CN112234732A - Stator and rotor iron core punching sheet of permanent magnet new energy automobile motor - Google Patents
Stator and rotor iron core punching sheet of permanent magnet new energy automobile motor Download PDFInfo
- Publication number
- CN112234732A CN112234732A CN202011018359.3A CN202011018359A CN112234732A CN 112234732 A CN112234732 A CN 112234732A CN 202011018359 A CN202011018359 A CN 202011018359A CN 112234732 A CN112234732 A CN 112234732A
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- China
- Prior art keywords
- stator
- iron core
- magnetic steel
- disc
- permanent magnet
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 title claims abstract description 50
- 238000004080 punching Methods 0.000 title claims abstract description 27
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 45
- 239000010959 steel Substances 0.000 claims abstract description 45
- 238000009423 ventilation Methods 0.000 claims abstract description 23
- 230000003014 reinforcing effect Effects 0.000 claims abstract description 11
- 239000000945 filler Substances 0.000 claims description 3
- 230000005389 magnetism Effects 0.000 claims description 2
- 230000002093 peripheral effect Effects 0.000 abstract 1
- 230000007547 defect Effects 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K1/00—Details of the magnetic circuit
- H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
- H02K1/12—Stationary parts of the magnetic circuit
- H02K1/17—Stator cores with permanent magnets
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K1/00—Details of the magnetic circuit
- H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
- H02K1/12—Stationary parts of the magnetic circuit
- H02K1/20—Stationary parts of the magnetic circuit with channels or ducts for flow of cooling medium
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K1/00—Details of the magnetic circuit
- H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
- H02K1/22—Rotating parts of the magnetic circuit
- H02K1/27—Rotor cores with permanent magnets
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K1/00—Details of the magnetic circuit
- H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
- H02K1/22—Rotating parts of the magnetic circuit
- H02K1/32—Rotating parts of the magnetic circuit with channels or ducts for flow of cooling medium
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Iron Core Of Rotating Electric Machines (AREA)
Abstract
The invention discloses a stator and rotor iron core punching sheet of a permanent magnet new energy automobile motor, which comprises an iron core disc. The iron core disc is circular, a plurality of groups of ventilation slots are uniformly arranged on the edge of the iron core disc, a plurality of groups of magnetic steel slot groups are uniformly arranged on the outer side of the iron core disc, a central mounting hole is formed in the center of the iron core disc, and a reinforcing ring is arranged between the central mounting hole and the iron core disc body; a stator core is arranged between the reinforcing ring and the core plate, and stator slots which are uniformly distributed are arranged on the inner wall of the stator core; the magnetic steel groove group comprises magnetic steel grooves which are symmetrically arranged; the magnetic steel grooves comprise a plurality of magnetic steel grooves which are arranged along the circumferential direction of the iron core disc at intervals, slits are arranged on the magnetic steel grooves along the two sides of the circumferential direction of the iron core disc, and the slits are adjacent to the peripheral surface of the iron core disc; a magnetic gap is arranged between every two slits; the bottoms of the slits are arranged at an included angle of 130 degrees. The stator and rotor core punching magnetic steel can be embedded in the magnetic steel groove, and the generation of interpolar magnetic leakage is reduced.
Description
Technical Field
The invention relates to the technical field of permanent magnet motors, in particular to a stator and rotor iron core punching sheet of a permanent magnet new energy automobile motor.
Background
The permanent magnet motor is a motor which generates a synchronous rotating magnetic field by permanent magnet excitation, the permanent magnet is used as a rotor to generate a rotating magnetic field, and a three-phase stator winding is reacted through an armature under the action of the rotating magnetic field to induce three-phase symmetrical current. The permanent magnet motor is widely used due to the advantages of high efficiency, low energy consumption and the like, the rotor magnetic steel of the common permanent magnet motor is of an externally-embedded type, namely, the magnetic steel is embedded in an outer circular groove of a rotor punching sheet, the rotor punching sheet is a full-circle sheet, the structure has the problems of inter-electrode magnetic flux leakage, no ventilation and the like, the motor performance can be influenced by the problems, and the working efficiency and the service life of the motor are reduced.
Disclosure of Invention
In order to solve the defects of the prior art, the invention aims to overcome the defects of the existing iron core stamped sheet, and provides a permanent magnet motor stator and rotor iron core stamped sheet.
