WO2009133648A1 - 電動モータにおけるアーマチュアおよび該アーマチュアの製造方法 - Google Patents
電動モータにおけるアーマチュアおよび該アーマチュアの製造方法 Download PDFInfo
- Publication number
- WO2009133648A1 WO2009133648A1 PCT/JP2009/000687 JP2009000687W WO2009133648A1 WO 2009133648 A1 WO2009133648 A1 WO 2009133648A1 JP 2009000687 W JP2009000687 W JP 2009000687W WO 2009133648 A1 WO2009133648 A1 WO 2009133648A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- armature
- core plate
- core
- commutator
- resin material
- Prior art date
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Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K3/00—Details of windings
- H02K3/44—Protection against moisture or chemical attack; Windings specially adapted for operation in liquid or gas
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M37/00—Apparatus or systems for feeding liquid fuel from storage containers to carburettors or fuel-injection apparatus; Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines
- F02M37/04—Feeding by means of driven pumps
- F02M37/08—Feeding by means of driven pumps electrically driven
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K1/00—Details of the magnetic circuit
- H02K1/04—Details of the magnetic circuit characterised by the material used for insulating the magnetic circuit or parts thereof
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K13/00—Structural associations of current collectors with motors or generators, e.g. brush mounting plates or connections to windings; Disposition of current collectors in motors or generators; Arrangements for improving commutation
- H02K13/04—Connections between commutator segments and windings
Definitions
- the present invention belongs to the technical field of an electric motor, particularly an armature of an electric motor used as a drive source of a fuel pump for supplying a fuel containing an alcohol component, and a method of manufacturing the armature.
- an electric motor is used as a drive source of a fuel pump, and some of such fuel pumps allow fuel to flow directly through the electric motor.
- alcohol especially ethanol
- alcohol functions as an acid electrochemically, and as a result, it corrodes the iron component which comprises an armature (armature core, rotor), and has become a factor of generating rust. This rusting becomes more pronounced as the alcohol content increases.
- Patent Documents 1 to 3 JP-A-6-122133 Japanese Patent Application Publication No. 8-510817 JP 2003-116248 A
- the present invention has been made in view of the above-mentioned circumstances in order to solve these problems, and the invention of claim 1 is formed by winding a coil on a laminated core plate material.
- the armature comprises at least a brush sliding surface of the commutator and an outer peripheral surface of the core member.
- the core plate material is an armature in an electric motor characterized in that the core plate material is plated in advance before being molded with a resin material so as to be molded with a resin material except for.
- the invention according to claim 2 is the armature of the electric motor according to claim 1, wherein the core plate material is one which is plated in advance and is incorporated into the armature shaft.
- the invention according to claim 3 is the armature of the electric motor according to claim 1, wherein the core plate is plated in a state before winding the coil after being incorporated into the armature shaft.
- an armature is constituted by using a core portion formed by winding a coil on a laminated core plate material, a commutator in sliding contact with the brush, and an armature shaft penetrating the core portion and the commutator.
- the resin material is molded with a resin material after the step of plating the core plate material. It is a manufacturing method of an armature in an electric motor characterized by having a process of
- the plating on the boundary portion with the resin material is applied without being disturbed by the resin material and is exposed.
- the outer peripheral surface of the core plate material is also plated well to the boundary portion with the resin material, and it becomes excellent in alcohol resistance.
- reference numeral 1 denotes a fuel pump that constitutes a fuel supply device, and the fuel pump 1 is attached to a fuel tank (not shown), but the fuel pump 1 is arranged in a straight line up and down It comprises a motor unit M and a pump unit P.
- the motor unit M and the pump unit P are housed in a cylindrical yoke 4 having a permanent magnet 3 fixed to the inner peripheral surface, but upper and lower brackets 5 and 6 are attached to the upper and lower end portions of the yoke 4 respectively. It is done.
- Reference numeral 7 denotes an armature, which will be described later, which constitutes the motor unit M.
