CN201549945U

CN201549945U - Iron-core of motor stator

Info

Publication number: CN201549945U
Application number: CN2009203148698U
Authority: CN
Inventors: 王淼森; 金云川
Original assignee: Wolong Electric Group Co Ltd; Zhejiang Wolong Home Appliance Motor Co Ltd
Current assignee: Wolong Electric Drive Group Co Ltd; Zhejiang Wolong Home Appliance Motor Co Ltd
Priority date: 2009-11-17
Filing date: 2009-11-17
Publication date: 2010-08-11
Anticipated expiration: 2019-11-17

Abstract

The utility model relates to an iron-core of the motor stator. Existing stator cores are folded and pressed together, which is liable to cause the error problem of depth of parallelism at the end-face on double sides of the iron-core as well as the error problem of iron-core inner bore perpendicularity at the end-face on double sides. The problem effects assembly precision of the end cap and the iron-core, and may cause large noise when the electric motor is operated. The iron-core provided by the utility model is composed of multiple punching pieces with mark grooves, and is characterized in that the iron-core includes the first punching piece group and the second punching piece group, wherein the upper part of the first punching piece group forms the first mark groove, and the lower part of the second punching piece group forms the second mark groove whose position is opposite to that of the first mark groove. The utility model can effectively reduce error of depth of parallelism at the end-faces of the double sides of the iron-core as well as perpendicularity error of the end-face and the inner bore after combination because different punching pieces have thickness differences, thereby improving assembly positioning accuracy of the end cap and the iron-core, and decreasing electric motor noise.

Description

A kind of iron core of motor stator

Technical field

The utility model belongs to motor component, is specifically related to a kind of iron core of motor stator.

Background technology

The mark groove is all formed at the top unshakable in one's determination of motor stator, can be convenient to a plurality of punchings that overlap together are calibrated, and each punching position is consistent.Existing iron core all is to overlap together formation after the alignment of the mark groove in the punching, the unification of mark groove is formed on the same side direction unshakable in one's determination, exist thickness poor each other and constitute a plurality of punchings unshakable in one's determination, easily cause error and the both sides end face and the endoporus error of perpendicularity problem unshakable in one's determination of both sides unshakable in one's determination faces parallel after overlapping together.Influence end cap and assembly precision unshakable in one's determination thus, when motor moves, caused big noise easily.

Summary of the invention

The purpose of this utility model provides a kind of iron core of motor stator, can reduce both sides unshakable in one's determination end face parallelism error, makes end cap and assembly precision unshakable in one's determination higher, the noise that produces when reducing the motor operation.

For this reason, the utility model is taked following scheme: a kind of iron core of motor stator, iron core is made up of a plurality of punchings that have the mark groove, it is characterized in that described iron core comprises the first punching group and the second punching group, the first mark groove is formed at the top of the described first punching group, and the second mark groove with the first mark groove position opposite is formed at the bottom of the described second punching group.The mark groove can be used for a plurality of punchings that overlap together are calibrated, and the mark groove is opened opposite location two groups of above and belows unshakable in one's determination respectively, can to a certain degree remedy because the error of the thickness difference of a plurality of punchings after causing laminating own.

The described first punching group and the second punching group by etc. the punching riveted of quantity form.In order to improve the precision of both sides unshakable in one's determination end face, make the first punching group consistent with mark groove quantity on the second punching group.

The beneficial effects of the utility model are embodied in: the alignment of the mark groove of half punching is stacked, the mark groove alignment of second half punching is stacked, again both are mutually 180 degree and put together and rivet tightly, make the mark groove of both sides form complementation.Can effectively reduce because the error of the perpendicularity of the parallelism error of the unshakable in one's determination both sides end face of different punchings after existing the thickness difference to cause making up and end face and endoporus has improved the assembling and positioning precision of end cap with iron core, reduce noise of motor.

Description of drawings

Fig. 1 is the Facad structure schematic diagram of the utility model iron core.

Fig. 2 is that the A-A of Fig. 1 is to view.

Fig. 3 is that the B of Fig. 1 is to view.

Fig. 4 is that the C of Fig. 1 is to view.

Among the figure: 1. 2. mark grooves, 3. first mark grooves, 4. second mark grooves, 5. first punching groups, 6. second punching groups unshakable in one's determination.

Embodiment

Below in conjunction with specification drawings and specific embodiments substantive distinguishing features of the present utility model is further described.

As Fig. 1-shown in Figure 4, a kind of iron core of motor stator, unshakable in one's determination 1 by etc. the first punching group 5 and the second punching group, 6 riveteds of quantity form, the punching group is overrided to form by the silicon steel sheet that has mark groove 2.The second mark groove 4 of formation of the first mark groove, 3, the second punching groups, 6 bottoms and the first mark groove, 3 position opposite is formed at the first punching group, 5 tops.The upper and lower sides mark groove 2 of the utility model iron core 1 forms complementary.Can effectively reduce because the error of the perpendicularity of the parallelism error of the iron core 1 both sides end face of monolithic punching thickness after causing making up and end face and endoporus has improved the assembling and positioning precision of end cap with iron core 1, reduce noise of motor.

Claims

1. the iron core of a motor stator, (1) unshakable in one's determination is made up of a plurality of every punching that all has mark groove (2), it is characterized in that described iron core (1) comprises the first punching group (5) and the second punching group (6), the first mark groove (3) is formed at the top of the described first punching group (5), and the second mark groove (4) with first mark groove (3) position opposite is formed at the bottom of the described second punching group (6).

2. according to the iron core of the described a kind of motor stator of claim 1, it is characterized in that the described first punching group (5) and the second punching group (6) by etc. the punching riveted of quantity form.