CN207884430U - Motor and rotary vane arrangement - Google Patents
Motor and rotary vane arrangement Download PDFInfo
- Publication number
- CN207884430U CN207884430U CN201690001066.5U CN201690001066U CN207884430U CN 207884430 U CN207884430 U CN 207884430U CN 201690001066 U CN201690001066 U CN 201690001066U CN 207884430 U CN207884430 U CN 207884430U
- Authority
- CN
- China
- Prior art keywords
- bearing
- blade
- motor
- rotor
- stationary shaft
- 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.)
- Expired - Fee Related
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Classifications
-
- 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
- F04D29/26—Rotors specially for elastic fluids
- F04D29/32—Rotors specially for elastic fluids for axial flow pumps
- F04D29/34—Blade mountings
-
- 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
- H02K5/16—Means for supporting bearings, e.g. insulating supports or means for fitting bearings in the bearing-shields
- H02K5/173—Means for supporting bearings, e.g. insulating supports or means for fitting bearings in the bearing-shields using bearings with rolling contact, e.g. ball bearings
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- 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
Abstract
Motor and rotary vane arrangement are provided, which, which has, is easy installation blade and is easy the construction for keeping the rotation center of blade consistent with the rotation center of rotor.The motor of one mode of the utility model is the vaned motor of installation, which has：Base component；Stationary shaft is mounted on base component, centered on central axis extended in the vertical direction；Rotor has the magnet being located at than stationary shaft by the position of radial outside；Stator is mounted on base component, opposed with magnet across gap；And bearing, it is that can be rotated relative to stationary shaft by rotor bearing.There is rotor the blade mounting portion installed for blade, at least part of blade mounting portion to be located at the position more upper than stationary shaft.
Description
Technical field
The utility model is related to motors and rotary vane arrangement.
Background technology
In the past, the motor being fixed on there are axis on motor carrier.For example, in fan motor disclosed in patent document 1
In, the impeller with multiple blades is installed.
Existing technical literature
Patent document
Patent document 1：Japanese Kokai 2012-102686 bulletins
Utility model content
The utility model project to be solved
In the case where axis is fixed on the motor on motor carrier, blade can not be installed on axis.Therefore, blade is installed
In rotor maintaining part.But in this case, compared with can be in the case where installing blade on axis, exist and be difficult to leaf
Piece is mounted on the problem on motor.In addition, there is also be difficult to make the rotation center of blade is consistent with the rotation center of rotor to ask
Topic.
In view of the above problems, one of its goals is to provide to have to be easy installation blade for one mode of the utility model
And it is easy to make the motor of the rotation center construction consistent with the rotation center of rotor of blade and with such motor
Rotary vane arrangement.
Means for solving the problems
The motor of one mode of the utility model is the vaned motor of installation, wherein the motor has：Base portion
Part；Stationary shaft is mounted on the base component, is configured to centered on central axis extended in the vertical direction；Turn
Son has the magnet being located at than the stationary shaft by the position of radial outside；Stator is mounted on the base component,
It is opposed with the magnet across gap；And bearing, it is that can be rotated relative to the stationary shaft by the rotor bearing.Institute
Stating rotor has the blade mounting portion installed for the blade, and at least part of the blade mounting portion is positioned at more static than described
The upper position of axis.
The rotary vane arrangement of one mode of the utility model has：Said motor；And the blade, it is mounted on
On the blade mounting portion.
The motor of one mode of the utility model is the vaned motor of installation, wherein the motor has：Base portion
Part；Stationary shaft is mounted on the base component, is configured to centered on central axis extended in the vertical direction；Turn
Son has the magnet being located at than the stationary shaft by the position of radial outside；And bearing, it is energy by the rotor bearing
Enough to be rotated relative to the stationary shaft, the bearing has：Upper bearing (metal)；And lower bearing, it is located on the lower than the upper bearing (metal)
The position of side, the upper bearing (metal) and lower bearing are ball bearings, and the rotor has：The bearing cage of tubular is located at than institute
The position for stating Bearing support radial outside keeps the bearing；And elastomeric element, it is located at the bearing cage
Interior, the elastomeric element is directly or indirectly contacted with the outer ring of the upper bearing (metal), and by the outer ring of the upper bearing (metal) to upside
Pressing, the elastomeric element are directly or indirectly contacted with the outer ring of the lower bearing, and the outer ring of the lower bearing is downward
Side presses.
Utility model effect
A mode according to the present utility model is easy installation blade in motor and is easy to make the rotation center of blade
It is consistent with the rotation center of rotor.Additionally, it is provided the rotary vane arrangement with such motor.
Description of the drawings
Fig. 1 is the sectional view for the rotary vane arrangement for showing first embodiment.
Fig. 2 is the sectional view of a part for the motor for showing first embodiment.
Fig. 3 is the vertical view for the motor for showing first embodiment.
Fig. 4 is the sectional view of a part for the motor of the other an example for being shown as first embodiment.
Fig. 5 is the sectional view for the motor for showing second embodiment.
Fig. 6 is the sectional view for the motor for showing third embodiment.
Label declaration
1：Rotary vane arrangement；2：Blade；10、110、210、310：Motor；20：Base component；30：Stator；33：It is static
Axis；40、140、240、340：Rotor；41、241：Magnet maintaining part；42b：Magnet； 43、243：Bearing cage；44、244、
344：Blade mounting portion；44a、244a：Axle portion is installed；44b：Mounting flange portion；44d：Flange lower surface；44e：Second recess portion
(recess portion)；44f：Second hole portion；44g：First hole portion；50：Bearing；51：Upper bearing (metal)；51b：Upper outer ring (outer ring)；52：Lower axle
It holds；52b：Lower outer ring (outer ring)；60、160：Elastomeric element；J：Central axis.
