CN100391087C - Electromotor - Google Patents
Electromotor Download PDFInfo
- Publication number
- CN100391087C CN100391087C CNB2005101192279A CN200510119227A CN100391087C CN 100391087 C CN100391087 C CN 100391087C CN B2005101192279 A CNB2005101192279 A CN B2005101192279A CN 200510119227 A CN200510119227 A CN 200510119227A CN 100391087 C CN100391087 C CN 100391087C
- Authority
- CN
- China
- Prior art keywords
- retainer
- field frame
- side flange
- motor field
- bearing
- 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.)
- Active
Links
Images
Abstract
The motor 1 comprises a motor casing 2 made of a press-formed material of an iron-system metal, a stator 3 provided with a plurality of split cores 31 fixed annularly to the motor casing 2, a rotor 4 provided with a rotating shaft 41, and first and second bearings 5, 6 that support the rotating shaft 41 rotatably at the sides of first and second open ends 21, 22 of the motor casing 2. Fitting projections 91, 96 are formed at one side and fitting holes 92, 97 into which the fitting projections 91, 96 are fitted are formed on the other side between a first holder side flange portion 76 and a first casing side flange portion 26, and between a second holder side flange portion 87 and a second casing side flange portion 27. To provide a motor that has high concentricity with a rotor and a stator even when split cores are used and that does not reduce the holding strength of a bearing even when a cylindrical portion for holding the bearing is formed on a bearing holder.
Description
Technical field
The present invention relates to be fixed on the motor on the inner peripheral surface of motor field frame.
Background technology
In the various motor, three-phase inner-rotor-type DC brushless motor, has motor field frame 2 ', stator 3 ' and rotor 4 ', the two ends of motor field frame 2 ' have the 1st open end 21 ' and the 2nd open end 22 ', the inner peripheral surface that stator 3 ' has relative motor field frame 2 ' is fixed into circular a plurality of iron cores 31 ' of cutting apart, rotor 4 ' has the rotating shaft 41 ' in the interior side direction axis direction extension of stator 3 ', and rotating shaft 41 ' utilizes the 1st open end 21 ' side that is configured in motor field frame 2 ' and the 1st bearing 5 ' and the 2nd bearing 6 ' that are configured in the 2nd open end 22 ' side to be supported to rotatable.
Here, the 1st bearing 5 ' and the 2nd bearing 6 ' are kept by the 1st retainer 7 ' and the 2nd retainer 8 ' that are installed on the motor field frame 2 ' respectively, to cover the 1st open end 21 ' of motor field frame 2 '.In addition, the 1st retainer 7 ' and the 2nd retainer 8 ' embed with Embedded Division 11 ', 12 ', 13 ', 14 ' and are fixed on the motor field frame 2 ', fix by this embedding, to positioning between motor field frame 2 ' and the 1st retainer 7 ' and the 2nd retainer 8 ', thus, adjust the axiality (for example, with reference to patent documentation 1) of rotor 4 ' and stator 3 '.
[patent documentation 1] Japan Patent spy opens the 2003-111335 communique
This motor is cut apart iron core 31 ' because use, and higher this advantage of coiling density (Japanese: Line Plot leads) of winding is arranged, and can not cut apart the unshakable in one's determination 31 ' unfavorable condition that is fixed on separately in the motor field frame 2 ' but have.Therefore, be fixed on the inner peripheral surface of motor field frame 2 ' owing to must will cut apart unshakable in one's determination 31 ', so the considerable influence of precision when the axiality of rotor 4 ' and stator 3 ' is subjected to the inner peripheral surface machining accuracy of motor field frame 2 ' or is fixed on the 1st retainer 7 ' and the 2nd retainer 8 ' on the motor field frame 2 ' with modes such as bonding agent, steady pin, resin-molded moulding and hot jackets.
But general, motor field frame 2 ' in the past is by making the extrusion process of aluminium etc., and therefore, the inner peripheral surface machining accuracy of motor field frame 2 ' is low, and if inner peripheral surface is carried out secondary operations, then increases cost.
In addition, the 1st retainer 7 ' and the 2nd retainer 8 ' are being embedded when being fixed on the motor field frame 2 ' that forms by aluminium, if tighten up this telescoping part, burr (Japanese: yarn ば り) then takes place, when this burr is fallen in the motor field frame 2 ', just this problem that causes defective insulation is arranged.
