CN205509812U - High -efficient brushless DC motor - Google Patents
High -efficient brushless DC motor Download PDFInfo
- Publication number
- CN205509812U CN205509812U CN201620284037.6U CN201620284037U CN205509812U CN 205509812 U CN205509812 U CN 205509812U CN 201620284037 U CN201620284037 U CN 201620284037U CN 205509812 U CN205509812 U CN 205509812U
- Authority
- CN
- China
- Prior art keywords
- stator core
- motor
- teeth portion
- brshless
- efficient
- 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.)
- Active
Links
Landscapes
- Iron Core Of Rotating Electric Machines (AREA)
Abstract
The utility model discloses a high -efficient brushless DC motor, this motor includes: a stator, including stator core and winding, stator core includes annular yoke portion and extend the tooth portion that sets up to its axle center in yoke portion, stator core includes along the even a plurality of tooth portions that set up of circumferencial direction, be provided with fixed notch on the tip of every tooth portion, the center of fixed notch and the center unanimity of tooth portion, the winding of fixed notch twines in every tooth portion, the cross -section of the head of tooth portion is the arc, the cephalization hole of a plurality of tooth portions, stator core's excircle size is 2.9 with the ratio of stator core's hole size, stator core's excircle size is 3.5 with the ratio of stator core's thickness size, the width size of stator core tooth portion is 2.4 with the ratio of the width size of stator core yoke portion, the rotor, it sets up in stator core's hole. The utility model relates to a high -efficient brushless DC motor has acquireed higher efficiency value in the finite space, more energy -conserving.
Description
Technical field
This utility model belongs to technical field of motors, is specifically related to a kind of efficiently brushless dc
Machine.
Background technology
At present, brushless electric machine includes stator and rotor, and stator includes stator core and winding, fixed
Sub-iron core is formed along motor is axially stacked by stator chip.Stator core include ring-type yoke portion with
And the teeth portion inwardly stretched out from yoke portion, winding is wound in teeth portion.In prior art, brushless electricity
The efficiency value of machine is relatively low, it is impossible to meet production requirement.
Utility model content
In order to solve above-mentioned technical problem, the utility model proposes a kind of efficiently brushless direct-current
Motor, this brshless DC motor obtains greater efficiency value in the confined space, more energy efficient.
In order to achieve the above object, the technical solution of the utility model is as follows:
A kind of efficiently brshless DC motor includes: stator, including stator core and winding, stator
Iron core includes the yoke portion of annular and to the teeth portion that its axle center is extended, stator ferrum in yoke portion
Core includes the multiple teeth portion being along the circumferential direction uniformly arranged, and is provided with on the end of each teeth portion
Fixing notch, the center of fixing notch is consistent with the center of teeth portion, and the winding of fixing notch is wound around
In each teeth portion, the cross section of the head of teeth portion is curved, and the head of multiple teeth portion forms endoporus,
The center of endoporus is consistent with the center of stator core cylindrical, the excircle dimension of stator core and stator
The ratio of the hole size of iron core is 2.9, the excircle dimension of stator core and the thickness of stator core
The ratio of degree size is 3.5, the width dimensions of stator core teeth portion and the width in stator core yoke portion
The ratio of degree size is 2.4；Rotor, it is arranged in the endoporus of stator core.
The invention discloses a kind of efficiently brshless DC motor, this motor application is in a high-power
Domestic vacuum cleaners, owing to the efficiency index of this motor requires height, enter according to its original structure characteristic
Row optimizes design, makes the copper loss of motor, iron loss and windmill be lost on the basis of existing structure
Having a substantially reduction, the variable loss of matching point and the ratio of fixed loss, finally exist simultaneously
The working region (600W～10000W) required obtains higher efficiency value.
On the basis of technique scheme, also can do and improve as follows:
As preferred scheme, the diameter of bore of stator core is 24mm, the thickness of stator core
Spending a size of 20mm, the width dimensions of stator core teeth portion is 19.4mm, stator core yoke
The width dimensions in portion is 2.4mm.
