CN202696323U

CN202696323U - Outer-rotor type motor

Info

Publication number: CN202696323U
Application number: CN 201220032667
Authority: CN
Inventors: 山崎克之; 山崎政英
Original assignee: Hitachi Industrial Equipment Systems Co Ltd
Current assignee: Hitachi Industrial Equipment Systems Co Ltd
Priority date: 2011-06-20
Filing date: 2012-02-02
Publication date: 2013-01-23
Anticipated expiration: 2022-02-02
Also published as: JP5873262B2; JP2013005634A

Abstract

The utility model provides an outer-rotor type motor, which makes stable the position of an end of a coil which is already wound and improves the assembling operationality. The outer-rotor type motor has a rotor (5) at the outer side of a stator iron core (2) and a resin component (1) for insulating the stator iron core (2) and an electric wire. The resin component (1) with the electric wire wound thereon is maintained on the stator iron core (2). A fixing part (7) is arranged at the outer side of the resin component (1) at the outer diameter side of the stator iron core (2), so that an end (3b) of a coil which is formed by winding the electric wire is fixed along two side surfaces (7a, 7b) of the fixing part (7). In this way, the end (3b) of the coil which is already wound can be positioned. During the operation of assembling the outer-rotor type motor, the end (3b) of the coil is easily guided to the inner diameter side of the stator iron core (2).

Description

The outer-rotor type motor

Technical field

The utility model relates to by insulant the concentrated outer-rotor type motor that forms coil on the stator core that is wound on of electric wire.

Background technology

As motor or generator and the motor that uses have: possess the stator core that toothed region that coil is installed and stacked electromagnetic steel plate form; And rotation is installed in the rotor on the stator casing that stator core is installed freely.Motor has inner-rotor type motor and outer-rotor type motor, wherein, inner-rotor type motor configures rotor in the space of the drum of the inside that is formed at stator core, the outer-rotor type motor is in the cylindrical portion of the outside of stator core configuration rotor, in order to form rotating magnetic field, the end of the coil that winding cables need to be formed connects.As the device that is associated with this technology, at patent documentation 1(TOHKEMY 2000-78789 communique) in record and use the coil end splice terminal and the motor of the end of connecting coil.In addition, because the width of the toothed region of stator core is the width of regulation, the shape that therefore will dispose the slot of coil is made more and has been become known technology near the wider technology of outside diameter width, at patent documentation 2(Japanese kokai publication hei 10-290545 communique) in record technology according to the shape coiling coil of slot.

In addition, as the structure that is used for stator core and coil are insulated, although in patent documentation 1, patent documentation 2, only consisted of by reel, at patent documentation 3(TOHKEMY 2006-180674 communique) in record the motor that utilizes insulating end plate and insulating sealer to consist of.

In the outer-rotor type motor, because the outside diameter at stator core disposes rotor, therefore the connection of carrying out coil end at the outside diameter of stator core is difficulty relatively, but from the slot shape of stator core as can be known, the coil end that finishes of reeling be configured in outside diameter in the slot near.Make the size decreases of the stacked direction of stator core, and in order to make the motor miniaturization, the internal side diameter that coil end need to be caused stator core connects, in the prior art, connect operation by the internal side diameter that by hand coil end is caused stator core.In addition, realize miniaturization for the state with the characteristic of keeping motor, need the more electric wire of reeling, need to make the gap of adjacent coil as much as possible little.

Form after the coil electric wire being wound on the reel, above-mentioned reel is assembled in the situation on the stator core, the electric wire that the coil end of coiling beginning is reeled is afterwards fixed, but the end of the coil of the end of reeling can not be fixed, if be unsure state always, then there are significantly impaired actual conditions of assembling operation, in addition, in the situation that be disposed at insulant on the stator core and the direct winfing electric wire, the coil end that finishes if reel can not be fixed and the position disperses, and becomes the problem of obstacle when then having the coil of reeling adjacent.

The utility model content

The purpose of this utility model improves the workability that stator is made when being to realize the miniaturization of motor, the position stability of the coil end that the coiling that makes coil finishes is provided in addition and improves the outer-rotor type motor of assembling operation.

