CN1205726C - Open type electric motor for driving vehicle - Google Patents
Open type electric motor for driving vehicle Download PDFInfo
- Publication number
- CN1205726C CN1205726C CN 99802906 CN99802906A CN1205726C CN 1205726 C CN1205726 C CN 1205726C CN 99802906 CN99802906 CN 99802906 CN 99802906 A CN99802906 A CN 99802906A CN 1205726 C CN1205726 C CN 1205726C
- Authority
- CN
- China
- Prior art keywords
- aforementioned
- rotor
- fan
- stator
- end frame
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Images
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K9/00—Arrangements for cooling or ventilating
- H02K9/02—Arrangements for cooling or ventilating by ambient air flowing through the machine
- H02K9/04—Arrangements for cooling or ventilating by ambient air flowing through the machine having means for generating a flow of cooling medium
- H02K9/06—Arrangements for cooling or ventilating by ambient air flowing through the machine having means for generating a flow of cooling medium with fans or impellers driven by the machine shaft
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
- H02K5/22—Auxiliary parts of casings not covered by groups H02K5/06-H02K5/20, e.g. shaped to form connection boxes or terminal boxes
- H02K5/225—Terminal boxes or connection arrangements
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K3/00—Details of windings
- H02K3/46—Fastening of windings on the stator or rotor structure
- H02K3/50—Fastening of winding heads, equalising connectors, or connections thereto
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Motor Or Generator Cooling System (AREA)
Abstract
An open type electric motor for driving vehicle capable of extending a maintenance circuit, in the invention comprising a stator frame (1) storing therein a stator (2), a rotor (3) disposed inside the stator (2), and a fan (11) disposed on a rotating shaft (6) of the rotor (3) and being covered at both axial sides thereof by brackets (7 and 8), respectively, wherein a cooling air inlet (13) is disposed in the bracket (7), a first cooling air exhaust port (14) is disposed in the bracket (7) or rotor frame (1), a second cooling air vent port (15) is disposed in the bracket (8) or rotor frame (1), an annular projected part (17) is formed on the bracket (7) or inner periphery of the rotor frame (1) opposedly to the outside diameter of the fan (11), and the opening part of the first exhaust port (14) is disposed between the projected part (17) and the bracket (7).
Description
Technical scope
The present invention relates to open type electric motor for driving vehicle, particularly about being suitable for removing the open type electric motor for driving vehicle of the dust that contains in the cooling air.
Background technology
As the open type electric motor for driving vehicle of prior art, the content of showing in Japanese patent laid-open 6-6958 communique, No. 5000769 communiques of United States Patent (USP) is for known.Plant motor wherein, in the time of in will be, suck outer gas by the filter that is located at air inlet, and remove dust contained in the cooling air as the outer gas inhalation machine of cooling air.Then plant motor, in the time of in will be as the outer gas inhalation machine of cooling air, 2 chambers that separate by the surface plate that is become to have annular aperture by a plurality of circular holes suck outer gas, remove dust contained in the cooling air.
Invention is showed
As open type electric motor for driving vehicle, preceding kind of motor is main flow.But recently, this motor has been proposed various requirements such as prolongation maintenance period [at interval conservative], low noise, wherein In-particular is the highest to prolong the maintenance period cry.For high like this requirement, preceding kind of motor, the dedusting function of filter are just not much of that, are not filtered the dust that device removes and enter in the machine, and it is piled up in machine through long-term operation, for dedusting, must decompose cleaning in per 5,6 years.
Therefore, the inventor then is conceived to as back kind of motor just can removing the open type electric motor for driving vehicle of dust without filter.But motor is planted in the back, owing to will form 2 chambers, it is big that the axial dimension of motor must become; Simultaneously, for dedusting makes complex structureization, also can cause failure rate and increase.Owing to remove the dust that contains in the cooling air, can not save in addition near the chamber of a side in the machine by 2 chambers.If save near the chamber in the machine, in the dust intrusion machine that then contains in the cooling air, it also can accumulate in machine through long-term operation, also must regularly decompose cleaning as preceding kind of motor.
Moreover motor is planted in the back since to the cooling air air inlet to radially vertical direction opening relatively, so the cooling air that enters wants relative airintake direction want right-angle steering.Therefore, the cooling air loss is big, for guaranteeing to cool off the diameter that necessary air quantity must strengthen cooling fan.Noise is significantly increased.
In addition, motor is planted in the back, owing to do not consider the exhaust side of cooling fan fully, has cooled off the direct contact bearing lid of high temperature cooling air in the machine, the problem that has the bearing arrangement temperature that can make exhaust side to rise.
The present invention promptly makes in view of the premises, and one of its representational purpose provides the open type electric motor for driving vehicle of realizing prolonging maintenance period; Two of its purpose is to be provided at does not cause the open type electric motor for driving vehicle with high reliability of realizing prolonging maintenance period under the situation that failure rate increases; Three of its purpose is to provide the cooling effectiveness that can improve cooling air air draft side bearing device, such as suppressing the open type electric motor for driving vehicle that temperature rises.
The open type electric motor for driving vehicle of first invention of the application is made of the bearing arrangement of the rotating shaft of the stator of being located at the rotor frame inboard, the rotor of being located at the stator inboard, supporting rotor, the end frame of being located at the rotor frame end, the fan of being located in the rotating shaft between rotor and bearing arrangement.The end frame has the shape that bloats to the side away from iron core between rotor frame and bearing arrangement; Fan is made of fan mainboard and the fan blade of being located at end frame one side of fan mainboard and be disposed in the space that bloats of end frame.
The open type electric motor for driving vehicle of second invention of the application is made of the bearing arrangement of the rotating shaft of the stator of being located at the rotor frame inboard, the rotor of being located at the stator inboard, supporting rotor, the end frame of being located at the rotor frame end, the fan of being located in the rotating shaft between rotor and bearing arrangement.The end frame by from and the connecting portion of rotor frame roughly vertically to outer circumferential surface section that the side away from iron core stretches, from and the connecting portion of bearing arrangement roughly vertically to inner peripheral surface portion that the side away from iron core stretches and be located at outer circumferential surface section and inner peripheral surface portion between side surface part constituted; Fan by with the parallel part of side surface part of end frame and from parallel portion to the fan mainboard that the rake branch with the connecting portion of rotating shaft constitutes, be located at the end frame side of fan mainboard and the fan blade that is disposed in the space that outer circumferential surface section, inner peripheral surface portion and side surface part by the end frame surrounded is constituted.
The open type electric motor for driving vehicle of the 3rd invention of the application is made of the bearing arrangement of the rotating shaft of the stator of being located at the rotor frame inboard, the rotor of being located at the stator inboard, supporting rotor, the end frame of being located at the rotor frame end, the fan of being located in the rotating shaft between rotor and bearing arrangement.The end frame has the shape that bloats to the side away from iron core between rotor frame and bearing arrangement; Fan is by being constituted to the inclination of end frame fan mainboard that tiltedly is provided with and the fan blade of being located at the end frame side of fan mainboard.
The open type electric motor for driving vehicle of the 4th invention of the application is made of the bearing arrangement of the rotating shaft of the stator of being located at the rotor frame inboard, the rotor of being located at the stator inboard, supporting rotor, the end frame of being located at the rotor frame end, the fan of being located in the rotating shaft between rotor and bearing arrangement.The end frame has the shape that bloats to the side away from iron core between rotor frame and bearing arrangement; Fan is made of fan mainboard and the fan blade of being located at the end frame side of fan mainboard and be disposed in the space that bloats of end frame; Establish the cooling air separating plate at fan mainboard outside diameter.
The open type electric motor for driving vehicle of the 5th invention of the application by the bearing arrangement of the rotating shaft of the stator of being located at the rotor frame inboard, the rotor of being located at the stator inboard, supporting rotor, be located at the rotor frame end the end frame, be located at that the fan in the rotating shaft is constituted between rotor and bearing arrangement.The end frame has the shape that bloats to the side away from iron core between rotor frame and bearing arrangement; Fan is made of fan mainboard and the fan blade that is located at the end frame side of fan mainboard and be disposed in the space that bloats of end frame; Establish the cooling air air inlet at the fan blade internal side diameter, establish the outlet that contains the dust cooling air at the fan blade outside diameter.
The open type electric motor for driving vehicle of the 6th invention of the application by the bearing arrangement of the rotating shaft of the stator of being located at the rotor frame inboard, the rotor of being located at the stator inboard, supporting rotor, be located at the rotor frame end the end frame, be located at that the fan in the rotating shaft is constituted between rotor and bearing arrangement.The end frame has the shape that bloats to the side away from iron core between rotor frame and bearing arrangement; Fan is made of fan mainboard and the fan blade that is located at the end frame side of fan mainboard and be disposed in the space that bloats of end frame; Establish the cooling air air inlet at the fan blade internal side diameter, establish the outlet that contains the dust cooling air, be provided with the outlet of the cooling air that contains sharp dust at the outside diameter of fan at the fan blade outside diameter.
In the open type electric motor for driving vehicle of the 4th invention, separating plate is the annular plate with internal diameter also bigger than the external diameter of fan mainboard.In the open type electric motor for driving vehicle of the 5th or the 6th invention, the distance between fan blade internal side diameter and air inlet is more than 30mm.The number of fan blade number and aforementioned air inlet is the number of the common divisor beyond the mutual not tool 1.In the open type electric motor for driving vehicle in first to the 6th invention, discharge side at cooling air and establish auxiliary blower.The fan mainboard of auxiliary blower carries over the shape of the bearing cap of being located at cooling air discharge side and radially extends.
The open type electric motor for driving vehicle of the 7th invention of the application, the axial both sides of being stopped up the rotor frame of the fan in rotor accommodated stator, to be located at the stator inboard and the rotating shaft of being located at rotor by the end frame form.On a side of end frame, establish the cooling air air inlet, on end frame one side or rotor frame, establish cooling air first exhaust outlet, on the opposing party who holds frame or rotor frame, establish cooling air second exhaust outlet; Relatively forming cyclic lug a side of end frame or the interior Zhou Shangyu fan outside diameter of stator former framework, the peristome of configuration first exhaust outlet between a side of this protuberance and end frame.
The open type electric motor for driving vehicle of the 8th invention of the application, rotor frame taken in stator, be located at the rotor of stator inboard, with the fan of being located on the rotor shaft, and stop up rotor frame between centers both sides by the end frame and form.On a side of end frame, establish the cooling air air inlet, on a side who holds frame or rotor frame, establish cooling air first exhaust outlet, on the opposing party who holds frame or rotor frame, establish cooling air second exhaust outlet; In a side who holds frame or rotor frame, forming the circular protuberance relative on week, the peristome of configuration first exhaust outlet between this protuberance and end frame one side with the outside diameter of fan; Between first exhaust outlet and second air inlet of being located at second exhaust side, establish the ventilation duct that is communicated with them.
Member in the open type electric motor for driving vehicle of the 7th or the 8th invention is the separating mechanism that contains separating plate, and the outer gas that this separating plate is used for sucking from air inlet is separated into and contains outside the dust gas and do not contain gas outside the dust.On end frame one side's outer peripheral face, one first outlet is set.Have recess and a plurality of air inlets are set in a side the central part side of end frame at the inner headed face of recess.
The open type electric motor for driving vehicle of the 9th invention of the application by the bearing arrangement of the stator of being located at the rotor frame inboard, the rotor of being located at the stator inboard, supporting rotor rotating shaft, be located at the rotor frame end the end frame, be located at the fan in the rotating shaft between rotor and bearing arrangement, be used for, be used for that the outer gas in the inhalation machine is discharged the first outer exhaust outlet of machine and constituted the air inlet in the outer gas inhalation machine.The member that extends to internal side diameter is set on the part relative with the fan outside diameter, on than this member part more in the outer part, is provided for simultaneously second exhaust outlet outside the outer gas discharge machine in the inhalation machine.
The open type electric motor for driving vehicle of the tenth invention of the application by the bearing arrangement of the stator of being located at the rotor frame inboard, the rotor of being located at the stator inboard, supporting rotor rotating shaft, be located at the rotor frame end the end frame, be located at the fan in the rotating shaft between rotor and bearing arrangement, be used for, be used for that the outer gas in the inhalation machine is discharged the first outer exhaust outlet of machine and constituted the air inlet in the outer gas inhalation machine.The member that extends to internal side diameter is set on the part relative with the fan outside diameter, on than this member part more in the outer part, is provided for simultaneously the outer gas in the inhalation machine is discharged second exhaust outlet outside the machine and the ventilation duct that is communicated with second exhaust outlet and is located at second air inlet of first exhaust side is set.
Member in the open type electric motor for driving vehicle of the 9th or the tenth invention is the separating mechanism that contains separating plate, and the outer gas that this separating plate is used for sucking from air inlet is separated into outer gas that contains dust and the outer gas that does not contain dust.
Open type electric motor for driving vehicle in the 11 invention of application has stator, be positioned at the rotor of stator inboard, be located at housing that on the rotor shaft 1 or 2 fans, built-in these member ground form, the obstruction housing shaft is to the obstruction component of one-sided or both sides, the part that obstruction component also can the double as housing.Side at obstruction component offers air admission hole or air inlet pipe, offers at least 2 steam vents or blast pipe on obstruction component and even housing, is located at air admission hole or air inlet pipe one side for 1 of steam vent or blast pipe; Other steam vents or blast pipe are positioned at the side with air admission hole or air inlet pipe axial opposed.
