CN109416055A - Electric blower and electric dust collector - Google Patents
Electric blower and electric dust collector Download PDFInfo
- Publication number
- CN109416055A CN109416055A CN201780040109.XA CN201780040109A CN109416055A CN 109416055 A CN109416055 A CN 109416055A CN 201780040109 A CN201780040109 A CN 201780040109A CN 109416055 A CN109416055 A CN 109416055A
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- CN
- China
- Prior art keywords
- frame
- mentioned
- stator
- electric blower
- centrifugal fan
- 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.)
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Classifications
-
- 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
- H02K5/207—Casings or enclosures characterised by the shape, form or construction thereof with channels or ducts for flow of cooling medium with openings in the casing specially adapted for ambient air
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/40—Casings; Connections of working fluid
- F04D29/42—Casings; Connections of working fluid for radial or helico-centrifugal pumps
- F04D29/44—Fluid-guiding means, e.g. diffusers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/58—Cooling; Heating; Diminishing heat transfer
-
- 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
- H02K9/06—Arrangements for cooling or ventilating by ambient air flowing through the machine having means for generating a flow of cooling medium with fans or impellers driven by the machine shaft
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
- Motor Or Generator Cooling System (AREA)
- Motor Or Generator Frames (AREA)
Abstract
The electric blower of embodiment has centrifugal fan, motor and rectification body.Diffuser has outer frame, main part and wind path portion.Outer frame scaffold, and form exterior contour.Main part is configured at the inside of outer frame.Wind path portion is formed between outer frame and main part, and the air blown out from centrifugal fan is rectified to frame INO Intake Open oral area.Wind path portion is that internal diameter (D1) is set to be greater than at least part of outer diameter (D3) of stator core, and outer diameter (D2) is set to the internal diameter (D4) of frame below.
Description
The reference of association request: the Japanese patent application 2016-226065 that the application was submitted based on November 21 in 2016
Number priority, and entire contents by reference be contained in the application.
Technical field
Embodiments of the present invention are related to the electric blower of the frame with storage rotor and stator and have this
The electric dust collector of electric blower.
Background technique
In the past, such as the electric blower used in electric dust collector etc. has motor, is revolved by the motor
The fan turned and rectification body (cowling panel) the i.e. diffuser being folded between the motor and fan.Also, from by electronic
Machine and rotate centrifugal fan blowout air by diffuser rectify and be sent into motor, and will to the motor carry out it is cold
But the frame outside of air towards motor after is discharged.
In order to ensure the air supply efficiency of electric blower, therefore, to assure that by the air blown out from centrifugal fan from diffuser to
Wind path until being sent into and be discharged from motor in motor.It may be thus possible, for example, to consider in the frame by making motor
Portion's shape becomes quadrilateral shape, thus expands the wind path formed between the stator core of quadrilateral shape.But when making frame
Interior shape become quadrilateral shape when, frame itself be possible to enlargement.
Existing technical literature
Patent document
Patent document 1: No. 5369557 bulletins of Japanese Patent Publication No.
Summary of the invention
Subject to be solved by the invention
Offer is able to suppress enlargement and can ensure outside wind path portion and stator core and between lower portion
The electric blower of wind path and the electric dust collector for having the electric blower.
Means for solving the problems
The electric blower of embodiment has centrifugal fan, motor and rectification body.Motor revolves centrifugal fan
Turn.The motor has rotor, stator and frame.Rotor is connect with centrifugal fan.Stator rotates rotor.The stator has
Stator core and the stator core formed magnetic pole coil.Frame has for the air inflow after being rectified by rectification body
INO Intake Open oral area, and store rotor and stator.Rectification body is folded between centrifugal fan and motor.The rectification body will from from
The air of heart fan blowout is rectified towards motor side.In addition, the rectification body has outer frame, main part and wind path portion.
Outer frame scaffold, and form exterior contour.Main part is configured at the inside of outer frame.Wind path portion is formed in outer frame and master
Between body portion, the air blown out from centrifugal fan is rectified towards INO Intake Open oral area.The internal diameter in wind path portion is set to be greater than
At least part of outer diameter of stator core, outer diameter are set to the internal diameter of frame or less.
Detailed description of the invention
Fig. 1 is the sectional view for indicating the electric blower of an embodiment.
Fig. 2 is the plan view that a part of electric blower ibid is indicated from centrifugal fan side.
Fig. 3 is the perspective view that a part of electric blower ibid is indicated from centrifugal fan side.
Fig. 4 is the plan view that a part of electric blower ibid is indicated from motor side.
Fig. 5 is the perspective view that a part of electric blower ibid is indicated from motor side.
Fig. 6 is the plan view for indicating the stator of electric blower ibid.
Fig. 7 is the plan view for indicating a part of frame of electric blower ibid.
Fig. 8 is the exploded perspective view of electric blower ibid.
Fig. 9 is a part excision for the electric blower that will be same as above and the perspective view of expression.
Figure 10 is the perspective view for indicating to have the electric dust collector of electric blower ibid.
Specific embodiment
Hereinafter, being illustrated referring to composition of the attached drawing to an embodiment.
Fig. 1 to Fig. 9 indicates that the electric blower of embodiment, Figure 10 indicate electric dust collector.
