CN207994748U - Teeth portion iron core blank and stator core - Google Patents
Teeth portion iron core blank and stator core Download PDFInfo
- Publication number
- CN207994748U CN207994748U CN201720935256.0U CN201720935256U CN207994748U CN 207994748 U CN207994748 U CN 207994748U CN 201720935256 U CN201720935256 U CN 201720935256U CN 207994748 U CN207994748 U CN 207994748U
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- teeth portion
- stator
- iron core
- core
- portion iron
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Abstract
The utility model discloses a kind of teeth portion iron core blank and stator cores, the teeth portion iron core blank includes the multiple punchings (1) laminated, punching is the circular ring plate with central through hole (4), the anchor ring of circular ring plate is formed with the multiple stator slots (2) being circumferentially arranged at equal intervals, stator tooth (3) is limited between two neighboring stator slot, punching includes fluting teeth portion core stamping (7) and locked groove teeth portion core stamping (8), in teeth portion core stamping of slotting, stator slot is radially through groove, between adjacent stator tooth independently of each other, in locked groove teeth portion core stamping, the radial inner end of each stator tooth is connected, so that the radial inner end closing of stator slot, fluting teeth portion core stamping and locked groove teeth portion core stamping are arranged along direction alternate intervals are laminated.Therefore relative to existing locked groove or fluting teeth portion iron core blank, the teeth portion iron core blank of the utility model is a kind of teeth portion iron core blank of half novel open flume type (or semi-closure slot type).
Description
Technical field
The utility model is related to the technical fields of motor, and in particular, to a kind of teeth portion iron core blank and stator core.
Background technology
The tooth yoke separate type stator core of motor in the prior art includes teeth portion iron core and yoke portion iron core, in general, teeth portion
The teeth portion iron core blank that iron core uses in process is divided into locked groove teeth portion iron core blank and fluting teeth portion iron core blank.
Wherein, as depicted in figs. 1 and 2, locked groove teeth portion iron core blank its stator tooth after complete winding with yoke portion iron core again
Then splicing assembling uses Broaching Technology to slot the radial inner end interconnecting piece of its stator tooth to obtain teeth portion iron core, purpose of slotting
Primarily to reducing motor flux leakage performance.The major defect of the stator core obtained using the blank forming and assembling is had：It is right
Broaching tool loss of slotting is big, the deformation of stator core inner end is big after fluting, burr and iron filings are more, and inside is be easy to cause when motor operates
The burr for rubbing or causing phenomena such as stuck, while being generated after slotting increases the conduction property between adjacent stators punching, causes
Motor eddy-current loss increases.
As shown in Figure 3 and Figure 4, it when teeth portion iron core is using fluting teeth portion iron core blank, i.e., ought laminate to obtain fluting teeth portion
After iron core blank, need not in addition process as teeth portion iron core, can directly with yoke portion iron core assembly, but due to its each stator tooth
For the structure of dispersion, therefore the teeth portion iron core of the program is when being installed on yoke portion iron core, and it is big and after installing to there is splicing difficulty
The problems such as internal diameter size of stator core is unstable, roundness is poor.
Utility model content
The purpose of this utility model is to provide a kind of teeth portion iron core blank, which can not only be reduced to broaching tool
Abrasion and reduce and generate burr and iron filings amount in its stator slot, while the teeth portion iron core obtained using teeth portion iron core blank is more
Convenient for being assembled on the yoke portion iron core of stator core.
To achieve the goals above, the utility model provides a kind of teeth portion iron core blank, and the teeth portion iron core blank includes
The multiple punchings laminated, the punching are the circular ring plate with central through hole, and the anchor ring of the circular ring plate is formed with circumferentially
The multiple stator slots being arranged at equal intervals, stator tooth is limited between the two neighboring stator slot, and the punching includes fluting tooth
Portion's core stamping and locked groove teeth portion core stamping, in the fluting teeth portion core stamping, the stator slot is radially through groove, phase
Between the adjacent stator tooth independently of each other, in the locked groove teeth portion core stamping, the radial inner end of each stator tooth
It is connected so that the radial inner end of the stator slot is closed, the fluting teeth portion core stamping and the locked groove teeth portion core stamping
It is arranged along direction alternate intervals are laminated.
Preferably, the sandwiched between laminating on direction along the punching, the two neighboring locked groove teeth portion core stamping
There is 1~3 fluting teeth portion core stamping.