The steam vent of air admission hole in the open type electric motor for driving vehicle of the 11 invention or air inlet pipe side or blast pipe are communicated with and walk out second air admission hole or the air inlet pipe that outside is opened in second steam vent or blast pipe one side.
The open type electric motor for driving vehicle of the application's the tenth binomial invention has stator, is located at the rotor of stator inboard, the fan of rotating shaft round between their rotor of housing, rotor shaft, the obstruction component of obstruction housing both sides, a side who is located at obstruction component and stator.On a side of obstruction component, establish air admission hole, on side of obstruction component or housing, establish first steam vent, on the opposing party of obstruction component or housing, establish second steam vent, forms the air stream that roughly directly advances to first steam vent from air admission hole and divide the air that flows to stator and rotor to flow by fan simultaneously.
The open type electric motor for driving vehicle of the 13 invention of the application has stator, is located at the rotor of stator inboard, round they housing, rotor rotating shaft, stop up the housing both sides obstruction component, be located at the fan in the rotating shaft between obstruction component one side and stator and rotor.On a side of obstruction component, establish air admission hole, on side of obstruction component or housing, establish first steam vent, on the opposing party of obstruction component or housing, establish second steam vent; Simultaneously forms the air that roughly directly enters the air stream of first steam vent and be diverted to stator and rotor from air admission hole and flow, and the air stream that roughly directly enters first steam vent is imported into the opposing party of obstruction component and the space between stator and rotor by fan.
The 12 or the open type electric motor for driving vehicle of the 13 invention in, roughly the air stream of straight heading first steam vent contains dust; And divide the air stream that flows to stator and rotor not contain dust.
The open type electric motor for driving vehicle of the 14 invention of the application has stator, is located at the rotor of stator inboard, round the rotor frame of stator and rotor, stop up the rotor frame two ends the end frame, be located at air admission hole on end frame one side, be located at the steam vent of holding on frame the opposing party.Spatial configuration between end frame one side and stator and rotor is with first fan in the cooling air inhalation machine; At the opposing party of end frame and spatial configuration second fan between stator and rotor.
Second fan in the open type electric motor for driving vehicle of the 14 invention be installed on rotating shaft, along with its to radially away from aforementioned installation portion away from rotor.Also can use cowling panel as second fan.
Brief Description Of Drawings
Fig. 1 is the profile of expression as the formation of the open type electric motor for driving vehicle of first embodiment of the invention; Fig. 2 is the outside drawing that the side outward appearance constitutes on the presentation graphs 1; Fig. 3 is the outside drawing that the left side outward appearance of presentation graphs 1 constitutes; Fig. 4 is the outside drawing that the right side outward appearance of presentation graphs 1 constitutes; Fig. 5 is the profile of expression as the formation of the open type electric motor for driving vehicle of second embodiment of the invention; Fig. 6 is the outside drawing that the side outward appearance constitutes on the presentation graphs 5; Fig. 7 is the outside drawing that the left side outward appearance of presentation graphs 5 constitutes; Fig. 8 is the outside drawing that the right side outward appearance of presentation graphs 5 constitutes.
Optimal morphology carries out an invention
Open type electric motor for driving vehicle as first embodiment of the invention is illustrated in Fig. 1～Fig. 4.The open type electric motor for driving vehicle of present embodiment is a three phase induction motor.In the drawings, the 1st, tubular rotor frame (or housing); All within it sides are established cylindric stator core 2.The interior perimembranous of stator core 2 form link up vertically, circumferentially having a plurality of grooves of predetermined distance, taking in stator winding 4.
Interior all sides in stator core 2 stride across the space, on stator core 2 concentric circless rotor core 3 are being set.The peripheral part of rotor core 3 forming continuous vertically, take in rotor winding 5 at a plurality of grooves that circumferentially have predetermined distance and with die casting method, on the central shaft of rotor core 3, be provided with rotating shaft 6, it supported free to rotately by the bearing 9,10 that is located at rotor frame 1 both ends.
Be provided with the looped end frame 7 as obstruction component in a side of rotor frame 1 (cooling air flows into side, in this figure promptly towards the left side of iron core), all within it side fixed bearings bearing arrangement 9.End frame 7 is the shape that bloats to the side away from iron core between rotor frame 1 end and bearing arrangement 9 outer circumferential sides.Particularly it have outer circumferential surface section 7a, the 7b of inner peripheral surface portion, with side surface part 7c.Wherein, outer circumferential surface section 7a is from roughly extending to the opposite side of iron core (or approximate horizontal) vertically with the connecting portion of the end of rotor frame 1; The 7b of inner peripheral surface portion from the connecting portion of the outer circumferential side of bearing arrangement 9 roughly vertically to extending away from a side of iron core (or countershaft 6 tilts slightly mutually, perhaps approximate horizontal); Side surface part 7c combines outer circumferential surface section and inner peripheral surface portion, and approximate vertical is extended.And, be equivalent to hold frame 7 outer circumferential surface section 7a part also can have both by rotor frame 1.
In the rotating shaft 6 of 9 of rotor core 3 and bearing arrangements, be provided with main fan 11.Main fan 11 constitutes by fan mainboard 11a, fan blade 11b, with side plate 11c.Fan mainboard 11a forms along the inner peripheral surface portion of holding frame 7 crooked to extending away from a side of iron core, and along the shape of end frame 7 side surface part to the radial outside extension.In other words, along with from its installation portion to radially away from, it is far away more from rotor core 3.Particularly, it has the parallel portion parallel with end frame 7 side surface part and constitutes from this parallel portion bending and to the rake that rotating shaft 6 connecting portions extend.End frame 7 one sides in the parallel portion of fan mainboard 11a are provided with a plurality of fan blade 11b.End frame 7 one sides at fan blade 11b are established side plate 11c.And, also can replace as side plate 11c by end frame 7.
A plurality of air inlets 13 (or air inlet or air inlet pipe) that are used to suck as the outer gas of cooling air are located at the 7b of inner peripheral surface portion that holds frame 7 with fan blade 11b with roughly being in line configuration, and as shown in Figure 1, it is positioned at the internal side diameter 11d place of fan blade 11b.Separate the above interval of 30mm between air inlet 13 and the fan blade 11b internal side diameter.On the outer circumferential surface section 7a of end frame 7, be provided with one with the fan blade 11b dust outlet 14 that is used to discharge the cooling air that contains dust of straight line configuration (or dust tap or dust discharge pipe) roughly, as shown in Figure 1, it is positioned at the outside diameter 11e of fan blade 11b.The combination of the number of fan blade 11b number and air entry 13 for counting except that (promptly not the having the common divisor 1) of not opening mutually.The axial location of bearing arrangement 9 is positioned at than the also close side position unshakable in one's determination in the position of fan blade 11b, or is in same axial position with fan blade 11b.
Outside diameter 11f place at fan mainboard 11a is provided with dust separating plate 17, and it is a kind of separating mechanism, is used to isolate cooling air that contains dust and the cooling air that does not contain dust, simultaneously, the cooling air of separating that contains dust is not flowed in the machine.Here, so-called outside diameter is meant circumferential end side from the fan profile of formation to foreign side that little by little launch.Thereby the separating mechanism of separating plate etc. is not this end self, but the annular protrusions thing that forms facing to this end; As shown in Figure 1, these thrusts are in fan mainboard 11a outside diameter.
Dust separating plate 17 is the ring-type plectanes with internal diameter also bigger than fan mainboard 11a external diameter.And dust separating plate 17 also can be integrally formed with end frame 7.The ventilation cross-sectional area in space is bigger than the ventilation cross-sectional area of dust outlet 14 between the internal diameter of fan mainboard 11a external diameter and dust separating plate 17.
The opposite side of rotor frame 1 (exhaust side of cooling air, in this figure for towards the right side of iron core) be provided with rotor frame 1 integrally formed, as the looped end frame 8 of obstruction component, all within it side fixed bearings bearing arrangement 10.The side of end frame 8 be provided with a plurality of be used for cooler in after cooling air be discharged to exhaust outlet 15 (or steam vent, perhaps blast pipe) outside the machine.Be provided with in exhaust outlet 15 outsides and make the dust can be from the filter part 19 in the exhaust outlet 15 intrusion machines.If according to present embodiment, rotor frame 1 and the situation that end frame 8 constitutes one are illustrated, but rotor frame 1 separates also passable with end frame 8.In addition, end frame 8 also can be held concurrently and is the part of rotor frame 1, promptly also can be the container that opens wide on one side.
End in bearing arrangement 10 1 sides of rotor core 3 is provided with auxiliary blower 12.Auxiliary blower 12 constitutes by fan mainboard 12a, fan blade 12b, with side plate 12c.Fan mainboard 12a forms along the curved shape of the bearing cap 16 of bearing arrangement 10 and carries out bending, and along the shape of end frame 8 to the radial outside extension.In other words, along with radially away from its installation portion away from rotor core 3.Core side at fan mainboard 12a is provided with a plurality of fan blade 12b.Core side at fan blade 12b is provided with side plate 12c.And auxiliary blower 12 also can save side plate 12c.In addition, also can replace auxiliary blower 12 as shield with the fan mainboard 12a that saves fan blade 12b.
Be provided with oil feeding device 20 to bearing arrangement 9 supplying lubricating oils in end frame 7 outsides.Be provided with to the oil feeding device 21 of bearing arrangement 10 supplying lubricating oils in the outside of end frame 8 and be used to detect the speed detector 24 of the rotating speed of rotating shaft 6.Connecting on the end of stator winding 4 side three-phase part ground and to run through rotor frame 1 and to guide lead 23 in the machine into.Lead 23 is used for to stator winding 4 supply capabilities.
Peripheral part at rotor frame 1 is provided with the installation portion 25,26 that is used to be installed on the chassis.In addition, also be provided with the supporting base 27 of the holding wire of the earth connection 28 that is used for support conductors 23, transformer, speed detector 24 at the peripheral part of rotor frame 1.The earth connection 22 that on supporting base 27, is connecting motor.
Bottom illustrates the flowing of cooling air of present embodiment open type electric motor for driving vehicle.Arrow shown in Figure 1 is the flow direction of cooling air, because the rotation of rotating shaft 6, when main fan 11 rotated, the space that fan blade 11b internal side diameter and air inlet are 13 was under the effect of suction force, from the outer gas of air inlet 13 suctions as cooling air.The outer gas that sucks is pushed to hold to the inner face of the outer circumferential surface section of frame 7 by the push-on force of main fan.At this moment, between the outside diameter of fan blade 11b and end frame 7, be separated into 2 part cooling airs in the space by dust separating plate 17.
In separated a part of cooling air, contain dust, flow to the outer circumferential side inner face of end frame 7 and since the revolving force of main fan 11 it make circumferential flow along the outer circumferential side inner face of end frame 7, flow to dust outlet 14 and outside the discharge machine.At this moment, concerning the cooling air that contains dust, 17 one-tenth of dust separating plates the next door, it is not flowed in the machine.
Separated another part cooling air does not contain dust, is pushed to core side by the gap between the outside diameter of dust separating plate 17 internal side diameters and fan mainboard 11a.The cooling air that advances has cooled off the end of stator core 2 with one side of rotor core 3, simultaneously, cool off on one side stator core 2 and 3 of rotor cores the space, with rotor core 3 on a plurality of axial continuous air trunkings 18 of setting, Yi Bian flow to exhaust side.The cooling air that has arrived exhaust side has cooled off the another side end of stator core 2 with rotor core 3, is discharged to outside the machine from exhaust outlet 15.At this moment, rotate,, cause flowing of air in the space of stator core 2 with the another side end of rotor core 3 owing to the rotation of rotating shaft 6 makes auxiliary blower 12.
As first embodiment according to above-mentioned explanation, the cooling air that is pushed by main fan 11 is separated into 2 part cooling airs by dust separating plate 17, promptly is separated into cooling air that contains dust and the cooling air that does not contain dust; The cooling air that contains dust is discharged to outside the machine from dust outlet 14, the cooling air that does not contain dust by dust separating plate 17 internal side diameter and the space between the outside diameter of fan mainboard 11a be pushed in the machine of sending into, thus, in the cooling air cooling machine that does not contain dust, pile up so can prevent the dust that dust enters in the machine and long-term operation causes.Thereby, no longer need regular decomposition cleaning, be expected to prolong maintenance period.
In addition, as complying with first embodiment, owing in the space that is surrounded by end frame 7, main fan 11 and the dust separating plate 17 that on end frame 7 parts relative, is provided with, be separable into cooling air that contains dust and the cooling air that does not contain dust with the outside diameter of the fan mainboard 11a of main fan 11, can be configured for removing the mechanism of dust than existing mechanism more simply, be expected to reduce failure rate.Thereby be expected to improve reliability.
As according to first embodiment, because the ventilation cross-sectional area in the outside diameter of fan mainboard 11a and the space between dust separating plate 17 internal side diameters is bigger than the ventilation cross-sectional area of dust outlet 14, it is big and wind speed is slow to push the air quantity of the cooling air in the machine by above-mentioned space; And the cooling air air quantity of discharging from dust outlet 14 is little and wind speed is fast.Thereby, the cooling air that contains dust in the cooling air cooling machine that can be a large amount of, can be able to improved above-mentioned cooling and dust removing effects with wind speed faster when dust outlet 14 is discharged really.
As complying with first embodiment, because the shape that end frame 7 is formed bloat to a side relative with iron core simultaneously, make the fan mainboard 11a of main fan form the shape that carries over end frame 7, end frame 7 sides at fan mainboard 11a are provided with fan blade 11b, so main fan 11 can be arranged in the rotating shaft 6 between rotor core 3 and the bearing arrangement 9, can shorten its axial length.Thereby, can make the motor volume little in light weight.
As according to first embodiment, the configuration because air inlet 13 and fan blade 11b roughly are in line is so can reduce ventilation loss by the cooling air of air inlet 13 suctions; Even under the situation of the main fan 11 of minor diameter, also can easily guarantee the air quantity of necessary cooling air.Thereby be expected to reduce motor noise.
As according to first embodiment, because the internal side diameter of fan blade 11b and the interval between the air inlet 13 be more than 30mm, so can reduce the noise that is produced in the space between fan blade 11b and the air inlet 13.That is, the noise of fan is the sound of fan cutting-up air, and its generation air density is its reason.Here, as study the noise of main fan 11, the noise of main fan 11, the space between air inlet 13 and the fan blade 11b is that the source takes place noise, due to air density change between part that air inlet 13 is arranged and no air inlet 13 parts.But because the space length between air inlet 13 and the fan blade 11b strengthens, atmospheric density density changes and reduces, and has therefore reduced the noise here.Thereby, owing in first embodiment, kept the significant space length of reduction noise, promptly more than the 30mm, so can improve above-mentioned noise reduction.
As according to first embodiment, the combination of the number of (promptly not the common divisor beyond the tool 1) because that the number of the number of fan blade 11b and air inlet 13 constitutes is indivisible mutually can reduce the level of generation noise in 13 spaces of fan blade 11b and air inlet.For example the air inlet number is 12, the fan blade number is 15 and 17 o'clock, as making up with number 12 and 15, because common divisor also exists 3 except that 1, a week 3 place's fan blade of 120 ° in 360 ° identical with the position (phase place) of air inlet because noise coincidence reinforcement has improved noise level.On the other hand, as combined, owing to the common divisor that does not exist beyond 1 with number 12 and 17.Fully different at all 360 ° of internal fan blades with the position (phase place) of air inlet, overlap the phenomenon of strengthening noise owing to can not produce, so can reduce noise level.
In addition, be Nb in supposition fan blade number, the air inlet number is Ns, and the common divisor of fan blade number and air inlet number is M, and when rotating speed was rpm, the frequency f that noise takes place was
f＝Nb×rpm×M/60(Hz)
Or f=Ns * rpm * M/60 (Hz)
As with 12 and 15 combined, owing to have 1,3 common divisors, so have 12 times, 15 times, 36 times, the noise of 45 overtones bands.On the other hand, as combining with 17 with 12, owing to only having common divisor 1, the noise of 12 times of tools, 17 overtones bands only takes place.Here, certain part constitutes pipe, and pipe range is under the situation of L, and the wavelength of empathizing in this pipe is 4L, 4L/2,4L/3,4L/4 ..., in the combination of 12 and 15 more than noise produces frequency, being easy to generate sympathetic response, noise level raises easily.And produce in the 12 and 17 few combination of frequency at noise, can reduce sympathetic response, so can reduce noise level.Thereby, can further improve above-mentioned noise reduction.
As complying with first embodiment, because the end in bearing arrangement 10 1 sides of rotor core 3 is provided with auxiliary blower 12, form air flows in the space between unshakable in one's determination and end frame 8,, rise so can suppress the temperature of bearing arrangement 10 so the heat of restriction high temperature cooling air is detained this space.
As complying with first embodiment, owing to make the fan mainboard 12a of auxiliary blower 12 form the shape of the bearing cap 16 that carries over bearing arrangement 10, the space that fan mainboard 12a and bearing cap are 16 diminishes, negative pressure increases in the space, the air quantity of the cooling air of Radial Flow can be increased, easier the shedding of heat between fan mainboard 12a and the bearing cap 16 can be made.Thereby the temperature that can further suppress bearing arrangement 10 rises.Simultaneously,, the diameter of main fan 11 is reduced, can further reduce noise owing to increased the cooling air air quantity that radially flows.
As the open type electric motor for driving vehicle of second embodiment of the invention such as Fig. 5～shown in Figure 8.And, give same-sign to the part identical with aforementioned first embodiment, omit its explanation.In the present embodiment, the dust separating plate 17 as one of separating mechanism described in the end frame 7 and first embodiment is made of one, and the connecting portion that is connected with rotor frame 1 of the end frame 7 relative with the outside diameter of fan mainboard 11a is side-prominent to internal diameter.Promptly formed protuberance 7d.And, omitted the side plate of main fan 11, replace the side surface part 7c of end frame 7.
Between the place's air inlet 29 that is provided with on the peripheral part of the dust outlet 14 established on the outer circumferential surface section of end frame 7 and bearing arrangement 10 1 sides of rotor frame 1, be provided with and make the cooling air that contains the dust of discharging from dust outlet 14 feed to unshakable in one's determination and hold the ventilation duct 30 in the space between the frame 8.Even a plurality of outlets 15 of the cooling air after in the cooler are not provided in a side of on the end frame 8, but on the rotor frame peripheral part with air inlet 29 be disposed at be provided with on the same side face a plurality of.
In addition, in the present embodiment, cowling panel 31 is set to replace the auxiliary blower 12 described in first embodiment in the end of bearing arrangement 10 1 sides of rotor core 3.The shape that the cooling air directed radial outside that cowling panel 31 comes in order to flow through air pipe 18 and forming tilts to radial outside from the end of rotor core 3.In other words, along with radially far away more from rotor core 3 away from its installation portion.
As second embodiment according to above explanation, owing between set on the peripheral part of the dust outlet 14 on the outer circumferential surface section that is located at end frame 7 and bearing arrangement 10 1 sides of rotor frame 1 air inlet 29, established ventilation duct 30, be separated into two cooling air with the integrally formed ledge that is used for dirt separation of end frame 7, the cooling air that contains dust the discharge side of cooling air be can be fed to by ventilation duct 30, unshakable in one's determination and the space segment of holding between the frame 8 promptly fed to.If like this, can make the cooling effect of this space segment also better by than flowing also low cooling air cooling iron core that contains dust of the next cooling air temperature that does not contain dust and the space segment between the end frame 8 in the cooler of one side on one side than the effect of first embodiment.Moreover, owing to the air quantity of the cooling air that contains dust than the cooling air that does not contain dust lacks, after the space of having cooled off between unshakable in one's determination and the end frame 8, together drain into outside the machine with the cooling air that does not contain dust by exhaust outlet 15, thereby, be expected on the basis of the effect of first embodiment, cooling effectiveness to be improved a step again.
The possibility of industrial utilization
As according to the present invention, can provide the open type electric motor for driving vehicle that can prolong maintenance period. In addition, can provide and to cause that fault rate increases, can prolong maintenance period, vehicle that reliability is high The driving open type electric motor. Besides, can provide the exhaust side bearing arrangement that can improve cooling air Cooling effect, such as the open type electric motor for driving vehicle that can suppress temperature rise.