In Fig. 8 and Fig. 9,11 indicate electric blower.The electric blower 11 has motor 13.In addition, the electricity
Dynamic air blower 11 has centrifugal fan 14.Also, the electric blower 11 has the diffuser 15 as rectification body (cowling panel).
In addition, the electric blower 11 has fan guard 16.Also, the driving of the electric blower 11 (motor 13) is not shown
Control circuit control.
(motor)
Motor 13 can be commutator motor and be also possible to brushless motor, but in the present embodiment, and e.g. single-phase 4
The brushless motor of pole.Also, the motor 13 has rotor 21.In addition, the motor 13 has stator 22.In turn, this is electronic
Machine 13 has sensor base plate 23.In addition, the motor 13 has frame 24.In addition, hereinafter, by the axial direction of electric blower 11
13 side of motor as rear (side arrow RR shown in Fig. 8, Fig. 9 etc.), 14 side of centrifugal fan be used as front (Fig. 8, Fig. 9 etc.
Shown in the side arrow FR) be illustrated.As long as axially and radially referring to electric blower 11 in addition, not illustrating
Axially and radially.
Rotor 21 forms rotary pole.The rotor 21 is in the present embodiment permanent-magnet rotor, but in motor
13 is in the case where commutator motors or coiled pipe type rotor.The rotor 21 has shaft 26.In addition, the rotor 21 has
Magnet part 27.In turn, which can also have at least one axle sleeve 28.Also, the rotor 21 is via 30 phase of a pair of bearings
Frame 24 is maintained as rotating freely.
Shaft 26 is the rotary shaft of the output shaft as motor 13.Centrifugal fan 14 is connected in the shaft 26.Tool
For body, in the shaft 26, centrifugal fan 14 is being connected with from the front end side outstanding of frame 24.
Magnet part 27 is formed as cylindric, is fixed with shaft 26 in central portion.In the magnet part 27, adjacently it is formed with
There are mutually different polar multiple magnetic poles (rotary pole) on direction of rotation (circumferential direction).Thus, in the magnet part 27, revolving
Turn the pole N and the pole S on direction successively alternately to configure and become pair.
Has a pair of of axle sleeve 28 in the present embodiment, the front end and rear end of this pair of of axle sleeve 28 and magnet part 27
It abuts and is individually fixed in shaft 26.In addition, the axle sleeve 28 is not required composition.
Bearing 30 is installed on the one end and another side of shaft 26, and is individually fixed in frame 24, by 21 phase of rotor
Frame 24 is remained and is rotated freely.
Fig. 6, Fig. 8 and stator shown in Fig. 9 22 constitute the fixed magnetic pole for rotating rotor 21.The stator 22 has stator
Iron core 33.In addition, the stator 22 has the stator insulation component 34 as insulator.In turn, which has coil 35.This
Outside, which has terminal 36.
Stator core 33 is, the laminal magnetic substance such as laminated electromagnetic steel plate and be formed to have substantially certain thickness
Plate.The stator core 33 has the back yoke 41 of circular (cylindrical shape).In addition, the stator core 33 has 3 or more, at this
It is 4 teeth 42 in embodiment.In turn, which has frame mounting portion 43.In addition, in the present embodiment,
The stator core 33 is divided into respectively by cutting part 44 in substantially semicircular arc-shaped two parts up and down.That is, for example passing through punching
Two be punched out such as molded (one and another) magnetic yoke body (magnetic core component) 46,46 is integrally connected by cutting part 44
It ties and constitutes the stator core 33.
Back yoke 41 will between tooth 42 be interconnected, and formed by by be wound in become pair tooth 42,42 coil 35,35 produce
The magnetic circuit that magnetic (passing through magnetic flux) couples between raw fixed magnetic pole.In the present embodiment, which is set with the 1st magnetic yoke portion
41a, 41a and the 2nd magnetic yoke portion 41b, 41b.Circumferential direction of these the 1st magnetic yoke portion 41a and the 2nd magnetic yoke portion 41b in stator core 33
On alternately configure.
1st magnetic yoke portion 41a is respectively formed as arc-shaped.1st magnetic yoke portion 41a is set to substantially certain broad-ruler
It is very little, and be formed as at the position near tooth 42 (position opposed with frame mounting portion 43) inner circumferential side gradually luffing (Fig. 4).
On the 1st magnetic yoke portion 41a, terminal 36 is configured on stator insulation component 34.
2nd magnetic yoke portion 41b is respectively formed as arc-shaped.In the present embodiment, the 2nd magnetic yoke portion 41b is in addition to cutting part
Substantially certain width dimensions are all set to other than 44.In the present embodiment, cutting part 44 is for example set in the 2nd magnetic yoke
Portion 41b.
Also, the circumferential lengths of these the 1st magnetic yoke portion 41a and the 2nd magnetic yoke portion 41b are (along the circumferential of stator core 33
The size in direction) and width dimensions (along the size in the radial direction of stator core 33) it is different.1st magnetic yoke portion
It is short that the circumferential lengths (between cog length) of 41a are set to the circumferential lengths (between cog length) than the 2nd magnetic yoke portion 41b, the 1st magnetic yoke portion
The width dimensions of 41a are set to bigger than the width dimensions of the 2nd magnetic yoke portion 41b.
