CN100508330C - Iron core of motor, motor and the manufacture method for iron core of motor - Google Patents
Iron core of motor, motor and the manufacture method for iron core of motor Download PDFInfo
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- CN100508330C CN100508330C CNB2006100733883A CN200610073388A CN100508330C CN 100508330 C CN100508330 C CN 100508330C CN B2006100733883 A CNB2006100733883 A CN B2006100733883A CN 200610073388 A CN200610073388 A CN 200610073388A CN 100508330 C CN100508330 C CN 100508330C
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Abstract
The invention relates to a laminated straight iron core of motor. Wherein, several tooth parts (11) of iron core (1) via the iron core bend part (12) of V-shape cut (13) are connected in band shape; at the direction that closes the V-shape cut (13), the bend part (12) is bended into annular shape; the front part of V-shape cut (13) has hole parts (14); protrusion is arranged opposite to the cut part (13); the part from the hole parts (14) to two sides of front of cut part (13) is parallel cut off, to form stress-proof parts (16, 16'), to improve the service life of punch mould and reduce the stress when bending iron core, to improve the process accuracy.
Description
The application is that Nippon Electronics Shibaura Co., Ltd. submits to, the applying date is on August 7th, 2003, application number is divided an application for the application for a patent for invention of " 03127561.3 ".
Technical field
The present invention relates to a kind of iron core of electric motor that is used for motor such as brushless DC motor, use the manufacture method of this motor unshakable in one's determination and this iron core of electric motor.
Background technology
The a plurality of straight shape iron cores of the lamination unshakable in one's determination of normally used motor form ring-type, and this straight shape iron core connects a plurality of tooth portion from the silicon steel plate stamping-out with band shape.
Partial plan layout according to the straight shape iron core 100 of band shape shown in Figure 10 illustrates straight shape iron core in the past below.The unshakable in one's determination bend 112 of straight shape iron core 100 by having V word shape notch 113 connects a plurality of tooth portion 111 with band shape, and the silicon steel plate by the stamping-out lamination forms.
Iron core of electric motor forms annular by the bend unshakable in one's determination 112 towards direction warpage this straight shape iron core 100 of closed this V word shape notch 113, connects its both ends, formation ring-type laminated core.
In the straight shape iron core 100 in the past, B portion enlarged drawing is such as shown in figure 11, the hole portion 114 of the circle of bend 112 unshakable in one's determination is provided with (in Figure 11 continuously at the leading section outer circumferential side and the V word shape notch 113 of V word shape notch 113, V word shape leading section is located at the position unanimous on the whole with the circumference of hole portion 114), when straight shape iron core 100 is carried out bending machining, to prevent from the little steel plate connecting portion 117 of width, to make flexural deformation even with cracking, in addition, be provided for preventing circular-arc junction surface 115,115 ＇ of the offset that the tooth portion 111 of adjacency is mutual.
In above-mentioned straight shape iron core 100, have wasp waist shape portion 118 at the intersection point of the hole of circle portion 114 and V word shape notch 113, form protuberance 116,116 ＇ of steel plate in its both sides.For this reason, when the stamping-out steel plate, the strike intensity of blanking die descends at steel plate protuberance 116,116 ＇, dashes
The abrasive damage of mould is local to become big, and descend to die life, causes depreciation cost, the maintenance cost of blanking die, the costs such as increase of equipment maintenance cost to increase.
When increasing the diameter of hole portion 114 for the homogenizing that realizes above-mentioned strike intensity, the sectional area of bend unshakable in one's determination 112 that becomes the magnetic circuit of 111 in tooth portion reduces, magnetic resistance increases, magnetic characteristic descends, in addition, in the time will reducing magnetic resistance, need make the size of iron core self bigger, exist motor to become big problem.
