CN105846609B - Vacuum motor - Google Patents
Vacuum motor Download PDFInfo
- Publication number
- CN105846609B CN105846609B CN201610329370.9A CN201610329370A CN105846609B CN 105846609 B CN105846609 B CN 105846609B CN 201610329370 A CN201610329370 A CN 201610329370A CN 105846609 B CN105846609 B CN 105846609B
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- CN
- China
- Prior art keywords
- end cover
- control circuit
- circuit board
- stator
- gap
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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
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Motor Or Generator Cooling System (AREA)
Abstract
The present invention relates to a kind of vacuum motors, including stator, rotor, the shell being set on the outside of stator, control circuit board and fan assembly, there is the first gap between stator and rotor, there is the second gap between stator and shell, fan assembly includes movable vane wheel, determine impeller and fan housing, be provided on fan housing into, air outlet, the first end cover that shell includes and the second end cover with first end cover cooperation, first, two end caps are connected and fixed by several screws, first end cover is mutually fixed with fan housing, second end cover has an outer end face, control circuit board is located at the inside of outer end face, outer end face is in Openworks shape, exhaust outlet is provided on outer end face, first, two gaps be both connected with air outlet, it is connected again with exhaust outlet.In the present solution, enabling the air-flow blown out from the first and second gap to reach from control circuit board at the first time, so that the heat generated at control circuit board be taken away in time by being arranged control circuit board on the inside of second end cover.
Description
Technical field
The present invention relates to the brushless direct-current vacuum motors for dust catcher.
Background technique
It is existing, generally use brshless DC motor using the dust catcher that rechargeable battery works and work, it is brushless
For motor compared to brush motor, volume is smaller, and installation is more convenient.
In brushless motor, for the current direction of the winding in transformation of correct moment brushless motor, Hall biography is generallyd use
Sensor detects magnetic potential, although Hall sensor itself is inexpensively, to Hall sensor is mounted on motor
It is interior, the structure inside motor will be made to become complicated, so that the cost of motor rises.
Become known for indirectly determine rotor-position without Hall sensor motor, can be anti-by what is induced in phase winding
The dipole inversion of electromotive force can be used to determine rotor-position.As Publication No. CN104967253A Chinese patent in disclose
A kind of " at a high speed without Hall three-phase motor of dust collector " in the motor, passes through and simulation electronic is arranged in motor control panel controls electricity
The counter electromotive force induced in detection winding is carried out as the feedback signal of rotor magnetic pole position to substitute Hall sensor detection in road
Magnetic potential information.Due to adding simulation electronic control circuit in motor control panel, so that motor control panel calorific value increases, such as
It cannot effectively be radiated to motor control panel, it will influence the normal use of motor.
Summary of the invention
In order to solve the above-mentioned technical problem, the object of the present invention is to provide a kind of vacuum motors of perfect heat-dissipating.
In order to realize that the purpose of foregoing invention, the present invention adopt the following technical scheme that：A kind of vacuum motor, including：Inside set
The stator of center hole, across center hole rotor, be set on the outside of the stator shell, in the shell
The control circuit board and fan assembly in portion have the first gap, the stator between the stator and the rotor
There is the second gap between the shell, the fan assembly includes movable vane wheel, determines impeller and for accommodating movable vane
Wheel and the fan housing determining impeller and mutually fix with the shell are provided with air inlet and air outlet on the fan housing, described
Shell include first end cover for fixing described stator one end and with first end cover with merging the fixation stator other end
Second end cover, the first end cover and second end cover are connected and fixed by several screws, the first end cover and described
Fan housing is mutually fixed, and the second end cover has an outer end face, and the control circuit board includes one without hall sensor circuit, institute
The control circuit board stated is located at the inside of the outer end face, and the outer end face is in Openworks shape, is provided on the outer end face
Exhaust outlet, first gap, the second gap are not only connected with the air outlet but also are connected with the exhaust outlet
It is logical.
