CN201008123Y - Magnetic shoe protection structure for DC motor - Google Patents
Magnetic shoe protection structure for DC motor Download PDFInfo
- Publication number
- CN201008123Y CN201008123Y CNU2007200484185U CN200720048418U CN201008123Y CN 201008123 Y CN201008123 Y CN 201008123Y CN U2007200484185 U CNU2007200484185 U CN U2007200484185U CN 200720048418 U CN200720048418 U CN 200720048418U CN 201008123 Y CN201008123 Y CN 201008123Y
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- CN
- China
- Prior art keywords
- magnetic shoe
- motor
- magnet
- protection structure
- permanent
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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- Permanent Field Magnets Of Synchronous Machinery (AREA)
- Dc Machiner (AREA)
- Power Steering Mechanism (AREA)
Abstract
The utility model relates to a magnet protection structure of a direct current motor, which comprises a motor shell, a ferrite magnet arranged at the inner surface of the motor shell and a magnet protection loop at the inner side of the ferrite magnet, wherein the magnet protection loop is a cylinder shaped thin surface part made of none conduction material, the motor shell inner tube is provided with a protection steel loop made of none conduction material, the ferrite magnet is closed between the shell inner surface and the protection steel loop, which realizes swift loading and unloading and guarantees crash of the ferrite magnet being of no influence on the motor rotor rotating. The utility model is reasonable in structure, reliable, long in service life and convenient for loading and unloading, which is especially suitable for assisting a converting motor in car converting system.
Description
Technical field
The utility model relates to a kind of direct current machine, particularly a kind of magnetic shoe protection structure that is used in the motor turning direct current machine.
Background technology
At present, on the market energy savings, improve the reliability and the flexibility of motor turning, automobile adopts the power-assisted steering motor in steering.This motor adopts the permanent-magnet ferrite direct current machine when design, the permanent magnet material of motor is a ferrite sintered body, frangible characteristic is arranged, the vibration that automobile produces under steam or be subjected to external force collision might cause the permanent-magnet ferrite fragmentation, broken permanent-magnet ferrite falls into motor, can make motor block or turn round and have some setbacks, make the automobile in travelling out of hand, cause the accident.
Disclose a kind of automobile electric booster steering system motor in the China Patent No. 200420063323.7, the armature of motor is made up of armature core, main shaft, armature coil and commutator; Armature core is fixed on the main shaft, adopts epoxy coated insulation; Stator is made up of casing and magnetic shoe, and casing inner wall is installed magnetic shoe, and magnetic shoe is selected ferrite permanent-magnet materials for use, and casing and rear end cap are drawn into an overall structure with steel plate, so make overall structure simple; Front end housing is by the aluminium alloy compression casting moulding; Ball bearing is installed at two ends, main shaft supporting place.This utility model is that a kind of automobile electric booster steering system is with the brush permanent magnet direct current motor is arranged, it is said, it has the slow-speed of revolution, large torque, noise is little, volume is little, in light weight, simple in structure, stock utilization is high, is convenient to produce in enormous quantities characteristics such as long service life.The exposed contact between the ferrite stator of this motor and the rotor, in case the ferrite fragmentation, fragment can directly have influence on the motor normal operation.
The utility model content
The purpose of this utility model aims to provide that a kind of compact conformation, volume are little, the magnetic shoe protection structure of long service life, cost of manufacture is low, protective value is strong direct current machine, to overcome weak point of the prior art.
Press the magnetic shoe protection structure of a kind of direct current machine of this purpose design, comprise motor housing and the permanent-magnet ferrite that is arranged at its inwall, its architectural feature is to be provided with the magnetic shoe guard circle in the inboard of permanent-magnet ferrite.
Described magnetic shoe guard circle is the cylindrical thin wall spare that non-magnet_conductible material is made.
Described magnetic shoe guard circle outer surface is provided with axial convex tendon.
Described magnetic shoe guard circle is fixed in the shell inner cavity by upper bracket and lower carriage; Permanent ferrite magnetic tile is sealed between magnetic shoe guard circle and the outer casing inner wall.
The utility model is provided with the protection steel ring that non-magnet_conductible material is done in the motor housing inner chamber; and permanent ferrite magnetic tile is enclosed between outer casing inner wall and the protection steel ring; both realized quick mounting or dismounting, also rotation impacts to rotor also to have guaranteed the permanent-magnet ferrite fragmentation.It is simple and reasonable, safe and reliable, long service life, mounting or dismounting are nimble, the power-assisted steering motor that is specially adapted to adopt in the automobile steering system.
Description of drawings
Fig. 1 is a magnetic shoe guard circle front view among the utility model one embodiment.
Fig. 2 is the end view of Fig. 1.
Fig. 3 is a magnetic shoe guard circle front view among another embodiment of the utility model.
Fig. 4 is the end view of Fig. 3.
Fig. 5 is an example structure schematic diagram of the present utility model.
Fig. 6 is an A-A sectional structure schematic diagram among Fig. 5.
Embodiment
Below in conjunction with drawings and Examples the utility model is further described.
Referring to Fig. 1-Fig. 2 and Fig. 5-Fig. 6, the magnetic shoe of this direct current machine protection structure comprises motor housing 1, is provided with the magnetic shoe guard circle 4 of cylindrical thin wall spare in the shell inner cavity.Magnetic shoe protection steel ring is fixed in the inner chamber of motor housing 1 by upper bracket 2 and lower carriage 5, and permanent-magnet ferrite 3 is sealed in the space of protecting between steel ring and the shell 1.Protection steel ring outer surface is provided with four axial convex tendons 4.1, and convex tendon is used to separate each block permanent magnet oxysome 3 of shell 1 inwall.This structure makes permanent-magnet ferrite be in the state of sealing fully, and it can be scattered when fragmentation.
When if permanent-magnet ferrite 3 is an integral body, protection steel ring outer surface is smooth tubular, and convex tendon is not established on the surface, as shown in Figure 3, Figure 4.
Claims (5)
1. the magnetic shoe of direct current machine protection structure comprises motor housing (1) and is arranged at the permanent-magnet ferrite (3) of its inwall, it is characterized in that being provided with in the inboard of permanent-magnet ferrite magnetic shoe guard circle (4).
2. the magnetic shoe of direct current machine according to claim 1 protection structure is characterized in that described magnetic shoe guard circle is the cylindrical thin wall spare that non-magnet_conductible material is made.
3. the magnetic shoe of direct current machine according to claim 2 protection structure is characterized in that described magnetic shoe guard circle outer surface is provided with axial convex tendon (4.1).
4. the magnetic shoe of direct current machine according to claim 3 protection structure, the quantity that it is characterized in that described axial convex tendon is corresponding with the quantity of the number of poles of motor and permanent ferrite magnetic tile.
5. the magnetic shoe of DC generator according to claim 2 protection structure is characterized in that described magnetic shoe guard circle is fixed in the shell inner cavity by upper bracket (2) and lower carriage (5); Permanent ferrite magnetic tile is sealed between magnetic shoe guard circle and the outer casing inner wall.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200484185U CN201008123Y (en) | 2007-02-04 | 2007-02-04 | Magnetic shoe protection structure for DC motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200484185U CN201008123Y (en) | 2007-02-04 | 2007-02-04 | Magnetic shoe protection structure for DC motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201008123Y true CN201008123Y (en) | 2008-01-16 |
Family
ID=39004072
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200484185U Expired - Lifetime CN201008123Y (en) | 2007-02-04 | 2007-02-04 | Magnetic shoe protection structure for DC motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201008123Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104467214A (en) * | 2013-09-12 | 2015-03-25 | 德昌电机(深圳)有限公司 | Motor stator assembly and assembling method thereof |
| CN104967231A (en) * | 2015-07-24 | 2015-10-07 | 日本电产凯宇汽车电器（江苏）有限公司 | AMT motor magnetic tile installation structure |
| CN105375732A (en) * | 2015-11-17 | 2016-03-02 | 广东工业大学 | Single-cylinder electromagnetic engine |
-
2007
- 2007-02-04 CN CNU2007200484185U patent/CN201008123Y/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104467214A (en) * | 2013-09-12 | 2015-03-25 | 德昌电机(深圳)有限公司 | Motor stator assembly and assembling method thereof |
| CN104467214B (en) * | 2013-09-12 | 2019-04-12 | 德昌电机(深圳)有限公司 | Motor stator component and its assemble method |
| CN104967231A (en) * | 2015-07-24 | 2015-10-07 | 日本电产凯宇汽车电器（江苏）有限公司 | AMT motor magnetic tile installation structure |
| CN105375732A (en) * | 2015-11-17 | 2016-03-02 | 广东工业大学 | Single-cylinder electromagnetic engine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: FOSHAN WEILING WASHING ECLECTRICAL MACHINE MANUFAC Free format text: FORMER OWNER: GUANGDONG WELLING ELECTRIC MACHINE MANUFACTURE CO., LTD. Effective date: 20101125 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 528300 PENGLAI ROAD, BEIJIAO TOWN, SHUNDE DISTRICT, FOSHAN CITY, GUANGDONG PROVINCE TO: 528311 BEIJIAO INDUSTRIAL PARK, SHUNDE DISTRICT, FOSHAN CITY, GUANGDONG PROVINCE |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20101125 Address after: 528311 Industrial Park, Beijiao Town, Shunde District, Guangdong, China, Foshan Patentee after: Foshan Welling Washer Motor Manufacturing Co., Ltd. Address before: 528300 Penglai Road, Beijiao Town, Shunde District, Guangdong, Foshan Patentee before: Guangdong Welling Electric Machine Manufacture Co., Ltd. |
|
| ASS | Succession or assignment of patent right |
Owner name: GUANGDONG POWERFUL MOTOR CO., LTD. Free format text: FORMER OWNER: FOSHAN WELLING WASHING APPLIANCES MANUFACTURING CO., LTD. Effective date: 20140709 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20140709 Address after: 528311, No. 21, Foshan Road, Beijiao Industrial Zone, Shunde District, Guangdong Patentee after: Guangdong Powerful Motor Co., Ltd. Address before: 528311 Industrial Park, Beijiao Town, Shunde District, Guangdong, China, Foshan Patentee before: Foshan Welling Washer Motor Manufacturing Co., Ltd. |
|
| CX01 | Expiry of patent term |
Granted publication date: 20080116 |
|
| CX01 | Expiry of patent term |