JP6002941B2 - Stator and electric motor using it - Google Patents

Stator and electric motor using it Download PDF

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Publication number
JP6002941B2
JP6002941B2 JP2015544237A JP2015544237A JP6002941B2 JP 6002941 B2 JP6002941 B2 JP 6002941B2 JP 2015544237 A JP2015544237 A JP 2015544237A JP 2015544237 A JP2015544237 A JP 2015544237A JP 6002941 B2 JP6002941 B2 JP 6002941B2
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Prior art keywords
insulator
stator
core
insulating
winding
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JP2015544237A
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JPWO2015162916A1 (en
Inventor
満 柴田
満 柴田
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パナソニックIpマネジメント株式会社
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Priority to JP2014089756 priority
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Priority to PCT/JP2015/002182 priority patent/WO2015162916A1/en
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    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02KDYNAMO-ELECTRIC MACHINES
    • H02K1/00Details of the magnetic circuit
    • H02K1/06Details of the magnetic circuit characterised by the shape, form or construction
    • H02K1/12Stationary parts of the magnetic circuit
    • H02K1/18Means for mounting or fastening magnetic stationary parts on to, or to, the stator structures
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02KDYNAMO-ELECTRIC MACHINES
    • H02K15/00Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines
    • H02K15/02Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines of stator or rotor bodies
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02KDYNAMO-ELECTRIC MACHINES
    • H02K15/00Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines
    • H02K15/08Forming windings by laying conductors into or around core parts
    • H02K15/095Forming windings by laying conductors into or around core parts by laying conductors around salient poles
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02KDYNAMO-ELECTRIC MACHINES
    • H02K3/00Details of windings
    • H02K3/32Windings characterised by the shape, form or construction of the insulation
    • H02K3/34Windings characterised by the shape, form or construction of the insulation between conductors or between conductor and core, e.g. slot insulation
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02KDYNAMO-ELECTRIC MACHINES
    • H02K3/00Details of windings
    • H02K3/46Fastening of windings on the stator or rotor structure

