CN106602749A - Outer rotor DC motor - Google Patents
Outer rotor DC motor Download PDFInfo
- Publication number
- CN106602749A CN106602749A CN201611257567.2A CN201611257567A CN106602749A CN 106602749 A CN106602749 A CN 106602749A CN 201611257567 A CN201611257567 A CN 201611257567A CN 106602749 A CN106602749 A CN 106602749A
- Authority
- CN
- China
- Prior art keywords
- rotating shaft
- stator
- rotor
- motor
- stator core
- 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.)
- Pending
Links
- 238000004804 winding Methods 0.000 claims abstract description 15
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 abstract description 6
- 238000000034 method Methods 0.000 abstract description 2
- 229910000838 Al alloy Inorganic materials 0.000 abstract 1
- 230000003247 decreasing effect Effects 0.000 abstract 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 7
- 229910052782 aluminium Inorganic materials 0.000 description 7
- 239000000956 alloy Substances 0.000 description 5
- 229910045601 alloy Inorganic materials 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 3
- 238000007654 immersion Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 239000004411 aluminium Substances 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 229920001187 thermosetting polymer Polymers 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K1/00—Details of the magnetic circuit
- H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
- H02K1/12—Stationary parts of the magnetic circuit
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K1/00—Details of the magnetic circuit
- H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
- H02K1/22—Rotating parts of the magnetic circuit
- H02K1/27—Rotor cores with permanent magnets
- H02K1/2786—Outer rotors
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
- H02K5/16—Means for supporting bearings, e.g. insulating supports or means for fitting bearings in the bearing-shields
- H02K5/161—Means for supporting bearings, e.g. insulating supports or means for fitting bearings in the bearing-shields radially supporting the rotary shaft at both ends of the rotor
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Iron Core Of Rotating Electric Machines (AREA)
Abstract
The invention provides an outer rotor DC motor, which comprises a stator, a rotor and a rotating shaft, wherein the stator comprises a stator core and a coil winding, the coil winding is wound on the stator core, a centre hole is formed in the stator core, a bearing is arranged in the centre hole, the rotating shaft is matched with an inner ring of the bearing, the rotor comprises a permanent magnetic ring, the permanent magnetic ring is arranged on the periphery of the stator core, the tail end of the permanent magnetic ring is used for being fixedly connected with a load, the rotating shaft and the permanent magnetic ring are coaxial, and the tail end of the rotating shaft is used for being fixedly connected with the load. The outer rotor DC motor drives the load to rotate through directly fixing the rotor to the load instead of driving the load to rotate by means of the rotating shaft, and the rotor is not required to be fixed with the rotating shaft anymore, thus an aluminum alloy outer shell in the prior art is cancelled, the impedance is reduced, the efficiency of the motor is improved, the production and processing of the outer shell is not required, and the outer shell does not need to be fixed to the permanent magnetic ring, thereby reducing the production procedures, and decreasing the production cost.
Description
Technical field
The present invention relates to technical field of motors, more particularly to a kind of outer rotor DC motor.
Background technology
Motor is one of various electronic product essential elements, and wherein external rotor electric machine has compact conformation, stock utilization
High advantage, is widely used in the fields such as exhaust equipment, air-conditioner set, air cleaning system and cooling device.
Outer rotor DC motor generally comprises stator component, rotor part and rotating shaft, and described rotor part is sleeved on fixed
The outside of subassembly, rotor portion includes shell and permanent-magnetic clamp, and one end of rotating shaft is fixed with shell and is fixedly connected with load, institute
The stator component stated includes stator core, coil windings, and coil windings are wound on stator core, and this outer rotor DC motor is
Ensure the bonding strength between rotor and rotating shaft, shell uses alloy aluminum, and the aluminium purity in alloy aluminum is relatively low, impedance
Greatly, the efficiency of motor can be affected.