Herein, in the present embodiment, the 1st magnetic yoke portion 41a is formed as, relative to the 2nd magnetic yoke portion 41b in stator core 33
The central axis side of (back yoke 41) is inside (inner circumferential side) and is that outside (peripheral side) respectively becomes width with central axis side opposite side
Width.That is, the outer diameter of the 1st magnetic yoke portion 41a is greater than the outer diameter of the 2nd magnetic yoke portion 41b, the internal diameter of the 1st magnetic yoke portion 41a
Less than the internal diameter of the 2nd magnetic yoke portion 41b.Thus, for the 1st magnetic yoke portion 41a compared with the 2nd magnetic yoke portion 41b, magnetic circuit is set big
(wide cut).
Tooth 42 forms fixed magnetic pole by coil 35.These teeth 42 are that the tooth 42,42 positioned at left and right magnetically becomes
It is right.In addition, these teeth 42 are provided projectingly from the inner peripheral portion of back yoke 41 towards 21 side of center position, that is, rotor respectively.That is, the tooth 42
Along being formed radially as strip for back yoke 41 (stator core 33), base end part and back yoke 41 link, and front end is prominent for freely
Hold shape.Specifically, the tooth 42,42 of left and right adjoining is configured to, become mutually in the circumferential direction of stator core 33 (stator 22)
90 ° of angles below.In addition, constituting in the front end of each tooth 42 has the magnetic action face opposed with the outer peripheral surface of rotor 21.The magnetic
Acting surface is that the fixed magnetic pole for being formed in each tooth 42 by coil 35 is made to act on rotor 21, the outer peripheral surface relative to rotor 21
It separates gap slightly and separates.
Stator core 33 (stator 22) is fixed frame mounting portion 43 relative to frame 24.43 court of frame mounting portion
The outside (peripheral side) of back yoke 41 is provided projectingly in quadrilateral shape, and is configured near the respective base end part of each tooth 42.Thus,
In present embodiment, which is separated from each other in the circumferential direction of back yoke 41 and is set with quantity corresponding with tooth 42 i.e.
4.Also, each frame mounting portion 43 is provided with the mounting hole 43a of axially (front-rear direction) perforation.In the mounting hole
Screw 49 of the insertion as installing component in 43a, by screwing togather the screw 49 and 24 side of frame by 33 (stator of stator core
22) it is fixed on frame 24.
Stator insulation component 34 is hold-in winding 35 and terminal 36 in the state of insulating relative to stator core 33.
The stator insulation component 34 is formed by the synthetic resin etc. of insulating properties.The stator insulation component 34 has the terminal for keeping terminal 36
Platform, that is, terminal retention portion 52.Terminal retention portion 52 overlaps in the back yoke 41 of stator core 33.In the present embodiment, terminal
There are two maintaining part 52 respectively configures on each 1st magnetic yoke portion 41a of stator core 33.In addition, the terminal retention portion 52 relative to
Stator core 33 is configured in a manner of being projected toward the outside at least partially.In the present embodiment, the one of the terminal retention portion 52
Part is projected toward the outside from the outer peripheral edge of the 1st magnetic yoke portion 41a.
Coil 35 makes each tooth 42 form fixed magnetic pole.In the present embodiment, these coils 35 are for example configured to, fixed
It is alternately generated in the circumferential direction of sub- iron core 33 (stator 22) heteropolar.
Terminal 36 is for control circuit and each coil 35 to be electrically connected.The terminal 36 is being located at stator core 33 or so
Tooth 42,42 between position at respectively respectively configured with a pair.Also, be located at left and right terminal 36,36 become pair.
Sensor base plate 23 is to be detected by the polarity of the magnetic pole to rotor 21 (magnet part 27) to detect rotor 21
Rotation position (rotation angle), such as have Hall IC etc..The sensor base plate 23 is for example formed as C-shaped, along rotor
The periphery of 21 magnet part 27 configures.In addition, the sensor base plate 23 is for example overlapped in the rear side of stator 22, and for example pass through spiral shell
The substrate holding parts 59 such as nail are fixed on stator insulation component 34.
Frame 24 is such as the light weight as aluminium or magnesium and conductive metal parts is formed.The frame 24 for example has
One frame body 61 and another frame body 62.Also, the frame 24 is configured to, this and another frame body 61,
62 is fixed by the mutually front and back of screw 49, and rotor 21, stator 22 and sensor base are thus stored in a manner of sandwiching from front and back
Plate 23.
One frame body 61 is located at front side relative to rotor 21, stator 22 and sensor base plate 23.As shown in figure 8, one
A frame body 61 has circular exterior contour portion 64.In addition, a frame body 61 has a bearing portion 65.In turn, one
A frame body 61 has multiple foots 66 as a linking part.In addition, a frame body 61 has multiple limiting units
67.In turn, a frame body 61 has multiple screw parts 68 as attached portion.In addition, a frame body 61 has conduct
The frame INO Intake Open oral area 69 of INO Intake Open oral area.
Exterior contour portion 64 is used to set the maximum outside diameter of frame 24 (frame body 61).As shown in Fig. 3 and Fig. 5,
The exterior contour portion 64 has the outer diameter roughly equal with diffuser 15.
As shown in FIG. 8 and 9, a bearing portion 65 is by accepting the bearing 30 of a side (front side) for rotor 21
Hold a bearing cage to rotate freely.In addition, a bearing portion 65 be provided with for for by motor 13 and diffusion
The screw hole 65a for the circular hole that the fixed bodies such as the screw that device 15 is fixed in the longitudinal direction 71 screw togather.
As shown in Fig. 4 and Fig. 7, a foot 66 links a bearing portion 65 with exterior contour portion 64.These
Foot 66 is radially provided projectingly from a bearing portion 65 respectively.The number of the tooth 42 of one foot 66 and stator core 33
Amount is correspondingly provided with multiple.That is, in the present embodiment, being provided with 4 foots 66.In addition, these foot
66 are substantially evenly distributed in the circumferential direction of frame 24 (frame body 61).That is, around electric blower 11 (rotor 21)
Configured with multiple foots 66.In turn, the front end side (64 side of exterior contour portion) of these foot 66 towards rear side, i.e.
Another 62 lateral bend of frame body.
Limiting unit 67 and making 33 rotation stop of stator core by frame 24 (frame body 61) relative to stator 22 in week
Positioning upwards.These limiting units 67 are set to the coupling position in exterior contour portion 64 and a foot 66.Also, by these
Limiting unit 67 is fitted into frame mounting portion 43 respectively, and thus stator core 33 (stator 22) is in the circumferential by rotation stop.
As shown in Fig. 7 and Fig. 9, screw part 68 is located at limiting unit 67 and is respectively arranged at a foot 66.Also, the spiral shell
Conjunction portion 68 is configured to the boss that the screw 49 of the mounting hole 43a of each frame mounting portion 43 for being inserted through stator core 33 screws togather
Shape.
Marked off between 64, one, exterior contour portion bearing portion 65 and an adjacent foot 66,66 frame into
Gas opening portion 69.The frame INO Intake Open oral area 69 is opposed to be open with diffuser 15.
As shown in FIG. 8 and 9, another frame body 62 is relative to rotor 21, stator 22 and sensor base plate 23
In rear side.Another frame body 62 has another bearing portion 73.In addition, another frame body 62 has as another connection
Another foot 74 in portion.
Another bearing portion 73 is to be rotatably supported rotor 21 and accepting bearing 30 of another party's (rear side)
Another bearing cage.
Another foot 74 is the contact portion contacted with stator core 33, and is by another frame body 62 and a frame
The part that body 61 links.These another foots 74 are radially provided projectingly from another bearing portion 73 respectively.This is another
A foot 74 is correspondingly provided with multiple with the quantity of the tooth 42 of stator core 33, in other words with the quantity of frame mounting portion 43.
That is, in the present embodiment, being provided with 4 another foots 74.In addition, these another foots 74 are (another in frame 24
A frame body 62) circumferential direction on be substantially evenly distributed.That is, this is another configured with multiple around electric blower 11 (rotor 21)
One foot 74.In turn, the front end side of these another foots 74 towards front side, i.e. 61 lateral bend of frame body.In addition,
The front end of these another foots 74 is respectively arranged with the insertion hole 74a inserted for screw 49.Also, it is inserted through and stator iron
The screw 49 of the insertion hole 74a for these another foots 74 that core 33 is overlapped also is inserted through the frame mounting portion 43 of stator core 33
Mounting hole 43a and screwed togather with the screw part of a frame body 61 68, thus one and another frame body 61,62 it is mutual
It is fixed.Thus, in the state of being fixed another frame body 62 and a frame body 61, in frame body 61
Exterior contour portion 64, another frame body 62 another bearing portion 73 and another adjacent foot 74,74 between,
The frame exhaust port portion 75 as exhaust port portion is respectively divided out.These frame exhaust port portions 75 are by inflow motor 13
Interior air is discharged towards the outside.In addition, terminal 36 is located in a manner of exposing in these frame exhaust port portions 75 mutually respectively
Opposed pairs frame exhaust port portion 75.
(centrifugal fan)
Centrifugal fan 14 connect with shaft 26 and is rotated by motor 13, thus by air from center side to periphery
Release (blowout) in side.The centrifugal fan 14 has the shaft insertion hole 77 inserted for shaft 26 in central portion.In addition, the centrifugation wind
Fan 14 has multiple fan wings 78.Also, pass through the front end of the shaft 26 in the motor 13 for being inserted through shaft insertion hole 77
The nut 79 as fixation member is screwed togather, thus centrifugal fan 14 is fixed integrally to shaft 26.
(diffuser)
As shown in Fig. 1 to Fig. 5, Fig. 8, Fig. 9 etc., diffuser 15 is rectified and is made to the air released by centrifugal fan 14
It is flowed into the inside of motor 13.The diffuser 15 has outer frame 80.In addition, the diffuser 15 has main part 81.Into
And the diffuser 15 has the wind path portion 82 as vent openings portion.In addition, the diffuser 15 has mounting opening 83.Into
And the diffuser 15 has the through-hole 84 as fixed hole portion.In addition, the diffuser 15 has multiple rectifying wings 85.In turn, should
Diffuser 15 has frame positioning region 86.In addition, the installed in front in the diffuser 15 has fan guard 16.Also, the diffuser
15 for example by molding synthetic resin, strengthens the molding such as PET by glass fibre (GF) in the present embodiment.
80 scaffold 24 of outer frame.The exterior contour of the outer frame 80 formation diffuser 15.Such as shape of outer frame 80
As the annular shape with 24 roughly the same diameter of frame.That is, the outer frame 80 be set to it is roughly equal with exterior contour portion 64
Outer diameter.In addition, the outer frame 80 is in the state of supporting frame 24, it is (preceding in axial direction relative to exterior contour portion 64
Side) on be overlapped.In turn, the outer frame 80 size of axial (front-rear direction) compared with main part 81 is set bigger.Therefore,
The outer frame 80 by relative to main part 81 it is outstanding forward and backward in a manner of extend.
Main part 81 is the part Chong Die with frame 24.The main part 81 is configured at the inside of outer frame 80.The main part
81 outer diameter is set to bigger and smaller than the internal diameter of outer frame 80 than centrifugal fan 14.Therefore, the main part 81
Outer edge inwards (central side) is left relative to the inner edge portion of outer frame 80, and is linked by rectifying wings 85.In addition, in the master
Body portion 81, can also be in the recess portion 81a of the round of the rear side of central portion setting configuration centrifugal fan 14.In turn, the main part
81 position by front side for example in outer frame 80.
Wind path portion 82 will be rectified from the air that centrifugal fan 14 is blown out to frame INO Intake Open oral area 69.The wind path portion 82
Be formed as, penetrate through diffuser 15 along front-rear direction between the outer frame 80 and main part 81 of diffuser 15.In the wind path portion
Rectifying wings 85 are configured on 82.In other words, it is drawn between the outer frame 80 of diffuser 15, main part 81 and rectifying wings 85,85
Separate wind path portion 82.
Herein, as shown in Figure 1, Figure 2 and shown in Fig. 4, which is that internal diameter D1 and outer diameter D 2 are set to substantially one
Fixed, internal diameter D1 is greater than at least part of outer diameter D 3 (D1 > D3) of stator core 33, outer diameter D 2 be the internal diameter D4 of frame 24 with
Under (D2≤D4).The internal diameter D1 in wind path portion 82 is provided by the outer diameter of main part 81.In addition, the outer diameter D 2 in wind path portion 82 is by outer
The internal diameter of frame portion 80 provides.In turn, the outer diameter D 3 of stator core 33 is by the outer of the position other than frame mounting portion 43
The outer diameter definition of diameter size, i.e. back yoke 41.In the present embodiment, to be set with outer diameter in back yoke 41 relatively large
1st magnetic yoke portion 41a and relatively small the 2nd magnetic yoke portion 41b of outer diameter, the outer diameter D 2 of stator core 33 are defined as the 2nd magnetic
Outer diameter at the position of yoke portion 41b.In addition, internal diameter (outer wheels of the internal diameter D4 of frame 24 by exterior contour portion 64
The internal diameter of the position other than limiting unit 67 and screw part 68 in wide portion 64) regulation.At this point, in present embodiment
In, diffuser 15 is synthetic resin system, axially opens the molding die of use in injection molding according to its shape and takes off it
Mould.Therefore, small pattern draft (conical surface) can also be axially set on diffuser 15.For example, in present embodiment
In, diffuser 15 can also be provided in from front side (14 side of centrifugal fan) to rear side (13 side of motor) gradually expanding mode
Pattern draft.In this case, the outer diameter D 2 in the wind path portion 82 as defined in the internal diameter of outer frame 80, by the most imperial palace of outer frame 80
Diameter is in the present embodiment internal diameter, the motor 13 (frame 24) in other words as outer frame 80 of the rear end of outer frame 80
The bonding station (parting position) of the internal diameter of the end of side, i.e. diffuser 15 (outer frame 80) and frame 24 (exterior contour portion 64)
The internal diameter of P provides.In the present embodiment, locate in the bonding station P of diffuser 15 and frame 24, the outer diameter D 2 in wind path portion 82 and
The internal diameter D4 of frame 24 substantially uniform (D2 ≈ D4).Therefore, rank will not be generated at the bonding station P of diffuser 15 and frame 24
Ladder is poor.
As shown in figure 3, a part of frame 24 is chimeric with mounting opening 83.In the present embodiment, a frame body
61 bearing portion 65 is chimeric with the mounting opening 83.Therefore, the opening in rounded shape of mounting opening 83.In addition, should
Mounting opening 83 is set to the central portion of main part 81.In the present embodiment, the mounting opening 83 is along front-rear direction
Penetrate through the recess portion 81a of main part 81.
Through-hole 84 is for example set to the two sides of mounting opening 83 in main part 81.In the present embodiment, these through-holes
84 penetrate through the recess portion 81a of main part 81 respectively along front-rear direction.
Rectifying wings 85 link the outer frame 80 of diffuser 15 with main part 81, and divide wind path portion 82.These rectifying wings
85 the pasts, lateral rear side was obliquely arranged respectively along the direction of rotation of centrifugal fan 14 (Fig. 9).In addition, as shown in Figure 1 and Figure 2,
A part of rectifying wings 85 in these rectifying wings 85 in the state of supporting frame 24 (motor 13) by diffuser 15 with
Frame 24 (frame body 61) is opposed.In the present embodiment, a part of rectifying wings 85 are supporting frame by diffuser 15
It is opposed with a foot 66 of frame 24 (frame body 61) in the state of frame 24 (motor 13).In turn, these rectifying wings
85 in the circumferential generally away from being equally spaced.In the present embodiment, which is arranged than one of frame 24
The fan wing more than 78 of foot 66 and centrifugal fan 14.
As shown in figure 8, the frame positioning region 86 of diffuser 15 is, for example, to supply a foot 66 of a frame body 61 chimeric
Part.Thus, the frame positioning region 86 be provided with it is corresponding with a foot 66 it is multiple, in the present embodiment for 4.It should
Frame positioning region 86 is for example along the inner edge portion of the front-rear direction rear end side (13 side of motor) in the form of slot for being set to outer frame 80.
Fan guard 16 covers a part of centrifugal fan 14 and is installed on diffuser 15.Having in 16 upper opening of fan guard makes
The air inlet 90 that the central portion of centrifugal fan 14 exposes.
Control circuit for example has the driver including inverter circuit and carries out the control of PWM control to the driver
Portion, the control circuit are electrically connected with each terminal 36 and sensor base plate 23.Also, the control circuit is configured to, and passes through driving
Device controls the sense of current that flows in coil 35, conduction time, thus in accordance with time-switching via each coil 35
The magnetic pole for generating each tooth 42 of the stator core 33 of stator 22 respectively.
Also, in the present embodiment, has above-mentioned electric blower 11 in electric dust collector 91 shown in Fig. 10
And control circuit.Electric dust collector 91 has main body of dust collector 92 and dust collecting part 93.As electric dust collector 91, in this reality
It applies in mode, for example, having can be relative to the strip for the wind path body 94 that the main body of dust collector 92 of strip is dismounted
The electric dust collector of rod-type (hand-held), but such as can be it is horizontal, the walking that can even restrain oneself it is self-propelled electronic
Dust catcher can also be applied well.
Electric blower 11 and control circuit are accommodated in main body of dust collector 92.In addition, dust collecting part 93 can be opposite
It is dismounted in the main body of dust collector 92.
Dust collecting part 93 is the part of the trap debris from air, which produced using by the driving of electric blower 11
Raw negative pressure and sucked together with air.In the present embodiment, which for example carries out centrifugation point using to dust
From cyclone portion, but such as also can become by filter trap filter dust, utilize inertia trap debris appoint
Meaning is constituted.
Wind path body 94 makes the suction function generated by the driving of electric blower 11 in ground etc..The wind path body 94 is not
Necessary composition.
Then, the movement of the electric blower 11 of said one embodiment is illustrated.
Electric blower 11 is to be detected by rotation position of the sensor base plate 23 to rotor 21, and according to this
Rotation position controls the sense of current and conduction time that flow in each coil 35 by control circuit, as a result,
Magnetic pole is sequentially formed in each tooth 42, rotates rotor 21 by repulsion, the attraction between these magnetic poles and the magnetic pole of rotor 21.Cause
This, due to the negative pressure that the rotation of the centrifugal fan 14 by electric blower 11 generates, air is sucked electricity from air inlet 90
Dynamic air blower 11.
Then, the air of the sucking is, in the fan wing 78 using centrifugal fan 14 in the centrifugal fan 14 and fan
Pass through in gap between cover 16 and by towards after rectifying around centrifugal fan 14, passes through in the front side of diffuser 15 and towards week
It flows in the wind path portion 82 enclosed.Then, the air is by the rectification of rectifying wings 85 of diffuser 15 and via frame INO Intake Open oral area 69
Inflow motor 13, between stator 22 (stator core 33) and frame 24 (frame body 61 (exterior contour portion 64)) between
Gap, stator 22 inside (between the tooth 42,42 of stator core 33) pass through, and stator 22 and rotor 21 are cooled down, together
When pass through in the frame 24 of the motor 13, each coil 35 and each terminal 36 are cooled down, and from frame exhaust open
Oral area 75 is discharged.
At this point, an embodiment from the description above, the internal diameter D1 in wind path portion 82 are set to be greater than stator iron
At least part of outer diameter D 3 of core 33, the outer diameter D 2 in wind path portion 82 be set to the internal diameter D4 of frame 24 hereinafter, as a result, from from
Heart fan 14 blowout and along wind path portion 82 flow air will not by the inside of the outside of stator core 33, frame 24 interfere and
Discharge.Thus, and become the interior shape of frame 24 compared with the situation of quadrilateral shape etc., be able to suppress enlargement,
And it can ensure the wind path between wind path portion 82 and 33 outside of stator core and 24 inside of frame, i.e. from wind path portion 82 to row
Wind path until out can be improved the air supply efficiency of electric blower 11.
Especially since the internal diameter D1 in wind path portion 82 is greater than the outer diameter at the position of the 2nd magnetic yoke portion 41b of stator core 33
D3, therefore, in wind path portion 82, and the 1st magnetic yoke portion 41a with the stator core 33 configured with terminal 36 (terminal retention portion 52)
Corresponding position is compared, and at position corresponding with the 2nd magnetic yoke portion 41b, air can be made more easily to flow.
Further, since in outer diameter D 2 and the frame 24 in the wind path portion 82, the place bonding station P of diffuser 15 and frame 24
Diameter D4 is substantially uniform, the air quilt that thereby, it is possible to more reliably inhibit to blow out from centrifugal fan 14 and flow along wind path portion 82
The inside of frame 24 interferes, and is able to suppress due to the step difference between diffuser 15 and the inner circumferential of frame 24 and generates disorderly
Stream, can further increase the air supply efficiency of electric blower 11.
Especially, in the present embodiment, coil 35 forms 4 or more magnetic poles on stator core 33, thus with 3
The case where magnetic pole below, is compared, being smoothed of cut-flower of magnetic flux, and the torque of motor 13 improves, therefore can further increase
The efficiency of electric blower 11.
In turn, since stator core 33 is divided into 2 or more magnetic yoke bodies 46, so even being substantially circular (big
Cause circular) stator core 33, such as can also carry out coiling, energy to the magnetic yoke body 46 of each semi-circular shape (semicircular arc-shaped)
It is enough easily configured coil 35, can be improved manufacturing.In addition, the magnetic yoke body 46 for respectively constituting coil 35 is passed through cutting part 44
It is combined, thus, it is possible to be easily configured the stator 22 of round.
Also, it by making electric dust collector 91 have the good above-mentioned electric blower 11 of air supply efficiency, can be improved
Energy conservation and dust suction electric dust collector 91 of good performance.
In addition, stator core 33 is configured in said one embodiment, it is relatively large that back yoke 41 has outer diameter
1st magnetic yoke portion 41a and relatively small the 2nd magnetic yoke portion 41b of outer diameter, but be also capable of forming as substantially certain outer diameter ruler
It is very little.
In addition, being not only the outer diameter D 3 of a part of stator core 33, whole outer diameter D 3 can also be made to be less than wind path portion
82 internal diameter D1.
In turn, electric blower 11 is applied to the attraction of electric dust collector 91 with the case where be illustrated, but example
The exhaust that such as also can be applied as air blower is used.
Also, electric blower 11 can be used in any electrical equipment other than electric dust collector 91.
An embodiment of the invention is illustrated, but the embodiment has been presented by way of example only, not
Intention is defined the range of invention.The new embodiment can be implemented in such a way that another is various, not departed from
Various omissions, displacement, change are able to carry out in the range of the purport of invention.These embodiments and modifications thereof are contained in invention
In range and purport, and it is contained in invention and the range being equal with it documented by Patent request range.
The explanation of symbol
11 electric blowers；13 motor；14 centrifugal fans；15 diffusers (rectification body)；21 rotors；22 stators；24 frames
Frame；33 stator cores；35 coils；46 magnetic yoke bodies；69 frame INO Intake Open oral areas (INO Intake Open oral area)；80 outer frames；81 main parts；
82 wind path portions；91 electric dust collectors；92 main body of dust collector；D1 internal diameter；D2 outer diameter；D3 outer diameter；D4 internal diameter；P bonding station.
Claims (7)
1. a kind of electric blower, which is characterized in that have:
Centrifugal fan；
Motor rotates the centrifugal fan；And
Rectification body is folded between above-mentioned centrifugal fan and above-mentioned motor, and the air blown out from above-mentioned centrifugal fan is upward
Motor side is stated to be rectified,
Above-mentioned motor has:
Rotor is connect with above-mentioned centrifugal fan；
Stator rotates the rotor；And
Frame, have for by above-mentioned rectification body rectification after air flow into INO Intake Open oral area, and store above-mentioned rotor and on
Stator is stated,
Said stator includes
Stator core；And
Coil makes the stator core form magnetic pole,
Above-mentioned rectification body has:
Outer frame supports said frame, and forms exterior contour；
Main part is configured at the inside of the outer frame；And
Wind path portion is formed between above-mentioned outer frame and aforementioned body portion, will be from the air that above-mentioned centrifugal fan is blown out to above-mentioned
INO Intake Open oral area is rectified,
Above-mentioned wind path portion is that internal diameter is set to be greater than at least part of outer diameter of said stator iron core, and outer diameter is set to
Below the internal diameter of said frame.
2. electric blower as described in claim 1, which is characterized in that
The outer diameter in above-mentioned wind path portion is substantially uniform in the joint place of above-mentioned rectification body and said frame and the internal diameter of the frame.
3. electric blower as claimed in claim 1 or 2, which is characterized in that
The magnetic pole that coil makes stator core form 4 or more.
4. electric blower as claimed any one in claims 1 to 3, which is characterized in that
Said stator iron core has circular magnetic yoke.
5. electric blower according to any one of claims 1 to 4, which is characterized in that
Said stator iron core is divided into 2 or more magnetic yoke bodies.
6. the electric blower as described in any one of claims 1 to 5, which is characterized in that
Said stator iron core has the 1st magnetic yoke portion and the 2nd magnetic yoke portion, and the width in the 1st magnetic yoke portion is set to be greater than the 2nd magnetic yoke portion
Width, the internal diameter in above-mentioned wind path portion is set to be greater than the outer diameter in above-mentioned 2nd magnetic yoke portion.
7. a kind of electric dust collector, which is characterized in that have:
Main body of dust collector；And
Electric blower described in any one of claims 1 to 6.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2016226065A JP6718365B2 (en) | 2016-11-21 | 2016-11-21 | Electric blower and vacuum cleaner |
| JP2016-226065 | 2016-11-21 | ||
| PCT/JP2017/032513 WO2018092393A1 (en) | 2016-11-21 | 2017-09-08 | Electric blower and electric vacuum cleaner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109416055A true CN109416055A (en) | 2019-03-01 |
Family
ID=62145522
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201780040109.XA Pending CN109416055A (en) | 2016-11-21 | 2017-09-08 | Electric blower and electric dust collector |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JP6718365B2 (en) |
| CN (1) | CN109416055A (en) |
| WO (1) | WO2018092393A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111202464A (en) * | 2020-02-27 | 2020-05-29 | 刘慕华 | Dust collector |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR102200088B1 (en) * | 2019-02-20 | 2021-01-11 | 엘지전자 주식회사 | Fan motor |
| JP7354569B2 (en) * | 2019-03-28 | 2023-10-03 | ニデック株式会社 | Air blower and vacuum cleaner |
| KR20210136673A (en) * | 2020-05-08 | 2021-11-17 | 엘지전자 주식회사 | Motor assembly |
| KR20210153940A (en) * | 2020-06-11 | 2021-12-20 | 삼성전자주식회사 | Motor assembly and a cleaner comprising the same |
| KR20220010975A (en) * | 2020-07-20 | 2022-01-27 | 엘지전자 주식회사 | Electric motor assembly and hair dryer having the same |
| KR20220014203A (en) * | 2020-07-28 | 2022-02-04 | 엘지전자 주식회사 | Fan motor and hair dryer including the same |
| JP2022100054A (en) * | 2020-12-23 | 2022-07-05 | 株式会社マキタ | Air blower |
| US11802573B2 (en) | 2020-12-23 | 2023-10-31 | Makita Corporation | Blower |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3724413B2 (en) * | 2001-11-05 | 2005-12-07 | 松下電器産業株式会社 | Electric blower for electric vacuum cleaner and electric vacuum cleaner using the same |
| CN102810964A (en) * | 2011-06-02 | 2012-12-05 | 三星电机株式会社 | Switched reluctance motor |
| WO2016024691A1 (en) * | 2014-08-11 | 2016-02-18 | Samsung Electronics Co., Ltd. | Vacuum cleaner |
| CN205064381U (en) * | 2015-08-21 | 2016-03-02 | 德昌电机(深圳)有限公司 | Diffuser, air current production device and dust catcher, hand drier, hair -dryer |
| CN205319910U (en) * | 2015-08-18 | 2016-06-15 | 德昌电机(深圳)有限公司 | Air current production device and dust catcher, hand dryer, hair dryer, hair -dryer |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5117808U (en) * | 1974-07-29 | 1976-02-09 | ||
| JPS61252896A (en) * | 1985-04-30 | 1986-11-10 | Matsushita Electric Ind Co Ltd | Motor driven blower |
| JPH11336700A (en) * | 1998-05-25 | 1999-12-07 | Matsushita Electric Ind Co Ltd | Electric blower |
| JP2010059811A (en) * | 2008-09-02 | 2010-03-18 | Panasonic Corp | Electric blower and vacuum cleaner using the same |
| JP6585873B2 (en) * | 2013-08-09 | 2019-10-02 | 日本電産株式会社 | Blower and vacuum cleaner |
| US20180100517A1 (en) * | 2015-04-28 | 2018-04-12 | Nidec Corporation | Centrifugal blower and vacuum cleaner |
| JP2016223428A (en) * | 2015-05-29 | 2016-12-28 | 日本電産株式会社 | Air blower and cleaner |
| CN106468288A (en) * | 2015-08-21 | 2017-03-01 | 德昌电机(深圳)有限公司 | Bubbler, air flow-producing device and vacuum cleaner, hand dryer, hair-dryer |
-
2016
- 2016-11-21 JP JP2016226065A patent/JP6718365B2/en active Active
-
2017
- 2017-09-08 WO PCT/JP2017/032513 patent/WO2018092393A1/en active Application Filing
- 2017-09-08 CN CN201780040109.XA patent/CN109416055A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3724413B2 (en) * | 2001-11-05 | 2005-12-07 | 松下電器産業株式会社 | Electric blower for electric vacuum cleaner and electric vacuum cleaner using the same |
| CN102810964A (en) * | 2011-06-02 | 2012-12-05 | 三星电机株式会社 | Switched reluctance motor |
| WO2016024691A1 (en) * | 2014-08-11 | 2016-02-18 | Samsung Electronics Co., Ltd. | Vacuum cleaner |
| CN205319910U (en) * | 2015-08-18 | 2016-06-15 | 德昌电机(深圳)有限公司 | Air current production device and dust catcher, hand dryer, hair dryer, hair -dryer |
| CN205064381U (en) * | 2015-08-21 | 2016-03-02 | 德昌电机(深圳)有限公司 | Diffuser, air current production device and dust catcher, hand drier, hair -dryer |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111202464A (en) * | 2020-02-27 | 2020-05-29 | 刘慕华 | Dust collector |
| CN111202464B (en) * | 2020-02-27 | 2023-12-05 | 刘慕华 | Dust collector |
Also Published As
| Publication number | Publication date |
|---|---|
| JP6718365B2 (en) | 2020-07-08 |
| JP2018084151A (en) | 2018-05-31 |
| WO2018092393A1 (en) | 2018-05-24 |
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Application publication date: 20190301 |