Description

  The present invention relates to an induction motor stator mainly used for a ventilation fan and an electric motor using the same.
  Among induction motors used for ventilation fans, especially in induction transmitters with a stator with a small number of slots, the outer periphery of the winding space, that is, the opening of the winding, is hindered and narrowed by the outer core. Therefore, winding cannot be performed easily. For this reason, it is generally known that a former is dropped into a winding space from an opening by using a former.
  In recent years, it has a winding frame made of an insulator, and the length of the outer wall of the winding frame is made shorter than the inner wall to widen the opening of the winding, and the winding is wound around the stator core via the winding frame. After that, a structure is known in which the winding space is utilized up to the curved portion of the outer peripheral portion by covering the portion that protrudes into the winding opening portion with an insulating member (see, for example, Patent Document 1).
  However, in such a conventional electric motor, the stator iron core has a ring-shaped outer ring yoke portion, and the insulating member is made of an integrally molded product of insulating resin. After winding the stator iron core via a winding frame, Thus, since the insulating member is inserted into the stator core from above and below, the rigidity of the insulating member is required, which increases the thickness of the insulating member and narrows the winding space.
JP 2007-215263 A
  As described above, the conventional electric motor has a problem that the winding space is narrowed.
  The stator according to the present invention is formed in an annular shape by a plurality of divided core bodies having tooth portions and the same number of the divided core bodies and the connecting divided core bodies sandwiched between the divided core bodies. Equipped with a stator core. In addition, an upper insulator and a lower insulator that sandwich the split iron core body from the rotation axis direction, and windings wound around the upper insulator and the lower insulator are provided. Furthermore, by pressing a connection division | segmentation iron core from an outer peripheral direction, the insulating member hold | maintained between the upper insulator and the lower insulator, and the division | segmentation iron core for connection is provided in the outer peripheral side of a coil | winding.
  According to the present invention, since the insulating member is pressed and clamped from the outer peripheral direction, the thickness necessary for inserting the insulating member from the vertical direction is not necessary, and the insulating member itself is pressed to the minimum thickness by pressing. Therefore, it is possible to minimize the space required for the insulation of the connecting split cores. As a result, the winding space can be expanded, and a small and high-performance motor can be provided.
  This electric motor is particularly effective when used in an air blower (ventilation air blower) that is small and requires high performance.
  Furthermore, when winding is performed, there is no connecting split core, and the winding opening can be enlarged, so that the winding work can be performed easily.
FIG. 1 is a partially cutaway perspective view of an electric motor using a stator according to a first embodiment of the present invention. FIG. 2 is an exploded perspective view of the stator according to the first embodiment of the present invention. FIG. 3 is an exploded perspective view of the stator according to the first embodiment before winding the stator. FIG. 4 is a main part configuration diagram of the stator according to the first embodiment of the present invention. FIG. 5 is a perspective view of the stator according to the second embodiment of the present invention.
  Hereinafter, a stator in one embodiment of the present invention will be described with reference to the drawings.
(First embodiment)
As shown in FIG. 1, the electric motor 1 according to the present embodiment includes a stator 2, a rotor 3 provided inside the stator 2, an upper cover 4 and a lower cover 5 provided outside the stator 2, and the stator 2. And a terminal block 6 provided between the upper cover 4 and the upper cover 4. In the electric motor 1, the rotor 3 rotates by energizing the stator 2 from the external power source through the terminal block 6. As shown in FIG. 2, in the present embodiment, the stator 2 includes a stator core 7, an upper insulator 10, a lower insulator 11, a winding 12 and an insulating member 13, and the lower insulator 11 has a temporary insulating member temporary. A placing portion 14 is provided. The insulating member temporary placement portion 14 is provided on the outer peripheral side of the lower insulator 11 and has a groove between the lower insulator 11 main body and the insulating member temporary placement portion 14. An insulating member 13 to be described later is inserted into this groove and temporarily placed.
  The stator core 7 is configured to be divided into a total of eight pieces, including four divided core bodies 8 and four connecting divided core bodies 9 sandwiched by the divided core bodies 8. That is, the stator core 7 is configured by alternately connecting the divided core bodies 8 and the connecting divided core bodies 9 in an annular shape.
  Moreover, the split iron core body 8 has a tooth portion protruding to the inner peripheral side. As will be described later, the winding 12 is wound around the tooth portion via the upper insulator 10 and the lower insulator 11.
  Next, a method for manufacturing the stator 2 will be described.
  First, as shown in FIG. 3, the split iron core body 8 is sandwiched from above and below by the upper insulator 10 and the lower insulator 11 with the split iron core bodies 8 arranged in a ring shape.
  After being sandwiched, the winding 12 is continuously applied for each phase.
  After the winding 12 is applied, the insulating member 13 is temporarily held by the insulating member temporary placement portion 14 of the lower insulator 11 on the outer peripheral side of the winding 12. And the division | segmentation iron core body 8 and the division | segmentation iron core body 9 for a connection are fixed by welding, pressing the insulating member 13 from the outer peripheral direction with the division | segmentation iron core body 9 for a connection. In this way, the insulating member 13 is sandwiched between the upper insulator 10 and the lower insulator 11 and the connecting split core body 9.
  According to the stator 2 of this embodiment, since the insulating member 13 is pressed and clamped from the outer peripheral direction, the insulating member 13 is insulated as shown in FIG. The member 13 can be thinned.
