JPH06200895A - Canned motor pump - Google Patents
Canned motor pumpInfo
- Publication number
- JPH06200895A JPH06200895A JP4353712A JP35371292A JPH06200895A JP H06200895 A JPH06200895 A JP H06200895A JP 4353712 A JP4353712 A JP 4353712A JP 35371292 A JP35371292 A JP 35371292A JP H06200895 A JPH06200895 A JP H06200895A
- Authority
- JP
- Japan
- Prior art keywords
- peripheral surface
- partition wall
- stator
- cup
- outer peripheral
- 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
- 238000005192 partition Methods 0.000 claims abstract description 61
- 230000002093 peripheral effect Effects 0.000 claims abstract description 51
- 239000011347 resin Substances 0.000 claims abstract description 8
- 229920005989 resin Polymers 0.000 claims abstract description 8
- 239000000853 adhesive Substances 0.000 claims abstract description 7
- 230000001070 adhesive effect Effects 0.000 claims abstract description 7
- 230000000881 depressing effect Effects 0.000 abstract 1
- 238000000034 method Methods 0.000 description 11
- 238000000465 moulding Methods 0.000 description 5
- 239000012530 fluid Substances 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 229910000831 Steel Inorganic materials 0.000 description 2
- 238000013016 damping Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 238000010276 construction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
Classifications
-
- 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
- F04D13/0626—Details of the can
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
- H02K5/12—Casings or enclosures characterised by the shape, form or construction thereof specially adapted for operating in liquid or gas
- H02K5/128—Casings or enclosures characterised by the shape, form or construction thereof specially adapted for operating in liquid or gas using air-gap sleeves or air-gap discs
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明はキャンドモータポンプ、
特に温水循環ポンプ等に適するキャンドモータポンプに
関するものである。BACKGROUND OF THE INVENTION The present invention relates to a canned motor pump,
In particular, the present invention relates to a canned motor pump suitable for a hot water circulation pump and the like.
【０００２】[0002]
【従来の技術】図４により従来技術の内容・構成を説明
する。図４は従来より実施されているキャンドモータポ
ンプの構造例を示す断面図で本発明の出願人が特願平３
−１０８１４０号で出願したものである。該例では、モ
ータケーシング２とカップ状隔壁５との空間が固定子室
３で、固定子室３に駆動モータの固定子１が配置され、
前記隔壁５の反対側の面とポンプケーシング６との空間
が回転子室４及びこれと連接するポンプ室８で、ここに
回転子と一体を成すインペラ９が配置されている。2. Description of the Related Art The contents and structure of the prior art will be described with reference to FIG. FIG. 4 is a cross-sectional view showing an example of the structure of a conventional canned motor pump, which was filed by the applicant of the present invention in Japanese Patent Application No.
It was filed under No. -108140. In this example, the space between the motor casing 2 and the cup-shaped partition wall 5 is the stator chamber 3, and the stator 1 of the drive motor is arranged in the stator chamber 3.
The space between the surface on the opposite side of the partition wall 5 and the pump casing 6 is a rotor chamber 4 and a pump chamber 8 connected to the rotor chamber 4, and an impeller 9 integral with the rotor is arranged therein.
【０００３】そして流体の通路となるポンプ室８は、流
体の出入り口１８を除いて気密構造とする為、前記隔壁
５とポンプケーシング６との当接面には例示Ｏリング７
のようにシール部材が併用されている。Since the pump chamber 8 serving as a fluid passage has an airtight structure except for the fluid inlet / outlet 18, the contact surface between the partition wall 5 and the pump casing 6 has an exemplary O-ring 7.
As described above, the seal member is also used.
【０００４】又、インペラ９から伸長するボス部９−１
の内周面の両端に軸受１３が装着され、該軸受１３を介
して回転子永久磁石１０と一体を成す前記インペラ９を
回転自在に支承する軸１４は、其の両端が前記隔壁５の
底面５−１の中央に形成された軸受保持部５−２と、其
の反対側では前記ポンプケーシング６の中心部で複数の
足６−１と一体の軸受保持部６−２で固着保持される。Also, a boss portion 9-1 extending from the impeller 9
Bearings 13 are attached to both ends of the inner peripheral surface of the shaft 14, and the shaft 14 rotatably supporting the impeller 9 integral with the rotor permanent magnet 10 through the bearings 13 has the both ends at the bottom surface of the partition wall 5. A bearing holding portion 5-2 formed in the center of 5-1 and a bearing holding portion 6-2 integrally formed with a plurality of legs 6-1 at the center portion of the pump casing 6 on the opposite side thereof are fixedly held. .
【０００５】該例に示すキヤンドポンプモータは、通電
部分が含まれる固定子を収納する固定子室３と温水等の
流体の通路であるポンプ室８とを隔離する為の前記隔壁
５を樹脂成型で形成する構成では、通常電磁鋼板より成
る前記固定子内周面の精度確保が容易であるのに対し、
該樹脂で形成される隔壁円筒部外周面は成型寸法の面で
バラツキが避けられないことと、前記固定子と隔壁が夫
々材質が異なり温度変化による熱膨張に差が生ずる事を
考慮して、両者の嵌合寸法を緩く設定する必要が有り、
この為任意の部材同士の組合せでは両者の間に隙間の発
生が避けられなかった。In the cand pump motor shown in the example, the partition wall 5 for separating the stator chamber 3 for accommodating the stator including the energized portion from the pump chamber 8 which is a passage for fluid such as hot water is made of resin. In the structure formed by molding, while it is easy to ensure the accuracy of the inner peripheral surface of the stator, which is usually made of electromagnetic steel sheet,
Considering that the outer peripheral surface of the partition wall cylindrical portion formed of the resin is inevitable in terms of molding size, and that the stator and the partition wall are made of different materials, and a difference in thermal expansion due to temperature change occurs, It is necessary to loosely set the fitting dimensions of both.
For this reason, it is inevitable that a gap will be generated between the arbitrary members by combining them.
【０００６】[0006]
【発明が解決しようとする課題】即ち上述の如き従来の
構成においては、該ポンプの実装運転での作動に際して
隔壁円筒部の振動を派生し運転時の騒音につながるとい
う問題が発生する。That is, in the conventional structure as described above, there arises a problem that vibration of the partition wall cylindrical portion is generated during operation of the pump in mounting operation, resulting in noise during operation.
【０００７】[0007]
【課題を解決するための手段】本発明に成るキャンドモ
ータポンプは、固定子室とポンプ室とを隔離するカップ
状隔壁が樹脂で形成されると共に該カップ状円筒部外周
面に複数の小突起が形成され、該小突起と固定子の内周
面との圧接嵌合もしくは該圧接嵌合と該圧接部周辺の隙
間に接着剤を塗布併用することで両者が固着保持される
如く構成されている。In a canned motor pump according to the present invention, a cup-shaped partition wall for separating the stator chamber and the pump chamber is made of resin, and a plurality of small projections are formed on the outer peripheral surface of the cup-shaped cylindrical portion. Is formed, and the small protrusion and the inner peripheral surface of the stator are press-fitted or adhesive is applied to the gap around the press-fitted portion and the press-contacting portion together so that both are fixedly held. There is.
【０００８】[0008]
【作 用】上述の如き構成においては、樹脂成型による
隔壁の円筒部精度のバラツキの存在にも拘らず、部分的
圧接嵌合の手段で固定子内周面との嵌合固着保持を確実
にして、運転時の隔壁の振動発生を防ぎ、騒音を抑制で
きる作用効果がある。[Operation] In the above-mentioned configuration, despite the presence of the variation in the accuracy of the cylindrical portion of the partition wall formed by resin molding, the partial pressure contact fitting means ensures the fitting and holding of the inner peripheral surface of the stator. As a result, vibrations of the partition wall during operation can be prevented, and noise can be suppressed.
【０００９】[0009]
【実施例】以下図面によって本発明になるキャンドモー
タポンプの構成を説明する。図１は本発明になるキャン
ドポンプモータの第１の実施例の構造を示す断面図で、
図２は図１のＡ−Ａ線に沿った断面図であり、図３は本
発明に成るキャンドポンプモータに使用する隔壁単体２
５の一部断面図である。本発明に成るキャンドポンプモ
ータの第１の実施例は、固定子室と回転子室とを隔離す
る隔壁の構造を、図３に示すように其の外周面に軸方向
に伸びる複数個の突起２５−１を設け、該突起は隔壁２
５の外周面に配置される固定子１のポールピース１−１
と対向する位置に設けるようにする。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The construction of a canned motor pump according to the present invention will be described below with reference to the drawings. FIG. 1 is a sectional view showing the structure of a first embodiment of a canned pump motor according to the present invention.
2 is a sectional view taken along the line AA of FIG. 1, and FIG. 3 is a partition wall unit 2 used in the canned pump motor according to the present invention.
5 is a partial cross-sectional view of FIG. The first embodiment of the canned pump motor according to the present invention has a structure of a partition wall that separates a stator chamber and a rotor chamber from each other, as shown in FIG. 25-1 is provided, and the protrusion is a partition wall 2.
5, the pole piece 1-1 of the stator 1 arranged on the outer peripheral surface of the stator 5.
It should be provided at a position facing.
【０００９】図１に示した本発明に成るキャンドモータ
ポンプの第１の実施例の構成は、図に示した従来技術の
キャンドモータポンプとカップ状隔壁の構造を除く他の
部分は同じであるので同じ符号を付けて其の説明を省略
する。図１においてカップ状隔壁２５の円筒部は其の外
周面に複数の軸方向に伸びる突起２５−１を設け、該突
起を固定子１のポールピース１−１の内周面に当接せし
めて圧入されている。図２は図１のＡ−Ａ線に沿った断
面図で、隔壁２５の外周面に複数の突起２５−１（図示
の例では１個のポールピース１−１に対向する突起の数
が３個）が設けられている。図３は本発明に成るカップ
状隔壁２５の単体の詳細図で一部断面を示してある。
隔壁２５の円筒部外周面には複数の軸方向に伸びる小突
起２５−１が、対向する固定子のポールピース１−１と
対応する位置に３個づつ適宜の間隔で設けられており、
前記小突起２５−１の外径は固定子１の内径より僅かに
大きく形成されている。The structure of the first embodiment of the canned motor pump according to the present invention shown in FIG. 1 is the same as the canned motor pump of the prior art shown in the drawing except the structure of the cup-shaped partition wall. Therefore, the same reference numerals are given and the description thereof is omitted. In FIG. 1, the cylindrical portion of the cup-shaped partition wall 25 is provided with a plurality of axially extending projections 25-1 on its outer peripheral surface, and the projections are brought into contact with the inner peripheral surface of the pole piece 1-1 of the stator 1. It is press-fitted. FIG. 2 is a cross-sectional view taken along the line AA of FIG. 1, showing a plurality of protrusions 25-1 on the outer peripheral surface of the partition wall 25 (in the illustrated example, the number of protrusions facing one pole piece 1-1 is 3). Individual pieces) are provided. FIG. 3 is a detailed view of a single unit of the cup-shaped partition wall 25 according to the present invention, a partial cross section of which is shown.
A plurality of small projections 25-1 extending in the axial direction are provided on the outer peripheral surface of the cylindrical portion of the partition wall 25 at positions corresponding to the pole pieces 1-1 of the facing stator, and three small projections are provided at appropriate intervals.
The outer diameter of the small projection 25-1 is slightly larger than the inner diameter of the stator 1.
【００１０】前記固定子の内周部に、其のポールピース
１−１と対向する位置にカップ状隔壁２５の円筒部を該
円筒部の外周面に設けた小突起２５−１を対向させて圧
入すると、隔壁の円筒部の弾性により隔壁の外周面に設
けられた小突起２５−１の外周面は常に固定子の内周面
に圧接されるようになり、この間の隙間は無くなる。そ
して突起と突起の間で隔壁の円筒部外周面と固定子のポ
ールピースの内周面との間に存在する隙間に接着剤２６
が塗布されており隔壁２５と固定子１とを固着して、振
動の減衰を促進し、騒音の発生を抑制する構成としてあ
る。The cylindrical portion of the cup-shaped partition wall 25 is arranged at a position facing the pole piece 1-1 on the inner peripheral portion of the stator so as to face the small projection 25-1 provided on the outer peripheral surface of the cylindrical portion. When press-fitted, due to the elasticity of the cylindrical portion of the partition wall, the outer peripheral surface of the small projection 25-1 provided on the outer peripheral surface of the partition wall is always in pressure contact with the inner peripheral surface of the stator, and the gap therebetween disappears. Then, the adhesive 26 is provided in a gap existing between the outer peripheral surface of the cylindrical portion of the partition wall and the inner peripheral surface of the pole piece of the stator between the protrusions.
Is applied to fix the partition wall 25 and the stator 1 to each other, thereby facilitating vibration damping and suppressing noise generation.
【００１１】図１，図２及び図３に示した第１の実施例
において、隔壁２５の円筒部外周面設けた複数の軸方向
に伸びる小突起２５−１が、軸方向に断続した連なる短
い小突起で形成されている構成としても良い。In the first embodiment shown in FIGS. 1, 2 and 3, a plurality of axially extending small projections 25-1 provided on the outer peripheral surface of the cylindrical portion of the partition wall 25 are continuous in a short axial direction. The structure may be formed by small protrusions.
【００１２】図４は本発明になるキャンドモータポンプ
の第２の実施例の構造を示す断面図で、図５は図４のＡ
−Ａ線に沿った断面図、図６は隔壁単体の一部断面図で
ある。 第２の実施例においては、カップ状隔壁の円筒
部外周面に複数の小突起が、該円筒部の円周方向に長く
伸びるように配置されている。図６に示すようにカップ
状隔壁３５の円筒部外周面に複数（図示の例では３個）
の円周方向に伸びる小突起３５−１が適宜の間隔をもっ
て設けられ、小突起３５−１の外径は前記固定子の内径
より僅かに大きく設けられている。固定子の内周面にカ
ップ状隔壁３５の円筒部を圧入すると、隔壁の円筒部の
弾性により円筒部外周面に設けられた小突起３５−１は
常に固定子の内周面に圧接され其の間に隙間は生じな
い。そして小突起と小突起との間の隔壁の円筒部外周面
と固定子の内周面との間に生ずる隙間に接着剤を塗布し
て隔壁と固定子とを固着し、振動の減衰を促進し騒音の
発生を抑制する構成としている。FIG. 4 is a sectional view showing the structure of the second embodiment of the canned motor pump according to the present invention, and FIG.
FIG. 6 is a partial cross-sectional view of the partition wall alone, taken along line -A. In the second embodiment, a plurality of small projections are arranged on the outer peripheral surface of the cylindrical portion of the cup-shaped partition wall so as to extend in the circumferential direction of the cylindrical portion. As shown in FIG. 6, a plurality (three in the illustrated example) on the outer peripheral surface of the cylindrical portion of the cup-shaped partition wall 35.
The small protrusions 35-1 extending in the circumferential direction are provided at appropriate intervals, and the outer diameter of the small protrusions 35-1 is slightly larger than the inner diameter of the stator. When the cylindrical portion of the cup-shaped partition wall 35 is press-fitted onto the inner peripheral surface of the stator, the small projections 35-1 provided on the outer peripheral surface of the cylindrical portion are constantly pressed against the inner peripheral surface of the stator due to the elasticity of the cylindrical portion of the partition wall. There is no gap between them. Then, an adhesive is applied to a gap formed between the outer peripheral surface of the cylindrical portion of the partition wall between the small projections and the inner peripheral surface of the stator to fix the partition wall and the stator, thereby promoting vibration damping. However, it is configured to suppress the generation of noise.
【００１３】図４，図５及び図６に示す第２の実施例に
おいて、隔壁３５の円筒部外周面に設けた円周方法に伸
びる小突起３５−１を、円周方向に断続して連なる短い
小突起により構成することも出来る。In the second embodiment shown in FIGS. 4, 5 and 6, small projections 35-1 extending in the circumferential direction provided on the outer peripheral surface of the cylindrical portion of the partition wall 35 are connected in a continuous manner in the circumferential direction. It can also be composed of short small projections.
【００１４】[0014]
【発明の効果】本発明に成るキャンドモータポンプは上
記のような構成であるので、隔壁の円筒部の外周面に設
けた小突起が固定子の内周面に当接するように圧入さ
れ、更に接着剤により固着されているので振動を減衰さ
せることが出来るので騒音の発生を抑制できる効果があ
る。Since the canned motor pump according to the present invention is constructed as described above, the small projections provided on the outer peripheral surface of the cylindrical portion of the partition wall are press-fitted so as to contact the inner peripheral surface of the stator. Since it is fixed by an adhesive, it is possible to damp vibrations, which has an effect of suppressing noise generation.
【図１】本発明に成るキャンドモータポンプの第１の例
を示す断面図である。FIG. 1 is a sectional view showing a first example of a canned motor pump according to the present invention.
【図２】 図１に示す例のＡ−Ａ’線に沿った
断面図である。FIG. 2 is a cross-sectional view taken along the line AA ′ of the example shown in FIG.
【図３】本発明に成るキャンドモータポンプの第１の例
の隔壁を示す一部断面図である。FIG. 3 is a partial cross-sectional view showing a partition wall of a first example of a canned motor pump according to the present invention.
【図４】本発明に成るキャンドモータポンプの第２例を
示す断面図である。FIG. 4 is a sectional view showing a second example of a canned motor pump according to the present invention.
【図５】図４に示す例のＡ−Ａ’線に沿った断面図であ
る。5 is a cross-sectional view taken along the line AA ′ of the example shown in FIG.
【図６】本発明に成るキャンドモータポンプの第２の例
の隔壁を示す一部断面図である。FIG. 6 is a partial cross-sectional view showing a partition wall of a second example of a canned motor pump according to the present invention.
【図７】従来技術に成るキャンドモータポンプの例を示
す断面図である。FIG. 7 is a cross-sectional view showing an example of a conventional canned motor pump.
１ ：固定子 １−１：固定子のポールピース ２ ：モータケーシング ３ ：固定子室 ４ ：回転子室 ５ ：隔壁 ５ー１：底面 ５ー２：一方の軸保持部 ５ー３：円筒部 ６ ：ポンプケーシング ６ー１：複数の足 ６ー２：もう一方の軸保持部 ７ ：Ｏリング ８ ：ポンプ室 ９ ：インペラ ９ー１：ボス部 １０ ：永久磁石 １１ ：回転子ヨーク １２ ：回転子カバー １３ ：軸受 １４ ：軸 １８ ：温水の出入り口 ２５ ：第１の改良された隔壁 ２５−１：第１の改良された隔壁の外周面に設けた突起 ２６：接着剤 ３５ ：第２の改良された隔壁 ３５−１：第２の改良された隔壁の外周面に設けた突起 1: Stator 1-1: Stator pole piece 2: Motor casing 3: Stator chamber 4: Rotor chamber 5: Partition wall 5-1: Bottom surface 5-2: One shaft holding portion 5-3: Cylindrical portion 6: Pump casing 6-1: Multiple legs 6-2: The other shaft holding part 7: O ring 8: Pump chamber 9: Impeller 9-1: Boss part 10: Permanent magnet 11: Rotor yoke 12: Rotation Child cover 13: Bearing 14: Shaft 18: Hot water inlet / outlet 25: First improved partition wall 25-1: Protrusions provided on the outer peripheral surface of the first improved partition wall 26: Adhesive 35: Second improvement Partition 35-1: Protrusions provided on the outer peripheral surface of the second improved partition
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【手続補正書】[Procedure amendment]
【提出日】平成６年２月１８日[Submission date] February 18, 1994
【手続補正１】[Procedure Amendment 1]
【補正対象書類名】明細書[Document name to be amended] Statement
【補正対象項目名】請求項１[Name of item to be corrected] Claim 1
【補正方法】変更[Correction method] Change
【補正内容】[Correction content]
【手続補正２】[Procedure Amendment 2]
【補正対象書類名】明細書[Document name to be amended] Statement
【補正対象項目名】請求項６[Name of item to be corrected] Claim 6
【補正方法】変更[Correction method] Change
【補正内容】[Correction content]
【手続補正３】[Procedure 3]
【補正対象書類名】明細書[Document name to be amended] Statement
【補正対象項目名】０００２[Name of item to be corrected] 0002
【補正方法】変更[Correction method] Change
【補正内容】[Correction content]
【０００２】[0002]
【従来の技術】図７により従来技術の内容・構成を説明
する。図７は従来より実施されているキャンドモータポ
ンプの構造例を示す断面図で本発明の出願人が特願平３
−１０８１４０号で出願したものである。該例では、モ
ータケーシング２とカップ状隔壁５との空間が固定子室
３で、固定子室３に駆動モータの固定子１が配置され、
前記隔壁５の反対側の面とポンプケーシング６との空間
が回転子室４及びこれと連接するポンプ室８で、ここに
回転子と一体を成すインぺラ９が配置されている。2. Description of the Related Art The contents and structure of the prior art will be described with reference to FIG. FIG. 7 is a cross-sectional view showing an example of the structure of a conventional canned motor pump, which was filed by the applicant of the present invention in Japanese Patent Application No.
It was filed under No. -108140. In this example, the space between the motor casing 2 and the cup-shaped partition wall 5 is the stator chamber 3, and the stator 1 of the drive motor is arranged in the stator chamber 3.
A space between the surface on the opposite side of the partition wall 5 and the pump casing 6 is a rotor chamber 4 and a pump chamber 8 connected to the rotor chamber 4, and an impeller 9 integral with the rotor is arranged therein.
【手続補正４】[Procedure amendment 4]
【補正対象書類名】明細書[Document name to be amended] Statement
【補正対象項目名】０００５[Name of item to be corrected] 0005
【補正方法】変更[Correction method] Change
【補正内容】[Correction content]
【０００５】該例に示すキャクドモータポンプは、通電
部分が含まれる固定子１を収納する固定子室３と温水等
の流体の通路であるポンプ室とを隔離する為の前記隔壁
５を樹脂成型で形成する構成では、通常電磁鋼板より成
る前記固定子内周面の精度確保が容易であるのに対し、
樹脂で形成される隔壁５の円筒部外周面は成型寸法の面
でバラツキが避けられないことと、前記固定子と隔壁が
夫々材質が異なり温度変化による熱膨張に差が生ずる事
を考慮して、両者の嵌合寸法を緩く設定する必要が有
り、この為任意の部材同志の組合せでは両者の間に隙間
の発生が避けられなかった。In the cased motor pump shown in the above example, the partition wall 5 for separating the stator chamber 3 accommodating the stator 1 including the energized portion from the pump chamber which is a passage for fluid such as hot water is made of resin. In the structure formed by molding, while it is easy to ensure the accuracy of the inner peripheral surface of the stator, which is usually made of electromagnetic steel sheet,
Considering that the outer peripheral surface of the cylindrical portion of the partition wall 5 made of resin is inevitable in terms of molding size, and that the stator and the partition wall are made of different materials and a difference occurs in thermal expansion due to temperature change. However, it is necessary to loosely set the fitting dimensions of both members. Therefore, it is unavoidable that a gap is created between the two members in any combination of members.
【手続補正５】[Procedure Amendment 5]
【補正対象書類名】明細書[Document name to be amended] Statement
【補正対象項目名】００１１[Correction target item name] 0011
【補正方法】変更[Correction method] Change
【補正内容】[Correction content]
【００１１】図１，図２及び３に示した第１の実施例に
おいて、隔壁２５の円筒部外周面に設けた複数の軸方向
に伸びる小突起２５−１が、軸方向に断続して連なる短
い小突起で形成されている構成としても良い。In the first embodiment shown in FIGS. 1, 2 and 3, a plurality of axially extending small projections 25-1 provided on the outer peripheral surface of the cylindrical portion of the partition wall 25 are continuous in an axially intermittent manner. It may be configured to be formed of short small protrusions.
Claims (6)
成するモータケーシング及びカップ状隔壁と、該カップ
状隔壁と共にインペラと一体を成す前記モータの回転子
収納用回転子室及び該回転子室に連接する前記インペラ
を収納するポンプ室を形成するポンプケーシングとを備
えるキャンドモータポンプにおいて、前記カップ状隔壁
は樹脂より成りそのカップ状円筒部外周面に複数の小突
起が形成され、該小突起を前記固定子の内周面にキャン
ドモータポンプにおいて、前記隔壁の外周面に複数の小
突起が形成され、該小突起と前記固定子の内周面との圧
接嵌合により前記カップ状隔壁を固定子の内周面に固着
保持する構造を特徴とするキャンドモータポンプ。1. A motor casing and a cup-shaped partition wall forming a stator chamber for housing a stator of a drive motor, a rotor chamber for housing the rotor of the motor, and the rotor, which are integrated with an impeller together with the cup-shaped partition wall. In a canned motor pump including a pump casing that forms a pump chamber that accommodates the impeller connected to the chamber, the cup-shaped partition wall is made of resin, and a plurality of small protrusions are formed on the outer peripheral surface of the cup-shaped cylindrical portion. In the canned motor pump, a plurality of small projections are formed on the outer peripheral surface of the partition wall in the canned motor pump, and the cup-shaped partition wall is formed by press-fitting the small projections and the inner peripheral surface of the stator. A canned motor pump characterized by a structure in which a stator is fixedly held on an inner peripheral surface of a stator.
される複数の小突起が、軸方向に長い小突起であること
を特徴とする請求項１に記載のキャンドモータポンプ。2. The canned motor pump according to claim 1, wherein the plurality of small protrusions formed on the outer peripheral surface of the cylindrical portion of the cup-shaped partition wall are small protrusions that are long in the axial direction.
される複数の小突起が、軸方向に断続して連なる複数の
短い小突起であることを特徴とする請求項１に記載のキ
ャンドモータポンプ。3. The cand according to claim 1, wherein the plurality of small projections formed on the outer peripheral surface of the cylindrical portion of the cup-shaped partition wall are a plurality of short small projections that are intermittently continuous in the axial direction. Motor pump.
される複数の小突起が、円周方向に長い小突起であるこ
とを特徴とする請求項１に記載のキャンドモータポン
プ。4. The canned motor pump according to claim 1, wherein the plurality of small protrusions formed on the outer peripheral surface of the cylindrical portion of the cup-shaped partition wall are small protrusions elongated in the circumferential direction.
される複数の小突起が、円周方向に断続して連なる短い
小突起であることを特徴とする請求項１に記載のキャン
ドモータポンプ。5. The canned motor according to claim 1, wherein the plurality of small projections formed on the outer peripheral surface of the cylindrical portion of the cup-shaped partition wall are short small projections that are intermittently continuous in the circumferential direction. pump.
される複数の小突起と、前記固定子の内周面との圧接部
周辺の前記カップ状隔壁の円筒部外周面と前記固定子の
内周面との隙間に接着剤が塗布されていることを特徴と
する請求項２，３，４及び５項に記載のキャンドモータ
ポンプ。6. A plurality of small projections formed on the outer peripheral surface of the cylindrical portion of the cup-shaped partition wall, the outer peripheral surface of the cylindrical portion of the cup-shaped partition wall around the pressure contact portion with the inner peripheral surface of the stator, and the stator. The canned motor pump according to claim 2, 3, 4, or 5, wherein an adhesive is applied to a gap between the inner peripheral surface of the canned motor pump and the inner peripheral surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4353712A JP2640411B2 (en) | 1992-12-15 | 1992-12-15 | Canned motor pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4353712A JP2640411B2 (en) | 1992-12-15 | 1992-12-15 | Canned motor pump |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH06200895A true JPH06200895A (en) | 1994-07-19 |
| JP2640411B2 JP2640411B2 (en) | 1997-08-13 |
Family
ID=18432715
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4353712A Expired - Fee Related JP2640411B2 (en) | 1992-12-15 | 1992-12-15 | Canned motor pump |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2640411B2 (en) |
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100424275B1 (en) * | 2002-01-14 | 2004-03-30 | 문동철 | The motor pump |
| JP2006029253A (en) * | 2004-07-20 | 2006-02-02 | Matsushita Electric Ind Co Ltd | Canned pump |
| JP2007151210A (en) * | 2005-11-24 | 2007-06-14 | Nippon Densan Corp | Brushless motor |
| JP2009254194A (en) * | 2008-04-10 | 2009-10-29 | Asmo Co Ltd | Motor structure |
| JP2009284704A (en) * | 2008-05-23 | 2009-12-03 | Panasonic Electric Works Co Ltd | Pump |
| WO2013047027A1 (en) * | 2011-09-27 | 2013-04-04 | パナソニック株式会社 | Pump |
| KR20130111411A (en) * | 2012-03-29 | 2013-10-10 | 가부시키가이샤 에바라 세이사꾸쇼 | Canned motor, vacuum pump |
| JP2014057506A (en) * | 2012-08-13 | 2014-03-27 | Ebara Corp | Canned motor, vacuum pump |
| JP2017015002A (en) * | 2015-07-01 | 2017-01-19 | 日本電産サンキョー株式会社 | Pump device |
| CN106640674A (en) * | 2015-10-30 | 2017-05-10 | 浙江三花汽车零部件有限公司 | Manufacturing method for electric driving pump |
| CN109795839A (en) * | 2017-11-16 | 2019-05-24 | 中国计量大学 | Underwater Engineering conveyer belt |
| WO2022148643A1 (en) * | 2021-01-08 | 2022-07-14 | Vitesco Technologies GmbH | Fluid pump |
| LU102802B1 (en) * | 2021-05-10 | 2022-11-10 | Wilo Se | glandless pump |
| WO2023149074A1 (en) * | 2022-02-07 | 2023-08-10 | 日立Astemo株式会社 | Electric water pump and assembly method for electric water pump |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5692793U (en) * | 1979-12-18 | 1981-07-23 | ||
| JPS59103988A (en) * | 1982-12-06 | 1984-06-15 | Matsushita Electric Ind Co Ltd | Magnetic coupling pump |
| JPS61178595A (en) * | 1985-02-05 | 1986-08-11 | Sanyo Electric Co Ltd | Pump |
| JPH01290996A (en) * | 1988-05-16 | 1989-11-22 | Sanyo Electric Co Ltd | Canned pump |
-
1992
- 1992-12-15 JP JP4353712A patent/JP2640411B2/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5692793U (en) * | 1979-12-18 | 1981-07-23 | ||
| JPS59103988A (en) * | 1982-12-06 | 1984-06-15 | Matsushita Electric Ind Co Ltd | Magnetic coupling pump |
| JPS61178595A (en) * | 1985-02-05 | 1986-08-11 | Sanyo Electric Co Ltd | Pump |
| JPH01290996A (en) * | 1988-05-16 | 1989-11-22 | Sanyo Electric Co Ltd | Canned pump |
Cited By (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100424275B1 (en) * | 2002-01-14 | 2004-03-30 | 문동철 | The motor pump |
| JP2006029253A (en) * | 2004-07-20 | 2006-02-02 | Matsushita Electric Ind Co Ltd | Canned pump |
| JP2007151210A (en) * | 2005-11-24 | 2007-06-14 | Nippon Densan Corp | Brushless motor |
| JP2009254194A (en) * | 2008-04-10 | 2009-10-29 | Asmo Co Ltd | Motor structure |
| JP2009284704A (en) * | 2008-05-23 | 2009-12-03 | Panasonic Electric Works Co Ltd | Pump |
| WO2013047027A1 (en) * | 2011-09-27 | 2013-04-04 | パナソニック株式会社 | Pump |
| EP2645542A3 (en) * | 2012-03-29 | 2017-09-20 | Ebara Corporation | Canned motor and vacuum pump |
| US9614411B2 (en) | 2012-03-29 | 2017-04-04 | Ebara Corporation | Canned motor and vacuum pump |
| US9660496B2 (en) | 2012-03-29 | 2017-05-23 | Ebara Corporation | Canned motor and vacuum pump |
| KR20130111411A (en) * | 2012-03-29 | 2013-10-10 | 가부시키가이샤 에바라 세이사꾸쇼 | Canned motor, vacuum pump |
| US10320260B2 (en) | 2012-03-29 | 2019-06-11 | Ebara Corporation | Canned motor and vacuum pump |
| JP2014057506A (en) * | 2012-08-13 | 2014-03-27 | Ebara Corp | Canned motor, vacuum pump |
| JP2017015002A (en) * | 2015-07-01 | 2017-01-19 | 日本電産サンキョー株式会社 | Pump device |
| CN106640674A (en) * | 2015-10-30 | 2017-05-10 | 浙江三花汽车零部件有限公司 | Manufacturing method for electric driving pump |
| CN109795839A (en) * | 2017-11-16 | 2019-05-24 | 中国计量大学 | Underwater Engineering conveyer belt |
| WO2022148643A1 (en) * | 2021-01-08 | 2022-07-14 | Vitesco Technologies GmbH | Fluid pump |
| LU102802B1 (en) * | 2021-05-10 | 2022-11-10 | Wilo Se | glandless pump |
| EP4089284A1 (en) * | 2021-05-10 | 2022-11-16 | Wilo Se | Wet rotor pump |
| WO2023149074A1 (en) * | 2022-02-07 | 2023-08-10 | 日立Astemo株式会社 | Electric water pump and assembly method for electric water pump |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2640411B2 (en) | 1997-08-13 |
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