Specific implementation mode
In the following, being illustrated to the motor and rotary vane arrangement of the embodiment of the utility model with reference to attached drawing.With
Under explanation in, the directions extended the central axis J of Fig. 1 are set as upper and lower directions.By the upside in the axial direction of central axis J
Downside is referred to as " downside " by referred to as " upside ".In addition, upper and lower directions is not merely to the title for illustrating and using, limits
Fixed actual position relationship or direction.In addition, the direction parallel with central axis J is referred to as " axial direction ", it will be with central axis J
Centered on radial direction be referred to as " radial direction ", by the circumferential direction centered on central axis J referred to as " circumferential direction ".
In the present specification, also include edge other than the case where strictly axially extending about extending in the axial direction
The case where inclined direction extends in the range of less than 45 ° relative to axial direction.About extending radially, in addition to strictly edge
Radially, also include that edge is inclined relative to radial direction in the range of less than 45 ° except the case where extending with axially vertical direction
The case where oblique direction extends.
＜ first embodiments ＞
Fig. 1 is the sectional view for the rotary vane arrangement 1 for showing present embodiment.Fig. 2 is the motor for showing present embodiment
The sectional view of 10 part.Fig. 3 is the vertical view for the motor 10 for showing present embodiment.
As shown in Figure 1, rotary vane arrangement 1 has motor 10 and blade 2.Blade 2 is installed on motor 10.Motor 10
With base component 20, stationary shaft 33, baffle ring 61, stator 30, bearing 50 and rotor 40.Base component 20 has bracket 20a
With stator retainer 20b.
Stator retainer 20b keeps stator 30.Stator retainer 20b has the axis of the tubular extended in the axial direction
Fixed part 21, the arm 22 of plate, the stator holding canister portion 23 of tubular and supporting projection 24.Arm 22 is from axis fixed part
The end of 21 upside extends to radial outside.Stator keeps canister portion 23 to prolong from the end of the radial outside of arm 22 to upside
It stretches.Supporting projection 24 is upwardly projecting from the upper surface of axis fixed part 21.
Axis fixed part 21 is, for example, the cylindrical shape centered on central axis J.Axis fixed part 21 is fixed on bracket 20a's
Upside.Stator retainer 20b is fixed on the upside of bracket 20a as a result,.
Axis fixed part 21 has the axis mounting hole 21a penetrated through for axis fixed part 21.Central axis J passes through axis mounting hole 21a
Center.
Axis fixed part 21 has the retainer through hole 21b penetrated through in the axial direction for axis fixed part 21.Retainer through hole
21b is located at the position that radial outside is leaned on than axis mounting hole 21a.Retainer through hole 21b is located at exists with for bracket 20a in the circumferential
The identical positions bracket hole portion 25a penetrated through in axial direction.Retainer through hole 21b is, for example, screw hole.
It is, for example, the cylindrical shape centered on central axis J that stator, which keeps canister portion 23,.The radial direction of canister portion 23 is kept in stator
Aftermentioned cricoid core-back 31a is fixed on the face in outside.Stator keeps canister portion 23 that there is stator to keep the outer of canister portion 23
The stage portion 23a that diameter becomes larger from upside towards downside.
Supporting projection 24 is, for example, annular shape.Central axis J passes through the center of supporting projection 24.Supporting projection 24
Positioned at the edge of the radially inner side of axis fixed part 21.Supporting projection 24 is from the aftermentioned lower bearing of lower side bearing 52.
Bracket 20a and stator retainer 20b is, for example, the component of mutually fission.Since stator retainer 20b is to stator
30 parts kept, it is therefore desirable to which the formed precision of stator retainer 20b is relatively high.On the other hand, the molding of bracket 20a
Precision, can also be relatively low compared with the formed precision of stator retainer 20b.
Stator 30 is mounted on base component 20, opposed with magnet 42b across gap.Stator 30 has cricoid stator iron
Core 31 and multiple coils 32.Stator core 31 is that multiple electromagnetic steel plates are laminated and constitute in the axial direction.Stator core 31 has
The multiple tooth 31b for having cricoid core-back 31a and extending from core-back 31a to radial outside.
The medial surface of core-back 31a keeps the lateral surface of canister portion 23 to be fixed such as by indentation with stator.Iron core
The end of the downside of back 31a is contacted with stage portion 23a.Thus, it is determined that stator core 31 is relative to stator retainer 20b's
Axial position.
Stationary shaft 33 is mounted on base component 20.That is, motor 10 is the motor of 33 non-rotary fixed shaft type of stationary shaft.
Stationary shaft 33 is configured to centered on central axis J extended in the vertical direction.Stationary shaft 33 is for example fixed on stator holding
On frame 20b.Therefore, it is possible to improve the relative configuration precision of stationary shaft 33 and stator 30.It is easy to support via bearing 50 as a result,
Rotor 40 in stationary shaft 33 is precisely configured relative to 30 axis of stator.It is for example pressed the end of the downside of stationary shaft 33
Enter the inside of axis fixed part 21.
Baffle ring 61 is substantially a ring-shaped.Baffle ring 61 is, for example, C-shaped baffle ring.Baffle ring 61 is fixed on the peripheral surface of stationary shaft 33.
Baffle ring 61 is located at the position more upper than aftermentioned upper bearing (metal) 51.The axial position of baffle ring 61 is the end of the upside of stationary shaft 33
Near.
Bearing 50 is fixed in stationary shaft 33.Bearing 50 can rotate the bearing of rotor 40 relative to stationary shaft 33.Axis
Hold 50 lower bearing 52 for example with upper bearing (metal) 51 and positioned at the position than upper bearing (metal) 51 on the lower.Upper bearing (metal) 51 and lower bearing
52 be, for example, ball bearing.
As shown in Fig. 2, upper bearing (metal) 51 has as the upper inner ring 51a of cricoid inner ring, upper outer ring 51b and spherical upper
Ball 51c.Upper outer ring 51b is the cricoid component for the radial outside for surrounding upper inner ring 51a.Upper ball 51c be located at upper inner ring 51a with it is upper
Position between the radial direction of outer ring 51b.
