CN105391262B - Brushless rotary motor - Google Patents

Brushless rotary motor Download PDF

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Publication number
CN105391262B
CN105391262B CN201510527891.0A CN201510527891A CN105391262B CN 105391262 B CN105391262 B CN 105391262B CN 201510527891 A CN201510527891 A CN 201510527891A CN 105391262 B CN105391262 B CN 105391262B
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China
Prior art keywords
main
excitation unit
cooler
frame
exciter
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CN201510527891.0A
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CN105391262A (en
Inventor
冈岛直辉
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Toshiba Mitsubishi Electric Industrial Systems Corp
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Toshiba Mitsubishi Electric Industrial Systems Corp
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Priority to JP2014177528A priority patent/JP6054348B2/en
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Publication of CN105391262A publication Critical patent/CN105391262A/en
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Abstract

Brushless rotary motor includes:The main rotor of main shaft and main rotor iron core with electric rotating machine, the main stator with main stator iron core and main stator coil, excitation unit shaft (11a), the excitation unit for having rotating rectifier (110) and the exciter with exciter rotor and exciter stator, frame, cooler, cooler shield, excitation unit shield, internal fan.Rotating rectifier (110) is provided with the stirring wing (118) being stirred to the recyclegas in excitation unit shield.

Description

Brushless rotary motor
Technical field
The present invention relates to the brushless rotary motors with rotating rectifier.
Background technology
In synchronous rotation motor, it usually is equipped with armature winding in stator side, Exciting Windings for Transverse Differential Protection is equipped in rotor side.It is logical Often, from the rectifier for being set to Stationary side by brush direct current power is provided to the Exciting Windings for Transverse Differential Protection for being set to rotor.Due to the electricity Brush is needed to safeguard and be replaced, therefore, in order not to use brush, it is known to by the way that the rotating rectifier rotated together with rotor is arranged To realize the mode of non-brushing.
Existing technical literature
Patent document
Patent document 1:Japan Patent opens clear 63-156559 bulletins in fact
Patent document 2:Japan Patent opens clear 63-21472 bulletins in fact
Invention content
The technical problems to be solved by the invention
In the case of larger for cooling effect of the fever of rectifier from outside, since rectifier can be made tight Gathering, therefore it has been known that there is the methods (patent document 1) that the cooling fan for being installed on shaft is arranged near such as rectifier.The feelings Under condition, axial in shaft needs that the space for installing cooling fan is arranged.
Alternatively, it has been known that there is by a manner of axially clamping the retaining ring of rectifier by rectifier and cooling fan relatively into The method (patent document 2) of row setting.In this case, the structure that two rectifiers can not be used relative to each other, thus can be to whole The setting of numbers of stream device impacts.
Therefore, it is an object of the present invention in the brushless rotary motor with rotating rectifier, inhibit to rotary rectifier The influence of the configuration of device, while ensuring the cooling performance of excitation unit.
Technical scheme applied to solve the technical problem
In order to achieve the above objectives, brushless rotary motor according to the present invention is characterised by comprising:Main rotor, should Main rotor has the main shaft for being pivotally supported in a manner of it can be rotated around main shaft and being extended along major axes orientation and is fixed on The radial outside of the main shaft and the main rotor iron core extended along major axes orientation;Main stator, the main stator have configuration described The radial outside of main rotor iron core and the main stator iron core that extends along major axes orientation and the master for being wound in the main stator iron core are fixed Subcoil;Excitation unit, which, which has, is combined with the major axes orientation end of the main shaft and prolongs along major axes orientation The excitation unit shaft stretched, the rotating rectifier and exciter that are rotated together with the excitation unit shaft, the excitation equipment There is the rotating excitation machine rotor together with the excitation unit shaft and is configured simultaneously in a manner of opposite with the exciter rotor It is fixedly attached to the exciter stator of the radial outside of the exciter rotor;Frame, the frame store the main rotor iron core With the main stator;Cooler, the cooler have cooling tube, the cooling tube by the frame the main stator and institute It states main rotor iron core and carries out cooling recyclegas as the outer cooled side liquid of pipe, using the extraneous air from outside as pipe Interior cooling side liquid carries out heat exchange;Cooler shield, the cooler shield are installed on the top of the frame, with the frame Frame constitutes confined space together, and includes the cooler in inside, passes through the cooler for being flowed into out of described frame Entrance opening and it is connected with the frame for flowing out to the opening of the cooler outlet in the frame;Excitation unit protects Cover, which includes the excitation unit in inside, is connected with the cooler shield and the frame;With And internal fan, the internal fan are installed on the main shaft, and the circulation of fluid is made to be recycled in the confined space, in institute It states rotating rectifier and is provided with the stirring wing being stirred to the recyclegas in the excitation unit shield.
Invention effect
In accordance with the invention it is possible in the brushless rotary motor with rotating rectifier, rotating rectifier is matched in inhibition The influence brought is set, while ensuring the cooling performance of excitation unit.
Description of the drawings
Fig. 1 is the transverse sectional view of the brushless rotary motor involved by embodiments of the present invention.
Fig. 2 is the circuit diagram of the excitation unit of the brushless rotary motor involved by embodiments of the present invention.
The longitudinal sectional view of lower-left a quarter when Fig. 3 is from the III-III lines of Fig. 1.
Longitudinal sectional view when Fig. 4 is the IV-IV lines observation of Fig. 3.
Specific implementation mode
In the following, with reference to attached drawing, the brushless rotary motor involved by embodiments of the present invention is illustrated.Herein, right In mutually the same or similar part, identical label is marked, and omit repeated explanation.
Fig. 1 is the transverse sectional view of the electric rotating machine involved by present embodiment.Brushless rotary motor 200 includes main rotor 10, main stator 20, connection side bearing 41, exciter side bearing 42, cooler 61.Main rotor 10 has main shaft 11, Yi Jishe It is placed in the main rotor iron core 12 of the radial outside of main shaft 11.Main shaft 11 is in the axial direction along horizontal extension, with rotatable side Formula is concatenated side bearing 41 and exciter side bearing 42 is pivotally supported respectively.
Main rotor iron core 12 is made of ferromagnetic, is the cylindric integral structure for having opening in center.In addition, circle The steel plate of plate can be the stepped construction being laminated in an axial direction.Main rotor iron core 12 is equipped with magnet exciting coil (not shown).It is main Shaft 11 is equipped with internal fan 15a, 15b.
Main stator 20 is set to the radial outside of main rotor 10, is the cylindrical shape axially extended.Main stator 20 has master Stator core 21 and main stator coil 22.Main stator iron core 21 is made of ferromagnetic, is the plectane that will have opening in center The stepped construction that the steel plate of shape is laminated in an axial direction.In the main stator iron core 21 opposite with the radial outside of main rotor iron core 12 Inside be formed with groove portion (not shown), which is separated from each other interval in the circumferential, and axially extends.In each groove portion and The two axial outsides of main stator iron core 21 are equipped with main stator coil 22.
Connection side bearing 41 is fixedly attached to connection side bearing holder 52, and exciter side bearing 42 is fixedly attached to exciter Side bearing holder 53.
Main rotor iron core 12 and main stator 20 are incorporated in by frame 51, connection side bearing holder 52 and exciter side bearing In the space that holder 53 is formed.The top of frame 51 is provided with cooler shield 62.Cooler shield 62 stores cooler 61.
Frame 51 is connected with cooler shield 62 by cooler entrance opening 51a, cooler outlet opening 51b, 51c It is logical.Partition board 51d, the 51f for being formed with circular opening are equipped in frame 51.Partition board 51d is set to the connection of main stator iron core 21 The outside in 41 direction of side bearing.Partition board 51f is set to the outside in 42 direction of exciter side bearing of main stator iron core 21.
The prolongation for the part of main shaft 11 supported by exciter side bearing 42 is connected with excitation unit shaft 11a It connects.In addition, excitation unit shaft 11a is shown in the present embodiment as the component different from main shaft 11, but main shaft 11 It can be integral structure with excitation unit shaft 11a, excitation unit shaft 11a is formed by the prolongation of main shaft 11.
Excitation unit 100 has exciter 120 and rotating rectifier 110.Exciter 120 includes having exciter rotor line Enclose the exciter rotor 121 and exciter stator 122 of 121a (Fig. 2).Rotating rectifier 110 is installed on excitation unit shaft 11a is rotated around the spindle together with excitation unit shaft 11a.
Exciter stator 122 is set to the radial direction of exciter rotor 121 in a manner of opposite with exciter rotor 121 Outside is static from external stability bearing for ring-type.Not shown power supply provides direct current power to exciter stator 122.Separately Outside, exciter stator 122 is not limited to the electromagnet of coil.For example, that need not be to the exciting current of brushless rotary motor 200 Flow through the coil of main rotor 10 electric current controlled in the case of, can also be permanent magnet.
Fig. 2 is the circuit diagram of excitation unit 100.In the inside of the excitation for the direct current that exciter stator 122 generates, if excitation Machine rotor 121 rotates around the spindle, then the induction electric of exchange is generated in the exciter rotor coil 121a of exciter rotor 121 Gesture.AC power is converted into direct current power by rotating rectifier 110 caused by exciter rotor coil 121a, and is supplied to The magnet exciting coil (not shown) set by main rotor iron core 12 equally rotated around main rotating shaft.Utilize the excitation, main stator line Induced electromotive force is generated in circle 22 i.e. armature winding.
As shown in Figure 1, exciter 120 is accommodated in excitation unit shield 63.It is protected in excitation unit shield 63 and cooler Between cover 62, it is provided with the excitation unit inlet duct 64 of connection excitation unit shield 63 and cooler shield 62.It is filled in excitation It sets between shield 63 and the exciter side support of bearing 53, is provided with connection excitation unit shield 63 and the exciter side support of bearing 53 Excitation unit outlet conduit 65.
Frame 51, cooler shield 62 and excitation unit shield 63 form confined space 70.Confined space 70 has frame Frame central portion 71, cooler guard section 72, fan inlet portion 73,74 and excitation unit guard section 75.Frame central portion 71 is It is provided with by the region of partition board 51d and partition board 51f the main rotor iron core 12 and main stator 20 clamped.Fan inlet portion 73 is internal Part between fan 15a and partition board 51d and connection side bearing 41.Frame inlet portion 74 is exciter side bearing 42 and internal wind Fan the part between 15b and partition board 51f.
The longitudinal sectional view of lower-left a quarter when Fig. 3 is from the III-III lines of Fig. 1.Fig. 4 is the IV-IV of Fig. 3 Longitudinal sectional view when line is observed.Excitation unit shaft 11a is equipped with supporting member 115, which also referred to as keeps Ring.Supporting member 115 be center be formed with through hole to the disk-shaped of the Directional Extension perpendicular to main shaft.Supporting member 115 are formed with the supporting member opening 115a for being separated from each other interval in the circumferential.
Supporting member 115 is provided with multiple rotating rectifiers 110, is separated from each other interval in the circumferential.Each rotating rectifier 110 have rectifier cell portion 111, radiating part 112, linking part 113 and fastening part 114.Each two rotating rectifiers 110 with The mode for clipping supporting member 115 is configured at major axes orientation.Radiating part 112 is configured at outside near diameter in rotating rectifier 110 Side penetrates through supporting member 115 along major axes orientation.Each two rotating rectifiers 110 share the same radiating part 112, rectifier cell Portion 111 is connected in each side of supporting member 115 with radiating part 113.
It is configured with rectifier cell portion in the position opposite with supporting member opening 115a of the radially inner side of radiating part 112 111.The heat generated by rectifier cell portion 111 is transferred to radiating part 112, and is transferred to cooling gas from the surface of radiating part 112 Body is diffused.Fastening part 114 is configured near radially inner side in rotating rectifier 110, linking part 113 is attached at fastening part Between 114 and rectifier cell portion 111.
Radiating part 112 has planar section.The planar section of each radiating part 112 is equipped with stirring wing 118.Stirring wing 118 It is installed in a manner of there is gradient relative to radial direction.Inclined direction has the rotation side relative to supporting member 115 To forward end is advanced, the relationship that phase postpones.
In the present embodiment with above structure, during brushless rotary motor 200 operates, main shaft 11 revolves Turn.As a result, so that internal fan 15a, 15b rotate, to drive the cooling gas in confined space 70.Cooling gas The each section of body in confined space 70 is recycled.That is, cooling is opened from frame central portion 71 via cooler entrance with gas Mouth 51a flows into cooler guard section 72.After being cooled in cooler 61 in cooler guard section 72, a part is via cold But device exit opening 51b flows into fan inlet portion 73, then flows into frame central portion 71.Remainder is opened via cooler outlet Mouth 51c flows into fan inlet portion 74, then flows into frame central portion 71.
With from cooler guard section 72 to the inflow in fan inlet portion 74 mutually concurrently there are via excitation unit shield The flow path in portion 75.That is, after being cooled in cooler 61 in cooler guard section 72, pass through excitation unit inlet duct 64 Excitation unit guard section 75 is flowed into, then flows into fan inlet portion 74 via excitation unit outlet conduit 65.
The cooling of excitation unit guard section 75 cools down excitation unit 100 with gas.In Fig. 1, with relatively close The i.e. excitation unit entrance in outlet that state is shown provided with towards the excitation unit inlet duct 64 of excitation unit guard section 75 is opened The position of mouthful 64a and the entrance i.e. excitation for being provided with the excitation unit outlet conduit 65 derived from the excitation unit guard section 75 The position of device exit opening 65a.If possible, it would be desirable that excitation unit entrance opening 64a and excitation unit exit opening 65a Excitation unit 100 is clamped each other, such as positioned at opposite side.That is, it is desirable to flow into the cooling gas of excitation unit guard section 75 All flows each contribute to the cooling of excitation unit 100.
However, due to the limitation etc. in configuration, it is provided with the position of excitation unit entrance opening 64a and is provided with excitation dress The position for setting exit opening 65a is also not limited to be located at opposite side each other.In addition, even if being configured to opposite side, under normal circumstances, It might not also be both contributed in excitation unit guard section 75 by whole flows of the cooling gas of magnetizing exciter guard section 75 Excitation unit 100 cooling.
On the other hand, in the present embodiment, since the radiating part 112 in rotating rectifier 110 is provided with stirring wing 118, the thus cooling in excitation unit guard section 75 is stirred with gas.Its result makes cold in excitation unit guard section 75 But the equalizing temperature for using gas, to which rotating rectifier 110 waits part to be reduced as the temperature of the part of high temperature.
According to the relationship of the setting angle of stirring wing 118 and direction of rotation, from the direction of excitation unit shaft 11a When, it is cooling to be driven to radial outside with gas, to generate radial flowing around rotating rectifier 110.That is, excitation The flow velocity of cooling gas around device 100 becomes larger, other outer surfaces in excitation unit 100 other than radiating part 112 Pyroconductivity rise.Its result promotes the cooling effect of excitation unit 100.
As described above, in the present embodiment, can press down in the brushless rotary motor 200 with rotating rectifier 110 The influence brought to the configuration of rotating rectifier 110 is made, while ensuring the cooling performance of excitation unit.
As described above, embodiments of the present invention are illustrated, but embodiment is intended only as example and presents, no It is intended to limit the range of invention.For example, in embodiment, show according to the relationship with direction of rotation, stirring wing 118 is arranged Setting angle, the case where being driven to radial outside with gas will be cooled down, but it is not limited to this.Opposite can also be that diameter is inside Side.Alternatively, using the stirring wing 118 of the component with major axes orientation in driving direction, can also obtain to excitation unit guard section The effect being stirred in 75.
In addition it is also possible to which the direction of stirring wing 118 and shape are determined as to make it further to excitation unit guard section 75 Interior cooling is with gas by being driven.That is, in Fig. 1, rotating rectifier 110 by cooling gas to radial drive, It is pressed into excitation unit exit opening 65a with gas to cool down, thus can get makes from excitation unit exit opening 65a's The cooling effect for accelerating outflow with gas.Wish to be determined as playing to greatest extent by the direction of stirring wing 118 and shape State effect.
Also, these embodiments can be implemented by various other ways, in the range of not departing from invention main idea, It can carry out various omissions, displacement, change.
These embodiments and modifications thereof are all contained in invention scope and main idea, are equally also contained in claims In invention and its equivalency range recorded in range.
Label declaration
10 main rotors, 11 main shafts, 11a excitation units shaft, 12 main shaft iron cores, 15a, 15b internal fan, 20 masters are fixed Son, 21 main stator iron cores, 22 main stator coils, 41 connection side bearings, 42 exciter side bearings, 51 frames, 51a cooler entrances Opening, 51b, 51c cooler outlet opening, 51d, 51f partition board, 52 connection side bearing holders, the 53 exciter side supports of bearing, 61 Cooler, 62 cooler shields, 63 excitation unit shields, 64 excitation unit inlet ducts, 64a excitation units entrance opening, 65 Excitation unit outlet conduit, 65a excitation units exit opening, 70 confined spaces, 71 frame central portions, 72 cooler guard sections, 73,74 fan inlet portions, 75 excitation unit guard sections, 100 excitation units, 110 rotating rectifiers, 111 rectifier cell portions, 112 Radiating part, 113 linking parts, 114 fastening parts, 115 supporting members, 115a supporting members opening, 118 stirring wings, 120 exciters, 121 exciter rotors, 121a exciter rotors coil, 122 exciter stators, 200 brushless rotary motors.

