CN1077342C - Electric blower and its mfg. method - Google Patents
Electric blower and its mfg. method Download PDFInfo
- Publication number
- CN1077342C CN1077342C CN96105647A CN96105647A CN1077342C CN 1077342 C CN1077342 C CN 1077342C CN 96105647 A CN96105647 A CN 96105647A CN 96105647 A CN96105647 A CN 96105647A CN 1077342 C CN1077342 C CN 1077342C
- Authority
- CN
- China
- Prior art keywords
- pole piece
- magnetic pole
- mentioned
- stator
- wall section
- 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.)
- Expired - Fee Related
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Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K15/00—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines
- H02K15/02—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines of stator or rotor bodies
- H02K15/024—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines of stator or rotor bodies with slots
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K1/00—Details of the magnetic circuit
- H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
- H02K1/12—Stationary parts of the magnetic circuit
- H02K1/18—Means for mounting or fastening magnetic stationary parts on to, or to, the stator structures
- H02K1/185—Means for mounting or fastening magnetic stationary parts on to, or to, the stator structures to outer stators
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K15/00—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines
- H02K15/08—Forming windings by laying conductors into or around core parts
- H02K15/095—Forming windings by laying conductors into or around core parts by laying conductors around salient poles
-
- 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
- H02K5/225—Terminal boxes or connection arrangements
Abstract
The present invention relates to magnetic materials. After a plurality of connected stator cores are laminated to be applied an insulation processing thereto by a resin integral molding and coating, stator windings are wound around magnetic poles. The integrally molded connected stator core is supported in the state of tensions being applied to both its ends and the nozzle of a winding machine is turned around the magnetic poles to form regular windings in the stator windings. After the windings are completed, pressing a cylindrical jig in contact with the surfaces to be opposed to the rotor of the blower, thin-walled portions of the integrally molded connected core are bent respectively to form it into its desired shape.
Description
The present invention relates to be used for the electric blower of electric dust collector, relate in particular to stator structure and manufacture method thereof.
Figure 11 is the special vertical view of opening the state before the stator winding in the disclosed existing electric blower in the flat 3-190542 communique of expression, and Figure 12 is its profile.Figure 13 is the state vertical view behind the expression stator winding, and Figure 14 is its end view.
1 is stator, the 2nd among the figure, and electromagnetic steel plate etc. is piled up the stator core, the 3rd of formation, with the stator winding of coileds such as enamelled wire, twine near the grooving portions 5 that form the utmost point portion 4 that is stator core.The 6th, make the stator insulation portion of insulating between stator core 2 and the stator winding 3, it begins to be covered with grooving inner surface portion 8 from the grooving periphery 7 of stator core 2 usually.
Figure 15 is the vertical view of expression with automatic coil winding machine state in the stator core 2 of electric blower time the with stator winding 3, and Figure 16 is its end view.9 is a pair of retainers, the 10th among the figure, the type tool bobbin of using during coiling, the 11st, coiling pin.To be expression with rotor 12 be installed on the stator 1 of electric blower Figure 17 and profile, Figure 18 of being assembled in the state in the electric blower is located at front view, the 1st in the framework with stator, stator, the 3rd, and stator winding, the 12nd, rotor, the 13rd, framework, 13a are perimeter surface in the framework, the 14th, bearing bracket stand, the 15th, fan, the 16th, fan guard, the 26th, rotating shaft.
There is certain thickness in the stator insulation portion 6 of the stator 1 of above-mentioned this electric blower, so that make the stable insulation of maintenance between stator core 2 and the stator winding 3, begin to improve its insulating properties thus from the grooving periphery 7 that on the end face of stator core 2, contacts up to the whole covering of grooving inner surface portion 8 usefulness insulants with stator winding 3.
In the stator 1 of this electric blower, stator winding 3 in stator core 2 time, is used automatic coil winding machine usually.During coiling, at first the side of stator core 2 is fixed, as shown in figure 16, retainer 9 is inserted near the utmost point portion 4 of both ends of the surface of stator cores 1.Link with interior all sides of bobbin 10 insertion stator cores 2 and with retainer 9 then, bobbin 10 is fastened to retainer 9 one laybacks respectively.Then, shown in Fig. 15, pin 11 moves to penetrating direction.Stator core 2 is wound the line.