In addition, bearing 5 ', 6 ' to be remained on the retainer 7 ', 8 ', just must carry out pull and stretch and be processed to form cylindrical portion 75 ', 85 ', and carry out pull and stretch processing retainer 7 ', 8 ', then this part is with regard to attenuation, makes bearing 5 ', 6 ' maintenance intensity decreases.
This problem, if making motor field frame 2 ' with the stamping parts of ferrous metal just roughly can solve, but in the occasion that is the stamping parts of Ferrious material, to be fixed on the precision of motor field frame 2 ' when going up low because the 1st retainer 7 ' and the 2nd retainer 8 ' embedded, so the problem of the axiality decline of rotor 4 ' and stator 3 ' is arranged.
Summary of the invention
In view of the above-mentioned problems, the 1st purpose of the present invention is, even a kind of also high motor of axiality of cutting apart occasion, rotor and stator unshakable in one's determination in use is provided.
And the 2nd purpose of the present invention is, forms the occasion of the cylindrical portion that promising retainer shaft holds, also can not make the motor of the maintenance intensity decreases of bearing at retainer even provide a kind of.
For achieving the above object, motor of the present invention has motor field frame, stator, rotor and bearing, one end of described motor field frame is the open end, described stator has relatively, and the inner peripheral surface of this motor field frame is fixed into circular a plurality of iron cores of cutting apart, be wound on this a plurality of coils of cutting apart on the iron core respectively, described rotor has the rotating shaft that extends along axis direction in this stator inboard, with the magnet that is fixed on this rotating shaft outer peripheral face, described bearing rotatably supports described rotating shaft in that the described opening of described motor field frame is distolateral, it is characterized in that, described motor field frame is the drawing part of ferrous metal, described bearing is by being installed on the open distolateral retainer maintenance of described motor field frame to cover the open end of this motor field frame, described retainer and described motor field frame have retainer side flange portion and the case side flange part that overlaps in axis direction at least a portion, side's side in described retainer side flange portion and the described case side flange part, be formed with side-prominent engaging protrusion, and the opposing party's side is formed with and the described engaging protrusion connecting hole of embedding mutually to the opposing party.
Among the present invention, because the drawing part of use ferrous metal is as motor field frame, so the dimensional accuracy of inner peripheral surface etc. are higher.Therefore, even, also can guarantee axiality higher between motor field frame and the stator, so can cut down finished cost the inner peripheral surface of motor field frame not being carried out secondary operations, just will cut apart iron core and be fixed on occasion on this inner peripheral surface.In addition, retainer and motor field frame at least a portion overlaps on the axis direction the retainer side flange portion and case side flange part, utilize engaging protrusion and connecting hole to position, so can easily position retainer and motor field frame.Since be the location that utilizes engaging protrusion and connecting hole to carry out, the precision height, the axiality height between motor field frame and bearing, thus can guarantee axiality higher between rotor and the stator.And, because motor field frame is the stamping parts of ferrous metal, so can easily form engaging protrusion or connecting hole.In addition, if the motor field frame ferrous metal is made, then have motor field frame to be used to form the advantage of magnetic circuit, and be suitable for the miniaturization of motor.
The present invention also is the situation of open end applicable to the motor field frame two ends.Promptly, in other form of the present invention, motor has motor field frame, stator, rotor and the 1st bearing and the 2nd bearing, described motor field frame two ends have the 1st open end and the 2nd open end, described stator has with respect to this motor field frame inner peripheral surface and is fixed into circular a plurality of iron cores of cutting apart, be wound on this a plurality of coils of cutting apart on the iron core respectively, described rotor has the rotating shaft that extends along axis direction in this stator inboard, with the magnet that is fixed on this rotating shaft outer peripheral face, described the 1st bearing and the 2nd bearing are the described the 1st open distolateral and the 2nd open distolaterally be supported to described rotating shaft rotatable described motor field frame, it is characterized in that, described motor field frame is the drawing part of ferrous metal, in described the 1st bearing and described the 2nd bearing, the 1st bearing by the 1st open the 1st distolateral retainer maintenance that is installed in described motor field frame to cover the 1st open end of this motor field frame, the described the 1st open distolateral the 1st retainer side flange portion and the 1st case side flange part of described the 1st retainer and described motor field frame with at least a portion coincidence on axis direction, side's side in described the 1st retainer side flange portion and described the 1st case side flange part, be formed with the 1st side-prominent engaging protrusion, be formed with and described the 1st engaging protrusion the 1st connecting hole of embedding mutually in the opposing party's side to the opposing party.
