JP6078307B2 - Drainage pump - Google Patents

Drainage pump Download PDF

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Publication number
JP6078307B2
JP6078307B2 JP2012257607A JP2012257607A JP6078307B2 JP 6078307 B2 JP6078307 B2 JP 6078307B2 JP 2012257607 A JP2012257607 A JP 2012257607A JP 2012257607 A JP2012257607 A JP 2012257607A JP 6078307 B2 JP6078307 B2 JP 6078307B2
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rotor
motor
stator
assembly
resin
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JP2014105599A (en
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克司 佐藤
克司 佐藤
永 佐藤
永 佐藤
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Fujikoki Corp
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Fujikoki Corp
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Priority to JP2012257607A priority Critical patent/JP6078307B2/en
Priority to KR1020130099398A priority patent/KR101840493B1/en
Priority to CN201310473446.1A priority patent/CN103835956B/en
Publication of JP2014105599A publication Critical patent/JP2014105599A/en
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D13/00—Pumping installations or systems
    • F04D13/02—Units comprising pumps and their driving means
    • F04D13/06—Units comprising pumps and their driving means the pump being electrically driven
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D13/00—Pumping installations or systems
    • F04D13/02—Units comprising pumps and their driving means
    • F04D13/06—Units comprising pumps and their driving means the pump being electrically driven
    • F04D13/0606—Canned motor pumps
    • F04D13/0613—Special connection between the rotor compartments
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D13/00—Pumping installations or systems
    • F04D13/02—Units comprising pumps and their driving means
    • F04D13/06—Units comprising pumps and their driving means the pump being electrically driven
    • F04D13/08—Units comprising pumps and their driving means the pump being electrically driven for submerged use
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D13/00—Pumping installations or systems
    • F04D13/12—Combinations of two or more pumps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D15/00—Control, e.g. regulation, of pumps, pumping installations or systems
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D27/00—Control, e.g. regulation, of pumps, pumping installations or pumping systems specially adapted for elastic fluids
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/40—Casings; Connections of working fluid
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/40—Casings; Connections of working fluid
    • F04D29/406—Casings; Connections of working fluid especially adapted for liquid pumps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/40—Casings; Connections of working fluid
    • F04D29/42—Casings; Connections of working fluid for radial or helico-centrifugal pumps
    • F04D29/426—Casings; Connections of working fluid for radial or helico-centrifugal pumps especially adapted for liquid pumps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D3/00—Axial-flow pumps

Description

本発明は、空気調和機のドレンパンに溜った水を排水するための排水ポンプに関する。   The present invention relates to a drainage pump for draining water accumulated in a drain pan of an air conditioner.

下記の特許文献は、この種の排水ポンプの基本的な構成を示す。
排水ポンプは、樹脂製のポンプ本体内に樹脂製の回転羽根が収容される。ポンプ本体の上部には、ポンプ本体の上面の蓋部材を有する樹脂製のカバーが取り付けられ、このカバーの上部にモータが支持される。そして、モータの出力軸によって回転羽根を駆動する。 The following patent document shows the basic configuration of this type of drainage pump.
In the drainage pump, a resin rotary blade is accommodated in a resin pump body. A resin cover having a cover member on the upper surface of the pump body is attached to the upper part of the pump body, and the motor is supported on the upper part of the cover. And a rotary blade is driven with the output shaft of a motor.

特開２００９−２６４３１５号公報JP 2009-264315 A 特開平９−０５３５９１号公報Japanese Patent Laid-Open No. 9-053591

最近の排水ポンプは、駆動用のモータとしてステータを樹脂モールド構造として、絶縁性の向上を図る構造が採用されており、この樹脂モールドモータを支持する合成樹脂製カバーと当該カバーに連結する合成樹脂製のポンプ本体とを組み立てる構造となる。   In recent drainage pumps, a structure is adopted in which the stator is a resin mold structure as a drive motor and the insulation is improved. A synthetic resin cover that supports the resin mold motor and a synthetic resin that is connected to the cover It becomes the structure which assembles the pump body made of metal.

