CN203554105U

CN203554105U - High-speed permanent magnet motor rotor protective structure

Info

Publication number: CN203554105U
Application number: CN201320757111.8U
Authority: CN
Inventors: 王海; 王佐梁; 刘俊
Original assignee: XI'AN KYLIN ELECTRIC CO Ltd
Current assignee: XI'AN KYLIN ELECTRIC CO Ltd
Priority date: 2013-11-22
Filing date: 2013-11-22
Publication date: 2014-04-16
Anticipated expiration: 2023-11-22

Abstract

The utility model discloses a high-speed permanent magnet motor rotor protective structure. The high-speed permanent magnet motor rotor protective structure comprises a rotor core mounted on a shaft; permanent magnets are embedded in the rotor core; both ends of the rotor core are provided with a rotor core end press plate; and a non-metal protective sleeve is wound on the external periphery of the rotor core along a circumferential direction. When a motor rotates at a high speed, a huge centrifugal force of the magnets of a rotor will make the outer periphery of the rotor core deformed, the rotor may collide with a stator, and as a result, the motor may be damaged, while with the high-speed permanent magnet motor rotor protective structure of the utility model which is a fixing structure adopted, the shift of the non-metal protective sleeve can be prevented, and the non-metal protective sleeve can be tightly fixed on the rotor core, such that the deformation of the outer periphery of the rotor can be avoided, and at the same time, any shift of the non-metal protective sleeve can be avoided.

Description

High speed permanent magnet motor rotor safeguard structure

Technical field

The utility model belongs to magneto technical field, is specifically related to a kind of high speed permanent magnet motor rotor safeguard structure.

Background technology

Existing permanent magnet machine rotor safeguard structure adopts damascene structures conventionally, and this structure is very effective when minitype permanent magnetism motor and rotating speed are not very too high, but can be because mechanical strength produces fault not on Large-power High-Speed magneto.

Utility model content

The purpose of this utility model is to provide a kind of high speed permanent magnet motor rotor safeguard structure, the problem of mechanical insufficient strength when rotating shaft High Rotation Speed that solves that prior art exists.

The technical solution adopted in the utility model is, high speed permanent magnet motor rotor safeguard structure, comprises the rotor core being arranged on axle, and permanent magnet is embedded in rotor core, the two ends of rotor core are provided with rotor core end clamp plate, and nonmetal protective jacket is along the circumferential direction wrapped in rotor core cylindrical.

Feature of the present utility model is also, on rotor core end clamp plate wherein, is provided with groove, and nonmetal protective jacket is partially submerged in groove.

Nonmetal protective jacket is wherein glass tape or carbon fiber tape.

The beneficial effects of the utility model are: when motor High Rotation Speed, the huge centrifugal force of rotor magnetic steel can make rotor core cylindrical generation deformation, cause rotor and stator collision to injure motor, the utility model is to prevent nonmetal protective jacket vibration technique fixed structure, can completely nonmetal protective jacket be tightly fixed on rotor core and prevent rotor outer circle deformation, can there is not any vibration in nonmetal protective jacket simultaneously.

Accompanying drawing explanation

Fig. 1 is the structural representation of the utility model high speed permanent magnet motor rotor safeguard structure.

In figure, 1. rotating shaft, 2. rotor core end clamp plate, 3. nonmetal protective jacket, 4. rotor core, 5. permanent magnet.

Embodiment

Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.

The structure of the utility model high speed permanent magnet motor rotor safeguard structure, as shown in Figure 1, comprise the rotor core 4 being arranged on axle 1, permanent magnet 5 is embedded in rotor core 4, the two ends of rotor core 4 are provided with rotor core end clamp plate 2, nonmetal protective jacket 3 forms for being along the circumferential direction wrapped in glass tape or the carbon fiber tape of rotor core 4 cylindricals, and object is to prevent from when rotor high-speed turns round that insufficient strength due to rotor core 4 causes damage and cause permanent magnet 5 to fly out from rotor core 4.Fluted on rotor core end clamp plate 2, nonmetal protective jacket 3 is partially submerged in groove, to prevent that nonmetal protective jacket 3 from coming off.

Existing nonmetal protective jacket is directly wrapped on rotor core, and when temperature of rotor changes, nonmetal protective jacket likely can vibration, does not have protection in the effect of high speed rotating protection rotor core deformation.And the utility model can tightly be fixed on nonmetal protective jacket on rotor core, can there is not any vibration in nonmetal protective jacket simultaneously.

Claims

1. high speed permanent magnet motor rotor safeguard structure, it is characterized in that, comprise the rotor core (4) being arranged on axle (1), permanent magnet (5) is embedded in rotor core (4), the two ends of rotor core (4) are provided with rotor core end clamp plate (2), and nonmetal protective jacket (3) is along the circumferential direction wrapped in described rotor core (4) cylindrical.

2. high speed permanent magnet motor rotor safeguard structure according to claim 1, is characterized in that, on described rotor core end clamp plate (2), is provided with groove, and nonmetal protective jacket (3) is partially submerged in groove.

3. high speed permanent magnet motor rotor safeguard structure according to claim 1, is characterized in that, described nonmetal protective jacket (3) is glass tape or carbon fiber tape.