CN205489838U - External -rotor motor used in machine - Google Patents

Abstract

End cover and operatable one -tenth that external -rotor motor used in machine, this external rotor electric machine include the stator, are used for to supply the stator to use are favorable to the stator to install the stator base on the machine. The end cover is including the wiring structure who lays who does benefit to the stator wiring. This structure to pass its wiring groove of laying the wiring route of wiring including injecing. The at least part of this wiring groove is fixed a position in the radial inboard of iron core and including being located the bottom between the iron core border. This wiring groove still includes at radial inboard and iron core spaced apartly and for bottom part outstanding side axially at least. The stator base lies in the wiring route on radial.

Description

For the external rotor electric machine used in the machine

Technical field

This utility model relates generally to the motor for using in the machine.More specifically, this utility model relates to the external rotor electric machine of at least partially radially spaced apart stator in a kind of inside being included in rotor.

Background technology

It should be appreciated by those skilled in the art that in the household electrical appliance that motor is frequently utilized for such as dish-washing machine, washing machine and ceiling fan.Additionally, motor is frequently utilized in the civilian and warm air conditioning system of business confession and other application various.Although various electric machine part arrangement can be used, but motor known embodiment includes the stator that is at least partially positioned at the radially inner side of rotor.There is the so-called external rotor electric machine of motor or the external rotor motor of this configuration, although other titles can be used.

The stator of external rotor electric machine generally includes iron core and multiple coil.Generally, iron core is that generally annular in shape and by such as ferrum or steel feeromagnetic metal forms.Iron core typically comprises multiple teeth that are prominent radially outward and that define slot betwixt.Coil is repeatedly formed to fill described slot at least in part each tooth is wound around by conductor wire.

There are the various technology for line being distributed in around iron core (such as, from a tooth to another tooth).But, this type of technology is time-consuming, expensive, and is susceptible to mistake.Additionally, this type of technology makes line easily damage, loosening and displacement, consequently, it is possible to cause electrical fault.

Utility model content

According to an aspect of the present utility model, it is provided that a kind of external rotor electric machine for using in the machine.This motor include can around the rotor that an axis rotates, in the inside of rotor at least partially radial spaced apart stator and include the end cap of wire structures of laying (route) of beneficially wiring.Stator includes the general toroidal iron core with the iron core edge being axially spaced.Stator also includes the wiring being wound on around iron core.This structure includes the wiring groove limiting the wiring path through its laying wiring.This groove is at least partially positioned at the radially inner side of iron core.This groove includes the bottom between iron core edge.This groove is included in that radially inner side is spaced apart with iron core and axially projecting side at least part of relative to bottom.

Owing to including that the wire structures of wiring groove provides many advantages, described wiring groove limits the wiring path through its laying wiring, wherein this groove is at least partially positioned at the radially inner side of iron core, including the bottom between iron core edge, and it is included in that radially inner side is spaced apart with iron core and axially projecting side at least part of relative to bottom.Such as, structure of the present utility model make wiring can efficiently, inexpensively and with high accuracy be distributed in around iron core.Additionally, this arrangement provides pair of connecting wires environment or structural damage, loosens and the protection of displacement；Thus, bring again the motor reliability of raising.

According to another aspect of the present utility model, it is provided that a kind of external rotor electric machine for using in the machine.This motor include can around the rotor that an axis rotates, in the inside of rotor at least partially radial spaced apart stator, be at least partially positioned at the end cap of the radially inner side of iron core and be operable to the stator base that beneficially stator is arranged on machine.Stator includes wiring.End cap includes the wire structures of the laying of beneficially wiring.This structure includes the wiring groove limiting the wiring path through its laying wiring.Stator base is radially positioned in wiring path.

The setting being radially positioned the stator base in the connection path limited by the wiring groove of wire structures provides many advantages.Such as, this feature makes it possible to effectively to utilize space and reduces the existence of barrier of radially inner side to greatest extent.It is to say, stator limits the on-demand offer accessible, the opening of general toroidal for the space of other motor and/or mechanical component.Therefore, the overall size of motor envelope can be reduced.

This utility model content introduces theory of the present utility model in simplified form.These concepts are further described below in detailed description of the preferred embodiment.This utility model content is not intended to determine key feature or the principal character of claimed theme, is also not intended to the scope for limiting claimed theme.

Other aspects various of the present utility model and advantage will become obvious from the following detailed description to preferred embodiments and drawings.

Accompanying drawing explanation

Below with reference to the accompanying drawings a preferred embodiment of the present utility model is described in detail, in the accompanying drawings:

Fig. 1 is the bottom perspective view of the motor according to a preferred embodiment of the present utility model；

Fig. 2 is the top perspective of the motor of Fig. 1；

Fig. 3 is stator and the bottom perspective view of end cap of Fig. 1 and 2；

Fig. 4 is stator and the exploded bottom perspective view of end cap of Fig. 1-3；

Fig. 5 is stator and the bottom view of end cap of Fig. 1-4, and its coil and cover cap are removed；

Fig. 6 is stator and the side cross-sectional view of end cap of Fig. 1-5 of the line 6-6 intercepting along Fig. 5, and its coil and cover cap are removed；

Fig. 6 a is the amplification side cross-sectional view of a part for the stator of Fig. 6 and end cap, and wherein cover cap is resumed；

Fig. 7 is the bottom perspective view of the cutting stator of Fig. 6, and its coil and cover cap are removed；

Fig. 8 is the exploded bottom perspective view of stator core and end cap, and wherein cover cap is removed；And

Fig. 9 is stator core and the exploded top perspective view of end cap (wherein cover cap is removed) of Fig. 8.

This utility model is not limited to specific embodiment disclosed and described herein by accompanying drawing.Accompanying drawing is not drawn necessarily to scale, but focuses on the principle being clearly shown that preferred embodiment.

Detailed description of the invention

This utility model allows the embodiment of multiple multi-form.Although accompanying drawing illustrates and description describes some preferred embodiment of the present utility model, it should be appreciated that such disclosure is only by means of example.It is not intended to the embodiment being limited to principle of the present utility model specifically disclose.

Moreover, it will be appreciated that as used in this article direction term (such as, top, bottom, top, bottom, forward and backward etc.) should only understand under about linguistic context each other.Such as, in embodiments more of the present utility model, the referred to as component of upper component can be lower member the most on the contrary.

With reference first to Fig. 1 and 2, it is depicted as at machine, apparatus or electrical equipment, (such as, household electrical appliance, such as dish-washing machine, washing machine or ceiling fan according to the motor 10 that a preferred embodiment of the present utility model is constituted；Civilian or business supplies warm air conditioning system；Health and fitness facilities；Etc.) middle use.

As usual, motor 10 broadly includes rotor 12 and stator 14.Motor 10 preferably external rotor electric machine 10, wherein stator 14 is the most spaced apart in the inside of rotor 12.

Rotor 12 is included in machine and connects the rotatable shaft 16 being connected with rotor can 18 at end 20.More specifically, in the preferred embodiment shown in Fig. 1 and 2, rotor can 18 includes: the most radially extending inner side hub 22；The most radially extending lateral wall 24；And the base portion 26 substantially radially extending between hub 22 and sidewall 24 and they being interconnected.Axle 16 interconnects with hub 22 preferably by means of coupling 28.

In a preferred embodiment, as it can be seen, coupling 28 is to include multiple internal spline 30 and the metal couplings of multiple external splines 32.The motor of axle 16 connects end 20 and includes multiple external splines 34 (seeing Fig. 1) that the internal spline 30 with coupling 28 engages.Similarly, hub 22 preferably includes multiple internal splines 36 that the external splines 32 with coupling 28 engages.Axle 16, coupling 28 and rotor can 18 the most preferably interconnect with axle 16 in the such mode that rotates against retrained therebetween, and coupling 28 and rotor can 18 rotate the most integratedly.It should be noted that to add other suitable device multiple to be fixed rotatably by each component.

Rotor can 18 plastic member the most Overmolded on coupling 28；But, principle of the present utility model is equally applicable to other rotor can design and fabrication technology.

Rotor 12 the most also includes the grommet 38 extended circumferentially over upon supported by rotor can 18.More specifically, sidewall 24 preferably limits the passage 40 extended circumferentially over upon of storage grommet 38.

Preferably, grommet 38 includes sheet metal or the metal tape being wound around to limit multilamellar the most continuously.(for clarity sake, each layer of not shown grommet 38.) preferably, this metal includes ferrum.But, only include monolayer and/or include that the ring of one or more materials in various material is in the range of this utility model.

Rotor 12 the most also includes multiple magnet 42.Preferably, magnet 42 is to comprise neodymium or the permanent magnet of another kind of suitably material.The sidewall of rotor can 18 preferably limits multiple magnet slots 44 being circumferentially spaced of the radially inner side of the passage 40 being positioned at storage grommet 38.Magnet slot 44 preferably receives corresponding magnet 42.

Magnet slot 44 is preferably positioned to and magnet 42 is preferably shaped to the circular gap 46 so that limiting between magnet 42 and stator 14.But, magnet 42 is in the range of this utility model in order to the various modes being properly located.

Additionally, passage 40 is preferably positioned to and grommet 38 is preferably shaped to so that grommet 38 is arranged on the radial outside of magnet 42 and is close to magnet 42 (most preferably, contacting) with magnet 42.Thus, both magnet 42 and grommet 38 encirclement stator 14 in spaced apart relation.

Although the above-mentioned substantially configuration of rotor 12 is preferred, it should be noted that various external rotor electric mechanism type is in the range of this utility model.

In a preferred embodiment, stator 14 includes the iron core 48 of general toroidal and is wound on around iron core 48 to form the wiring 50 of multiple coils 52.In preferred embodiment as depicted, iron core 48 has the upper and lower edge 54 and 56 that are axially spaced respectively and the radially inner most being radially spaced apart respectively and outermost side face 58 and 60.

As best shown in Fig. 8 and 9, iron core 48 preferably includes multiple radially projecting tooth 62, and each tooth includes the tooth yoke (yoke) 64 substantially extended, the arm 66 substantially radially extended from tooth yoke 64 and the crown 68 substantially extended in circular arc from arm 66 in circular arc.Tooth yoke 64 preferably interconnects and jointly has inside circumference 58, and arm 66 and crown 68 are spaced apart in circular arc limit groove 76.Each tooth 62 has end face 70, following 72 and two sides 74.The crown 68 of tooth 62 has outermost side face 60 jointly, and therefore this outermost side face is discontinuous.

Stator core 48 preferably includes ferromagnetic material and the preferably laminar structure of such as steel.But, iron core 48 includes alternate material and has replacing structure and be in the range of this utility model.Such as, iron core 48 may be integrally formed, and is made up of ferrum, including tooth 62 from its prominent continuous circular shape foundation ring, or is combined as feature with these or other modification known to those skilled in the art.

Wiring 50 preferably comprise conductive material and each single tooth 62 wound around repeatedly with formed stator 14 corresponding coil 52.Wiring 50 mainly includes multiple aluminum steel, although using other kinds of conductor wire (such as copper cash) to be in the range of this utility model.Described line can arrange or be not provided with coating.(it should be noted that coil 52 only symbolically illustrates and is the most removed from tooth 62.But, in practice, coil 52 will be arranged on each tooth 62 and will include multiple windings of wiring 50.) as usual, wiring 50 is wound on around tooth 62 with specific pattern according to the phase (phasing) of determining of motor 10, as further described below.

Motor 10 the most also includes end cap 78 and stator base 80.Other details of the preferred embodiment of end cap 78 and stator base 80 will be described in greater detail subsequently.

In a preferred embodiment, end cap 78 includes the wire structures 82 of laying of beneficially wiring 50.Wire structures 82 preferably includes the wiring groove 84 limiting the wiring path 86 through its laying wiring 50.The details of this laying is difference (expectation winding pattern such as, to be promoted) by the detail according to motor 10.But, Fig. 4 provides the schematic diagram illustrating the wiring 50 (in order to clear, wiring is truncated) extending through routing path 86.

Preferably, groove 84 is at least partially positioned at the radially inner side of iron core 48.More specifically, groove 84 preferably includes radially inner side face 88, radial outer side 90 and the bottom 92 extending between side 88 and 90 and they being interconnected.It should be particularly noted that such as brief description above, in a preferred embodiment, so-called bottom 92 can be oriented to as upper component (that is, top).Such as, as it can be seen, groove 84 is down groove, wherein an alastrim plate of groove 84 is formed when seeing in the case of shown motor orientation on bottom 92.

Bottom 92 is preferably located between the upper and lower edge 54 and 56 of iron core 48, and side 88 and 90 is all preferably positioned as the radially inner side of iron core 48.More specifically, it is preferable to medial surface 88 is spaced apart with iron core 48 at radially inner side, and radially inner most side face 58 phase of lateral surface 90 and iron core 48 is abutted against.

Side 88 and 90 all at least partly axially highlights preferably relative to bottom 92.Most preferably, side 88 and 90 is the most overall substantially axially prominent and the most parallel to each other relative to bottom 92.Part or all of one of them of two sides can highlight in the most non axial (such as, stepped) mode, or part or all of each side can be not parallel, but without departing from aspects more of the present utility model.Such as, each side is alternatively assembled towards bottom so that the summit that bottom is substantially limited synergistically by each side.

Although medial surface 88 and lateral surface 90 are arranged to limit groove 84 for You Xuan, it should be noted that according to aspects more of the present utility model, it is allowed in the case of there are not two sidewalls, limit this groove and then limit link footpath self.Such as, iron core self (more specifically, inner peripheral surface of iron core) can instead coordinate with inner side and bottom to form the groove lacking the outer wall limited by end cap.

Preferably, groove 84 generally circumferentially extends and the most continuous so that wiring 50 can be laid in around iron core 48 continuously.

Preferably respectively there is the top being axially spaced and bottom margin 94 and 96 in medial surface 88.Similarly, lateral surface 90 there is preferably the top being axially spaced and bottom margin 98 and 100.Bottom 82 preferably extends between bottom margin 96 and 100 and they is interconnected.But, according to aspects more of the present utility model, allow any one in side or two structures being included in bottom part down extension, make bottom on mid portion, top or side/diverse location (such as, a bottom margin and a mid portion) of side between extend and they interconnected.

Preferably, substantially feel relieved between the upper and lower edge, upper and lower edge 54 and 56 54 and 56 of iron core 48 in bottom 92.But, bottom 92 be partial in edge 54 and 56 up and down any one be in the range of aspects more of the present utility model.

In a preferred embodiment, as it can be seen, the top 94 and 98 of side 88 and 90 is the most axially offset from each other.For more specifically, it is preferable to, the top 94 of medial surface 88 is the most recessed relative to the top 98 of lateral surface 90.In other words, medial surface 88 is shorter than lateral surface 90 the most in the axial direction.

End cap 78 the most also includes cover cap 102.Cover cap 102 is preferably configured so that, when on the remainder being fixed on end cap 78, cover cap 102 and wire structures 82 the most at least substantially surround wiring path 86.Cover cap 102 is preferably fixed on the remainder of end cap 78 by multiple securing members 104 (most preferably screw), described securing member extend through the fastener receptacle holes 106 in cover cap 102 and extend to end cap 78 remainder in respective fastener receive in aperture 108.Cover cap 102 and fixing on the remainder of end cap 78 thereof are described more fully below.

In a preferred embodiment, end cap 78 respectively further comprises upper and lower section 78a and 78b in addition to cover cap 102.The configuration of upper and lower section 78a, 78b is described more fully below.

End cap 78 the most also includes two grades/additional wire structures 110.Two grades of wire structures 110 preferably include spaced apart in circular arc respectively, the contact pin 116 and 118 that substantially axially extends of first group 112 and second group 114 of top respectively.Two grades of wire structures 110 the most also include the first barrier 120 of bottom and second group of 122 contact pin 126 spaced apart in circular arc, that substantially axially extend of bottom, the wall 124 that the first barrier of described bottom includes the most continuously, substantially axially extends.The first and second contact pin groups 112 and 114 on top are the most radially spaced apart from one another to limit auxiliary connection path, top 128 betwixt, and the second contact pin group 120 and 122 of the first barrier of bottom and bottom is the most radially spaced apart from one another to limit the auxiliary connection path 130 of bottom betwixt.

The first and second contact pin groups with bottom on top or the contact pin of barrier 112,114,120,122 or wall 116,118,124,126 the most all deviate from iron core 48 and axially extend.More specifically, the contact pin 116 and 118 of the first and second contact pin groups 112 and 114 on top respectively preferably deviates from the upper axial edge 54 of iron core 48 and axially extends, and the axial edge, bottom 56 that the wall 124 of the second contact pin group 120 and 122 of the first barrier of bottom and bottom and contact pin 126 respectively preferably deviate from iron core 48 axially extends.Auxiliary connection path 128 and 130 each of upper and lower is it is therefore preferred to be positioned at the radial outside at the edge 54 and 56 of iron core 48.

Additionally, each auxiliary connection path 128 and 130 is preferably provided in the radial outside of the inside circumference 58 of iron core 48.Most preferably, auxiliary connection path 128 and 130 the most preferably covers the tooth yoke 64 of iron core 48.

End cap 78 the most also includes three grades of wire structures 132.Three grades of wire structures 132 preferably include the second contact pin group 114 and the 3rd contact pin group 134 on top on top, and the second contact pin 122 of bottom and the 3rd contact pin group 136 of bottom.Top and the 3rd contact pin group 134 and 136 of bottom preferably respectively include multiple, contact pin 138 and 140 radially spaced apart in circular arc.

Top second and the 3rd contact pin group 114 and 134 the most radially spaced apart from one another.Bottom second and the 3rd contact pin group 122 and 136 the most radially spaced apart from one another.Top and the second of bottom and the 3rd contact pin group 114,122,134,136 preferably jointly limit the coil tracks of multiple general toroidal betwixt.(coil tracks 142 extends through the above-mentioned slot 34 being formed between tooth 62.) coil 52 is preferably wound on around tooth 62 in coil tracks 142.

Three grades of wire structures 82 be particularly suitable for retraining radially inwardly and outwardly the moving of coil 52 (such as, including specific one coil 52 wiring 50 radially-inwardly or slide in and out or deviate).

The contact pin 116,118,126,138,140 often organized can be equal to each other or can be different from each other.Such as, the contact pin 138 and 140 of the 3rd contact pin group 134 and 136 is equal to the most each other.Comparatively speaking, the size and dimension of the contact pin 118 and 126 of the contact pin 116 of the first contact pin group 112 on top and the second contact pin group 114 and 122 is respectively preferably often organizing interior difference.Preferably replace in circular arc between wider and narrower form more specifically, often organize the contact pin 116,118 and 126 of 112,114 and 122.

According to aspects more of the present utility model, also allow for one or more and/or with contact pin or wall segment and contact pin the combinations with the barrier wall extended continuously or partial barrier wall (that is, contact pin and the combination of bigger section) are replaced in contact pin and replace barrier wall.

In a preferred embodiment, end cap 78 is fixed against rotating against therebetween relative to iron core 48.In any case this fixing can be known in the art, include but not limited to following in one or more: Overmolded；The spline engaged each other；Hot riveting；Bonding agent；Securing member, such as screw, spiral shell peg or a pin；Friction；Or the integrative-structure feature retraining this movement is set.End cap 78 preferred fixed form relative to stator core 48 is described in more detail below.

End cap 78 is preferably made up of synthetic resin material, although one or more different types of materials of the most substantially electric insulation can be used without deviating from spirit of the present utility model.

In a preferred embodiment, end cap 78 also includes multiple tooth covering part of the part of a corresponding tooth 62 of equal covering stator core 48, a part for a corresponding tooth 62 of each tooth covering part covering stator iron core 48.More specifically, each tooth covering part 144 preferably includes upper and lower tooth yoke portion 146 and 148, upper and lower arm 150 and 152, and upper and lower tooth crown 154 and 156.Upper and lower tooth yoke portion 146 and 148 covers corresponding above and below 70 and 72 and the appropriate section of side 74 of the respective teeth 62 adjacent with tooth yoke 64.Upper and lower arm 150 and 152 covers corresponding above and below 70 and 72 and the appropriate section of side 74 of the respective teeth 62 adjacent with arm 66.Upper and lower tooth crown 154 and 156 covers corresponding above and below 70 and 72 and the appropriate section of side 74 of the respective teeth 62 adjacent with crown 68.

It should be particularly noted that in a preferred embodiment, upper and lower tooth yoke portion 146 and 148 fits in limit upper and lower auxiliary connection path 128 and 130 with upper and lower first and second contact pin group and barrier 112,114,120,122.

Preferably, the outermost side face 60 of stator core 48 keeps at least substantially exposing (i.e., at least substantially there is not the covering part relevant to end cap 78 and/or other structure).

In a preferred embodiment, as it has been described above, end cap 78 includes upper and lower section 78a and 78b.Upper end cover section 78a preferably includes: groove 84；First, second, and third contact pin 112,114 and 134 on top respectively；And go up tooth yoke portion, arm and tooth crown 146,150 and 154 respectively.Bottom end cover section 78b preferably includes: first, second, and third barrier of bottom and contact pin group 120,122 and 136 respectively；And lower tooth yoke portion, arm and tooth crown 148,152 and 156 respectively.But, according to aspects more of the present utility model, it is allowed to end cap includes more or less of section.Such as, end cap alternatively includes cover cap and body overall, that form.

As it has been described above, end cap 78 preferably includes fits in the cover cap 102 at least substantially crossing wiring path 86 with wire structures 82.More specifically, cover cap 102 be generally shaped like annular and include the top section 158 substantially radially extended, the bonding part 160 that substantially axially extends and the generally ramped part 162 extending between top section 158 and bonding part 160 and they being interconnected.Top section 158, bonding part 160 and sloping portion 162 extend the most continuously.

As best shown in Fig. 6 a, bonding part 160 preferably limits the first composition surface 164 that top 94 phase of the medial surface 88 with groove 84 is abutted against.Comparatively speaking, top section 158 and sloping portion 162 preferably respectively top 94 and 98 with inside and outside side 88 and 90 is axially spaced.

Preferably, cover cap 102 includes the holding wall 166 substantially axially extended from top section 158.Holding wall 166 preferably surrounds and engages the contact pin 116 of the first contact pin group 112 on top so that cover cap 102 relative to wire structures 82 and is at least substantially prevented from relative to the radial displacement of the remainder of end cap 78 then.

As it has been described above, motor 10 preferably includes stator base 80.Stator base 80 is preferably operable to beneficially be arranged on machine (not shown) by stator.

In a broad sense, in preferably stator base 80 is radially positioned wiring path 86.More specifically, in a preferred embodiment, as it can be seen, stator base 80 preferably includes multiple spaced apart in the circular arc protuberance 188 extended internally diametrically but be radially spaced apart with the medial surface 88 of groove 84 relative to the lateral surface 90 of groove 84.Therefore, medial surface 88 and each protuberance 88 of groove 84 limits radial clearance 170 betwixt.

The setting of radial clearance 170 makes wiring path 86 can extend the most continuously, as mentioned above.Moreover, it is noted that stator base 80 makes it possible to than wherein stator mounting structure relative to the more effective space utilization of the space utilization that the design that the medial surface of groove extends internally diametrically is provided in being positioned to be radially positioned wiring path 86.

Preferably, protuberance 168 includes the mounting protrusion 172 formed by stator core 48 and the installation excrescence 174 formed by end cap 78.More specifically, respectively install excrescence 174 preferably cover at least some of of corresponding mounting protrusion 172.As Fig. 6,7 and other figure shown in, such as, in a preferred embodiment, each installation excrescence 174 includes the electrically insulating material thin layer forming end cap 78, and mounting protrusion 172 includes the chunk of iron core 48.Preferably, mounting protrusion 172 extends to axial edge, bottom 56 from the upper axial edge 54 of iron core 48.

In a preferred embodiment, each protuberance 168 partly limits the fastener receptacle opening 176 passed through.Fastener receptacle opening 176 is configured to receive securing member (not shown；Such as, screw, spiral shell peg or a pin) so that stator 14 is fixed on machine, electrical equipment etc. (the most not shown).Preferably, each fastener receptacle opening 176 extends through cover cap 102, end cap 78 and iron core 48.More specifically, each fastener receptacle opening 176 includes: the outburst area 176a limited by the corresponding mounting protrusion 172 of iron core 48；Corresponding by end cap 78 installs the outburst area 176b that excrescence 174 limits；With cover region 176c limited by cover cap 102.Thus, the supporting of stator 14 is realized collaboratively by securing member (not shown), end cap 78 (including cover cap 102) and iron core 48.

As it has been described above, cover cap 102 includes the multiple fastener receptacle holes 106 in the fastener receptacle aperture 108 that securing member 104 extends through in the remainder of end cap 78.Fastener receptacle aperture 108 in end cap 78 is preferably by installing excrescence 174 and more specifically being limited by the socket 174a (being best shown in fig .9) axially extended.Additionally, respective fastener receives aperture 178 to be preferably formed in the mounting protrusion 172 of iron core 48, although them can be allowed to be formed in the replacement area of iron core.Socket 174a extends preferably in respective apertures 178.Therefore, during cover cap 102 is fixed on both the remainder of end cap 78 and iron core 48.

Protuberance 168 is preferably evenly spaced apart in circular arc, although uneven spacing can be arranged.Additionally, although preferably be provided with three (3) individual protuberances 168, but more or less of protuberance can be there is without deviating from scope of the present utility model.Also allow for protuberance mutually different, although the protuberance 168 constituted the most equally.

Preferably, stator base 80 is received between the upper and lower edge 54 and 56 of iron core 48 the most in the axial direction.Such as, in the illustrated embodiment, the fraction of the electrically insulating material thin layer and perhaps securing member (not shown) that only form each installation excrescence 174 extends past upper axial edge 54, and each securing member the most only one end is (not shown；That is, stator base self is without any part) may extend past axial edge, bottom 56.

Above-mentioned preferred form of the present utility model is only applied and is explained and should not be used in limiting sense to explain scope of the present utility model.Those skilled in the art can easily make the obvious amendment to exemplary embodiment as described above, without departing from spirit of the present utility model.

Inventor thus states that it is intended to, and i.e. depends on doctrine of equivalents and determines and reach the scope that this utility model is rationally fair, and it is attached to any equipment, and departs from the of the present utility model literal scope that appended claims is illustrated indistinctively.

Claims (25)

1., for the external rotor electric machine used in the machine, described motor includes:

The rotor that can rotate about the axis；

The spaced apart stator at least partially radially in the inside of described rotor,

Described stator includes the general toroidal iron core with the iron core edge being axially spaced,

Described stator also includes the wiring being wound on around described iron core；And

End cap, described end cap includes the wire structures of the laying of beneficially wiring,

Described wire structures includes that wiring groove, described wiring groove limit the wiring path laying described wiring through described wiring groove,

Described wiring groove is at least partially positioned at the radially inner side of described iron core,

Described wiring groove includes the bottom between described iron core edge,

Described wiring groove includes the first side, and described first side is spaced apart with described iron core at radially inner side and the most axially highlights relative to described bottom.

2. motor as claimed in claim 1,

Substantially feel relieved between described iron core edge in described bottom.

3. motor as claimed in claim 1,

Described wiring groove generally circumferentially extends.

4. motor as claimed in claim 3,

Described wiring groove is continuous print in the circumferential.

5. motor as claimed in claim 3,

Described iron core has the iron core face of the circumference of radially inner most,

Described wiring groove is included in the second side that radial outside is spaced apart with described first side,

Second side of described wiring groove is abutted against mutually with described iron core face.

6. motor as claimed in claim 1,

Described groove is included in the second side that radial outside is spaced apart with described first side,

Described first side and the second side are respectively provided with upper limb and lower edge,

Described bottom extends between lower edge and is interconnected by lower edge.

7. motor as claimed in claim 1,

Described groove is included in the second side that radial outside is spaced apart with described first side,

Described first side is the most parallel with the second side.

8. motor as claimed in claim 1,

Described end cap is fixed on described iron core to prevent rotating against between described end cap and described iron core.

9. motor as claimed in claim 1,

Described end cap comprises electrically insulating material.

10. motor as claimed in claim 1,

Described end cap also includes that two grades of wire structures, described two grades of wire structures include first group of contact pin spaced apart in circular arc, that axially extend.

11. motors as claimed in claim 10,

Described two grades of wire structures also include second group of contact pin spaced apart in circular arc, that axially extend,

Described first group of, contact pin of axially extending spaced apart in circular arc and second group of contact pin spaced apart in circular arc, that axially extend are radially spaced apart from one another to limit auxiliary connection path betwixt.

12. motors as claimed in claim 1,

Described end cap also includes that cover cap, described cover cap and described wire structures fit in and at least substantially surround described wiring path.

13. motors as claimed in claim 12,

Described wiring groove is included in the second side that radial outside is spaced apart with described first side,

First side and the second side are respectively provided with edge,

Described edge is axially spaced,

Described cover cap includes the part substantially radially extended, sloping portion and the part substantially axially extended,

Described axially extend partially defined go out the first composition surface of being abutted against mutually with first in described edge,

Described part radially and described sloping portion are opened with described marginating compartment.

14. motors as claimed in claim 13,

Described cover cap also includes the holding wall substantially axially extended from described part radially,

Described wire structures includes at least one contact pin axially extended,

Described holding wall is bonded into so that described cover cap is at least substantially prevented from relative to the radial displacement of described wire structures with at least one contact pin described.

15. motors as claimed in claim 1, also include:

Stator base, described stator base is operable to beneficially be arranged on described machine by described stator,

Described stator base is radially positioned in described wiring path.

16. motors as claimed in claim 15,

Described stator base includes multiple protuberance spaced apart in circular arc, and each protuberance limits the fastener receptacle opening through described protuberance,

First side of described protuberance and described wiring groove is radially spaced apart to limit radial clearance between described protuberance and the first side of described wiring groove.

17. 1 kinds are used for the external rotor electric machine used in the machine, and described motor includes:

The rotor that can rotate about the axis；

The spaced apart stator at least partially radially in the inside of described rotor,

Described stator includes wiring；

It is at least partially positioned at the end cap of the radially inner side of described stator,

Described end cap includes the wire structures of the laying of the most described wiring,

Described wire structures includes that wiring groove, described wiring groove limit the wiring path laying described wiring through described wiring groove；With

Stator base, described stator base is operable to beneficially be arranged on described machine by described stator,

Described stator base is radially positioned in described wiring path.

18. motors as claimed in claim 17,

Described stator base includes multiple protuberance spaced apart in circular arc, and each protuberance limits the fastener receptacle opening through described protuberance.

19. motors as claimed in claim 18,

Described end cap includes multiple installation excrescence,

Each described protuberance includes in described installation excrescence.

20. motors as claimed in claim 18,

Described stator includes iron core,

Described iron core includes multiple mounting protrusion,

Each described protuberance includes corresponding one in described mounting protrusion.

21. motors as claimed in claim 20,

Described end cap includes multiple installation excrescence,

Each described protuberance also includes in described installation excrescence.

22. motors as claimed in claim 21,

Each described installation excrescence covers at least some of of corresponding in described mounting protrusion.

23. motors as claimed in claim 17,

Described stator includes the general toroidal iron core with the iron core edge being axially spaced,

Described wiring groove includes the bottom between described iron core edge,

Described wiring groove includes the first side, and described first side is spaced apart with described iron core at radially inner side and the most axially highlights relative to described bottom,

Described stator base and described first side are radially spaced apart to limit radial clearance between described stator base and described first side.

24. motors as claimed in claim 23,

Described wiring groove is included in the second side that radial outside is spaced apart with described first side,

Mounting structure extends from described second side and is radially spaced apart with described first side.

25. motors as claimed in claim 17,

Described stator includes the general toroidal iron core with the iron core edge being axially spaced,

Described stator base is at least substantially axially contained between described iron core edge.