CN105406634B - Micro digital air suction motor - Google Patents
Micro digital air suction motor Download PDFInfo
- Publication number
- CN105406634B CN105406634B CN201510948224.XA CN201510948224A CN105406634B CN 105406634 B CN105406634 B CN 105406634B CN 201510948224 A CN201510948224 A CN 201510948224A CN 105406634 B CN105406634 B CN 105406634B
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- China
- Prior art keywords
- electric machine
- drive end
- machine casing
- stator
- bearing bracket
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Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
- H02K5/20—Casings or enclosures characterised by the shape, form or construction thereof with channels or ducts for flow of cooling medium
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K9/00—Arrangements for cooling or ventilating
- H02K9/02—Arrangements for cooling or ventilating by ambient air flowing through the machine
- H02K9/04—Arrangements for cooling or ventilating by ambient air flowing through the machine having means for generating a flow of cooling medium
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Motor Or Generator Cooling System (AREA)
- Motor Or Generator Frames (AREA)
Abstract
The invention discloses a micro digital air suction motor. The micro digital air suction motor comprises a motor shell, a stator assembly and a rotor assembly, wherein the stator assembly and the rotor assembly are arranged in the motor shell; a front end cover is fixedly arranged at the front end of the motor shell; the outer diameter of the front end cover is less than the inner diameter of the motor shell; two axially symmetric connectors are arranged between the outer peripheral wall and the inner wall of the motor shell; two diversion inclined surfaces are arranged at the upper ends of the connectors; the outer peripheral wall of the front end cover axially extends inwards to form an air deflection surface; the inner wall of the motor shell, the diversion inclined surfaces and the air deflection surface are enclosed to form a trumpet-shaped diversion channel; the lower ends of the connectors extend toward the rear end of the motor shell; and the stator assembly is fixedly arranged on the extension parts of the connectors.
Description
Technical field
The present invention relates to a kind of brushless electric machine for vacuum cleaner, specifically a kind of Miniature digital induced-draught electric motor.
Background technology
With the raising of quality of the life, the use of vacuum cleaner is also more and more universal.Vacuum cleaner has dry suction dust suction by species point
Device and Wet-dry vacuum cleaner, and motor of dust collector is the heart of vacuum cleaner.Motor of dust collector mainly has two parts to constitute：Motor
Part and fan section.Motor of dust collector is very high to rotation speed requirements, with the development of motor technology, has the motor of brush configuration gradually
Cannot meet the requirement of existing vacuum cleaner, and brushless motor speed is high, small volume, easy care, using increasingly in vacuum cleaner
Extensively.
Patent of invention title：A kind of brushless electric machine for vacuum cleaner, number of patent application：201310024896.2 disclose
A kind of brushless electric machine for vacuum cleaner, including controller, commutator, it is embedded with the stator core of winding and in stator core
The rotor core in portion and the housing for consolidating the stator core and the rotor core, are embedded with the stator core
Winding described in three groups, rotor core middle part periphery sintering has rubidium ferrum boron magnet steel, and the adjacent magnet steel points to axis and is located
The magnetic pole in direction is different, and the magnet steel periphery is provided with stainless stirrup, and the controller includes driver and position detection chip, institute
Commutator is stated including transformator and AC/DC changeover switch.The patent effectively increases motor in outer rotor using stator in interior mode
Rotating speed, using position detection chip motor position is detected, effectively increases the precision of position detection.
With the development of cleaner technology, some are used for the hand held cleaner demand of the small spaces such as automobile also increasingly
Greatly.But hand held cleaner needs small volume, lightweight, suction greatly, and existing brushless electric machine is difficult to reach its technical requirements.
The content of the invention
The technical problem to be solved is to be directed to above-mentioned state of the art, and provides a kind of Miniature digital air draught
Motor, by structure innovation the volume of motor is reduced, and improves air draught power, motor radiating efficiency and service life.
The present invention solve the technical scheme that adopted of above-mentioned technical problem for：A kind of Miniature digital induced-draught electric motor, including electricity
Casing body and in electric machine casing stator assembly and rotor assembly.The front end of electric machine casing is fixedly installed drive end bearing bracket.
Internal diameter of the external diameter of drive end bearing bracket less than electric machine casing.Two axles pair are provided between the periphery wall and electric machine casing inwall of drive end bearing bracket
The connector of title.The upper end of connector is formed with two water conservancy diversion inclined-planes, and the periphery wall of drive end bearing bracket constitutes wind-guiding to inner shafts to extension
Face, electric machine casing inwall, water conservancy diversion inclined-plane mutually enclose the flaring flow-guiding channel of composition with wind-guiding face.The lower end of connector is to motor casing
Body rear end extends, and stator module is fixedly mounted on the extension of connector.
