CN106487140A - Electric rotating machine - Google Patents

Abstract

A kind of electric rotating machine is provided, can prevent from making the chimeric disengaging of insulator due to centrifugal force when rotor rotates.In internal rotor (300), insulator (340) is provided with to each rotor tooth (302), insulator (340) is wound with by with the interlinking of magnetic flux being produced by armature coil (104) and cause faradic induction coil (I) and due to faradic energising and produce boundary's magnetic coil (F) in magnetic field.The insulator maintaining part (345) of insulator (340) has the recess (345A) forming the groove (347) of ring-type in the case that insulator (340) is installed on multiple rotor tooths (302) in rotary shaft (1C) side, and the pad (312,314) with the protuberance (312A, 314A) chimeric with the groove (347) of this ring-type is fixing.

Description

Electric rotating machine

Technical field

The present invention relates to a kind of electric rotating machine, possess：Stator, it has the armature coil producing magnetic flux by energising； And rotor, the multiple salient pole portions being wherein wound with the coil interlinking with magnetic flux are arranged side by side in the circumferential.

Background technology

The electric rotating machine being equipped on motor vehicle driven by mixed power etc. adopts with lower rotating electrical machine, possesses：Stator, it has by logical Electricity and produce the armature coil of magnetic flux；And rotor, the multiple salient pole portions being wherein wound with the coil interlinking with magnetic flux are in circumference Upper arranged side by side.

In the past it is known that patent documentation 1 describes this electric rotating machine.It is so-called that the electric rotating machine that patent documentation 1 is recorded adopts The coil installation method of box line axle mode, the insulator being formed on the outer periphery armature coil is embedded in the tooth of stator, thus will Insulator is fixed on the tooth of stator.Specifically, in the existing electric rotating machine that patent documentation 1 is recorded, make located at insulator The claw of yoke side be embedded in the concave shape groove of yoke, thus armature coil and insulator are fixed on stator.

Prior art literature

Patent documentation

Patent documentation 1：WO2012/011168 publication

Content of the invention

Problems to be solved by the invention

However, in the existing electric rotating machine that patent documentation 1 is recorded, being that insulator is installed on non-rotary stator Tooth, it is possible to can be due to centrifugal force when rotor rotates in the case of being installed to the tooth of rotor of rotation by this insulator Lead to the chimeric disengaging of insulator.

Therefore, it is an object of the invention to provide can prevent from leading to the chimeric of insulator due to centrifugal force when rotor rotates The electric rotating machine departing from.

For solution to problem

One mode of the invention of the electric rotating machine solving the above problems is a kind of electric rotating machine, possesses：Stator, it has The armature coil of magnetic flux is produced during energising；And rotor, it has the multiple salient pole portions being neck and neck in circumference, above-mentioned salient pole portion It is wound with the coil interlinking with above-mentioned magnetic flux, above-mentioned electric rotating machine is characterised by, above-mentioned rotor is formed as being wound with above-mentioned line The insulator of circle is installed on each above-mentioned salient pole portion, in the case that multiple above-mentioned multiple salient pole portions are provided with above-mentioned insulator, Above-mentioned insulator is formed with the 1st stage portion of ring-type in rotation shaft side, and above-mentioned insulator is fixed by retaining ring, above-mentioned holding Ring has 2nd stage portion chimeric with above-mentioned 1st stage portion.

Invention effect

According to the present invention, can prevent the centrifugal force during rotation due to rotor from making the chimeric disengaging of insulator.

Brief description

Fig. 1 is the figure of the electric rotating machine illustrating an embodiment of the invention, is to represent 1/2 model that its summary is constituted The sectional view with rotating shaft direct cross.

Fig. 2 is the line graph of the connection closed circuit of the diode illustrating to be arranged at internal rotor.

Fig. 3 is the sectional view parallel with rotary shaft of the electric rotating machine of an embodiment of the invention.

Fig. 4 is the exploded perspective view of the outer rotor of the electric rotating machine illustrating an embodiment of the invention.

Fig. 5 is the exploded perspective view of the internal rotor of the electric rotating machine illustrating an embodiment of the invention.

Fig. 6 is the figure of the electric rotating machine illustrating an embodiment of the invention, is the other end side from axis direction See the front view of the rotor windings of internal rotor.

Fig. 7 is the figure of the electric rotating machine illustrating an embodiment of the invention, is configured with the insulation after rotor windings The axonometric chart of body.

Fig. 8 is the figure of the electric rotating machine illustrating an embodiment of the invention, is the insulator before configuration rotor windings Axonometric chart.

Fig. 9 is the electric rotating machine figure illustrating an embodiment of the invention, is the rotation with the rotor windings of internal rotor Sectional view in the orthogonal section of axle.

Figure 10 is the figure of the electric rotating machine illustrating an embodiment of the invention, is that the insulator illustrating insulator keeps Portion and the axonometric chart of recess.

Figure 11 is the figure of the electric rotating machine illustrating an embodiment of the invention, is the solid illustrating pad and protuberance Figure.

Figure 12 is the parallel sectional view of the rotary shaft with internal rotor of the electric rotating machine of an embodiment of the invention.

Description of reference numerals：

1：Electric rotating machine

1C：Rotary shaft

100：Stator

104：Armature coil

300：Internal rotor (rotor)

302：Rotor tooth (salient pole portion)

312、314：Pad (retaining ring)

312A、314A：Protuberance (the 2nd stage portion)

330：Rotor windings (coil)

340：Insulator

345A：Recess (the 1st stage portion)

347：Groove (step)

Specific embodiment

Hereinafter, with reference to the accompanying drawings of embodiments of the present invention.Fig. 1～Figure 12 is that an embodiment of the invention is described Electric rotating machine figure.