In above-mentioned technical proposal, it is preferred that the stator includes iron core, the coiling group being wound on iron core, is located at iron core
The first end plate of one end and with first end plate match merges be located at iron core the other end the second end plate, the first end plate
Close to the first end cover, second end plate is located at described close to the second end cover, the control circuit board
The second end plate and the second end cover between.
In above-mentioned technical proposal, the iron core includes an excircle wall surface and an inner periphery wall surface, the inner periphery
Wall surface several protrusions to made of radially extending, each protrusion are being formed with pole positioned at center one end
Boots, are provided with several the first recess portions being recessed inwardly on the excircle wall surface, each first recess portion and corresponding
Protrusion it is corresponding, the screw passes through first recess portion.
In above-mentioned technical proposal, the first end plate is integrally formed.
In above-mentioned technical proposal, several connecting terminals, the terminals attached bag are provided on second end plate
A metal insert is included, a pair of of wire inserting slot is provided on the metal insert, the lead in coiling group is inserted in the plug wire
In slot.
In above-mentioned technical proposal, the control circuit board has an outer circumferential edges, sets in the outer circumferential edges
Several the second recess portions being recessed inwardly are equipped with, the screw passes through second recess portion.
The present invention obtains following beneficial effect compared with prior art：By being arranged control circuit board in second end cover
Side, so that the wind energy blown out from the first gap and the second gap reaches from control circuit board at the first time, thus by control circuit
The heat generated at plate is taken away in time, reaches heat dissipation purpose.
Detailed description of the invention
Attached drawing 1 is the stereoscopic schematic diagram of motor of the invention；
Attached drawing 2 is the front sectional view of motor of the invention；
Attached drawing 3 is the fractionation schematic diagram of motor of the invention；
Attached drawing 4 is the schematic diagram of iron core of the invention；
Attached drawing 5 is the schematic diagram of the second end plate and control circuit board of the invention；
Attached drawing 6 is the schematic diagram of metal terminal of the invention；
Attached drawing 7 is the air flow direction schematic diagram inside motor of the invention（Second end cover is not shown）.
Specific embodiment
By the technology contents of invention are described in detail, construction feature, are reached purpose and efficacy, simultaneously below in conjunction with embodiment
Cooperation attached drawing is described in detail.
Vacuum motor 100 as shown in Figure 1, 2, 3, this is a brshless DC motor.It sets center hole 11 in including
Stator 1, across the rotor 2 of center hole 11, the shell 3 for being set in the outside of stator 1, the control circuit board 4 inside shell 3
And fan assembly 5.Stator 1 includes iron core 12, the coiling group being wound on iron core 12（It is not shown in the figure）, be located at 12 one end of iron core
The first end plate 13 in portion and with first end plate 13 match merges be located at 12 the other end of iron core the second end plate 14, first end plate 13
It is integrally formed with the second end plate 14.Rotor 2 is made of magnet 21, axis 22 and bearing 23.Shell 3 includes for fixed fixed
The first end cover 31 of sub 1 one end and match the second end cover 32 for merging 1 other end of fixed stator, first end cover 31 with first end cover 31
On be provided with 3 screw holes 311, second end cover 32 has an outside circumference 321 and an outer end face 322, and outer end face 322 is in engraving
Empty shape, the hollow part of outer end face 322 form exhaust outlet 33, are provided with a Y type muscle 323 on outer end face 322, are arranged on Y type muscle 323
There are 3 screw holes 324.First end cover 31 and second end cover 32 are by passing through 6 phase of screw in screw hole 311 and screw hole 324
It is fixedly connected.Fan assembly 5 includes movable vane wheel 51, determines impeller 52 and for accommodating movable vane wheel 51 and determining impeller 52 and with first
The fixed fan housing 53 of 31 phase of end cap, the first end of fan housing 53 are provided with air inlet 54, the other end of fan housing 53 and first end
31 phase of lid is fixed, and air outlet 55 is provided in first end cover 31.Control circuit board 4 is with no hall sensor circuit（In figure not
It shows）, control circuit board 4 is located at the inside of outer end face 322 in second end cover 32, i.e. control circuit board 4 is located at the second end plate 14
Between second end cover 32.
Iron core 12 as shown in Figure 4, it includes an excircle wall surface 121 and an inner periphery wall surface 122, inner periphery wall surface
122 several protrusions 123 to made of radially extending, each protrusion 123 are being formed with pole shoe positioned at center one end
124, the pole shoe angle α of each pole shoe 124 are within the scope of 90-100 °, and 124 arc length of each pole shoe is in same center circle 11
On, to reduce the commutation loss of electronic component.Several the first recess portions being recessed inwardly are provided on excircle wall surface 121
125, each first recess portion 125 is corresponding with corresponding protrusion 123, and screw 6 is also cross the first recess portion 125.
As shown in figure 5, control circuit board 4 has an outer circumferential edges 41,3 are provided in outer circumferential edges 41 and is concaved
The second sunken recess portion 42, screw 6 also pass through the second recess portion 42 simultaneously.The middle part of control circuit board 4 is provided with center hole 43.
As shown in fig. 6, being provided with several connecting terminals 141 on the second end plate 14, connecting terminal 141 is inserted including a metal
Piece 142.As shown in figure 5, metal, which is inserted, is provided with a pair of of wire inserting slot 143 on 142, the lead 144 in coiling group is inserted in wire inserting slot
In 143, in this example, sheet metal 142 is no-welding direct insertion sheet metal, and wire inserting slot 143 is matched with lead 144 for interference
It closing, i.e. the groove width L of wire inserting slot 143 is slightly less than the outer diameter D of lead 144, in this way when lead 144 is inserted into wire inserting slot 143,
The cell wall of wire inserting slot 143 can be by lead 144（Usually copper enameled wire）External layers of copper is struck off, therefore the direct insertion metal
The setting of piece can save the technique being welded to lead 144 on sheet metal, convenient for batch production, improve production efficiency.
As shown in fig. 7, having the first gap 71 between stator 1 and rotor 2, there is the second gap between stator 1 and shell 2
72, the first gap 71, the second gap 72 are not only connected with air outlet 55 but also are connected with exhaust outlet 33.In this way from blower fan group
The air-flow that the air outlet 55 of part 5 flows out can pass through at the first gap 71 and 72 after-blow to control circuit board 4 of the second gap, thus
Realize heat dissipation to control circuit board 4, the thermal current after heat dissipation can be flowed out from the center hole 43 of control circuit board 4 and from
Exhaust outlet 33 in second end cover 32 is discharged.Control circuit board 4 by being arranged in the inside of second end cover 32 by this example, on the one hand
Convenient for the lead 143 of coiling group and the connection of control circuit board 4, on the other hand can also one be played to control circuit board 4
Protective effect；The third aspect is right so as to avoid the Y type muscle 323 in second end cover 32 since the inside of second end cover 32 is arranged
The influence of heat dissipation enables the gas flowed out from the first gap and the second gap to reach from control circuit board 4 at the first time pair
It radiates.
The above embodiments merely illustrate the technical concept and features of the present invention, and its object is to allow person skilled in the art
Scholar cans understand the content of the present invention and implement it accordingly, and it is not intended to limit the scope of the present invention.It is all according to the present invention
Equivalent change or modification made by spirit, should be covered by the protection scope of the present invention.