In order to achieve the purpose, the invention provides the following technical scheme:
permanent magnetism new energy automobile motor stator rotor core towards piece includes:
an iron core disc;
the iron core disc is circular, a plurality of groups of ventilation slots are uniformly formed in the edge of the iron core disc, a plurality of groups of magnetic steel slot groups are uniformly formed in the outer side of the iron core disc, a plurality of groups of ventilation lightening holes are uniformly formed in the inner side of the iron core disc, a central mounting hole is formed in the center of the iron core disc, a reinforcing ring is arranged between the central mounting hole and the iron core disc body, and a mounting slot is formed in the inner side of the reinforcing ring; a stator core is arranged between the reinforcing ring and the core plate, and stator slots which are uniformly distributed are arranged on the inner wall of the stator core;
the magnetic steel groove group comprises magnetic steel grooves which are symmetrically arranged; the magnetic steel grooves comprise a plurality of magnetic steel grooves which are arranged along the circumferential direction of the iron core disc at intervals, slits are arranged on the two sides of the magnetic steel grooves along the circumferential direction of the iron core disc, and the slits are adjacent to the outer circumferential surface of the iron core disc; a magnetic gap is arranged between every two slits; the bottoms of the slits are arranged at an included angle of 130 degrees.
Further, the cross section of the ventilation groove is circular.
Furthermore, the magnetic steel groove is a strip-shaped groove, the front end of the strip-shaped groove is provided with a front oblique convex card, and the rear end of the strip-shaped groove is provided with a rear convex card.
Further, the inner wall of the stator core between the stator slots is provided with stator teeth.
Furthermore, a filling hole is formed between the two stator teeth.
Furthermore, the stator slot of the stator core is gradually increased from the inner diameter side of the stator core to the outer diameter side of the stator core and is narrowed at the inner diameter opening of the stator core, the depth of the stator slot is between one half and two thirds of the thickness of the stator core, and the central lines between the stator slot and the stator slot are respectively distributed in a 30-degree included angle mode by taking the center of the stator core as an axis.
Further, the ventilation lightening holes are arranged between the stator slots.
Further, the ventilation groove is arranged between the magnetic steel grooves.
Furthermore, the magnetic gap is a linear groove gap.
The invention has the beneficial effects that: 1. the permanent magnet motor stator and rotor core punching sheet has the advantages that the ventilation lightening holes can achieve the effect of reducing the temperature inside the magnetic steel, and the overall weight of the permanent magnet motor stator and rotor core punching sheet is reduced, so that more work can be output, and excessive waste on the permanent magnet motor stator and rotor core punching sheet is avoided. The permanent magnet motor stator and rotor core punching sheet can prolong the service life and improve the working efficiency.
2. According to the stator and rotor core punching sheet of the permanent magnet motor, the magnetic steel can be embedded in the magnetic steel groove, and the magnetic steel is tightly pressed on the inner side of the core plate through the front inclined convex card and the rear convex card, so that the generation of interpolar magnetic leakage is reduced.
Drawings
FIG. 1 is a schematic view of the structure of an iron core punching sheet according to the present invention;
FIG. 2 is a schematic view of a slit structure according to the present invention;
FIG. 3 is a schematic view of a magnetic steel slot structure according to the present invention;
fig. 4 is a schematic view of the structure of the stator slot of the present invention.
In the figure: 1-core disc, 2-reinforcing ring, 3-stator core, 4-filler hole, 5-magnetic steel slot, 6-ventilation slot, 7-ventilation lightening hole, 8-central mounting hole, 21-mounting slot, 301-stator slot, 302-stator tooth, 501-magnetic gap, 502-slit.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Referring to fig. 1-4, the invention discloses a stator and rotor iron core punching sheet of a permanent magnet new energy automobile motor, which comprises an iron core disc 1. The iron core disc 1 is circular, a plurality of groups of ventilation slots 6 are uniformly arranged on the edge of the iron core disc 1, a plurality of groups of magnetic steel slot groups are uniformly arranged on the outer side of the iron core disc 1, a plurality of groups of ventilation lightening holes 7 are uniformly arranged on the inner side of the iron core disc 1, a central mounting hole 8 is arranged in the center of the iron core disc 1, a reinforcing ring 2 is arranged between the central mounting hole 8 and the body of the iron core disc 1, and a mounting groove 21 is arranged on the inner side of the reinforcing ring 2; a stator core 3 is arranged between the reinforcing ring 2 and the core plate 1, and stator slots 301 which are uniformly distributed are arranged on the inner wall of the stator core 3.
The magnetic steel groove group comprises magnetic steel grooves 5 which are symmetrically arranged; the magnetic steel slots 5 comprise a plurality of magnetic steel slots arranged at intervals along the circumferential direction of the iron core disc 1, slits 502 are arranged on the two sides of the magnetic steel slots 5 along the circumferential direction of the iron core disc 1, and the slits 502 are adjacent to the outer circumferential surface of the iron core disc 1; a magnetic gap 501 is arranged between every two slits 502; the bottoms of the slots 502 are disposed at an angle of 130 degrees.
As a further optimization of the scheme, the cross section of the ventilation groove 6 is circular, the magnetic steel groove 5 is a strip-shaped open groove, the front end of the strip-shaped groove is provided with a front oblique convex card 5-1, and the rear end of the strip-shaped groove is provided with a rear convex card 5-2. The inner wall of the stator core between the stator slots 301 is provided with stator teeth 302. A filler hole 4 is arranged between the two stator teeth 302, the stator slot 301 of the stator core 3 is gradually enlarged from the inner diameter side of the stator core to the outer diameter side of the stator core and is narrowed at the inner diameter opening of the stator core, the depth of the stator slot 301 is between one half to two thirds of the thickness of the stator core, and the central lines between the stator slot and the stator slot are respectively distributed at 30-degree included angles by taking the center of the stator core 3 as an axis. The ventilation lightening holes 7 are arranged between the stator slots 301, the ventilation slots 6 are arranged between the magnetic steel slots 5, and the magnetic gaps 501 are linear groove gaps.
When the permanent magnet motor stator and rotor core punching sheet is used, a plurality of permanent magnet motor stator and rotor core punching sheets are overlapped together and fixed on the iron core through the central mounting hole 8, the iron core is positioned through the mounting groove 21, then the magnetic steel is placed into the magnetic steel groove 5 and is compressed through the front inclined convex card 5-1 and the rear convex card 5-2, after the permanent magnet motor stator and rotor core punching sheet is mounted, the ventilation lightening holes 7 arranged in the middle and the ventilation grooves 6 at the edges can play a ventilation role, the airflow flowing in the middle and the edges can be effectively increased, the temperature of the permanent magnet motor stator and rotor core punching sheet can be reduced, particularly, the temperature in the middle of the permanent magnet motor stator and rotor core punching sheet can be reduced, the temperature of the magnetic steel can be reduced from the outer side and the.
And the magnetic steel is embedded in the magnetic steel slot 5, and is pressed on the inner side of the iron core disc 1 through the front inclined convex card 5-1 and the rear convex card 5-2, so that the generation of interpolar magnetic leakage is reduced.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.
Claims (9)
1. Permanent magnetism new energy automobile motor stator rotor core towards piece, its characterized in that includes:
an iron core disc (1);
the iron core disc (1) is circular, a plurality of groups of ventilation grooves (6) are uniformly formed in the edge of the iron core disc (1), a plurality of groups of magnetic steel groove groups are uniformly formed in the outer side of the iron core disc (1), a plurality of groups of ventilation lightening holes (7) are uniformly formed in the inner side of the iron core disc (1), a central mounting hole (8) is formed in the center of the iron core disc (1), a reinforcing ring (2) is arranged between the central mounting hole (8) and the iron core disc (1) body, and a mounting groove (21) is formed in the inner side of the reinforcing ring (2); a stator core (3) is arranged between the reinforcing ring (2) and the core plate (1), and stator slots (301) which are uniformly distributed are formed in the inner wall of the stator core (3);
the magnetic steel groove group comprises magnetic steel grooves (5) which are symmetrically arranged; the magnetic steel grooves (5) comprise a plurality of magnetic steel grooves which are arranged along the circumferential direction of the iron core disc (1) at intervals, slits (502) are arranged on the magnetic steel grooves (5) along the circumferential direction of the iron core disc (1), and the slits (502) are adjacent to the outer circumferential surface of the iron core disc (1); a magnetic gap (501) is arranged between every two slits (502); the bottoms of the slits (502) are arranged at an included angle of 130 degrees.
2. The stator and rotor core punching sheet of the permanent magnet new energy automobile motor as claimed in claim 1, wherein the cross section of the ventilation slot (6) is circular.
