CN104300736A - Rainproof self-radiating external-rotor direct current brushless motor - Google Patents
Rainproof self-radiating external-rotor direct current brushless motor Download PDFInfo
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- CN104300736A CN104300736A CN201410653651.0A CN201410653651A CN104300736A CN 104300736 A CN104300736 A CN 104300736A CN 201410653651 A CN201410653651 A CN 201410653651A CN 104300736 A CN104300736 A CN 104300736A
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Abstract
The invention discloses a rainproof self-radiating external-rotor direct current brushless motor, which comprises an upper cover and a lower cover, wherein the upper and lower covers are fixedly connected with a motor shaft; a rotor is fixedly arranged between the upper and lower covers; a plurality of inclined air guide holes are formed in the upper cover; radially distributed spokes are arranged on the inner side of the lower cover by taking the motor shaft as the center; air inlets are formed between the spokes; when the upper cover, the rotor and the lower cover are driven by the motor shaft to rotate together, external cold air entering from the air inlets is continuously blown to an inner cavity of the motor by the spokes rotating in a fixed direction in the lower cover, and is exhausted through the air guide holes after reaching the upper cover. The rainproof self-radiating external-rotor direct current brushless motor is mainly used for an application state that a motor shaft of a model airplane motor is perpendicular to the horizontal plane; a shell frame of an external-rotor motor is structurally improved to realize rainproof sealing and the automatic air guide fan radiation of the motor from bottom to top, so that the effects that cold air quickly flows in a motor body for temperature reduction and heat dissipation and the efficiency of the motor is improved are achieved.
Description
Technical field
The present invention relates to a kind of DC brushless motor, particularly a kind of external-rotor-type is rainproof from dispelling the heat DC brushless motor.
Background technology
Current model plane DC brushless motor can be divided into external rotor electric machine and inner rotor type motor.Existing many gyroplanes great majority have employed external-rotor DC. brush-less.The defect of common external-rotor DC. brush-less is: when motor shaft is perpendicular to ground, in order to ventilative heat radiation and loss of weight, the upper cover of this motor is perforate, thus when being installed on model plane with this state, motor is subject to rain erosion, and existing motor does not have air-flow to blow to stator winding coil from lower cover end yet, under big current during continuous firing, motor can be hot, and efficiency can reduce.
Summary of the invention
Technical problem to be solved by this invention is, does not have rain-proof structure, heat up too fast, affect the technical deficiencies such as electric efficiency under big current for existing model plane motor, provides a kind of rainproof external-rotor DC. brush-less that certainly dispels the heat for air materials such as gyroplanes.
First it should be noted that, when " upper cover " mentioned refers to that motor shaft is in using state perpendicular to the ground, be positioned at the end cap of upper end in the present invention, when " lower cover " refers to that motor shaft is in using state perpendicular to the ground, be positioned at the end cap of lower end.
For solving the problems of the technologies described above, provided by the invention rainproof from dispelling the heat external-rotor DC. brush-less, it comprises the upper cover and lower cover that are fixedly connected with motor shaft, rotor is fixedly installed between this upper cover and lower cover, this covers and offers multiple gas port be obliquely installed, the inner side of this lower cover is provided with the spoke distributed radially centered by motor shaft, between each spoke, air admission hole is set, when motor shaft drives upper cover, when rotor and lower cover rotate together, the cool exterior air entered from air admission hole is blowed to the inner chamber of this motor by spoke that lower cover internal fixtion turns to constantly, discharged by gas port after arriving upper cover.
Being improved to further of such scheme, fan leaf sheet made by this spoke.
Being improved to further of such scheme, when motor shaft uses perpendicular to ground, and upper cover is when upper, and this gas port is inner high outside low angling hole, flows in motor body to prevent rainwater.This gas port can be arranged on the sidewall of this enclosing cover, also can be arranged on the roof of this enclosing cover.
The present invention utilizes aero dynamo to be generally operating state perpendicular to ground, and under motor, cover the spoke that setting distributes radially, and fan leaf chip made by spoke, the blade fixedly turned to during electric machine rotation can ensure upwards cool exterior air to be blowed to constantly the intermediate cylindrical intracoelomic cavity that stator winding and external rotor cylinder are embedded with sheet magnetite, arrives the upper cover at motor top.Because upper cover is positioned at the top, and be provided with skewed multiple gas ports, each gas port is designed to inner high outside low angling hole form, flow in motor body to prevent rainwater, it is external that air-flow sprays to motor from top to bottom through the gas port of upper cover again, reaches and make motor realize auto-radiating and rainproof dual work efficiency.