To optimize above-mentioned technical proposal, present invention additionally comprises following improved technical scheme.
Above-mentioned stator module includes the stator installation seat being fixed on connector, the stator being fixed on stator installation seat
Iron core and stator coil, and the circuit board being fixedly connected with stator installation seat.
The connected axle bearing mount portion of one is formed with the middle part of above-mentioned drive end bearing bracket.Rotate in axle bearing mount portion and be provided with rotating shaft.
Rotating shaft is stretched out the end of drive end bearing bracket and is installed with fan blade.Rotor assembly is arranged in rotating shaft, and is coupled with stator module.
Above-mentioned circuit board is fixedly mounted between wind-guiding face and axle bearing mount portion, and the heat sink on circuit board is located at water conservancy diversion
The air outlet of passage.
Above-mentioned electric machine casing is installed with blade cover, and blade cover is located at the outside of drive end bearing bracket, drive end bearing bracket and blade cover
Between there is smooth air-inlet cavity, fan blade is located at air intake intracavity, and the edge of fan blade extends to drive end bearing bracket edge.
The back side of above-mentioned fan blade is formed with groove, and axle bearing mount portion is located in groove.
Above-mentioned axle bearing mount portion has the fixed part of fixed stator iron core.
Above-mentioned axle bearing mount portion is fixed with bearing holder (housing, cover), and bearing is arranged with the clutch shaft bearing and second bearing at two intervals,
Cushion is provided between clutch shaft bearing and second bearing.
Compared with prior art, Miniature digital induced-draught electric motor of the invention, by optimizing internal structure of motor, is reducing body
Air draught power and heat-sinking capability are improved on the basis of product.It is flaring that electric machine casing inwall, water conservancy diversion inclined-plane mutually enclose composition with wind-guiding face
Flow-guiding channel leads into the air-flow inside electric machine casing, allows air-flow in the outlet of flow-guiding channel directly against thermal component
Side wall blow, improve heat exchanger effectiveness, while avoid miscellaneous part in air-flow by stopping air-flow on path, make the air-flow can be with
Discharge in order, it is ensured that air draught efficiency.
Description of the drawings
Fig. 1 is the dimensional structure diagram of the embodiment of the present invention.
Fig. 2 is the assembling decomposing schematic representation of Fig. 1.
Fig. 3 is the profile of Fig. 1.
Fig. 4 is the bottom view of Fig. 1.
Fig. 5 is the bottom view of electric machine casing in Fig. 2.
Specific embodiment
Embodiments of the invention are described in further detail below in conjunction with accompanying drawing.
Fig. 1 to Fig. 5 show the structural representation of the present invention.
Reference therein is：Electric machine casing 1, flow-guiding channel 11, drive end bearing bracket 2, wind-guiding face 2a, axle bearing mount portion 2b,
Fixed part 2c, connector 3, water conservancy diversion inclined-plane 3a, stator installation seat 4, stator core 41, stator coil 42, circuit board 43, fan blade 5,
Blade cover 51, groove 52, fresh air inlet 53, bearing holder (housing, cover) 6, clutch shaft bearing 61, second bearing 62, cushion 63, rotating shaft 7, rotor 8.
A kind of Miniature digital induced-draught electric motor of the present invention, including electric machine casing 1 and the stator pack in electric machine casing 1
Part and rotor assembly.The front end of electric machine casing 1 is fixedly installed drive end bearing bracket 2.The external diameter of drive end bearing bracket 2 is interior less than electric machine casing 1
Footpath.Two axisymmetric connectors 3 are provided between the periphery wall and the inwall of electric machine casing 1 of drive end bearing bracket 2.The upper end of connector 3
It is formed with two water conservancy diversion inclined-plane 3a, the periphery wall of drive end bearing bracket 2 constitutes wind-guiding face 2a to inner shafts to extending, the inwall of electric machine casing 1, leads
Stream inclined-plane 3a encloses the flaring flow-guiding channel 11 of composition with wind-guiding face 2a phase.
The lower end of connector 3 to the rear end of electric machine casing 1 extends, and stator module is fixedly mounted on the extension of connector 3.
By arranging connector 3, fixed drive end bearing bracket 2 was both played a part of, the installation of stator module can have been facilitated again, made electric machine casing 1
Internal structure is more compact, effectively reduces motor volume.
The stator module of the present invention includes the stator installation seat 4 being fixed on connector 3, is fixed on stator installation seat 4
Stator core 41 and stator coil 42, and the circuit board 43 being fixedly connected with stator installation seat 4.
