CN210724336U - Stator inner iron core punching sheet group - Google Patents
Stator inner iron core punching sheet group Download PDFInfo
- Publication number
- CN210724336U CN210724336U CN201920847065.8U CN201920847065U CN210724336U CN 210724336 U CN210724336 U CN 210724336U CN 201920847065 U CN201920847065 U CN 201920847065U CN 210724336 U CN210724336 U CN 210724336U
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- iron core
- pole shoe
- stator
- core punching
- stator inner
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- Iron Core Of Rotating Electric Machines (AREA)
Abstract
The utility model discloses a stator inner iron core punching sheet group, which is formed by integrally punching the stator inner iron core punching sheet; the stator inner core punching sheet at least comprises two tooth parts, and a tooth part inter-groove is formed between the tooth parts; the root of each tooth part is extended with an arc-shaped pole shoe, the arc-shaped pole shoe is provided with two ends, the two ends of the arc-shaped pole shoe are formed by extending the root of the tooth part from left to right, a pole shoe connecting sheet is connected between the adjacent pole shoes, a C-shaped opening is formed between the adjacent two pole shoes and the pole shoe connecting sheet, the C-shaped opening faces inwards, when an inner iron core of the stator is manufactured, the iron core punching sheets in the stator are staggered and stacked, the pole shoe connecting sheet plays a role in bridging connection between the two tooth parts, the pole shoe connecting sheet is manufactured to be far away from the rotor through the C-shaped opening, the rotor is prevented from being interfered when a magnetic induction rotating ring works.
Description
Technical Field
The utility model relates to a motor accessory specifically is an iron core towards piece in stator and iron core towards piece group in stator thereof.
Background
The traditional stator inner iron core punching sheet is made of one sheet, the number of tooth punching parts of the stator inner iron core is small, the tooth parts are short, and the winding distance of a winding coil is large, so that the phenomena of large motor torque fluctuation, easy jitter generation, large load characteristic change in a low-speed state and unstable operation exist during N/S pole conversion transition.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problem, the utility model provides a simple structure, reasonable in design can use the interior iron core punching of stator of making the interior iron core of stator to misplace.
The scheme for solving the technical problems is as follows:
a stator inner iron core punching sheet is characterized in that the stator inner iron core punching sheet is integrally punched and formed; the stator inner core punching sheet at least comprises two tooth parts, and a tooth part inter-groove is formed between the tooth parts; an arc-shaped pole shoe extends from the root of each tooth part, the arc-shaped pole shoe is provided with two ends, the two ends of the arc-shaped pole shoe are formed by extending the root of the tooth part left and right, a pole shoe connecting sheet is connected between the adjacent pole shoes, a C-shaped opening is formed between the adjacent two pole shoes and the pole shoe connecting sheet, and the C-shaped opening faces inwards.
The preferable technical scheme is as follows: arc notches are formed in the two sides of the tail end of the tooth part in a stamping mode, and arc salient points are formed on the two sides of the tail end part.
The preferable technical scheme is as follows: and a semicircular notch for positioning with the stator yoke part is arranged at the tail end of one tooth part.
The preferable technical scheme is as follows: a stator inner iron core punching sheet group comprises eight stator inner iron core punching sheets, wherein each stator inner iron core punching sheet is formed in an integrated punching mode; each stator inner iron core punching sheet comprises two tooth parts, and a groove between the tooth parts is formed between the tooth parts; an arc-shaped pole shoe extends from the root of each tooth part, the arc-shaped pole shoe is provided with two ends, the two ends of the arc-shaped pole shoe are formed by extending the root of the tooth part left and right, a pole shoe connecting sheet is connected between the adjacent pole shoes, a C-shaped opening is formed between the adjacent two pole shoes and the pole shoe connecting sheet, and the C-shaped opening faces inwards; an air gap is reserved between adjacent stator inner iron core punching sheets, and the air gap is arranged between adjacent pole shoes of the adjacent stator inner iron core punching sheets.
The preferable technical scheme is as follows: a prefabricated punching piece for manufacturing stator inner core punching pieces is characterized in that the prefabricated punching piece is integrally punched and formed; the prefabricated punching piece comprises sixteen tooth parts, and tooth part grooves are formed among the tooth parts; the root of each tooth part extends to form an arc-shaped pole shoe, the arc-shaped pole shoe is provided with two ends, the two ends of the arc-shaped pole shoe are formed by extending the root of the tooth part to the left and the right, a pole shoe connecting sheet is connected between the adjacent pole shoes, the pole shoe connecting sheet can be punched at least every two tooth parts, a plurality of stator inner iron core punching sheets are formed after punching, and the plurality of stator inner iron core punching sheets form a sheet group; a C-shaped opening is formed between the connecting sheet of the unblanked pole shoe and the two adjacent pole shoes, and the C-shaped opening faces inwards; the pole shoe connecting sheet between two adjacent pole shoes is broken to form an air gap opening.
