WO2014054184A1 - 電動機、ポンプ、および電動機の製造方法 - Google Patents
電動機、ポンプ、および電動機の製造方法 Download PDFInfo
- Publication number
- WO2014054184A1 WO2014054184A1 PCT/JP2012/076041 JP2012076041W WO2014054184A1 WO 2014054184 A1 WO2014054184 A1 WO 2014054184A1 JP 2012076041 W JP2012076041 W JP 2012076041W WO 2014054184 A1 WO2014054184 A1 WO 2014054184A1
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- WIPO (PCT)
- Prior art keywords
- mold stator
- stator
- electric motor
- foot plate
- capacitor assembly
- Prior art date
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- 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
- H02K5/22—Auxiliary parts of casings not covered by groups H02K5/06-H02K5/20, e.g. shaped to form connection boxes or terminal boxes
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K17/00—Asynchronous induction motors; Asynchronous induction generators
- H02K17/02—Asynchronous induction motors
- H02K17/04—Asynchronous induction motors for single phase current
- H02K17/08—Motors with auxiliary phase obtained by externally fed auxiliary windings, e.g. capacitor motors
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/02—Casings or enclosures characterised by the material thereof
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K9/00—Arrangements for cooling or ventilating
- H02K9/02—Arrangements for cooling or ventilating by ambient air flowing through the machine
- H02K9/04—Arrangements for cooling or ventilating by ambient air flowing through the machine having means for generating a flow of cooling medium
- H02K9/06—Arrangements for cooling or ventilating by ambient air flowing through the machine having means for generating a flow of cooling medium with fans or impellers driven by the machine shaft
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/49—Method of mechanical manufacture
- Y10T29/49002—Electrical device making
- Y10T29/49009—Dynamoelectric machine
- Y10T29/49012—Rotor
Definitions
- the present invention relates to an electric motor, a pump, and a method for manufacturing the electric motor.
- a conventional electric motor includes a cylindrical rotor, a stator formed by winding a coil wound around a stator core surrounding the rotor with a resin insulator, and a resin insulation on one end side of the stator.
- a bearing housing installed on the inner periphery of the object, a bearing bracket that engages with the other end surface of the stator, a rotating shaft that is indicated by a bearing provided on each of the bearing housing and the bearing bracket, and one end surface of the stator
- a fan cover that surrounds the outer fan and blows cooling air by the action of the outer fan toward the outer periphery of the stator (for example, the following patent document) 1).
- the outer periphery of the resin insulator is aligned with the outer periphery of the stator core to form a stator.
- a plurality of stays are radially arranged on the outer periphery of the stator so as to be long in the axial direction, and the stays are integrally formed of a resin insulator.
- a fan cover is attached to the outer periphery of the stay.
- the present invention has been made in view of the above, and an object thereof is to obtain an electric motor, a pump, and a method for manufacturing the electric motor that can further reduce the cost.
- the present invention includes a molded stator in which a rotor is included and the stator is molded with a thermosetting resin, and projects from one end surface of the molded stator.
- a cooling fan that is assembled to the end of the rotor shaft, a fan cover that covers the cooling fan, a capacitor assembly box that is installed in the mold stator and into which a capacitor is incorporated, and is installed in the mold stator
- a foot plate and a bracket provided on the other end side of the mold stator, and the fan cover includes a nail that is locked to the capacitor assembly box and a nail that is locked to the foot plate.
- the capacitor assembly box and the foot plate are formed with holes for retaining the claws.
- the claw provided on the fan cover is configured to be locked to the foot plate or the like, the above-described separate parts are not required, and the cost can be further reduced. Play.
- FIG. 1 is a perspective view of a stator according to first and second embodiments of the present invention.
- FIG. 2 is an exploded perspective view of the electric motor according to the first embodiment of the present invention.
- FIG. 3 is a cross-sectional view of the electric motor shown in FIG.
- FIG. 4 is an exploded perspective view of the electric motor according to the second embodiment of the present invention.
- FIG. 5 is a cross-sectional view of the electric motor shown in FIG.
- FIG. 1 is a perspective view of a stator 1 according to Embodiments 1 and 2 of the present invention
- FIG. 2 is an exploded perspective view of an electric motor 100 according to Embodiment 1 of the present invention
- FIG. It is sectional drawing of the electric motor 100 shown by FIG.
- the stator 1 shown in FIG. 1 is used for, for example, a single-phase induction motor, and in the present embodiment, it will be described as the stator 1 used for a single-phase induction motor.
- the stator core 3 is formed by punching out electromagnetic steel sheets having a thickness of about 0.35 to 0.50 mm and laminating them by caulking, welding, or the like.
- End end insulating plates 2 formed by molding a thermoplastic resin such as PBT (polybutylene terephthalate) are assembled to both axial end surfaces of the stator core 3.
- the end surface insulating plate 2 has a flat plate shape, and has an outer diameter that is slightly larger than the outer diameter of the stator core 3 and an inner diameter that is slightly larger than the inner diameter of each slot (not shown) of the stator core 3. Has been. Further, a notch (not shown) having substantially the same shape as the slot is formed on the inner diameter side of the end face insulating plate 2.
- the winding of the stator 1 is composed of a main winding and an auxiliary winding, and a lead wire 7 is connected to the main winding and the auxiliary winding.
- the lead wire 7 is connected to a power source, and power is supplied to the main winding and the auxiliary winding.
- the stator 1 of the single-phase induction motor uses a total of three lead wires 7 including two lead wires 7 connected to the coil terminal and one lead wire 7 connected to a protector described later. .
- the lead wire lead-out component is disposed on the axial end face of the stator core 3 and is formed by molding a thermoplastic resin such as PBT.
- the lead wire lead-out component includes a capacitor assembly box mounting portion (hereinafter referred to as “box mounting portion”) 33 having a pilot hole (see FIG. 2) for a tapping screw. That is, the lead wire lead-out component is composed of the lead wire lead-out portion 8 and the box mounting portion 33.
- the wedge 10 prevents the coil from protruding from the slot opening 12 of the stator core 3 to the inner diameter side, and the coil and the tip portion (inner diameter side) of the teeth 11. Used to insulate.
- the binding thread 4 is wound around the outer peripheral side of the stator core 3, the outer side of each coil end portion 9, and the inner diameter side of the teeth 11.
- the protector protection component 5 incorporates a protector that protects the electric motor 100 (for example, interrupts current when the coil reaches a predetermined temperature or higher).
- the protector protection component 5 is bound to the outer side of one of the two coil end portions 9 using the binding thread 4.
- the mold stator 30 is obtained by molding the stator 1 with a thermosetting resin mold resin.
- a box attachment portion 33 is formed on the outer peripheral portion of the mold stator 30, and the lead wire lead-out portion 8 and the box attachment protrusion are exposed from the outer surface of the box attachment portion 33.
- the leading end portion of the lead wire lead-out portion 8 is exposed from the box mounting portion 33, whereby the lead wire 7 wired radially outward from the lead wire lead-out portion 8 is exposed to the outside of the mold stator 30.
- the box mounting protrusion that appears on the box mounting portion 33 includes a pilot hole 34 for a screw 82 (for example, a tapping screw) that fixes the capacitor assembly box 80 to the mold stator 30.
- a screw 82 for example, a tapping screw
- two pilot holes 34 are provided so as to be exposed on the radially outer surface of the box mounting portion 33.
- a foot plate attachment portion 32 is formed on the outer peripheral portion of the mold stator 30 at a portion opposite to the box attachment portion 33.
- the foot plate attachment portion 32 is integrally formed with the foot plate attachment component 20 by a thermoplastic resin such as PBT.
- the footplate installation surface 24 of the some screw fastening part 25 (refer FIG. 1) which comprises the footplate attachment component 20 exposes from the footplate attachment part 32 (refer FIG. 3).