Here, described the 2nd bearing is also identical with described the 1st bearing, preferably adopt following structure: by the 2nd open distolateral the 2nd retainer maintenance that is installed in described motor field frame to cover the 2nd open end of this motor field frame, the described the 2nd open distolateral the 2nd retainer side flange portion and the 2nd case side flange part at described the 2nd retainer and described motor field frame with at least a portion coincidence on axis direction, side's side in described the 2nd retainer side flange portion and described the 2nd case side flange part, be formed with the 2nd side-prominent engaging protrusion, be formed with and described the 2nd engaging protrusion the 2nd connecting hole of embedding mutually in the opposing party's side to the opposing party.
Among the present invention, described retainer is the drip molding of ferrous metal preferably.Adopt this structure, even form the occasion of the cylindrical portion be used for keeping bearing at retainer, the maintenance intensity of bearing can not descend yet.
Among the present invention, in described the 1st retainer and described the 2nd retainer, retainer is that the aluminium metalloid is when making, be preferably in the retainer side flange portion of this retainer and be formed with described connecting hole, in described the 1st case side flange part and described the 2nd case side flange part, with case side flange part that a described retainer overlaps on be formed with described engaging protrusion.That is, the occasion in that retainer is made for the aluminium metalloid can not form engaging protrusion when its cut, if hole processing, then comparable being easier to forms.On the contrary, if the punch process part also forms projection easily.Therefore, for engaging protrusion, be preferably formed on the case side flange part that the punch process part constituted.
Among the present invention, described connecting hole preferably is recessed to half dark connecting hole of position in the way to the wall thickness direction of described retainer side flange portion that forms this connecting hole or described case side flange part.Promptly, when connecting hole was formed through hole, it was the reason that causes defective insulation in motor field frame inside that burr etc. come off, if but half dark connecting hole, then this burr can not be shed in the motor field frame, so can prevent the come off phenomenon of the defective insulation that caused such as Yin Maoci.
In having used motor of the present invention, because the drawing part of use ferrous metal is as motor field frame, so the dimensional accuracy of inner peripheral surface is higher.Therefore,, also can guarantee axiality higher between motor field frame and the stator, can cut down finished cost even the motor field frame inner peripheral surface is not carried out secondary operations, just will cut apart iron core and be fixed on occasion on this inner peripheral surface.In addition, retainer and motor field frame, owing to utilize engaging protrusion and connecting hole to position in retainer side flange portion that at least a portion overlaps on axis direction and the case side flange part, so can easily retainer and motor field frame be positioned.Owing to be the location that utilizes engaging protrusion and connecting hole to carry out, so the precision height, the axiality height between motor field frame and the bearing can be guaranteed axiality higher between rotor and the stator.And, because motor field frame is the drawing part of ferrous metal, so can form engaging protrusion and connecting hole easily.In addition, if the motor field frame ferrous metal is made, then motor field frame can be used to form magnetic circuit.
Description of drawings
Fig. 1 is a cutaway view of having used motor of the present invention.
Fig. 2 is the cutaway view of the motor of prior art.
Embodiment
Used motor of the present invention below in conjunction with accompanying drawing explanation.
(overall structure)
Fig. 1 is a cutaway view of having used motor of the present invention.Among Fig. 1, the motor 1 of present embodiment is the inner-rotor-type DC brushless motor 1 of 3 phases, comprising: motor field frame 2; Circular stator 3; With rotor 4, motor field frame 2 two ends have the 1st open end 21 and the 2nd open end 22, and rotor 4 has interior side direction axis direction rotating shaft 41 that extends and the magnet 42 that is fixed on these rotating shaft 41 outer peripheral faces at stator 3.Rotating shaft 41 is supported to rotatable in the 1st open end 21 sides and the 2nd open end 22 sides of motor field frame 2 by the 1st bearing 5 and the 2nd bearing 6.
Here, stator 3 has a plurality ofly cuts apart unshakable in one's determination 31 and be wound on these respectively and cut apart coil 32 on unshakable in one's determination 31, and a plurality of iron cores 31 cut apart are insulated by insulating part 33 with coil 32 and separate.Using this unshakable in one's determination 31 the occasion of cutting apart, have the high advantage of coiling density of winding, and can not be fixed on separately in the motor field frame 2 cutting apart unshakable in one's determination 31.Therefore, cut apart modes such as 31 usefulness bonding agents unshakable in one's determination, steady pin, resin-molded shaping and hot jacket is fixed on the inner peripheral surface of motor field frame 2 circularly.
Here, the 1st bearing 5 and the 2nd bearing 6 are maintained at the 1st open end 21 of motor field frame 2 respectively respectively on the opening that is installed on motor field frame 2 distolateral the 1st retainer 7 and the 2nd retainer 8 with covering.That is,, be formed with the cylindrical portion 75,85 of path, on these cylindrical portion 75,85, be fixed with the 1st bearing 5 and the 2nd bearing 6 at the middle body of the 1st retainer 7 and the 2nd retainer 8.
In addition, the 1st retainer 7 and the 2nd retainer 8 usefulness Embedded Divisions 11,12 embed and are fixed on the motor field frame 2, fix by this embedding, the 1st open end 21 of motor field frame 2 and the 2nd open end 22 just are in the state of being sealed by the 1st retainer 7 and the 2nd retainer 8.
In addition,, also utilize modes such as bolt to be fixed with the lid 29 of cup-shaped in the outside of the 2nd retainer 8,, be formed with the space of configuration codes device (not shown) etc. in the inboard of lid 29 in the 2nd open end of motor field frame 2 22 sides.
(structure of motor field frame 2 and retainer)
In the present embodiment, motor field frame the 2, the 1st retainer 7 and the 2nd retainer 8 are as follows respectively to be constituted like that.
Motor field frame 2: the drawing part of ferrous metal
The 1st retainer 7: the drawing part of ferrous metal
The 2nd retainer 8: the drawing part of ferrous metal
Arbitrary part all is a ferrous metal, for example, is made of the drawing part of cold-rolled steel sheet (SPCC) or galvanized steel plain sheet steel plates such as (SECEF).
So in the motor 1 of structure, in the 1st open end of motor field frame 2 21 sides, be formed with the 1st case side flange part 26 that stretches out to radial direction, and the 1st retainer side flange portion 76 of the 1st retainer 7 overlaps with the 1st case side flange part 26 partly at axis direction.
In addition, for the 1st case side flange part 26, be formed with the 1st engaging protrusion 91 at circumferential a plurality of positions during drawing, and for the 1st retainer side flange portion 76, be formed with at circumferential a plurality of positions when punching press forms and the 1st engaging protrusion 91 the 1st connecting hole 92 of embedding mutually.Here, the 1st connecting hole 92 is half the dark hole that is recessed to position in the way to the wall thickness direction.
In the 2nd open end of motor field frame 2 22 sides, be formed with the 2nd case side flange part 27 that stretches out to radial direction, and the 2nd retainer side flange portion 87 of the 2nd retainer 8 overlaps with the 2nd case side flange part 27 partly at axis direction.
In addition, for the 2nd retainer side flange portion 87, be formed with the 2nd engaging protrusion 96 at circumferential a plurality of positions when punching press forms, and for the 2nd case side flange part 27, be formed with at circumferential a plurality of positions when punching press forms and the 2nd engaging protrusion 96 the 2nd connecting hole 97 of embedding mutually.Here, the 2nd connecting hole 97 is half the dark hole that is recessed to position in the way to the wall thickness direction.
(assembly method)
In the assembly process of like this motor 1 of structure, at first, coil 32 is wound on respectively cut apart on unshakable in one's determination 31 after, will a plurality ofly cut apart unshakable in one's determination 31 along the inner peripheral surface of motor field frame 2 and fix, constitute circular stator 3.
