CN206272357U - A kind of improved brshless DC motor - Google Patents
A kind of improved brshless DC motor Download PDFInfo
- Publication number
- CN206272357U CN206272357U CN201621220991.5U CN201621220991U CN206272357U CN 206272357 U CN206272357 U CN 206272357U CN 201621220991 U CN201621220991 U CN 201621220991U CN 206272357 U CN206272357 U CN 206272357U
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- motor
- end cover
- rotor
- stator
- back end
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Abstract
The utility model is related to a kind of improved brshless DC motor,Including motor housing (1),Motor front end cover (2),Back end cover for motor (3),It is arranged on stator (4) and rotor (5) in motor housing (1),Machine shaft (6) and controller (7),Motor front end cover (2) and back end cover for motor (3) are sticked in the two ends of motor housing (1) respectively,Motor front end cover (2),Back end cover for motor (3) is respectively equipped with the first sealing rubber ring (13) with the joint of motor housing (1),Second sealing rubber ring (14),Rotor (5) is in stator (4),It is socketed on jointly on machine shaft (6),Stator (4) is with rotor (5) to that should have multiple,There is the discoid of hole (71) centered on controller (7),It is socketed near back end cover for motor (3) and by the hole (71) and machine shaft (6),Sheet metal (8) is provided between controller (7) and the rotor component of nearly back end cover for motor (3).The utility model improves overall permanence, operating efficiency and the cleannes of motor.
Description
Technical field
The utility model is related to technical field of motors, more particularly to a kind of improved brshless DC motor.
Background technology
Direct current generator includes brushed DC motor and brshless DC motor, and the brushless axle transmission of brshless DC motor point is electric
Machine and brushless outer driving motor.For brushless axle driving motor, rotor is located at stator inner wall, realizes that internal rotor is driven.But
Due to the presence of counter electromotive force, the torsional moment of rotor is often had a greatly reduced quality, so that operating efficiency is not high.
Meanwhile, controller can neither operationally receive electricity as the important component of driver in brshless DC motor
Magnetic disturbance, can not overheat again, once be subject to electromagnetic interference, then can cause motor cannot normal work, if overheat, then can cause
Associated components in controller are burned.
And, motor is generally operational in the more severe place of environment, a large amount of dust, iron filings etc. is had when in use small
Particle enters motor internal, and dust, iron filings enter motor stator, can have a strong impact on the insulation effect of stator coil winding enamel-covered wire
Really, fall on rotor magnet, can also influence the magnetic of magnet.
During the utility model is realized, the inventors discovered that prior art overcomes above-mentioned frequently with the following manner
Problem：1st, torsional moment is improved by way of increasing coil and winding density；2nd, place the controller into outside motor, remove it from
Electromagnetic interference and excessively it is heated；3rd, the drive end bearing bracket and rear end cap of motor are arranged to smooth plane and stop that dust etc. is tiny with this
The entrance of particle.
It is anti-electronic due to the increase of coil although magnetic flux density can be increased by the way of coil winding density is increased
Gesture is also increased as, so that the effective torque that rotor is finally subject to does not increase, causes final effect unobvious；By controller with
Motor is separated, though energy solve problem, must configure special control box to install and protect, is caused using inconvenience, and cost increases
Plus；Though motor front end cover and rear end cap are arranged into smooth plane can stop that fine particle enters from the front/rear end of motor,
But end face can still have that the little particles such as dust enter with the junction of electric machine casing, and such setting is unfavorable for motor
Performance of ventilation and heat dispersion.
Therefore, it is necessary to seek a kind of more efficient way to solve the above problems.
Utility model content
Main purpose of the present utility model is to provide a kind of improved brshless DC motor, by correspondence increase stator with
The number of rotor improves torsional moment, and controller is arranged into center the discoid of hole, be sheathed in rotating shaft, and in stator
Sheet metal is set between controller to solve the electromagnetic interference problem of controller, realizes lowering the temperature using small fan, improved with this
The operating efficiency of brshless DC motor；The entrance of dust granules etc. is prevented by setting sealing rubber ring and screen pack, electricity is improved
Cleannes inside machine.