The content of the invention
The technical problem to be solved in the present invention is：Outer rotor DC motor is in order to ensure rotor in order to solve prior art
Bonding strength between rotating shaft, the shell of rotor uses alloy aluminum, and the aluminium purity in alloy aluminum is relatively low, and impedance is big, meeting
The problem of the efficiency of motor is affected, the invention provides a kind of outer rotor DC motor is solving the above problems.
The technical solution adopted for the present invention to solve the technical problems is：A kind of outer rotor DC motor, including stator, turn
Son and rotating shaft, the stator includes stator core and coil windings, and the coil windings are wound on the stator core, described fixed
Sub- iron core has centre bore, and bearing is provided with the centre bore, and the rotating shaft coordinates with the inner ring of bearing, and the rotor includes
Permanent-magnetic clamp, the permanent-magnetic clamp is located at the periphery of the stator core, and the tail end of the permanent-magnetic clamp is used to be fixedly connected with load, institute
State that rotating shaft is coaxial with permanent-magnetic clamp and its tail end is used to be fixedly connected with load.
Preferably, having two bearing chambers in the centre bore, two bearings are separately fixed at two axles
In holding room, the inner ring of the outer wall of the rotating shaft and two bearings coordinates.
Preferably, the stator also includes insulating body, the stator core and the coil windings immersion insulation master
In body, the teeth portion of the stator core is exposed on the side wall of the insulating body, and the centre bore and bearing chamber are molded over institute
State on insulating body.
Preferably, the stator also includes control panel, the insulating body includes the body portion of integrative-structure and shoulder, institute
The external diameter that shoulder is more than body portion positioned at the head end in body portion and the external diameter of the shoulder is stated, the control panel immerses the shoulder
In.
Preferably, the outer wall in the body portion forms the recess of radial depressions by near caudal end part, for being connected with load.
The invention has the beneficial effects as follows, this outer rotor DC motor come driving load by rotating shaft due to being turned
It is dynamic, but it is directly fixed with load come driving load rotation by rotor, rotor is not fixed in needs with rotating shaft, therefore will be existing
Alloy aluminum shell in technology is canceled, and reduces impedance, improves the efficiency of motor, and need not produce and process shell,
Shell need not be fixed with permanent-magnetic clamp, reduce production process, reduce production cost.
Description of the drawings
With reference to the accompanying drawings and examples the present invention is further described.
Fig. 1 is the structural representation that a kind of optimum embodiment of outer rotor DC motor of the present invention is combined with load.
1, stator core in figure, 2, coil windings, 3, centre bore, 4, bearing, 5, rotating shaft, 6, permanent-magnetic clamp, 7, load, 8, control
Making sheet, 9, body portion, 10, shoulder.
Specific embodiment
Embodiments of the invention are described below in detail, the example of the embodiment is shown in the drawings, wherein from start to finish
Same or similar label represents same or similar element or the element with same or like function.Below with reference to attached
The embodiment of figure description is exemplary, is only used for explaining the present invention, and is not considered as limiting the invention.Conversely, this
Inventive embodiment includes all changes fallen in the range of the spirit and intension of attached claims, modification and is equal to
Thing.
In describing the invention, it is to be understood that term " " center ", " longitudinal direction ", " horizontal ", " length ", " width ",
" thickness ", " on ", D score, "front", "rear", "left", "right", " vertical ", " level ", " top ", " bottom " " interior ", " outward ", " axial direction ",
The orientation or position relationship of the instructions such as " radial direction ", " circumference " is based on orientation shown in the drawings or position relationship, merely to just
In description the present invention and simplify description, rather than indicate or imply indication device or element must have specific orientation, with
Specific azimuth configuration and operation, therefore be not considered as limiting the invention.
Additionally, term " first ", " second " etc. are only used for describing purpose, and it is not intended that indicating or implying relatively important
Property.In describing the invention, it should be noted that unless otherwise clearly defined and limited, term " connected ", " connection " is answered
It is interpreted broadly, for example, it may be being fixedly connected, or being detachably connected, or is integrally connected；Can be that machinery connects
Connect, or electrically connect；Can be joined directly together, it is also possible to be indirectly connected to by intermediary.It is common for this area
For technical staff, above-mentioned term concrete meaning in the present invention can be understood with concrete condition.Additionally, in description of the invention
In, unless otherwise stated, " multiple " are meant that two or more.
As shown in figure 1, the invention provides a kind of outer rotor DC motor, including stator, rotor and rotating shaft 5, stator bag
Stator core 1 and coil windings 2 are included, coil windings 2 are wound on stator core 1, stator core 1 has centre bore 3, centre bore 3
In be provided with bearing 4, rotating shaft 5 coordinates with the inner ring of bearing 4, and rotor includes permanent-magnetic clamp 6, and permanent-magnetic clamp 6 is located at the outer of stator core 1
Week, the tail end of permanent-magnetic clamp 6 is used to be fixedly connected with load 7, and rotating shaft 5 is coaxial with permanent-magnetic clamp 6 and its tail end is used for and load 7
It is fixedly connected.Be provided with coaxial cannelure and cylindrical groove in load 7, in the embedded cannelure of tail end of permanent-magnetic clamp 6 and with it is negative
Carry 7 to fix, fix in the embedded cylindrical groove of tail end of rotating shaft 5 and with load 7, permanent-magnetic clamp 6 is coaxial with rotating shaft 5, and rotating shaft 5 and stator
Coaxially, then permanent-magnetic clamp 6 keeps coaxial as rotor and stator, when the rotational band dynamic load 7 of permanent-magnetic clamp 6 is rotated together, stator quilt
Rotating shaft 5 is positioned.
There are two Room of bearing 4, two bearings 4 are separately fixed in two Room of bearing 4, the outer wall of rotating shaft 5 in centre bore 3
Coordinate with the inner ring of two bearings 4；Stator also includes insulating body, in stator core 1 and the immersion insulating body of coil windings 2,
The teeth portion of stator core 1 is exposed on the side wall of insulating body, and centre bore 3 and the Room of bearing 4 are molded on insulating body, insulation master
Body includes the body portion 9 of integrative-structure and shoulder 10, and shoulder 10 is located at the head end in body portion 9 and the external diameter of shoulder 10 is more than body portion 9
External diameter, control panel 8 immersion shoulder 10 in；When manufacturing this stator, first coil windings 2 are wound on stator core 1, Ran Houan
Dress control panel 8, finally places them in mould, exhausted using BMC, BMC or other thermoplasticity, thermosetting
Edge material injection or die cast.
The outer wall in body portion 9 forms the recess of radial depressions by near caudal end part, and in load 7 the coaxial peace of cylindrical groove is provided with
Tankage, cylindrical groove is centrally positioned in mounting groove, in the notch part insertion mounting groove in body portion 9.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show
The description of example " or " some examples " etc. means to combine specific features, structure, material or spy that the embodiment or example are described
Point is contained at least one embodiment of the present invention or example.In this manual, to the schematic representation of the term not
Necessarily refer to identical embodiment or example.And, the specific features of description, structure, material or feature can be any
One or more embodiments or example in combine in an appropriate manner.
With the above-mentioned desirable embodiment according to the present invention as enlightenment, by above-mentioned description, relevant staff is complete
Entirely various change and modification can be carried out in the range of without departing from this invention technological thought.The technology of this invention
Property scope is not limited to the content on specification, it is necessary to its technical scope is determined according to right.
Claims (5)
1. a kind of outer rotor DC motor, including stator, rotor and rotating shaft, it is characterised in that：The stator includes stator core
And coil windings, the coil windings are wound on the stator core, and the stator core has centre bore, in the centre bore
Bearing is provided with, the rotating shaft coordinates with the inner ring of bearing, and the rotor includes permanent-magnetic clamp, and the permanent-magnetic clamp is located at the stator
The periphery of iron core, the tail end of the permanent-magnetic clamp is used to be fixedly connected with load, and the rotating shaft is coaxial with permanent-magnetic clamp and its tail
Hold for being fixedly connected with load.