In addition, the utility model additionally provides a kind of stator core, the stator core includes yoke portion iron core and teeth portion iron
Core, the teeth portion iron core are teeth portion iron core blank described above, and the internal ring portion of the teeth portion iron core blank is formed with multiple axis
To broach slot, the axial direction broach slot axially penetrates through the radial inner end interconnecting piece of the adjacent stator tooth with fixed described in radial communication
Pilot trench and the central through hole.
Preferably, the broaching width of the axial broach slot is 0.5mm~2mm.
Preferably, the teeth portion iron core is mounted on by the tooth ends of radial outside on the internal ring portion of yoke portion iron core.
Preferably, for the stator core including further including winding, the winding passes through the stator slot, and is wrapped in described
On stator tooth.
Preferably, the number of the stator slot in each punching is 16~72.
Through the above technical solutions, for locked groove teeth portion iron core blank or fluting teeth portion iron core blank, this practicality
Novel teeth portion iron core blank is a kind of teeth portion iron core blank of half novel open flume type (or semi-closure slot type).Due to the teeth portion iron
The fluting teeth portion core stamping of core blank is arranged alternately with locked groove teeth portion core stamping laminate after can form otch, therefore this reality
It can be effectively reduced the difficulty that rear process processes the fluting to form open flume type teeth portion iron core with novel teeth portion iron core blank, subtracted
It is few to the abrasion of broaching tool and the generation of iron filings, while also alleviate to the maximum extent stator core teeth portion iron core deformation with
And the drawbacks of eddy-current loss.
Other features and advantages of the utility model will be described in detail in subsequent specific embodiment part.
Description of the drawings
Attached drawing is to be used to provide a further understanding of the present invention, an and part for constitution instruction, and following
Specific implementation mode be used to explain the utility model together, but do not constitute limitations of the present invention.In the accompanying drawings：
Fig. 1 is the stereogram of locked groove teeth portion iron core blank in the prior art；
Fig. 2 is the partial enlarged view of the part I of Fig. 1；
Fig. 3 is the stereogram of fluting teeth portion iron core blank in the prior art；
Fig. 4 is the partial enlarged view of the part J of Fig. 3；
Fig. 5 is the stereogram of the teeth portion iron core blank of specific implementation mode according to the present utility model；
Fig. 6 is the partial enlarged view of the part K of Fig. 5；
Fig. 7 is the structural schematic diagram of teeth portion iron core；
Fig. 8 is the structural schematic diagram of yoke portion iron core.
Reference sign
1 punching, 2 stator slot
3 stator tooth, 4 central through hole
The axial broach slot of 5 radial inner end interconnecting piece 6
7 fluting teeth portion core stamping, 8 locked groove teeth portion core stamping
9 otch
Specific implementation mode
Specific embodiment of the present utility model is described in detail below in conjunction with attached drawing.It should be understood that herein
Described specific implementation mode is only used for describing and explaining the present invention, and is not intended to limit the utility model.
In the present invention, in the absence of explanation to the contrary, the noun of locality used such as " upper and lower, top, bottom " is usually
Be for direction shown in the drawings either for it is vertical, vertically or on gravity direction for each component mutual alignment
Relationship description word." inside and outside " is commonly referred to as each component for the radial direction in the axle center of the stator core of motor
Inside and outside mutual alignment relation word.
For the locked groove teeth portion iron core blank and fluting teeth portion iron core blank for producing teeth portion iron core in the prior art and using
The problems such as in the presence of being not easy to processing and installation and influencing the performance of motor stator, the utility model especially provides a kind of tooth
Portion's iron core blank, as shown in Figure 5, Figure 6, the teeth portion iron core blank include the multiple punchings 1 laminated, and punching 1 is logical with center
The circular ring plate in hole 4, the anchor ring of circular ring plate are formed with the multiple stator slots 2 being circumferentially arranged at equal intervals, two neighboring stator slot 2
Between limit stator tooth 3, punching 1 includes fluting teeth portion core stamping 7 and locked groove teeth portion core stamping 8, in fluting teeth portion iron
In core punching 7, stator slot 2 is radially through groove, between adjacent stator tooth 3 independently of each other, in locked groove teeth portion core stamping 8,
The radial inner end of each stator tooth 3 is connected so that the radial inner end of stator slot 2 is closed, fluting teeth portion core stamping 7 and locked groove tooth
Portion's core stamping 8 is arranged along direction alternate intervals are laminated.In this way, the teeth portion iron core blank phase of the utility model as shown in Figure 5
It is a kind of teeth portion iron of half open flume type (or semi-closure slot type) for locked groove teeth portion iron core blank or fluting teeth portion iron core blank
Core blank.It is laminated since the fluting teeth portion core stamping 7 of the teeth portion iron core blank is arranged alternately with locked groove teeth portion core stamping 8
After can form otch 9, therefore the teeth portion iron core blank of the utility model can be effectively reduced rear process and process to form fluting
The difficulty of the fluting of formula teeth portion iron core is reduced to the abrasion of broaching tool and the generation of iron filings, while also being alleviated to the maximum extent
The drawbacks of deformation of the teeth portion iron core of stator core and eddy-current loss.