一般的に樹脂製品の寸法精度は、金属製品の寸法精度に比べて劣る場合が多い。
この寸法公差が大きい樹脂製品を組み立てる場合、寸法誤差が積み重なって回転羽根の軸とポンプ本体の軸線との間の同軸性が悪くなり、振動発生の原因となる不都合があった。 In general, the dimensional accuracy of resin products is often inferior to that of metal products.
When assembling a resin product having a large dimensional tolerance, dimensional errors are accumulated, and the coaxiality between the axis of the rotary blade and the axis of the pump main body is deteriorated, resulting in inconvenience that causes vibration.

そこで本発明の目的は、回転羽根の同軸度を向上することの容易な排水ポンプを提供することにある。   SUMMARY OF THE INVENTION An object of the present invention is to provide a drainage pump that can easily improve the coaxiality of rotating blades.

上述目的を達成するために本発明の排水ポンプは、基本的手段として、回転羽根と、該回転羽根を収容するポンプ室を有するポンプハウジングと、該ポンプハウジングの上面の開口部を覆う蓋部として機能するハウジングカバーと、該ハウジングカバーの上部に装備されるモータと、該モータを覆うモータカバーとを含み、前記モータは、樹脂モールドされたステータ組立体と、該ステータ組立体によって電磁気的に回転駆動されるロータ組立体とを備え、前記ステータ組立体は、積層形成されたステータコア部材と、該ステータコア部材を樹脂モールドしてなる樹脂モールド体と、該樹脂モールド体に固定的に配置される中心シャフトとを備えている。
そして、前記ステータ組立体のステータコア部材の外周面は、前記ハウジングカバーの上部内周壁に嵌装されている構成を具備する。
さらに、前記ロータ組立体は、円筒形のマグネットロータと、該ロータを保持するロータ中心体とからなり、前記ロータ中心体には有底の中心軸穴が備わっており、該中心軸穴が前記中心シャフトに回転自在に支持されると共に、前記ロータ中心体は、前記回転羽根の連結用の取付部を下端部に備える構成を具備する。 In order to achieve the above-described object, the drainage pump of the present invention includes, as basic means, a rotary blade, a pump housing having a pump chamber that accommodates the rotary blade, and a lid that covers an opening on the upper surface of the pump housing. A functioning housing cover; a motor mounted on an upper portion of the housing cover; and a motor cover covering the motor, wherein the motor is electromagnetically rotated by the stator assembly and the stator assembly. A rotor assembly to be driven, the stator assembly comprising a laminated stator core member, a resin mold body formed by resin molding the stator core member, and a center fixedly disposed on the resin mold body And a shaft.
Then, the outer peripheral surface of the stator core member of the stator assembly includes a structure that is fitted into an upper inner peripheral wall of the housing cover.
Further, the rotor assembly includes a cylindrical magnet rotor and a rotor center body that holds the rotor, and the rotor center body includes a bottomed center shaft hole, and the center shaft hole is formed by the center shaft hole. While being rotatably supported by a central shaft, the rotor central body has a configuration in which a mounting portion for connecting the rotary blades is provided at a lower end portion.

本発明の排水ポンプは、以上の構成を備えることにより、組立性に優れると共に、同軸性も高く、排水ポンプとしての性能を向上することができる。   Since the drainage pump of the present invention has the above-described configuration, it is excellent in assemblability and high in coaxiality, and can improve the performance as a drainage pump.

排水ポンプの側面図。The side view of a drainage pump. 排水ポンプの上面図。The top view of a drainage pump. 図２のＡ−Ａ断面図。AA sectional drawing of FIG. モータの断面図。Sectional drawing of a motor. ステータユニットの断面図。Sectional drawing of a stator unit. ロータユニットの断面図。Sectional drawing of a rotor unit. 排水ポンプ部品構成と組立工程を示す図。The figure which shows a drain pump component structure and an assembly process. 下カバーの側面図。The side view of a lower cover. 下カバーの上面図。The top view of a lower cover. 下カバーの断面図。Sectional drawing of a lower cover. ステータユニットの側面図。The side view of a stator unit. ステータユニットの下面図。The bottom view of a stator unit.

