CN208638113U - A kind of sectional type iron core IPM plastic packaging forming rotor - Google Patents
A kind of sectional type iron core IPM plastic packaging forming rotor Download PDFInfo
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- CN208638113U CN208638113U CN201821113765.6U CN201821113765U CN208638113U CN 208638113 U CN208638113 U CN 208638113U CN 201821113765 U CN201821113765 U CN 201821113765U CN 208638113 U CN208638113 U CN 208638113U
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Abstract
The utility model discloses a kind of sectional type iron core IPM plastic packaging forming rotors, are related to motor field.Existing IPM rotor is all the integrated punching forming rotor core design with magnetic bridge structure, and there are larger leakage fields.The utility model includes rotor core, magnetic shoe, PBT and axis, rotor core is surround by multiple identical iron core piecemeals and is formed, magnetic shoe slot and the magnetic-leakage preventing slot for reducing leakage field are equipped between every two adjacent iron core piecemeal, make mutually to separate between two adjacent iron cores piecemeals by magnetic-leakage preventing slot and magnetic shoe slot, the location structure for realizing the positioning of iron core piecemeal is equipped on each iron core piecemeal, magnetic shoe is inserted into magnetic shoe slot, magnetic shoe is fixed on rotor core by PBT, and axis is connected as an entirety by PBT and magnetic shoe and rotor core.The technical program solves the problems, such as traditional unitary rotor iron core magnetic bridge leakage field, improves the utilization rate of rotor magnetic shoe, improve the power density of motor by the way that rotor core is divided into multiple identical iron core piecemeals.
Description
Technical field
The utility model relates to motor field more particularly to a kind of novel sectional type iron core IPM plastic packaging forming rotors.
Background technique
Currently, existing IPM rotor is all the integrated punching forming rotor core design with magnetic bridge structure.It is main former
Because considering that integral type iron core is easy to assembly, and personnel's flow chart is few, and concentricity easily guarantees for productivity.But due to depositing
It is designed in magnetic bridge, inherently there is larger leakage field, to reduce the utilization rate of rotor magnetic shoe.
Utility model content
The technical problems to be solved in the utility model and the technical assignment of proposition be prior art is carried out improve with
It improves, a kind of sectional type iron core IPM plastic packaging forming rotor is provided, for the purpose of the utilization rate for improving rotor magnetic shoe.For this purpose, this reality
Following technical scheme is taken with novel.
A kind of sectional type iron core IPM plastic packaging forming rotor, including rotor core, magnetic shoe, PBT and axis, the rotor iron
Core, around forming, is equipped with magnetic shoe slot and for reducing by multiple identical iron core piecemeals between every two adjacent iron core piecemeal
The magnetic-leakage preventing slot of leakage field makes mutually to separate between two adjacent iron cores piecemeals, each iron core piecemeal by magnetic-leakage preventing slot and magnetic shoe slot
On be equipped with location structure for realizing the positioning of iron core piecemeal, the magnetic shoe is inserted into magnetic shoe slot, and the magnetic shoe is logical
It crosses the PBT to be fixed on rotor core, the axis is connected as by the PBT and the magnetic shoe and rotor core
One entirety.By the way that rotor core is divided into multiple identical iron core piecemeals, then magnetic shoe is set between adjacent iron core piecemeal
Slot and magnetic-leakage preventing slot for reducing leakage field, and entirety is linked to be by PBT, it ensure that the concentricity of rotor, and solve tradition
Unitary rotor iron core magnetic bridge leakage field problem, improve the utilization rate of rotor magnetic shoe, improve the power density of motor.
As further improving and supplementing to above-mentioned technical proposal, the utility model further includes that following supplementary technology is special
Sign.
The location structure includes locating slot and location hole, and locating slot and location hole are uniformly distributed around axis, and locating slot is located at iron
In core piecemeal inside circumference.It is fixed convenient for technique of the iron core piecemeal when being linked to be entirety by PBT by locating slot and location hole
Position guarantees its radial fixation with circumferential locations.
The iron core piecemeal is equipped with rotor reinforced hole, and rotor reinforced hole is uniformly distributed around axis, the PBT injection molding note
Enter rotor reinforced hole.The binding force of PBT Yu iron core piecemeal are increased, the stronger stabilization of rotor is made.
The magnetic-leakage preventing slot includes being set to the outer magnet isolation tank on the outside of magnetic shoe slot and the interior magnet isolation tank on the inside of magnetic shoe slot,
Outer magnet isolation tank and interior magnet isolation tank are uniformly distributed around axis.Air gap leakage field is reduced by inside and outside magnet isolation tank, is realized the effect for reducing leakage field, is mentioned
High rotor magnetic shoe utilization rate, to improve power of motor density.
Locating slot, location hole and the rotor reinforced hole is respectively positioned on the radial center line position of iron core piecemeal, and is pressed
It is sequentially distributed from inside to outside.It is reasonably distributed, can make full use of the space of iron core piecemeal, especially can be enhanced to rotor reinforced hole
Shape size carry out reasonably optimizing, so that rotor is obtained higher structural stability, it is stronger.
The axis is an entirety by the PBT and iron core piecemeal and magnetic shoe injection molding.Injection molding one,
Pressure is big, is tightly combined, and intensity is big, and dimensionally stable is good, and precision is high, and production and processing is convenient.
The locating slot is semicircle, and location hole is circle.Location structure is simple, keeps the positioning mechanism of mold relatively simple
It is single, manufacture easy to process.
The rotor reinforced hole is pyriform hole, slotted eye or polygonal hole, the length direction and diameter of rotor reinforced hole
To consistent.Lateral area is larger, and the combination of PBT is stronger, keeps rotor more stable and reliable.
The outer magnet isolation tank and interior magnet isolation tank are polygon groove.Polygon groove can be rectangular channel, dovetail groove or other
Irregular slot etc., rectangular groove structure is simple, easy to process.Certainly inside and outside magnet isolation tank is not necessarily intended to rectangular channel, processing upper core punching
Piece punch forming is easier to realize.Notch will have certain distance that can not only guarantee magnetism isolating effect, but also can play magnetic shoe
The effect of positioning and centrifugation fixation.
PBT on the inside of the rotor core is equipped with the through-hole uniformly distributed around axis.The use that PBT material can be reduced, has
Effect reduces the weight of rotor.
The utility model has the advantages that
1, it solves the problems, such as the magnetic bridge leakage field of unitary rotor iron core, improves the utilization rate of rotor magnetic shoe, improve
The power density of motor.
2, by locating slot and location hole, it is fixed technique of the iron core piecemeal when being linked to be entirety by PBT has been conveniently realized
Position guarantees its radial fixation with circumferential locations.
3, rotor reinforced hole is injected by PBT injection molding, increases the binding force of PBT Yu iron core piecemeal, makes rotor more
Firm stable.
4, the reasonable layout of locating slot, location hole and rotor reinforced hole, can make full use of the space of iron core piecemeal, especially
It can be enhanced and reasonably optimizing is carried out to the shape size of rotor reinforced hole, rotor is made to obtain higher structural stability, it is more firm
Gu.
5, one is formed by injection molding manner, pressure is big, is tightly combined, and intensity is big, and dimensionally stable is good, and precision is high, production
It is easy to process.
6, location structure is simple, keeps the positioning mechanism of mold relatively easy, manufacture easy to process.
7, the rotor reinforced hole of pyriform hole, slotted eye or polygonal hole, lateral area is larger, and the combination of PBT is more firm
Gu keeping rotor more stable and reliable.
8, outer magnet isolation tank and interior magnet isolation tank are rectangular channel, and structure is simple, easy to process.
9, the upper through-hole uniformly distributed around axis of PBT, it is possible to reduce the weight of rotor is effectively reduced in the use of PBT material.
Detailed description of the invention
Fig. 1 is the utility model structure diagram.
Fig. 2 is the utility model cross-sectional cut-away schematic diagram.
In figure: 1- rotor core；2- magnetic shoe；3- PBT；4- axis；101- magnetic shoe slot；102- locating slot；103- location hole；
104- rotor reinforced hole；The outer magnet isolation tank of 105-；Magnet isolation tank in 106-；107- iron core piecemeal；301- through-hole.
Specific embodiment
The technical solution of the utility model is described in further detail below in conjunction with Figure of description.
As shown in Figs. 1-2, a kind of sectional type iron core IPM plastic packaging forming rotor, including rotor core 1, magnetic shoe 2, PBT3 and
Axis 4, rotor core 1, around forming, are all provided with by multiple identical iron core piecemeals 107 between every two adjacent iron core piecemeal 107
There are magnetic shoe slot 101 and the magnetic-leakage preventing slot for reducing leakage field, two adjacent iron cores piecemeals are made by magnetic-leakage preventing slot and magnetic shoe slot 101
It is mutually separated between 107, the location structure positioned for realizing iron core piecemeal 107, magnetic shoe 2 is equipped on each iron core piecemeal 107
It is inserted into magnetic shoe slot 101, magnetic shoe 2 is fixed on rotor core 1 by PBT3, and axis 4 passes through PBT3 and magnetic shoe 2 and rotor core
1 is connected as an entirety.
In order to realize locating, location structure includes locating slot 102 and location hole 103, locating slot 102 and location hole
103 is uniformly distributed around axis 4, and locating slot 102 is located in 107 inside circumference of iron core piecemeal.By locating slot 102 and location hole 103, it is convenient for
Locating of the iron core piecemeal 107 when being linked to be entirety by PBT3 guarantees its radial fixation with circumferential locations.
Stronger in order to combine PBT3 with iron core piecemeal 107, iron core piecemeal 107 is equipped with rotor reinforced hole 104, turns
Sub- reinforced hole 104 is uniformly distributed around axis 4, and rotor reinforced hole 104 is injected in PBT3 injection molding.Increase PBT3 and iron core piecemeal 107
Binding force makes the stronger stabilization of rotor.
In order to reduce leakage field, magnetic-leakage preventing slot includes set on the outer magnet isolation tank 105 in 101 outside of magnetic shoe slot and set on magnetic shoe slot
The interior magnet isolation tank 106 of 101 insides, outer magnet isolation tank 105 and interior magnet isolation tank 106 are uniformly distributed around axis.Gas is reduced by inside and outside magnet isolation tank
Gap leakage field realizes the effect for reducing leakage field, 2 utilization rate of rotor magnetic shoe is improved, to improve power of motor density.Magnetic shoe slot
There is certain distance at 101 tool edges, and notch has certain distance that can not only guarantee magnetism isolating effect, but also can play magnetic shoe positioning and centrifugation
Fixed effect.
For Optimum distribution structure, locating slot 102, location hole 103 and rotor reinforced hole 104 are respectively positioned on iron core piecemeal 107
Radial center line position on, and by being sequentially distributed from inside to outside.It is reasonably distributed, can make full use of the sky of iron core piecemeal 107
Between, it especially can be enhanced and reasonably optimizing carried out to the shape size of rotor reinforced hole 104, rotor is made to obtain higher stable structure
Property, it is stronger.
In order to promote the quality of production, axis 4 is an entirety by PBT3 and iron core piecemeal 107 and 2 injection molding of magnetic shoe.
Injection molding one, pressure is big, is tightly combined, and intensity is big, and dimensionally stable is good, and precision is high, and production and processing is convenient.
In order to simplify location structure, locating slot 102 is semicircle, and location hole 103 is circle.Location structure is simple, makes mould
The positioning mechanism of tool is relatively easy, manufacture easy to process.
In order to keep rotor stronger, rotor reinforced hole 104 is pyriform hole, the length direction and diameter of rotor reinforced hole 104
To consistent.Lateral area is larger, and the combination of PBT3 is stronger, keeps rotor more stable and reliable.
For the ease of processing, outer magnet isolation tank 105 and interior magnet isolation tank 106 are rectangular channel.Rectangular groove structure is simple, processing side
Just.
In order to reduce weight, the PBT3 of 1 inside of rotor core is equipped with the through-hole 301 uniformly distributed around axis 4.PBT3 can be reduced
The weight of rotor is effectively reduced in the use of material.
When production, first each iron core piecemeal 107 is mounted on mold, it is fixed by locating slot 102 and location hole 103
Position, then magnetic shoe 2 is embedded in magnetic shoe slot 101, using PBT3 injection molding one after molding.
In this example, iron core piecemeal 107 totally 10, through-hole 301 totally 10.
A kind of sectional type iron core IPM plastic packaging forming rotor shown in figure 1 above -2 is specific embodiment of the utility model,
The utility model in essence feature and progress have been embodied, needs can have been used according to actual, in the enlightenment of the utility model
Under, the equivalent modifications of shape, structure etc., the column in the protection scope of this programme are carried out to it.
Claims (10)
1. a kind of sectional type iron core IPM plastic packaging forming rotor, including rotor core (1), magnetic shoe (2), PBT(3) and axis (4),
Be characterized in that: the rotor core (1) is surround by multiple identical iron core piecemeals (107) and is formed, every two adjacent iron core
It is equipped with magnetic shoe slot (101) and the magnetic-leakage preventing slot for reducing leakage field between piecemeal (107), passes through magnetic-leakage preventing slot and magnetic shoe slot
(101) make mutually to separate between two adjacent iron cores piecemeals (107), be equipped on each iron core piecemeal (107) for realizing iron core
The location structure of piecemeal (107) positioning, the magnetic shoe (2) are inserted into magnetic shoe slot (101), and the magnetic shoe (2) passes through institute
The PBT(3 stated) it is fixed on rotor core (1), the axis (4) is by the PBT(3) and the magnetic shoe (2) and turns
Sub- iron core (1) is connected as an entirety.
2. a kind of sectional type iron core IPM plastic packaging forming rotor according to claim 1, it is characterised in that: the positioning
Structure includes locating slot (102) and location hole (103), and locating slot (102) and location hole (103) are uniformly distributed around axis (4), locating slot
(102) it is located in iron core piecemeal (107) inside circumference.
3. a kind of sectional type iron core IPM plastic packaging forming rotor according to claim 2, it is characterised in that: the iron core
Piecemeal (107) is equipped with rotor reinforced hole (104), and rotor reinforced hole (104) is uniformly distributed around axis (4), the PBT(3) it is molded into
Type injects rotor reinforced hole (104).
4. a kind of sectional type iron core IPM plastic packaging forming rotor according to claim 1, it is characterised in that: the leakproof
Magnetic slot includes the outer magnet isolation tank (105) on the outside of magnetic shoe slot (101) and the interior magnet isolation tank on the inside of magnetic shoe slot (101)
(106), outer magnet isolation tank (105) and interior magnet isolation tank (106) are uniformly distributed around axis.
5. a kind of sectional type iron core IPM plastic packaging forming rotor according to claim 3, it is characterised in that: the positioning
Slot (102), location hole (103) and rotor reinforced hole (104) are respectively positioned on the radial center line position of iron core piecemeal (107), and
By being sequentially distributed from inside to outside.
6. a kind of sectional type iron core IPM plastic packaging forming rotor according to claim 1, it is characterised in that: the axis (4)
Pass through the PBT(3) it with iron core piecemeal (107) and magnetic shoe (2) injection molding is an entirety.
7. a kind of sectional type iron core IPM plastic packaging forming rotor according to claim 2, it is characterised in that: the positioning
Slot (102) is semicircle, and location hole (103) is circle.
8. a kind of sectional type iron core IPM plastic packaging forming rotor according to claim 3, it is characterised in that: the rotor
Reinforced hole (104) be pyriform hole, slotted eye or polygonal hole, the length direction of rotor reinforced hole (104) with it is radially consistent.
9. a kind of sectional type iron core IPM plastic packaging forming rotor according to claim 4, it is characterised in that: it is described it is outer every
Magnetic slot (105) and interior magnet isolation tank (106) are polygon groove.
10. a kind of sectional type iron core IPM plastic packaging forming rotor according to claim 1, it is characterised in that: the rotor
PBT(3 on the inside of iron core (1)) it is equipped with the through-hole (301) uniformly distributed around axis (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821113765.6U CN208638113U (en) | 2018-07-13 | 2018-07-13 | A kind of sectional type iron core IPM plastic packaging forming rotor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821113765.6U CN208638113U (en) | 2018-07-13 | 2018-07-13 | A kind of sectional type iron core IPM plastic packaging forming rotor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208638113U true CN208638113U (en) | 2019-03-22 |
Family
ID=65737686
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821113765.6U Active CN208638113U (en) | 2018-07-13 | 2018-07-13 | A kind of sectional type iron core IPM plastic packaging forming rotor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208638113U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108711980A (en) * | 2018-07-13 | 2018-10-26 | 卧龙电气集团股份有限公司 | A kind of sectional type iron core IPM plastic packaging forming rotors |
| CN111969747A (en) * | 2020-09-28 | 2020-11-20 | 珠海格力电器股份有限公司 | Rotor structure and motor with same |
-
2018
- 2018-07-13 CN CN201821113765.6U patent/CN208638113U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108711980A (en) * | 2018-07-13 | 2018-10-26 | 卧龙电气集团股份有限公司 | A kind of sectional type iron core IPM plastic packaging forming rotors |
| CN108711980B (en) * | 2018-07-13 | 2023-12-05 | 卧龙电气集团股份有限公司 | Block type iron core IPM plastic package forming rotor |
| CN111969747A (en) * | 2020-09-28 | 2020-11-20 | 珠海格力电器股份有限公司 | Rotor structure and motor with same |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
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| CP01 | Change in the name or title of a patent holder |
Address after: 312300 economic development zone, Shangyu District, Zhejiang, Shaoxing Patentee after: WOLONG ELECTRIC GROUP Co.,Ltd. Address before: 312300 economic development zone, Shangyu District, Zhejiang, Shaoxing Patentee before: WOLONG ELECTRIC GROUP Co.,Ltd. |