Why wind the line like this, be because for the end winding of stator winding 3 in the mode of broadening on the end face grooving periphery 7 of stator core 2, can not push down with the stator insulation portion 6 of fixed tool the end face of stator core 2.
As shown in figure 18, between the end winding of existing framework inner peripheral surface 13a and stator winding 3, almost do not have space length, be difficult to terminal disc 23 is located on the 6a of stator insulation portion at magnetic pole piece end face 17a place.
Coiling is pulled out retainer 9, thereby form space part between stator core 2 and stator winding 3 after finishing.
The stator of existing electric blower as above constitutes, so after stator winding 3 coilings finish, retainer 9 must be extracted between stator core 2 and stator coil 3, but for retainer 9 is extracted, need with very big power, so very the trouble, and if pull out retainer 9 firmly outward, might damage stator winding 3.After retainer 9 extracted, form space part between stator core 2 and stator winding 3, therefore the use amount of coiling increases, and it is big that the resistance of winding becomes, and becomes the main cause of decrease in efficiency.
Winding coil is neatly flat to be wound with and to help make the coil shape miniaturization, improves characteristic, improves reliability, but because the space of retainer 9 and stator core 2 is extremely narrow, thus can not realize neat flat around.In addition, can not keep tension continuously during coiling, this also be impossible neat flat around reason.
In addition, as shown in Figure 7, between the end winding of existing framework inner peripheral surface 13a and stator winding 3, almost do not have space length, be difficult to terminal disc 23 is located on the 6a of stator insulation portion at 17a place, magnetic pole piece end.
Both, it is big that the end winding on the grooving periphery becomes, and stator winding might touch yoke portion during coiling, and end winding forms resistance to the wind path of electric blower simultaneously, can reduce the efficient of electric blower.
The present invention studies successful in order to solve above-mentioned problem, the electric blower that purpose is to obtain a kind ofly to wind the line in the stator core 2 easily, winding can not become flexible, end winding is little.
Electric blower of the present invention has the stator that is made of stator core and stator winding, and this stator core forms with magnetic material is overlapping; It has magnetic pole piece and yoke portion; Be provided with the thinner wall section that links above-mentioned magnetic pole piece and yoke portion; And form annular stator core by crooked above-mentioned thinner wall section, this stator winding is fitly to be wrapped on the above-mentioned magnetic pole piece.
On magnetic pole piece, be provided with the binding post portion that is connected with outside power feeding section.
A kind of manufacture method of electric blower, it is characterized in that: the yoke portion of ining succession the magnetic pole piece with arc sections relative with rotor with by thinner wall section and above-mentioned magnetic pole piece is as a slice of launching, when magnetic material is die-cut, in the banded magnetic material, under the arc sections that makes a plurality of above-mentioned sides and the yoke portion of the opposite side relative mutually state, the thinner wall section of each end by being arranged on above-mentioned arc sections, make each end die-cut magnetic material under the state of above-mentioned magnetic pole piece bending of above-mentioned arc sections, make the thinner wall section of the above-mentioned arc sections after die-cut crooked to the inside, by the integrally formed insulation processing of carrying out magnetic pole piece of resin, stator winding fitly is wrapped on the above-mentioned magnetic pole piece, after the coiling the above-mentioned thinner wall section bending adjacent with magnetic pole piece is formed ring-type.
In addition, the manufacture method of electric blower is, punch out stator core and rotor with magnetic material completely, this stator core in the form of a ring, it has towards rotor and can dispose the magnetic pole piece of stator winding, be located at the yoke portion between the above-mentioned magnetic pole piece, and the thinner wall section that links above-mentioned magnetic pole piece and yoke portion, then, with above-mentioned thinner wall section bending, make above-mentioned magnetic pole piece be launched into the state that linearity is connected with yoke portion, integrally formed by resin, carry out the insulation processing of above-mentioned magnetic pole piece, with stator winding fitly on above-mentioned magnetic pole piece, with above-mentioned thinner wall section bending, make above-mentioned magnetic pole piece and rotor opposed after the coiling.
Fig. 1 is the front view of the stator of embodiments of the invention 1.
Fig. 2 is the end view of the stator of embodiments of the invention 1.
Fig. 3 is the schematic diagram of neat winding of the stator winding of embodiments of the invention 1.
Fig. 4 is the front view of case of bending of the stator of expression embodiments of the invention 1.
Fig. 5 is the local oblique view of the stator of embodiments of the invention 2.
Fig. 6 is the figure that the state in the framework is inserted the stator of embodiments of the invention 2 in expression.
Fig. 7 is the figure of expression to the die-cut state of the stator core of embodiments of the invention 3.
Fig. 8 is the figure of expression to the die-cut state of the stator core of embodiments of the invention 3.
Fig. 9 is expression to the front view of the die-cut state of the stator core of embodiments of the invention 4 and rotor.
Figure 10 is the front view of expression with the state of the rotor core expansion of embodiments of the invention 4.
Figure 11 is the front view of existing stator.
Figure 12 is the end view of existing stator.
Figure 13 is the front view behind the existing stator winding.
Figure 14 is the end view behind the existing stator winding.
Figure 15 is the front view of expression when with automatic coil winding machine existing stator being wound the line.
Figure 16 is the end view of expression when with automatic coil winding machine existing stator being wound the line.
Figure 17 is that expression will have pack into the profile of the state behind the electric blower of stator now.
Figure 18 is that expression will have the front view in the stator insertion framework now.
Below utilize Fig. 1～Fig. 4 that embodiments of the invention 1 are described.
Fig. 1 is the front view of stator of expression embodiment 1, is the stator after neatly being wrapped on the magnetic pole piece of stator core after adopting method such as the integrally formed and japanning of resin to carry out insulation processing, with stator winding.Fig. 2 is its end view.The figure of Fig. 3 state that to be expression wind the line to the magnetic pole piece of stator core with stator winder, Fig. 4 is the figure of the bending state of expression stator.2 is stator cores, the 3rd among the figure, and stator winding, 6a are the insulation divisions, the 17th of stator, magnetic pole piece, the 18th, and coil winding machine mouth, the 19th, type tool, the 20th, thinner wall section, the 21st, the yoke portion that links by magnetic pole piece 17 and thinner wall section 20, it is located between the magnetic pole piece 17, forms flux circuit.
Secondly explanation coiling action.
The insulant of the insulation division 6a lining last layer ester moulding of the magnetic pole piece 17 of the stator core 2a that launches etc. carries out insulation processing.As shown in Figure 3, keep the two ends of the stator core 2a of linearly binding, coil winding machine mouth 18 is rotated around magnetic pole piece 17, stator winding 3 fitly is wrapped in stator core 2a goes up the formation winding.After the coiling, as shown in Figure 4, type tool 19 cylindraceous is abutted against on stator core 2a that linearity the links face relative with the rotor of electric blower,, be configured as desirable stator profile thinner wall section 20 bendings.
If adopt this embodiment 1, after stator core 2 being divided into magnetic pole piece and yoke portion, expansion, fitly be wound in stator winding, twine required space so can fully guarantee 18 rotations of coil winding machine mouth, can apply Necessary Tensility all the time and twine, so can fitly twine.Thereby can make end winding little, can fully guarantee insulation distance with yoke portion 21.
By reducing end winding, can reduce the amount of yoke portion 21 needed insulants, the insulant consumption of each can be reduced, and interior all aperture areas can be increased towards the yoke portion 21 of electric blower rotor portions.Consequently can improve the cooling effect of electric blower, and can reduce the windage loss of one of the loss of electric blower.
Owing to can fitly twine stator winding 3, compared with the past, stator winding 3 can reduce 30% approximately with the line amount, therefore can reduce copper loss and improve efficient.In addition, owing to can fitly twine, so can make the end winding of electric blower rotating shaft 26 (as shown in figure 18) direction little, with stator 1 accommodate be fixed in the framework 13 after, insert rotor 12, rotor 12 is installed on the bearing bracket stand 14 that is fixed on the framework 13, in this electric blower, can guarantee has bigger space length between neat stator winding 3 that twines and the above-mentioned bearing bracket stand 14, so air-supply efficient improves, windage loss etc. can be reduced, performance can be improved.
