CN103840573B - Stator seal structure of switched reluctance motor - Google Patents
Stator seal structure of switched reluctance motor Download PDFInfo
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- CN103840573B CN103840573B CN201410127622.0A CN201410127622A CN103840573B CN 103840573 B CN103840573 B CN 103840573B CN 201410127622 A CN201410127622 A CN 201410127622A CN 103840573 B CN103840573 B CN 103840573B
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Abstract
The invention discloses a stator seal structure of a switched reluctance motor. The stator seal structure of the switched reluctance motor comprises a stator core, a winding arranged around the inner circumference of the stator core, a shell body covered outside the stator core, and a connecting cylinder, wherein the connecting cylinder is connected with the stator core and the shell body in the axial direction, the connecting cylinder is connected with the winding and the shell body in the axial direction, the stator core, the connecting cylinder and the shell body are surrounded to form a sealed cavity, the sealed cavity is filled with an evaporative cooling fluid in a sealed mode, and the inner wall of the sealed cavity comprises the inner wall of the stator core and the inner wall of the connecting cylinder. By the adoption of the structure, the inner wall of the stator core is not sealed, so that the inner wall of the stator core is part of the inner wall of the sealed cavity. Compared with the prior art, the space between the inner wall of the stator core and the outer surface of a rotor is not occupied, and the inner surface of the stator core and the outer surface of the rotor can still keep a small space. The stator seal structure can not only reduce vibration and noise, but also avoid the increase of leakage flux, and make sure the working stability of the switched reluctance motor.
Description
Technical field
The present invention relates to technical field of motors, more particularly to a kind of stator structure of switched reluctance machines.
Background technology
Electric automobile is that the automobile for driving is made of the complete petroleum replacing class A fuel A of electric power, at the aspect such as environmental protection, cleaning, energy-conservation
In occupation of absolute advantage.The motor of electric automobile mainly has direct current generator, asynchronous machine, permanent magnetic brushless and switch
Reluctance motor etc..The advantages of switched reluctance machines are with simple structure, low cost, strong applicable ability, speed-regulating range width becomes each drive
The contenders of dynamic system.
As shown in figure 1, the figure is the structure principle chart of prior art breaker in middle reluctance motor.When the electric current of A phase windings 2 '
When controlling switch SI and S2 are closed, A phases are powered, while B phases, C phase no powers, A phases excitation produces magnetic field, because the magnetic flux of motor it is total
Be along the minimum path closure of magnetic resistance, and when the dead in line of axis and the magnetic pole a of rotor 7 ' of A phase magnetic poles magnetic circuit magnetic resistance most
It is little, therefore the distortion magnetic line of force generates tangential pulling force, it is intended to make a-a' overlap with A-A', finally rotate to a-a' and overlap with A-A'
Position stop operating.Subsequently to make motor continuously rotate, it is necessary to make B phases be powered, while A phases and C phase power-off, now electric
Magnetic field in machine becomes the magnetic field with B phase magnetic poles as axis, and rotor 7 ' may proceed to be rotated up being completely superposed with B-B'.
Subsequently it is powered to C phases, while A phases and B phase power-off, now the magnetic field in motor becomes the magnetic field with C phase magnetic poles as axis, electricity
Till machine rotor 7 ' may proceed to be rotated up being completely superposed with C-C'.Such iterative cycles, as long as threephase stator winding 2 ' presses A-
The order of B-C-A ... is powered successively, the rotor 7 ' of motor will around the shaft 8 ' center line rotate in the same direction always.
The electromagnetic torque of switched reluctance machines generation can be seen that unlike traditional AC DC electric by the above-mentioned course of work
The electromagnetic torque of machine is stable, but pulsation property, and corresponding magnetic pull does not only have tangential, also radial direction, wherein
Pull motor rotation is the tangential component of magnetic pull, because of its property of pulsing, causes unstable motor operation, generation deformation and shakes
It is dynamic, and then produce serious noise.The radial component of magnetic pull can become with the position of rotor 7 ' and the electric current of stator winding 2 '
Change, consequently leads to the deformation and vibration of motor stator core 1 ', more serious noise is generated in turn.
For the problems referred to above, as shown in Fig. 2 gradually have developed transpiration-cooled technology.This technology is will be whole fixed
Son is entirely sealed in a cavity, injection low boiling, high insulation, incombustible evaporative cooling liquid 6 ' in the cavity.Motor is transported
During row, winding 2 ', stator core 1 ' and other structures part produce amount of heat due to various losses, make to be filled in it
The temperature of evaporative cooling liquid 6 ' of surrounding is raised, until it reaches the saturation temperature of the liquid medium corresponding with the pressure in cavity,
Come to life, so absorb heat vaporization, in air-liquid two-phase state, be sufficiently cooled heat generating components, but because of boiling heat transfer during
The temperature of boiling working medium is substantially distributed near saturation temperature point, and each stator position Temperature Distribution for soaking medium is more equal
Even, especially stator end is without local hot spot.The steam coolant of air-liquid two-phase state, its density is less than liquid medium, produces
Capture power and upwards buoyance lift runs into the condenser 9 ' at top, heat is passed to and is condensed into liquid after the condensed water in it and is dropped back to again
Original place, has been achieved in that self-loopa under normal temperature, noiseless evaporation cooling.
Because stator is the critical piece that sends vibration and noise, and stator is immersed in the middle of the liquid of insulation, the liquid
Great frictional resistance is formed to any movement tendency of stator, also with regard to the vibration of damping vibration attenuation stator, in addition also can be in prevention sound
The propagation of sound, therefore vibration damping, noise reduction are obvious.
As shown in Fig. 2 above-mentioned evaporation cooling technique is the inner surface for being close to stator core 1 ' with a sleeve 4 ', the set
4 ' two ends of cylinder are connected with the housing 3 ' of switched reluctance machines, it would be desirable to which the stator of cooling is overall (including all of stator core
1 ' with winding 2 ') be all surrounded gets up, and forms a seal cavity, and evaporative cooling liquid 6 ' is then injected in seal cavity, with
Evaporative cooling liquid 6 ' is set to soak stator core 1 ' and winding 2 '.As shown in Figure 3 and Figure 4, Fig. 3, Fig. 4 are respectively in Fig. 2
The main view profile of sealing drum, side cutaway view, the sleeve 4 ' is the cylindrical integral sleeve 4 ' of both ends open, so,
Space (being referred to as " air gap " in Electrical Motor) between stator and rotor 7 ' sufficiently large must can put down this set
4 ' (typically requiring that air gap at least wants 3mm) of cylinder, and this structural principle is not suitable for switched reluctance machines.Because, switching magnetic-resistance
Motor is the electromagnetic torque that motor rotation is produced using main flux (alternatively referred to as magnetic resistance) rate of change of rotor 7 ', such as
Fruit air gap is excessive, can cause that the rate of change of main flux and main flux is reduced and leakage magnetic flux increases, so as to weaken driving torque, also
The increase of noise can be brought.
In view of this, it would be highly desirable to for above-mentioned technical problem, the seal stator of switched reluctance machines of the prior art is tied
Structure does further optimization design so as to can eliminate vibration and the noise of stator core generation, stator and rotor will not be taken again
Between air gap, so as to avoid the increase of leakage field, strengthen the job stability of switched reluctance machines.
The content of the invention
The purpose of the present invention is the seal stator structure for providing a kind of switched reluctance machines, the inwall of the annular seal space of the structure
Including the inwall of stator core, that is, connect housing and the space between the vacant stator of connecting cylinder and rotor of stator core, both
Vibration and the noise of stator core generation are eliminated, the increase of leakage field is avoided again, strengthen the job stability of switched reluctance machines.
To solve above-mentioned technical problem, the present invention provides a kind of seal stator structure of switched reluctance machines, including stator
Iron core, the winding for being surrounded on the stator core inner circumferential, cover in the housing outside the stator core；Also include that axially connection is described
The connecting cylinder of stator core and the housing, the winding and the housing, the connecting cylinder encapsulates the winding, institute from inner side
State stator core, connecting cylinder and housing to surround to form annular seal space, encapsulation evaporative cooling liquid in the annular seal space, the annular seal space
Inwall includes the inwall of the stator core and the inwall of the connecting cylinder.
Using this structure, axial space between connecting cylinder connecting stator iron core and housing, between winding and housing
Axial space, and the inwall of annular seal space includes the inwall of stator core and the inwall of connecting cylinder, therefore, the inwall of stator core does not have
Have encapsulated so that a part of the inwall of stator core as the inwall of annular seal space.Compared with prior art, stator core
Gap between inwall and rotor outer surface does not have occupied, still may be used between the inner surface of stator core and the outer surface of rotor
To keep less gap (typically not greater than 0.4mm).It follows that the seal stator structure can play vibration damping, noise reduction
Effect, can avoid the increase of leakage field again, it is ensured that the job stability of switched reluctance machines.
Preferably, the connecting cylinder includes two barrel structures of identical half, and each half barrel structure includes and the stator iron
The same number of arc pressuring plate of core, each described connecting plate includes press-fiting section and linkage section；It is described to press-fit section and press-fit in described
The inner side of winding, described the groove that section forms the accommodating stator core is press-fited per two neighboring；Multiple linkage section head and the tail
Loop configuration is connected to form, the loop configuration is connected with the housing, two the described of half barrel structure press-fit section docking
Form the connecting cylinder.
Preferably, in the cross section of the switched reluctance machines, the inner surface for press-fiting section and the stator core
Inner surface on same circular arc with the spindle central of the switched reluctance machines as the center of circle.
Preferably, the linkage section head and the tail per the two neighboring connecting plate are docked and form the loop configuration, and each institute
State connecting plate to be connected with the housing.
Preferably, the linkage section head and the tail per the two neighboring connecting plate overlap to form the loop configuration, and each two
The connecting plate is connected in lap with the housing.
Preferably, the two ends of the linkage section of the alternate setting of the loop configuration are provided with kink, the kink
The linkage section being adjacent is overlapped.
Preferably, the connecting plate is provided with the first location hole, and the housing includes end cap and located at the end cap side
Fixed cylinder, the fixed cylinder is provided with the second location hole corresponding with first location hole, the fixed cylinder and the annular
Structure is connected by being plugged in the threaded fastener of first location hole and the second location hole.
Description of the drawings
Fig. 1 is the structure principle chart of switched reluctance machines；
Fig. 2 is the schematic diagram of the seal stator structure of prior art breaker in middle reluctance motor；
Fig. 3, Fig. 4 are respectively main view profile, the side cutaway view of sealing drum in Fig. 2；
Fig. 5 is the schematic diagram of the seal stator structure of switched reluctance machines provided by the present invention；
Fig. 6 is the viewgraph of cross-section of seal stator structure shown in Fig. 5；
Fig. 7 is a kind of stereogram of specific embodiment of half barrel structure of connecting cylinder in Fig. 6；
Fig. 8 is the structural representation of connecting plate in Fig. 7；
Fig. 9 is the stereogram of another kind of specific embodiment of half barrel structure of connecting cylinder in Fig. 6；
Figure 10, Figure 11 are the front view of the housing of switched reluctance machines provided by the present invention, side view.
Wherein, the corresponding relation between the reference and component names in Fig. 1 to Fig. 4 is：
Stator core 1 '；Winding 2 '；Housing 3 '；Sleeve 4 '；Evaporative cooling liquid 6 '；Rotor 7 '；Rotating shaft 8 '；Condenser 9 '；
The corresponding relation between reference and component names in Fig. 5 to Figure 11 is：
Stator core 1；
Winding 2；
Housing 3；End cap 31；Fixed cylinder 32；Second location hole 321；
Connecting cylinder 4；Half barrel structure 4a；Connecting plate 41；Press-fit section 411；Linkage section 412；First location hole 4121；Kink
4122；Groove 42；
Annular seal space 5；Evaporative cooling liquid 6；Rotor core 7；Rotating shaft 8；Condenser 9.
Specific embodiment
The core of the present invention is the seal stator structure for providing a kind of switched reluctance machines, and the structure is not by stator core
Inwall sealed, can eliminate stator core generation vibration and noise, the gas between stator and rotor will not be taken again
Gap, so as to avoid the increase of leakage field, strengthens the job stability of switched reluctance machines.
In order that those skilled in the art more fully understands technical scheme, it is below in conjunction with the accompanying drawings and concrete real
The present invention is described in further detail to apply example.
It should be noted that the herein presented noun of locality " axial direction " refers to what the axis of the main shaft for installing rotor extended
The direction that left and right extends in direction, i.e. Fig. 5；The noun of locality " outward " refers to what is radially outward spread by the spindle central axis of motor
From the center of circle to the direction of external diffusion in direction, i.e. Fig. 6；The noun of locality " interior " is then contrary.It should be appreciated that these nouns of locality are with explanation
Set up on the basis of book accompanying drawing, their appearance should not affect protection scope of the present invention.
Refer to the schematic diagram of Fig. 5 and the seal stator structure that Fig. 6, Fig. 5 are switched reluctance machines provided by the present invention；Figure
6 is the viewgraph of cross-section of seal stator structure shown in Fig. 5.
