KR20160116210A

KR20160116210A - Folding type stator core

Info

Publication number: KR20160116210A
Application number: KR1020150043015A
Authority: KR
Inventors: 오홍석; 이영수
Original assignee: 성림첨단산업(주)
Priority date: 2015-03-27
Filing date: 2015-03-27
Publication date: 2016-10-07

Abstract

The present invention relates to a folding type stator core, and to a folding type stator core formed by winding a stripe type core member having a plurality of teeth parts to combine both ends. According to the present invention, the stripe type core member comprises: a plurality of teeth parts; a back yoke part installed in the outside of each teeth part; a coil winding part installed between each teeth part and each back yoke part; a cut part installed between the back yokes; and a connection part installed in an outer end part of each cut part. A plurality of stripe type core members are overlapped in a front/rear direction and both end parts of each core member having a state wound in a circular shape are combined through a combination means. Thus, since coil winding and combination of the core member are facilitated, productivity improvement and cost reduction are promoted.

Description

[0001] FOLDING TYPE STATOR CORE [0002]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a stator core, and more particularly, to a folding type stator core member having a plurality of teeth portions.

Generally, a motor converts electric energy into rotational energy.

The motor includes a stator that forms an electromagnetic force and a rotor that rotates by an electromagnetic force.

The stator of the motor is wound with a coil for generating an electromagnetic force in the stator core.

The present invention relates to the stator core, wherein the stator core has a form in which a coil winding portion is provided between the back yoke portion and the tooth portion.

On the other hand, in many cases, the stator core is manufactured in a split type or a folded type so as to facilitate fabrication and winding of the coil.

The split type is a form in which a plurality of core members each having a back yoke portion, a tooth portion, and a coil winding portion are roundly joined to each other, and the folding type is a mode in which a band-shaped core member having a plurality of lead- .

In the following Patent Documents 1 and 2, a split type stator core is disclosed.

The split type stator core as in Patent Document 1 and Patent Document 2 has an advantage that winding of the coil is very easy, but it is difficult to work to join the plurality of core members in a ring shape.

The following Patent Document 3 discloses a folding stator core.

The folding type stator core as in Patent Document 3 can easily wind the coils to the respective coil winding portions of the band-shaped core member, and the operation of winding the band-shaped core members round the coil after winding the coils to easily join both ends is relatively easy.

Korean Patent Publication No. 10-2008-0089477 (published October 6, 2008) Korean Registered Patent No. 10-1135251 (issued on April 12, 2012) Korean Patent Publication No. 10-2013-0006337 (published Jan. 16, 2013)

However, the folding type stator core according to the related art including Patent Document 3 has a problem that the band-shaped core member is rounded to make it difficult to join the both ends, resulting in a large production cost, and the back yoke portion can not be rounded after assembly There is a problem that it becomes difficult to assemble to the frame.

SUMMARY OF THE INVENTION The present invention has been made in order to solve the problems of the prior art described above, and its object is to provide a belt type core member having a plurality of teeth portions, So that the stator core can be reduced.

Another object of the present invention is to provide a folding type stator which can improve the assembling property with the frame by allowing the back yoke portion to have an accurate circle after joining both end portions of the core member, Core. &Lt; / RTI >

In order to achieve the above object, a folding type stator core according to the present invention is a folding type stator core for rounding a band-shaped core member having a plurality of tooth portions to join both ends, wherein the band- A back yoke portion provided on the outer side of each tooth portion; A coil winding portion provided between each tooth portion and each back yoke portion; A cutout portion provided between each back yoke portion; And a connecting portion provided at an outer end of each of the notches, wherein a plurality of band-shaped core members are overlapped in the front-rear direction, and both ends of each of the core members in a circularly wound state are coupled through coupling means.

The foldable stator core according to the present invention is characterized in that the back yoke portion of each core member is formed in an arcuate shape corresponding to a diameter in a rounded state.

The folding type stator core according to the present invention is characterized in that a plurality of core members superimposed in the front-rear direction are combined through one coupling pin passing through the respective core members in the front-rear direction.

In the folding type stator core according to the present invention, the core members overlapping in the front-rear direction are provided with missing portions in the front side and the rear side in the left side back yoke portion, and extension portions are provided in the right side back yoke portion, A yoke portion is provided at the back yoke portion, an extension portion is provided at the left end yoke portion, a coupling hole is formed in the extension portion of each core member, and the coupling pin is inserted through the coupling hole in the front-rear direction .