The connected axle bearing mount portion 2b of one is formed with the middle part of drive end bearing bracket 2, rotation in axle bearing mount portion 2b is provided with and turns
Axle 7, rotating shaft 7 is stretched out the end of drive end bearing bracket 2 and is installed with fan blade 5.Rotor assembly includes a rotor 8, and rotor 8 is arranged on and turns
On axle 7, and couple with stator module.
Above-mentioned circuit board 43 is fixedly mounted on the heat sink between wind-guiding face 2a and axle bearing mount portion 2b, on circuit board 43
Positioned at the air outlet of flow-guiding channel 11.Installation with circuit board 43 between wind-guiding face 2a and axle bearing mount portion 2b of drive end bearing bracket 2
Space, circuit board 43 is arranged between wind-guiding face 2a and axle bearing mount portion 2b, and the internal structure of electric machine casing 1 can be made tighter
Gather, and make the heat sink on circuit board 43 just be arranged on the air outlet of flow-guiding channel 11.The air that fan blade 5 is discharged is flowed through leads
After circulation road 11 is oriented to, can concentrate and blow in the side of heat sink and stator coil 42, even if the contracting of the inner space of electric machine casing 1
It is little, can also improve the heat-sinking capability of circuit board 43 and stator coil 42.
Above-mentioned electric machine casing 1 is installed with blade cover 51, and blade cover 51 is located at the outside of drive end bearing bracket 2, in blade cover
51 middle part is formed with fresh air inlet 53.There is smooth air-inlet cavity, fan blade 5 is located at air intake intracavity between drive end bearing bracket 2 and blade cover 51,
The edge of fan blade 5 extends to the edge of drive end bearing bracket 2.In prior art, multiple leading is typically provided between blade cover 51 and drive end bearing bracket 2
Air blade, multiple wind blades are centered around the periphery of fan blade 5 guiding wind-force, but also limit the size of fan blade 5, reduce air draught
Power.The present invention encloses the flaring flow-guiding channel 11 of composition to draw by the inwall of electric machine casing 1, water conservancy diversion inclined-plane 3a with wind-guiding face 2a phase
Wind-guiding power, without needing to arrange wind blade again, the edge that can make fan blade 5 extends to the edge of drive end bearing bracket 2, increases fan blade 5
Size, improves air draught power.
In prior art, air-flow is entered after motor internal, can be stopped by the various parts of motor internal, such as stator
Component, circuit board etc., reduce air draught power on certain procedures.Air-flow is entered by flaring flow-guiding channel 11 in the present invention
Inside electric machine casing 1, only carry out just to be discharged in order after heat exchange with the side wall of heat sink and the side wall of stator coil 42, and
Without other parts in air-flow by path, it is ensured that air draught efficiency.
The back side of above-mentioned fan blade 5 is formed with groove 52, and axle bearing mount portion 2b is located in groove 52, to reduce motor volume.
Above-mentioned axle bearing mount portion 2b has the fixed part 2c of fixed stator iron core 41, plays enhancing stator core 41 and stablizes
The effect of property.
It is fixed with above-mentioned axle bearing mount portion 2b in bearing holder (housing, cover) 6, bearing holder (housing, cover) 6 and is provided with the He of clutch shaft bearing 61 at two intervals
Second bearing 62, is provided with cushion 63 between clutch shaft bearing 61 and second bearing 62.Can reduce first using cushion 63
The installing space of bearing 61 and second bearing 62.
Highly preferred embodiment of the present invention is illustrated, and the various change made by those of ordinary skill in the art or remodeling are not
Can depart from the scope of the present invention.
Claims (8)
1. a kind of Miniature digital induced-draught electric motor, including electric machine casing (1) and the stator module in electric machine casing (1) and turn
Sub-component, is characterized in that：The front end of the electric machine casing (1) is fixedly installed drive end bearing bracket (2)；The external diameter of the drive end bearing bracket (2)
Less than the internal diameter of electric machine casing (1)；Two axles are provided between the periphery wall and electric machine casing (1) inwall of the drive end bearing bracket (2)
Symmetrical connector (3)；The upper end of the connector (3) is formed with two water conservancy diversion inclined-planes (3a), the periphery wall of the drive end bearing bracket (2)
Wind-guiding face (2a), described electric machine casing (1) inwall, water conservancy diversion inclined-plane (3a) and wind-guiding face (2a) phase are constituted to inner shafts to extension
Enclose the flaring flow-guiding channel (11) of composition；The lower end of the connector (3) to electric machine casing (1) rear end extends, and described determines
Sub-component is fixedly mounted on the extension of connector (3).
2. a kind of Miniature digital induced-draught electric motor according to claim 1, is characterized in that：Described stator module includes fixing
Stator installation seat (4) on connector (3), the stator core (41) being fixed on stator installation seat (4) and stator coil
(42) circuit board (43), and with stator installation seat (4) being fixedly connected.
3. a kind of Miniature digital induced-draught electric motor according to claim 2, is characterized in that：The middle part system of the drive end bearing bracket (2)
There is the connected axle bearing mount portion (2b) of one；Rotate in described axle bearing mount portion (2b) and be provided with rotating shaft (7)；The rotating shaft
(7) end for stretching out drive end bearing bracket (2) is installed with fan blade (5)；Described rotor assembly is arranged in described rotating shaft (7),
And couple with stator module.
4. a kind of Miniature digital induced-draught electric motor according to claim 3, is characterized in that：The fixed peace of described circuit board (43)
It is mounted between wind-guiding face (2a) and axle bearing mount portion (2b), the heat sink on the circuit board (43) is located at flow-guiding channel (11)
Air outlet.
5. a kind of Miniature digital induced-draught electric motor according to claim 4, is characterized in that：Described electric machine casing (1) is fixed
Blade cover (51) is installed, blade cover (51) positioned at the outside of drive end bearing bracket (2), described drive end bearing bracket (2) and blade cover (51) it
Between there is smooth air-inlet cavity, positioned at air intake intracavity, the edge of fan blade (5) extends to drive end bearing bracket (2) side to described fan blade (5)
Edge.
6. a kind of Miniature digital induced-draught electric motor according to claim 5, is characterized in that：The back side of the fan blade (5) is formed with
Groove (52), described axle bearing mount portion (2b) is located in groove (52).
7. a kind of Miniature digital induced-draught electric motor according to claim 6, is characterized in that：Described axle bearing mount portion (2b) tool
There is the fixed part (2c) of fixed stator iron core (41).
8. a kind of Miniature digital induced-draught electric motor according to claim 7, is characterized in that：Described axle bearing mount portion (2b) is solid
Surely there is bearing holder (housing, cover) (6), described bearing holder (housing, cover) (6) is provided with the clutch shaft bearing (61) and second bearing (62) at two intervals, first
Cushion (63) is provided between bearing (61) and second bearing (62).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510948224.XA CN105406634B (en) | 2015-12-17 | 2015-12-17 | Micro digital air suction motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510948224.XA CN105406634B (en) | 2015-12-17 | 2015-12-17 | Micro digital air suction motor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105406634A CN105406634A (en) | 2016-03-16 |
| CN105406634B true CN105406634B (en) | 2017-05-17 |
Family
ID=55471950
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510948224.XA Active CN105406634B (en) | 2015-12-17 | 2015-12-17 | Micro digital air suction motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105406634B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105846600B (en) * | 2016-05-04 | 2019-02-12 | 东莞市银燕电气科技有限公司 | A kind of motor and the aeromodelling aerocraft with the motor |
| CN107492977A (en) * | 2017-09-21 | 2017-12-19 | 明程电机技术（深圳）有限公司 | Centrifugal air duct radiating motor |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN205453368U (en) * | 2015-12-17 | 2016-08-10 | 宁波纽兴克电机有限公司 | Miniature digital air intake motor |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2797170B1 (en) * | 1999-08-05 | 2002-03-22 | Seb Sa | SUCTION KIT |
| CN101764465A (en) * | 2008-12-25 | 2010-06-30 | 乐金电子(天津)电器有限公司 | Impeller and end cover structure for dust collector motor |
| KR102099346B1 (en) * | 2014-01-02 | 2020-04-09 | 삼성전자주식회사 | Fan motor assembly and vacuum cleaner having the same |
| CN104967253B (en) * | 2015-07-16 | 2018-03-30 | 莱克电气股份有限公司 | At a high speed without Hall three-phase motor of dust collector |
-
2015
- 2015-12-17 CN CN201510948224.XA patent/CN105406634B/en active Active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN205453368U (en) * | 2015-12-17 | 2016-08-10 | 宁波纽兴克电机有限公司 | Miniature digital air intake motor |
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| Publication number | Publication date |
|---|---|
| CN105406634A (en) | 2016-03-16 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information |
Address after: 315100 Zhejiang city of Ningbo province Yinzhou District Jingu Road No. 219 Applicant after: Ningbo new G motor Limited by Share Ltd Address before: 315100 Zhejiang city of Ningbo province Yinzhou District Jingu Road No. 219 Applicant before: NINGBO NEWTHINK MOTOR CO., LTD. |
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| COR | Change of bibliographic data | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 315100 Zhejiang city of Ningbo province Yinzhou District Jingu Road No. 219 Patentee after: Ningbo Newark Electric Co., Ltd Address before: 315100 Zhejiang city of Ningbo province Yinzhou District Jingu Road No. 219 Patentee before: Ningbo new G motor Limited by Share Ltd |
|
| CP01 | Change in the name or title of a patent holder |