In the utility model, in the two sides as the arranged outside fixed part of the reel of resin component, and make the coil end that reel to finish along these two sides, and can position the coil terminal that finishes of reeling thus, can easily coil end be caused the internal side diameter of stator core.

Namely, according to outer-rotor type motor of the present utility model, it is the outer-rotor type motor at the arranged outside rotor of stator core, it is characterized in that, has the resin component that said stator iron core and electric wire are insulated, the above-mentioned resin component that is wound with said wires is remained on the said stator iron core, and at the arranged outside fixed part of the above-mentioned resin component of the outside diameter that is positioned at this stator core, the coil end that makes the coil that the coiling said wires forms positions along the two sides of above-mentioned fixed part.

In addition, at least one in the two sides of above-mentioned fixed part forms laterally inclinedly.

In addition, above-mentioned fixed part is formed by two grooves.

In addition, above-mentioned fixed part is projection.

According to the utility model, can access following effect: when realizing the miniaturization of motor, improve the coil occupation rate in the slot, the position stability of the end that the coiling of coil finishes improves assembling operation.

Description of drawings

Fig. 1 is the stereogram that expression is formed in the reel on the motor of the present utility model.

Fig. 2 is the cutaway view of expression motor of the present utility model.

Fig. 3 (a) is the outside drawing of expression stator core, and Fig. 3 (b) is that expression will be at the reeled outside drawing of the state of assembling parts on stator core of coil of reel.

Fig. 4 is the outside drawing of expression major part of the present utility model, the parts that Fig. 4 (a) expression is formed obliquely the opposing party's groove with respect to a side groove, the variation that Fig. 4 (b) expression widely forms the Width electric wire raw material diameter of a side groove 1a.

Fig. 5 is the stereogram of the reel of expression other execution modes of the present utility model.

Fig. 6 is the outside drawing of the major part of expression other execution modes of the present utility model.

Among the figure:

1-reel (resin component), 1a-groove, 1b-groove, 1c-groove, 2-stator core, 3-coil, the coil end that 3a-reels and begins, the coil end that 3b-reels and finishes, 4-shell, 5-rotor, 6-slot, the 7-fixed part, 7a-wall, 7b-wall, the edge in the 8-outside, the edge of 9-inboard.

Embodiment

Below, with reference to accompanying drawing on one side of the present utility model embodiment described on one side.

Fig. 2 is the cutaway view of expression motor of the present utility model.This motor is for turning shape motor (outer-rotor type motor) outward, and is that stator core 2 is assembled on the shell 4, and the neck side disposes the structure of rotor 5 outside.

The outside drawing of Fig. 3 (a) expression stator core 2, Fig. 3 (b) is that expression will be assembled in outside drawing on the stator core 2 at reeled coil 3 that electric wire forms of reel 1, shown in Fig. 3 (b), have the coil end 3a of the beginning of reeling and the coil end 3b of the end of reeling at the coil 3 that is wound on the reel 1.

The shape of slot 6 of stator core 2 that disposes coil 3 is wider the closer to its width of external diameter direction (top of Fig. 3 (a)) of stator core 2.Therefore, if the winding number of electric wire is more, then coil end 3 sides of the coiling of coil 3 end configure to the nearer position of the outside diameter of stator core 2 shown in Fig. 3 (b).

For rotating magnetic field is occurred on the stator core 2, need to connect reel the coil end 3a of beginning and the coil end 3b that reels and finish, contact in order to prevent that these from producing with the rotor 5 of the outside diameter that is configured in stator core 2, coil end 3a is connected at the internal side diameter of stator core 2 with coil end 3b.

When electric wire being wound in coil 3 that reel 1 forms and being assembled on the stator core 2, groove 1c although reel on the edge 9 of the inboard of the reel 1 of the coil end 3a of beginning by being arranged on the internal side diameter that is positioned at stator core 2, the electric wire of being reeled is afterwards fixed, but the coil that the coil end 3b of the end of reeling can not be wound is fixed.

