JPH08210289A - Drainage pump - Google Patents
Drainage pumpInfo
- Publication number
- JPH08210289A JPH08210289A JP7017922A JP1792295A JPH08210289A JP H08210289 A JPH08210289 A JP H08210289A JP 7017922 A JP7017922 A JP 7017922A JP 1792295 A JP1792295 A JP 1792295A JP H08210289 A JPH08210289 A JP H08210289A
- Authority
- JP
- Japan
- Prior art keywords
- diameter
- blade
- pump
- diameter blade
- small
- 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
Landscapes
- Structures Of Non-Positive Displacement Pumps (AREA)
- Devices For Blowing Cold Air, Devices For Blowing Warm Air, And Means For Preventing Water Condensation In Air Conditioning Units (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】この発明は、排水ポンプ、特に空
調装置のドレ−ン水を溜めるドレ−ンタンクに取り付け
られ、ドレ−ンを外部へ排水するドレ−ンポンプに関す
る。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a drain pump, and more particularly to a drain pump which is attached to a drain tank for storing drain water of an air conditioner and drains the drain to the outside.
【０００２】[0002]
【従来の技術】従来、上記の用途に使用する空調装置用
排水ポンプとして、例えば実公平３−３５９１５号公
報、実開平６−６０７９５号公報に示す液体排出用ポン
プが知られている。この液体排出用ポンプは、内面の直
径が徐々に増大する曲面で小径側に吸入口を、また大径
側に吐出口を有したポンプ本体と、ポンプ本体の内面に
接しないような間隙を有して回転する回転羽根とから構
成されている。2. Description of the Related Art Conventionally, as a drainage pump for an air conditioner used for the above-mentioned applications, liquid discharge pumps disclosed in, for example, Japanese Utility Model Publication No. 3-35915 and Japanese Utility Model Publication No. 6-60795 are known. This liquid discharge pump has a pump body having a suction port on the small diameter side and a discharge port on the large diameter side with a curved surface whose inner diameter gradually increases, and a gap that does not contact the inner surface of the pump body. And a rotary vane that rotates.
【０００３】そして、液体が回転羽根の先端に接する水
位となった際に駆動する電動モ−タにより回転羽根が所
定の方向へ回転されると、回転羽根の先端部に付着した
液体は、回転羽根の外径およびポンプ本体の内径が上方
に向かって徐々に大きくなっているため、ポンプ本体内
を上方へ流動するにしたがって液体に作用する遠心力が
徐々に大きくなることにより所定の揚程力を保ってい
る。上述した実開平６−６０７９５号公報のものは、ポ
ンプの回転軸から放射状に突出する４枚又は６枚の羽根
板を有し、その偶数羽根板を奇数羽根板の下半分をカッ
トした羽根形状を有する。また、実開平５−３８３８５
号公報は４枚の回転羽根の下部に細径の湾曲羽根を有す
る排水ポンプを開示している。同様に、実開平６−６７
８８７号公報は２枚又は４枚の大径羽根の下部に２枚又
は４枚の小径羽根を有する排水ポンプを開示している。When the rotating blade is rotated in a predetermined direction by an electric motor that is driven when the liquid reaches the water level in contact with the tip of the rotating blade, the liquid attached to the tip of the rotating blade rotates. Since the outer diameter of the blade and the inner diameter of the pump body gradually increase upward, the centrifugal force acting on the liquid gradually increases as it flows upward in the pump body, and the predetermined lift force is obtained. I keep it. The above-mentioned Japanese Utility Model Laid-Open No. 6-60795 has a blade shape in which four or six blade plates radially projecting from the rotary shaft of the pump are provided, and the even half blade plate is cut from the lower half of the odd blade plate. Have. Also, the actual Kaihei 5-38385
The publication discloses a drainage pump having a curved blade with a small diameter under the four rotary blades. Similarly, actual Kaihei 6-67
Japanese Patent No. 887 discloses a drainage pump having two or four small-diameter blades below two or four large-diameter blades.
【０００４】[0004]
【発明が解決しようとする課題】図４１は、例えば４枚
の大径羽根と４枚の小径羽根を備えた排水ポンプの構造
を示す。排水ポンプ１はポンプ本体１０と、ポンプ本体
１０の上部を覆うカバ−３０を有する。ポンプ本体１０
は円筒形のハウジング１１により形成されるポンプ室１
２と、ポンプ室１２の中央下部に設けられる吸入口１５
を形成する吸入管１４と、ポンプ室から水平方向に延び
る吐出口１７を形成する吐出管１６とを有する。FIG. 41 shows a structure of a drainage pump having, for example, four large-diameter blades and four small-diameter blades. The drainage pump 1 has a pump body 10 and a cover 30 that covers the upper portion of the pump body 10. Pump body 10
Is a pump chamber 1 formed by a cylindrical housing 11.
2 and a suction port 15 provided at the lower center of the pump chamber 12.
And a discharge pipe 16 forming a discharge port 17 extending in the horizontal direction from the pump chamber.
【０００５】図示しないモ−タの出力軸に取り付けられ
る回転体である回転羽根４０は、軸４２と軸４２に連結
されるポンプ室１２内に収容される４枚の大径羽根４４
と、大径羽根４４の下方にあって吸入管１４内に収容さ
れる４枚の小径羽根４６とを有する回転羽根４０の軸４
２とカバ−３０との間に貫通口３２とがあり、その上部
には水のはね出しを防ぐシ−ト３４が回転軸に取り付け
られる。A rotary blade 40, which is a rotary body attached to an output shaft of a motor (not shown), has a shaft 42 and four large-diameter blades 44 accommodated in the pump chamber 12 connected to the shaft 42.
And the shaft 4 of the rotary blade 40 having four small-diameter blades 46 that are accommodated in the suction pipe 14 below the large-diameter blade 44.
There is a through hole 32 between the cover 2 and the cover 30, and a seat 34 for preventing water from splashing is attached to the rotary shaft on the upper portion thereof.
【０００６】図４１の（Ａ）は、回転羽根４０部の上面
図であって、回転羽根４０がポンプ室内で矢印方向に回
転し、排水を行っている状態を示す。実験用にポンプ本
体とカバ−を透明の樹脂で作成し、回転羽根４０による
排水の状態を観察した結果を模式的に図示すると図４１
の（Ａ）のようになり、回転羽根４０の大径羽根４４の
周囲に符号Ｇ1で示すように気泡が発生していることが
判明した。この気泡は、回転羽根やポンプ室の内壁面、
吸入管の内壁面等に衝突して騒音や振動等の発生原因と
なる。本発明は、気泡の発生を低減する回転羽根を備え
た排水ポンプを提供するものである。FIG. 41A is a top view of the rotary blade 40, showing the rotary blade 40 rotating in the direction of the arrow in the pump chamber for draining. For the purpose of the experiment, the pump main body and the cover were made of transparent resin, and the result of observing the state of drainage by the rotary blades 40 is schematically shown in FIG.
(A), it was found that air bubbles were generated around the large-diameter blade 44 of the rotary blade 40 as indicated by the symbol G 1 . These bubbles are the inner surface of the rotary vane and pump chamber,
It collides with the inner wall surface of the suction pipe and causes noise and vibration. The present invention provides a drainage pump having rotary vanes that reduces the generation of bubbles.
【０００７】[0007]
【課題を解決するための手段】本発明の排水ポンプにお
いては、基本的な手段として、下端部に吸入口を設け、
上部側面に吐出口を設けたポンプ本体と、上記ポンプ本
体内に回転自在に納められた回転する回転体と、上記回
転体を回転させるモータとからなり、上記回転体は、モ
ータの出力軸に連結されるシャフト部と、シャフト部か
ら放射方向に設けられる板状の大径羽根と、大径羽根の
下部に出力軸方向に設けられた板状の小径羽根と、上記
大径羽根と小径羽根との間に上記吸入口から吐出口に流
れる液体の流れを一部せき止めて流れを制限する円盤を
備え、この円盤は中空部を有する。前記中空部を有する
円盤は、平坦な円盤であっても、またはポンプ室の底面
の曲面にならう傾斜面で形成されてもよい。さらに、各
大径羽根の外周縁は、壁部材で連結される。In the drainage pump of the present invention, as a basic means, a suction port is provided at the lower end,
A pump body having a discharge port on the upper side surface, a rotating body rotatably accommodated in the pump body, and a motor for rotating the rotating body. The rotating body is an output shaft of the motor. A shaft portion to be connected, a plate-shaped large-diameter blade provided in the radial direction from the shaft portion, a plate-shaped small-diameter blade provided in the output shaft direction below the large-diameter blade, the large-diameter blade and the small-diameter blade And a disk that partially blocks the flow of the liquid flowing from the suction port to the discharge port to limit the flow, and the disk has a hollow portion. The disc having the hollow portion may be a flat disc or an inclined surface that follows the curved surface of the bottom surface of the pump chamber. Further, the outer peripheral edge of each large-diameter blade is connected by a wall member.
【０００８】[0008]
【作用】中空部を有する円盤を大径羽根と小径羽根の間
に設けることにより、大径羽根に接する水の量が減少
し、回転体にかかる負荷が軽減するとともに、気泡の発
生も減少する。また、大径羽根の外周部を円筒状の壁部
材で囲ってあるので、排水ポンプの停止時に吐出口側か
ら吸入口側へ流れる戻り水は、この壁部材によって緩衝
され、吸入口側へスムーズに落下する。したがって、ポ
ンプハウジングの上部への噴出が防止され、騒音も低減
する。By providing a disk having a hollow portion between the large-diameter blade and the small-diameter blade, the amount of water in contact with the large-diameter blade is reduced, the load on the rotating body is reduced, and the generation of bubbles is also reduced. . Also, since the outer peripheral part of the large-diameter blade is surrounded by a cylindrical wall member, the return water flowing from the discharge port side to the suction port side when the drainage pump is stopped is buffered by this wall member and smoothly flows to the suction port side. To fall. Therefore, ejection to the upper part of the pump housing is prevented and noise is reduced.
【０００９】[0009]
【実施例】図１は、本発明の実施例に係る排水ポンプの
構造を示す説明図、図２は回転羽根の斜視図、図３はポ
ンプハウジングとカバ−との接合部を示す部分断面図で
ある。全体を符号１Ａで示す排水ポンプは、ポンプ本体
１０と、ポンプ本体１０の上部を覆うカバ−３０を有す
る。ポンプ本体１０は、直径が漸次に増加する曲面で形
成される底面１２ｂを有すると共に、底面１２ｂに連続
して立ち上がるよう形成された壁１２ａを有する円筒形
のハウジング１１により構成されるポンプ室１２と、ポ
ンプ室１２の中央下部に設けられる吸入口１５を形成す
る吸入管１４と、ポンプ室から水平方向に延びる吐出口
１７を形成する吐出管１６とを有する。FIG. 1 is an explanatory view showing the structure of a drainage pump according to an embodiment of the present invention, FIG. 2 is a perspective view of rotary vanes, and FIG. 3 is a partial sectional view showing a joint portion between a pump housing and a cover. Is. The drainage pump, generally designated by 1A, has a pump body 10 and a cover 30 that covers the upper portion of the pump body 10. The pump body 10 has a bottom 12b formed by a curved surface whose diameter gradually increases, and a pump chamber 12 formed by a cylindrical housing 11 having a wall 12a formed so as to continuously rise from the bottom 12b. The pump chamber 12 has a suction pipe 14 that forms a suction port 15 provided at the lower center of the pump chamber 12, and a discharge pipe 16 that forms a discharge port 17 that extends horizontally from the pump chamber.
【００１０】カバ−３０の上部に装備されるモ−タ５０
の出力軸５２はポンプ室内に配設される回転羽根１００
のシャフト部１１０に連結され、シャフト部１１０とカ
バー３０の間は所定の間隙を設けている。回転羽根１０
０は図２に示すように、モ−タの出力軸５２を挿入する
穴１１２を有するシャフト部１１０と、シャフト部１１
０から放射方向に設けられる板状の大径羽根１２０と、
板状の大径羽根１２０に、吸入側から吐出側に向う流れ
を一部せき止めて制限するように取付けたドーナツ状の
円盤１５０と、円盤１５０を介して大径羽根１２０の下
部に出力軸方向に設けられる板状の小径羽根１３０を有
する。即ち、大径羽根１２０と小径羽根１３０とは、大
径羽根１２０の小径羽根側の外周縁部を連結する円盤１
５０を介して接続されている。A motor 50 mounted on the top of the cover 30.
The output shaft 52 of the rotary blade 100 is disposed inside the pump chamber.
And a predetermined gap is provided between the shaft portion 110 and the cover 30. Rotary blade 10
As shown in FIG. 2, 0 is a shaft portion 110 having a hole 112 into which the motor output shaft 52 is inserted, and a shaft portion 11
A plate-shaped large-diameter blade 120 provided in a radial direction from 0;
A doughnut-shaped disk 150 attached to the plate-shaped large-diameter blade 120 so as to partially block and restrict the flow from the suction side to the discharge side, and a large-diameter blade 120 through the disk 150 at the bottom of the large-diameter blade 120 in the output axis direction. Has a plate-shaped small-diameter blade 130 provided in the. That is, the large-diameter blade 120 and the small-diameter blade 130 connect the outer peripheral edge portion of the large-diameter blade 120 on the small-diameter blade side to the disk 1
It is connected via 50.
【００１１】回転羽根１００はポンプ本体１０内に配置
され、大径羽根１２０はポンプ室１２内に及び小径羽根
１３０は吸入管１４内にそれぞれ位置している。かかる
構成により、モータ５０の駆動により回転羽根１００が
所定方向へ回転されると、小径羽根１３０で吸入口１５
から吸込まれた液体は上昇してポンプ室１２に到達し、
大径羽根１２０により吐出口１７から吐出される。この
際、円盤の存在により、上昇してくる液面がほぼ上下に
分断され、流れが制限される如く一部せき止められ、大
径羽根に接する液体は吐出されることとなる。The rotary blade 100 is arranged in the pump body 10, the large-diameter blade 120 is located in the pump chamber 12, and the small-diameter blade 130 is located in the suction pipe 14. With this configuration, when the rotary blade 100 is rotated in the predetermined direction by driving the motor 50, the small-diameter blade 130 causes the suction port 15 to move.
The liquid sucked from rises and reaches the pump chamber 12,
It is discharged from the discharge port 17 by the large-diameter blade 120. At this time, due to the existence of the disk, the rising liquid surface is divided into substantially vertical parts, partially blocked so that the flow is restricted, and the liquid in contact with the large-diameter blade is discharged.
【００１２】本実施例においては、大径羽根１２０と小
径羽根１３０はそれぞれ４枚で構成される場合を示して
いるが、これらの羽根の枚数は４枚に限らず、適宜の枚
数に設定することができる。大径羽根１２０は、平板状
のものであって、シャフト部１１０の軸線を含む平面に
配設される。小径羽根も同様にシャフト部１１０の軸線
を含む平面に配設される。大径羽根と小径羽根は同一平
面内に配設することができるが、同一平面以外に位相を
変えて配設することもできる。大径羽根１２０に取付け
られる円盤１５０は、小径羽根１３０の接続部に設けら
れ、内側に環状の中空部１５５を有する。円盤１５０
は、シャフト部１１０の軸線に直交する平面に配設さ
れ、外径寸法は大径羽根の外径寸法とほぼ等しく、半径
方向で内径方向に延び、内周部に中空部を有する。円盤
の取付位置は、大径羽根の最も小径羽根側に設けてもよ
く、また、大径羽根の高さ方向の任意の位置に設けても
よい。In this embodiment, the large-diameter blade 120 and the small-diameter blade 130 are each composed of four blades, but the number of these blades is not limited to four, and may be set to an appropriate number. be able to. The large-diameter blade 120 has a flat plate shape and is arranged on a plane including the axis of the shaft portion 110. Similarly, the small-diameter blades are also arranged on a plane including the axis of the shaft portion 110. The large-diameter blades and the small-diameter blades can be arranged in the same plane, but they can be arranged in different phases other than the same plane. The disk 150 attached to the large-diameter blade 120 is provided at the connecting portion of the small-diameter blade 130 and has an annular hollow portion 155 inside. Disk 150
Are arranged on a plane orthogonal to the axis of the shaft portion 110, have an outer diameter dimension substantially equal to the outer diameter dimension of the large-diameter blade, extend in the inner diameter direction in the radial direction, and have a hollow portion in the inner peripheral portion. The mounting position of the disc may be provided on the smallest diameter blade side of the large diameter blade, or may be provided at any position in the height direction of the large diameter blade.
【００１３】図３は、本体ハウジング１１とカバー３０
の接合構造を示す説明図である。弁本体１０全体は合成
樹脂でつくられ、ハウジング１１の上部の外周壁１８に
は、内側に向けて突出する突起１９が設けられる。この
突起１９は、例えば直径上に対向して２個設けられる。
カバー３０も同様に合成樹脂でつくられ、カバー３０の
外周部には高さ寸法を大きくしたフランジ部３４が設け
られる。合成樹脂製の突起１９は弾性を有する。したが
って、カバー３０を突起１９に向けて押し込むことによ
って、カバー３０は弁本体のハウジング１１に嵌着さ
れ、突起１９の弾性により確実にとりつけられる。２０
はシール用のパッキンである。FIG. 3 shows the main body housing 11 and the cover 30.
It is explanatory drawing which shows the joining structure of. The entire valve body 10 is made of synthetic resin, and the outer peripheral wall 18 of the upper portion of the housing 11 is provided with a protrusion 19 protruding inward. For example, two protrusions 19 are provided so as to face each other on the diameter.
Similarly, the cover 30 is also made of synthetic resin, and a flange portion 34 having a large height is provided on the outer peripheral portion of the cover 30. The protrusion 19 made of synthetic resin has elasticity. Therefore, by pushing the cover 30 toward the protrusion 19, the cover 30 is fitted into the housing 11 of the valve body, and is securely attached by the elasticity of the protrusion 19. 20
Is a packing for a seal.
【００１４】図４，図５，図６は本発明の排水ポンプに
装備される回転羽根の上面図、正面図、下面図である。
全体を符号１００で示す回転羽根は、モータの出力軸が
挿入される穴１１２を有するシャフト部１１０と、シャ
フト部１１０の外周に放射状に延びる板材で形成される
４枚の大径羽根１２０を有する。大径羽根１２０の下縁
部１２２は、テーパー状に形成される。このテーパー
は、弁本体１０のポンプ室１２の底面１２ｂの曲面であ
るテーパー形状に合わせてある。なお、大径羽根は底面
１２ｂのテーパー形状に合わせずともよい。４枚の大径
羽根の下部は、円盤１５０で連結される。この円盤１５
０は平坦なリング状のもので、内周部には中空部１５５
を有する。FIG. 4, FIG. 5, and FIG. 6 are a top view, a front view, and a bottom view of the rotary vanes equipped in the drainage pump of the present invention.
The rotary blade, generally designated by reference numeral 100, has a shaft portion 110 having a hole 112 into which the output shaft of the motor is inserted, and four large-diameter blades 120 formed of a plate material extending radially around the shaft portion 110. . The lower edge 122 of the large-diameter blade 120 is formed in a tapered shape. This taper is matched with the taper shape which is the curved surface of the bottom surface 12b of the pump chamber 12 of the valve body 10. It should be noted that the large-diameter blades do not have to match the tapered shape of the bottom surface 12b. The lower parts of the four large-diameter blades are connected by a disk 150. This disk 15
0 is a flat ring shape, and a hollow portion 155 is provided on the inner peripheral portion.
Have.
【００１５】大径羽根１２０の下方には、４枚の小径羽
根１３０が形成される。この小径羽根１３０も板材でつ
くられる。大径羽根との位相は一致させてもよいし、位
相は変えてもよい。小径羽根の外径寸法は、円盤１５０
の中空部１５５の内径寸法より大きく、形成される。し
たがって、小径羽根１３０でかき上げられて、大径羽根
１２０へ向けて送られる。また、回転羽根は、合成樹脂
で大径羽根・円盤及び小径羽根を一体的に成形してもよ
く、あるいは別体に構成してもよいのは勿論である。Below the large-diameter blade 120, four small-diameter blades 130 are formed. This small diameter blade 130 is also made of a plate material. The phase with the large-diameter blade may be matched, or the phase may be changed. The outer diameter of the small diameter blade is the disk 150
The inner diameter of the hollow portion 155 is larger than that of the hollow portion 155. Therefore, it is picked up by the small-diameter blade 130 and sent toward the large-diameter blade 120. Further, the rotary blade may be formed by integrally molding the large-diameter blade, the disk, and the small-diameter blade of synthetic resin, or may be separately configured.
【００１６】図１７は本発明の作用及び効果を説明する
説明図である。本発明の回転羽根１００を装備した排水
ポンプ１Ａにあっては、これを稼動させたときに、図の
（Ａ）に示すように、大径羽根１２０の周囲に形成され
る気泡Ｇ2は、少量しか発生しない。これは円盤１５０
の存在によって、液体と気体の混合した面が分断される
ような状態になり、流れが制限される如く一部せき止め
られることによって円盤１５０の下部の境界面Ｗ1と円
盤１５０の上部の境界面Ｗ2に分割され、上部の境界面
Ｗ2が、遠心力の作用により半径方向の外側に拡げられ
ることによる。この結果、大径羽根１２０に接する液体
の面接が減少する。そこで、負荷軽減されることとな
り、負荷トルクも軽減され、例えば負荷トルクは４０ｇ
ｒ−ｃｍ以下となるのである。また、大径羽根１２０に
対する液体の接触面積が小さくなることにより、気泡の
羽根への衝突も少なくなり、騒音は例えば４０ｄＢ以下
が実現でき、騒音振動が低減される。FIG. 17 is an explanatory view for explaining the operation and effect of the present invention. In the drainage pump 1A equipped with the rotary blades 100 of the present invention, when the drainage pump 1A is operated, the bubbles G 2 formed around the large-diameter blades 120, as shown in FIG. Only a small amount is generated. This is disk 150
Due to the presence of the above, the mixed surface of the liquid and the gas is divided, and partly dammed so that the flow is restricted, so that the boundary surface W 1 at the lower part of the disk 150 and the boundary surface at the upper part of the disk 150 are separated. It is divided into W 2 , and the upper boundary surface W 2 is expanded radially outward by the action of centrifugal force. As a result, the liquid surface contact with the large-diameter blade 120 is reduced. Therefore, the load is reduced, and the load torque is also reduced. For example, the load torque is 40 g.
It becomes r-cm or less. Moreover, since the contact area of the liquid with respect to the large-diameter blade 120 is reduced, collision of bubbles with the blade is reduced, noise of 40 dB or less can be realized, and noise vibration is reduced.
【００１７】図８，図９，図１０は、本発明の回転羽根
の他の実際例を示す上面図、正面図、下面図であり、内
周部に中空部を有する円盤がテーパーを付されて皿状に
構成されている場合を示す。即ち、全体を符号２００で
示す回転羽根は、モータ軸が挿入される穴２１２を有す
るシャフト部２１０を有し、シャフト部２１０の外周に
例えば４枚の大径羽根２２０が形成され、大径羽根の下
縁部はテーパー状に形成され、この下縁部を受ける形状
を有する皿状の円盤２５０が設けられる。大径羽根２２
０の下方には、小径羽根２３０が形成される。この小径
羽根の形状は前述した実施例と同様である。FIGS. 8, 9, and 10 are a top view, a front view, and a bottom view showing another practical example of the rotary blade of the present invention, in which a disk having a hollow portion in the inner peripheral portion is tapered. It shows the case where it is configured in a dish shape. That is, the rotary blade indicated by reference numeral 200 has a shaft portion 210 having a hole 212 into which a motor shaft is inserted, and four large diameter blades 220, for example, are formed on the outer periphery of the shaft portion 210. The lower edge portion of the disk is formed in a tapered shape, and a dish-shaped disk 250 having a shape for receiving the lower edge portion is provided. Large diameter blade 22
A small-diameter blade 230 is formed below 0. The shape of the small-diameter blade is the same as that of the above-described embodiment.
【００１８】図１１は、皿状の円盤２５０の拡大断面図
である。この円盤にあっても中央に中空部２５５を有
し、この中空部２５５の内径寸法は小径羽根２３０の外
径寸法より大きく形成される。本実施例の回転羽根を装
備する排水ポンプも先の実施例と同様の作用、効果を有
する。さらに、本実施例の回転羽根は、円盤２５０にテ
ーパーを付してあるので、羽根の停止時にも、排水が円
盤２５０に残留せずにドレーンタンク内に円滑に戻され
る。FIG. 11 is an enlarged sectional view of the dish-shaped disc 250. Even this disk has a hollow portion 255 at the center, and the inner diameter of the hollow portion 255 is formed larger than the outer diameter of the small diameter blade 230. The drainage pump equipped with the rotary vane of this embodiment also has the same operation and effect as the previous embodiment. Further, in the rotary blade of this embodiment, since the disk 250 is tapered, the drainage is smoothly returned to the drain tank without remaining on the disk 250 even when the blade is stopped.
【００１９】次に、図４〜図６の回転羽根の特徴につい
て説明する。図１２は、回転羽根の外径寸法を決定した
手法を説明する。このグラフは、横軸に回転羽根の径寸
法を、たて軸にポンプの最大揚程をとったものである。
ポンプの理論揚程Ｈは、図中の式により算出され、その
値はグラフの実線で示すカーブで示される。空調装置の
排水ポンプの場合には、熱交換器で発生する凝縮水を器
外へ排出する機能を有すればよく、大きな揚程は必要と
しない。そこで、例えば、回転羽根の設計揚程を８５０
ｍｍに設定したときには、回転羽根の直径寸法は３２．
５ｍｍとなることがわかる。排水ポンプの揚程の範囲を
考慮すると、回転羽根の直径寸法は、例えば３０〜３５
ｍｍ程度に設定することが望ましいことがわかる。Next, the features of the rotary blades shown in FIGS. 4 to 6 will be described. FIG. 12 illustrates a method of determining the outer diameter dimension of the rotary blade. In this graph, the horizontal axis represents the diameter of the rotary blade, and the vertical axis represents the maximum lift of the pump.
The theoretical pump head H is calculated by the formula in the figure, and its value is shown by the curve shown by the solid line in the graph. In the case of the drainage pump of the air conditioner, it suffices that it has a function of discharging condensed water generated in the heat exchanger to the outside of the device, and does not require a large head. Therefore, for example, the design lift of the rotary blade is set to 850.
When set to mm, the diameter of the rotary vanes is 32.
It turns out that it becomes 5 mm. Considering the range of the head of the drainage pump, the diameter of the rotary blade is, for example, 30 to 35.
It can be seen that it is desirable to set to about mm.
【００２０】図１３は、横軸に円盤１５０，２５０の中
空部１５５，２５５の径寸法を、たて軸に揚程をとった
ときに、中空部の寸法を変化させたときの揚程の変化を
示すグラフである。このグラフから、中空部の直径寸法
は、２０ｍｍが最適であって、１８〜２２ｍｍに設定す
ることが望ましいことがわかる。In FIG. 13, the horizontal axis represents the diameter of the hollow portions 155 and 255 of the disks 150 and 250, and the vertical axis represents the change in the lift when the dimensions of the hollow are changed. It is a graph shown. From this graph, it can be seen that the diameter of the hollow portion is optimally 20 mm, and is preferably set to 18 to 22 mm.
【００２１】図１４は横軸に円盤１５０，２５０の肉厚
の厚さ寸法を、たて軸に揚程をとったときに、円盤の肉
厚を変化させたときの揚程の変化を示すグラフである。
このグラフから円盤の厚さ寸法は、１〜２ｍｍ程度に設
定することが望ましいことがわかる。もっとも、円盤の
肉厚寸法は、円盤の材質や要求される機械的な強度等の
要求を考慮して決定する必要がある。FIG. 14 is a graph showing the change in the head height when the thickness of the disks 150 and 250 is plotted on the horizontal axis and the head thickness is changed on the vertical axis. is there.
From this graph, it is understood that it is desirable to set the thickness of the disk to about 1 to 2 mm. However, it is necessary to determine the thickness of the disk in consideration of requirements such as the material of the disk and required mechanical strength.
【００２２】図１５は、回転羽根とポンプハウジングの
間のクリアランス寸法を示すグラフである。横軸には回
転羽根とハウジングの各間隙寸法の変化を、たて軸に揚
程の変化を示す。間隙寸法の変化は、グラフに示すよう
に揚程に影響を与える。そこで、これらのグラフに基づ
いて、回転羽根とポンプハウジングの間の間隙寸法を設
定すればよい。FIG. 15 is a graph showing the clearance dimension between the rotary vanes and the pump housing. The abscissa axis shows the change of each gap size between the rotary blade and the housing, and the ordinate axis shows the change of the lift. The change in the gap size affects the lift as shown in the graph. Therefore, the size of the gap between the rotary vane and the pump housing may be set based on these graphs.
【００２３】図１６，図１７，図１８は本発明の更に他
の実施例を示す上面図、正面図、斜視図である。全体を
符号３００で示す回転羽根は、モータ軸が挿入される穴
３１２を有するシャフト部３１０を有し、シャフト３１
０の外周に例えば４枚の大径羽根３２０が形成される。
大径羽根３２０の下縁部はテーパー状に形成され、この
下縁部は、中心部に中空部３５５を有する円盤３５０で
載頭円錐形状の皿状の部材で一体に連結される。大径羽
根３２０の外周縁は、シリンダ状のリング状の壁部材３
６０で一体に連結される。この壁部材３６０の外周面
は、シャフト３１０の軸線を中心とする円筒面を形成す
るが、その下端部は、テーパー又は円弧面３６２に形成
されて、皿状の円盤３５０の下面に連続する。大径羽根
の下方には、小径羽根３３０が形成される。この小径羽
根の形状は前述した実施例と同様である。16, 17, and 18 are a top view, a front view, and a perspective view showing still another embodiment of the present invention. The rotary blade indicated by reference numeral 300 has a shaft portion 310 having a hole 312 into which the motor shaft is inserted.
For example, four large-diameter blades 320 are formed on the outer periphery of 0.
The lower edge of the large-diameter blade 320 is formed in a taper shape, and the lower edge is integrally connected by a disk-shaped member having a frustoconical shape with a disk 350 having a hollow portion 355 at the center. The outer peripheral edge of the large diameter blade 320 has a cylindrical ring-shaped wall member 3.
They are connected together at 60. The outer peripheral surface of the wall member 360 forms a cylindrical surface centered on the axis of the shaft 310, and the lower end portion thereof is formed into a tapered or arcuate surface 362 and is continuous with the lower surface of the dish-shaped disk 350. A small-diameter blade 330 is formed below the large-diameter blade. The shape of the small-diameter blade is the same as that of the above-described embodiment.
【００２４】図１９は、図１６〜図１８に示す回転羽根
を用いた排水ポンプの構造を示す本発明の一実施例の作
用を説明する図である。回転羽根３００がリング状の壁
部材３６０を備えることによって、回転羽根３００全体
の貫性モーメントが増加し、回転バランスが向上する。
また、排水ポンプが停止したときに、吐出口１７から吸
入口１５側へ戻る戻り水Ｗ５は、このリング状の壁部材
３６０に突き当たり、リング状の壁部材３６０の抵抗に
よって、ポンプ内に徐々に拡散される。この作用によっ
て、戻り水に起因する騒音の発生は低減される。また、
壁部材に突き当たることで戻り水の流れは緩衝され、流
れＷ６となって円滑に吸入口１５側へ落下する。したが
って、カバー３０の貫通口３２からモータ側へ向かう戻
り水の噴出水Ｗ８の発生が防止される。この際に、リン
グ状の壁部材３６０の下部に設けたテーパー又は円弧部
３６２は戻り水を円滑に吸入口側へ案内する。そこで、
噴出水によるモータの損傷や周囲への飛散もなくなる等
の効果を有する。なお、壁部材３６０は合成樹脂で別体
に形成して組立てたり、または、回転羽根３００全体を
合成樹脂で一体に製作することもできる。FIG. 19 is a view for explaining the operation of one embodiment of the present invention showing the structure of the drainage pump using the rotary vanes shown in FIGS. Since the rotary blade 300 includes the ring-shaped wall member 360, the penetrating moment of the rotary blade 300 as a whole is increased and the rotational balance is improved.
Further, when the drainage pump stops, the return water W5 returning from the discharge port 17 to the suction port 15 side hits the ring-shaped wall member 360, and gradually falls into the pump due to the resistance of the ring-shaped wall member 360. Diffused. This action reduces the generation of noise due to return water. Also,
By colliding with the wall member, the flow of the return water is buffered and becomes the flow W6, and smoothly falls to the suction port 15 side. Therefore, generation of return water jetting water W8 from the through hole 32 of the cover 30 toward the motor side is prevented. At this time, the taper or arc portion 362 provided in the lower portion of the ring-shaped wall member 360 guides the return water smoothly to the suction port side. Therefore,
This has the effect of preventing damage to the motor due to jetted water and scattering around the motor. The wall member 360 may be formed separately from a synthetic resin and assembled, or the entire rotary blade 300 may be integrally manufactured from the synthetic resin.
【００２５】図２０，図２１，図２２は、本発明の回転
羽根の実施例を示す上面図、正面図、斜視図である。回
転羽根４００は、シャフト部４１０と、シャフト部４１
０の外周に設けられる大径羽根４１５を備える。大径羽
根４１５の下縁部はテーパー状に形成され、この下縁部
は中空部４２５を有する円盤状の部材４２０で一体に連
結される。大径羽根４１５の下方には小径羽根４３０が
設けられる。大径羽根４１５の外周縁はリング状の壁部
材４４０で連結される。大径羽根４１５の上縁部４１５
ａは、リング状の壁部材４４０の上縁部４４０ａより露
出する。この大径羽根４１５の露出した部分は、回転羽
根の最大揚程を確保することに寄与する。20, 21, and 22 are a top view, a front view, and a perspective view showing an embodiment of the rotary blade of the present invention. The rotary blade 400 includes a shaft portion 410 and a shaft portion 41.
The large-diameter blade 415 provided on the outer periphery of 0 is provided. The lower edge of the large-diameter blade 415 is formed in a taper shape, and the lower edge is integrally connected by a disk-shaped member 420 having a hollow portion 425. Below the large diameter blade 415, a small diameter blade 430 is provided. The outer peripheral edge of the large-diameter blade 415 is connected by a ring-shaped wall member 440. Upper edge 415 of large-diameter blade 415
a is exposed from the upper edge portion 440a of the ring-shaped wall member 440. The exposed portion of the large-diameter blade 415 contributes to ensuring the maximum lift of the rotary blade.
【００２６】図２３，図２４，図２５は、本発明の回転
羽根の実施例を示す上面図、正面図、斜視図である。回
転羽根４５０は、シャフト部４６０と、シャフト部４６
０の外周に設けられる大径羽根４６５を備える。大径羽
根４６５の下縁部はテーパー状に形成され、この下縁部
は中空部４７５を有する円盤状の部材４７０で一体に連
結される。大径羽根４６５の下方には小径羽根４８０が
設けられる。大径羽根４６５の外周縁はリング状の壁部
材４９０で連結される。壁部材４９０の中間部に角窓４
９５を設ける。角窓４９５から露出する大径羽根４６５
は、最大揚程を確保することに寄与する。23, 24, and 25 are a top view, a front view, and a perspective view showing an embodiment of the rotary blade of the present invention. The rotary vane 450 includes the shaft portion 460 and the shaft portion 46.
The large-diameter blade 465 provided on the outer periphery of 0 is provided. The lower edge of the large-diameter blade 465 is formed in a taper shape, and the lower edge is integrally connected by a disk-shaped member 470 having a hollow portion 475. Below the large diameter blade 465, a small diameter blade 480 is provided. The outer peripheral edge of the large-diameter blade 465 is connected by a ring-shaped wall member 490. Square window 4 in the middle of wall member 490
95 is provided. Large-diameter blade 465 exposed from the square window 495
Contributes to securing the maximum head.
【００２７】図２６，図２７，図２８は、本発明の回転
羽根の実施例を示す上面図、正面図、斜視図である。回
転羽根５００は、シャフト部５１０と、シャフト部５１
０の外周に設けられる大径羽根５１５を備える。大径羽
根５１５の下縁部はテーパー状に形成され、この下縁部
は中空部５２５を有する円盤状の部材５２０で一体に連
結される。大径羽根５１５の下方には小径羽根５３０が
設けられる。大径羽根５１５の外周縁５１５ａの内側の
部分はリング状の壁部材５４０で連結される。大径羽根
５１５の外周縁５１５ａは壁部材５４０より径方向に突
出する。この大径羽根５１５の突出した部分５１５ａ
は、回転羽根の最大揚程を高めることに寄与する。突出
量は、例えば５ｍｍ以内とする。26, 27 and 28 are a top view, a front view and a perspective view showing an embodiment of the rotary blade of the present invention. The rotary blade 500 includes a shaft portion 510 and a shaft portion 51.
The large-diameter blade 515 provided on the outer periphery of 0 is provided. The lower edge portion of the large-diameter blade 515 is formed in a tapered shape, and the lower edge portion is integrally connected by a disk-shaped member 520 having a hollow portion 525. Below the large diameter blade 515, a small diameter blade 530 is provided. The inner portion of the outer peripheral edge 515a of the large-diameter blade 515 is connected by a ring-shaped wall member 540. The outer peripheral edge 515a of the large-diameter blade 515 projects radially from the wall member 540. The protruding portion 515a of the large-diameter blade 515
Contributes to increase the maximum lift of the rotary blades. The protrusion amount is, for example, 5 mm or less.
【００２８】図２９，図３０，図３１は、本発明の回転
羽根の実施例を示す上面図、正面図、斜視図である。回
転羽根５５０は、シャフト部５６０と、シャフト部５６
０の外周に設けられる大径羽根５６５を備える。大径羽
根５６５の下縁部はテーパー状に形成され、この下縁部
は中空部５７５を有する円盤状の部材５７０で一体に連
結される。大径羽根５６５の下方には小径羽根５８０が
設けられる。大径羽根５６５の外周縁５６５ａの内側の
部分はリング状の壁部材５９０で連結される。大径羽根
５６５の外周縁５６５ａは壁部材５９０より径方向に突
出する。さらに、この突出部５６５ａと同様の突出部５
６６を等間隔に設ける。この突出部は回転羽根の最大揚
程を確保することに寄与する。突出量は、例えば５ｍｍ
以内とする。29, 30, and 31 are a top view, a front view, and a perspective view showing an embodiment of the rotary blade of the present invention. The rotary vane 550 includes a shaft portion 560 and a shaft portion 56.
A large-diameter blade 565 provided on the outer periphery of 0 is provided. The lower edge of the large-diameter blade 565 is formed in a tapered shape, and the lower edge is integrally connected by a disk-shaped member 570 having a hollow portion 575. A small diameter blade 580 is provided below the large diameter blade 565. The inner portion of the outer peripheral edge 565a of the large-diameter blade 565 is connected by a ring-shaped wall member 590. The outer peripheral edge 565 a of the large-diameter blade 565 projects radially from the wall member 590. Furthermore, a protrusion 5 similar to this protrusion 565a
66 are provided at equal intervals. This protrusion contributes to ensuring the maximum lift of the rotary blade. The amount of protrusion is, for example, 5 mm
Within
【００２９】図３２，図３３，図３４は、本発明の回転
羽根の実施例を示す上面図、正面図、斜視図である。回
転羽根６００は、シャフト部６１０と、シャフト部６１
０の外周に設けられる大径羽根６１５を備える。大径羽
根６１５の下縁部はテーパー状に形成され、この下縁部
は中空部６２５を有する円盤状の部材６２０で一体に連
結される。大径羽根６１５の下方には小径羽根６３０が
設けられる。大径羽根６１５の外周縁はリング状の壁部
材６４０で連結される。壁部材６４０の下端部６４０ａ
は円盤状の部材６１５より下方へ突出する。この突出部
を設けることによって水をせき止める効果は増加され、
流量が抑制されて負荷は軽減される。32, 33 and 34 are a top view, a front view and a perspective view showing an embodiment of the rotary blade of the present invention. The rotary blade 600 includes a shaft portion 610 and a shaft portion 61.
The large-diameter blade 615 provided on the outer periphery of 0 is provided. The lower edge portion of the large-diameter blade 615 is formed in a tapered shape, and this lower edge portion is integrally connected by a disk-shaped member 620 having a hollow portion 625. Below the large diameter blade 615, a small diameter blade 630 is provided. The outer peripheral edge of the large diameter blade 615 is connected by a ring-shaped wall member 640. Lower end 640a of wall member 640
Protrudes downward from the disk-shaped member 615. By providing this protrusion, the effect of damaging water is increased,
The flow rate is suppressed and the load is reduced.
【００３０】図３５，図３６，図３７は、本発明の回転
羽根の実施例を示す上面図、正面図、斜視図である。回
転羽根６５０は、シャフト部６６０と、シャフト部６６
０の外周に設けられる大径羽根６６５を備える。大径羽
根６６５の下縁部はテーパー状に形成され、この下縁部
は中空部６７５を有する円盤状の部材６７０で一体に連
結される。大径羽根６６５の下方には小径羽根６８０が
設けられる。大径羽根６６５の外周縁はリング状の壁部
材６９０で連結される。壁部材６９０の外周部には、た
て溝６９５が設けられ、回転羽根の最大揚程を確保す
る。35, 36 and 37 are a top view, a front view and a perspective view showing an embodiment of the rotary blade of the present invention. The rotary vanes 650 include a shaft portion 660 and a shaft portion 66.
The large-diameter blade 665 provided on the outer periphery of 0 is provided. The lower edge of the large-diameter blade 665 is formed in a tapered shape, and the lower edge is integrally connected by a disk-shaped member 670 having a hollow portion 675. Below the large diameter blade 665, a small diameter blade 680 is provided. The outer peripheral edge of the large diameter blade 665 is connected by a ring-shaped wall member 690. A vertical groove 695 is provided on the outer peripheral portion of the wall member 690 to ensure the maximum lift of the rotary blades.
【００３１】図３８，図３９，図４０は、本発明の回転
羽根の実施例を示す上面図、正面図、斜視図である。回
転羽根７００は、シャフト部７１０と、シャフト部７１
０の外周に設けられる大径羽根７１５を備える。大径羽
根７１５の下縁部はテーパー状に形成され、この下縁部
は中空部７２５を有する円盤状の部材７２０で一体に連
結される。大径羽根７１５の下方には小径羽根７３０が
設けられる。大径羽根７１５の外周縁はリング状の壁部
材７４０で連結される。この壁部材７４０と円盤状の部
材７２０との間には開口部７４５が設けられる。また、
壁部材７４０の内側には軸線に向かう羽根部材７１７が
円盤状の部材７２０上に立設される。この羽根部材７１
７は大径羽根７１５を等分する位置に配設される。壁部
材７４０と円盤状の部材７２０との間に設けられる開口
部７４５は、大径羽根７１５と羽根部材７１７により区
画されて角窓を形成する。38, 39 and 40 are a top view, a front view and a perspective view showing an embodiment of the rotary blade of the present invention. The rotary blade 700 includes a shaft portion 710 and a shaft portion 71.
A large-diameter blade 715 provided on the outer periphery of 0 is provided. The lower edge of the large-diameter blade 715 is formed in a tapered shape, and the lower edge is integrally connected by a disk-shaped member 720 having a hollow portion 725. A small-diameter blade 730 is provided below the large-diameter blade 715. The outer peripheral edge of the large diameter blade 715 is connected by a ring-shaped wall member 740. An opening 745 is provided between the wall member 740 and the disc-shaped member 720. Also,
Inside the wall member 740, a blade member 717 directed toward the axis is erected on a disk-shaped member 720. This blade member 71
The large blades 715 are equally divided. The opening 745 provided between the wall member 740 and the disk-shaped member 720 is partitioned by the large diameter blade 715 and the blade member 717 to form a square window.
【００３２】上記ポンプ本体の吸入側には、その開口部
の径寸法が狭くなるテーパー部を形成する。このテーパ
ー部に対応して小径羽根の下端部にはテーパー部７３２
を設けてもよい。本実施例にあっては、壁部材外周に凸
部が露出しないため、気泡の発生が少なく、低騒音低振
動を維持して最大揚程を高めることができる。また、吸
入口近傍では、テーパーに沿って水が吸い込まれるため
吸込可能な最低水位を下げることができる等の効果を有
する。On the suction side of the pump body, a tapered portion is formed in which the diameter of the opening is narrowed. Corresponding to this taper portion, a taper portion 732 is provided at the lower end portion of the small diameter blade.
May be provided. In this embodiment, since the convex portion is not exposed on the outer periphery of the wall member, the generation of bubbles is small, and the low noise and low vibration can be maintained and the maximum head can be increased. In addition, since water is sucked along the taper in the vicinity of the suction port, the minimum water level that can be sucked can be lowered.
【００３３】以上述べた実施例においては、大径羽根の
下縁部はテーパー状に形成される場合について述べた
が、本発明はこれに限らずその下縁部を平面形状に形成
し、この平面部を円盤状の部材で一体に連結してもよい
のは勿論である。さらに、壁部材は円筒に限らず円筒と
同等の多角形でもよいのである。また、小径羽根の先端
とポンプ本体の吸入口にテーパーを設けることは、先に
説明した実施例にも当然に適用することができる。In the embodiments described above, the case where the lower edge portion of the large-diameter blade is formed in a tapered shape has been described, but the present invention is not limited to this, and the lower edge portion is formed in a planar shape, and Of course, the flat portions may be integrally connected by a disc-shaped member. Furthermore, the wall member is not limited to a cylinder, but may be a polygonal shape equivalent to a cylinder. Further, the provision of the taper at the tip of the small-diameter blade and the suction port of the pump body can naturally be applied to the above-described embodiment.
【００３４】[0034]
【発明の効果】本発明の排水ポンプは以上のように、ポ
ンプ本体内にあって、モータにより駆動される回転羽根
は、複数の大径羽根と、大径羽根の下方に配設される複
数の小径羽根により構成される。そして、大径羽根の下
縁部は円盤により連結され、円盤の内側には中空部が形
成されている。この構成により、吸入口内で回転する小
径羽根から大径羽根に向けて上昇してくる液面は、円盤
によって上下にほぼ分割されるような状態になり、大径
羽根に接する液体は吐出される。この作用によって、大
径羽根に作用される液体の量が減少し、羽根にかかる負
荷も軽減される。また、気泡の発生量も低減し、騒音も
低減される等の効果を有する。As described above, the drainage pump of the present invention has a plurality of large-diameter blades and a plurality of large-diameter blades disposed below the large-diameter blade in the pump body. It is composed of small diameter blades. The lower edges of the large-diameter blades are connected by a disc, and a hollow portion is formed inside the disc. With this configuration, the liquid surface that rises from the small-diameter blade rotating in the suction port toward the large-diameter blade is almost vertically divided by the disk, and the liquid in contact with the large-diameter blade is discharged. . This action reduces the amount of liquid acting on the large-diameter blade, and also reduces the load on the blade. In addition, the amount of bubbles generated is reduced, and noise is reduced.
【００３５】さらに、大径羽根の外周部を壁部材で囲む
構成とすることによって、排水ポンプの停止時に、吐出
口側から吸入口側へ流れる戻り水は、この壁部材に突き
当って緩衝され、スムーズに吸入口へ落下する。したが
って、戻り水がポンプハウジングの上部から噴出するこ
とがなくなり、騒音も低減する等の効果を有する。Further, since the outer peripheral portion of the large-diameter blade is surrounded by the wall member, the return water flowing from the discharge port side to the suction port side hits the wall member and is buffered when the drainage pump is stopped. , Smoothly falls into the suction port. Therefore, the return water does not spout from the upper part of the pump housing, and noise is reduced.
【図１】本発明の排水ポンプの説明図。FIG. 1 is an explanatory diagram of a drainage pump of the present invention.
【図２】本発明の回転羽根の斜視図。FIG. 2 is a perspective view of a rotary blade of the present invention.
【図３】本発明のポンプ本体とカバーの連結構造を示す
説明図。FIG. 3 is an explanatory view showing a connecting structure of a pump body and a cover of the present invention.
【図４】本発明の回転羽根の上面図。FIG. 4 is a top view of the rotary blade of the present invention.
【図５】本発明の回転羽根の正面図。FIG. 5 is a front view of a rotary blade of the present invention.
【図６】本発明の回転羽根の下面図。FIG. 6 is a bottom view of the rotary blade of the present invention.
【図７】本発明の排水ポンプの作用を示す説明図。FIG. 7 is an explanatory view showing the action of the drainage pump of the present invention.
【図８】本発明の回転羽根の他の実施例を示す上面図。FIG. 8 is a top view showing another embodiment of the rotary blade of the present invention.
【図９】本発明の回転羽根の他の実施例を示す正面図。FIG. 9 is a front view showing another embodiment of the rotary blade of the present invention.
【図１０】本発明の回転羽根の他の実施例を示す下面
図。FIG. 10 is a bottom view showing another embodiment of the rotary blade of the present invention.
【図１１】円盤の断面図。FIG. 11 is a sectional view of a disk.
【図１２】回転羽根の直径と揚程の関係を示すグラフ。FIG. 12 is a graph showing the relationship between the diameter of a rotary blade and the lift.
【図１３】円盤の中空部の径と揚程の関係を示すグラ
フ。FIG. 13 is a graph showing the relationship between the diameter of the hollow portion of the disk and the lift.
【図１４】円盤の肉厚と揚程の関係を示すグラフ。FIG. 14 is a graph showing the relationship between the disk thickness and the lift.
【図１５】回転羽根とポンプ本体との間隙と揚程の関係
を示すグラフ。FIG. 15 is a graph showing a relationship between a clearance between a rotary blade and a pump body and a lift.
【図１６】本発明の回転羽根の他の実施例を示す上面
図。FIG. 16 is a top view showing another embodiment of the rotary blade of the present invention.
【図１７】本発明の回転羽根の他の実施例を示す正面
図。FIG. 17 is a front view showing another embodiment of the rotary blade of the present invention.
【図１８】本発明の回転羽根の他の実施例を示す斜視
図。FIG. 18 is a perspective view showing another embodiment of the rotary blade of the present invention.
【図１９】本発明の排水ポンプの作用を示す説明図。FIG. 19 is an explanatory view showing the action of the drainage pump of the present invention.
【図２０】本発明の回転羽根の他の実施例を示す上面
図。FIG. 20 is a top view showing another embodiment of the rotary blade of the present invention.
【図２１】本発明の回転羽根の他の実施例を示す正面
図。FIG. 21 is a front view showing another embodiment of the rotary blade of the present invention.
【図２２】本発明の回転羽根の他の実施例を示す斜視
図。FIG. 22 is a perspective view showing another embodiment of the rotary blade of the present invention.
【図２３】本発明の回転羽根の他の実施例を示す上面
図。FIG. 23 is a top view showing another embodiment of the rotary blade of the present invention.
【図２４】本発明の回転羽根の他の実施例を示す正面
図。FIG. 24 is a front view showing another embodiment of the rotary blade of the present invention.
【図２５】本発明の回転羽根の他の実施例を示す斜視
図。FIG. 25 is a perspective view showing another embodiment of the rotary blade of the present invention.
【図２６】本発明の回転羽根の他の実施例を示す上面
図。FIG. 26 is a top view showing another embodiment of the rotary blade of the present invention.
【図２７】本発明の回転羽根の他の実施例を示す正面
図。FIG. 27 is a front view showing another embodiment of the rotary blade of the present invention.
【図２８】本発明の回転羽根の他の実施例を示す斜視
図。FIG. 28 is a perspective view showing another embodiment of the rotary blade of the present invention.
【図２９】本発明の回転羽根の他の実施例を示す上面
図。FIG. 29 is a top view showing another embodiment of the rotary blade of the present invention.
【図３０】本発明の回転羽根の他の実施例を示す正面
図。FIG. 30 is a front view showing another embodiment of the rotary blade of the present invention.
【図３１】本発明の回転羽根の他の実施例を示す斜視
図。FIG. 31 is a perspective view showing another embodiment of the rotary blade of the present invention.
【図３２】本発明の回転羽根の他の実施例を示す上面
図。FIG. 32 is a top view showing another embodiment of the rotary blade of the present invention.
【図３３】本発明の回転羽根の他の実施例を示す正面
図。FIG. 33 is a front view showing another embodiment of the rotary blade of the present invention.
【図３４】本発明の回転羽根の他の実施例を示す斜視
図。FIG. 34 is a perspective view showing another embodiment of the rotary blade of the present invention.
【図３５】本発明の回転羽根の他の実施例を示す上面
図。FIG. 35 is a top view showing another embodiment of the rotary blade of the present invention.
【図３６】本発明の回転羽根の他の実施例を示す正面
図。FIG. 36 is a front view showing another embodiment of the rotary blade of the present invention.
【図３７】本発明の回転羽根の他の実施例を示す斜視
図。FIG. 37 is a perspective view showing another embodiment of the rotary blade of the present invention.
【図３８】本発明の回転羽根の他の実施例を示す上面
図。FIG. 38 is a top view showing another embodiment of the rotary blade of the present invention.
【図３９】本発明の回転羽根の他の実施例を示す正面
図。FIG. 39 is a front view showing another embodiment of the rotary blade of the present invention.
【図４０】本発明の回転羽根の他の実施例を示す斜視
図。FIG. 40 is a perspective view showing another embodiment of the rotary blade of the present invention.
【図４１】従来の排水ポンプの作用を示す説明図。FIG. 41 is an explanatory view showing the action of the conventional drainage pump.
１，１Ａ 排水ポンプ １０ ポンプ本体 １２ ポンプ室 １５ 吸入口 １７ 吐出口 １９ 突起 ３０ カバー ５０ モータ ５２ モータ駆動軸 ３００ 回転羽根 ３１０ シャフト ３２０ 大径羽根 ３３０ 小径羽根 ３５０ 円盤 ３５５ 中空部 ３６０ 壁部材 ７１７ 羽根部材 ７３２ テーパー部 ７４５ 開口部 1, 1A Drainage pump 10 Pump body 12 Pump chamber 15 Suction port 17 Discharge port 19 Protrusion 30 Cover 50 Motor 52 Motor drive shaft 300 Rotating blade 310 Shaft 320 Large diameter blade 330 Small diameter blade 350 Disc 355 Hollow portion 360 Wall member 717 Blade member 732 Taper part 745 Opening part
Claims (14)
口を設けたポンプ本体と、 上記ポンプ本体内に回転自在に納められる回転体と、 上記回転体を回転させるモータとからなり、 上記回転体は、モータの出力軸に連結されるシャフト部
と、シャフト部から放射方向に設けられる板状の大径羽
根と、大径羽根の下部に出力軸方向に設けられる板状の
小径羽根と、上記大径羽根と小径羽根との間に設けられ
る中空部を有する円盤とを備えることを特徴とする排水
ポンプ。1. A pump body having a suction port at a lower end portion and a discharge port at an upper side surface, a rotating body rotatably housed in the pump body, and a motor for rotating the rotating body. The rotating body includes a shaft portion connected to the output shaft of the motor, a large-diameter plate blade provided radially from the shaft portion, and a small-diameter blade plate provided below the large-diameter blade in the output axis direction. And a disk having a hollow portion provided between the large diameter blade and the small diameter blade.
底面を有するポンプ室と、ポンプ室の小径側に設けられ
る吸入口と、ポンプ室の大径側に設けられる吐出口を有
するポンプ本体と、該ポンプ本体の上端開口部を閉塞す
るカバーと、該カバーの上方に配置される駆動用モータ
と、このモータ駆動軸に取り付けられる前記ポンプ本体
内でポンプ本体に対して間隙を保持して回転される回転
体とを設けた排水ポンプにおいて、 上記回転体は、モータの出力軸に連結されるシャフト部
と、シャフト部から径方向に延びる板状の大径の羽根
と、大径羽根の下方に設けられて吸入口内で回転する小
径羽根とを有し、各大径羽根の下部を連結する中空部を
有する円盤を備えることを特徴とする排水ポンプ。2. A pump body having a pump chamber having a bottom surface formed of a curved surface whose diameter gradually increases, an intake port provided on the small diameter side of the pump chamber, and a discharge port provided on the large diameter side of the pump chamber. A cover for closing the upper end opening of the pump body, a drive motor disposed above the cover, and a gap maintained between the pump body and the pump body mounted on the motor drive shaft. In the drainage pump provided with a rotating body to be rotated, the rotating body includes a shaft portion connected to an output shaft of a motor, a plate-like large-diameter blade extending in a radial direction from the shaft portion, and a large-diameter blade. A drainage pump, comprising: a disk provided below and having a small-diameter blade that rotates in an intake port; and a disk having a hollow portion that connects the lower portions of the large-diameter blades.
面内に配設され、円盤はシャフト部の軸線に直交する平
面内に配設されることを特徴とする請求項１又は２記載
の排水ポンプ。3. The large-diameter blade is arranged in a plane including the axis of the shaft portion, and the disk is arranged in a plane orthogonal to the axis of the shaft portion. Drainage pump.
底面の曲面にならう傾斜面で形成されることを特徴とす
る請求項１又は２記載の排水ポンプ。4. The drainage pump according to claim 1, wherein the disk having the hollow portion is formed as an inclined surface that follows the curved surface of the bottom surface of the pump chamber.
口を設けたポンプ本体と、 上記ポンプ本体内に回転自在に納められる回転体と、 上記回転体を回転させるモータとからなり、 上記回転体は、モータの出力軸に連結されるシャフト部
と、シャフト部から放射方向に設けられる板状の大径羽
根と、大径羽根の下部に出力軸方向に設けられる板状の
小径羽根と、上記大径羽根と小径羽根との間に設けられ
る中空部を有する円盤と、上記大径羽根の外周縁部を連
結する壁部材とを備えることを特徴とする排水ポンプ。5. A pump body having a suction port at a lower end portion and a discharge port at an upper side surface, a rotating body rotatably housed in the pump body, and a motor for rotating the rotating body. The rotating body includes a shaft portion connected to the output shaft of the motor, a large-diameter plate blade provided radially from the shaft portion, and a small-diameter blade plate provided below the large-diameter blade in the output axis direction. A drainage pump, comprising: a disk having a hollow portion provided between the large-diameter blade and the small-diameter blade; and a wall member connecting an outer peripheral edge portion of the large-diameter blade.
を特徴とする請求項５記載の排水ポンプ。6. The drainage pump according to claim 5, wherein the wall member is a cylindrical ring member.
結されることを特徴とする請求項６記載の排水ポンプ。7. The drainage pump according to claim 6, wherein the connecting portion between the ring member and the disc is connected by a curved surface.
口を設けたポンプ本体と、 上記ポンプ本体内に回転自在に納められる回転体と、 上記回転体を回転させるモータとからなり、 上記回転体は、モータの出力軸に連結されるシャフト部
と、シャフト部から放射方向に設けられる板状の大径羽
根と、大径羽根の下部に出力軸方向に設けられる板状の
小径羽根と、上記大径羽根と小径羽根との間に設けられ
る中空部を有する円盤と、上記大径羽根の外周縁部を突
出させた状態で、外周縁の内側を連結する壁部材とを備
えることを特徴とする排水ポンプ。8. A pump body having a suction port at a lower end portion and a discharge port at an upper side surface, a rotating body rotatably housed in the pump body, and a motor for rotating the rotating body. The rotating body includes a shaft portion connected to the output shaft of the motor, a large-diameter plate blade provided radially from the shaft portion, and a small-diameter blade plate provided below the large-diameter blade in the output axis direction. And a disk having a hollow portion provided between the large-diameter blade and the small-diameter blade, and a wall member that connects the inside of the outer-peripheral edge with the outer peripheral edge portion of the large-diameter blade protruding. Drainage pump characterized by.
口を設けたポンプ本体と、 上記ポンプ本体内に回転自在に納められる回転体と、 上記回転体を回転させるモータとからなり、 上記回転体は、モータの出力軸に連結されるシャフト部
と、シャフト部から放射方向に設けられる板状の大径羽
根と、大径羽根の下部に出力軸方向に設けられる板状の
小径羽根と、上記大径羽根と小径羽根との間に設けられ
る中空部を有する円盤と、上記大径羽根の外周縁部を連
結するとともに、その外周部にたて溝が形成された壁部
材とを備えることを特徴とする排水ポンプ。9. A pump body having a suction port at a lower end portion and a discharge port at an upper side surface, a rotating body rotatably housed in the pump body, and a motor for rotating the rotating body. The rotating body includes a shaft portion connected to the output shaft of the motor, a large-diameter plate blade provided radially from the shaft portion, and a small-diameter blade plate provided below the large-diameter blade in the output axis direction. A disk having a hollow portion provided between the large-diameter blade and the small-diameter blade, and a wall member that connects the outer peripheral edge portion of the large-diameter blade and has a vertical groove formed in the outer peripheral portion thereof. A drainage pump characterized by being provided.
