CN216959531U - Magnet protective housing of motor rotor - Google Patents
Magnet protective housing of motor rotor Download PDFInfo
- Publication number
- CN216959531U CN216959531U CN202220799862.5U CN202220799862U CN216959531U CN 216959531 U CN216959531 U CN 216959531U CN 202220799862 U CN202220799862 U CN 202220799862U CN 216959531 U CN216959531 U CN 216959531U
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- heat dissipation
- magnet
- rotor
- shell body
- motor
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- Permanent Field Magnets Of Synchronous Machinery (AREA)
Abstract
The utility model discloses a magnet protection shell of a motor rotor, which comprises a shell body, wherein a cavity for accommodating a magnet is arranged in the shell body, a through hole for a motor shaft to pass through is formed in the end part of the shell body, a heat dissipation window is arranged on the end part of the shell body, an inclined air deflector is arranged on the heat dissipation window, and the coverage range of the air deflector is half of that of the heat dissipation window. The magnet protection shell of the motor rotor can protect the magnet of the rotor in the cavity of the rotor, so that the magnet is prevented from being damaged by collision, and the service life of the motor is effectively prolonged; and moreover, the end part of the shell body is provided with the heat dissipation window, so that air rapidly enters the protective shell through the flow guide effect of the air guide plate when the rotor rotates, the rotor is rapidly cooled, and the motor is more stable in operation.
Description
Technical Field
The utility model relates to a protective shell, in particular to a magnet protective shell of a motor rotor.
Background
A common permanent magnet motor includes a stator and a rotor with magnets disposed thereon. In traditional motor structure, magnet snap-on is on the rotor to expose in the inner chamber of stator, though this kind of structure is favorable to the rotor heat dissipation, but magnet on the rotor is damaged by the foreign object collision easily when motor operation or dismouting are maintained, causes motor trouble, influences motor life.
Disclosure of Invention
The utility model aims to provide a magnet protection shell of a motor rotor, which can effectively protect a magnet from collision damage so as to prolong the service life of a motor.
In order to solve the technical problem, the magnet protection shell of the motor rotor comprises a shell body, wherein a cavity for accommodating a magnet is arranged in the shell body, a through hole for a motor shaft to pass through is formed in the end part of the shell body, a heat dissipation window is arranged on the end part of the shell body, an inclined air deflector is arranged on the heat dissipation window, and the coverage range of the air deflector is half of that of the heat dissipation window.
The included angle between the air deflector and the end part of the shell body is 30 degrees, so that the size of an opening between the air deflector and the heat dissipation window is proper, and the heat dissipation requirement and the rotor installation requirement are unified.
The heat dissipation windows are rectangular, the number of the heat dissipation windows is four, the heat dissipation windows are circumferentially distributed at the end part of the shell body, and the length direction of the heat dissipation windows is consistent with the radial direction of the end part of the shell body, so that the heat dissipation effect of the heat dissipation windows is optimal.
The outer edge of the through hole is provided with a groove, and a convex ring corresponding to the groove is formed on the inner side surface of the end part of the shell body so as to improve the structural rigidity of the through hole part and prevent deformation.
The utility model has the beneficial effects that: the magnet protective shell of the motor rotor can protect the magnet of the rotor in the cavity of the rotor, so that the magnet is prevented from being damaged by collision, and the service life of the motor is effectively prolonged; and moreover, the end part of the shell body is provided with a heat dissipation window, so that air can rapidly enter the protective shell through the flow guide effect of the air guide plate when the rotor rotates, the rotor can rapidly dissipate heat, and the motor can run more stably.
Drawings
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
FIG. 1 is one of the schematic structural diagrams of the present invention;
FIG. 2 is a second schematic structural diagram of the present invention;
FIG. 3 is a third schematic view of the present invention;
fig. 4 is a sectional view a-a in fig. 3.
Detailed Description
Referring to fig. 1 to 4, the magnet protecting casing of the motor rotor of the present invention includes a casing body 1, a cavity 11 for accommodating a magnet is provided in the casing body 1, a through hole 12 for a motor shaft to pass through is provided at an end of the casing body 1, a heat dissipation window 2 is provided at the end of the casing body 1, an inclined air deflector 3 is provided on the heat dissipation window 2, and a coverage of the air deflector 3 is half of the heat dissipation window 2.
In the present embodiment, the angle B between the air deflector 3 and the end of the casing body 1 is 30 degrees. The heat dissipation windows 2 are rectangular, the number of the heat dissipation windows is four, the heat dissipation windows are circumferentially distributed at the end part of the shell body 1, and the length direction of the heat dissipation windows 2 is consistent with the radial direction of the end part of the shell body 1. The outer edge of the through hole 12 is provided with a groove 4, and the inner side surface of the end part of the shell body 1 is provided with a convex ring 5 corresponding to the groove 4.
The above description is only a preferred embodiment of the present invention, and the technical solutions that achieve the objects of the present invention by basically the same means are all within the protection scope of the present invention.
Claims (4)
1. The utility model provides an electric motor rotor's magnet protective housing, includes the shell body, its characterized in that: the motor casing is characterized in that a cavity for accommodating the magnet is formed in the casing body, a through hole for a motor shaft to pass through is formed in the end portion of the casing body, a heat dissipation window is formed in the end portion of the casing body, an inclined air deflector is arranged on the heat dissipation window, and the coverage range of the air deflector is half of that of the heat dissipation window.
2. The protective case for a magnet of a rotor of an electric machine according to claim 1, wherein: the included angle between the air deflector and the end part of the shell body is 30 degrees.
3. The protective case for a magnet of a rotor of an electric machine according to claim 1 or 2, wherein: the heat dissipation windows are rectangular, the number of the heat dissipation windows is four, the heat dissipation windows are circumferentially distributed at the end part of the shell body, and the length direction of the heat dissipation windows is consistent with the radial direction of the end part of the shell body.
4. A protective case for a magnet of a rotor of an electric machine according to claim 3, wherein: the outer edge of the through hole is provided with a groove, and a convex ring corresponding to the groove is formed on the inner side surface of the end part of the shell body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220799862.5U CN216959531U (en) | 2022-04-07 | 2022-04-07 | Magnet protective housing of motor rotor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220799862.5U CN216959531U (en) | 2022-04-07 | 2022-04-07 | Magnet protective housing of motor rotor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216959531U true CN216959531U (en) | 2022-07-12 |
Family
ID=82301480
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220799862.5U Active CN216959531U (en) | 2022-04-07 | 2022-04-07 | Magnet protective housing of motor rotor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216959531U (en) |
-
2022
- 2022-04-07 CN CN202220799862.5U patent/CN216959531U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |