CN108390499A - Motor and air blower - Google Patents
Motor and air blower Download PDFInfo
- Publication number
- CN108390499A CN108390499A CN201810095535.XA CN201810095535A CN108390499A CN 108390499 A CN108390499 A CN 108390499A CN 201810095535 A CN201810095535 A CN 201810095535A CN 108390499 A CN108390499 A CN 108390499A
- Authority
- CN
- China
- Prior art keywords
- motor
- field frame
- stator core
- stator
- motor field
- 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.)
- Granted
Links
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
- F04D29/66—Combating cavitation, whirls, noise, vibration or the like; Balancing
- F04D29/661—Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for elastic fluid pumps
- F04D29/668—Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for elastic fluid pumps damping or preventing mechanical vibrations
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/24—Casings; Enclosures; Supports specially adapted for suppression or reduction of noise or vibrations
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D25/00—Pumping installations or systems
- F04D25/02—Units comprising pumps and their driving means
- F04D25/06—Units comprising pumps and their driving means the pump being electrically driven
- F04D25/0606—Units comprising pumps and their driving means the pump being electrically driven the electric motor being specially adapted for integration in the pump
-
- 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
- F04D29/05—Shafts or bearings, or assemblies thereof, specially adapted for elastic fluid pumps
- F04D29/056—Bearings
- F04D29/059—Roller bearings
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K1/00—Details of the magnetic circuit
- H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
- H02K1/12—Stationary parts of the magnetic circuit
- H02K1/18—Means for mounting or fastening magnetic stationary parts on to, or to, the stator structures
- H02K1/185—Means for mounting or fastening magnetic stationary parts on to, or to, the stator structures to outer stators
-
- 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
- H02K5/1732—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 radially supporting the rotary shaft at both ends of the rotor
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D17/00—Radial-flow pumps, e.g. centrifugal pumps; Helico-centrifugal pumps
- F04D17/08—Centrifugal pumps
- F04D17/16—Centrifugal pumps for displacing without appreciable compression
-
- 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
- F04D29/05—Shafts or bearings, or assemblies thereof, specially adapted for elastic fluid pumps
- F04D29/053—Shafts
-
- 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
- F04D29/28—Rotors specially for elastic fluids for centrifugal or helico-centrifugal pumps for radial-flow or helico-centrifugal pumps
- F04D29/281—Rotors specially for elastic fluids for centrifugal or helico-centrifugal pumps for radial-flow or helico-centrifugal pumps for fans or blowers
-
- 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
- F04D29/4206—Casings; Connections of working fluid for radial or helico-centrifugal pumps especially adapted for elastic fluid pumps
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Motor Or Generator Frames (AREA)
- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
A kind of motor, by the way that vibration-proof structure is arranged to the stator, rotor, bearing that are assembled in motor case body, to make the vibration of motor be difficult to be transferred to motor field frame.Stator core (2a) is integrally assembled in the internal face of motor field frame (1b) via elastic component (3) radially, bear box (4a, 4b) is integrally assembled in the centre bore surrounded by pole tooth (2e) from the axial both ends of stator core 2a, and the radially inner side of above-mentioned pole tooth (2e) towards stator core (2a) projects.
Description
Technical field
The present invention relates to one kind being used for such as CPAP (continuous positive airway pressures：Continuous Positive Airway
Press) with etc. motor and include the air blower of this motor.
Background technology
As the part for constituting motor, there are rotor, stator, bearing, motor field frame etc..Such as it is electronic in inner-rotor type
In machine, the outer radius portion of the stator core of stator is fixed on motor field frame.In addition, rotor can be rotated via bearing parts
Ground axle suspension is in motor field frame.
In above-mentioned electric motor structure, is vibrated caused by the magnetic attraction of stator and rotor, is related to rotor and bearing
Vibration can all be transferred to motor field frame.In addition, the vibration for being transferred to motor field frame can be with the rotation of motor
Speed is accelerated and becomes larger.
For this purpose, after taking and surrounding or sling equal vibrationproof countermeasure by the motor after assembling using elastic part etc.,
With assembling product.For example, the peripheral part in ball bearing is equipped with the cover of the tubular being made of elastomer, above-mentioned ball bearing is embedding
Enter the housing for ball bearing equipped with through-hole, above-mentioned through-hole is used to inhibit to be pivotally supported the creep of the bearing of rotor.Above-mentioned
The inner peripheral surface of cover is equipped with protrusion corresponding with through-hole.A kind of technology (referring to patent document 1) is proposed, by the way that protrusion to be embedded in
Through-hole is installed on the peripheral part of housing for ball bearing will cover, to be pressed the outer ring of ball bearing to press down using protrusion
The rotation of outer ring processed.
Existing technical literature
Patent document
Patent document 1：Japanese Patent Laid-Open 2003-250245 bulletins
In above-mentioned motor, vibration protection, if being surrounded motor using elastic component, motor and assembling are set
There is the outer diameter of the air blower of motor that can become larger, if slinging motor using elastic component, needs the space of vibrationproof, because
This shape of product can become larger.
In addition, in patent document 1, due to being equipped with the cover being made of elastomer in the peripheral part of housing for ball bearing,
Therefore the vibration between rotor and bearing can slightly decay, but the vibration between stator and rotor is easy to be transferred to motor field frame
(holder) is to become noise.
Invention content
The present invention makees to solve above-mentioned technical problem, it is intended that providing a kind of motor and including above-mentioned electricity
Motivation, the air blower that realizes mute, above-mentioned motor pass through stator, rotor, the axis to being assembled in motor case body
Setting vibration-proof structure is held, to make the vibration of motor be difficult to be transferred to motor field frame.
To achieve the goals above, the present invention includes such as lower structure.
A kind of motor, including：Motor field frame；Stator, said stator are integrally assembled in above-mentioned motor case body
Stator core；Bear box, above-mentioned bear box are concentrically configured at the centre bore of said stator iron core and integrally assemble, and
Be formed as tubular；And rotor, the bearing that the armature spindle of above-mentioned rotor is inserted into above-mentioned bear box are pivotally supported into and can revolve
Turn, which is characterized in that said stator iron core is between the stator core and above-mentioned motor field frame along radial sandwiched elasticity structure
Part and integrally assemble, above-mentioned bear box is integrally assembled in the center surrounded by pole tooth from the axial both ends of said stator iron core
The radially inner side in hole, above-mentioned pole tooth towards above-mentioned stator core projects.
According to above structure, stator core, bearing and bear box are integrally fixed, and elastic component is sandwiched and is assembled in
Between stator core and motor field frame.Therefore, by can support in the stator that is assembled in motor case body and rotatably
Vibration-proof structure is set in the rotor of said stator, to make the vibration of motor be difficult to be transferred to motor field frame.
It is preferable that above-mentioned bear box is integrally assembled in from the both ends of said stator iron core in being surrounded by pole tooth
The radially inner side in heart hole, above-mentioned pole tooth towards above-mentioned stator core projects.Thereby, due to bear box be not with motor field frame and
It is integrally to be assembled with stator core, therefore vibration is difficult to be transferred directly to motor field frame from bearing.
Axially sandwiched and elastic component can be assembled between above-mentioned bear box and above-mentioned bearing.
It thereby, can be by applying precompressed to high-speed rotating bearing to increase the service life.
Can be wave washer, flat spring, disk spring, helical spring etc. in addition, as elastic component, but due to
In being used using the CPAP of small rolling ball bearing under high speed rotation, compared with wave washer, helical spring is compressed from natural length
And the deviation of precompressed that the method for sandwiched is applied is smaller, therefore steadily can apply load to axial, be ideal.
A kind of air blower, which is characterized in that the motor field frame and blower casing one group of motor as described above
It filling and is formed with air-supply access, impeller and the armature spindle for extending to above-mentioned blower casing integrally assemble, in above-mentioned air blower,
The vibration of motor field frame is difficult to be transferred to blower casing, therefore can realize mute.
It is capable of providing a kind of motor, above-mentioned motor is by that in the stator being assembled in motor case body and can rotate
Ground is supported on the rotor setting vibration-proof structure of said stator, to make the vibration of motor be difficult to be transferred to motor field frame.
Furthermore it is possible to provide, a kind of motor field frame is difficult to happen vibration, vibration is difficult to be transferred to blower casing and energy
Realize the air blower of mute.
Description of the drawings
Fig. 1 is the sectional view of motor.
Fig. 2 is the sectional view of air blower.
Specific implementation mode
Hereinafter, being illustrated to the motor of the present invention and an embodiment of air blower with reference to attached drawing.First, with reference to figure
The schematic construction of 1 pair of motor illustrates.Motor uses DC brushless motors, in the present embodiment, using inner-rotor type
Motor.
As shown in Figure 1, motor field frame 1 is to combine the first motor field frame 1a with the second motor field frame 1b, and will
Bolt (not shown) is chimeric with screw hole 1c, 1d screw thread of connection and integrally assembles.As motor field frame 1, (no using SUS
Become rusty steel), aluminum material etc..
Stator 2 is assembled in motor field frame 1.Stator 2 includes：Stator core 2a；The insulator that its both ends of the surface is covered
2b；And the coil 2c of magnet wire is wound with across insulator 2b around the tooth 2e of pole.Stator core 2a uses are by multiple electricity
Magnet steel board stacking and rivet and the laminate core that is formed.Stator core 2a is from cricoid iron core supporting part 2d towards radially inner side shape
At there is multiple pole tooth 2e.Stator core 2a by elastic component 3 be located in iron core supporting part 2d peripheral surface and with the second motor
The internal face of shell 1b is integrally fixed.As elastic component 3, rubber sheet, elastomer resin etc. are used.
Thereby, the vibration between stator 2 and rotor 6 can be made to be difficult to be transferred to motor field frame 1.
In addition, in the centre bore 2f that the pole tooth 2e for being based in the radially inner side of stator core 2a is surrounded, it is logical from both ends
It crosses and is pressed into or is adhesively fixed with a pair of bear box 4a, 4b for being formed as tubular.Bear box 4a, 4b use nonmagnetic material metal
Material (such as aluminium, nonmagnetic material stainless steel etc.), due to being the flux interaction face for being pressed into each pole tooth 2e, it is therefore desirable to the amount of will be pressed into
It is adjusted to required minimum.If being hindered relative to the intrusion of stator core 2a this is because increasing bear box 4a, 4b
The magnetic flux in the flux interaction face of pole tooth 2e is resulted from, then may will produce eddy current to make the performance of motor decline.In axis
In the bore for holding shell 4a, 4b, respectively inserted with bearing 5a, 5b (ball bearing), Internal and external cycle is adhesively secured.
Via bearing 5a, the 5b being inserted in each bear box 4a, 4b, the armature spindle 7 of rotor 6, which is pivotally supported into, to be revolved
Turn.Between bear box 4a and bearing 5a, it is folded with wave washer 8a (elastic component).It thereby, can be by being revolved to high speed
Bearing 5a, the 5b turned applies precompressed to increase the service life.
Alternatively, it is also possible to replace wave washer 8a with flat spring, disk spring etc., but using small-sized under high speed rotation
During the CPAP of ball bearing is used, compared with wave washer 8a, helical spring 8b (with reference to Fig. 2) is compressed into simultaneously sandwiched from natural length
The deviation of precompressed that is applied of method it is smaller, therefore steadily can apply load to axial, be ideal.
It is concentrically assembled with rotor magnet 9 in armature spindle 7.Armature spindle 7 is inserted in the axis with bear box 4a, 4b assembling
5a, 5b are held, and the pole tooth 2e of rotor magnet 9 and stator core 2a is oppositely disposed to be assembled.In rotor magnet 9 and bearing
Between 5a, 5b, it is equipped with spacer 10a, 10b.
In addition, one end of armature spindle 7 is extended from the first motor field frame 1a to outside, become outlet side.In armature spindle 7
The other end of second sides motor field frame 1b, is integrally assembled with sensor magnet 11 and balancer 12.Sensor magnet 11 is pair
The component that rotor magnetic pole position is detected is magnetized with position phase in the circumferential with rotor magnet 9.Balancer 12 is used as sensing
The support yoke of device magnet 11, or the taring as aftermentioned impeller correct material.
It is supported with motor base plate 13 in insulator 2b, above-mentioned motor base plate 13 is equipped with motor drive circuit.In electricity
Motivation substrate 13 is connected with the lead-out wire drawn from coil 2c.In addition, in motor base plate 13, phase with sensor magnet 11
On opposite, it is equipped with magnetic-pole detection sensor 14 (Hall IC etc.).Using magnetic-pole detection sensor 14 to the magnetic of sensor magnet 11
Pole position is detected, to be detected to the rotation position of rotor magnet 9, to be cut to the energization direction towards coil 2c
It changes.
As described above, stator core 2a is integrally assembled in the second motor field frame 1b's along radial direction via elastic component 3
Armature spindle 7 is integrally assembled in bear box 4a by internal face via bearing 5a, between bearing 5a and bear box 4a, edge
It axially via wave washer 8a (elastic component), rotor 6, which is pivotally supported into, to be rotated.
According to above structure, stator core 2a, bearing 5a and bear box 4a are integrally fixed, and elastic component 3 is sandwiched
And it is assembled between stator core 2a and the second motor field frame 1b.Therefore, by the stator being assembled in motor field frame 1
2 are arranged vibration-proof structure with the rotor 6 that can be rotatably supported on said stator, so as to make the vibration of motor be difficult to be transferred to
Motor field frame 1.
Fig. 2 expressions include the topology example of the air blower 15 of motor M identical with Fig. 1.Due to the inside of motor M
Structure is identical as Fig. 1, therefore is illustrated centered on different structures.It is assumed that air blower 15 is the air blower of CPAP.
In motor field frame 16 (the first motor field frame 16a and the second motor field frame 16b), motor M is contained.
In addition, in the blower room 20 surrounded by the first motor field frame 16a and blower casing 17, impeller 18 is contained.In electricity
The peripheral side of motivation shell 16 (the first motor field frame 16a and the second motor field frame 16b) and blower casing 17, difference shape
At the groove for having bending, above-mentioned motor field frame 16 and blower casing 17 are combined, to form cricoid air-supply access 19.
The central portion of blower casing 17 is formed with fluid to the suction inlet 17a axially sucked, and fluid is circumferentially added by impeller 18
It presses and is discharged after the air-supply flowing of access 19.
Elastic component 3 is located in the peripheral surface and the second motor field frame 16b of iron core supporting part 2d by stator core 2a
Between internal face, it is sandwiched between the second motor field frame 16b both ends of the surface opposite with the first motor field frame 16a and integrated group
Dress.Thereby, the vibration between stator 2 and rotor 6 can be made to be difficult to be transferred to motor field frame 16.
In addition, helical spring 8b (elastic component) is located in bear box 4a and axis with the state compressed from natural length
It holds between 5a.Thereby, high-speed rotating bearing 5a, 5b can be applied stable precompressed (deviation of the precompressed of application is smaller) with
Increase the service life.
Therefore, by the stator 2 being assembled in motor field frame 16 and turn that can be rotatably supported on said stator 2
Vibration-proof structure is arranged in son 6, to make the vibration of motor M be difficult to be transferred to motor field frame 16.
Impeller 18 is assembled in armature spindle 7 that is extended outward from the first motor field frame 16a and entering 20 side of blower room
One end.In addition, the other end of the armature spindle 7 in the second motor field frame 16b, is integrally assembled with 11 peace of sensor magnet
Weighing apparatus 12.Balancer 12 has the function of the counterweight as the support yoke of sensor magnet 11 and as impeller 18.
If starting motor M, the impeller 18 of air blower 15 rotates, using the rotation of above-mentioned impeller 18, in blower casing
It flows and is pressurized around air-supply access 19 from suction inlet 17a to the fluid axially sucked in body 17, utilize outlet (not shown)
Compressed air is sent out.Vibration can be made difficult since the vibration of motor field frame 16 can be reduced according to above structure
To be transferred to blower casing 17 and realize mute.
In above-described embodiment, be illustrated using inner-rotor type motor, but as long as stator core along radial direction across
Elastic component is integrally assembled in the outside wall surface of motor field frame (bear box), then is also applied for outer rotor type motor.
Claims (3)
1. a kind of motor, including：
Motor field frame；
The stator core of stator, the stator is integrally assembled in the motor case body；
Bear box, the bear box concentrically configures and is integrally assembled in the centre bore of the stator core, and is formed
For tubular；And
Rotor, the bearing that the armature spindle of the rotor is inserted into the bear box are pivotally supported into and can rotate,
It is characterized in that,
Stator core one along radial sandwiched elastic member between the stator core and the motor field frame
Assembling, the bear box are integrally assembled in the centre bore surrounded by pole tooth, the pole from the axial both ends of the stator core
The radially inner side of tooth towards the stator core projects.
2. motor as described in claim 1, which is characterized in that
Axially sandwiched and elastic member is assembled between the bear box and the bearing.
3. a kind of air blower, which is characterized in that
The motor field frame of motor described in claim 1 and blower casing are integrally assembled and are formed with air-supply access,
Impeller is integrally assembled in the extended armature spindle to the blower casing.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2017-018694 | 2017-02-03 | ||
| JP2017018694A JP6783679B2 (en) | 2017-02-03 | 2017-02-03 | Motor and blower |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108390499A true CN108390499A (en) | 2018-08-10 |
| CN108390499B CN108390499B (en) | 2022-04-15 |
Family
ID=63039167
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810095535.XA Active CN108390499B (en) | 2017-02-03 | 2018-01-31 | Motor and blower |
Country Status (3)
| Country | Link |
|---|---|
| US (1) | US20180223874A1 (en) |
| JP (1) | JP6783679B2 (en) |
| CN (1) | CN108390499B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10864042B2 (en) | 2018-02-20 | 2020-12-15 | Koninklijke Philips N.V. | Optical assembly for laser generator |
| JPWO2020050242A1 (en) * | 2018-09-03 | 2021-08-30 | 日本電産シンポ株式会社 | Drive device |
| JP6960004B2 (en) * | 2020-02-18 | 2021-11-05 | シナノケンシ株式会社 | Blower |
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- 2017-02-03 JP JP2017018694A patent/JP6783679B2/en active Active
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- 2018-01-05 US US15/863,173 patent/US20180223874A1/en not_active Abandoned
- 2018-01-31 CN CN201810095535.XA patent/CN108390499B/en active Active
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| CN104414100A (en) * | 2013-08-30 | 2015-03-18 | 信浓绢糸株式会社 | Blower |
| CN204145162U (en) * | 2013-12-26 | 2015-02-04 | 日本电产高科电机株式会社 | Motor |
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Also Published As
| Publication number | Publication date |
|---|---|
| US20180223874A1 (en) | 2018-08-09 |
| JP6783679B2 (en) | 2020-11-11 |
| JP2018126034A (en) | 2018-08-09 |
| CN108390499B (en) | 2022-04-15 |
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