Lower bearing 52 has as the lower inner ring 52a of cricoid inner ring, lower outer ring 52b and spherical lower ball 52c.It is lower outer
Circle 52b is the cricoid component for the radial outside for surrounding lower inner ring 52a.Lower ball 52c is located at lower inner ring 52a and lower outer ring 52b's
Position between radial direction.
For example being inserted into or be fitted into upper inner ring 51a and lower inner ring 52a has stationary shaft 33.The end of the upside of upper inner ring 51a
Portion is contacted with the end of the downside of baffle ring 61.Thus, it is therefore prevented that upper inner ring 51a is moved relative to 33 upward side of stationary shaft.
The end of the downside of lower inner ring 52a is contacted with the end of the upside of supporting projection 24.Thus, it is therefore prevented that lower inner ring
52a is moved downward relative to stationary shaft 33.Upper outer ring 51b and lower outer ring 52b are for example inserted into or are embedded in aftermentioned tubular
Bearing cage 43.
As shown in Figure 1, upper bearing (metal) 51 is located at the position more upper than stator 30.Lower bearing 52 weighs radially with stator 30
It is folded.Therefore, with lower bearing 52 be located at it is more upper than stator 30 or the case where than the position on the lower of stator 30 compared with, be easy to make
Motor 10 minimizes in the axial direction.
Rotor 40 has the magnet holding of the bearing cage 43, elastomeric element 60, tubular of the tubular extended in the axial direction
Portion 41, cricoid magnet bearing part 42a, magnet 42b and blade mounting portion 44.Elastomeric element 60 is located at bearing cage 43
It is interior.Magnet maintaining part 41 is fixed on the peripheral surface of bearing cage 43.Magnet bearing part 42a is fixed on magnet maintaining part
On 41.Magnet 42b is located at the position that radial outside is leaned on than stationary shaft 33.Magnet 42b is maintained in magnet maintaining part 41.Blade
Mounting portion 44 is fixed on the upside of magnet maintaining part 41.
Bearing cage 43 is, for example, the cylindrical shape centered on central axis J.Bearing cage 43 is located at than bearing 50
By the position of radial outside.Bearing 50 is that upper bearing (metal) 51 and lower bearing 52 are maintained at internal by bearing cage 43.
Bearing cage 43 has cylindric bearing cage main body 43a, the outside protruding portion extended in the axial direction
43b and Medial extrusion 43c.Outside protruding portion 43b is protruded from the periphery of bearing cage main body 43a towards radial outside.
Medial extrusion 43c is protruded from the inner circumferential of bearing cage main body 43a towards radially inner side.43a is in axis for bearing cage main body
To both-side opening.
Outside protruding portion 43b and Medial extrusion 43c are, for example, the annular shape for circumferentially surrounding stationary shaft 33.Outside protrudes
Portion 43b and Medial extrusion 43c is presented axially in the center of bearing cage main body 43a.Medial extrusion 43c is in axial direction
The upper position between upper bearing (metal) 51 and lower bearing 52.Protruding portion 43b on the outside of the size ratios of Medial extrusion 43c in the axial direction
Size in the axial direction is big.
Elastomeric element 60 is, for example, annular shape.Central axis J passes through the center of elastomeric element 60.As shown in Fig. 2, elastic portion
Part 60 is presented axially in the position between Medial extrusion 43c and upper outer ring 51b.Elastomeric element 60 is, for example, wave washer.
Elastomeric element 60 is for example in direct contact with upper outer ring 51b, and upper outer ring 51b is pressed to upside.
Elastomeric element 60 is contacted with the end of the upside of Medial extrusion 43c.Elastomeric element 60 is for example protruded across inside
Portion 43c and lower outer ring 52b mediate contacts.Elastomeric element 60 presses lower outer ring 52b to downside via Medial extrusion 43c.This
Sample, elastomeric element 60 is to upper bearing (metal) 51 and lower bearing 52 to making upper outer ring 51b and lower outer ring 52b be separated from each other in the axial direction
Towards application precompressed.
Upper bearing (metal) 51 and lower bearing 52 can eliminate in upper bearing (metal) 51 and lower bearing 52, outer ring by being applied in precompressed
With the axially and radially gap in the axially and radially gap of ball and inner ring and ball.Thereby, it is possible to inhibit outer ring, inner ring and
Ball is in axially and radially upper vibration, so as to improve the running accuracy of rotor 40.
Upper outer ring 51b is pressed by elastomeric element 60 to upside, and thus relative to upper inner ring 51a, side is moved slightly upwards.By
This, the outside contact point P12 of upper ball 51c and upper outer ring 51b contacts is located at (with reference to Fig. 2) to be contacted than upper ball 51c and upper inner ring 51a
The positions on the lower interior side contacts point P11.As a result, upper ball 51c be used as with from radially inner side towards radial outside and
The downward inclined virtual spring VS1 in side and function.
Lower outer ring 52b is pressed via Medial extrusion 43c to downside by elastomeric element 60, thus relative to lower inner ring
52a slightly downwards move by side.The outside contact point P22 that ball 52c and lower outer ring 52b is contacted is played to be located at than lower ball 52c under as a result,
Position upper the interior side contacts point P21 of inner ring 52a contact.As a result, lower ball 52c is used as with from radially inner side direction
Radial outside and upwards the inclined virtual spring VS2 in side and function.
By the rotation etc. of the blade 2 on motor 10, for example, to bearing 50 into Fig. 2 direction shown in block arrow
Apply torque load M.Torque load M be, for example, axial center between upper bearing (metal) 51 and lower bearing 52 centered on around with axis
Apply to generally perpendicular direction.
