CN109936256A - The brushless motor structure of kitchen ventilator wind wheel is improved - Google Patents
The brushless motor structure of kitchen ventilator wind wheel is improved Download PDFInfo
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- CN109936256A CN109936256A CN201711369870.6A CN201711369870A CN109936256A CN 109936256 A CN109936256 A CN 109936256A CN 201711369870 A CN201711369870 A CN 201711369870A CN 109936256 A CN109936256 A CN 109936256A
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- wind wheel
- stator coil
- annular
- kitchen ventilator
- brushless motor
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K21/00—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets
- H02K21/12—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets with stationary armatures and rotating magnets
- H02K21/22—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets with stationary armatures and rotating magnets with magnets rotating around the armatures, e.g. flywheel magnetos
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K3/00—Details of windings
- H02K3/46—Fastening of windings on the stator or rotor structure
- H02K3/50—Fastening of winding heads, equalising connectors, or connections thereto
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
- H02K7/14—Structural association with mechanical loads, e.g. with hand-held machine tools or fans
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Permanent Magnet Type Synchronous Machine (AREA)
- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
Abstract
The present invention relates to a kind of improvement of the brushless motor structure of kitchen ventilator wind wheel, it is made of a fixing axle, a shaft sleeve, a stator coil, an annular magnet, a hollow shell and two side covers, wherein, the outer ring surface of the annular magnet is fixed on the inner edge surface of hollow shell, and its inner ring surface is placed on the silicon steel sheet outer peripheral edge face of stator coil, and is separated with a gap each other；After electric current is passed through stator coil by the starting of circuit drives plate, it can make annular magnet and hollow shell are synchronous on the silicon steel sheet outer peripheral edge face of stator coil to generate rotation, and its torque generated is greater than the torque that known annular magnet rotates on the silicon steel sheet inner edge surface of stator coil, therefore under the wattage of identical output power, the outer radius variable of its motor volume is small, so that the suction air volume and exhaust air rate of wind wheel can be increased after being installed in the wind wheel of kitchen ventilator.
Description
Technical field
The present invention relates to a kind of improvement of the brushless motor structure of kitchen ventilator wind wheel, belong to the brush DC electricity that kitchen ventilator uses
The field of machine (BLDC Motor), by annular magnet in motor and hollow shell in the silicon steel sheet outer peripheral edge face of stator coil
Upper rotation, generated torque are greater than the torque that rotates on the silicon steel sheet inner edge surface of stator coil of known annular magnet, therefore
Under the wattage of identical output power, the outer radius variable of motor volume is small, so that can increase after being installed in the wind wheel of kitchen ventilator
Add the suction air volume and exhaust air rate of wind wheel.
Background technique
It as shown in Figure 1 to Figure 3, is the known blower construction being used in inside kitchen ventilator, it is centrifugal by a wind wheel shell 10, one
Wind wheel 20, a disk brushless motor 30, an electric machine support 40 and a circuit drives plate 50 composition, wherein wind wheel shell 10 is by two-phase
Symmetrical left wind wheel shell 11 is engaged with right wind wheel shell 12, the wind wheel shell 10 left wind wheel shell 11 and with right wind wheel shell 12
Symmetrical left air inlet 13 and right air inlet 14 are equipped on front respectively, and perpendicular to the left air inlet 13 and right air inlet
It is as shown in Figure 1 that an air outlet 15(is formed on the sides that mouth 14 engages)；The center of 20 intermediate bulkhead 21 of centrifugal type wind wheel
It is equipped with an axis hole 22；After the mandrel 31 of the disk brushless motor 30 is the axis hole 22 for placing centrifugal type wind wheel 20, by fixing
Nut B screws togather fixation, and several fixation holes 33 are separately equipped on the shell 32 of disk brushless motor 30, wears by several screw S
Later corresponding each perforation 41 on 40 leading flank of electric machine support is penetrated again, then is screwed togather with nut B, it can be by disk brushless motor 30
It is fixed on electric machine support 40；Several support columns 42 are extended on the trailing flank of the electric machine support 40 again, are worn respectively via screw S
After crossing each perforation 16 in each perforation 43 and right wind wheel shell 12 of support column 42 on right 14 circumferential surface of air inlet, then with nut B spiral shell
Electric machine support 40 can be fixed on the inner edge surface of right wind wheel shell 12 (as shown in Figure 3) by conjunction；The circuit drives plate 50 is merging
Below the air outlet 15 of wind wheel shell 10 in shell, and connected with electric wire W with disk brushless motor 30, it is brushless for controlling disk
The starting of motor 30 operates, and is in addition pierced by outside wind wheel shell 10 with power supply line P, to connect power supply.
After power supply is inputted by power supply line P, circuit drives plate 50 is the rotation of mandrel 31 for starting disk brushless motor 30, and
Make 20 synchronous rotary of centrifugal type wind wheel, and then by the inlet air Wi outside left wind wheel shell 11 and right wind wheel shell 12, respectively by Zuo Jinfeng
Mouthfuls 13 suck with right air inlet 14, then by centrifugal type wind wheel 20 by pressurized outlet air Wo by 15 row of air outlet of wind wheel shell 10
(as shown in Figure 1) out.
It is another as shown in Figure 3 and Figure 4, due to the annular magnet 34 of known disk brushless motor 30 be via rotor back iron 35 with
After mandrel 31 is fixed to each other, and rotated on the interior ring edge face of the silicon steel sheet of stator coil 36, and the annular magnet 34 is to use oxygen
Change iron material matter anisotropy permanet magnet in pole made of knot, outer diameter d1 is 50mm, and magnetic pole is outer diameter orientation, therefore it is selected
The outer diameter d2 of the silicon steel sheet 36 of stator coil is necessary for 94mm, can just match required output power-handling capability,
Therefore, the radius of the annular magnet 34 of outer diameter orientation is 25mm, then the torque arm length L1 of its rotating torque is also 25mm(as schemed
Shown in 4), furthermore, because the 36 outer diameter d2 of silicon steel sheet of the stator coil of disk brushless motor 30 is 94mm, and its shell 32 is again
The requirement being capable of fixing on electric machine support 40 must be reached, therefore the outer diameter d3 of its shell 32 is reaching 140mm(such as Fig. 4 institute
Show), it, can be by the brushless electricity of disk so as a result, making by the air quantity of the sucked inlet air Wi of right air inlet 14 of right wind wheel shell 12
The shell 32 of machine 30 stops and reduces (as shown in two filled arrows Wi in Fig. 3), and leads to left air inlet 13 and right air inlet
The air quantity of 14 both sides inlet air Wi is different and very different, the outlet air Wo air quantity in turn resulting in the discharge of air outlet 15 are also reduced therewith,
This is the current known wind wheel shell 10 using disk brushless motor 30, suction air volume and exhaust air rate after being installed on kitchen ventilator,
The reason of can not increasing and missing.