Fig. 5 is the local oblique view of the electric blower stator of embodiment 2, and Fig. 6 is the front view that expression is installed in stator shown in Figure 5 state on the framework of electric blower.
In Fig. 5, the 3rd, stator winding, 3a are that stator winding terminal part, 6a are insulation divisions, the 17th, magnetic pole piece, 17a are magnetic pole piece end faces, the 23rd, the terminal disc, 24th integrally formed with the 6a of stator insulation portion, binding post portion is a power supply terminal.
Method for winding is identical with the foregoing description 1, with stator winding 3 fitly on the magnetic pole piece 17 of stator core 2, stator winding initiating terminal and the end of a thread 3a that finishes to hold are connected on the power supply terminal 24, this power supply terminal 24 be located at the integrally formed terminal disc 23 of the 6a of stator insulation portion at magnetic pole piece end face 17a place on, be used for being connected with outside.The power supply terminal 24 that stator winding the end of a thread 3a passes through to be connected is connected with the power feeding section of outside.
In Fig. 6, the 12nd, rotor, the 13rd, framework, 13a are perimeter surface in the framework.As shown in the figure, therefore the space owing between the end winding that can guarantee interior perimeter surface 13a of framework and stator winding 3 can be provided with the terminal disc 23 integrally formed with the 6a of stator insulation portion of magnetic pole piece end face 17a.
If adopt embodiment 2, then owing to be provided with the integrally formed terminal disc 23 of the 6a of stator insulation portion with magnetic pole piece end face 17a place, so when carrying out Insulation Test after the coiling, only need be connected on electrode on the feeder terminal portion simply, just can test, thereby be easy to.
In addition, during coiling owing to stator winding initiating terminal and the end of a thread 3a that finishes end can be connected on the power supply terminal 24, this power supply terminal 24 be located at the integrally formed terminal disc 23 of the insulation division 6a of magnetic pole piece end on, be used for being connected, so the wrong line afterwards that can prevent to wind the line with outside.
Fig. 7, Fig. 8 are the figure of manufacture method of the electric blower of expression embodiment 3, are that to be illustrated in magnetic material be the figure of state that punches out the stator core of expansion on the electromagnetic steel plate.In Fig. 7, the 17th, magnetic pole piece, 17a are the arc sections towards rotor of magnetic pole piece.20a is a thinner wall section, and the part of arc sections 17a is crooked laterally by thinner wall section 20a.The 21st, yoke portion, the 27th, electromagnetic steel plate.
Configuration stator core 2a just makes the rotating direction of electromagnetic steel plate 27 and the flow direction quadrature of magnetic pole piece 17 like this.And a part that makes arc sections 17a is passed through thinner wall section 20a warpage laterally.
Method shown in Figure 8 is carried out die-cut method after to be rotating direction that the stator core 2a of linearly binding is configured to make magnetic material identical with the flow direction of magnetic pole piece 17 again.After die-cut, overlapping with the part of the arc sections 17a of magnetic pole piece 17 by after the thinner wall section 20a bending, utilize method such as welding that it is combined.
If adopt embodiment 3, then, can reduce die-cut leftover bits and pieces by punch out a plurality of stator core 2a completely, can utilize material efficiently, can effectively utilize the sheet material of magnetic material.
Utilize Fig. 9 and Figure 10 that the manufacturing method for stators of the electric blower of embodiment 4 is described.
Fig. 9 is the front view that does not launch die-cut stator core, and Figure 10 is the figure of expression with the state of stator core shown in Figure 9 die-cut back expansion.
12 is rotors, the 17th among the figure, magnetic pole piece, the 20th, and thinner wall section, the 21st, yoke portion, the 25th, separation developed surface, 25a are that cut-out portion, 25b are half cut parts.
Across the space of accommodating rotor 12 a pair of magnetic pole piece 17 in opposite directions is set, and respectively around last stator winding.Yoke portion 21 is located between two magnetic pole pieces 17, forms flux circuit.Yoke portion 21 utilizes thinner wall section 20 to interlink.