Claims (6)
1. a kind of vacuum motor, it is characterised in that：It includes：Inside set stator, the rotor across center hole, set of center hole
It is located at the shell on the outside of the stator, control circuit board and fan assembly positioned at the enclosure interior, described determines
It is sub that there is the first gap between the rotor, there is the second gap between the stator and the shell, it is described
Fan assembly includes movable vane wheel, determines impeller and the wind for accommodating movable vane wheel and determining impeller and mutually fix with the shell
It covers, is provided with air inlet and air outlet on the fan housing, the shell includes first for fixing described stator one end
End cap and match the second end cover for merging the fixed stator other end with first end cover, the first end cover and second end cover are led to
It crosses several screws to be connected and fixed, the first end cover is mutually fixed with the fan housing, and the second end cover has an outer end
Face, the control circuit board include one without hall sensor circuit, and the control circuit board is located at the inside of the outer end face,
The outer end face is in Openworks shape, is provided with exhaust outlet on the outer end face, first gap, the second gap both with
The air outlet is connected and is connected with the exhaust outlet, enable the air-flow flowed into from the air inlet successively
It is electric through the control again that air-flow at the control circuit board is blown to behind the air outlet, the first gap, the second gap
It is flowed out at the center hole of road plate, then from the exhaust outlet discharge in the second end cover.
2. vacuum motor according to claim 1, it is characterised in that：The stator includes iron core, is wound on iron core
Coiling group matches the second end merged positioned at iron core the other end positioned at the first end plate of iron core one end and with first end plate
Plate, the first end plate is close to the first end cover, and second end plate is close to the second end cover, the control
Circuit board processed is between second end plate and the second end cover.
3. vacuum motor according to claim 2, it is characterised in that：The iron core includes in an excircle wall surface and one
Circumferential wall, the inner peripheral wall exist towards several protrusions made of radially extending, each protrusion
It is formed with pole shoe positioned at center one end, several the first recess portions being recessed inwardly are provided on the excircle wall surface, it is each
First recess portion and corresponding protrusion are corresponding, and the screw passes through first recess portion.
4. vacuum motor according to claim 2, it is characterised in that：The first end plate is integrally formed.
5. vacuum motor according to claim 2, it is characterised in that：Several wiring are provided on second end plate
Terminal, the connecting terminal include a metal insert, are provided with a pair of of wire inserting slot on the metal insert, in coiling group
Lead is inserted in the wire inserting slot.
6. vacuum motor according to claim 1, it is characterised in that：The control circuit board has a circumferential periphery
Edge, several the second recess portions being recessed inwardly are provided in the outer circumferential edges, and the screw passes through described second
Recess portion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610329370.9A CN105846609B (en) | 2016-05-18 | 2016-05-18 | Vacuum motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610329370.9A CN105846609B (en) | 2016-05-18 | 2016-05-18 | Vacuum motor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105846609A CN105846609A (en) | 2016-08-10 |
| CN105846609B true CN105846609B (en) | 2018-11-30 |
Family
ID=56592645
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610329370.9A Active CN105846609B (en) | 2016-05-18 | 2016-05-18 | Vacuum motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105846609B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111893934A (en) * | 2019-05-05 | 2020-11-06 | 南京德朔实业有限公司 | Hair drier |
| KR102311692B1 (en) * | 2020-03-16 | 2021-10-12 | 엘지전자 주식회사 | Motor |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006161620A (en) * | 2004-12-03 | 2006-06-22 | Toshiba Tec Corp | Motor-driven blower and assembling method thereof |
| JP5050538B2 (en) * | 2007-01-29 | 2012-10-17 | 株式会社明電舎 | Motor cooling structure |
| CN201355796Y (en) * | 2009-01-23 | 2009-12-02 | 东明机电（深圳）有限公司 | Brushless DC motor used for suction cleaners |
| CN201478944U (en) * | 2009-09-09 | 2010-05-19 | 董国庆 | Automobile generator with double air passages and double fans |
| TWI497878B (en) * | 2013-04-09 | 2015-08-21 | Mobiletron Electronics Co Ltd | Brushless motor |
| 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 |
| CN105048716B (en) * | 2015-08-20 | 2018-04-17 | 广东威灵电机制造有限公司 | integrated motor with impeller |
| CN205595955U (en) * | 2016-05-18 | 2016-09-21 | 苏州爱普电器有限公司 | Vacuum motor |
-
2016
- 2016-05-18 CN CN201610329370.9A patent/CN105846609B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN105846609A (en) | 2016-08-10 |
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