In FIG, electric rotating machine 1 is configured to the electric rotating machine of birotor form, possesses：Be formed as the stator of drum 100；The outer rotor 200 as the 2nd rotor located at the rotary shaft 1C side of this stator 100；And the rotation located at this outer rotor 200 The internal rotor 300 as the 1st rotor of rotating shaft 1C side.Outer rotor 200 and internal rotor 300 are supported respectively so as to rotary shaft 1C rotates against for center of rotation.Additionally, Fig. 1 shows the footpath direction sectional view of the 180 degree (1/2) in 360 degree of mechanical angle.Interior Rotor 300 constitutes the rotor in the present invention.

Stator 100 possesses stator core 101, in this stator core 101, is arranged with the circumferential towards axle center radially The multiple stator tooths 102 extending.This stator tooth 102 is so that inner peripheral surface 102a side is across the air gap G1 and outer rotor described later The mode that the outer peripheral face 201a of 200 magnetic circuit component 201 is relative is formed.

In this stator 100, it is accommodated with the W with three-phase alternating current using between the side 102b of stator tooth 102 as groove 103 The corresponding armature coil 104 of phase, V phase, U.Armature coil 104 is wound in stator tooth 102 by distribution winding.Armature coil 104 pass through energising produces magnetic flux.

Three-phase alternating current is provided to produce the rotating excitation field rotating in the circumferential this armature coil 104 in stator 100, Produced magnetic flux is made to interlink with outer rotor 200, internal rotor 300 thus carrying out to these outer rotors 200 and internal rotor 300 respectively Rotation driving.

Outer rotor 200 has：Magnetic circuit component 201 including soft-magnetic bodies such as the high steel of pcrmeability；And include PPS (polyphenylene sulfide) resin etc. does not make the non-magnetic member 202 of the nonmagnetic material that magnetic flux passes through.Magnetic circuit component 201 and non-magnetic member 202 extend in the axial direction.Additionally, axis direction represents the direction identical direction extending with rotary shaft 1C.

Magnetic circuit component 201 has：Pole piece portion 201A relative with non-magnetic member 202 in the circumferential；And non magnetic The stator side of component 202 and internal rotor side connect the bridge portion 201B of adjacent pole piece portion 201A.

Pole piece portion 201A and bridge portion 201B is formed one.Therefore, magnetic circuit component 201 constitute by pole piece portion 201A and The one iron core that bridge portion 201B forms as one.The magnetic circuit component 201 being integrally constituted iron core is in axle by multiple electromagnetic steel plates It is laminated on line direction.

Non-magnetic member 202 is located at the space being surrounded by pole piece portion 201A and bridge portion 201B.Therefore, in present embodiment In outer rotor 200, the pole piece portion 201A of soft-magnetic body and non-magnetic member 202 are alternately arranged in the circumferential.Magnetic is explained below Road component 201 and the detailed composition of non-magnetic member 202.

In outer rotor 200, the inner peripheral surface 102a of the outer peripheral face 201a of magnetic circuit component 201 and the stator tooth 102 of stator 100 Relatively, the inner peripheral surface 201b of magnetic circuit component 201 is relative with the outer peripheral face 302a of the rotor tooth 302 of internal rotor 300 described later.

This outer rotor 200 makes the magnetic flux producing in the armature coil 104 of stator 100 and interlinking efficiently pass through magnetic circuit structure The pole piece portion 201A of part 201, on the other hand, hinders passing through of this magnetic flux in non-magnetic member 202.Electricity in this stator 100 The magnetic flux producing in pivot coil 104 forms following magnetic loop：After the pole piece portion 201A of outer rotor 200, as described later, Interlink with the outer peripheral face 302a of the rotor tooth 302 of internal rotor 300, again by the pole piece portion 201A of outer rotor 200, thus returning Stator 100.

Now, outer rotor 200 rotates with respect to stator 100, therefore repeatedly switches the magnetic circuit component 201 making magnetic flux pass through The non-magnetic member 202 that pole piece portion 201A passes through with restriction magnetic flux forms magnetic loop.

So, number of poles and frequency to change the rotating excitation field being produced by armature coil 104 can be rotated by making outer rotor 200 Rate.Rotating excitation field after this modulation to produce torque with internal rotor 300 synchronous rotary.

Internal rotor 300 possesses the rotor core 301 being laminated with multiple electromagnetic steel plates in the axial direction.In this rotor core In 301, arrange multiple rotor tooths (salient pole portion) 302 that the oriented radial direction away from axle center extends in the circumferential.Rotor tooth 302 is formed For making outer peripheral face 302a relative with the inner peripheral surface 201b of the magnetic circuit component 201 of outer rotor 200 across the air gap G2.

This rotor tooth 302 has the rotor windings 330 including induction coil I and magnet exciting coil F.Induction coil I will be adjacent The side 302b of rotor tooth 302 between as groove 303, be wound in outer rotor 200 side of rotor tooth 302.Magnet exciting coil F is by phase As groove 303 between the adjacent side 302b of rotor tooth 302, it is wound in the center axis of rotor tooth 302.That is, induction coil I is in groove It is wound in outside the footpath direction of internal rotor 300 in 303, in the footpath direction that magnet exciting coil F is wound in internal rotor 300 in groove 303 Side.Rotor windings 330 including induction coil I and magnet exciting coil F constitute the coil in the present invention.