Supporting when die-cut with rotor 12, the yoke portion 21 of thinner wall section 20 and the developed surface 25 that separates of magnetic pole piece 17 are die-cut into yoke portion 21 and the 25a of cut-out portion of magnetic pole piece 17 cut-outs and the half cut part 25b of hemisection state, overlapping fixing after, former 17 of magnetic and yoke portion 21 are launched into a row from the developed surface 25 that separates of thinner wall section 20.Then, magnetic pole piece 17 is carried out insulation processing, fitly behind last winding, from separating the developed surface bending, magnetic pole piece 21 is arranged on the position relative with rotor 12, the seam of separating developed surface 25 of magnetic pole piece 17 and yoke portion 21 is joined together.
After overlapping the fixing, magnetic pole piece 17 is carried out insulation processing.Then with magnetic pole piece 17 and yoke portion 21 after the separating developed surface 25 and be launched into a row of thinner wall section 20, the neat winding of carrying out winding gets final product.
If adopt embodiment 4, as Fig. 8 and shown in Figure 9, when just launching at first, must rotor 12 is separately die-cut separately with stator 1, but since supporting die-cut with rotor 12, so can reduce blanker's ordinal number, can reduce leftover bits and pieces simultaneously, material can be utilized efficiently, magnetic material sheet material can be effectively utilized.
In addition, when at first just stator core being launched when die-cut, then yoke portion or magnetic pole piece always have among both a side and rotating direction inconsistent, but the magnetic characteristic of rotating direction along with the direction of rotating direction quadrature for well, if therefore adopt embodiment 4, because yoke portion is consistent with rotating direction with magnetic pole piece, therefore can make the magnetic direction unanimity, make characteristic better.
Claims (2)
1. the manufacture method of an electric blower, it is characterized in that: the yoke portion of ining succession the magnetic pole piece with arc sections relative with rotor with by thinner wall section and above-mentioned magnetic pole piece is as a slice of launching, when magnetic material is die-cut, in the banded magnetic material, under the arc sections that makes a plurality of above-mentioned sides and the yoke portion of the opposite side relative mutually state, the thinner wall section of each end by being arranged on above-mentioned arc sections, make each end die-cut magnetic material under the state of above-mentioned magnetic pole piece bending of above-mentioned arc sections, make the thinner wall section of the above-mentioned arc sections after die-cut crooked to the inside, by the integrally formed insulation processing of carrying out magnetic pole piece of resin, stator winding fitly is wrapped on the above-mentioned magnetic pole piece, after the coiling the above-mentioned thinner wall section bending adjacent with magnetic pole piece is formed ring-type.
2. the manufacture method of an electric blower, it is characterized in that: punch out stator core and rotor with magnetic material completely, this stator core in the form of a ring, it has towards rotor and can dispose the magnetic pole piece of stator winding, be located at the yoke portion between the above-mentioned magnetic pole piece, and the thinner wall section that links above-mentioned magnetic pole piece and yoke portion, then, with above-mentioned thinner wall section bending, above-mentioned magnetic pole piece is launched into the state that linearity is connected with yoke portion, integrally formed by resin, carry out the insulation processing of above-mentioned magnetic pole piece, fitly on above-mentioned magnetic pole piece, with above-mentioned thinner wall section bending, make above-mentioned magnetic pole piece and rotor opposed after the coiling stator winding.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP252902/95 | 1995-09-29 | ||
| JP252902/1995 | 1995-09-29 | ||
| JP7252902A JPH0998545A (en) | 1995-09-29 | 1995-09-29 | Motor-driven blower and its manufacture |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1147163A CN1147163A (en) | 1997-04-09 |
| CN1077342C true CN1077342C (en) | 2002-01-02 |
Family
ID=17243769
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN96105647A Expired - Fee Related CN1077342C (en) | 1995-09-29 | 1996-04-26 | Electric blower and its mfg. method |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JPH0998545A (en) |
| KR (1) | KR100233203B1 (en) |
| CN (1) | CN1077342C (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107408872A (en) * | 2015-03-16 | 2017-11-28 | 黑田精工株式会社 | The manufacture method of laminated iron core and the manufacture device of laminated iron core |
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| JPH1052006A (en) * | 1996-07-26 | 1998-02-20 | Mitsui High Tec Inc | Manufacture of laminated iron core |
| JPH10322943A (en) * | 1997-05-21 | 1998-12-04 | Shibaura Eng Works Co Ltd | Motor stator |
| JP3466425B2 (en) * | 1997-07-03 | 2003-11-10 | 三菱電機株式会社 | Stator |
| JPH11262201A (en) * | 1998-03-11 | 1999-09-24 | Shibaura Mechatronics Corp | Stator core of motor |
| JP4527213B2 (en) * | 1999-05-26 | 2010-08-18 | 黒田精工株式会社 | Method for manufacturing unit laminated body for annular laminated iron core |
| JP4021433B2 (en) * | 2004-08-30 | 2007-12-12 | 松下エコシステムズ株式会社 | Stator of adder motor |
| JP2005095000A (en) * | 2004-12-21 | 2005-04-07 | Matsushita Ecology Systems Co Ltd | Stator of inner rotary type dynamo-electric motor |
| JP2007318858A (en) * | 2006-05-24 | 2007-12-06 | Shinko Electric Co Ltd | Linear actuator, method for assembling stator of same, and actuator |
| WO2008072443A1 (en) * | 2006-12-13 | 2008-06-19 | Makita Corporation | Electric motor stator |
| JP5354888B2 (en) * | 2007-11-05 | 2013-11-27 | 株式会社ミツバ | Brushless motor |
| CN101552529B (en) * | 2008-04-02 | 2012-08-29 | 鸿富锦精密工业（深圳）有限公司 | Voice coil motor |
| CN101645641B (en) * | 2008-08-08 | 2012-09-05 | 鸿富锦精密工业（深圳）有限公司 | Actuator |
| JP5016650B2 (en) * | 2009-10-02 | 2012-09-05 | 黒田精工株式会社 | Method for manufacturing unit laminated body for annular laminated iron core |
| JP5641902B2 (en) * | 2010-10-08 | 2014-12-17 | 日本発條株式会社 | Motor stator core and manufacturing method |
| JP5938156B2 (en) * | 2011-07-08 | 2016-06-22 | 日本電産テクノモータ株式会社 | Stator core, motor including the stator core, and manufacturing method thereof |
| KR101587706B1 (en) * | 2014-02-10 | 2016-01-27 | 뉴모텍(주) | Laminated Stator Core with Split Yoke |
| CN109661759B (en) * | 2016-09-09 | 2020-11-20 | 三菱电机株式会社 | Stator of rotating electric machine and method for manufacturing stator of rotating electric machine |
| WO2018131205A1 (en) * | 2017-01-11 | 2018-07-19 | 三菱電機株式会社 | Rotating electric machine stator and rotating electric machine stator manufacturing method |
| WO2018198562A1 (en) * | 2017-04-27 | 2018-11-01 | 三菱電機株式会社 | Rotary electrical machine stator core, stator, rotary electrical machine, fluid pump, method for manufacturing rotary electrical machine stator core, and method for manufacturing stator |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1104810A (en) * | 1993-11-08 | 1995-07-05 | 三菱电机株式会社 | Rotating motor and method for making same, layered iron core and method for making same |
-
1995
- 1995-09-29 JP JP7252902A patent/JPH0998545A/en active Pending
-
1996
- 1996-04-17 KR KR1019960011532A patent/KR100233203B1/en not_active IP Right Cessation
- 1996-04-26 CN CN96105647A patent/CN1077342C/en not_active Expired - Fee Related
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1104810A (en) * | 1993-11-08 | 1995-07-05 | 三菱电机株式会社 | Rotating motor and method for making same, layered iron core and method for making same |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107408872A (en) * | 2015-03-16 | 2017-11-28 | 黑田精工株式会社 | The manufacture method of laminated iron core and the manufacture device of laminated iron core |
| CN107408872B (en) * | 2015-03-16 | 2019-07-26 | 黑田精工株式会社 | The manufacturing method of laminated iron core and the manufacturing device of laminated iron core |
Also Published As
| Publication number | Publication date |
|---|---|
| KR970018929A (en) | 1997-04-30 |
| KR100233203B1 (en) | 1999-12-01 |
| JPH0998545A (en) | 1997-04-08 |
| CN1147163A (en) | 1997-04-09 |
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