CN110277874A - Variable magnetic field rotating electric machine and the vehicle for having the variable magnetic field rotating electric machine - Google Patents
Variable magnetic field rotating electric machine and the vehicle for having the variable magnetic field rotating electric machine Download PDFInfo
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- CN110277874A CN110277874A CN201910202073.1A CN201910202073A CN110277874A CN 110277874 A CN110277874 A CN 110277874A CN 201910202073 A CN201910202073 A CN 201910202073A CN 110277874 A CN110277874 A CN 110277874A
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- magnetic field
- cylinder chamber
- electric machine
- rotating electric
- working oil
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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
- H02K7/10—Structural association with clutches, brakes, gears, pulleys or mechanical starters
- H02K7/12—Structural association with clutches, brakes, gears, pulleys or mechanical starters with auxiliary limited movement of stators, rotors or core parts, e.g. rotors axially movable for the purpose of clutching or braking
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/64—Electric machine technologies in electromobility
Abstract
The present invention provides a kind of variable magnetic field rotating electric machine that can be easily adjusted magnetic field by simple structure and realize miniaturization and the vehicle for having the variable magnetic field rotating electric machine.Movable core displacement mechanism (20) includes cylinder chamber (46a, 46b), corresponding with the rotation speed of rotor (16) and accumulate working oil；Piston component (52), is arranged to be displaced along cylinder chamber；And valve system (21), it can switch over the discharge and accumulation for being supplied to the indoor working oil of cylinder, valve system (21) has slide valve (82), the slide valve (82) can be slidably received within valve and keep in room (80), by keeping being displaced slide valve (82) and piston component (52) along the axial direction of axis (18) and the increase and decrease of burden of working oil in room (80) is corresponding with cylinder chamber and valve, so that movable core (40) be made to follow piston component (52) and be displaced along the axial direction of axis (18).
Description
Technical field
The present invention relates to variable magnetic field rotating electric machine and has the vehicle of the variable magnetic field rotating electric machine.
Background technique
In general, the torque when increase magnet interlinkage flux makes low speed rotation is close in the case where rotating electric machine
When degree increases, when rotating at high speed, iron loss, low-intensity magnetic field copper loss be will increase.On the other hand, it is known to a kind of variable magnetic field electric rotating
Machine can be adjusted magnetic field, (such as turn so as to obtain rotating electric machine characteristic appropriate corresponding with behaviour in service
Square, output etc.).
For example, Patent Document 1 discloses pass through wire type traction device for stator phase about variable magnetic field rotating electric machine
For rotor along the structure axially pulled out.As a result, in patent document 1, magnet interlinkage flux can be made to reduce and press down iron loss
It is made lower.
Citation
Patent document
Patent document 1: Japanese Unexamined Patent Publication 2010-57209 bulletin
Subject to be solved by the invention
However, in variable magnetic field rotating electric machine disclosed in patent document 1, due to using stator along axially pulling out
Wire type traction device adjusts magnetic field, therefore becomes complicated there are structure and lead to the unfavorable condition of the enlargement of rotating electric machine.
Summary of the invention
The present invention proposes that its purpose is to provide one kind to be easy to adjust by simple structure in view of the above problems
Whole magnetic field and the variable magnetic field rotating electric machine of realization miniaturization and the vehicle for having the variable magnetic field rotating electric machine.
Solution for solving the problem
To achieve the goals above, the present invention relates to a kind of variable magnetic field rotating electric machines, have and are arranged to axis
Axis be rotary shaft and the rotor that integrally rotates, and movable core is provided on the rotor, which is characterized in that described
Variable magnetic field rotating electric machine has displacement mechanism, which carry out the movable core along the axial direction of the rotary shaft
Displacement, institute's displacement mechanism has: cylinder chamber, corresponding with the rotation speed of the rotor and accumulate working oil；Piston component,
Link with the one end axially of the movable core, and is arranged to be displaced along the cylinder chamber；Seal structure
Part is set to the piston component；Cylinder portion comprising the piston component, the cylinder chamber and the containment member；And valve
Mechanism can switch over the discharge and accumulation for being supplied to the indoor working oil of the cylinder, and the valve system includes valve
Core can be slidably received within valve and keep indoor；Valve forcing unit is configured at one end axially of the spool
Portion, and the spool is exerted a force towards another side；And working oil pressure-bearing surface, be set to the spool axially
The other end makes the spool and increase and decrease of burden of indoor working oil is corresponding by keeping with the cylinder chamber and the valve
And the piston component is displaced along the axial direction of the rotary shaft, so that the movable core be made to follow the piston component
And the axial direction along the rotary shaft is displaced.