Upper ball 51c is functioned as virtual spring VS1, and lower ball 52c is functioned as virtual spring VS2, by
This, is easy because of the elasticity of upper ball 51c and the elasticity of lower ball 52c by torque load M.Therefore, it is possible to inhibit because of torque load M
And upper bearing (metal) 51 and lower bearing 52 is caused to be lost.
Magnet maintaining part 41 has the fixation canister portion 41b, outside to diameter from fixed canister portion 41b of the tubular extended in the axial direction
The magnet for the tubular that the end of the cap 41a of the plate of side extension and the radial outside from cap 41a extends to downside is kept
Canister portion 41c.
Fixed canister portion 41b is, for example, the cylindrical shape centered on central axis J.The inner peripheral surface of fixed canister portion 41b is for example logical
It crosses indentation etc. and is fixed on the peripheral surface of bearing cage main body 43a.The end of the downside of fixed canister portion 41b is protruded with outside
The end of the upside of portion 43b contacts.Thus, it is determined that axial position of the magnet maintaining part 41 relative to bearing cage 43.
Fixed canister portion 41b has the mounting portion mounting hole 41d penetrated through in the axial direction for fixed canister portion 41b.Mounting portion is fixed
Hole 41d is located at the position that the medial surface than fixed canister portion 41b leans on radial outside.Fixed canister portion 41b for example circumferentially has multiple
Mounting portion mounting hole 41d.Mounting portion mounting hole 41d is, for example, screw hole.
As shown in figure 3, cap 41a is, for example, annular shape.Central axis J passes through the center of cap 41a.As shown in Fig. 1,
Cap 41a is for example connect with the end of the downside of fixed canister portion 41b.Cap 41a is located at the position than upper bearing (metal) 51 on the lower.
The end of the radial outside of cap 41a is located at the position that radial outside is leaned on than stator 30.
Blade mounting portion 44 is the part installed for blade 2.At least part of blade mounting portion 44 is located at than stationary shaft
33 upper positions.Therefore, it is easy blade 2 being mounted on motor 10.In addition, the part as blade mounting portion 44,
It is easy the setting part concentric with stationary shaft 33, and is easy to make the rotation of the rotation center and rotor 40 of installed blade 2
Center is consistent.Therefore, according to the present embodiment, it can obtain having and be easy installation blade 2 and be easy in the rotation for making blade 2
The motor 10 of the heart construction consistent with the rotation center of rotor 40.
The component e.g. seperated with bearing cage 43 and magnet maintaining part 41 of blade mounting portion 44.Therefore, exist
In the case of the design alteration of blade 2, blade mounting portion 44 can be only replaced according to the blade 2 after design alteration.As a result,
It is simple and can reduce and meet setting for blade 2 since entire rotor 40 need not be replaced according to the design alteration of blade 2
Count the manufacturing cost of the motor of change.
Blade mounting portion 44 has the installation axle portion 44a extended in the axial direction centered on central axis J.Therefore, pass through
Blade 2 is mounted on installation axle portion 44a, it is easier to keep the rotation center of blade 2 consistent with the rotation center of rotor 40.
Blade mounting portion 44 has the mounting flange portion 44b radially expanded.Therefore, it is possible to by blade 2 relative to blade
Mounting portion 44 is steadily fixed.In addition, blade 2 can be inhibited obliquely to install.
As shown in figure 3, mounting flange portion 44b is for example, disk-shaped.Central axis J passes through the center of mounting flange portion 44b.
As shown in Figure 1, mounting flange portion 44b is for example connect with the end of the downside of installation axle portion 44a.
The outer diameter of mounting flange portion 44b is bigger and smaller than the most outer diameter of rotor 40 than the outer diameter of bearing 50.Therefore, it is possible to make work
Area for the flange part upper surface 44i of the upper surface of mounting flange portion 44b becomes larger that blade 2 is made accurately to stablize, and
And rotor 40 can be inhibited enlarged radially.In Fig. 1, the most outer diameter of so-called rotor 40 is that magnet keeps canister portion 41c
Most outer diameter.
Flange part upper surface 44i has the first recess portion 44h being recessed to downside.First recess portion 44h is located at flange part upper table
The end of the radial outside of face 44i.As shown in figure 3, flange part upper surface 44i for example has, there are four the first recess portion 44h.Four
First recess portion 44h is circumferentially, equally spaced configured.
As shown in Figure 1, the flange lower surface 44d of lower surface as mounting flange portion 44b has and to be recessed to upside
Second recess portion 44e.Second recess portion 44e is opposed in the axial direction across gap with stationary shaft 33.Therefore, it is easy blade mounting portion 44
It is closely configured with stationary shaft 33.As a result, with blade mounting portion 44 compared with the bigger situation of the axial distance of stationary shaft 33,
The influence of dimensional tolerance etc. is smaller, can improve configuration precision of the blade mounting portion 44 relative to stationary shaft 33.Therefore, it is easy to make
The center of a part (for example, installation axle portion 44a) for blade mounting portion 44 is consistent with the central axis J of stationary shaft 33, to more
It is easy to make the rotation center of blade 2 consistent with the rotation center of rotor 40.In addition, being easy that motor 10 is made to minimize in the axial direction.
In addition, 44 lightweight of blade mounting portion can be made.
Blade mounting portion 44 has the installation leg of the tubular extended from the radially outer edge of mounting flange portion 44b to downside
44c.The end for installing the downside of leg 44c is for example contacted with the end of the upside of fixed canister portion 41b.It installs under the 44c of leg
The end of side is located at the radial outside of bearing cage main body 43a.Installation leg 44c is for example embedded in bearing from radial outside and protects
Hold portion main body 43a.
Blade mounting portion 44 has the first hole portion 44g installed for blade 2 and second in magnet maintaining part 41
Hole portion 44f.First hole portion 44g is penetrated through in the axial direction for mounting flange portion 44b.Second hole portion 44f is for mounting flange portion 44b and peace
Dress leg 44c is penetrated through in the axial direction.
As shown in figures 1 and 3, the first hole portion 44g and the second hole portion 44f are configured at different positions in the circumferential.Therefore,
It can inhibit mounting flange portion 44b becoming large-sized in the axial direction.Blade mounting portion 44 for example have there are four the first hole portion 44g and
Four the second hole portion 44f.First hole portion 44g and the second hole portion 44f are for example circumferentially, equally spaced configured respectively.First hole portion
44g and the second circumferentially alternating configurations of hole portion 44f.
The quantity of first hole portion 44g and the quantity of the second hole portion 44f are not limited to four, for example, can be three hereinafter,
It can be five or more.In addition, the quantity of the first hole portion 44g and the quantity of the second hole portion 44f can also be mutually different.
First hole portion 44g is, for example, screw hole.As shown in Figure 1, the second hole portion 44f and the first recess portion 44h and mounting portion are solid
Determine hole 41d to be overlapped in the axial direction.
Blade mounting portion 44 is fixed on such as by screw 71 in magnet maintaining part 41.
It is solid that screw 71 is screwed into mounting portion from the upside of blade mounting portion 44 via the first recess portion 44h and the second hole portion 44f
Determine in the 41d of hole.The head of screw 71 is located in the first recess portion 44h.
The end of the upside of screw 71 is located at the position than flange part upper surface 44i on the lower.Therefore, when by aftermentioned leaf
When the fixed part 2b of piece 2 is fixed on the 44i of flange part upper surface, the depth of parallelism of portion 2b can be kept fixed.
Blade 2 is, for example, the propeller of multiple helicopters (multi copter).Blade 2 is mounted on blade mounting portion 44
On.Blade 2 has the cricoid fixed part 2b that is fixed on blade mounting portion 44 and extends from fixed part 2b to radial outside
Multiple blade body 2a.Fixed part 2b is, for example, annular shape.Central axis J passes through the center of fixed part 2b.As fixed part
Inserted with installation axle portion 44a on the fixed part medial surface 2c of the medial surface of 2b.The lower surface of fixed part 2b and flange part upper surface
44i is contacted.
Fixed part 2b has the fixed part through hole 2d penetrated through in the axial direction for fixed part 2b.Fixed part through hole 2d with
First hole portion 44g is overlapped in the axial direction.Fixed part 2b is fixed with blade mounting portion 44 such as by screw 72.72, screw
Such as the first hole portion 44g is screwed into from the upside of fixed part 2b via fixed part through hole 2d.Screw 72 is used as fixed part 2b (leaves
Piece 2) rotation prevention portion and function.Thereby, it is possible to prevent blade 2 relative to 40 relative rotation of rotor.That is, being pacified by being arranged
Flange part 44b is filled, rotation prevention portion of the screw 72 as blade 2 can be set.
Although illustration omitted, multiple blade body 2a are circumferentially, equally spaced configured.Blade body 2a is than motor 10 to diameter
Extend outward.That is, blade 2 extends than motor 10 to radial outside.As an example, the outer diameter of blade 2 is the outer diameter of motor 10
8 times or so.
For example, in the case of the axis that the motor of outer-rotor type and axis are rotated rotary-type motor, have than stator
The magnet maintaining part of the cap extended to radial outside is fixed on axis.Therefore, on the top that magnet maintaining part is fixed on to axis
In the case of, the bearing supported to axis is located at the position than cap on the lower, thus there are blade mounting portion and bearings
The problem of axial distance becomes larger.When blade mounting portion becomes larger at a distance from bearing, it is possible to can make to be mounted on blade mounting portion
On the center of gravity of blade detached with the center of gravity of bearing, so that the rotation of blade is become unstable.
On the other hand, if magnet maintaining part to be fixed on to the lower part of axis, bearing can be made close to blade mounting portion.But
It is in this case, there are problems that the construction of motor is easy to complicate.
In contrast, it is being the motor of outer-rotor type and 33 non-rotary fixed shaft type of stationary shaft as present embodiment
In the case of 10, magnet maintaining part 41 is connect with bearing cage 43.Therefore, it is easy to configure on bearing 50 to lean on than cap 41a
The position of upside, without making the construction of motor 10 complicate.It is easy to make bearing 50 close to blade mounting portion 44 as a result, thus
It is easy to keep the center of gravity of the center of gravity of blade 2 and bearing 50 close.Therefore, it is easy to make the spin stabilization of blade 2.
In Fig. 1, upper bearing (metal) 51 is located at the position more upper than cap 41a.Therefore, it is possible to reduce upper bearing (metal) 51 and leaf
The distance of piece mounting portion 44.Thereby, it is possible to make the spin stabilization of blade 2.
In addition, by the way that the second recess portion 44e is arranged, it is easy to make stationary shaft 33 close to blade mounting portion 44, therefore can make
Bearing 51 is closer to blade mounting portion 44.Therefore, it is possible to make the rotation of blade 2 more stabilize.
In addition, in the case where blade 2 is bigger than motor 10, the rotation of blade 2 is easy to become especially unstable.With this phase
It is right, according to the present embodiment, upper bearing (metal) 51 can be made close to blade mounting portion 44, to make the spin stabilization of blade 2.That is,
The effect of the spin stabilization for making blade 2 in present embodiment in the case where blade 2 is bigger than motor 10 can be especially big
It obtains.
In addition, in the case of the axis that the motor of outer-rotor type and axis are rotated rotary-type motor, the heat of stator from
Two bearings are transmitted to axis, and rotor is transmitted to from axis.In this case, since the transmission path of the heat from axial rotor is only
Heat across the path of axis and the connecting portion of rotor, therefore stator is difficult to be transmitted to rotor.It is asked as follows as a result, existing
Topic：The heat of stator is easy accumulation within the bearing to be easy that bearing is made to become high temperature.
In contrast, in the case of motor 10 of outer-rotor type and 33 non-rotary fixed shaft type of stationary shaft, stator 30
Heat via base component 20 be transmitted to stationary shaft 33, be transmitted to rotor 40 from stationary shaft 33 via bearing 50.Therefore, from static
Axis 33 to rotor 40 heat transmission path be across the path of upper bearing (metal) 51 and across the path of lower bearing 52 at least two
Path.The heat of stator 30 is transmitted as readily to rotor 40 as a result, so as to inhibit upper bearing (metal) 51 and lower bearing 52 to become high temperature.
In addition, since stator retainer 20b has the arm 22 extended radially, it is easy that stator 30 will be fixed with
Stator keep canister portion 23 to be disposed substantially away from the position of bearing 50.Thereby, it is possible to until so that the heat of stator 30 is reached bearing 50
Path length is elongated.Therefore, it is easy to make the heat of stator 30 to be discharged to outside before reaching bearing 50, so as to more inhibit
Bearing 50 becomes high temperature.
The present invention is not limited to the above embodiments, can also use other structures.In the following description, pair with it is upper
Bright identical structure is stated, is omitted the description sometimes through identical label etc. is suitably marked.
About the structure of blade mounting portion 44, as long as at least part is located at the position more upper than stationary shaft 33,
Entirely the position more upper than stationary shaft 33 can also be located at by blade mounting portion 44.Blade mounting portion 44 can not have installation axle
Portion 44a can not also have mounting flange portion 44b.Blade mounting portion 44 for example can also be and bearing cage 43 and magnet
The individual component of either or both in maintaining part 41.
Second hole portion 44f can also be the hole installed for bearing cage 43.Bearing 50 is not limited to ball bearing, can also be
The sleeve bearing of sintering metal is used.In the case where bearing 50 is sleeve bearing, the quantity of bearing 50 can be one,
It can be two or more.In addition, bearing can also be the hydrodynamic pressure bearing for using liquid or gas as lubricating fluid.
For example, the variation of the friction loss caused by temperature change of hydrodynamic pressure bearing is larger.Hydrodynamic pressure bearing
The more high then friction loss of temperature is smaller, but the rigidity of hydrodynamic pressure bearing also reduces simultaneously.Therefore, it is necessary to make hydrodynamic pressure bearing
Temperature be maximum temperature in the case of rigidity be rigidity needed for bottom line, still, in this case, as a result,
There are problems that the summation of the friction loss generated when using motor is become larger.
For the problem, according to the present embodiment, it is easy to make the heat of stator 30 before reaching bearing 50 as described above
It is discharged to outside, so as to more inhibit bearing 50 to become high temperature.Therefore, it is possible to inhibit bearing 50 temperature change width
Degree.Even if can inhibit to produce when using motor if as a result, in the case where bearing 50 is carried out use as hydrodynamic pressure bearing
The summation of raw friction loss becomes larger.
On the other hand, the variation of the friction loss caused by temperature change of ball bearing is smaller.Therefore, as this embodiment party
Formula use like that ball bearing as bearing 50 in the case of, compared with the case where using hydrodynamic pressure bearing, be easy to make using
The summation smaller of the friction loss generated when motor.
Elastomeric element 60, which for example may be used, directly or indirectly to be contacted with upper outer ring 51b and by upper outer ring 51b to upside
The structure of pressing.Elastomeric element 60 for example can also use directly or indirectly contacted with lower outer ring 52b and by lower outer ring 52b to
The structure of downside pressing.Another configuration example of elastomeric element 60 is shown in FIG. 4.Fig. 4 is shown as present embodiment
The sectional view of a part for another motor 110.
As shown in figure 4, motor 110 has rotor 140.Rotor 140 has elastomeric element 160.Elastomeric element 160 is in axis
Position between Medial extrusion 43c and lower outer ring 52b upwards.Elastomeric element 160 for example directly connects with lower outer ring 52b
It touches and presses lower outer ring 52b to downside.
Elastomeric element 160 is contacted with the end of the downside of Medial extrusion 43c.Elastomeric element 160 is for example across interior pleurapophysis
Go out portion 43c and upper outer ring 51b mediate contacts.Elastomeric element 160 presses upper outer ring 51b to upside via Medial extrusion 43c
Pressure.As a result, in the same manner as structure shown in Fig. 2, to upper bearing (metal) 51 and lower bearing 52 to making upper outer ring 51b and lower outer ring 52b exist
The direction being separated from each other in axial direction applies precompressed.The knot of the other structures of elastomeric element 160 and elastomeric element 60 shown in Fig. 2
Structure is identical.
In addition, as another example, such as elastomeric element 60 can also be configured to the axial direction in baffle ring 61 and upper inner ring 51a
Between or the position between supporting projection 24 and the axial direction of lower inner ring 52a.
As long as elastomeric element 60 applies precompressed to upper bearing (metal) 51 and lower bearing 52, then it is not particularly limited.Elastomeric element 60
It such as can also be helical spring.
Blade 2 is simultaneously not particularly limited, such as can also be impeller.Size and number of blade body 2a etc. do not limit especially
It is fixed.
The purposes of rotary vane arrangement 1 is simultaneously not particularly limited.Rotary vane arrangement 1 can for example be mounted in multiple helicopters
Driving device, can also be air-supply arrangement.
＜ second embodiments ＞
Fig. 5 is the sectional view for the motor 210 for showing present embodiment.And the above embodiment in the following description, pair
Identical structure is omitted the description sometimes through identical label etc. is suitably marked.
As shown in figure 5, rotor 240 has bearing cage 243.Bearing cage 243 has bearing cage main body
43a, outside protruding portion 243b and Medial extrusion 43c.Outside protruding portion 243b is from the periphery of bearing cage main body 43a
It is protruded towards radial outside.Outside protruding portion 243b is, for example, the cylindrical shape centered on central axis J.Outside protruding portion 243b
The end of the upside of bearing cage 243 is extended to from the axial substantial middle of bearing cage 243.