Compared with prior art, the beneficial effect that the present invention has is:
1. the present invention can lower the temperature by automatic heat radiation, thus protection coil does not burn out, and improves the efficiency of motor;
2. the present invention can be rainproof.
Accompanying drawing explanation
Fig. 1 is the rainproof structural representation from heat radiation external-rotor DC. brush-less of the present invention.
Fig. 2 is lower cover cross-sectional view of the present invention.
Fig. 3 is lower cover plan structure schematic diagram of the present invention.
Fig. 4 is superstructure cross-sectional schematic of the present invention.
In figure: upper cover 1; Lower cover 2; Rotor 3; Motor shaft 4; Stator 5; Bearing 6; Gas port 11; Spoke 21; Air admission hole 22.
Embodiment
As Figure 1-Figure 4, the present invention is rainproof comprises from heat radiation external-rotor DC. brush-less one embodiment the upper cover 1 and lower cover 2 that are fixedly connected with motor shaft 4, rotor 3 is fixedly installed between this upper cover 1 and lower cover 2, the sidewall of this upper cover 1 offers multiple gas port 11 be obliquely installed, the inner side of this lower cover 2 is provided with the spoke 21 distributed radially centered by motor shaft, between each spoke 21, air admission hole 22 is set, when motor shaft drives upper cover 1, when rotor 3 and lower cover 2 rotate together, the cool exterior air entered from air admission hole 22 is blowed to the inner chamber of this motor by spoke 21 that lower cover 2 internal fixtion turns to constantly, discharged by gas port after arriving upper cover 1.For balanced air drag, and make air-supply better effects if, the fan leaf sheet at certain inclination angle made by this spoke.For the rainwater under preventing from vertically falling or tilt to waft enters in motor body, this gas port is inner high outside low angling hole.
Claims (5)
1. the rainproof external-rotor DC. brush-less that certainly dispels the heat, comprise the upper cover and lower cover that are fixedly connected with motor shaft, rotor is fixedly installed between this upper cover and lower cover, it is characterized in that, this covers and offers multiple gas port be obliquely installed, the inner side of this lower cover is provided with the spoke distributed radially centered by motor shaft, between each spoke, air admission hole is set, when motor shaft drives upper cover, when rotor and lower cover rotate together, the cool exterior air entered from air admission hole is blowed to the inner chamber of this motor by spoke that lower cover internal fixtion turns to constantly, discharged by gas port after arriving upper cover.
2. according to claim 1 rainproof from dispelling the heat external-rotor DC. brush-less, it is characterized in that, fan leaf sheet made by this spoke.
3. the rainproof external-rotor DC. brush-less that certainly dispels the heat according to claim 1, it is characterized in that, when motor shaft uses perpendicular to ground, and upper cover is when upper, and this gas port is inner high outside low angling hole.
4. according to claim 1 rainproof from dispelling the heat external-rotor DC. brush-less, it is characterized in that, this gas port is arranged on the sidewall of this enclosing cover.
5. according to claim 1 rainproof from dispelling the heat external-rotor DC. brush-less, it is characterized in that, this gas port is arranged on the roof of this enclosing cover.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410653651.0A CN104300736A (en) | 2014-11-18 | 2014-11-18 | Rainproof self-radiating external-rotor direct current brushless motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410653651.0A CN104300736A (en) | 2014-11-18 | 2014-11-18 | Rainproof self-radiating external-rotor direct current brushless motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104300736A true CN104300736A (en) | 2015-01-21 |
Family
ID=52320359
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410653651.0A Pending CN104300736A (en) | 2014-11-18 | 2014-11-18 | Rainproof self-radiating external-rotor direct current brushless motor |
Country Status (1)
| Country | Link |
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| CN (1) | CN104300736A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104716780A (en) * | 2015-03-30 | 2015-06-17 | 徐文章 | Hole impeller and air supply heat-sink cooling mode thereof |
| CN106787366A (en) * | 2017-01-13 | 2017-05-31 | 佛山市威灵洗涤电机制造有限公司 | Motor and washing machine |
| CN107528438A (en) * | 2017-10-19 | 2017-12-29 | 江西南磁电气有限公司 | A kind of cooling totally enclosed type asynchronous machine certainly |
| CN113994942A (en) * | 2021-09-26 | 2022-02-01 | 云南省农业科学院蚕桑蜜蜂研究所 | Method and device for controlling ants in bee field |
| CN114243995A (en) * | 2021-11-09 | 2022-03-25 | 安徽孟凌精密电子有限公司 | Energizing system for accurately controlling brushless motor |
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| JPS56129548A (en) * | 1980-03-12 | 1981-10-09 | Toshiba Corp | Bearing bracket for rotary electric machine |
| JP2003009456A (en) * | 2001-06-25 | 2003-01-10 | Asmo Co Ltd | Cooling structure of motor |
| CN1574559A (en) * | 2003-06-11 | 2005-02-02 | 亨特风扇公司 | Ceiling fan motors |
| CN101180782A (en) * | 2005-05-25 | 2008-05-14 | 株式会社美姿把 | Electric motor and method of producing electric motor |
| JP2008154369A (en) * | 2006-12-18 | 2008-07-03 | Matsushita Electric Ind Co Ltd | Outer rotor type motor |
| CN101911441A (en) * | 2008-04-03 | 2010-12-08 | 田瑜 | A brushless DC motor and a radiator thereof |
| CN202889108U (en) * | 2012-10-17 | 2013-04-17 | 东明机电（深圳）有限公司 | Direct current micro-motor equipped with cylindrical housing and capable of improving ventilation |
| CN103208765A (en) * | 2013-03-19 | 2013-07-17 | 启东沃玛力电器辅件有限公司 | Improved fire-proof bus duct |
| CN204156670U (en) * | 2014-11-18 | 2015-02-11 | 李剑川 | Rainproof from dispelling the heat external-rotor DC. brush-less |
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2014
- 2014-11-18 CN CN201410653651.0A patent/CN104300736A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS56129548A (en) * | 1980-03-12 | 1981-10-09 | Toshiba Corp | Bearing bracket for rotary electric machine |
| JP2003009456A (en) * | 2001-06-25 | 2003-01-10 | Asmo Co Ltd | Cooling structure of motor |
| CN1574559A (en) * | 2003-06-11 | 2005-02-02 | 亨特风扇公司 | Ceiling fan motors |
| CN101180782A (en) * | 2005-05-25 | 2008-05-14 | 株式会社美姿把 | Electric motor and method of producing electric motor |
| JP2008154369A (en) * | 2006-12-18 | 2008-07-03 | Matsushita Electric Ind Co Ltd | Outer rotor type motor |
| CN101911441A (en) * | 2008-04-03 | 2010-12-08 | 田瑜 | A brushless DC motor and a radiator thereof |
| CN202889108U (en) * | 2012-10-17 | 2013-04-17 | 东明机电（深圳）有限公司 | Direct current micro-motor equipped with cylindrical housing and capable of improving ventilation |
| CN103208765A (en) * | 2013-03-19 | 2013-07-17 | 启东沃玛力电器辅件有限公司 | Improved fire-proof bus duct |
| CN204156670U (en) * | 2014-11-18 | 2015-02-11 | 李剑川 | Rainproof from dispelling the heat external-rotor DC. brush-less |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104716780A (en) * | 2015-03-30 | 2015-06-17 | 徐文章 | Hole impeller and air supply heat-sink cooling mode thereof |
| CN106787366A (en) * | 2017-01-13 | 2017-05-31 | 佛山市威灵洗涤电机制造有限公司 | Motor and washing machine |
| CN107528438A (en) * | 2017-10-19 | 2017-12-29 | 江西南磁电气有限公司 | A kind of cooling totally enclosed type asynchronous machine certainly |
| CN113994942A (en) * | 2021-09-26 | 2022-02-01 | 云南省农业科学院蚕桑蜜蜂研究所 | Method and device for controlling ants in bee field |
| CN114243995A (en) * | 2021-11-09 | 2022-03-25 | 安徽孟凌精密电子有限公司 | Energizing system for accurately controlling brushless motor |
| CN114243995B (en) * | 2021-11-09 | 2023-11-21 | 安徽孟凌精密电子有限公司 | Power-on system for precisely controlling brushless motor |
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20150121 |
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| RJ01 | Rejection of invention patent application after publication |