CN206432874U - A kind of permanent-magnet brushless DC electric machine rotor - Google Patents
A kind of permanent-magnet brushless DC electric machine rotor Download PDFInfo
- Publication number
- CN206432874U CN206432874U CN201720027412.3U CN201720027412U CN206432874U CN 206432874 U CN206432874 U CN 206432874U CN 201720027412 U CN201720027412 U CN 201720027412U CN 206432874 U CN206432874 U CN 206432874U
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- China
- Prior art keywords
- side stator
- fixedly connected
- stator
- iron core
- rotating shaft
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Abstract
The utility model discloses a kind of permanent-magnet brushless DC electric machine rotor, including rotating shaft and iron core, the iron core is fixedly connected on the surface of rotating shaft, the iron core is spliced by some silicon steel sheets, left side stator is fixedly connected with the left of the iron core, right side stator is fixedly connected with the right side of the iron core, endothermic ring is fixedly connected between the left side stator and right side stator, radiating cavity is cooperatively formed between the iron core and endothermic ring, the magnetic sheet, the surface of left side stator and right side stator has been fixedly connected with retainer plate, the top on the left side stator and right side stator surface and position of correspondence radiating cavity offers first through hole, the bottom on the left side stator and right side stator surface and position of correspondence radiating cavity offers the second through hole.The utility model solves the problem of conventional motors rotor radiating effect is not good by the cooperation of endothermic ring, radiating cavity, left side stator and right side stator.
Description
Technical field
The utility model is related to brushless, permanently without Hall Double magnetic circuit motor technical field, specially a kind of DC permanent-magnetic brushless
Rotor.
Background technology
At present, the permanent magnet of permanent-magnet DC electric motor rotor is typically fixed on rotor core by binding agent, in motor work
Rotor will produce larger heat when making, and be especially especially apparent in the motor that rotating speed is higher, power is larger, if can not and
When effectively heat is shed, temperature of rotor exceed permanent magnet working limit will cause permanent magnet irreversible demagnetization, permanent magnet
It will reduce higher motor speed, efficiency reduction, power, moment of torsion once forming irreversible demagnetization, and bigger heat will be produced, from
And enter vicious circle, finally make motor failure, while high temperature will also cause bonding agent ageing failure permanent magnet is dropped, cause
Motor failure, how the effective heat for producing rotor, which sheds, is protected working condition of the permanent magnet in safety to be magneto
An important topic, and if permanent magnet machine rotor axial pole be made up of the magnet steel of polylith same polarity, work as magnet thickness
When thicker, mutual repulsion also will be larger, can not just ensure its axial compactness by bonding agent, easily be produced between magnet steel during installation
Raw larger gap, has a strong impact in motor performance, Chinese invention patent CN102118074A and refer to a kind of permanent direct-current electric
Machine rotor, the invention uses antioxidant coating, extends the service life of motor, by being provided with flabellum on spacing back-up ring,
When motor works, due to rotor and the rotation of flabellum same frequency, the heat-sinking capability of rotor can not be improved, therefore, it is proposed that one
Plant permanent-magnet brushless DC electric machine rotor.
Utility model content
The purpose of this utility model is to provide a kind of permanent-magnet brushless DC electric machine rotor possess the excellent of good heat dissipation effect
Point, solves the problem of conventional motors rotor radiating effect is not good.
To achieve the above object, the utility model provides following technical scheme：A kind of permanent-magnet brushless DC electric machine rotor, bag
Rotating shaft and iron core are included, the iron core is fixedly connected on the surface of rotating shaft, and the iron core is spliced by some silicon steel sheets, the iron
It is fixedly connected with the left of core on the right side of left side stator, the iron core and is fixedly connected with right side stator, the left side is fixed
Endothermic ring is fixedly connected between piece and right side stator, radiating cavity is cooperatively formed between the iron core and endothermic ring, it is described
The surface of endothermic ring is fixedly connected with magnetic sheet, and the surface of the magnetic sheet, left side stator and right side stator has been fixedly connected with
The top on retainer plate, the left side stator and right side stator surface and the correspondingly position of radiating cavity offer first and led to
The bottom on hole, the left side stator and right side stator surface and position of correspondence radiating cavity offers the second through hole,
The back side on the left side stator and right side stator surface and position of correspondence radiating cavity offers third through-hole, it is described
Positive and correspondence radiating cavity the position on left side stator and right side stator surface offers fourth hole, the magnetic sheet
It is fixedly connected between magnetic sheet by fixed block.
