposed a method for operating a dishwasher that efficiently performs cleaning by a combination of repeated injection of high injection pressure by combination and intermittent operation and continuous injection of slightly low injection pressure by continuous operation.

【０００７】[0007]

【発明が解決しようとする課題】このような従来の食器
洗い機では、洗浄の効率化や洗浄中の騒音の低減につい
ては配慮がされているが、排水時に発生する騒音につい
ては配慮されておらず、特に卓上型等の食器洗い機で
は、洗浄工程の前後およびすすぎ工程後にいきおいよく
排水されてシンクを叩く排水音が気になるものであっ
た。この排水音は洗浄水がシンクに排水され始めるとき
の音が大きく、また、断続的に発生するため、使用者の
不満度が高いという問題があった。In such a conventional dishwasher, consideration is given to efficiency of cleaning and reduction of noise during cleaning, but not consideration to noise generated during drainage. Especially, in a dishwasher such as a tabletop type, the sound of drainage that hits the sink before and after the washing process and after the rinsing process was annoying. This drain sound is loud when the wash water begins to be drained to the sink, and is intermittently generated, resulting in high dissatisfaction with the user.

【０００８】また、排水される洗浄水はヒータによって
加熱された熱湯であり、排水ホース５がシンクに確実に
固定されていない場合には排水時の吐出反力により排水
ホース５がシンク内で跳動し、熱湯がシンク外に飛散し
て危険を伴うという問題もあった。Also, the wash water to be drained is hot water heated by a heater, and when the drain hose 5 is not securely fixed to the sink, the drain hose 5 jumps in the sink due to the discharge reaction force during draining. However, there was a problem that hot water was scattered outside the sink, which was dangerous.

【０００９】本発明は上記問題を解決するもので、排水
時の騒音を低減するとともに、排水時に熱湯がシンク外
へ飛散することのない食器洗い機を提供することを目的
としている。The present invention solves the above problems, and an object of the present invention is to provide a dishwasher that reduces noise during drainage and prevents hot water from splashing outside the sink during drainage.

【００１０】[0010]

【課題を解決するための手段】本発明は上記目的を達成
するために、排水ポンプと、排水ポンプの運転を制御す
る制御手段とを備え、制御手段により排水ポンプをその
運転初期に間欠運転させるようにしたものである。In order to achieve the above-mentioned object, the present invention comprises a drainage pump and a control means for controlling the operation of the drainage pump, and the control means causes the drainage pump to intermittently operate at the initial stage of its operation. It was done like this.

【００１１】[0011]

【作用】上記構成において、排水ポンプはその運転初期
に間欠運転されるので、運転初期の排水吐出力が低くな
る。In the above structure, since the drainage pump is intermittently operated at the initial stage of its operation, the drainage discharge force at the initial stage of operation becomes low.

【００１２】[0012]

【実施例】以下、本発明の一実施例について図１および
図２を参照しながら説明する。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to FIGS.

【００１３】なお、従来例に示したものと同一部品には
同じ符号を付し説明を省略する。図２において、６は本
体１の内面下部に配設された制御手段で、排水ポンプ４
をその運転初期に間欠運転させ、また、洗浄水吐出ポン
プ３、ヒータ５等の負荷を制御するものである。The same parts as those shown in the conventional example are designated by the same reference numerals, and the description thereof will be omitted. In FIG. 2, reference numeral 6 denotes a control means arranged at the lower portion of the inner surface of the main body 1, which is a drainage pump 4
Is intermittently operated at the initial stage of its operation, and the loads of the cleaning water discharge pump 3, the heater 5, etc. are controlled.

【００１４】上記構成において、図１に示したように、
洗浄の前後とすすぎの前に排水ポンプ４が運転される
が、排水ポンプ４は制御手段６により、その運転初期に
間欠運転される。この間欠運転は、排水ポンプ４が所定
の回転数に達する前に運転停止され、慣性力による回転
が停止する前に再度運転されるという動作を繰返すもの
で、これにより、運転初期の排水吐出力を低くすること
ができ、これに伴って排水時の騒音を低減することがで
きる。In the above structure, as shown in FIG.
The drainage pump 4 is operated before and after cleaning and before rinsing, but the drainage pump 4 is intermittently operated by the control means 6 at the initial stage of its operation. In this intermittent operation, the operation of stopping the drainage pump 4 before reaching a predetermined number of revolutions and repeating the operation before the rotation due to inertial force is stopped is repeated. Can be lowered, and along with this, noise at the time of drainage can be reduced.

【００１５】また、排水吐出力が低くなることにより排
水ホース５の跳動がなくなり、したがって、排水時の熱
湯の飛散をなくすことができる。Further, since the drainage discharge force becomes low, the drainage hose 5 does not jump, so that it is possible to prevent scattering of hot water during drainage.

【００１６】なお、間欠運転の繰返し回数や間欠の間隔
は食機洗い機の排水特性により自在に設定できるもので
ある。The number of repetitions of the intermittent operation and the interval of the intermittent operation can be freely set depending on the drainage characteristics of the dishwasher.

【００１７】[0017]

【発明の効果】以上の実施例の説明から明らかなよう
に、本発明によれば、制御手段により排水ポンプをその
運転初期に間欠運転させるようにしたことにより、排水
運転初期の排水吐出力を低くして排水時の騒音を低減す
ることができるとともに、排水ホースの跳動をなくして
熱湯の飛散を防止することができる。As is apparent from the above description of the embodiments, according to the present invention, the drainage pump discharge force at the initial stage of the drainage operation can be controlled by intermittently operating the drainage pump at the initial stage of its operation by the control means. By lowering the noise, it is possible to reduce noise during drainage, and it is possible to prevent jumping of the drainage hose and prevent splashing of hot water.

【図面の簡単な説明】[Brief description of drawings]

【図１】本発明の一実施例の食器洗い機の動作特性図FIG. 1 is an operation characteristic diagram of a dishwasher according to an embodiment of the present invention.

【図２】食器洗い機の要部破断側面図[Fig. 2] Side view of the main part of the dishwasher

【図３】従来例の食器洗い機の動作特性図[Fig. 3] Operating characteristic diagram of a conventional dishwasher

【符号の説明】 ２ 洗浄槽 ４ 排水ポンプ ６ 制御手段[Explanation of symbols] 2 cleaning tank 4 drainage pump 6 control means

Claims (1)

【特許請求の範囲】[Claims] 【請求項１】食器を収納洗浄する洗浄槽と、前記洗浄槽
内の洗浄水を排水する排水ポンプと、前記排水ポンプの
運転を制御する制御手段とを備え、前記制御手段により
前記排水ポンプをその運転初期に間欠運転させる食器洗
い機。1. A washing tank for storing and washing dishes, a drainage pump for draining washing water in the washing tank, and a control means for controlling the operation of the drainage pump. The control means controls the drainage pump. A dishwasher that operates intermittently at the beginning of its operation.