2. outer rotor DC motor as claimed in claim 1, it is characterised in that：There are two bearing chambers in the centre bore,
Two bearings are separately fixed in two bearing chambers, and the outer wall of the rotating shaft is matched somebody with somebody with the inner ring of two bearings
Close.
3. outer rotor DC motor as claimed in claim 2, it is characterised in that：The stator also includes insulating body, described
Stator core and coil windings are immersed in the insulating body, and the teeth portion of the stator core is exposed at the side of the insulating body
On wall, the centre bore and bearing chamber are molded on the insulating body.
4. outer rotor DC motor as claimed in claim 3, it is characterised in that：The stator also includes control panel, described exhausted
Edge main body includes the body portion of integrative-structure and shoulder, and the shoulder is located at the head end in body portion and the external diameter of the shoulder is more than body
The external diameter in portion, the control panel is immersed in the shoulder.
5. outer rotor DC motor as claimed in claim 4, it is characterised in that：The outer wall in the body portion is formed by near caudal end part
The recess of radial depressions, for being connected with load.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611257567.2A CN106602749A (en) | 2016-12-30 | 2016-12-30 | Outer rotor DC motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611257567.2A CN106602749A (en) | 2016-12-30 | 2016-12-30 | Outer rotor DC motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106602749A true CN106602749A (en) | 2017-04-26 |
Family
ID=58583147
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611257567.2A Pending CN106602749A (en) | 2016-12-30 | 2016-12-30 | Outer rotor DC motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106602749A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109450146A (en) * | 2018-12-13 | 2019-03-08 | 歌尔股份有限公司 | A kind of rotating electric machine |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201733205U (en) * | 2009-12-17 | 2011-02-02 | 美的集团有限公司 | Direct-current brushless outer rotor motor |
| JP2013162697A (en) * | 2012-02-07 | 2013-08-19 | Asmo Co Ltd | Motor and method of magnetizing rotor magnet |
| CN203398974U (en) * | 2013-07-08 | 2014-01-15 | 宝鸡泰华磁机电技术研究所有限公司 | Mushroomed intelligent protective type permanent magnetic coupler |
| CN204156670U (en) * | 2014-11-18 | 2015-02-11 | 李剑川 | Rainproof from dispelling the heat external-rotor DC. brush-less |
| CN205647119U (en) * | 2016-03-31 | 2016-10-12 | 苏州博乐格电机技术有限公司 | External rotor motor |
| CN206283332U (en) * | 2016-12-30 | 2017-06-27 | 常州朗奇威电器有限公司 | A kind of outer rotor DC motor |
-
2016
- 2016-12-30 CN CN201611257567.2A patent/CN106602749A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201733205U (en) * | 2009-12-17 | 2011-02-02 | 美的集团有限公司 | Direct-current brushless outer rotor motor |
| JP2013162697A (en) * | 2012-02-07 | 2013-08-19 | Asmo Co Ltd | Motor and method of magnetizing rotor magnet |
| CN203398974U (en) * | 2013-07-08 | 2014-01-15 | 宝鸡泰华磁机电技术研究所有限公司 | Mushroomed intelligent protective type permanent magnetic coupler |
| CN204156670U (en) * | 2014-11-18 | 2015-02-11 | 李剑川 | Rainproof from dispelling the heat external-rotor DC. brush-less |
| CN205647119U (en) * | 2016-03-31 | 2016-10-12 | 苏州博乐格电机技术有限公司 | External rotor motor |
| CN206283332U (en) * | 2016-12-30 | 2017-06-27 | 常州朗奇威电器有限公司 | A kind of outer rotor DC motor |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109450146A (en) * | 2018-12-13 | 2019-03-08 | 歌尔股份有限公司 | A kind of rotating electric machine |
| CN109450146B (en) * | 2018-12-13 | 2023-10-27 | 歌尔股份有限公司 | Rotary motor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170426 |
|
| RJ01 | Rejection of invention patent application after publication |