Claims (24)
1. open type electric motor for driving vehicle, it is characterized in that, comprise the stator of being located at the rotor frame inboard, be located at the rotor of this stator inboard, support the bearing arrangement of the rotating shaft of this rotor, be located at the end frame of stator former frame ends, be located in the rotating shaft between aforementioned rotor and the aforementioned bearings device and fan with fan mainboard and fan blade, the air inlet that on the part relative, is provided with aforementioned fan blade internal side diameter, the exhaust outlet that on relative part, is provided with aforementioned fan blade outside diameter, the dust separating mechanism that on the part relative, is provided with aforementioned fan mainboard outside diameter, aforementioned end frame bloats to the side away from iron core between stator former framework and aforementioned bearings device; Aforementioned fan blade is located at the aforementioned end frame side of aforementioned fan mainboard and is disposed in the space that aforementioned end frame bloats; The ventilation cross-sectional area in the gap between aforementioned fan mainboard external diameter and aforementioned dust separating mechanism internal diameter is bigger than the ventilation cross-sectional area of aforementioned exhaust outlet.
2. open type electric motor for driving vehicle, it is characterized in that, comprise: the stator of being located at the rotor frame inboard, be located at the rotor of this stator inboard, support the bearing arrangement of the rotating shaft of this rotor, be located at the end frame of stator former frame ends, be located in the rotating shaft between aforementioned rotor and aforementioned bearings device and fan with fan mainboard and fan blade, the air inlet that on the part relative, is provided with the internal side diameter of aforementioned fan blade, the exhaust outlet that on the part relative, is provided with the outside diameter of aforementioned fan blade, the dust separating mechanism that on the part relative, is provided with the outside diameter of aforementioned fan mainboard, aforementioned end frame by from the connecting portion of stator former framework roughly axially to the outer circumferential surface section of extending away from a side of iron core, from and the connecting portion of aforementioned bearings device roughly axially to inner peripheral surface portion that the side away from iron core stretches be located at side surface part formation between this inner peripheral surface portion and aforementioned outer circumferential surface section; Aforementioned fan mainboard is by constituting with aforementioned side surface part parallel portion with from this parallel portion to the sloping portion with the connecting portion of aforementioned rotating shaft; Aforementioned fan blade is located at the aforementioned end frame side of aforementioned fan mainboard and is disposed in the space that is surrounded by aforementioned outer circumferential surface section, aforementioned inner peripheral surface portion and aforementioned side surface part; The ventilation cross-sectional area in the gap between aforementioned fan mainboard external diameter and aforementioned dust separating mechanism internal diameter is bigger than the ventilation cross-sectional area of aforementioned exhaust outlet.
3. open type electric motor for driving vehicle as claimed in claim 1 is characterized in that, aforementioned fan blade is arranged at the aforementioned end frame side of the aforementioned fan mainboard that tilts to be located at aforementioned end frame side.
4. by each open type electric motor for driving vehicle of recording and narrating in the claim 1～3, it is characterized in that the distance between the internal side diameter of aforementioned fan blade and the aforementioned air inlet is more than the 30mm.
5. by each open type electric motor for driving vehicle of recording and narrating in the claim 1～3, it is characterized in that the number of aforementioned fan blade and the number of aforementioned air inlet are the number of the common divisor beyond the mutual not tool 1.
6. by each open type electric motor for driving vehicle of recording and narrating in the claim 1～3, it is characterized in that aforementioned dust separating mechanism is the annular plate member with internal diameter also bigger than aforementioned fan mainboard external diameter.
7. by each open type electric motor for driving vehicle of recording and narrating in the claim 1～3, it is characterized in that, auxiliary blower is set in the discharge side of a cooling air side, that do not contain dust opposite in the axial direction that is positioned at stator frame with above-mentioned end frame.
8. the open type electric motor for driving vehicle of recording and narrating by claim 7 is characterized in that, the fan mainboard of aforementioned auxiliary blower along with the shape of the bearing cap of the discharge side that does not contain the dust cooling air to radially extending.
9. open type electric motor for driving vehicle, rotor frame taking in stator, be located at the rotor of this stator inboard and be located at fan on this rotor shaft, stopping up the axial both sides of this rotor frame by the end frame forms, it is characterized in that, on a side of aforementioned end frame, establish the cooling air air inlet, on side of aforementioned end frame or stator former framework, establish cooling air first exhaust outlet, on aforementioned end frame the opposing party or stator former framework, be provided with cooling air second exhaust outlet; On the interior week of side of aforementioned end frame or stator former framework, form the circular protuberance relative, between a side of this protuberance and aforementioned end frame, dispose the peristome of aforementioned first exhaust outlet with the outside diameter of aforementioned fan; The ventilation cross-sectional area in the gap between the external diameter of aforementioned fan and the internal diameter of aforementioned protuberance is bigger than the ventilation cross-sectional area of above-mentioned first exhaust outlet.
10. open type electric motor for driving vehicle, rotor frame is being taken in stator, is being located at the rotor of this stator inboard, is being located at the fan on this rotor shaft, stop up the axial both sides of this rotor frame by the end frame, it is characterized in that, on a side of aforementioned end frame, establish the cooling air air inlet, on side of aforementioned end frame or stator former framework, establish cooling air first exhaust outlet, on the opposing party of aforementioned end frame or stator former framework, establish cooling air second exhaust outlet; The outside diameter of the aforementioned fan of Zhou Shangyu is relatively forming circular protuberance in side of aforementioned end frame or stator former framework, sets the peristome of first exhaust outlet between a side of this protuberance and aforementioned end frame; Between aforementioned first exhaust outlet and second air inlet of being located at aforementioned second exhaust side, the ventilation duct that is communicated with them is set.
11. by claim 9 or 10 open type electric motor for driving vehicle of being recorded and narrated, it is characterized in that, aforementioned protuberance is the separating mechanism that contains separating plate, and the outer gas that this separating plate is used for sucking from aforementioned air inlet is separated into outer gas that contains dust and the outer gas that does not contain dust.
12. by claim 9 or 10 open type electric motor for driving vehicle of being recorded and narrated, it is characterized in that, 1 aforementioned first exhaust outlet be set on aforementioned end frame one side's outer peripheral face.
13., it is characterized in that a side's of aforementioned end frame central part side has recess by claim 9 or 10 open type electric motor for driving vehicle of being recorded and narrated; Simultaneously, a plurality of aforementioned air inlets are set on the inner peripheral surface of this recess.