It is preferred that, the surface of the rotating shaft and left end spacing collar is fixedly connected with the left of the stator of left side, it is described
The first limited block is fixedly connected between left side stator and left end spacing collar.
It is preferred that, the surface of the rotating shaft and right-hand member spacing collar is fixedly connected with the right side of the stator of right side, it is described
The second limited block is fixedly connected between right side stator and right-hand member spacing collar.
It is preferred that, the left end of the rotating shaft sequentially passes through left side stator, the first limited block and left end spacing collar and extended
To the outside of left end spacing collar.
It is preferred that, the right-hand member of the rotating shaft sequentially passes through right side stator, the second limited block and right-hand member spacing collar and extended
To the outside of right-hand member spacing collar.
Compared with prior art, the beneficial effects of the utility model are as follows：
1st, the utility model is provided with endothermic ring by the inner side in magnetic sheet, is cooled by endothermic ring for magnetic sheet, it is to avoid magnetic
Piece irreversible demagnetization, solves that magnetic sheet irreversible demagnetization causes motor speed to uprise, efficiency reduction, power and moment of torsion reduce asks
Topic, by setting radiating cavity between iron core and endothermic ring, conveniently distributes the heat of endothermic ring absorption, and in left side stator
First through hole, the second through hole, third through-hole and fourth hole are respectively provided with the surface of right side stator, rotor is equally improved
Heat-sinking capability, by the cooperation of endothermic ring, radiating cavity, left side stator and right side stator, solves conventional motors rotor
The problem of radiating effect is not good.
2nd, the utility model is in rotating shaft by setting left end spacing collar and the first limited block, with prevent from producing between magnetic sheet compared with
Big gap, makes magnetic sheet axial restraint close accurately and reliably, by setting right-hand member spacing collar and the second limited block in rotating shaft, together
Sample is in order to prevent from producing larger gap between magnetic sheet, to make magnetic sheet axial restraint close accurately and reliably, run through left side by rotating shaft
Stator, right side stator, left end spacing collar, the first limited block, right-hand member spacing collar and the second limited block, make the knot on rotating shaft surface
Structure connection is even closer reliable.
Brief description of the drawings
Fig. 1 is the utility model structural representation；
Fig. 2 is the utility model left view profile.
In figure：1 rotating shaft, 2 iron cores, 3 silicon steel sheets, 4 endothermic rings, 5 radiating cavitys, 6 magnetic sheets, 7 retainer plates, 8 left side stators,
9 right side stators, 10 first through hole, 11 second through holes, 12 third through-holes, 13 fourth holes, 14 left end spacing collars, 15 first limits
Position block, 16 right-hand member spacing collars, 17 second limited blocks, 18 fixed blocks.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the utility model embodiment is carried out
Clearly and completely describe, it is clear that described embodiment is only a part of embodiment of the utility model, rather than whole
Embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are not under the premise of creative work is made
The every other embodiment obtained, belongs to the scope of the utility model protection.