It should be noted that being somebody's turn to do " working oil " is to have the lubricating oil with lubricating action and the refrigeration with cooling effect
The fluid of the effect of this both sides of agent.
Invention effect
In the present invention, the variable magnetic field that can be easily adjusted magnetic field by simple structure and realize miniaturization can be obtained
Rotating electric machine and the vehicle for having the variable magnetic field rotating electric machine.
Detailed description of the invention
Fig. 1 is the longitudinal sectional view of the general structure of the variable magnetic field rotating electric machine of embodiments of the present invention.
Fig. 2 is the transverse sectional view of variable magnetic field rotating electric machine shown in FIG. 1.
Fig. 3 is the longitudinal sectional view axially for constituting the slide valve of valve system shown in FIG. 1 and the edge for indicating slide valve
The left and right side view of an axial end face and other end.
Fig. 4 is to indicate movable core displacement mechanism and valve system in the low speed rotation of the rotor of variable magnetic field rotating electric machine
Movement explanatory diagram.
Fig. 5 is to indicate movable core displacement mechanism and valve system in the high speed rotation of the rotor of variable magnetic field rotating electric machine
Movement explanatory diagram.
Fig. 6 is the partial sectional view for indicating the variation of working oil path.
Symbol description:
10 variable magnetic field rotating electric machines
16 rotors
18 axis
20 movable core displacement mechanisms (displacement mechanism)
21 valve systems
24 stator cores
28 coil ends
40 movable cores
46,46a, 46b cylinder chamber
52 piston components
58 piston seals (containment member)
70 cylinder portions
80 valves keep room
82 slide valves (spool)
84 helical springs (valve forcing unit)
90 working oil pressure-bearing surfaces
The axis (rotary shaft) of A axis
Specific embodiment
Then, attached drawing is suitably referred to, detailed description of embodiments of the present invention.
Fig. 1 is the longitudinal sectional view of the general structure of the variable magnetic field rotating electric machine of embodiments of the present invention, and Fig. 2 is figure
The transverse sectional view of variable magnetic field rotating electric machine shown in 1.
As shown in Figure 1, the variable magnetic field rotating electric machine 10 (hereinafter simply referred to as rotating electric machine 10) of embodiments of the present invention
For example, it is equipped on the traveling motor of the vehicles such as hybrid motor vehicle, electric motor vehicle.The rotating electric machine 10 has shell
12, stator 14, rotor 16, axis (armature spindle) 18, movable core displacement mechanism (displacement mechanism) 20 and valve system 21.
12 housing stator 14 of shell, rotor 16, movable core displacement mechanism 20 and valve system 21, and via being assemblied in shell
One group of bearing 22a, 22b of body 12 and be pivotally supported as that can rotate.
As shown in Fig. 2, multiphase (such as U phase, V phase, W that stator 14 has stator core 24, is assemblied in stator core 24
Phase) coil 26 and coil end 28 (referring to Fig.1).Stator 14 is flowed in coil 26 by electric current generates magnetic field.It is fixed
Sub- iron core 24 is formed as the cylindrical shape extended along axis direction.Stator core 24 for example by by electromagnetic steel plate in the axial direction
Multiple are laminated and constitutes.
In stator core 24, the coil slot 30 (referring to Fig. 2) inserted with coil 26 is circumferentially set side by side.The coil
26 for example by being inserted into the multiple conducting line segments being made of flat wire in the coil slot 30 of stator core 24, and from stator iron
Part outstanding is linked using sectional coil and is constituted the heart 24 in the axial direction.
Rotor 16 is constituted with being embedded to form of magnets.Rotor 16 configures the radially inner side in stator 14.Rotor 16 has rotor
Iron core 32, embedded (assembly) in rotor core 32 permanent magnet 34 and respectively with an end face of rotor core 32 and another
End face a pair of end plate 36a, 36b arranged opposite (referring to Fig.1).
Rotor core 32 is made of the cylindrical shape similarly extended in the axial direction, and the inner peripheral surface pair with stator core 24
Set configuration.Rotor core 32 is for example constituted and multiple are laminated in the axial direction in electromagnetic steel plate.
Axis 18 is fixed on rotor core inserted with axis 18, such as by indentation etc. in the radially inner side of rotor core 32
32 central part.Axis 18 and rotor core 32 are respectively arranged to be rotary shaft (rotation with the axis A (referring to Fig.1) of axis 18
Turn center) and integrally rotate.
In addition, being separately provided for assembly permanent magnet 34 in defined circumferential angular regions in rotor core 32
Magnet department of assembly 38 (referring to Fig. 2).Multiple magnet departments of assembly 38 have rule circumferentially in the peripheral part of rotor core 32
Fixed separating distance and equally spaced configure.When from axis direction visual confirmation, magnet department of assembly 38 be formed as by with it is radial just
Rectangular shape of the direction of friendship as longitudinal direction.
Permanent magnet 34 is inserted into magnet department of assembly 38, and such as by being fixed on rotor core resin, bonding agent
32。
Multiple movable cores 40 of mode configured separate circumferentially equiangularly are provided in rotor core 32.It is more
A movable core 40 is respectively arranged between adjacent pair magnet department of assembly 38 in the circumferential.
By the way that the configuration of movable core 40 in the storage slot 42 of rotor core 32, is existed so that movable core 40 be configured
Between circumferentially adjacent and different polarity a pair of permanent magnets 34.Movable core 40 with storage slot 42 it is corresponding and perpendicular to axis
Section constitution be generally elliptical shape.The movable core 40 is configured to via aftermentioned movable core displacement mechanism 20
And it is axially displaced in storage slot 42.
Each end plate 36a, 36b are formed by the circular plate of shape roughly the same with rotor core 32.End plate 36a, 36b by with
It is assemblied in the anti-falling piece of the permanent magnet 34 in the magnet department of assembly 38 of rotor core 32.In the middle heart of end plate 36a, 36b
At the roughly circular through hole having for the perforation of axis 18.
As shown in Figure 1, being formed with hole portion 44 in the peripheral part side of the end plate 36a of side, the hole when from axial visual confirmation
The diameter in portion 44 is bigger than movable core 40 and penetrates through end plate 36a.The hole portion 44 is formed as and movable core 40 in side view
Perpendicular to the section of axis, the i.e. corresponding shape of section generally elliptical shape.Movable core can be configured in hole portion 44 with retreating
40。
Movable core displacement mechanism 20 makes multiple movable cores 40 simultaneously or substantially simultaneously along rotary shaft (axis A)
Axial displacement, this multiple movable core 40 are circumferential equiangularly in peripheral part lateral edge when rotor core 32 is observed in side
Mode configured separate.
The movable core displacement mechanism 20 is configured in an end face of rotor core 32 from the end plate 36a of side towards edge
In the axial outside shell 12 outstanding of rotation.The shell 12 includes positioned at the outer diameter wall portion 48a in outside, positioned inside
Internal diameter wall portion 48b, the side of the side of outer diameter wall portion 48a and internal diameter wall portion 48b are linked side annular wall 48c, with
The end plate 36a of side opposed disk-shaped wall portion 48d and along between radial outer diameter wall portion 48a and internal diameter wall portion 48b
Position configuration intermediate wall 48e.
Outer diameter wall portion 48a is formed as cylindric along the outside diameter of rotor core 32.48b is than outer diameter wall portion for internal diameter wall portion
48a undergauge, and be formed as cylindric along the internal side diameter of rotor core 32.Outer diameter wall portion 48a and internal diameter wall portion 48b distinguishes shape
As the approximately axially parallel identical width dimensions with axis 18.Side annular wall 48c is by by the side of outer diameter wall portion 48a
The ring bodies being connected with the side of internal diameter wall portion 48b is formed, the side of outer diameter wall portion 48a and the side one of internal diameter wall portion 48b
Edge it is radial keep as defined in separating distance, constitute substantially in parallel on one side.
It is formed in section view by being located at the intermediate wall 48e of upside, positioned at the internal diameter wall portion 48b of downside and upper
Lower section is internal empty made of upwards surrounding the side annular wall 48c that intermediate wall 48e is connected with the unilateral side of internal diameter wall portion 48b
Between, i.e. cylinder chamber 46 (46a, 46b).The cylinder chamber 46 is configured to be divided into the cylinder chamber of side (side) by aftermentioned piston component 52
The cylinder chamber 46b of 46a and the other side (another party).It should be noted that in the cylinder chamber 46b of cylinder chamber 46a and the other side to side
When this both sides carries out general name together, referred to as " cylinder chamber 46 ".As described later, corresponding with the rotation speed of rotor 16 in cylinder chamber 46
And contain working oil.It is the lubricating oil having with lubricating action and there is cooling to make it should be noted that is somebody's turn to do " working oil "
The fluid of the effect of this both sides of refrigerant.
Storage is equipped with piston component 52 in cylinder chamber 46, which is configured to along cylinder chamber 46
It moves.The one end axially of the piston component 52 and movable core 40 links, and is configured to and 40 one of movable core
Ground displacement.The one end axially of piston component 52 and movable core 40 links.
The piston component 52 is included by the plate body of shape is constituted in the form of a substantially rectangular in side view piston main body；From piston
The linking part that prominent to 40 side of the movable core and one end axially with movable core 40 of main body links；And and piston
Main body is formed continuously and the sealing being located at than linking part and movable core 40 by the position of outside diameter is assembled portion 54.It needs to illustrate
, piston component 52 presets the (displacement of its path increment by the one group of retainer (not shown) being arranged in cylinder chamber 46
Amount).
Sealing is assembled portion 54 and is made of the ring bodies circumferentially extended roughly in parallel with the peripheral part of rotor 16.?
Sealing is assembled portion 54 and is formed with endless groove 56, which is made of section rectangular shape, and towards outer diameter wall portion
The interior wall opening of 48a.Piston seal (containment member) 58 is equipped in the endless groove 56.
In section view, the piston seal 58 and intermediate wall 48e and internal diameter wall portion 48b sliding contact and play for will
Cylinder chamber 46 is divided into the sealing function of the cylinder chamber 46a of side and the cylinder chamber 46b of the other side.The sealing being made of ring bodies is assembled
Portion 54 will circumferentially link configured with multiple each piston components 52 along the peripheral part of rotor 16 and it made to be connected.It is assemblied in
The piston seal 58 of endless groove 56 is located at the position that outside diameter is leaned on than linking part and movable core 40, and along the outer of rotor 16
Circumference configures substantially in parallel, and is annularly formed continuously.
With cylinder chamber 46 facing sealing be assembled the inner wall in portion 54 by accumulate in cylinder chamber 46 outside diameter working oil by
Pressure, and be applied with the pressure-bearing surface of the pressing force of working oil as in order to be displaced piston component 52 and function.
The disk-shaped wall portion 48d substantially orthogonal with internal diameter wall portion 48b is provided in the radially inner side of internal diameter wall portion 48b.?
The inner wall opposed with end plate 36a of the disk-shaped wall portion 48d is formed with multiple working oil paths 68, this multiple working oil path 68 with it is each
Cylinder chamber 46a, 46b is connected to and supplies working oil to each cylinder chamber 46a, 46b.Each working oil path 68 is configured to along radial in radiation
Extend to shape.
As shown in Figure 1, each working oil path 68 is along disk-shaped wall portion 48d, internal diameter wall portion 48b and side annular wall 48c
Continuously and extend.In section view, internal diameter wall portion 48b is provided with a pair of of supply port 69a, 69b, this pair of of supply port
69a, 69b are connected to each cylinder chamber 46a, 46b and supply working oil to each cylinder chamber 46a, 46b respectively.Supply port 69a is configured to
It can be connected to the cylinder chamber 46a of side.Supply port 69b is configured to be connected to the cylinder chamber 46b of the other side.In addition,
The outside diameter of side annular wall 48c is provided with supply port 71, the supply port 71 each working oil path 68 terminal to valve
Room 80 is kept to supply working oil.
It should be noted that constituting cylinder portion 70 by the piston component 52, cylinder chamber 46 and piston seal 58.The cylinder portion
Internal side diameter of 70 configurations in the coil end 28 of coil 26.
Valve system 21 switches over the discharge and accumulation of the working oil being supplied in each cylinder chamber 46a, 46b.The valve system
21 have the slide valve (spool) 82 and helical spring (valve forcing unit) 84 (referring to Fig.1) being accommodated in valve holding room 80.Valve is protected
The internal side diameter that room 80 is located at outer diameter wall portion 48a is held, and configures the outside diameter in cylinder chamber 46.
Fig. 3 is the longitudinal sectional view axially for constituting the slide valve of valve system shown in FIG. 1 and the edge for indicating slide valve
The left and right side view of an axial end face and other end.
Slide valve 82 is accommodated to be kept room 80 that can slide and is able to carry out displacement (referring to Fig.1) along valve.Such as Fig. 3 institute
Show, it is in generally cylindrical valve body 83 which, which has,.It is axially configured in order in the outer peripheral surface of the valve body 83
First shoulder 86a, the second shoulders 86b and third shoulders 86c.First shoulder 86a~third shoulders 86c has
Identical outer diameter.In addition, First shoulder 86a~third shoulders 86c outer diameter is formed as the guarantor for keeping room 80 with formation valve
The internal diameter for holding hole is roughly the same.
It is formed with annular recessed portion between the First shoulder 86a and the second shoulders 86b of valve body 83, passes through the ring-type
Recess portion is arranged the first small diameter portion 88a.Moreover, being formed between the second shoulders 86b and third shoulders 86c cyclic annular recessed
The second small diameter portion 88b is arranged by the annular recessed portion for portion.
Helical spring 84 is configured at the one end axially of slide valve 82 via recessed portion, and by slide valve 82 towards another
One end side (the side side annular wall 48c) presses (force) (referring to Fig.1).In the other end side axially of slide valve 82
(side opposite with the side of helical spring 84 is configured with) is provided with working oil pressure-bearing surface 90, and the working oil pressure-bearing surface 90 is by supplying
Being given to valve keeps the working oil in room 80 to press.The working oil pressure-bearing surface 90 is by having the circular step of annular convex 92 at center
Portion is constituted.
As shown in Figure 1, valve keep room 80 by by section view positioned at upside outer diameter wall portion 48a, in downside
Between wall portion 48e and the side annular wall that the unilateral side of outer diameter wall portion 48a and intermediate wall 48e are connected in the up-down direction
Inner space that 48c is surrounded is formed.In addition, be located at upside outer diameter wall portion 48a be provided with a pair of of discharge port 94a,
94b, this pair of of discharge port 94a, 94b keep the working oil in room 80 to keep being discharged outside room 80 to valve for valve is imported into.
It is formed with one group of communications ports 96a, 96b in intermediate wall 48e, this group of communications ports 96a, 96b make cylinder chamber 46
Room 80 is kept to be interconnected with valve.The sliding position of each communications ports 96a, the 96b and slide valve 82 will accordingly imported into cylinder chamber
Working oil in 46 keeps exporting in room 80 to valve.According to the positional relationship of slide valve 82, communications ports 96a and discharge port 94a
It is configured to connection (referring to aftermentioned Fig. 5).In addition, according to the positional relationship of slide valve 82, communications ports 96b and outlet side
Mouth 94b is configured to connection (referring to aftermentioned Fig. 4).
Disk-shaped wall portion 48d has inside diameter flange 72, which is located adjacent to the internal side diameter of axis 18, and along axis
18 it is axially projecting.In the resolver 74 of rotation angle of the inside diameter flange 72 configured with detection rotating electric machine 10.The resolver
74 parsings that there is the resolver stator for being fixed on 12 side of shell and indentation to be fixed on 18 side of axis and integrally rotate with axis 18
Device rotor.
The rotating electric machine 10 of present embodiment is substantially constituted as described above, next, saying to its function and effect
It is bright.
Fig. 4 is to indicate movable core displacement mechanism and valve system in the low speed rotation of the rotor of variable magnetic field rotating electric machine
Movement explanatory diagram, Fig. 5 is to indicate the movable core displacement mechanism in the high speed rotation of the rotor of variable magnetic field rotating electric machine
And the explanatory diagram of the movement of valve system.It should be noted that slide valve 82 is in its initial position, in the spring force of helical spring 84
Under the action of the state (reference Fig. 4) that is abutted with side annular wall 48c of the annular convex 92 in end side.
For example, feeding working oil (lubricating oil, refrigerant) through not shown pump to rotating electric machine 10.The working oil via
Working oil path 68 and supplied from 18 side of axis into cylinder chamber 46.
When the rotor 16 of rotating electric machine 10 rotates, piston component 52 rotates together with rotor core 32, to piston component
52 are applied with centrifugal force.As shown in figure 4, when the rotor 16 of rotating electric machine 10 becomes defined low rotation (low speed rotation), work
Make oil to be only directed in the cylinder chamber 46a of side via working oil path 68 and supply port 69a.It is directed to the cylinder chamber of side
Working oil in 46a only accumulates in the outside diameter of the cylinder chamber 46a of side by the effect of centrifugal force.Accumulate in the cylinder chamber of side
The working oil of the outside diameter of 46a presses the side cylinder chamber 46b of piston component 52 towards the other side.As a result, only in side
Cylinder chamber 46a generates centrifugal pressure.Piston component 52 is under the action of the lower centrifugal pressure of working oil to arrow B direction position
It moves.
In the low speed rotation of the rotor 16 of rotating electric machine 10, slide valve 82 is in the state of initial position (referring to Fig. 4).?
The initial position of slide valve 82, the communications ports 96a and discharge port 94a of side are respectively at by the second shoulders 86b
The non-interconnected state being blocked.In addition, the communications ports 96b and discharge port 94b of the other side divide via the second small diameter portion 88b
Other places are in connected state.The cylinder of side is accumulated in from the working oil in the cylinder chamber 46a that supply port 69a is supplied to side as a result,
In the 46a of room, also, generates lower centrifugal pressure and press piston component 52 to the direction arrow B.In contrast, from supply
Port 69b is supplied to the working oil in the cylinder chamber 46b of the other side via the communications ports 96b and discharge port for being in connected state
94b and to outside be discharged.
As shown in figure 5, when the rotor 16 of rotating electric machine 10 becomes defined high rotation (high speed rotation), via supply side
Mouthful 69b and only import working oil into the cylinder chamber 46b of the other side.Work to the outside diameter for the cylinder chamber 46b for accumulating in the other side
Oily (centrifugal hydraulic pressure) effect has centrifugal force, improves the pressure of working oil.By working oil (the higher centrifugation for improving pressure
It is hydraulic), piston component 52 is pressed towards the direction of small arrow shown in fig. 5.That is, the cylinder chamber 46b with the other side is facing
The inner wall of piston component 52 plays a role as the pressure-bearing surface for the pressing force (centrifugal hydraulic pressure) for being applied with working oil, by this
Pressing force (centrifugal hydraulic pressure) is displaced piston component 52 and movable core 40 integrally towards the direction arrow C.
In other words, another to accumulating in when the rotor 16 of rotating electric machine 10 becomes defined high rotation (high speed rotation)
The working oil of the outside diameter of the cylinder chamber 46b of side applies centrifugal force, pressurizes to working oil.It is adjoint to the plus-pressure of the working oil
The increase of centrifugal force and become larger.The pressure-bearing surface (inner wall 54a) to piston component 52 is generated by the working oil after the pressurization
The pressing force pressed is displaced piston component 52 along the direction arrow C (axial direction of rotary shaft).Link with piston component 52
Movable core 40 along with piston component 52 and be integrally displaced along the direction arrow C.
As a result, movable core 40 from configure rotor core 32 storage slot 42 in initial position, with work
Plug member 52 is integrally displaced towards the direction arrow C.It should be noted that defined high rotation (high speed rotation) example of rotor 16
It is preset such as size based on performance required by rotating electric machine 10, rotating electric machine 10 etc..
In the high speed rotation of the rotor 16 of rotating electric machine 10, kept in room 80 by importeding into valve via supply port 71
Working oil the pressure-bearing surface 90 of slide valve 82 is pressed.Slide valve 82 resist the spring force of helical spring 84 and from initial position court
It is displaced to the direction arrow D.The communications ports 96a and discharge port 94a of side are respectively via the first small diameter portion 88a as a result,
And it is in connected state.In addition, the communications ports 96b and discharge port 94b of the other side are located respectively by the second shoulders 86b
In the non-interconnected state being blocked.As a result, from the working oil product in the cylinder chamber 46b that supply port 69b is supplied to the other side
There are in the cylinder chamber 46b of the other side, and generates higher centrifugal pressure and piston component 52 is pressed and makes it to arrow C
Direction displacement.In contrast, from the working oil in the cylinder chamber 46a that supply port 69a is supplied to side via in connected state
Communications ports 96a and discharge port 94a and to outside be discharged.In the high speed rotation of the rotor 16 of rotating electric machine 10, only exist
The cylinder chamber 46b of the other side generates centrifugal pressure.Piston component 52 is by the higher centrifugal pressure of working oil to the direction arrow C
Displacement.
In this way, in the present embodiment, being added by centrifugal force to the working oil for the outside diameter for accumulating in cylinder chamber 46
Pressure, so as to generate the pressing that axially (direction arrow B or the direction arrow C) presses of the pressure-bearing surface of piston component 52
Power.As a result, in the present embodiment, it can make piston component 52 and movable core 40 integrally along the axial direction (arrow of rotary shaft
The head direction B or the direction arrow C) it is displaced.
It, can be by slide valve 82 to being supplied to the cylinder chamber 46a of side and the cylinder chamber of the other side moreover, in the present embodiment
The discharge and accumulation of working oil in 46b switch over.That is, when low speed rotation shown in Fig. 4, it can be in the cylinder chamber of side
Accumulate working oil in 46a and generate centrifugal hydraulic pressure, and the working oil in the cylinder chamber 46b of the other side can be discharged to outside.
On the other hand, when high speed rotation shown in Fig. 5, working oil can be accumulated in the cylinder chamber 46b of the other side and generates centrifugate
Pressure, and the working oil in the cylinder chamber 46a of side can be discharged to outside.As a result, in the present embodiment, such as it is logical
The valve system 21 that setting is made of slide valve 82 is crossed, so as to suitably control the opportunity for applying centrifugal hydraulic pressure.
That is, it is square proportional due to centrifugal hydraulic pressure and the revolving speed of rotor 16, such as obtaining required centrifugate
Before compressive load, piston component 52 (movable core 40) may be displaced in a free state.In addition, obtain it is required from
Before heart hydraulic load, exist and need the case where spending the time, or the higher rotation speed of rotor 16 may be needed.
In the present embodiment, it is acted on by the switching of slide valve 82, so that piston component 52 is carried out step by step
Displacement.In other words, the discharge and accumulation of working oil are switched over by slide valve 82, so as to from the cylinder chamber 46a in side
The lower centrifugal pressure of interior generation is cut to the higher centrifugal pressure generated in the cylinder chamber 46b of the other side step by step
It changes.As a result, in the present embodiment, can suitably avoid the piston component before obtaining required centrifugal hydraulic pressure load
The case where 52 (movable cores 40) are displaced.In addition, the switching effect by slide valve 82 is displaced piston component 52, from
Without the reset spring etc. to exert a force to piston component 52.As a result, in the present embodiment, components number can be cut down
And reduce manufacturing cost.
In addition, in the present embodiment, such as in the case where using highly viscous oil as working oil, it can be suitably
Inhibit the phenomenon that the centrifugal hydraulic pressure generated at low ambient temperatures becomes excessive.
As a result, in the present embodiment, by the way that the valve machine including movable core displacement mechanism 20 and slide valve 82 is arranged
Structure 21, thus the available rotating electric machine 10 that can be easily adjusted magnetic field by simple structure and realize miniaturization.
In addition, in the present embodiment, coil end 28 of the configuration of cylinder portion 70 with piston component 52 etc. in coil 26
Internal side diameter.As a result, in the present embodiment, it can be realized the effective use in space, and can be realized space saving.
Fig. 6 is the partial sectional view for indicating the variation of working oil path.It should be noted that identical with Fig. 4 and Fig. 5
Constituent element marks same reference marks, and description is omitted.
In variation shown in Fig. 6, multiple working oil discharge ports 98 are set, and from the working oil discharge port 98 to
Outside discharge working oil.It is necessary thereby, it is possible to suitably avoid accumulating in the cylinder chamber 46a of side and the cylinder chamber 46b of the other side
The case where above working oil.In addition, the working oil being discharged from multiple working oil discharge ports 98 is for example being configured at portion nearby
The winding (not shown) of position, gear etc. lubrication, it is cooling in use.
By the way that such rotating electric machine 10 is equipped on vehicle (not shown), so that available can pass through simple structure
It is easily adjusted magnetic field and realizes the vehicle of miniaturization.
It should be noted that, as displacement mechanism, instantiating makes movable iron in present embodiment and other embodiments
The heart 40 is along the movable core displacement mechanism 20 of the axial displacement of rotary shaft, and but not limited to this.For example, as displacement machine
Structure can also use permanent magnet displacement mechanism, make permanent magnet 34 along rotation by using the permanent magnet displacement mechanism
The axial displacement of shaft.
Claims (4)
1. a kind of variable magnetic field rotating electric machine has be arranged to integrally rotate using the axis of axis as rotary shaft to turn
Son, and movable core is provided on the rotor, which is characterized in that
The variable magnetic field rotating electric machine has displacement mechanism, which makes the movable core along the rotary shaft
Axially it is displaced,
Institute's displacement mechanism has:
Cylinder chamber, it is corresponding with the rotation speed of the rotor and accumulate working oil；
Piston component links with the one end axially of the movable core, and is arranged to along the cylinder chamber
It is displaced；
Containment member is set to the piston component；
Cylinder portion comprising the piston component, the cylinder chamber and the containment member；And
Valve system can switch over the discharge and accumulation for being supplied to the indoor working oil of the cylinder,
The valve system includes
Spool can be slidably received within valve and keep indoor；
Valve forcing unit is configured at the one end axially of the spool, and the spool is applied towards another side
Power；And
Working oil pressure-bearing surface is set to the other end axially of the spool,
By keeping making the spool and institute and the increase and decrease of burden of indoor working oil is corresponding with the cylinder chamber and the valve
The axial direction that piston component is stated along the rotary shaft is displaced, so that the movable core be made to follow the piston component and edge
The axial direction of the rotary shaft is displaced.
2. variable magnetic field rotating electric machine according to claim 1, which is characterized in that
The variable magnetic field rotating electric machine has stator core and coil end,
The cylinder portion is configured at the internal side diameter of the coil end.
3. variable magnetic field rotating electric machine according to claim 1 or 2, which is characterized in that
The spool is made of slide valve,
The discharge and accumulation of the working oil for being supplied to the cylinder chamber are switched over by the slide valve, so as to by described
The centrifugation generated in the cylinder chamber of the centrifugal pressure and another party that are generated in the cylinder chamber for the side that piston component is partitioned into
Pressure switches over.
4. a kind of vehicle, which is characterized in that
The vehicle has variable magnetic field rotating electric machine according to any one of claims 1 to 3.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2018-048988 | 2018-03-16 | ||
| JP2018048988A JP2019161971A (en) | 2018-03-16 | 2018-03-16 | Variable field dynamo-electric machine and vehicle including the same |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110277874A true CN110277874A (en) | 2019-09-24 |
| CN110277874B CN110277874B (en) | 2021-06-29 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910202073.1A Active CN110277874B (en) | 2018-03-16 | 2019-03-15 | Variable magnetic field rotating electrical machine and vehicle provided with same |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP2019161971A (en) |
| CN (1) | CN110277874B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111030368A (en) * | 2019-12-27 | 2020-04-17 | 齐齐哈尔大学 | Rotating device with driving mechanism and deformation method |
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| CN101098092A (en) * | 2006-06-27 | 2008-01-02 | 本田技研工业株式会社 | Motor |
| CN102403818A (en) * | 2010-09-16 | 2012-04-04 | 爱信精机株式会社 | Rotary electrical apparatus |
| US20130160442A1 (en) * | 2011-12-26 | 2013-06-27 | Johnson Electric S.A. | Electro-hydraulic actuator with an integrated brake |
| CN103944312A (en) * | 2014-05-06 | 2014-07-23 | 华中科技大学 | Squirrel cage type motor allowing adjustment of air gap between stator and rotor |
| CN106026467A (en) * | 2016-08-04 | 2016-10-12 | 上海电机学院 | Permanent-magnet synchronous motor and rotor thereof |
| CN106253617A (en) * | 2015-06-15 | 2016-12-21 | 现代自动车株式会社 | Electric motor structure for variable counter electromotive force |
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2018
- 2018-03-16 JP JP2018048988A patent/JP2019161971A/en active Pending
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2019
- 2019-03-15 CN CN201910202073.1A patent/CN110277874B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101098092A (en) * | 2006-06-27 | 2008-01-02 | 本田技研工业株式会社 | Motor |
| CN102403818A (en) * | 2010-09-16 | 2012-04-04 | 爱信精机株式会社 | Rotary electrical apparatus |
| US20130160442A1 (en) * | 2011-12-26 | 2013-06-27 | Johnson Electric S.A. | Electro-hydraulic actuator with an integrated brake |
| CN103944312A (en) * | 2014-05-06 | 2014-07-23 | 华中科技大学 | Squirrel cage type motor allowing adjustment of air gap between stator and rotor |
| CN106253617A (en) * | 2015-06-15 | 2016-12-21 | 现代自动车株式会社 | Electric motor structure for variable counter electromotive force |
| CN106026467A (en) * | 2016-08-04 | 2016-10-12 | 上海电机学院 | Permanent-magnet synchronous motor and rotor thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111030368A (en) * | 2019-12-27 | 2020-04-17 | 齐齐哈尔大学 | Rotating device with driving mechanism and deformation method |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2019161971A (en) | 2019-09-19 |
| CN110277874B (en) | 2021-06-29 |
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