Summary of the invention
The main object of the present invention is providing a kind of brushless motor structure improvement of kitchen ventilator wind wheel comprising: one is fixed
Axis, the pole body made of metal material are respectively provided with an axial the face of scabbling on two terminal shafts, and in a wherein axial end
It is concaved with a wire casing pipeline, then at the bottom position close to the wire casing pipeline, the surface for being pierced by axis outward is equipped with one and connects
Through-hole；One shaft sleeve, is the cylinder being fixed between the intercommunicating pore of fixing axle and axial end, and bottom is convexly equipped with a circle evagination
Edge；One stator coil, be as several pieces silicon steel sheets it is overlapped after surrounded again with enameled wire made of cylindrical body, and the silicon steel after overlapped
Piece center is equipped with an axial hole；One annular magnet, the pole anisotropy permanet magnet annular solid as made of the sintering of iron oxide material,
The magnetic force of the annular solid interior permanent magnet is to adopt inner diameter orientation arrangement, and outer annular diameter is having a size of 70mm hereinafter, and annular diameters ruler
The very little silicon steel sheet outer diameter slightly larger than stator coil；One hollow shell is the hollow tube being fixed on annular magnet outer ring surface
Shape body, annular diameters are identical as the outer annular diameter of annular magnet, and via the outer ring of tight fit tolerance mode and annular magnet
Reach the fixation that be combined with each other in face；And two side covers, distinguish disc of the upper shield on the two-port face of hollow shell, lateral surface
Be equipped with pass through aperture with the center of medial surface, and cover an intrinsic bearing respectively on the through hole of medial surface, the bearing it is interior
Hole aperture is identical as the axis outer diameter of fixing axle, and a circle boss ring, and the boss ring are separately convexly equipped on the outer peripheral edge face of medial surface
Outer diameter it is identical as the inner ring surface diameter of hollow shell, and combined by be fitted close in a manner of tolerance mutually indentation and fixed.Aforementioned
Invention structural member combination after, can by its hollow shell plant be fixed on the intermediate bulkhead of centrifugal type wind wheel, when power supply by
After the power supply line input of wind wheel shell, circuit drives plate can start therewith and by electric current by stator coil, can make annular magnetic
Iron and hollow shell synchronous generate on the silicon steel sheet outer peripheral edge face of stator coil rotate, and its torque generated is greater than known ring
The torque that shape magnet rotates on the silicon steel sheet inner edge surface of stator coil, therefore under the wattage of identical output power, the present invention
The volume outer radius variable of brushless motor is small so that after being installed in the wind wheel of kitchen ventilator, by wind wheel shell left in the wind wheel it is left into
The air quantity that the right air inlet of air port and right wind wheel shell is sucked is all the same, and then reaches the suction air volume and exhaust air rate for increasing wind wheel
Effect.
It is a further object of the present invention to provide a kind of improvement of the brushless motor structure of kitchen ventilator wind wheel, due to actuation of the present invention
When, annular magnet and hollow shell are that synchronous generate rotates on the silicon steel sheet outer peripheral edge face of stator coil, in addition to generating
Torque be greater than outside the torque that is rotated on the silicon steel sheet inner edge surface of stator coil of known annular magnet, more because in identical output work
Under the wattage of rate, brushless motor volume outer diameter of the invention can be made to become smaller, therefore, while there is the silicon so that its stator coil
Many advantages, such as steel disc can be reduced and its coiling amount of weight saving and enameled wire is also reduced therewith.
The technical solution of the present invention is as follows: a kind of brushless motor structure of kitchen ventilator wind wheel is improved comprising, a fixing axle,
The pole body made of metal material, is respectively provided with an axial the face of scabbling on two terminal shafts, and in a wherein axial end to
It is inside recessed with a wire casing pipeline, then at the bottom position close to the wire casing pipeline, is pierced by axis surface outward equipped with an intercommunicating pore；
One shaft sleeve, is the tube being fixed between the intercommunicating pore of fixing axle and axial end, and bottom is convexly equipped with a circle outward flange；One
Stator coil, be as several pieces silicon steel sheets it is overlapped after surrounded with enameled wire made of cylindrical body, and after overlapped silicon steel sheet center
It is equipped with an axial hole；One annular magnet, the pole anisotropy permanet magnet annular solid as made of the sintering of iron oxide material, the annular
The magnetic force of body interior permanent magnet is to adopt inner diameter orientation arrangement, and annular diameters size is slightly larger than the silicon steel sheet outer diameter of stator coil
One hollow shell, is the hollow tubular body being fixed on annular magnet outer ring surface, and the outer ring of annular diameters and annular magnet is straight
Diameter is identical；And two side covers, it is disc of the upper shield on the two-port face of hollow shell respectively, in lateral surface and medial surface
Centre is equipped with pass through aperture, and covers an intrinsic bearing, the inner hole aperture of the bearing and fixation respectively on the through hole of medial surface
The axis outer diameter of axis is identical, is separately convexly equipped with a circle boss ring on the outer peripheral edge face of medial surface, and the outer diameter of the boss ring with it is hollow
The inner ring surface diameter of shell is identical.
Detailed description of the invention
Fig. 1 is the wind wheel shell stereoscopic schematic diagram being installed on inside known kitchen ventilator.
Fig. 2 is the known exploded perspective schematic diagram for being installed on apoplexy wheel shell, wind wheel and brushless motor inside known kitchen ventilator.
Fig. 3 is the sectional view of 3-3 line in Fig. 1.
Fig. 4 is the sectional view of 4-4 line in Fig. 2.
Fig. 5 is the exploded perspective schematic diagram that the present invention is installed on inside known kitchen ventilator.
Fig. 6 is the exploded perspective view of first embodiment of the invention.
Fig. 7 is the combination stereogram of first embodiment of the invention.
Fig. 8 is the combination section of first embodiment of the invention.
Fig. 9 is the sectional view of 9-9 line in Fig. 8.
Figure 10 is the sectional view of 10-10 line in Fig. 6.
Figure 11 is the sectional view of 11-11 line in Fig. 6.
Figure 12 is the sectional view of 12-12 line in Fig. 6.
Figure 13 is the sectional view of 13-13 line in Fig. 6.
Figure 14 is the sectional view of 14-14 line in Fig. 6.
Figure 15 is the sectional view of 15-15 line in Fig. 6.
Figure 16 is one of the combination diagrammatic cross-section of first embodiment of the invention.
Figure 17 is the two of the combination diagrammatic cross-section of first embodiment of the invention.
Figure 18 is the three of the combination diagrammatic cross-section of first embodiment of the invention.
Figure 19 is the four of the combination diagrammatic cross-section of first embodiment of the invention.
Figure 20 is the five of the combination diagrammatic cross-section of first embodiment of the invention.
Figure 21 is the six of the combination diagrammatic cross-section of first embodiment of the invention.
Figure 22 is the seven of the combination diagrammatic cross-section of first embodiment of the invention.
Figure 23 is the eight of the combination diagrammatic cross-section of first embodiment of the invention.
Figure 24 is the nine of the combination diagrammatic cross-section of first embodiment of the invention.
Figure 25 is the ten of the combination diagrammatic cross-section of first embodiment of the invention.
Figure 26 is the 11 of the combination diagrammatic cross-section of first embodiment of the invention.
Figure 27 is the 12 of the combination diagrammatic cross-section of first embodiment of the invention.
Figure 28 is the sectional view that first embodiment of the invention is installed on known wind wheel shell.
Figure 29 is the stereoscopic schematic diagram that first embodiment of the invention is installed on wind wheel inside known kitchen ventilator.
Figure 30 is the stereogram exploded view of second embodiment of the invention.
Figure 31 is the combination section of second embodiment of the invention.
Specific embodiment
It please refers to shown in Fig. 5 to Figure 15, is the first embodiment of the brushless motor structure improvement of kitchen ventilator wind wheel of the present invention,
It includes.
One fixing axle 100, the pole body made of metal material are respectively provided with an axial the face of scabbling on two terminal shafts
101, and in being concaved with a wire casing pipeline 102 in a wherein axial end, then at the bottom position close to the wire casing pipeline 102
Place, the surface for being pierced by axis outward are as shown in Figure 10 equipped with an intercommunicating pore 103().
One shaft sleeve 200, is the tube being fixed between the intercommunicating pore 103 of fixing axle 100 and axial end, and bottom is convex
It is as shown in figure 11 equipped with a circle outward flange 201().
One stator coil 300, be as several pieces silicon steel sheets 301 it is overlapped after surrounded again with enameled wire 302 made of cylindrical body, in
301 center of silicon steel sheet after this is overlapped is equipped with an axial hole 303, is separately connected with the enameled wire after coiling with electric wire W (as schemed
Shown in 12).
One annular magnet 400, the pole anisotropy permanet magnet annular solid as made of the sintering of iron oxide material, in the annular solid
The magnetic force of portion's magnetic pole be adopt inner diameter orientation arrangement, outer annular diameter D1 be 70mm hereinafter, and annular diameters size be slightly larger than stator
The 301 outer diameter D2(of silicon steel sheet of coil 300 is as shown in Fig. 9 and Figure 13).
One hollow shell 500 is the hollow tubular body being fixed on 400 outer ring surface of annular magnet, annular diameters and ring
The outer annular diameter D1 of shape magnet 400 is identical, and reaches mutual knot via the outer ring surface of tight fit tolerance mode and annular magnet 400
Close fixed (as shown in Fig. 8 and Figure 14).
Two side covers 600, distinguish disc of the upper shield on the two-port face of hollow shell 500, lateral surface 601 with it is interior
The center of side 602 is equipped with pass through aperture 603, and covers an intrinsic bearing 604 respectively on the through hole of medial surface 602 603,
The inner hole aperture of the bearing 604 and the axis outer diameter of fixing axle 100 are identical, are separately convexly equipped with one on the outer peripheral edge face of medial surface 602
Boss ring 605 is enclosed, and the outer diameter of the boss ring 605 is identical as the inner ring surface diameter of hollow shell 500, and to be fitted close tolerance
Mode is mutually pressed into conjunction with fixed (as shown in Fig. 8 and Figure 15).
It is combination step of the invention as shown in Fig. 8 and Figure 16 to Figure 27, firstly, by the outer ring face pressure of annular magnet 400
Enter the inner edge surface (as shown in FIG. 16 and 17) of hollow shell 500, separately by shaft sleeve 200 from its 201 direction of outward flange toward fixed
103 direction of intercommunicating pore of axis 100 is nested with, and until outward flange 201 is close to 103 position of intercommunicating pore (as shown in Figure 18 and Figure 19), is connect
, stator coil 300 is connected the direction of live wire W, the shaft end towards fixing axle 100 without wire casing pipeline 102 is directed at (such as Figure 20
It is shown), then it is placed on its axial hole 303 on the outer edge surface of shaft sleeve 200, and until the outward flange 201 with shaft sleeve 200 connects
Until touching, then electric wire W penetrated into wire casing pipeline 102 by the intercommunicating pore 103 of fixing axle 100, and until being pierced by fixing axle 100
Shaft end portion outside (as shown in figure 21), at this point, being combined fixed annular magnet 400 and hollow shell for aforementioned again
500 give alignment and are nested on the 301 outer peripheral edge face of silicon steel sheet of stator coil 300 (as shown in FIG. 22 and 23), finally, will
Two bearings 604 are respectively implanted on the through hole 603 of two side covers, 600 medial surface (as shown in Figure 24 and Figure 25), then respectively by fixing
The two axial ends of axis 100 are inserted in, until on the end inner ring surface for making the boss ring 605 of two side covers 600 press hollow shell 500
(as shown in Figure 26 and Figure 27) completes combination of the invention (as shown in Figure 8).
It is the mode that the present invention is installed on known wind wheel, firstly, by hollow shell 500 as shown in Fig. 5, Figure 28 and Figure 29
It is placed in the central axle hole 212 of 210 intermediate bulkhead 211 of centrifugal type wind wheel, then so that it is fixed to each other (in such as Figure 28 in a manner of spot welding
Four triangle black figures shown in), then, two ends of fixing axle 100 are planted respectively into left wind wheel shell 110 and right wind wheel
In shell 120 in the central D-shaped hole 112 of left air inlet 111 and the central D-shaped hole 122 of right air inlet 121, exposing will be finally worn again
Electric wire W outside 100 shaft end of fixing axle is connected with the intracorporal circuit drives plate 50 of 10 air outlet of wind wheel shell, 150 lower section shell, i.e., complete
At installation.After power supply is inputted by power supply line P, circuit drives plate 50 makes annular magnet i.e. by electric current by stator coil 300
400 generation magnetic induction and start turning, and synchronize rotate with it hollow shell 500 (fixing axle 100 under this state is because of two axis
End, be fixed in the central D-shaped hole 112 of left wind wheel shell 110 and the central D-shaped hole 122 of right wind wheel shell 120 respectively, therefore
Whole fixing axle 100 not can rotate), and by the inlet air Wi outside left wind wheel shell 110 and right wind wheel shell 120, respectively by a left side
Air inlet 111 and right air inlet 121 sucking (as shown in figure 28), then by centrifugal type wind wheel 210 by pressurized outlet air Wo by
(as shown in Fig. 5 and Figure 29) is discharged in the air outlet 150 of wind wheel shell 10.
As shown in Fig. 4, Fig. 9 and Figure 28, since annular magnet 400 of the invention is the silicon steel sheet 301 in stator coil 300
Outer peripheral edge rotates on face, and the outer annular diameter D1 of the annular magnet 400 is 70mm, therefore its radius is 35mm, then its rotating torque
Torque arm length L2 be also that 35mm(is as shown in Figure 9), therefore generated torque be greater than known disk brushless motor 30 in annular
The torque (as shown in Figure 4) that magnet 34 rotates on 36 inner edge surface of silicon steel sheet of its stator coil, therefore in identical output power
Under watt numerical value, the outer diameter of hollow shell 500 of the present invention is smaller than the outer diameter of known disk brushless motor 30, so that by a left side
The left air inlet 111 of wind wheel shell 110 and the air quantity of the sucked inlet air Wi in 121 both sides of right air inlet of right wind wheel shell 120 are equal
(as shown in figure 28), while the outlet air Wo air quantity being discharged by air outlet 150 also will increase, in other words, the present invention is installed on habit
After knowing the wind wheel in kitchen ventilator, the suction air volume and exhaust air rate of wind wheel can be substantially improved, and increase the smoke evacuation efficiency of kitchen ventilator.
For another example shown in Fig. 4 and Fig. 9, since the present invention and known disk brushless motor 30 are in the numerical value of identical output power
Under, the outer diameter of hollow shell 500 is smaller, and annular magnet 400 of the invention is the silicon steel sheet 301 in stator coil 300
Outer peripheral edge rotates on face, therefore 301 quantity of silicon steel sheet used in the stator coil 300, is made than known disk brushless motor 30
36 quantity of silicon steel sheet is less and overall weight is also relatively light, at the same on the silicon steel sheet 301 used enameled wire coiling
Amount is also reduced therewith.
It is the second embodiment of the present invention as shown in Figure 30 and Figure 31, is scabbled in the two axial ends close to fixing axle 100
On axis at face 101, it is as shown in figure 30 to be more recessed with twice concave ring groove 104(), after being buckled for two E type retaining rings 105, it will cover
It is fixed in the bearing 604 in two side covers 600 on the through hole 603 of medial surface 602 and does positioning and be used (as shown in figure 31).
In conclusion the present invention because by annular magnet in motor and hollow shell in the silicon steel sheet outer peripheral edge of stator coil
It being rotated on face, generated torque is greater than the torque that known annular magnet rotates on the silicon steel sheet inner edge surface of stator coil, therefore
Under the wattage of identical output power, the outer radius variable of motor volume is small, so that after being installed in the wind wheel of kitchen ventilator, it can
Increase the suction air volume and exhaust air rate of wind wheel, and have many advantages, such as that the silicon steel sheet of its stator coil can be reduced and weight saving simultaneously,
Really the height usability and creativeness for meeting industry, are filing an application in accordance with the law.
Claims (5)
1. a kind of brushless motor structure of kitchen ventilator wind wheel is improved, it is characterised in that: including,
One fixing axle, the pole body made of metal material are respectively provided with an axial the face of scabbling on two terminal shafts, and in wherein
It is concaved with a wire casing pipeline in one axial end, then at the bottom position close to the wire casing pipeline, is pierced by axis surface outward
Equipped with an intercommunicating pore；
One shaft sleeve, is the tube being fixed between the intercommunicating pore of fixing axle and axial end, and bottom is convexly equipped with a circle evagination
Edge；
One stator coil, be as several pieces silicon steel sheets it is overlapped after surrounded with enameled wire made of cylindrical body, and the silicon steel after overlapped
Piece center is equipped with an axial hole；
One annular magnet, the pole anisotropy permanet magnet annular solid as made of the sintering of iron oxide material, the annular solid interior permanent magnet
Magnetic force be adopt inner diameter orientation arrangement, annular diameters size be slightly larger than stator coil silicon steel sheet outer diameter；
One hollow shell, is the hollow tubular body being fixed on annular magnet outer ring surface, annular diameters and annular magnet it is outer
Ring diameter is identical；And
Two side covers, are disc of the upper shield on the two-port face of hollow shell respectively, and the center of lateral surface and medial surface is worn
Equipped with pass through aperture, and cover an intrinsic bearing respectively on the through hole of medial surface, the inner hole aperture of the bearing and fixing axle
Axis outer diameter is identical, and a circle boss ring, and the outer diameter and hollow shell of the boss ring are separately convexly equipped on the outer peripheral edge face of medial surface
Inner ring surface diameter it is identical.
2. a kind of brushless motor structure improvement of kitchen ventilator wind wheel as described in claim 1, it is characterised in that: the annular magnet
Outer annular diameter having a size of 70mm or 70mm or less.
3. a kind of brushless motor structure improvement of kitchen ventilator wind wheel as described in claim 1, it is characterised in that: the hollow shell
Inner ring surface be fixed on the outer ring surface of annular magnet, be via be fitted close tolerance mode mutually be pressed into conjunction with fixation.
4. a kind of brushless motor structure improvement of kitchen ventilator wind wheel as described in claim 1, it is characterised in that: two side cover
Boss ring outer diameter is placed on the inner ring surface of hollow shell two-port, is mutually to be pressed into via tight fit tolerance mode in conjunction with solid
It is fixed.
5. a kind of brushless motor structure improvement of kitchen ventilator wind wheel as described in claim 1, it is characterised in that: fixed close to this
On axis at the two axial ends the face of scabbling of axis, it is more recessed with twice concave ring groove, is buckled for two E type retaining rings.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711369870.6A CN109936256A (en) | 2017-12-19 | 2017-12-19 | The brushless motor structure of kitchen ventilator wind wheel is improved |
| PCT/CN2018/121316 WO2019120143A1 (en) | 2017-12-19 | 2018-12-14 | Improved structure of brushless motor of blower of range hood |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711369870.6A CN109936256A (en) | 2017-12-19 | 2017-12-19 | The brushless motor structure of kitchen ventilator wind wheel is improved |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109936256A true CN109936256A (en) | 2019-06-25 |
Family
ID=66983159
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711369870.6A Pending CN109936256A (en) | 2017-12-19 | 2017-12-19 | The brushless motor structure of kitchen ventilator wind wheel is improved |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN109936256A (en) |
| WO (1) | WO2019120143A1 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11837935B2 (en) | 2021-02-02 | 2023-12-05 | Black & Decker, Inc. | Canned brushless motor |
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| JP2008228472A (en) * | 2007-03-14 | 2008-09-25 | Nippon Keiki Works Ltd | Miniature motor |
| CN104854774A (en) * | 2012-11-29 | 2015-08-19 | 吴正铉 | Bldc motor for electrical equipment |
| US20160197531A1 (en) * | 2015-01-07 | 2016-07-07 | Sunonwealth Electric Machine Industry Co., Ltd. | Ceiling Fan Motor |
| CN208062989U (en) * | 2017-12-19 | 2018-11-06 | 蔡应麟 | The brushless motor structure-improved of kitchen ventilator wind wheel |
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| WO2019120143A1 (en) | 2019-06-27 |
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