To achieve the above objectives, the technical solution adopted in the utility model is：A kind of improved brshless DC motor, including
Motor housing, motor front end cover, back end cover for motor, the stator being arranged in the motor housing and rotor, machine shaft and control
Device processed, it is characterised in that：The motor front end cover and back end cover for motor are sticked in the two ends of the motor housing, the electricity respectively
Machine drive end bearing bracket, back end cover for motor are provided with sealing rubber ring with the motor housing joint, and the rotor is located in the stator,
And be socketed on jointly on the machine shaft, the stator, to that should have multiple, there is the circle in hole with rotor centered on the controller
Plate-like, with the machine shaft is socketed near the back end cover for motor and by the hole, the controller and the closely motor
Sheet metal is provided between the rotor component of rear end cap.
Further, the motor housing is cylindrical tube shape, and its both ends of the surface forms equal-sized circumferencial direction respectively
First groove, the second groove, the motor front end cover, back end cover for motor form flange collar corresponding with respective slot respectively, described
Sealing rubber ring is located in the groove, and width is slightly less than the recess width, so that the groove is tightly engaged into flange collar.
Further, the stator includes annulus and the multiple teeth portion extended inwardly to form by the annulus inwall,
The teeth portion is uniformly distributed on the annulus inwall, and the end of the teeth portion symmetrically launches formation in the lateral direction to be had
Certain radian, and along the stator axial direction extend boots portion, multiple boots portions enclose the chamber for accommodating the rotor
Body.
Further, the stator is corresponding with rotor is set to two groups.
Further, the motor rear end is covered and is provided with radiating groove, and the rearmost end of the machine shaft is provided with and is coaxial therewith
Fan.
Further, the machine shaft foremost between the rotor component of the nearly motor front end cover, it is described
One layer of screen pack is respectively provided between the rearmost end of fan and the machine shaft.
Further, the controller is provided with the position sensor for measuring the rotor-position.
Advantageous Effects of the present utility model are as follows：
1st, by increasing the corresponding number of stator and rotor, the torsional moment that increased rotating shaft is made a concerted effort, and improves motor
Operating efficiency；
2nd, controller is arranged to discoid with machine shaft coaxial rotating, and position sensor is arranged at controller
On, the inconvenience for controller being separated with motor and being brought on the one hand is avoided, on the other hand will in the prior art standing on motor
Position sensor located at rotation controller on, both having met position sensor can obtain the demand of rotor-position, again cause
Installation operation is convenient succinct；
3rd, the sheet metal set between controller is combined with one group of rotor near back end cover for motor can absorb
The magnetic field that electric machine rotor is produced when working, so that interference of the controller from electromagnetism；
4th, fan is set in machine shaft rear end, can be rotated with rotating shaft, controller can be dropped well
Temperature, increased performance of ventilation and heat dispersion so that the overall performance of motor is greatly improved.
5th, can play and prevent fine particle from entering in motor in end cap and electric machine casing junction setting sealing rubber ring
Effect, screen pack is set between two fans again, can further prevent the entrance of dust granules etc., improves the cleaning of motor internal
Degree.
Brief description of the drawings
Fig. 1 is the motor overall structure diagram according to a preferred embodiment of the present utility model.
Fig. 2 (a) is the structure chart of electric machine casing.
Fig. 2 (b) -2 (c) is the connection diagram of electric machine casing and end cap.
Fig. 3 is the stator structure schematic diagram according to a preferred embodiment of the present utility model.
Specific embodiment
Hereinafter describe for disclosing the utility model so that those skilled in the art can realize the utility model.Hereinafter retouch
Preferred embodiment in stating is only used as citing, it may occur to persons skilled in the art that other obvious modifications.
As Figure 1-3, it is according to a kind of a kind of embodiment structure of improved brshless DC motor offer of the utility model
Make, it includes motor housing 1, motor front end cover 2, back end cover for motor 3, the stator 4 and rotor that are arranged in the motor housing 1
5th, machine shaft 6 and controller 7, the motor front end cover 2 and back end cover for motor 3 are respectively positioned at the two ends of the motor housing 1.
As shown in Fig. 2 (a) -2 (c), the motor front end cover 2 and back end cover for motor 3 using by the way of engaging with the electricity
Machine shell 1 is connected, and the motor housing 1 is cylindrical tube shape, and its both ends of the surface forms the first groove 11, second of circumferencial direction respectively
Groove 12, first groove 11 is equal with the size width of the second groove 12, and the motor front end cover 2 forms recessed with described first
Corresponding first flange collar 21 of groove 11, the back end cover for motor 3 forms second flange collar 31 corresponding with second groove 12, described
Width is provided with groove 11,12 and is slightly less than the first seal washer 13 of the recess width, the second seal washer 14, to cause institute
Stating motor front end cover 2, back end cover for motor 3 can closely engage with the motor housing 1, increase the sealing of contact, effectively prevent
The particles such as dust enter in motor housing 1.The seal washer can be sealing rubber ring.