Induction coil I forms the winding winding so that in opposite direction on each rotor tooth 302 in the way of concentrating winding Adjacent one another are in the circumference of internal rotor 300, it is arranged in the circumference of internal rotor 300.This induction coil I is by magnetic flux interlinkage Produce (induction) faradic current.

Magnet exciting coil F forms the winding winding so that in opposite direction on each rotor tooth 302 in the way of concentrating winding Adjacent one another are in the circumference of internal rotor 300, it is arranged in the circumference of internal rotor 300.There is provided exciting current to this magnet exciting coil F To make its excitation, this magnet exciting coil F plays the function as electric magnet.

So, induction coil I is wound in magnet exciting coil F makes sense of current identical.

Here, 8 induction coil I accounting for mechanical angle 180 degree of Fig. 1 are claimed in the upper difference of direction of rotation (counterclockwise) Exhale as induction coil I1～I8.In addition, 8 magnet exciting coil F accounting for mechanical angle 180 degree are distinguished address in a rotational direction for encouraging Magnetic coil F1～F8.

In fig. 2, induction coil I1, I3, I5, I7 and magnet exciting coil F1, F2, F3, F4 are formed together with diode D1, D2 Rectification circuit C1 as closed circuit.In this rectification circuit C1, separate induction coil I1, I5 and the diode D1 string of 3 Connection connects, and separates 3 induction coil I3, I7 and diode D2 is connected in series, magnet exciting coil F1, F2, F3, F4 are by the company of series connection Connect.In addition, including induction coil I1, I5, being connected in series and include induction coil I3, I7, the string of diode D2 of diode D1 After connection is connected to and is connected side by side at both ends, the cathode side of diode D1, D2 be connected to including magnet exciting coil F1, F2, F3, F4 is connected in series.So, rectification circuit C1 be wired and constitute circuit so that by induction coil I1, I3, I5, I7 produce The respectively uniaxially rectification in diode D1, D2 of the faradic current of exchange, as DC excitation electric current be supplied to magnet exciting coil F1, F2、F3、F4.

In addition, induction coil I2, I4, I6, I8 and magnet exciting coil F5, F6, F7, F8 form work together with diode D3, D4 Rectification circuit C2 for closed circuit.In this rectification circuit C2, induction coil I2, I6 of separating 3 are connected with diode D3 Connect, separate 3 induction coil I4, I8 and diode D4 is connected in series, magnet exciting coil F5, F6, F7, F8 are connected in series. In addition, inclusion induction coil I2, I6, diode D3's is connected in series and the company of series connection including induction coil I4, I8, diode D4 It is connected on after both ends are connected side by side, be connected to the string including magnet exciting coil F5, F6, F7, F8 in the cathode side of diode D3, D4 Connection connects.So, rectification circuit C2 is wired and constitutes circuit so that the exchange that produced by induction coil I2, I4, I6, I8 Faradic current respectively uniaxially rectification in diode D3, D4, as DC excitation electric current be supplied to magnet exciting coil F5, F6, F7, F8.

Constituted according to this circuit, rectification can be carried out to the faradic current being produced by induction coil I, make to encourage as exciting current Magnetic coil F excitation, therefore can make rotor tooth 302 as electric magnet function.

Here, diode D1, D2, D3, D4 also can be by strings in the case of making induction coil I, magnet exciting coil F multipolarization Connection connection, to suppress usage quantity, uses in order to avoid a large amount of, does not form general H bridge type full-wave rectifying circuit, but respectively To carry out line by forming 180 degree phase contrast, to be formed and so that side's faradic current is inverted and carry out the neutral point of halfwave rectifier output Clamp half-wave rectifying circuit.

The coiling direction of the magnet exciting coil F of rectification circuit C1, C2 is contrary between each adjacent rotor tooth 302. Therefore, a rotor tooth 302 constituting the internal rotor 300 of a part of magnetic loop is magnetized, thus play making S pole and outer rotor The function of 200 relative electric magnet, the direction of magnetic flux is pole piece portion 201A to the S pole from outer rotor 200.In addition, adjacent is another One rotor tooth 302 is magnetized, thus play making the function of the N pole electric magnet relative with outer rotor 200, the direction of magnetic flux be from N pole is to outer rotor 200 side.

Here, the generation principle of the torque of explanation electric rotating machine 1.In internal rotor 300, pass through outer rotor from stator 100 The rotation by this outer rotor 200 in the magnetic fluxs of 200 interlinkages and the magnetic flux modulated synchronously is entered with the rotation of internal rotor 300 Row interlinkage.

In addition, in electric rotating machine 1, comprising without outer rotor in the magnetic flux interlinking with the induction coil I of internal rotor 300 200 compositions modulated (synchronous with the rotation of internal rotor 300) and change, thus, it is possible to make induction coil I produce exchange Faradic current.Then, with diode D1, D2, rectification is carried out to the faradic current of this exchange and become the excitation electricity of direct current Stream, is energized to magnet exciting coil F to making rotor tooth 302 play the function of electric magnet, can produce magnetic flux.So, electric rotating machine 1 Torque can be produced.

Additionally, now, pass through pole piece portion 201A and the internal rotor 300 of outer rotor 200 from the stator tooth 102 of stator 100 The magnetic flux of rotor tooth 302 interlinkage is to provide electric power to produce the armature coil 104 of distribution winding from alternating current power supply.

However, in the present embodiment, this armature coil 104 is using distribution winding, but can also adopt and concentrate winding. In the case of using concentrating winding, the magnetic flux interlinking with rotor tooth 302 can be made to be superimposed what ratio was produced by the coil that distribution winds Higher harmonic component more than situation.Be added to this magnetic flux higher harmonic component play magnetic flux variation effect, therefore can Make induction coil I effectively produce faradic current, bigger exciting current can be supplied to magnet exciting coil F to produce excitation magnetic Logical.

Therefore, electric rotating machine 1 is not provided with permanent magnet just can make internal rotor 300 utilize electric magnet torque (revolving force) relatively Rotation.In this internal rotor 300, rotor tooth 302 is made to play the direction of magnetization (N pole, S pole) electromagnetism alternately arranged side by side in the circumferential The function of ferrum, joins thus, it is possible to make the magnetic flux of interlinkage between outer rotor 200 and stator 100 successfully roundabout in groove 303.

In this electric rotating machine 1, outer rotor 200 rotates against with respect to stator 100, in addition, outer turn via this rotation The internal rotor 300 that the magnetic flux of sub 200 (magnetic circuit components 201) is interlinked is rotated against due to electric magnet torque, therefore can make outer Rotor 200 low speed rotation, makes internal rotor 300 high-speed rotation.In addition, also outer rotor 200 high-speed rotation can be made on the contrary, make interior turning Sub 300 low speed rotation.

This electric rotating machine 1 produces above-mentioned rotation driving institute according to the structure of stator 100, outer rotor 200 and internal rotor 300 The torque needing.Specifically, when the number of pole-pairs of the armature coil 104 by stator 100 is set to A, using the number of poles as outer rotor 200 The quantity of pole piece portion 201A be set to H, the number of pole-pairs of the rotor tooth (electric magnet) 302 of the number of pole-pairs as internal rotor 300 is set During for P, obtain the combination making following formula (1) set up.

H=| A ± P | ... (1)

In the structure shown here, effectively torque be can produce, outer rotor 200 and internal rotor 300 made with respect to stator 100 efficiently Rotate against.For example, in the electric rotating machine 1 of present embodiment, number of pole-pairs A=4 of armature coil 104 of stator 100, outer turn The number of poles H=12 of son 200, number of pole-pairs P=8 of the rotor tooth 302 of internal rotor 300, meet above-mentioned formula (1).

As shown in figure 3, in electric rotating machine 1, being rotatably accommodated with outer rotor 200 in stator 100, and, Rotatably it is accommodated with internal rotor 300 in this outer rotor 200.

In addition, outer rotary shaft 210 is connected with so as to can rotate integrally to the magnetic circuit component 201 of outer rotor 200.Internally turn The rotor core 301 of son 300 is connected with inner rotary shaft 310 so as to can rotate integrally.Thus, electric rotating machine 1 is configured to utilize Power is delivered to the magnetic modulation type double-axis motor of outer rotary shaft 210 and inner rotary shaft 310 by magnetic modulation principle respectively.

Therefore, electric rotating machine 1 can possess the function equal with mechanical planetary gears, for example, can make stator 100 Play the function of the central gear of planetary gears, make outer rotor 200 play the function of the bracket of planetary gears, make interior Rotor 300 plays the function of the interior grinding tooth wheel of planetary gears.Additionally, the electric rotating machine 1 of present embodiment is configured to outer turning The function of son 200 performance bracket.

According to this structure, for example, electric rotating machine 1 is being equipped on together with electromotor (internal combustion engine) hybrid vehicle work In the case of driving source, by the inner rotary shaft 310 of the outer rotary shaft 210 of outer rotor 200 and internal rotor 300 respectively with vehicle Power transfer path directly links, and the battery of vehicle is connected to by inverter the armature coil 104 of stator 100, thus revolves Rotating motor 1 also can play the function of Poewr transmission mechanism together with driving source.

(outer rotor)

In Fig. 3, Fig. 4, outer rotor 200, in addition to above-mentioned magnetic circuit component 201 and non-magnetic member 202, is also equipped with wrapping Include the outer rotary shaft 210 of iron material, circular flange 215, cylindric Cylindorical rod 214.

Outer rotary shaft 210 includes columned minor diameter part 210A and the continuous flange in the other end with this minor diameter part 210A The large-diameter portion 210B of shape.Footpath direction centered on rotary shaft 1C for the large-diameter portion 210B forms and obtains footpath direction than minor diameter part 210A Greatly, relative with magnetic circuit component 201 in the other end side of axis direction.

The minor diameter part 210A of outer rotary shaft 210 is provided with resolver ring from the one end of axis direction to the other end 221st, resolver rotor 220, tray 218.Resolver rotor 220 is resolved device ring 221 and is fixed on minor diameter part 210A, can be freely Rotate integrally.

Tray 218 is formed as circular, and the lateral support of the one end side of the axis direction in its inner rim portion described later The foreign steamer of radial ball bearing 21.In addition, nut portion 218A is provided with tray 218, bolt described later 26 and this nut portion 218A screws togather.

Flange 215 is arranged between the large-diameter portion 210B of outer rotary shaft 210 and magnetic circuit component 201 and non-magnetic member 202. Flange 215 includes the nonmagnetic materials such as such as aluminium.Thus, prevent the magnetic flux being produced by armature coil 104 from flowing to as leakage magnetic flux Outer rotary shaft 210 including iron material.

It is respectively formed with multiple inserting hole 210B1, the 215A arranging in the circumferential in large-diameter portion 210B and flange 215, Nonmagnetic material bolt 219 has been inserted in these inserting holes 210B1,215A.It is formed with inserting hole in non-magnetic member 202 202A, has inserted nonmagnetic material bolt 219 in this inserting hole 202A.

Nonmagnetic material bolt 219 does not make the nonmagnetic material that magnetic flux passes through constitute by PPS (polyphenylene sulfide) resin etc..Therefore, In outer rotor 200, each pole piece portion 201A (Fig. 1 reference) magnetic is independent, with the situation being made up of nonmagnetic material bolt 219 magnetic Compare, the magnetic conductance that each pole piece portion 201A brings can be made to change (salient pole ratio) and become big.Thus, the torque density in electric rotating machine 1 carries High.

In addition, nonmagnetic material bolt 219 is made up of nonmagnetic material, the higher hamonic wave magnetic producing in gap therefore can be reduced The logical vortex causing in nonmagnetic material bolt 219 and the loss that the vortex of generation causes between nonmagnetic material bolt 219.

Cylindorical rod 214 is arranged on the other end side of the axis direction of magnetic circuit component 201 and non-magnetic member 202 (in Fig. 3 In be left end side), be formed with this Cylindorical rod 214 and screw togather with the other end of the axis direction of nonmagnetic material bolt 219 Female thread 214A.

Cylindorical rod 214 is for example made up of the rustless steel of nonmagnetic material.Thus, prevent the magnetic flux being produced by armature coil 104 As leakage magnetic flux, outside is flowed to by Cylindorical rod 214.

In outer rotor 200, nonmagnetic material bolt 219 is inserted large-diameter portion successively from the other end side of axis direction The inserting hole 210B1 of 210B, the inserting hole 215A of flange 215, the inserting hole 202A of non-magnetic member 202, with Cylindorical rod 214 Female thread 214A screws togather, and thus flange 215 and outer rotary shaft 210 is fixed on magnetic circuit component 201 and the axle of non-magnetic member 202 The one end side (in figure 3 for right-hand member side) in line direction, and Cylindorical rod 214 is fixed on magnetic circuit component 201 and non magnetic structure The other end side of the axis direction of part 202.

(internal rotor)

In Fig. 3, Fig. 5, internal rotor 300 possesses the inner rotary shaft 310 including iron material.Outer in this inner rotary shaft 310 All portions are provided with balance plate 311, pad 312, rotor windings 330, pad from one end lateral the other end side of axis direction 314th, diode support 315, balance plate 316, U nut 317, tray 318, resolver rotor 319, resolver ring 320.

Iron material is formed as circular and forms by balance plate 311, utilizes the flange of inner rotary shaft 310 in inner peripheral portion Portion positions in the axial direction.The one end side (Fig. 3, right-hand member side) of the axis direction from rotor windings 330 for the balance plate 311 every Pad 312 and support rotor windings 330.

Pad 312 is installed between the one end of the axis direction of rotor windings 330 and balance plate 311.Pad 312 shape The footpath direction becoming footpath direction ratio rotor windings 330 centered on rotary shaft 1C is little, in rotor windings 330 and balance plate 311 Between be formed with space.Aluminum is formed as circular and forms by pad 312.Balance plate 311 and pad 312 and rotor around Group 330 rotates integrally, and prevents balance plate 311 and pad 312 from rotating with respect to inner rotary shaft 310.

Balance plate 316 by iron material formed circular form, inner peripheral portion utilize U nut 317 in axis direction Upper positioning.The other end side (Fig. 3, left end side) of the axis direction from rotor windings 330 for the balance plate 316 is propped up by diode Frame 315 and pad 314 support rotor windings 330.

Pad 314 is installed between the other end of the axis direction of rotor windings 330 and diode support 315.Pad The size that piece 314 is formed as the footpath direction centered on rotary shaft 1C is less than rotor windings 330, in rotor windings 330 and two poles It is formed with space between pipe holder 315.Aluminum is formed circular forming by pad 314.

Diode support 315 includes being formed as circular circuit substrate, remains aforesaid diode D1～D4.Balance Plate 316, diode support 315 and pad 314 and rotor windings 330 rotate integrally, and prevent balance plate 316, diode support 315 Rotate with respect to inner rotary shaft 310 with pad 314.

U nut 317 is formed with female thread (not shown) in inner peripheral surface, is formed not with the outer peripheral face in inner rotary shaft 310 The external thread spiro fastening of diagram.U nut 317 is screwed togather with inner rotary shaft 310, thus by rotor windings 330 by pad 312,314 It is balanced plate 311,316 with diode support 315 in the state of the both sides of axis direction are clamped in axis direction and rotation side It is fixed on inner rotary shaft 310 upwards.

Tray 318 is formed as circular, the other end side (in figure 3 for left end side) of the axis direction in its inner rim portion Lateral support radial ball bearing described later 23 foreign steamer.In addition, the one end of the axis direction in the outer edge of tray 318 (in Fig. 3, right-hand member side) is provided with nut portion 318A for side, screws togather bolt 25 described later to this nut portion 318A.

(comprising the overall structure of casing)

In figure 3, electric rotating machine 1 possesses casing 10, is accommodated with aforesaid stator 100, turns outward in the inside of this casing 10 Son 200 and internal rotor 300.

Casing 10 possesses the 1st flange 11, the 1st pad 12, the 1st casing from one end lateral the other end side of axis direction 13rd, the 2nd casing 14, the 2nd pad 15, the 2nd flange 16.

1st casing 13 includes discoid flat part 13A and continuous with the other end side of the outer edge of this flat part 13A Cylindrical shape cylindrical portion 13B.It is formed with through hole 13C in the central part of flat part 13A, be through with this through hole 13C The minor diameter part 210A of outer rotary shaft 210.

It is fixed with stator 100 in the inner peripheral surface of cylindrical portion 13B.In addition, the magnetic circuit component of cylindrical portion 13B and outer rotor 200 201 is relative on the direction of footpath with rotor windings 330 with the rotor core 301 of non-magnetic member 202 and internal rotor 300.

So, it is accommodated with the stator 100 of main portions as electric rotating machine 1, outer inside the footpath direction of cylindrical portion 13B The rotor core 301 of the magnetic circuit component 201 of rotor 200 and non-magnetic member 202 and internal rotor 300 and rotor windings 330.

It is provided with radial ball bearing 21 in through hole 13C.From the one end of the axis direction flat part to the 1st casing 13 13A inserts bolt 26, the nut portion 218A of bolt 26 and tray 218 is screwed togather, thus by radial ball bearing 21 in axis side Position upwards.The flat part 13A of the 1st casing 13 supports the minor diameter part 210A of outer rotary shaft 210 by this radial ball bearing 21 And so that it is rotated freely.

In addition, being fixed with resolver sensor 31 in through hole 13C.On the other hand, in the minor diameter part of outer rotary shaft 210 It is provided with circular resolver rotor 220 so as to relative with resolver sensor 31 on the direction of footpath in 210A.Resolver rotor 220 resolved device rings 221 are fixed on the minor diameter part 210A of outer rotary shaft 210, can rotate integrally freely.

Resolver sensor 31 detects the anglec of rotation of outer rotor 200 by the anglec of rotation detecting resolver rotor 220.

2nd casing 14 has：Cylindric outer cylindrical portion 14A；Configuration is in the cylindrical shape of the inner circumferential side of this outer cylindrical portion 14A Cylinder portion 14B；And the other end side continuously discoid flat part with outer cylindrical portion 14A and the axis direction of inner cylinder portion 14B 14C.

By the outer cylindrical portion 14A pairing in the axial direction of cylindrical portion 13B of the 1st casing 13 and the 2nd casing 14, with not shown Bolt fastening, thus in the state of storage stator 100, outer rotor 200 and internal rotor 300, link the 1st casing 13 and the 2nd case Body 14.

Outer cylindrical portion 14A is relative on the direction of footpath with the other end of the axis direction of the Cylindorical rod 214 of outer rotor 200, leads to Cross radial ball bearing 22 support cylinder axle 214 so as to rotate freely.

Here, 200 one-tenth cup configuration of outer rotor of present embodiment, magnetic circuit component 201 and non-magnetic member 202 are in axis The large-diameter portion 210B of outer rotary shaft 210 is fixed in the one end side in direction.

If by for example single for the outer rotor 200 of this cup configuration fulcrum support in the 1st casing 13, occurring inherently to shake The intrinsic vibration of dynamic situation, the electromagnetic attraction acting on outer rotor 200 and outer rotor 200 occurs resonance to act on excessive In the case of power, electric and magnetic oscillation can be led to become big.In addition, in the case that outer rotor 200 carries out eccentric drive, can be to single fulcrum The radial ball bearing supporting applies excessive load, and the ageing resistance of this radial ball bearing can be impacted.

Therefore, in the present embodiment, it is configured to using radial ball bearing 22, the axis direction of outer rotor 200 is another One end side is that Cylindorical rod 214 is supported in the 2nd casing 14, and above-mentioned radial ball bearing 22 is than the radial direction supporting outer rotary shaft 210 Size on the footpath direction centered on rotary shaft 1C for the ball bearing 21 is big.

Thus, the outer rotor 200 of present embodiment can prevent electromagnetic vibration as described above using double fulcrum support structures Dynamic increase, radial ball bearing 21 is carried out with eccentric drive lead to apply the situation of excessive load.

It is fixed with resolver sensor 32 in the inner circumferential of inner cylinder portion 14B.On the other hand, in footpath side on inner rotary shaft 310 It is relatively provided with circular resolver rotor 319 upwards with resolver sensor 32.Resolver rotor 319 is resolved device ring 320 are fixed on inner rotary shaft 310, so that them is integratedly rotated freely.

Resolver sensor 32 detects the anglec of rotation of internal rotor 300 by the anglec of rotation detecting resolver rotor 319.

It is provided with radial ball bearing 23 in the inner circumferential of the one end of the axis direction of inner cylinder portion 14B.Another from axis direction One end inserts bolt 25 to inner cylinder portion 14B, the nut portion 318A of bolt 25 and tray 318 is screwed togather, thus by radial direction ball Bearing 23 positions in the axial direction.Inner cylinder portion 14B of the 2nd casing 14 supports inner rotary shaft 310 by radial ball bearing 23 So that it is rotated freely.

It is provided with radial ball bearing 24 in the inner circumferential of the large-diameter portion 210B of outer rotary shaft 210.Large-diameter portion 210B passes through radially Ball bearing 24 supports the one end of inner rotary shaft 310 so that it is rotated freely.

It is formed with through hole 12A in the 1st pad 12, distribution this insertion of 31A insertion that analytically device sensor 31 extends Hole 12A.In addition, the 1st pad 12 is installed between the 1st casing 13 and the 1st flange 11, thus in the 1st casing 13 and the 1st flange The space passed through for distribution 31A is guaranteed between 11.

It is formed with through hole 15A in the 2nd pad 15, distribution this insertion of 32A insertion that analytically device sensor 32 extends Hole 15A.In addition, the 2nd pad 15 is installed between the 2nd casing 14 and the 2nd flange 16, thus in the 2nd casing 14 and the 2nd flange The space passed through for distribution 32A is guaranteed between 16.

Utilize bolt (not shown) in the one end side of the axis direction of the 1st casing 13 across the 1st cylindric pad 12 It is fixed with the 1st flange 11.The size that 1st flange 11 is formed as the footpath direction centered on rotary shaft 1C is bigger than the 1st casing 13 Flange shape, is fixed on the car body of vehicle using bolt (not shown).

