CN206506377U - A kind of permanent magnet brushless electromotor - Google Patents
A kind of permanent magnet brushless electromotor Download PDFInfo
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- CN206506377U CN206506377U CN201720243370.7U CN201720243370U CN206506377U CN 206506377 U CN206506377 U CN 206506377U CN 201720243370 U CN201720243370 U CN 201720243370U CN 206506377 U CN206506377 U CN 206506377U
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- magnet brushless
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Abstract
The rotating shaft of forward and backward support is run through in permanent magnet brushless electromotor provided by the utility model, including fore-stock, the after-poppet being oppositely arranged, rotor, stator, fan in forward and backward support, and part.Wherein described stator includes stator core and stator winding coil, it is dielectrically separated between the stator core and stator winding coil with frid before insulation and insulation drop end in the way of fastening up and down, the fan is equably placed with multiple blades in the side towards rotor core, wherein the cross section of each blade is disposed as arc-shaped.The utility model is not only ensured and is sufficiently engaged between frid and insulation drop end before insulation, and then ensured the insulation stability of stator core and stator winding coil in the permanent magnet brushless electromotor by rational structure setting；And it is easy to flowing of the air in fan blade, and then improve the overall radiating effect of the permanent magnet brushless electromotor.
Description
Technical field
The utility model belongs to permanent magnet brushless electromotor technical field, and in particular to a kind of stator core and stator winding line
The circle insulation permanent magnet brushless electromotor that stability is good and integral heat sink effect is good.
Background technology
Compared to traditional electrical excitation motor, permanent magnet brushless electromotor have simple in construction, reliable, small volume,
Quality is small, be lost less, efficiency high, and the shape and size of motor can be with the remarkable advantage such as versatile and flexible, because using model
Enclose extremely wide, almost throughout Aero-Space, national defence, industrial and agricultural production and the every field of daily life.
Current existing electric chain saw typically all carries out power drive using permanent magnet brushless electromotor, current existing application
Permanent magnet brushless electromotor on electric chain saw, it is exhausted specifically for what is be dielectrically separated to stator core and stator winding coil
Cooperation is abutted between frid and insulation drop end before edge, due to that can not keep away so during specifically being assembled to it
The rigging error presence exempted from can prevent before insulating frid with insulation drop end from being fully engaged, also can be because of frid before insulation
With insulation drop end its own in injection production process the defective products that produces and cause stator core with stator winding coil not
Can be completely isolated, will so the insulation stability of permanent magnet brushless electromotor be reduced, so as to reduce electronic using the brushless, permanently
The performance of the electric chain saw of machine.And existing permanent magnet brushless electromotor, the blade on its fan is generally planar structure, and it is in work
The wind that correspondence is produced when making is smaller, so as to reduce the overall radiating effect of the permanent magnet brushless electromotor.
Utility model content
The purpose of this utility model is to provide a kind of permanent magnet brushless electromotor for being used to solve above-mentioned technical problem.
Specifically, a kind of permanent magnet brushless electromotor, including
Rotor, the rotor includes rotor core, multiple magnet steel and rotor jacket, the rotor core successively from inside to outside
Periphery on be provided with multiple wedge-shaped slots, and be correspondingly arranged on a magnet steel in each wedge-shaped slot；
Stator, the stator includes stator core and stator winding coil, the stator core and stator winding coil it
Between with insulation before frid with insulation drop end by up and down fastening in the way of isolated；
Rotating shaft, the rotating shaft is arranged on rotor core in the way of keyway coordinates；
Fore-stock, after-poppet, the fore-stock are oppositely arranged with after-poppet, and are fixedly connected with multiple stay bolts；
Fan, the fan is socketed in rotating shaft and located at the inside of fore-stock, and the fan is towards rotor core
Side is equably placed with multiple blades, wherein the cross section of each blade is disposed as arc-shaped.
As preferred scheme of the present utility model, frid contacts with each other with insulation drop end in its junction before the insulation
And partly overlap.
As preferred scheme of the present utility model, frid is at the position that it is connected with insulation drop end before the insulation
The first flange is provided with, correspondingly, the insulation drop end is provided with second at the position that it is connected with frid before insulation
Flange, and when frid above and below insulation drop end with fastening before insulation, the first flange of frid is arranged on insulation before the insulation
The outside of second flange of drop end, and fitted with the second flange.
As preferred scheme of the present utility model, frid is at the position that it is connected with insulation drop end before the insulation
The first flange is provided with, correspondingly, the insulation drop end is provided with second at the position that it is connected with frid before insulation
Flange, and when frid above and below insulation drop end with fastening before insulation, the first flange of frid is arranged on insulation before the insulation
The inner side of second flange of drop end, and fitted with the second flange.
As preferred scheme of the present utility model, the blade of the fan offers circle on the side end face away from rotating shaft
Arcuation breach, and in the blade towards ellipticity breach is offered on a side end face of rotor core, wherein the arc-shaped lacks
The bore of mouth is more than the bore of ellipticity breach.
As preferred scheme of the present utility model, multiple first thermovents, institute are offered on the periphery of the fore-stock
State after-poppet and offer multiple second thermovents on the side end face away from fore-stock.
As preferred scheme of the present utility model, the two ends of the rotating shaft are respectively from fore-stock and after-poppet part to extension
Stretch, and a side end of rotating shaft stretching fore-stock is provided with cramp joint mouthful, a side end of stretching after-poppet is provided with screw thread and connect
Mouthful.
As preferred scheme of the present utility model, the stator core is arranged at the position between fore-stock and after-poppet
And cooperation is abutted with after-poppet with fore-stock.
As preferred scheme of the present utility model, multiple spacing bar grooves are provided with the periphery of the stator core, and
Corresponded with stay bolt；And current brackets and after-poppet with stay bolt when being connected, it is located at forward and backward branch in the stay bolt
Part between frame is arranged in the spacing bar groove of stator core.
As preferred scheme of the present utility model, three stay bolts of annular array are used between the fore-stock and after-poppet
It is attached fixation.
Due to the utilization of above-mentioned technical proposal, the utility model has following advantages compared with prior art：
Permanent magnet brushless electromotor provided by the utility model, by that will be used to enter stator core with stator winding coil
Frid is assembled with insulation drop end using fastening up and down by the way of before the insulation that is dielectrically separated from of row so that the preceding frid of insulation and
Insulation drop end partially overlaps handing-over after assembling, and this assures sufficient between frid before insulation and insulation drop end
It is engaged, and then has ensured the insulation stability of stator core and stator winding coil in the permanent magnet brushless electromotor；Meanwhile,
By the way that the cross section of fan blade is set into arc-shaped, fan is so facilitated and has carried out rotation space-time at a high speed in company with rotating shaft
Flowing of the gas on blade, and then improve the overall radiating effect of the permanent magnet brushless electromotor.
Brief description of the drawings
Fig. 1 is the stereogram of permanent magnet brushless electromotor provided by the utility model.
Fig. 2 is the sectional view of permanent magnet brushless electromotor provided by the utility model.
Fig. 3 is the structural representation of rotor core in the utility model.
Fig. 4 is the structural representation of the preceding frid of insulation in the utility model.
Fig. 5 is the structural representation of insulation drop end in the utility model.
Fig. 6 is the structural representation of fan in the utility model.
Embodiment
To make the purpose of this utility model, technical scheme and advantage of greater clarity, with reference to embodiment
And referring to the drawings, the utility model is further described.It should be understood that these descriptions are merely illustrative, and do not really want
Limit scope of the present utility model.In addition, in the following description, the description to known features and technology is eliminated, to avoid not
Necessarily obscure concept of the present utility model.
Refer to Fig. 1-Fig. 6, permanent magnet brushless electromotor 100 provided by the utility model, including the preceding branch being oppositely arranged
Forward and backward support is run through in frame 10, after-poppet 20, rotor, stator, fan 50 in forward and backward support (10,20), and part
The rotating shaft 60 of (10,20).
Wherein, the rotor includes rotor core 31, multiple magnet steel 32 and rotor jacket 33, the rotor core 31, many
Individual magnet steel 32 and rotor jacket 33 are set gradually from inside to outside, and multiple wedge shapes are provided with the periphery of the rotor core 31
A magnet steel 32 is correspondingly arranged in groove 34, and each wedge-shaped slot 34, that is, the magnet steel 32 is equably to be arranged in rotor iron
On the periphery of core 31, and magnet steel 32 can be freely movable with rotor core 31 on the axial direction of rotor core 31, and
What it is in rotor core 31 is in the radial direction relatively-stationary with rotor core 31.
The stator includes stator core 41 and stator winding coil 42, it will be understood that the stator core 41 and stator
It is specifically to be dielectrically separated from frid 43 before insulation with insulation drop end 44 between winding coil 42, in the present embodiment,
Frid 43 and insulation drop end 44 are cooperated with the progress fastened up and down before the insulation.
Specifically, frid 43 is provided with the first flange at the position that it is connected with insulation drop end 44 before the insulation
431, correspondingly, the insulation drop end 44 is provided with the second flange 441 at the position that it is connected with frid 43 before insulation,
And when frid 43 is fastened with insulation drop end about 44 before insulation, the first flange 431 of frid 43 is arranged on before the insulation
The outside of second flange 441 of insulation drop end 44, and fitted with the second flange 441.Or, when frid 43 before insulation and absolutely
When edge drop end is fastened about 44, the first flange 431 of frid 43 is arranged on the second convex of insulation drop end 44 before the insulation
The inner side of edge 441, and fitted with the second flange 441.It is appreciated that using frid 43 before the insulation of above fit system and absolutely
Edge drop end 44, because both have coincidence interface portion, it is ensured that connecing after frid 43 is assembled with insulation drop end 44 before insulation
Touch and coordinate, so it is avoided that frid 43 and insulation drop end 44 are each before presence of the assembling process because of rigging error, and insulation
There are indivedual defective products from injection molding process and cause the situation of defective insulation to occur, that is, ensure that brushless, permanently electricity
The stability insulated in motivation 100 between stator core 41 and stator winding coil 42.
It is to play air-cooled dissipate for the rotor to high speed rotation that the fan 50, which is applied in the permanent magnet brushless electromotor 100,
The effect of heat.Specifically, the fan 50 is socketed in rotating shaft 60, and is specifically located at the inside of fore-stock 10, and institute
State fan 50 and multiple blades 51 are equably placed with the side towards rotor core 31, wherein the cross section of each blade 51 is equal
It is set to arc-shaped.That is, the plane where each blade 51 in the permanent magnet brushless electromotor 100 of the present embodiment on fan 50
Bent in one direction, such fan 50 in company with rotating shaft 60 during being rotated, the blade rotated at a high speed
51 promote air with the end face of its bending and produce wind, and it has been easy to flowing of the air on blade 51, correspondingly, so
Just improve the radiating efficiency to rotor when the fan 50 works.Especially when the quantity of blade 51 on fan 50 is more, adopt
With the claimed structure of fan 50 of the present embodiment, its effect is particularly evident.
Further, the blade 51 offers arc-shaped breach 511 on the side end face away from rotating shaft 62, and at this
Blade 51 is towards ellipticity breach 512 is offered on a side end face of rotor core 31, wherein the mouth of the arc-shaped breach 511
Footpath is more than the bore of ellipticity breach 512.It is appreciated that opening up by arc-shaped breach 511 and ellipticity breach 512, enters
One step air blades 51 towards rotor direction flowing, that is, thus further increase fan 50 work when formed it is air-cooled
Effect.
It is appreciated that the fore-stock 10 and the shell structure that after-poppet 20 is the permanent magnet brushless electromotor 100, in this reality
Apply fore-stock 10 in example to be fixedly connected with multiple stay bolts 210 with after-poppet 20, specifically with three stay bolts 210 come to preceding
Support 10 is attached fixation with after-poppet 20.Wherein, multiple first thermovents are offered on the periphery of the fore-stock 10
11, the after-poppet 20 offers multiple second thermovents 21 on the side end face away from fore-stock 10, in order to the permanent magnetism
The overall radiating of brushless motor 100.
In addition, the stator core 41 on the stator is specifically the position being assemblied between fore-stock 10 and after-poppet 20
Place, and carry out abutting cooperation with fore-stock 10, after-poppet 20 respectively.That is, the fore-stock 10 of the present embodiment, stator core 41,
After-poppet 20 is provided in the outside of the permanent magnet brushless electromotor 100 successively.In the present embodiment, the stator core 41
Multiple spacing bar grooves 411 are provided with periphery, and are corresponded with stay bolt 210；And current brackets 10 exist with after-poppet 20
The part being located at when being connected with stay bolt 210, in the stay bolt 210 between forward and backward support (10,20) is arranged on stator
In the spacing bar groove 411 of iron core 41, this assures the stability that the permanent magnet brushless electromotor 100 its structure is integrally assembled.
The rotating shaft 60 is the power output position of the permanent magnet brushless electromotor 100, and specifically, the rotating shaft 60 is keyway
The mode of cooperation, which is assemblied in, rotates iron core 31, and uses deep-groove ball axle respectively between the rotating shaft 60 and forward and backward support (10,20)
63 are held to be attached.Wherein, be coated with an insulating barrier (not shown) in the rotating shaft 60, with rotor core 31 insulated every
From, it will be understood that by the coating function of insulating barrier countershaft 60, carried out directly this assures rotor core 31 and rotating shaft 60
Tipping makes rotating shaft 60 and rotor core 31 completely isolated, has thus isolated rotor core 31 and existed with both rear insulation effects
The lower larger eddy current produced of high frequency operation, and then improve its insulation effect.
In addition, the two ends of rotating shaft 60 stretch out from fore-stock 10 with the part of after-poppet 20 respectively in the present embodiment, and should
The side end that fore-stock 10 is stretched out in rotating shaft 60 is provided with cramp joint mouthful 61, and a side end of stretching after-poppet 20 is provided with screw thread and connect
Mouth 62.So the permanent magnet brushless electromotor 100 is being assembled on electric chain saw in use, 61 come pairs of cramp joint mouthful in rotating shaft 60 can be used
Chain is driven, and oil pump is connected with hickey 62, to realize the lubrication to chain while drive chain.
To sum up, permanent magnet brushless electromotor provided by the utility model, by that will be used for stator core and stator winding
Frid is assembled with insulation drop end by the way of fastening up and down before the insulation that coil is dielectrically separated from so that before insulation
Frid partially overlaps handing-over with insulation drop end after assembling, and this assures between frid before insulation and the drop end that insulate
Sufficiently it is engaged, and then has ensured that the insulation of stator core and stator winding coil in the permanent magnet brushless electromotor is stable
Property；Meanwhile, by the way that the cross section of fan blade is set into arc-shaped, so facilitates fan and carried out at a high speed in company with rotating shaft
Flowing of the air on blade during rotation, and then improve the overall radiating effect of the permanent magnet brushless electromotor.
Preferred embodiment of the present utility model is the foregoing is only, the utility model is not limited to, it is all at this
Within the spirit and principle of utility model, any modification, equivalent substitution and improvements done etc. all should be included in the utility model
Within the scope of protection.
Claims (10)
1. a kind of permanent magnet brushless electromotor, it is characterised in that：Including
Rotor, the rotor includes rotor core, multiple magnet steel and rotor jacket, the circle of the rotor core successively from inside to outside
It is provided with side face in multiple wedge-shaped slots, and each wedge-shaped slot and is correspondingly arranged on a magnet steel；
Stator, the stator includes stator core and stator winding coil, is used between the stator core and stator winding coil
Frid is isolated with insulation drop end in the way of fastening up and down before insulation；
Rotating shaft, the rotating shaft is arranged on rotor core in the way of keyway coordinates；
Fore-stock, after-poppet, the fore-stock are oppositely arranged with after-poppet, and are fixedly connected with multiple stay bolts；
Fan, the fan is socketed in rotating shaft and located at the inside of fore-stock, and the fan is in the side towards rotor core
Multiple blades are equably placed with, wherein the cross section of each blade is disposed as arc-shaped.
2. permanent magnet brushless electromotor according to claim 1, it is characterised in that：Frid and insulation drop end before the insulation
Contact with each other and partly overlap in its junction.
3. permanent magnet brushless electromotor according to claim 2, it is characterised in that：Before the insulation frid its with after insulation
The first flange is provided with the position that frid is connected, correspondingly, the insulation drop end is connected at it with frid before insulation
Position at be provided with the second flange, and when frid above and below insulation drop end with fastening before insulation, frid before the insulation
First flange is arranged on the outside of the second flange of insulation drop end, and is fitted with the second flange.
4. permanent magnet brushless electromotor according to claim 1, it is characterised in that：Before the insulation frid its with after insulation
The first flange is provided with the position that frid is connected, correspondingly, the insulation drop end is connected at it with frid before insulation
Position at be provided with the second flange, and when frid above and below insulation drop end with fastening before insulation, frid before the insulation
First flange is arranged on the inner side of the second flange of insulation drop end, and is fitted with the second flange.
5. permanent magnet brushless electromotor according to claim 1, it is characterised in that：The blade of the fan is in remote rotating shaft
Offer arc-shaped breach on one side end face, and lack in the blade towards offering ellipticity on a side end face of rotor core
Mouthful, wherein the bore of the arc-shaped breach is more than the bore of ellipticity breach.
6. permanent magnet brushless electromotor according to claim 1, it is characterised in that：Offered on the periphery of the fore-stock
Multiple first thermovents, the after-poppet offers multiple second thermovents on the side end face away from fore-stock.
7. permanent magnet brushless electromotor according to claim 1, it is characterised in that：The two ends of the rotating shaft are respectively from fore-stock
Stretch out with after-poppet part, and a side end of rotating shaft stretching fore-stock is provided with cramp joint mouthful, stretches out the one of after-poppet
Side end is provided with hickey.
8. permanent magnet brushless electromotor according to claim 1, it is characterised in that：The stator core be arranged on fore-stock with
Cooperation is abutted with after-poppet at position between after-poppet and with fore-stock.
9. permanent magnet brushless electromotor according to claim 8, it is characterised in that：Set on the periphery of the stator core
There are multiple spacing bar grooves, and corresponded with stay bolt；And current brackets and after-poppet with stay bolt when being connected, the length
The part being located in bolt between forward and backward support is arranged in the spacing bar groove of stator core.
10. permanent magnet brushless electromotor according to claim 9, it is characterised in that：Used between the fore-stock and after-poppet
Three stay bolts of annular array are attached fixation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720243370.7U CN206506377U (en) | 2017-03-14 | 2017-03-14 | A kind of permanent magnet brushless electromotor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720243370.7U CN206506377U (en) | 2017-03-14 | 2017-03-14 | A kind of permanent magnet brushless electromotor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206506377U true CN206506377U (en) | 2017-09-19 |
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ID=59832968
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720243370.7U Active CN206506377U (en) | 2017-03-14 | 2017-03-14 | A kind of permanent magnet brushless electromotor |
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| Country | Link |
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| CN (1) | CN206506377U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109067093A (en) * | 2018-09-21 | 2018-12-21 | 中创机电科技(深圳)有限公司 | A kind of brushless motor |
-
2017
- 2017-03-14 CN CN201720243370.7U patent/CN206506377U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109067093A (en) * | 2018-09-21 | 2018-12-21 | 中创机电科技(深圳)有限公司 | A kind of brushless motor |
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