CN1829044A - Stator, motor, and method of manufacturing such stator - Google Patents

Stator, motor, and method of manufacturing such stator Download PDF

Info

Publication number
CN1829044A
CN1829044A CN 200610054944 CN200610054944A CN1829044A CN 1829044 A CN1829044 A CN 1829044A CN 200610054944 CN200610054944 CN 200610054944 CN 200610054944 A CN200610054944 A CN 200610054944A CN 1829044 A CN1829044 A CN 1829044A
Authority
CN
China
Prior art keywords
phase
tooth
ring
shaped winding
stator
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.)
Granted
Application number
CN 200610054944
Other languages
Chinese (zh)
Other versions
CN100508331C (en
Inventor
高桥忠伸
今井信幸
青木新
泷泽大二郎
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Honda Motor Co Ltd
Original Assignee
Honda Motor Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Honda Motor Co Ltd filed Critical Honda Motor Co Ltd
Publication of CN1829044A publication Critical patent/CN1829044A/en
Application granted granted Critical
Publication of CN100508331C publication Critical patent/CN100508331C/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Abstract

The invention provides a method, which overlay connects axially track rings (11), (12), (13) in order, to make the rings has the same axis with a shaft line (P). Arranging axially each claw-like induced poles (22), (24), (26). When the axial end-face of A phase rear yoke (21) contacts with the other axial end-face of B phase rear yoke (23), the base ends of claw-like induced poles (22), (24) arranged along the axis with proper interval, axially grip alpha phase ring winding (14) and fixed the winding. When the other axial end-face of B phase rear yoke (23) contacts with the axial end-face of D phase rear yoke (25), the base ends of claw-like induced poles (242), (26) arranged along the axis with proper interval, axially grip beta phase ring winding (15) and fixed the winding.

