CN208835862U - A kind of electric clippers electric tool permanent-magnet DC brushless external rotor electric machine - Google Patents
A kind of electric clippers electric tool permanent-magnet DC brushless external rotor electric machine Download PDFInfo
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- CN208835862U CN208835862U CN201821620506.2U CN201821620506U CN208835862U CN 208835862 U CN208835862 U CN 208835862U CN 201821620506 U CN201821620506 U CN 201821620506U CN 208835862 U CN208835862 U CN 208835862U
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Abstract
The utility model relates to a kind of electric clippers electric tool permanent-magnet DC brushless external rotor electric machines, including stator module, rotor assembly and mounting assembly, the stator module is inserted into the rotor assembly, and the stator module and the rotor assembly are sliding connections, and assembling process is simple and efficient；The stator module includes stator core, stator support, axis and two bearings, it is interference fit connection between the stator core and stator support, after the stator core is packed into stator support, one bearing is respectively installed in the stator support rear and front end, the bearing is used for the support and rotation of axis；The rotor assembly includes fan blade, rotor casing and magnetic shoe, is interference fit connection between the fan blade and rotor casing, while also ensuring axial displacement；The mounting assembly includes lordosis bracket.The many advantages such as this practical new collection automatic heat radiation, safe and reliable, quick-replaceable, easy to maintenance, miniaturization, lightness, it is practical, there is good market application prospect.
Description
Technical field
The utility model relates to electric tool motor field more particularly to a kind of electric clippers electric tool Permanent magnet DC without
Brush external rotor electric machine.
Background technique
With the discovery of rare earth permanent-magnetic material, possibility is become as motor excitation using NdFeB material.Neodymium iron boron is made
For one kind of rare earth permanent-magnetic material, there is high magnetic energy product and coercivity, at the same have high-energy density the advantages of make neodymium
Iron B permanent magnetic material is applied widely in modern industry and electronic technology, to make instrument and meter, electroacoustic motor, magnetic separation
Miniaturization, lightweight, the slimming of the equipment such as magnetization are possibly realized.
Electric clippers is gradually moved to maturity with permanent-magnet DC brushless external rotor electric machine technology, and starts volume production, moves towards thousand ten thousand
Family.Critical component of the motor as electric clippers electric tool is its main power resources.Its setting will not only consider motor
Structure distribution, it is contemplated that electric scissors the Knife tool is under different operating environment and various working, ability to bear, the reliability of motor
And the problems such as safety.
Traditional electric clippers motor only considers the performance and installation of motor in setting, is not directed to motor at work
Heat dissipation, lightweight, miniaturization and the case where quick-replaceable, mainly using brush motor or using in permanent-magnet DC brushless
Rotor electric machine, and use the seldom of permanent-magnet DC brushless external rotor electric machine.
Summary of the invention
To the problems of the prior art, the utility model provides a kind of lightweight, miniaturization, good heat dissipation, can be changed quickly
, and the multifunctional integrated electric clippers electric tool permanent-magnet DC brushless external rotor electric machine that motor is easy to repair.
In order to solve the above problem, the solution of the utility model is a kind of electric clippers electric tool permanent-magnet DC brushless
External rotor electric machine, including stator module, rotor assembly and mounting assembly, the stator module is inserted into the rotor assembly, described
Stator module and the rotor assembly are sliding connections；
The stator module includes stator core, stator support, axis and two bearings, the stator core and stator support
Between be that interference fit connection respectively installs one in the stator support rear and front end after the stator core is packed into stator support
A bearing, the bearing are used for the support and rotation of axis；
The rotor assembly includes fan blade, rotor casing and magnetic shoe, is interference fit between the fan blade and rotor casing
Connection, while also ensuring axial displacement；
The mounting assembly includes lordosis bracket and circlip.
As an improvement, further including retainer ring, the retainer ring is used to after the stator module is inserted into the rotor assembly withstand
Stator core, to limit the movement of the stator core axial direction.
As a further improvement, it is also provided with two circlip positions on the shaft, after circlip is installed on a circlip position
It is used to limit between lordosis bracket and fan blade after circlip is installed for limiting the axial displacement of stator module, on another circlip position
Distance, guarantee that fan blade and lordosis bracket will not contact, do not influence the work of fan blade.