- each screw fastening portion 25 extends from a foot plate installation surface 24 to a stator installation surface. It is formed in a cylindrical shape whose diameter increases toward 26. The reason why the screw fastening portion 25 has such a shape is to prevent the screw fastening portion 25 from coming out radially outward of the stator 1 after the foot plate attachment component 20 is molded together with the stator 1. is there.
- a plurality of screw fastening portions 25 are provided on the outer peripheral surface of each screw fastening portion 25 to prevent the screw fastening portions 25 from rotating when fastening screws 64 (for example, tapping screws) for fastening the foot plate 60 to the mold stator 30.
- the projection 23 is formed.
- a pilot hole 21 into which a screw 64 is screwed is formed in the foot plate installation surface 24 of each screw fastening portion 25.
- the stator installation surface 26 is curved and formed corresponding to the outer peripheral surface of the stator core 3.
- the footplate attachment component 20 is configured such that each screw fastening portion 25 is connected by the thin portion 22, it is not necessary to set each screw fastening portion 25 individually in the mold. Cost can be reduced.
- the change of the kind and attachment position of the footplate attachment component 20 can respond by the change of the attachment part of the footplate attachment component 20 in a metal mold
- An electric motor 100 shown in FIG. 2 mainly includes a mold stator 30, a cooling fan 41, a fan cover 50, a foot plate 60, a rotor assembly 70, a bracket 90, and a capacitor assembly box 80. And a capacitor 81.
- the mold stator 30 is integrally formed with a thermosetting resin in a state where the stator 1 and the foot plate mounting component 20 shown in FIG. 1 are set at predetermined positions of the mold.
- the foot plate mounting component 20 is pressed against the outer peripheral surface of the stator 1 and molded, so that the inside of the screw fastening portion 25 is interposed between the stator installation surface 26 and the stator core 3. Intrusion of mold resin into is suppressed.
- the mold resin can be prevented from leaking to the foot plate installation surface 24, and the quality of the mold stator 30 can be improved.
- the rotor assembly 70 includes a rotor 75, a shaft 74, two bearings 72 and 73, and a bearing cover 71.
- the rotor assembly 70 is assembled to the mold stator 30 after the spring washer 40 is assembled from the anti-fan cover 50 side of the mold stator 30.
- a bracket 90 is assembled to the mold stator 30 to which the rotor assembly 70 is assembled on the side of the mold stator 30 opposite to the fan cover 50.
- Screws 93 are inserted into holes 95 provided on the inner diameter side of the bracket 90, and the bearing cover 71 is fixed by screwing the screws 93 into the holes 76 of the bearing cover 71. Accordingly, it is possible to suppress the displacement of the bearing 72 toward the rotor 75 while the rotor 75 is rotating.
- a plurality of legs 35 are provided on the outer peripheral surface of the mold stator 30.
- Each leg portion 35 is provided to extend in the radial direction in the vicinity of the end portion 36 of the mold stator 30 on the side opposite to the fan cover 50.
- the bracket 90 is formed with a plurality of leg portions 91 extending outward in the radial direction of the bracket 90 on the end surface 94 on the mold stator 30 side. Since the leg portion 91 is formed with a hole 92 penetrating in the axial direction, and the leg portion 35 is also formed with the hole 31 penetrating in the axial direction, a screw (not shown) inserted into the hole 92 of the leg portion 91 is formed. ) Is screwed into the hole 31 of the leg portion 35, so that the bracket 90 assembled to the mold stator 30 is fixed.
- the flinger 43 is fitted into the shaft 74 so as to be close to the bracket 90 in order to prevent foreign matter from accumulating near the gap between the shaft 74 and the bracket 90 when the electric motor 100 is used for a pump, for example.
- the cooling fan 41 for cooling the electric motor 100 is formed by molding a thermoplastic resin such as PA (polyamide).
- the cooling fan 41 includes a disk-shaped thin portion 41 b and a plurality of blades 41 a provided on the anti-mold stator 30 side of the thin portion 41 b, and the shaft of the rotor assembly 70 assembled to the mold stator 30. 74, that is, assembled to the shaft 74 protruding outside the mold stator 30. Thereafter, the C ring 42 is assembled to the shaft 74. This can prevent the blade 41a of the cooling fan 41 from coming into contact with the fan cover 50.
- the fan cover 50 is installed to protect the cooling fan 41 and is formed of a thermoplastic resin such as PA (polyamide) into a thin dome shape (conical shape), for example, and the opening 54 covers the cooling fan 41. As shown in FIG.
- the fan cover 50 is provided with an air intake 52 at a position facing the blade 41a.
- the fan cover 50 is formed with a claw 51 extending in the radial direction and locked to the capacitor assembly box 80 and a claw 53 extending in the radial direction and locked to the foot plate 60.
- the claw 51 is formed so as to be locked in the fan cover fixing hole 83 formed in the capacitor assembly box 80, and the claw 53 is formed in the fan cover 50 fixing hole 63 formed in the foot plate 60. It is formed to be locked.
- the claw 51 is provided on the outer peripheral surface of the fan cover 50, but the attachment position of the claw 51 is not limited to the outer peripheral surface of the fan cover 50.
- the foot plate 60 is formed by sheet metal press molding, and includes a mold stator installation surface 65 and an electric motor installation surface 67.
- the mold stator installation surface 65 has a plurality of holes 61 (for example, three) corresponding to the pilot holes 21 exposed from the foot plate mounting portion 32 of the mold stator 30 and holes 63 for fixing the fan cover 50. Is formed.
- the electric motor installation surface 67 is for installing the electric motor 100 in a pump tank, for example, and the electric motor installation surface 67 has a hole 62 for fixing the electric motor 100.
- the foot plate 60 is fixed to the mold stator 30 by screwing a screw 64 (see FIG. 3) inserted into the hole 61 of the mold stator installation surface 65 into the hole 21 of the foot plate mounting component 20.
- the screw 64 for assembling the ground wire 66 has such a length that the tip thereof is in contact with the stator core 3 when the foot plate 60 is screwed. .
- the stator core 3 can be grounded without using another part for providing grounding, and the cost of parts can be reduced.
- the capacitor assembly box 80 is formed by molding a thermoplastic resin such as PP (polypropylene).
- the capacitor assembly box 80 is formed with a plurality of holes 84 (for example, two) corresponding to the pilot holes 34 exposed from the box mounting portion 33 of the mold stator 30 and a hole 83 for fixing the fan cover. Yes.
- the capacitor assembly box 80 is fixed to the mold stator 30 by screwing the screw 82 inserted into the hole 92 of the capacitor assembly box 80 into the prepared hole 34 of the box attachment portion 33.
- the claw 51 of the fan cover 50 is locked in the hole 83 of the capacitor assembly box 80, and the claw 53 of the fan cover 50 is engaged with the hole 63 of the foot plate 60. It is locked to. As a result, the fan cover 50 is fixed to the mold stator 30.
- the lead wire 7 from the lead wire lead-out portion 8 is drawn into the capacitor assembly box 80 installed in the mold stator 30, and the lead wire 7 drawn into the capacitor assembly box 80 is connected to the capacitor assembly box 80. It is connected to the capacitor 81 assembled in the attachment box 80.
- the cooling fan 41 assembled to the shaft 74 is rotated in conjunction with the rotor 75.
- the cooling fan 41 rotates air is taken in from the air intake 52, and the air taken in from the air intake 52 flows through the outer peripheral surface of the mold stator 30, thereby cooling the mold stator 30.
- Step 1 First, the stator 1 is manufactured, and the rotor assembly 70, the bracket 90, the foot plate 60, the cooling fan 41, the fan cover 50, the capacitor assembly box 80, and the ground wire 66 are manufactured.
- Step 2 The molded stator 30 and the foot plate attachment component 20 are molded to form a molded stator 30.
- Step 3 Drilling is performed until one of the pilot holes 21 provided in the foot plate attachment component 20 reaches the stator core 3.
- Step 4 Next, these components are assembled to the mold stator 30 in the order of the spring washer 40, the rotor assembly 70, the bracket 90, and the screw 93.
- Step 5 The cooling fan 41 is assembled to the mold stator 30 and the C ring 42 is assembled to the shaft 74 protruding from the mold stator 30.
- Step 6 The foot plate 60 and the capacitor assembly box 80 are assembled to the mold stator 30. At this time, the ground wire 66 is assembled by the screw 64.
- Step 7 The claw 51 provided in the fan cover 50 is locked in the hole 83 of the capacitor assembly box 80, and the claw 53 provided in the fan cover 50 is in the hole 63 of the foot plate 60. Locked. As a result, the fan cover 50 is fixed to the mold stator 30.
- Step 8 Finally, the lead wire 7 drawn into the capacitor assembly box 80 is connected to the capacitor 81, whereby the electric motor 100 is completed.
- the electric motor 100 including the cooling fan 41 can be efficiently manufactured.
- the electric motor 100 concerning this Embodiment is used as a drive part of a household pump, for example, By using the electric motor 100, reduction of the components cost and processing cost of a pump can be aimed at.
- the electric motor 100 includes the mold stator 30 in which the rotor 75 is included and the stator 1 is molded with a thermosetting resin, and one of the mold stators 30.
- a cooling fan 41 assembled at the end of the rotor shaft (shaft 74) protruding from the end face, a fan cover 50 covering the cooling fan 41, and a capacitor assembly installed in the mold stator 30 and incorporating a capacitor 81
- a box 80, a foot plate 60 installed on the mold stator 30, and a bracket 90 provided on the other end side of the mold stator 30 are provided.
- the fan cover 50 is locked to the capacitor assembly box 80.
- the claw 51 and the claw 53 to be locked to the foot plate 60 are formed, and the capacitor assembly box 80 and the foot plate 60 are provided with holes 83 for retaining the claw 51, 53. 3 is formed.
- the claw 51 is locked in the hole 83 of the capacitor assembly box 80, and the claw 53 is locked in the hole 63 of the foot plate 60. Therefore, in the electric motor 100 according to the present embodiment, as in the prior art, another part for installing the capacitor assembly box 80 on the mold stator 30 or another part for installing the foot plate 60 on the mold stator 30. Parts are unnecessary, and the operation of assembling these separate parts to the mold stator 30 can be omitted. As a result, it is possible to reduce the manufacturing cost and assembly man-hour of another part, and not only can further reduce the cost compared to the prior art, but also can reduce the volume of the manufactured part.
- the claws 51 and 53 according to the first embodiment of the present invention are formed in a bowl shape that protrudes from the outer peripheral surface of the fan cover 50 toward the radially outer side of the mold stator 30, and the tips of the claws 51 and 53 are formed.
- the part is formed with inclined surfaces 51a and 53a which are inclined so that the protruding amount on the bracket 90 side becomes smaller toward the tip.
- the mold stator 30 is formed with a foot plate attachment portion 32 for attaching the foot plate 60 to the mold stator 30, and the foot plate attachment portion 32 includes the mold stator 30.
- a plurality of pilot holes 21 for fastening screws are formed so as to be exposed from the outer peripheral surface.
- the mold stator 30 includes a foot plate attachment component 20 in which a plurality of screw fastening portions 25 each having a screw fastening pilot hole 21 are connected by a thin portion 22.
- the hole 21 is provided so as to be exposed from the outer peripheral surface of the mold stator 30.
- the mold stator 30 is formed with a box attachment portion 33 for attaching the capacitor assembly box 80 to the mold stator 30, and the box attachment portion 33 includes the mold stator 30.