図１は本発明の排水ポンプの側面図、図２は上面図、図３は図２のＡ−Ａ断面図である。
排水ポンプは樹脂製のポンプハウジング１０を有し、ポンプハウジング１０のポンプ室１２内に回転羽根２００が装備される。ポンプハウジング１０の上部にはＯリング３０を介して樹脂製のハウジングカバー（以後下カバーという）４０が取り付けられる。下カバー４０はポンプハウジング１０に設けられるスナップフィットアーム１４を利用してスナップフィット機能によりポンプハウジング１０に着脱自在に取り付けられる。
下カバー４０はポンプハウジング１０の上面の開口部を覆う蓋部４６を有し、蓋部４６の中央部には回転羽根２００の軸部２１０が貫通する開口部４８が形成される。 1 is a side view of a drainage pump according to the present invention, FIG. 2 is a top view, and FIG. 3 is a cross-sectional view taken along line AA of FIG.
The drainage pump has a resin pump housing 10, and a rotary blade 200 is provided in the pump chamber 12 of the pump housing 10. A resin housing cover (hereinafter referred to as a lower cover) 40 is attached to the upper portion of the pump housing 10 via an O-ring 30. The lower cover 40 is detachably attached to the pump housing 10 by a snap fit function using a snap fit arm 14 provided on the pump housing 10.
The lower cover 40 has a lid portion 46 that covers the opening on the upper surface of the pump housing 10, and an opening 48 through which the shaft portion 210 of the rotary blade 200 passes is formed at the center of the lid portion 46.

回転羽根２００の軸部２１０には後述するロータ組立体１４０の取付部１４４が圧入される。下カバー４０の上部には、モータ１００が搭載され、合成樹脂製のモータカバー（以後上カバーという）５０により覆われる。上カバー５０の上部には相手部材（図示せず）への取付部５２が設けられる。
上カバー５０はスナップフィットアーム５４を有し、下カバー４０に対して樹脂の弾性を利用したスナップフィット機能により取り付けられる。 A mounting portion 144 of a rotor assembly 140 described later is press-fitted into the shaft portion 210 of the rotary blade 200. A motor 100 is mounted on the upper portion of the lower cover 40 and is covered with a synthetic resin motor cover (hereinafter referred to as an upper cover) 50. An upper portion of the upper cover 50 is provided with a mounting portion 52 for a mating member (not shown).
The upper cover 50 has a snap fit arm 54 and is attached to the lower cover 40 by a snap fit function using the elasticity of resin.

モータ１００は図４に示すように、それぞれ別体に製造されるステータ組立体１２０とロータ組立体１４０とにより構成される。   As shown in FIG. 4, the motor 100 includes a stator assembly 120 and a rotor assembly 140 that are manufactured separately.

ステータ組立体１２０は、図５に示すように、樹脂モールド体１２１内に一体に配設されたボビン１２２を有している。ボビン１２２にはコイル１２４が巻かれ、配線１２５から給電を受ける。コイル１２４は金属板を重ねたステータコア部材１２６を励磁する。樹脂モールド体１２１の中心部には円柱形のシャフト１３０が取り付けられる。   As shown in FIG. 5, the stator assembly 120 has a bobbin 122 disposed integrally in a resin mold body 121. A coil 124 is wound around the bobbin 122 and receives power from the wiring 125. The coil 124 excites the stator core member 126 on which the metal plates are stacked. A cylindrical shaft 130 is attached to the center of the resin mold body 121.

ロータ組立体１４０は、図６に示すように、樹脂製のロータ中心体１４１を備える。ロータ中心体１４１は中空の円筒形状をなし、その下端部に回転羽根２００の軸部２１０に圧入される取付部１４４を有する。ロータ中心体１４１の上部外側にはロータ部１４６が固着される。ロータ部１４６の下方にはロータ部１４６への水の浸入を防止するフランジ部１４２が設けられる。ロータ中心体１４１の内径部にはシャフト１３０に対する軸受１５０、１５２が取り付けられる。下方の軸受１５２の底部にはスラスト受け板１６０が挿入される。   As shown in FIG. 6, the rotor assembly 140 includes a resin rotor center body 141. The rotor center body 141 has a hollow cylindrical shape, and has a mounting portion 144 that is press-fitted into the shaft portion 210 of the rotary blade 200 at the lower end thereof. A rotor portion 146 is fixed to the upper outer side of the rotor center body 141. A flange portion 142 that prevents water from entering the rotor portion 146 is provided below the rotor portion 146. Bearings 150 and 152 for the shaft 130 are attached to the inner diameter portion of the rotor center body 141. A thrust receiving plate 160 is inserted into the bottom of the lower bearing 152.