Preferably, when laminating molding teeth portion iron core blank part, in laminating on direction along punching 1, two neighboring locked groove tooth
1~3 fluting teeth portion core stamping 7 is folded between portion's core stamping 8, to form larger otch 9 stretching convenient for broaching tool
Enter, while also ensuring the intensity of the teeth portion iron core blank.
The utility model additionally provides a kind of stator core, which includes yoke portion iron core and teeth portion iron core, teeth portion
Iron core is teeth portion iron core blank described above, and the internal ring portion of teeth portion iron core blank is formed with multiple axial broach slots 6, axial to draw
It cuts slot 6 and axially penetrates through the radial inner end interconnecting piece 5 of adjacent stators tooth 3 with radial communication stator slot 2 and central through hole 4.In this reality
With in novel stator core, using the teeth portion iron core blank of above-mentioned half open flume type (or semi-closure slot type), and to its wire pulling method
Shaft is to broach slot 6, with the teeth portion iron core of obtained open flume type.Therefore, because the stator core of the utility model using
A kind of teeth portion iron core of open flume type, greatly reduces the leakage field of stator tooth, and the conductive performance of magnetic flux is good, this is to improving motor effect
Rate and reduction motor heating (radiating) etc. have the effect of highly significant.
Further, the broaching width of the axial broach slot 6 is preferably 0.5mm~2mm, specifically with the width of otch 9
Subject to degree, broaching width ensure that, so as to the generation of less burr, the performance for preventing burr seized motor, reducing leakage field.
Usually, teeth portion iron core is mounted on the internal ring portion of yoke portion iron core as shown in Figure 8 by the tooth ends of radial outside
On.
Meanwhile it further includes winding that stator core, which includes, winding passes through stator slot 2, and is wrapped on stator tooth 3.
Power supply is usually being accessed and when driving load operation using the motor of the stator core of the utility model, motor
It is that suitable Anti-electromotive must be set, so that motor is run under high efficiency operating mode.To obtain suitable back-emf ginseng
Number, the number of the stator slot 2 in each punching 1 is preferably 16~72.
In addition, the utility model additionally provides a kind of processing method of stator core, this method includes：
Teeth portion iron core blank procedure of processing：Process the teeth portion iron core blank of half above-mentioned open flume type (or semi-closure slot type)；
Stator core assembling steps：Teeth portion iron core blank is assembled in yoke portion iron core；
Broaching Technology step：In the internal ring portion of teeth portion iron core blank, multiple axial broach slots 6 of broaching out, this is axially broached
Slot 6 axially penetrates through the radial inner end interconnecting piece 5 of adjacent stators tooth 3 with radial communication stator slot 2 and central through hole 4, to obtain tooth
Portion's iron core.
Usually, teeth portion iron core blank procedure of processing is completed first, then completes stator core assembling steps again, finally again
Complete Broaching Technology step.
Since the teeth portion iron core blank of the utility model includes the fluting teeth portion iron core blank and locked groove tooth of the prior art
The respective advantage of portion's iron core blank, that is, the broaching burr that teeth portion iron core blank generates of slotting is not easy to remain, and locked groove teeth portion iron
Core blank has many advantages, such as to be easily installed.
In the process of the stator core of the utility model, the teeth portion iron core blank of half open flume type (or semi-closure slot type)
It completes fluting to be processed into before open flume type teeth portion iron core, can be assembled as locked groove formula teeth portion iron core.For this purpose, in stator iron
Further include that coil windings are filled to teeth portion iron core blank in advance before teeth portion iron core is installed to yoke portion iron core in core assembling steps
In.
Alternatively, the processing method further includes after Broaching Technology step, coil windings are installed to teeth portion iron core blank
In part.After teeth portion iron core blank is broached into the teeth portion iron core of open flume type, then coil windings are installed to the teeth portion of open flume type
On iron core.
Preferred embodiments of the present invention, still, the utility model and unlimited are described in detail above in association with attached drawing
Detail in the above embodiment can be to the skill of the utility model in the range of the technology design of the utility model
Art scheme carries out a variety of simple variants, these simple variants belong to the scope of protection of the utility model.
It is further to note that specific technical features described in the above specific embodiments, in not lance
In the case of shield, it can be combined by any suitable means.In order to avoid unnecessary repetition, the utility model is to each
The possible combination of kind no longer separately illustrates.
In addition, arbitrary combination can also be carried out between a variety of different embodiments of the utility model, as long as it is not disobeyed
The thought for carrying on the back the utility model, equally should be considered as content disclosed in the utility model.
Claims (7)
1. a kind of teeth portion iron core blank, the teeth portion iron core blank includes the multiple punchings (1) laminated, and the punching (1) is tool
There are the circular ring plate of central through hole (4), the anchor ring of the circular ring plate to be formed with the multiple stator slots being circumferentially arranged at equal intervals
(2), stator tooth (3) is limited between the two neighboring stator slot (2), which is characterized in that the punching (1) includes fluting tooth
Portion's core stamping (7) and locked groove teeth portion core stamping (8), in the fluting teeth portion core stamping (7), the stator slot (2)
For radially through groove, between the adjacent stator tooth (3) independently of each other, in the locked groove teeth portion core stamping (8), Ge Gesuo
The radial inner end for stating stator tooth (3) is connected so that the radial inner end of the stator slot (2) is closed, the fluting teeth portion iron core punching
Piece (7) and the locked groove teeth portion core stamping (8) are arranged along direction alternate intervals are laminated.
2. teeth portion iron core blank according to claim 1, which is characterized in that in laminating on direction along the punching (1),
1~3 fluting teeth portion core stamping (7) is folded between the two neighboring locked groove teeth portion core stamping (8).
3. a kind of stator core, which is characterized in that the stator core includes yoke portion iron core and teeth portion iron core, the teeth portion iron core
To be formed with multiple axial drawings according to the internal ring portion of teeth portion iron core blank as claimed in claim 1 or 2, the teeth portion iron core blank
Slot (6) is cut, the axial direction broach slot (6) is axially penetrated through the radial inner end interconnecting piece (5) of the adjacent stator tooth (3) and connected with radial
Lead to the stator slot (2) and the central through hole (4).
4. stator core according to claim 3, which is characterized in that it is described axial direction broach slot (6) broaching width be
0.5mm~2mm.
5. stator core according to claim 3, which is characterized in that the tooth ends that the teeth portion iron core passes through radial outside
On the internal ring portion of yoke portion iron core.
6. stator core according to claim 3, which is characterized in that the stator core further includes winding, the winding
Across the stator slot (2), and it is wrapped on the stator tooth (3).
7. stator core according to claim 3, which is characterized in that the stator slot (2) in each punching (1)
Number be 16~72.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720935256.0U CN207994748U (en) | 2017-07-28 | 2017-07-28 | Teeth portion iron core blank and stator core |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720935256.0U CN207994748U (en) | 2017-07-28 | 2017-07-28 | Teeth portion iron core blank and stator core |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207994748U true CN207994748U (en) | 2018-10-19 |
Family
ID=63804305
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720935256.0U Active CN207994748U (en) | 2017-07-28 | 2017-07-28 | Teeth portion iron core blank and stator core |
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| Country | Link |
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| CN (1) | CN207994748U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107257169A (en) * | 2017-07-28 | 2017-10-17 | 广东威灵电机制造有限公司 | The processing method of teeth portion iron core blank, stator core and stator core |
-
2017
- 2017-07-28 CN CN201720935256.0U patent/CN207994748U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107257169A (en) * | 2017-07-28 | 2017-10-17 | 广东威灵电机制造有限公司 | The processing method of teeth portion iron core blank, stator core and stator core |
| CN107257169B (en) * | 2017-07-28 | 2023-12-01 | 广东威灵电机制造有限公司 | Tooth iron core blank, stator iron core and processing method of stator iron core |
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