14. open type electric motor for driving vehicle, it is characterized in that, has the stator of being located at the rotor frame inboard, be located at the rotor of this stator inboard, support the bearing arrangement of this rotor shaft, be located at the end frame of stator former frame ends, be located at the fan in the rotating shaft between aforementioned rotor and aforementioned bearings device, be used for the air inlet in the outer gas inhalation machine, be used for the outer gas in the inhalation machine is discharged to machine outer first exhaust outlet and second exhaust outlet, on relative part, the member that extends to internal side diameter is set, than this member above-mentioned first exhaust outlet is being set partly with respect to iron core with the outside diameter of aforementioned fan; The ventilation cross-sectional area in the gap between the external diameter of aforementioned fan and the internal diameter of aforementioned components is bigger than the ventilation cross-sectional area of aforementioned first exhaust outlet.
15. open type electric motor for driving vehicle, it is characterized in that, has the stator of being located at the rotor frame inboard, be located at the rotor of this stator inboard, support the Bearning mechanism of the rotating shaft of this rotor, be located at the end frame of stator former frame ends, be located at the fan in the rotating shaft between aforementioned rotor and aforementioned bearings device, with the air inlet in the outer gas inhalation machine, outer gas in the inhalation machine is discharged to machine outer first exhaust outlet and second exhaust outlet, the member that extends to internal side diameter is set on the part relative with the outside diameter of aforementioned fan, on than this member part more in the outer part, above-mentioned first exhaust outlet is set; Between this first exhaust outlet and second air inlet that is located at aforementioned second exhaust side, the ventilation duct that is communicated with them is set.
16. by claim 14 or 15 open type electric motor for driving vehicle of being recorded and narrated, it is characterized in that, aforementioned components is the separating mechanism that contains separating plate, and the outer gas that this separating plate is used for sucking from aforementioned air inlet is separated into outer gas that contains dust and the outer gas that does not contain dust.
17. open type electric motor for driving vehicle, it is characterized in that, has stator, be positioned at the rotor of this stator inboard, be located at 1 or 2 fans on this rotor shaft, built-in this stator, rotor, the housing that fan ground forms, the dust separating mechanism that on relative part, is provided with aforementioned fan outside diameter, stop up the obstruction component of the axial one-sided or both sides of this housing, aforementioned obstruction component also can the aforementioned housing of double as a part, on a side of aforementioned obstruction component, offer and aforementioned fan roughly the be in line air admission hole or the air inlet pipe of shape, on aforementioned obstruction component or aforementioned housing, offer at least 2 steam vents or blast pipe, be located at aforementioned air admission hole or air inlet pipe side for 1 in this steam vent or the blast pipe, and other steam vents or blast pipe are arranged on a side opposite with aforementioned air inlet or air inlet pipe in the axial direction; The ventilation cross-sectional area in the gap between the internal diameter of the external diameter of aforementioned fan and aforementioned dust separating mechanism is bigger than the ventilation cross-sectional area of the aforementioned steam vent of being located at aforementioned air admission hole or air inlet pipe side or blast pipe.
18. open type electric motor for driving vehicle, it is characterized in that, have stator, be positioned at this stator inboard rotor, be located on this rotor shaft 1 or 2 fans, built-in this stator, rotor, fan and the housing that forms, be used to stop up the obstruction component of the axial one-sided or both sides of this housing, the part that this obstruction component also can the aforementioned housing of double as; On a side of aforementioned obstruction component, offer air admission hole or air inlet pipe; On aforementioned obstruction component or aforementioned housing, offer at least 2 steam vents or blast pipe, be located at aforementioned air admission hole or air inlet pipe side for 1 in this steam vent or the blast pipe, other steam vents or blast pipe are positioned at and aforementioned air admission hole or the opposite in the axial direction side of air inlet pipe; The aforementioned steam vent or the blast pipe that are located at aforementioned air admission hole or air inlet pipe side are connected with second air admission hole or the air inlet pipe that are opened in aforementioned other steam vents or blast pipe side.
19. open type electric motor for driving vehicle, it is characterized in that, have stator, be located at the rotor of this stator inboard, round the rotating shaft of the housing of this stator and rotor, aforementioned rotor, stop up obstruction component, a side who is located at this obstruction component and the fan in the aforementioned rotating shaft between stator former and rotor of aforementioned housing both sides; On a side of aforementioned obstruction component, establish air admission hole, on side of aforementioned obstruction component or housing, establish first steam vent, on the opposing party of aforementioned obstruction component or housing, establish second steam vent; On relative part, the dust separating mechanism is set with aforementioned fan outside diameter, so that form the air stream that advances towards the inner face side of side of the aforementioned obstruction component that is provided with aforementioned first steam vent or housing from aforementioned air admission hole, and the air that the gap between the internal diameter of the external diameter by aforementioned fan and aforementioned dust separating mechanism is diverted in the machine flows; The ventilation cross-sectional area that the air that the aforementioned ventilation cross-sectional area ratio that is diverted to the air stream in the machine is discharged from first steam vent flows is big.
20. open type electric motor for driving vehicle, it is characterized in that, have stator, be located at the rotor of this stator inboard, round the rotating shaft of the housing of these stators and rotor, aforementioned rotor, stop up obstruction component, a side who is located at this obstruction component and the fan in the aforementioned rotating shaft between stator former and the rotor of aforementioned housing both sides; On a side of aforementioned obstruction component, establish air admission hole, on side of aforementioned obstruction component or housing, establish first steam vent, on the opposing party of aforementioned obstruction component or housing, establish second steam vent; Form the air stream that advances towards the inner face side of side of the aforementioned obstruction component that is provided with first steam vent or housing from aforementioned air admission hole respectively and be separated to air stream in the machine by aforementioned fan; The aforementioned air stream that advances towards a side or the housing inner face side of the aforementioned obstruction component that is provided with first steam vent is guided the opposing party of aforementioned obstruction component and the space between stator former and rotor.
21., it is characterized in that the aforementioned air stream that flows to the inner face side of side of the aforementioned obstruction component that is provided with first steam vent or housing from air admission hole contains dust by claim 19 or 20 described open type electric motor for driving vehicle; The aforementioned air stream that is diverted in the machine does not contain dust.
22. open type electric motor for driving vehicle, it is characterized in that having stator, be located at the rotor of this stator inboard, rotor frame round stator former and rotor, stop up the end frame at these rotor frame two ends, be located at the air admission hole on the side of this end frame, be located at first steam vent on aforementioned end frame one side, be located at second steam vent on aforementioned end frame the opposing party, be disposed at a side of aforementioned end frame and first fan in the space between stator former and rotor, be disposed at the opposing party of aforementioned end frame and second fan in the space between stator former and rotor, the dust separating mechanism that on the part relative, is provided with the aforementioned first fan outside diameter; The ventilation cross-sectional area in the gap between the internal diameter of aforementioned first fan external diameter and aforementioned dust separating mechanism is bigger than the ventilation cross-sectional area of aforementioned first steam vent.
23. the open type electric motor for driving vehicle by claim 22 is recorded and narrated is characterized in that, aforementioned second fan is installed in the rotating shaft of aforementioned rotor; Radially to leave this installation portion far away more along with it, and it is far away more that it leaves aforementioned rotor.