ロータ組立体１４０をステータ組立体１２０に対して組立てる工程を図７を参照して説明する。
先ず、ステータ組立体１２０のシャフト１３０を、ロータ組立体１４０のロータ中心体１４１に配設する軸受１５０と軸受１５２に対して挿入する。シャフト１３０の先端部はスラスト受け板１６０に当接するとともに、ステータコア部材１２６とロータ部１４６は互いの磁力により引き合い、ロータ組立体１４０がシャフト１３０から抜け落ちることはない。 A process of assembling the rotor assembly 140 with respect to the stator assembly 120 will be described with reference to FIG.
First, the shaft 130 of the stator assembly 120 is inserted into the bearing 150 and the bearing 152 disposed in the rotor center body 141 of the rotor assembly 140. The front end portion of the shaft 130 abuts against the thrust receiving plate 160, and the stator core member 126 and the rotor portion 146 are attracted by the mutual magnetic force, so that the rotor assembly 140 does not fall off the shaft 130.

この状態で樹脂モールド１２１の底部１２１ａとフランジ部１４２の間に間隙Ｇ１が形成される。この間隙Ｇ１はロータ組立体１４０が回転時に樹脂モールド１２１と干渉することのないように設定される。またフランジ部１４２の存在によって、水の内部への浸入を防止する。 Gap G 1 is formed between the bottom portion 121a and the flange portion 142 of the resin mold 121 in this state. This gap G 1 is set so as not to rotor assembly 140 from interfering with the resin mold 121 during rotation. Further, the presence of the flange portion 142 prevents water from entering the inside.

モータ１００にあっては、ステータ組立体１２０側のシャフト１３０をロータ中心体１４１の内部に取り込んで樹脂製のロータ組立体１４０で囲む構造を採用している。この構造により、ポンプハウジング１０側から飛散する水がモータ１００内に浸入することが防止され、排水ポンプの機能を向上することができる。   The motor 100 employs a structure in which the shaft 130 on the stator assembly 120 side is taken into the rotor center body 141 and surrounded by the resin rotor assembly 140. With this structure, water scattered from the pump housing 10 side is prevented from entering the motor 100, and the function of the drainage pump can be improved.

次に、図７〜図１２を参照しつつ、排水ポンプの組立の詳細を説明する。図８は下カバー４０の側面図、図９は下カバー４０の上面図、図１０は下カバー４０の断面図、図１１はステータ組立体１２０の側面図、図１２はステータ組立体１２０の下面図である。   Next, details of the assembly of the drainage pump will be described with reference to FIGS. 8 is a side view of the lower cover 40, FIG. 9 is a top view of the lower cover 40, FIG. 10 is a sectional view of the lower cover 40, FIG. 11 is a side view of the stator assembly 120, and FIG. FIG.

図１０に示すように、下カバー４０の最上部の内径部には、ステータ組立体１２０を嵌合させるためのカバー壁厚を薄くしたステータユニット受け部４５が形成され、段付のステータユニット支持部４３が設けられる。ステータ組立体１２０が嵌合するステータユニット受け部４５は排水ポンプを組み立てる際の基準位置となる。この基準位置を第３の基準位置Ｋ３とする。 As shown in FIG. 10, a stator unit receiving portion 45 having a thin cover wall for fitting the stator assembly 120 is formed on the inner diameter portion of the uppermost portion of the lower cover 40, and a stepped stator unit support is provided. A portion 43 is provided. The stator unit receiving portion 45 with which the stator assembly 120 is fitted serves as a reference position when the drainage pump is assembled. The reference position and the third reference position K 3.