In addition, when the above-mentioned straight shape iron core 100 of warpage, when forming ring-shaped core, like that, the steel plate protuberance 116 of wasp waist shape portion 118 both sides and the leading section of 116 ＇ become the crooked fulcrum of bend 112 unshakable in one's determination, rock deformation pressure concentration of local shown in Figure 12 (a) and (b), this rock deformation pressure produces big strain at steel plate, in addition, in addition, this strain deformation zone also enlarges, the iron loss that becomes the bend unshakable in one's determination 112 of magnetic circuit increases, and reduces magnetic characteristic.
In addition, the generation of the processing strain during the unshakable in one's determination bend 112 of warpage or the deviation of its generation descend the form accuracy (for example roundness, concentricity, axiality etc.) of ring-shaped core, cause using the noise and the vibration of its motor.
Summary of the invention
The object of the present invention is to provide a kind of iron core of electric motor, use the manufacture method of this motor unshakable in one's determination and this iron core of electric motor, this iron core of electric motor is located at the shape of notch of the bend of the straight shape iron core that constitutes iron core of electric motor by improvement, thereby improve the life-span of the blanking die of straight shape iron core, in addition, thereby magnetic characteristic is kept in the strain of the steel plate when reducing bending machining unshakable in one's determination, and improves machining accuracy.
The straight shape iron core of the lamination unshakable in one's determination of the motor of first aspect present invention, the a plurality of tooth portion of this straight shape iron core connects with band shape by the bend unshakable in one's determination with V word shape notch, above-mentioned bend unshakable in one's determination is flexed into ring-type and forms in the direction of closing above-mentioned V word shape notch; It is characterized in that: the leading section outer circumferential side at the V of above-mentioned straight shape iron core word shape notch is provided with hole portion continuously, forward surface at above-mentioned V word shape notch is provided with concavo-convex projection, and, substantially, form strain and prevent notch abreast to carrying out local excision to the two side portions of above-mentioned V word shape notch leading section from above-mentioned hole portion.
According to iron core of electric motor of the present invention, hole portion from the V word shape notch leading section outer circumferential side of being located at straight shape iron core is continuously further carried out local excision to the two side portions of above-mentioned V word shape notch leading section, form strain and prevent notch, thereby the wasp waist shape portion that does not have part in the past, strike intensity during straight shape stamping-out unshakable in one's determination rises equably, can prevent the abrasive damage of blanking die, improve die life.In addition, add man-hour at the warpage that carries out bend unshakable in one's determination, strain prevents that notch from becoming crooked fulcrum, and contact-making surface increases, and rock deformation pressure disperses, so, can suppress the generation of the strain of steel plate, prevent the decline of magnetic characteristic, and, can improve the bending machining precision.In addition, because the aperture that can keep bend unshakable in one's determination, so, the decline and the maximization unshakable in one's determination of the magnetic characteristic that the increase of magnetic resistance causes do not appear.
A kind of iron core of electric motor of second aspect present invention, it is characterized in that: a plurality of straight shape iron cores are carried out lamination, the a plurality of tooth portion of this straight shape iron core connects with band shape by the bend unshakable in one's determination with V word shape notch, the straight shape iron core of this lamination is carried out a plurality of laminations, a plurality of separation iron cores that each tooth portion is cut off of above-mentioned straight shape superimposed layer unshakable in one's determination behind lamination; With the straight shape of a plurality of connections behind the lamination unshakable in one's determination with a plurality of laminations after the iron core that separates alternately carry out lamination; Bend unshakable in one's determination between the tooth portion of laminated core, the separation of iron that slit longitudinally is formed on adjacency in the heart, and, between the tooth portion of laminated core, connecting portion and slit are set alternately; The direction of the above-mentioned V word shape notch of the straight shape iron core by the connection after closing lamination is flexed into above-mentioned bend unshakable in one's determination annularly and forms, and has improved roundness.
According to iron core of electric motor of the present invention, owing to the connecting portion and disconnected and the lamination that form at bend unshakable in one's determination between tooth portion, so, form the warpage handling ease of ring-type, rear of core is few, and iron core is easy to form circle, in addition, the cogging torque and the torque ripple of its motor be can reduce to use, low vibration and low noise realized.
The iron core of the motor of third aspect present invention is characterised in that: the leading section outer circumferential side at the V of above-mentioned straight shape iron core word shape notch is provided with circular hole portion continuously, forward surface at above-mentioned V word shape notch is provided with concavo-convex projection, and, in order to prevent strain, substantially, form notch abreast to carrying out local excision to the two side portions of above-mentioned V word shape notch leading section from above-mentioned hole portion.
According to iron core of electric motor of the present invention, straight shape stamping-out intensity unshakable in one's determination rises equably, prevents the abrasive damage of blanking die, improves die life; In addition, the strain of the steel plate in the time of can suppressing bending machining takes place, and prevents the decline of magnetic characteristic, and can improve the bending machining precision, keeps the aperture of bend unshakable in one's determination, does not need the decline and the maximization unshakable in one's determination of magnetic characteristic.In addition, roundness unshakable in one's determination improves, and the cogging torque and the torque ripple of motor reduce, and can realize low vibration and low noiseization.
The motor of fourth aspect present invention is characterised in that: form insulation division at first the iron core of electric motor of each record to the third aspect, the coil of reeling thereon forms stator; Be provided with rotor with the magnetic that is provided with in opposite directions with said stator.
In motor of the present invention, by using the stator of excellent in magnetic characteristics, can obtain at an easy rate that driveability is good, noise and the few motor of vibration, the brushless DC motor of minitype high-performance particularly can be provided.
A fifth aspect of the present invention provides a kind of manufacture method of iron core of electric motor, it is characterized in that: the steel plate by the stamping-out lamination forms straight shape iron core, the a plurality of tooth portion of this straight shape iron core connects with band shape by the bend unshakable in one's determination with V word shape notch, when carrying out this stamping-out, form the hole portion continuous, be located at, and the strain of carrying out local excision substantially abreast to the two side portions of above-mentioned V word shape notch leading section from above-mentioned hole portion prevented notch with the concavo-convex projection of the forward surface of above-mentioned V word shape notch with its leading section outer circumferential side at above-mentioned V word shape notch; Direction at the above-mentioned V word shape notch of closing straight shape iron core is flexed into ring-type with above-mentioned bend unshakable in one's determination, connects its both ends, forms unshakable in one's determination.
According to the manufacture method of iron core of electric motor of the present invention, hit intensity during the stamping-out of straight shape iron core and rise, can prevent the abrasive damage of blanking die, improve die life.In addition, add man-hour at the warpage that carries out bend unshakable in one's determination, strain prevents that notch from becoming crooked fulcrum, to rock deformation pressure dispersion, the reduction of steel plate, so, can suppress the generation of strain, prevent the decline of the magnetic characteristic of bend, improve the bending machining precision.In addition, because the aperture that can keep bend unshakable in one's determination, so, the decline and the maximization unshakable in one's determination of the magnetic characteristic that the increase of magnetic resistance causes do not appear.
Description of drawings
Fig. 1 is the plane graph of the straight shape iron core of the 1st form of implementation.
Fig. 2 is the partial enlarged drawing of Fig. 1.
Fig. 3 is the enlarged drawing of the V word shape notch of the 1st form of implementation.
Key diagram when Fig. 4 is the bending machining of V word shape notch of the 1st form of implementation.
Fig. 5 is the perspective view of the iron core of the 1st form of implementation.
Fig. 6 is the local section perspective view of the iron core of the 1st form of implementation.
Fig. 7 is the circle diagram that roundness unshakable in one's determination is shown.
Fig. 8 is the plane graph of the separation iron core of the 2nd form of implementation.
Fig. 9 is the side view of the laminated core of the 2nd form of implementation.
Figure 10 is the partial enlarged drawing of the straight shape iron core of past example.
Figure 11 is the enlarged drawing of the V word shape notch of past example.
The key diagram of Figure 12 during for the bending machining of the V word shape notch of example in the past.
Embodiment
(the 1st form of implementation)
Below according to Fig. 1～7 explanations the 1st form of implementation of the present invention.
Fig. 1 is the plane graph of the straight shape iron core 1 of the iron core of formation brushless DC motor.Fig. 2 is the partial enlarged drawing of straight shape iron core 1 shown in Figure 1, and Fig. 3 is an enlarged drawing of being located at the V word shape notch (the A portion of Fig. 2) of bend unshakable in one's determination.
As shown in Figure 1, 2, straight shape iron core 1 forms by using blanking die to carry out stamping-out by forcing press from the silicon steel plate of lamination, the narrow and small connecting portion 17 of width of notch 13 bottoms of the unshakable in one's determination bend 12 of a plurality of T word shape tooth portion 11 by having V word shape notch 13 connects into band shape, calking is opened in the precalculated position with hole 21, is provided for connecting portion 20a, 20b that the straight shape iron core 1 of warpage connects into ring-type at its both ends.
A portion enlarged drawing is such as shown in Figure 3 for the V word shape notch 13 of above-mentioned straight shape iron core 1, front end outer circumferential side at V word shape notch 13 is provided with circular hole portion 14 (V word shape leading section is arranged at the circumference position unanimous on the whole with hole portion in the drawings) continuously, the crackle of the narrow and small connecting portion 17 of width takes place when preventing to carry out bending machining, the flexural deformation of bend 12 unshakable in one's determination is even, in addition, at the circular-arc junction surface 15 that the opposite face setting of V word shape notch 13 has concavo-convex projection, 15 ＇, with the mutual offset of the tooth portion 11 that prevents adjacency, each tooth portion 11 evenly forms ring-type.
The leading section of above-mentioned V word shape notch 13 abreast to carrying out local excision from the both sides hypotenuse 18a of hole portion 14 to V word shape notchs, 13 leading sections of circle, the part of 18b, forms strain and prevents notch 16,16 ＇ substantially.This strain prevents that notch 16,16 ＇ do not have the wasp waist shape portion that comprises local protuberance in the past, has from the wasp waist shape of the cardinal principle linearity of both sides hypotenuse 18a, the 18b of hole portion 14 to V word shape notchs, 13 leading sections.
In above-mentioned straight shape iron core 1, because having the strain that forms linearity substantially from circular port portion 14 to the V word shape notchs 13 of bend 12 unshakable in one's determination prevents notch 16,16 ＇, so, hitting power during steelplate punching is evenly whole at the blade of blanking die, hit intensity in the local decline of wasp waist portion, the strike intensity of blanking die rises, and can prevent local abrasive damage.
Like this, not only can improve the working (machining) efficiency of stamping-out, and the life-span of blanking die is elongated, the maintenance cost of the depreciation cost of mould, maintenance cost, equipment reduces, and can save its expense.
In addition, improve by shape above-mentioned V word shape notch 13, need not make the diameter of hole portion 14 of bend 12 unshakable in one's determination bigger for hitting power improves in the past the wasp waist shape portion of increasing, the sectional area of magnetic circuit that can keep 11 in tooth portion obtains and in the past equal magnetic characteristic to keep magnetic resistance.In addition, do not need to increase size, the reduction magnetic resistance of iron core self, can not cause the maximization of brushless DC motor.
In above-mentioned straight shape iron core 1, when warpage bend 12 unshakable in one's determination forms toroidal core, such shown in Fig. 4 (a) and (b), make the strain of bend 12 unshakable in one's determination prevent that notch 16 and 16 ＇ from becoming crooked fulcrum ground and with linearity steel plate being contacted, so it is its rock deformation pressure disperses, few by the strain 19 of being out of shape the steel plate that produces, in addition, strain generation area reduces with comparing in the past also significantly.
Like this, do not increase the iron loss of the bend unshakable in one's determination 12 that becomes magnetic circuit, can carry out the bending machining of laminated core, magnetic characteristic not being exerted an influence to keep magnetic efficiency well.
In addition, processing strain during warpage iron core bend 12 reduces, and the machining accuracy of iron core shape improves, and concentricity between roundness, iron core and axiality etc. are good, the high iron core of machining accuracy can be obtained, the noise of brushless DC motor, the generation of vibration can be reduced.
The iron core 2 of brushless DC motor of the present invention is after further a plurality of these the straight shape iron cores 1 of lamination are fixed as preset thickness, as shown in Figure 5, warpage bend 12 unshakable in one's determination forms ring-type on the direction of closing this V word shape notch 13, the connecting portion 20a and the 20b that connect (not shown) two ends unshakable in one's determination, thereby form the ring-type laminated core, form unshakable in one's determination 2.
In addition, unshakable in one's determination 2 by in metal pattern with the moulded resin 4 of molten condition injection molding shaping usefulness, cover its outer peripheral face (not shown) by embedding to be shaped, can obtain to form the iron core 3 of the stator of insulation division at side face as shown in Figure 6.But the leading section 22a of the lamination tooth portion 22 relative with rotor can't help resin and covers in brushless DC motor, keeps exposing state.
Fig. 7 is the circle diagram that the roundness unshakable in one's determination of the present invention and product in the past is shown, and Fig. 7 (a) is a product of the present invention, (b) is product in the past.In Fig. 7,, the difference of the relative design radial of measured value is shown with the radar map shape by the measuring space of 10 degree complete all peripheral radius unshakable in one's determination.Carry out at 3 positions that are determined at stack direction of radius unshakable in one's determination, and the A (◆) among the figure locates for upper layer part unshakable in one's determination, and B (■) locates for central portion, and C (●) locates for lower layer part.
By finding out among the figure, in iron core of the present invention, radius is positioned at design radial (on 0 circumference of figure) along full Zhou Dati, even break away from design load, difference also is in ± scope of 0.05mm in, roundness unshakable in one's determination is good.On the other hand, the deviation of the radius of past product on week unshakable in one's determination is big, particularly exist partly from design load depart from big (with the difference of design load about ± 0.15mm) the position, iron core becomes the circle of distortion, roundness is poor, becomes the reason of vibration and noise.
Iron core 3 behind the Overmolded resin is finished stator at the side face coiling coil of each tooth portion 22, is assembled into brushless DC motor.
Comprise that this stator has good magnetic characteristic with the brushless DC motor of the rotor with magnetics such as permanent magnet relative with this stator, the efficient height, and can realize low noise, low vibrationization, and can reduce cost, useful as the small-sized brushless DC motor that is suitable for purposes such as air-conditioning fan or air blast.
(the 2nd form of implementation).
Fig. 8 is the plane graph of separation iron core 30 that is used to form the iron core of the 2nd form of implementation.Separate iron core 30 and arrange a plurality of separation 31 formation iron cores unshakable in one's determination that each tooth portion 32 is cut off at sweep 33 unshakable in one's determination.
Laminated core 4 shown in Figure 9 is by making alternately lamination and both tooth portion 32 and 11 is overlapped obtain of the straight shape iron core 1 that separates iron core 30 and be used for above-mentioned the 1st form of implementation, and a plurality of tooth portion of this straight shape iron core 1 connects into band shape by the bend unshakable in one's determination with V word shape notch.Shown in the side view of the laminated core 4 of Fig. 9 like that, the sweep unshakable in one's determination 33 of laminated core 4 longitudinally slit 35 be formed between the separation iron core 31,31 of adjacency, connecting portion and slit 35 alternately are set between the tooth portion of laminated core 4.