24., it is characterized in that as aforementioned second fan use is cowling panel by claim 22 or 23 open type electric motor for driving vehicle of being recorded and narrated.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP30850/98 | 1998-02-13 | ||
| JP30850/1998 | 1998-02-13 | ||
| JP3085098 | 1998-02-13 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1290420A CN1290420A (en) | 2001-04-04 |
| CN1205726C true CN1205726C (en) | 2005-06-08 |
Family
ID=12315196
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 99802906 Expired - Lifetime CN1205726C (en) | 1998-02-13 | 1999-02-12 | Open type electric motor for driving vehicle |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JP3211826B2 (en) |
| CN (1) | CN1205726C (en) |
| WO (1) | WO1999041822A1 (en) |
Families Citing this family (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2800931B1 (en) * | 1999-11-09 | 2004-01-23 | Alstom | VENTILATION DEVICE AND ELECTRIC RAIL TRACTION MOTOR EQUIPPED WITH SUCH A DEVICE |
| JP2002058195A (en) * | 2000-08-10 | 2002-02-22 | Toyo Electric Mfg Co Ltd | Main motor for vehicle |
| JP2002078292A (en) * | 2000-08-30 | 2002-03-15 | Toyo Electric Mfg Co Ltd | Main motor for vehicle |
| FR2870054B1 (en) * | 2004-04-30 | 2006-07-21 | Valeo Equip Electr Moteur | AIR-REFRIGERATED ALTERNATOR COMPRISING A CLOSING MEANS CLOSING OUTLETS OF COOLING AIR DELIVERY SLOTS |
| JP4389918B2 (en) * | 2006-09-28 | 2009-12-24 | 株式会社日立製作所 | Rotating electric machine and AC generator |
| FR2979499B1 (en) * | 2011-08-30 | 2013-09-20 | Leroy Somer Moteurs | ELECTRICAL MACHINE WITH IMPROVED COOLING. |
| CN103959613B (en) * | 2011-12-05 | 2016-08-17 | 东洋电机制造株式会社 | Electric motor for vehicle |
| CN103166363A (en) * | 2013-01-31 | 2013-06-19 | 南车株洲电力机车研究所有限公司 | Composite air cooling system of full sealed traction motor |
| CN104734410B (en) * | 2013-12-20 | 2018-09-04 | 北芝电机株式会社 | Blower motor |
| CN104218736A (en) * | 2014-10-10 | 2014-12-17 | 永济新时速电机电器有限责任公司 | Self-ventilation asynchronous motor with large induced draught fan |
| CN104578530B (en) * | 2014-12-16 | 2017-01-18 | 江苏金飞达电动工具有限公司 | Waterproof motor |
| CN104485781A (en) * | 2014-12-18 | 2015-04-01 | 重庆赛力盟电机有限责任公司 | Motor radiating and cooling system |
| CN104600886B (en) * | 2015-01-27 | 2017-01-25 | 新疆金风科技股份有限公司 | Direct drive permanent magnet wind generator, direct drive permanent magnet wind generator system and stator of direct drive permanent magnet wind generator |
| CN106160339A (en) * | 2015-03-25 | 2016-11-23 | 博西华电器（江苏）有限公司 | Motor and the household electrical appliance with this motor |
| JP7021472B2 (en) | 2016-11-02 | 2022-02-17 | 日本電産株式会社 | motor |
| EP3652442A1 (en) * | 2017-08-24 | 2020-05-20 | GE Renewable (Switzerland) GmbH | A fan |
| JP2019198192A (en) * | 2018-05-11 | 2019-11-14 | 株式会社日立製作所 | Electric motor |
| CN108667214B (en) * | 2018-08-14 | 2021-06-29 | 舒畅 | Motor and motor cavity exhaust method |
| CN111864960B (en) * | 2020-08-03 | 2021-07-27 | 华育昌(肇庆)智能科技研究有限公司 | Self-heat-dissipation rare earth permanent magnet synchronous motor |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS535706U (en) * | 1976-07-01 | 1978-01-19 | ||
| JPS55162367U (en) * | 1979-05-10 | 1980-11-21 | ||
| JPS60162960U (en) * | 1984-04-04 | 1985-10-29 | 三菱電機株式会社 | Open drip-proof rotating electric machine |
| JPH01142348A (en) * | 1987-11-30 | 1989-06-05 | Toshiba Corp | Outdoor unit of air conditioner having a plurality of multiblade fan |
| JPH0330754U (en) * | 1989-08-03 | 1991-03-26 | ||
| JPH04304143A (en) * | 1991-03-29 | 1992-10-27 | Hitachi Ltd | Main electric motor for vehicle |
-
1999
- 1999-02-12 WO PCT/JP1999/000617 patent/WO1999041822A1/en active Search and Examination
- 1999-02-12 JP JP2000531897A patent/JP3211826B2/en not_active Expired - Lifetime
- 1999-02-12 CN CN 99802906 patent/CN1205726C/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| CN1290420A (en) | 2001-04-04 |
| JP3211826B2 (en) | 2001-09-25 |
| WO1999041822A1 (en) | 1999-08-19 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN1205726C (en) | Open type electric motor for driving vehicle | |
| CN1163672C (en) | Two-stage centrifugal compressor | |
| US7462964B2 (en) | Fully-enclosed fan-cooled motor | |
| EP1100184B1 (en) | Motor ventilating device and electric traction motor provided with this device | |
| CN1026609C (en) | Motor compressor | |
| SU667176A3 (en) | Commutator motor | |
| CN1311166C (en) | Electrically power blower | |
| CN1305426C (en) | Vacuum cleaner | |
| CN1784818A (en) | Electric machine having cooled metal laminated stator and rotor cores and windings | |
| CN101052810A (en) | Electric blower | |
| CN102213097A (en) | Self-propelled surface milling machine with electrical mill roll drive | |
| CN1770599A (en) | Exhausting apparatus of motor assembly and vacuum cleaner having the same | |
| CA2826091C (en) | System and method for increasing airflow in electric machines | |
| CN215009877U (en) | High-efficient radiating permanent-magnet machine drive arrangement | |
| KR20160005679A (en) | Clamped circular plate and vacuum pump | |
| US20110135506A1 (en) | Multi-stage vacuum pump | |
| CN104485781A (en) | Motor radiating and cooling system | |
| KR20050042067A (en) | Cooled screw-type vacuum pump | |
| CN100340050C (en) | AC generator for vehicle | |
| US20120251351A1 (en) | Gas Compressor Assembly | |
| CN201868978U (en) | Self-ventilation electrical machine | |
| JP2010525773A (en) | Air cleaner for electric machine | |
| CN1250874C (en) | Rotary air compressor | |
| JP3211823B2 (en) | Open type electric motor for vehicle drive | |
| CN1130446A (en) | Driving unit |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20050608 |