- a plurality of pilot holes 34 for screw fastening are formed so as to be exposed from the outer peripheral surface, and a lead wire lead-out portion 8 is formed.
- the fan cover 50 is formed in a mortar shape that covers the cooling fan 41 and opens on the side facing the mold stator 30, and the claws 51, 53 are formed on the fan cover 50. It is provided at the outer peripheral edge of the opening 54 and is provided from the outer peripheral edge toward the radially outer side of the mold stator 30. With this configuration, a claw can be provided at the end of the opening 54 of the fan cover 50 (see the claw 53 in FIG. 3). Therefore, an undercut portion (a shape that cannot be released in the mold opening direction) does not occur in the fan cover 50, so that the fan cover molding die can be simplified and the manufacturing cost of the fan cover can be reduced.
- FIG. FIG. 4 is an exploded perspective view of the electric motor 100A according to the second embodiment of the present invention
- FIG. 5 is a cross-sectional view of the electric motor 100A shown in FIG.
- the first embodiment is configured such that the fan cover 50 is installed by locking the claw 51 to the capacitor assembly box 80 and locking the claw 53 to the foot plate 60.
- the fan cover 50A having the claw 53 is manufactured integrally with the capacitor assembly box 80A, and the fan cover 50A is installed by locking the claw 53 to the foot plate 60.
- the same reference numerals are given to the same parts as those in the first embodiment, and the description thereof is omitted, and only different parts will be described here.
- An electric motor 100A shown in FIG. 4 mainly includes a mold stator 30, a cooling fan 41, a fan cover 50A, a foot plate 60, a rotor assembly 70, a bracket 90, and a capacitor assembly box 80A. And a capacitor 81.
- the difference from the first embodiment is that a capacitor assembly box 80A and a fan cover 50A are used instead of the capacitor assembly box 80 and the fan cover 50.
- fan cover 50A In the fan cover 50A, the claw 51 of the first embodiment is omitted, and in the capacitor assembly box 80A, the hole 83 of the first embodiment is omitted.
- fan cover 50A is manufactured integrally with capacitor assembly box 80A.
- the foot plate 60 is fixed to the mold stator 30 using the screws 64, and then the capacitor assembly box 80A using the screws 82. Is assembled to the mold stator 30. At this time, the claw 53 of the fan cover 50 ⁇ / b> A is locked in the hole 63 of the foot plate 60. As a result, the fan cover 50 ⁇ / b> A is fixed to the mold stator 30.
- the fan cover 50A according to the second embodiment of the present invention includes the claw 53 that is integrally formed with the capacitor assembly box 80A and that is locked to the foot plate 60.
- 60 is formed with a hole 63 in which the claw 53 is engaged.
- the claw 53 is locked in the hole 63 of the foot plate 60. Therefore, in the electric motor 100A according to the second embodiment, the same effect as in the first embodiment can be obtained. Further, in the electric motor 100 according to the first embodiment, the fan cover 50 and the capacitor assembly box 80 need to be separately assembled to the mold stator 30. However, in the electric motor 100A according to the second embodiment, the fan cover 50 Since 50A and capacitor assembly box 80A are integrally formed, it is not necessary to assemble them separately, and the number of assembly steps can be reduced as compared with the first embodiment.
- the electric motor, the pump, and the method for manufacturing the electric motor according to the embodiment of the present invention show an example of the content of the present invention, and can be combined with another known technique. Of course, it is possible to change and configure a part of the invention without departing from the gist of the invention.
- the present invention can be applied to electric motors and pumps, and is particularly useful as an invention capable of further improving quality.
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Abstract
Description
図1は、本発明の実施の形態1,2にかかる固定子1の斜視図であり、図2は、本発明の実施の形態1にかかる電動機100の分解斜視図であり、図3は、図2に示される電動機100の断面図である。
(1)ステップ1:まず、固定子1が製造されると共に、回転子組立70、ブラケット90、足板60、冷却ファン41、ファンカバー50、コンデンサ組付け箱80、およびアース線66が製造される。
(2)ステップ2:製造された固定子1と足板取付け部品20とをモールド成形してモールド固定子30が作られる。
(3)ステップ3:足板取付け部品20に設けられた下穴21の一つが固定子鉄心3に達するまで掘り下げ加工される。
(4)ステップ4:次に、スプリングワッシャ40、回転子組立70、ブラケット90、ネジ93の順でこれらの部品がモールド固定子30に組付けられる。
(5)ステップ5:また、冷却ファン41がモールド固定子30に組付けられ、モールド固定子30から突出したシャフト74にCリング42が組付けられる。
(6)ステップ6:モールド固定子30に、足板60とコンデンサ組付け箱80とが組付けられる。このとき、ネジ64によってアース線66が組付けられる。
(7)ステップ7:そして、ファンカバー50に設けられた爪51がコンデンサ組付け箱80の穴83に係止され、かつ、ファンカバー50に設けられた爪53が足板60の穴63に係止される。このことにより、ファンカバー50がモールド固定子30に固定される。
(8)ステップ8:最後に、コンデンサ組付け箱80の内部に引き出されたリード線7をコンデンサ81に接続することにより、電動機100が完成する。
図4は、本発明の実施の形態2にかかる電動機100Aの分解斜視図であり、図5は、図4に示される電動機100Aの断面図である。実施の形態1は、爪51をコンデンサ組付け箱80に係止させ、かつ、爪53を足板60に係止させることでファンカバー50が設置されるように構成されていた。実施の形態2は、爪53を有するファンカバー50Aがコンデンサ組付け箱80Aと一体的に製造され、爪53を足板60に係止させることでファンカバー50Aが設置されるように構成されている。以下、実施の形態1と同一部分には同一符号を付してその説明を省略し、ここでは異なる部分についてのみ述べる。
Claims (9)
- 回転子が内包され、固定子を熱硬化性樹脂でモールド成形したモールド固定子と、
前記モールド固定子の一端面から突出する回転子軸の端部に組付けられる冷却ファンと、
前記冷却ファンを覆うファンカバーと、
前記モールド固定子に設置されると共にコンデンサが組み込まれるコンデンサ組付け箱と、
前記モールド固定子に設置される足板と、
前記モールド固定子の他端側に設けられるブラケットと、
を備え、
前記ファンカバーには、前記コンデンサ組付箱に係止される爪と前記足板に係止される爪とが形成され、
前記コンデンサ組付け箱および前記足板には、前記各爪が係り止めされる穴が形成されていることを特徴とする電動機。 - 回転子が内包され、固定子を熱硬化性樹脂でモールド成形したモールド固定子と、
前記モールド固定子の一端面から突出する回転子軸の端部に組付けられる冷却ファンと、
前記冷却ファンを覆うファンカバーと、
前記モールド固定子に設置されると共にコンデンサが組み込まれるコンデンサ組付け箱と、
前記モールド固定子に設置される足板と、
前記モールド固定子の他端側に設けられるブラケットと、
を備え、
前記ファンカバーは、前記コンデンサ組付け箱と一体的に形成され、かつ、前記足板に係止される爪を有し、
前記足板には、前記爪が係り止めされる穴が形成されていることを特徴とする電動機。 - 前記爪は、前記ファンカバーの外周面から前記モールド固定子の径方向外側に向かって突となる鉤状に形成され、
前記爪の先端部には、前記ブラケット側の突出量が先端に向かうにつれて小さくなるように傾斜する傾斜面が形成されていることを特徴とする請求項1または2に記載の電動機。 - 前記モールド固定子には、前記足板を前記モールド固定子に取付ける足板取付け部が形成され、
前記足板取付け部には、前記モールド固定子の外周面から表出するようにネジ締結用の複数の下穴が形成されていることを特徴とする請求項1または2に記載の電動機。 - 前記モールド固定子は、ネジ締結用の下穴を有する複数のネジ締結部が薄肉部で連結されて成る足板取付け部品を備え、
前記下穴は、モールド固定子の外周面から表出するように設けられていることを特徴とする請求項1または2に記載の電動機。 - 前記モールド固定子には、前記コンデンサ組付け箱を前記モールド固定子に取付けるコンデンサ組付け箱取付け部が形成され、
前記コンデンサ組付け箱取付け部には、前記モールド固定子の外周面から表出するようにネジ締結用の複数の下穴が形成されると共に、リード線口出し部が形成されることを特徴とする請求項1または2に記載の電動機。 - 前記ファンカバーは、前記冷却ファンを覆い、かつ、前記モールド固定子と対向する側が開口するすり鉢状に形成され、
前記爪は、前記ファンカバーの開口部の外周縁に設けられ、かつ、この外周縁から前記モールド固定子の径方向外側に向かって設けられていることを特徴とする請求項1または2に記載の電動機。 - 請求項1~7の何れか1つに記載の電動機を搭載したことを特徴とするポンプ。
- 固定子をモールド成形してモールド固定子を製造するステップと、
前記モールド固定子に、回転子組立、ブラケット、足板、およびコンデンサ組付け箱を組付けるステップと、
ファンカバーに設けられた爪を前記足板および前記コンデンサ組付け箱に係止させて電動機を製造するステップと、
を含むことを特徴とする電動機の製造方法。
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PCT/JP2012/076041 WO2014054184A1 (ja) | 2012-10-05 | 2012-10-05 | 電動機、ポンプ、および電動機の製造方法 |
US14/432,594 US9966814B2 (en) | 2012-10-05 | 2012-10-05 | Motor having a fan cover that is latched to a foot plate, pump, and method for manufacturing the motor |
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US9973060B2 (en) * | 2012-12-28 | 2018-05-15 | Mitsubishi Electric Corporation | Motor, pump, and method for manufacturing motor |
JP6071778B2 (ja) * | 2013-06-27 | 2017-02-01 | 株式会社東芝 | 車両用電動機及び鉄道車両 |
USD835581S1 (en) * | 2016-05-26 | 2018-12-11 | J. Rhett Mayor | Electric motor terminal |
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JP2000358343A (ja) * | 1999-06-10 | 2000-12-26 | Mitsubishi Electric Corp | 電動機装置 |
JP2007082362A (ja) * | 2005-09-16 | 2007-03-29 | Hitachi Industrial Equipment Systems Co Ltd | 回転電機 |
WO2008136061A1 (ja) * | 2007-04-19 | 2008-11-13 | Mitsubishi Electric Corporation | 電動機及びポンプ及び電動機の製造方法 |
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JPH05300699A (ja) | 1992-02-19 | 1993-11-12 | Fuji Electric Co Ltd | 外扇形レジンモールドモータ |
JP5173668B2 (ja) * | 2008-08-18 | 2013-04-03 | 株式会社ミツバ | 減速機構付モータ |
CN103546013A (zh) * | 2010-06-11 | 2014-01-29 | 日本电产伺服有限公司 | 旋转电机 |
JP5213921B2 (ja) | 2010-07-08 | 2013-06-19 | 中国電力株式会社 | 電動機用ファンカバー |
DE102011006893A1 (de) * | 2011-04-06 | 2012-10-11 | Aurora Konrad G. Schulz Gmbh & Co. Kg | Bürstenloser Elektromotor |
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JP2000358343A (ja) * | 1999-06-10 | 2000-12-26 | Mitsubishi Electric Corp | 電動機装置 |
JP2007082362A (ja) * | 2005-09-16 | 2007-03-29 | Hitachi Industrial Equipment Systems Co Ltd | 回転電機 |
WO2008136061A1 (ja) * | 2007-04-19 | 2008-11-13 | Mitsubishi Electric Corporation | 電動機及びポンプ及び電動機の製造方法 |
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