The foldable stator core according to the present invention is characterized in that a plurality of core members superimposed in the front-rear direction are coupled through a plurality of engagement pins provided in the center direction of each core member.

In the folding type stator core according to the present invention, the lower yoke portion is provided at the lower end of one end back yoke portion of each core member, the upper yoke portion is provided at the upper end thereof with the upper yoke portion, A plurality of engagement holes are formed in the center direction, and engagement pins are inserted into the engagement holes.

The folding type stator core according to the present invention is characterized in that both end portions of the core members are coupled through elastic coupling protrusions provided respectively at the lower portion of the left end back yoke portion and the upper end portion of the right end back yoke portion of each core member.

According to the folding type stator core according to the present invention, the coils can be easily wound in a state in which the respective core members are spread, and the both ends of the core members can be easily rolled after winding the coils, Cost savings can be achieved.

Further, according to the folding type stator core according to the present invention, it is possible to facilitate the outer diameter dimension and the end circle management, so that the assembling property with other parts such as the frame can be improved, and the quality of the motor can be improved.

BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a front view of a recessed portion of a core member of a folding stator core according to the present invention; Fig.
2 is an exploded perspective view of a folding stator core according to a first embodiment of the present invention,
3 is an exploded top view of the folding stator core according to the first embodiment,
Fig. 4 is a front view of the folding stator core according to the first embodiment; Fig.
5 is an exploded perspective view of a folding stator core according to a second embodiment of the present invention,
6 is a plan view of a folding stator core according to the second embodiment,
Fig. 7 is a front view of the folding stator core according to the second embodiment. Fig.
8 is a perspective view of a folding stator core according to a third embodiment of the present invention,
9 is a plan view of a folding stator core according to the third embodiment,
Fig. 10 is a front view of a folding stator core according to the third embodiment; Fig.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A foldable stator core according to the present invention will now be described in detail with reference to the accompanying drawings.

In the following, the terms "upward", "downward", "forward" and "rearward" and other directional terms are defined with reference to the states shown in the drawings.

1 is a front view of a core of a folding stator core according to the present invention.

The foldable stator core 100 according to the present invention is a mode in which both ends of a band-shaped core member 110 having a plurality of tooth portions 111 are rounded and engaged.

The band-shaped core member (110) has a plurality of tooth portions (111); A back yoke portion 113 provided outside each tooth portion 111; And a coil winding portion 112 provided between each tooth portion 111 and each back yoke portion 113.

In addition, the band-shaped core member 110 includes a cut-out portion 114 provided between the back yoke portions 113; And a connection part 115 provided at an outer end of each notch 114.

The folding type stator core 100 according to the present invention is formed such that the plurality of band-shaped core members 110 are overlapped in the front-rear direction and both ends of each of the core members 110 in a circularly wound state are coupled through coupling means .

In the foldable stator core 100 according to the present invention, the back yoke portions 113 are formed in an arc shape corresponding to the diameter of the rounded cores so that when the belt-like core member 110 is rounded, It is possible to achieve the circle.

FIG. 2 is an exploded perspective view of a folding stator core according to a first embodiment of the present invention, FIG. 3 is an exploded plan view of a folding stator core according to the first embodiment, and FIG. Fig. 3 is a front view of a folding stator core. Fig.

The foldable stator core 100 according to the first embodiment of the present invention combines a plurality of core members 110 through one coupling pin 120 passing through the respective core members 110 in the longitudinal direction.

In the folding stator core 100 according to the first embodiment, the front and back side of the core member 110 overlapping in the front-rear direction is provided with a coupling 113a in the left end back yoke 113 At the same time, the right side back yoke 113 is provided with an extended portion 113b. In the center, the right side back yoke 113 is provided with a coupling 113a and an extension 113a is provided at the left side back yoke 113 A portion 113b is provided.

In the folding type stator core 100 according to the first embodiment, the extending portion 113b of each core member 110 is provided with the engaging hole 116, and the engaging pin 120 engages with the engaging hole 116 And is passed through in the front-rear direction.

The foldable stator core 100 according to the first embodiment of the present invention can firmly couple a plurality of core members 110 which are overlapped in the longitudinal direction through one coupling pin 120. [

Fig. 5 is an exploded perspective view of a folding stator core according to a second embodiment of the present invention, Fig. 6 is a plan view of a folding stator core according to the second embodiment, Fig. 7 is a cross- Fig. 3 is a front view of a stator core. Fig.