The utility model discloses an advantage of iron core towards piece in stator does: integrally punching and forming the iron core punching sheet in the stator; the stator inner core punching sheet at least comprises two tooth parts, and a tooth part inter-groove is formed between the tooth parts; the root of each tooth part is extended with an arc-shaped pole shoe, the arc-shaped pole shoe is provided with two ends, the two ends of the arc-shaped pole shoe are formed by extending the root of the tooth part from left to right, a pole shoe connecting sheet is connected between the adjacent pole shoes, a C-shaped opening is formed between the adjacent two pole shoes and the pole shoe connecting sheet, the C-shaped opening faces inwards, when an inner iron core of the stator is manufactured, the iron core punching sheets in the stator are staggered and stacked, the pole shoe connecting sheet plays a role in bridging connection between the two tooth parts, the pole shoe connecting sheet is manufactured to be far away from the rotor through the C-shaped opening, the rotor is prevented from being interfered when a magnetic induction rotating ring works.
Drawings
FIG. 1 is a front view of an iron core punching sheet in a stator of the utility model;
FIG. 2 is a front view of the iron core punching sheet set in the stator of the utility model;
FIG. 3 is a perspective view of the punching sheet set of the iron core in the stator of the product of the present invention;
FIG. 4 is a perspective view of the stator inner core punching sheet set for manufacturing the stator inner core according to the present invention;
FIG. 5 is a side view of the stator core punching sheet set for manufacturing the stator core according to the present invention;
fig. 6 is the front view of the prefabricated sheet punching piece of the inner core punching sheet for manufacturing the stator of the utility model.
Detailed Description
As shown in fig. 1: a stator inner iron core punching sheet is characterized in that the stator inner iron core punching sheet is integrally punched and formed; the stator inner iron core punching sheet A comprises two tooth parts 1, and a tooth part inter-groove 2 is formed between the tooth parts; an arc-shaped pole shoe 3 extends from the root of each tooth part 1, the arc-shaped pole shoe 3 is provided with two ends, the two ends of the arc-shaped pole shoe 3 extend from the root of the tooth part 1 to the left and the right, a pole shoe connecting sheet 4 is connected between the adjacent pole shoes, a C-shaped opening 5 is formed between the adjacent two pole shoes and the pole shoe connecting sheet, and the C-shaped opening 5 faces inwards; the pole shoe connecting sheet 4 plays a role in bridging the connection of the two tooth parts 1, and the pole shoe connecting sheet 4 is far away from the rotor by making a C-shaped opening, so that the magnetic induction rotating ring is prevented from interfering the rotor during working.
Tooth portion tail end both sides equal stamping forming has the arc notch, and most tail end portion both sides are formed with the arc bump, and arc notch, arc bump are used for cooperateing with stator yoke portion and are connected.
The tail end of one tooth part is provided with a semicircular notch used for being positioned with the stator yoke part, and the semicircular notch and the other semicircular notch on the inner wall of the stator yoke part are positioned to form a complete round hole.
As shown in fig. 1, 2, 3, and 4: a stator inner iron core punching sheet group comprises eight stator inner iron core punching sheets A, wherein each stator inner iron core punching sheet A is formed in an integrated punching mode; each stator inner iron core punching sheet A comprises two tooth parts 1, and a tooth part inter-groove 2 is formed between the tooth parts 1; an arc-shaped pole shoe 3 extends from the root of each tooth part 1, the arc-shaped pole shoe is provided with two ends, the two ends of the arc-shaped pole shoe are formed by extending the root of the tooth part left and right, a pole shoe connecting sheet 4 is connected between the adjacent pole shoes, a C-shaped opening 5 is formed between the adjacent two pole shoes and the pole shoe connecting sheet, and the C-shaped opening faces inwards; an air gap A1 is arranged between adjacent stator inner iron core punching sheets, and an air gap A1 is arranged between adjacent pole shoes of the adjacent stator inner iron core punching sheets; the stator inner core stamped sheets are used for punching and laminating to manufacture the stator inner core, the stator inner core stamped sheets are staggered and laminated when the stator inner core is manufactured (two layers at the bottom, the middle and the upper part are staggered and laminated respectively when the stator inner core is manufactured), the pole shoe connecting sheets play a role in bridging when the stator inner core stamped sheets are staggered and laminated, the iron cores are connected to form a whole, and after the stator inner core is manufactured, an air gap A1 between the original adjacent stator inner core stamped sheets becomes an air gap hole 51. The air gap hole is used for preventing magnetic saturation of a rotor arrangement hole in work and has the functions of exhausting, radiating and discharging residual magnetism, the air gap hole is a gap hole reserved at the joint of the iron core, the air gap hole is used for reducing the magnetic conductivity, so that the characteristic of the wire Wei is less dependent on the initial magnetic conductivity of the magnetic core material, and the air gap hole can avoid the phenomenon of magnetic saturation under the condition of alternating current large signals or direct current bias and better control the inductance.
As shown in fig. 2 and 4: the stator inner iron core punching sheet group consisting of eight stator inner iron core punching sheets A forms a gear ring, the middle round hole is a rotor arrangement hole, and the middle part is also the rotor arrangement hole after the iron core is formed.
As shown in fig. 5, 1, 2, and 3: a prefabricated punching piece for manufacturing stator inner core punching pieces is characterized in that a prefabricated punching piece B is integrally punched and formed; the prefabricated punching piece B comprises sixteen tooth parts 1, and tooth part grooves 2 are formed among the tooth parts; an arc-shaped pole shoe 3 extends from the root of each tooth part 2, the arc-shaped pole shoe is provided with two ends, the two ends of the arc-shaped pole shoe are formed by extending the root of the tooth part to the left and the right, a pole shoe connecting sheet 4 is connected between the adjacent pole shoes, the pole shoe connecting sheet 4 can be punched at least every two tooth parts, a plurality of stator inner iron core punching sheets A are formed after punching, and the stator inner iron core punching sheets A form a sheet group; a C-shaped opening 5 is formed between the pole shoe connecting sheet 4 which is not punched and two adjacent pole shoes 3, and the C-shaped opening faces inwards; the pole shoe connecting sheet between two adjacent pole shoes is punched to form an air gap opening A1.
As shown in fig. 2 and 3: for example, 1: and a pole shoe connecting sheet is punched by two tooth parts of each grid, so that eight stator inner iron core stamped sheets A form a sheet group.
By analogy with e.g. 1, e.g. 2: and punching a pole shoe connecting sheet by four tooth parts of each grid to form four stator inner iron core punching sheets, wherein a sheet group is formed by the four stator inner iron core punching sheets.
By analogy with e.g. 1, e.g. 3: and a pole shoe connecting sheet is punched by eight tooth parts of each grid, so that two stator inner iron core punching sheets are formed, and a sheet group is formed by the two stator inner iron core punching sheets.
The above is only the preferred embodiment of the present invention, the protection scope of the present invention is not limited to the above embodiments, and all technical solutions belonging to the idea of the present invention belong to the protection scope of the present invention; without departing from the principles of the present invention, several modifications and refinements are considered within the scope of the present invention.
Claims (3)
1. The utility model provides an iron core punching sheet group in stator which characterized in that: the stator inner iron core punching sheet group comprises eight stator inner iron core punching sheets, and each stator inner iron core punching sheet is formed in an integrated punching mode; each stator inner iron core punching sheet comprises two tooth parts, and a groove between the tooth parts is formed between the tooth parts; an arc-shaped pole shoe extends from the root of each tooth part, the arc-shaped pole shoe is provided with two ends, the two ends of the arc-shaped pole shoe are formed by extending the root of the tooth part left and right, a pole shoe connecting sheet is connected between the adjacent pole shoes, a C-shaped opening is formed between the adjacent two pole shoes and the pole shoe connecting sheet, and the C-shaped opening faces inwards; an air gap is reserved between adjacent stator inner iron core punching sheets, and the air gap is arranged between adjacent pole shoes of the adjacent stator inner iron core punching sheets.
2. The stator core punching sheet set according to claim 1, wherein: arc notches are formed in the two sides of the tail end of the tooth part in a stamping mode, and arc salient points are formed on the two sides of the tail end part.
3. The stator core punching sheet set according to claim 1, wherein: and a semicircular notch for positioning with the stator yoke part is arranged at the tail end of one tooth part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920847065.8U CN210724336U (en) | 2019-06-05 | 2019-06-05 | Stator inner iron core punching sheet group |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920847065.8U CN210724336U (en) | 2019-06-05 | 2019-06-05 | Stator inner iron core punching sheet group |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210724336U true CN210724336U (en) | 2020-06-09 |
Family
ID=70935171
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920847065.8U Active CN210724336U (en) | 2019-06-05 | 2019-06-05 | Stator inner iron core punching sheet group |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210724336U (en) |
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2019
- 2019-06-05 CN CN201920847065.8U patent/CN210724336U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: 528000 Daliang feie Industrial Zone, Shunde District, Foshan City, Guangdong Province Patentee after: Guangdong Zhichuang Electric Co.,Ltd. Address before: 528300 Daliang feie Industrial Zone, Shunde District, Foshan City, Guangdong Province Patentee before: FOSHAN CITY SHUNDE DISTRICT XIECHUANG MOTOR MANUFACTURING CO.,LTD. |
|
| CP03 | Change of name, title or address |