- the armature 7 is formed by laminating a core plate material 8a and winding a coil 8b on the core plate 8a.
- the commutator 9 is provided with an armature shaft (motor shaft) 10 penetrating the core portion 8 and the commutator 9, and the armature 7 has a posture in which the core portion 8 faces the inner peripheral surface of the permanent magnet 3.
- the upper and lower end portions of the armature shaft 10 are rotatably supported by the upper and lower brackets 5 and 6 so as to be incorporated in the yoke 4.
- On the upper surface of the commutator 9, a brush 11 resiliently supported by the upper bracket 5 via a bullet 11a is in sliding contact.
- the armature 7 is set to drive and rotate by exciting the coil 8b by the supply of the brush external power supply.
- An impeller 11 is provided at a lower end portion 10 a penetrating downward from the lower bracket 6 of the armature shaft 10 so as to constitute a pump portion P, and the impeller 11 is a casing 12 provided in a stacked manner below the lower bracket 6. Embedded in Then, when the impeller 11 rotates with the rotational drive of the armature 7 described above, the fuel flows into the pump portion P from the inlet 12 a provided in the casing 12, and the inflowing fuel passes through the motor portion M and the upper bracket 5. It supplies and discharges from the supply port (discharge port) 5a of formation.
- the armature 7 is configured to include the core portion 8, the commutator 9 and the armature shaft 10 as described above, but in the present embodiment, the commutator 9 is a carbon commutator excellent in alcohol resistance. It is adopted.
- the core portion 8 is formed by plating the core plate material 8a with a metal having alcohol resistance (for example, a metal such as tin, zinc, nickel, etc.), and winding the coil 9 thereafter. There is.
- the outer peripheral surface of the core plate member 8a and the brush sliding surface of the commutator 9 are exposed to the armature 7 thus formed and molded with the resin material 13, and the armature is thus formed.
- the sufficient plating not to be disturbed by the mold resin material 13 is applied also to the boundary portion of the outer peripheral surface of the core plate material 8a exposed with the mold resin material 13, thereby the core plate material 8a Can be protected from alcohol to prevent the occurrence of rust, and the life extension of the fuel pump 1 can be achieved.
- the present invention is not limited to the embodiment described above, and the plating of the core plate 8a is not limited to that performed after the core plate 8 is stacked and assembled on the armature shaft 10, and the core plate 8a may be performed alone, and thereafter, the core plate material plated may be laminated, and after the plating and lamination are performed in this way, coil winding and molding with a resin material are performed.
- the present invention can be implemented in
- the present invention relates to an armature for an electric motor, particularly an electric motor used as a drive source of a fuel pump for supplying a fuel containing an alcohol component, and to a technical field belonging to the technical field of a method of manufacturing the armature.
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Manufacture Of Motors, Generators (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
- Motor Or Generator Frames (AREA)
- Iron Core Of Rotating Electric Machines (AREA)
- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
Abstract
Description
これに対処するため、アーマチュアを樹脂モールドしてアルコールによる錆発生の防止を図るようにしたものがある(例えば特許文献1~3)。
そこで前記樹脂モールドしたものについて露出するコア板材の外周面を、アルコールによる腐食作用を受けづらい金属で鍍金することを試みた。このようにすることで、コア材外周面はアルコールによる錆発生が抑制されたが、さらに長時間、ポンプ駆動をしてアルコールに晒したところ、コア板材のモールド樹脂材との境界部分に錆発生することが認められた。この原因を解析したところ、コア板材のモールド樹脂材との境界部分は、モールド樹脂材が邪魔をして鍍金が不十分であって、鍍金厚が薄かったり鍍金さていない部分が発生し、ここから錆が発生していることが確認され、ここに本発明の解決すべき課題がある。
請求項2の発明は、コア板材は、予め鍍金されたものをアーマチュア軸に組込んだものであることを特徴とする請求項1記載の電動モータにおけるアーマチュアである。
請求項3の発明は、コア板材は、アーマチュア軸に組込まれた後、コイルを巻装する前の状態で鍍金されたものであることを特徴とする請求項1記載の電動モータにおけるアーマチュアである。
請求項4の発明は、積層されたコア板材にコイルを巻装して形成されるコア部と、ブラシが摺接するコンミテータと、コア部およびコンミテータを貫通するアーマチュア軸とを用いてアーマチュアを構成してなる電動モータにおいて、前記アーマチュアを、少なくともコンミテータのブラシ摺接面とコア材外周面とを残して樹脂材でモールドされたものにするにあたり、コア板材を鍍金する工程の後に、樹脂材でモールドする工程があることを特徴とする電動モータにおけるアーマチュアの製造方法である。
請求項2または3の発明とすることにより、コア板材の鍍金を簡単にすることができる。
4 ヨーク
7 アーマチュア
8 コア部
8a コア板材
9 コンミテータ
10 アーマチュア軸
13 モールド樹脂材
Claims (4)
- 積層されたコア板材にコイルを巻装して形成されるコア部と、ブラシが摺接するコンミテータと、コア部およびコンミテータを貫通するアーマチュア軸とを用いてアーマチュアを構成してなる燃料ポンプのモータ部において、前記アーマチュアを、少なくともコンミテータのブラシ摺接面とコア材外周面とを残して樹脂材でモールドされたものにするにあたり、コア板材は、樹脂材でモールドされる以前に予め鍍金されたものであることを特徴とする電動モータにおけるアーマチュア。
- コア板材は、予め鍍金されたものをアーマチュア軸に組込んだものであることを特徴とする請求項1記載の電動モータにおけるアーマチュア。
- コア板材は、アーマチュア軸に組込まれた後、コイルを巻装する前の状態で鍍金されたものであることを特徴とする請求項1記載の電動モータにおけるアーマチュア。
- 積層されたコア板材にコイルを巻装して形成されるコア部と、ブラシが摺接するコンミテータと、コア部およびコンミテータを貫通するアーマチュア軸とを用いてアーマチュアを構成してなる電動モータにおいて、前記アーマチュアを、少なくともコンミテータのブラシ摺接面とコア材外周面とを残して樹脂材でモールドされたものにするにあたり、コア板材を鍍金する工程の後に、樹脂材でモールドする工程があることを特徴とする電動モータにおけるアーマチュアの製造方法。
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
BRPI0911527A BRPI0911527B8 (pt) | 2008-04-28 | 2009-02-19 | induzido em um motor para uma bomba de combustível, e, método para manufaturar um induzido em um motor para uma bomba de combustível |
JP2010510001A JP5400767B2 (ja) | 2008-04-28 | 2009-02-19 | 燃料ポンプ用モータにおけるアーマチュアおよび該アーマチュアの製造方法 |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
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JP2008-116668 | 2008-04-28 | ||
JP2008116668 | 2008-04-28 |
Publications (1)
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WO2009133648A1 true WO2009133648A1 (ja) | 2009-11-05 |
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ID=41254875
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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PCT/JP2009/000687 WO2009133648A1 (ja) | 2008-04-28 | 2009-02-19 | 電動モータにおけるアーマチュアおよび該アーマチュアの製造方法 |
Country Status (3)
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JP (1) | JP5400767B2 (ja) |
BR (1) | BRPI0911527B8 (ja) |