3. The stator and rotor core punching sheet of the permanent magnet new energy automobile motor as claimed in claim 1, wherein the magnetic steel slot (5) is a strip-shaped slot, a front oblique convex card (5-1) is arranged at the front end of the strip-shaped slot, and a rear convex card (5-2) is arranged at the rear end of the strip-shaped slot.
4. The stator and rotor core punching sheet of the permanent magnet new energy automobile motor as claimed in claim 1, wherein the inner wall of the stator core between the stator slots (301) is provided with stator teeth (302).
5. The stator and rotor core punching sheet of the permanent magnet new energy automobile motor as claimed in claim 4, wherein a filler hole (4) is formed between two of the stator teeth (302).
6. The stator and rotor core punching sheet of the permanent magnet new energy automobile motor according to claim 1, wherein the stator slots (301) of the stator core (3) are gradually enlarged from the inner diameter side of the stator core to the outer diameter side of the stator core and narrowed at an inner diameter opening of the stator core, the depth of the stator slots (301) is between one half and two thirds of the thickness of the stator core, and center lines between the stator slots are respectively distributed at 30-degree included angles by taking the center of the stator core (3) as an axis.
7. The stator and rotor core punching sheet of the permanent magnet new energy automobile motor as claimed in claim 1, wherein the ventilation lightening holes (7) are arranged between the stator slots (301).
8. The stator and rotor core punching sheet of the permanent magnet new energy automobile motor as claimed in claim 1, wherein the ventilation slots (6) are arranged between the magnetic steel slots (5).
9. The stator and rotor core punching sheet of the permanent magnet new energy automobile motor as claimed in claim 1, wherein the magnetic gap (501) is a linear groove gap.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011018359.3A CN112234732A (en) | 2020-09-24 | 2020-09-24 | Stator and rotor iron core punching sheet of permanent magnet new energy automobile motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011018359.3A CN112234732A (en) | 2020-09-24 | 2020-09-24 | Stator and rotor iron core punching sheet of permanent magnet new energy automobile motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112234732A true CN112234732A (en) | 2021-01-15 |
Family
ID=74108113
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011018359.3A Pending CN112234732A (en) | 2020-09-24 | 2020-09-24 | Stator and rotor iron core punching sheet of permanent magnet new energy automobile motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112234732A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112886742A (en) * | 2021-01-20 | 2021-06-01 | 浙江达可尔汽车电子科技有限公司 | Oil-cooled motor rotor |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105186818A (en) * | 2015-09-14 | 2015-12-23 | 常州市普世汽车电动系统有限公司 | Permanent magnet synchronous motor with hybrid magnetic circuit arrangement |
| CN206412854U (en) * | 2017-01-05 | 2017-08-15 | 安徽东道新能源科技有限公司 | A kind of permanent-magnetic synchronous motor rotor and punching |
| CN207819576U (en) * | 2017-10-11 | 2018-09-04 | 江苏一东航空机械有限公司 | A kind of new energy electric automobile motor rotor punching |
| CN110212666A (en) * | 2019-05-16 | 2019-09-06 | 广州小鹏汽车科技有限公司 | Rotor punching structure, stator punching and electric machine structure |
| CN210431059U (en) * | 2019-10-14 | 2020-04-28 | 淄博威恩动力科技有限公司 | Stator and rotor core punching sheet of permanent magnet motor |
-
2020
- 2020-09-24 CN CN202011018359.3A patent/CN112234732A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105186818A (en) * | 2015-09-14 | 2015-12-23 | 常州市普世汽车电动系统有限公司 | Permanent magnet synchronous motor with hybrid magnetic circuit arrangement |
| CN206412854U (en) * | 2017-01-05 | 2017-08-15 | 安徽东道新能源科技有限公司 | A kind of permanent-magnetic synchronous motor rotor and punching |
| CN207819576U (en) * | 2017-10-11 | 2018-09-04 | 江苏一东航空机械有限公司 | A kind of new energy electric automobile motor rotor punching |
| CN110212666A (en) * | 2019-05-16 | 2019-09-06 | 广州小鹏汽车科技有限公司 | Rotor punching structure, stator punching and electric machine structure |
| CN210431059U (en) * | 2019-10-14 | 2020-04-28 | 淄博威恩动力科技有限公司 | Stator and rotor core punching sheet of permanent magnet motor |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112886742A (en) * | 2021-01-20 | 2021-06-01 | 浙江达可尔汽车电子科技有限公司 | Oil-cooled motor rotor |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20210115 |