In the inner circumferential side of the 1st flange 11, it is provided with connection in the one end of the axis direction of the minor diameter part 210A of outer rotary shaft 210 Axial organ 33.The drive shaft of vehicle for example (not shown) is linked with by shaft coupling 33 to the minor diameter part 210A of outer rotary shaft 210.Outward Rotary shaft 210 be rotated through the drive shaft that this shaft coupling 33 passes to vehicle.

Utilize spiral shell (not shown) in the other end side of the axis direction of the 2nd casing 14 across the 2nd cylindric pad 15 Bolt is fixed with the 2nd flange 16.The size that 2nd flange 16 is formed as the footpath direction centered on rotary shaft 1C is bigger than the 2nd casing 14 Flange shape, be fixed on the car body of vehicle using bolt (not shown).

In the inner circumferential side of the 2nd flange 16, it is provided with the other end of the axis direction of the inner rotary shaft 310 of internal rotor 300 Shaft coupling 34, is linked with the output shaft of the electromotor (not shown) of such as vehicle to the other end of this shaft coupling 34.By this Shaft coupling 34 transmits the rotation of electromotor to inner rotary shaft 310.

Additionally, in the electric rotating machine 1 of present embodiment, outer rotary shaft 210 is connect with the drive shaft of vehicle, internally rotate Axle 310 connects the output shaft of electromotor, but it is also possible to outer rotary shaft 210 in the electric rotating machine of other embodiment The output shaft of motivation of binding up one's hair, connects the drive shaft of vehicle to inner rotary shaft 310.

(with regard to insulator)

In such electric rotating machine 1 constituting, in the situation directly linking the output shaft of internal rotor 300 and electromotor Under, the vibration of electromotor is passed to output shaft and is passed to internal rotor 300, and the rotor windings 330 of internal rotor 300 can vibrate. Particularly in the case that rotor windings 330 resonate, big vibration can occur.

If rotor windings 330 vibrate, the epithelium of rotor windings 330 be possible to include turning of electromagnetic steel plate Rub between sub- tooth 302 damaged.If the epithelium breakage of rotor windings 330 may result in rotor windings 330, and earth fault occurs.

Therefore, in the present embodiment, in figure 6, in internal rotor 300, rotor tooth 302 and rotor windings 330 it Between possess insulator 340 including the resin with electrical insulating property etc..

This insulator 340 keeps with the state of being previously wound around rotor windings 330 outside, is installed on each rotor tooth 302.Thus, rotor windings 330 with rotor tooth 302 directly contact, therefore will not prevent the epithelium of rotor windings 330 with rotor Rub between tooth 302 damaged.In the present embodiment, rotor tooth 302 possesses unlike the rotor tooth of existing electric rotating machine The flange part on top, but identical with cross sectional shape at base portion in top ends, or slow expansion.

Thus it is therefore prevented that in the magnetic flux being produced and being interlinked with the induction coil I of internal rotor 300 by stator 100 with interior turn The asynchronous magnetic flux that is asynchronous and changing that rotates of son 300 is blocked by the flange part of rotor tooth 302, can make induction coil I Efficiently produce faradic current.In addition, insulator 340 can be installed to outside the direction of footpath rotor tooth 302.

Hereinafter, the detailed composition of insulator 340 is described.In Fig. 7, Fig. 8, Fig. 9, insulator 340 has：Turn as being wound around The cylinder portion 341 of the axle of sub- winding 330；And it is arranged on the flange part 342 of the rotor footpath direction outboard end in this portion 341.

Outside the rotor footpath direction in cylinder portion 341, it is wound with induction coil I with gap with being spaced apart of flange part 342.? The rotor footpath direction inner circumferential side in cylinder portion 341 is wound with magnet exciting coil F.

It is provided with the embedded hole 341A of rectangular cross sectional shape in cylinder portion 341, this embedded hole 341A is formed to allow rotor tooth The size that 302 gaplesss are fitted together to.

Flange part 342 is formed as end outside the rotor footpath direction in cylinder portion 341 and exists along the outer peripheral face of internal rotor 300 Week upwardly extends prominent.In addition, flange part 342 also extends in the axial direction projecting, the part that this extension projects is formed as axle The length in line direction is more than the length of circumference.

As shown in Fig. 6, Fig. 9, this insulator 340 is in the state of the boxlike bobbin being wound with induction coil I and magnet exciting coil F Under make rotor tooth 302 be embedded in embedded hole 341A, outside the direction of footpath, be thus installed on rotor tooth 302.

So, insulator 340 can be to rotor core 301 outside the direction of footpath in the state of being wound with rotor windings 330 Rotor tooth 302 in each rotor tooth 302 installing/dismounting, become the structure of so-called boxlike bobbin, therefore except protect rotor Moreover it is possible to realize improving the effect of the assembleability of internal rotor 300 beyond the effect of the epithelium of winding 330.

Insulator 340 has and will be wound around the region of induction coil I and be wound around the intermediate rib that the region of magnet exciting coil F separates 343.This intermediate rib 343 be formed as in the same manner as flange part 342 from cylinder portion 341 extend be projected into groove 303.

In addition, insulator 340 has is located at the interior side rib 344 leaning on rotary shaft 1C side than intermediate rib 343.Interior side rib 344 shape Become to extend from the rotor footpath direction inner peripheral portion in cylinder portion 341 in the same manner as flange part 342 and be projected into groove 303, excitation wire will be wound around The region of circle F separates.

So on each rotor tooth 302 install insulator 340 structure in, need keep insulator 340 so as not to due to Internal rotor 300 rotation when centrifugal force and fly out from rotor tooth 302.Therefore, in the present embodiment, using pad 312, 314 make insulator 340 chimeric with pad 312,314, in internal rotor in the state of insulator 340 is clamped in the both sides of axis direction Insulator 340 is kept on 300 footpath direction.

In Fig. 7, Fig. 8, Fig. 9, Tu10Zhong, insulator 340 has insulator holding than interior side rib 344 by rotary shaft 1C side Portion 345.Insulator maintaining part 345 is formed at the position at the both ends in the pivot center direction in cylinder portion 341 from interior side rib 344 base portion extends to rotor footpath direction inner circumferential side.

It is formed with the recess 345A as the 1st stage portion in insulator maintaining part 345, this recess 345A is from rotary shaft Line direction is formed as arc-shaped when seeing, in rotary shaft 1C side shape in the case that multiple rotor tooths 302 are provided with insulator 340 Groove 347 circlewise.The groove 347 of ring-type constitutes the step of the ring-type in the present invention.

On the other hand, in fig. 11, it is formed with protuberance 312A, 314A of ring-type, this protuberance in pad 312,314 312A, 314A are used for chimeric with the groove 347 of the ring-type being formed by the recess 345A of multiple insulator maintaining parts 345.Pad 312, 314 constitute the retaining ring in the present invention.In addition, protuberance 312A, 314A constitute the 2nd stage portion in the present invention.

In fig. 12, insulator 340 is clamped from axis direction by pad 312,314, the groove of ring-type 347 and protuberance 312A, 314A is fitted together to thus being fixed.

So, it is respectively equipped with recess 345A and protuberance 312A, 314A in insulator 340 and pad 312,314, thus pad Piece 312,314 clamps insulator 340 from axis direction, in the state of so that recess 345A and protuberance 312A, 314A is fitted together to, can gram Take centrifugal force to keep insulator 340.

In addition it is also possible to be provided with protuberance in insulator 340 side, and the recess chimeric with this protuberance is arranged on pad 312nd, 314 side.That is, insulator 340 can also have in the case that insulator 340 is installed to multiple rotor tooths 302 in rotation Rotating shaft 1C side forms the side in the recess of step of ring-type or protuberance, had the recess chimeric with the step of ring-type or The pad 312,314 of the opposing party in protuberance is fixed.

The action effect of electric rotating machine 1 as described above is described.As described above, in internal rotor 300, in each rotor Insulator 340 is provided with tooth 302, this insulator 340 be wound with by with the interlinking of magnetic flux being produced by armature coil 104 and Cause faradic induction coil I and the boundary magnetic coil F in magnetic field is produced by faradic energising.

In the present embodiment, the insulator maintaining part 345 of insulator 340 have insulator 340 is installed on multiple Form the recess 345A of the groove 347 of ring-type in the case of rotor tooth 302 in rotary shaft 1C side, be there is groove 347 with this ring-type The pad 312,314 of chimeric protuberance 312A, 314A is fixing.

According to this composition, pad 312,314 is fitted to the groove of the ring-type of the rotary shaft 1C side being formed at insulator 340 347 carry out fixed insulation body 340, therefore can prevent due to centrifugal force when internal rotor 300 rotates make insulator 340 and pad 312, 314 chimeric disengaging.

And, it is set to clamp the structure of insulator 340 from axis direction with pad 312,314, when therefore can shorten assembling Between, improve mechanical strength.

Being additionally, since is the recess 345A structure chimeric with the protuberance of pad 312,314 of insulator 340, therefore with The structure that insulator 340 is separately fixed on rotor tooth 302 is compared by curing materials etc., and the difference of intensity can be made to become Little, more reliably overcome centrifugal force to keep insulator 340.In addition, with curing materials etc. by insulator 340 separately The structure being fixed on rotor tooth 302 compares, due to not using curing materials to enable lightness.In addition, solid with use Change material by insulator 340 be fixed on the structure of rotor tooth 302 simultaneously using in the case of can reduce the usage amount of curing materials, Therefore lightness can be realized due to the decrement of curing materials.

Although disclosing embodiments of the present invention, but it is clear that those skilled in the art can be without departing from the scope of the present invention And apply to change.Wish for all such corrections to be contained in claim with equivalents.

The electric rotating machine 1 of present embodiment be the inner-rotor type of radial clearance structure or axial gap structure or Person's outer-rotor structure.In addition, each coil can adopt copper cash, aluminium conductor, litz wire.In addition, magnetic circuit component 201, rotor core 301 Also SMC (the Soft Magnetic Composite) iron core of soft magnetic composite material can be employed as to replace laminated electromagnetic steel Plate.In addition, electric rotating machine 1 not only can apply to motor vehicle driven by mixed power, can also apply to the other such as wind-driven generator, work mechanism Industrial circle.

Claims (1)

1. a kind of electric rotating machine, possesses：

Stator, it has the armature coil producing magnetic flux during energising；And

Rotor, it has the multiple salient pole portions being neck and neck in circumference, and above-mentioned salient pole portion is wound with the line interlinking with above-mentioned magnetic flux Circle,

Above-mentioned electric rotating machine is characterised by,

The insulator that above-mentioned rotor is formed as being wound with above-mentioned coil is installed on each above-mentioned salient pole portion,

In the case that multiple above-mentioned salient pole portions are provided with above-mentioned insulator, above-mentioned insulator is formed with ring-type in rotation shaft side 1st stage portion, and above-mentioned insulator fixed by retaining ring, and above-mentioned retaining ring has 2nd chimeric with above-mentioned 1st stage portion Rank portion.