Fig. 1-2, a kind of permanent-magnet brushless DC electric machine rotor, including rotating shaft 1 and iron core 2 are referred to, iron core 2 is fixedly connected on
The surface of rotating shaft 1, iron core 2 is spliced by some silicon steel sheets 3, and the left side of iron core 2 is fixedly connected with left side stator 8, iron core 2
Right side be fixedly connected with right side stator 9, endothermic ring 4, iron are fixedly connected between left side stator 8 and right side stator 9
Radiating cavity 5 is cooperatively formed between core 2 and endothermic ring 4, the surface of endothermic ring 4 is fixedly connected with magnetic sheet 6, and magnetic sheet 6, left side are fixed
The surface of piece 8 and right side stator 9 has been fixedly connected with the top of retainer plate 7, left side stator 8 and the surface of right side stator 9
And the position of correspondence radiating cavity 5 offers first through hole 10, the bottom on left side stator 8 and the surface of right side stator 9 and
The position of correspondence radiating cavity 5 offers the second through hole 11, the back side on left side stator 8 and the surface of right side stator 9 and right
Should the radiate position of cavity 5 offers third through-hole 12, left side stator 8 and the surface of right side stator 9 positive and correspondingly
The position of radiating cavity 5 offers fourth hole 13, is fixedly connected between magnetic sheet 6 and magnetic sheet 6 by fixed block 18, rotating shaft 1
Surface and be fixedly connected with left end spacing collar 14 positioned at the left side of left side stator 8, left side stator 8 and left end spacing collar 14
Between be fixedly connected with the first limited block 15, by setting left end spacing collar 14 and the first limited block 15 in rotating shaft 1, to prevent
Larger gap is produced between magnetic sheet 6, makes the axial restraint of magnetic sheet 6 close accurately and reliably, the surface of rotating shaft 1 and positioned at right side stator
9 right side is fixedly connected with right-hand member spacing collar 16, and it is spacing to be fixedly connected with second between right side stator 9 and right-hand member spacing collar 16
Block 17, by setting right-hand member spacing collar 16 and the second limited block 17 in rotating shaft 1, also for prevent from producing between magnetic sheet 6 compared with
Big gap, makes the axial restraint of magnetic sheet 6 close accurately and reliably, and it is spacing that the left end of rotating shaft 1 sequentially passes through left side stator 8, first
Block 15 and left end spacing collar 14 and the outside for extending to left end spacing collar 14, the right-hand member of rotating shaft 1 sequentially pass through right side stator 9,
Second limited block 17 and right-hand member spacing collar 16 and the outside for extending to right-hand member spacing collar 16, run through left side stator by rotating shaft 1
8th, right side stator 9, left end spacing collar 14, the first limited block 15, the limited block 17 of right-hand member spacing collar 16 and second, make the table of rotating shaft 1
The structure connection in face is even closer reliable, by being provided with endothermic ring 4 in the inner side of magnetic sheet 6, is that magnetic sheet 6 drops by endothermic ring 4
Temperature, it is to avoid the irreversible demagnetization of magnetic sheet 6, solve the irreversible demagnetization of magnetic sheet 6 cause motor speed to uprise, efficiency reduction, power and
The problem of moment of torsion reduces, by setting radiating cavity 5 between iron core 2 and endothermic ring 4, conveniently distributes the heat of the absorption of endothermic ring 4
Amount, and it is respectively provided with the surface of left side stator 8 and right side stator 9 first through hole 10, the second through hole 11, the and of third through-hole 12
Fourth hole 13, equally improves the heat-sinking capability of rotor, solid by endothermic ring 4, radiating cavity 5, left side stator 8 and right side
The cooperation of stator 9, solves the problem of conventional motors rotor radiating effect is not good.
In use, being that magnetic sheet 6 cools by endothermic ring 4, it is to avoid the irreversible demagnetization of magnetic sheet 6, solve that magnetic sheet 6 is irreversible to move back
The problem of magnetic conductance causes motor speed to uprise, efficiency reduction, power and moment of torsion reduce, passes through and is set between iron core 2 and endothermic ring 4
Radiate cavity 5, conveniently distributes the heat of the absorption of endothermic ring 4, and is respectively provided with the surface of left side stator 8 and right side stator 9
First through hole 10, the second through hole 11, third through-hole 12 and fourth hole 13, equally improve the heat-sinking capability of rotor, by inhaling
The cooperation of hot ring 4, radiate cavity 5, left side stator 8 and right side stator 9, solves conventional motors rotor radiating effect not good
The problem of.
In summary：The permanent-magnet brushless DC electric machine rotor, passes through rotating shaft 1, iron core 2, silicon steel sheet 3, endothermic ring 4, radiating
Cavity 5, magnetic sheet 6, retainer plate 7, left side stator 8, right side stator 9, first through hole 10, the second through hole 11, third through-hole 12,
The cooperation of fourth hole 13 and fixed block 18, solves the problem of conventional motors rotor radiating effect is not good.
While there has been shown and described that embodiment of the present utility model, for the ordinary skill in the art,
It is appreciated that these embodiments can be carried out in the case where not departing from principle of the present utility model and spirit a variety of changes, repaiies
Change, replace and modification, scope of the present utility model is defined by the appended claims and the equivalents thereof.
Claims (5)
1. a kind of permanent-magnet brushless DC electric machine rotor, including rotating shaft (1) and iron core (2), it is characterised in that：The iron core (2) is solid
Surely the surface of rotating shaft (1) is connected to, the iron core (2) is spliced by some silicon steel sheets (3), the left side of the iron core (2) is consolidated
Surely it is connected with the right side of left side stator (8), the iron core (2) and is fixedly connected with right side stator (9), the left side stator
(8) endothermic ring (4) is fixedly connected between right side stator (9), is cooperatively formed between the iron core (2) and endothermic ring (4)
Radiate cavity (5), and the surface of the endothermic ring (4) is fixedly connected with magnetic sheet (6), the magnetic sheet (6), left side stator (8) and
The surface of right side stator (9) has been fixedly connected with retainer plate (7), the left side stator (8) and right side stator (9) surface
Top and correspondence radiating cavity (5) position offer first through hole (10), the left side stator (8) and right side are fixed
The bottom on piece (9) surface and position of correspondence radiating cavity (5) offers the second through hole (11), the left side stator (8)
Third through-hole (12), the left side are offered with the position at the back side on right side stator (9) surface and correspondence radiating cavity (5)
Positive and correspondence radiating cavity (5) the position on stator (8) and right side stator (9) surface offers fourth hole
(13), it is fixedly connected between the magnetic sheet (6) and magnetic sheet (6) by fixed block (18).
2. a kind of permanent-magnet brushless DC electric machine rotor according to claim 1, it is characterised in that：The table of the rotating shaft (1)
Face and left end spacing collar (14) is fixedly connected with the left of the left side stator (8), the left side stator (8) limits with left end
The first limited block (15) is fixedly connected between position circle (14).
3. a kind of permanent-magnet brushless DC electric machine rotor according to claim 1, it is characterised in that：The table of the rotating shaft (1)
Face and right-hand member spacing collar (16) is fixedly connected with the right side of the right side stator (9), the right side stator (9) limits with right-hand member
The second limited block (17) is fixedly connected between position circle (16).
4. a kind of permanent-magnet brushless DC electric machine rotor according to claim 1 or 2, it is characterised in that：The rotating shaft (1)
Left end sequentially passes through left side stator (8), the first limited block (15) and left end spacing collar (14) and extends to left end spacing collar
(14) outside.
5. a kind of permanent-magnet brushless DC electric machine rotor according to claim 1 or 3, it is characterised in that：The rotating shaft (1)
Right-hand member sequentially passes through right side stator (9), the second limited block (17) and right-hand member spacing collar (16) and extends to right-hand member spacing collar
(16) outside.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720027412.3U CN206432874U (en) | 2017-01-10 | 2017-01-10 | A kind of permanent-magnet brushless DC electric machine rotor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720027412.3U CN206432874U (en) | 2017-01-10 | 2017-01-10 | A kind of permanent-magnet brushless DC electric machine rotor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206432874U true CN206432874U (en) | 2017-08-22 |
Family
ID=59584902
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720027412.3U Expired - Fee Related CN206432874U (en) | 2017-01-10 | 2017-01-10 | A kind of permanent-magnet brushless DC electric machine rotor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206432874U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110492714A (en) * | 2019-08-06 | 2019-11-22 | 包头江馨微电机科技有限公司 | A kind of voice coil motor of high efficiency and heat radiation |
-
2017
- 2017-01-10 CN CN201720027412.3U patent/CN206432874U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110492714A (en) * | 2019-08-06 | 2019-11-22 | 包头江馨微电机科技有限公司 | A kind of voice coil motor of high efficiency and heat radiation |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170822 Termination date: 20180110 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |