CN201515261U

CN201515261U - Stator iron core

Info

Publication number: CN201515261U
Application number: CN2009201339046U
Authority: CN
Inventors: 王东晖
Original assignee: Dongguan Shinano Motor Co Ltd
Current assignee: Dongguan Shinano Motor Co Ltd
Priority date: 2009-07-13
Filing date: 2009-07-13
Publication date: 2010-06-23
Anticipated expiration: 2019-07-13

Abstract

The utility model relates to a stator iron core, which belongs to an expansion iron core consisting of a plurality of unit iron cores (1) distributed circumferentially to form a ring shape, wherein each unit iron core (1) is provided with a yoke part (11), tooth parts (12) extending radially from the yoke part (11) and tooth end parts (13) positioned at the tops of the tooth parts (12), the tooth end parts (13) of the stator iron core are provided with at least an opening part (14), the opening part (14) is arranged between the adjacent tooth end parts, the yoke part of the stator iron core is provided with at least a pore (15), and the pore (15) of the yoke part is positioned between the adjacent tooth parts (12). Because the stator iron core is provided with at least one opening part and one pore, after the unit iron core wound with a coil is assembled, the stator iron core can be easily inserted into a plastic packaging mould, the stator iron core is tightly combined via pressing a magnetic pin shaft into the pore, and the electromagnetic property at the junction is improved.

Description

Stator core

Technical field

The utility model relates to a kind of stator core.This stator core especially can be used for office equipment (for example machine such as OA, FA).

Background technology

Traditionally, the plastic packaging stator of plastic packaging motor has been rolled up after the coil by the punching press iron core, puts into plastic package die moulded section and forms.For the expansion stator core, its deployable shape that is arranged in a straight line makes that the tooth portion of each unit iron core is what open wide, like this, can easily coil be installed in the tooth portion during rule operation, can enhance productivity.Under the occasion of using expansion iron core stator, the stator core of linearity welds the part of tooth ends or yoke portion through behind the spiral, forming the spiral stator core of annular, and then puts into plastic package die and carries out moulded section.Certainly, also exist and do not weld and directly annular stator core is put into the situation that plastic package die carries out pressing mold, but in this case in a circumferential direction the position be difficult to fix, cause the work manhours of reality too high, can't produce.In addition, in the prior art, have such problem, stator core directly inserts behind the plastic package die mould structure complexity that directly moulded section meeting causes, thereby increases the expense of mould.

The utility model content

The purpose of this utility model is: at above-mentioned defective of the prior art, a kind of stator core is provided, makes and easily stator core is inserted in the plastic package die, and stator core is closely combined, thereby the minimizing cost provides cheap plastic packaging motor stator.

The utility model solves the problems of the technologies described above the technical scheme that is adopted and is: construct a kind of stator core, a plurality of unit iron core group by circumferential distribution is dressed up ring-type, each unit iron core all has yoke portion, from described yoke portion radially the tooth portion of radial extension and the tooth ends that is positioned at described tooth portion top, it is characterized in that, described stator core has at least one peristome, and described peristome is located between the adjacent described tooth ends.

As optimal technical scheme of the present utility model, described stator core also has at least one hole, and described hole is located between the adjacent described yoke portion.

As optimal technical scheme of the present utility model, the embedded magnetic bearing pin that is complementary with described hole that is inserted with of described hole.

As optimal technical scheme of the present utility model, radially the position is corresponding one by one with described hole for described peristome.

As optimal technical scheme of the present utility model, described unit iron core has and is used for the concavo-convex fitting portion that cooperates with the adjacent cells iron core.

As optimal technical scheme of the present utility model, described concavo-convex fitting portion comprises: be located at the first recessed fitting portion and/or the first protruding portion of closing in the described yoke portion.

The utility model also provides a kind of motor with above-mentioned stator core.

Enforcement the utlity model has following beneficial effect: because described stator core has at least one peristome and at least one hole, peristome and hole are located between adjacent tooth ends and the yoke portion corresponding with this tooth ends.So be wound with the unit iron core of coil in assembling after, can easily stator core be inserted plastic package die, and stator core closely be combined, and improve the electromagnetic property of junction by the magnetic bearing pin is pressed into.

Description of drawings

Below in conjunction with the accompanying drawings and the specific embodiments the utility model is described in detail, in the accompanying drawing:

Fig. 1 is the assembly drawing as the stator core of preferred embodiment of the present utility model;

Fig. 2 is the deployed condition as the stator core of preferred embodiment of the present utility model;

Fig. 3 inserts local enlarged diagram behind the plastic package die for stator core.

Embodiment

Below in conjunction with accompanying drawing preferred embodiment of the present utility model is elaborated.With reference to Fig. 1, stator core comprises a plurality of unit iron core 1.Unit iron core 1 is along circumferentially distributing and interconnecting and be assembled into the stator core of circulus.Each unit iron core 1 all has yoke portion 11, tooth portion 12 and tooth ends 13.Tooth portion 12 is from the radially radial extension of yoke portion 11, and it is used for winding around 17, thereby makes stator core have the function of magnetic pole when electric current flows through coil 17.Tooth ends 13 is positioned at tooth portion 12 outer ends.More particularly, in the present embodiment, stator core strikes out as shown in Figure 2 shape by an iron plate integral body, keeps connection status between the tooth ends 13 after the punching press and does not disconnect, and yoke portion 11, tooth portion 12 and tooth ends 13 form as a whole by this way.Therefore, can save the cost of material.

As shown in Figure 1, stator core has peristome 14 in the head and the tail junction.More particularly, between two unit iron cores 1 that head and the tail connect (being the left end among Fig. 2 and the unit iron core at right-hand member place), be formed with peristome 14.In other words, peristome 14 is located between the tooth ends 13 of this unit iron core that connects from beginning to end.Peristome 14 can form as follows: the size of the unit iron core that will connect from beginning to end is provided with lessly relatively, and promptly under deployed condition, the circumferential size of the tooth ends 13 of the unit iron core 1 at place, two ends is arranged to slightly littler than the circumferential size of other tooth ends 13.Certainly, the utility model is not limited thereto, and also can peristome 14 be set other suitable mode between adjacent tooth ends 13.The shape that it is emphasized that peristome 14 is not subjected to concrete restriction, can be arbitrary shape, and the opening of peristome 14 is at interval less than the circumferential distance between the tooth portion 12.Like this, because the girth of stator core is littler than the girth of corresponding plastic package die, can easily the stator core that is wound with coil be put into plastic package die and carry out moulded section.

In addition, stator core also has hole 15.As shown in Figures 1 to 3, this hole 15 is located between the adjacent yoke portion 11.The hole 15 embedded magnetic bearing pins 16 that are complementary with hole 15 that are inserted with.Radially the position is corresponding with hole 15 for peristome 14.In the present embodiment, peristome 14 forms by two unit iron cores that above-mentioned head and the tail are connected with hole 15.Yet the utility model is not limited thereto, and also can form corresponding peristome 14 and the operation of hole 15 with raising processing in addition between two unit iron cores that mediate.Need to prove, the shape of this hole 15 is not subjected to concrete restriction, can be circular port or square opening etc., can certainly form the gap of disconnection as peristome 14, as long as after the stator core that will be wound with coil is put into plastic package die, the bearing pin 16 corresponding with it at these hole 15 place's inserted-shapes gets final product to fill up hole 15 formed gaps.And the opening of hole 15 at interval should be less than the circumferential distance between the tooth portion 12.Like this, can make between the unit iron core 1 more closely to combine, and improve the electromagnetic property of junction.

