CN202488243U - Rotor sheath structure for permanent magnet synchronous motor - Google Patents
Rotor sheath structure for permanent magnet synchronous motor Download PDFInfo
- Publication number
- CN202488243U CN202488243U CN2012201158273U CN201220115827U CN202488243U CN 202488243 U CN202488243 U CN 202488243U CN 2012201158273 U CN2012201158273 U CN 2012201158273U CN 201220115827 U CN201220115827 U CN 201220115827U CN 202488243 U CN202488243 U CN 202488243U
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- sheath
- circular base
- leg
- sheath body
- rotor
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Abstract
The utility model discloses a rotor sheath structure for a permanent magnet synchronous motor. The rotor sheath structure comprises a sheath body and a sheath cover. The sheath body consists of a circular base and two or more than two support legs arranged on the circular base, wherein the support legs are substantially perpendicular to the circular base, and have substantially V-shaped sections of which openings face the outside of the circular base; fixed legs are arranged on the circular base of the sheath body, and are higher than the support legs; and the internal diameter of the circular base of the sheath body is greater than the external diameter of a rotor shaft, and is smaller than the external diameter of the magnetic steel fixing cylindrical surface of the rotor shaft. The sheath cover is circular, and fixing holes matched with the fixed legs on the circular base are formed on the end face of the sheath cover. The sheath body is matched with the sheath cover to axially wrap a part of the rotor shaft attached to the magnetic steel, so that the magnetic steel can be ensured not to axially move. Moreover, the sectional heights of the support legs of the sheath body are substantially equal to the thickness of the magnetic steel of the motor, so that the radial dimension of a motor rotor cannot be increased by the rotor sheath, and the air gap design range of the motor is widened.
Description
Technical field
The utility model relates to a kind of rotor jacket structure of permagnetic synchronous motor, relates in particular to the rotor jacket structure of the permagnetic synchronous motor that industrial sewing machine uses.
Background technology
In the prior art, being fixedly connected normally between armature spindle and magnet steel glue coated and being provided with rotor jacket of the armature spindle of permagnetic synchronous motor and magnet steel at the outer surface of magnet steel.Rotor jacket is the outer round surface that cylindrical shroud is contained in magnet steel; Because rotor jacket has certain thickness; Therefore the air gap between motor stator and the rotor can not be too little; Otherwise be prone to cause produce mechanical friction between motor stator and rotor, serious also can cause accident, and then has limited the scope of design of motor gas-gap.
Summary of the invention
The purpose of the utility model provides the permanent-magnetic synchronous motor rotor jacket structure that a kind of industrial sewing machine is used, and can therefore not increase the radial dimension of rotor.
The utility model includes sheath body and sheath lid, and the sheath body is made up of circular base and the leg more than two or two that is located on the said circular base, and said leg is roughly vertical with said circular base; The cross section of said leg is roughly V-shaped, and the opening of V-arrangement is towards the outside of circular base, and the circular base of sheath body is provided with fixed leg, and the height of said fixed leg is greater than the height of said leg.The internal diameter of said sheath body ring-shaped base is used for fixing the external diameter on the magnet steel face of cylinder greater than the external diameter of armature spindle but less than armature spindle.Said sheath lid is for circular, its end face be provided with circular base on the fixing hole that matches of fixed leg.
The leg of said sheath body is at the positioning bar that is provided with a convexity towards the place, inboard of circular base, and said positioning bar can match with the location notch on the rotor axis of electric.Roughly the thickness with magnetic steel of motor is suitable for its depth of section of sheath body leg, and the fixed leg on the circular base of said sheath body is located at the V-arrangement opening inboard of leg.
Be provided with near the said sheath lid fixing hole be fixed on the sheath lid and with the guide plate of this sheath lid approximate vertical.Leg on the circular base of sheath body preferably is made as four.
Because the leg cross section of the sheath body of the utility model is V-shaped, and opening makes the magnet steel between two legs be easy to be positioned in the outer surface of armature spindle, and through glue coated between armature spindle and magnet steel, helps the fixing of magnet steel towards the outside.In addition, through cooperating of sheath body and sheath lid, in the part of the magnet steel of axially armature spindle being fitted was wrapped in, it was mobile to guarantee that magnet steel can not produce in the axial direction.And the depth of section of the sheath body leg roughly thickness with magnetic steel of motor is suitable; Therefore the existence of rotor jacket can't increase the radial dimension (as shown in Figure 3) of rotor; The scope of design of motor gas-gap is increased, help the motor design performance and further optimize.
Description of drawings
Fig. 1 is the structural representation of the utility model;
Fig. 2 is the A-A cutaway view of Fig. 1;
Fig. 3 is the B-B cutaway view of Fig. 1;
Fig. 4 is a sheath body construction sketch map;
Fig. 5 is the partial enlarged drawing of sheath body;
Fig. 6 is the structural representation of sheath lid;
Fig. 7 is the structural representation of rotor axis of electric.
Embodiment
The embodiment that provides below in conjunction with accompanying drawing further describes the utility model:
The rotor sheath comprises sheath body 2 and sheath lid 4.The circular base of sheath body 2 is provided with four vertical with it legs 5.The internal diameter of the circular base of sheath body can make the sheath body be inserted in armature spindle 1 greater than the external diameter of armature spindle 1, the end face of the circular base of sheath body when touching armature spindle and be used for fixing the end face on the face of cylinder of magnet steel 3 with axial location.Said leg 5 is at the positioning bar 7 that is provided with a convexity towards the place, inboard of the circular base of sheath body; Said positioning bar 7 can match with the location notch 10 on the rotor axis of electric; Positioning bar snaps in this location notch; Control both position relations on the armature spindle radial circumference, guarantee that sheath body 2 can be around armature spindle 1 rotation.
Near the fixing hole 9 of said sheath lid 4, be provided be fixed on the sheath lid and with the guide plate 8 of sheath lid approximate vertical.In the V-arrangement opening of said leg, be provided with the fixed leg 6 that is fixed on the circular base.During assembling, magnet steel 3 usefulness glue are fitted in the cylindrical outer surface 11 that armature spindle is used for fixing magnet steel, between two legs 5 of sheath body, cover sheath lid 4 then.Because sheath covers at end face and is provided with fixing hole 9, match with fixed leg 6 on the circular base of sheath body in this hole, and fixed leg 6 inserts in the fixing holes 9, and fixed leg is interference fit with fixing hole, covers with assurance sheath body and sheath to link together.When fixed leg 6 inserted fixing hole 9, the guide plate 8 on fixing hole 9 next doors play the guiding role, and made that assembling is more convenient.
Claims (6)
1. the rotor jacket structure of a permagnetic synchronous motor; Include sheath body (2) and sheath lid (4); It is characterized in that: sheath body (2) is made up of circular base and the leg more than two or two (5) that is located on the said circular base, and said leg is roughly vertical with said circular base, and the cross section of said leg (5) is roughly V-shaped; And the opening of V-arrangement is towards the outside of circular base; The circular base of sheath body is provided with fixed leg (6), and the height of said fixed leg is greater than the height of said leg, and the internal diameter of the circular base of said sheath body is used for fixing the external diameter of the magnet steel face of cylinder (11) greater than the external diameter of armature spindle (1) but less than armature spindle; Said sheath lid (4) is circular, its end face be provided with circular base on the fixing hole (9) that matches of fixed leg (6).
2. the rotor jacket structure of permagnetic synchronous motor according to claim 1; It is characterized in that: the leg of said sheath body (5) is at the positioning bar (7) that is provided with a convexity towards the place, inboard of circular base, and said positioning bar can match with the location notch (10) on the rotor axis of electric (1).
3. the rotor jacket structure of permagnetic synchronous motor according to claim 1 and 2; It is characterized in that: roughly the thickness with magnetic steel of motor is suitable for its depth of section of sheath body leg (5), and the fixed leg (6) on the circular base of said sheath body is located at the V-arrangement opening inboard of leg (5).
4. the rotor jacket structure of permagnetic synchronous motor according to claim 1 and 2, its characteristic: be provided with near the said sheath lid fixing hole (9) be fixed on sheath lid (4) and with the guide plate (8) of this sheath lid approximate vertical.
5. the rotor jacket structure of permagnetic synchronous motor according to claim 3 is characterized in that: near said sheath lid fixing hole (9), be provided be fixed on sheath lid (4) and with the guide plate (8) of this sheath lid approximate vertical.
6. the rotor jacket structure of permagnetic synchronous motor according to claim 5, it is characterized in that: the leg (5) on the circular base of sheath body preferably is made as four.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201158273U CN202488243U (en) | 2012-03-23 | 2012-03-23 | Rotor sheath structure for permanent magnet synchronous motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201158273U CN202488243U (en) | 2012-03-23 | 2012-03-23 | Rotor sheath structure for permanent magnet synchronous motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202488243U true CN202488243U (en) | 2012-10-10 |
Family
ID=46962632
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012201158273U Expired - Lifetime CN202488243U (en) | 2012-03-23 | 2012-03-23 | Rotor sheath structure for permanent magnet synchronous motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202488243U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103066726A (en) * | 2012-12-14 | 2013-04-24 | 杜小兵 | Motor rotor with novel magnetic source fixing structure |
| CN106567839A (en) * | 2016-10-31 | 2017-04-19 | 常州市永安电机有限公司 | Structure system of draught fan |
-
2012
- 2012-03-23 CN CN2012201158273U patent/CN202488243U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103066726A (en) * | 2012-12-14 | 2013-04-24 | 杜小兵 | Motor rotor with novel magnetic source fixing structure |
| CN103066726B (en) * | 2012-12-14 | 2015-08-05 | 杜小兵 | With the rotor of novel magnetic source fixed structure |
| CN106567839A (en) * | 2016-10-31 | 2017-04-19 | 常州市永安电机有限公司 | Structure system of draught fan |
| CN106567839B (en) * | 2016-10-31 | 2022-07-05 | 常州市永安电机有限公司 | Structural system of fan |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 201108 Minhang District City, Shanghai Road, No. 2060, 1-3 floor, 5 Patentee after: Xin'an Naida drive technology (Shanghai) Limited by Share Ltd Address before: 201108 Minhang District City, Shanghai Road, No. 2060, 1-3 floor, 5 Patentee before: Xinan Naida Drive Technology (Shanghai) Co.,Ltd. |
|
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: 201100 floor 1-2, block a, 19 Lane 133, Guangzhong Road, Minhang District, Shanghai Patentee after: Aneida drive technology (Shanghai) Co., Ltd Address before: 201108, Minhang District, Shanghai Garden Road No. 5, 2060, 1-3 Patentee before: Xin'an Naida drive technology (Shanghai) Limited by Share Ltd |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20121010 |