Claims (2)

1. a kind of brushless rotary motor, which is characterized in that including:
Main rotor, which, which has, is pivotally supported in a manner of it can be rotated around main shaft and is turned along the master that major axes orientation extends Axis and the main rotor iron core for being fixed on the radial outside of the main shaft and extending along major axes orientation;
Main stator, the main stator have configuration in the radial outside of the main rotor iron core and along the main stator of major axes orientation extension Iron core and the main stator coil for being wound in the main stator iron core;
Excitation unit, the excitation unit have with the major axes orientation end of the main shaft is combined and extends along major axes orientation Excitation unit shaft, the rotating rectifier and exciter rotated together with the excitation unit shaft, the exciter have with The excitation unit shaft rotating excitation machine rotor and is configured and is fixed in a manner of opposite with the exciter rotor together It is supported on the exciter stator of the radial outside of the exciter rotor;
Frame, the frame store the main rotor iron core and the main stator;
Cooler, the cooler have cooling tube, the cooling tube by the frame the main stator and the main rotor Iron core carries out cooling recyclegas as the outer cooled side liquid of pipe, using the extraneous air from outside as cold side in pipe Fluid carries out heat exchange;
Cooler shield, the cooler shield are installed on the top of the frame, and confined space is constituted together with the frame, and Include the cooler in inside, by cooler entrance opening for being flowed into out of described frame and for flowing out Cooler outlet opening in the frame is connected with the frame;
Excitation unit shield, the excitation unit shield include the excitation unit in inside, with the cooler shield and institute Frame is stated to be connected;And
Internal fan, the internal fan are installed on the main shaft, and the circulation of fluid is made to be recycled in the confined space,
The rotating rectifier has the disk-shaped supporting member for being installed on the excitation unit shaft and passes through in the axial direction The radiating part of the supporting member is worn,
The radiating part is provided with the stirring wing being stirred to the recyclegas in the excitation unit shield.
2. brushless rotary motor as described in claim 1, which is characterized in that
The supporting member extends radially,
The rotating rectifier is multiple, is installed on the supporting member, interval is configured in the circumferential each other, each The rotating rectifier have rectifier cell portion and radiating part, the radiating part substantially be in rectangular shape, with the main shaft Perpendicular side is upwardly formed radiating surface,
The stirring wing is installed on the radiating surface.
CN201510527891.0A 2014-09-01 2015-08-25 Brushless rotary motor Active CN105391262B (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP2014-177528 2014-09-01
JP2014177528A JP6054348B2 (en) 2014-09-01 2014-09-01 Brushless rotating electric machine

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CN105391262A CN105391262A (en) 2016-03-09
CN105391262B true CN105391262B (en) 2018-10-26

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Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6336503B2 (en) * 2016-03-24 2018-06-06 東芝三菱電機産業システム株式会社 Brushless rotating electric machine
JP2017200354A (en) * 2016-04-28 2017-11-02 東芝三菱電機産業システム株式会社 Brushless rotary electric machine
JP2020058165A (en) * 2018-10-03 2020-04-09 東芝三菱電機産業システム株式会社 Brushless rotary electric machine
JP2020065343A (en) * 2018-10-16 2020-04-23 東芝三菱電機産業システム株式会社 Brushless rotary electric machine
JP2020072595A (en) * 2018-11-01 2020-05-07 東芝三菱電機産業システム株式会社 Brushless rotating electric machine and exciting device cooling promotion structure

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3829725A (en) * 1973-02-21 1974-08-13 Westinghouse Electric Corp Rectifier assembly for brushless excitation systems
CN101227129B (en) * 2007-10-08 2011-09-07 南阳防爆集团有限公司 High-capacity non-salient pole nest plate type synchronous generator

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS52153804U (en) * 1976-05-18 1977-11-22
JPS53131411A (en) * 1977-04-22 1978-11-16 Hitachi Ltd Brushless electric rotary machinery
JPS56164686U (en) * 1980-05-12 1981-12-07
JPS5783148A (en) * 1980-11-11 1982-05-24 Toshiba Corp Rotary rectifier for brushless synchronous machine
JPS62118739A (en) * 1985-11-15 1987-05-30 Toshiba Corp Brushless rotary electric machine
JP2001086716A (en) * 1999-09-14 2001-03-30 Fuji Electric Co Ltd Synchronous machine device

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3829725A (en) * 1973-02-21 1974-08-13 Westinghouse Electric Corp Rectifier assembly for brushless excitation systems
CN101227129B (en) * 2007-10-08 2011-09-07 南阳防爆集团有限公司 High-capacity non-salient pole nest plate type synchronous generator

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CN105391262A (en) 2016-03-09
JP2016052221A (en) 2016-04-11
JP6054348B2 (en) 2016-12-27

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