Then, embed 21 rear flank, the 1st open end that are fixed on motor field frame 2 at the 1st retainer 7 that will keep the 1st bearing 5, fixing with bolt etc. as required.At this moment, the 1st engaging protrusion 91 of the 1st case side flange part 26 is embedded in the 1st connecting hole 92 of the 1st retainer side flange portion 76, the 1st retainer 7 is positioned at the 1st open end 21 sides of motor field frame 2.
Then, insert the front of the rotating shaft 41 of rotor 4, rotating shaft 41 is inserted the 1st bearing 5 from the 2nd open end 22 sides of motor field frame 2.
Then, the 2nd retainer 8 that keeps the 2nd bearing 6 is installed in the 2nd open end 22 sides of motor field frame 2.At this moment, the base end side with the rotating shaft 41 of rotor 4 inserts the 2nd bearing 6.In addition, the 2nd engaging protrusion 96 of the 2nd retainer side flange portion 87 is embedded in the 2nd connecting hole 97 of the 2nd case side flange part 27, the 2nd retainer 8 is positioned at the 2nd open end 22 sides of motor field frame 2.So come assembling motor 1.
(the main effect of present embodiment)
As mentioned above, in the motor 1 of present embodiment, because the drawing part of use ferrous metal is as motor field frame 2, so the dimensional accuracy of inner peripheral surface etc. are higher.Therefore,, also can guarantee higher axiality between motor field frame 2 and the stator 3, can cut down finished cost even just cut apart unshakable in one's determination 31 occasion the inner peripheral surface of motor field frame 2 not being carried out secondary operations along this inner peripheral surface setting.
In addition, retainer 7,8 and motor field frame 2, in retainer side flange portion 76,87 that overlaps along axis direction at least a portion and case side flange part 26,27, utilize engaging protrusion 91,96 and connecting hole 92,97 to position, so can easily retainer 7,8 and motor field frame 2 be positioned.
In addition, owing to be the location that utilizes engaging protrusion 91,96 and connecting hole 92,97 to carry out, the positioning accuracy height is so the axiality height between motor field frame 2 and the bearing 5,6 can be guaranteed higher axiality between rotor 4 and the stator 3.
And, because motor field frame the 2, the 1st retainer 7 and the 2nd retainer 8 all are the drawing parts of ferrous metal, so can easily form engaging protrusion or connecting hole.
In addition, if motor field frame 2 ferrous metals are made, this has the advantage that motor field frame 2 can be used to form magnetic circuit.
And, because retainer is the drip molding of ferrous metal, so, also can not make the maintenance intensity decreases of bearing even form the occasion of the cylindrical portion 75,85 that the maintenance bearing uses at retainer.
(the 1st variation)
In the foregoing description, each member adopts structure as described below.
Motor field frame 2: the drawing part of ferrous metal
The 1st open end 21 sides
26: the 1 engaging protrusion 91 of the 1st case side flange part
The 1st retainer 7: the drawing part of ferrous metal
76: the 1 connecting holes 92 of the 1st retainer side flange portion
The 2nd open end 22 sides
27: the 2 connecting holes 97 of the 2nd case side flange part
The 2nd retainer 8: the drawing part of ferrous metal
87: the 2 engaging protrusion 96 of the 2nd retainer side flange portion,
But also can adopt structure as described below.
Motor field frame 2: the drawing part of ferrous metal
The 1st open end 21 sides
26: the 1 connecting holes 92 (or the 1st engaging protrusion 91) of the 1st case side flange part
The 1st retainer 7: the drawing part of ferrous metal
76: the 1 engaging protrusion 91 (or the 1st connecting hole 92) of the 1st retainer side flange portion
The 2nd open end 22 sides
27: the 2 connecting holes 97 (or the 2nd engaging protrusion 96) of the 2nd case side flange part
The 2nd retainer 8: the drawing part of ferrous metal
87: the 2 engaging protrusion 96 (or the 2nd connecting hole 97) of the 2nd retainer side flange portion.
That is to say, if the drawing part of ferrous metal, because any that forms in engaging protrusion and the connecting hole is easy, therefore, for example, also the 1st engaging protrusion 91 and the 2nd engaging protrusion 96 can be respectively formed in the 1st retainer side flange portion 76 and the 2nd retainer side flange portion 87, the 1st connecting hole 92 and the 2nd connecting hole 97 are respectively formed on the 1st case side flange part 26 and the 2nd case side flange part 27.In addition, also the 1st engaging protrusion 91 and the 2nd engaging protrusion 96 can be respectively formed on the 1st case side flange part 26 and the 2nd case side flange part 27, the 1st connecting hole 92 and the 2nd connecting hole 97 are respectively formed in the 1st retainer side flange portion 76 and the 2nd retainer side flange portion 87.