図１１、１２に示すように、ステータ組立体１２０のステータコア部材１２６は磁性金属板を打ち抜き加工等により製造されるものであって、その外周面（外径部）の寸法制度は高い。そこで、ステータコア部材１２６の外周面（外径部）を第１の基準位置Ｋ１とすると、第１の基準位置Ｋ１の寸法精度は、樹脂製品の寸法精度に比較して高いものとなる。そして、ステータ組立体１２０の中心位置に挿入され固定する金属製のシャフト１３０の外径位置を第２の基準位置Ｋ２とすると、第２の基準位置Ｋ２の精度も高いものとなる。 As shown in FIGS. 11 and 12, the stator core member 126 of the stator assembly 120 is manufactured by punching a magnetic metal plate or the like, and the dimensional system of the outer peripheral surface (outer diameter portion) is high. Therefore, when the reference position K 1 outer peripheral surface (outer diameter) first stator core member 126, a first dimensional accuracy of the reference position K 1 becomes higher as compared to the dimensional accuracy of the resin product. Then, when the reference position K 2 the outer diameter position of the second metallic shaft 130 which is inserted into the central position of the stator assembly 120 fixed, becomes higher second accuracy reference position K 2.

図７に示す組立工程において、上記第１の基準位置Ｋ１、第２の基準位置Ｋ２、第３の基準位置Ｋ３を基準として排水ポンプを組み立てる。
ポンプハウジング１０のポンプ室１２内に回転羽根２００を配置する。ポンプハウジング１０に対してＯリング３０を介して下カバー４０を、スナップフィット機能により取り付ける。 In the assembly process shown in FIG. 7, the drainage pump is assembled using the first reference position K 1 , the second reference position K 2 , and the third reference position K 3 as a reference.
A rotary blade 200 is disposed in the pump chamber 12 of the pump housing 10. The lower cover 40 is attached to the pump housing 10 via the O-ring 30 by a snap fit function.

ステータ組立体１２０の中央位置にシャフト１３０を固定し第２の基準位置Ｋ２（中央位置）を決める。シャフト１３０をロータ組立体１４０の軸受１５０、１５２に挿入してモータを組み立てる。ステータ組立体１２０のステータコア部材１２６の外周面（外径部）の第１の基準位置Ｋ１を下カバー４０のステータユニット受け部４５の第３の基準位置Ｋ３に合わせて嵌合させて組み付ける。ロータ組立体１４０のロータ中心体１４１の取付部１４４に回転羽根２００の軸部２１０を挿入して連結する。
上カバー５０を下カバー４０の上部にスナップフィット機能により取り付けて排水ポンプを完成する。 The shaft 130 is fixed at the center position of the stator assembly 120 to determine the second reference position K 2 (center position). The shaft 130 is inserted into the bearings 150 and 152 of the rotor assembly 140 to assemble the motor. Assemble the outer peripheral surface thereby fitting the first reference position K 1 of the (outer diameter) in accordance with the third reference position K 3 of the stator unit receiving portion 45 of the lower cover 40 engaged in the stator core member 126 of the stator assembly 120 . The shaft portion 210 of the rotary blade 200 is inserted into and connected to the attachment portion 144 of the rotor center body 141 of the rotor assembly 140.
The upper cover 50 is attached to the upper part of the lower cover 40 by a snap fit function to complete the drainage pump.

本発明の排水ポンプにあっては、ステータ組立体１２０にモールドされる金属製のステータコア部材１２６の外径部を第１の基準位置Ｋ１として樹脂製の下カバー４０のステータユニット受け部４５を第３の基準位置Ｋ３として嵌合させる。そして、ステータ組立体１２０の中央部に挿入されるシャフト１３０の外径部を第２の基準位置Ｋ２としてロータ組立体１４０を一体化し、ロータ組立体１４０を回転羽根２００に連結する構成を採用している。
この構成により、ポンプハウジング１０の軸線と回転羽根２００の軸線の同軸精度が向上し、回転羽根２００の回転時の振動等の発生が防止される。 In the drain pump of the present invention, the stator unit receiving portion 45 of the resin of the lower cover 40 the outer diameter portion as the first reference position K 1 of the metallic stator core member 126 is molded stator assembly 120 fitted as a third reference position K 3. Then, use a construction where integrated rotor assembly 140 to the outer diameter portion as the second reference position K 2 of the shaft 130 to be inserted into the central portion of the stator assembly 120, connecting the rotor assembly 140 to rotate the blade 200 doing.
With this configuration, the coaxial accuracy between the axis of the pump housing 10 and the axis of the rotary blade 200 is improved, and the occurrence of vibration and the like during rotation of the rotary blade 200 is prevented.

１０ ポンプハウジング
１２ ポンプ室
３０ Ｏリング
４０ ハウジングカバー（下カバー）
４２ スナップフィット受け
４３ ステータユニット支持部
４４ スナップフィット受け
４５ ステータユニット受け部
４６ 蓋部
４８ 開口部
５０ モータカバー（上カバー）
５４ スナップフィットアーム
１００ モータ
１２０ ステータ組立体
１２１ 樹脂モールド
１２２ ボビン
１２４ コイル
１２５ 配線
１２６ ステータコア部材
１３０ シャフト
１４０ ロータ組立体
１４１ ロータ中心体
１４２ フランジ部
１４４ 取付部
１４６ ロータ部
１５０、１５２ 軸受
１６０ スラスト受け板
２００ 回転羽根
２１０ 軸部
Ｇ１ 間隙
Ｋ１ 第１の基準位置
Ｋ２ 第２の基準位置
Ｋ３ 第３の基準位置 10 Pump housing 12 Pump chamber 30 O-ring 40 Housing cover (lower cover)
42 Snap-fit receptacle 43 Stator unit support portion 44 Snap-fit receptacle 45 Stator unit receptacle portion 46 Lid portion 48 Opening portion 50 Motor cover (upper cover)
54 Snap Fit Arm 100 Motor 120 Stator Assembly 121 Resin Mold 122 Bobbin 124 Coil 125 Wiring 126 Stator Core Member 130 Shaft 140 Rotor Assembly 141 Rotor Center Body 142 Flange Portion 144 Mounting Portion 146 Rotor Portion 150, 152 Bearing 160 Thrust Receiving Plate 200 Rotating blade 210 Shaft part G 1 Gap K 1 First reference position K 2 Second reference position K 3 Third reference position

Claims (1)

回転羽根と、該回転羽根を収容するポンプ室を有するポンプハウジングと、該ポンプハウジングの上面の開口部を覆う蓋部として機能するハウジングカバーと、該ハウジングカバーの上部に装備されるモータと、該モータを覆うモータカバーとを含み、
前記モータは、樹脂モールドされたステータ組立体と、該ステータ組立体によって電磁気的に回転駆動されるロータ組立体とを備え、
前記ステータ組立体は、積層形成されたステータコア部材と、該ステータコア部材を樹脂モールドしてなる樹脂モールド体と、該樹脂モールド体に固定的に配置される中心シャフトとを備え、
前記ステータ組立体のステータコア部材の外周面は、前記ハウジングカバーの上部内周壁に嵌装され、
前記ロータ組立体は、円筒形のマグネットロータと、該ロータを保持するロータ中心体とからなり、
前記ロータ中心体には有底の中心軸穴が備わっており、該中心軸穴が前記中心シャフトに回転自在に支持されると共に、
前記ロータ中心体は、前記回転羽根の連結用の取付部を下端部に備える
ことを特徴とする排水ポンプ。 A rotary vane, a pump housing having a pump chamber that accommodates the rotary vane, a housing cover that functions as a lid that covers an opening on the upper surface of the pump housing, a motor that is mounted on the upper portion of the housing cover, A motor cover covering the motor,
The motor includes a resin-molded stator assembly and a rotor assembly that is electromagnetically driven to rotate by the stator assembly.
The stator assembly includes a laminated stator core member, a resin mold body formed by resin molding the stator core member, and a center shaft fixedly disposed on the resin mold body,
The outer peripheral surface of the stator core member of the stator assembly is fitted to the upper inner peripheral wall of the housing cover ,
The rotor assembly includes a cylindrical magnet rotor and a rotor central body that holds the rotor,
The rotor central body is provided with a bottomed central shaft hole, the central shaft hole is rotatably supported by the central shaft,
The rotor central body is provided with an attachment portion for connecting the rotary blades at a lower end portion .
JP2012257607A 2012-11-26 2012-11-26 Drainage pump Active JP6078307B2 (en)

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CN102347676A (en) * 2010-07-30 2012-02-08 浙江三花股份有限公司 Direct-current brushless motor and drainage pump
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