CN107769482A - Rotor anti-disengaging device, external rotor electric machine and its assemble method - Google Patents
Rotor anti-disengaging device, external rotor electric machine and its assemble method Download PDFInfo
- Publication number
- CN107769482A CN107769482A CN201711289622.0A CN201711289622A CN107769482A CN 107769482 A CN107769482 A CN 107769482A CN 201711289622 A CN201711289622 A CN 201711289622A CN 107769482 A CN107769482 A CN 107769482A
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- China
- Prior art keywords
- spindle nose
- cover plate
- rotor
- nose cover
- bearing
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- 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.)
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K11/00—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection
- H02K11/20—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection for measuring, monitoring, testing, protecting or switching
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- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Power Engineering (AREA)
- Motor Or Generator Frames (AREA)
Abstract
The invention provides a kind of rotor anti-disengaging device, external rotor electric machine and its assemble method, is related to the technical field that motor protects, including spindle nose cover plate, shaft block ring is between spindle nose cover plate and bearing；Spindle nose cover plate is arranged on the spindle nose of rotating shaft, is used to be stuck in bearing outer ring after shaft block ring fails.Compared with prior art; the present invention adds spindle nose end cap in the spindle nose of rotating shaft; when motor outer rotor because bearing or spindle nose back-up ring Joint failure; rotor part is moved to spindle nose cover plate and contacted with the bearing outer ring remained on stator component; rotor part is prevented to continue to separate with stator component; simultaneously because rotor part, which contacts friction with spindle nose cover plate, sends sound, user's shutdown in time processing is reminded.The present invention is simple in construction, and technique is concisely easy.For external rotor electric machine because shaft block ring and damage of the bearing failure provide a kind of effective early warning and protective action, avoid rotor part and the secondary injury to caused by people around, thing such as drop, fly out.
Description
Technical field
The present invention relates to motor protection technology field, more particularly, to a kind of rotor anti-disengaging device, external rotor electric machine and
Its assemble method.
Background technology
External rotor axial-flow fan has the characteristics that compact-sized, easy for installation, reliable, noise is low, efficient energy-saving.Production
Product are widely used in the Architectural Equipments such as hotel, restaurant, industrial and mining enterprises, office building, cinema, are used as refrigerator, air-conditioning, refrigerator, cold
The ventilations such as storehouse refrigeration corollary equipment or ventilation and heat are used.With epoch expanding economy, the improvement of people's living standards, people
The requirement in terms of security performance and security protection for blower fan also more and more higher, the safety of the motor in external rotor axial-flow fan
Performance and security protection are particularly important.In use for some time, shaft block ring can damage mistake to motor of the prior art
Effect, now, the rotor part of motor can depart from stator component, and the motor etc. that either flies out of dropping is made to people around or thing
Into the phenomenon of injury, secondary injury is caused, very big potential problem be present.
Therefore, how to alleviate motor in the prior art in use for some time caused by shaft block ring damage failure to turn
The disengaging stator component problem of subassembly is those skilled in the art's urgent problem to be solved.
The content of the invention
It is an object of the invention to provide a kind of rotor anti-disengaging device, external rotor electric machine and its assemble method, Neng Gouhuan
Rotor part departs from stator component to motor to solution caused by shaft block ring damage failure in use for some time in the prior art
The problem of.
To achieve the above object, the present invention provides following technical scheme：
In a first aspect, the present invention provides a kind of rotor anti-disengaging device, including spindle nose cover plate, shaft block ring are located at the axle
Between epicranial plate and bearing；The spindle nose cover plate is arranged on the spindle nose of rotating shaft, is used to be stuck in after the shaft block ring fails
On the bearing outer ring.
Further, the external diameter of the spindle nose cover plate is more than the bearing outer ring internal diameter, and less than outside the bearing outer ring
Footpath.
Further, the spindle nose cover plate includes connecting portion and is connected to the catch of the connecting portion outer edge, the company
Connecting hole is provided with socket part, for connecting the spindle nose cover plate and the rotating shaft.
Further, the connecting portion is boss, and the boss sets fluted towards the shaft block ring side；
In a state of use, the boss is enclosed on the spindle nose.
Further, described rotor anti-disengaging device also includes pad, the pad be arranged on the spindle nose cover plate with
Between the shaft block ring, and compressive state is in during use.
Further, the pad includes taper pad.
Further, the big end external diameter of the taper pad is less than the external diameter of the spindle nose cover plate, the taper pad small end
External diameter is more than the external diameter of the shaft block ring.
