CN204179910U - A kind of electric tool brushless motor structure - Google Patents

A kind of electric tool brushless motor structure Download PDF

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Publication number
CN204179910U
CN204179910U CN201420664118.XU CN201420664118U CN204179910U CN 204179910 U CN204179910 U CN 204179910U CN 201420664118 U CN201420664118 U CN 201420664118U CN 204179910 U CN204179910 U CN 204179910U
Authority
CN
China
Prior art keywords
housing
stator
output shaft
coil
magnet ring
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
CN201420664118.XU
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Chinese (zh)
Inventor
徐雪峰
卢韬
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.)
Ningbo Jiemei Import & Export Co Ltd
Original Assignee
Ningbo Jiemei Import & Export Co Ltd
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 Ningbo Jiemei Import & Export Co Ltd filed Critical Ningbo Jiemei Import & Export Co Ltd
Priority to CN201420664118.XU priority Critical patent/CN204179910U/en
Application granted granted Critical
Publication of CN204179910U publication Critical patent/CN204179910U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The utility model relates to a kind of electric tool brushless motor structure, comprises stator, output shaft, coil and magnet ring, characterized by further comprising housing, and two end faces relative on housing are respectively equipped with clutch shaft bearing and the second bearing; Be arranged on the stator support in housing, output shaft is located in the centre bore of stator support; Stator is arranged on stator support, has multipair salient pole; Coil winding is on the salient pole of correspondence, and described magnet ring can be set in outside described coil and described stator rotationally; The long anchor ring of cover body is set in outside magnet ring, and rotates with magnet ring, has gap between described long anchor ring and the madial wall of described housing; Described becate face is fixedly connected on described output shaft.The utility model, owing to being provided with housing, being easily installed in electric tool and using, can not disturb by the transmission component in housing of electric tool; And motor noise is little, long service life, and outer-rotor structure energy consumption is low, moment large, and energy conservation and consumption reduction effects is obvious.

Description

A kind of electric tool brushless motor structure
Technical field
The utility model relates to a kind of electric tool brushless motor structure.
Background technology
Existing electric tool is owing to passing through electric machine main shaft power output, thus the working head work of driving electric instrument, the motor therefore used in electric tool is all inner rotor motor usually.But progression is few, rotating speed is high, torque is little shortcoming that inner rotor motor has, relative power consumption is larger.Further, existing electric-tool machine also has the problems such as operating noise is large, useful life is short.
In order to solve the problem, also someone is provided with and uses external rotor electric machine in electric tool, but because external rotor electric machine carrys out outputting power by the rotation of shell, and be not suitable for, directly as electric tool drive motors, needing to make further improvements.
Summary of the invention
Technical problem to be solved in the utility model provides one can adaptive electric tool operating speed electric tool brushless motor structure for the present situation of prior art, thus the object reaching energy efficient, reduce operating noise, extend motor useful life.
The utility model solves the problems of the technologies described above adopted technical scheme: this electric tool brushless motor structure, comprises stator, output shaft, coil and magnet ring, characterized by further comprising:
Housing, for other parts of accommodating brushless electric machine; Two end faces relative on housing are respectively equipped with the first connector and the second connector, described first connector and the second connector are respectively equipped with clutch shaft bearing and the second bearing; One end bearing of described output shaft is arranged on described clutch shaft bearing, and the other end of described output shaft exposes outside housing through the second bearing;
Stator support, be arranged in described housing, output shaft is located in the centre bore of stator support;
Stator, is arranged on described stator support, has multipair salient pole;
Coil, has many groups, and be wrapped in respectively on corresponding multipair salient pole, coil two ends connect the positive and negative electrode of power supply respectively;
Described magnet ring can be set in outside described coil and described stator rotationally;
Cover body, is arranged in described housing, the connecting plate both having a long anchor ring and a becate face and being connected; Described long anchor ring is set in outside described magnet ring, and rotates with magnet ring, has gap between described long anchor ring and the madial wall of described housing; Described becate face is fixedly connected on described output shaft.
Preferably, described stator has three pairs of salient poles, and accordingly, described coil has three groups.
Compared with prior art, electric brushless electric machine structure provided by the utility model, owing to being provided with housing, being easily installed in electric tool and using, can not disturb by the transmission component in housing of electric tool; And motor noise is little, long service life, and outer-rotor structure energy consumption is low, moment large, and energy conservation and consumption reduction effects is obvious.
Accompanying drawing explanation
Fig. 1 is the longitudinal direction figure of the utility model embodiment assembly structure;
Fig. 2 is the transverse sectional view of the utility model embodiment.
Embodiment
Below in conjunction with accompanying drawing embodiment, the utility model is described in further detail.
As depicted in figs. 1 and 2, this electric tool brushless motor structure comprises:
Housing 1, for other parts of accommodating brushless electric machine; Two end faces relative on housing 1 are provided with on the first connector 11 and the second connector 12, first connector 11 and the second connector 12 and are respectively equipped with clutch shaft bearing 13 and the second bearing 14.
Output shaft 2, one end bearing of output shaft 2 is arranged on clutch shaft bearing 13, the other end of output shaft 2 exposes outside housing 1 through the second bearing 14, for power of motor is passed to transmission mechanism (not shown), is passed to the working head of electric tool by transmission mechanism.
Stator support 3, be arranged in housing 1, output shaft 2 is located in the centre bore of stator support 3.
Stator 7, is arranged on stator support 3, has six salient poles 71, and formation three is right.
Coil 4, has three groups, and be wrapped in respectively on three pairs of salient poles 71, coil two ends connect the positive and negative electrode of power supply respectively.
Magnet ring 5, being the rotor in the present embodiment, is permanent magnet, is set in outside coil 4 and stator support 3, and can rotate relative to stator support 3.
Cover body 6, is arranged in housing 1, and its cross section roughly in " U " shape structure, has a long anchor ring 61 and a becate face 62; Long anchor ring 61 is set in outside magnet ring 5, can rotate with magnet ring, and and between the madial wall of housing, there is gap; Becate face 62 is connected on output shaft 2.Magnet ring 5 passes torque to output shaft 2 by cover body 6.
The operation principle of this brushless electric machine is described below:
Coil obtain electric after produce magnetic field, drive magnet ring 5 rotate, magnet ring 5 drives output shaft to rotate together by cover body 6, passes torque to working head.
This electric-tool machine noise is little, long service life, and outer-rotor structure energy consumption is low, moment is large; Especially the design going out housing makes it conveniently be applied in electric tool, convenient installs, and can not disturb by the transmission component in housing of electric tool.

