JPH04144529A - Tableware washing machine - Google Patents
Tableware washing machineInfo
- Publication number
- JPH04144529A JPH04144529A JP26912590A JP26912590A JPH04144529A JP H04144529 A JPH04144529 A JP H04144529A JP 26912590 A JP26912590 A JP 26912590A JP 26912590 A JP26912590 A JP 26912590A JP H04144529 A JPH04144529 A JP H04144529A
- Authority
- JP
- Japan
- Prior art keywords
- pump
- cleaning
- motor
- impeller
- angle
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000005406 washing Methods 0.000 title claims abstract description 21
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 35
- 238000001035 drying Methods 0.000 claims abstract description 12
- 238000004140 cleaning Methods 0.000 claims description 46
- 238000007599 discharging Methods 0.000 claims description 3
- 239000007921 spray Substances 0.000 claims description 2
- 238000013459 approach Methods 0.000 abstract description 2
- 238000005086 pumping Methods 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000004851 dishwashing Methods 0.000 description 1
- 238000011010 flushing procedure Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
Landscapes
- Washing And Drying Of Tableware (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
Description
【発明の詳細な説明】
産業上の利用分野
本発明は食器の洗浄を行う食器洗い機に関するものであ
る。DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a dishwasher for washing dishes.
従来の技術
従来、この種の食器洗い機は、第３図に示すような構成
になっている。BACKGROUND OF THE INVENTION Conventionally, this type of dishwasher has a structure as shown in FIG.
すなわち、本体１内部に洗浄槽２が設けられ、この洗浄
槽２内へ、給水弁３によシ水又は湯が供給される。装置
駆動時において洗浄水は、排水孔４の他側部に連通した
ポンプ室に取り付けられ、モータ６によって駆動される
洗浄ボンデ６により、前記洗浄槽２の内部を循環する。That is, a cleaning tank 2 is provided inside the main body 1, and water or hot water is supplied into the cleaning tank 2 through a water supply valve 3. When the apparatus is driven, cleaning water is circulated inside the cleaning tank 2 by a cleaning bond 6 attached to a pump chamber communicating with the other side of the drain hole 4 and driven by a motor 6.
すなわち、この循環は、洗浄水が前記排水孔４から洗浄
ポンプ６に吸いこまれ、この洗浄ポンプ６よシ前記洗浄
槽２内底部の洗浄ノズル７に供給され、ここから噴射さ
れ、食器を洗浄した後ふたたび排水孔４に戻るという経
路で行われる。洗浄ノズル７と洗浄槽２の底部との間に
は、洗浄水加熱用のヒータ８が設けられている。また、
洗浄ノズル７の上方には、食器を整然と配置でき、洗浄
水を効果的に食器に噴射するように設計された食器かと
９が設置されている。前記食器かと９には、複数の移動
用ローラ９＆か取付けられ、本体１の前面外部へ引き出
し可能になっている。また、前記洗浄槽２の前面部には
、開閉自在な扉１ｏが取り付けられている。That is, in this circulation, washing water is sucked into the washing pump 6 from the drain hole 4, is supplied from the washing pump 6 to the washing nozzle 7 at the inner bottom of the washing tank 2, and is sprayed from there to wash the dishes. Afterwards, it returns to the drainage hole 4 again. A heater 8 for heating the cleaning water is provided between the cleaning nozzle 7 and the bottom of the cleaning tank 2. Also,
Above the washing nozzle 7, a tableware dowel 9 is installed which is designed to allow the tableware to be placed in an orderly manner and to spray cleaning water onto the tableware effectively. A plurality of moving rollers 9 & are attached to the tableware cup 9 so that it can be pulled out to the outside of the front surface of the main body 1. Furthermore, a door 1o that can be opened and closed is attached to the front surface of the cleaning tank 2.
また、前記洗浄水を機外に排出するために、排水ポンプ
１１も備えている。さらに、乾燥工程において、機内の
湿った空気を排出するための乾燥ファン１２も備えてい
る。Furthermore, a drainage pump 11 is also provided to discharge the washing water to the outside of the machine. Furthermore, in the drying process, a drying fan 12 is also provided for discharging humid air inside the machine.