The foldable stator core 100 according to the second embodiment of the present invention couples a plurality of core members 110 through a plurality of coupling pins 130 installed in the center of the core member 110.

The foldable stator core 100 according to the second embodiment of the present invention is characterized in that the lower coupling 113c is provided at the lower end of one end back yoke 113 of each core member 110, (113d) is provided at the upper end of the upper plate 113. [

In the folding type stator core 100 according to the second embodiment of the present invention, when each belt-shaped core member 110 is formed into a circular shape, the one side back yoke 113 and the other side back yoke 113 (113c) and whether or not the upper bound 113d is filled.

In the folding type stator core 100 according to the second embodiment of the present invention, a plurality of engaging holes 117 are formed at the upper end of one end back yoke 113 in the center direction, A coupling pin 130 is inserted.

Although the foldable stator core 100 according to the second embodiment of the present invention has the plurality of coupling pins 130 coupled to the core member 110, unlike the first embodiment, each of the core members 110 Can be manufactured in the same shape, so that the production of the core member 110 is facilitated.

9 is a plan view of a folding stator core according to a third embodiment of the present invention. FIG. 10 is a perspective view of a folding type stator core according to a third embodiment of the present invention. Fig.

In the folding type stator core 100 according to the third embodiment of the present invention, the lower end of the left end back yoke 113 and the upper end of the right end back yoke 113 of each core member 110 are provided with elastic engagement protrusions (113e) and (113f).

Therefore, unlike the first and second embodiments, the folding type stator core 100 according to the third embodiment of the present invention is capable of engaging both ends of each core member 110 without using separate coupling pins do.

The foldable stator core 100 according to the third embodiment of the present invention can be manufactured in the same manner as each of the core members 110 as in the second embodiment described above, So that it can be facilitated.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments.

Therefore, the embodiments disclosed in the present invention are not intended to limit the scope of the present invention but to limit the scope of the present invention.

The scope of protection of the present invention should be construed according to the following claims, and all technical ideas falling within the scope of the same shall be construed as falling within the scope of the present invention.

100: folding stator core
110: strip-shaped core member
111:
112: coil winding part
113: back yoke part
114:
115: Connection
116, 117: engaging hole
120, 130:

Claims

A folding type stator core for winding both ends of a strip type core member (110) having a plurality of tooth portions (111)
The band-shaped core member (110)
A plurality of tooth portions 111;
A back yoke portion 113 provided outside each tooth portion 111;
A coil winding portion 112 provided between each tooth portion 111 and each back yoke portion 113;
A notch 114 provided between each back yoke 113;
And a connection part 115 provided at an outer end of each cutout part 114,
Wherein a plurality of belt-like core members (110) are overlapped in the front-rear direction, and both end portions of the core members (110) in a circularly wound state are coupled through engagement means.

The method according to claim 1,
Wherein the back yoke (113) of each core member (110) is formed in an arc shape corresponding to a diameter of a rounded state.

The method according to claim 1,
Wherein the plurality of core members (110) are overlapped in a back and forth direction through one coupling pin (120) passing through each of the core members (110) in the forward and backward directions.

The method of claim 3,
In the front and rear portions of the core member 110 which are overlapped in the front-rear direction, the left side back yoke 113 is provided with the coupling 113a and the right side back yoke 113 is provided with the extending portion 113b And a central portion is provided with a coupling 113a on the right side back yoke 113 and an extended portion 113b on the left side back yoke 113,
Wherein an engaging hole (116) is formed in an extension portion (113b) of each core member (110), and a coupling pin (120) is inserted through each engaging hole (116) in the front and rear direction.

The method according to claim 1,
Wherein a plurality of core members (110) which are overlapped in the longitudinal direction are coupled through a plurality of coupling pins (130) installed in the center direction of each core member (110).

6. The method of claim 5,
A bottom coupling 113c is provided at the lower end of one end back yoke 113 of each core member 110 and a top end coupling 113d is provided at the upper end of the other end back yoke 113,
A plurality of engaging holes 117 are formed in the center direction at the upper end of one end back yoke 113 of each core member 110 and the engaging pins 130 are inserted into the engaging holes 117 Of the stator core.

6. The method of claim 5,
The elastic members 113 are formed on the lower end of the left end back yoke 113 of the core member 110 and the upper end of the right end back yoke 113 by elastic coupling projections 113e, To the stator core.