In the 2nd form of implementation, direction warpage at the V word shape notch of closing straight shape iron core 1 forms ring-type with iron core, because the warpage handling ease of the sweep unshakable in one's determination 33 of slit 35 is set, so, rear of core reduces, roundness unshakable in one's determination further improves, and can reduce this iron core is used for the cogging torque and the torque ripple of the brushless DC motor of stator, further realizes low vibration and low noiseization.
Above-mentioned laminated core 4 obtains by the separation iron core 30 and the straight shape unshakable in one's determination 1 of mutual lamination predetermined quantity, but also not the separation iron core 30 and the straight shape iron core 1 of specific quantity of lamination alternately disposes the connecting portion that alternately forms and the height of slit at the bend unshakable in one's determination of laminated core brokenly along thickness direction.
In addition, after making 4 insulation of this laminated core, the coiling coil, Overmolded resin on the external overall except that internal diameter of the stator of the laminated core that curled, thus can be made into that shape approaches, the motor of antivibration and moisture-proof gas.
As described above, iron core of electric motor of the present invention can improve the life-span that the stamping-out that constitutes straight shape iron core unshakable in one's determination is used mould, reduces die cost, its depreciation cost, maintenance cost, reduces cost.In addition, can the bending machining when forming toroidal core unshakable in one's determination, suppress the strain of bend unshakable in one's determination from straight shape, keep magnetic characteristic, the high efficiency that keeps motor, and can obtain high-precision stator by improving machining accuracy, so, can reduce cogging torque and torque ripple, acquisition can realize the motor of low vibration and low noiseization.
In addition, in the manufacture method of iron core of electric motor of the present invention, can make above-mentioned straight shape iron core at an easy rate, the iron core that is suitable for brushless DC motor and the stator of machining accuracy and excellent in magnetic characteristics is provided.
Claims (4)
1. iron core of electric motor is characterized in that:
A plurality of straight shape iron cores are carried out lamination, the a plurality of tooth portion of this straight shape iron core connects with band shape by the bend unshakable in one's determination with V word shape notch, the straight shape iron core of this lamination is carried out a plurality of laminations, a plurality of separation iron cores that each tooth portion is cut off of above-mentioned straight shape superimposed layer unshakable in one's determination behind lamination;
With the straight shape of a plurality of connections behind the lamination unshakable in one's determination with a plurality of laminations after the iron core that separates alternately carry out lamination;
Bend unshakable in one's determination between the tooth portion of laminated core, the separation of iron that slit longitudinally is formed on adjacency in the heart, and, between the tooth portion of laminated core, connecting portion and slit are set alternately;
The direction of the above-mentioned V word shape notch of the straight shape iron core by the connection after closing lamination is flexed into above-mentioned bend unshakable in one's determination annularly and forms, and has improved roundness.
2. iron core of electric motor according to claim 1, it is characterized in that: the leading section outer circumferential side at the V of above-mentioned straight shape iron core word shape notch is provided with circular hole portion continuously, forward surface at above-mentioned V word shape notch is provided with concavo-convex projection, and, in order to prevent strain, to carrying out local excision to the part of the both sides of above-mentioned V word shape notch leading section, form notch abreast from above-mentioned hole portion.
3. motor is characterized in that:
Form insulation division in claim 1 or 2 described iron core of electric motor, the coil of reeling thereon forms stator; And be provided with rotor with the magnetic that is provided with in opposite directions with said stator.
4. motor according to claim 3 is characterized in that: the external overall except that internal diameter that is covered said stator by moulded resin.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB031275613A CN1316715C (en) | 2003-08-07 | 2003-08-07 | Motor iron core, motor and method for manufacturing motor ironcore |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB031275613A Division CN1316715C (en) | 2003-08-07 | 2003-08-07 | Motor iron core, motor and method for manufacturing motor ironcore |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1953294A CN1953294A (en) | 2007-04-25 |
| CN100508330C true CN100508330C (en) | 2009-07-01 |
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Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB031275613A Expired - Fee Related CN1316715C (en) | 2003-08-07 | 2003-08-07 | Motor iron core, motor and method for manufacturing motor ironcore |
| CNB2006100733883A Expired - Lifetime CN100508330C (en) | 2003-08-07 | 2003-08-07 | Iron core of motor, motor and the manufacture method for iron core of motor |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB031275613A Expired - Fee Related CN1316715C (en) | 2003-08-07 | 2003-08-07 | Motor iron core, motor and method for manufacturing motor ironcore |
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| Country | Link |
|---|---|
| CN (2) | CN1316715C (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103730966A (en) * | 2012-10-15 | 2014-04-16 | 普罗蒂恩电子有限公司 | An insulated tooth for an electric motor or generator |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI455452B (en) * | 2011-01-28 | 2014-10-01 | Nippon Steel & Sumitomo Metal Corp | Producting method of spiral core for rotating electrical machine and producting apparatus of spiral core for rotating electrical machine |
| CN103023165B (en) * | 2011-09-21 | 2017-10-31 | 德昌电机(深圳)有限公司 | Stator core construction for motor and stator forming method |
| JP5993580B2 (en) * | 2012-02-14 | 2016-09-14 | 日本発條株式会社 | Motor stator core and manufacturing method |
| WO2014024987A1 (en) * | 2012-08-08 | 2014-02-13 | 株式会社デンソー | Stator, stator core for stator, stator core production method, and sheet core bending device |
| JP5881895B2 (en) * | 2013-05-10 | 2016-03-09 | 三菱電機株式会社 | Iron core member, inner rotor type stator of rotating electric machine, and method of manufacturing inner rotor type stator of rotating electric machine |
| CN104917304A (en) * | 2015-06-03 | 2015-09-16 | 威灵（芜湖）电机制造有限公司 | Prefabricated stamped sheet, stator stamped sheet, stator iron core, manufacturing method of stator iron core and motor |
| US11031831B2 (en) * | 2016-04-21 | 2021-06-08 | Mitsubishi Electric Corporation | Electric motor and air conditioner |
| CN106100191A (en) * | 2016-07-18 | 2016-11-09 | 始兴县标准微型马达有限公司 | The structural member of motor and motor thereof and processing technology |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1071061C (en) * | 1996-02-23 | 2001-09-12 | 松下电器产业株式会社 | Motor |
| CN2894033Y (en) * | 2003-08-07 | 2007-04-25 | 日本电产芝浦株式会社 | Motor iron core and motor |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000217283A (en) * | 1999-01-19 | 2000-08-04 | Shibaura Mechatronics Corp | Motor stator and manufacture of a motor using the same |
| TW508891B (en) * | 2000-02-21 | 2002-11-01 | Misubishi Electric Corp | Stator iron core of electric motor, manufacturing method thereof, electric motor, and compresor |
| JP2002247788A (en) * | 2001-02-22 | 2002-08-30 | Nidec Shibaura Corp | Motor |
-
2003
- 2003-08-07 CN CNB031275613A patent/CN1316715C/en not_active Expired - Fee Related
- 2003-08-07 CN CNB2006100733883A patent/CN100508330C/en not_active Expired - Lifetime
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1071061C (en) * | 1996-02-23 | 2001-09-12 | 松下电器产业株式会社 | Motor |
| CN2894033Y (en) * | 2003-08-07 | 2007-04-25 | 日本电产芝浦株式会社 | Motor iron core and motor |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103730966A (en) * | 2012-10-15 | 2014-04-16 | 普罗蒂恩电子有限公司 | An insulated tooth for an electric motor or generator |
| CN111628595A (en) * | 2012-10-15 | 2020-09-04 | 普罗蒂恩电子有限公司 | Teeth for electric motors or generators |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1316715C (en) | 2007-05-16 |
| CN1581639A (en) | 2005-02-16 |
| CN1953294A (en) | 2007-04-25 |
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