Claims (2)

1. an electric tool brushless motor structure, comprises stator (7), output shaft (2), coil (4) and magnet ring (5), characterized by further comprising:
Housing (1), for other parts of accommodating brushless electric machine; Upper two the relative end faces of housing (1) are respectively equipped with the first connector (11) and the second connector (12), described first connector (11) and the second connector (12) are respectively equipped with clutch shaft bearing (13) and the second bearing (14); One end bearing of described output shaft (2) is arranged on described clutch shaft bearing (13), and the other end of described output shaft (2) exposes outside housing (1) through the second bearing (14);
Stator support (3), be arranged in described housing (1), output shaft (2) is located in the centre bore of stator support (3);
Stator (7), is arranged on described stator support (3), has multipair salient pole (71);
Coil (4), has many groups, and be wrapped in respectively on corresponding multipair salient pole (71), coil two ends connect the positive and negative electrode of power supply respectively;
Described magnet ring (5) can be set in described coil (4) and described stator (7) outward rotationally;
Cover body (6), is arranged in described housing (1), the connecting plate (63) both having a long anchor ring (61) and a becate face (62) and being connected; Described long anchor ring (61) is set in described magnet ring (5) outside, and rotates with magnet ring (5), has gap between described long anchor ring and the madial wall of described housing; Described becate face (62) is fixedly connected on described output shaft (2).
2. electric tool brushless motor structure according to claim 1, it is characterized in that described stator (7) has three pairs of salient poles (71), accordingly, described coil has three groups.
CN201420664118.XU 2014-11-07 2014-11-07 A kind of electric tool brushless motor structure Expired - Fee Related CN204179910U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201420664118.XU CN204179910U (en) 2014-11-07 2014-11-07 A kind of electric tool brushless motor structure

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201420664118.XU CN204179910U (en) 2014-11-07 2014-11-07 A kind of electric tool brushless motor structure

Publications (1)

Publication Number Publication Date
CN204179910U true CN204179910U (en) 2015-02-25

Family

ID=52568684

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201420664118.XU Expired - Fee Related CN204179910U (en) 2014-11-07 2014-11-07 A kind of electric tool brushless motor structure

Country Status (1)

Country Link
CN (1) CN204179910U (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107979254A (en) * 2016-07-15 2018-05-01 苏州宝时得电动工具有限公司 A kind of motor and electric tool
CN108336838A (en) * 2017-01-20 2018-07-27 德昌电机(深圳)有限公司 Motor
CN109314440A (en) * 2016-06-17 2019-02-05 阿特拉斯·科普柯工业技术公司 Cooling device and method for power tool

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109314440A (en) * 2016-06-17 2019-02-05 阿特拉斯·科普柯工业技术公司 Cooling device and method for power tool
US10819185B2 (en) 2016-06-17 2020-10-27 Atlas Copco Industrial Technique Ab Cooling arrangement and method for power tool
CN109314440B (en) * 2016-06-17 2022-04-12 阿特拉斯·科普柯工业技术公司 Cooling apparatus and method for power tool
CN107979254A (en) * 2016-07-15 2018-05-01 苏州宝时得电动工具有限公司 A kind of motor and electric tool
CN108336838A (en) * 2017-01-20 2018-07-27 德昌电机(深圳)有限公司 Motor
US10714997B2 (en) 2017-01-20 2020-07-14 Johnson Electric International AG Outer rotor motor

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C14 Grant of patent or utility model
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20150225

Termination date: 20181107

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