JPH09303282A - Drain pump for air conditioner - Google Patents
Drain pump for air conditionerInfo
- Publication number
- JPH09303282A JPH09303282A JP14519796A JP14519796A JPH09303282A JP H09303282 A JPH09303282 A JP H09303282A JP 14519796 A JP14519796 A JP 14519796A JP 14519796 A JP14519796 A JP 14519796A JP H09303282 A JPH09303282 A JP H09303282A
- Authority
- JP
- Japan
- Prior art keywords
- case
- pump
- drain
- air conditioner
- electric motor
- 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.)
- Ceased
Links
- 238000005192 partition Methods 0.000 claims abstract description 22
- 230000002093 peripheral effect Effects 0.000 claims description 11
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 11
- 230000000630 rising effect Effects 0.000 abstract description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 6
- 238000005086 pumping Methods 0.000 description 3
- 230000004308 accommodation Effects 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 241001247986 Calotropis procera Species 0.000 description 1
- 235000014676 Phragmites communis Nutrition 0.000 description 1
- 238000004378 air conditioning Methods 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
Landscapes
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】この発明は、空調装置のドレ
ンパンに溜ったドレンを揚水する空調装置用ドレンポン
プに関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a drain pump for an air conditioner for pumping up drain accumulated in a drain pan of the air conditioner.
【０００２】[0002]
【発明が解決しようとする課題】本出願人は、実開平５
−３８３８５号公報に示すように下部に所定の高さの円
筒部と、該円筒部の上部に直径が上方に向って徐々に増
大する内周面を有した本体部とからポンプ本体を形成す
ると共に軸下部に円筒部の中空部内にてねじれながら垂
下する湾曲羽根と該湾曲羽根と連続して本体部内に位置
する羽根部とから回転羽根を形成し、ポンプ本体の下端
部にドレンが達したとき、電動モータの駆動に伴って回
転する円筒部内の湾曲羽根によりドレンを本体部内に汲
み上げた後、汲み上げられたドレンに対して回転する羽
根部により遠心力を付与して上部の吐出口から排出する
空調装置用ドレンポンプを提案した。The present applicant has found that
As shown in JP-A-38385, a pump main body is formed from a cylindrical portion having a predetermined height at a lower portion and a main body portion having an inner peripheral surface whose diameter gradually increases upward at an upper portion of the cylindrical portion. At the same time, a rotary vane was formed at the lower part of the shaft while being twisted in the hollow part of the cylindrical part while being twisted, and a vane part which was located inside the main body part and was continuous with the curved vane, and the drain reached the lower end part of the pump main body. At this time, after the drain is pumped up into the main body by the curved blades inside the cylinder that rotates with the drive of the electric motor, centrifugal force is applied to the pumped drain by the rotating blades and the drain is discharged from the upper discharge port. A drain pump for an air conditioner was proposed.
【０００３】上記の空調装置用ドレンポンプにあって
は、ポンプ本体の上面開口を覆うカバーに駆動軸を挿通
するための間隙が形成されているため、ドレンポンプの
回転駆動時にはポンプ本体内面に対する水の衝突音が、
又ドレンポンプの駆動停止時には吐出管からポンプ本体
内に逆流する水の戻り音が騒音になる問題を有してい
た。特に、室内の天井に取付けられる空調装置にあって
は、高い静粛性が要求されるが、上記騒音により要求さ
れる静粛性を達成するのが困難であった。In the above-described drain pump for an air conditioner, since a gap for inserting the drive shaft is formed in the cover that covers the upper opening of the pump body, when the drain pump is rotationally driven, water against the inner surface of the pump body The collision sound of
Further, there is a problem that the returning sound of water flowing back into the pump body from the discharge pipe becomes noise when the drain pump is stopped. In particular, an air conditioner mounted on a ceiling in a room is required to have high quietness, but it is difficult to achieve the quietness required by the noise.
【０００４】又、回転羽根を回転させる電動モータにあ
っては、回転軸を回転可能に支持するブラケットの軸受
部を高い精度で形成し、モータ内部に埃や水が侵入する
のを防止する必要があり、電動モータ自体を高コスト化
させる要因になっていた。Further, in the electric motor for rotating the rotary blade, it is necessary to form the bearing portion of the bracket for rotatably supporting the rotary shaft with high accuracy to prevent dust and water from entering the inside of the motor. However, this has been a factor in increasing the cost of the electric motor itself.
【０００５】更に、上記ドレンポンプは取付けブラケッ
トを設け、該取付けブラケットを介してドレンパン或い
は空調装置の機器に固定するように構成されている。こ
のため、ドレンポンプを組み立てた後に、取付けブラケ
ット等の他の部品を更に取付ける必要があり、ドレンポ
ンブの組立て作業工程数が多くなってドレンポンプ自体
を高コスト化させていた。Further, the drain pump is provided with a mounting bracket, and is fixed to the drain pan or the equipment of the air conditioner through the mounting bracket. For this reason, after assembling the drain pump, it is necessary to further attach other parts such as a mounting bracket, which increases the number of drain pump assembly work steps and increases the cost of the drain pump itself.
【０００６】本発明は、上記した従来の欠点を解決する
ために発明されたものであり、その課題とする処は、ポ
ンプ本体内において水の衝突音、回転羽根の回転停止時
に生じる水の逆流音が外部に漏出して騒音化するのを防
止することができる空調装置用ドレンポンプを提供する
ことにある。The present invention has been invented in order to solve the above-mentioned conventional drawbacks, and the problems to be solved are the collision noise of water in the pump body and the reverse flow of water generated when the rotation of the rotary blades is stopped. An object of the present invention is to provide a drain pump for an air conditioner, which can prevent sound from leaking outside and becoming noise.
【０００７】又、本発明の他の課題は、回転羽根を回転
させる電動モータの構造を簡素化して低コスト化できる
空調装置用ドレンポンプを提供することにある。Another object of the present invention is to provide a drain pump for an air conditioner which can simplify the structure of an electric motor for rotating a rotary blade and reduce the cost.
【０００８】更に本発明の他の課題は、他の部材を設け
ることなく、ドレンパンに直接取付けることができ、低
コスト化することができる空調装置用ドレンポンプを提
供することにある。Still another object of the present invention is to provide a drain pump for an air conditioner which can be directly attached to the drain pan without providing any other member and which can reduce the cost.
【０００９】[0009]
【問題点を解決するための手段】このため本発明は、直
径が徐々に増大する内周面を有し、上端が開口した本体
部と本体部の下部中心部にて一定の直径の内周面を有す
る円筒部を所定の高さで形成したポンプ本体及び該ポン
プ本体の上部にて連続すると共に外側を覆いながらポン
プ本体より高い高さで垂下し、上部に本体部の上部と連
通する吐出口部及び上下方向に亘る排水通路を有した外
ケースとからなるポンプケースと、該ポンプケースを覆
い、中心部に透孔を有した底面板及び内部に起立隔壁が
一体形成されたモータ収容ケースと、モータ収容ケース
内に、回転軸が透孔を挿通して取付けられる電動モータ
と、透孔から突出する電動モータの回転軸に挿嵌される
ボス部に一体形成され、本体部の内周面に相対する形状
からなる複数の羽根部及び羽根部の下部に一体形成さ
れ、円筒部の内周に沿って捩じれながら垂下する湾曲羽
根部が一体形成された回転羽根と、電動モータが取付け
られたモータ収容ケースの上面開口を覆い、かつ内部に
起立隔壁とにより電動モータを挟持する垂下隔壁及び上
部に取付け部を有した蓋ケースとから空調装置用ドレン
ポンプを構成している。Therefore, according to the present invention, an inner peripheral surface having a constant diameter is provided at the main body portion having an inner peripheral surface of which the diameter is gradually increased and the upper end is open, and the lower central portion of the main body portion. A pump body in which a cylindrical portion having a surface is formed at a predetermined height and a pump body which is continuous at the upper portion of the pump body and hangs at a height higher than that of the pump body while covering the outside, and communicates with the upper portion of the body portion at the upper portion. A pump case consisting of an outlet case and an outer case having a drainage passage extending in the vertical direction, and a motor housing case in which a bottom plate that covers the pump case and has a through hole in the center and an upright partition wall are integrally formed inside And an electric motor having a rotary shaft inserted through the through hole in the motor housing case, and a boss portion that is fitted into the rotary shaft of the electric motor protruding from the through hole, and is integrally formed with the inner periphery of the main body. Multiple wings with shapes facing each other And a rotary blade integrally formed on the lower part of the blade portion and the blade portion and integrally formed with a curved blade portion that hangs down while twisting along the inner circumference of the cylindrical portion, and covers the upper opening of the motor housing case to which the electric motor is attached, Further, a drain pump for an air conditioner is constituted by a hanging partition wall for sandwiching an electric motor by an upright partition wall and a lid case having an attachment portion at an upper part thereof.
【００１０】そして取付け部を介して空調装置用或いは
ドレンパンの一部にドレンポンプを取付ける。そしてド
レンパン内のドレンが湾曲羽根下端に接する水位に達す
ると、円筒部内のドレンは電動モータの駆動に伴って回
転する湾曲羽根部により本体部内に汲み上げられて回転
する羽根部により遠心力が付与されて吐出口部から吐出
される。このとき、円筒部内にてドレンの汲上げ音及び
本体部内にてドレーンの衝突音が発生するが、ポンプ本
体がドレン内に水没する外ケースにより、又透孔がモー
タ収容ケースにより遮閉されているため、騒音が外部に
漏れ出すのを防止し、低騒音化を図っている。Then, the drain pump is attached to the air conditioner or a part of the drain pan via the mounting portion. When the drain in the drain pan reaches the water level in contact with the lower end of the curved blade, the drain in the cylindrical portion is pumped up into the main body by the curved blade rotating with the drive of the electric motor, and centrifugal force is applied by the rotating blade. Is discharged from the discharge port. At this time, a draining sound is generated in the cylindrical portion and a drain collision sound is generated in the main body portion, but the pump body is blocked by the outer case submerged in the drain and the through hole is blocked by the motor housing case. Therefore, the noise is prevented from leaking outside, and the noise is reduced.
【００１１】又、電動モータの駆動が停止された際には
吐出管内のドレンがポンプ本体内に逆流し、一部が透孔
からモータ収容ケース内に溢れ出すが、溢れ出したドレ
ンはモータ収容ケースと連通する排水通路を介してドレ
ンパン内に戻される。このとき、ドレンの逆流に伴って
騒音が発生するが、この騒音はモータ収容ケース及びド
レン内に水没する排水通路により遮閉されているため、
外部に漏れ出すのを防止し、低騒音化を図っている。Further, when the drive of the electric motor is stopped, the drain in the discharge pipe flows back into the pump main body, and a part overflows from the through hole into the motor accommodating case, but the overflowed drain is accommodated in the motor. It is returned to the inside of the drain pan via the drainage passage communicating with the case. At this time, noise is generated due to the reverse flow of the drain, but this noise is blocked by the motor housing case and the drainage passage submerged in the drain,
It is designed to prevent noise from leaking out and reduce noise.
【００１２】[0012]
【発明の実施の形態】以下、本発明の実施の形態を図に
従って説明する。DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described below with reference to the drawings.
【００１３】図１は空調装置用ドレンポンプの中央縦断
面図である。FIG. 1 is a central longitudinal sectional view of a drain pump for an air conditioner.
【００１４】図２は空調装置用ドレンポンプの一部分解
斜視図である。FIG. 2 is a partially exploded perspective view of a drain pump for an air conditioner.
【００１５】図３は空調装置用ドレンポンプの一部分解
斜視図である。FIG. 3 is a partially exploded perspective view of a drain pump for an air conditioner.
【００１６】図４はフロートが取付けられる支持軸の縦
断面図である。FIG. 4 is a vertical sectional view of a support shaft to which the float is attached.
【００１７】空調装置用ドレンポンプ１のケースはポン
プケース３と、モータ収容ケース５と、蓋ケース７とか
ら構成されている。The case of the air conditioner drain pump 1 comprises a pump case 3, a motor housing case 5, and a lid case 7.
【００１８】ポンプケース３はほぼ四角筒形状の外ケー
ス９内にポンプ本体１１を上部が連結するように一体形
成した構造からなる。該ポンプ本体１１は外ケース９よ
り若干低い高さで、上部の本体部１１ａ及び下部の円筒
部１１ｂが一体形成されている。本体部１１ａは下方か
ら上方に至るに従って直径が徐々に増大するほぼ半球形
状に形成されると共に円筒部１１ｂは本体部１１ａの下
部中心部に一定の直径で垂下し、かつ内部と連通する内
周面を有するように形成されている。そして円筒部１１
ｂの下端部は吸込み口になっている。The pump case 3 has a structure in which a pump body 11 is integrally formed in an outer case 9 having a substantially rectangular tube shape so that the upper part thereof is connected. The pump body 11 has a height slightly lower than that of the outer case 9, and an upper body portion 11a and a lower cylindrical portion 11b are integrally formed. The body portion 11a is formed in a substantially hemispherical shape whose diameter gradually increases from the lower side to the upper side, and the cylindrical portion 11b hangs down from the lower central portion of the body portion 11a with a constant diameter and communicates with the inside. It is formed to have a surface. And the cylindrical portion 11
The lower end of b is a suction port.
【００１９】又、外ケース９の一側面上部には貫通孔１
３ａを有した吐出口部１３が本体部１１ａ内と連通する
ように一体形成されている。該吐出口部１３はその軸線
が本体部１１ａの半径方向に対し、後述する回転羽根２
５の回転方向へ若干傾斜するように形成されている。
又、吐出口部１３の貫通孔１３ａは本体部１１ａ側が小
径で、外側が大径に形成されている。Further, the through hole 1 is formed in the upper portion of one side surface of the outer case 9.
The discharge port portion 13 having 3a is integrally formed so as to communicate with the inside of the main body portion 11a. The axis of the discharge port portion 13 is relative to the radial direction of the main body portion 11a, and the rotary blade 2 described later
5 is formed so as to be slightly inclined in the rotation direction.
Further, the through hole 13a of the discharge port portion 13 is formed to have a small diameter on the main body portion 11a side and a large diameter on the outer side.
【００２０】更に、吐出口部１３と反対側の外ケース９
の他側面にはほぼ半割り筒状の排水通路１５が上下方向
全体にわたって形成されている。該排水通路１５の上部
には外ケース９の上端面から若干突出し、後述するモー
タ収容ケース５の開口５ｅと連通する接続口部１５ａが
設けられている。Further, the outer case 9 on the side opposite to the discharge port portion 13
On the other side surface, a substantially half-divided cylindrical drainage passage 15 is formed over the entire vertical direction. A connection port 15a is provided at an upper portion of the drainage passage 15 so as to slightly project from the upper end surface of the outer case 9 and communicate with an opening 5e of the motor housing case 5 described later.
【００２１】また更に、外ケース９及びポンプ本体１１
の上部を連結するポンプケース３の上面板３ａには突部
３ｂが本体部１１ａにおける上部開口の周囲に形成され
ている。Furthermore, the outer case 9 and the pump main body 11
A protrusion 3b is formed on the upper surface plate 3a of the pump case 3 that connects the upper portions of the above, around the upper opening of the main body 11a.
【００２２】一方、モータ収容ケース５はその下部が外
ケース９とほぼ一致する大きさに形成されると共に吐出
口部１３側の上部には収容部５ａが側方へ膨出するよう
に一体形成されている。モータ収容ケース５の下面を閉
鎖する底面板５ｂの中心部には後述する回転羽根２５の
ボス部２５ａを間隙を設けて挿通させる透孔５ｃが形成
されている。又、底面板５ｂの下面には凹部５ｄが突部
３ｂと係合可能に形成され、該凹部５ｄ内には弾性気密
材１７が挿嵌されている。On the other hand, the motor accommodating case 5 is formed such that the lower part thereof has a size substantially corresponding to the outer case 9 and the accommodating part 5a is integrally formed in the upper part on the discharge port 13 side so as to bulge laterally. Has been done. A through hole 5c is formed in a central portion of a bottom plate 5b that closes the lower surface of the motor housing case 5 to allow a boss portion 25a of a rotary blade 25, which will be described later, to be inserted with a gap. A recess 5d is formed on the lower surface of the bottom plate 5b so as to be able to engage with the projection 3b, and an elastic hermetic material 17 is inserted into the recess 5d.
【００２３】尚、凹部５ｄの中心側に位置する底面板５
ｂはその下面が上方へ膨出する湾曲面に形成されてい
る。The bottom plate 5 located on the center side of the recess 5d.
The lower surface of b is formed into a curved surface that bulges upward.
【００２４】排水通路１５側のモータ収容ケース５下部
側面には開口５ｅが、接続口部１５ａとほぼ一致する大
きさで形成されると共に該開口５ｅの上部に位置するモ
ータ収容ケース５には閉鎖板５ｆが接続口部１５ａの上
端開口を閉鎖するように一体形成されている。An opening 5e is formed in the lower side surface of the motor housing case 5 on the side of the drainage passage 15 so as to have a size substantially corresponding to the connection port portion 15a, and is closed in the motor housing case 5 located above the opening 5e. The plate 5f is integrally formed so as to close the upper end opening of the connection opening 15a.
【００２５】収容部５ａ側の底面板５ｂには切欠部５ｇ
を有した起立隔壁５ｈがモータ収容ケース５内を区画す
るように一体形成されている。又、収容部５ａの下面及
び側面には複数のスリット５ｉが形成されている。更
に、収容部５ａの下面側方には上下方向に軸線を有し、
下端がポンプケース３のほぼ下部に至る軸線長さのフロ
ートスイッチ取付け部としての支持軸５ｊが一体形成さ
れ、該支持軸５ｊには内周面に磁石１９ｂが取付けられ
たフロートスイッチの一部を構成するフロート１９が軸
線方向へ移動可能で、かつ下部のストッパ２１により抜
け止めされて取付けられている。そして上記支持軸５ｊ
の上部中空部には、例えばリードスイッチ、ホール素子
等のフロートスイッチ１９ａが設けられ、該フロートス
イッチ１９ａは、例えば空調装置の駆動停止に伴って後
述する電動モータ２３の駆動が停止された際に後述する
吐出管３５内のドレンがドレンパン内に戻されてその水
位が高くなったとき、支持軸５ｊを上方へ移動するフロ
ート１９の磁石１９ｂによりＯＮ作動して電動モータ２
３を所定の時間駆動させることによりドレンパン２７か
らドレンがオーバーフローするのを防止している。A cutout portion 5g is formed on the bottom plate 5b on the side of the storage portion 5a.
The standing partition wall 5h having the above is integrally formed so as to partition the inside of the motor housing case 5. Further, a plurality of slits 5i are formed on the lower surface and the side surface of the housing portion 5a. Further, on the lower surface side of the accommodation portion 5a, there is an axis line in the vertical direction,
A support shaft 5j is integrally formed as a float switch mounting portion whose lower end extends almost to the lower part of the pump case 3, and a part of the float switch having a magnet 19b mounted on its inner peripheral surface is formed on the support shaft 5j. The constituent float 19 is movable in the axial direction, and is attached so as to be prevented from coming off by a lower stopper 21. And the support shaft 5j
A float switch 19a such as a reed switch or a hall element is provided in the upper hollow part of the float switch 19a. When the drive of the electric motor 23 described later is stopped, for example, when the drive of the air conditioner is stopped, the float switch 19a is stopped. When the drain inside the discharge pipe 35, which will be described later, is returned to the inside of the drain pan and its water level rises, the magnet 19b of the float 19 that moves the support shaft 5j upward is turned on to operate the electric motor 2
By driving 3 for a predetermined time, the drain is prevented from overflowing from the drain pan 27.
【００２６】上記モータ収容ケース５内には電動モータ
２３が収容されている。該電動モータ２３はコイル部２
３ａと、上下方向へ軸線を有した回転軸２３ｂを有した
ロータを回転可能に収容及び支持する鉄心部２３ｃとか
ら構成されている。そして該電動モータ２３はモータ収
容ケース５内に対し、コイル部２３ａを収容部５ａ内に
位置させた状態で、かつ鉄心部２３ｃを起立隔壁５ｈの
切欠部５ｇに係合させた状態で収容される。尚、モータ
収容ケース５内に電動モータ２３が収容された際、電動
モータ２３の回転軸２３ｂは透孔５ｃの中心とほぼ一致
するように位置決めされる。An electric motor 23 is housed in the motor housing case 5. The electric motor 23 has a coil portion 2
3a, and an iron core portion 23c that rotatably accommodates and supports a rotor having a rotating shaft 23b having an axis in the vertical direction. The electric motor 23 is housed in the motor housing case 5 with the coil portion 23a positioned in the housing portion 5a and the iron core portion 23c engaged with the cutout portion 5g of the standing partition wall 5h. It When the electric motor 23 is housed in the motor housing case 5, the rotary shaft 23b of the electric motor 23 is positioned so as to substantially coincide with the center of the through hole 5c.
【００２７】底面板５ｂの透孔５ｃから突出する回転軸
２３ｂの下端部には回転羽根２５が取付けられる。該回
転羽根２５は回転軸２３ｂに挿嵌されるボス２５ａと、
該ボス２５ａの等分割位置にて先端が本体部１１ａの内
周面に間隙を有して相対し、半径方向へ延出する複数枚
の羽根部２５ｂと、該羽根部２５ｂの下部中心にて円筒
部１１ｂの内周面に沿い、かつ所要の方向へねじれなが
ら垂下する湾曲羽根部２５ｃとが一体形成されている。
尚、図中の符号２５ｄはボス２５ａ上部の回転軸２３ｂ
に取付けられる水切り板である。A rotary blade 25 is attached to the lower end of the rotary shaft 23b protruding from the through hole 5c of the bottom plate 5b. The rotary blade 25 includes a boss 25a that is fitted into the rotary shaft 23b,
At the equally divided position of the boss 25a, the tips of the blades 25b extend in the radial direction, and the tips of the blades 25b face each other with a gap on the inner peripheral surface of the body 11a, and the lower center of the blades 25b. A curved blade portion 25c is integrally formed along the inner peripheral surface of the cylindrical portion 11b and hangs while twisting in a required direction.
In addition, reference numeral 25d in the drawing denotes the rotary shaft 23b above the boss 25a.
It is a draining board attached to.
【００２８】蓋ケース７はモータ収容ケース５の上部に
挿嵌可能な形状で、内部には切欠部７ｂを有した垂下隔
壁７ａが起立隔壁５ｈに相対して一体形成されている。
又、蓋ケース７の上面には取付け部７ｃが一体形成さ
れ、組み立てられた空調装置用ドレンポンプ１は空調装
置の一部或いはドレンパン２７に対し、取付け部７ｃの
透孔７ｄを挿通する固定ねじ（図示せず）により固定さ
れる。The lid case 7 has a shape that can be inserted into the upper portion of the motor housing case 5, and a hanging partition wall 7a having a notch portion 7b is integrally formed inside the lid case 7 so as to face the standing partition wall 5h.
Further, a mounting portion 7c is integrally formed on the upper surface of the lid case 7, and the assembled drain pump 1 for an air conditioner has a fixing screw for inserting a through hole 7d of the mounting portion 7c into a part of the air conditioner or the drain pan 27. It is fixed by (not shown).
【００２９】尚、ポンプケース３とモータ収容ケース５
とは排水通路１５側の上面板３ａに形成された透孔３ｃ
を挿通する固定ねじ２９をモータ収容ケース５内に形成
されたボス部（図示せず）にねじ止めして固定される。
又、ポンプケース３とモータ収容ケース５及び蓋ケース
７は吐出口部１３側の上面板３ａに形成された透孔３ｄ
を挿通する固定ねじ３１及びモータ収容ケース５の収容
部５ａ側に形成された透孔（図示せず）を挿通する固定
ねじ（図示せず）を蓋ケース７内に形成されたボス部
（何れも図示せず）に夫々ねじ止めして固定される。The pump case 3 and the motor housing case 5
Is a through hole 3c formed in the upper surface plate 3a on the drainage passage 15 side.
A fixing screw 29 for inserting the screw is fixed to a boss portion (not shown) formed in the motor housing case 5 by screwing.
Further, the pump case 3, the motor housing case 5, and the lid case 7 have a through hole 3d formed in the upper surface plate 3a on the discharge port 13 side.
A fixing screw (not shown) for inserting a fixing screw 31 for inserting a fixing screw 31 and a through hole (not shown) formed on the accommodation portion 5a side of the motor accommodating case 5 into a boss portion (either (Not shown) are also screwed and fixed.
【００３０】次に、空調装置用ドレンポンプ１の組立て
方法を説明する。Next, a method for assembling the air conditioner drain pump 1 will be described.
【００３１】先ず、モータ収容ケース５内に対して電動
モータ２３の鉄心部２３ｃを起立隔壁５ｈの切欠部５ｇ
に係合させて電動モータ２３を取付ける。このとき、電
動モータ２３のコイル部２３ａは収容部５ａ内に収容さ
れると共に回転軸２３ｂの下端部は透孔５ｃ内に挿通さ
れる。First, the iron core portion 23c of the electric motor 23 is inserted into the motor housing case 5 and the cutout portion 5g of the standing partition wall 5h is formed.
And the electric motor 23 is attached. At this time, the coil portion 23a of the electric motor 23 is housed in the housing portion 5a, and the lower end portion of the rotating shaft 23b is inserted into the through hole 5c.
【００３２】そして収容部５ａを挿通する回転軸２３ｂ
に対し、水切り板２５ｄを挿通した状態で回転羽根２５
のボス２５ａを挿嵌して取付ける。このとき、ボス２５
ａの外周面と透孔５ｃの内周面との間には間隙が設けら
れる。Then, the rotary shaft 23b which passes through the accommodating portion 5a
On the other hand, with the draining plate 25d inserted, the rotary blade 25
The boss 25a is inserted and fitted. At this time, boss 25
A gap is provided between the outer peripheral surface of a and the inner peripheral surface of the through hole 5c.
【００３３】上記のように電動モータ２３及び回転羽根
２５が取付けられたモータ取付けケース５に対してポン
プケース３を、凹部５ｄに突部３ｂを係合させると共に
接続口部１５ａに開口５ｅ及び閉鎖板５ｆを夫々一致さ
せながら取付ける。このとき、回転羽根２５の羽根部２
５ｂはポンプ本体１１の本体部１１ａ内に、又湾曲羽根
部２５ｃは円筒部１１ｂ内に回転可能に夫々収容され
る。そして上記状態にて透孔３ｃを挿通する固定ねじ２
９をボス部に夫々ねじ止めしてポンプケース３とモータ
収容ケース５とを固定させる。As described above, the pump case 3 is engaged with the motor mounting case 5 to which the electric motor 23 and the rotary vanes 25 are attached, the projection 3b is engaged with the recess 5d, and the opening 5e and the opening are closed at the connection port 15a. The plates 5f are attached while being aligned with each other. At this time, the blade portion 2 of the rotary blade 25
5b is rotatably housed in the main body portion 11a of the pump main body 11, and the curved blade portion 25c is rotatably housed in the cylindrical portion 11b. Then, in the above state, the fixing screw 2 which is inserted through the through hole 3c
The pump case 3 and the motor housing case 5 are fixed to each other by screwing 9 to the boss portion.
【００３４】次に、ポンプケース３が固定されたモータ
収容ケース５の上部に対して蓋ケース７を、垂下隔壁７
ａの切欠部７ｂに電動モータ２３の鉄心部２３ｃを係合
させて取付ける。このとき、電動モータ２３のコイル部
２３ａは起立隔壁５ｈ及び垂下隔壁７ａにより収容部５
ａ内に隔離状態で収容される。そして透孔３ｄを挿通す
る固定ねじ３１及び透孔を挿通する固定ねじを相対する
ボス部に夫々ねじ止めしてポンプケース３及びモータ収
容ケース５に蓋ケース７を固定させる。Next, the lid case 7 is attached to the upper part of the motor housing case 5 to which the pump case 3 is fixed, and the hanging partition wall 7
The iron core portion 23c of the electric motor 23 is engaged and attached to the notch portion 7b of a. At this time, the coil portion 23a of the electric motor 23 is accommodated in the housing portion 5 by the standing partition wall 5h and the hanging partition wall 7a.
It is accommodated in a in an isolated state. Then, the fixing screw 31 for inserting the through hole 3d and the fixing screw for inserting the through hole are respectively screwed to the opposing boss portions to fix the lid case 7 to the pump case 3 and the motor housing case 5.
【００３５】次に、組立てられた空調装置用ドレンポン
プ１の吐出口部１３に、例えば３００〜６００mm以上の
高さで立上がる吐出管３５を接続した後、ドレンパン２
７に対して取付け部７ｃの透孔７ｄを挿通する取付けね
じ（図示せず、必要に応じて透孔７ｄ内にゴムブッシュ
を取付けてもよい）により直接固定させる。このとき、
円筒部１１ｂの下端とドレンパン２７の底面との間隔
は、例えば約１０mmの所定の間隔に設定される。Next, after connecting the discharge pipe 35 rising to a height of, for example, 300 to 600 mm to the discharge port portion 13 of the assembled air conditioner drain pump 1, the drain pan 2 is connected.
It is directly fixed to 7 by a mounting screw (not shown, a rubber bush may be mounted in the through hole 7d if necessary) which passes through the through hole 7d of the mounting portion 7c. At this time,
The distance between the lower end of the cylindrical portion 11b and the bottom surface of the drain pan 27 is set to a predetermined distance of about 10 mm, for example.
【００３６】次に、空調装置用ドレンポンプ１の作用を
説明する。Next, the operation of the air conditioner drain pump 1 will be described.
【００３７】図５は吐出状態を示す縦断面図である。FIG. 5 is a vertical sectional view showing a discharge state.
【００３８】図６はポンプ停止時におけるドレンの戻り
状態を示す縦断面図である。FIG. 6 is a vertical sectional view showing the drain return state when the pump is stopped.
【００３９】空調装置用ドレンポンプ１の電動モータ２
３は空調装置の電源ＯＮ−ＯＦＦ操作に連動して駆動さ
せたり、空調装置の電源ＯＮ操作後の一定時間毎に間欠
駆動させてもよく、その運転状態に制限されるものでは
ないが、以下の説明においては、空調装置の電源ＯＮ−
ＯＦＦ操作に連動して電動モータ２３を駆動させる運転
態様とする。Electric motor 2 of air conditioner drain pump 1
3 may be driven in conjunction with power ON / OFF operation of the air conditioner, or may be intermittently driven at fixed time intervals after the power ON operation of the air conditioner, and is not limited to the operating state, but In the explanation of, the power of the air conditioner is turned on-
The operation mode is such that the electric motor 23 is driven in association with the OFF operation.
【００４０】空調装置（図示せず）の電源ＯＮ操作に伴
って電動モータ２３が回転駆動されると、回転羽根２５
の羽根部２５ｂ及び湾曲羽根部２５ｃが所定の方向へ回
転される。そして空調装置の除湿機能により発生するド
レンがドレンパン２７内に溜ってその水位が湾曲羽根部
２５ｃに達すると、図５に示すようにドレンを円筒部１
１ｂ内にて回転する湾曲羽根部２５ｃにより本体部１１
ａ内に汲み上げた後に回転する羽根部２５ｂにより遠心
力を付与して吐出口部１３から吐出させる。このとき、
ポンプ本体１１に比べて外ケース９の高さが高く設定さ
れ、その下端部がドレン内に水没しているため、円筒部
１１ｂ内において発生する湾曲羽根部２５ｃによる汲み
上げ音を外ケース９及びドレンにより遮閉して外部に漏
出するのを防止している。When the electric motor 23 is driven to rotate in accordance with the power-on operation of the air conditioner (not shown), the rotary blades 25
The blade portion 25b and the curved blade portion 25c are rotated in a predetermined direction. Then, when the drainage generated by the dehumidifying function of the air conditioner is accumulated in the drain pan 27 and the water level reaches the curved blade portion 25c, the drainage is removed as shown in FIG.
The main body portion 11 is formed by the curved blade portion 25c that rotates in 1b.
A centrifugal force is applied by the vane portion 25b that rotates after being pumped into the inside a to eject from the ejection port portion 13. At this time,
Since the height of the outer case 9 is set to be higher than that of the pump body 11 and the lower end of the outer case 9 is submerged in the drain, the pumping sound generated by the curved blade portion 25c generated in the cylindrical portion 11b is generated in the outer case 9 and the drain. To prevent leakage to the outside.
【００４１】又、羽根部２５ｂにより遠心力が付与され
るドレンは本体部１１ａ内面に対する衝突に伴う衝撃音
を発生させるが、該ポンプケース３自体、外ケース９及
びモータ収容ケース５により遮閉されているため、衝撃
音が透孔５ｃを介して外部に漏れ出すのを防止してい
る。Further, the drain to which the centrifugal force is applied by the blade portion 25b produces an impact sound due to the collision with the inner surface of the main body portion 11a, but is blocked by the pump case 3 itself, the outer case 9 and the motor housing case 5. Therefore, the impact sound is prevented from leaking to the outside through the through hole 5c.
【００４２】更に、電動モータ２３自体、回転軸２３ｂ
の回転に伴って鉄心部２３ｃに駆動音が発生している
が、電動モータ２３自体、モータ収容ケース５内に収容
されて遮閉されているため、駆動音が外部に漏れ出すの
を防止している。これにより空調用ドレンポンプ１の駆
動時における騒音を低減している。Further, the electric motor 23 itself and the rotating shaft 23b
A drive sound is generated in the iron core portion 23c due to the rotation of the electric motor 23. However, since the electric motor 23 itself is housed and shielded in the motor housing case 5, the drive sound is prevented from leaking to the outside. ing. This reduces noise when the air conditioning drain pump 1 is driven.
【００４３】一方、空調装置の電源のＯＦＦ操作に連動
して電動モータ２３の駆動が中断されると、図６に示す
ように吐出管３５内における揚水途中のドレンは重力に
よりポンプ本体１１内へ戻され、その一部は円筒部１１
ｂの下端開口からドレンパン２７内に、又一部は透孔５
ｃを介してポンプケース３から溢れ出すと共に逆流音の
騒音を発生させる。このとき、透孔５ｃから溢れ出した
ドレンは水切り板２５ｄにより、電動モータ２３への付
着を回避するように整流されながら開口５ｅ及び排水通
路１５を介してドレンパン２７内に戻される。又、ドレ
ンの逆流に伴って発生する騒音はドレン内に水没する外
ケース９及び透孔５ｃを覆うモータ収容ケース５により
遮閉されて外部に漏れ出すのが防止される。On the other hand, when the drive of the electric motor 23 is interrupted in conjunction with the operation of turning off the power of the air conditioner, the drain in the discharge pipe 35 during the pumping into the pump body 11 due to gravity as shown in FIG. Returned, part of which is cylindrical part 11
From the lower end opening of b into the drain pan 27, and partly through hole 5
It overflows from the pump case 3 via c and generates backflow noise. At this time, the drain overflowing from the through hole 5c is returned to the drain pan 27 through the opening 5e and the drainage passage 15 while being rectified by the draining plate 25d so as to avoid adhesion to the electric motor 23. Further, the noise generated by the reverse flow of the drain is blocked by the outer case 9 submerged in the drain and the motor housing case 5 covering the through hole 5c, and is prevented from leaking to the outside.
【００４４】更に、電動モータ２３はモータ収容ケース
５により覆われているため、電動モータ２３、特に鉄心
部２３ｃに対する埃等の付着を防止することができ、耐
久性に優れている。Further, since the electric motor 23 is covered by the motor housing case 5, it is possible to prevent dust and the like from adhering to the electric motor 23, particularly the iron core portion 23c, and it is excellent in durability.
【００４５】[0045]
【発明の効果】このため本発明は、ポンプ本体内におい
て水の衝突音、回転羽根の回転停止時に生じる水の逆流
音が外部に漏出して騒音化するのを防止することができ
る。又、本発明は、回転羽根を回転させる電動モータの
構造を簡素化して低コスト化できる。更に、本発明は、
他の部材を設けることなく、ドレンパンに直接取付ける
ことができ、低コスト化することができる。Therefore, according to the present invention, it is possible to prevent the collision noise of water in the pump main body and the backflow noise of water generated when the rotation of the rotary blades is stopped from leaking to the outside and generating noise. Further, according to the present invention, the structure of the electric motor for rotating the rotary blade can be simplified and the cost can be reduced. Further, the present invention provides
It can be directly attached to the drain pan without providing other members, and the cost can be reduced.
【図１】空調装置用ドレンポンプの中央縦断面図であ
る。FIG. 1 is a central vertical cross-sectional view of a drain pump for an air conditioner.
【図２】空調装置用ドレンポンプの一部分解斜視図であ
る。FIG. 2 is a partially exploded perspective view of a drain pump for an air conditioner.
【図３】空調装置用ドレンポンプの一部分解斜視図であ
る。FIG. 3 is a partially exploded perspective view of a drain pump for an air conditioner.
【図４】フロートが取付けられる支持軸の縦断面図であ
る。FIG. 4 is a vertical sectional view of a support shaft to which a float is attached.
【図５】吐出状態を示す縦断面図である。FIG. 5 is a vertical sectional view showing a discharge state.
【図６】ポンプ停止時におけるドレンの戻り状態を示す
縦断面図である。FIG. 6 is a vertical sectional view showing a drain return state when the pump is stopped.
１ 空調装置用ドレンポンプ、３ ポンプケース、５
モータ収容ケース、５ｈ起立隔壁、７ 蓋ケース、７ａ
垂下隔壁、７ｃ 取付け部、９ 外ケース、１１ ポ
ンプ本体、１１ａ 本体部、１１ｂ 円筒部、１３ 吐
出口、１５ 排水通路、２３ 電動モータ、２５ 回転
羽根、２５ａ ボス部、２５ｂ 羽根部、２５ｃ 湾曲
羽根部、２７ ドレンパン1 Drain pumps for air conditioners, 3 pump cases, 5
Motor housing case, 5h standing partition, 7 lid case, 7a
Hanging partition wall, 7c mounting portion, 9 outer case, 11 pump body, 11a body portion, 11b cylindrical portion, 13 discharge port, 15 drainage passage, 23 electric motor, 25 rotating blades, 25a boss portion, 25b blade portion, 25c curved blade Department, 27 drain pans
Claims (5)
が開口した本体部と本体部の下部中心部にて一定の直径
の内周面を有する円筒部を所定の高さで形成したポンプ
本体及び該ポンプ本体の上部にて連続すると共に外側を
覆いながらポンプ本体より高い高さで垂下し、上部に本
体部の上部と連通する吐出口部及び上下方向に亘る排水
通路を有した外ケースを一体形成したポンプケースと、
該ポンプケースを覆い、中心部に透孔を有した底面板及
び内部に起立隔壁が一体形成されたモータ収容ケース
と、モータ収容ケース内に、回転軸が透孔を挿通して取
付けられる電動モータと、透孔から突出する電動モータ
の回転軸に挿嵌されるボス部に一体形成され、本体部の
内周面に相対する形状からなる複数の羽根部及び羽根部
の下部に一体形成され、円筒部の内周に沿って捩じれな
がら垂下する湾曲羽根部が一体形成された回転羽根と、
電動モータが取付けられたモータ収容ケースの上面開口
を覆い、かつ内部に起立隔壁とにより電動モータを挟持
する垂下隔壁及び上部に取付け部を有した蓋ケースとか
らなる空調装置用ドレンポンプ。1. A cylindrical portion having an inner peripheral surface of which the diameter gradually increases and having an inner peripheral surface of a constant diameter at a main body portion having an open upper end and a lower central portion of the main body portion at a predetermined height. The formed pump main body and the upper part of the pump main body hang down at a height higher than that of the pump main body while covering the outside and have a discharge port communicating with the upper part of the main body and a drain passage extending in the vertical direction at the upper part. A pump case with an integrally formed outer case,
A motor housing case that covers the pump case and has a bottom plate having a through hole in the center and an upright partition wall integrally formed therein; And a plurality of vanes and a lower portion of the vanes, which are integrally formed on a boss portion that is fitted into the rotation shaft of the electric motor protruding from the through hole and have a shape facing the inner peripheral surface of the main body portion, A rotating blade integrally formed with a curved blade portion that hangs down while twisting along the inner circumference of the cylindrical portion,
A drain pump for an air conditioner, comprising: a hanging partition wall which covers an upper surface opening of a motor housing case to which an electric motor is mounted, and which holds an electric motor by a standing partition wall, and a lid case which has a mounting portion on an upper portion.
立隔壁及び蓋ケースの垂下隔壁のいずれか一方には電動
モータの一部に係合して位置決めする切欠部を設けた空
調装置用ドレンポンプ。2. A drain pump for an air conditioner according to claim 1, wherein one of the standing partition wall of the motor housing case and the hanging partition wall of the lid case is provided with a cutout portion for engaging and positioning a part of the electric motor. .
面の上下方向に亘る長さの筒状部及び該筒状部の上部に
てモータ収容ケースの下端部に設けられた開口と連通す
る接続部を有した空調装置用ドレンポンプ。3. The drainage passage according to claim 1, wherein the drainage passage communicates with a cylindrical portion having a length extending in a vertical direction on a side surface of the outer case, and an opening provided at a lower end portion of the motor housing case at an upper portion of the cylindrical portion. A drain pump for an air conditioner having a connection part.
とを連結するポンプケースにおける開口周囲に突部を形
成すると共に該突部に相対するモータ収容ケースの底面
板下面に凹部を設けて位置決め可能にした空調装置用ド
レンポンプ。4. The positioning according to claim 1, wherein a protrusion is formed around an opening in the pump case that connects the pump body and the outer case, and a recess is provided in the bottom surface of the bottom face plate of the motor housing case facing the protrusion. Drain pump for air conditioner made possible.
ス、モータ収容ケース及び蓋ケースの何れかにフロート
スイッチ取付け部を一体形成した空調装置用ドレンポン
プ。5. The drain pump for an air conditioner according to claim 1, wherein the float switch mounting portion is integrally formed on at least one of the pump case, the motor housing case, and the lid case.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14519796A JPH09303282A (en) | 1996-05-14 | 1996-05-14 | Drain pump for air conditioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14519796A JPH09303282A (en) | 1996-05-14 | 1996-05-14 | Drain pump for air conditioner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH09303282A true JPH09303282A (en) | 1997-11-25 |
Family
ID=15379668
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP14519796A Ceased JPH09303282A (en) | 1996-05-14 | 1996-05-14 | Drain pump for air conditioner |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH09303282A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100361189B1 (en) * | 2000-12-13 | 2002-11-21 | 삼성전자 주식회사 | Air conditioner having a drainage pump |
| JP2005304987A (en) * | 2004-04-26 | 2005-11-04 | Matsushita Electric Ind Co Ltd | Clothing drier |
| JP2013177864A (en) * | 2012-02-29 | 2013-09-09 | Nidec Sankyo Corp | Drain pump |
| KR20150035363A (en) * | 2013-09-27 | 2015-04-06 | 가부시기가이샤 후지고오키 | Drain pump |
-
1996
- 1996-05-14 JP JP14519796A patent/JPH09303282A/en not_active Ceased
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100361189B1 (en) * | 2000-12-13 | 2002-11-21 | 삼성전자 주식회사 | Air conditioner having a drainage pump |
| JP2005304987A (en) * | 2004-04-26 | 2005-11-04 | Matsushita Electric Ind Co Ltd | Clothing drier |
| JP2013177864A (en) * | 2012-02-29 | 2013-09-09 | Nidec Sankyo Corp | Drain pump |
| KR20150035363A (en) * | 2013-09-27 | 2015-04-06 | 가부시기가이샤 후지고오키 | Drain pump |
| JP2015068205A (en) * | 2013-09-27 | 2015-04-13 | 株式会社不二工機 | Drainage pump |
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