In a kind of specific embodiment, as shown in Figure 5 and Figure 6, the present invention provides a kind of stator of switched reluctance machines
Sealing structure, including stator core 1 and the winding 2 of the inner circumferential of stator core 1 is surrounded on, and cover in the housing outside stator core 1
3, also including axial connecting stator iron core 1 and the connecting cylinder 4 of housing 3, winding 2 and housing 3, connecting cylinder 4 encapsulates winding from inner side
2, stator core 1, connecting cylinder 4 and housing 3 are surrounded and form annular seal space 5, encapsulation evaporative cooling liquid 6 in annular seal space 5, annular seal space 5
Inwall includes the inwall of stator core 1 and the inwall of connecting cylinder 4.The rotor structure of above-mentioned switched reluctance machines includes rotating shaft 8, connects
The rotor 7 being connected in rotating shaft 8, between stator core 1 and rotor 7 gap is provided with.
Using this structure, the axial space, winding 2 between the connecting stator iron core 1 of connecting cylinder 4 and housing 3 and housing 3 it
Between axial space, and the inwall and the inwall of connecting cylinder 4 of the inwall of annular seal space 5 including stator core 1, therefore, stator core 1
Inwall it is not encapsulated so that a part of the inwall of stator core 1 as the inwall of annular seal space 5.Compared with prior art,
Gap between the inwall and the outer surface of rotor 7 of stator core 1 does not have occupied, the inner surface of stator core 1 and rotor 7 it is outer
Still less gap (typically not greater than 0.4mm) can be kept between surface.It follows that the seal stator structure can rise
To vibration damping, the effect of noise reduction, the increase of leakage field can be avoided again, it is ensured that the job stability of switched reluctance machines.
Refer to Fig. 7 and the stereogram that Fig. 8, Fig. 7 are a kind of specific embodiment of connecting cylinder 4 in Fig. 6；Fig. 8 is in Fig. 7
The structural representation of connecting plate 41.
In specific scheme, as shown in Figure 7 and Figure 8, above-mentioned connecting cylinder 4 includes two barrel structure 4a of identical half, each
Half barrel structure 4a includes and the same number of arc pressuring plate 41 of stator core 1 that each connecting plate 41 includes press-fiting section 411 and connects
Connect section 412；Press-fit section 411 to press-fit in the inner side of winding 2, per two neighboring the groove that section 411 forms accommodating stator core 1 is press-fited
42；Multiple linkage sections 412 join end to end to form loop configuration, and loop configuration is connected with housing 3, and two and half barrel structure 4a's press-fits
The docking of section 411 forms connecting cylinder 4.
Using this structure, in installation process, by two and half barrel structure 4a respectively from the two ends of stator core 1 vertically to
Middle part inserting, so that each arc pressuring plate 41 press-fits the inner side that section 411 is fitted in winding 2, two and half barrel structure 4a docking
Connecting cylinder 4 is formed, then the linkage section 412 of connecting plate 41 is connected with housing 3, the encapsulation of seal stator structure is finally completed again.
So, arc pressuring plate 41 press-fit section 411 play a part of seal winding 2, per it is two neighboring press-fit section 411 it
Between formed groove 42 then be used for house stator core 1, the connecting cylinder 4 that the linkage section 412 of arc pressuring plate 41 is connected into is located at
In axial space of the end of stator core 1 with housing 3, winding 2 with housing 3, play a part of axially connection.The company of this structure
Connecing cylinder 4 can simply, easily realize that stator core 1 is connected with the axial direction of housing 3, winding 2 is connected with the axial direction of housing 3.
It should be noted that above-mentioned connecting cylinder 4 and not only limit include two and half cylindrical structures, one can also be set to
Body formula structure, is inserted connecting cylinder 4 from the side of stator core 1 during installation.
In further scheme, as shown in fig. 6, in the cross section of switched reluctance machines, press-fit the inner surface of section 411 with
The inner surface of stator core 1 is on the same circular arc with the center of rotating shaft 8 of switched reluctance machines as the center of circle.
Because the inner surface for press-fiting section 411 and stator core 1 of connecting plate 41 is collectively forming the inner surface of annular seal space 5, adopt
With said structure so that the distance at inwall to the center of rotating shaft 8 of whole annular seal space 5 is identical, is easy to the carrying out of follow-up encapsulation work,
Also so that the symmetrical configuration of switched reluctance machines, further reduces vibration and noise.It is located in stator core 1 with section 411 is press-fited
The sealed stator structure of outer side surface is compared, and the structure can make the volume in annular seal space 5 maximum, cold more to house evaporation
But liquid 6, further reduce vibration and the noise of switched reluctance machines.
The concrete connected mode of connecting cylinder 4 can also be further set.
In a kind of specific embodiment, the above-mentioned head and the tail docking of linkage section 412 per two neighboring connecting plate 41 forms ring
Shape structure, and each connecting plate 41 is connected with housing 3.
Using this structure so that the simple structure of connecting cylinder 4, symmetrical, installation, the disassembling section side of each connecting plate 41
Just.
It is contemplated that above-mentioned connecting cylinder 4 and not only limiting said structure.
In another kind of specific embodiment, as shown in figure 9, Fig. 9 is another kind of specific embodiment party of connecting cylinder 4 in Fig. 6
The stereogram of formula, the head and the tail of linkage section 412 per two neighboring connecting plate 41 overlap to form loop configuration, and each two connecting plate 41
It is connected with housing 3 in lap.Using this structure, housing 3 is connected with multiple connecting plates 41 simultaneously, and per two neighboring company
Also connect between fishplate bar 41, the connection reliable rows between connecting cylinder 4 and housing 3 can be strengthened.
In specific scheme, as shown in figure 9, alternate setting linkage section 412 (such as in six connecting plates 41 first,
3rd, five) two ends be provided with outside kink 4122, the connecting plate 41 of remaining alternate setting is (such as in six connecting plates 41
Second, four, six) it is normal arrange, the linkage section 412 that kink 4122 is adjacent is overlapped.
It is contemplated that the mode that overlaps of two neighboring connecting plate 41 and not only limit that this is a kind of, for example, it is also possible to will be every
One end of linkage section 412 of individual arc pressuring plate 41 arranges above-mentioned kink 4122, and the other end is normally arranged, so that per two neighboring
In connecting plate 41, the one end of a connecting plate 41 with kink 4122 is not provided with the another of kink with another connecting plate 41
End overlaps, and is overlapped with forming the two head and the tail.
The concrete connected mode of above-mentioned connecting cylinder 4 and housing 3 can also be further set.
In another kind of specific embodiment, as shown in Figure 10 and Figure 11, Figure 10, Figure 11 are switch magnetic provided by the present invention
Front view, the side view of the housing of resistance motor, can be provided with the first location hole 4121 on above-mentioned connecting plate 41, housing 3 includes end
Lid 31 and the fixed cylinder 32 located at the side of end cap 31, fixed cylinder 32 is provided with and corresponding second location hole of the first location hole 4121
321, fixed cylinder 32 and loop configuration are connected by being plugged in the threaded fastener of the first location hole 4121 and the second location hole 321
Connect.
Using this structure, the connection of loop configuration and the connecting cylinder 4 of housing 3, and the two can be simply, easily realized
Connection reliability it is stronger.It is contemplated that housing 3 is with loop configuration and not only limits and is connected using threaded fastener, can also adopt
Connect in other ways, for example, the annular groove of loop configuration cooperation can be arranged in the fixed cylinder 32 of housing 3.Work as loop configuration
Each connecting plate 41 side press-fit in the inner side of winding 2, opposite side formed loop configuration after, loop configuration interference can be matched somebody with somebody
Close with the annular groove, equally can also realize being stably connected with for the two.
A kind of seal stator structure of switched reluctance machines provided by the present invention is described in detail above.Herein
In apply specific case the principle and embodiment of the present invention be set forth, the explanation of above example is only intended to side
Assistant solves the method for the present invention and its core concept.It should be pointed out that for those skilled in the art, not
On the premise of departing from the principle of the invention, some improvement and modification can also be carried out to the present invention, these are improved and modification also falls into
In the protection domain of the claims in the present invention.