In addition, catching groove can be provided with the motor front end cover 2, the left and right sidewall of back end cover for motor 3, to cause operator
During member's dismounting electric machine casing, finger can firmly be carried out dismounting through the catching groove to facilitate.It is corresponding, 1 liang of the motor housing
Two indents are respectively arranged with the side wall at end, during facilitating operating personnel to dismantle electric machine casing, by the indent to the electricity
Machine shell applies the steady pressure opposite with the catching groove direction of motion, carries out dismounting.
The rotor 5 is in the stator 4, and cooperation is socketed on the machine shaft 6, the stator 4 and rotor 5
To that should have multiple, it is preferred that the stator 4 is corresponding with rotor 5 to be set to two groups.There is the disk in hole 71 centered on the controller 7
Shape, is socketed by the hole 71 with the machine shaft 6, the rotor component of the controller 7 and the nearly back end cover for motor 3
Between be provided with sheet metal 8, the back end cover for motor 3 is provided with radiating groove 32.
Further, the stator 4 includes annulus 41 and the multiple extended inwardly to form by the inwall of the annulus 41
Teeth portion 42, the teeth portion 42 is uniformly distributed on the inwall of the annulus 41, and the end of the teeth portion 42 is right in the lateral direction
Claim launch formed have certain radian, and along the stator axial direction extend boots portion 43, multiple boots portions 43 enclose
Into the cavity for accommodating the rotor 5.
Further, the rearmost end of the machine shaft 6 is provided with the fan 10 for being coaxial therewith rotation, when machine shaft 6 revolves
When turning, fan 10 also follows rotation, so as to increase the performance of ventilation and heat dispersion of motor internal, can well prevent controller from overheating.
It is noted that also cooling piece can be electrically connected in the end face of the nearly back end cover for motor 3 of the controller 7,
And the chill surface laminating controller 7 of the cooling piece, radiating surface is generated heat in controller 7 near the back end cover for motor 3
When, the chill surface of cooling piece can siphon away the heat of controller, and be radiated by radiating surface and back end cover for motor, further improve
The heat dispersion of controller.
The machine shaft 6 foremost between the rotor component of the nearly motor front end cover 2, the fan 10 with
One layer of screen pack 111, screen pack 112 are respectively provided between the rearmost end of the machine shaft 6, can prevent molecule from entering motor
It is internal.
Further, the controller 7 is provided with the position sensor 72 for measuring the position of the rotor 5.
The embodiment increases the corresponding number of stator and rotor, although be not avoided that each anti-to the generation of rotor inter-module
Electromotive force, but for every group of rotor component, the effective rotation torque of its corresponding rotor, so multipair rotor component
When being co-located at same machine shaft, the Finite rotation moment of torsion for producing with joint efforts will increase, namely increased the twisting resistance of rotating shaft
Square is made a concerted effort, so as to improve the operating efficiency of motor；Controller is arranged to discoid with rotating shaft coaxial rotating, and by position
Sensor is arranged on controller, on the one hand avoids and the inconvenience for bringing is separated with motor by controller, on the other hand will be existing
In technology standing on the position sensor on motor on the controller of rotation, both having met position sensor can obtain rotor
The demand of position, causes that installation operation is convenient succinct again；Combined with one group of rotor near back end cover for motor in controller
Between the sheet metal that sets can absorb the magnetic field that produces when electric machine rotor works so that controller is from the dry of electromagnetism
Disturb；Machine shaft rear end set fan, can be rotated with rotating shaft, increased performance of ventilation and heat dispersion so that motor it is whole
Body performance is greatly improved；Can play and prevent fine particle from entering in end cap and electric machine casing junction setting sealing rubber ring
Effect in motor, sets screen pack again between front and rear cover, can further prevent the entrance of dust granules etc., improves motor
Internal cleannes.
General principle of the present utility model, principal character and advantage of the present utility model has been shown and described above.One's own profession
The technical staff of industry it should be appreciated that the utility model is not restricted to the described embodiments, described in above-described embodiment and specification
Simply principle of the present utility model, the utility model also has respectively on the premise of the utility model spirit and scope are not departed from
Changes and improvements are planted, these changes and improvements are both fallen within the range of claimed the utility model.The utility model requirement
Protection domain defined by appending claims and its equivalent.
Claims (7)
1. a kind of improved brshless DC motor, including motor housing (1), motor front end cover (2), back end cover for motor (3), setting
Stator (4) and rotor (5), machine shaft (6) and controller (7) in the motor housing (1), it is characterised in that：It is described
Motor front end cover (2) and back end cover for motor (3) are sticked in the two ends of the motor housing (1), the motor front end cover respectively
(2), back end cover for motor (3) is respectively equipped with the first sealing rubber ring (13), the second sealing with the joint of the motor housing (1)
Rubber ring (14), the rotor (5) is socketed on the machine shaft (6), the stator jointly in the stator (4)
(4) there is the discoid of hole (71) centered on the controller (7) to that there should be multiple with rotor (5), near the back end cover for motor
(3) and by the hole (71) it is socketed with the machine shaft (6), the controller (7) and the closely back end cover for motor (3)
Sheet metal (8) is provided between rotor component.
2. brshless DC motor according to claim 1, it is characterised in that：The motor housing (1) is cylindrical tube shape, its
Both ends of the surface form first groove (11) of equal-sized circumferencial direction, the second groove (12), the motor front end cover (2) respectively
The first flange collar (21) corresponding with first groove (11), the back end cover for motor (3) is formed to be formed and second groove
(12) corresponding second flange collar (31), first sealing rubber ring (13) is interior positioned at first groove (11), and described second
In second groove (12), the sealing rubber ring width is slightly less than recess width to sealing rubber ring (14), so that institute
Groove is stated to be tightly engaged into flange collar.
3. brshless DC motor according to claim 2, it is characterised in that：The stator (4) including annulus (41) and
The multiple teeth portion (42) extended inwardly to form by the annulus (41) inwall, the teeth portion (42) is uniformly distributed in the ring
On shape portion (41) inwall, the end of the teeth portion (42) symmetrically launches to be formed have certain radian in the lateral direction, and along described
The boots portion (43) that the axial direction of stator (4) extends, multiple boots portions (43) enclose the cavity for accommodating the rotor (5).
4. brshless DC motor according to claim 3, it is characterised in that：The stator (4) is corresponding with rotor (5) to be set to
Two groups.
5. brshless DC motor according to claim 1, it is characterised in that：The back end cover for motor (3) is provided with radiating
Groove (32), the rearmost end of the machine shaft (6) is provided with the fan (10) coaxial with the machine shaft (6).
6. brshless DC motor according to claim 5, it is characterised in that：The machine shaft (6) foremost with closely
It is each between the rotor component of the motor front end cover (2), between the fan (10) and the rearmost end of the machine shaft (6)
It is provided with one layer of screen pack (111,112).
7. brshless DC motor according to claim 6, it is characterised in that：The controller (7) is provided with for measuring
The position sensor (72) of rotor (5) position.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621220991.5U CN206272357U (en) | 2016-11-09 | 2016-11-09 | A kind of improved brshless DC motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621220991.5U CN206272357U (en) | 2016-11-09 | 2016-11-09 | A kind of improved brshless DC motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206272357U true CN206272357U (en) | 2017-06-20 |
Family
ID=59041176
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621220991.5U Expired - Fee Related CN206272357U (en) | 2016-11-09 | 2016-11-09 | A kind of improved brshless DC motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206272357U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107257189A (en) * | 2017-08-16 | 2017-10-17 | 贵州航天林泉电机有限公司 | A kind of integrated immersion oil brshless DC motor |
| WO2020107891A1 (en) * | 2018-11-29 | 2020-06-04 | 山西百晓可瑞科技有限公司 | Electric motor |
-
2016
- 2016-11-09 CN CN201621220991.5U patent/CN206272357U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107257189A (en) * | 2017-08-16 | 2017-10-17 | 贵州航天林泉电机有限公司 | A kind of integrated immersion oil brshless DC motor |
| WO2020107891A1 (en) * | 2018-11-29 | 2020-06-04 | 山西百晓可瑞科技有限公司 | Electric motor |
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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: 20170620 Termination date: 20181109 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |