CN207082916U

CN207082916U - A kind of motor stator

Info

Publication number: CN207082916U
Application number: CN201721083310.XU
Authority: CN
Inventors: 吕凌
Original assignee: Jiangsu Mobile New Energy Co Ltd
Current assignee: Xue Caihong
Priority date: 2017-08-28
Filing date: 2017-08-28
Publication date: 2018-03-09
Anticipated expiration: 2027-08-28

Abstract

The utility model discloses a kind of motor stator, and it includes stator core, several first winding elements and several second winding elements.The stator core has centre bore and is centrally located multiple teeth of bore edges, and adjacent between cog forms the trapezoid-shaped openings groove that notch is narrow, bottom land is wide；First winding element includes the first bobbin and the first coil being wound on the first bobbin, and, the cross section of the first coil is square along stator radially；Second winding element includes the second bobbin and the second coil for being wound on the second bobbin, and, the cross section of second coil is in wide trapezoidal in inboard narrow, outside along stator radially；First winding element and the second winding element are circumferentially alternately mounted on the tooth by the endoporus of its bobbin along stator core.Meanwhile first bobbin and the second bobbin be equipped with line outlet groove so that the outlet position of first coil and the second coil is unified.

Description

A kind of motor stator

Technical field

It the utility model is related to motor part field, and in particular to a kind of motor stator.

Background technology

Motor stator is common executive component, is widely used in all kinds of plant equipment.Motor stator is as motor In strength member, directly affect the performance of motor.The stator of conventional motors is designed using round bottomed vessel and flat-bottom slot mostly at present, Its drawback essentially consists in：

1st, the white space of sector is presented between traditional round bottom groove profile and flat-bottom slot groove, causes copper factor relatively low, winding electricity Flow larger, heating is big, and staring torque is small, and power output is small, and electric efficiency is low；

2nd, it is to make up the defects of electric efficiency is low to a certain extent, magnetic slot-seal need to be assembled on stator, but due to magnetic conductance The increase of rate, the electromagnetic force suffered by magnetic slot-seal also increase, and magnetic slot-seal loosens and come off and frequent produced problem, influences The reliability of motor.

In addition, existing stator winding is in the coiling of each winding element, if finally needing to collect connects into main line, due to each The outlet position disunity of winding, is impacted, and cause the waste of copper cash to joint efficiency, homogeneity of product.

Utility model content

The purpose of this utility model is to provide a kind of copper factor height, unifies outlet without magnetic slot-seal and each winding Motor stator.

To achieve the above object, the utility model uses following technical scheme：

A kind of motor stator, including:

Stator core, the stator core have centre bore and are centrally located multiple teeth of bore edges, adjacent between cog Form the trapezoid-shaped openings groove that notch is narrow, bottom land is wide；

Several first winding elements, first winding element include the first bobbin and are wound on the first coiling bone First coil on frame, the cross section of the first coil is square along stator radially；

Several second winding elements, second winding element include the second bobbin and are wound on the second coiling bone The second coil on frame, the cross section of second coil is in wide trapezoidal in inboard narrow, outside along stator radially；

First bobbin and the second bobbin are respectively provided with the endoporus for being socketed on the tooth, and described first Winding element and the second winding element are circumferentially alternately mounted on the tooth by its bobbin endoporus along stator core.

Further, the tooth top both sides of the tooth are respectively machined with a locking breach, first bobbin and second around The spacing preiection corresponding to the locking breach is extended with the inner hole wall of line skeleton.

Further, the width of the locking breach is 1-3mm.

Further, first bobbin supplies First Line close to that side upper end of trapezoid-shaped openings groove bottom land provided with two Iris out the line outlet groove of line；Second bobbin is provided with two coils of confession second close to that side upper end of trapezoid-shaped openings groove bottom land The line outlet groove of outlet.

Further, the stator core is overrided to form by multi-disc stator punching, the outward flange processing of the stator punching There are several welding grooves for circumferentially waiting subarray.

Further, the stator core is overrided to form by 4 stator punchings, the outward flange processing of the stator punching There is a detent, along the circumferential direction, the detent on each stator punching staggers 90 ° successively.

Further, the waist of the trapezoid-shaped openings groove and the angle on base are 60 ° -110 °.

Further, the external diameter of the stator core is 300-480mm, a diameter of 120- of the stator core centre bore 400mm, the tooth root width of the tooth is 16-25mm, addendum width 14-25mm, a height of 25-65mm of tooth.

Further, the slot number of stator core is 24.

After adopting the above technical scheme, the utility model compared with background technology, has the following advantages that：

The first coil that the utility model is square is alternately arranged with the second trapezoidal winding element, so that adjacent lines Fan-shaped white space between circle reduces, and improves copper factor, so that electric current diminishes, caloric value is reduced, and staring torque becomes big, defeated Go out power and become big, efficiency improves, without regard to increase coiling difficulty；

The utility model is because the raising of efficiency, without assembling magnetic wedge groove on stator, you can meets performance requirement, saves About cost of parts and assembly cost；

Bobbin of the present utility model is provided with line outlet groove, and the outlet position of each coil is unified to be set, and uses connecting ring It can unify to carry out wiring, both save copper cash, improved joint efficiency, homogeneity of product, while finished product simple and beautiful again.

Brief description of the drawings

Fig. 1 is the utility model assembly figure；

Fig. 2 is the utility model stator core schematic diagram；

Fig. 3 is the utility model stator core front view；

Fig. 4 is the partial enlarged drawing shown in Fig. 3 at A；

Fig. 5 is the partial enlarged drawing shown in Fig. 4 at B；

Fig. 6 is the first winding element schematic diagram；

Fig. 7 is the enlarged drawing of " C-C " place sectional view in Fig. 6；

Fig. 8 is the second winding element schematic diagram；

Fig. 9 is the enlarged drawing of " D-D " place sectional view in Fig. 8.

Description of reference numerals：

Stator core 1, stator punching 11, detent 111, welding groove 112, centre bore 12, tooth 13, locking breach 131；

First winding element 2, the first bobbin 21, first coil 22, insulating paper 23, endoporus 211, spacing preiection 212, Line outlet groove 213；

Second winding element 3, the second bobbin 31, the second coil 32, endoporus 311, spacing preiection 312, inboard baffle plate 313rd, outer side shield 314, line outlet groove 315.

Embodiment

In order that the purpose of this utility model, technical scheme and advantage are more clearly understood, below in conjunction with accompanying drawing and implementation Example, the utility model is further elaborated.It should be appreciated that specific embodiment described herein is only explaining The utility model, it is not used to limit the utility model.

It should be noted that term " on " " under " " left side " " right side " " vertical " " level " " interior " " outer " etc. in the utility model It is to be based on orientation shown in the drawings or position relationship, it is only for it is easy to describe the utility model and simplify to describe, without It is instruction or implies that device or element of the present utility model there must be specific orientation, thus it is it is not intended that new to this practicality The limitation of type.

Embodiment

With reference to shown in figure 1 and Fig. 2, the utility model discloses a kind of motor stator, including stator core 1, several One winding element 2 and several second winding elements 3.Stator core 1 is overrided to form by multi-disc stator punching 11, each stator punching The outward flange of piece 11 is machined with a detent 111 and 12 welding grooves 112 of subarray such as circumferentially.It is fixed in the present embodiment The quantity of sub- punching 11 is 4, and when each stator punching 11 laminates, each layer is relative to its last layer along same circumferencial direction (detent 111 on i.e. each stator punching circumferentially staggers 90 ° successively) is rotated by 90 °, finally by welding groove 112 with general Multi-disc stator core 11 is welded as a whole.Stator core 1 has centre bore 12 and is centrally located multiple teeth 13 at the edge of hole 12, The trapezoid-shaped openings groove that notch is narrow, bottom land is wide, the first winding element 2 and the second winding element 3 are formed between adjacent tooth 13 along stator Iron core is circumferentially alternately mounted on tooth 13.

As shown in Figure 3, Figure 4, the outer diameter D 1 of stator core 1 is 300-480mm, and the diameter D2 of stator core centre bore is 120-400mm, the tooth root width L1 of tooth 13 is 16-25mm, and addendum width L2 is 14-25mm, and the high H1 of tooth is 25-65mm.It is described The slot number of trapezoid-shaped openings groove is 24, and the waist of the trapezoid-shaped openings groove and the angle theta on base are 60 ° -110 °.As shown in figure 5, tooth Tooth top both sides both sides are respectively machined with a locking breach 131, and the width of locking breach 131 is 1-3mm.

As shown in FIG. 6 and 7, the first winding element 2 includes the first bobbin 21, first coil 22 and insulating paper 23. First bobbin 21 has the endoporus 211 for being used for being socketed on tooth 13；It is extended with the inner hole wall of endoporus 211 corresponding to card The only spacing preiection 212 of breach 131, to limit position of first winding element 2 on tooth 13.First coil 22 is wrapped in On one bobbin 21, the cross section of first coil 22 is square along stator radially.Insulating paper 23 wraps to first coil 22 Cover.

Meanwhile first bobbin 21 close to that side upper end of the trapezoid-shaped openings groove bottom land supply first coil provided with two The line outlet groove 213 of 22 outlets (i.e. the both ends of the insulated conductor of coiling first coil 22).

As can be seen from figures 8 and 9, the second winding element 3 includes the second bobbin 31 and the second coil 32.Second coiling bone Frame 31 has the endoporus 311 for being used for being socketed on tooth 13；It is extended with the inner hole wall of endoporus 311 corresponding to locking breach 131 Spacing preiection 312, to limit position of second winding element 3 on tooth 13.Second coil 32 is wound on the second bobbin 31 On, the cross section of the second coil 32 is in wide trapezoidal in inboard narrow, outside along stator radially.Accordingly, the first bobbin 31 Inboard baffle plate 313 be shorter in length than the length of its outer side shield 314, to prevent the second bobbin 31 from circumferentially pacifying along stator Interfered during dress.

Meanwhile second bobbin 31 go out close to that side upper end of trapezoid-shaped openings groove bottom land provided with two the second coils of confession 32 The line outlet groove 315 of line (i.e. the both ends of the insulated conductor of the second coil of coiling 32).

It is described above, the only preferable embodiment of the utility model, but the scope of protection of the utility model is not This is confined to, any one skilled in the art can readily occur in the technical scope that the utility model discloses Change or replacement, should all cover within the scope of protection of the utility model.Therefore, the scope of protection of the utility model should It is defined by scope of the claims.

Claims

A kind of 1. motor stator, it is characterised in that including:

Stator core, the stator core have centre bore and are centrally located multiple teeth of bore edges, and adjacent between cog is formed The trapezoid-shaped openings groove that notch is narrow, bottom land is wide；

Several first winding elements, first winding element include the first bobbin and are wound on the first bobbin First coil, along stator radially, the cross section of the first coil is square；

Several second winding elements, second winding element include the second bobbin and are wound on the second bobbin The second coil, the cross section of second coil is in wide trapezoidal in inboard narrow, outside along stator radially；

First bobbin and the second bobbin are respectively provided with the endoporus for being socketed on the tooth, first winding Unit and the second winding element are circumferentially alternately mounted on the tooth by the endoporus of its bobbin along stator core.
A kind of 2. motor stator as claimed in claim 1, it is characterised in that：The tooth top both sides of the tooth are respectively machined with a locking Breach, the limit convex corresponding to the locking breach is extended with the inner hole wall of first bobbin and the second bobbin Rise.
A kind of 3. motor stator as claimed in claim 2, it is characterised in that：The width of the locking breach is 1-3mm.
A kind of 4. motor stator as claimed in claim 1, it is characterised in that：First bobbin is close to trapezoid-shaped openings groove That side upper end of bottom land is provided with two line outlet grooves for first coil outlet；Second bobbin is close to trapezoid-shaped openings groove groove That side upper end at bottom is provided with the line outlet groove of two confession the second coil outlets.
A kind of 5. motor stator as claimed in claim 1, it is characterised in that：The stator core is determined by multi-disc same size Sub- punching is overrided to form, and the outward flange of the stator punching is machined with several welding grooves for circumferentially waiting subarray.
A kind of 6. motor stator as claimed in claim 5, it is characterised in that：The stator core is laminated by 4 stator punchings Form, the outward flange of the stator punching is machined with a detent, along the circumferential direction, detent on each stator punching according to It is secondary to stagger 90 °.
A kind of 7. motor stator as claimed in claim 5, it is characterised in that：The waist of the trapezoid-shaped openings groove and the angle on base For 60 ° -110 °.
A kind of 8. motor stator as claimed in claim 5, it is characterised in that：The external diameter of the stator core is 300-480mm, A diameter of 120-400mm of the stator core centre bore, the tooth root width of the tooth is 16-25mm, addendum width 14- 25mm, a height of 25-65mm of tooth.
A kind of 9. motor stator as claimed in claim 8, it is characterised in that：The slot number of stator core is 24.