As illustrated in fig. 1 and 2, unit iron core 1 has and is used for the concavo-convex fitting portion that cooperates with the adjacent cells iron core.Concavo-convex fitting portion is the first protruding fitting portion 111 and the first recessed fitting portion 112 in the yoke portion 11.Because this first protruding fitting portion 111 and the first recessed fitting portion 112, just can accurately locate and assemble each unit iron core.Thereby enhance productivity.

Introduce the step of making this stator core below.Wherein, stator core is assembled into ring-type by a plurality of unit iron core 1 of circumferential distribution, each unit iron core 1 all has yoke portion 11, from yoke portion 11 radially the tooth portion 12 of radial extension and the tooth ends 13 that is positioned at tooth portion 12 tops, stator core has at least one peristome 14 and at least one hole 15, peristome 14 is located between the adjacent tooth ends 13, and hole 15 is located between the adjacent yoke portion 11.The method of this manufacturing stator core may further comprise the steps: at first, under the deployed condition of stator core (as shown in Figure 2), the coil 17 that copper wire is made is installed in the tooth portion 12 of unit iron core 1; Then, the stator core that is assembled into ring-type is inserted in the plastic package die 19; Then, magnetic bearing pin 16 is pressed in the hole 15; At last, in plastic package die, stator core is carried out moulded section, capsulation material 18 is pressed in the stator core.Preferably, radially the position is corresponding with hole 15 for peristome 14.

As mentioned above, the expansion iron core that tooth ends 13 interconnects is in the form of a ring, and there is more than one peristome 14 in tooth ends 13.Equally, the expansion iron core is in the form of a ring, and there is more than one hole 15 in the yoke portion of yoke portion 11.Launching iron core carries out inserting in the form of a ring in the plastic package die 19 after spiral becomes the spiral stator.As the spiral stator of ring-type,, be easy to just can insert 19 li of plastic package dies because of the peristome 14 that has tooth ends 13 or the hole 15 of yoke portion 11.But shorter than plastic package die because of the girth of stator core, there is the space in the spiral stator between the tooth ends of iron core and the yoke portion of yoke portion after inserting plastic package die.For this reason, can in the hole 15 of 11 yoke portions of yoke portion, be pressed into magnetic bearing pin 16 after, be pressed into interior, the circle larger-size plastic package die in, the yoke portion of yoke portion 11 is closely linked.Afterwards, carry out moulded section, plastic packaging stator can be made.The plastic packaging moulding is made up of box-like auxiliary mould, and auxiliary mould is assembled the back separately and carried out the plastic packaging moulding, can improve the operation of production.

Although this paper has described many embodiment, it will be understood by those of skill in the art that, can under the situation that does not break away from the spirit that is defined by the following claims and scope thereof, make other modification or change.

Claims

1. stator core, be assembled into ring-type by a plurality of unit iron cores (1), each unit iron core (1) all has yoke portion (11), from described yoke portion (11) radially the tooth portion (12) of radial extension and the tooth ends (13) that is positioned at described tooth portion (12) top, it is characterized in that, described stator core has at least one peristome (14), and described peristome (14) is located between the adjacent described tooth ends (13).

2. stator core according to claim 1 is characterized in that, described stator core also has at least one hole (15), and described hole (15) is located between the adjacent described yoke portion (11).

3. stator core according to claim 2 is characterized in that, the embedded magnetic bearing pin (16) that is complementary with described hole (15) that is inserted with of described hole (15).

4. stator core according to claim 2 is characterized in that, radially the position is corresponding one by one with described hole (15) for described peristome (14).

5. stator core according to claim 1 is characterized in that, described unit iron core (1) has and is used for the concavo-convex fitting portion that cooperates with the adjacent cells iron core.

6. stator core according to claim 5 is characterized in that, described concavo-convex fitting portion comprises the first protruding fitting portion (111) and the first recessed fitting portion of being located in the described yoke portion (11) (112).

7. a motor is characterized in that having each described stator core in the aforesaid right requirement 1 to 6.