CN207884413U - Motor - Google Patents
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- Publication number
- CN207884413U CN207884413U CN201820211841.0U CN201820211841U CN207884413U CN 207884413 U CN207884413 U CN 207884413U CN 201820211841 U CN201820211841 U CN 201820211841U CN 207884413 U CN207884413 U CN 207884413U
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- China
- Prior art keywords
- casing
- holding member
- stator core
- protrusion
- recess portion
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Abstract
The utility model provides a kind of motor comprising：The casing of tubular extends along central axis；Stator is contained in casing, and with the stator core being laminated in the axial direction by multiple electromagnetic steel plates；Rotor is configured at the radially inner side of stator, and can be rotated relative to stator；And holding member, it is configured between the axial both ends of stator core and the inner peripheral surface of the side wall of casing.Holding member has：Radial extension is contacted with the axial end face of the axial end portion of stator core；And axially-extending portion, it is clamped by the inner peripheral surface of the axial end portion of stator core and the side wall of casing.At least part of stator core is opposite across gap radially with the inner surface of casing.
Description
Technical field
The utility model is related to a kind of motors.
Background technology
It is commonly known in drive motor, by the magnetic interaction of rotor and stator motor radially generation electromagnetism
Exciting force.Since the electro-magnetic exciting force can generate radial vibration in the rotor and the stator.Also due to the vibration
Can be transmitted to the casing etc. for the tubular for keeping the stator, thus as the reason of generating vibration and noise in motor entirety it
One.
In this regard, in order to reduce vibration and the noise of motor, has investigated cut-out or reduce vibration from stator to casing
The structure of transmission.
For example, a kind of automotive dynamoelectric machine is disclosed in Japanese Unexamined Patent Publication 2010-239725 bulletins, vehicle rotation
Short space is arranged in rotating motor between stator and the intermediate bracket for covering the stator, and being configured in the short space can inhale
Receive the flaky material with flexibility of vibration.
Also, a kind of electric rotating machine is disclosed in Japanese Unexamined Patent Publication 2006-166554 bulletins, the electric rotating machine is in stator
Between casing, both ensured can fuel feeding by fluid passage, while configured with the vibration for making to be transmitted to casing from stator
The damping means of decaying.Damping means in Japanese Unexamined Patent Publication 2006-166554 bulletins have elasticity like that by resin or rubber
Material formed.
In addition, the structure as disclosed in above-mentioned document, when between stator and casing configured with by can absorb or
Can decay vibration flexible material constitute component in the case of, it is possible to cause the retentivity of stator because of the component
And decline.It is thereby possible to which motor integral rigidity is made to decline, and stator is caused to decline relative to the positioning accuracy of casing.
Utility model content
Stator can either be inhibited to decline energy again relative to the retentivity of casing the purpose of this utility model is that acquisition is a kind of
Enough motors for inhibiting vibration to be transmitted to casing from stator.
Motor involved by one embodiment of the utility model includes：The casing of tubular extends along central axis；It is fixed
Son is accommodated in the casing, and with the stator core being laminated in the axial direction by multiple steel plates；Rotor, quilt
It is configured at the radially inner side of the stator, and can be rotated relative to the stator；And at least one holding member, by with
It is placed between the end and the inner surface of the casing of at least axial side of the stator core.The holding member has：
Radial extension is contacted with the axial end face of the end of the stator core；And axially-extending portion, it is described
The end of stator core is clamped with the inner surface of the casing.At least part of the stator core and the casing
Inner surface is opposite across gap radially.
In said motor, holding member is configured in the inner surface at the axial both ends and casing of stator core respectively
Between.
In said motor, the axial length of axially-extending portion is 1.5 times or more of the thickness of the steel plate of stator core.
In said motor, holding member has the interconnecting piece for connecting the axially-extending portion and the radial extension.
The radially inner side of interconnecting piece is contacted with the peripheral part of the radially outer peripheral side of the end of stator core.
In said motor, holding member is made of magnetic material.
In said motor, holding member is made of metal material or resin material.
In said motor, holding member is made of material of the Young's modulus more than the Young's modulus of casing.
Holding member the part opposite with stator core have towards stator core it is outstanding first keep protrusion and
First keeps at least one party in recess portion.Stator core in the part opposite with holding member there is receiving first to keep protrusion
At least one party in iron core recess portion and the iron core protrusion being contained in the first holding recess portion.
In said motor, holding member the part opposite with casing have radially projecting second keep protrusion with
And second keep recess portion at least one party.There is receiving second to protect for the part opposite with holding member of the casing in inner surface
At least one party in holding the casing recess portion of protrusion and the casing protrusion that is contained in the second holding recess portion.
Further include the elastomeric element being configured between the inner surface of casing and stator core in said motor.
In said motor, holding member has：Main part is configured in the end of stator core and the interior table of casing
Between face；And rib, in the axial direction of stator core from main part to the end opposite side configured with the main part
End extends.
In said motor, holding member is in the end with the inner surface of casing and stator core respectively within the scope of complete cycle
The ring-type of portion's contact.
Holding member is made of ferroalloy, aluminium, aluminium alloy, polyamide, polyethylene terephthalate or polyacetals.
Motor involved by an embodiment according to the present utility model, can obtain such structure：It can either inhibit
Stator declines relative to the retentivity of casing can inhibit vibration to be transmitted to casing from stator again.
By the detailed description of the preferred embodiments of the present invention below, with reference to attached drawing, it can be more clearly understood that this
Above-mentioned and other feature, element, step, the features and advantages of utility model.
Description of the drawings
Fig. 1 is the outline structure that the motor involved by embodiment 1 is showed schematically using the section comprising central axis
Figure.
Fig. 2 is the stereogram for the outline structure for indicating holding member.
Fig. 3 is the outline structure with expression motor in axially vertical section of the motor involved by embodiment 2
Figure.
Fig. 4 is the outline structure with expression motor in axially vertical section of the motor involved by embodiment 3
Figure.
Fig. 5 is to indicate that the corresponding with Fig. 1 of outline structure of the motor involved by another embodiment is schemed.
Fig. 6 is that the corresponding with Fig. 2 of the outline structure for the holding member for indicating the motor involved by other embodiment is schemed.
Specific implementation mode
Hereinafter, the embodiment of the utility model is described in detail with reference to attached drawing.In addition, to the identical or phase in figure
Same label should be partly marked, and without its repeated explanation.Also, there is no strictly according to the facts for the size of the component parts in each figure
Ground shows the size for actually constituting component and the dimensional ratios etc. of each component parts.
In addition, in the following description, the direction of the centerline axis parallel with rotor is known as " axial direction ", it will be with central axis
Vertical direction is known as " radial direction ", will be known as " circumferential direction " along the direction of the circular arc centered on central axis.But it is not intended to
The direction of rotor and motor when in use involved by the utility model is limited by the definition of the direction.
Also, in the following description, the statement of " fixation ", " connection " and " installation " etc. (following is fixed etc.) is not only wrapped
Situation directly fixed etc. between component is included, further includes situation about being fixed etc. by other component.That is, in the following description, Gu
Fixed wait in statement includes the meanings such as the direct and indirect fixation between component.
[embodiment 1]
(overall structure)
The outline structure of motor 1 involved by embodiment 1 Fig. 1 shows the utility model.Motor 1 includes rotor 3, determines
Son 4, casing 51 and cover board 52.Rotor 3 is rotated relative to stator 4 centered on central axis P.In the present embodiment, horse
It is that rotor 3 is configured to so-called inner-rotor type motor to be rotated centered on central axis P in the stator 4 of tubular up to 1.
Rotor 3 includes axis 30, rotor core 31 and magnet 32.Rotor 3 is configured at the radially inner side of stator 4, Neng Gouxiang
Stator 4 is rotated.
In the present embodiment, rotor core 31 is the cylindrical shape extended along central axis P.Rotor core 31 is by thickness
Stacking multi-disc is formed as the electromagnetic steel plate (steel plate) of regulation shape and constitutes on degree direction.The axial Young mould of rotor core 31
Amount e.g. 200GPa~210GPa.
The axis 30 extended along central axis P is fixed with the state penetrated through in an axial direction in rotor core 31.Rotor as a result,
Iron core 31 is rotated together with axis 30.Also, in the present embodiment, circumferentially with defined on the peripheral surface of rotor core 31
Interval is configured with multiple magnet 32.In addition, magnet 32 can also be ringshaped magnet connected in the circumferential.
In the present embodiment, magnet 32 is the magnet of substantially semi-cylindrical, is had from the axial side of rotor core 31
End to the other side end length.That is, the axial length of magnet 32 is equal with the axial length of rotor core 31.Though not
Especially diagram, but the face in the outside of magnet 32 is in the radially magnetic pole with the poles N or the poles S of rotor 3.In present embodiment
In, it is the magnet 32 of the poles S in rotor core that the magnetic pole in the face in the outside, which is the magnetic pole in the magnet 32 of the poles N and the face in the outside,
It is alternately arranged in 31 circumferential direction.
Stator 4 is contained in casing 51.In the present embodiment, stator 4 is cylindrical in shape, and is configured with rotor in radially inner side
3.That is, stator 4 is arranged as opposed to rotor 3 radially.Rotor 3 is configured in the radially inner side of stator 4 with central shaft
It is rotated centered on line P.
Stator 4 includes stator core 41, stator coil 42 and bracket 43.In the present embodiment, stator core 41 is in
The cylindrical shape axially extended.Stator core 41 is formed as the electromagnetic steel plate of regulation shape by the way that multi-disc is laminated in a thickness direction
And it constitutes.Stator core 41 is, for example, segmentation iron core, round iron core, straight iron core.
Though being not particularly illustrated, there are stator core 41 the multiple teeth extended from the yoke of tubular to radially inner side (to omit
Diagram).Stator coil 42 is wound on the bracket 43 being made of insulating materials (for example, insulative resin material), the insulation material
Material is installed on the tooth of stator core 41.In addition, bracket 43 is configured in the axial both ends of the surface of stator core 41.
Casing 51 is cylindrical in shape, and is extended along central axis P.In the present embodiment, casing 51 is cylindrical, in inside
With the inner space S that can accommodate rotor 3 and stator 4.Casing 51 has cylindric side wall 51a and covering side wall 51a
Axial side end bottom 51b.The opening of the axial other side of casing 51 is covered by flat cover board 52.Casing 51
And cover board 52 is for example made of iron-containing material.The opening that the casing 51 of bottomed tube is covered by using cover board 52, in machine
The inside of shell 51 forms inner space S.Though being not particularly illustrated, cover board 52 is fixed on casing such as can utilize bolt
51, casing 51 can also be fixed on by the methods of being pressed into or being bonded.In addition, casing 51 and cover board 52 be not limited to it is iron-containing
Material can also be made of other materials such as aluminium (including aluminium alloy).As long as 52 linear expansion coefficient phase of casing 51 and cover board
Deng then can also being for example made of mutually different material.As long as that is, constituting the material linear expansion of casing 51 and cover board 52
Coefficient is equal, then is not particularly limited.
In the present embodiment, side wall 51a and bottom 51b is single part.It is configured on the bottom 51b of casing 51
It is the bearing 53 that can be rotated by the overhang bracket of the axial side of axis 30.Configured with the axial direction of axis 30 is another on cover board 52
The overhang bracket of side is the bearing 54 that can be rotated.Bearing 53,54 is any such as can also be ball bearing and sleeve bearing
The bearing of type.
Holding member 6 is configured between the inner peripheral surface (inner surface) of the side wall 51a of the peripheral surface and casing 51 of stator 4.
That is, holding member 6 is arranged respectively at end (hereinafter referred to as axial both ends) and the casing 51 of the axial both sides of stator core 41
Side wall 51a inner peripheral surface between.Holding member 6 is installed on the end of the axial both sides of stator core 41, and is fixed on machine
On the inner peripheral surface of the side wall 51a of shell 51.In addition, fixing means of the holding member 6 relative to the inner peripheral surface of the side wall 51a of casing 51
Such as can also be indentation, shrink fit, any fixing means such as be screwed and be adhesively fixed.
In the present embodiment, the end of the axial side in stator core 41 and the side wall 51a of casing 51 are configured at
Holding member (hereinafter referred to as the first holding member) between inner peripheral surface and the axial other side that is configured in stator core 41
Holding member (hereinafter referred to as the second holding member) shape having the same between the inner peripheral surface of the side wall 51a of end and casing 51
Shape.Thereby, it is possible to use two holding members of same mold manufacturing.It is mutually different with the shape of two holding members as a result,
Situation is compared, and the manufacturing costs such as die cost can be reduced.
As shown in Fig. 2, in the present embodiment, holding member 6 is in the axial end portion that can be mounted on stator core 41
Annular shape on peripheral surface.That is, in the present embodiment, holding member 6 be within the scope of complete cycle respectively with the interior table of casing 51
The ring-type of the axial end portion of face and stator core 41 contact.Thereby, it is possible to more firmly hold fixed by holding member 6
In the state of the complete cycle of sub- iron core 41, holding member 6 and stator core 41 are more firmly held in the interior table of casing 51
On the complete cycle in face.
Holding member 6 is by metal material (for example, the ferroalloys such as SUS or S45C, aluminium (including alloy) etc.) or resin material
(PA (polyamide), PBT (polyethylene terephthalate), PCM (polyacetals) etc.) is constituted.In this way, by certain by having
The material of the intensity of degree constitutes holding member 6, even if when being applied with power to holding member 6 via casing 51
By holding member 6 stator core 41 can be kept in the case where holding member 6 will not be damaged.
Also, holding member 6 can also be made of magnetic material, rather than by metal material as described above or resinous wood
Material is constituted.In the case where holding member 6 is made of magnetic material, in drive motor 1, can make to generate in the stator 4
Magnetic flux is also flowed to holding member 6 via stator core 41.Magnetic saturation, therefore energy are not likely to produce in stator core 41 as a result,
Enough realize the miniaturization of stator core 41.
Component 6 is preferably remained to be made of material of the Young's modulus more than the Young's modulus of casing 51.Thereby, it is possible to inhibit
The holding member 6 for being installed on stator core 41 deforms, and can be protected stator core 41 more securely by holding member 6
It holds on the inner peripheral surface of the side wall 51a of casing 51.In addition, in the present embodiment, the Young's modulus of holding member 6 is in stator iron
It is more than the axial Young's modulus of core 41.The Young's modulus of holding member 6 is preferably, for example, 206GPa ± 10% or so.
As shown in Figure 1 and Figure 2, holding member 6 has：It is contacted with the axial end face of the axial end portion of stator core 41
Radial extension 61；And the axial direction being clamped by the inner peripheral surface of the axial end portion of stator core 41 and the side wall 51a of casing 51
Extension 62.Moreover, holding member 6 has interconnecting piece 63.Interconnecting piece 63 is to maintain the cricoid position in component 6, connects diameter
To extension 61 and axially-extending portion 62.More particularly, radial extension 61 extends from interconnecting piece 63 towards radially inner side.Axis
It is axially extended to extension 62 from interconnecting piece 63.That is, radial extension 61 and axially-extending portion 62 connect in respective end
It connects.Radial extension 61 and the coupling part of axially-extending portion 62 are interconnecting pieces 63.In the present embodiment, radial extension
61, axially-extending portion 62 and interconnecting piece 63 are single parts.Holding member 6 has in the section comprising central axis P as a result,
There is the section of substantially L-shaped.
Radial extension 61 is contacted with the axial end face (axial end face) of the axial end portion of stator core 41.Axially prolong
Extending portion 62 is clamped by the inner peripheral surface of the peripheral surface of the axial end portion of stator core 41 and the side wall 51a of casing 51.In this implementation
In mode, the axial length of axially-extending portion 62 is 1.5 times or more of the thickness of the steel plate of stator core 41.In other words, axis
It is contacted to extension 62 with the part of the steel plate for being equivalent to 1.5 or more of stator core 41.Thereby, it is possible to pass through holding member
6 more firmly hold stator core 41.
As described above, radial extension 61 and axially-extending portion 62 are contacted with the axial end portion of stator core 41.Therefore,
The radially inner side of interconnecting piece 63 is contacted with the peripheral part of the radially outer peripheral side of the axial end portion of stator core 41.
Thereby, it is possible to relative to the axial end portion of stator core 41 on axially and radially to holding member 6 carry out
The mode of positioning configures holding member 6.Thereby, it is possible to easily radially and axially with respect to casing 51 to stator iron
Core 41 is positioned.To, by holding member 6, can either on axially and radially relative to casing 51 to stator core
41 are positioned, and can stator core 41 be held in casing 51.
By being configured between the axial end portion of stator core 41 and the inner peripheral surface of the side wall 51a of casing 51 as described above
Holding member 6, the peripheral surface of stator core 41 are opposite across gap 7 with the inner peripheral surface of the side wall 51a of casing 51.
That is, the axial both ends of stator core 41 are held in the side wall 51a of casing 51 by using holding member 6
Gap 7 can be arranged in circumferential surface between the inner peripheral surface of the side wall 51a of the peripheral surface and casing 51 of stator core 41.Pass through as a result,
Holding member 6, the area that the part of vibration is transmitted between stator core 41 and casing 51 become smaller, so as to inhibit vibration from
Stator core 41 is transmitted to casing 51.Also, by the way that gap 7 is arranged, the axial central portion in stator core 41 can be inhibited to produce
Raw vibration is transmitted to casing 51.That is, can prevent the central portion of stator core 41 from connecing with casing 51 by holding member 6
It touches.Thereby, it is possible to prevent the vibration of the maximum central portion of vibration in drive motor 1 in stator core 41 from directly being passed
It is delivered to casing 51.Thus, it is possible to reduce the vibration of motor 1.
Especially holding member 6 is arranged respectively at the interior of the axial both ends of stator core 41 and the side wall 51a of casing 51
Between circumferential surface.Positioning can either be accurately proceed to stator core 41 relative to casing 51 on axially and radially as a result,
Stator core 41 can be more firmly held again.
[embodiment 2]
The section of the motor involved by embodiment 2 is schematically illustrated in Fig. 3.Fig. 3 be motor with it is axially vertical
Section in show schematically rotor 3 and stator 104 structure figure.That is, omitting the magnet of rotor 3 in figure 3 and determining
The record of the stator coil of son 104 etc. simplifies the structure for showing rotor 3 and stator 104 respectively.
The structure of embodiment 2 and the difference of the structure of embodiment 1 are, in the axially-extending portion of holding member 106
It is provided on 162 inner peripheral surface from the inner peripheral surface towards radially inner side outstanding multiple first and keeps protrusion 162a, and fixed
Multiple iron core recess portion 141c that receiving first keeps protrusion 162a are provided on the peripheral surface of sub- iron core 141.Hereinafter, pair with implement
The identical structure of the structure of mode 1 marks same label and omits the description, only pair part different from the structure of embodiment 1 into
Row explanation.
As shown in figure 3, multiple teeth that stator core 141 has the yoke 141b of tubular and extends from yoke 141b to radially inner side
141a.Tooth 141a is configured at equal intervals in the circumferential.
With stator core 141 opposite part of the holding member 106 on the inner peripheral surface of axially-extending portion 162 has from institute
It states inner circumferential and keeps protrusion towards radially inner side (141 side of stator core) multiple (being in the present embodiment eight) first outstanding
162a.In the present embodiment, it is each first keep protrusion 162a shape with it is rectangular in axially vertical section.
First keeps the portion opposite with stator core 141 that protrusion 162a can be on the inner peripheral surface of axially-extending portion 162
Axial multiple positions are being set to respectively, an axial position can also be set to.
In the present embodiment, multiple first keep protrusion 162a on the inner peripheral surface of axially-extending portion 162 circumferentially etc.
Interval configuration.But multiple first keep protrusion 162a can also be on the inner peripheral surface of axially-extending portion 162 circumferentially with mutually not
Identical interval configuration.Also, more than two first keep protrusion 162a can also be in the circumferential on the basis of central axis P
Line is symmetrical or point symmetry configure.
Stator core 141 the part opposite with axially-extending portion 162 of peripheral surface have it is multiple (in the present embodiment
It is eight) iron core recess portion 141c.The shape of each iron core recess portion 141c with it is rectangular in axially vertical section.Iron core recess portion
141c is set to the position corresponding with the first holding protrusion 162a on the peripheral surface of stator core 141.In each iron core recess portion
Each the first of receiving holding member 106 keeps protrusion 162a in 141c.
At the part opposite with axially-extending portion 162 that iron core recess portion 141c can be on the peripheral surface of stator core 141
Axial multiple positions are set to, an axial position can also be set to.
In the present embodiment, multiple iron core recess portion 141c circumferentially match at equal intervals on the peripheral surface of stator core 141
It sets.But multiple iron core recess portion 141c can also circumferentially be matched with mutually different interval on the peripheral surface of stator core 141
It sets.Also, more than two iron core recess portion 141c can also line be symmetrical or point symmetry on the basis of central axis P in the circumferential
Configuration.
As described above, in the present embodiment, the number of iron core recess portion 141c is eight, keep protrusion 162a's with first
Number is identical.But the number of iron core recess portion 141c can also keep the number of protrusion 162a more than first.
In addition, when from radial, the size on each side at the opening portion of iron core recess portion 141c can be more than or less than
First keeps the size on each side of protrusion 162a.When from radial, each side at the opening portion of iron core recess portion 141c
In the case that size ratio first keeps the size on each side of protrusion 162a small, protrusion 162a is kept by first by the methods of indentation
It is fixed in iron core recess portion 141c.Also, multiple first can also be accommodated in an iron core recess portion 141c and keeps protrusion 162a.
In this case, the number of iron core recess portion 141c can also keep the number of protrusion 162a few than first.
As described above, keeping protrusion 162a by accommodating first in iron core recess portion 141c, holding member 106 can be prevented
And stator core 141 relatively moves at least one of circumferential and axial direction.
In addition, in the present embodiment, on the inner peripheral surface of the axially-extending portion 162 of holding member 106 with stator iron
The opposite part of core 141 is provided with the first holding protrusion 162a, on the peripheral surface of stator core 141 and axially-extending portion
Cored recess portion 141c is arranged in 162 opposite parts.But it is also possible on the peripheral surface of stator core and axially-extending portion
Opposite part is arranged from the peripheral surface towards radial outside iron core protrusion outstanding, on the inner peripheral surface of axially-extending portion
Multiple first holdings for being recessed and accommodating the iron core protrusion towards radially inner side are arranged in the part opposite with the stator core
Recess portion.In this case, it is also preferred that the number of the first holding recess portion is identical as the number of iron core protrusion or first keeps recess portion
Number is more than the number of iron core protrusion.Also, it is preferred that first keeps the circumferential direction of recess portion and the position of axial direction and iron core protrusion
Circumferential and axial position is identical.It can also keep accommodating multiple iron core protrusions in recess portion at one first.In this case,
First keeps the number of recess portion can also be fewer than the number of iron core protrusion.
Also, can also cored recess portion be set in the part opposite with axially-extending portion on the peripheral surface of stator core
And both iron core protrusions, the part opposite with stator core on the inner peripheral surface of axially-extending portion are provided with the first holding
Both protrusion and first holding recess portion.
It is convex can also the part opposite with stator core in the radial extension of holding member to be provided with the first holding
Portion, the part opposite with radial extension on stator core are provided with the iron core recess portion that receiving first keeps protrusion.At this
In the case of, the first holding protrusion axially protrudes, and iron core recess portion is recessed in an axial direction.And, it is preferred that radial and circumferential
On, first keeps the position of protrusion identical as the position of iron core recess portion.In the same manner as described above, the preferred number of iron core recess portion and the
One keep protrusion number is identical or the number of iron core recess portion keeps the number of protrusion more than first.It can also be in an iron core
Receiving multiple first keeps protrusion in recess portion.In this case, the number of iron core recess portion can also keep of protrusion than first
Number is few.
Also, cored protrusion is arranged in the part opposite with radial extension that can also be on stator core, in radial direction
The part opposite with stator core on extension is provided with the first holding recess portion of receiving iron core protrusion.In this case, iron
Core protrusion axially protrudes, and the first holding recess portion is recessed in an axial direction.And, it is preferred that in radial direction and circumferential direction, iron core is convex
The position in portion keeps the position of recess portion identical with first.In the same manner as described above, preferably first keep the number of recess portion and iron core convex
The number in portion is identical or first keeps the number of recess portion more than the number of iron core protrusion.Recess portion can also be kept at one first
The interior multiple iron core protrusions of receiving.In this case, first keep the number of recess portion can also be fewer than the number of iron core protrusion.
Furthermore, it is also possible to which the part opposite with stator core in the radial extension of holding member is provided with the first guarantor
Both protrusion and first holding recess portion are held, the part setting opposite with radial extension on stator core is cored recessed
Both portion and iron core protrusion.
Can also be on the holding member comprising axially-extending portion, radial extension and interconnecting piece with stator core phase
To part, be provided with towards stator core it is outstanding first keep protrusion, it is opposite with holding member on stator core
Part is provided with the iron core recess portion that receiving first keeps protrusion.In this case, it is also preferred that the number of iron core recess portion is protected with first
Hold protrusion number is identical or the number of iron core recess portion keeps the number of protrusion more than first.Also, it is preferred that the week of iron core recess portion
To and axial position it is identical as the circumferential direction that first keeps protrusion and axial position.It can also be in an iron core recess portion
It accommodates multiple first and keeps protrusion.In this case, the number of iron core recess portion can also keep the number of protrusion few than first.
Also, can also be on the holding member comprising axially-extending portion, radial extension and interconnecting piece and stator
The opposite part of iron core is provided with the first holding recess portion, and the part opposite with holding member on stator core is provided with receiving
The iron core protrusion in recess portion is kept in first.In this case, it is also preferred that first keeps the number of recess portion with of iron core protrusion
Number is identical or first keeps the number of recess portion more than the number of iron core protrusion.Also, it is preferred that first keep recess portion circumferential direction and
Axial position is identical as the position of the circumferential direction of iron core protrusion and axial direction.It can also keep accommodating in recess portion at one first more
A iron core protrusion.In this case, first keep the number of recess portion can also be fewer than the number of iron core protrusion.
Furthermore, it is also possible on the holding member comprising axially-extending portion, radial extension and interconnecting piece and stator
The opposite part of iron core is provided with the first holding protrusion and first keeps both recess portions, on stator core with holding
Both cored recess portion and iron core protrusion is arranged in the opposite part of component.
First holding protrusion, the first holding recess portion, iron core protrusion and iron core recess portion can be one respectively, can also divide
It is not multiple.Also, first keeps protrusion, first to keep recess portion, iron core protrusion and iron core recess portion can respectively in the circumferential
It is arranged with multiple, can also be arranged in the axial direction respectively multiple.
Also, at least one party in the first holding protrusion and the first holding recess portion, which can be arranged, is being configured at stator core
Axial both ends holding member the two on, the end for the axial side for being configured at stator core can also be positioned only at
On holding member.
As long as storage iron core protrusion in recess portion can be kept first, and the first holding can be stored in iron core recess portion
Protrusion, then with axially vertical section, first keeps protrusion, first to keep recess portion, iron core protrusion and iron core recess portion each
From shape can the miscellaneous shape such as rounded or polygon, can also be in different shape.As long as also, energy
It is enough to keep storage iron core protrusion in recess portion first, and can store first in iron core recess portion and keep protrusion, then comprising
In the section of central axis P, first keeps protrusion, first to keep recess portion, iron core protrusion and the respective shape of iron core recess portion
It is not particularly limited.
In addition, above-mentioned first holding protrusion and iron core protrusion can also by be bonded or be pressed into etc. be embedded in it is above-mentioned
In iron core recess portion and the first holding recess portion.
[embodiment 3]
The section of the motor involved by embodiment 3 is schematically illustrated in Fig. 4.Fig. 4 be motor with it is axially vertical
Section in show schematically rotor 3 and stator 4 structure figure.That is, in Fig. 4, omitting the magnet and stator of rotor 3
The record of 4 stator coil etc., simplification show rotor 3 and stator 4.
The structure of embodiment 3 and the difference of the structure of embodiment 1 are, in the inner circumferential of the side wall 251a of casing 251
It is provided on face to radially inner side (stator core side) multiple casing protrusion 251c outstanding, is prolonged in the axial direction of holding member 206
Multiple second that receiving casing protrusion 251c is provided on the peripheral surface of extending portion 262 keep recess portion 262a.Hereinafter, pair and embodiment party
The identical structure of structure of formula 1 marks same label and omits the description, and only pair part different from the structure of embodiment 1 carries out
Explanation.
As shown in figure 4, multiple teeth that stator core 41 has the yoke 41b of tubular and extends from yoke 41b to radially inner side
41a.Tooth 41a is configured at equal intervals in the circumferential.As shown in figure 4, casing 251 on the inner peripheral surface of side wall 251a with it is axially extending
The opposite part in portion 262 has from the inner circumferential towards radially inner side multiple casing protrusion 251c outstanding.Each casing protrusion
251c is rectangular in the section vertical with central axis P.
With casing 251 opposite part of the holding member 206 on the peripheral surface of axially-extending portion 262 has receiving machine
Multiple the second of shell protrusion 251c keep recess portion 262a.Each casing protrusion 251c with it is rectangular in axially vertical section.
In present embodiment, the number of casing protrusion 251c keeps the number of recess portion 262a identical with second.In circumferential direction and axial direction,
The position of casing protrusion 251c keeps the position of recess portion 262a identical with second.Casing protrusion 251c is contained in the second holding recess portion
In 262a.
Thereby, it is possible to prevent holding member 206 at least one of circumferential and axial direction relative to casing 251
Side wall 251a inner peripheral surface relative movement.Thereby, it is possible to prevent stator 4 in circumferential direction and axial direction by holding member 206
At least one direction on relative to casing 251 relatively move.
In addition, in the present embodiment, on the inner peripheral surface of the side wall 251a of casing 251 with 262 phase of axially-extending portion
To part be provided with casing protrusion 251c, on the peripheral surface of the axially-extending portion 262 of holding member 206 with casing 251
Opposite part is provided with the second holding recess portion 262a.But it is also possible to prolonging with axial on the inner peripheral surface of the side wall of casing
The opposite part of extending portion is provided with casing recess portion, and the part opposite with casing on the peripheral surface of axially-extending portion is provided with receipts
Second be dissolved in casing recess portion keeps protrusion.In this case, it is also preferred that the number of casing recess portion keeps protrusion with second
Number is identical or the number of casing recess portion keeps the number of protrusion more than second.Also, it is preferred that the circumferential direction and axis of casing recess portion
To position with second keep protrusion circumferential direction and axial direction position it is identical.It can also be accommodated in a casing recess portion multiple
Second keeps protrusion.In this case, the number of casing recess portion can also keep the number of protrusion few than second.
Also, can also the part opposite with axially-extending portion on the peripheral surface of casing be provided with casing recess portion and
Both casing protrusions, the part opposite with the casing on the inner peripheral surface of the axially-extending portion are provided with the second holding
Both protrusion and second holding recess portion.
It can also be opposite with casing on the holding member comprising axially-extending portion, radial extension and interconnecting piece
Part is provided with the second holding recess portion, and the part opposite with holding member on casing, which is provided with, is contained in the second holding recess portion
Interior casing protrusion.In this case, it is also preferred that second keeps the number of recess portion identical as the number of casing protrusion or the second guarantor
The number for holding recess portion is more than the number of casing protrusion.Also, it is preferred that second keeps the circumferential direction of recess portion and position and the machine of axial direction
The circumferential direction of shell protrusion and the position of axial direction are identical.It can also keep accommodating multiple casing protrusions in recess portion at one second.
In this case, second keeps the number of recess portion can also be fewer than the number of casing protrusion.
Also, can also be on the holding member comprising axially-extending portion, radial extension and interconnecting piece and casing
Opposite part is provided with the second holding protrusion, and the part opposite with holding member on casing is provided with receiving second and keeps
The casing recess portion of protrusion.In this case, it is also preferred that the number of casing recess portion keeps the number of protrusion identical or casing with second
The number of recess portion keeps the number of protrusion more than second.Also, it is preferred that the circumferential direction of casing recess portion and the position and second of axial direction
The position of the circumferential direction and axial direction that keep protrusion is identical.Multiple second can also be accommodated in a casing recess portion keeps protrusion.
In this case, the number of casing recess portion can also keep the number of protrusion few than second.
Furthermore, it is also possible on the holding member comprising axially-extending portion, radial extension and interconnecting piece and casing
Opposite part is provided with the second holding protrusion and second keeps both recess portions, opposite with holding member on casing
Part is provided with both casing recess portion and casing protrusion.
Second holding protrusion, the second holding recess portion, casing protrusion and casing recess portion can be one respectively, can also divide
It is not multiple.Also, second keeps protrusion, second to keep recess portion, iron core protrusion and iron core recess portion can respectively in the circumferential
It is arranged with multiple, can also be arranged in the axial direction respectively multiple.
Also, at least one party in the second holding protrusion and the second holding recess portion, which can be arranged, is being configured at stator core
Axial both ends both holding members, the guarantor of the end for the axial side for being configured at stator core can also be positioned only at
It holds on component.
As long as storage casing protrusion in recess portion can be kept second, and the second holding can be stored in casing recess portion
Protrusion, then with axially vertical section, second keeps protrusion, second to keep recess portion, casing protrusion and casing recess portion each
From shape can the miscellaneous shape such as rounded or polygon, can also be in different shape.As long as also, energy
It is enough to keep storage casing protrusion in recess portion second, and can store second in casing recess portion and keep protrusion, then comprising
In the section of central axis P, second keeps protrusion, second to keep recess portion, casing protrusion and the respective shape of casing recess portion
It is not particularly limited.
In addition, above-mentioned second holding protrusion and casing protrusion can also by be bonded or be pressed into etc. be embedded in it is above-mentioned
In casing recess portion and the second holding recess portion.
[other embodiment]
More than, the embodiment of the utility model is illustrated, but above-mentioned embodiment is only intended to implement
The illustration of the utility model.It is not limited to above-mentioned embodiment as a result, it, can be right in range without departing from the spirit
Above-mentioned embodiment is suitably deformed to implement.
In each embodiment, the axial both ends of stator core 41,141 and casing 51,251 side wall 51a,
Holding member 6,106,206 is configured between the inner peripheral surface of 251a.But holding member can also be configured only in stator core side
Axial side end and casing side wall inner peripheral surface between.
In each embodiment, it is arranged respectively at axial both ends and the casing 51,251 of stator core 41,141
Holding member 6,106,206 between the inner peripheral surface of side wall 51a, 251a is identical.But configuration is axial on stator core
Holding member (the first holding member) and configuration between the end of side and the inner peripheral surface of the side wall of casing is on stator core
The axial other side end and casing side wall inner peripheral surface between holding member (the second holding member) cross sectional shape
Or shape can also be different.
For example, the method as assembling motor, it may be considered that following assemble method：First holding member is fixed on casing
Side wall inner peripheral surface on after, stator core is inserted into casing, later by the second holding member configuration on stator core
The axial other side end and the casing side wall inner peripheral surface between.In this case, when being inserted into stator core, by
In there is a possibility that the first holding member applied force, therefore, compared with the second holding member, need the first holding member
It is firmly fixed on the inner peripheral surface of the side wall of casing.In this case, by as described above by the first holding member
Be formed as different shapes from the second holding member, such as the inner peripheral surface with the side wall of casing in the first holding member can be made
The area of the part of contact increases etc. than the second holding member.
Also, stator core that can also between stator core and the inner peripheral surface of the side wall of casing and in the axial direction
Other holding member is configured between axial both ends.Thereby, it is possible to stator core is more firmly fixed at casing.
Moreover, as shown in figure 5, can also the side wall 51a of the peripheral surface and casing 51 of stator core 41 inner peripheral surface it
Between and the axial both ends of stator core 41 in the axial direction between configure elastomeric element 8.Elastomeric element 8 is by rubber or resin
It is constituted etc. flexible material.In this way, by configuring elastomeric element 8 in the side of the peripheral surface and casing 51 of stator core 41
Between the inner peripheral surface of wall 51a, the vibration of stator 4 can be absorbed by elastomeric element 8.Thereby, it is possible to more inhibit shaking for stator 4
It is dynamic to be transmitted to casing 51.
In each embodiment, holding member 6,106,206 is in annular shape.But holding member can have it
The removed shape of a part, can also be in arc-shaped when from end on observation.Also, the radial extension of holding member and
In axially-extending portion at least one on can also be in arc-shaped when from end on observation.As long as that is, the shape energy of holding member
The shape of the inner peripheral surface of enough side walls that the axial end portion of stator core is held in casing, then can be any shape.
Also, as shown in fig. 6, holding member 306 can also have the multiple (examples shown in Fig. 6 axially protruded
In be four) protruding portion 306b.That is, holding member 306 has main part 306a and protruding portion 306b.Main part 306a includes diameter
To extension 361, axially-extending portion 362 and interconnecting piece 363.When the peace of holding member 306 is loaded on stator core, maintaining part
The main part 306a and protruding portion 306b of part 306 are contacted with the peripheral surface of stator core.Thereby, it is possible to pass through holding member
306 more firmly hold stator core.In addition, protruding portion can be one, it can also be by protruding portion relative to main part
306a is arranged to annular shape.
In each embodiment, the magnet 32 of rotor 3 is configured on the peripheral surface of rotor core 31.But magnetic
Iron 32 can also be configured at the inside of rotor core 31.Also, the shape of magnet 32 is not limited to semi-cylindrical, can be rectangular
Body can also be polygon prism.In addition, in structure on the peripheral surface that magnet 32 is configured at rotor core 31, magnet 32 is in big
Semi-cylindrical is caused, but is configured at as described above in magnet 32 in the structure of the inside of rotor core 31, magnet 32 also may be used
With in a rectangular parallelepiped shape or polygon prism shape.
In each embodiment, motor is so-called permanent magnet motor.In permanent magnet motor, rotor has
Magnet.But motor 1, which can also be induction machine, magnetic resistance motor, switched reluctance motor and winding energization type motor etc., not to be had
There is the motor of magnet.
In each embodiment, stator core 41 is cylindrical, and casing 51 is in bottomed cylindrical.But stator iron
Then can also be the shape other than cylindrical shape as long as core is cylindrical in shape.As long as also, casing 51 is cylindrical in shape, then can also be to have bottom
Shape other than cylindrical shape.Even if in the case of the shape other than casing is in bottomed cylindrical, as long as holding member is in can
Shape stator core being held on the inner peripheral surface of the side wall of casing, then holding member can be in any shape.
In each embodiment, rotor core is cylindrical.But as long as rotor core is in multilateral shape
The tubulars such as the tubular in section can be in then any shape.
The utility model can be used in the motor that stator is held on the inner surface of casing.Embodiment of the present disclosure
Dust catcher, hair-dryer, ceiling fan, washing machine, refrigerator and electric motor driven power steering system etc. can be widely used in various
The various equipment of motor.
Claims (13)
1. a kind of motor comprising：
The casing of tubular extends along central axis；
Stator is accommodated in the casing, and with the stator core being laminated in the axial direction by multiple steel plates；
Rotor is configured in the radially inner side of the stator, and can be rotated relative to the stator；And
At least one holding member is configured in the interior of the end of at least axial side of the stator core and the casing
Between surface,
The motor is characterized in that,
The holding member has：
Radial extension is contacted with the axial end face of the end of the stator core；And
Axially-extending portion is clamped by the inner surface of the end of the stator core and the casing,
At least part of the stator core is opposite across gap radially with the inner surface of the casing.
2. motor according to claim 1, which is characterized in that
The holding member is configured in respectively between the axial both ends and the inner surface of the casing of the stator core.
3. motor according to claim 1 or 2, which is characterized in that
The axial length of the axially-extending portion is 1.5 times or more of the thickness of the steel plate of the stator core.
4. motor according to claim 1 or 2, which is characterized in that
The holding member has the interconnecting piece for connecting the axially-extending portion and the radial extension,
The radially inner side of the interconnecting piece is contacted with the peripheral part of the radially outer peripheral side of the end of the stator core.
5. motor according to claim 1 or 2, which is characterized in that
The holding member is made of magnetic material.
6. motor according to claim 1 or 2, which is characterized in that
The holding member is made of metal material or resin material.
7. motor according to claim 1 or 2, which is characterized in that
The holding member is made of material of the Young's modulus more than the Young's modulus of the casing.
8. motor according to claim 1 or 2, which is characterized in that
The holding member, which has in the part opposite with the stator core towards the stator core outstanding first, to be kept
At least one party in protrusion and the first holding recess portion,
The stator core has in the part opposite with the holding member accommodates the described first iron core recess portion for keeping protrusion
And it is contained in at least one party in the iron core protrusion in the first holding recess portion.
9. motor according to claim 1 or 2, which is characterized in that
The holding member in the part opposite with the casing there is radially projecting second to keep protrusion and the second guarantor
At least one party in recess portion is held,
With the holding member opposite part of the casing in inner surface, which has, accommodates the described second machine for keeping protrusion
At least one party in shell recess portion and the casing protrusion being contained in the second holding recess portion.
10. motor according to claim 1 or 2, which is characterized in that
The motor further includes the elastomeric element being configured between the inner surface of the casing and the stator core.
11. motor according to claim 1 or 2, which is characterized in that
The holding member has：
Main part is configured between the end of the stator core and the inner surface of the casing；And
Rib, in the axial direction of the stator core from the main part to the end opposite one configured with the main part
The end of side extends.
12. motor according to claim 1 or 2, which is characterized in that
The holding member is in the end with the inner surface of the casing and the stator core respectively within the scope of complete cycle
The ring-type of portion's contact.
13. motor according to claim 1 or 2, which is characterized in that
The holding member is made of ferroalloy, aluminium, aluminium alloy, polyamide, polyethylene terephthalate or polyacetals.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2017-027371 | 2017-02-16 | ||
| JP2017027371A JP2018133948A (en) | 2017-02-16 | 2017-02-16 | motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207884413U true CN207884413U (en) | 2018-09-18 |
Family
ID=63248713
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820211841.0U Active CN207884413U (en) | 2017-02-16 | 2018-02-07 | Motor |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP2018133948A (en) |
| CN (1) | CN207884413U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111082588A (en) * | 2018-10-19 | 2020-04-28 | 索恩格汽车部件（中国）有限公司 | Motor, damping component and end cover for motor |
| DE102021212361A1 (en) | 2021-11-03 | 2023-05-04 | Zf Friedrichshafen Ag | Stator with a stiffening ring and electric drive train with the stator |
-
2017
- 2017-02-16 JP JP2017027371A patent/JP2018133948A/en active Pending
-
2018
- 2018-02-07 CN CN201820211841.0U patent/CN207884413U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111082588A (en) * | 2018-10-19 | 2020-04-28 | 索恩格汽车部件（中国）有限公司 | Motor, damping component and end cover for motor |
| DE102021212361A1 (en) | 2021-11-03 | 2023-05-04 | Zf Friedrichshafen Ag | Stator with a stiffening ring and electric drive train with the stator |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2018133948A (en) | 2018-08-23 |
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