ここで、従来の食器洗い機の中には洗浄ポンプ６と排水
ポンプ１１を一つのモータ６により駆動しているものも
みられる。この種のポンプの構成について第４図を用い
て説明する。洗浄ポンプの羽根車１３１Ｌと排水ポンプ
の羽根車１４１Ｌとは、モータ５のシャツ）５１Ｌに直
結されており、モータ６の両回転によってそれぞれの羽
根車も回転する。この時、洗浄ポンプ１３はボリュート
ポンプであるが、排水ポンプ１４は、渦流ポンプが使用
されているっこれは、第６図に示すように、排水ポンプ
の羽根車１４＆の回転が反時計方向（Ｘ方向）のときに
は、洗浄水は機外へ排水される（揚程側回転方向）。逆
に排水ポンプの羽根車１４１Ｌの回転が時計方向（反揚
程側回転方向）の場合には、排水ホースから排水孔４の
方へと洗浄水または空気が流れる。したがって、弁がな
くても、排水ポンプの羽根車１４＆が回転して排水して
しまうことはない。一方、ボリュートポンプにおいては
、モータ５のどちらの回転においても吐出側に圧力がか
かるので、弁機構等がない場合には、洗浄工程中にも排
水をしてしまう。ここで、この種のポンプにおいては、
第４図のようにモータのシャフト５＆が水平であるばか
シでなくて、鉛直方向になっているのもある。むしろ鉛
直方向の場合のほうが多い。Here, some conventional dishwashers have a washing pump 6 and a drain pump 11 driven by a single motor 6. The configuration of this type of pump will be explained using FIG. 4. The impeller 131L of the cleaning pump and the impeller 141L of the drain pump are directly connected to the motor 5 (shirt) 51L, and as the motor 6 rotates, the respective impellers also rotate. At this time, the cleaning pump 13 is a volute pump, but the drainage pump 14 is a vortex pump. This is because, as shown in FIG. 6, the rotation of the impeller 14 & of the drainage pump is counterclockwise ( X direction), the cleaning water is drained outside the machine (lifting head side rotation direction). On the other hand, when the impeller 141L of the drain pump rotates in a clockwise direction (rotation direction on the opposite side of the pump head), cleaning water or air flows from the drain hose toward the drain hole 4. Therefore, even if there is no valve, the impeller 14 & of the drainage pump will not rotate and drain water. On the other hand, in a volute pump, pressure is applied to the discharge side no matter which rotation of the motor 5, so if there is no valve mechanism or the like, water will be drained even during the cleaning process. Here, in this type of pump,
The shaft 5& of the motor is not horizontal as shown in Fig. 4, but is also vertical. Rather, it is more likely to be in the vertical direction.
まだ、第６図のように排水ポンプ１４と乾燥ファン１２
をモータ５の両端に取りつけて構成しているものもみら
れる。The drain pump 14 and drying fan 12 are still installed as shown in Figure 6.
There is also a structure in which the motor 5 is attached to both ends of the motor 5.
発明が解決しようとする課題
しかし、このような構造のものを見てみると、洗浄工程
中においては、洗浄ポンプの羽根車１３１Ｌが回転して
いるのはもちろんのこと、排水ポンプの羽根車１４区も
反揚程側に回転している。したがって、この排水ポンプ
の羽根車１４ａの回転により、排水ポンプ１４からは排
水孔４の方へ洗浄水または空気が流れている。この洗浄
工程中、空気の流出が多く排水孔４にまで達する場合に
は、洗浄ポンプ１３の方に空気がかみこむことによシ洗
浄ポンプ１３の能力が出なくなり、洗浄性能の確保がで
きない。また、そこまでの空気の流出が多くない場合に
も、排水ボンデ１４において、洗浄水を排出して空気を
かみこむと、排水ポンプ１４のポンプ能力がなくなり、
洗浄水がまた排水ポンプ１４の中に戻ってくる。また、
この状態では、洗浄水を排出して空気をかむ。このよう
に排水ポンプ１４は、洗浄工程中洗浄水の移動をくり返
す。Problems to be Solved by the Invention However, when looking at such a structure, it is found that during the cleaning process, not only the impeller 131L of the cleaning pump is rotating, but also the impeller 14 of the drain pump is rotating. The ward is also rotating in the opposite direction. Therefore, due to the rotation of the impeller 14a of the drain pump, cleaning water or air flows from the drain pump 14 toward the drain hole 4. During this cleaning process, if a large amount of air flows out and reaches the drain hole 4, the air will be trapped in the cleaning pump 13, and the performance of the cleaning pump 13 will be impaired, making it impossible to ensure cleaning performance. Furthermore, even if there is not a large amount of air flowing out, if the cleaning water is discharged and air is trapped in the drain bond 14, the pumping capacity of the drain pump 14 will be lost.
The wash water returns to the drain pump 14 again. Also,
In this state, the cleaning water is expelled and the air is sucked. In this way, the drain pump 14 repeatedly moves the cleaning water during the cleaning process.
したがってこのときに断続的に音感的に不快な騒音を発
生する。Therefore, at this time, acoustically unpleasant noise is generated intermittently.
そこで本発明は、この排水ポンプの洗浄工程時の洗浄ポ
ンプへの影響や騒音のない性能のよいポンプを得ること
を第１の目的としている。Therefore, the first object of the present invention is to obtain a pump with good performance that does not affect the cleaning pump or make noise during the cleaning process of the drainage pump.
また、排水ポンプと乾燥ファンが一つのモータにより駆
動する構成のものにおいても排水ポンプ性能のよいポン
プを得ることを第２の目的としている。A second objective is to obtain a pump with good drainage pump performance even in a configuration in which the drainage pump and drying fan are driven by one motor.
課題を解決するための手段
本発明の食器洗い機は、一つのモータの正逆両回転によ
り、前記洗浄ポンプと排水ポンプ、または排水ポンプと
乾燥ファンを駆動するポンプ機構とし、少なくとも一つ
のポンプの羽根車の羽根において、その反揚程側回転方
向での羽根の出口角度を、洗浄水の流出角度が９０以上
になるような角度に設定するものである。Means for Solving the Problems The dishwasher of the present invention has a pump mechanism that drives the washing pump and the drain pump, or the drain pump and the drying fan by the forward and reverse rotation of one motor, and at least one of the pump blades. In the blade of a car, the exit angle of the blade in the anti-lift side rotation direction is set to an angle such that the outflow angle of the wash water is 90 or more.
作用
本発明の食器洗い機の排水ポンプは、前記構成により、
反揚程側回転方向の場合には、その羽根車の羽根の形状
により、洗浄水に対して、圧力も水頭も与えない。すな
わちポンプとしての働きが全くなくなるので、洗浄ポン
プへの影響もなく、騒音も発生しにくいわけである。Function: The dishwasher drain pump of the present invention has the above-mentioned configuration.
In the case of rotation in the direction opposite to the head, neither pressure nor water head is applied to the cleaning water due to the shape of the blades of the impeller. In other words, since it does not function as a pump at all, it has no effect on the cleaning pump and is less likely to generate noise.
実施例
以下、本発明の一実施例を第１図および第２図にもとづ
いて説明する。EXAMPLE Hereinafter, an example of the present invention will be described based on FIGS. 1 and 2.
図において従来の第３図〜第６図における構成部品と同
一のものには同一符号を付している。本発明のポンプの
基本的構成は、第４図と同一とする。すなわち、洗浄ポ
ンプ１３と排水ポンプがモータのシャツ）ｅｉｌＬの同
軸上に取シつけられておシ、洗浄ボンデの羽根車１３ａ
と排水ポンプの羽根車がそのモータのシャフト５＆の正
逆回転によりボンデとして動作するものである。In the drawings, the same components as those in conventional FIGS. 3 to 6 are designated by the same reference numerals. The basic configuration of the pump of the present invention is the same as that shown in FIG. That is, the cleaning pump 13 and the drain pump are mounted on the same axis of the motor (eilL), and the impeller 13a of the cleaning bonder
The impeller of the drain pump operates as a bonder by the forward and reverse rotation of the motor shaft 5&.
本発明は排水ポンプの羽根車に特徴がある。The present invention is characterized by an impeller for a drainage pump.
第１図に排水ポンプの羽根車１５５１Ｌの羽根の形状を
示す。第１図すにおいて、羽根の最外郭の投影形状は、
第２図すに示す羽根形状と同様にし、羽根の出口角度β
を、洗浄水の流出角度αが９０以上になるような角度に
取る。また側面図（第１−ｃ図）においても正面図と同
様な形状を取る。FIG. 1 shows the shape of the blades of the impeller 1551L of the drainage pump. In Figure 1, the projected shape of the outermost part of the blade is
The blade shape is the same as shown in Figure 2, and the blade exit angle β
is set at such an angle that the flushing water outflow angle α is 90 or more. Also, the side view (Fig. 1-c) has the same shape as the front view.
すなわち、３次元的に見て洗浄水の流出角度がすべて９
０°以上になるような曲面を取る。この形状が最も効果
がある形状である。In other words, from a three-dimensional perspective, all wash water outflow angles are 9.
Take a curved surface whose angle is greater than 0°. This shape is the most effective shape.
ここで、ポンプの羽根車の羽根の形状について少し説明
をしておく。第２−＆図において、１５が羽根車の羽根
の形状を示す。βが羽根の出口角度で、αが洗浄水の流
出角度である。羽根車の円周方向の速度成分Ｕと、羽根
の出口方向の速度成分Ｗのベクトルの合成によって、決
定される洗浄水の流出速度マの流６角度αはβが小さく
なるにしたがって９０に近づく。通常のボリュートポン
プにおいてはαを８〜１６、βを２０〜３ｏに取ること
が多い。しかしながら、第２−ｂ図のように、βを非常
に小さくしてゆくとαは９０’になる。Here, I will explain a little about the shape of the blades of the pump impeller. In Figures 2-2, 15 indicates the shape of the blades of the impeller. β is the exit angle of the blade, and α is the outflow angle of the wash water. The flow angle α of the washing water outflow velocity M, which is determined by the vector combination of the velocity component U in the circumferential direction of the impeller and the velocity component W in the exit direction of the blade, approaches 90 as β becomes smaller. . In a normal volute pump, α is often set to 8 to 16, and β is set to 20 to 3o. However, as shown in Fig. 2-b, when β is made very small, α becomes 90'.
この場合、洗浄水は前方への運動エネルギーを与えられ
ないのでポンプとしての働きをしない訳である。このと
きのβがポンプとしての限界の最小角度となる。本発明
においては、逆にこのことを利用している。In this case, the cleaning water is not given forward kinetic energy, so it does not function as a pump. β at this time becomes the minimum angle that is the limit of the pump. In the present invention, this fact is used conversely.
しかしながら、ポンプの能力によっては、２次元的に羽
根形状を作っても十分に効果を発揮できる場合もある。However, depending on the capacity of the pump, it may be possible to produce sufficient effects even if the blade shape is created two-dimensionally.
また、逆の揚程側の回転方向における羽根の形状におい
ては垂直面として図示しているが、当然ながらより効率
の良い形状にしてももちろん何も問題はない。Further, although the shape of the blade in the direction of rotation on the opposite lift side is shown as a vertical plane, it goes without saying that there is no problem in using a more efficient shape.
また、一つのモータにより排水ポンプと乾燥ファンを駆
動している場合においても同様の作用によシ、排水ボン
デ１４の反揚程側回転、すなわち乾燥時において、静か
な排水ボンデ１４を得ることができる。Further, even when the drain pump and the drying fan are driven by one motor, the same effect makes it possible to obtain a quiet drain bond 14 when the drain bond 14 rotates on the side opposite to the lifting head, that is, during drying. .
発明の効果
以上のように本発明では、一つのモータの正逆回転によ
シ、洗浄ポンプと排水ポンプや、排水ポンプと乾燥ファ
ンを駆動する機構において、そのポンプの羽根車の羽根
の出口角度を、洗浄水の流出角度が９００以上になるよ
うにしたことで、洗浄時における洗浄ポンプへの影響を
防ぎ、洗浄性能を確保することができる。また、洗浄時
や排水時における騒音の著しい低減を図ることができる
。Effects of the Invention As described above, in the present invention, in a mechanism for driving a washing pump and a drainage pump, or a drainage pump and a drying fan, by rotating one motor in the forward and reverse directions, the outlet angle of the blades of the impeller of the pump can be changed. By setting the outflow angle of the cleaning water to be 900 degrees or more, the influence on the cleaning pump during cleaning can be prevented and cleaning performance can be ensured. Furthermore, it is possible to significantly reduce noise during cleaning and drainage.
第１図ａは本発明の実施例を示す排水ポンプの羽根車の
斜視図、第１図すは同要部正面図、第１図Ｃは同要部平
面図、第２図ａ、ｂは同実施例の動作原理図、第３図は
従来の食器洗い機の縦断面図、第４図は同要部断面図、
第５図は同要部断面図、第６図は同要部断面図を示す。
１４・・・・・・排水ポンプ、１６ａ・山・・排水ポン
プの羽根車。
代理人の氏名 弁理士 小鍜治 明 ほか２名第
図
（ａＪン
（ト）
第
図Figure 1a is a perspective view of an impeller of a drainage pump showing an embodiment of the present invention, Figure 1 is a front view of the same main part, Figure 1C is a plan view of the same main part, and Figures 2a and b are A diagram of the operating principle of the same embodiment, FIG. 3 is a longitudinal sectional view of the conventional dishwasher, and FIG. 4 is a sectional view of the same essential parts.
FIG. 5 is a sectional view of the same essential part, and FIG. 6 is a sectional view of the essential part. 14... Drain pump, 16a Mountain... Drain pump impeller. Name of agent: Patent attorney Akira Okaji and two others Fig.
Claims (2)
こみ、洗浄ノズルから洗浄水を噴射する洗浄ポンプと、
洗浄水を機外に排出する排水ポンプとを備え、一つのモ
ータの正逆両回転により前記洗浄ポンプと排水ポンプを
駆動するポンプ機構とし、少なくとも一つのポンプの羽
根車の羽根の反揚程側回転方向での羽根の出口角度を、
洗浄水の流出角度が９０度以上になるような角度にした
食器洗い機。(1) a cleaning tank; a cleaning pump that sucks cleaning water from the inner bottom of the cleaning tank and sprays the cleaning water from a cleaning nozzle;
The pump mechanism includes a drainage pump for discharging cleaning water to the outside of the machine, and a pump mechanism that drives the cleaning pump and the drainage pump by forward and reverse rotation of one motor, and the blades of the impeller of at least one pump are rotated in the anti-lift side. The exit angle of the vane in the direction,
A dishwasher that is angled so that the washing water flows out at an angle of 90 degrees or more.
ァンとを備え、一つのモータの正逆両回転により前記排
水ポンプと乾燥ファンを駆動する機構とし、排水ポンプ
の羽根車の羽根を、反揚程側回転方向での羽根の出口角
度を、洗浄水の流出角度が９０度以上になるような角度
にした食器洗い機。(2) A mechanism comprising a drainage pump and a fan for discharging the air inside the machine during drying, and driving the drainage pump and drying fan by the forward and reverse rotation of one motor, and the blades of the impeller of the drainage pump, A dishwasher in which the exit angle of the blade in the rotation direction on the anti-lift side is set at an angle such that the outflow angle of washing water is 90 degrees or more.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP26912590A JP2867673B2 (en) | 1990-10-05 | 1990-10-05 | dishwasher |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP26912590A JP2867673B2 (en) | 1990-10-05 | 1990-10-05 | dishwasher |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH04144529A true JPH04144529A (en) | 1992-05-19 |
| JP2867673B2 JP2867673B2 (en) | 1999-03-08 |
Family
ID=17468038
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP26912590A Expired - Fee Related JP2867673B2 (en) | 1990-10-05 | 1990-10-05 | dishwasher |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2867673B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100394036C (en) * | 2004-06-14 | 2008-06-11 | 日立家用电器公司 | Pump for washing machine |
-
1990
- 1990-10-05 JP JP26912590A patent/JP2867673B2/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100394036C (en) * | 2004-06-14 | 2008-06-11 | 日立家用电器公司 | Pump for washing machine |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2867673B2 (en) | 1999-03-08 |
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