出口を設けたポンプ本体と、 上記ポンプ本体内に回転自在に納められる回転体と、 上記回転体を回転させるモータとからなり、 上記回転体は、モータの出力軸に連結されるシャフト部
と、シャフト部から放射方向に設けられる板状の大径羽
根と、大径羽根の下部に出力軸方向に設けられる板状の
小径羽根と、上記大径羽根と小径羽根との間に設けられ
る中空部を有する円盤と、 上記大径羽根の外周縁部を連結する壁部材と、壁部材と
円盤との間に形成される開口部とを備えることを特徴と
する排水ポンプ。10. A pump main body having a suction port at a lower end portion and a discharge port at an upper side surface, a rotary body rotatably housed in the pump main body, and a motor for rotating the rotary body, The rotating body includes a shaft portion connected to the output shaft of the motor, a large-diameter plate blade provided radially from the shaft portion, and a small-diameter blade plate provided below the large-diameter blade in the output axis direction. A disk having a hollow portion provided between the large-diameter blade and the small-diameter blade, a wall member connecting the outer peripheral edge portions of the large-diameter blade, and an opening formed between the wall member and the disk And a drainage pump.
出口を設けたポンプ本体と、 上記ポンプ本体内に回転自在に納められる回転体と、 上記回転体を回転させるモータとからなり、 上記回転体は、モータの出力軸に連結されるシャフト部
と、シャフト部から放射方向に設けられる板状の大径羽
根と、大径羽根の下部に出力軸方向に設けられる板状の
小径羽根と、上記大径羽根と小径羽根との間に設けられ
る中空部を有する円盤と、 上記大径羽根の外周縁部を連結する壁部材と、上記壁部
材の内側の円盤の上面に軸方向に延びる羽根部材とから
なることを特徴とする排水ポンプ。11. A pump main body having a suction port at a lower end portion and a discharge port at an upper side surface, a rotary body rotatably housed in the pump main body, and a motor for rotating the rotary body. The rotating body includes a shaft portion connected to the output shaft of the motor, a large-diameter plate blade provided radially from the shaft portion, and a small-diameter blade plate provided below the large-diameter blade in the output axis direction. A disk having a hollow portion provided between the large-diameter blade and the small-diameter blade, a wall member connecting the outer peripheral edge portions of the large-diameter blade, and an axial direction on the upper surface of the disk inside the wall member. A drainage pump comprising an extending blade member.
部を備えることを特徴とする請求項１１記載の排水ポン
プ。12. The drainage pump according to claim 11, further comprising an opening formed between the wall member and the disk.
る底面を有するポンプ室と、ポンプ室の小径側に設けら
れる吸入口と、ポンプ室の大径側に設けられる吐出口を
有するポンプ本体と、該ポンプ本体の上端開口部を閉塞
するカバーと、該カバーの上方に配置される駆動用モー
タと、このモータ駆動軸に取り付けられる前記ポンプ本
体内でポンプ本体に対して間隙を保持して回転される回
転体とを設けた排水ポンプにおいて、 上記回転体は、モータの出力軸に連結されるシャフト部
と、シャフト部から径方向に延びる板状の大径の羽根
と、大径羽根の下方に設けられて吸入口内で回転する小
径羽根とを有し、各大径羽根の下部を連結する中空部を
有する円盤と、上記大径羽根の外周縁部を連結する壁部
材とを備えるとともに、上記ポンプ本体の吸入口の内径
部にテーパー部を備えることを特徴とする排水ポンプ。13. A pump body having a pump chamber having a bottom surface formed of a curved surface whose diameter gradually increases, an inlet port provided on the small diameter side of the pump chamber, and a discharge port provided on the large diameter side of the pump chamber. A cover for closing the upper end opening of the pump body, a drive motor disposed above the cover, and a gap maintained between the pump body and the pump body mounted on the motor drive shaft. In the drainage pump provided with a rotating body to be rotated, the rotating body includes a shaft portion connected to an output shaft of a motor, a plate-like large-diameter blade extending in a radial direction from the shaft portion, and a large-diameter blade. A disk having a small diameter blade provided below and rotating in the suction port, having a hollow portion connecting the lower portions of the large diameter blades, and a wall member connecting the outer peripheral edge portion of the large diameter blade, , Above pump book Drainage pump, characterized in that it comprises a tapered portion on the inner diameter of the suction port of the.
口のテーパー部にならうテーパー部を備えることを特徴
とする請求項１３記載の排水ポンプ。14. The drainage pump according to claim 13, wherein the tip of the small-diameter vane is provided with a taper portion that follows the taper portion of the pump body suction port.
Priority Applications (9)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP01792295A JP3524611B2 (en) | 1995-02-06 | 1995-02-06 | Drainage pump |
| DE69511217T DE69511217T2 (en) | 1994-11-25 | 1995-05-18 | Drain pump |
| EP95107614A EP0713978B1 (en) | 1994-11-25 | 1995-05-18 | Drainage pump |
| US08/446,074 US5628618A (en) | 1994-11-25 | 1995-05-19 | Drainage pump with interposed disk |
| TW088207202U TW407722U (en) | 1994-11-25 | 1995-05-26 | Drainage pump |
| CN95107436.9A CN1117218C (en) | 1994-11-25 | 1995-06-30 | Drainage pump |
| KR1019950019612A KR100373082B1 (en) | 1994-11-25 | 1995-07-05 | Drain pump |
| US08/786,299 US5788457A (en) | 1994-11-25 | 1997-01-22 | Drainage pump with a wall member connecting the outer edges of the radial blades |
| US08/786,298 US5816775A (en) | 1994-11-25 | 1997-01-22 | Drainage pump with interposed disk |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP01792295A JP3524611B2 (en) | 1995-02-06 | 1995-02-06 | Drainage pump |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH08210289A true JPH08210289A (en) | 1996-08-20 |
| JP3524611B2 JP3524611B2 (en) | 2004-05-10 |
Family
ID=11957268
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP01792295A Expired - Lifetime JP3524611B2 (en) | 1994-11-25 | 1995-02-06 | Drainage pump |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3524611B2 (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006029214A (en) * | 2004-07-16 | 2006-02-02 | Fuji Koki Corp | Drain pump |
| WO2006035724A1 (en) * | 2004-09-30 | 2006-04-06 | Kabushiki Kaisha Saginomiya Seisakusho | Vertical shaft centrifugal pump, rotor for the pump, and air conditioner |
| KR100682328B1 (en) * | 2005-08-25 | 2007-02-15 | (주) 퓨어나노텍 | Impeller assembly for draining pump |
| KR100761173B1 (en) * | 2006-08-03 | 2007-09-21 | 엘지전자 주식회사 | A saturation water drain structure of air conditioner |
| JP2016156364A (en) * | 2015-02-26 | 2016-09-01 | 株式会社鷺宮製作所 | Drain pump |
| JP2016156366A (en) * | 2015-02-26 | 2016-09-01 | 株式会社鷺宮製作所 | Drain pump |
-
1995
- 1995-02-06 JP JP01792295A patent/JP3524611B2/en not_active Expired - Lifetime
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006029214A (en) * | 2004-07-16 | 2006-02-02 | Fuji Koki Corp | Drain pump |
| WO2006035724A1 (en) * | 2004-09-30 | 2006-04-06 | Kabushiki Kaisha Saginomiya Seisakusho | Vertical shaft centrifugal pump, rotor for the pump, and air conditioner |
| CN100451342C (en) * | 2004-09-30 | 2009-01-14 | 株式会社鹭宫制作所 | Vertical shaft centrifugal pump, rotor for the pump, and air conditioner |
| KR100970822B1 (en) * | 2004-09-30 | 2010-07-16 | 가부시키가이샤 사기노미야세이사쿠쇼 | Vertical shaft centrifugal pump, rotor for the pump, and air conditioner |
| KR100682328B1 (en) * | 2005-08-25 | 2007-02-15 | (주) 퓨어나노텍 | Impeller assembly for draining pump |
| KR100761173B1 (en) * | 2006-08-03 | 2007-09-21 | 엘지전자 주식회사 | A saturation water drain structure of air conditioner |
| JP2016156364A (en) * | 2015-02-26 | 2016-09-01 | 株式会社鷺宮製作所 | Drain pump |
| JP2016156366A (en) * | 2015-02-26 | 2016-09-01 | 株式会社鷺宮製作所 | Drain pump |
| CN105927550A (en) * | 2015-02-26 | 2016-09-07 | 株式会社鹭宫制作所 | Draining Pump |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3524611B2 (en) | 2004-05-10 |
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