  In addition, when the insulating member 13 is inserted from above and below, it is necessary to provide sufficient clearance to avoid friction due to contact with the winding, and the winding space becomes narrow. In the configuration of 2, the clearance is not required, and a wide winding space can be taken.
  Further, the stator core 7 is divided into a split core body 8 and a split core body 9 for connection sandwiched between the split core bodies 8, and the split split core body 9 is mounted from the outer peripheral direction after the winding 12 is applied. By doing so, the opening part of the coil | winding 12 can be expanded and the operation | work which winds the coil | winding 12 can also be performed easily.
  As described above, according to the stator 2 in the present embodiment, the space required for the insulation of the connecting split core body 9 can be minimized, and the winding space can be expanded. It is possible to provide a motor and a blower with good performance.
  Furthermore, since the opening for winding the winding 12 can be enlarged, the operation of winding the winding 12 can be easily performed.
  Here, as a result of wide winding space, if the winding thickness is reduced, the stator and the electric motor using the stator are reduced in size. If the winding thickness is the same, the number of windings is increased and a motor with good performance is obtained. can get.
  Further, in this embodiment, the insulating member 13 is held by the lower insulator 11. However, the upper insulator 10 has a function, for example, a convex portion is provided on both upper sides of the insulating member 13, and the upper insulator 10 is provided. The same effect can be obtained even in the case where the protruding portion is hooked on the insulating member temporary placement portion 14 to temporarily place it.
  In the present embodiment, the description has been given by the configuration of the four divided core bodies 8 and the four divided core bodies 9 for connection. However, the divided core bodies 8 and the divided core bodies 9 for connection are alternately provided in an annular shape. If it is the structure which is made, the division | segmentation iron core body 8 and the division | segmentation iron core body 9 for connection are not limited to four pieces.
(Second Embodiment)
As shown in FIG. 5, the stator core 7 a constituting the stator 2 a according to the present embodiment has four split cores 8 and four connecting split cores 9 sandwiched between the split cores 8. It is the structure divided | segmented into a total of eight. Further, the insulator 15 is integrally formed on the divided core body 8 to manufacture the iron core body 16. After the insulating member 13 is held by the insulator 15, the connecting divided core body 9 is pressed from the outer peripheral direction. Thus, the insulating member 13 is sandwiched between the insulator 15 and the connecting split core body 9 .
  According to the stator 2a of the present invention, since the strength of the insulator 15 can be increased, the insulating member 13 can be held with a thinner thickness than that of the first embodiment. Therefore, since a wider winding space can be secured, it is possible to provide an electric motor and a blower that are even smaller and have better performance.
  In the present embodiment, as in the first embodiment, the description has been given by the configuration of the four divided core bodies 8 and the four divided core bodies 9 for connection. However, the divided core body 8 and the divided core core for connection are described. As long as the bodies 9 are alternately provided in a ring shape, the divided core bodies 8 and the connecting divided core bodies 9 are not limited to four.
  As described above, the stator core constituting the stator includes a plurality of split core bodies and the same number of connecting split core bodies as the split core bodies sandwiched between the split core bodies, and an insulator is provided on the split core bodies. Winding is applied continuously for each phase sandwiched from above and below. After that, after the insulating member is held by the insulator, the insulating member is sandwiched between the insulator and the connecting split core by pressing the connecting split iron core from the outer peripheral direction.
  With this configuration, since the insulating member is pressed and clamped from the outer peripheral direction, there is no need for clearance with other members that are required when the insulating member is inserted from the vertical direction. Further, there is no need to consider the dimensional variation in manufacturing the insulating member itself. Furthermore, since the insulating member itself can be compressed to the minimum necessary thickness by being pressed by the connecting divided core body, the space necessary for insulating the connecting divided core body can be minimized. As a result, the winding space and the winding opening can be enlarged.
  Further, according to this configuration, when the winding is wound, neither the insulating member nor the connecting split core is provided on the outer peripheral side of the insulator. In addition, the connecting split iron core is pressed and clamped from the outer peripheral direction. Therefore, there is no need for clearance with other members that are necessary when the insulating member is inserted from above and below. Further, there is no need to consider the dimensional variation in manufacturing the insulating member itself. Furthermore, since the insulating member itself can be compressed to the minimum necessary thickness by being pressed by the connecting divided core body, the space necessary for insulation between the winding and the connecting divided core body can be minimized. As a result, it is possible to increase the winding space and the winding opening.
  Further, the core body may be manufactured by integrally molding the split core body with the insulator, the strength of the insulator can be increased, and the insulator can be made thinner, so that a wider winding space can be provided. It has the effect that it can be secured.
  As described above, the electric motor and the air blower using the stator according to the present invention are small size, high efficiency, high output, which is an electric device that is required to realize a ventilation fan, an air conditioner, an air cleaner, an air conditioner. It is useful to install in a machine, dehumidifier, humidifier, etc.
DESCRIPTION OF SYMBOLS 1 Electric motor 2, 2a Stator 3 Rotor 4 Upper cover 5 Lower cover 6 Terminal block 7, 7a Stator core 8 Split iron core body 9 Split iron core body 10 Upper insulator 11 Lower insulator 12 Winding 13 Insulation member 14 Insulation Temporary member placement part 15 Insulator 16 Iron core

Claims (4)

  1. A plurality of split cores having tooth portions, the same number as the split cores, and a stator core configured in a ring shape with connecting split cores sandwiched between the split cores; and An upper insulator and a lower insulator; a winding wound around the upper insulator and the lower insulator; and an insulating member.
    After the upper insulator and the lower insulator are sandwiched from above and below the divided iron core from above and below and continuously wound for each phase, after the insulating member is held by the upper insulator or the lower insulator A stator in which the insulating member is sandwiched between the upper and lower insulators and the connecting split core by pressing the connecting split core from the outer peripheral direction.
  2. A plurality of split cores having tooth portions, the same number as the split cores, and a stator core configured in a ring shape with connecting split cores sandwiched between the split cores; and A winding wound around the insulator and an insulating member;
    After the winding is continuously applied to each of the divided iron cores for each phase, the insulating member is held by the insulator, and then the connecting divided iron cores are pressed from the outer peripheral direction to thereby obtain the insulation. The stator which clamped the member between the said insulator and the said division | segmentation iron core for a connection.
  3. A plurality of split cores having tooth portions, the same number as the split cores, and a stator core configured in a ring shape with connecting split cores sandwiched between the split cores; and
    An upper insulator and a lower insulator that sandwich the split core from the direction of the rotation axis;
    Windings wound around the upper insulator and the lower insulator;
    The stator provided with the insulating member hold | maintained between the said upper side insulator and the said lower side insulator, and the said division | segmentation iron core body in the outer peripheral side of the said coil | winding.
  4. The electric motor using the stator as described in any one of Claims 1-3.
JP2015544237A 2014-04-24 2015-04-22 Stator and electric motor using it Active JP6002941B2 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
JP2014089756 2014-04-24
JP2014089756 2014-04-24
PCT/JP2015/002182 WO2015162916A1 (en) 2014-04-24 2015-04-22 Stator and electric motor in which same is used

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JP6002941B2 true JP6002941B2 (en) 2016-10-05
JPWO2015162916A1 JPWO2015162916A1 (en) 2017-04-13

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CN (1) CN105210269B (en)
WO (1) WO2015162916A1 (en)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH09191588A (en) * 1995-11-02 1997-07-22 Mitsubishi Electric Corp Rotating electric apparatus
JP2005012861A (en) * 2003-06-16 2005-01-13 Honda Motor Co Ltd Stator
JP2007014088A (en) * 2005-06-29 2007-01-18 Mitsubishi Electric Corp Stator for dynamo-electric machine, dynamo-electric machine, and method of manufacturing stator for dynamo-electric machine
JP2014014196A (en) * 2010-12-29 2014-01-23 Nippon Densan Corp Armature, insulator, and motor

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61207157A (en) * 1985-03-09 1986-09-13 Asmo Co Ltd Stator of motor
GB2172444B (en) * 1985-03-09 1988-08-17 Asmo Co Ltd Stator for an electric motor
JPH11341717A (en) * 1998-05-28 1999-12-10 Matsushita Seiko Co Ltd Stator of motor and its manufacture
WO2002084842A1 (en) * 2001-04-13 2002-10-24 Matsushita Ecology Systems Co., Ltd. Stator for inner rotor motors and method of producing the same
JP3621894B2 (en) * 2001-04-13 2005-02-16 松下エコシステムズ株式会社 Stabilizer for internal motor
JP3538422B2 (en) * 2003-09-17 2004-06-14 松下エコシステムズ株式会社 Stator of adduction motor and method of manufacturing the same
CN102377256B (en) * 2010-08-04 2015-11-25 广东松下环境系统有限公司 The stator of motor, motor and air-supply arrangement

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH09191588A (en) * 1995-11-02 1997-07-22 Mitsubishi Electric Corp Rotating electric apparatus
JP2005012861A (en) * 2003-06-16 2005-01-13 Honda Motor Co Ltd Stator
JP2007014088A (en) * 2005-06-29 2007-01-18 Mitsubishi Electric Corp Stator for dynamo-electric machine, dynamo-electric machine, and method of manufacturing stator for dynamo-electric machine
JP2014014196A (en) * 2010-12-29 2014-01-23 Nippon Densan Corp Armature, insulator, and motor

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Publication number Publication date
CN105210269A (en) 2015-12-30
WO2015162916A1 (en) 2015-10-29
CN105210269B (en) 2017-12-12
JPWO2015162916A1 (en) 2017-04-13

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