Claims (6)
1. the seal stator structure of a kind of switched reluctance machines, including stator core (1), it is surrounded in the stator core (1)
The winding (2) in week, covers in the stator core (1) housing (3) outward；Characterized in that, also including the axially connection stator
The connecting cylinder (4) of iron core (1) and the housing (3), the winding (2) and the housing (3), the connecting cylinder (4) is from inner side
The winding (2) is encapsulated, the stator core (1), connecting cylinder (4) and housing (3) are surrounded and form annular seal space (5), the sealing
Evaporative cooling liquid (6) is encapsulated in chamber, the inwall of the annular seal space (5) includes the inwall of the stator core (1) and the connection
The inwall of cylinder (4)；The connecting cylinder (4) includes two barrel structure of identicals half (4a),
Each half barrel structure (4a) includes and the same number of arc pressuring plate (41) of the stator core (1), each described company
Fishplate bar (41) is including press-fiting section (411) and linkage section (412)；It is described to press-fit section (411) and press-fit in the inner side of the winding (2),
Per the two neighboring groove (42) for press-fiting the accommodating stator core (1) of section (411) formation；Multiple linkage sections
(412) join end to end to form loop configuration, the loop configuration is connected with the housing (3),
The described of two half barrel structures (4a) press-fits section (411) docking and forms the connecting cylinder (4).
2. the seal stator structure of switched reluctance machines according to claim 1, it is characterised in that in the switching magnetic-resistance
In the cross section of motor, the inner surface for press-fiting section (411) is in the switch with the inner surface of the stator core (1)
Rotating shaft (8) center of reluctance motor is on the same circular arc in the center of circle.
3. the seal stator structure of switched reluctance machines according to claim 2, it is characterised in that per two neighboring described
Linkage section (412) the head and the tail docking of connecting plate (41) forms the loop configuration, and each described connecting plate (41) with it is described
Housing (3) connects.
4. the seal stator structure of switched reluctance machines according to claim 2, it is characterised in that per two neighboring described
The linkage section (412) of connecting plate (41) overlaps to form from beginning to end the loop configuration, and connecting plate described in each two (41) is being overlapped
Part is connected with the housing (3).
5. the seal stator structure of switched reluctance machines according to claim 4, it is characterised in that the loop configuration
The two ends of the linkage section (412) of alternate setting are provided with kink (4122), the institute that the kink (4122) is adjacent
State linkage section (412) overlap.
6. the seal stator structure of the switched reluctance machines according to any one of claim 1-5, it is characterised in that the company
Fishplate bar (41) is provided with the first location hole (4121), and the housing (3) is including end cap (31) and located at the end cap (31) side
Fixed cylinder (32), the fixed cylinder (32) is provided with the second location hole (321) corresponding with first location hole (4121), institute
Fixed cylinder (32) and the loop configuration are stated by being plugged in the spiral shell of first location hole (4121) and the second location hole (321)
Line securing member connects.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410127622.0A CN103840573B (en) | 2014-03-31 | 2014-03-31 | Stator seal structure of switched reluctance motor |
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| CN201410127622.0A CN103840573B (en) | 2014-03-31 | 2014-03-31 | Stator seal structure of switched reluctance motor |
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| CN103840573B true CN103840573B (en) | 2017-04-19 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104578469B (en) * | 2015-01-22 | 2017-11-10 | 北京建筑大学 | A kind of method, apparatus for reducing switched reluctance machines vibration and noise |
| CN105356638A (en) * | 2015-12-02 | 2016-02-24 | 珠海凯邦电机制造有限公司 | Winding protector and have its stator module and motor |
| CN109478828B (en) * | 2016-08-18 | 2020-12-15 | 日本电产株式会社 | Motor with a stator having a stator core |
| CN113394890B (en) * | 2021-06-28 | 2023-04-07 | 威海西立电子有限公司 | Motor stator cooling system and motor |
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|---|---|---|---|---|
| JP3894053B2 (en) * | 2002-06-12 | 2007-03-14 | 日産自動車株式会社 | Motor cooling structure |
| CN103151879A (en) * | 2013-04-03 | 2013-06-12 | 天津市松正电动汽车技术股份有限公司 | Liquid-cooled motor |
| CN203774891U (en) * | 2014-03-31 | 2014-08-13 | 北京建筑大学 | Stator sealing structure of switch magnetic resistance motor |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1241773B1 (en) * | 2001-03-14 | 2012-09-12 | Nissan Motor Co., Ltd. | Rotating electrical machine with air-gap sleeve |
| JP2004023806A (en) * | 2002-06-12 | 2004-01-22 | Nissan Motor Co Ltd | Motor cooling structure |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3894053B2 (en) * | 2002-06-12 | 2007-03-14 | 日産自動車株式会社 | Motor cooling structure |
| CN103151879A (en) * | 2013-04-03 | 2013-06-12 | 天津市松正电动汽车技术股份有限公司 | Liquid-cooled motor |
| CN203774891U (en) * | 2014-03-31 | 2014-08-13 | 北京建筑大学 | Stator sealing structure of switch magnetic resistance motor |
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