As a further improvement, be additionally provided on the lordosis bracket several protrusion muscle, the protrusion muscle with it is electronic
The detent connection being arranged in tool complete machine, facilitates hand disassembly and installation.
As a further improvement, it is also provided with the threaded hole A of 4 M3 on the lordosis bracket, is also set up on the axis
There is flat filament position, the threaded hole A and flat filament position are connect with electric tool complete machine.
As a further improvement, 14 magnetic slots are provided in the fan blade, for installing the magnetic shoe, the magnet steel
Slot is rectangle for fixing magnetic shoe, the magnetic shoe.
As a further improvement, 11 blades are also provided on the fan blade.
As a further improvement, the threaded hole B of 4 M3 is provided on the stator support, for the test of motor,
Convenient for being fixed with electric clippers electric tool complete machine.
As a further improvement, 4 outlet holes are provided on the stator support, for the outlet of motor triple line,
In the assembly of motor, one of outlet hole can be randomly choosed as outgoing line position, excess-three outlet hole is for radiating.
As a further improvement, the rotor casing diameter is 30mm.
From the above, it can be seen that the utility model has the advantage that collection automatic heat radiation, safe and reliable, quickly more
It changes, is easy to maintenance, miniaturization, many advantages such as lightness, it is practical, there is good market application prospect.
Detailed description of the invention
Fig. 1 is the assembling schematic diagram of the utility model；
Fig. 2 is the perspective view of the explosion of the utility model；
Fig. 3 is the stereoscopic schematic diagram 1 of the utility model；
Fig. 4 is the stereoscopic schematic diagram 2 of the utility model；
Fig. 5 is the structural schematic diagram of the utility model stator support；
Fig. 6 is the structural schematic diagram of the utility model stator core；
Fig. 7 is the structural schematic diagram of the utility model fan blade；
Fig. 8 is the structural schematic diagram of the utility model lordosis bracket；
Fig. 9 is the structural schematic diagram of the utility model axis；
Figure 10 is the structural schematic diagram of the utility model bearing；
Figure 11 is the structural schematic diagram of the utility model rotor case；
Figure 12 is the structural schematic diagram of the utility model magnetic shoe；
Appended drawing reference: 1, stator module, 2, rotor assembly, 3, mounting assembly, 4, stator core, 5, stator support, 6, axis,
7, bearing, 8, retainer ring, 9, fan blade, 10, rotor casing, 11, magnetic shoe, 12, lordosis bracket, 13, protrusion muscle, 14, circlip position, 15,
Threaded hole A, 16, flat filament position, 17, outlet hole, 18, threaded hole B, 19, blade, 20, circlip.
Specific embodiment
In conjunction with Fig. 1-Figure 12, first specific embodiment of the utility model is described in detail, but not to the utility model
Claim does any restriction.
As shown in Fig. 1-Fig. 7, a kind of electric clippers electric tool permanent-magnet DC brushless external rotor electric machine, including stator module
1, rotor assembly 2 and mounting assembly 3, the stator module 1 are inserted into the rotor assembly 2, the stator module 1 and the rotor
Component 2 is sliding connection；
The stator module 1 includes stator core 4, stator support 5, axis 6 and two bearings 7, the stator core 4 and fixed
It is interference fit connection between submounts 5, after the stator core 4 is packed into stator support 5, in 5 front and back two of stator support
One bearing 7 of each installation is held, the bearing 7 is used for the support and rotation of axis 6；
The rotor assembly 2 includes fan blade 9, rotor casing 10 and magnetic shoe 11, is between the fan blade 9 and rotor casing 10
Interference fit connection, while also ensuring axial displacement；
The mounting assembly includes lordosis bracket 12 and circlip 20.
More specifically, further including retainer ring 8, the retainer ring 8 is used for after the stator module 1 is inserted into the rotor assembly 2
Stator core 4 is withstood, to limit the axial movement of the stator core 4.
More specifically, being also provided with two circlip positions 14 on the axis 6, used after circlip 20 is installed on a circlip position 14
The axial displacement of stator module 1 is limited, is used to limit lordosis bracket 12 and wind after circlip 20 is installed on another circlip position 14
The distance between leaf 7 guarantees that fan blade 9 and lordosis bracket 12 will not contact, does not influence the work of fan blade.
More specifically, being additionally provided with several protrusion muscle 13, the protrusion muscle 13 and electronic work on the lordosis bracket 12
The detent connection being arranged in tool complete machine, facilitates hand disassembly and installation.
More specifically, being also provided with the threaded hole A15 of 4 M3 on the lordosis bracket 12, it is additionally provided on the axis 6 flat
Silk position 16, the threaded hole A15 and flat filament position 16 are connect with electric tool complete machine.
More specifically, being provided with 14 magnetic slots in the fan blade 7, for installing the magnetic shoe 11, the magnetic slot is used
In fixed magnetic shoe 11, the magnetic shoe 11 is rectangle.
More specifically, being also provided with 11 blades 19 on the fan blade 7.
More specifically, the threaded hole B18 on the stator support 5 provided with 4 M3 is also convenient for for the test of motor
It is fixed with electric clippers electric tool complete machine.
More specifically, 4 outlet holes 17 are provided on the stator support 5, for the outlet of motor triple line, in motor
Assembly in, one of outlet hole can be randomly choosed as outgoing line position, excess-three outlet hole is for radiating.
More specifically, 10 diameter of rotor casing is 30mm.
The application motor can be by magnetic shoe using the rigid scheme of more number of pole-pairs magnetic using the electromagnetic scheme of 12 slot, 14 pole
Rectangular form greatly reduces into the cost of production since NdFeB material price is higher.
Its outer rotor casing diameter only has 30mm, saves the sky that electric clippers electric-tool machine occupies in complete machine
Between, while the main screw lift of electric scissors the Knife tool is reduced, comply with the trend that current production develops lightness and miniaturization.
In terms of motor performance, acrotorque has reached 400mN.m, can bear the electric current of 15A, and rated power reaches
250W, no-load speed 13102rpm, peak efficiency are substantially better than the inner rotor motor of same type on 80% or more, performance, but
It is that cost and occupied space significantly reduce.
In conclusion the utility model collection automatic heat radiation, safe and reliable, quick-replaceable, easy to maintenance, miniaturization, light-duty
The many advantages such as change, it is practical, there is good market application prospect.
It is understood that being merely to illustrate the utility model above with respect to the specific descriptions of the utility model and not being
It is limited to technical solution described in the utility model embodiment, those skilled in the art should understand that, it is not departing from
It in the case where spirit and scope defined by claim, can modify to the utility model or equivalent replacement, to reach
Identical technical effect, but be within the protection scope of the utility model.
Claims (10)
1. a kind of electric clippers electric tool permanent-magnet DC brushless external rotor electric machine, it is characterised in that: including stator module (1),
Rotor assembly (2) and mounting assembly (3), the stator module (1) are inserted into the rotor assembly (2), the stator module (1) with
The rotor assembly (2) is sliding connection；
The stator module (1) includes stator core (4), stator support (5), axis (6) and two bearings (7), the stator iron
It is interference fit connection between core (4) and stator support (5), after the stator core (4) is packed into stator support (5), described
A bearing (7) is respectively installed in stator support (5) rear and front end, and the bearing (7) is used for the support and rotation of axis (6)；
The rotor assembly (2) includes fan blade (9), rotor casing (10) and magnetic shoe (11), the fan blade (9) and rotor casing
(10) it is interference fit connection between, while also ensures axial displacement；
The mounting assembly includes lordosis bracket (12) and circlip (20).
2. electric clippers electric tool permanent-magnet DC brushless external rotor electric machine according to claim 1, it is characterised in that: also
Including retainer ring (8), the retainer ring (8) is used to withstand stator core after the stator module (1) is inserted into the rotor assembly (2)
(4), to limit the movement of the stator core (4) axial direction.
3. electric clippers electric tool permanent-magnet DC brushless external rotor electric machine according to claim 2, it is characterised in that:
Two circlip positions (14) are also provided on the axis (6), installation circlip (20) is used to limit stator afterwards on a circlip position (14)
The axial displacement of component (1), installation circlip (20) is used to limit lordosis bracket (12) and fan blade afterwards on another circlip position (14)
The distance between (9), guarantee that fan blade (9) and lordosis bracket (12) will not contact, does not influence the work of fan blade.
4. electric clippers electric tool permanent-magnet DC brushless external rotor electric machine according to claim 3, it is characterised in that: institute
It states and is additionally provided with several protrusions muscle (13) on lordosis bracket (12), be arranged on protrusion muscle (13) and electric tool complete machine
Detent connection, facilitates hand disassembly and installation.
5. electric clippers electric tool permanent-magnet DC brushless external rotor electric machine according to claim 4, it is characterised in that: institute
The threaded hole A (15) for being also provided with 4 M3 on lordosis bracket (12) is stated, is additionally provided with flat filament position (16) on the axis (6), it is described
Threaded hole A (15) and flat filament position (16) are connect with electric tool complete machine.
6. electric clippers electric tool permanent-magnet DC brushless external rotor electric machine according to claim 5, it is characterised in that: institute
It states and is provided with 14 magnetic slots in fan blade (9), for installing the magnetic shoe (11), the magnetic slot is used to fix magnetic shoe (11),
The magnetic shoe (11) is rectangle.
7. electric clippers electric tool permanent-magnet DC brushless external rotor electric machine according to claim 6, it is characterised in that: institute
It states and is also provided with 11 blades (19) on fan blade (9).
8. electric clippers electric tool permanent-magnet DC brushless external rotor electric machine according to claim 7, it is characterised in that: institute
The threaded hole B (18) on stator support (5) provided with 4 M3 is stated to be also convenient for and electric clippers electric tool for the test of motor
Complete machine is fixed.
9. electric clippers electric tool permanent-magnet DC brushless external rotor electric machine according to claim 8, it is characterised in that: institute
It states and is provided with 4 outlet holes (17), the outlet for motor triple line on stator support (5).
10. electric clippers electric tool permanent-magnet DC brushless external rotor electric machine according to claim 9, it is characterised in that:
Rotor casing (10) diameter is 30mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821620506.2U CN208835862U (en) | 2018-09-30 | 2018-09-30 | A kind of electric clippers electric tool permanent-magnet DC brushless external rotor electric machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821620506.2U CN208835862U (en) | 2018-09-30 | 2018-09-30 | A kind of electric clippers electric tool permanent-magnet DC brushless external rotor electric machine |
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| Publication Number | Publication Date |
|---|---|
| CN208835862U true CN208835862U (en) | 2019-05-07 |
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ID=66317246
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821620506.2U Active CN208835862U (en) | 2018-09-30 | 2018-09-30 | A kind of electric clippers electric tool permanent-magnet DC brushless external rotor electric machine |
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| Country | Link |
|---|---|
| CN (1) | CN208835862U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110492631A (en) * | 2019-08-22 | 2019-11-22 | 沈阳兴华航空电器有限责任公司 | A kind of Wind Volume three-phase brushless DC fan |
| CN111293792A (en) * | 2019-10-14 | 2020-06-16 | 天津深之蓝海洋设备科技有限公司 | Motor, propeller and submersible |
| CN113422488A (en) * | 2021-07-31 | 2021-09-21 | 佛山市南海区绿智电机设备有限公司 | Direct-current outer rotor motor for electric scissors, accessories and electric scissors |
-
2018
- 2018-09-30 CN CN201821620506.2U patent/CN208835862U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110492631A (en) * | 2019-08-22 | 2019-11-22 | 沈阳兴华航空电器有限责任公司 | A kind of Wind Volume three-phase brushless DC fan |
| CN111293792A (en) * | 2019-10-14 | 2020-06-16 | 天津深之蓝海洋设备科技有限公司 | Motor, propeller and submersible |
| CN111293792B (en) * | 2019-10-14 | 2021-01-05 | 天津深之蓝海洋设备科技有限公司 | Motor, propeller and submersible |
| CN113422488A (en) * | 2021-07-31 | 2021-09-21 | 佛山市南海区绿智电机设备有限公司 | Direct-current outer rotor motor for electric scissors, accessories and electric scissors |
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