CN204156670U - Rainproof from dispelling the heat external-rotor DC. brush-less - Google Patents

Rainproof from dispelling the heat external-rotor DC. brush-less Download PDF

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Publication number
CN204156670U
CN204156670U CN201420688859.1U CN201420688859U CN204156670U CN 204156670 U CN204156670 U CN 204156670U CN 201420688859 U CN201420688859 U CN 201420688859U CN 204156670 U CN204156670 U CN 204156670U
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CN
China
Prior art keywords
rotor
lower cover
motor
upper cover
rainproof
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 - Fee Related
Application number
CN201420688859.1U
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Chinese (zh)
Inventor
李剑川
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Changsha central wing day Intelligent Equipment Technology Co., Ltd.
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李剑川
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by 李剑川 filed Critical 李剑川
Priority to CN201420688859.1U priority Critical patent/CN204156670U/en
Application granted granted Critical
Publication of CN204156670U publication Critical patent/CN204156670U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

A kind of rainproof from dispelling the heat external-rotor DC. brush-less, 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, 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, rotor and lower cover to 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, is discharged after arriving upper cover by gas port.The state that the motor shaft that the utility model is mainly used in model plane class motor is applied perpendicular to horizontal plane.The utility model, by improvement to the casing frame structure of external rotor electric machine, realizes rainproof airtight with motor automatic air guide fan cooling from bottom to up, play cold air flow fast in motor body cooling, improve the effect of electric efficiency.

Description

Rainproof from dispelling the heat external-rotor DC. brush-less
Technical field
The utility model relates to a kind of DC brushless motor, and 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.
Utility model content
Technical problem to be solved in the utility model is, rain-proof structure is not had for existing model plane motor, heat up under big current too fast, affect the technical deficiencies such as electric efficiency, a kind of rainproof external-rotor DC. brush-less that certainly dispels the heat for air materials such as gyroplanes is provided.
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 utility model, 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, it is rainproof from dispelling the heat external-rotor DC. brush-less that the utility model provides, 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 utility model 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 utility model has is:
1. the utility model can be lowered the temperature by automatic heat radiation, thus protection coil does not burn out, and improves the efficiency of motor;
2. the utility model can be rainproof.
Accompanying drawing explanation
Fig. 1 is the rainproof structural representation from heat radiation external-rotor DC. brush-less of the utility model.
Fig. 2 is the utility model lower cover cross-sectional view.
Fig. 3 is the utility model lower cover plan structure schematic diagram.
Fig. 4 is the utility model superstructure cross-sectional schematic.
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 utility model 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.
CN201420688859.1U 2014-11-18 2014-11-18 Rainproof from dispelling the heat external-rotor DC. brush-less Expired - Fee Related CN204156670U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201420688859.1U CN204156670U (en) 2014-11-18 2014-11-18 Rainproof from dispelling the heat external-rotor DC. brush-less

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201420688859.1U CN204156670U (en) 2014-11-18 2014-11-18 Rainproof from dispelling the heat external-rotor DC. brush-less

Publications (1)

Publication Number Publication Date
CN204156670U true CN204156670U (en) 2015-02-11

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN201420688859.1U Expired - Fee Related CN204156670U (en) 2014-11-18 2014-11-18 Rainproof from dispelling the heat external-rotor DC. brush-less

Country Status (1)

Country Link
CN (1) CN204156670U (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104300736A (en) * 2014-11-18 2015-01-21 李剑川 Rainproof self-radiating external-rotor direct current brushless motor
CN106602749A (en) * 2016-12-30 2017-04-26 常州朗奇威电器有限公司 Outer rotor DC motor
CN108001660A (en) * 2017-12-14 2018-05-08 北京臻迪科技股份有限公司 Underwater power pack containing centrifugation radiator

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104300736A (en) * 2014-11-18 2015-01-21 李剑川 Rainproof self-radiating external-rotor direct current brushless motor
CN106602749A (en) * 2016-12-30 2017-04-26 常州朗奇威电器有限公司 Outer rotor DC motor
CN108001660A (en) * 2017-12-14 2018-05-08 北京臻迪科技股份有限公司 Underwater power pack containing centrifugation radiator

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Legal Events

Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
TR01 Transfer of patent right

Effective date of registration: 20181213

Address after: 410000 Depp five, No. 1, screw Road, Changsha economic and Technological Development Zone, Hunan Province, and 6 block D 109-2 of the enterprise park.

Patentee after: Changsha central wing day Intelligent Equipment Technology Co., Ltd.

Address before: 410073 Deya Road, Kaifu District, Changsha, Hunan Province, No. 109

Patentee before: Li Jianchuan

TR01 Transfer of patent right
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20150211

Termination date: 20201118

CF01 Termination of patent right due to non-payment of annual fee