CN101807824B - Alternating current motor and manufacturing method thereof - Google Patents
Alternating current motor and manufacturing method thereof Download PDFInfo
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- CN101807824B CN101807824B CN2010101023943A CN201010102394A CN101807824B CN 101807824 B CN101807824 B CN 101807824B CN 2010101023943 A CN2010101023943 A CN 2010101023943A CN 201010102394 A CN201010102394 A CN 201010102394A CN 101807824 B CN101807824 B CN 101807824B
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Abstract
The invention relates to an alternating current motor and a manufacturing method thereof, belonging to the technical field of electric motors. The alternating current motor comprises a stator, a rotor and a frame, wherein a stator core of the stator comprises a core yoke part and a core tooth part; the inner side of the annular surface of the core yoke part is provided with a nested rabbet, and the outer side of the annular surface of core tooth part is provided with an outward nested boss; and the core tooth part and the core yoke part form a nested fixed connection by embedding the nested boss in the nested rabbet. The invention realizes that the electric motor can achieve a higher flux density without generating the flux density supersaturation at the stator tooth part, and has the obvious advantages of simple and compact structure and lower cost.
Description
Technical field
The present invention relates to a kind of alternating current motor and manufacturing approach thereof, specifically relate to the alternating current motor of high power density, belong to the motor technology field.
Background technology
For common alternating current motor, particularly large-scale alternating current motor in order to reduce the motor volume, improves power density, chooses higher magnetic flux density usually, thereby causes the saturated of motor stator tooth portion magnetic flux density.The magnetic flux density of supersaturation will inevitably cause air-gap field wave distortion and higher stator core loss, has limited the raising of motor overall performance thus.
Summary of the invention
The objective of the invention is to, overcome the deficiency of above-mentioned prior art, a kind of alternating current motor of new structure is provided, it is close during greater than 1.8T and can not produce the problem of stator teeth magnetic flux density supersaturation to have solved motor magnetic.Manufacturing approach can guarantee the fine realization of AC motor structure technical scheme.
A kind of alternating current motor technical scheme of the present invention is:
A kind of alternating current motor, it comprises stator, rotor and support; It is characterized in that the stator core of described stator is made up of rear of core and core tooth part two parts; There is nested notch the inboard of rear of core ring surface, and nested boss is arranged outside the lateral of core tooth part ring surface; Core tooth part embeds nested notch nesting formula with rear of core through nested boss and is fixedly connected.
The technical scheme further that on the technique scheme basis, has additional technical feature is:
Described alternating current motor, the nested cooperation place of its nested boss and nested notch be shaped as dove tail shape, or rectangle, or circular.
Described alternating current motor, its nested notch is uniformly distributed with along the rear of core inner periphery; Nested boss is uniformly distributed with along the core tooth part excircle; Nested notch has 3 at least respectively with nested boss.
Described alternating current motor, its nested notch has 4 respectively with nested boss.
Described alternating current motor, its stator core two ends are fixedly connected with stretching screw with end clamp plate.
Described alternating current motor, its rear of core are conventional magnetic conduction silicon steel sheet, and core tooth part is the ferromagnetic material of high magnetic property.
Described alternating current motor, the conventional magnetic conduction silicon steel material of its rear of core is selected from common cold-reduced silicon sheet WW270 or WW470; The ferromagnetic material of the high magnetic property of core tooth part is selected from high performance alloy magnetic material 1J22 or G1J21.
A kind of alternating current motor manufacturing approach technical scheme of the present invention is:
A kind of manufacturing approach of alternating current motor, alternating current motor comprise stator, rotor and support; The stator core of described stator is made up of rear of core and core tooth part two parts; There is nested notch the inboard of rear of core ring surface, and nested boss is arranged outside the lateral of core tooth part ring surface; Core tooth part embeds nested notch nesting formula with rear of core through nested boss and is fixedly connected; The manufacturing step of stator core is: at first with the full circle punching out respectively of rear of core and core tooth part, or the punching out of distinguish form, then the rear of core punching is laminated fixingly, the core tooth part punching is laminated in the rear of core that into has been shaped again.
The technical scheme further that on the technique scheme basis, has additional technical feature is:
The manufacturing approach of described alternating current motor, its distinguish punching out be with core tooth part together with nested boss, and rear of core be evenly distributed in each distinguish punching together with nested notch and carry out punching out.
Alternating current motor obvious technical effects of the present invention:
1, solved the particularly large-scale alternating current motor compact design of alternating current motor and choose the main difficult problem that high magnetic flux density faces; And kept the original permeability magnetic material of stator core yoke portion, reduced cost, had excellent economy.
2, have advantages such as simple in structure, compactness.
Description of drawings
Fig. 1 is a kind of AC motor structure sketch map of the present invention;
Fig. 2 is a stator structure sketch map of the present invention;
Fig. 3 is a stator core schematic three dimensional views of the present invention;
Fig. 4 is shaped as dove tail shape connected mode sketch map for the nested cooperation place of the nested boss 10 of stator core of the present invention and nested notch 8;
Fig. 5 is the circular connected mode sketch map that is shaped as of the nested cooperation place of the nested boss 10 of stator core of the present invention and nested notch 8;
Fig. 6 is shaped as rectangle connected mode sketch map for the nested cooperation place of the nested boss 10 of stator core of the present invention and nested notch 8;
Fig. 7 is stator core rectangle connected mode yoke of the present invention portion full circle punching sketch map;
Fig. 8 is stator core rectangle connected mode tooth of the present invention portion full circle punching sketch map;
Fig. 9 is a stator core rectangle connected mode yoke part lobe punching sketch map of the present invention;
Figure 10 is a stator core rectangle connected mode toothed portion lobe punching sketch map of the present invention.
The pairing name of each mark is called among the figure: the 1-rotor; The 2-stator; The 3-support; The 4-stator coil; The 5-end clamp plate; The 6-stator core; The 7-rear of core; The nested notch of 8-; 9-stator core tooth portion; The nested boss of 10-; The 11-stretching screw.
Embodiment
In conjunction with accompanying drawing and embodiment the present invention is described further as follows:
Shown in Fig. 1-6, a kind of alternating current motor, it has a stator 2, rotor 1 and support 3; The stator core 6 of described stator 2 is made up of rear of core 7 and core tooth part 9 two parts; There is nested notch 8 inboard of rear of core 7 ring surfaces, and nested boss 10 is arranged outside the lateral of core tooth part 9 ring surfaces; Core tooth part 9 embeds nested notch 8 nesting formulas with rear of core 7 through nested boss 10 and is fixedly connected.Nested boss 10 is illustrated in figure 4 as dove tail shape with the shape of the nested cooperation place of nested notch 8, also can be rectangle as shown in Figure 6, or circle as shown in Figure 5.Nested notch 8 is uniformly distributed with along rear of core 7 inner peripherys; Nested boss 10 is uniformly distributed with along core tooth part 9 excircles; Nested notch 8 has 3 at least respectively with nested boss 10, and present embodiment nested notch 8 shown in Fig. 4-10 has 4 respectively with nested boss 10.Described stator core 6 two ends are fixedly connected with stretching screw 11 with end clamp plate 5.Rear of core 7 is conventional magnetic conduction silicon steel sheet, and the conventional magnetic conduction silicon steel material of present embodiment is selected from common cold-reduced silicon sheet WW270, also can select WW470; Core tooth part 9 is the ferromagnetic material of high magnetic property, and the ferromagnetic material of the high magnetic property of present embodiment is selected from high performance alloy magnetic material 1J22, also can select G1J21.
A kind of alternating current motor manufacturing approach of the present invention, electric machine structure is the foregoing description structure.The manufacturing step of stator core is: at first with rear of core 7 and core tooth part 9 full circle punching out respectively, or the punching out of distinguish form, then rear of core 7 punchings are laminated fixingly, core tooth part 9 punchings are laminated in the rear of core 7 that into has been shaped again.Said distinguish punching out be with core tooth part 9 together with nested boss 10, and rear of core 7 be evenly distributed in each distinguish punching together with nested notch 8 and carry out punching out.
Claims (7)
1. alternating current motor, it comprises stator (2), rotor (1) and support (3); It is characterized in that the stator core (6) of described stator (2) is made up of rear of core (7) and core tooth part (9) two parts; There is nested notch (8) inboard of rear of core (7) ring surface, outside the lateral of core tooth part (9) ring surface nested boss (10) is arranged; Core tooth part (9) embeds nested notch (8) nesting formula with rear of core (7) through nested boss (10) and is fixedly connected; Described rear of core (7) is conventional magnetic conduction silicon steel sheet, and core tooth part (9) is the ferromagnetic material of high magnetic property; Rear of core (7) and core tooth part (9) be the full circle punching out respectively, or the punching out of distinguish form is shaped; Rear of core (7) punching laminates fixing, and core tooth part (9) punching laminates in the rear of core (7) that into has been shaped.
2. alternating current motor according to claim 1 is characterized in that, the nested cooperation place of described nested boss (10) and nested notch (8) be shaped as dove tail shape, or rectangle, or circular.
3. alternating current motor according to claim 1 is characterized in that, described nested notch (8) is uniformly distributed with along rear of core (7) inner periphery; Nested boss (10) is uniformly distributed with along core tooth part (9) excircle; Nested notch (8) has 3 at least respectively with nested boss (10).
4. alternating current motor according to claim 3 is characterized in that, described nested notch (8) has 4 respectively with nested boss (10).
5. alternating current motor according to claim 1 is characterized in that, described stator core (6) two ends are fixedly connected with stretching screw (11) with end clamp plate (5).
6. alternating current motor according to claim 5 is characterized in that, the conventional magnetic conduction silicon steel material of described rear of core (7) is selected from common cold-reduced silicon sheet WW270 or WW470; The ferromagnetic material of the high magnetic property of core tooth part (9) is selected from high performance alloy magnetic material 1J22 or G1J21.
7. the manufacturing approach of an alternating current motor is characterized in that, alternating current motor comprises stator (2), rotor (1) and support (3); The stator core (6) of described stator (2) is made up of rear of core (7) and core tooth part (9) two parts; There is nested notch (8) inboard of rear of core (7) ring surface, outside the lateral of core tooth part (9) ring surface nested boss (10) is arranged; Core tooth part (9) embeds nested notch (8) nesting formula with rear of core (7) through nested boss (10) and is fixedly connected; The manufacturing step of stator core is: at first with the full circle punching out respectively of rear of core (7) and core tooth part (9), or the punching out of distinguish form, then rear of core (7) punching is laminated fixingly, core tooth part (9) punching is laminated in the rear of core (7) that into has been shaped again; Described distinguish punching out be with core tooth part (9) together with nested boss (10), and rear of core (7) be evenly distributed in each distinguish punching together with nested notch (8) and carry out punching out.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101023943A CN101807824B (en) | 2010-01-26 | 2010-01-26 | Alternating current motor and manufacturing method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101023943A CN101807824B (en) | 2010-01-26 | 2010-01-26 | Alternating current motor and manufacturing method thereof |
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| Publication Number | Publication Date |
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| CN101807824A CN101807824A (en) | 2010-08-18 |
| CN101807824B true CN101807824B (en) | 2012-02-08 |
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| CN112953048A (en) * | 2021-02-18 | 2021-06-11 | 武汉船用电力推进装置研究所（中国船舶重工集团公司第七一二研究所） | Stator structure for weakening electromagnetic excitation force of motor |
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Application publication date: 20100818 Assignee: Qingdao Haixi Electric Machine Co., Ltd. Assignor: No.712 Inst., China Ship Heavy Industry Group Co. Contract record no.: 2014370000113 Denomination of invention: Alternating current motor and manufacturing method thereof Granted publication date: 20120208 License type: Exclusive License Record date: 20140624 |
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Effective date of registration: 20151013 Address after: 430064, Wuhan City, Hubei province Hongshan District Lion Hill Street South Lake (steam School Village) Patentee after: Wuhan Changhai electric propulsion and chemical power supply Co., Ltd. Address before: 430064 Hubei City, Hongshan District, lion street, steam school, a village Patentee before: No.712 Inst., China Ship Heavy Industry Group Co. |