Use above-mentioned preferred scheme, by control structure design parameter, can preferably meet
80% efficiency exported under the conditions of existing volume (weight) in 600W～1000W power bracket is wanted
Ask.
As preferred scheme, the both sides of the head of teeth portion are circumferentially extending be provided with convex
Block, the end of projection is arc.
Using above-mentioned preferred scheme, the end of projection is arc, it is to avoid produce local magnetic saturation,
Avoid generating heat seriously during motor high-speed rotation.
As preferred scheme, the projection closed on mutually of arbitrary neighborhood teeth portion circumferencial direction away from
From for 3-5mm.
Use above-mentioned preferred scheme, stator core and the size design of rotor, motor can be made
Efficiency reach more than 80%.
As preferred scheme, stator core is 0.5-0.75mm with the gap of rotor.
Use above-mentioned preferred scheme, stator core and the size design of rotor, motor can be made
Efficiency reach more than 80%.
As preferred scheme, rotor is arranged in the endoporus of stator core by support.
Using above-mentioned preferred scheme, it is convenient to install.
As preferred scheme, the pole embrace of stator core is 0.83.
Use above-mentioned preferred scheme, control another main points that inductance value is design of electrical motor.Cause
Use the design of fractional-slot and winding and around scheme, preferably decrease the length of magnetic path, select little
Pole embrace, the pilot coiling circle number of turn all brings obvious inductance and resistance value declines,
Copper loss is less, can drive smoothly by position sensor and position-sensor-free driver,
And bigger output power value and efficiency value can be provided.
As preferred scheme, rotor is the hollow cylindrical permanent magnet with preseting length, turns
Being provided with adapter sleeve on the outer wall of son, permanent magnet bonded neodymium-iron-boron, adapter sleeve is by carbon fibre material
Make.
Using above-mentioned preferred scheme, this structure to form rotor with rotating shaft combination, rotating shaft material can
Select the preferable carbon steel of magnetic conductivity, it is possible to select non-magnetic rustless steel；And increase carbon fiber system
The adapter sleeve become is bonded in the outer surface of magnet steel, and to avoid magnet steel to get rid of under the influence of centrifugal force de-, and
Dynamic balancing can be done in the inner circle of both ends of the surface adapter sleeve, improve stability and the safety of structure
Energy.
As preferred scheme, rotor one end axially is connected with hollow cylindrical permanent magnetism
Body.
Use above-mentioned preferred scheme, at the axially increased permanent magnet of rotor, have position at motor
Sensor magnetic field is provided during sensor construction.
Accompanying drawing explanation
The stator knot of a kind of efficient brshless DC motor that Fig. 1 provides for this utility model embodiment
Structure schematic diagram.
Wherein: 1 stator, 11 stator cores, 12 windings, 13 yoke portions, 14 teeth portion, 15 solid
Determine notch, 16 projections, 2 rotors, 3 supports.
Detailed description of the invention
Describe preferred implementation of the present utility model below in conjunction with the accompanying drawings in detail.
In order to reach the purpose of this utility model, the some of them of a kind of efficient brshless DC motor
In embodiment,
As it is shown in figure 1, a kind of efficiently brshless DC motor includes: stator 1, rotor 2 (figure
Not shown in) and support 3 (not shown).
Stator 1 includes stator core 11 and winding 12 (not shown), stator core 11
Including yoke portion 13 and the teeth portion 14 extended to its axle center in yoke portion 13 of annular, fixed
Sub-iron core 11 includes three teeth portion 14 being along the circumferential direction uniformly arranged, in each teeth portion 14
End on be provided with fixing notch 15, the center of fixing notch 15 and the center one of teeth portion 14
Causing, the winding 12 of fixing notch 15 is wound in each teeth portion 14, the head of teeth portion 14
Cross section is curved, and the head of multiple teeth portion 14 forms endoporus, the center of endoporus and stator core
The center of 11 cylindricals is consistent, the excircle dimension of stator core 11 and the endoporus chi of stator core 11
Very little ratio is 2.9, the excircle dimension of stator core 11 and the gauge of stator core 11
Ratio be 3.5, the width in the width dimensions of stator core 11 teeth portion and stator core 11 yoke portion
The ratio of degree size is 2.4.