As shown in Figure 1, inboard and the outside at reel 1 of the present utility model have

edge

8,9, edge 8 in the outside of the reel 1 of the outside diameter that is positioned at stator core 2 is formed with the fixed part 7 that is formed by two groove 1a, 1b, has

wall

7a, 7b about fixed part 7.And, shown in Fig. 3 (b), make coil end 3b that the coiling of coil 3 finishes side by groove 1a and groove 1b and its

wall

7a, 7b along about the fixed part 7 is fixed, make thus coil 3 mutually adjacent with coil end 3b, but coil end 3b does not disturb slot 6 interior coil 3 is produced, and can carry out the assembling operation of motor.

In addition, as shown in Figure 4, two groove 1a and groove 1b be configured in understand on the position consistent with the jut center of stator core 2, summit that coil end 3b that the coiling by groove finishes is bent satisfactory.Have, because minimum bending radius determines by the raw material diameter of employed electric wire, therefore two groove 1a are satisfactory with the interval meeting that being spaced apart of groove 1b is fit to minimum bending radius again.

In addition, although groove 1a and wall 7a shown in Fig. 4 (a) with the coil end 3b that reel to finish towards from slot 6 out the direction mode and its correspondingly be formed obliquely, the coil end 3b that making reels finishes is easily by groove 1a, but also can be shown in Fig. 4 (b) the wider width of groove 1a by making a side in the raw material diameter of electric wire, the coil end 3b that making reels finishes is easily by groove 1a.

Secondly, according to Fig. 5 other embodiment are described.Shown in figure, although the reel 1 of Fig. 5 is provided with groove 1a, 1b in the edge 8 in the outside, be provided with about have the fixed part 7 of the overshooting shape of wall 7a, 7b.And, the coil end 3b that making reels finishes is along wall 7a, the 7b of fixed part 7, make this coil end 3b by being located at the groove 1c of inboard edge 9, also because of can as the reel 1 of Fig. 1～illustrated in fig. 4 in the same manner fixed coil end 3b can improve workability.In addition, variation as Fig. 5, although not shown, but making the groove of being located on the inboard edge 9 is two, among these two grooves, the groove that a side groove is passed through as the coil end 3a of the beginning of reeling, the groove that the coil end 3b that the opposing party's groove is finished as reeling passes through, thereby the purposes of having separated inboard groove is got wrong terminal in the time of can preventing from connecting operation thus.This is provided with in the situation of groove 1a, groove 1b also identical in the edge 8 in its outside in reel shown in Figure 11.

Above, although the present embodiment is illustrated, the utility model is not limited to above-described embodiment, can carry out various distortion and implement in the scope of main points of the present utility model.In the ability example, the resin component of the electric wire that the insulation of the coil 3 that forms as stator core 2 and winding cables and keeping is reeled and be useful in the outside and inboardly have an

edge

8,9 and integrally formed these reel 1, but replace, also can identical groove (1a, 1b, 1c) is set and the terminal 3b that finishes that reels is fixed by this groove at for example insulating end plate.In addition, for the material of reel 1, as long as have insulation function, also can be the material beyond the resin.

In addition, in the present embodiment, although making the groove in the coil end 3b that reel the to finish outside by being located at reel 1, but the wider width by making groove 1 is in the raw material diameter of electric wire, the coil end 3a that can make the beginning of reeling is groove 1a, the 1b in the outside by being located at reel 1 also, and according to the width at the position of the winding cables of reel, the diameter of wire and the winding number of coil, by making electric wire begin to reel from the outside of stator core 2, can improve the combing of the electric wire of coil, the more electric wire of can reeling can make motor realize miniaturization.

Claims

1. outer-rotor type motor, this outer-rotor type motor is characterized in that at the arranged outside rotor of stator core,

Have the resin component that said stator iron core and electric wire are insulated,

The above-mentioned resin component that is wound with said wires is remained on the said stator iron core,

At the arranged outside fixed part of the above-mentioned resin component of the outside diameter that is positioned at this stator core,

The coil end that makes the coil that the coiling said wires forms positions along the two sides of above-mentioned fixed part.

2. outer-rotor type motor according to claim 1 is characterized in that,

In the two sides of above-mentioned fixed part at least one forms laterally inclinedly.

3. outer-rotor type motor according to claim 1 and 2 is characterized in that,

Above-mentioned fixed part is formed by two grooves.

4. outer-rotor type motor according to claim 1 and 2 is characterized in that,

Above-mentioned fixed part is projection.