Bearing cage 243, which has from the upper table mounting portion that side is recessed downwards, is fitted into recess portion 243e.Mounting portion is fitted into recessed
Portion 243e is, for example, annular shape.Central axis J passes through the center of the chimeric recess portion 243e of mounting portion.Mounting portion is fitted into recess portion 243e and exists
The medial surface of bearing cage 243 is open.
Bearing cage 243, which has, is fitted into the mounting portion mounting hole that the bottom surface of recess portion 243e is recessed to downside from mounting portion
243d.Mounting portion mounting hole 243d and the second hole portion 44f are be overlapped in the axial direction.Mounting portion mounting hole 243d is located at outside protruding portion
243b.Mounting portion mounting hole 243d is, for example, screw hole.
Magnet maintaining part 241 has the lid of the plate extended from the end of the upside of bearing cage 243 to radial outside
The magnet for the tubular that the end of portion 241a and radial outside from cap 241a extends to downside keeps canister portion 241c.Cap
241a is for example positioned at the position more upper than upper bearing (metal) 51.Bearing cage 243 and magnet maintaining part 241 are, for example, single portion
Part.In addition, bearing cage 243 and magnet maintaining part 241 can also be independent component.
Blade mounting portion 244 has installation axle portion 244a and mounting flange portion 44b.Blade mounting portion 244 and first is implemented
The blade mounting portion 44 of mode is different, does not have installation leg 44c.Installation axle portion 244a extends in the axial direction.Axle portion is installed
244a has the axle portion through hole 244j penetrated through in the axial direction for installation axle portion 244a.
The cross sectional shape of axle portion through hole 244j is, for example, circle, central axis J through its centers.Axle portion through hole
The end of the downside of 244j is in the second recess portion 44e openings.Have by the way that axle portion through hole 244j is arranged, such as in the fixed part of blade
In the case of the axis outstanding of 210 side of oriented motor, axis can be made chimeric with axle portion through hole 244j and blade is installed.Therefore, energy
Enough types for increasing the blade being mounted on blade mounting portion 244.
The end of the downside of mounting flange portion 44b is located at mounting portion and is fitted into recess portion 243e.Mounting flange portion 44b for example with
It is chimeric that mounting portion is fitted into recess portion 243e.The end that the end of the downside of mounting flange portion 44b is located at the upside than cap 241a is leaned on
The position of downside.Therefore, it is easy that blade mounting portion 244 is made to be configured in a manner of close to upper bearing (metal) 51.It is easy to make peace as a result,
The spin stabilization of blade 2 on blade mounting portion 244.
By the way that screw 71 is screwed into via the first recess portion 44h and the second hole portion 44f in mounting portion mounting hole 243d, and incite somebody to action
Mounting flange portion 44b is fixed on bearing cage 243.That is, in the present embodiment, the second hole portion 44f is mounted in bearing
Hole portion in maintaining part 243.
＜ third embodiments ＞
Fig. 6 is the sectional view for the motor 310 for showing present embodiment.And the above embodiment in the following description, pair
Identical structure is omitted the description sometimes through identical label etc. is suitably marked.
Rotor core main body 341a in rotor 340 has that side is recessed downwards from the upper table of rotor core main body 341a
Mounting portion is fitted into recess portion 341g.It is, for example, annular shape that mounting portion, which is fitted into recess portion 341g,.Central axis J passes through mounting portion to be fitted into recess portion
The center of 341g.
Cap 341b is, for example, annulus plate.Central axis J passes through the center of the chimeric recess portion 341g of mounting portion.Cap
341b covers the upside of stator 30.The end of the radial outside of cap 341b is radially positioned keeps canister portion 323 with stator
The identical position of peripheral surface.
Motor 310 is the motor of inner-rotor type.The axis that inner-rotor type and axis the are rotated rotary-type motor the case where
Under, since rotor core is located at the position between the mutual axial direction of bearing supported to axis, the mutual axial direction of bearing
Distance becomes larger.There is a problem of that motor is easy enlargement in the axial direction as a result,.
In contrast, as the motor of present embodiment 310, in the motor of 33 fixed fixed shaft type of stationary shaft
In, it is easy to make bearing 50 each other axially move closer to so as to inhibit motor 310 enlarged in the axial direction.
Blade mounting portion 344 has installation axle portion 44a and mounting flange portion 44b.Blade mounting portion 344 and the second embodiment party
The blade mounting portion 244 of formula does not have installation leg 44c similarly.The end of the downside of mounting flange portion 44b is located at mounting portion
In chimeric recess portion 341g.Mounting flange portion 44b recess portion 341g for example chimeric with mounting portion are chimeric.The downside of mounting flange portion 44b
End be located at the upper surface position on the lower than rotor core 341.Mounting flange portion 44b is fixed by screw 71 etc.
On rotor core 341.
The motor of the utility model can be applied to be not limited to stator and magnet radially across the opposed motor in gap,
Including stator and magnet are in the axial direction across the motor of the opposed axial-gap in gap.
Each structure of above-mentioned first embodiment to third embodiment can be appropriate group in mutual reconcilable range
It closes.
Claims (11)
1. a kind of motor, is equipped with blade, which is characterized in that
The motor has：
Base component；
Stationary shaft is mounted on the base component, is configured to centered on central axis extended in the vertical direction；
Rotor has the magnet being located at than the stationary shaft by the position of radial outside；
Stator is mounted on the base component, opposed with the magnet across gap；And
The rotor bearing is that can be rotated relative to the stationary shaft by bearing,
The rotor has the blade mounting portion for blade installation,
At least part of the blade mounting portion is located at the position more upper than the stationary shaft.
2. motor according to claim 1, which is characterized in that
The blade mounting portion has the installation axle portion extended in the axial direction centered on the central axis.
3. motor according to claim 1 or 2, which is characterized in that
The blade mounting portion has the mounting flange portion radially expanded.
4. motor according to claim 3, which is characterized in that
The outer diameter of the mounting flange portion is bigger and smaller than the most outer diameter of the rotor than the outer diameter of the bearing.
5. motor according to claim 3, which is characterized in that
The flange lower surface of lower surface as the mounting flange portion has the recess portion being recessed to upside,
The recess portion is opposed in the axial direction across gap with the stationary shaft.
6. motor according to claim 1, which is characterized in that
The rotor has：
The bearing cage of tubular is located at the position than the Bearing support radial outside, is kept to the bearing；And
Magnet maintaining part keeps the magnet,
The blade mounting portion is the component with the bearing cage and the magnet securing portion body.
7. motor according to claim 6, which is characterized in that
The blade mounting portion has：
First hole portion is installed for the blade；And
Second hole portion is installed for the bearing cage or the magnet maintaining part,
First hole portion and second hole portion are configured at different positions in the circumferential.
8. motor according to claim 1, which is characterized in that
The bearing has：
Upper bearing (metal)；And
Lower bearing is located at the position than the upper bearing (metal) on the lower,
The upper bearing (metal) and lower bearing are ball bearings,
The rotor has：
The bearing cage of tubular is located at the position than the Bearing support radial outside, is kept to the bearing；And
Elastomeric element is located in the bearing cage,
The elastomeric element is directly or indirectly contacted with the outer ring of the upper bearing (metal), and by the outer ring of the upper bearing (metal) to upside
Pressing,
The elastomeric element is directly or indirectly contacted with the outer ring of the lower bearing, and by the outer ring of the lower bearing to downside
Pressing.
9. a kind of rotary vane arrangement, which is characterized in that
The rotary vane arrangement has：
Motor described in claim 1；And
The blade is mounted on the blade mounting portion.
10. rotary vane arrangement according to claim 9, which is characterized in that
The blade is close to radial outside than the motor and extends.
11. a kind of motor, is equipped with blade, which is characterized in that
The motor has：
Base component；
Stationary shaft is mounted on the base component, is configured to centered on central axis extended in the vertical direction；
Rotor has the magnet being located at than the stationary shaft by the position of radial outside；And
The rotor bearing is that can be rotated relative to the stationary shaft by bearing,
The bearing has：
Upper bearing (metal)；And
Lower bearing is located at the position than the upper bearing (metal) on the lower,
The upper bearing (metal) and lower bearing are ball bearings,
The rotor has：
The bearing cage of tubular is located at the position than the Bearing support radial outside, is kept to the bearing；And
Elastomeric element is located in the bearing cage,
The elastomeric element is directly or indirectly contacted with the outer ring of the upper bearing (metal), and by the outer ring of the upper bearing (metal) to upside
Pressing,
The elastomeric element is directly or indirectly contacted with the outer ring of the lower bearing, and by the outer ring of the lower bearing to downside
Pressing.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2015-155336 | 2015-08-05 | ||
| JP2015155336A JP2017034933A (en) | 2015-08-05 | 2015-08-05 | Motor and rotary vane device |
| PCT/JP2016/071256 WO2017022485A1 (en) | 2015-08-05 | 2016-07-20 | Motor and rotary blade apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207884430U true CN207884430U (en) | 2018-09-18 |
Family
ID=57942857
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201690001066.5U Expired - Fee Related CN207884430U (en) | 2015-08-05 | 2016-07-20 | Motor and rotary vane arrangement |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JP2017034933A (en) |
| CN (1) | CN207884430U (en) |
| WO (1) | WO2017022485A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113261183A (en) * | 2019-01-08 | 2021-08-13 | 日本电产株式会社 | Motor and rotary blade device |
| CN113261183B (en) * | 2019-01-08 | 2024-04-16 | 日本电产株式会社 | Motor and rotary vane device |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11316400B2 (en) * | 2017-10-11 | 2022-04-26 | Lg Innotek Co., Ltd. | Motor |
| DE102019122603A1 (en) * | 2019-08-22 | 2021-02-25 | Webasto SE | Rotor device and stator device for a flat brushless electric motor and flat brushless electric motor for a roof system of an automobile |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2607390Y2 (en) * | 1993-07-05 | 2001-07-09 | 株式会社安川電機 | Dustproof structure of fan motor |
| JP2001065497A (en) * | 1999-08-26 | 2001-03-16 | Matsushita Electric Works Ltd | Direct current brushless fan motor |
| JP4814627B2 (en) * | 2005-12-06 | 2011-11-16 | 日本電産コパル電子株式会社 | Blower |
| KR100955034B1 (en) * | 2008-04-18 | 2010-04-28 | 씨엠아이 주식회사 | outer-rotor type motor and outer-rotor type in-wheel motor |
| JP2009281481A (en) * | 2008-05-21 | 2009-12-03 | Sony Corp | Bearing unit, motor using the same and electronic equipment |
| JP2012102686A (en) * | 2010-11-11 | 2012-05-31 | Nippon Densan Corp | Ventilation fan |
-
2015
- 2015-08-05 JP JP2015155336A patent/JP2017034933A/en not_active Ceased
-
2016
- 2016-07-20 WO PCT/JP2016/071256 patent/WO2017022485A1/en active Application Filing
- 2016-07-20 CN CN201690001066.5U patent/CN207884430U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113261183A (en) * | 2019-01-08 | 2021-08-13 | 日本电产株式会社 | Motor and rotary blade device |
| CN113261183B (en) * | 2019-01-08 | 2024-04-16 | 日本电产株式会社 | Motor and rotary vane device |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2017034933A (en) | 2017-02-09 |
| WO2017022485A1 (en) | 2017-02-09 |
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180918 |
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| CF01 | Termination of patent right due to non-payment of annual fee |