CN103378669A - Magnetic steel external rotor structure - Google Patents
Magnetic steel external rotor structure Download PDFInfo
- Publication number
- CN103378669A CN103378669A CN 201210112148 CN201210112148A CN103378669A CN 103378669 A CN103378669 A CN 103378669A CN 201210112148 CN201210112148 CN 201210112148 CN 201210112148 A CN201210112148 A CN 201210112148A CN 103378669 A CN103378669 A CN 103378669A
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- China
- Prior art keywords
- magnetic steel
- fixed support
- rotor structure
- magnetic links
- torus
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Abstract
The invention discloses a magnetic steel external rotor structure which is with simple structure, convenient to produce and install, and energy saving. The magnetic steel external rotor structure includes an end cover and an iron ring fixed on the end cover. The end cover is mounted on a shaft through a bearing, a fixed support is disposed on the inner wall of the iron ring, a plurality of magnetic steel plates are disposed in the fixed support, and the length of a upward torus is more than the length of the magnetic steel plates. The fixed support of the torus is provided with a plurality of magnetic steel plate placing grooves side by side. The magnetic steel plates are placed in the center position of the axial direction of the fixed support. The magnetic steel external rotor structure for an electric motor is advantages in that: the magnetic steel external rotor structure is with simple structure, the magnetic steel plates can be installed easily, and the magnetic steel plates is prevented from dropping and inclining since the width of the magnetic steel plate placing groove is almost the same with the magnetic steel plates, the magnetic steel plates are subjected to a big clamping force when the magnetic steel plates are placed in the magnetic steel plate placing groove.
Description
Technical field
The present invention relates to a kind of rotor structure in electric vehicle motor field, especially a kind of Alnico outer-rotor structure.
Background technology
External rotor is the important component part of electric vehicle motor, and itself and stator combination consist of the main part of motor together jointly.
As shown in Figures 1 to 4, electric vehicle motor Alnico outer-rotor structure of the prior art comprises by bearing 101 being installed in the end cap 103 on the axle 102 and being fixed on iron ring 104 on the end cap 103, is provided with a plurality of magnetic links 105 on iron ring 104 inwalls; Be provided with in opposite directions two fixed supports 106 on iron ring 104 inwalls, this fixed support 106 comprises annular stent base 107, is arranged at intervals with a plurality of support arms 108 on the bracket base 107, and support arm 108 is along the axial projection of bracket base 107; Magnetic links 105 is installed on the fixed support 106, and its two ends withstand on respectively on the bracket base 107, and 108 intervals of supported arm between two magnetic links 105.
Above-mentioned Alnico external rotor of the prior art, when fixing magnetic links, at first a fixed support 106 is fixed on iron ring 104 inwalls, then magnetic links 105 is inserted in the support arm 108, again another fixed support 106 symmetries are enclosed within on iron ring 104 inwalls, with glue magnetic links 105 and fixed support 106 are bonded on the iron ring inwall at last.
In installation process, when a magnetic links was inserted between two adjacent support arms, its active force that is subject to was the support force straight up that bracket base applies its bottom, and two support arms of these magnetic links both sides are to its chucking power.Because support arm be along the axial projection of bracket base, its area that contact with magnetic links is less, and this is with regard to so that the chucking power deficiency that is subject to after the magnetic links insertion, drops or tilts at fixed support easily, makes troubles to installation.
In addition, the Alnico external rotor of this structure, the mounting magnetic steel sheet needs two fixed supports, therefore just must in two steps two fixed supports be installed in respectively on the iron ring inwall in the installation process, its production and processing operation is loaded down with trivial details, installation steps are complicated, so that the production efficiency of this external rotor is lower, and its production cost is higher.
Summary of the invention
The technical problem to be solved in the present invention provides a kind of simple in structure, production and easy for installation, and the Alnico outer-rotor structure of saving cost.
For addressing the above problem, a kind of Alnico outer-rotor structure of the present invention, comprise end cap and be fixed on iron ring on the end cap, end cap is installed on the axle by bearing, be provided with fixed support on the iron ring inwall, a plurality of magnetic links are disposed in the fixed support, it is characterized in that: described support bracket fastened body is torus, and the length on this torus is axial is greater than the length of magnetic links; On described torus fixed support, offer side by side several magnetic links standing grooves; Described magnetic links standing groove is positioned at the axial centre position of fixed support.
The thickness that described torus directly makes progress is less than the thickness of magnetic links.
All apart from being opened on the torus, the width of its width and single magnetic links is basic identical for described magnetic links standing groove.
Described fixed support is that non-magnetic material is made.
Described non-magnetic material is plastic material.
Adopt Alnico outer-rotor structure of the present invention, when fixing magnetic links, at first the torus fixed support is fixed on the iron ring inwall, then magnetic links is inserted in the magnetic links standing groove, with glue magnetic links and fixed support are bonded on the iron ring inwall again.
In terms of existing technologies, the Alnico outer-rotor structure of structure of the present invention, simple in structure, magnetic links is easy to assembling, because width and the magnetic links of magnetic links standing groove are basic identical, when therefore being placed on magnetic links in the magnetic links standing groove, magnetic links is subject to larger chucking power, thereby guarantees that it can not drop or tilt before bonding; Adopt simultaneously the fixed support in the structure of the present invention, only need an installation of just enough finishing whole magnetic links, reduced operating procedure, improved production efficiency, and this fixed support is easy to process, thereby has saved cost.