Further, notch is additionally provided with the taper pad, described in the extension line of the notch length direction passes through
The axial line of taper pad.
Second aspect, the present invention also provide a kind of external rotor electric machine, including rotating shaft, shaft block ring are provided with the rotating shaft
And bearing, in addition to the rotor anti-disengaging device any one of first aspect.
The third aspect, the present invention also provide a kind of assemble method of external rotor electric machine, including：
Taper pad is socketed on the spindle nose of rotating shaft, and is connected to shaft block ring side；
The connecting portion of spindle nose cover plate is enclosed on the spindle nose, and the opening of connecting portion is towards the spindle nose；
Bolt is screwed in the screwed hole of the spindle nose after passing through the connecting hole of the spindle nose cover plate connecting portion, by the spindle nose
Cover plate is fixed in the rotating shaft.
Rotor anti-disengaging device, external rotor electric machine and its assemble method provided by the invention have the advantages that：
First aspect present invention provides a kind of rotor anti-disengaging device, including spindle nose cover plate, shaft block ring are located at Spindle nose cover
Between plate and bearing；Spindle nose cover plate is arranged on the spindle nose of rotating shaft, is used to be stuck in bearing outer ring after shaft block ring fails.With
Prior art is compared, and the present invention adds spindle nose end cap in the spindle nose of rotating shaft, when motor outer rotor because bearing or spindle nose back-up ring
Joint failure, rotor part are moved to spindle nose cover plate and contacted with the bearing outer ring remained on stator component, prevent rotor part
Continuation separates with stator component, simultaneously because rotor part, which contacts friction with spindle nose cover plate, sends sound, reminds user timely
Shutdown is handled.The present invention is simple in construction, and technique is concisely easy.For external rotor electric machine because shaft block ring and damage of the bearing fail
A kind of effective early warning and protective action are provided, rotor part is avoided and the secondary wound to caused by people around, thing such as drops, flies out
Evil.
The external rotor electric machine that second aspect of the present invention provides is provided with the anti-detachment dress of rotor of first aspect present invention offer
Put, so as to all possessed beneficial effects of the rotor anti-disengaging device provided with first aspect present invention.
The assemble method for the external rotor electric machine that third aspect present invention provides is because of the rotating shaft spindle nose in above-mentioned technical proposal
The rotor anti-disengaging device of first aspect present invention offer is installed, therefore when motor is installed, unavailable conventional peace
Dress technique, when installing motor, taper pad is socketed on the spindle nose of rotating shaft, and be connected to shaft block ring side；By spindle nose
The connecting portion of cover plate is enclosed on spindle nose, and the opening of connecting portion is towards spindle nose；Bolt passes through the connecting hole of spindle nose cover plate connecting portion
Screw in afterwards in the screwed hole of spindle nose, spindle nose cover plate is fixed in rotating shaft.The assemble method that third aspect present invention provides
It is simple to operate, technique is concisely easy, and using third aspect present invention provide assemble method assembling external rotor electric machine pair
In external rotor electric machine because shaft block ring and damage of the bearing failure provide a kind of effective early warning and protective action, rotor is avoided
Part such as drops, flown out at the secondary injury to caused by people around, thing.
Brief description of the drawings
, below will be to specific in order to illustrate more clearly of the specific embodiment of the invention or technical scheme of the prior art
The required accompanying drawing used is briefly described in embodiment or description of the prior art, it should be apparent that, in describing below
Accompanying drawing is some embodiments of the present invention, for those of ordinary skill in the art, before creative work is not paid
Put, other accompanying drawings can also be obtained according to these accompanying drawings.
Fig. 1 is the structural representation of external rotor electric machine provided in an embodiment of the present invention；
Fig. 2 is the enlarged drawing at A in Fig. 1；
Fig. 3 is the structural representation of spindle nose cover plate provided in an embodiment of the present invention；
Fig. 4 is the structural representation of taper pad provided in an embodiment of the present invention.
Icon：1- spindle nose cover plates；2- taper pads；3- rotating shafts；4- shaft block rings；5- bearings；6- bolts；7- stator departments
Part；8- rotor parts；10- grooves；11- connecting portions；12- catch；20- notches.
Embodiment
Technical scheme is clearly and completely described below in conjunction with accompanying drawing, it is clear that described implementation
Example is part of the embodiment of the present invention, rather than whole embodiments.Based on the embodiment in the present invention, ordinary skill
The every other embodiment that personnel are obtained under the premise of creative work is not made, belongs to the scope of protection of the invention.
In the description of the invention, it is necessary to explanation, term " " center ", " on ", " under ", "left", "right", " vertical ",
The orientation or position relationship of the instruction such as " level ", " interior ", " outer " be based on orientation shown in the drawings or position relationship, merely to
Be easy to the description present invention and simplify description, rather than instruction or imply signified device or element must have specific orientation,
With specific azimuth configuration and operation, therefore it is not considered as limiting the invention.In addition, term " first ", " second ",
" the 3rd " is only used for describing purpose, and it is not intended that instruction or hint relative importance.
In the description of the invention, it is necessary to illustrate, unless otherwise clearly defined and limited, term " installation ", " phase
Even ", " connection " should be interpreted broadly, for example, it may be being fixedly connected or being detachably connected, or be integrally connected；Can
To be mechanical connection or electrical connection；Can be joined directly together, can also be indirectly connected by intermediary, Ke Yishi
The connection of two element internals.For the ordinary skill in the art, with concrete condition above-mentioned term can be understood at this
Concrete meaning in invention.
The embodiment of the present invention is described in detail below in conjunction with accompanying drawing.It should be appreciated that this place is retouched
The embodiment stated is merely to illustrate and explain the present invention, and is not intended to limit the invention.
Fig. 1, Fig. 2, Fig. 3 and Fig. 4 are refer to, below in conjunction with accompanying drawing to the anti-detachment dress of rotor provided in an embodiment of the present invention
Put, external rotor electric machine and its assemble method elaborate.
Embodiment 1
The embodiment of first aspect present invention provides a kind of rotor anti-disengaging device, including spindle nose cover plate 1, shaft block ring
4 between spindle nose cover plate 1 and bearing 5；Spindle nose cover plate 1 is arranged on the spindle nose of rotating shaft 3, is used for after the failure of shaft block ring 4
It is stuck on the outer ring of bearing 5.
Compared with prior art, the embodiment of first aspect present invention provides a kind of rotor anti-disengaging device, including spindle nose
Cover plate 1, shaft block ring 4 is between spindle nose cover plate 1 and bearing 5；Spindle nose cover plate 1 is arranged on the spindle nose of rotating shaft 3, when axle is kept off
It is used to be stuck in the outer ring of bearing 5 after the failure of circle 4.The present invention adds spindle nose end cap in the spindle nose of rotating shaft 3, when motor outer rotor because
For bearing 5 or spindle nose back-up ring Joint failure, rotor part 8 is moved to spindle nose cover plate 1 and the bearing 5 remained on stator component 7
Outer ring contacts, and prevents rotor part 8 from continuing to separate with stator component 7, is rubbed simultaneously because rotor part 8 contacts with spindle nose cover plate 1
Wiping sends sound, reminds user's shutdown in time processing.The rotor anti-disengaging device that embodiments of the invention provide is simple in construction,
Technique is concisely easy.For external rotor electric machine because shaft block ring 4 and bearing 5 damage failure and provide a kind of effective early warning and prevent
Shield acts on, and avoids rotor part 8 and the secondary injury to caused by people around, thing such as drops, flies out.
In the alternative of the present embodiment, further, rotor anti-disengaging device also includes pad, and pad is arranged on axle
Between epicranial plate 1 and shaft block ring 4, and compressive state is in during use.Pad is in compressive state in such scheme, both can be with
The abjection of spindle nose back-up ring is prevented, shaft block ring 4 can also be temporarily substituted after the wear out failure of shaft block ring 4, while axle can also be given
The installation bolt 6 of epicranial plate 1 provides locking pretightning force.
When damage occurs for motor bearings 5, disintegrate failure when, the spindle nose that is tightened together with the rotating shaft 3 of motor rotor part 8
Cover plate 1 will move with rotating shaft 3, and the outer ring of bearing 5 with remaining on stator component 7 contacts, prevent rotor part 8 continue with
Stator component 7 separates, simultaneously because contact friction sends sound, reminds user's shutdown in time processing.Meanwhile the present invention uses
Pad and press-fit approach, can also deviate from shaft block ring 4 or wear out failure after temporarily substitute spindle nose back-up ring, maintain blower fan
Assembling structure and function operation, or the installation bolt 6 of spindle nose cover plate 1 provides pretightning force, ensures that device connection is effective.
The present embodiment is realized after protecting motor fails because of shaft block ring 4 by spindle nose cover plate 1 and the press-fit of pad
Rotor and stator, which depart from, drop or flown out etc., causes the purpose of secondary injury to people around, thing.
Spindle nose cover plate 1 is elaborated below：
In the present embodiment, the external diameter of spindle nose cover plate 1 is more than the outer ring internal diameter of bearing 5, and is less than the outer ring external diameter of bearing 5.Work as electricity
Damage occurs for machine bearing 5, disintegrate failure when, the spindle nose cover plate 1 that is tightened together with the rotating shaft 3 of motor rotor part 8 will be with
Rotating shaft 3 is moved, and the outer ring of bearing 5 with remaining on stator component 7 contacts, and the external diameter of spindle nose cover plate 1 is more than in the outer ring of bearing 5
Footpath, and it is less than the outer ring external diameter of bearing 5 so that spindle nose cover plate 1 is just stuck on the outer ring of bearing 5, and playing prevents rotating shaft 3 from continuing to depart from
Axis hole on stator, rotor part 8 is prevented to continue to separate with stator component 7, simultaneously because spindle nose cover plate 1 and the outer ring side of bearing 5
The contact friction in face sends sound, reminds user's shutdown in time processing.
In the alternative of the present embodiment, further, spindle nose cover plate 1 includes connecting portion 11 and is connected to connecting portion 11
The catch 12 of outer edge, connecting hole is provided with connecting portion 11, for connectiing shaft head cover plate 1 and rotating shaft 3.The side cover of spindle nose cover plate 1
On spindle nose, the connecting hole of connecting portion 11 aligns with the mounting hole in rotating shaft 3, now, the compress gasket of catch 12, is in pad
Then compressive state is connected spindle nose cover plate 1 and rotating shaft 3 by connector.
In a kind of embodiment, spindle nose cover plate 1 is connected with rotating shaft 3 by bolt 6, specifically, the side cover of spindle nose cover plate 1
On blower fan spindle nose, screwed in after the connecting hole at the center of spindle nose cover plate 1 is passed through with bolt 6 in the screwed hole of motor shaft head, by spindle nose
Cover plate 1 is fixed on machine shaft 3.
In the alternative of the present embodiment, further, connecting portion 11 is boss, and boss is towards the side of shaft block ring 4
Set fluted 10；In a state of use, boss is enclosed on spindle nose.The cap sequence that spindle nose cover plate 1 can be recessed centered on, even
Socket part 11 is boss, the shade of the catch 12 on the periphery of connecting portion 11 similar to cap.The part of boss depression is enclosed on spindle nose side, keeps off
Piece 12 abuts with pad, may then pass through bolt 6 and is connected connecting portion 11 with rotating shaft 3 so that spindle nose cover plate 1 connects with rotating shaft 3
Contacting surface product increase, enhances the frictional force between spindle nose cover plate 1 and rotating shaft 3, so as to prevent bolt 6 to be elongated because of mechanical oscillation
When, bolt 6 will rotate with loosening.
Pad is elaborated below：
In the present embodiment, pad includes taper pad 2.Taper pad 2 is designed for the anti-of bolt 6 or mode connects for screw
Loose packing ring.Suitable for medium or high-strength bolt 6, the connection of screw, it is particularly suitable for high temperature, the place of high pressure.Taper pad 2
Bearing load is big and elastic can recover, and the pulling force of bolt 6 can be born due to the fact that caused relaxation：The abrasion of consumable accessory,
The compression of creep, relaxation, thermal expansion, contraction, or seal.Taper pad 2 makes the elastic reaction of screw add several times, and it can
Effectively to substitute common spring packing ring, but it is uncomfortable as lock washer, plain washer combination.
In the alternative of the present embodiment, further, taper pad 2 hold greatly external diameter be less than spindle nose cover plate 1 external diameter,
The small end external diameter of taper pad 2 is more than the external diameter of shaft block ring 4.Specifically, the big end external diameter of taper pad 2 can be less than Spindle nose cover
The external diameter of plate 1, it can both prevent spindle nose back-up ring from deviating from, and temporarily can also substitute shaft block ring after the wear out failure of shaft block ring 4
4, while locking pretightning force can also be provided to the bolt 6 of spindle nose cover plate 1.
In the alternative of the present embodiment, further, notch 20, the length of notch 20 are additionally provided with taper pad 2
The extension line in direction passes through the axial line of taper pad 2.Taper pad 2 relies primarily on frictional force to reach anti-loosing effect, taper
Notch 20 is provided with pad 2, and radial repousse is formed on the outside of pad, taper pad 2 is in compressive state when using,
Increase the frictional force between taper pad 2 and shaft block ring 4, so as to reach locking and make tight effect.
When damage occurs for motor bearings 5, disintegrate failure when, the Spindle nose cover that is tightened together with the axle of motor rotor part 8
Plate 1 will move, and the outer ring of bearing 5 with remaining on stator component 7 contacts, and prevention rotor part 8 continues and stator
Part 7 separates, simultaneously because spindle nose cover plate 1, which contacts friction with the outer ring of bearing 5, sends sound, reminds the timely dock of user
Reason.Meanwhile the present invention taper pad 2 and press-fit approach that use, can also deviate from shaft block ring 4 or wear out failure after temporarily
Spindle nose back-up ring is substituted, maintains the assembling structure and function operation of blower fan, or spindle nose cover plate 1 installs screw and provides pretension
Power, ensure that device connection is effective.The present invention is simple in construction, and technique is concisely easy.For external rotor electric machine because the He of shaft block ring 4
The damage failure of bearing 5 provides a kind of effective early warning and protective action, avoid rotor part 8 drop, fly out etc. to people around,
Secondary injury caused by thing.
Embodiment 2
The embodiment of second aspect of the present invention also provides a kind of external rotor electric machine, including rotating shaft 3, and axle is provided with rotating shaft 3
With the rotor anti-disengaging device of back-up ring 4 and bearing 5, in addition to any one of first aspect.
The embodiment that the external rotor electric machine that the embodiment of second aspect of the present invention provides is provided with first aspect present invention carries
The rotor anti-disengaging device of confession, so as to possessed by the rotor anti-disengaging device of the embodiment offer with first aspect present invention
All beneficial effects.
Embodiment 3
The embodiment of third aspect present invention also provides a kind of assemble method of external rotor electric machine, including：
Taper pad 2 is socketed on the spindle nose of rotating shaft 3, and is connected to the side of shaft block ring 4；
The connecting portion 11 of spindle nose cover plate 1 is enclosed on spindle nose, and the opening of connecting portion 11 is towards spindle nose；
Bolt 6 is screwed in the screwed hole of spindle nose after passing through the connecting hole of the connecting portion 11 of spindle nose cover plate 1, and spindle nose cover plate 1 is pacified
Dress is fixed in rotating shaft 3.
The assemble method for the external rotor electric machine that the embodiment of third aspect present invention provides is because in above-mentioned technical proposal
The spindle nose of rotating shaft 3 be provided with first aspect present invention embodiment provide rotor anti-disengaging device, therefore install motor when
Wait, unavailable conventional mounting process, when installing motor, taper pad 2 is socketed on the spindle nose of rotating shaft 3, and be connected to
The side of shaft block ring 4；The connecting portion 11 of spindle nose cover plate 1 is enclosed on spindle nose, and the opening of connecting portion 11 is towards spindle nose；Bolt 6
Screwed in after through the connecting hole of the connecting portion 11 of spindle nose cover plate 1 in the screwed hole of spindle nose, spindle nose cover plate 1 is fixed on rotating shaft 3
On.Assemble method that the embodiment of third aspect present invention provides is simple to operate, technique is concisely easy, and using the present invention the
The external rotor electric machine for the assemble method assembling that the embodiment of three aspects provides is for external rotor electric machine because shaft block ring 4 and bearing
5 damage failures provide a kind of effective early warning and protective actions, avoid rotor part 8 and drop, fly out etc. and people around, thing are made
Into secondary injury.
Rotor anti-disengaging device, external rotor electric machine and its assemble method of the present invention are illustrated above, still, this
Invention is not limited to above-mentioned specific embodiment, without departing from the scope of claim, can carry out various changes
Shape or change.The invention includes various changes and modifications within the scope of the claims.
Finally it should be noted that：Various embodiments above is merely illustrative of the technical solution of the present invention, rather than its limitations；To the greatest extent
Invention is described in detail with reference to foregoing embodiments for pipe, it will be understood by those within the art that：It is still
Technical scheme described in foregoing embodiments can be modified, either which part or all technical characteristic are carried out
Equivalent substitution；And these modifications or replacement, the essence of appropriate technical solution is departed from various embodiments of the present invention technical side
The scope of case.
Claims (10)
1. a kind of rotor anti-disengaging device, it is characterised in that including spindle nose cover plate (1), shaft block ring (4) is located at the Spindle nose cover
Between plate (1) and bearing (5)；The spindle nose cover plate (1) is arranged on the spindle nose of rotating shaft (3), when the shaft block ring (4) fails
It is used to be stuck in the bearing (5) outer ring afterwards.
2. rotor anti-disengaging device according to claim 1, it is characterised in that the external diameter of the spindle nose cover plate (1) is more than
Bearing (5) outer ring internal diameter, and it is less than the bearing (5) outer ring external diameter.
3. rotor anti-disengaging device according to claim 2, it is characterised in that the spindle nose cover plate (1) includes connecting portion
(11) and the catch (12) of the connecting portion (11) outer edge is connected to, is provided with connecting hole on the connecting portion (11), is used for
Connect the spindle nose cover plate (1) and the rotating shaft (3).
4. rotor anti-disengaging device according to claim 3, it is characterised in that the connecting portion (11) is boss, described
Boss sets fluted (10) towards the shaft block ring (4) side；
In a state of use, the boss is enclosed on the spindle nose.
5. rotor anti-disengaging device according to claim 1, it is characterised in that be also arranged on including pad, the pad
Between the spindle nose cover plate (1) and the shaft block ring (4), and compressive state is in during use.
6. rotor anti-disengaging device according to claim 5, it is characterised in that the pad includes taper pad (2).
7. rotor anti-disengaging device according to claim 6, it is characterised in that the taper pad (2) end external diameter greatly is small
In the external diameter of the spindle nose cover plate (1), taper pad (2) the small end external diameter is more than the external diameter of the shaft block ring (4).
8. rotor anti-disengaging device according to claim 6, it is characterised in that be additionally provided with the taper pad (2)
Notch (20), the extension line of notch (20) length direction pass through the axial line of the taper pad (2).
9. a kind of external rotor electric machine, including rotating shaft (3), shaft block ring (4) and bearing (5) are provided with the rotating shaft (3), it is special
Sign is, in addition to the rotor anti-disengaging device any one of claim 1 to 8.
A kind of 10. assemble method of external rotor electric machine, it is characterised in that including：
Taper pad (2) is socketed on the spindle nose of rotating shaft (3), and is connected to shaft block ring (4) side；
The connecting portion (11) of spindle nose cover plate (1) is enclosed on the spindle nose, and the opening of connecting portion (11) is towards the spindle nose；
Bolt (6) is screwed in the screwed hole of the spindle nose after passing through the connecting hole of spindle nose cover plate (1) connecting portion (11), by institute
Spindle nose cover plate (1) is stated to be fixed in the rotating shaft (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711289622.0A CN107769482B (en) | 2017-12-07 | 2017-12-07 | Rotor anti-disengaging device, external rotor electric machine and its assemble method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711289622.0A CN107769482B (en) | 2017-12-07 | 2017-12-07 | Rotor anti-disengaging device, external rotor electric machine and its assemble method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107769482A true CN107769482A (en) | 2018-03-06 |
| CN107769482B CN107769482B (en) | 2019-11-26 |
Family
ID=61277939
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711289622.0A Active CN107769482B (en) | 2017-12-07 | 2017-12-07 | Rotor anti-disengaging device, external rotor electric machine and its assemble method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107769482B (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203339854U (en) * | 2013-06-27 | 2013-12-11 | 上海申富电机有限公司 | Motor bearing insulation structure |
| CN204013038U (en) * | 2014-05-12 | 2014-12-10 | 上海燎慧机电科技有限公司 | Anti-knock shock resistance force motor and the fuel gas shooting nail device that comprises this anti-knock shock resistance force motor |
| CN106169829A (en) * | 2016-07-27 | 2016-11-30 | 中车永济电机有限公司 | The traction electric machine of bearing can be changed online |
-
2017
- 2017-12-07 CN CN201711289622.0A patent/CN107769482B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203339854U (en) * | 2013-06-27 | 2013-12-11 | 上海申富电机有限公司 | Motor bearing insulation structure |
| CN204013038U (en) * | 2014-05-12 | 2014-12-10 | 上海燎慧机电科技有限公司 | Anti-knock shock resistance force motor and the fuel gas shooting nail device that comprises this anti-knock shock resistance force motor |
| CN106169829A (en) * | 2016-07-27 | 2016-11-30 | 中车永济电机有限公司 | The traction electric machine of bearing can be changed online |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107769482B (en) | 2019-11-26 |
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