Rotor 2 is arranged in the endoporus of stator core 11 by support 3.
In the present embodiment, the diameter of bore of stator core 11 is 24mm, stator core 11
Gauge be 20mm, the width dimensions of stator core 11 teeth portion is 19.4mm, stator
The width dimensions in iron core 11 yoke portion is 2.4mm.
The present invention is led to compared to prior art, fixing notch 15 side of stator core 11 cylindrical
Cross location and stator core 11 is integrally fixed by welding method so that punching closed assembly is the closeest
Real, on the other hand leave space and vent passages is provided, simple and reasonable, it is simple to peace installation and dismantling
Unload.
The invention discloses a kind of efficiently brshless DC motor, this motor application is in a high-power
Domestic vacuum cleaners, owing to the efficiency index of this motor requires height, enter according to its original structure characteristic
Row optimizes design, makes the copper loss of motor, iron loss and windmill be lost on the basis of existing structure
Having a substantially reduction, the variable loss of matching point and the ratio of fixed loss, finally exist simultaneously
The working region (600W～10000W) required obtains higher efficiency value, passes through control structure
Design parameter, can preferably meet output 600W～1000W under the conditions of existing volume (weight)
80% efficiency requirements in power bracket.
In order to optimize implementation result of the present utility model further, at other embodiment
In, remaining feature technology is identical, and difference is, the both sides of the head of teeth portion 14 are along circle
Circumferential direction is extended projection 16, and the end of projection 16 is arc.
Using the scheme of above preferred embodiment, the end of projection 16 is arc, it is to avoid produce
Locally magnetic saturation, it is to avoid during motor high-speed rotation, heating is serious.
Further, the projection 14 closed on mutually of arbitrary neighborhood teeth portion 14 is in the distance of circumferencial direction
For 3-5mm.
Use the scheme of above preferred embodiment, stator core 11 and the size design of rotor 2,
The efficiency that can make motor reaches more than 80%.
In order to optimize implementation result of the present utility model further, at other embodiment
In, remaining feature technology is identical, and difference is, between stator core 11 and rotor 2
Gap is 0.5-0.75mm.
Use the scheme of above preferred embodiment, stator core 11 and the size design of rotor,
The efficiency that can make motor reaches more than 80%.
In order to optimize implementation result of the present utility model further, at other embodiment
In, remaining feature technology is identical, and difference is, the pole embrace of stator core 11 is
0.83。
Use above preferred embodiment scheme, control inductance value be design of electrical motor another want
Point.Because using the design of fractional-slot and winding and around scheme, preferably decrease the length of magnetic path,
Little pole embrace, the pilot coiling circle number of turn is selected all to bring obvious inductance and resistance value
Declining, copper loss is less, can be smooth with position sensor and position-sensor-free driver
Drive, and bigger output power value and efficiency value can be provided.
In order to optimize implementation result of the present utility model further, at other embodiment
In, remaining feature technology is identical, and difference is, rotor 2 is for have in preseting length
Hollow-cylindrical permanent magnet (not shown), the outer wall of rotor 2 is provided with adapter sleeve (figure
Not shown in), permanent magnet bonded neodymium-iron-boron, adapter sleeve is made up of carbon fibre material.
The scheme of above preferred embodiment, this structure is used to form rotor, rotating shaft with rotating shaft combination
Material can be selected for the preferable carbon steel of magnetic conductivity, it is possible to selects non-magnetic rustless steel；And increase carbon
The adapter sleeve that fiber is made is bonded in the outer surface of magnet steel and avoids magnet steel under the influence of centrifugal force
Get rid of de-, and dynamic balancing can be done in the inner circle of both ends of the surface adapter sleeve, improve structure stability and
Security performance.
Further, rotor 2 one end axially is connected with hollow cylindrical permanent magnet.
Use the scheme of above preferred embodiment, at the axially increased permanent magnet of rotor 2, at electricity
Sensor magnetic field is provided during machine position sensor structure.
Novel preferred implementation, it is noted that for those of ordinary skill in the art
For, on the premise of creating design without departing from this utility model, it is also possible to make some changes
Shape and improvement, these broadly fall into protection domain of the present utility model.
Claims (9)
1. an efficient brshless DC motor, it is characterised in that including:
Stator, including stator core and winding, described stator core include annular yoke portion and
Teeth portion extended to its axle center in described yoke portion, described stator core includes the most equal
Multiple teeth portion of even setting, are provided with fixing notch, described fixing groove on the end of each teeth portion
The center of mouth is consistent with the center of described teeth portion, and the described winding of described fixing notch is wound in each
In teeth portion, the cross section of the head of described teeth portion is curved, and the head of multiple described teeth portion forms endoporus,
The center of described endoporus is consistent with the center of described stator core cylindrical, the cylindrical of described stator core
Size is 2.9 with the ratio of the hole size of described stator core, the excircle dimension of described stator core
It is 3.5 with the ratio of the gauge of described stator core, the width dimensions of described stator core teeth portion
It is 2.4 with the ratio of the width dimensions in described stator core yoke portion；
Rotor, it is arranged in the endoporus of described stator core.
Efficient brshless DC motor the most according to claim 1, it is characterised in that described stator
The outside diameter of iron core is 70mm, and the diameter of bore of described stator core is 24mm, described stator
The gauge of iron core is 20mm, and the width dimensions of described stator core teeth portion is 19.4mm, institute
The width dimensions stating stator core yoke portion is 2.4mm.
Efficient brshless DC motor the most according to claim 1 and 2, it is characterised in that described
The circumferentially extending projection that is provided with in the both sides of the head of teeth portion, the end of described projection is arc.
Efficient brshless DC motor the most according to claim 3, it is characterised in that arbitrary neighborhood
The projection closed on mutually of teeth portion is 3-5mm in the distance of circumferencial direction.
Efficient brshless DC motor the most according to claim 1 and 2, it is characterised in that described
Stator core is 0.5-0.75mm with the gap of described rotor.
Efficient brshless DC motor the most according to claim 1 and 2, it is characterised in that described
Rotor is arranged in the endoporus of described stator core by support.
Efficient brshless DC motor the most according to claim 1 and 2, it is characterised in that described
The pole embrace of stator core is 0.83.
Efficient brshless DC motor the most according to claim 1 and 2, it is characterised in that described
Rotor is the hollow cylindrical permanent magnet with preseting length, the outer wall of described rotor is provided with tight
Gu set, described permanent magnet bonded neodymium-iron-boron, described adapter sleeve is made up of carbon fibre material.
Efficient brshless DC motor the most according to claim 8, it is characterised in that described rotor
One end axially is connected with hollow cylindrical permanent magnet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620284037.6U CN205509812U (en) | 2016-04-07 | 2016-04-07 | High -efficient brushless DC motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620284037.6U CN205509812U (en) | 2016-04-07 | 2016-04-07 | High -efficient brushless DC motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205509812U true CN205509812U (en) | 2016-08-24 |
Family
ID=56736134
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620284037.6U Active CN205509812U (en) | 2016-04-07 | 2016-04-07 | High -efficient brushless DC motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205509812U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106655559A (en) * | 2017-01-21 | 2017-05-10 | 浙江悍马光电设备有限公司 | Three-phase dust catcher motor structure |
| CN106972655A (en) * | 2017-01-21 | 2017-07-21 | 浙江悍马光电设备有限公司 | Three-phase brushless motor of dust collector |
| CN108134458A (en) * | 2017-09-14 | 2018-06-08 | 炬大科技有限公司 | A kind of brushless motor stator iron core and brushless motor |
| CN109088489A (en) * | 2018-09-21 | 2018-12-25 | 上海交通大学 | stator for wind-driven generator |
| CN110311528A (en) * | 2019-07-08 | 2019-10-08 | 苏州市润豪电机有限公司 | A kind of two extremely embedded brshless DC motors |
| CN112350464A (en) * | 2019-08-06 | 2021-02-09 | 江苏美的清洁电器股份有限公司 | Stator core, stator and motor |
-
2016
- 2016-04-07 CN CN201620284037.6U patent/CN205509812U/en active Active
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106655559A (en) * | 2017-01-21 | 2017-05-10 | 浙江悍马光电设备有限公司 | Three-phase dust catcher motor structure |
| CN106972655A (en) * | 2017-01-21 | 2017-07-21 | 浙江悍马光电设备有限公司 | Three-phase brushless motor of dust collector |
| CN106655559B (en) * | 2017-01-21 | 2019-01-04 | 浙江悍马光电设备有限公司 | Three-phase motor of dust collector structure |
| CN108134458A (en) * | 2017-09-14 | 2018-06-08 | 炬大科技有限公司 | A kind of brushless motor stator iron core and brushless motor |
| CN109088489A (en) * | 2018-09-21 | 2018-12-25 | 上海交通大学 | stator for wind-driven generator |
| CN110311528A (en) * | 2019-07-08 | 2019-10-08 | 苏州市润豪电机有限公司 | A kind of two extremely embedded brshless DC motors |
| CN112350464A (en) * | 2019-08-06 | 2021-02-09 | 江苏美的清洁电器股份有限公司 | Stator core, stator and motor |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN205509812U (en) | High -efficient brushless DC motor | |
| EP2587630B1 (en) | Slotless amorphous ferroalloy motor with radial magnetic circuit and manufacturing method thereof | |
| CN205911841U (en) | Stator core reaches high strength brushless DC motor including this stator core | |
| WO2016058446A1 (en) | Motor | |
| CN102723834A (en) | Permanent magnet synchronous motor | |
| CN205622461U (en) | Device of making an uproar falls in brushless motor | |
| CN104682641A (en) | Double-stator axial magnetic field motor | |
| CN101980433A (en) | Wedge-shaped stator core outer permanent-magnetic synchronous motor of circumferential phase shift and axial segmentation | |
| CN105680587B (en) | Brushless noise reducing device for motor of dust collector | |
| WO2017177740A1 (en) | Permanent magnet motor | |
| CN204652188U (en) | For the disk permanent magnet generator of generating set | |
| CN202586689U (en) | Permanent magnet synchronous motor | |
| CN205389166U (en) | High -speed brushless direct current motor | |
| CN104467339B (en) | Linear vibration motor with gravity compensation function | |
| CN209608524U (en) | A kind of ferrite high frequency material makees the DC brushless motor of stator | |
| CN107742931A (en) | Motor stator core | |
| CN208596974U (en) | Rotor assembly and motor | |
| CN208767947U (en) | 12/8 pole switching reluctance motor | |
| CN107124055B (en) | Rotor of compressor, permanent magnet motor and compressor | |
| CN105553213A (en) | High-speed brushless DC motor | |
| CN102237736A (en) | Novel permanent magnet motor | |
| CN202076915U (en) | Rotor of excitation direct-current (DC) brushless motor | |
| CN110311484A (en) | A kind of high-speed permanent magnet motor water cooling short stator | |
| CN206250941U (en) | A kind of DC brushless motor | |
| CN103036327B (en) | The split type stator of AC permanent-magnet Adjustable Speed Synchronous Motor |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: 215000 No. 15, linbu street, Weiting street, Suzhou Industrial Park, Suzhou City, Jiangsu Province Patentee after: Xingdesheng Technology (Suzhou) Co., Ltd Address before: 215122 No. 15, linbu street, Weiting street, Suzhou Industrial Park, Suzhou City, Jiangsu Province Patentee before: Suzhou Industrial Park xingdesheng Motor Co., Ltd |