Description

The manufacture method of stator, motor and stator
Technical field
The present invention relates to the manufacture method of stator, motor and stator.
The priority of Japanese patent application 2005-306778 number that the application files an application for: Japanese patent application 2005-055670 number of filing an application on March 1st, 2005, Japanese patent application 2005-055671 number, Japanese patent application 2005-055672 number, Japanese patent application 2005-057141 number of filing an application on March 2nd, 2005, Japanese patent application 2005-057142 number, on October 21st, 2005, Japanese patent application 2005-306780 number is quoted its content herein.
Background technology
In the past, as existing salient pole type motor, be well known that: for example, will be along axis direction by the U phase, the track ring that V reaches the three-phase that W constitutes mutually mutually is configured to coincide together coaxially, on the winding installation portion of the ring-type that forms between the track ring adjacent on the axis direction, configuration produces the ring-shaped winding of the rotating magnetic field that makes the spill spin block rotation, have from the track ring body of each phase and induce the utmost point to radially outstanding claw-like, induce the utmost point along the claw-like of each phase of circumferential array in turn, and has the fixed block (for example, opening the 2005-20981 communique) that forms with the relative configuration of magnetic pole of fixed block with reference to the spy.
As existing three-phase motor, be well known that: for example, reach mutually by U phase, V in the stator core of each phase of the three-phase that W constitutes mutually at each, have by the winding of each phase of each three-phase is concentrated and roll the stator that installs around, by this stator three-phase drive rotor (for example, opening flat 7-227075 communique) with reference to the spy.
In addition, as three-phase motor, be well known that: have by making the winding rotation of each each phase that reaches the three-phase that W constitutes mutually by U phase, V mutually, make and be filled in the wheel between cog that makes progress in week adjacent, and hummock install around the stator of described winding, by this stator three-phase drive rotor (for example, opening the 2002-165396 communique) with reference to the spy.
In the salient pole type motor of an example of above-mentioned prior art, on U adjacent on the axis direction reaches winding installation portion between the V phase track ring mutually, dispose a U phase winding and a V phase winding, on V adjacent on the axis direction reaches winding installation portion between the W phase track ring mutually, dispose the 2nd V phase winding and W phase winding, thus, under the situation of the number of turns that compares each each phase, the number of turns of V phase is the twice that U reaches the number of turns of W phase mutually, and the value of the inductance of V phase becomes and to reach the value of each inductance of W phase mutually different for U.And, because this inductance loses association, produced the complicated problem of control content of salient pole type motor.
In the three-phase motor of above-mentioned prior art,,, produced the problem of the numerous and diverse operation of the action need of the winding that installs around each each phase so be difficult to suppress the increase of number of spare parts of the needed part of structure of stator because need the winding of each phase of each three-phase.
And, in the stator that winding is installed around by wave winding, be difficult to improve the stacking factor between adjacent tooth, and, can produce reduce the height of winding terminal and reduce the size of the axis direction of motor, be difficult to improve problem the lift-launch of vehicle etc.
Therefore, preferably cut down number of spare parts, the manufacturing process of stator is simplified, and improve the stacking factor of stator by the structure of simplifying stator, and reduce the height of winding terminal and reduce the size of the axis direction of motor, improve lift-launch to vehicle etc.
Summary of the invention
The present invention is the invention of In view of the foregoing making, and purpose is to provide the designs simplification that can make stator, and can prevent that the inductance that produces each phase from losing the stator of assisting.
In addition, the objective of the invention is to, a kind of stator and motor are provided, it can reduce number of spare parts by making designs simplification, and manufacturing process is simplified, and reduces the height of coil-end when improving the winding duty ratio, reduce the size of axis direction, improve lift-launch vehicle etc.
In order to reach the purpose that solves above-mentioned problem, first mode of stator of the present invention is characterised in that, comprising: the separate ring-shaped winding of two-phase; Tooth with three-phase.
In the stator of the manner, preferably the ring-shaped winding of described two-phase has 90 ° phase difference in mutual electric angle.
The stator of the manner preferably includes: possess the stator component of two-phase of the described tooth of the circumferential width that is equal to mutually, possess the single-phase stator component of described tooth of circumferential width of the twice of described circumferential width.
In the stator of the manner, preferably include: possess the described tooth of the circumferential width that is equal to mutually, stator component with two-phase of the shape that is equal to mutually; The single-phase stator component of described tooth of circumferential width that possesses the twice of described circumferential width.
In the stator of the manner, preferably include: the stator component of two-phase, it possesses the described tooth of the circumferential width that is equal to mutually, and in the form of a ring, shape is identical mutually; And single-phase stator component, it possesses the described tooth, in the form of a ring of circumferential width of the twice of described circumferential width, and described stator component and described ring-shaped winding can be configured to overlap with respect to axis coaxle ground alternately.
In the stator of the manner, preferably include: the stator component of two-phase, the described tooth that it possesses the circumferential width that is equal to mutually has the shape that is equal to mutually, in the form of a ring; And single-phase stator component, it possesses the described tooth of circumferential width of the twice of described circumferential width, in the form of a ring, be configured to from by the described ring-shaped winding of described two-phase it being clamped with the both sides of the direction of parallel axes, described stator component and described ring-shaped winding can be configured to overlap with respect to axis coaxle ground alternately.
In the stator of the manner, preferred described ring-shaped winding has the portion of crawling.
The stator of the manner, the ring-shaped winding of preferred described two-phase has the portion of crawling, and is configured to the mutual described portion of crawling outstanding on mutual relative direction, along circumferentially alternatively arrangement, and does not intersect mutually.
In the stator of the manner, the ring-shaped winding of preferred described two-phase, has the portion of crawling, coil span is counted 120 ° with electric angle, have and count 120 ° phase difference with mutual electric angle, be configured to the mutual described portion of crawling outstanding on mutual relative direction,, and do not intersect mutually along circumferentially alternatively arrangement.
The stator of the manner preferably includes: the stator component of two-phase, and it possesses the described tooth of the circumferential width that is equal to mutually; And single-phase stator component, it possesses the described tooth of circumferential width of the twice of described circumferential width, and the stator component of described three-phase has phase difference below 180 ° in mutual electric angle.
In the stator of the manner, preferably include: the stator component of two-phase, it possesses the described tooth of the circumferential width that is equal to mutually; And single-phase stator component, it possesses the described tooth of circumferential width of the twice of described circumferential width, and the stator component of described three-phase is with the phase difference of mutual electric angle in respect of 120 °.
In the stator of the manner, preferably include: the stator component of two-phase, the described tooth that it possesses the circumferential width that is equal to mutually can be divided into a plurality of stator pieces; And single-phase stator component, the described tooth of circumferential width that it possesses the twice of described circumferential width can be divided into a plurality of stator pieces.
The stator of the manner preferably includes: the stator component of each three-phase with tooth of each described three-phase; And cooling water pipe, it circulates coolant between the stator component of described ring-shaped winding and described three-phase.
In the stator of the manner, preferably include: the stator component of three-phase with tooth of each described three-phase; And cooling water pipe, it circulates coolant between the stator component of described ring-shaped winding and three-phase, and has along the tubular shape of the shape of described ring-shaped winding.
The stator of the manner preferably possesses the stator component of the three-phase of the tooth that has each described three-phase respectively; The ring-shaped winding that is configured to described two-phase is clamped single-phase described stator component from both sides; Comprise cooling water pipe, it is configured at least respectively between the ring-shaped winding and described single-phase stator component of each described two-phase one by one, makes the coolant circulation.
In the stator of the manner, the ring-shaped winding of preferred described two-phase has the portion of crawling, and is set at mutually the thickness in the part of the adjacency that makes progress in week, than the thin thickness of other parts.
In the stator of the manner, preferred described ring-shaped winding has the portion of crawling; In the described tooth on being installed in the described portion of crawling, have: with the axis direction of the axis almost parallel of described ring-shaped winding on adjacent first corner part form chamfer shape, second corner part to circumferentially outstanding enlarged portion; Described enlarged portion is set at along with the described corner part from described first leaves, and circumferential overhang changes to the tendency that increases.
The stator of the manner, preferred described ring-shaped winding has the portion of crawling; In the described tooth on being installed in the described portion of crawling, have: with the axis direction of the axis almost parallel of described ring-shaped winding on adjacent first corner part form chamfer shape, second corner part is to circumferentially outstanding enlarged portion; Described enlarged portion is set at along with the described corner part from described first leaves, and circumferential overhang changes to the tendency that increases; Between described second corner part and described enlarged portion, has slot part.
The stator of the manner, preferred described ring-shaped winding has the portion of crawling; Described each tooth is installed in the described portion of crawling, and along the base end part at least of radially described each tooth, is configured on the position that is offset on the axis direction with the axis almost parallel of mutual described ring-shaped winding; Adjacent described tooth forms end difference each other by making progress in the week in described ring-shaped winding.
In the stator of the manner, preferred described ring-shaped winding has the portion of crawling; Described each tooth is installed in the described portion of crawling, and along the base end part at least of radially described each tooth, is configured on the position that is offset on the axis direction with the axis almost parallel of mutual described ring-shaped winding; Have by the adjacent described tooth that makes progress in the week in described ring-shaped winding and form each other, dispose the end difference of described ring-shaped winding.
In the stator of the manner, preferred described ring-shaped winding has the portion of crawling; Described each tooth is installed in the described portion of crawling; Along the base end part at least of radially described each tooth, be configured in mutually on the position that is offset on the axis direction with the axis almost parallel of described ring-shaped winding; Have by the adjacent described tooth that makes progress in the week in described ring-shaped winding and form each other, dispose the end difference of the described portion of crawling of described ring-shaped winding.
In the stator of the manner, preferred described ring-shaped winding has the portion of crawling; Described each tooth is installed in the described portion of crawling, and along the base end part at least of radially described each tooth, is configured in mutually on the position that is offset on the axis direction with the axis almost parallel of described ring-shaped winding; Form end difference each other by the adjacent described tooth that makes progress in the week in described ring-shaped winding, in the side-play amount of the described tooth described axis direction each other that makes progress in week adjacent, roughly the same with the thickness of described ring-shaped winding.
In the stator of the manner, preferred described ring-shaped winding has the portion of crawling; Described each tooth is installed in the described portion of crawling, and along the base end part at least of radially described each tooth, is configured in mutually on the position that is offset on the axis direction with the axis almost parallel of described ring-shaped winding; Adjacent described tooth forms end difference each other by making progress in the week in described ring-shaped winding; The described tooth groove to each other of the ladder difference maximum of described end difference tilts with respect to described axis direction.
The stator of the manner, preferred described ring-shaped winding has the portion of crawling, and is installed in the described tooth in the described portion of crawling, and is set at the described tooth interval to each other that makes progress in the week of described ring-shaped winding adjacent unequal.
The stator of the manner, preferred described ring-shaped winding has the portion of crawling, be installed in the described tooth in the described portion of crawling, be set at, be and the corresponding value of bar number that is configured in described tooth described ring-shaped winding to each other at the described tooth interval to each other that makes progress in the week of described ring-shaped winding adjacent.
The stator of the manner preferably has the stator component that is equipped with described tooth; Described ring-shaped winding has the portion of crawling; Be installed in the described tooth of the regulation among the described tooth in the described portion of crawling, be set at from the rotor subtend portion of rotor subtend, along with towards the connecting portion that is connected on the described stator component, at the described tooth interval to each other that makes progress in the week of described ring-shaped winding adjacent, change to the tendency that increases.
The stator of the manner preferably has the stator component that is equipped with described tooth; Described ring-shaped winding has the portion of crawling; Be installed in the described tooth of the regulation among the described tooth in the described portion of crawling, be set at from the rotor subtend portion of rotor subtend, along with towards the connecting portion that is connected on the described stator component, width at the described tooth that makes progress in the week of described ring-shaped winding, change to the tendency that reduces, and with the axis direction of the axis almost parallel of described ring-shaped winding on the length of described tooth, change to the tendency that increases.
The stator of the manner, preferred described ring-shaped winding has the portion of crawling; Have from the leading section of described tooth circumferentially outstanding enlarged portion to described ring-shaped winding.
The stator of the manner, preferred described ring-shaped winding has the portion of crawling; Have from the leading section of described tooth circumferentially outstanding enlarged portion to described ring-shaped winding; With respect to the subtend portion that constitutes by described leading section and described enlarged portion, be set at the interval that makes progress in the week of described ring-shaped winding between the adjacent described tooth described subtend portion each other and become impartial.
In the stator of the manner, preferred described ring-shaped winding has the portion of crawling; Have from the leading section of described tooth circumferentially outstanding enlarged portion to described ring-shaped winding; Described enlarged portion, be set at along with along described ring-shaped winding circumferentially from the leading section of described enlarged portion towards base end part, the thickness along the described enlarged portion radially of described ring-shaped winding changes to the tendency that increases.
Second mode of stator of the present invention is characterised in that, comprising: a plurality of ring-shaped winding with the portion of crawling; And possess a plurality of stator pieces that are installed in the tooth in the described portion of crawling.
In the stator of the manner, the preferred described portion of crawling has the rectangular bend of general curved, and tortuous one-tenth crank-like; Described ring-shaped winding has a plurality of described portions of crawling.
In the stator of the manner, the preferred described portion of crawling has the obtuse-angulate bend of general curved, and complications shape in echelon; Described ring-shaped winding has a plurality of described portions of crawling.
In the stator of the manner, the mutual described portion of the crawling shape each other of preferred a plurality of described ring-shaped winding is similar.
In the stator of the manner, the mutual described portion of the crawling shape difference each other of preferred a plurality of described ring-shaped winding.
In the stator of the manner, preferably among a plurality of described ring-shaped winding, the described portion of crawling of the described ring-shaped winding of a part has the radially outstanding and crooked zigzag part to described ring-shaped winding.
Motor of the present invention comprises stator and rotor, and described stator has: the separate ring-shaped winding of being furnished with the two-phase of the portion of crawling; With the tooth that is installed in the three-phase in the described portion of crawling, described rotor has permanent magnet, wherein, along the base end part at least of radially described each tooth, is configured in mutually on the position that is offset on the axis direction with the axis almost parallel of described ring-shaped winding; Adjacent described tooth forms end difference each other by making progress in the week in described ring-shaped winding; Along the length of the described permanent magnet of described axis direction, shorter than the axial effective length of the tooth that is configured in the described three-phase on the described stator; Relative with the leading section of each tooth of described three-phase to the length along described axis direction of subtend portion of described rotor, along more than the length of the described permanent magnet of described axis direction, and below the axial effective length of the tooth of described three-phase.
The manufacture method of stator of the present invention is characterised in that, comprising: the winding arrangement step, will have a plurality of ring-shaped winding of the portion of crawling, and the position that is configured to the mutual described portion of crawling is at the relativity shift that makes progress in week; Tooth inserts operation, with the tooth of the part among a plurality of tooth of stator, inserts the tooth installation portion that is formed by a plurality of described ring-shaped winding along the direction of insertion of regulation; The tooth installation procedure, other the tooth with beyond the tooth of a described part is installed in the described portion of crawling along suitable installation direction.
In the manufacture method of stator of the present invention, preferably set described direction of insertion for the direction of the radially almost parallel of described ring-shaped winding; Set described installation direction for the direction of the axis almost parallel of described ring-shaped winding; Described direction of insertion and described installation direction approximate vertical.
In the manufacture method of stator of the present invention, preferably insert in the operation at described tooth, each is constituted the described tooth that a plurality of stator piece of described stator all possesses, insert described tooth installation portion, in described tooth installation procedure, each is constituted the described tooth that a plurality of stator piece of described stator all possesses, be installed in the described portion of crawling.
In the manufacture method of stator of the present invention, preferably insert in the operation at described tooth, by clamping described ring-shaped winding from both sides, make described ring-shaped winding be configured as the shape of regulation by the winding abutting part that tooth possessed and the winding guiding elements of a described part.
Stator according to the structure of above-mentioned first mode, the ring-shaped winding of the separate energising of the two-phase by having the even number phase, the inductance that can prevent each phase produces mistake association, and, the then rotating magnetic field of four phases of the minimum number of phases of three-phase can be produced, the structure complicated of the needed stator of rotating magnetic field can be prevented to be used to produce.
According to the stator of said structure, can prevent that the structure complicated of stator from also can produce the rotating magnetic field of four phases.
According to the stator of said structure, the structure complicated of stator can be prevented, and the rotating magnetic field of four phases can be produced, can drive rotor with the rotating torques of regulation.
According to the stator of said structure, can prevent that the structure complicated of stator from also can produce the rotating magnetic field of four phases.
According to the stator of said structure,, only just can easily make stator by such shirtsleeve operation along superimposed in turn with the direction of parallel axes and dispose the stator component of three-phase and the ring-shaped winding of two-phase mutually.
According to the stator of said structure, can prevent that the structure complicated of stator from also can produce the rotating magnetic field of four phases.
Stator according to said structure, under situation about having in the snakelike portion of mounting teeth on the ring-shaped winding, by for example setting outstanding mutual snakelike portion on the mutual relative direction of the ring-shaped winding of two-phase, make along circumferentially being disposed alternately, can prevent that mutual ring-shaped winding from position ground interfering to produce and intersect etc. each other, can prevent that the size of the axis direction of the height of coil-end and stator from increasing.
Stator according to said structure, become 120 ° short square in electric angle by the ring-shaped winding that makes two-phase, the distribution of the rotating magnetic field of three-phase is become with electric angle count per 120 ° phase difference, the control of can easily switching on, and the number that makes each cycle (counting 360 ° with electric angle) needed tooth of ring-shaped winding all forms mutually single at each, can suppress the increase of the sum of the tooth that stator possesses.
According to the stator of said structure, can prevent that the phase difference of the ring-shaped winding of two-phase from becoming below 180 °, ring-shaped winding position ground is each other interfered to produce and is intersected etc., can prevent that the size of the axis direction of the height of coil-end and stator from increasing.
Stator according to said structure, can make the distribution of the rotating magnetic field of the three-phase that generates by the ring-shaped winding of two-phase count per 120 ° phase difference with electric angle, the control of can easily switching on, and the number that makes each cycle (counting 360 ° with electric angle) needed tooth of ring-shaped winding all forms mutually single at each, can suppress the increase of the sum of the tooth that stator possesses.
According to the stator of said structure, can make the ring-shaped winding of two-phase or the stator component of three-phase form various shape as required.
According to the stator of said structure, and in the outside of stator, for example the situation of configuration cooling water pipe is compared the ring-shaped winding and the stator body of the pyrotoxin in the time of can directly cooling off as energising efficiently on the frame of housing stator etc.
Stator according to said structure, can make the cooling water pipe that has along the shape of the shape of ring-shaped winding near being disposed at ring-shaped winding, can suppress to produce uneven Temperature Distribution, and can cool off efficiently along length direction as the ring-shaped winding of the pyrotoxin in when energising.
According to the stator of said structure,, can suppress to produce uneven Temperature Distribution, and can cool off efficiently along the length direction of ring-shaped winding for each ring-shaped winding of two-phase.
According to the stator of said structure,, can under the state of keeping tooth interval to each other equably, guarantee desirable winding duty ratio no matter be installed in for example number of phases (being single-phase or two-phase) of the ring-shaped winding on the groove of circumferentially adjacent between cog.Thus, for example can prevent the decline that the interval owing to the between cog relative with rotor becomes the unequal breakdown torque that can export that causes, or cogging torque or torque pulsation increase, and can prevent the decline of winding duty ratio.
Stator according to said structure, owing to filling the ring-shaped winding that is configured along a plurality of between cog that circumferentially are configured, crooked smoothly along the chamfer shape of the corner part that is formed on tooth, so the insulation on surface that can suppress to be set at ring-shaped winding is by membrane damage.And, for corner part with chamfer shape, along with the corner part from a side leaves, be set at enlarged portion on the adjacent corner part of axis direction by formation, make it have along for example shape of the shape of the outer circumferential side of the ring-shaped winding of bending, circumferential overhang changes to increasing tendency ground, can enlarge the magnetic circuit area of tooth surface.
According to the stator of said structure, can prevent to produce the magnetic flux short circuit by enlarged portion.
Stator according to said structure, can dispose each tooth corresponding to the configuration status of the ring-shaped winding of the two-phase of snakelike portion with each tooth that three-phase is installed, the size that can prevent the axis direction of the height of coil-end and stator increases, and can prevent that the winding length increase from can reduce copper loss.For example, and under the state that is configured along the ring-shaped winding of the superimposed two-phase of axis direction, if with the set positions of the axis direction of each tooth of three-phase on the position that is equal to, then the width of the axis direction of stator becomes, at least on the width of the axis direction of each tooth, add the thickness (i.e. the thickness of four ring-shaped winding) of ring-shaped winding of each two-phase at the axis direction both ends that are configured in each tooth, and the value that becomes.To this, if can suitably set the position of axis direction of each tooth of three-phase, then the width of the axis direction of stator can be reduced to, on the width of the axis direction of each tooth, add the value of the thickness (i.e. the thickness of two ring-shaped winding) of the ring-shaped winding of two-phase.
According to the stator of said structure, be offset mutually by position at circumferentially adjacent tooth axis direction each other, in the ladder difference portion that forms therefrom, dispose ring-shaped winding, can prevent that the size of the axis direction of the height of coil-end and stator from increasing.
According to the stator of said structure, be offset mutually by position at circumferentially adjacent tooth axis direction each other, the portion of crawling of configuration ring-shaped winding in the ladder difference portion that forms therefrom can prevent that the size of the axis direction of the height of coil-end and stator from increasing.
Stator according to said structure, be offset mutually by position at circumferentially adjacent tooth axis direction each other, can be in the ladder difference portion that forms therefrom the single-phase ring-shaped winding of configuration, can prevent that the size of the axis direction of the height of coil-end and stator from increasing.
Stator according to said structure, compare with the situation that is provided with the groove that parallels with axis direction, by the groove for the axis direction inclination is set, with pitch of teeth, promptly set under the equally spaced state, can increase the width dimensions of groove, promptly can increase the size in the space that ring-shaped winding can be installed at the circumferential interval of circumferentially adjacent tooth position of centre of gravity each other.And, in the groove that tilts for axis direction, the cross sectional shape for the incline direction of groove can be set for roughly being rectangle of the cross sectional shape that the groove that parallels with axis direction is equal to.
Therefore, for example make the ring-shaped winding of two-phase become the situation of counting 120 ° short square with electric angle, even the number of phases in the ring-shaped winding of installing on the groove of adjacent between cog that makes progress in week is under the unequal situation of single-phase or two-phase, the number of phases corresponding to the ring-shaped winding that is mounted, also there is no need to set the circumferential interval of tooth position of centre of gravity each other unequal, for the ring-shaped winding that is installed in each groove, can guarantee desirable winding duty ratio.Thus, can prevent: owing to the relative position of each for example relative with the rotor tooth unequal breakdown torque that can export that makes that becomes descends, cogging torque or torque pulsation increase.
And, there is no need to use ring-shaped winding with special cross sectional shape, can guarantee desirable winding duty ratio by the ring-shaped winding of the simple cross sectional shape that for example has rectangular wire etc.
According to the stator of said structure, dispose each tooth corresponding to the configuration status of the ring-shaped winding of the two-phase of snakelike portion with each tooth that three-phase is installed, can prevent the decline of winding duty ratio.For example, become in the ring-shaped winding that makes two-phase under the situation of the short square of counting 120 ° with electric angle, the number of phases of the ring-shaped winding of installing on the groove of adjacent between cog that makes progress in week is the unequal of single-phase or two-phase.Thus, by setting tooth interval to each other unequal,, can prevent the decline of winding duty ratio corresponding to the number of phases that is installed in the ring-shaped winding on the groove.
According to the stator of said structure,,, will set at circumferentially adjacent tooth interval to each other to changing along with the bar number increase of for example ring-shaped winding corresponding to the bar number that is configured in tooth ring-shaped winding to each other with increasing tendency.Thus, can prevent that the winding duty ratio that is installed in the ring-shaped winding on the circumferentially adjacent tooth groove to each other from descending.
Stator according to said structure, along stator radially, along with from the rotor subtend portion of tooth leading section connecting portion towards the tooth base end part, change by setting at circumferential adjacent tooth interval to each other to increasing tendency ground, the relative position of the rotor subtend portion relative with rotor is constant, just can with connecting portion that stator body is connected near suitably set tooth interval to each other, can prevent the decline of the breakdown torque that can export, or cogging torque or torque pulsation increase, and can prevent the decline of winding duty ratio.
Stator according to said structure, along stator radially, along with from the rotor subtend portion of tooth leading section connecting portion towards the tooth base end part, because the width at circumferential tooth is changed to reducing tendency ground, length at the tooth of axis direction is changed to increasing tendency ground, can be with the cardinal extremity face of setting for by whole magnetic flux of rotor subtend face by tooth.Thus, the increase of the conducting loss that the unitary current in the time of can preventing and produce desirable torque is suitable near the connecting portion of configuration ring-shaped winding, can suitably be set tooth interval to each other, can prevent the decline of winding duty ratio.
Stator according to said structure, corresponding to being installed in for example number of phases of the ring-shaped winding on the groove of circumferentially adjacent between cog, even be configured under the unequal situation at tooth interval to each other, for by the leading section of tooth and the subtend portion that constitutes of the outstanding enlarged portion in end in the past, by setting equalization at the interval between circumferentially adjacent tooth subtend portion each other, can prevent: owing to the unequal breakdown torque that can export of making that becomes of the interval between for example relative with rotor subtend portion descends, cogging torque or torque pulsation increase.
According to the stator of said structure, can prevent: owing to the unequal breakdown torque that can export of making that becomes of the interval between for example relative with rotor subtend portion descends, cogging torque or torque pulsation increase.
Stator according to said structure, the magnetic flux of the subtend face by the enlarged portion relative with rotor, the further connecting portion of the leading section by enlarged portion and tooth, base end part to tooth flows out, can prevent that between this magnetic flux that causes owing to magnetic saturation from reducing, can effectively utilize the magnetic field flux between each tooth of rotor and stator.
According to the stator of the structure of above-mentioned second mode, because the tooth that each stator piece possessed is installed in the portion of crawling of ring-shaped winding, so can easily constitute the stator of ring-type by a plurality of teeth.
According to the stator of said structure, set crank-like for by the portion of crawling with ring-shaped winding, can be on ring-shaped winding easily and precision form the portion of crawling of desired shape well.
According to the stator of said structure, become the ring-shaped winding of crank-like to compare with for example tortuous, in complications in echelon in the ring-shaped winding of shape, the winding coefficient of the inductance of ring-shaped winding is changed hardly and shorten winding length, can reduce copper loss.
Stator according to said structure, set similar shapes each other for by the mutual portion of crawling with a plurality of ring-shaped winding, can be on ring-shaped winding easily and precision form the portion of crawling of desired shape well, can prevent to be used to form the increase of a plurality of needed process numbers of ring-shaped winding.
Stator according to said structure, set different shapes each other for by the mutual portion of crawling with a plurality of ring-shaped winding, can prevent because the mutual portion of crawling grade intersected with each other and interfere on ground, position for example, can prevent that the size of the axis direction of the height of coil-end or motor from increasing.
According to the stator of said structure, by have to a side's of the zigzag part of the direction bending of almost parallel ring-shaped winding radially; With the opposing party's who does not possess zigzag part ring-shaped winding, can prevent because the mutual portion of crawling grade intersected with each other and interfere on ground, position for example, can prevent that the size of the axis direction of the height of coil-end or motor from increasing.
Stator according to said structure, with will be for example become situation about being equal to mutually to compare with the axial effective length of the tooth of three-phase along the length setting of the permanent magnet of axis direction, along with the length along the permanent magnet of axis direction becomes shorter than the axial effective length of the tooth of three-phase, by for example increasing along the length of circumferential permanent magnet or along the thickness of radially permanent magnet, the magnetic flux of the magnetic field flux between each tooth of the permanent magnet of rotor and stator is not changed, can reduce the weight of rotor.
According to the stator of said structure, the winding arrangement step is configured in a plurality of ring-shaped winding that have the portion of crawling on the circumferential assigned position, makes the roughly coaxial and mutual portion of crawling along circumferentially only being offset predetermined distance.Then, tooth inserts the direction of insertion of operation along regulation, with the tooth of the part of the regulation in a plurality of teeth of stator, is inserted into by a plurality of ring-shaped winding and is surrounded around the major general and in the tooth installation portion that forms.Then, the tooth installation procedure is along suitable installation direction, and other the tooth with in a plurality of tooth of stator is installed in the portion of crawling of a plurality of ring-shaped winding.
Thus, after a plurality of ring-shaped winding that will be for example be configured as the regulation shape in advance are configured on the relative position of mutual regulation, owing to disposed a plurality of teeth, so for the ring-shaped winding that is configured in circumferentially adjacent between cog, can easily guarantee desirable winding duty ratio, and can prevent that the height dimension of coil-end from excessively increasing.
Manufacture method according to above-mentioned stator, on the tooth installation portion that will form being surrounded on every side by a plurality of ring-shaped winding, from inserting the tooth of the part of regulation with the direction of the radially almost parallel of ring-shaped winding, in the portion of crawling that portion of crawling beyond the tooth installation portion is not surrounded promptly, from with the installation direction of the axis almost parallel of ring-shaped winding, promptly from the direction of insertion of the tooth of the part of the regulation direction of quadrature roughly, other tooth is installed.
Thus, for a plurality of ring-shaped winding that for example is configured as the regulation shape in advance, on the relative position of mutual regulation, disposes, can the manufacturing process of stator be simplified along the direction of the mutually noninterfere side by side tooth of the part of installation provision and other tooth, improve and make efficient.
Manufacture method according to above-mentioned stator, because each is constituted the tooth that a plurality of stator piece possessed of ring-type stator, be inserted into the tooth installation portion or be installed in the portion of crawling, even so under the mutually different situation of installation direction of the direction of insertion of tooth of for example part of regulation and other tooth, also can easily dispose a plurality of teeth.
Manufacture method according to above-mentioned stator, for a plurality of ring-shaped winding on the relative position that is configured in mutual regulation in advance, by when the tooth with a part inserts the tooth installation portion, making ring-shaped winding be configured as the regulation shape, ring-shaped winding is configured as along the suitable shape of the shape of tooth, can simplify the manufacturing process of stator, improve and make efficient.
According to stator of the present invention, the ring-shaped winding of the two-phase by having the even number phase, the inductance that can prevent each phase produces and loses association, and, can produce the then rotating magnetic field of four phases of the minimum number of phases of three-phase, can prevent the structure complicated of stator.
According to stator of the present invention, can drive rotor with the rotating torques of regulation.
According to stator of the present invention,, only just can easily make stator by such shirtsleeve operation along superimposed in turn with the direction of parallel axes and dispose the stator component of three-phase and the ring-shaped winding of two-phase mutually.
According to stator of the present invention, under situation about having in the snakelike portion of mounting teeth on the ring-shaped winding, by for example setting outstanding mutual snakelike portion on the mutual relative direction of the ring-shaped winding of two-phase, make along circumferentially being arranged alternately, can prevent because the mutual portion of crawling grade intersected with each other and on the position, interfering, can prevent that the size of the axis direction of the height of coil-end and stator from increasing.
According to stator of the present invention, can prevent because the mutual portion of crawling grade intersected with each other and on the position, interfering, can prevent that the size of the axis direction of the height of coil-end and stator from increasing.
According to stator of the present invention, energising control is become easily, and the sum that can suppress the tooth that stator possesses increase.
According to stator of the present invention, can prevent that the phase difference of the ring-shaped winding of two-phase from becoming below 180 °, ring-shaped winding position ground is each other interfered to produce and is intersected etc., can prevent that the size of the axis direction of the height of coil-end and stator from increasing.
According to stator of the present invention, can make the distribution of the rotating magnetic field of the three-phase that generates by the ring-shaped winding of two-phase count per 120 ° phase difference with electric angle, the control of can easily switching on, make the number of each cycle (counting 360 °) needed tooth of ring-shaped winding mutually all single, can suppress the increase of the sum of the tooth that stator possesses at each with electric angle.
According to stator of the present invention, can make the ring-shaped winding of two-phase or the stator component of three-phase form various shape as required.
According to stator of the present invention, the ring-shaped winding and the stator body of the pyrotoxin in the time of can directly cooling off as energising efficiently.
According to stator of the present invention, can suppress to produce uneven Temperature Distribution, and can cool off efficiently along length direction as the ring-shaped winding of the pyrotoxin in when energising.
According to stator of the present invention,, can suppress to produce uneven Temperature Distribution, and can cool off efficiently along the length direction of ring-shaped winding for each ring-shaped winding of two-phase.
According to stator of the present invention,, can under the state of keeping tooth interval to each other equably, guarantee desirable winding duty ratio no matter be installed in for example number of phases (being single-phase or two-phase) of the ring-shaped winding on the groove of circumferentially adjacent between cog.Thus, for example can prevent the decline that the interval owing to the between cog relative with rotor becomes the unequal breakdown torque that can export that causes, or cogging torque or torque pulsation increase, and can prevent the decline of winding duty ratio.
According to stator of the present invention, because ring-shaped winding is crooked smoothly along the chamfer shape of the corner part that is formed on tooth, so the insulation on surface that can suppress to be set at ring-shaped winding is by membrane damage.And, for corner part,, be set at enlarged portion on the adjacent corner part of axis direction by formation along with the corner part from a side leaves with chamfer shape, make circumferential overhang change to increasing tendency ground, can enlarge the magnetic circuit area of tooth surface.
According to stator of the present invention, can prevent to produce the magnetic flux short circuit by enlarged portion.
According to stator of the present invention, can dispose each tooth corresponding to the configuration status of the ring-shaped winding of the two-phase of snakelike portion with each tooth that three-phase is installed, the size that can prevent the axis direction of the height of coil-end and stator increases, and can prevent that the winding length increase from can reduce copper loss.
According to stator of the present invention, can prevent the decline of the breakdown torque that can export, or cogging torque or torque pulsation increase, unnecessary the use has the ring-shaped winding of special cross sectional shape, can guarantee desirable winding duty ratio by the ring-shaped winding that for example has simple cross sectional shapes such as rectangular wire.
According to stator of the present invention, can prevent to be installed in the decline of the winding duty ratio of the ring-shaped winding on the groove of circumferentially adjacent between cog.
According to stator of the present invention, can prevent the decline of the breakdown torque that can export, or cogging torque or torque pulsation increase, and can prevent the decline of winding duty ratio.
According to stator of the present invention, the increase of the conducting loss that the unitary current in the time of can preventing and produce desirable torque is suitable can prevent the decline of winding duty ratio.
According to stator of the present invention, can prevent: owing to the unequal breakdown torque that can export of making that becomes of the interval between for example relative with rotor subtend portion descends, cogging torque or torque pulsation increase.
According to stator of the present invention, the magnetic flux of the subtend face by the enlarged portion relative with rotor, the further connecting portion of the leading section by enlarged portion and tooth, base end part to tooth flows out, can prevent that between this magnetic flux that causes owing to magnetic saturation from reducing, can effectively utilize the magnetic field flux between each tooth of rotor and stator.
According to stator of the present invention, can easily constitute the stator of ring-type by a plurality of teeth.
According to stator of the present invention, can be on ring-shaped winding easily and precision form the portion of crawling of desired shape well.
According to stator of the present invention, become the ring-shaped winding of crank-like to compare with for example tortuous, in complications in echelon in the ring-shaped winding of shape, the winding coefficient of the inductance of ring-shaped winding is changed hardly and shorten winding length, can reduce copper loss.
According to stator of the present invention, can be on ring-shaped winding easily and precision form the portion of crawling of desired shape well, can prevent to be used to form the increase of a plurality of needed process numbers of ring-shaped winding.
According to stator of the present invention, can prevent because the mutual portion of crawling grade intersected with each other and interfere on ground, position for example, can prevent that the size of the axis direction of the height of coil-end or motor from increasing.
According to stator of the present invention, the magnetic flux of the magnetic field flux between each tooth of the permanent magnet of rotor and stator is not changed, can reduce the weight of rotor.
According to stator of the present invention, after a plurality of ring-shaped winding that will be for example be configured as the regulation shape in advance are configured on the relative position of mutual regulation, owing to disposed a plurality of teeth, so for the ring-shaped winding that is configured in circumferentially adjacent between cog, can easily guarantee desirable winding duty ratio, and can prevent that the height dimension of coil-end from excessively increasing.
Manufacture method according to stator of the present invention, for a plurality of ring-shaped winding that on the relative position of stipulating mutually, disposes, can the manufacturing process of stator be simplified along the direction of the mutually noninterfere side by side tooth of the part of installation provision and other tooth, improve and make efficient.
According to the manufacture method of stator of the present invention, even under the mutually different situation of installation direction of the direction of insertion of tooth of for example part of regulation and other tooth, also can easily dispose a plurality of teeth.
According to the manufacture method of stator of the present invention, ring-shaped winding is configured as along the suitable shape of the shape of tooth, the manufacturing process of stator is simplified, improve and make efficient.
Description of drawings
Fig. 1 is the exploded perspective view of structure of stator of the salient pole type of expression embodiments of the present invention.
Fig. 2 is the stereogram of major part of stator of the salient pole type of embodiments of the present invention.
Fig. 3 is the driving loop of stator that drives the salient pole type of embodiments of the present invention.
Fig. 4 A is the ideograph of stator of the salient pole type of embodiments of the present invention; Fig. 4 B, Fig. 4 C are four mutually the ideographs of stator of salient pole type that produce the rotating magnetic field that is equal to the stator of the salient pole type of embodiments of the present invention.
Fig. 5 is expression, as salient pole type motor for the stator of the salient pole type that possesses embodiments of the present invention, circulation has the experimental result of the experiment of the α phase current of sine-wave current of two-phase of the phase difference that has 90 ° mutually and β phase current, from the coordinate diagram of the variation of the wave height value of the torque of salient pole type motor output.
Fig. 6 is the major part stereogram of stator of salient pole type of the variation of embodiments of the present invention.
Fig. 7 is the exploded perspective view of structure of stator of salient pole type of the variation of expression embodiments of the present invention.
Fig. 8 is the major part stereogram of the stator of second execution mode of the present invention.
Fig. 9 is the major part exploded perspective view of the stator of second execution mode of the present invention.
Figure 10 is that the major part of the stator of second execution mode of the present invention is separated figure.
Figure 11 A is the schematic diagram of connection status of each ring-shaped winding of the stator of expression second execution mode, the 5th execution mode and the 6th execution mode shown in Figure 8, Figure 11 B is the schematic diagram of connection status of each ring-shaped winding of the stator of expression second execution mode of the present invention, the 5th execution mode and the 6th execution mode, and Figure 11 C is the schematic diagram of connection status of each winding of the stator of expression three-phase (U phase, V phase, W phase).
Figure 12 represents that each ring-shaped winding is interfered to the position each other and the schematic diagram of an example of the state of intersection.
Figure 13 is the major part exploded view of stator of first variation of second execution mode of the present invention.
Figure 14 has the stereogram of stator that circulation has the cooling water pipe of coolant.
Figure 15 has the exploded perspective view of stator that circulation has the cooling water pipe of coolant.
Figure 16 A is the schematic diagram of the state that installs around of each ring-shaped winding of stator of second variation of expression second execution mode of the present invention, and Figure 16 B is the schematic diagram of an example of the state that installs around of each ring-shaped winding of the thickness of expression regulation.
Figure 17 A is the schematic diagram of the state that installs around of each ring-shaped winding of stator of the 3rd variation of expression second execution mode of the present invention, Figure 17 B is that expression is roughly OBL each tooth, the schematic diagram of an example of the state that installs around of each ring-shaped winding relative with described each tooth with the cross sectional shape that radially R is relative.
Figure 18 is the stereogram of major part of stator of the 3rd variation of expression second execution mode of the present invention.
Figure 19 is the exploded perspective view of salient pole type stator of the 4th variation of expression second execution mode of the present invention.
Figure 20 A is the schematic diagram of the state that installs around of each ring-shaped winding of stator of the 4th variation of expression second execution mode of the present invention, Figure 20 B is that expression is roughly OBL each tooth, the schematic diagram of an example of the state that installs around of each ring-shaped winding relative with described each tooth with the cross sectional shape that radially R is relative.
Figure 21 is the schematic diagram of the configuration status of each tooth of salient pole type motor of the 4th variation of expression second execution mode of the present invention and permanent magnet.
Figure 22 is the exploded perspective view of salient pole type motor of the 5th variation of expression second execution mode of the present invention.
Figure 23 is the schematic diagram of the configuration status of each tooth of salient pole type motor of the 5th variation of expression second execution mode of the present invention and permanent magnet.
Figure 24 is the exploded perspective view of structure of the stator of expression the 3rd execution mode of the present invention.
Figure 25 is the major part stereogram of the stator of the 3rd execution mode of the present invention.
Figure 26 is the major part stereogram of stator of the variation of the 3rd execution mode of the present invention.
Figure 27 is the longitudinal section view of major part of the stator of the 4th execution mode of the present invention.
Figure 28 is the major part exploded perspective view of the stator of the 4th execution mode of the present invention.
Figure 29 is that expression will be at the schematic diagram of the set positions on the axis direction P of each tooth of three-phase at an example of the locational state that is equal to.
Figure 30 A is along radially from the base end part side direction leading section side of each tooth, observe the schematic diagram of major part of stator of first variation of the 4th execution mode of the present invention, Figure 30 B is along radially from the base end part side direction leading section side of each tooth, and observation will be at the schematic diagram of the set positions on the axis direction P of each tooth of three-phase in the major part of the locational stator that is equal to.
Figure 31 A is the A-A line sectional view shown in Figure 30 A, and Figure 31 B is the B-B line sectional view shown in Figure 30 B.
Figure 32 A is along radially from the base end part side direction leading section side of each tooth, observe the schematic diagram of major part of stator of second variation of the 4th execution mode of the present invention, Figure 32 B is along radially from the base end part side direction leading section side of each tooth, observes the schematic diagram of the major part of the stator that only is provided with the groove parallel with axis direction P.
Figure 33 is the stereogram of stator of second variation of the 4th execution mode of the present invention.
Figure 34 A observes U phase stator and the V schematic diagram of the groove between the stator mutually from axis direction P shown in Figure 33, and Figure 34 B is from incline direction PS observation U phase stator shown in Figure 33 and the W schematic diagram of the groove between the stator mutually.
Figure 35 is the exploded perspective view of the salient pole type motor of the 4th execution mode of the present invention.
Figure 36 blocks the major part of salient pole type motor of the 4th execution mode of the present invention and the stereogram represented.
Figure 37 A is and the circumferential relative major part sectional view of the rotor of embodiments of the present invention that Figure 37 B is a major part vertical view of observing the rotor of embodiments of the present invention from rotation O direction.
Figure 38 is the coordinate diagram of an example of the polar arc angle of rotor of expression the 4th execution mode of the present invention and torque density.
Figure 39 is the coordinate diagram of an example of the salient pole width of rotor of expression the 4th execution mode of the present invention and torque density.
Figure 40 is the longitudinal section view of major part of the stator of the 5th execution mode of the present invention.
Figure 41 is the exploded perspective view of major part of the stator of the 5th execution mode of the present invention.
(a) portion of Figure 42 is the longitudinal section view of major part of the stator of the 5th execution mode of the present invention, and (b) portion is the longitudinal section view of major part that the interval between each adjacent on circumferential C tooth is set at the stator of equal value.
Figure 43 is the axial, cross-sectional view of major part of stator of first variation of the 5th execution mode of the present invention.
Figure 44 is the axial, cross-sectional view of major part of stator of second variation of the 5th execution mode of the present invention.
Figure 45 is the schematic diagram of major part of stator of radially observing second variation of the 5th execution mode of the present invention.
Figure 46 A is the vertical view of stator of observing the 3rd variation of the 5th execution mode of the present invention from axis direction P, and Figure 46 B is the stereogram of stator of the 3rd variation of embodiments of the present invention.
Figure 47 A is the vertical view of stator of observing the 3rd variation of the 5th execution mode of the present invention from axis direction P, and Figure 47 B is the stereogram of stator of the 3rd variation of embodiments of the present invention.
Figure 48 is the stereogram of the salient pole type motor of the 5th execution mode of the present invention.
Figure 49 is the stereogram of major part of the stator of the 6th execution mode of the present invention.
For each operation that manufacture method comprised of the stator of the 6th execution mode of the present invention,
Figure 50 A is the state of each ring-shaped winding is disposed in expression by the winding arrangement step a schematic diagram, Figure 50 B is that expression is inserted the schematic diagram of operation with the state in the V phase tooth insertion cross part by tooth, and Figure 50 C is the schematic diagram that expression is installed in U phase tooth and W phase tooth by the tooth installation procedure state of U phase peristome and W phase peristome.
Figure 51 A is the schematic diagram of the configuration status of tortuous each ring-shaped winding that becomes crank-like of expression, and Figure 51 B is the tortuous schematic diagrames of the configuration status of each ring-shaped winding of shape in echelon of expression.
Figure 52 is the major part exploded perspective view of stator of first variation of the 6th execution mode of the present invention.
For each operation that manufacture method comprised of the stator of second variation of the 6th execution mode of the present invention,
Figure 53 A is the state of each ring-shaped winding is disposed in expression by the winding arrangement step a schematic diagram, Figure 53 B is that expression is inserted the schematic diagram of operation with the state in the V phase tooth insertion cross part by tooth, and Figure 53 C is the schematic diagram that expression is installed in U phase tooth and W phase tooth by the tooth installation procedure state of U phase peristome and W phase peristome.
For each operation that manufacture method comprised of the stator of the 3rd variation of the 6th execution mode of the present invention,
Figure 54 A is the state of each ring-shaped winding is disposed in expression by the winding arrangement step a schematic diagram, Figure 54 B is that expression is inserted the schematic diagram of operation with the state in the V phase tooth insertion cross part by tooth, and Figure 54 C is the schematic diagram that expression is installed in U phase tooth and W phase tooth by the tooth installation procedure state of U phase peristome and W phase peristome.
Figure 55 is the major part exploded perspective view of stator of the 4th variation of the 6th execution mode of the present invention.
Symbol description:
10: stator, 11:A phase track ring, 12:B phase track ring, 13:D phase track ring, 14: α phase ring-shaped winding (ring-shaped winding), 15: β phase ring-shaped winding (ring-shaped winding), 22:A phase claw-like induce the utmost point (tooth), 24:B phase claw-like to induce the utmost point (tooth), 26:D phase claw-like to induce the utmost point (tooth);
110: stator, 111:U phase track ring (stator component), 112:V phase track ring (stator component), 113:W phase track ring (stator component), 114:U phase ring-shaped winding (ring-shaped winding), 115:W phase ring-shaped winding (ring-shaped winding), the 131:U portion (portion of crawling) of crawling mutually, the 132:W portion (portion of crawling) of crawling mutually, 134,135: cooling water pipe, 136: chamfered section, 137: enlarged portion, 138: slot part, 140: the salient pole type motor, 141: rotor, 142: permanent magnet, 51:U phase track ring (stator component), 52:V phase track ring (stator component), 53:W phase track ring (stator component), 54:U phase ring-shaped winding (ring-shaped winding), 55:W phase ring-shaped winding (ring-shaped winding);
210: stator, 210a: stator body, 211:U phase track ring, 212:V phase track ring, 213:W phase track ring, 214:U phase ring-shaped winding (ring-shaped winding), 215:W phase ring-shaped winding (ring-shaped winding), 222:U phase tooth (tooth), 224:V phase tooth (tooth), 226:W phase tooth (tooth), the 231:U portion (portion of crawling) of crawling mutually, 231a:U phase transition part, 231b: transition part, the 232:W portion (portion of crawling) of crawling mutually, 232a:W phase transition part, 232b: transition part, 233: end difference, 250: the salient pole type motor, 251: rotor, 252: permanent magnet, 255: subtend portion;
310: stator, 311:U phase track ring, 312:V phase track ring, 313:W phase track ring, 314:U phase ring-shaped winding (ring-shaped winding), 315:W phase ring-shaped winding (ring-shaped winding), 322:U phase tooth (tooth), 322a: leading section (rotor subtend portion), 322b: base end part (connecting portion), 324:V phase tooth (tooth), 326:W phase tooth (tooth), 326a: leading section (rotor subtend portion), 326b: base end part (connecting portion), the 331:U portion (portion of crawling) of crawling mutually, the 332:W portion (portion of crawling) of crawling mutually, 341,342,343: enlarged portion, 360: the salient pole type motor, 351,352,353: subtend portion;
410: stator, 411:U phase stator piece (stator), 412:V phase stator piece (stator), 413:W phase stator piece (stator), 414:U phase ring-shaped winding (ring-shaped winding), 415:W phase ring-shaped winding (ring-shaped winding), 422a: protuberance (winding abutting part), 424:U phase tooth (tooth), 425:V phase tooth (tooth), 426:W phase tooth (tooth), the 431:U portion (portion of crawling) of crawling mutually, the 432:W portion (portion of crawling) of crawling mutually, 433: cross part (tooth installation portion), 435: bend, 441: zigzag part, 442: guiding elements (winding guiding elements).
Embodiment
First execution mode
Below, first execution mode for stator of the present invention describes with reference to the accompanying drawings.
The stator 10 of present embodiment, for example constituted with internal combustion engine and carried salient pole type motor on motor vehicle driven by mixed power as the drive source of vehicle, in the parallel motor vehicle driven by mixed power of the structure that for example in upright arrangemently internal combustion engine, salient pole type motor and transmission device is directly linked, at least the actuating force of any one party of internal combustion engine or salient pole type motor is passed to by transmission device on the driving wheel of vehicle.
In addition, if transmitted actuating force from driven wheel side to the salient pole type motor when vehicle deceleration, then the salient pole type motor plays a role as generator and produces so-called regenerative braking power, is electric energy (regeneration can) with the recover kinetic energy of car body.And, being passed under the situation of salient pole type motor in the output of internal combustion engine, the salient pole type motor also plays a role as generator and produces the generating energy.
Generation makes the stator 10 of the rotating magnetic field of rotor (not shown) rotation, Figure 1 and Figure 2 for example has: each is reached A phase track ring 11, B phase track ring 12, D phase track ring 13 that B reaches each phase of the three-phase that D constitutes mutually mutually mutually, is reached α phase ring-shaped winding 14 and the β phase ring-shaped winding 15 that β encircles the two-phase that constitutes mutually mutually by α by A.
A phase track ring 11 have be roughly circular A mutually the back yoke 21, with the A of hook shape mutually claw-like induce the utmost point (tooth) 22, described A phase claw-like induces the utmost point (tooth) 22 from this A position of the predetermined distance of upwards being separated by in week of the interior perimembranous of back yoke 21 mutually, inwardly the side is outstanding towards the footpath, and along with distolateral forward from base end side, the crooked and extension to a side of axis direction.
A phase claw-like is induced the utmost point 22, for example, roughly forms L word shape with circumferentially relative cross sectional shape, and forms the roughly oblong-shaped of circumferential width (that is, being equivalent to 90 ° width in the electric angle) Ca with regulation with radially relative cross sectional shape.
B phase track ring 12 have be roughly circular B mutually the back yoke 23, with the B of two hook shapes mutually claw-like induce the utmost point (tooth) 24, described B phase claw-like induces the utmost point (tooth) 24 from this B position of the predetermined distance of upwards being separated by in week of the interior perimembranous of back yoke 23 mutually, inwardly the side is outstanding towards the footpath, and, extend to the first direction and the second direction of axis direction along with distolateral forward from base end side.
B phase claw-like is induced the utmost point 24, for example, roughly form T word shape with circumferentially relative cross sectional shape, and form the roughly oblong-shaped of circumferential width (that is, being equivalent to 180 ° width) Cb (Cb=2Ca) of value of the twice of the circumferential width Ca with regulation in electric angle with radially relative cross sectional shape.
D phase track ring 13 has: for example have the shape identical with A phase track ring 11, roughly be circular D back yoke 25 mutually; With the D of hook shape mutually claw-like induce the utmost point (tooth) 26, described D phase claw-like induces the utmost point (tooth) 26 from this D position of the predetermined distance of upwards being separated by in week of the interior perimembranous of back yoke 25 mutually, inside side is outstanding towards the footpath, and along with distolateral forward from base end side, the crooked and extension to the opposing party of axis direction.
D phase claw-like is induced the utmost point 26, for example, roughly forms L word shape with circumferentially relative cross sectional shape, and forms the roughly oblong-shaped of circumferential width (that is, being equivalent to 90 ° width in the electric angle) Ca with regulation with radially relative cross sectional shape.
Each track ring 11,12,13, coaxial to be configured to axis P, by superimposed in turn, and induce the mode of the utmost point 22,24,26 to connect along axis direction along circumferentially arranging each claw-like in turn.At A back yoke (back yoke) 21 axial end and B mutually afterwards during the axial end butt of the second direction of yoke 23 mutually, both sides from axis direction, each claw-like that interval by prefabricated regulation on axis direction is configured induces the base end part of the utmost point 22,24 each other it to be clamped, and fixes α phase ring-shaped winding 14.At B axial end and the D of the first direction of back yoke 23 mutually afterwards during the axial end butt of yoke 25 mutually, both sides from axis direction, each claw-like that interval by prefabricated regulation on axis direction is configured induces the base end part of the utmost point 24,26 each other it to be clamped, and fixes β phase ring-shaped winding 15.
The α phase ring-shaped winding 14 of two-phase and β phase ring-shaped winding 15, for example shown in Figure 3, by the driving loop 30 that can switch on independently of each other for each ring-shaped winding 14,15, drive by the sine-wave current of two-phase that is had 90 ° phase difference mutually, produce and the identical rotating magnetic field of four phase stators of switching on the sine wave of mutual 90 ° phase difference.
Promptly, for example shown in Fig. 4 A, stator 10 has: the α phase ring-shaped winding 14 of two-phase and β phase ring-shaped winding 15, the A phase claw-like of two-phase that has a circumferential width of 90 ° in electric angle respectively induce the utmost point 22 and D phase claw-like to induce the utmost point 26, have a circumferential width of 180 ° in electric angle single-phase B phase claw-like is induced the utmost point 24, and this stator 10 is equal to each stator shown in for example Fig. 4 B or Fig. 4 C.
For example shown in Fig. 4 B, the stator of the salient pole type motor of four phases is connected to: each A phase, B phase, the C with four phases reaches D phase claw-like mutually and induces each A phase, B phase, the C of utmost point A, B, C, D to reach D phase track ring mutually to be configured to axis P coaxial, by superimposed in turn, and induce the utmost point along axis direction along circumferentially arranging each claw-like of four phases that has a circumferential width that is equal to mutually of 90 ° in electric angle in turn.Both sides from axis direction, each base end part that each claw-like that interval by prefabricated regulation on axis direction is configured is induced utmost point A, B each other, claw-like induce utmost point B, C each base end part each other, claw-like induces each base end part of utmost point C, D each other it to be clamped, fix and constitute each A phase ring-shaped winding a and a B phase ring-shaped winding b1, the 2nd B phase ring-shaped winding b2 and a C phase ring-shaped winding c1, the 2nd C phase ring-shaped winding c2 and D phase ring-shaped winding d.
In the stator of the salient pole type of four phases shown in this Fig. 4 B, if making at the B phase claw-like that makes progress in week adjacent induces utmost point B and C phase claw-like to induce utmost point C integrated, make each ring-shaped winding b1, b2, c1, the c2 sharing, then shown in Fig. 4 C, each A that possesses three-phase reaches BC mutually and reaches D phase claw-like mutually and induce utmost point A, BC, each A of D reaches BC mutually and reaches D phase track ring mutually and be configured to axis P coaxial, by superimposed in turn, and induce the utmost point along axis direction along circumferentially arranging the A phase claw-like that has a circumferential width of 90 ° in electric angle in turn, the BC phase claw-like that has 180 ° circumferential width in electric angle is induced the utmost point, and induce the utmost point in the D phase claw-like that electric angle has a circumferential width of 90 °.Both sides from axis direction, each claw-like that interval by prefabricated regulation on axis direction is configured induces each base end part of utmost point BC and D each other it to be clamped, fix each A phase ring-shaped winding a and a BC phase ring-shaped winding bc1, the 2nd BC phase ring-shaped winding bc2 and D phase ring-shaped winding d, constitute stator.
And, in the stator of the salient pole type of four phases shown in this Fig. 4 C, if make each ring-shaped winding bc1, bc2 sharing, the stator 10 of configuration example shown in Fig. 4 A then.
Driving loop 30 has: the bridge loop 31 that utilizes a plurality of transistorized switch elements and bridge joint; With smmothing capacitor 32, the pwm converter of pulse-width modulation (PWM).
Bridge loop 31 has a plurality of transistor A1H, A2H, B1H, B2H, A1L, A2L, B1L and B2L as switch element.These transistor A1H ..., B2L for example is IGBT (InsulatedGate Bipolar mode Transistor).
Between the current-collector emitter of transistor A1H, A2H, B1H, B2H, A1L, A2L, B1L and B2L, diode DA1H, DA2H, DB1H, DB2H, DA1L, DA2L, DB1L and DB2L have been disposed respectively.Each transistor A1H ..., the emitter of B2L and each diode DA1H ..., the anode of DB2L is connected.Each transistor A1H ..., each current-collector of B2L and each diode DA1H ..., the negative electrode of DB2L is connected.
The current-collector of each transistor A1H, A2H, B1H and B2H all is connected with direct current input and output terminal 30P.The emitter of transistor A1H is connected with the current-collector of transistor A1L.The emitter of transistor A2H is connected with the current-collector of transistor A2L.The emitter of transistor B1H is connected with the current-collector of transistor B1L.The emitter of transistor B2H is connected with the current-collector of transistor B2L.The emitter of each transistor A1L, A2L, B1L, B2L all is connected with direct current input and output terminal 30N.Smmothing capacitor 32 is connected between direct current input and output terminal 30P, the 30N.
Interchange input and output terminal 14 a side and the opposing party of α phase ring-shaped winding 14 1, 14 2With, β a side of ring-shaped winding 15 and the opposing party's interchange input and output terminal 15 mutually 1, 15 2On, what connected bridge loop 31 respectively exchanges input and output terminal 30A 1, 30A 2, 30B 1And 30B 2Herein, the interchange input and output terminal 30A in bridge loop 31 1Be connected with the emitter of transistor A1H and the current-collector of transistor A1L.Exchange input and output terminal 30A 2Be connected with the emitter of transistor A2H and the current-collector of transistor A2L.Exchange input and output terminal 30B 1Be connected with the emitter of transistor B1H and the current-collector of transistor B1L.Exchange input and output terminal 30B 2Be connected with the emitter of transistor B2H and the current-collector of transistor B2L.
On drive circuit 30, connected the nickel-hydrogen cell (battery) 33 that carries out the high pressure class of electric power payment with the salient pole type motor.
Drive the control command that loop 30 is accepted from control device (not shown), the driving of control salient pole type motor and regeneration action.For example when the driving of salient pole type motor,, will be transformed into the α cross streams electricity and the β cross streams electricity of the two-phase of phase difference from the direct current of battery 33 outputs, and offer the salient pole type motor with 90 ° based on torque instruction from control device output.On the other hand, when the regeneration action of salient pole type motor, will be transformed into direct current, battery 33 will be charged from the three-phase alternating current of salient pole type motor output.
Corresponding to each the transistor A1H that is input to bridge loop 31 from control device ..., the pulse of the door of B2L, promptly be used for driving each transistor A1H by pulse-width modulation (PWM) On/Off ..., the pulse of B2L, the power converter of controlling this drivings loop 30 moves.The task of this pulse, be the reflection (data) of the ratio of On/Off, be stored in the control device in advance.
The stator 10 of present embodiment has said structure.Then, the experimental result of experiment of sine-wave current (being α phase current and β phase current) that the two-phase of the phase difference that has 90 ° is mutually arranged for the salient pole type motor circulation that possesses this stator 10 is described.
In this experiment, for each the α phase ring-shaped winding 14 and the β phase ring-shaped winding 15 of two-phase, connect each the α phase current and the β phase current of sine-wave current of the two-phase of the phase difference have 90 ° mutually, detect from the variation of the torque of salient pole type motor output.Its experimental result as shown in Figure 5.
As shown in Figure 5, as can be seen, variation for the one-period (promptly counting 360 °) that has 90 ° each the α phase current of sine-wave current of two-phase of phase difference and β phase current mutually with electric angle, each α phase power and β phase power show the variation in two cycles, maintain setting from the peak value of the torque of salient pole type motor output.
As mentioned above, stator 10 according to present embodiment, the quilt of the two-phase by being furnished with the even number phase is each ring-shaped winding 14,15 of independent energising mutually, the inductance that can prevent each phase produces mistake association, and, the rotating magnetic field of four phases of the minimum number of phases of conduct after the three-phase can be created in, structure complicated of the needed stator 10 of rotating magnetic field can be prevented to be used to produce.
The variation of first execution mode
And, in the first embodiment, though the α phase ring-shaped winding 14 and the β phase ring-shaped winding 15 of two-phase only are circular, but be not limited to this, for example as Figure 6 and Figure 7, also can be in the side face of for example near axis, make that each ring-shaped winding 14,15 is tortuous to become crank-like and pitch of the laps, have a plurality of α portion 41 and β portion 42 of crawling mutually of crawling mutually respectively.
In this variation, the width of circumferential C of portion 41,42 of respectively crawling is that coil span for example is set to and counts 90 ° with electric angle, the portion 41,42 of respectively crawling is configured to give prominence to mutually different direction (promptly, being mutual relative direction, a side and the opposing party of axis direction P), α phase ring-shaped winding 14 and β phase ring-shaped winding 15 are configured on the position of relativity shift the feasible phase difference that has 90 ° in electric angle along circumferential C.Thus, each ring-shaped winding 14,15 of two-phase is configured to, the outstanding mutual portion of respectively crawling 41,42 on mutual relative direction alternatively arranges along circumferential C, and does not intersect mutually.
And, an A phase claw-like has been installed on α crawls portion 41 has mutually been induced the utmost point 22, a D phase claw-like has been installed on β crawls portion 42 has mutually been induced the utmost point 26, on circumferential C adjacent A phase claw-like induce the utmost point 22 and D mutually claw-like induce and disposed a B phase claw-like between the utmost point 26 and induce the utmost point 24.
Thus, being filled in last each the adjacent claw-like of circumferential C induces each ring-shaped winding 14,15 of the two-phase that disposes between the utmost point 22,24 and 24,26 to form short square.
Second execution mode
Below, second execution mode for stator of the present invention describes with reference to the accompanying drawings.
Same with execution mode one, the stator 110 of present embodiment, for example constituted with internal combustion engine and carried salient pole type motor on motor vehicle driven by mixed power as the drive source of vehicle, in the parallel motor vehicle driven by mixed power of the structure that for example in upright arrangemently internal combustion engine, salient pole type motor and transmission device is directly linked, at least the actuating force of any one party of internal combustion engine or salient pole type motor is passed to by transmission device on the driving wheel of vehicle.
If transmitted actuating force from driven wheel side to the salient pole type motor when vehicle deceleration, then the salient pole type motor plays a role as generator and produces so-called regenerative braking power, is electric energy (regeneration can) with the recover kinetic energy of car body.And, being passed under the situation of salient pole type motor in the output of internal combustion engine, the salient pole type motor also plays a role as generator and produces the generating energy.
Generation makes the stator 110 of the rotating magnetic field of rotor (not shown) rotation, for example shown in Figure 8, have: each is reached U phase track ring 111, V phase track ring 112, W phase track ring 113 that V reaches each phase of the three-phase that W constitutes mutually mutually mutually, is reached U phase ring-shaped winding 114 and the W phase ring-shaped winding 115 that W encircles the two-phase that constitutes mutually mutually by U by U.
Fig. 8 and shown in Figure 9 for example, U phase track ring 111 has and is roughly circular U back yoke 121 and U tooth 122 mutually mutually, described U phase tooth 122 is from this U be separated by position of predetermined distance of the circumferential C of interior perimembranous of back yoke 121 mutually, the first direction of side and axis direction P is outstanding in R radially, roughly forms oblong-shaped with the cross sectional shape that radially R is relative.The cross sectional shape relative with the circumferential C of the U phase track ring 111 that is made of back mutually yoke 121 of U and U phase tooth 122 roughly is L word shape.
Fig. 8 and shown in Figure 9 for example, V phase track ring 112 has and is roughly circular V phase yoke 123 and V tooth 124 mutually, described V phase tooth 124 is from the position of the predetermined distance of being separated by at the circumferential C of the interior perimembranous of this V phase yoke 123, the first direction of side and axis direction P and second direction are outstanding in R radially, roughly form oblong-shaped with the cross sectional shape that radially R is relative.The cross sectional shape relative with the circumferential C of the V phase track ring 112 that is made of V phase yoke 123 and V phase tooth 124 roughly is T word shape.
Fig. 8 and shown in Figure 9 for example, W phase track ring 113 has and is roughly circular W phase yoke 125 and W tooth 126 mutually, described W phase tooth 126 is from the position of the predetermined distance of being separated by at the circumferential C of the interior perimembranous of this W phase yoke 125, the second direction of side and axis direction P is outstanding in R radially, roughly forms oblong-shaped with the cross sectional shape that radially R is relative.The cross sectional shape relative with the circumferential C of the W phase track ring 113 that is made of W phase yoke 125 and W phase tooth 126 roughly is L word shape.
Each track ring 111,112,113 is connected to, and is for example shown in Figure 8, along superimposed each yoke 121,123,125 of axis direction P.Along circumferential C in accordance with regulations in turn (for example, in turn, U phase tooth 122, V phase tooth 124, W phase tooth 126, V phase tooth 124 etc.) arrange each tooth 122,124 and 126.Between each tooth 122,124 that circumferentially C is adjacent, formed the groove of configuration U phase ring-shaped winding 114.Between each tooth 124,126 that circumferentially C is adjacent, formed the groove of configuration W phase ring-shaped winding 115.
Each ring-shaped winding 114,115 has a plurality of U portion 131 and W portion 132 of crawling mutually of crawling mutually, described U crawl mutually portion 131 and W crawl mutually portion 132 be constitute by the rectangular wire that for example has specific thickness, be converted into crank-like and pitch of the laps in the side face introversion of near axis.
The width of circumferential C of portion 131,132 of respectively crawling is a coil span, and is for example shown in Figure 10, is set to electric angle and counts setting below 120 °.The portion 131,132 of respectively crawling is configured to give prominence to mutually different direction (promptly, being mutual relative direction, first direction and the second direction of axis direction P).U phase ring-shaped winding 114 and W phase ring-shaped winding 115 are configured on the position of relativity shift the feasible phase difference that has 240 ° in electric angle along circumferential C.Thus, each ring-shaped winding 114,115 of two-phase is configured to, the outstanding mutual portion of respectively crawling 131,132 on mutual relative direction alternatively arranges along circumferential C, and does not intersect mutually.
On crawling portion 131 mutually, disposed U one U phase tooth 122.On crawling portion 132 mutually, disposed W one W phase tooth 126.The adjacent U V phase tooth 124 that portion 131 and W crawl mutually and disposed between the portion 132 that crawls mutually on circumferential C.
Thus, being filled in each ring-shaped winding 114,115 that circumferential C goes up the two-phase that disposes between each adjacent tooth 122,124 and the tooth 124,126 has formed with electric angle and has counted short square below 120 °.
For example shown in Figure 11 A, have each ring-shaped winding 114,115 of two-phase of counting 240 ° phase difference (coil phase is poor) with electric angle mutually and be wired as V word shape, it is mutually the sine wave of 120 ° phase difference that circulation has.Thus, for example under the situation that can ignore leakage flux, shown in Figure 11 C, three phase windings that U phase, V reach the W phase mutually are wired as Y word shape, produce that to have with circulation be mutually the rotating magnetic field that 120 ° the stator of three-phase of sine wave of phase difference is equal to.
For example the state shown in Figure 11 B is, respectively crawling portion 131,132 under the outstanding state of the direction that is equal to (promptly, axis direction P first direction or second direction), be wired as V word shape having each ring-shaped winding 114,115 of two-phase of counting 60 ° phase difference with electric angle mutually; State shown in Figure 11 A is, respectively crawling portion 131,132 under the outstanding state of mutually different direction (promptly, axis direction P first direction and second direction), be wired as V word shape having each ring-shaped winding 114,115 of two-phase of counting 240 ° phase difference with electric angle mutually; Above-mentioned two states in the same manner, have when being mutually 120 ° phase difference sinusoidal wave in circulation, for example under the situation that can ignore leakage flux, shown in Figure 11 C, three phase windings that U phase, V reach the W phase mutually are wired as Y word shape, and can produce and circulate be mutually the rotating magnetic field that 120 ° the stator of three-phase of sine wave of phase difference is equal to.
That is, the voltage equation of the motor of three-phase is if for example ignore phase resistance, then by each phase voltage command value V u, V v, V w, with each phase current I u, I v, I w, with each mutually coefficient of self-inductance L, with coefficient of mutual inductance M, with the angular velocity of rotation ω of rotor, with induced voltage Ke, shown in following formula (1).
And in following formula (1), L=-2M ignores leakage magnetic flux.
V u V v V w = d dt L M M M L M M M L I u I v I w + ωKe sin ωt sin ( ωt - 2 3 π ) sin ( ωt + 2 3 π ) ≈ d dt L 2 - 1 - 1 - 1 2 - 1 - 1 - 1 2 I u I v I w + ωKe sin ωt sin ( ωt - 2 3 π ) sin ( ωt + 2 3 π )
…(1)
In above-mentioned formula (1), owing to can explain each phase current I by any two phase current u, I v, I wIf, for example by U phase current I uAnd W phase current I wExplain and cancellation V phase current I v, each phase voltage command value V then u, V v, V wVoltage between lines (the voltage between lines V that for example, U phase-V is alternate Uv(=V u-V v) with W mutually-voltage between lines V that V is alternate Wv(=V w-V v)), shown in following formula (2).
V uv V wv = 1 - 1 0 0 - 1 1 V u V v V w = 1 - 1 0 0 - 1 1 d dt L M M M L M M M L 1 0 - 1 - 1 0 1 I u I w + 1 - 1 0 0 - 1 1 ωKe sin ωt sin ( ωt - 2 3 π ) sin ( ωt + 2 3 π )
= d dt ( L - M ) 2 1 1 2 I u I w + ωKe 3 sin ( ωt + π 6 ) 3 cos ωt ≈ d dt L 3 1.5 1.5 3 I u I w + ωKe 3 sin ( ωt + π 6 ) 3 cos ωt
…(2)
In the voltage equation of the motor of the three-phase shown in the above-mentioned formula (1) (U phase, V phase, W phase), the pattern of for example removing the V phase composition is shown in following formula (3).
V u V w = d dt L M M L I u I w + ωKe sin ωt sin ( ωt + 2 3 π ) ≈ d dt L 1 - 0.5 - 0.5 1 I u I w + ωKe sin ωt sin ( ωt + 2 3 π )
…(3)
Pattern shown in the above-mentioned formula (3) is if make the direction counter-rotating (that is, making the direction of rotation counter-rotating of rotor) of the winding of W phase, shown in following formula (4).
V u V w = d dt L - M - M L I u I w + ωKe sin ωt - sin ( ωt + 2 3 π ) ≈ d dt L 1 0.5 0 . 5 1 I u I w + ωKe sin ωt - sin ( ωt + 2 3 π )
…(4)
Pattern shown in the above-mentioned formula (4) is if make the number of turn n of each winding change to ( 3) doubly, then shown in following formula (5).
V u V w = d dt 3 L - M - M L I u I w + ωKe 3 sin ( ωt ) - 3 sin ( ωt + 2 3 π ) ≈ d dt L 3 1.5 1.5 3 I u I w + ωKe 3 sin ( ωt ) - 3 sin ( ωt + 2 3 π )
…(5)
Pattern shown in the above-mentioned formula (5) only makes the angle initial point of the phase place of induced voltage move 90 degree (=pi/2), if replace the composition and W composition mutually of U phase, then shown in following formula (6), becomes identical with above-mentioned formula (2).
V u V w = d dt 3 L - M - M L I u I w + ωKe 3 sin ( ωt + π 6 ) 3 cos ωt ≈ d dt L 3 1.5 1.5 3 I u I w + ωKe 3 sin ( ωt + π 6 ) 3 cos ωt
…(6)
The stator 110 of present embodiment has above-mentioned structure.Then, describe for the manufacture method of this stator 110 with reference to the accompanying drawings.
At first, for example Fig. 9 and shown in Figure 20 makes the U phase ring-shaped winding 114 of two-phase and W phase ring-shaped winding 115 be configured as crank-like, makes coil span become setting below 120 ° in electric angle, forms a plurality of U portion 131 and W portion 132 of crawling mutually of crawling mutually.Then, make the portion of respectively crawling 131,132 outstanding, with each ring-shaped winding 114,115 of axis coaxle ground configuration towards the U phase ring-shaped winding 114 of two-phase and the mutual relative direction of W phase ring-shaped winding 115 (that is, the first direction of axis direction P and second direction).
To have towards the W phase track ring 113 of the outstanding a plurality of W phase tooth 126 of the first direction of axis direction P and be configured in assigned position with axis coaxle.
Then, W phase ring-shaped winding 115 is moved with respect to W phase track ring 113 towards first direction from the second direction of axis direction P, a plurality of W that a plurality of W phase tooth 126 of W phase track ring 113 is inserted W phase ring-shaped winding 115 relatively crawl in the portion 132 mutually.
Then, with the state of axis coaxle ground configuration under, V phase track ring 112 is moved with respect to W phase ring-shaped winding 115 towards first direction from the second direction of axis direction P, the V phase tooth 124 of the stated number (for example two) of V phase track ring 112 is inserted into W adjacent on the circumferential C of W phase ring-shaped winding 115 relatively crawls mutually between the portion 132.With the W phase yoke 125 of W phase track ring 113 and V mutually the V phase yoke 123 of track ring 112 along the superimposed connection of axis direction P.
Then, U phase ring-shaped winding 114 and W phase ring-shaped winding 115 are had mutually count 240 ° phase difference with electric angle, U phase ring-shaped winding 114 is configured on the position with respect to W phase ring-shaped winding 115 relativity shifts along circumferential C, under this state, U phase ring-shaped winding 114 is moved with respect to W phase ring-shaped winding 115 towards first direction from the second direction of axis direction P.Then, alternatively be arranged in the mutual portion of respectively crawling 131,132 outstanding on the mutual relative direction along circumferential C, and, do not dispose mutually each ring-shaped winding 114,115 of two-phase across, the U portion 131 of crawling mutually is inserted in circumferential C and goes up between the adjacent V phase tooth 124.
Then, with the state of axis coaxle configuration under, U phase track ring 111 is moved with respect to U phase ring-shaped winding 114 towards first direction from the second direction of axis direction P, each U that each U phase tooth 122 of U phase track ring 111 is inserted into U phase ring-shaped winding 114 relatively crawls in the portion 131 mutually, with the V phase yoke 123 of V phase track ring 112 and U mutually the U phase yoke 121 of track ring 111 along the superimposed connection of axis direction P.
Stator 110 according to second execution mode, count 240 ° or count 60 ° phase difference (coil phase is poor) with electric angle by having mutually with electric angle, be wired as each ring-shaped winding 114,115 of the two-phase of V word shape, for example three phase windings of U phase, V phase, W phase can produce the rotating magnetic field that is equal to mutually with the stator of the three-phase that is wired as Y word shape.Therefore, by reducing the number of phases of necessary winding, can reduce and constitute stator 110 needed part numbers, and can make the designs simplification of stator 110, can also prevent simultaneously that because the location conflicts of the transition part of each winding winding crosses one another and the size of the axis direction of the height of the coil-end that causes or motor too increases.
And, by along circumferential C, alternatively be arranged in the outstanding mutual portion of respectively crawling 131,132 on the mutual relative direction of each ring-shaped winding 114,115 of two-phase, for example shown in Figure 12, can prevent to produce each mutual ring-shaped winding 114,115 and position ground interfere and intersection etc. each other, can prevent that the size of the axis direction P of the height of coil-end and stator 110 from increasing.
And, just, can easily make stator 110 by shirtsleeve operation superimposed in turn along axis direction P and that dispose each ring-shaped winding 114,115 of each track ring 111,112,113 of three-phase and two-phase alternately.
First variation of second execution mode
In second execution mode, though with the width of the circumferential C of the portion of respectively crawling 131,132 of each ring-shaped winding 114,115 is that coil span is set in electric angle and counts setting below 120 °, but first variation for example shown in Figure 13, especially, count 120 ° by coil span being set in, can make at the adjacent U of the circumferential C of U phase ring-shaped winding 114 and crawl mutually between the portion 131 and single in crawl the mutually number of V phase tooth 124 of the V phase track ring 112 that relatively inserted between the portion 132 of the adjacent W of the circumferential C of W phase ring-shaped winding 115 with electric angle.
Thus, arrange W phase tooth 126, V phase tooth 124 and U tooth 122 mutually in turn along circumferential C, the magnet pole widths of the circumferential C of each tooth 126,124,122 becomes 120 ° in electric angle, and the contents processing of the control that can suppress to switch on is complicated.
In this case,, have and count 240 ° phase difference with electric angle, have and count 120 ° phase difference with electric angle in the circumferential adjacent W of the opposing party's side of the C portion 132 of crawling mutually in the circumferential adjacent W of side's side of the C portion 132 of crawling mutually for example for the U portion 131 of crawling mutually.
In second execution mode, Figure 14 and shown in Figure 15 for example, the stator 110 that is fixed on the frame 110a by stator support (not shown) has each ring-shaped winding 114,115 and cooling water pipe 134,135, and described cooling water pipe 134,135 makes coolant at superimposed each track ring 111,112,113 and circulating between the stator body that forms along axis direction P.Each cooling water pipe 134,135 has along the tubular shape of the shape of each ring-shaped winding 114,115.
For example, each ring-shaped winding 114,115 of configuration two-phase is clamped V phase track ring 112 from the both sides of rotation O direction, and the ring-shaped winding 114,115 that each cooling water pipe of two 134,135 is configured in each two-phase and V are mutually between the track ring 112.
For example the metal or the resin of aluminium by having big relatively heat conductivity etc. form each cooling water pipe 134,135.Can bending machining for example cross sectional shape be rectangular square tube, form each cooling water pipe 134,135, it is become along the shape of each ring-shaped winding 114,115 of complications.Perhaps, also can bending machining each for example cross sectional shape be circular a plurality of pipes, it is become along the shape of each ring-shaped winding 114,115 of complications, a plurality of pipes that are bent processing along R configuration radially constitute.
Thus, the outside of stator 110 is compared with the situation of the frame 110a that for example cooling water pipe is configured in housing stator 110 etc., each ring-shaped winding 114,115 and the stator body of the pyrotoxin in the time of can directly cooling off as energising efficiently.And, can make have along each cooling water pipe 134,135 of shape of the shape of each ring-shaped winding 114,115 near being disposed at each ring-shaped winding 114,115, can suppress to produce uneven Temperature Distribution, and can cool off efficiently along length direction as each ring-shaped winding 114,115 of the pyrotoxin in when energising.
Second variation of second execution mode
In second execution mode, though make each ring-shaped winding 114,115 have the thickness of regulation, but be not limited to this, for example as the first above-mentioned variation, coil span is being set under the situation of counting 120 ° with electric angle, at circumferential each adjacent tooth 122,124, each ring-shaped winding 114 that groove between 126 is installed, 115 the number of phases is under the unequal situation of single-phase or two-phase, with single-phase U each ring-shaped winding 114 of the groove of ring-shaped winding 114 or W phase ring-shaped winding 115 mutually is being installed, 115 thickness is compared, can be with each ring-shaped winding 114 at the groove of U phase ring-shaped winding 114 that two-phase has been installed and W phase ring-shaped winding 115,115 thickness setting gets thinner.
The stator 110 of this second variation, for example shown in Figure 16 A, groove in U phase ring-shaped winding 114 that two-phase has been installed and W phase ring-shaped winding 115, promptly by in U phase tooth 122 and the W groove that tooth 126 forms mutually, will set than the thin (W2＜W1 2 * W2) for example of the thickness W1 in each ring-shaped winding 114,115 of other positions at the thickness W2 of each ring-shaped winding 114,115 that week makes progress adjacent mutually.
For example shown in Figure 16 B, if each ring-shaped winding 114,115 only has the thickness W1 of regulation, then when guaranteeing desirable stacking factor for each groove, the number of phases corresponding to each ring-shaped winding 114,115 of on the groove between each adjacent on circumferential C tooth 122,124,126, installing, will be at the interval between each position of centre of gravity of each tooth 122,124,126 on the circumferential C, be that pitch of teeth (for example, each pitch of teeth C1, C2 shown in Figure 16 B) sets unequally (C2＞C1).To this, in second variation, even the number of phases of each ring-shaped winding 114,115 of installing on each groove between each adjacent on circumferential C tooth 122,124,126 is under the unequal situation of single-phase or two-phase, the number of phases corresponding to each ring-shaped winding 114,115 that is mounted, also there is no need to set the interval C0 between each position of centre of gravity of each tooth 122,124,126 unequal, for each ring-shaped winding 114,115 that is installed in each groove, can guarantee desirable stacking factor.Therefore, can prevent that owing to for example descending in the circumferential relative position of each tooth 122,124,126 of the C unequal breakdown torque that can export that makes that becomes, cogging torque or torque pulsation increase.
The 3rd variation of second execution mode
In second execution mode, though make and each tooth 122,124,126 the relative cross sectional shape of radially R is roughly oblong-shaped, each ring-shaped winding 114,115 tortuous one-tenth crank-like, but be not limited to this, for example shown in Figure 17 A, can be in the side face of near axis, for each tooth 122,124,126 corner part, on a side's adjacent on the axis direction P corner part, form the chamfered section 136 of chamfer shape, on the opposing party's corner part, have: along with to circumferentially outstanding and leave the enlarged portion 137 that circumferential overhang changes to the tendency that increases from a side corner part.
In the 3rd variation, be filled into along between each tooth 122,124,126 of circumferential configuration and the configuration each ring-shaped winding 114,115, because the chamfered section 136 along the corner part that is formed on each tooth 122,124,126 is crooked smoothly, for example shown in Figure 17 B, so be roughly on the corner part of OBL each tooth 122,124,126 with cross sectional shape that radially R is relative, compare with the situation of each ring-shaped winding 114,115 bending, the insulation on surface that can suppress to be set at each ring-shaped winding 114,115 is by membrane damage.
And, for corner part with chamfered section 136, the enlarged portion 137 that on corner part adjacent on the axis direction, is provided with, for example have along the shape of the shape of the outer circumferential side of each ring-shaped winding 114,115 of bending, along with the corner part from a side leaves, circumferential overhang changes to the tendency that increases.Thus, can enlarge the magnetic circuit area of tooth surface.
In the 3rd variation, for example shown in Figure 180, by between the corner part of each tooth 122,124,126 and enlarged portion 137, slot part 138 being set, can prevent to produce the magnetic flux short circuits by enlarged portion 137.
The 4th variation of second execution mode
Below, describe for the stator 110 of the 4th variation of second execution mode.
In the stator 110 of the 4th variation, for example shown in Figure 19 and Figure 20 A, the U phase ring-shaped winding 114 of two-phase and W phase ring-shaped winding 115, coil span is counted 120 ° with electric angle, has a plurality of U portion 131 and W portion 132 of crawling mutually of crawling mutually.The portion 131,132 of respectively crawling has four bends 139 that for example bend to the regulation obtuse angle, has two hypotenuses (for example, for axis direction P only tilt the hypotenuse of predetermined angular θ) of mutual symmetry in the side face of near axis.
Simultaneously, insert U crawl mutually portion 131 U phase tooth 122 and insert crawl the mutually cross sectional shape that W phase tooth 126 forms with radially R is relative of portion 132 of W and be roughly trapezoidal shape.The circumferential C that is inserted in U phase ring-shaped winding 114 go up adjacent U crawl mutually between the portion 131, and on the circumferential C of W phase ring-shaped winding 115 crawl mutually V phase tooth 124 between the portion 132 of adjacent W, form the shape that is roughly parallelogram with the cross sectional shape that radially R is relative.
Groove in U phase ring-shaped winding 114 that two-phase has been installed and W phase ring-shaped winding 115, promptly by in U phase tooth 122 and the W groove that tooth 126 forms mutually, will set than the thin (W2＜W1 2 * W2) for example of the thickness W1 in each ring-shaped winding 114,115 of other positions at the thickness W2 of each ring-shaped winding 114,115 that week makes progress adjacent mutually.
In the 4th variation, by each ring-shaped winding 114,115 of complications, for example shown in Figure 20 B, become each ring-shaped winding 114,115 of crank-like to compare with complications, the inductance of each ring-shaped winding 114,115 is changed, shorten winding length, reduce copper loss.
Promptly, shown in Figure 20 A, Figure 20 B, by along the length (a+b) of each ring-shaped winding 114,115 of circumferential C, (A+B) and, length d, the D of each ring-shaped winding 114,115 between each tooth 122,124,126, each ring-shaped winding 114,115 for complications, one pole length is (A+B+2 * D), for each ring-shaped winding 114,115 that is bent into crank-like, one pole length is (a+b+2 * d).
Herein, d=D * cos θ, and, a+b=A+B+2 * D * sin θ, and because (0 °＜θ＜90 °), (a+b+2 * d)=A+B+2 * D * (sin θ+cos θ)＞(A+B+2 * D).
For example shown in Figure 21, the rotor 141 of salient pole type motor 140 with stator 110 of the 4th variation is the permanent magnet formula rotors that utilize permanent magnet 142 as magnetic field, with a plurality of permanent magnets 142 in week upwards with the arranged spaced of regulation on the outer peripheral face of rotor body 43.
Dispose each permanent magnet 142, make for example to be magnetized diametrically, become rightabout mutually in the direction of magnetization of the adjacent permanent magnet 142,142 that makes progress in week.Promptly being configured to, is on the permanent magnet 142 of the N utmost point at outer circumferential side, the permanent magnet 142 of other that adjacent connection outer circumferential side is the S utmost point.
Be provided with surperficial yoke 44 on the outer peripheral face of each permanent magnet 142, described surperficial yoke 44 has formed the relative opposite face of leading section with each tooth 122,124,126 of stator 110.
For example shown in Figure 19, on the outer peripheral face of rotor body 43, each permanent magnet 142 is set to, for the rotation O direction of rotor 141 predetermined angular that only tilts, on stator 110, for the groove of U phase ring-shaped winding 114 that two-phase has been installed and W phase ring-shaped winding 115, promptly for by U phase tooth 122 and the W groove almost parallel that forms of tooth 126 mutually.
According to this salient pole type motor 140,, can suppress the generation of cogging torque or torque pulsation by increase the status number that grooves and permanent magnet 142 tilt in different directions as stator 110 integral body.
The 5th variation of second execution mode
In the 4th variation, though with each permanent magnet 142, with the U that two-phase has been installed mutually the groove of ring-shaped winding 114 and W phase ring-shaped winding 115 be set at almost parallel, but be not limited to this, Figure 22 and shown in Figure 23 for example, can will be set at: on stator 110, and single-phase the U groove that promptly formed by U phase tooth 122 and V phase tooth 124 of the groove of ring-shaped winding 114 or W phase ring-shaped winding 115 or the groove almost parallel that is formed by V phase tooth 124 and W phase tooth 126 mutually have been installed at each permanent magnet 142 on the outer peripheral face of rotor body 43.
According to the salient pole type motor 140 of the 5th embodiment, can be used as the status number that stator 110 whole increase grooves and permanent magnet 142 become the direction that roughly is equal to, the breakdown torque that can export is increased.
The 3rd execution mode
Below, the 3rd execution mode for stator of the present invention describes with reference to the accompanying drawings.
In the stator 50 of the 3rd execution mode, be with stator 110 differences of above-mentioned second execution mode: U ring-shaped winding 54 and W phase ring-shaped winding 55 does not mutually have each U portion 131 and W portion's 132 this point of crawling mutually of crawling mutually.
Below, simple or omit its explanation for the part identical with second execution mode.
Figure 24 and shown in Figure 25 for example, the stator 50 of present embodiment comprises: each is reached the U phase track ring 51, V phase track ring 52, W phase track ring 53 of each phase of the three-phase that W constitutes mutually mutually, is reached the U phase ring-shaped winding 54 and the W phase ring-shaped winding 55 of the two-phase that W constitutes mutually by U mutually by U phase, V.
U phase track ring 51 have be roughly circular U mutually back yoke 61 and hook shape U mutually claw-like induce the utmost point (tooth) 62, described U phase claw-like induces the utmost point (tooth) 62 from this U position of the predetermined distance of upwards being separated by in week of the interior perimembranous of back yoke 61 mutually, inwardly the side is outstanding towards the footpath, and along with distolateral forward from base end side, the crooked and extension to a side of axis direction.
U phase claw-like is induced the utmost point 62, for example, roughly form L word shape with circumferentially relative cross sectional shape, and form with radially relative cross sectional shape and to have the roughly oblong-shaped of counting circumferential width (for example, being equivalent to 120 ° the width) Cu of the regulation below 180 ° with electric angle at least in electric angle.
V phase track ring 52 have be roughly circular V mutually back yoke 63 and two hook shapes V mutually claw-like induce the utmost point (tooth) 64, described V phase claw-like induces the utmost point (tooth) 64 from this V position of the predetermined distance of upwards being separated by in week of the interior perimembranous of back yoke 63 mutually, inwardly the side is outstanding towards the footpath, and along with distolateral forward, to a side and the opposing party's extension of axis direction from base end side.
V phase claw-like is induced the utmost point 64, for example, roughly form T word shape with circumferentially relative cross sectional shape, and form with radially relative cross sectional shape and to have the roughly oblong-shaped of counting circumferential width (for example, being equivalent to 120 ° the width) Cv of the regulation below 180 ° with electric angle at least in electric angle.
W phase track ring 53 for example has the shape that is equal to of track ring 51 mutually with U, have be roughly circular W mutually back yoke 65 and hook shape W mutually claw-like induce the utmost point (tooth) 66, described W phase claw-like induces the utmost point (tooth) 66 from this W position of the predetermined distance of upwards being separated by in week of the interior perimembranous of back yoke 65 mutually, inwardly the side is outstanding towards the footpath, and along with distolateral forward from base end side, the crooked and extension to the opposing party of axis direction.
W phase claw-like is induced the utmost point 66, for example, roughly form L word shape with circumferentially relative cross sectional shape, and form with radially relative cross sectional shape and to have the roughly oblong-shaped of counting circumferential width (for example, being equivalent to 120 ° the width) Cw of the regulation below 180 ° with electric angle at least in electric angle.
Each track ring 51,52,53 is configured to axis P coaxially, by superimposed in turn, and induces the utmost point 62,64,66 along circumferentially arranging each claw-like in turn along axis direction.At U axial end and the V of back yoke 61 mutually afterwards during the opposing party's of yoke 63 axial end butt mutually, both sides from axis direction, each claw-like that interval by prefabricated regulation on axis direction is configured induces the base end part of the utmost point 62,64 each other it to be clamped, and fixes U phase ring-shaped winding 54.At a V side's of back yoke 63 axial end and W mutually afterwards during the axial end butt of yoke 65 mutually, both sides from axis direction, each claw-like that interval by prefabricated regulation on axis direction is configured induces the base end part of the utmost point 64,66 each other it to be clamped, and fixes W phase ring-shaped winding 55.
In this case, each track ring 51,52,53 has the phase difference (for example, in Figure 24 and stator 50 shown in Figure 25, counting 120 ° phase difference with electric angle) of counting the regulation below 180 ° with electric angle mutually.
Has each ring-shaped winding 54,55 of two-phase of counting 120 ° phase difference (coil phase is poor) with electric angle mutually, with each ring-shaped winding 114,115 of second execution mode shown in above-mentioned Figure 11 A in the same manner, be wired as V word shape, having by circulation is mutually the sine wave of 120 ° phase difference, for example under the situation that can ignore leakage flux, shown in Figure 11 C, three phase windings that U phase, V reach the W phase mutually are wired as Y word shape, produce that to have with circulation be mutually the rotating magnetic field that 120 ° the stator of three-phase of sine wave of phase difference is equal to.
In the 3rd execution mode, though with each claw-like induce circumferential width Cu, Cv, the Cw of the utmost point 62,64,66 to be set to have mutually be equal to be equivalent to 120 ° width in electric angle, but be not limited to this, with first execution mode in the same manner, for example shown in Figure 26, each circumferential width Cu, Cv, Cw can be set at least count the regulation below 180 ° with electric angle circumferential width (for example, Cu=Cw=90 ° [electric angle], Cv=180 ° [electric angle]), and, each circumferential width Cu, Cv, Cw's and become 360 ° in electric angle.
And, in second and third execution mode, each stator 110,50 has each track ring 111,112,113 or track ring 51,52,53, but is not limited to this, also each track ring 111,112,113,51,52,53 can be divided into a plurality of stator pieces and form.
Each that also can make each stator 110,50 has a plurality of stator pieces mutually, the ring-shaped winding 114,115 or the ring-shaped winding 54,55 of two-phase for the relative configuration status of regulation, a plurality of stator pieces is installed in assigned position, goes up the stator component that forms ring-type mutually by being fixed on each.
The 4th execution mode
Below, the 4th execution mode for stator of the present invention and motor describes with reference to the accompanying drawings.
And, for the stator 210 of present embodiment, U phase track ring 211, V phase track ring 212, W phase track ring 213, U phase ring-shaped winding 214, the W phase ring-shaped winding 215 that stator 210 is had, identical with the structure of the stator 110 of second execution mode, U phase track ring 111 that stator 110 is had, V phase track ring 112, W phase track ring 113, U phase ring-shaped winding 114, W phase ring-shaped winding 115, omit its explanation herein.
The U that is had for the U phase track ring 211 of present embodiment is back yoke 221, U phase tooth 222 mutually; The V that V phase track ring 212 is had is back yoke 223, V phase tooth 224 mutually; And the W that had of W phase track ring 213 back yoke 225, W phase tooth 226 mutually, also with the U of second execution mode mutually back yoke 121, U phase tooth 122, V mutually back yoke 123, V phase tooth 124, and W the structure of back yoke 125, W phase tooth 126 is identical mutually, omit its explanation herein.
In the present embodiment, each tooth 222,224,226 of each track ring 211,212,213 for example has the axial width that is equal to mutually, is configured in the position that is offset mutually at circumferential each adjacent tooth 222,224 and 224,226 of C on axis direction P.Thus, form end difference 233 each other by these each teeth 222,224 and 224,226.For example shown in Figure 27, for V phase tooth 224, U phase tooth 222 is configured in the position of one section of skew on side's side of axis direction P, and for V phase tooth 224, W phase tooth 226 is configured in the position of one section of skew on the opposing party's side of axis direction P.
Each ring-shaped winding 214,215 has: for example side face introversion around the axis is converted into crank-like and pitch of the laps, a plurality of U portion 231 and W portion 232 of crawling mutually of crawling mutually.
The width of circumferential C of portion 231,232 of respectively crawling is a coil span, and is for example shown in Figure 27, is set at electric angle and counts setting below 120 °.Set the portion 231,232 of respectively crawling, make to different mutually directions (promptly, being mutual relative direction, a side and the opposing party of axis direction P) outstanding, U phase ring-shaped winding 214 and W phase ring-shaped winding 215 are configured on the position of relativity shift the feasible phase difference that has 240 ° in electric angle along circumferential C.Thus, each ring-shaped winding 214,215 of two-phase is configured to, the outstanding mutual portion of respectively crawling 231,232 on mutual relative direction alternatively arranges along circumferential C, and does not intersect mutually.
On crawling portion 231 mutually, disposed the U of U phase ring-shaped winding 214 a U phase tooth 222 of U phase track ring 211.On crawling portion 232 mutually, disposed the W of W phase ring-shaped winding 215 a W phase tooth 226 of W phase track ring 213.The adjacent U portion 231 of crawling mutually crawls mutually with W and has disposed a V phase tooth 224 of V phase track ring 212 between the portion 232 on circumferential C.
For example shown in Figure 27, go up adjacent U crawl mutually the V phase tooth 224 between the portion 232 of portion 231 and W that crawls mutually for being configured in circumferential C, side's side (first side) that adjacent U phase tooth 222 relatively is configured in axis direction P goes up the position that is offset a section.Therefore, on the end difference 233 of first side that is formed at V phase tooth 224, disposed and be connected circumferential C and go up crawl the mutually U phase transition part 213a of U phase ring-shaped winding 214 of 231 in portion of adjacent U.Go up adjacent U crawl mutually the V phase tooth 224 between the portion 232 of portion 231 and W that crawls mutually for being configured in circumferential C, the opposing party's side (second side) that adjacent W phase tooth 226 relatively is configured in axis direction P goes up the position that is offset a section.Therefore, on the end difference 233 of second side that is formed at V phase tooth 224, disposed and be connected circumferential C and go up crawl the mutually W phase transition part 232a of W phase ring-shaped winding 215 of 232 in portion of adjacent W.
That is, arrange in turn: the U phase tooth 222 that is configured in the superimposed U phase of second side ring-shaped winding 214 of axis direction P and W phase ring-shaped winding 215 only along circumferential C; Dispose the V phase tooth 224 of W phase ring-shaped winding 215 in first side configuration U of axis direction P phase ring-shaped winding 214, in second side; The W phase tooth 226 that is configured in the superimposed U phase of first side ring-shaped winding 214 of axis direction P and W phase ring-shaped winding 215 only.At this moment, make U phase tooth 222 promptly not have a side of each ring-shaped winding 214,215 towards first side of axis direction P, relatively outstanding one section only with the single U height that is equal to of the thickness of ring-shaped winding 214 mutually, and, make W phase tooth 226 promptly not have a side of each ring-shaped winding 214,215 towards second side of axis direction P, relatively outstanding one section only with the single W height that is equal to of the thickness of ring-shaped winding 215 mutually.
Thus, by will on circumferential C, being configured in mutually on the position that is offset on the axis direction P by adjacent U phase tooth 222 and V phase tooth 224, formed first side and second side ladder difference portion 233 (promptly be formed at V phase tooth 224 first side ladder difference portion 233 be formed at the U ladder difference portion 233 of second side of tooth mutually), in described ladder difference portion 233, disposed crawl the mutually part (that is transition part 231b) of portion 231 of each the U phase transition part 231a of U phase ring-shaped winding 214 and U.By will on circumferential C, being configured in mutually on the position that is offset on the axis direction P by adjacent V phase tooth 224 and W phase tooth 226, formed first side and second side ladder difference portion 233 (promptly be formed at W phase tooth first side ladder difference portion 233 be formed at the V ladder difference portion 233 of second side of tooth 224 mutually), each W that in described ladder difference portion 233, has disposed W phase ring-shaped winding 215 part (that is transition part 232b) and W phase transition part 232a of portion 232 that crawl mutually.
Being filled in circumferential C goes up between each adjacent tooth 222,224 or each ring-shaped winding 214,215 of the two-phase that disposes between the tooth 224,226, prevent each tooth 222,224,226 and each ring-shaped winding 214,215 over-separation on axis direction P, formed simultaneously with electric angle and counted short square below 120 °.
With each ring-shaped winding 114,115 of second execution mode in the same manner, for example shown in Figure 11 A, have each ring-shaped winding 214,215 of two-phase of counting 240 ° phase difference (coil phase is poor) with electric angle mutually and be wired as V word shape, the sine wave that 120 ° phase difference is arranged mutually each other by circulation, for example under the situation that can ignore leakage flux, shown in Figure 11 C, three phase windings that U phase, V reach the W phase mutually are wired as Y word shape, produce and the rotating magnetic field that circulates and have mutually the stator of the three-phase of the sine wave of 120 ° phase difference each other to be equal to.
For example the state shown in Figure 11 B is, respectively crawling portion 231,232 under the outstanding state of the direction that is equal to (promptly, axis direction P a side or the opposing party), be wired as V word shape having each ring-shaped winding 214,215 of two-phase of counting 60 ° phase difference with electric angle mutually; State shown in Figure 11 A is, respectively crawling portion 231,232 under the outstanding state of mutually different direction (promptly, axis direction P a side and the opposing party), be wired as V word shape having each ring-shaped winding 214,215 of two-phase of counting 240 ° phase difference with electric angle mutually; Above-mentioned two states in the same manner, when circulation has mutually each other 120 ° phase difference sinusoidal wave, for example under the situation that can ignore leakage flux, shown in Figure 11 C, three phase windings that U phase, V reach the W phase mutually are wired as Y word shape, can produce the rotating magnetic field that is equal to the stator of the three-phase of the sine wave of 120 ° phase difference each other of circulating mutually.
The voltage equation of the motor of three-phase (U phase, V reach the W phase mutually) and second execution mode are in the same manner as described in the above-mentioned formula (1).
With second execution mode in the same manner, each phase voltage command value V u, V v, V wVoltage between lines (the voltage between lines V that for example, U phase-V is alternate Uv(=V u-V v) with W mutually-voltage between lines V that V is alternate Wv(=V w-V v)), shown in above-mentioned formula (2).
With second execution mode in the same manner, in the voltage equation of the motor of the three-phase shown in the above-mentioned formula (1) (U phase, V reach the W phase mutually), the model of for example removing the V phase composition is shown in above-mentioned formula (3).
With second execution mode in the same manner, the model shown in the above-mentioned formula (3) is if make the direction counter-rotating (that is, making the direction of rotation counter-rotating of rotor) of the winding of W phase, shown in above-mentioned formula (4).
With second execution mode in the same manner, the model shown in the above-mentioned formula (4) is if make the number of turn n of each winding change to ( 3) doubly, then shown in above-mentioned formula (5).
With second execution mode in the same manner, model shown in the above-mentioned formula (5) makes the angle initial point of the phase place of induced voltage only move 90 degree (=pi/2), if replace the composition and W composition mutually of U phase, then shown in above-mentioned formula (6), become identical with above-mentioned formula (2).
The stator 210 of the 4th execution mode has said structure.For the manufacture method of this stator 210, since identical with the stator 110 of second execution mode, so omit its explanation.
Stator 210 according to the 4th execution mode, configuration status corresponding to each ring-shaped winding 214,215 of each tooth 222,224,226 of three-phase and two-phase, the position of each tooth 222,224,226 by being set in axis direction P, the size that can prevent the axis direction of the height of coil-end and stator increases, and prevents that winding length from increasing and reduce copper loss.
For example shown in Figure 29, has a portion of respectively crawling 231 along axis direction P is superimposed, each ring-shaped winding 214 of 232 two-phase, 215 and under the state that is configured, if each tooth 222 with three-phase, 224, the set positions of 226 axis direction P is on the position that is equal to, then the width beta of the axis direction P of stator is: at least at each tooth 222,224, on the width of 226 axis direction P, add at tooth 222,224, each ring-shaped winding 214 of each two-phase of superimposed configuration on the end of 226 axis direction P, 215 thickness (promptly, the thickness of ring-shaped winding), and the value that obtains article four.
To this, as long as can suitably set the position of axis direction P of the tooth 222,224,226 of three-phase, just can make the width α (α＜β) of the axis direction P of stator 210, added the value of the thickness (that is the thickness of two ring-shaped winding) of each ring-shaped winding 214,215 of two-phase on the width of the axis direction P that is reduced at each tooth 222,224,226.
First variation of the 4th execution mode
In the 4th execution mode, though each tooth 222,224,226 is configured in the position that is offset mutually on axis direction P, but be not limited to this, for example shown in Figure 30 A and Figure 31 A, can will be connected the set positions of base end part at least of each tooth 222,224,226 on each yoke 221,223,225 in the position that mutually on axis direction P, is offset, to form the position of leading section of each tooth 222,224,226 of the rotor subtend portion relative, be set on the position that is equal to of axis direction P with rotor (not shown).
In first variation shown in Figure 31 A for example, the U phase tooth 222 that is configured in the superimposed U phase of second side ring-shaped winding 214 of axis direction P and W phase ring-shaped winding 215 only, formed rake 222c thereon, make along R radially, along with from leading section 222a towards base end part 222b, the axial width of U phase tooth 222 does not change, and the position of the U phase tooth 222 on axis direction P is not towards first side of axis direction P, promptly exist a side of each ring-shaped winding 214,215 to be offset gradually.
The W phase tooth 226 that is configured in the superimposed U phase of first side ring-shaped winding 214 of axis direction P and W phase ring-shaped winding 215 only, formed rake 226c thereon, make along R radially, along with from leading section 226a towards base end part 226b, the axial width of W phase tooth 226 does not change, the position of the W phase tooth 226 on axis direction P is not towards second side of axis direction P, promptly exist a side of each ring-shaped winding 214,215 to be offset gradually.
Formed the V phase tooth 224 that on first side of axis direction P, has disposed U phase ring-shaped winding 214, on second side, disposed W phase ring-shaped winding 215, make along R radially, along with from leading section towards base end part, the axial width of V phase tooth 224 does not change, and the position of the V phase tooth 224 on axis direction P does not change.
Thus, the cross sectional shape relative with the circumferential C of each U phase tooth 222 and W phase tooth 226 be parallelogram roughly, and the cross sectional shape relative with the circumferential C of V phase tooth 224 roughly is rectangle.
In first variation, for example shown in Figure 30 B and Figure 31 B, the position of the axis direction P of each tooth 222,224,226 of three-phase is set on the position that is equal to, compare with the width beta of the axis direction P of stator under this state, make the width α (α＜β) of the axis direction P of stator 210, added the value of the thickness (that is the thickness of two ring-shaped winding) of each ring-shaped winding 214,215 of two-phase on the width of the axis direction P that is reduced at each tooth 222,224,226.
And, owing to can will form the leading section of each tooth 222,224,226 of the rotor subtend portion relative with rotor (not shown), be set on the position that is equal to of axis direction P, so the position at axis direction P by each tooth 222,224,226 is offset mutually, can prevent that the axial width of rotor from increasing.
In the 4th execution mode, though with the width of the circumferential C of the portion of respectively crawling 231,232 of each ring-shaped winding 214,215 is coil span, be set in electric angle and count setting below 120 °, but for example shown in Figure 30 A and Figure 31 A, especially, count 120 ° by coil span being set in, can make 231 in the portion and single of crawling mutually in crawl the mutually number of V phase tooth 224 of the V phase track ring 212 that 232 quilts of portion relatively insert of the adjacent W of the circumferential C of W phase ring-shaped winding 215 at the adjacent U of the circumferential C of U phase ring-shaped winding 214 with electric angle.Thus, arrange W phase tooth 226, V phase tooth 224 and U tooth 222 mutually in turn along circumferential C, the circumferential magnet pole widths of each tooth 222,224,226 becomes 120 ° in electric angle, and the contents processing of the control that can suppress to switch on is complicated.
Second variation of the 4th execution mode
In the 4th execution mode, though each tooth 222,224,226 roughly form oblong-shaped for the cross sectional shape of R radially, but be not limited to this, as Figure 32 A and shown in Figure 33, for example coil span is being set under the situation of counting 120 ° with electric angle, at circumferential each adjacent tooth 222,224, each ring-shaped winding 214 that groove between 226 is installed, 215 the number of phases is under the unequal situation of single-phase or two-phase, groove 241 has been installed the U phase ring-shaped winding 214 and the W phase ring-shaped winding 215 of two-phase, can make the U phase tooth 222 and the W phase tooth 226 that form this groove 241, promptly along the size of the ladder difference portion 233 of axis direction P maximum U phase tooth 222 and W phase tooth 226, for example form and roughly be trapezoidal with the cross sectional shape that radially R is relative, formation has the inclined-plane 222A that tilts and be parallel to each other for axis direction P, 226A, U phase tooth 222 and W phase tooth 226 groove 241 to each other also can be set to for axis direction P tilt (for example, shown in Figure 33 incline direction PS tilt for axis direction P).
In second variation, each tooth 222,224,226, interval between each position of centre of gravity on the circumferential C be coil span (for example, each pitch of teeth Pa shown in Figure 32 A) is set under the state of equalization (Pa=Pa), for each groove 241,242,243 width promptly with each groove 241,242, adjacent each tooth 222 on the direction of 243 quadratures, 224,226 interval, with the single-phase U groove 242 of ring-shaped winding 214 or W phase ring-shaped winding 215 mutually has been installed, 243 width PA compares, the width PB that the groove 241 of the U phase ring-shaped winding 214 of two-phase and W phase ring-shaped winding 215 has been installed is set greatlyyer (for example, PA＜PB 2 * PA).
For example shown in Figure 33, in each groove 242,243 of single-phase U phase ring-shaped winding 214 or W phase ring-shaped winding 215 had been installed, shown in Figure 34 A, the cross sectional shape of each groove 242,243 when axis direction P observes roughly was rectangle.Relative therewith, for example shown in Figure 33, in the groove 241 of U phase ring-shaped winding 214 that two-phase has been installed and W phase ring-shaped winding 215, shown in Figure 34 B, the cross sectional shape of the groove when incline direction PS observes roughly is rectangle.And the area of section of each groove 242,243 is configured to be roughly 1: 2 with the ratio of the area of the area of section of groove 241.
Stator 210 according to second variation, for example shown in Figure 32 B, under the situation that only is provided with the groove parallel with axis direction P, when guaranteeing desirable stacking factor for each groove, the number of phases corresponding to each ring-shaped winding 214,215 of on the groove between each adjacent on circumferential C tooth 222,224,226, installing, will be at the interval between each position of centre of gravity of each tooth 222,224,226 on the circumferential C, be that pitch of teeth (for example, each pitch of teeth Pb, Pc shown in Figure 32 B) sets unequally (Pb＞Pc).To this, even each adjacent tooth 222 on circumferential C, 224, each groove 241 between 226,242, each ring-shaped winding 214 of installing on 243,215 the number of phases is under the unequal situation of single-phase or two-phase, corresponding to each ring-shaped winding 214 that is mounted, 215 the number of phases, also there is no need each tooth 222,224, interval between each position of centre of gravity of 226 is set unequally, for being installed in each groove 241,242, each ring-shaped winding 214 on 243,215, can guarantee desirable stacking factor, can prevent: because for example at circumferential each tooth 222 of C, 224,226 relative position becomes unequal and the breakdown torque that can export is descended, and cogging torque or torque pulsation increase.
And, in the groove 241 that tilts for axis direction P, the cross sectional shape of groove 241 can be set for and have roughly being rectangle of the groove parallel 242,243 same cross sectional shapes with axis direction P.
Therefore, there is no need to use ring-shaped winding, can guarantee desirable stacking factor by each ring-shaped winding 214,215 with simple cross sectional shapes such as rectangular wires with special cross sectional shape.
The rotor 251 of salient pole type motor 250 that possesses the stator 210 of first variation of the 4th execution mode, the 4th execution mode and second variation, for example shown in Figure 35, Figure 36, Figure 37 A and Figure 37 B, be to utilize permanent magnet 252 to be used as the permanent magnet formula rotor in magnetic field, near the peripheral part of rotor body 253 inside is run through to be provided with along rotation O direction at the predetermined distance of upwards being separated by in week and is extended a plurality of magnet installing holes 254.
The permanent magnet 252 that is installed on each magnet installing hole 254 for example is magnetized diametrically.The a plurality of permanent magnets 252 that are set up week upwards being separated by predetermined distance, the direction of magnetization that is configured to adjacent permanent magnet 252 is mutually opposite direction, that is the permanent magnet 252 of other that are that adjacent connection outer circumferential side is the S utmost point on the permanent magnet 252 of the N utmost point at outer circumferential side.
U phase track ring 211, V phase track ring 212 and W phase track ring 213 along each phase of superimposed each three-phase of rotation O direction, stator body 210a for such connection, setting is along the thickness La of the permanent magnet 252 of rotation O direction, than the little (La＜Lb) of the axial effective length Lb along each tooth 222,224,226 of the three-phase of rotation O direction.On the peripheral part of rotor body 253, formed the relative subtend portion 255 of leading section with interior all sides of each tooth 222,224,226.For this subtend portion 255, thickness along the subtend portion 255 of rotation O direction, along more than the thickness La of the permanent magnet 252 of rotation O direction, and, below the axial effective length Lb of each tooth 222,224,226 of three-phase, for example be configured to the thickness that the axial effective length Lb with each tooth 222,224,226 of three-phase is equal to.
Being set at rotor with salient pole portion 256 between each the magnet installing hole 254 that week makes progress adjacent, that be connected with subtend portion 255 is formed, along with from radially interior all sides towards outer circumferential side, for example change along the thickness of rotation O direction from thickness La to thickness Lb to increasing tendency.
Figure 38 and shown in Figure 39 for example, with the corresponding polar arc of the length angle α of circumferential each permanent magnet 252 of C, with as in the circumferential salient pole width beta of the length of each rotor with salient pole portion 256 of C, be configured to have torque density suitable value α 0 greatly, β 0.
According to this salient pole type motor 250, with will be for example become with the situation that thickness along the stator body 210a of rotation O direction is equal to mutually to compare along the thickness setting of the permanent magnet 252 of rotation O direction, along with the thickness La along the permanent magnet 252 of rotation O direction becomes than each tooth 222 of three-phase, 224,226 axial effective length Lb is little, increase by for example making along the length of the permanent magnet 252 of circumferential C or along the thickness of the permanent magnet 252 of R radially, can make the permanent magnet 252 of rotor 251 and each tooth 222 of stator 210,224, the magnetic flux of the magnetic field flux between 226 does not change, and can reduce the weight of rotor 251.
The 5th execution mode
Below, the 5th execution mode for stator of the present invention describes with reference to the accompanying drawings.
For the stator 310 of present embodiment, U phase track ring 311, V phase track ring 312, W phase track ring 313, U phase ring-shaped winding 314, the W phase ring-shaped winding 315 that stator 310 is had, identical with the structure of the stator 110 of second execution mode, U phase track ring 111 that stator 110 is had, V phase track ring 112, W phase track ring 113, U phase ring-shaped winding 114, W phase ring-shaped winding 115, omit its explanation herein.
The U that is had for the U phase track ring 311 of present embodiment is back yoke 321, U phase tooth 322 mutually; The V that V phase track ring 312 is had is back yoke 323, V phase tooth 324 mutually; And the W that had of W phase track ring 313 back yoke 325, W phase tooth 326 mutually, also with the U of second execution mode mutually back yoke 121, U phase tooth 122, V mutually back yoke 123, V phase tooth 124, and W the structure of back yoke 125, W phase tooth 126 is identical mutually, omit its explanation herein.
In the present embodiment, along superimposed each yoke 321,322,323 of axis direction P, connect each track ring 311,312,313.Then, for example shown in Figure 40, in accordance with regulations in proper order (for example, in turn, U phase tooth 322, V phase tooth 324, W phase tooth 326 etc.) arrange a plurality of teeth 322,324 and 326 along circumferential C.Between each tooth 322,324 that circumferentially C is adjacent, formed the groove that disposes single-phase U phase ring-shaped winding 314.Between each tooth 324,326 that circumferentially C is adjacent, formed the groove that disposes single-phase W phase ring-shaped winding 315.Between each tooth 322,326 that circumferentially C is adjacent, the U phase ring-shaped winding 314 of configuration two-phase and the groove of W phase ring-shaped winding 315 have been formed.
Each tooth 322,324,326 of each track ring 311,312,313 has axial width and the circumferential width that for example is equal to mutually.Interval (that is, the circumferential width of each groove) in 322,324,326 in circumferentially C is adjacent each tooth is configured to, with the corresponding value of bar number (for example, with the proportional value of bar number) of each ring-shaped winding 314,315 that is configured in each groove.Promptly, the interval C1 of 324,326 in 322,324 in each tooth of each single ring-shaped winding 314,315 and each tooth will have been disposed, set the value littler (for example, value of 1/2 of the interval C2 of 322,326 in each tooth etc.) for than the interval C2 of 322,326 in each tooth of each ring-shaped winding 314,315 that has disposed two-phase.
Each ring-shaped winding 314,315 has: for example side face introversion around the axis is converted into crank-like and pitch of the laps, a plurality of U portion 331 and W portion 332 of crawling mutually of crawling mutually.
The width of circumferential C of portion 331,332 of respectively crawling is a coil span, and is for example shown in Figure 40, is set to electric angle and counts 120 °.The portion 331,332 of respectively crawling is configured to give prominence to mutually different direction (promptly, being mutual relative direction, a side and the opposing party of axis direction P).Along circumferential C U phase ring-shaped winding 314 and W phase ring-shaped winding 315 are configured on the position of relativity shift, make to have and count 240 ° phase difference with electric angle.Thus,, have and count 240 ° phase difference with electric angle, have and count 120 ° phase difference with electric angle in the circumferential adjacent W of the opposing party's side of the C portion 332 of crawling mutually in the circumferential adjacent W of side's side of the C portion 332 of crawling mutually for example for the U portion 331 of crawling mutually.Each ring-shaped winding 314,315 of two-phase is configured to, and the mutual portion of respectively crawling 331,332 of giving prominence on mutual relative direction alternatively arranges along circumferential C, and does not intersect mutually.
On crawling portion 331 mutually, disposed the U of U phase ring-shaped winding 314 a U phase tooth 322 of U phase track ring 311.On crawling portion 332 mutually, disposed the W of W phase ring-shaped winding 315 a W phase tooth 326 of W phase track ring 313.The adjacent U portion 331 of crawling mutually crawls mutually with W and has disposed a V phase tooth 324 of V phase track ring 312 between the portion 332 on circumferential C.
Thus, be filled in that circumferential C goes up 324,326 in 322,324 adjacent in each tooth or tooth or 322,326 and each ring-shaped winding 314,315 of the two-phase that is configured, formed and counted 120 ° short square with electric angle.
For example shown in Figure 11 A, have each ring-shaped winding 314,315 of two-phase of counting 240 ° phase difference (coil phase is poor) with electric angle mutually and be wired as V word shape, the sine wave that 120 ° phase difference is arranged mutually each other by circulation, for example under the situation that can ignore leakage flux, shown in Figure 11 C, three phase windings that U phase, V reach the W phase mutually are wired as Y word shape, produce and the rotating magnetic field that circulates and have mutually the stator of the three-phase of the sine wave of 120 ° phase difference each other to be equal to.
For example the state shown in Figure 11 B is, respectively crawling portion 331,332 under the outstanding state of the direction that is equal to (promptly, axis direction P a side or the opposing party), be wired as V word shape having each ring-shaped winding 314,315 of two-phase of counting 60 ° phase difference with electric angle mutually; State shown in Figure 11 A is, respectively crawling portion 331,332 under the outstanding state of mutually different direction (promptly, axis direction P a side and the opposing party), be wired as V word shape having each ring-shaped winding 314,315 of two-phase of counting 240 ° phase difference with electric angle mutually; Above-mentioned two states in the same manner, when circulation has mutually each other 120 ° phase difference sinusoidal wave, for example under the situation that can ignore leakage flux, shown in Figure 11 C, three phase windings that U phase, V reach the W phase mutually are wired as Y word shape, can produce the rotating magnetic field that is equal to the stator of the three-phase of the sine wave of 120 ° phase difference each other of circulating mutually.
The voltage equation of the motor of three-phase (U phase, V reach the W phase mutually) and second execution mode are in the same manner as described in the above-mentioned formula (1).
With second execution mode in the same manner, each phase voltage command value V u, V v, V wVoltage between lines (the voltage between lines V that for example, U phase-V is alternate Uv(=V u-V v) with W mutually-voltage between lines V that V is alternate Wv(=V w-V v)), shown in above-mentioned formula (2).
With second execution mode in the same manner, in the voltage equation of the motor of the three-phase shown in the above-mentioned formula (1) (U phase, V reach the W phase mutually), the model of for example removing the V phase composition is shown in above-mentioned formula (3).
With second execution mode in the same manner, the model shown in the above-mentioned formula (3) is if make the direction counter-rotating (that is, making the direction of rotation counter-rotating of rotor) of the winding of W phase, shown in above-mentioned formula (4).
With second execution mode in the same manner, the model shown in the above-mentioned formula (4) is if make the number of turn n of each winding change to ( 3) doubly, then shown in above-mentioned formula (5).
With second execution mode in the same manner, model shown in the above-mentioned formula (5) makes the angle initial point of the phase place of induced voltage only move 90 degree (=pi/2), if replace the composition and W composition mutually of U phase, then shown in above-mentioned formula (6), become identical with above-mentioned formula (2).
The stator 310 of the 5th execution mode has said structure.Then, describe for the manufacture method of this stator 310 with reference to the accompanying drawings.
At first, for example shown in Figure 41, make the U phase ring-shaped winding 314 of two-phase and W phase ring-shaped winding 315 be configured as crank-like, make coil span become 120 ° in electric angle, form a plurality of U portion 331 and W portion 332 of crawling mutually of crawling mutually.Then, make the portion of respectively crawling 331,332 (promptly towards the mutual relative direction of the U phase ring-shaped winding 314 of two-phase and W phase ring-shaped winding 315, the side (first direction) of axis direction P and the opposing party's (second direction)) outstanding, with each ring-shaped winding 314,315 of axis coaxle ground configuration.
At first will have towards the W phase track ring 313 of the outstanding a plurality of W phase tooth 326 of the first direction of axis direction P and be configured in assigned position with axis coaxle.
Then, W phase ring-shaped winding 315 is moved with respect to W phase track ring 313 towards second direction from the first direction of axis direction P, each W that each W phase tooth 326 of W phase track ring 313 is inserted W phase ring-shaped winding 315 relatively crawl in the portion 332 mutually.
Then, with the state of axis coaxle ground configuration under, V phase track ring 312 is moved with respect to W phase ring-shaped winding 315 towards second direction from the first direction of axis direction P, the single V phase tooth 324 of V phase track ring 312 is inserted into W adjacent on the circumferential C of W phase ring-shaped winding 315 relatively crawls mutually between the portion 332, with the W phase yoke 325 of W phase track ring 313 and V mutually the V phase yoke 323 of track ring 312 along the superimposed connection of axis direction P.
Then, U phase ring-shaped winding 314 and W phase ring-shaped winding 315 are had mutually count 240 ° phase difference with electric angle, U phase ring-shaped winding 314 is configured on the position with respect to W phase ring-shaped winding 315 relativity shifts along circumferential C, under this state, U phase ring-shaped winding 314 is relatively moved for W phase ring-shaped winding 315 towards second direction from the first direction of axis direction P, alternatively be arranged in the mutual portion of respectively crawling 331,332 outstanding on the mutual relative direction along circumferential C, and, mutual each ring-shaped winding 314,315 that does not dispose two-phase across.
Then, with the state of axis coaxle configuration under, U phase track ring 311 is relatively moved for U phase ring-shaped winding 314 towards second direction from the first direction of axis direction P, each U that each U phase tooth 322 of U phase track ring 311 is inserted into U phase ring-shaped winding 314 relatively crawls in the portion 331 mutually, with the V phase yoke 323 of V phase track ring 312 and U mutually the U phase yoke 321 of track ring 311 along the superimposed connection of axis direction P.
Stator 310 according to the 5th execution mode, for example shown in (a) portion of Figure 42, by will be at circumferential each adjacent tooth 322 of C, 324,326 interval (promptly, the circumferential width of each groove) sets for, with each ring-shaped winding 314 that is configured in each groove, 315 the corresponding value of bar number (for example, with proportional value of bar number etc.), become unequal, for example shown in (b) portion of Figure 42, with will be at circumferential each adjacent tooth 322 of C, 324,326 interval is set for, with each ring-shaped winding 314 that is configured in each groove, the situation of the value C0 that is equal to that 315 bar number is irrelevant is compared, and can prevent corresponding to each ring-shaped winding 314 that is installed on each groove, 315 bar is counted stacking factor and is descended.First variation of the 5th execution mode
In the 5th execution mode, though will be at circumferential each adjacent tooth 322 of C, 324,326 interval (promptly, the circumferential width of each groove) sets for, with each ring-shaped winding 314 that is configured in each groove, 315 the corresponding value of bar number, but be not limited to this, can with for example with each yoke 321,323,325 each tooth 322 that is connected, 324,326 the interval to each other of base end part is at least set for, with each ring-shaped winding 314 that is configured in each groove, 315 the corresponding value of bar number, also can each tooth 322 of the rotor subtend portion relative with rotor (not shown) will be formed, 324,326 leading section interval is to each other set for, with the corresponding value of pole configuration state of rotor.
For example in first variation shown in Figure 43, with each tooth 322,324,326 leading section is configured in circumferential C in turn and goes up on the position of prefabricated predetermined distance, under this state, disposed each ring-shaped winding 314 of two-phase for formation, the U phase tooth 322 of 315 groove and W phase tooth 326, on U phase tooth 322, formed rake 322c, make along R radially, along with from leading section 322a towards base end part 322b, the circumferential width CU of U phase tooth 322 does not change, the position of the U phase tooth 322 on circumferential C, leave from adjacent W phase tooth 326, towards with adjacent V mutually the direction that is close of tooth 324 be offset gradually.
On W phase tooth 326, formed rake 326c, make along R radially, along with from leading section 326a towards base end part 326b, the circumferential width CW of W phase tooth 326 does not change, the position of the W phase tooth 326 on circumferential C, leave from adjacent U phase tooth 322, towards with adjacent V mutually the direction that is close of tooth 324 be offset gradually.
V phase tooth 324 is formed, along R radially, along with from leading section towards base end part, the circumferential width CV of V phase tooth 324 does not change, the position of the V phase tooth 324 on circumferential C does not change.
Thus, the value that is configured to be equal at the leading section interval to each other of each circumferentially adjacent tooth 322,324,326, under this state, at interval Cb is configured to the value bigger than interval Ca, and described interval Cb is the U phase tooth 322 that disposed the U phase ring-shaped winding 314 of two-phase and W phase ring-shaped winding 315 and W each base end part 322b, 326b interval to each other of tooth 326 mutually; Described interval Ca be disposed single-phase U phase ring-shaped winding 314 or W phase ring-shaped winding 315 each tooth 322,324 each base end part to each other or each base end part interval to each other of tooth 324,326.Therefore, the cross sectional shape relative with the axis direction P of each U phase tooth 322 and W phase tooth 326 be parallelogram roughly, and the cross sectional shape relative with the axis direction P of V phase tooth 324 roughly is rectangle.
In first variation, the relative position of the rotor subtend portion relative with the rotor (not shown) of each tooth 322,324,326 is constant, near each base end part, can suitably set each tooth 322,324,326 interval to each other, can prevent that the breakdown torque that can export from descending, cogging torque or torque pulsation increase, and can prevent the decline of stacking factor.
Second variation
In for example Figure 44 and second variation shown in Figure 45, with each tooth 322,324,326 leading section is configured in circumferential C in turn and goes up on the position of prefabricated predetermined distance, under this state, disposed each ring-shaped winding 314 of two-phase for formation, the U phase tooth 322 of 315 groove and W phase tooth 326, on U phase tooth 322, formed rake 322c, make along R radially, along with from leading section 322a towards base end part 322b, the circumferential width of U phase tooth 322 to the tendency that reduces (for example, from circumferential width CU1 to circumferential width CU2) change, and, the axial width of U phase tooth 322 changes to the tendency that increases (for example, from axial width α to axial width β), thus, the U that defines with the product of axial width as the circumferential width area of the radial section of tooth 322 does not mutually change, and the position of the U phase tooth 322 on circumferential C is left from adjacent W phase tooth 326, and, do not change for adjacent V phase tooth 324.
On W phase tooth 326, formed rake 326c, make along R radially, along with from leading section 326a towards base end part 326b, the circumferential width of W phase tooth 326 to the tendency that reduces (for example, from circumferential width CW1 to circumferential width CW2) change, and, the axial width of W phase tooth 326 changes to the tendency that increases (for example, from axial width α to axial width β), thus, the W that defines with the product of axial width as the circumferential width area of the radial section of tooth 326 does not mutually change, and the position of the W phase tooth 326 on circumferential C is left from adjacent U phase tooth 322, and, do not change for adjacent V phase tooth 324.
V phase tooth 324 is formed, along R radially, along with from leading section towards base end part, the circumferential width CV and the axial width α of V phase tooth 324 do not change, the position of the V phase tooth 324 on circumferential C does not change.
Thus, the value that is configured to be equal at the leading section interval to each other of each circumferentially adjacent tooth 322,324,326, under this state, at interval Cb is configured to the value bigger than interval Ca, and described interval Cb is the U phase tooth 322 that disposed the U phase ring-shaped winding 314 of two-phase and W phase ring-shaped winding 315 and W each base end part 322b, 326b interval to each other of tooth 326 mutually; Described interval Ca be disposed single-phase U phase ring-shaped winding 314 or W phase ring-shaped winding 315 each tooth 322,324 each base end part to each other or each base end part interval to each other of tooth 324,326.The cross sectional shape relative with the axis direction P of each U phase tooth 322 and W phase tooth 326 be parallelogram roughly, and the cross sectional shape relative with the axis direction P of V phase tooth 324 roughly is rectangle.
In second variation, whole magnetic flux of the rotor subtend face by each tooth 322,324,326 can be set for cardinal extremity face by each tooth 322,324,326, the conducting loss that unitary current in the time of can preventing and produce desirable torque is suitable increases, near each base end part, can suitably set each tooth 322,324,326 interval to each other, can prevent the decline of stacking factor.
The 3rd variation of the 5th execution mode
In the 5th execution mode, though by will be at circumferential each adjacent tooth 322 of C, 324,326 interval (promptly, the circumferential width of each groove) sets for, with each ring-shaped winding 314 that is configured in each groove, 315 the corresponding value of bar number (for example, with proportional value of bar number etc.), make it become unequal, and feasible each tooth 322 that has formed the rotor subtend portion relative with rotor (not shown), 324,326 leading section interval to each other is unequal, but be not limited to this, Figure 46 A for example, the 3rd variation shown in Figure 46 B, also can be with at circumferential each adjacent tooth 322 of C, 324,326 interval is set for, with each ring-shaped winding 314 that is configured in each groove, 315 the corresponding value of bar number, set for unequal, and, for: have from each tooth 322,324,326 leading section is to each outstanding enlarged portion 341 of circumferential C, 342,343, by each tooth 322,324,326 leading section and each enlarged portion 341 of giving prominence to from this leading section, 342,343 each subtend portion 351 that constitutes, 352,353, will be at circumferential each adjacent tooth 322 of C, 324,326 each other each subtend portion 351,352,353 interval Ct sets impartially.
According to the 3rd variation, can prevent that interval owing to 351,352,353 in each for example relative with the rotor subtend portion unequal breakdown torque that can export that causes that becomes from descending, and can prevent that cogging torque or torque pulsation from increasing.
And, in the groove that circumferentially each adjacent tooth 322,324,326 of C forms to each other, can be rectangle setting for roughly for the cross sectional shape of each groove bearing of trend.Therefore, there is no need to use each ring-shaped winding 314,315 that for example has special cross sectional shape,, can easily guarantee desirable stacking factor by for example having each ring-shaped winding 314,315 of simple cross sectional shapes such as rectangular wire.
And, in the 3rd execution mode, for example shown in Figure 47 A, Figure 47 B, along circumferential C, along with from the leading section of each enlarged portion 341,342,343 towards base end part, also each enlarged portion 341,342,343 can be set for, change to increasing tendency ground along the thickness of each enlarged portion 341,342,343 of the radially R of each ring-shaped winding 314,315.
In this case, the magnetic flux of the subtend face by each enlarged portion 341,342,343 relative with rotor, further pass through each connecting portion of the leading section of each enlarged portion 341,342,343 and each tooth 322,324,326, base end part to each tooth 322,324,326 flows out, can prevent that between this magnetic flux that causes owing to magnetic saturation from reducing, can effectively utilize the magnetic field flux between each tooth 322,324,326 of rotor and stator 310.
And, have the rotor 361 of salient pole type motor 360 of the stator 310 of above-mentioned execution mode, for example shown in Figure 48, be to utilize the permanent magnet formula rotor of permanent magnet 362 as magnetic field, on the outer peripheral face of rotor body 363, predetermined distance has disposed a plurality of permanent magnets 362 upwards being separated by in week.
Disposing each permanent magnet 362, make for example to be magnetized diametrically, become rightabout mutually in the direction of magnetization of the adjacent permanent magnet 362 that makes progress in week, is on the permanent magnet 362 of the N utmost point at outer circumferential side promptly, the permanent magnet 362 of other that adjacent connection outer circumferential side is the S utmost point.
Be provided with surperficial yoke 364 on the outer peripheral face of each permanent magnet 362, described surperficial yoke 364 has formed the relative subtend face of leading section with each tooth 322,324,326 of stator 310.
On the outer peripheral face of rotor body 363, the direction that each permanent magnet 362 extends is for the rotation O direction of rotor 361 predetermined angular that only tilts.
According to this salient pole type motor 360, to set at the interval of 322,324,326 in each tooth that circumferentially C is adjacent, with the corresponding value of bar number of each ring-shaped winding 314,315 that is configured in each groove, can suppress owing to set the generation of the unequal cogging torque that causes or torque pulsation.
The 6th execution mode
Below, the 6th execution mode for stator of the present invention describes with reference to the accompanying drawings.
Generation makes the stator 410 of the rotating magnetic field of rotor (not shown) rotation, and is for example shown in Figure 49, has: each is by a plurality of phases, and for example U phase, V reach a plurality of U phase stator pieces 411, V phase stator piece 412 and the W phase stator piece 413 of each phase of the three-phase that W constitutes mutually mutually; With the U phase ring-shaped winding 414 and the W phase ring-shaped winding 415 that reach the two-phase that W constitutes mutually by U mutually.
Each stator piece 411,412,413 for example has, each U phase yoke 421, V phase yoke 422, W phase yoke 423 and each U tooth 424, V phase tooth 425, W phase tooth 426 mutually, described each U phase tooth 424, V phase tooth 425, W phase tooth 426 have the axial width that is equal to mutually with each yoke 421,422,423, and, have the circumferential width littler than each yoke 421,422,423,, roughly be rectangle to radially R is outstanding from each yoke 421,422,423 with the cross sectional shape that radially R is relative.Each circumferential width of U phase tooth 424 and V phase tooth 425 is formed, and for example is the value of twice of the circumferential width of V phase tooth 425.
Order is arranged in each stator piece 411,412 and 413 circular in accordance with regulations, under this state, will the circumferential end of each yoke 421,422 of each stator piece 411,412 that circumferentially C is adjacent each other or the circumferential end of each yoke 422,423 of stator piece 412,413 be joined to one another.In 425,426 in each stator piece 411,412 that circumferentially C is adjacent 424,425 in each tooth or stator piece 412,413 each tooth, formed the groove of each ring-shaped winding 414,415 of configuration regulation.
Each ring-shaped winding 414,415 has: for example side face introversion around the axis is converted into crank-like and pitch of the laps, a plurality of U that has similar shape mutually portion 431 and the W portion 432 of crawling mutually of crawling mutually.
Each snakelike 431, the width of 432 circumferential C are that coil span is set to, and for example count 180 ° with electric angle.Along circumferential C U phase ring-shaped winding 414 and W phase ring-shaped winding 415 are configured on the position of relativity shift, make to have 60 ° or have 240 ° phase difference in electric angle in electric angle.In that for example each snakelike 431,432 to identical direction (promptly, a side or the opposing party of axis direction P) under the outstanding state, be configured to have 60 ° phase difference in electric angle, for example shown in Figure 49, at each snakelike 431,432 (promptly to different mutually directions, a side and the opposing party of axis direction P) under the outstanding state, be configured to have 240 ° phase difference in electric angle.
For suitable with 1/2 cycle (promptly counting 180 °) of each each ring-shaped winding 414,415 each snakelike 431,432 with electric angle, on mutually snakelike 431 of U, dispose each U phase tooth 424 and V phase tooth 425 of one, on mutually snakelike 432 of W, disposed each V phase tooth 425 and W phase tooth 426 of one.Between mutually snakelike 431 of U that circumferentially C is adjacent, each V phase tooth 425 and W phase tooth 426 of one have been disposed.Between mutually snakelike 432 of W that circumferentially C is adjacent, U phase tooth 424 and V phase tooth 425 have been disposed.
By each ring-shaped winding 414,415 is configured on the position that circumferential C is offset mutually, by each snakelike 431,432, the side of axis direction P or the opposing party's opening and on the U phase peristome 434U, the W phase peristome 434W that form, disposed each U phase tooth 424 or W phase tooth 426 of one.
Thus, be filled in that circumferential C goes up 425,426 in each tooth of 424,425 in each tooth of each adjacent stator piece 411,412 or each stator piece 412,413 and each ring-shaped winding 414,415 of the two-phase that is configured, formed and counted 180 ° full square with electric angle.
With second execution mode similarly, for example shown in Figure 11 A or Figure 11 B, have mutually and count 240 ° or each ring-shaped winding 414,415 of two-phase of counting 60 ° phase difference (coil phase is poor) with electric angle with electric angle and be wired as V word shape, the sine wave that 120 ° phase difference is arranged mutually each other by circulation, for example under the situation that can ignore leakage flux, shown in Figure 11 C, three phase windings that U phase, V reach the W phase mutually are wired as Y word shape, produce and the rotating magnetic field that circulates and have mutually the stator of the three-phase of the sine wave of 120 ° phase difference each other to be equal to.
That is, the voltage equation of the motor of three-phase (U phase, V reach the W phase mutually) and second execution mode in the same manner, if for example ignore phase resistance, then by each phase voltage command value V u, V v, V w, with each phase current I u, I v, I w, with each mutually coefficient of self-inductance L, with coefficient of mutual inductance M, with the angular velocity of rotation ω of rotor, with induced voltage Ke, shown in above-mentioned formula (1).
In above-mentioned formula (1), because each phase current I u, I v, I wCan explain by any two phase current, so if for example by U phase current I uAnd W phase current I wExplain and cancellation V phase current I v, each phase voltage command value V then u, V v, V wVoltage between lines (the voltage between lines V that for example, U phase-V is alternate Uv(=V u-V v) with W mutually-voltage between lines V that V is alternate Wv(=V w-V v)), shown in above-mentioned formula (2).
With second execution mode in the same manner, in the voltage equation of the motor of the three-phase shown in the above-mentioned formula (1) (U phase, V reach the W phase mutually), the model of for example removing the V phase composition is shown in above-mentioned formula (3).
With second execution mode in the same manner, the model shown in the above-mentioned formula (3) is if make the direction counter-rotating (that is, making the direction of rotation counter-rotating of rotor) of the winding of W phase, shown in above-mentioned formula (4).
With second execution mode in the same manner, the model shown in the above-mentioned formula (4) is if make the number of turn n of each winding change to ( 3) doubly, then shown in above-mentioned formula (5).
Model shown in the above-mentioned formula (5) makes the angle initial point of the phase place of induced voltage only move 90 degree (=pi/2), if replace the composition and W composition mutually of U phase, then shown in above-mentioned formula (6), becomes identical with above-mentioned formula (2).
Manufacture method
The stator 410 of present embodiment has said structure.Then, describe for the manufacture method of this stator 410 with reference to the accompanying drawings.
The winding arrangement step
At first, in the winding arrangement step, for example shown in Figure 50 A, make the U phase ring-shaped winding 414 of two-phase and W phase ring-shaped winding 415 be configured as crank-like, make coil span become 180 °, form mutually snakelike 432 of mutually snakelike 431 of a plurality of U and W in electric angle.Then, be configured to (promptly at each snakelike 431,432 to different mutually directions, a side and the opposing party of axis direction P) under the outstanding state, U phase ring-shaped winding 414 and W phase ring-shaped winding 415 are configured on the position of circumferential C relativity shift the feasible phase difference that has 240 ° in electric angle at least mutually.Thus, formed: the cross part 433 that be surrounded around inciting somebody to action by U phase ring-shaped winding 414 and W phase ring-shaped winding 415; With by the U of each snakelike 431, the side of 432 that constitute, axis direction P or the opposing party's opening peristome 434U, W phase peristome 434W mutually.
Tooth inserts operation
Then, in tooth inserts operation, for example shown in Figure 50 B, the V phase tooth 425 of V phase stator piece 412 is inserted in the cross parts 433 along R radially.Then, adjust U phase ring-shaped winding 414 and W phase ring-shaped winding 415 at the circumferential relative position of C, make U phase ring-shaped winding 414 and W phase ring-shaped winding 415 have mutually and count 240 ° phase difference with electric angle.
The tooth installation procedure
Then, in the tooth installation procedure, for example shown in Figure 50 C, move U phase stator piece 411 from a side towards the opposing party, U phase tooth 424 is installed on the U phase peristome 434U of side's opening of axis direction P along axis direction P., W phase tooth 426 is installed on the W phase peristome 434W of the opposing party's opening of axis direction P towards the mobile W phase of side stator piece 413 along axis direction P from the opposing party.Then, make the circumferential end of each yoke 421,422 of each stator piece 411,412 that circumferentially C is adjacent each other or the circumferential end of each yoke 422,423 of each stator piece 412,413 be connected to each other.
As mentioned above, stator 410 according to the 6th execution mode, by have 240 ° or have each ring-shaped winding 414,415 of 60 ° two-phase phase difference (coil phase is poor), that be wired as V word shape in electric angle mutually in electric angle, can produce with U for example mutually, three phase windings of V phase, W phase are wired as the rotating magnetic field that the stator of the three-phase of Y word shape is equal to.Therefore, be used to constitute stator 410 needed part numbers, can make simplifying the structure of stator 410 by reducing the number of phases of the winding that needs, can reducing.In addition, can prevent because the location conflicts of the transition part of each winding that winding intersects mutually and the size of the axis direction of the height of the coil-end that causes or motor too increases.
Manufacture method according to the stator 410 of the 6th execution mode, each ring-shaped winding 414,415 of the tortuous two-phase that becomes crank-like and be shaped in advance is configured on the position of circumferential C relativity shift, the feasible phase difference that has 240 ° in electric angle mutually, afterwards, owing to disposed each tooth 424,425,426, each ring-shaped winding 414,415 for being configured in 425,426 in 424,425 adjacent in each tooth of circumferential C or tooth can easily guarantee desirable stacking factor.In addition, can prevent easily that the height dimension of coil-end from too increasing.
First variation of the 6th execution mode
In the 6th execution mode, for example shown in Figure 51 A, though on the U of two-phase phase ring-shaped winding 414 and W phase ring-shaped winding 415, be provided with tortuous each snakelike 431,432 of becoming crank-like, but be not limited to this, for example shown in Figure 51 B, tortuous in echelon each snakelike 431,432 can be set on the U of two-phase phase ring-shaped winding 414 and W phase ring-shaped winding 415 also.
In the 6th above-mentioned execution mode, each snakelike 431,432, for example shown in Figure 51 A, have crooked rectangular four bend E.To this, in this first variation, for example shown in Figure 51 B, each snakelike 431,432 has four bends 435 that for example bend to the regulation obtuse angle, forms to have the trapezoidal of two symmetrical hypotenuses.
For example shown in Figure 52, on the cross part 433 that will form being surrounded on every side by U phase ring-shaped winding 414 and W phase ring-shaped winding 415, inserted V phase tooth 425 along R radially, described V phase tooth 425 is corresponding to the shape of this cross part 433 and cross sectional shape that radially R is relative parallelogram roughly.
Snakelike 431 by each, side's opening of 432 that constitute, axis direction P and on the U phase peristome 434U that forms, along from the side of axis direction P direction towards the opposing party, U phase tooth 424 has been installed, and described U phase tooth 424 is roughly triangular in shape with the cross sectional shape that radially R is relative corresponding to the shape of this U phase peristome 434U.Snakelike 431 by each, the opposing party's opening of 432 that constitute, axis direction P and on the W phase peristome 434W that forms, along from the opposing party of axis direction P direction towards a side, W phase tooth 426 has been installed, and described W phase tooth 426 is roughly triangular in shape with the cross sectional shape that radially R is relative corresponding to the shape of this W phase peristome 434W.
In this first variation, by complications each ring-shaped winding 414,415 of shape in echelon, compare with for example each ring-shaped winding 414,415 of tortuous one-tenth crank-like, the winding coefficient of the inductance of each ring-shaped winding 414,415 is changed hardly, and the shortening winding length can reduce copper loss.
Second variation of the 6th execution mode
In the 6th execution mode, though similar each snakelike 431,432 of mutual shape is set on the U of two-phase phase ring-shaped winding 414 and W phase ring-shaped winding 415, but be not limited to this, for example shown in Figure 53 A～Figure 53 C, also can on mutually snakelike 432 of mutually snakelike 431 of U or W, be arranged on radially outstanding and crooked zigzag part 441 on the R, make each snakelike 431,432 to become difformity mutually.
In this second variation, for example shown in Figure 53 A～Figure 53 C, be provided with zigzag part 441 on each position of 424,425 in each tooth on mutually snakelike 431 of the U that is configured in U phase ring-shaped winding 414 or 425,426, between each position on the U phase ring-shaped winding 414, that be configured in 424,425 or 425,426 in each tooth and transition part as the position beyond these each positions, mutual radial position offset.
Thus, disposed each ring-shaped winding at 414,415 o'clock filling 424,425 in each tooth or 425,426 in tooth, even the radial position at each position of each ring-shaped winding 414,415 that will be configured in 425,426 in 424,425 in each tooth or tooth is set under the situation of the position that is equal to, the radial position of each transition part of each ring-shaped winding 414,415 is skew mutually also.Thus, for example can prevent to increase owing to mutual transition part intersects the size of axis direction P of the height of the coil-end that causes or motor.
In this second variation, each tooth 424,425 and 426 has formed the groove of each zigzag part 441 of configuration U phase ring-shaped winding 414, among each yoke 421,422 and 423 that connects described each tooth 424,425 and 426, on the V phase yoke of installing along R radially for each ring-shaped winding 414,415 422, have corresponding to the shape of each zigzag part 441 to the outstanding protuberance 422a of R radially.
Manufacture method
The winding arrangement step
In the manufacture method of the stator 410 of this second variation, at first, in the winding arrangement step, for example shown in Figure 53 A, make the U phase ring-shaped winding 414 and the W phase ring-shaped winding 415 of two-phase be configured as crank-like, make coil span become 180 °, form mutually snakelike 432 of mutually snakelike 431 of a plurality of U and W in electric angle.On each position that is configured in 425,426 in 424,425 in each tooth on mutually snakelike 431 of each U or tooth, form to the outstanding and crooked zigzag part 441 of R radially.
Be configured to (promptly at each snakelike 431,432 to different mutually directions, the first direction of axis direction P and second direction) under the outstanding state, U phase ring-shaped winding 414 and W phase ring-shaped winding 415 are configured on the position of circumferential C relativity shift the feasible phase difference that has 240 ° in electric angle at least mutually.Thus, formed: the cross part 433 that be surrounded around inciting somebody to action by U phase ring-shaped winding 414 and W phase ring-shaped winding 415; With by the U of each snakelike 431, the first direction of 432 that constitute, axis direction P or second direction opening peristome 434U, W phase peristome 434W mutually.
The radial position at each position of each ring-shaped winding 414,415 of 425,426 in 424,425 in each tooth or tooth will be configured in, be set on the position that roughly is equal to, the radial position of each transition part of each ring-shaped winding 414,415 is set on the position of mutual skew.
Tooth inserts operation
In tooth inserts operation, for example shown in Figure 53 B, the V phase tooth 425 of V phase stator piece 412 is inserted in the cross parts 433 along R radially.Adjust U phase ring-shaped winding 414 and W phase ring-shaped winding 415 at the circumferential relative position of C, make U phase ring-shaped winding 414 and W phase ring-shaped winding 415 have mutually and count 240 ° phase difference with electric angle.
The tooth installation procedure
In the tooth installation procedure, for example shown in Figure 53 C, move U phase stator piece 411 towards second direction along axis direction P from first direction, U phase tooth 424 is installed on the U phase peristome 434U of first direction opening of axis direction P.Move W phase stator piece 413 along axis direction P from second direction towards first direction, W phase tooth 426 is installed on the W phase peristome 434W of second direction opening of axis direction P.Then, make each stator piece 411,412 that circumferentially C is adjacent each other or 412,413 each other each yoke 421,422 circumferential end each other or 422,423 circumferential end be connected to each other.
The 3rd variation of the 6th execution mode
In the manufacture method of the stator 410 of the second above-mentioned variation, the moment before each tooth 424,425,426 being installed to each ring-shaped winding 414,415, in advance, on each position that is configured in 424,425 or 425,426 in each tooth on mutually snakelike 431 of each U, formed outstanding and crooked zigzag part 441 to R radially, but be not limited to this, for example shown in Figure 54 A～Figure 54 C, each tooth is installed at 424,425,426 o'clock on each ring-shaped winding 414,415, also can be set on mutually snakelike 431 of each U and form zigzag part 441.
Manufacture method
The winding arrangement step
In the manufacture method of the stator 410 of the 3rd variation, at first, in the winding arrangement step, for example shown in Figure 54 A, make the U phase ring-shaped winding 414 and the W phase ring-shaped winding 415 of two-phase be configured as crank-like, make coil span become 180 °, form mutually snakelike 432 of mutually snakelike 431 of a plurality of U and W in electric angle.At this moment, it is identical with the axial width AW of mutually snakelike 432 of W that the axial width that forms mutually snakelike 431 of the U of zigzag part 441 becomes, and will set the value bigger than the axial width AW of mutually snakelike 432 of W (AU＞AW) at the axial width AU of mutually snakelike 431 of the U in this moment for.
Be configured to (promptly at each snakelike 431,432 to different mutually directions, the first direction of axis direction P and second direction) under the outstanding state, U phase ring-shaped winding 414 and W phase ring-shaped winding 415 are configured on the position of circumferential C relativity shift the feasible phase difference that has 240 ° in electric angle at least mutually.Thus, formed: the cross part 433 that be surrounded around inciting somebody to action by U phase ring-shaped winding 414 and W phase ring-shaped winding 415; With by the U of each snakelike 431, the first direction of 432 that constitute, axis direction P or second direction opening peristome 434U, W phase peristome 434W mutually.
Tooth inserts operation
Then, in tooth inserts operation, for example shown in Figure 54 B, the V phase tooth 425 of V phase stator piece 412 is inserted in the cross parts 433 along R radially.At this moment, by on the V phase yoke 422 of V phase stator piece 412, form to outstanding protuberance 422a of R radially and suitable guiding elements (winding guiding elements) 442, clamp at each position that will be configured in 425,426 in 424,425 in each tooth on mutually snakelike 431 of the U of U phase ring-shaped winding 414 or tooth from the both sides of R radially, be configured as along the shape of the outer surface of protuberance 422a, form to the outstanding zigzag part 441 of R radially.
Adjust U phase ring-shaped winding 414 and W phase ring-shaped winding 415 at the circumferential relative position of C, make U phase ring-shaped winding 414 and W phase ring-shaped winding 415 have mutually and count 240 ° phase difference with electric angle.
The radial position at each position of each ring-shaped winding 414,415 of 425,426 in 424,425 in each tooth or tooth will be configured in, be set on the position that roughly is equal to, the radial position of each transition part of each ring-shaped winding 414,415 is set on the position of mutual skew.
The tooth installation procedure
Then, in the tooth installation procedure, for example shown in Figure 54 C, move U phase stator piece 411 towards second direction, U phase tooth 424 is installed on the U phase peristome 434U of first direction opening of axis direction P along axis direction P from first direction.Move W phase stator piece 413 along axis direction P from second direction towards first direction, W phase tooth 426 is installed on the W phase peristome 434W of second direction opening of axis direction P.Make the circumferential end of each yoke 421,422 of each stator piece 411,412 that circumferentially C is adjacent or stator piece 412,413 each other or the circumferential end of yoke 422,423 be connected to each other.
In the 3rd variation, V phase tooth 425 was being inserted each ring-shaped winding at 414,415 o'clock, by on mutually snakelike 431 of U, forming zigzag part 441, when inserting the tooth installation portion, the tooth with a part make ring-shaped winding be configured as the regulation shape.Therefore, U phase ring-shaped winding 414 is configured as along the suitable shape of the shape of V phase tooth 425, the manufacturing process of stator 410 is simplified, improve and make efficient.
The 4th variation of the 6th execution mode
In second and third above-mentioned variation, though on the U of two-phase phase ring-shaped winding 414 and W phase ring-shaped winding 415, be provided with tortuous each snakelike 431,432 of becoming crank-like, but be not limited to this, for example shown in Figure 55, also can form and have four bends 435 that for example bend to the regulation obtuse angle, have trapezoidal each snakelike 431,432 of two symmetrical hypotenuses.
In the 4th variation, be provided with on two hypotenuses of the mutual symmetry on mutually snakelike 431 of trapezoidal U to each outstanding and crooked zigzag part 441 of R radially.Thus, formed the cross part 433 that will be surrounded on every side by U phase ring-shaped winding 414 and W phase ring-shaped winding 415.Along R radially V phase tooth 425 is inserted cross parts 433, described V phase tooth 425 corresponding to the shape of this cross part 433 for the cross sectional shape of R radially parallelogram roughly.
Snakelike 431 by each, side's opening of 432 that constitute, axis direction P and on the U phase peristome 434U that forms, along from the side of axis direction P direction, install corresponding to the shape of this U phase peristome 434U for the cross sectional shape U phase tooth 424 roughly triangular in shape of R radially towards the opposing party.Snakelike 431 by each, the opposing party's opening of 432 that constitute, axis direction P and on the W phase peristome 434W that forms, along from the opposing party of axis direction P direction, install corresponding to the shape of this W phase peristome 434W for the cross sectional shape W phase tooth 426 roughly triangular in shape of R radially towards a side.
In the 4th variation, compare with for example each ring-shaped winding 414,415 of tortuous one-tenth crank-like, in complications in echelon in each ring-shaped winding 414,415 of shape, the winding coefficient of the inductance of each ring-shaped winding 414,415 is changed hardly, and can shorten winding length, can reduce copper loss.
More than, although understand preferred embodiment of the present invention, but the present invention is not limited to these embodiment.In the scope that does not break away from purport of the present invention, can carry out structural additional, omit, replace and other variation.The present invention is not limited to described explanation, is only limited to the scope of claim.

Claims (41)

1. a stator is characterized in that,
Comprise:
The separate ring-shaped winding of two-phase;
The tooth of three-phase.
2. stator according to claim 1 is characterized in that,
The ring-shaped winding of described two-phase has 90 ° phase difference in mutual electric angle.
3. stator according to claim 1 is characterized in that,
Comprise:
The stator component of two-phase, it possesses the described tooth of the circumferential width that is equal to mutually;
Single-phase stator component, it possesses the described tooth of circumferential width of the twice of described circumferential width.
4. stator according to claim 1 is characterized in that,
Comprise:
The stator component of two-phase, the described tooth that it possesses the circumferential width that is equal to mutually has the shape that is equal to mutually;
Single-phase stator component, it possesses the described tooth of circumferential width of the twice of described circumferential width.
5. stator according to claim 1 is characterized in that,
Comprise:
The stator component of two-phase, it possesses the described tooth of the circumferential width that is equal to mutually, and in the form of a ring, shape is identical mutually;
Single-phase stator component, it possesses the described tooth of circumferential width of the twice of described circumferential width, in the form of a ring,
Described stator component and described ring-shaped winding can be configured to overlap with respect to axis coaxle ground alternately.
6. stator according to claim 1 is characterized in that,
Comprise:
The stator component of two-phase, the described tooth that it possesses the circumferential width that is equal to mutually has the shape that is equal to mutually, in the form of a ring;
Single-phase stator component, it possesses the described tooth of circumferential width of the twice of described circumferential width, in the form of a ring, is configured to from by the described ring-shaped winding of described two-phase it being clamped with the both sides of the direction of parallel axes,
Described stator component and described ring-shaped winding can be configured to overlap with respect to axis coaxle ground alternately.
7. stator according to claim 1 is characterized in that,
Described ring-shaped winding has the portion of crawling.
8. stator according to claim 1 is characterized in that,
The ring-shaped winding of described two-phase has the portion of crawling, and is configured to the mutual described portion of crawling outstanding on mutual relative direction, along circumferentially alternatively arrangement, and does not intersect mutually.
9. stator according to claim 1 is characterized in that,
The ring-shaped winding of described two-phase has the portion of crawling, and coil span is counted 120 ° with electric angle, have and count 120 ° phase difference with mutual electric angle, be configured to the mutual described portion of crawling outstanding on mutual relative direction,, and do not intersect mutually along circumferentially alternatively arrangement.
10. stator according to claim 1 is characterized in that,
Comprise:
The stator component of two-phase, it possesses the described tooth of the circumferential width that is equal to mutually;
Single-phase stator component, it possesses the described tooth of circumferential width of the twice of described circumferential width,
The stator component of described three-phase has phase difference below 180 ° in mutual electric angle.
11. stator according to claim 1 is characterized in that,
Comprise:
The stator component of two-phase, it possesses the described tooth of the circumferential width that is equal to mutually;
Single-phase stator component, it possesses the described tooth of circumferential width of the twice of described circumferential width,
The stator component of described three-phase is with the phase difference of mutual electric angle in respect of 120 °.
12. stator according to claim 1 is characterized in that,
Comprise:
The stator component of two-phase, the described tooth that it possesses the circumferential width that is equal to mutually can be divided into a plurality of stator pieces;
Single-phase stator component, the described tooth of circumferential width that it possesses the twice of described circumferential width can be divided into a plurality of stator pieces.
13. stator according to claim 1 is characterized in that,
Comprise:
The stator component of each three-phase with tooth of each described three-phase; And
Cooling water pipe, it circulates coolant between the stator component of described annulus and described three-phase.
14. stator according to claim 1 is characterized in that,
Comprise:
The stator component of three-phase with tooth of each described three-phase;
Cooling water pipe, it circulates coolant between the stator component of described annulus and three-phase, and has along the tubular shape of the shape of described ring-shaped winding.
15. stator according to claim 1 is characterized in that,
The stator component that possesses the three-phase of the tooth that has each described three-phase respectively;
The ring-shaped winding that is configured to described two-phase is clamped single-phase described stator component from both sides;
Comprise cooling water pipe, it is configured at least respectively between the ring-shaped winding and described single-phase stator component of each described two-phase one by one, makes the coolant circulation.
16. stator according to claim 1 is characterized in that,
The ring-shaped winding of described two-phase has the portion of crawling, and is set at mutually the thickness in the part of the adjacency that makes progress in week, than the thin thickness of other parts.
17. stator according to claim 1 is characterized in that,
Described ring-shaped winding has the portion of crawling;
In the described tooth on being installed in the described portion of crawling, have: with the axis direction of the axis almost parallel of described ring-shaped winding on adjacent first corner part form chamfer shape, second corner part to circumferentially outstanding enlarged portion;
Described enlarged portion is set at along with the described corner part from described first leaves, and circumferential overhang changes to the tendency that increases.
18. stator according to claim 1 is characterized in that,
Described ring-shaped winding has the portion of crawling;
In the described tooth on being installed in the described portion of crawling, have: with the axis direction of the axis almost parallel of described ring-shaped winding on adjacent first corner part form chamfer shape, second corner part is to circumferentially outstanding enlarged portion;
Described enlarged portion is set at along with the described corner part from described first leaves, and circumferential overhang changes to the tendency that increases;
Between described second corner part and described enlarged portion, has slot part.
19. stator according to claim 1 is characterized in that,
Described ring-shaped winding has the portion of crawling;
Described each tooth is installed in the described portion of crawling, and along the base end part at least of radially described each tooth, is configured on the position that is offset on the axis direction with the axis almost parallel of mutual described ring-shaped winding;
Adjacent described tooth forms end difference each other by making progress in the week in described ring-shaped winding.
20. stator according to claim 1 is characterized in that,
Described ring-shaped winding has the portion of crawling;
Described each tooth is installed in the described portion of crawling, and along the base end part at least of radially described each tooth, is configured on the position that is offset on the axis direction with the axis almost parallel of mutual described ring-shaped winding;
Have by the adjacent described tooth that makes progress in the week in described ring-shaped winding and form each other, dispose the end difference of described ring-shaped winding.
21. stator according to claim 1 is characterized in that,
Described ring-shaped winding has the portion of crawling;
Described each tooth is installed in the described portion of crawling;
Along the base end part at least of radially described each tooth, be configured in mutually on the position that is offset on the axis direction with the axis almost parallel of described ring-shaped winding;
Have by the adjacent described tooth that makes progress in the week in described ring-shaped winding and form each other, dispose the end difference of the described portion of crawling of described ring-shaped winding.
22. stator according to claim 1 is characterized in that,
Described ring-shaped winding has the portion of crawling;
Described each tooth is installed in the described portion of crawling, and along the base end part at least of radially described each tooth, is configured in mutually on the position that is offset on the axis direction with the axis almost parallel of described ring-shaped winding;
Form end difference each other by the adjacent described tooth that makes progress in the week in described ring-shaped winding, in the side-play amount of the described tooth described axis direction each other that makes progress in week adjacent, roughly the same with the thickness of described ring-shaped winding.
23. stator according to claim 1 is characterized in that,
Described ring-shaped winding has the portion of crawling;
Described each tooth is installed in the described portion of crawling, and along the base end part at least of radially described each tooth, is configured in mutually on the position that is offset on the axis direction with the axis almost parallel of described ring-shaped winding;
Adjacent described tooth forms end difference each other by making progress in the week in described ring-shaped winding;
The described tooth groove to each other of the ladder difference maximum of described end difference tilts with respect to described axis direction.
24. stator according to claim 1 is characterized in that,
Described ring-shaped winding has the portion of crawling, and is installed in the described tooth in the described portion of crawling, and is set at the described tooth interval to each other that makes progress in the week of described ring-shaped winding adjacent unequal.
25. stator according to claim 1 is characterized in that,
Described ring-shaped winding has the portion of crawling, be installed in the described tooth in the described portion of crawling, be set at the described tooth interval to each other that makes progress in the week of described ring-shaped winding adjacent, be and the corresponding value of bar number that is configured in described tooth described ring-shaped winding to each other.
26. stator according to claim 1 is characterized in that,
Has the stator component that is equipped with described tooth;
Described ring-shaped winding has the portion of crawling;
Be installed in the described tooth of the regulation among the described tooth in the described portion of crawling, be set at from the rotor subtend portion of rotor subtend, along with towards the connecting portion that is connected on the described stator component, at the described tooth interval to each other that makes progress in the week of described ring-shaped winding adjacent, change to the tendency that increases.
27. stator according to claim 1 is characterized in that,
Has the stator component that is equipped with described tooth;
Described ring-shaped winding has the portion of crawling;
Be installed in the described tooth of the regulation among the described tooth in the described portion of crawling, be set at from the rotor subtend portion of rotor subtend, along with towards the connecting portion that is connected on the described stator component, width at the described tooth that makes progress in the week of described ring-shaped winding, change to the tendency that reduces, and with the axis direction of the axis almost parallel of described ring-shaped winding on the length of described tooth, change to the tendency that increases.
28. stator according to claim 1 is characterized in that,
Described ring-shaped winding has the portion of crawling;
Have from the leading section of described tooth circumferentially outstanding enlarged portion to described ring-shaped winding.
29. stator according to claim 1 is characterized in that,
Described ring-shaped winding has the portion of crawling;
Have from the leading section of described tooth circumferentially outstanding enlarged portion to described ring-shaped winding;
With respect to the subtend portion that constitutes by described leading section and described enlarged portion, be set at the interval that makes progress in the week of described ring-shaped winding between the adjacent described tooth described subtend portion each other and become impartial.
30. stator according to claim 1 is characterized in that,
Described ring-shaped winding has the portion of crawling;
Have from the leading section of described tooth circumferentially outstanding enlarged portion to described ring-shaped winding;
Described enlarged portion, be set at along with along described ring-shaped winding circumferentially from the leading section of described enlarged portion towards base end part, the thickness along the described enlarged portion radially of described ring-shaped winding changes to the tendency that increases.
31. a stator is characterized in that,
Comprise:
A plurality of ring-shaped winding with the portion of crawling;
Possess a plurality of stator pieces that are installed in the tooth in the described portion of crawling.
32. stator according to claim 31 is characterized in that,
The described portion of crawling has the rectangular bend of general curved, and tortuous one-tenth crank-like;
Described ring-shaped winding has a plurality of described portions of crawling.
33. stator according to claim 31 is characterized in that,
The described portion of crawling has the obtuse-angulate bend of general curved, and complications shape in echelon;
Described ring-shaped winding has a plurality of described portions of crawling.
34. stator according to claim 31 is characterized in that,
The mutual described portion of the crawling shape each other of a plurality of described ring-shaped winding is similar.
35. stator according to claim 31 is characterized in that,
The mutual described portion of the crawling shape difference each other of a plurality of described ring-shaped winding.
36. stator according to claim 31 is characterized in that,
Among a plurality of described ring-shaped winding, the described portion of crawling of the described ring-shaped winding of a part has the radially outstanding and crooked zigzag part to described ring-shaped winding.
37. a motor,
Comprise:
Stator, it has: the separate ring-shaped winding of being furnished with the two-phase of the portion of crawling; With the tooth that is installed in the three-phase in the described portion of crawling,
Rotor, it has permanent magnet, wherein,
Along the base end part at least of radially described each tooth, be configured in mutually on the position that is offset on the axis direction with the axis almost parallel of described ring-shaped winding;
Adjacent described tooth forms end difference each other by making progress in the week in described ring-shaped winding;
Along the length of the described permanent magnet of described axis direction, shorter than the axial effective length of the tooth that is configured in the described three-phase on the described stator;
Relative with the leading section of each tooth of described three-phase to the length along described axis direction of subtend portion of described rotor, along more than the length of the described permanent magnet of described axis direction, and below the axial effective length of the tooth of described three-phase.
38. the manufacture method of a stator is characterized in that,
Comprise:
The winding arrangement step will have a plurality of ring-shaped winding of the portion of crawling, and the position that is configured to the mutual described portion of crawling is at the relativity shift that makes progress in week;
Tooth inserts operation, with the tooth of the part among a plurality of tooth of stator, inserts the tooth installation portion that is formed by a plurality of described ring-shaped winding along the direction of insertion of regulation;
The tooth installation procedure, other the tooth with beyond the tooth of a described part is installed in the described portion of crawling along suitable installation direction.
39. the manufacture method according to the described stator of claim 38 is characterized in that,
Set described direction of insertion for the direction of the radially almost parallel of described ring-shaped winding;
Set described installation direction for the direction of the axis almost parallel of described ring-shaped winding;
Described direction of insertion and described installation direction approximate vertical.
40. the manufacture method according to the described stator of claim 38 is characterized in that,
Insert in the operation at described tooth, each constituted the described tooth that a plurality of stator piece of described stator all possesses, insert described tooth installation portion,
In described tooth installation procedure, each is constituted the described tooth that a plurality of stator piece of described stator all possesses, be installed in the described portion of crawling.
41. the manufacture method according to the described stator of claim 38 is characterized in that,
Insert in the operation at described tooth,, make described ring-shaped winding be configured as the shape of regulation by clamping described ring-shaped winding from both sides by the winding abutting part that tooth possessed and the winding guiding elements of a described part.
CNB2006100549442A 2005-03-01 2006-02-27 Stator, motor, and method of manufacturing such stator Expired - Fee Related CN100508331C (en)

Applications Claiming Priority (9)

Application Number Priority Date Filing Date Title
JP2005055670A JP4519682B2 (en) 2005-03-01 2005-03-01 Stator and motor drive device
JP2005055670 2005-03-01
JP2005055672 2005-03-01
JP2005055671 2005-03-01
JP2005057141 2005-03-02
JP2005057142 2005-03-02
JP2005306780 2005-10-21
JP2005306778 2005-10-21
JP2005306779 2005-10-21

Publications (2)

Publication Number Publication Date
CN1829044A true CN1829044A (en) 2006-09-06
CN100508331C CN100508331C (en) 2009-07-01

Family

ID=36947234

Family Applications (1)

Application Number Title Priority Date Filing Date
CNB2006100549442A Expired - Fee Related CN100508331C (en) 2005-03-01 2006-02-27 Stator, motor, and method of manufacturing such stator

Country Status (2)

Country Link
JP (1) JP4519682B2 (en)
CN (1) CN100508331C (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102457146A (en) * 2010-10-20 2012-05-16 株式会社电装 Motor
CN104135130A (en) * 2013-04-30 2014-11-05 丁景信 electric motor
CN104471845A (en) * 2012-07-25 2015-03-25 万络机电公司 Winding for a stator element of a permanent-magnet motor or generator, comprising at least one single-component, rigid limb, and method for producing same
CN105993111A (en) * 2013-12-20 2016-10-05 塞弗创新公司 Electromagnetic machine having elements with optimised electromagnetic circuits built into tracks in the form of annular crenelated lines
CN108418322A (en) * 2017-02-09 2018-08-17 德昌电机(深圳)有限公司 The stator and its manufacturing method of linear stepping motor
CN112470369A (en) * 2018-07-25 2021-03-09 株式会社电装 Stator of rotating electric machine

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4881708B2 (en) * 2006-12-07 2012-02-22 日立オートモティブシステムズ株式会社 Vehicle alternator and rotating electric machine
JP5287105B2 (en) * 2008-09-30 2013-09-11 日立工機株式会社 Tightening tool with torque detector

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3508091A (en) * 1967-12-26 1970-04-21 Philips Corp Double claw tooth stator synchronous and stepping motor with indicator
US3651356A (en) * 1970-06-12 1972-03-21 Cav Ltd Wave winding for dynamo electric machine
NL163075C (en) * 1976-07-12 1980-07-15 Gils Adrianus Van LAMINATED WINDING FOR ELECTRIC MACHINES.
NL8402542A (en) * 1984-08-20 1986-03-17 Philips Nv SYNCHRONOUS MOTOR.
JP2004064966A (en) * 2002-07-31 2004-02-26 Mitsumi Electric Co Ltd Stepping motor and manufacturing method thereof
US7132775B2 (en) * 2002-12-26 2006-11-07 Mitsubishi Denki Kabushiki Kaisha Stator of dynamoelectric machine and method for manufacturing stator winding
JP3944140B2 (en) * 2003-06-04 2007-07-11 本田技研工業株式会社 Claw pole motor stator

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102457146A (en) * 2010-10-20 2012-05-16 株式会社电装 Motor
CN102457146B (en) * 2010-10-20 2014-12-10 株式会社电装 Motor
CN104471845A (en) * 2012-07-25 2015-03-25 万络机电公司 Winding for a stator element of a permanent-magnet motor or generator, comprising at least one single-component, rigid limb, and method for producing same
CN104471845B (en) * 2012-07-25 2017-09-22 万络机电公司 Stator component for electromagnetic machine or electromagnetic generator includes the winding and its production method of the rigid branch of at least one solid memder formula
CN104135130A (en) * 2013-04-30 2014-11-05 丁景信 electric motor
CN104135130B (en) * 2013-04-30 2016-11-23 丁景信 electric motor
CN105993111A (en) * 2013-12-20 2016-10-05 塞弗创新公司 Electromagnetic machine having elements with optimised electromagnetic circuits built into tracks in the form of annular crenelated lines
CN105993111B (en) * 2013-12-20 2019-07-09 塞弗创新公司 The electromagnetic machine of electromagnetic circuit element with the optimization being integrated in the track formed as sawtooth annular line
CN108418322A (en) * 2017-02-09 2018-08-17 德昌电机(深圳)有限公司 The stator and its manufacturing method of linear stepping motor
CN112470369A (en) * 2018-07-25 2021-03-09 株式会社电装 Stator of rotating electric machine
CN112470369B (en) * 2018-07-25 2023-09-29 株式会社电装 Stator of rotating electric machine

Also Published As

Publication number Publication date
CN100508331C (en) 2009-07-01
JP4519682B2 (en) 2010-08-04
JP2006246563A (en) 2006-09-14

Similar Documents

Publication Publication Date Title
CN1829044A (en) Stator, motor, and method of manufacturing such stator
CN1062088C (en) Rotating motor and method for making same, layered iron core and method for making same
CN1078970C (en) Reluctance type rotating machine with permanent magnets
CN1162951C (en) Iron core of electric machine, and electric machine using said iron core
CN1249556A (en) Reluctance electric rotating machine with permanent magnet
CN1618161A (en) Linear actuator element
CN1248404C (en) No-position sensor motor control device
CN1159846C (en) Output controller
CN1192474C (en) Power supply device, power supply method, portable electronic apparatus, and electronic timepiece
CN1148859C (en) Motor
CN1832072A (en) Multilayer capacitor and equivalent series resistance adjustment method thereof
CN1405897A (en) Power semiconducter device with RESURF layer
CN1617435A (en) Switching power supply circuit
CN1757155A (en) Motor driving apparatus is equipped with the vehicle of this equipment and stores and makes the computer-readable recording medium of program of computer control voltage transitions
CN1126242C (en) System stabilizer for power generating system
CN1845021A (en) Command generating device
CN1841592A (en) Multilayer capacitor
CN1195429A (en) Small-sized motor and motor driver
CN1705217A (en) Switching power supply circuit
CN1767211A (en) Power semiconductor device having resurf layer
CN1596498A (en) Motor manufacturing method
CN1835366A (en) Dc-dc converter
CN1711669A (en) Spiral linear motor
CN100345363C (en) Power converter
CN1178272C (en) Semiconductor device, microdrive, microvalve and microrelay using the same and manufacture thereof

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
C17 Cessation of patent right
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20090701

Termination date: 20120227