CN209299013U - A kind of high speed permanent magnet motor rotor punching - Google Patents
A kind of high speed permanent magnet motor rotor punching Download PDFInfo
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- CN209299013U CN209299013U CN201920163704.9U CN201920163704U CN209299013U CN 209299013 U CN209299013 U CN 209299013U CN 201920163704 U CN201920163704 U CN 201920163704U CN 209299013 U CN209299013 U CN 209299013U
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Abstract
The utility model discloses a kind of high speed permanent magnet motor rotor punchings, punching ontology including circular ring shape, punching ontology is equipped with the second magnetic slot of the first magnetic slot of a circle outer layer and a circle internal layer of equivalent, and first magnetic slot and the equal V-shape of the second magnetic slot are distributed in pairs；Two pairs of the second magnetic slot centerlines are equipped with rectangle empty slot, the first lightening hole are equipped between rectangle empty slot and punching ontology inner ring, the first lightening hole two sides are respectively equipped with the second lightening hole.The first magnetic bridge is formed between first magnetic slot and punching outer circle, second magnetic slot and punching outer circle form the second magnetic bridge.Third magnetic bridge is formed between the bottom of the first pairs of magnetic slot, the bottom of the second pairs of magnetic slot is equipped with air groove, forms the 4th magnetic bridge between air groove and rectangle empty slot side.The contradictory problems of the performance of the intensity and high power density of rotor punching when high speed permanent magnet motor rotor punching provided by the utility model, the punching can effectively improve high speed operation of motor.
Description
Technical field
The utility model relates to magneto, in particular to a kind of high speed permanent magnet motor rotor punching.
Background technique
New energy automobile motor just gradually tends to high power density, high speed at present.Intensity of the high speed to rotor
It puts forward higher requirements, the method key of traditional raising rotor strength is to increase the width of punching magnetic bridge, the width of magnetic bridge
Bigger, punching intensity is better, but big width magnetic bridge certainly will reduce the performance of motor, it is difficult to reach high power density；Therefore Gao Gong
Rate density and high revolving speed can be considered two conflicting requirements, and existing design method is difficult to meet simultaneously.
Fig. 1 is the cross-sectional view of the V-arrangement magnet steel arrangement of conventional high rate punching, is arranged for V-arrangement magnet steel, in magnet steel V-arrangement
Magnetic bridge is designed in central axes, and fillet is arranged at the angle V, and the two, which combines, to be achieved the purpose that improve intensity, magnetic bridge is wider, fillet more
Greatly, punching intensity is higher；The method has distinct disadvantage: since the V-arrangement of magnet steel is arranged, the fillet at the angle V is difficult to design very
Greatly, and fillet reduces the length of magnetic bridge, and the leakage field of magnet steel increases, and fillet is bigger, and magnet steel leakage field is more serious；This method design
Motor be difficult to have both the performance requirement of high revolving speed, high power density.
Utility model content
The utility model aim is: a kind of high speed permanent magnet motor rotor punching is provided, while realizing punching high intensity,
It ensure that the high power density of motor.
The technical solution of the utility model is:
A kind of high speed permanent magnet motor rotor punching, the punching ontology including circular ring shape, punching ontology are equipped with a circle outer layer
The first magnetic slot and equivalent a circle internal layer the second magnetic slot, first magnetic slot and the equal V-shape of the second magnetic slot at
To distribution；Two pairs of the second magnetic slot centerlines are equipped with rectangle empty slot, set between rectangle empty slot and punching ontology inner ring
There is the first lightening hole, the first lightening hole two sides are respectively equipped with the second lightening hole.
Preferably, first magnetic slot and the second magnetic slot are symmetrical along the radial direction of punching, pairs of
The V-arrangement angle of first magnetic slot is 125 °~135 °, and the V-arrangement angle of the second pairs of magnetic slot is 105 °~115 °, two layers of magnetic
One magnetic pole of steel construction composition punching.
Preferably, form the first magnetic bridge between first magnetic slot and punching outer circle, second magnetic slot with
Punching outer circle forms the second magnetic bridge.
Preferably, inside and outside two sides of the rectangle empty slot are vertical with pole center line, two sides and pole center
Line is parallel, and four angles design of rectangle has fillet.
Preferably, third magnetic bridge, the bottom of the second pairs of magnetic slot are formed between the bottom of the first pairs of magnetic slot
Equipped with air groove, the 4th magnetic bridge is formed between air groove and rectangle empty slot side.
Preferably, two sides in the outside of first lightening hole are parallel with the second close magnetic slot, the two
Between form magnetic circuit part.
Preferably, the first supporting rib is formed between first lightening hole and the second lightening hole.
Preferably, the bottom shape of second lightening hole be using punching central point as one section of circular arc in the center of circle, with
The second supporting rib is formed between punching inner circle.
Preferably, fillet is designed between first lightening hole and the sideline of the second lightening hole.
Preferably, the air groove of the second layer magnet steel trench bottom includes first side, second side and respectively with two
The tangent fillet in a side, first side be the second magnetic slot inner side edge straight line extended line a part, second side with
The outer side edges of second magnetic slot are at obtuse angle.
The utility model has the advantages that:
When high speed permanent magnet motor rotor punching provided by the utility model, the punching can effectively improve high speed operation of motor
The contradictory problems of the performance of the intensity and high power density of rotor punching, major advantage are:
1, the Rouno Cormer Pregrinding Wheel of second layer magnet steel bottom increases the intensity of punching, and magnetic bridge length does not reduce, motor
Leakage field does not increase；
2, the V angle of Double-layer V-shaped magnetic pole, two layers of magnetic pole of adjustment can effectively promote the convex grey subset of punching；
3, the rectangle empty slot at second layer pole center line increases the convex grey subset of punching, improves output power of motor,
Rectangle empty slot also mitigates punching weight, the promotion of power and the effective hoisting power density of the mitigation of weight simultaneously；
4, the design of two layers of lightening hole alleviates punching weight, further hoisting power density.
Detailed description of the invention
The utility model is further described with reference to the accompanying drawings and embodiments:
Fig. 1 is the cross-sectional view of conventional high rate punching；
Fig. 2 is rotor punching cross-sectional view of the present invention；
Fig. 3 is second layer V-arrangement magnet steel bottom air slot fillet schematic diagram of the present invention.
Wherein, 1 is the first magnetic bridge, and 2 be the second magnetic bridge, and 3 be third magnetic bridge, and 4 be first layer magnetic slot, and 5 be second layer magnetic
Steel tank, 6 be the 4th magnetic bridge, and 7 be rectangle empty slot, and 8 be air groove, and 9 be the first lightening hole, and 10 be the second lightening hole, and 11 be magnetic circuit
Part, 12 be the first supporting rib, and 13 be the second supporting rib, and 81 be air groove first side, and 82 be air groove second side, and 83 are
Air groove fillet.
Specific embodiment
If Fig. 2 shows, a kind of high speed permanent magnet motor rotor punching of the utility model, the punching ontology including circular ring shape, punching
Ontology is equipped with the second magnetic slot 5 of the first magnetic slot 4 of a circle outer layer and a circle internal layer of equivalent, first magnetic slot 4
It is distributed in pairs with the equal V-shape of the second magnetic slot 5；Two pairs of 5 centerlines of the second magnetic slot are equipped with rectangle empty slot 7, rectangle
The first lightening hole 9 is equipped between empty slot 7 and punching ontology inner ring, 9 two sides of the first lightening hole are respectively equipped with the second lightening hole 10.
The outer diameter of the punching ontology is between 140mm~150mm, and internal diameter is between 55mm~65mm.
First magnetic slot 4 and the second magnetic slot 5 is symmetrical along the radial direction of punching, the first pairs of magnetic
The V-arrangement angle of steel tank 4 is 125 °~135 °, and the V-arrangement angle of the second pairs of magnetic slot 5 is 105 °~115 °, two layers of magnet steel knot
One magnetic pole of structure composition punching.
Form the first magnetic bridge 1 between first magnetic slot 4 and punching outer circle, width 1mm~1.2mm, described
Two magnetic slots 5 form the second magnetic bridge 2,1.2~1.5mm of width with punching outer circle.
Inside and outside two sides of the rectangle empty slot 7 are vertical with pole center line, length 7mm~8mm, two sides and magnetic
Four angles design of pole centerline parallel, length 7mm~8mm, rectangle has fillet, radius of corner 1.8mm~2.1mm.
Third magnetic bridge 3 is formed between the bottom of the first pairs of magnetic slot, the bottom of the second magnetic slot 5 is equipped with air groove 8,
The 4th magnetic bridge 6 is formed between 7 side of air groove 8 and rectangle empty slot, the width of the 4th magnetic bridge 6 is 1mm~1.2mm.
Two sides in the outside of first lightening hole 9 are parallel with the second close magnetic slot 5, between the two shape
At magnetic circuit part 11, width is 1mm~1.2mm.
Form the first supporting rib 12 between first lightening hole 9 and the second lightening hole 10, width be 1.8mm~
2.2mm。
The bottom shape of second lightening hole 10 is using punching central point as in one section of circular arc, with punching in the center of circle
The second supporting rib 13 is formed between circle, width is 3.2mm~3.8mm.
It is designed with fillet between the sideline of first lightening hole 9 and the second lightening hole 10, radius of corner 1mm is extremely
3mm。
As shown in figure 3, the air groove 8 of 5 bottom of second layer magnetic slot includes first side 81,82 and of second side
The fillet 83 tangent with two sides respectively, first side 81 are one of the straight line extended line of the inner side edge of the second magnetic slot 5
Point, the outer side edges of second side 82 and the second magnetic slot 5 are at obtuse angle, 83 radius 1.8mm~2.1mm of fillet, according to fillet size
Needs, first side 81 can be to both sides 0~1.5mm of parallel offset.
The high speed permanent magnet motor rotor punching of the utility model, design principle:
1, empty slot structure, the settable Rouno Cormer Pregrinding Wheel of empty slot structure are introduced at the angle second layer V, while guaranteeing the length of magnetic bridge,
It ensure that less magnet steel leakage field while increasing intensity；
2, rectangular air slot, the sky of the air groove and V-arrangement magnet steel bottom are added at the pole center line of second layer magnet steel
Two magnetic bridges of formation of air drain, the addition of air groove is so that punching weight reduces, and the convex grey subset of motor increases, and output power increases
Add；
3, magnet steel arrangement uses Double-layer V-shaped structure, further increases motor convex grey subset, hoisting power density；
4, between magnet steel and punching inner circle, two groups of lightening holes, the outer shape of the first lightening hole and therewith phase are devised
Adjacent second layer V-type magnet steel matches, and forms the optimal channel of magnetic circuit between the two, while alleviating punching weight；Second subtracts
The inner shape of the outer shape of repeated hole and the first lightening hole cooperates, and supporting rib between the two is for guaranteeing punching intensity；Two
The design of layer lightening hole reduces the weight of punching and will not have an impact to the performance of motor to the greatest extent.
The above embodiments are only for explaining the technical ideas and features of the present invention, and its object is to allow be familiar with technique
People can understand the content of the utility model and implement accordingly, do not limit the protection scope of the present invention.It is all
According to the modification that the Spirit Essence of the utility model main technical schemes is done, should all cover in the protection scope of the utility model
Within.
Claims (10)
1. a kind of high speed permanent magnet motor rotor punching, the punching ontology including circular ring shape, punching ontology are equipped with a circle outer layer
The second magnetic slot (5) of first magnetic slot (4) and a circle internal layer of equivalent, first magnetic slot (4) and the second magnetic slot (5)
Equal V-shape is distributed in pairs；It is characterized by: two pairs of the second magnetic slot (5) centerlines are equipped with rectangle empty slot (7), square
The first lightening hole (9) are equipped between shape empty slot (7) and punching ontology inner ring, the first lightening hole (9) two sides are respectively equipped with second and subtract
Repeated hole (10).
2. high speed permanent magnet motor rotor punching according to claim 1, it is characterised in that: first magnetic slot (4)
Symmetrical along the radial direction of punching with the second magnetic slot (5), the V-arrangement angle of pairs of the first magnetic slot (4) is 125 °
~135 °, the V-arrangement angle of pairs of the second magnetic slot (5) is 105 °~115 °, and two layers of magnetic steel structure constitutes a magnetic of punching
Pole.
3. high speed permanent magnet motor rotor punching according to claim 2, it is characterised in that: first magnetic slot (4)
It is formed between punching outer circle the first magnetic bridge (1), second magnetic slot (5) and punching outer circle form the second magnetic bridge (2).
4. high speed permanent magnet motor rotor punching according to claim 3, it is characterised in that: the rectangle empty slot (7)
Inside and outside two sides are vertical with pole center line, and two sides are parallel with pole center line, and four angles design of rectangle has fillet.
5. high speed permanent magnet motor rotor punching according to claim 4, it is characterised in that: the bottom of the first pairs of magnetic slot
Third magnetic bridge (3) are formed between portion, the bottom of pairs of the second magnetic slot (5) is equipped with air groove (8), air groove (8) and rectangle
The 4th magnetic bridge (6) is formed between empty slot (7) side.
6. high speed permanent magnet motor rotor punching according to claim 5, it is characterised in that: first lightening hole (9)
Outside two sides it is parallel with close the second magnetic slot (5), between the two formed magnetic circuit part (11).
7. high speed permanent magnet motor rotor punching according to claim 6, it is characterised in that: first lightening hole (9)
The first supporting rib (12) are formed between the second lightening hole (10).
8. high speed permanent magnet motor rotor punching according to claim 7, it is characterised in that: second lightening hole (10)
Bottom shape be using punching central point as one section of circular arc in the center of circle, the second supporting rib (13) are formed between punching inner circle.
9. high speed permanent magnet motor rotor punching according to claim 8, it is characterised in that: first lightening hole (9)
And second lightening hole (10) sideline between be designed with fillet.
10. high speed permanent magnet motor rotor punching according to claim 9, it is characterised in that: second magnetic slot (5)
The air groove (8) of bottom includes first side (81), second side (82) and fillet tangent with two sides respectively, the first side
Side (81) is a part of the straight line extended line of the inner side edge of the second magnetic slot (5), second side (82) and the second magnetic slot (5)
Outer side edges at obtuse angle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920163704.9U CN209299013U (en) | 2019-01-30 | 2019-01-30 | A kind of high speed permanent magnet motor rotor punching |
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| CN201920163704.9U CN209299013U (en) | 2019-01-30 | 2019-01-30 | A kind of high speed permanent magnet motor rotor punching |
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| CN209299013U true CN209299013U (en) | 2019-08-23 |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110752685A (en) * | 2019-09-30 | 2020-02-04 | 华为技术有限公司 | Rotor iron chip, rotor iron core, rotor, permanent magnet synchronous motor and related products |
| CN111416455A (en) * | 2020-05-21 | 2020-07-14 | 上海纳铁福传动系统有限公司 | Rotor punching sheet of high-speed permanent magnet synchronous motor for vehicle and motor |
| CN111585370A (en) * | 2020-06-05 | 2020-08-25 | 智新科技股份有限公司 | Silicon steel sheet with low-stress magnetic isolation bridge, motor rotor and motor |
| CN113489183A (en) * | 2021-07-01 | 2021-10-08 | 河南通宇新源动力有限公司 | Permanent magnet motor rotor punching sheet with self-inclined poles and permanent magnet motor |
| CN113726046A (en) * | 2021-08-18 | 2021-11-30 | 珠海格力电器股份有限公司 | Rotor punching, rotor, motor and new forms of energy trolley-bus |
| CN113949184A (en) * | 2021-10-15 | 2022-01-18 | 浙江中车尚驰电气有限公司 | Rotor punching sheet, rotor and motor applying same |
| CN114400803A (en) * | 2022-02-23 | 2022-04-26 | 河南通宇新源动力有限公司 | Permanent magnet motor rotor punching sheet structure with staggered magnetic poles |
| CN114665631A (en) * | 2022-03-29 | 2022-06-24 | 重庆隆鑫新能源科技有限公司 | Brushless motor rotor and brushless motor thereof |
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2019
- 2019-01-30 CN CN201920163704.9U patent/CN209299013U/en active Active
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110752685A (en) * | 2019-09-30 | 2020-02-04 | 华为技术有限公司 | Rotor iron chip, rotor iron core, rotor, permanent magnet synchronous motor and related products |
| CN111416455A (en) * | 2020-05-21 | 2020-07-14 | 上海纳铁福传动系统有限公司 | Rotor punching sheet of high-speed permanent magnet synchronous motor for vehicle and motor |
| CN111585370A (en) * | 2020-06-05 | 2020-08-25 | 智新科技股份有限公司 | Silicon steel sheet with low-stress magnetic isolation bridge, motor rotor and motor |
| CN113489183A (en) * | 2021-07-01 | 2021-10-08 | 河南通宇新源动力有限公司 | Permanent magnet motor rotor punching sheet with self-inclined poles and permanent magnet motor |
| CN113489183B (en) * | 2021-07-01 | 2023-08-29 | 河南通宇新源动力有限公司 | Self-inclined pole permanent magnet motor rotor punching sheet and permanent magnet motor |
| CN113726046A (en) * | 2021-08-18 | 2021-11-30 | 珠海格力电器股份有限公司 | Rotor punching, rotor, motor and new forms of energy trolley-bus |
| CN113949184A (en) * | 2021-10-15 | 2022-01-18 | 浙江中车尚驰电气有限公司 | Rotor punching sheet, rotor and motor applying same |
| CN113949184B (en) * | 2021-10-15 | 2024-02-20 | 浙江中车尚驰电气有限公司 | Rotor punching sheet, rotor and motor using same |
| CN114400803A (en) * | 2022-02-23 | 2022-04-26 | 河南通宇新源动力有限公司 | Permanent magnet motor rotor punching sheet structure with staggered magnetic poles |
| CN114400803B (en) * | 2022-02-23 | 2023-08-15 | 河南通宇新源动力有限公司 | Permanent magnet motor rotor punching sheet structure with staggered magnetic poles |
| CN114665631A (en) * | 2022-03-29 | 2022-06-24 | 重庆隆鑫新能源科技有限公司 | Brushless motor rotor and brushless motor thereof |
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