WO (1) | WO2009133648A1 (ja) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR101538699B1 (ko) * | 2013-12-06 | 2015-07-22 | 현담산업 주식회사 | 연료펌프의 아마추어의 도금 및 코팅 방법 |
WO2020149383A1 (ja) * | 2019-01-16 | 2020-07-23 | 株式会社ミツバ | モータユニット及び液体供給装置 |
Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
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JPS62290329A (ja) * | 1986-06-05 | 1987-12-17 | Matsushita Electric Ind Co Ltd | 防錆形ステツピングモ−タの製造方法 |
JPH06122133A (ja) * | 1992-10-12 | 1994-05-06 | Junichi Takasaki | 回転子の樹脂パッケージ成形方法 |
JPH06233481A (ja) * | 1993-01-29 | 1994-08-19 | Matsushita Electric Ind Co Ltd | モータの鉄心 |
JPH06284681A (ja) * | 1993-03-31 | 1994-10-07 | Seikosha Co Ltd | モータ用ステータの製造方法 |
JPH08510817A (ja) * | 1994-03-18 | 1996-11-12 | ローベルト ボツシユ ゲゼルシヤフト ミツト ベシユレンクテル ハフツング | 燃料を貯蔵容器から内燃機関へ搬送するための装置 |
JPH0965590A (ja) * | 1995-08-29 | 1997-03-07 | Matsushita Electric Ind Co Ltd | モータのステータコアおよびその製造方法 |
JP2002369424A (ja) * | 2001-06-06 | 2002-12-20 | Ebara Corp | 永久磁石型モータ |
JP2005057952A (ja) * | 2003-08-07 | 2005-03-03 | Matsushita Electric Ind Co Ltd | 小径モータ |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
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JP2006022733A (ja) * | 2004-07-08 | 2006-01-26 | Keihin Corp | 電動燃料ポンプ |
JP2007205246A (ja) * | 2006-02-01 | 2007-08-16 | Toyota Motor Corp | ウォータポンプおよびハイブリッド車両 |
-
2009
- 2009-02-19 WO PCT/JP2009/000687 patent/WO2009133648A1/ja active Application Filing
- 2009-02-19 BR BRPI0911527A patent/BRPI0911527B8/pt active IP Right Grant
- 2009-02-19 JP JP2010510001A patent/JP5400767B2/ja active Active
Patent Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
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JPS62290329A (ja) * | 1986-06-05 | 1987-12-17 | Matsushita Electric Ind Co Ltd | 防錆形ステツピングモ−タの製造方法 |
JPH06122133A (ja) * | 1992-10-12 | 1994-05-06 | Junichi Takasaki | 回転子の樹脂パッケージ成形方法 |
JPH06233481A (ja) * | 1993-01-29 | 1994-08-19 | Matsushita Electric Ind Co Ltd | モータの鉄心 |
JPH06284681A (ja) * | 1993-03-31 | 1994-10-07 | Seikosha Co Ltd | モータ用ステータの製造方法 |
JPH08510817A (ja) * | 1994-03-18 | 1996-11-12 | ローベルト ボツシユ ゲゼルシヤフト ミツト ベシユレンクテル ハフツング | 燃料を貯蔵容器から内燃機関へ搬送するための装置 |
JPH0965590A (ja) * | 1995-08-29 | 1997-03-07 | Matsushita Electric Ind Co Ltd | モータのステータコアおよびその製造方法 |
JP2002369424A (ja) * | 2001-06-06 | 2002-12-20 | Ebara Corp | 永久磁石型モータ |
JP2005057952A (ja) * | 2003-08-07 | 2005-03-03 | Matsushita Electric Ind Co Ltd | 小径モータ |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR101538699B1 (ko) * | 2013-12-06 | 2015-07-22 | 현담산업 주식회사 | 연료펌프의 아마추어의 도금 및 코팅 방법 |
WO2020149383A1 (ja) * | 2019-01-16 | 2020-07-23 | 株式会社ミツバ | モータユニット及び液体供給装置 |
JP7371024B2 (ja) | 2019-01-16 | 2023-10-30 | 株式会社ミツバ | モータユニット及び液体供給装置 |
Also Published As
Publication number | Publication date |
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JPWO2009133648A1 (ja) | 2011-08-25 |
BRPI0911527B1 (pt) | 2019-10-22 |
BRPI0911527A2 (pt) | 2015-10-13 |
JP5400767B2 (ja) | 2014-01-29 |
BRPI0911527B8 (pt) | 2019-11-19 |
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