Description of drawings
Fig. 1 is Alnico outer-rotor structure schematic diagram in the prior art.
Fig. 2 is fixing rack structure schematic diagram in the Alnico outer-rotor structure of the prior art.
Fig. 3 is fixed support and magnetic links rigging position schematic diagram in the Alnico outer-rotor structure of the prior art.
Fig. 4 is fixed support and magnetic links mounting structure schematic diagram in the Alnico outer-rotor structure of the prior art.
Fig. 5 is Alnico outer-rotor structure schematic diagram among the present invention.
Fig. 6 is support bracket fastened structural representation in the Alnico outer-rotor structure of the present invention.
Embodiment
In order to make those skilled in the art person understand better technical solution of the present invention, the present invention is described in further detail below in conjunction with drawings and embodiments.
Shown in Fig. 5,6, a kind of Alnico outer-rotor structure of the present invention comprises by bearing 201 being installed in the end cap 203 on the axle 202 and being fixed on iron ring 204 on the end cap 203, is provided with a plurality of magnetic links 205 on iron ring 204 inwalls.
Be provided with fixed support 206 on iron ring 204 inwalls, these fixed support 206 support bracket fastened bodies are torus, and the length on this torus is axial is greater than the length of magnetic links 205; The thickness that described torus directly makes progress is less than the thickness of magnetic links 205.
The material of described fixed support 206 is plastic material, also can be other non-magnetic materials.
On described torus fixed support 206, offer side by side several magnetic links standing grooves 207; The width of magnetic links standing groove 207 is basic identical with the width that is placed on single magnetic links wherein.
Described several magnetic links standing grooves 207 are groove, all apart from being opened on the torus, and are positioned at fixed support 206 middle parts.
Claims (5)
1. Alnico outer-rotor structure, comprise end cap and be fixed on iron ring on the end cap, end cap is installed on the axle by bearing, be provided with fixed support on the iron ring inwall, a plurality of magnetic links are disposed in the fixed support, it is characterized in that: described support bracket fastened body is torus, and the length on this torus is axial is greater than the length of magnetic links; On described torus fixed support, offer side by side several magnetic links standing grooves; Described magnetic links standing groove is positioned at the axial centre position of fixed support.
2. Alnico outer-rotor structure as described in claim 1, it is characterized in that: the thickness that described torus directly makes progress is less than the thickness of magnetic links.
3. Alnico outer-rotor structure as described in claim 2, it is characterized in that: all apart from being opened on the torus, the width of its width and single magnetic links is basic identical for described magnetic links standing groove.
4. Alnico outer-rotor structure as described in claim 3, it is characterized in that: described fixed support is that non-magnetic material is made.
5. Alnico outer-rotor structure as described in claim 4, it is characterized in that: described non-magnetic material is plastic material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201210112148 CN103378669A (en) | 2012-04-17 | 2012-04-17 | Magnetic steel external rotor structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201210112148 CN103378669A (en) | 2012-04-17 | 2012-04-17 | Magnetic steel external rotor structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103378669A true CN103378669A (en) | 2013-10-30 |
Family
ID=49463382
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201210112148 Pending CN103378669A (en) | 2012-04-17 | 2012-04-17 | Magnetic steel external rotor structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103378669A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105099080A (en) * | 2014-05-21 | 2015-11-25 | 建准电机工业股份有限公司 | Ceiling fan motor |
| CN106849404A (en) * | 2016-12-12 | 2017-06-13 | 国电南京自动化股份有限公司 | The vertical machine stator structure of stator side fluting |
| CN107508445A (en) * | 2017-07-28 | 2017-12-22 | 上海歌尔泰克机器人有限公司 | A kind of outer rotor brushless motor |
| CN114598072A (en) * | 2022-02-21 | 2022-06-07 | 广东肇庆德通有限公司 | Magnetic steel fixing structure of external rotor motor |
-
2012
- 2012-04-17 CN CN 201210112148 patent/CN103378669A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105099080A (en) * | 2014-05-21 | 2015-11-25 | 建准电机工业股份有限公司 | Ceiling fan motor |
| CN106849404A (en) * | 2016-12-12 | 2017-06-13 | 国电南京自动化股份有限公司 | The vertical machine stator structure of stator side fluting |
| CN107508445A (en) * | 2017-07-28 | 2017-12-22 | 上海歌尔泰克机器人有限公司 | A kind of outer rotor brushless motor |
| CN107508445B (en) * | 2017-07-28 | 2020-05-29 | 上海歌尔泰克机器人有限公司 | Brushless motor with outer rotor |
| CN114598072A (en) * | 2022-02-21 | 2022-06-07 | 广东肇庆德通有限公司 | Magnetic steel fixing structure of external rotor motor |
| CN114598072B (en) * | 2022-02-21 | 2022-09-23 | 广东肇庆德通有限公司 | Magnetic steel fixing structure of external rotor motor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20131030 |