CN208424156U - A kind of rotor assembly and its permanent magnet synchronous motor of application - Google Patents
A kind of rotor assembly and its permanent magnet synchronous motor of application Download PDFInfo
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- CN208424156U CN208424156U CN201820813432.8U CN201820813432U CN208424156U CN 208424156 U CN208424156 U CN 208424156U CN 201820813432 U CN201820813432 U CN 201820813432U CN 208424156 U CN208424156 U CN 208424156U
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- rotor
- shaft
- jump
- rotor assembly
- sleeve
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Abstract
The utility model discloses a kind of rotor assembly and its permanent magnet synchronous motors of application, the rotor assembly includes shaft, rotor core and rotor sleeve, rotor core is sleeved on outside rotor sleeve, through-hole is equipped in rotor sleeve, shaft is sleeved in rotor sleeve by through-hole, it is characterised in that: the outer peripheral surface of the shaft is equipped with the first jump-ring slot, and the first jump-ring slot is located at by rotor sleeve, first circlip is installed, the first circlip is against in the first end face of rotor sleeve in the first jump-ring slot.
Description
Technical field:
The utility model relates to a kind of rotor assembly and its permanent magnet synchronous motors of application.
Background technique:
The general volume of permanent magnet synchronous motor used in existing new energy commercial vehicle is larger, its structure is as follows: including
Casing, two end caps, stator assembly and rotor assembly, two end caps are mounted on casing both ends, and stator module is mounted in casing,
Rotor assembly is sleeved in stator module, and rotor assembly includes rotor core and shaft.For the weight for mitigating rotor assembly, meeting exists
Increase a rotor sleeve between rotor core and shaft, the structure of rotor assembly is as shown in Figure 1, the rotor sleeve a is set with
In rotor core c, shaft b is sleeved in rotor sleeve a, and the inner wall of rotor sleeve a is equipped with the first keyway d, the outer surface shaft b
It is equipped with the second keyway e and several positioning step f, several positioning step f are respectively used to rotor sleeve a and the axial direction of bearing is fixed
Position；First keyway d and the second keyway e are correspondingly arranged, and are embedded with connecting key g in the first keyway d and the second keyway e, and connecting key g weeks
To positioning rotor sleeve a.But the permanent magnet synchronous motor of this structure, there are problem of stress concentration for the positioning step of shaft, and fixed
Position step increases the process time of shaft, increases shaft maximum gauge, causes blank materials to increase, makes shaft
High production cost.
Summary of the invention:
The purpose of the utility model is to provide a kind of rotor assembly and its permanent magnet synchronous motors of application, can solve existing skill
The problem of shaft is at high cost in art, long processing time.
The purpose of this utility model is achieved by following technical proposals.
First purpose of the utility model is to provide a kind of rotor assembly, including shaft, rotor core and rotor sleeve,
Rotor core is sleeved on outside rotor sleeve, and through-hole is equipped in rotor sleeve, and shaft is sleeved in rotor sleeve by through-hole, special
Sign is: the outer peripheral surface of the shaft is equipped with the first jump-ring slot, and the first jump-ring slot is located at by rotor sleeve, peace in the first jump-ring slot
Equipped with the first circlip, the first circlip is against in the first end face of rotor sleeve.
The inner wall of shaft outer peripheral surface and through-hole described above is interference fitted.
The outer peripheral surface of shaft described above is additionally provided with two the second jump-ring slots, rotor sleeve be located at two the second jump-ring slots it
Between, two the second jump-ring slots respectively with the first end face of rotor sleeve and second end face at a distance, in the second jump-ring slot
Second circlip is installed.
It is equipped in shaft described above and axially penetrates through hole through both ends of the shaft.
Second purpose of the utility model is to provide a kind of permanent magnet synchronous motor, including casing, two end caps, stator packs
Part and rotor assembly, two end caps are mounted on casing both ends, and stator module is mounted in casing, and rotor assembly is sleeved on stator pack
In part, it is characterised in that: the rotor assembly is stator module described above.
End cap described above is equipped with bearing chamber, is equipped with bearing in bearing chamber, the shaft is supported on by two bearings
On two end caps, the outer peripheral surface of shaft is additionally provided with two the second jump-ring slots, is equipped with the second circlip in the second jump-ring slot, and two
Two circlips are against respectively on the inner face of two bearings.
The utility model compared with prior art, has the effect that
1) rotor assembly, the outer peripheral surface of shaft are equipped with the first jump-ring slot, are equipped with the first circlip in the first jump-ring slot,
First circlip is against in the first end face of rotor sleeve, carries out axially position to rotor sleeve by the first circlip, easy for installation,
Shaft makes the weight that shaft is easy to process, alleviates shaft, the diameter of shaft blank is smaller, reduces without processing positioning step
The cost of shaft；
2) inner wall of the shaft outer peripheral surface and through-hole be interference fitted, the circumferentially positioned convenience of shaft, reduce keyway and
Connecting key further reduced the production cost of rotor assembly；
3) outer peripheral surface of the shaft is additionally provided with two the second jump-ring slots, and the second circlip is equipped in the second jump-ring slot, the
Two circlips facilitate the positioning in rotor assembly inside motor, simple and compact for structure；
4) it is equipped in the shaft and axially penetrates through hole through both ends of the shaft, further mitigate the weight of shaft, reduced
Cost；
5) permanent magnet synchronous motor is improved by the structure to rotor assembly, is alleviated motor weight, is accelerated
The assembly efficiency of motor reduces the production cost of motor.
Detailed description of the invention:
Fig. 1 is the structural schematic diagram of the rotor assembly of permanent magnet synchronous motor in the prior art；
Fig. 2 is the structural schematic diagram for the rotor assembly that the utility model embodiment one provides；
Fig. 3 is enlarged drawing at the A of Fig. 2；
Fig. 4 is the side view for the rotor assembly that the utility model embodiment one provides；
Fig. 5 is the explosive view for the rotor assembly that the utility model embodiment one provides；
Fig. 6 is the cross-sectional view for the permanent magnet synchronous motor that the utility model embodiment two provides；
Fig. 7 is enlarged drawing at the B of Fig. 6；
Fig. 8 is the C-C cross-sectional view of Fig. 6.
Specific embodiment:
The utility model is described in further detail below by specific embodiment and in conjunction with attached drawing.
Embodiment one:
As shown in Figures 2 to 5, provided in this embodiment is a kind of rotor assembly, including shaft 1, rotor core 2 and rotor
Sleeve 3, rotor core 2 are sleeved on outside rotor sleeve 3, and through-hole 31 is equipped in rotor sleeve 3, and shaft 1 is sleeved on by through-hole 31
In rotor sleeve 3, it is characterised in that: the outer peripheral surface 11 of the shaft 1 is equipped with the first jump-ring slot 12, and the first jump-ring slot 12, which is located at, to be turned
By sub-sleeve 3, the first circlip 41 is installed in first jump-ring slot 12, the first circlip 41 is against the first end face 32 of rotor sleeve 3
On.
The inner wall of 1 outer peripheral surface 11 of shaft described above and through-hole 31 is interference fitted.
The outer peripheral surface 11 of shaft 1 described above is additionally provided with two second jump-ring slots 13a, 13b, and rotor sleeve 3 is located at two
Between second jump-ring slot 13a, 13b, two second jump-ring slots 13a, 13b respectively with the first end face 32 of rotor sleeve 3 and second
End face 33 at a distance, is equipped with second circlip 42a, 42b in second jump-ring slot 13a, 13b.
It is equipped in shaft 1 described above and axially penetrates through hole 14 through both ends of the shaft.
Embodiment two:
As shown in Figure 6 to 8, provided in this embodiment is a kind of permanent magnet synchronous motor, including 6, two end cap 7a of casing,
7b, stator module 8 and rotor assembly 9, two end caps 7a, 7b are mounted on 6 both ends of casing, and stator module 8 is mounted in casing 6,
Rotor assembly 9 is sleeved in stator module 8, it is characterised in that: the rotor assembly 9 is rotor assembly described in embodiment one.
End cap 7a, 7b described above are equipped with bearing chamber 71a, 71b, are equipped with bearing 5a, 5b, institute in bearing chamber 71a, 71b
It states shaft 1 to be supported on two end caps 7a, 7b by two bearings 5a, 5b, the outer peripheral surface 11 of shaft 1 is additionally provided with two second cards
Second circlip 42a, 42b, two second circlip 42a, 42b difference are installed in spring slot 13a, 13b, second jump-ring slot 13a, 13b
It is against on inner face 51a, 51b of two bearings 5a, 5b.In Fig. 8, the slot (figure of installation permanent magnet is provided with inside rotor core 2
In do not draw).
Above embodiments are better embodiment of the invention, and embodiments of the present invention are not limited thereto, other are any
Made changes, modifications, substitutions, combinations, simplifications without departing from the spirit and principles of the present invention are equivalent displacement side
Formula is included within the scope of the present invention.
Claims (6)
1. a kind of rotor assembly, including shaft (1), rotor core (2) and rotor sleeve (3), rotor core (2) are sleeved on rotor
Sleeve (3) outside, is equipped with through-hole (31) in rotor sleeve (3), and shaft (1) is sleeved in rotor sleeve (3) by through-hole (31),
Be characterized in that: the outer peripheral surface (11) of the shaft (1) is equipped with the first jump-ring slot (12), and the first jump-ring slot (12) is located at rotor sleeve
(3) other, it is equipped with the first circlip (41) in the first jump-ring slot (12), the first circlip (41) is against the first end of rotor sleeve (3)
On face (32).
2. a kind of rotor assembly according to claim 1, it is characterised in that: shaft (1) outer peripheral surface (11) and through-hole
(31) inner wall interference fit.
3. a kind of rotor assembly according to claim 2, it is characterised in that: the outer peripheral surface (11) of the shaft (1) is also set
There are two the second jump-ring slots (13a, 13b), rotor sleeve (3) is located between two the second jump-ring slots (13a, 13b), and two second
Jump-ring slot (13a, 13b) respectively with the first end face (32) of rotor sleeve (3) and second end face (33) at a distance, second
The second circlip (42a, 42b) is installed in jump-ring slot (13a, 13b).
4. a kind of rotor assembly according to claim 3, it is characterised in that: be equipped in the shaft (1) and run through shaft two
End axially penetrates through hole (14).
5. a kind of permanent magnet synchronous motor, including casing (6), two end caps (7a, 7b), stator module (8) and rotor assembly (9),
Two end caps (7a, 7b) are mounted on casing (6) both ends, and stator module (8) is mounted in casing (6), and rotor assembly (9) is sleeved on
In stator module (8), it is characterised in that: the rotor assembly (9) is rotor set described in any one of Claims 1-4
Part.
6. a kind of permanent magnet synchronous motor according to claim 5, it is characterised in that: the end cap (7a, 7b) is equipped with bearing
Room (71a, 71b), bearing chamber (71a, 71b) is interior to be equipped with bearing (5a, 5b), and the shaft (1) passes through two bearings (5a, 5b)
It being supported on two end caps (7a, 7b), the outer peripheral surface (11) of shaft (1) is additionally provided with two the second jump-ring slots (13a, 13b), and second
It is equipped with the second circlip (42a, 42b) in jump-ring slot (13a, 13b), two the second circlips (42a, 42b) are against two axis respectively
It holds on the inner face (51a, 51b) of (5a, 5b).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820813432.8U CN208424156U (en) | 2018-05-25 | 2018-05-25 | A kind of rotor assembly and its permanent magnet synchronous motor of application |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820813432.8U CN208424156U (en) | 2018-05-25 | 2018-05-25 | A kind of rotor assembly and its permanent magnet synchronous motor of application |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208424156U true CN208424156U (en) | 2019-01-22 |
Family
ID=65112853
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820813432.8U Active CN208424156U (en) | 2018-05-25 | 2018-05-25 | A kind of rotor assembly and its permanent magnet synchronous motor of application |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208424156U (en) |
-
2018
- 2018-05-25 CN CN201820813432.8U patent/CN208424156U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20230329 Address after: 201100 No. 322, Lane 953, Jianchuan Road, Minhang District, Shanghai Patentee after: SHANGHAI EDRIVE Co.,Ltd. Address before: 528400 Guangdong province Zhongshan City West sirlon third industrial zone Patentee before: ZHONGSHAN BROAD-OCEAN MOTOR Co.,Ltd. Patentee before: BROAD-OCEAN MOTOR EV Co.,Ltd. |