(the 2nd variation)
In the above-described embodiments, though the 1st retainer 7 and the 2nd retainer 8 also all use the drawing part of ferrous metal to form, but shown in the 3rd and the 4th variation shown in below this example reaches, side in the 1st retainer 7 and the 2nd retainer 8 or both sides form with the cut part of aluminum-based metal.But owing to form engaging protrusion with cut, its working (machining) efficiency obviously descends, thus preferably followingly constitute like that, with side formation connecting hole, promptly at the cut part of aluminum-based metal
Motor field frame 2: the drawing part of ferrous metal
The 1st open end 21 sides
26: the 1 engaging protrusion 91 of the 1st case side flange part
The 1st retainer 7: the cut part of aluminum-based metal
76: the 1 connecting holes 92 of the 1st retainer side flange portion
The 2nd open end 22 sides
27: the 2 engaging protrusion 96 of the 2nd case side flange part
The 2nd retainer 8: the cut part of aluminum-based metal
87: the 2 connecting holes 97 of the 2nd retainer side flange portion.
So, so long as on the retainer that the cut part of aluminum-based metal is constituted, form connecting hole, but just efficient forms well.
(the 3rd variation)
In addition, also can adopt following structure.
Motor field frame 2: the drawing part of ferrous metal
The 1st open end 21 sides
26: the 1 engaging protrusion 91 of the 1st case side flange part
The 1st retainer 7: the cut part of aluminum-based metal
76: the 1 connecting holes 92 of the 1st retainer side flange portion
The 2nd open end 22 sides
27: the 2 engaging protrusion 96 (or the 2nd connecting hole 97) of the 2nd case side flange part
The 2nd retainer 8: the drawing part of ferrous metal
87: the 2 connecting holes 97 (or the 2nd engaging protrusion 96) of the 2nd retainer side flange portion.
(the 4th variation)
Also can adopt following structure.
Motor field frame 2: the drawing part of ferrous metal
The 1st open end 21 sides
26: the 1 engaging protrusion 91 (or the 2nd connecting hole 97) of the 1st case side flange part
The 1st retainer 7: the drawing part of ferrous metal
76: the 1 connecting holes 92 (or the 2nd engaging protrusion 96) of the 1st retainer side flange portion
The 2nd open end 22 sides
27: the 2 engaging protrusion 96 of the 2nd case side flange part
The 2nd retainer 8: the cut part of aluminum-based metal
87: the 2 connecting holes 97 of the 2nd retainer side flange portion.
(other variation)
In the above-described embodiments, be that the two ends of motor field frame 2 become the example of open end, but also can apply the present invention to following motor 1: the end at motor field frame 2 directly remains on bearing on the motor field frame 2, only makes the other end become the open end.In addition, in the occasion that the side in the 1st retainer 7 and the 2nd retainer 8 or both sides are made with aluminum-based metal, also can use die casting.In addition, side in the 1st retainer 7 and the 2nd retainer 8 or the both sides punch process part that also can use aluminum-based metal system.
In the above-described embodiments, be be configured in to drawing the member in left side and open end as the 1st, will be configured in the retainer of the member on right side and open end as the 2nd, even but both put upside down also passable to drawing.
Claims (7)
1. motor, has motor field frame, stator, rotor and bearing, one end of described motor field frame is the open end, described stator has relatively, and the inner peripheral surface of this motor field frame is fixed into circular a plurality of iron cores of cutting apart, be wound on this a plurality of coils of cutting apart on the iron core respectively, described rotor has at this due to the inboard rotating shaft that extends along axis direction, with the magnet that is fixed on this rotating shaft outer peripheral face, described bearing rotatably supports described rotating shaft in that the described opening of described motor field frame is distolateral, it is characterized in that
Described motor field frame is the drawing part of ferrous metal,
Described bearing is by being installed on the open distolateral retainer maintenance of described motor field frame covering the open end of this motor field frame,
Described retainer and described motor field frame have retainer side flange portion and the case side flange part that overlaps in axis direction at least a portion,
Side's side in described retainer side flange portion and described case side flange part is formed with the side-prominent engaging protrusion to the opposing party, and is formed with and the described engaging protrusion connecting hole of embedding mutually in the opposing party's side.
2. motor, has motor field frame, stator, rotor and the 1st bearing and the 2nd bearing, described motor field frame two ends have the 1st open end and the 2nd open end, described stator has with respect to this motor field frame inner peripheral surface and is fixed into circular a plurality of iron cores of cutting apart, be wound on this a plurality of coils of cutting apart on the iron core respectively, described rotor has the rotating shaft that extends along axis direction in this stator inboard, with the magnet that is fixed on this rotating shaft outer peripheral face, described the 1st bearing and the 2nd bearing are the described the 1st open distolateral and the 2nd open distolaterally be supported to described rotating shaft rotatable described motor field frame, it is characterized in that
Described motor field frame is the drawing part of ferrous metal,
In described the 1st bearing and described the 2nd bearing, the 1st bearing by the 1st open the 1st distolateral retainer maintenance that is installed in described motor field frame covering the 1st open end of this motor field frame,
The described the 1st open distolateral the 1st retainer side flange portion and the 1st case side flange part that has in the coincidence of axis direction at least a portion of described the 1st retainer and described motor field frame,
Side's side in described the 1st retainer side flange portion and described the 1st case side flange part is formed with the 1st side-prominent engaging protrusion to the opposing party, is formed with and described the 1st engaging protrusion the 1st connecting hole of embedding mutually in the opposing party's side.
3. motor as claimed in claim 2 is characterized in that,
Described the 2nd bearing by the 2nd open the 2nd distolateral retainer maintenance that is installed on described motor field frame covering the 2nd open end of this motor field frame,
The described the 2nd of described the 2nd retainer and described motor field frame opened distolateral, has the 2nd retainer side flange portion and the 2nd case side flange part that overlap in axis direction at least a portion,
Side's side in described the 2nd retainer side flange portion and described the 2nd case side flange part is formed with the 2nd side-prominent engaging protrusion to the opposing party, is formed with and described the 2nd engaging protrusion the 2nd connecting hole of embedding mutually in the opposing party's side.
4. as each described motor in the claim 1 to 3, it is characterized in that described retainer is the drawing part of ferrous metal.
5. motor as claimed in claim 3 is characterized in that,
In described the 1st retainer and described the 2nd retainer, a retainer is an aluminum-based metal system, and is formed with described connecting hole in the retainer side flange portion of this retainer,
In described the 1st case side flange part and described the 2nd case side flange part, and be formed with described engaging protrusion on the case side flange part that a described retainer overlaps.
6. as each described motor in the claim 1 to 3, it is characterized in that described retainer is an aluminum-based metal system, and on described case side flange part, be formed with described engaging protrusion, in described retainer side flange portion, be formed with described connecting hole.
7. as each described motor in the claim 1 to 3, it is characterized in that described connecting hole is half the dark connecting hole that is recessed to position in the way to the wall thickness direction of described retainer side flange portion that forms this connecting hole or described case side flange part.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2004316966A JP2006129650A (en) | 2004-10-29 | 2004-10-29 | Motor |
| JP2004316966 | 2004-10-29 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1767324A CN1767324A (en) | 2006-05-03 |
| CN100391087C true CN100391087C (en) | 2008-05-28 |
Family
ID=36723725
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2005101192279A Active CN100391087C (en) | 2004-10-29 | 2005-10-28 | Electromotor |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP2006129650A (en) |
| CN (1) | CN100391087C (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6012154B2 (en) * | 2011-10-14 | 2016-10-25 | 株式会社ミツバ | Brushless motor for electric power steering apparatus and manufacturing method thereof |
| KR20180060817A (en) * | 2016-11-29 | 2018-06-07 | 엘지이노텍 주식회사 | COVER ASSEMBLY, MOTOR and ELECTRONIC POWER STEERING SYSTEM INCLUDING THE SAME |
| JP6572267B2 (en) * | 2017-07-24 | 2019-09-04 | ファナック株式会社 | Motor and machine tool having a shaft capable of limited movement |
| JP2019068611A (en) * | 2017-09-29 | 2019-04-25 | 日本電産株式会社 | Motor and sensor attachment structure |
| FR3131989A1 (en) * | 2022-01-14 | 2023-07-21 | Alstom Holdings | Electrical equipment with improved thermal tolerance, and associated vehicle |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1411122A (en) * | 2001-10-02 | 2003-04-16 | 株式会社三协精机制作所 | Motor, motor stator and mfg. method thereof |
| CN2574288Y (en) * | 2002-10-23 | 2003-09-17 | 广东美的集团股份有限公司 | Iron case motor |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2845668A1 (en) * | 1978-10-20 | 1980-04-30 | Bosch Gmbh Robert | ELECTRIC MACHINE |
| JPH0249356U (en) * | 1988-09-30 | 1990-04-05 | ||
| JP2543792Y2 (en) * | 1991-12-13 | 1997-08-13 | 国産電機株式会社 | Electric motor |
| JP3647424B2 (en) * | 2002-06-13 | 2005-05-11 | 山洋電気株式会社 | Inner rotor type motor |
| JP2004180383A (en) * | 2002-11-26 | 2004-06-24 | Aichi Electric Co Ltd | Stator and its manufacturing method |
-
2004
- 2004-10-29 JP JP2004316966A patent/JP2006129650A/en active Pending
-
2005
- 2005-10-28 CN CNB2005101192279A patent/CN100391087C/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1411122A (en) * | 2001-10-02 | 2003-04-16 | 株式会社三协精机制作所 | Motor, motor stator and mfg. method thereof |
| CN2574288Y (en) * | 2002-10-23 | 2003-09-17 | 广东美的集团股份有限公司 | Iron case motor |
Non-Patent Citations (1)
| Title |
|---|
| CN－2574288 Y 2003.09.17 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1767324A (en) | 2006-05-03 |
| JP2006129650A (en) | 2006-05-18 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US20030030345A1 (en) | Core, rotating machine using the core and production method thereof | |
| US6476533B2 (en) | Stator for starter motor | |
| JP5703604B2 (en) | Bus bar unit and motor | |
| CN100391087C (en) | Electromotor | |
| US7626304B2 (en) | Stator and motor, to which the stator is applied, and method of manufacturing the stator | |
| KR100975498B1 (en) | Permanent magnet synchronous motor | |
| JP3320714B2 (en) | Method for manufacturing a stator of an electric machine, preferably a three-phase alternator | |
| CN101420140A (en) | Rotor of rotary motor and production method thereof | |
| US4899432A (en) | Method for adjusting the axial play between the rotor and a motor | |
| US20080157620A1 (en) | Process For Mounting Magnets in an Electric Motor Rotor and Electric Motor Rotor | |
| US20020047480A1 (en) | Stator for an electric drive with a tubular insulator as lost casting mold | |
| JP2011182603A (en) | Rotor, method of manufacturing the same, and motor | |
| CN113014023A (en) | Housing unit for an electric machine | |
| CN111213306B (en) | Method for manufacturing iron core for rotating electrical machine | |
| CN102195372B (en) | Rotating motor and manufacturing method for the same | |
| CN103825377B (en) | Stator | |
| US7592725B2 (en) | Motor and manufacturing method therefor | |
| KR20190140046A (en) | Electric motors for use in pressurized fluid environments | |
| CN201234198Y (en) | Rotor, compressor and device for brushless DC motor | |
| CA1139815A (en) | Edgewise coiled metal strip core for dynamoelectric machine | |
| JP2010259249A (en) | Rotary electric machine | |
| US20040113510A1 (en) | Electrical machine | |
| JP2002272047A (en) | Motor and manufacturing method of the same, and compressor using the motor | |
| CN217741445U (en) | Servo motor and motor assembly fixture | |
| EP4009491B1 (en) | Injection-molded stepper motor |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: NIDEC SANKYO CORP. Free format text: FORMER NAME OR ADDRESS: SANKYO SEIKI MFG. SEISAKUSHO K.K. |
|
| CP01 | Change in the name or title of a patent holder |
Address after: Nagano Patentee after: Sankyo Seiki Seisakusho KK Address before: Nagano Patentee before: Sankyo Seiki Manufacturing Co., Ltd. |