CN208754075U - Stator - Google Patents

Abstract

A kind of stator has the multiple stator pieces arranged in the circumferential centered on the above lower central axis extended.Stator piece includes segmentation iron core, and teeth portion is radially extended from core-back；Insulating part, with linking part；And plate portion, it will be linked up between adjacent core-back.The front end of adjacent teeth portion is connected to each other by linking part.Plate portion includes base portion, is set on the axial end face of core-back；Extension circumferentially extends long from base portion than core-back；Protrusion axially protrudes；And recess portion, along axial depression.A side in protrusion and recess portion is set to the axial end face of base portion or core-back, and another party is set to the face of the core-back side of the direction axial direction in plate portion.The protrusion of a stator piece in adjacent stator piece is embedded in the recess portion of another stator piece.

Description

Stator

Technical field

The utility model relates to stators.

Background technique

In the past, there is known the motors with cricoid stator.It is first in Japan Kokai 2000-197319 bulletin First, the stator union body linked up between the teeth portion of multiple stator blocks by thinner wall section is obtained.Stator block is by spiral portion, iron Core supporting part and both sides of the chest end have thinner wall section teeth portion constitute.Spiral portion is opened at the mutual interval of iron core supporting part Coil is wound in obtained from the respective stator block of stator union body under state.Stator is linked after being provided with spiral portion The iron core supporting part of each stator block is connected to each other by body bending by the bonding or welding of link surface, thus To cricoid stator.

However, iron core supporting part is being bonded to each other or is being welded in Japan Kokai 2000-197319 bulletin When getting up, it is possible to due to the ruler of the link surface of the offset and iron core supporting part of the position at the both ends of the stator union body after bending Very little error and cause the circularity of stator to reduce.

Utility model content

The utility model is in view of above-mentioned situation, it is intended that providing a kind of stator, which can be by simple Structure and multiple stator pieces are linked for the higher ring-type of circularity.

In order to achieve the above objectives, centered on the central axis extended under the stator of the illustration of the utility model has above The multiple stator pieces arranged in the circumferential.Each stator piece has the exhausted of the segmentation iron core and resin being made of magnetic substance Edge part.Insulating part covers segmentation iron core.Segmentation iron core has core-back and teeth portion.Core-back extends in the circumferential.Teeth portion It radially extends from core-back, is wound for conducting wire across insulating part.Insulating part has linking part.Linking part is by adjacent stator The front end of the teeth portion of piece is connected to each other.Each stator piece has plate portion.Plate portion by the core-back of adjacent stator piece it Between link up.Plate portion has base portion, extension, protrusion and recess portion.Base portion is set to the axial end face of the core-back On.Extension circumferentially extends long from base portion than core-back.Protrusion axially protrudes.Recess portion is along axial depression.It is described convex A side in portion and the recess portion is set to the axial end face of the base portion or the core-back.The protrusion and Another party in the recess portion is set to the face of the core-back side of the direction axial direction in the plate portion.The adjacent stator The protrusion of a stator piece in piece is embedded in the recess portion of another stator piece.

One embodiment of illustration according to the present utility model, the material in plate portion are identical as insulating part.

One embodiment of illustration according to the present utility model, at least extension in plate portion is resin system.

One embodiment of illustration according to the present utility model, when from end on observation, the end of the radially inner side in plate portion End with radial outside is in the circular shape centered on central axis.

One embodiment of illustration according to the present utility model, with the iron of direction axial direction when protrusion has from radial Core back side is the convex curved protrusion curved surface of mode.

One embodiment of illustration according to the present utility model, when from circumferential, protrusion curved surface is also bent.

One embodiment of illustration according to the present utility model, each stator piece, which has, to be axially protruded and in circumferential direction The wall portion of upper extension, wall portion are set to the position that radial outside is leaned on than plate portion, and a stator piece in adjacent stator piece prolongs The end of the radial outside of extending portion extends along the wall portion of another stator piece.

One embodiment of illustration according to the present utility model, with towards extension when extension has from end on observation Outside be the convex curved extension curved surface of mode, extension curved surface is set to the radial direction in the circumferential front end of extension The end in outside.

One embodiment of illustration according to the present utility model, in each stator piece, the insulating part is to described Segmentation iron core carry out inserts and it is molding, the plate portion is a part of insulating part.

One embodiment of illustration according to the present utility model, plate portion includes: the first plate portion is set to core-back Axial side；And the second plate portion, be set to the axial other side of core-back, when from end on observation, the first plate portion from The first axis of the axial side of core-back extends towards circumferential side, and the second plate portion is from the axial other side of core-back Second, which is axially facing the circumferential other side, extends.

The circumferential side of one embodiment of illustration according to the present utility model, core-back is plane.

One embodiment of illustration according to the present utility model, linking part is nonmagnetic material.

The stator of illustration according to the present utility model can be linked multiple stator pieces for circularity by simple structure Higher ring-type.

Detailed description of the invention

Fig. 1 is the cross-sectional view for showing the structural example of motor.

Fig. 2 is the perspective view for showing the structural example of stator.

Fig. 3 is that the multiple stator pieces that will be linked as a whole are set as linear figure.

Fig. 4 is the top view of segmentation iron core.

Fig. 5 A is the perspective view with the stator piece in plate portion.

Fig. 5 B is the top view for the stator piece for having plate portion from end on observation.

Fig. 5 C is the side view of the stator piece from radially inner side with plate portion.

Fig. 6 is the perspective view with the stator piece in plate portion of first variation.

Fig. 7 is the side view of the stator piece in the plate portion from radially inner side with the second variation.

Fig. 8 is the side view of the stator piece in the plate portion from radially inner side with third variation.

Fig. 9 is the side view of the stator piece in the plate portion from radially inner side with the 4th variation.

Figure 10 is the side view of the stator piece in the plate portion from radially inner side with 5th variation.

Specific embodiment

Hereinafter, being illustrated referring to embodiment illustrated of the attached drawing to the utility model.

In addition, in motor 500 and stator 110, the direction parallel with central axis CA is known as " axis in this specification To ".Also, the axial side from stator unit 100 towards rotor 200 in the axial direction, is known as " axial upside ", it will be from rotor 200 are known as " axial downside " towards the direction of stator unit 100.In addition, in the surface of each constituent element, it will be towards axial direction The face of upside is known as " upper surface ", will be known as " lower surface " towards the face of axial downside.

In addition, the direction vertical with central axis CA is known as " radial direction ".Also, it radially, will be towards the side of axis 300 To " radially inner side " is known as, the direction that will be far from axis 300 is known as " radial outside ".Also, in the side of each constituent element, It will be known as " inner peripheral surface " towards the side of radially inner side, " outer peripheral surface " will be known as towards the side of radial outside.

In addition, the direction of rotation centered on central axis CA is known as " circumferential direction ".Also, when from axial upside, Circumferential side as the direction of rotation of the dextrorotation centered on central axis CA is known as " clockwise circumferential direction CW ", by conduct The circumferential other side of left-handed direction of rotation centered on central axis CA is known as " circumferential CCW counterclockwise ".

In addition, the definition in direction discussed above and face is not offered as the position in the case where being assembled in actual equipment Set relationship and direction etc..

1. embodiment > of <

The structure > of < 1-1. motor

Fig. 1 is the cross-sectional view for showing the structural example of motor 500.In Fig. 1, using including the section including central axis CA Motor 500 is cut off.The motor 500 of Fig. 1 be, for example, air conditioner possessed by outer-rotor type fan motor.But motor 500 purposes is not limited to the illustration.

As shown in Figure 1, motor 500 has stator unit 100, rotor 200 and axis 300.

Stator unit 100 carries out rotation driving to rotor 200 when motor 500 drives.The structure of stator unit 100 is rear Face explanation.

Rotor 200 can be pivoted about with central axis CA.Rotor 200 has holding member 210 and magnet 220.Holding member 210 is the component kept to magnet 220.Holding member 210 includes plate portion 211 and cylindrical portion 212.Plate Portion 211 is the component of the annulus shape extended from axis 300 to radial outside.Cylindrical portion 212 is the component of tubular, from plate portion 211 Periphery in the axial direction downside extend.Magnet 220 is held in the inner peripheral surface of cylindrical portion 212, the outer peripheral surface pair with stator unit 100 It sets.

Axis 300 is to be installed on rotor 200 along central axis CA rotary shaft extended in the vertical direction, can with turn Son 200 rotates together with.In addition, being not limited to the illustration, axis 300 is also possible to be installed on the fixing axle of stator unit 100.In axis In the case that 300 is fixing axles, bearing 131 is set to rotor 200 to replace being set to stator unit 100.

The structure > of < 1-2. stator unit

Next, being illustrated referring to Fig.1 to the structure of stator unit 100.Stator unit 100 has stator 110, resin Shell 120, bearing retainer 130, bearing 131, substrate 140 and bracket 150.

Stator 110 has multiple stator pieces 1 in the ring-type centered on central axis CA as aftermentioned.In addition, stator The structure of piece 1 is explained below.

Stator 110 has stator core 111, insulating part 3 and multiple coil parts 112.Stator core 111 is cricoid iron Core components are made of multiple aftermentioned segmentation iron cores 2.Insulating part 3 is the material for having used resin material etc. to have electrical insulating property Component, cover stator core 111 at least part.Multiple coil parts 112 are by being wound in stator core across insulating part 3 111 conducting wire 112a is constituted.Conducting wire 112a is for example made of enamel paint cladding copper wire etc. by the metal wire that insulating element coats.When to When conducting wire 112a provides driving current, radial magnetic flux is generated in stator piece 1.Stator 110 makes rotor 200 using the magnetic flux Circumferential torque is generated, pivots about rotor 200 with central axis CA.

Resin enclosure 120 is, for example, the component that resin made of insert-molding is carried out to stator 110.Resin enclosure 120 At least part of stator 110 is covered using resin material.For example, resin enclosure 120 covers multiple stator pieces 1.As a result, can Enough protection stators 110 completely cut off the foreign matters such as water, the dust of the outside from motor 500.In addition, can be by resin enclosure 120 more It is securely that cricoid multiple stator pieces 1 are fixed to connection.

Bearing retainer 130 keeps bearing 131 in inside, can revolve the bearing of axis 300 via bearing 131 Turn.Bearing retainer 130 is not particularly limited, but be preferably used as the resin material of insulator, rubber material is formed.By This, is able to suppress bearing 131 and galvano-cautery occurs.In addition, bearing 131 for example can be ball bearing, it is also possible to sleeve bearing.

Substrate 140 is, for example, resin, positioned at the position than stator 110 by axial downside.Substrate 140 for example equipped with The electronic components such as Hall IC, the external lead 140a drawn with the conducting wire 112a of coil part 112 and to motor 500 are electrically connected.

Bracket 150 is installed on the lower end of resin enclosure 120.Bracket 150 can be metal, but preferably resin system 's.Thereby, it is possible to prevent bearing 131 from galvano-cautery occurs.

< 1-3. has the structure > of the stator of multiple stator pieces

Next, being illustrated to the structure of the stator 110 with multiple stator pieces 1.Fig. 2 is the knot for showing stator 110 The perspective view of structure example.Fig. 3 is that the multiple stator pieces 1 that will be linked as a whole are set as linear figure.In addition, in Fig. 2 and Fig. 3 In, for ease of understanding the structure of stator core 111, the diagram of coil part 112 is omitted.

Stator 110 has the multiple stator pieces 1 arranged in the circumferential centered on the above lower central axis CA extended.It constitutes The quantity of the stator piece 1 of stator 110 is 12 in the present embodiment, but is not limited to the illustration, can also be suitably changed.

Each stator piece 1 links as a whole via the aftermentioned linking part 31 of insulating part 3.Ring-type shown in Fig. 2 Stator 110 be bent to by the multiple stator pieces 1 (referring to Fig. 3) that will be linked as a whole annulus shape and by both ends that Obtained from this is linked up.

Each stator piece 1 includes segmentation iron core 2, is made of magnetic substance；The insulating part 3 of resin, covering segmentation iron Core 2；Conducting wire 112a constitutes coil part 112；Plate portion 4；And wall portion 5.

Segmentation iron core 2 is made of magnetic substance, e.g. the stacked steel plate structure by electromagnetic steel plate to be laminated in the axial direction At iron core member.Alternatively, segmentation iron core 2 is also possible to sintered magnetic substance.The segmentation iron core 2 of each stator piece 1 is constituted Stator core 111.In addition, each segmentation iron core 2 is seperated each other.

Fig. 4 is the top view of segmentation iron core 2.Segmentation iron core 2 has the core-back 21 that extends in the circumferential and from iron core The teeth portion 22 that back 21 radially extends.As shown in figure 4, teeth portion 22 has tooth base portion 221 and tooth front end 222.Tooth base portion 221 Extend from core-back 21 to radial outside.Tooth front end 222 is circumferentially prolonged to circumferential two sides from the front end of tooth base portion 221 It stretches.In addition, being separated between teeth portion 22 in adjacent stator piece 1 in the circumferential.In other words, adjacent tooth front end in the circumferential It is separated between 222.Conducting wire 112a is wound with across insulating part 3 in teeth portion 22.More specifically, conducting wire 112a is across insulation Part 3 and be wound in tooth base portion 221.Make to be electrically insulated between the teeth portion 22 of segmentation iron core 2 and conducting wire 112a by insulating part 3.

Insulating part 3 is, for example, resin, and at least part of segmentation iron core 2 is covered in each stator piece 1, is especially covered Lid teeth portion 22.Insulating part 3 is molding and carrying out inserts to segmentation iron core 2 in the present embodiment.In other words, insulating part 3 insert-moldings are in segmentation iron core 2.Alternatively, be not limited to the illustration, insulating part 3 can also with 2 split settings of segmentation iron core, such as It is also possible to be embedded in the component of the resin of segmentation iron core 2.

Insulating part 3 has linking part 31.Linking part 31 is the nonmagnetic materials such as resin material, by the tooth of adjacent stator piece 1 The front end in portion 22 is connected to each other.More specifically, linking part 31 is set to insulating part 3 circumferential the two of tooth front end 222 Adjacent tooth front end 222 is connected to each other by the end of side.Thereby, it is possible to prevent the teeth portion 22 in adjacent stator piece 1 Between via linking part 31 magnet short-cut path occurs.In addition, the material of linking part 31 is identical as insulating part 3 in the present embodiment, But it is not limited to the illustration, the material different from insulating part 3 also can be used.Also, linking part 31 can also divide with insulating part 3 Body.

The structure in plate portion 4 is explained below.

Wall portion 5 axially protrudes from segmentation iron core 2 and extends in the circumferential.More specifically, wall portion 5 is in core-back Upside is prominent in the axial direction for 21 axial upside, and downside is prominent in the axial direction on the downside of the axial direction of core-back 21.Wall portion 5 is set to iron The outer end at core back 21, and it is set to the position that radial outside is leaned on than plate portion 4.In the present embodiment, wall portion 5 is insulation A part of part 3 uses material identical with insulating part 3.It is however not limited to the illustration, wall portion 5 can also divide with insulating part 3 The material different from insulating part 3 also can be used in body.

The structure > in < 1-3-1. plate portion

Fig. 5 A~Fig. 5 C is the figure being illustrated for the structural example to plate portion 4.Fig. 5 A is the stator piece 1 with plate portion 4 Perspective view.Fig. 5 B is the top view for the stator piece 1 for having plate portion 4 from end on observation.Fig. 5 C is that have from radially inner side The side view of the stator piece 1 in plate portion 4.In addition, for ease of understanding structure, composition coil part is omitted in Fig. 5 A~Fig. 5 C The diagram of 112 conducting wire 112a.

Plate portion 4 is to being linked and fixed (referring to Fig. 2) between the core-back 21 of adjacent stator piece 1.At this point, in week Upwards, the side of adjacent core-back 21 substantially seamlessly contacts each other.In addition, the side of the core-back 21 in circumferential direction It may not be plane, but be preferably plane as present embodiment.It is in contact with each other in adjacent stator piece 1 as a result, The circumferential side of core-back 21 is plane.Therefore, when being cyclic annular by the connection of stator piece 1 of an entirety, such as can Inhibit the side of adjacent stator piece 1 to block each other, the side can be made further seamlessly to contact each other.In addition, Even if on the circumferential side of core-back 21, there are some convex-concaves, can also inhibit by flexible deformation of the side etc. Above-mentioned adverse effect.Therefore, the stator piece 1 of an entirety can be linked for the ring-type of closer positive round.

Plate portion 4 can also be only arranged at the side in the axial upside and axial downside of core-back 21, but be preferably provided with In the axial sides of core-back 21.The core-back 21 of adjacent stator piece 1 links in axial sides as a result, therefore can More precisely connection is ring-type.In the present embodiment, plate portion 4 includes the axis to the upper side first for being set to core-back 21 The second plate portion 40b of plate portion 40a and the axial downside for being set to core-back 21.In addition, the first plate portion 40a and the second plate portion The structure of 40b is explained below.

When from end on observation, the inner end 4a and outer end 4b in plate portion 4 are in the circular shape centered on central axis CA (referring to Fig. 2 and Fig. 5 B).The plate portion 4 of each stator piece 1 extends in the arc-shaped centered on central axis CA as a result,.Therefore, From end on observation, multiple stator pieces 1 can be arranged and be linked as the ring-type of closer positive round.

In addition, plate portion 4 has base portion 41, extension 42, protrusion 43 and recess portion 44.

Base portion 41 is arranged on the axial end face 210 in the face axial as the direction of core-back 21.The upper table of base portion 41 Face is located at the position than the upper surface of extension 42 by axial downside, and the two constitutes step.

Extension 42 circumferentially extends long from base portion 41 than core-back 21.In the core-back of adjacent stator piece 1 21 when linking up, and the radial outer end 42b of the extension 42 of a stator piece 1 in adjacent stator piece 1 is along another The wall portion 5 of a stator piece 1 extends.As a result, when being cyclic annular by the connection of multiple stator pieces 1 of entirety, by will be adjacent The outer end 42b of the extension 42 of a stator piece 1 in stator piece 1 is guided along the wall portion 5 of another stator piece 1, Can be more reliable and easily make protrusion 43 mobile towards recess portion 44.

In addition, extension 42 has extension curved surface 42a.Before extension curved surface 42a is set to the circumferential direction of extension 42 The end of radial outside in end, when from end on observation, to be that convex mode is bent towards the outside of extension 42.As a result, When by plate portion 4 by being linked up between the core-back 21 of adjacent stator piece 1, it can reduce and be prolonged by what wall portion 5 guided The friction of the medial surface of the front end and wall portion 5 of extending portion 42, also can prevent the front end of extension 42 from blocking in wall portion 5.Cause This, the front end of extension 42 is more swimmingly guided along wall portion 5.

In the present embodiment, protrusion 43 is set to extension 42, axially protrudes.More specifically, protrusion 43 is arranged In extension 42 towards on axially from extension 42 towards the face in the direction of core-back 21, axially to from extension Portion 42 is prominent towards the direction of core-back 21.

In the present embodiment, recess portion 44 is set to base portion 41, along axial depression.More specifically, recess portion 44 is set to Base portion 41 towards on axially from core-back 21 towards the face in the direction of base portion 41, axially to from 41 direction of base portion The direction of core-back 21 is recessed.

When the core-back 21 of adjacent stator piece 1 links up, a stator piece 1 in adjacent stator piece 1 Protrusion 43 is embedded in the recess portion 44 of another stator piece 1.As a result, by linking part 31 make to link as a whole it is multiple When stator piece 1 is annular in shape, by the way that the protrusion 43 of a stator piece 1 in adjacent stator piece 1 is embedded in another stator piece 1 Recess portion 44 in, will can easily be linked up between the core-back 21 of adjacent stator piece 1 by plate portion 4.Therefore, energy Enough the multiple stator pieces 1 to link as a whole are linked for the higher ring-type of circularity by simple structure.

Protrusion 43 has protrusion curved surface 43a.When from radial, core-back 21 protrusion curved surface 43a axial with direction Side is that convex mode is bent (referring to Fig. 5 C).It will connect between the core-back 21 of adjacent stator piece 1 by plate portion 4 as a result, When knot gets up, protrusion 43 is embedded in recess portion 44 while sliding raised part curved surface 43a.Therefore, it can be easier Protrusion 43 is embedded in recess portion 44 by ground.

Also, when from circumferential, protrusion curved surface 43a bending.Thereby, it is possible to protrusion curved surface 43a is set as domed shape.

The material in plate portion 4 is preferably identical as insulating part 3.In the present embodiment, plate portion 4 is a part of insulating part 3, is made With material identical with insulating part 3.As a result, for example when using insulating part 3 to cover segmentation iron core 2, it can also be arranged simultaneously Plate portion 4.Thereby, it is possible to simplify manufacturing process.

It is however not limited to the illustration, plate portion 4 can also be seperated with insulating part 3, and the material in plate portion 4 can also be with insulating part 3 It is different.For example, the material in plate portion 4 may not be the material with electrical insulating property, it is also possible to the metal materials such as stainless steel, aluminium Material.

In addition, at least extension 42 in plate portion 4 is preferably resin.As a result, by the extension of resin 42 to Protrusion 43 can be easily embedded in recess portion 44 by axial deflection.Thus, it is easy to pass through plate portion 4 for adjacent stator piece 1 It is linked up between core-back 21.

The structure > in the first plate portion < 1-3-2. and the second plate portion

Next, being illustrated to the structure of the first plate portion 40a and the second plate portion 40b.

First plate portion 40a is set to the axial upside of core-back 21, when from end on observation, from first axis face 210a to Clockwise circumferential direction CW extends.As shown in Figure 5 C, the first plate portion 40a has the first base portion 411, the first extension 421, first convex Portion 431 and the first recess portion 441.First base portion 411 is set to the first axis end face as the upper surface of core-back 21 On 210a.The end of the circumferential CCW counterclockwise of first extension 421 is set to the axial upside of the first base portion 411.First prolongs The end of the clockwise circumferential direction CW of extending portion 421 is extended to than core-back 21 from the first base portion 411 by clockwise circumferential direction CW Position.In the present embodiment, the first protrusion 431 is set to the end of the clockwise circumferential direction CW of the first extension 421 Lower surface, downside is prominent in the axial direction.In the present embodiment, the first recess portion 441 is set to the upper surface of the first base portion 411, to Axial downside recess.

Second plate portion 40b is set to the axial downside of core-back 21, when from end on observation, from the second axial face 210b to Circumferential CCW counterclockwise extends.As shown in Figure 5 C, the second plate portion 40b has the second base portion 412, the second extension 422, second Protrusion 432 and the second recess portion 442.Second base portion 412 is set to the second axial end face of the lower surface as core-back 21 On 210b.The end of the clockwise circumferential direction CW of second extension 422 is set to the axial downside of the second base portion 412.Second prolongs The end of the circumferential CCW counterclockwise of extending portion 422 is extended to than core-back 21 from the second base portion 412 by circumferential direction counterclockwise The position of CCW.In the present embodiment, the second protrusion 432 is set to the end of the circumferential CCW counterclockwise of the second extension 422 The upper surface in portion, upside is prominent in the axial direction.In the present embodiment, the second recess portion 442 is set to the following table of the second base portion 412 Face, upside is recessed in the axial direction.

When the core-back 21 of adjacent stator piece 1 links up, the first protrusion 431 is embedded in clockwise circumferential direction In first recess portion 441 of the stator piece 1 of the upper arranged adjacent of CW.It is embedded in the first recess portion 441 on circumferential CCW counterclockwise First protrusion 431 of the stator piece 1 of arranged adjacent.In addition, the second protrusion 432 be embedded in it is adjacent on circumferential CCW counterclockwise In second recess portion 442 of the stator piece 1 of arrangement.The arranged adjacent on clockwise circumferential direction CW is embedded in the second recess portion 442 Stator piece 1 the second protrusion 432.

When as a result, from end on observation, the first plate portion 40a and the second plate portion 40b's is located at than core-back 21 by week outward The end of the position of side is respectively to circumferential not ipsilateral extension.Therefore, the first plate portion 40a and the second plate portion of mold have been used The molding of 40b becomes easy.For example, by the first plate portion 40a and the second plate portion 40b and insulating part 3 and can divide using mold Iron core 2 is cut together after insert-molding, upside and axial downside are extracted in the axial direction by mold.

The variation > in < 1-4. plate portion

Next, being illustrated to the variation in plate portion 4.In addition, in the following description, to above-mentioned embodiment Identical element marks identical label.In addition, omitting the explanation of structure identical with above-mentioned embodiment sometimes.

< 1-4-1. first variation >

Fig. 6 is the perspective view with the stator piece 1 in plate portion 4 of first variation.In addition, in Fig. 6, for ease of understanding Structure omits the diagram for constituting the conducting wire 112a of coil part 112.

In first variation, in protrusion 43, protrusion curved surface 43a is only bent in the circumferential.That is, when from radial, Protrusion curved surface 43a is to be that convex mode is bent towards axial 21 side of core-back, and when from circumferential, protrusion curved surface 43a is not Bending, for example, it is square-shaped.As a result, when by plate portion 4 by being linked up between the core-back 21 of adjacent stator piece 1, Protrusion 43 can be embedded in recess portion 44 while sliding raised part curved surface 43a.It therefore, can be easily by protrusion 43 are embedded in recess portion 44.

The second variation of < 1-4-2. >

Fig. 7 is the side view of the stator piece 1 in the plate portion 4 from radially inner side with the second variation.In addition, in Fig. 7 In, for ease of understanding structure, the diagram for constituting the conducting wire 112a of coil part 112 is omitted.

In the second variation, in plate portion 4, protrusion 43 is set to base portion 41, and recess portion 44 is set to extension 42.Scheming In 7, protrusion 43 be set to base portion 41 towards on axially from core-back 21 towards the face in the direction of base portion 41, and to The direction is prominent.In addition, recess portion 44 be set to extension 42 towards axially from extension 42 towards core-back 21 On the face in direction, and axially it is recessed to from core-back 21 towards the direction of extension 42.

In addition, in the first plate portion 40a, the first protrusion 431 is set to the first base portion 411 if further illustrating Upper surface, upside is prominent in the axial direction.In addition, the first recess portion 441 is set to the lower surface of the first extension 421, upside in the axial direction Recess.In the second plate portion 40b, the second protrusion 432 is set to the lower surface of the second base portion 412, and downside is prominent in the axial direction.Separately Outside, the second recess portion 442 is set to the upper surface of the second extension 422, in the axial direction downside recess.In addition, first is recessed in Fig. 7 First extension 421, the second extension 422 are penetrated through in the axial direction respectively, but are not limited to the example by portion 441, the second recess portion 442 Show, can not also penetrate through and be recessed as bottomed tube.

As a result, when being linked up the core-back 21 of adjacent stator piece 1 by plate portion 4, by adjacent stator piece 1 In the protrusion 43 of a stator piece 1 be embedded in the recess portion 44 of another stator piece 1.The iron core of adjacent stator piece 1 as a result, It is easily linked up between back 21 by plate portion 4.Therefore, the multiple stator pieces 1 to link as a whole can pass through Simple structure and link for the higher ring-type of circularity.

< 1-4-3. third variation >

Fig. 8 is the side view of the stator piece 1 in the plate portion 4 from radially inner side with third variation.In addition, in Fig. 8 In, for ease of understanding structure, the diagram for constituting the conducting wire 112a of coil part 112 is omitted.

In the 3rd variation, recess portion 211 is set to the axial end face 210 of core-back 21, axially to from plate portion 4 It is recessed towards the direction of core-back 21.Plate portion 4 has extension 42 and protrusion 43.A circumferential end for extension 42 is set It is placed on axial end face 210, another circumferential end of extension 42 is from axial end face 210 circumferentially to towards iron core The direction of the outside at back 21 extends.When the core-back 21 of adjacent stator piece 1 links up, in adjacent stator piece 1 The protrusion 43 of a stator piece 1 be embedded into the recess portion 211 on the axial end face 210 for being set to another stator piece 1.

If further illustrating, core-back 21 has the first recess portion 2111 and the second recess portion 2112.First recess portion 2111 are set to the first axis end face 210a of core-back 21, in the axial direction downside recess.Second recess portion 2112 is set to iron core The second axial end face 210b at back 21, upside is recessed in the axial direction.

First plate portion 40a has the first extension 421 and the first protrusion 431.The circumferential direction counterclockwise of first extension 421 The end of CCW is set on the first axis end face 210a of core-back 21.The clockwise circumferential direction CW's of first extension 421 End is extended to than core-back 21 from the 210a of first axis end face to the position of clockwise circumferential direction CW.First protrusion 431 It is set to the lower surface of the end of the clockwise circumferential direction CW of the first extension 421, downside is prominent in the axial direction.

Second plate portion 40b has the second extension 422 and the second protrusion 432.The clockwise circumferential direction of second extension 422 The end of CW is set on the second axial end face 210b of core-back 21.The circumferential CCW's counterclockwise of second extension 422 End is extended to than core-back 21 from the second axial end face 210b by the position of circumferential CCW counterclockwise.Second protrusion 432 It is set to the upper surface of the end of the circumferential CCW counterclockwise of the second extension 422, upside is prominent in the axial direction.

When the core-back 21 of adjacent stator piece 1 links up, the first protrusion 431 is embedded in clockwise circumferential direction In first recess portion 2111 of the stator piece 1 of the upper arranged adjacent of CW.It is embedded in the first recess portion 2111 in circumferential CCW counterclockwise First protrusion 431 of the stator piece 1 of upper arranged adjacent.In addition, the second protrusion 432 is embedded in the phase on circumferential CCW counterclockwise In second recess portion 2112 of the stator piece 1 of neighbour's arrangement.It is embedded in the second recess portion 2112 adjacent on clockwise circumferential direction CW Second protrusion 432 of the stator piece 1 of arrangement.

Thereby, it is possible to by simple structure by with the multiple stator pieces 1 to link as a whole link for circularity it is higher Ring-type.

The 4th variation > of < 1-4-4.

Fig. 9 is the side view of the stator piece 1 in the plate portion 4 from radially inner side with the 4th variation.In addition, in Fig. 9 In, for ease of understanding structure, the diagram for constituting the conducting wire 112a of coil part 112 is omitted.

In the 4th variation, protrusion 212 is set to the axial end face 210 of core-back 21, axially to from iron core The direction in back 21 towards plate portion 4 is prominent.Plate portion 4 has extension 42 and recess portion 44.A circumferential end for extension 42 It is set on axial end face 210, another circumferential end of extension 42 is from axial end face 210 circumferentially to towards iron The direction of the outside at core back 21 extends.When the core-back 21 of adjacent stator piece 1 links up, it is set to and adjacent determines Protrusion 212 on the axial end face 210 of a stator piece 1 in sub-pieces 1 is embedded in the recess portion 44 of another stator piece 1.

If further illustrating, core-back 21 has the first protrusion 2121 and the second protrusion 2122.First protrusion 2121 are set to the first axis end face 210a of core-back 21, and upside is prominent in the axial direction.Second protrusion 2122 is set to iron core The second axial end face 210b at back 21, downside is prominent in the axial direction.

First plate portion 40a has the first extension 421 and the first recess portion 441.The circumferential direction counterclockwise of first extension 421 The end of CCW is set on the first axis end face 210a of core-back 21.The clockwise circumferential direction CW's of first extension 421 End extends to the position that clockwise circumferential direction CW is depended on than core-back 21 from the 210a of first axis end face.First recess portion 441 It is set to the lower surface of the end of the clockwise circumferential direction CW of the first extension 421, in the axial direction upside recess.

Second plate portion 40b has the second extension 422 and the second recess portion 442.The clockwise circumferential direction of second extension 422 The end of CW is set on the second axial end face 210b of core-back 21.The circumferential CCW's counterclockwise of second extension 422 End is extended to than core-back 21 from the second axial end face 210b by the position of circumferential CCW counterclockwise.Second recess portion 442 It is set to the upper surface of the end of the circumferential CCW counterclockwise of the second extension 422, in the axial direction downside recess.

In addition, the first recess portion 441, the second recess portion 442 are respectively in the axial direction by the first extension 421, second in Fig. 9 Extension 422 penetrates through, but is not limited to the illustration, can not also penetrate through and be recessed as bottomed tube.

When the core-back 21 of adjacent stator piece 1 links up, the first protrusion 2121 was embedded in week counterclockwise To on CCW in the first recess portion 441 of the stator piece 1 of arranged adjacent.It is embedded in the first recess portion 441 in clockwise circumferential direction CW First protrusion 2121 of the stator piece 1 of upper arranged adjacent.In addition, the second protrusion 2122 is embedded in the phase on clockwise circumferential direction CW In second recess portion 442 of the stator piece 1 of neighbour's arrangement.The adjacent row on circumferential CCW counterclockwise is embedded in the second recess portion 442 Second protrusion 2122 of the stator piece 1 of column.

Thereby, it is possible to by simple structure by the multiple stator pieces 1 to link as a whole link for circularity it is higher It is cyclic annular.

< 1-4-5. 5th variation >

Figure 10 is the side view of the stator piece 1 in the plate portion 4 from radially inner side with 5th variation.In addition, scheming In 10, for ease of understanding structure, the diagram for constituting the conducting wire 112a of coil part 112 is omitted.

In 5th variation, the upper surface of base portion 41 has inclined surface 41a, and the lower surface of extension 42 has inclined surface 42c.In addition, protrusion 43 is set to the inclined surface 42c of extension 42, recess portion 44 is set to the inclined surface 41a of base portion 41.Adjacent The core-back 21 of stator piece 1 when being linked up by plate portion 4, the inclined surface 41a of the base portion 41 of a stator piece 1 and another The inclined surface 42c of the extension 42 of one stator piece 1 is contacted in parallel with each other.

If further illustrating, in the first plate portion 40a, the upper surface of the first base portion 411 and the first extension 421 Lower surface is with towards clockwise circumferential direction CW and in the axial direction incline upward.Is provided on the upper surface of the first base portion 411 One recess portion 441.The first protrusion 431 is provided on the lower surface of the first extension 421.

In addition, the lower surface of the upper surface of the second base portion 412 and the second extension 422 is with court in the second plate portion 40b The downside inclination in the axial direction to circumferential CCW counterclockwise.The second recess portion 442 is provided on the lower surface of the second base portion 412.? The second protrusion 432 is provided on the upper surface of second extension 422.

When the core-back 21 of adjacent stator piece 1 is linked up by plate portion 4, the upper surface of the first base portion 411 It is contacted in parallel with each other with the lower surface of first extension 421 of the stator piece 1 of arranged adjacent on circumferential CCW counterclockwise. The upper table of the lower surface of first extension 421 and the first base portion 411 of the stator piece 1 of arranged adjacent on clockwise circumferential direction CW Face contacts in parallel with each other.In addition, the stator piece of the lower surface of the second base portion 412 and the arranged adjacent on clockwise circumferential direction CW The upper surface of 1 the second extension 422 contacts in parallel with each other.The upper surface of second extension 422 in circumferential direction counterclockwise The lower surface of first base portion 412 of the stator piece 1 of the upper arranged adjacent of CCW contacts in parallel with each other.

As a result, when the core-back 21 of adjacent stator piece 1 is linked up by plate portion 4, in adjacent stator piece 1 The protrusion 43 of a stator piece 1 be easier to be embedded in the recess portion 44 of another stator piece 1.Therefore, it can be incited somebody to action by plate portion 4 It is more easily linked up between the core-back 21 of adjacent stator piece 1.

Other > of < 2.

More than, the embodiments of the present invention is illustrated.In addition, the scope of the utility model be not limited to it is above-mentioned Embodiment.The utility model can apply in the range of not departing from the purport of utility model various changes and be implemented.Separately Outside, in the above-described embodiment illustrated item can in the range of not generating contradiction appropriate any combination.

The present invention is determining for the motor of stator made of ring-type to having the multiple stator pieces that will be arranged in the circumferential connection Subelement is very useful.

Claims (12)

1. a kind of stator,

The stator has the multiple stator pieces arranged in the circumferential centered on the above lower central axis extended,

Each stator piece has the insulating part of the segmentation iron core and resin that are made of magnetic substance,

The insulating part covers the segmentation iron core,

The segmentation iron core has core-back and teeth portion,

The core-back extends in the circumferential,

The teeth portion is radially extended from the core-back, is wound for conducting wire across the insulating part,

The stator is characterized in that,

The insulating part has linking part,

The front end of the teeth portion of the adjacent stator piece is connected to each other by the linking part,

Each stator piece has plate portion,

The plate portion will link up between the core-back of the adjacent stator piece,

The plate portion has base portion, extension, protrusion and recess portion,

The base portion is set on the axial end face of the core-back,

The extension circumferentially extends long from the base portion than the core-back,

The protrusion axially protrudes,

The recess portion along axial depression,

A side in the protrusion and the recess portion is set to the axial end face of the base portion or the core-back,

Another party in the protrusion and the recess portion is set to the face of the core-back side of the direction axial direction in the plate portion,

The protrusion of a stator piece in the adjacent stator piece is embedded in the described of another stator piece In recess portion.

2. stator according to claim 1, which is characterized in that

The material in the plate portion is identical as the insulating part.

3. stator according to claim 2, which is characterized in that

At least described extension in the plate portion is resin system.

4. stator according to claim 3, which is characterized in that

When from end on observation, the end of the radially inner side in the plate portion and the end of radial outside are in centered on central axis Circular shape.

5. stator according to claim 4, which is characterized in that

With the axial core-back side of direction for the convex curved protrusion curved surface of mode when the protrusion has from radial.

6. stator according to claim 5, which is characterized in that

When from circumferential, the protrusion curved surface is also bent.

7. stator according to claim 6, which is characterized in that

Each stator piece has the wall portion for axially protruding and extending in the circumferential,

The wall portion is set to the position that radial outside is leaned on than the plate portion,

The end of the radial outside of the extension of a stator piece in adjacent stator piece is along another stator piece The wall portion extends.

8. stator according to claim 7, which is characterized in that

To be that the curved extension of convex mode is bent towards the outside of the extension when extension has from end on observation Face,

The extension curved surface is set to the end of the radial outside in the circumferential front end of the extension.

9. stator according to claim 8, which is characterized in that

In each stator piece,

The insulating part be to the segmentation iron core carry out inserts and it is molding,

The plate portion is a part of the insulating part.

10. stator according to claim 9, which is characterized in that

The plate portion includes:

First plate portion is set to the axial side of the core-back；And

Second plate portion is set to the axial other side of the core-back,

When from end on observation,

First plate portion extends from the first axis of the axial side of the core-back towards circumferential side,

Second plate portion is axially facing the circumferential other side from the second of the axial other side of the core-back and extends.

11. stator according to claim 10, which is characterized in that

The circumferential side of the core-back is plane.

12. stator according to claim 11, which is characterized in that

The linking part is nonmagnetic material.