CN202309288U - Motor - Google Patents
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- CN202309288U CN202309288U CN2011204350896U CN201120435089U CN202309288U CN 202309288 U CN202309288 U CN 202309288U CN 2011204350896 U CN2011204350896 U CN 2011204350896U CN 201120435089 U CN201120435089 U CN 201120435089U CN 202309288 U CN202309288 U CN 202309288U
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- peripheral surface
- armature spindle
- reductor
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- Iron Core Of Rotating Electric Machines (AREA)
Abstract
The utility model relates to a motor, which improves cooling performance of a permanent magnet embedded in a rotor core. The motor is provided with a rotor (11), the rotor (11) is provided with a rotor shaft (12), a rotor core (31) and a supporting component (21) connecting the rotor shaft (12) and the rotor core (31) in supporting mode. The supporting component (21) is formed by an outer drum portion (22) fixed on an inner circumference of the rotor core and a disc-shaped supporting body (23) dividing the outer drum portion (22) into two portions along the axial direction of the rotor shaft. The motor is provided with oil supplying units (14 and 15) for supplying oil to one side of the inner circumference of the outer drum portion divided by the supporting body (23), and a through hole (24) communicated with the supporting body (23) is arranged on an installing face of the supporting body (23) facing the outer drum portion (22).
Description
Technical field
The present invention relates to a kind of motor, relate to a kind of cooling construction of motor especially.
Background technology
Motor has rotor, the support component that this rotor has armature spindle (11), rotor core (24) and connects and support these armature spindles (11), rotor core (24).And support component constitutes along the discoid supporter (25) that axially is separated into 2 parts of armature spindle by the urceolus portion (27) of the inner peripheral surface that is fixed in rotor core (24) with this urceolus portion (27).In the motor of this structure, the technology of patent documentation 1 is the permanent magnet that is embedded in the rotor core (24) in order to cool off, and the urceolus portion inner peripheral surface (27c) of a side of separating to supported body (25) is supplied with oil.
Patent documentation 1: TOHKEMY 2010-28979 communique
Summary of the invention
But, in the technology of above-mentioned patent documentation 1, have only the urceolus portion inner peripheral surface of a side of supported body separation to be cooled.That is, because in the urceolus portion of other side that supported body is separated
Side face is not cooled, thus the permanent magnet that is embedded in the rotor core can't cool off fully, thereby cooling performance reduces.
Therefore, the object of the present invention is to provide a kind of motor, it can make the cooling performance that is embedded in the permanent magnet in the rotor core be improved.
Motor, it has rotor, and this rotor has: armature spindle; Rotor core cylindraceous, its be positioned to the outer circumferential side of armature spindle away from the position, permanent magnet is installed; And support component; It links support with these armature spindles and rotor core; It is characterized in that said support component constitutes along the discoid supporter that axially is separated into 2 parts of armature spindle by the urceolus portion on the inner peripheral surface that is fixed in rotor core with this urceolus portion, have oily feed unit from oil to the urceolus portion inner peripheral surface of a side of separating by said supporter that supply with; On the installed surface of said urceolus portion, the through hole that runs through supporter is set at said supporter.
The effect of invention
According to the present invention, even because be not supplied to the urceolus portion inner peripheral surface of oily side because supported body is separated, also can supply with oil via through hole cools off, so can improve the cooling performance that is embedded in the permanent magnet in the rotor core.
Description of drawings
Fig. 1 is the summary section of the motor of expression the 1st execution mode of the present invention.
Fig. 2 is the profile of expression along the A-A line of Fig. 1.
Fig. 3 is the summary section of the motor of expression the 2nd execution mode.
Fig. 4 is the profile of expression along the A-A line of Fig. 3.
Fig. 5 is the summary section of the motor of expression the 3rd execution mode.
Fig. 6 is the expanded view of the part of presentation graphs 5.
Fig. 7 is the summary section of the motor of expression the 4th execution mode.
Fig. 8 is the profile of expression along the A-A line of Fig. 7.
Fig. 9 is the summary section of the motor of expression the 5th execution mode.
Figure 10 is illustrated among Fig. 9 to enclose expanded view partly with circle.
Figure 11 be the A of expression Figure 10 to arrow view and B to the arrow view.
Figure 12 is the summary section of the motor of expression the 6th execution mode.
Figure 13 is the expanded view of the part of expression Figure 12.
Figure 14 is the expanded view along through hole of expression the 6th execution mode.
Figure 15 is the summary section of the motor of expression the 7th execution mode.
Figure 16 is the expanded view of the part of expression Figure 12.
Figure 17 is the expanded view along through hole of expression the 7th execution mode.
Figure 18 is the summary section of the motor of expression the 8th execution mode.
Figure 19 is the expanded view of the part of expression Figure 18.
Figure 20 is the expanded view along through hole of expression the 8th execution mode.
Figure 21 is the summary section of the motor of expression the 9th execution mode.
Figure 22 is the profile of expression along the A-A line of Figure 21.
Figure 23 is the summary section of the motor of expression the 10th execution mode.
Figure 24 is the profile of expression along the A-A line of Figure 23.
Figure 25 is the key diagram of expression cross supporter to the installed surface of cross urceolus portion.
Embodiment
Below, based on accompanying drawing execution mode of the present invention is described.
(the 1st execution mode)
Fig. 1 is the summary section of the motor 1 of an embodiment of the invention, and Fig. 2 is the profile along the A-A line of Fig. 1.Wherein, cross (spider) 21 only is shown in Fig. 2.
In Fig. 1, ring-type end plate 2a, the 2b about motor field frame 2 has and be fixed in the framework 2c cylindraceous of the peripheral part of each end plate 2a, 2b.Through the ring-type end plate 2a about being arranged at, 2 bearings 3,4 on the 2b inner peripheral surface, be supported on upwardly extending armature spindle 12 of right and left and deceleration arbor 6 rotationally.In addition, armature spindle 12 and deceleration arbor 6 arranged coaxial, the two links via reductor 5.
Above-mentioned reductor 5 is by the actuating force of adjustment (increases) armature spindle 12 and be passed to the epicyclic gearing formation of deceleration arbor 6.In this epicyclic gearing, comprise the pinion 7 on the periphery 13 that is fixed in armature spindle 12.
Fix the stator core 9 of the ring-type that constitutes by the multilayer silicon steel plate at the inwall of framework 2c.
In the inboard of stator 8, the rotor 11 that constitutes by armature spindle 12, cross 21 and rotor core 31, and dispose across predetermined gap between the interior week of stator 8.Promptly; In Fig. 1; On the periphery 13 of the armature spindle 12 that direction to the left and right prolongs, chimeric fixing cross 21 as the rotor core support component, and then at the rotor core 31 of the chimeric fixing ring-type that for example constitutes by range upon range of multilayer silicon steel plate of the periphery of cross 21.
In rotor core 31, in the outer radial periphery side of armature spindle 12, burying the parts that are magnetized underground is permanent magnet (with reference to Figure 22), and has not shown end plate in the end of axial (left and right directions) of armature spindle 12.
By the above-mentioned cross 21 that magnetic materials such as iron constitute, be fixed on the cross urceolus cylindraceous portion 22 on interior all 31a of rotor core 31 by insertion and this cross urceolus portion 22 constituted along the discoid cross supporter 23 that axially is separated into 2 parts of armature spindle 12.
In armature spindle 12, form to supply with axial oily stream 14, and the oily stream 15 radially of cold oil, this oil stream 15 from this oil stream 14 radially towards armature spindle 12, and at periphery 13 openings of armature spindle 12.Make the openend 15a of this radially oily stream 15 relative with the pinion 7 that constitutes reductor 5.Therefore, the oil that comes from the oil pump of the outside that is arranged at motor field frame 2 is supplied with to pinion 7 through being arranged at the oily stream 14,15 in the armature spindle 12, thereby the reductor 5 that comprises pinion 7 is lubricated.That is, constitute oily feed unit by oil pump, oily stream 14,15.
The permanent magnet of imbedding in the rotor core 31 can generate heat.In order to utilize reductor 5 is lubricated the but permanent magnet of this heating of oil coolings afterwards; When armature spindle 12 rotation, make oil after the lubricant transfer pinion 7 utilize centrifugal force to spray (supply) to the side 23a of reductor 5 sides of the inner peripheral surface of cross urceolus portion 22 and cross supporter 23.
But, cross supporter 23 along the axial thickness of armature spindle 12, thinner than cross urceolus portion 22 along the axial thickness of armature spindle 12, and cross urceolus portion 22 along the axial substantial middle of armature spindle 12, configuration cross supporter 23.And the hole is not set on the whole in the side of supporter 23.That is be to come from the oil of reductor 5, by the structure of cross supporter 23 coverings.Therefore; Be supplied to the oil that comes from reductor 5; Only be cross urceolus portion inner peripheral surface (following cross urceolus portion inner peripheral surface with these reductor 5 sides is called " deceleration pusher side the inner peripheral surface ") 22a of reductor 5 sides, and do not supply with oil to cross urceolus portion inner peripheral surface (following cross urceolus portion inner peripheral surface with these reductor 5 opposition sides is called " reductor opposition side the inner peripheral surface ") 22b of reductor 5 opposition sides.In addition, the internal diameter of deceleration pusher side inner peripheral surface 22a is identical with the internal diameter of reductor opposition side inner peripheral surface 22b.
Therefore in this execution mode, in order also to supply with the oil that comes from reductor 5, and the through hole 24 of the straight tube-like that runs through cross supporter 23 is set on the installed surface of cross urceolus portion 22 at cross supporter 23 to reductor opposition side inner peripheral surface 22b.As it be shown in fig. 2,6 through holes 24 equally spaced are set on the circumferencial direction of armature spindle 12.The section of through hole 24 is the circle shape, but is not limited thereto.
Here; So-called cross supporter 23 installed surfaces to cross urceolus portion 22; Shown in the model among Figure 25 (a); When between cross supporter 23 and cross urceolus portion 22, supposing the boundary face (reference point line) of horizontal direction, this boundary face is the installed surface of cross supporter 23 to cross urceolus portion 22.In this case, the boundary face of horizontal direction is can be with deceleration pusher side side 23a and the reductor opposition side side 23b of cross spider (curve) between the deceleration pusher side inner peripheral surface 22a and cross supporter 23 and the curved surface that the cross spider (curve) between the reductor opposition side inner peripheral surface 22b links of cross supporter 23.
Under the identical situation of the two internal diameter of deceleration pusher side inner peripheral surface 22a and reductor opposition side inner peripheral surface 22b, through hole 24 armature spindle 12 axially on form.Therefore, the reductor side opening 24a of portion of through hole 24 and reductor opposition side peristome 24b are to axial (left and right directions in Fig. 1) opening of armature spindle 12.
The action effect of the 1st execution mode here, is described.
In the 1st execution mode, with the reductor 5 lubricated oil that utilize centrifugal force to be thrown out of afterwards, with the deceleration pusher side side 23a and the deceleration pusher side inner peripheral surface 22a collision of cross supporter 23.Especially,, flow to the radial outside of armature spindle 12 along the surface of deceleration pusher side side 23a with the oil of the deceleration pusher side side 23a of cross supporter 23 collision, and with speed change pusher side inner peripheral surface 22a collision, thereby generate axial the flowing of armature spindle 12.Flow to the mobile of reductor 5 sides and flow to flowing of reductor 5 opposition sides axial mobile being divided into of this armature spindle 12.Wherein, flow to flowing of reductor 5 opposition sides, arrive reductor opposition side inner peripheral surface 22b, and flow to the integral body of reductor opposition side inner peripheral surface 22b through through hole 24.That is, can be that reductor opposition side inner peripheral surface 22b supplies with oil, to the urceolus portion inner peripheral surface on cross supporter 23 opposites via through hole.
Like this, in the 1st execution mode, motor 1 has rotor 11, and this rotor 11 has: armature spindle 12; Rotor core 31 cylindraceous, its be positioned to the outer circumferential side of armature spindle 12 away from the position, permanent magnet is installed; Cross (support component) 21; It links these armature spindles 12 of support and rotor core 31; Cross 21 constitutes along the discoid cross supporter 23 (supporter) that axially is separated into 2 parts of armature spindle 12 by the cross urceolus portion 22 (urceolus portion) of the inner peripheral surface that is fixed in rotor core 31 with this cross urceolus portion 22; Have oily feed unit (14,15) from oil to deceleration pusher side inner peripheral surface 22a (by the urceolus portion inner peripheral surface of a side of said cross supporter 23 separations) that supply with, and the through hole 24 that runs through cross supporter 23 is set on the installed surface of cross urceolus portion 22 at cross supporter 23.Like this, can supply with oil to the reductor opposition side inner peripheral surface 22b that can't supply with oily side owing to being separated by cross supporter 23.Utilization can be cooled off the rotor core 31 (cooling performance of permanent magnet is improved) that becomes the reductor opposition side of high temperature owing to the heating of permanent magnet to the oil that this reductor opposition side inner peripheral surface 22b supplies with.
In addition; In the 1st execution mode; Has the reductor 5 that the rotary speed of armature spindle 12 is slowed down and exported coaxially with armature spindle 12; And have the part of reductor 5 at least in interior all sides of rotor core 12, the oil that oily feed unit is supplied with is with these reductor 5 lubricated oil afterwards.With reductor 5 lubricated after; Utilize centrifugal force and be thrown out of; And with cross supporter 23 collision; The oil that flows to the radial outside of armature spindle 12 along the surface of this cross supporter 23 with the installed surface collision of cross supporter 23 to cross urceolus portion 22, thereby produces armature spindle 12 axial flowing.Flow to the mobile of reductor 5 sides and flow to flowing of reductor 5 opposition sides axial mobile being divided into of this armature spindle 12, flows to flowing through through hole 24 of reductor 5 opposition sides, thereby can also supply with oil to the inner peripheral surface 22b of urceolus portion on cross 23 opposites.
(the 2nd execution mode)
Fig. 3 is the summary section of the motor 1 of the 2nd execution mode, and Fig. 4 is the profile along the A-A line of Fig. 3, is Fig. 1 of replacement the 1st execution mode, the figure of Fig. 2.The part mark identical label identical with Fig. 1, Fig. 2 of the 1st execution mode.Wherein, cross 21 only is shown in Fig. 4.
As the 2nd execution mode; Among the deceleration pusher side inner peripheral surface 22a and reductor opposition side inner peripheral surface 22b that are separated by cross supporter 23; Make the inside diameter D 1 of inside diameter D 2 ratio speed reducer side inner peripheral surface 22a of reductor opposition side inner peripheral surface 22b big; And on the installed surface of cross urceolus portion 22, the through hole 25 of the straight tube-like that runs through cross supporter 23 is set at cross supporter 23.As shown in Figure 4,6 through holes 25 equally spaced are set on the circumferencial direction of armature spindle 12.
Under the big situation of the inside diameter D of the inside diameter D 2 ratio speed reducer side inner peripheral surface 22a of reductor opposition side inner peripheral surface 22b 1; Shown in the model among Figure 25 (b); Can between cross supporter 23 and cross urceolus portion 22, suppose the boundary face (reference point line) of incline direction, this boundary face is the installed surface of cross supporter 23 to cross urceolus portion 22.In this case, the boundary face of incline direction is deceleration pusher side side 23a and the reductor opposition side side 23b of cross spider (curve) between the deceleration pusher side inner peripheral surface 22a and cross supporter 23 and the curved surface that the cross spider (curve) between the reductor opposition side inner peripheral surface 22b links with cross supporter 23.
Under the big situation of the inside diameter D of the inside diameter D 2 ratio speed reducer side inner peripheral surface 22a of reductor opposition side inner peripheral surface 22b 1, the center line C of through hole 25 has the angle [alpha] (0 °＜α＜90 °) of regulation with respect to radially (above-below direction in Fig. 3) of armature spindle 12.The reductor side opening 25a of portion of through hole 25 and reductor opposition side peristome 25b are all to axial (left and right directions in Fig. 3) opening of armature spindle 12.
Flow to the radial outside of armature spindle 12 with the deceleration pusher side side 23a of cross supporter 23 collision and along the surface of deceleration pusher side side 23a, and with the oil of speed change pusher side inner peripheral surface 22a collision, along the axial flow of armature spindle 12.Armature spindle flows to the mobile of reductor 5 sides and flows to flowing of reductor 5 opposition sides 12 axial mobile being divided into, and in the 2nd execution mode, through hole 25 tilts to the radial outside of armature spindle 12 from the reductor side opening 25a of portion.Like this, the oil ratio that flows to reductor 5 opposition sides is many to the oil of reductor 5 side flow, thereby the oil mass of supplying with to reductor opposition side inner peripheral surface 22b is than the situation increase of the 1st execution mode.
Like this; According to the 2nd execution mode; Because among deceleration pusher side inner peripheral surface 22a and reductor opposition side inner peripheral surface 22b (supported body 23 is separated into the urceolus portion inner peripheral surface of 2 parts); The inside diameter D 1 of the inside diameter D 2 ratio speed reducer side inner peripheral surface 22a (the urceolus portion inner peripheral surface of the side that supported body is separated) of reductor opposition side inner peripheral surface 22b (opposition side of the side that supported body is separated is the urceolus portion inner peripheral surface of opposite side) is big; And be provided with on the installed surface of cross urceolus portion 22 at cross supporter 23 and run through the through hole 25 of cross supporter 23, so can make the situation increase of the oil mass supplied with to reductor opposition side inner peripheral surface 22b than the 1st execution mode.
(the 3rd execution mode)
Fig. 5 is the summary section of the motor 1 of the 3rd execution mode, and Fig. 6 (a) is enclosed expanded view partly by circle (with reference to dotted line) in Fig. 5, and Fig. 6 (b) is the profile along the A-A line of Fig. 6 (a).The part mark identical label identical with Fig. 1, Fig. 2 of the 1st execution mode.
The reductor side opening 25a of portion of the through hole 25 of the 2nd execution mode is to armature spindle 12 axially (in Fig. 3 right-hand) opening.Relative therewith, the reductor side opening 26a of portion of the through hole 26 of the 3rd execution mode is shown in Fig. 6 (a), to radially inner side (above-below direction in Fig. 5) opening of armature spindle 12.Therefore, in the place ahead of the oil that flows to the radial outside of armature spindle 12 along the deceleration pusher side sidewall 23a of cross supporter 23, opening has the reductor side opening 26a of portion of through hole 26.Like this; If towards the radially inner side (above-below direction in Fig. 5) of armature spindle 12 and opening has the reductor side opening 26a of portion of through hole 26, the oil that then flows to the radial outside of armature spindle 12 along deceleration pusher side sidewall 23a is basically all to the reductor side opening 26a of the portion supply (with reference to the arrow of Fig. 6) of through hole 26.
Except the reductor side opening 26a of portion is different with the 2nd execution mode, the structure that other is all identical with the 2nd execution mode.Promptly; Among the deceleration pusher side inner peripheral surface 22a and reductor opposition side inner peripheral surface 22b that are separated by cross supporter 23; The inside diameter D 1 of inside diameter D 2 ' the ratio speed reducer side inner peripheral surface 22a of reductor opposition side inner peripheral surface 22b is big, and at cross supporter 23 through hole 26 of the straight tube-like that runs through cross supporter 23 is set on the installed surface of cross urceolus portion 22.6 through holes 26 equally spaced are set on the circumferencial direction of armature spindle 12.
Because the inside diameter D 1 of inside diameter D 2 ' the ratio speed reducer side inner peripheral surface 22a of reductor opposition side inner peripheral surface 22b is big, so the center line C of through hole 26 has the angle [alpha] (0 °＜α＜90 °) of regulation with respect to radially (above-below direction in Fig. 5) of armature spindle 12.The reductor opposition side peristome 26b of through hole 26 is to axial (left in Fig. 5) opening of armature spindle 12.
According to the 3rd execution mode; Because among the deceleration pusher side inner peripheral surface 22a and deceleration pusher side opposition side inner peripheral surface 22b that are separated by cross supporter 23; The inside diameter D 1 of inside diameter D 2 ' the ratio speed reducer side inner peripheral surface 22a of reductor opposition side inner peripheral surface 22b is big; And the through hole 26 that runs through cross supporter 23 is set on the installed surface of cross urceolus portion 22 at cross supporter 23; And the reductor side opening 26a of portion of through hole 26 is to the radially inner side opening of armature spindle 12, so compare with the 2nd execution mode situation, the oily flow of supplying with to reductor opposition side inner peripheral surface 22b increases.
(the 4th execution mode)
Fig. 7 is the summary section of the motor 1 of the 4th execution mode, and Fig. 8 is the profile along the A-A line of Fig. 7, is the Fig. 1 in replacement the 1st execution mode, the figure of Fig. 2.The part mark identical label identical with Fig. 1, Fig. 2 of the 1st execution mode.But, cross 21 only is shown in Fig. 8.
Make the internal diameter of the cross urceolus portion inner peripheral surface 22 of the 4th execution mode; Dwindle gradually to the axial inboard of armature spindle 12 from the armature spindle 12 axial two ends of cross urceolus portion 22; And the least part of the internal diameter of cross urceolus portion inner peripheral surface 22 along armature spindle 12 axial locations, approach reductor 5 sides of cross supporter 23.
Here; Cross urceolus portion 22 is divided into 2 parts 41,42 along armature spindle 12 axial (left and right directions in Fig. 7); With the part 41 of deceleration pusher side as " the 1st cross urceolus portion ", with the part 42 of reductor opposition side as " the 2nd cross urceolus portion ".Wherein, the internal diameter of the inner peripheral surface 41a of the 1st cross urceolus portion 41 forms to the axial reductor opposition side of armature spindle 12 from armature spindle 12 axial reductor side 41b (right-hand member among Fig. 7) gradually with dwindling.On the other hand, the internal diameter of the inner peripheral surface 42a of the 2nd cross urceolus portion 42 forms to armature spindle 12 axial deceleration pusher sides (right-hand in Fig. 7) from the armature spindle 12 axial opposite side 42b of reductor (left end among Fig. 7) gradually with dwindling.In this case, the part of the path Dmin of the internal diameter of cross urceolus portion inner peripheral surface 22 (41a, 42a) along the axial position of armature spindle 12, more approach reductor 5 sides than cross supporter 23.Therefore, the inner peripheral surface 42a's of the 2nd cross urceolus portion 42 along armature spindle 12 axial widths than the inner peripheral surface 41a of 1st cross urceolus portion 41 bigger along armature spindle 12 axial widths.
Like this, forming the 1st, the 2nd cross urceolus portion at 41,42 o'clock, cross supporter 23 is connected with the 2nd cross urceolus portion 42.Here; To will be distinguished as " reductor opposition side inner peripheral surface 42ab " by the 2nd inner peripheral surface 42a of cross urceolus portion of reductor 5 opposition sides of cross supporter 23 separations by the 2nd inner peripheral surface 42a of cross urceolus portion of reductor 5 sides of cross supporter 23 separations as " deceleration pusher side inner peripheral surface 42aa ".
And, for the cross urceolus portion 22 (41,42) of such formation, the through hole 27 of the straight tube-like that runs through cross supporter 23 is set on the installed surface of cross urceolus portion 22 (41,42) at cross supporter 23 also.As shown in Figure 8,6 through holes 27 equally spaced are set in a circumferential direction.
Because the internal diameter of the internal diameter ratio speed reducer side inner peripheral surface 42aa of reductor opposition side inner peripheral surface 42ab is big, so the center line C of through hole 27 has the angle beta (0 °＜β＜90 °) of regulation with respect to radially (above-below direction in Fig. 7) of armature spindle 12.The reductor side opening 27a of portion of through hole 27, reductor opposition side peristome 27b are all to axial (left and right directions in Fig. 7) opening of armature spindle 12.
If deceleration pusher side inner peripheral surface 42aa tilts to reach the degree towards the opposition side of reductor to the radial outside of armature spindle 12; Then whole basically utilize centrifugal force to be thrown out of after lubricated reductor 5 and with the oil of deceleration pusher side inner peripheral surface 42aa collision, all the reductor side opening 27a of portion to through hole 27 supplies with.And deceleration pusher side sidewall 23a whole basically and cross supporter 23 collision, and the oil that flows to the radial outside of armature spindle 12 along the surface of deceleration pusher side sidewall 23a are also all supplied with to the reductor side opening 27a of portion of through hole 27.
In the 4th execution mode, the axial location of the armature spindle 12 of the internal diameter least part of cross urceolus portion inner peripheral surface is more near reductor 5 sides, and the oil mass of supplying with to reductor opposition side inner peripheral surface 42ab is many more.In addition, the path Dmin of cross urceolus portion inner peripheral surface is big more, and the oil mass of supplying with to reductor opposition side inner peripheral surface 42ab is many more.That is, the path Dmin along armature spindle 12 axial locations and cross urceolus portion inner peripheral surface according to the least part of the internal diameter of cross urceolus portion inner peripheral surface can regulate the oil mass of supplying with to reductor opposition side inner peripheral surface 42ab.
According to the 4th execution mode; Because make internal diameter the dwindling to the axial inboard of armature spindle 12 gradually of cross urceolus portion inner peripheral surface from cross urceolus portion 22 along armature spindle 12 axial two ends 41b, 42b; And armature spindle 12 axial locations of the least part of the internal diameter of cross urceolus portion inner peripheral surface more approach reductor 5 sides (side that supported body is separated) than cross supporter 23; And the through hole 27 that runs through cross supporter 23 is set on the installed surface of cross urceolus portion 22 (41,42) at cross supporter 23; So compare with the 2nd execution mode, can supply with more oil mass to reductor opposition side inner peripheral surface 22b.
(the 5th execution mode)
Fig. 9 is the summary section of the motor 1 of the 5th execution mode, and Figure 10 is the expanded view of in Fig. 9, enclosing part with circle (with reference to dotted line), Figure 11 (a) be the A of Figure 10 to view, Figure 11 (b) is that the B of Figure 10 is to view.The part mark identical label identical with Fig. 3, Fig. 4 of the 2nd execution mode.But, cross 21 only is shown in Figure 11 (a) and (b).
The 5th execution mode is being prerequisite at the 2nd execution mode shown in Fig. 3, Fig. 4; Make the two the shape of reductor opposition side peristome 28b of the reductor side opening 28a of portion and through hole 28 of through hole 28 different, make the outlet of reductor opposition side peristome 28b be shaped as horn-like.That is, shown in Figure 11 (a) and (b), make through hole 28 reductor opposition side peristome 28b along armature spindle 12 circumferencial direction width W r2, with comparing of the reductor side opening 28a of portion of through hole 28, bigger relatively along armature spindle 12 circumferencial direction width W r1.And make through hole 28 reductor opposition side peristome 28b along armature spindle 12 radial width Wd2, with comparing of the reductor side opening 28a of portion of through hole 28, littler relatively along armature spindle 12 radial width Wd1.
Except the reductor side opening 28a of portion, reductor opposition side peristome 28b are different with the 2nd execution mode, the structure that other is all identical with the 2nd execution mode.Promptly; Between the deceleration pusher side inner peripheral surface 22a and reductor opposition side inner peripheral surface 22b that are separated by cross supporter 23; Make the inside diameter D 1 of inside diameter D 2 ratio speed reducer side inner peripheral surface 22a of reductor opposition side inner peripheral surface 22b big, and the through hole 28 of the straight tube-like that runs through cross supporter 23 is set on the installed surface of cross urceolus portion 22 at cross supporter 23.6 through holes 28 equally spaced are set on the circumferencial direction of armature spindle 12.
Because the inside diameter D 1 of the inside diameter D 2 ratio speed reducer side inner peripheral surface 22a of reductor opposition side inner peripheral surface 22b is big, so the center line C of through hole 28 has the angle [alpha] (0 °＜α＜90 °) of regulation with respect to radially (above-below direction in Fig. 9) of armature spindle 12.The reductor side opening 28a of portion of through hole 28, reductor opposition side peristome 28b are all to axial (left and right directions in Fig. 9) opening of armature spindle 12.
Like this; According to the 5th execution mode; Among deceleration pusher side inner peripheral surface 22a and reductor opposition side inner peripheral surface 22b (2 urceolus portion inner peripheral surfaces that supported body is separated); Make the inside diameter D 1 of inside diameter D 2 ratio speed reducer side inner peripheral surface 22a (the urceolus portion inner peripheral surface of a side) of reductor opposition side inner peripheral surface 22b (opposition side of a side is the urceolus portion inner peripheral surface of opposite side) bigger; And the through hole 28 that runs through cross supporter 23 is set on the installed surface of cross urceolus portion 22 at cross supporter 23; And make the reductor opposition side peristome 28b (opposition side to a side is the peristome of opposite side) of through hole 28 longer on the circumferencial direction of armature spindle 12 than the reductor side opening 28a of portion (to the peristome of a side) of through hole 28, and upwards shorter in the footpath of armature spindle 12.Be shaped as horn-likely through the outlet that makes reductor opposition side peristome 28b, make from reductor opposition side peristome 28b spread than the situation of the 2nd execution mode at reductor opposition side inner peripheral surface 22b biglyyer to the oil that reductor opposition side inner peripheral surface 22b flows out.The more wide region of reductor opposition side inner peripheral surface 22b contacts with oil, thereby can improve the cooling performance of permanent magnet.
(the 6th execution mode)
Figure 12 is the summary section of the motor 1 of the 6th execution mode, and Figure 13 (a) encloses expanded view partly with circle (with reference to dotted line) in Figure 12, and Figure 13 (b) is the profile along the A-A line of Figure 13 (a).Figure 14 is the B-B line along Figure 13 (a) and (b), the expanded view of promptly being launched along through hole 29.The part mark identical label identical with Fig. 5, Fig. 6 of the 3rd execution mode.
The 6th execution mode is a prerequisite with the 3rd execution mode, and the reductor opposition side peristome 29b of the reductor side opening 29a of portion of through hole 29 and through hole 29 is arranged on the position that the circumferencial direction (above-below direction in Figure 14) along armature spindle 12 staggers.Therefore, shown in figure 14, the central shaft C of through hole 29 has the angle θ (0 °＜θ＜90 °) of regulation with respect to the circumferencial direction of armature spindle 12.In order to compare, the through hole 26 with the 3rd execution mode in Figure 14 illustrates with the dotted line stack.In the 3rd execution mode, the central shaft of through hole 26 has 90 ° angle with respect to the circumferencial direction of armature spindle 12.
Except the position of the peristome 29a of through hole 29,29b is different with the 3rd execution mode, the structure that other is all same with the 3rd execution mode.Promptly; Among the deceleration pusher side inner peripheral surface 22a and reductor opposition side inner peripheral surface 22b that are separated by cross supporter 23; The inside diameter D 1 of inside diameter D 2 ' the ratio speed reducer side inner peripheral surface 22a of reductor opposition side inner peripheral surface 22b is big, and at cross supporter 23 through hole 29 of the straight tube-like that runs through cross supporter 23 is set on the installed surface of cross urceolus portion 22.6 through holes 29 equally spaced are set on the circumferencial direction of armature spindle 12.
Because the inside diameter D 1 of inside diameter D 2 ' the ratio speed reducer side inner peripheral surface 22a of reductor opposition side inner periphery 22b is big, so the center line C of through hole 29 has the angle [alpha] (0 °＜α＜90 °) of regulation with respect to radially (above-below direction in Figure 12) of armature spindle 12.The reductor side opening 29a of portion of through hole 29 is to radially inner side (above-below direction in Figure 12) opening of armature spindle 12, and the reductor opposition side peristome 29b of through hole 29 is to axial (left in Figure 12) opening of armature spindle 12.
According to the 6th execution mode; Among the deceleration pusher side inner peripheral surface 22a and reductor opposition side inner peripheral surface 22b that are separated by cross supporter 23; The inside diameter D 1 of inside diameter D 2 ' the ratio speed reducer side inner peripheral surface 22a of reductor opposition side inner peripheral surface 22b is big; And the through hole 29 that runs through cross supporter 23 is set on the installed surface of cross urceolus portion 22 at cross supporter 23; And the reductor side opening 29a of portion of through hole 29 is to the radially inner side opening of armature spindle 12, and reductor opposition side peristome 29b of through hole 29 (through hole is the peristome of opposite side to the opposition side of a side) and the reductor side opening 29a of portion (through hole is to the peristome of a side) are arranged on along on the position that the circumferencial direction of armature spindle 12 staggers.Like this because the friction can lower oil and get into through hole 29 time, so oil get in the through hole 29 easily, thereby the oil mass of being supplied with to reductor opposition side inner peripheral surface 22b can increase than the 3rd execution mode.
(the 7th execution mode)
Figure 15 is the summary section of the motor 1 of the 7th execution mode, and Figure 16 (a) encloses expanded view partly with circle (with reference to dotted line) in Figure 15, and Figure 16 (b) is the profile along the A-A line of Figure 16 (a).Figure 17 is the B-B line along Figure 16 (a) and (b), the expanded view of promptly launching along through hole 30.The part mark identical label identical with Fig. 5, Fig. 6 of the 3rd execution mode.
The 7th execution mode is a prerequisite with the 3rd execution mode; Shown in figure 17; Through hole 30 is that the 2nd through hole 46 of opposite side constitutes by the opposition side of the 1st through hole 45 of a side and a side; Wherein the center line C1 of the 1st through hole 45 is with respect to the circumferencial direction angulation θ 1 (1＜90 ° of 0 °＜θ) of armature spindle 12, and is littler with respect to the circumferencial direction angulation θ 2 (2＜90 ° of 0 °＜θ) of armature spindle 12 than the center line C2 of the 2nd through hole 46.
Except the position of through hole 30 is different with the 3rd execution mode, the structure that other is all identical with the 3rd execution mode.Promptly; Among the deceleration pusher side inner peripheral surface 22a and reductor opposition side inner peripheral surface 22b that are separated by cross supporter 23; The inside diameter D 1 of inside diameter D 2 ' the ratio speed reducer side inner peripheral surface 22a of reductor opposition side inner peripheral surface 22b is big, and at cross supporter 23 through hole 30 (45,46) of the straight tube-like that runs through cross supporter 23 is set on the installed surface of cross urceolus portion 22.6 through holes 30 (45,46) equally spaced are set on the circumferencial direction of armature spindle 12.
Because the inside diameter D 1 of inside diameter D 2 ' the ratio speed reducer side inner peripheral surface 22a of reductor opposition side inner peripheral surface 22b is big, so the center line C1 of the 1st, the 2nd through hole 45,46, C2 have the angle [alpha] (0 °＜α＜90 °) of regulation with respect to radially (above-below direction in Figure 15) of armature spindle 12.The reductor side opening 30a of portion of through hole 30 (the 1st through hole 45) is to radially inner side (above-below direction in Figure 15) opening of armature spindle 12, and the reductor opposition side peristome 30b of through hole 30 (the 2nd through hole 46) is to axial (left in Figure 15) opening of armature spindle 12.
According to the 7th execution mode; Among the deceleration pusher side inner peripheral surface 22a and reductor opposition side inner peripheral surface 22b that are separated by cross supporter 23; The inside diameter D 1 of inside diameter D 2 ' the ratio speed reducer side inner peripheral surface 22a of reductor opposition side inner peripheral surface 22b is big; And the through hole 30 that runs through cross supporter 23 is set on the installed surface of cross urceolus portion 22 at cross supporter 23; And the reductor side opening 30a of portion of through hole 30 is to the radially inner side opening of armature spindle 12; Through hole 30 is that the 2nd through hole 46 of opposite side constitutes by the opposition side of the 1st through hole 45 of a side and a side, and wherein the center line C1 of the 1st through hole 45 is little with respect to the circumferencial direction angulation θ 2 of armature spindle 12 with respect to the center line C2 of circumferencial direction angulation θ 1 to the 2 through hole 46 of armature spindle 12.Like this, the center line C1 of the 1st through hole 45 is with respect to the circumferencial direction angulation θ 1 of armature spindle 12, and is littler with respect to the circumferencial direction angulation θ of armature spindle 12 than the center line C of through hole 29 in the 6th execution mode.Like this; If little with respect to circumferencial direction angulation θ 1 to the 6 execution mode of armature spindle 12; Then oil gets into the 1st through hole 45 (through hole 30) easily, thereby compares with the 6th execution mode, correspondingly increases the oil mass of supplying with to reductor opposition side inner peripheral surface 22b.
In addition; In the 6th execution mode; The reductor opposition side peristome 29b and the reductor side opening 29a of portion of through hole 29 are arranged on along on the position that the circumferencial direction of armature spindle 12 staggers, mean the through hole 26 long (with reference to Figure 14) of the length of through hole 29 than the 3rd execution mode.Therefore, on this aspect of processing through hole, it is more unfavorable that the 6th execution mode is compared with the 3rd execution mode.On the other hand, according to the 7th execution mode, because through hole is made up of 2 through holes 45,46 of warpage, so the length of each through hole 45,46 is shorter than the through hole 29 of the 6th execution mode.Like this, can prevent the processing difficulties degree that causes owing to through hole is elongated.
(the 8th execution mode)
Figure 18 is the summary section of the motor 1 of the 8th execution mode, and Figure 19 (a) encloses expanded view partly with circle (with reference to dotted line) in Figure 18, and Figure 19 (b) is the profile along the A-A line of Figure 19 (a).Figure 20 is the B-B line along Figure 19 (a) and (b), the expanded view of promptly launching along through hole 29.The part mark identical label identical with Figure 12,13 (a) and (b), Figure 14 of the 6th execution mode.
The 8th execution mode is being prerequisite at the 6th execution mode shown in Figure 12,13 (a) and (b), Figure 14; Near the reductor opposition side peristome 29b of through hole 29; Shown in figure 20, setting is confused from the barrier 48 of the oil of the reductor opposition side peristome 29b outflow of through hole 29.
Except the thing 48 of placing obstacles, the structure that other is all identical with the 6th execution mode.Promptly; Among the deceleration pusher side inner peripheral surface 22a and reductor opposition side inner peripheral surface 22b that are separated by cross supporter 23; The inside diameter D 1 of inside diameter D 2 ' the ratio speed reducer side inner peripheral surface 22a of reductor opposition side inner peripheral surface 22b is big, and at cross supporter 23 through hole 29 of the straight tube-like that runs through cross supporter 23 is set on the installed surface of cross urceolus portion 22.6 through holes 29 equally spaced are set on the circumferencial direction of armature spindle 12.
Because the inside diameter D 1 of inside diameter D 2 ' the ratio speed reducer side inner peripheral surface 22a of reductor opposition side inner peripheral surface 22b is big, so the center line C of through hole 29 has the angle [alpha] (0 °＜α＜90 °) of regulation with respect to radially (above-below direction in Figure 18) of armature spindle 12.The reductor side opening 29a of portion of through hole 29 is to radially inner side (above-below direction in Figure 18) opening of armature spindle 12, and the reductor opposition side peristome 29b of through hole 29 is to axial (left in Figure 18) opening of armature spindle 12.
According to the 8th execution mode; Among the deceleration pusher side inner peripheral surface 22a and reductor opposition side inner peripheral surface 22b that are separated by cross supporter 23; The inside diameter D 1 of inside diameter D 2 ' the ratio speed reducer side inner peripheral surface 22a of reductor opposition side inner peripheral surface 22b is big; And the through hole 29 that runs through cross supporter 23 is set on the installed surface of cross urceolus portion 22 at cross supporter 23; And make the radially inner side opening of the reductor side opening 29a of portion of through hole 29 to armature spindle 12; Reductor opposition side peristome 29b of through hole 29 (through hole is the peristome of opposite side to the opposition side of a side) and the reductor side opening 29a of portion (through hole is to the peristome of a side) are arranged on along on the position that the circumferencial direction of armature spindle 12 staggers, and the oily barrier 48 that flows is confused in setting near the reductor opposition side peristome 29a of through hole 29 (through hole is the peristome of opposite side to the opposition side of a side).Like this, because the oil and the barrier 48 that are gone out from reductor opposition side peristome 29b collide, be divided into 2 directions, so reductor opposition side inner peripheral surface 22b is bigger than the situation of the 6th execution mode with the area that oil contacts.Like this, compare, improve the cooling performance of permanent magnet with the situation of the 6th execution mode.
(the 9th execution mode)
Figure 21 is the summary section of the motor 1 of the 9th execution mode, and Figure 22 is the profile along the A-A line of Figure 21.The part mark identical label identical with Fig. 1, Fig. 2 of the 1st execution mode.
Shown in figure 22, in rotor core 31, five equilibrium disposes 8 permanent magnets 51 with imbedding on the circumferencial direction of armature spindle 12.In this case, near armature spindle 12 radially inner sides of the permanent magnet 51 of the 9th execution mode permanent magnet 51, promptly the rear side at permanent magnet 51 is provided with the through hole 52 that section is a semicircle shape.Because the number of permanent magnet 51 is 8, so the number of through hole 52 also is 8.
Except the section shape and number of through hole 52, the structure that other is all identical with the 1st execution mode.That is, the through hole 52 that runs through cross supporter 23 is set on the installed surface of cross urceolus portion 22 at cross supporter 23.
Because the internal diameter of the internal diameter of deceleration pusher side inner peripheral surface 22a and reductor opposition side inner peripheral surface 22b equates, so the reductor side opening 52a of portion of through hole 52, reductor opposition side peristome 52b are all to axial (left and right directions in Figure 21) opening of armature spindle 12.
According to the 9th execution mode, at cross supporter 23 through hole 52 that runs through cross supporter 23 is set on the installed surface of cross urceolus portion 22, and near armature spindle 12 radially inner sides of the permanent magnet permanent magnet 51 51 are provided with through hole 52.Because permanent magnet 51 increases owing to eddy current losses causes heating, if temperature rises then has the possibility of demagnetize in addition, thus through being set, through hole 52 makes oil flow near permanent magnet 51, thus can cool off permanent magnet 51 effectively.
(the 10th execution mode)
Figure 23 is the summary section of the motor 1 of the 10th execution mode, and Figure 24 is the profile along the A-A line of Figure 23.The part mark identical label identical with Fig. 3 of the 2nd execution mode.But, oily guide portion 55 only is shown in Figure 24.
The 10th execution mode is a prerequisite with the 2nd execution mode, and for make whole basically with pinion 7 oil after lubricated supply with to reductor opposition side inner peripheral surface 22b, and oily guide portion 55 is set.That is, the cylindraceous oily guide portion 55 of the periphery that covers reductor 5 is fixed on the ring-type end plate 2b on right side, and the cross supporter 23 side opening end 55b of oily guide portion 55 are extended to the position that embeds cross urceolus portion 22.
From pinion 7 utilize centrifugal force and with the oil of the inner peripheral surface 55a of oily guide portion 55 and ring-type end plate 2b collision, along inner peripheral surface 55a and ring-type end plate 2b, utilize gravity and concentrate on the inner peripheral surface 55a of oily guide portion 55 bottoms.For the oil that will concentrate is supplied with to the through hole 25 that is arranged on the cross supporter 23; Be provided with in the bottom of oily guide portion 55 to deceleration pusher side inner peripheral surface 22a extend and with the contacted position 55c of deceleration pusher side inner peripheral surface 22a, and on the 55c of this position, form groove 55d (with reference to Figure 24).
According to the 10th execution mode, because the cylindraceous oily guide portion 55 of the periphery that covers reductor 5 is set, thus concentrated by oily guide portion 55 to the oil that disperses away from cross 21 sides from pinion 7, and flow to the through hole 25 that is arranged on the cross supporter 23.Like this, can be used in the oil mass maximum of cooling reductor opposition side inner peripheral surface 22b.
In execution mode, the situation that is provided with reductor 5 is illustrated, but does not have reductor 5 also passable.As long as have oily feed unit from oil to deceleration pusher side inner peripheral surface 22a (the urceolus portion inner peripheral surface of the side that supported body is separated) that supply with.
Claims (7)
1. motor, it has rotor, and this rotor has:
Armature spindle;
Rotor core cylindraceous, its be positioned to the outer circumferential side of armature spindle away from the position, permanent magnet is installed; And
Support component, its binding is also supported these armature spindles and rotor core,
It is characterized in that,
Said support component constitutes along the discoid supporter that axially is separated into 2 parts of armature spindle by the urceolus portion on the inner peripheral surface that is fixed in rotor core with this urceolus portion,
Have oily feed unit from oil to the urceolus portion inner peripheral surface of a side of separating by said supporter that supply with,
On the installed surface of said urceolus portion, the through hole that runs through supporter is set at said supporter.
2. motor according to claim 1 is characterized in that,
Among 2 urceolus portion inner peripheral surfaces being separated by said supporter, with the diameter of the urceolus portion inner peripheral surface of a said side, the opposition side of a said side is that the internal diameter of urceolus portion inner peripheral surface of opposite side is bigger.
3. motor according to claim 1 is characterized in that,
The internal diameter of said urceolus portion inner peripheral surface; Begin to dwindle gradually from the axial two ends of the armature spindle of said urceolus portion to the axial inboard of armature spindle; And the axial location along armature spindle of the part that the internal diameter of urceolus portion inner peripheral surface is minimum, than said supporter more near a said side.
4. motor according to claim 2 is characterized in that,
The opposition side to a said side of said through hole is the peristome of opposite side opening, compares with the peristome to a said side opening of said through hole, and is longer on the armature spindle circumferencial direction, and directly upwards shorter at armature spindle.
5. motor according to claim 2 is characterized in that,
Said through hole to the opposition side of a said side be peristome and the said through hole of opposite side opening to the peristome of a said side opening, be arranged on along on the position that the circumferencial direction of armature spindle staggers.
6. motor according to claim 5 is characterized in that,
Said through hole is that the 2nd through hole of opposite side constitutes by the opposition side of the 1st through hole of a said side and a said side; Wherein the center line of the 1st through hole is with respect to armature spindle circumferencial direction angulation, and is littler with respect to armature spindle circumferencial direction angulation than the center line of the 2nd through hole.
7. motor according to claim 5 is characterized in that,
At said through hole be to the opposition side of a said side opposite side opening peristome near, the barrier that flows that confuses oil is set.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2010-247571 | 2010-11-04 | ||
| JP2010247571A JP5728892B2 (en) | 2010-11-04 | 2010-11-04 | motor |
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| CN202309288U true CN202309288U (en) | 2012-07-04 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2011204350896U Expired - Lifetime CN202309288U (en) | 2010-11-04 | 2011-11-04 | Motor |
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| JP (1) | JP5728892B2 (en) |
| CN (1) | CN202309288U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103872850A (en) * | 2014-04-11 | 2014-06-18 | 陶择 | Motor |
| CN111480284A (en) * | 2017-12-18 | 2020-07-31 | 日本电产株式会社 | Motor unit and in-wheel motor |
| TWI706624B (en) * | 2019-03-20 | 2020-10-01 | 東元電機股份有限公司 | Motor circulating cooling system and oil cooled motor structure |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5968487B1 (en) | 2015-04-03 | 2016-08-10 | 三菱電機株式会社 | Rotating electric machine |
| JP6190910B1 (en) * | 2016-03-29 | 2017-08-30 | 三菱電機株式会社 | Rotating electric machine |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS521404A (en) * | 1975-06-24 | 1977-01-07 | Toshiba Corp | Rotary electric machine |
| JPH06105492A (en) * | 1992-09-25 | 1994-04-15 | Toshiba Corp | Induction main motor |
| JP2001025209A (en) * | 1999-07-05 | 2001-01-26 | Nissan Motor Co Ltd | Rotor of motor |
| DE202004019745U1 (en) * | 2004-12-22 | 2005-02-24 | Strahmann, Lüder, Dipl.-Kfm. | Vortexing device for improving fluids |
| JP4550631B2 (en) * | 2005-03-11 | 2010-09-22 | 本田技研工業株式会社 | Wheel drive device for vehicle |
| JP5367276B2 (en) * | 2008-02-20 | 2013-12-11 | 本田技研工業株式会社 | Lubrication cooling structure of electric motor |
| JP5167868B2 (en) * | 2008-03-03 | 2013-03-21 | 日産自動車株式会社 | Electric motor |
| JP2009296772A (en) * | 2008-06-04 | 2009-12-17 | Toyota Motor Corp | Cooling device for coil end of rotary electric machine |
-
2010
- 2010-11-04 JP JP2010247571A patent/JP5728892B2/en active Active
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2011
- 2011-11-04 CN CN2011204350896U patent/CN202309288U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103872850A (en) * | 2014-04-11 | 2014-06-18 | 陶择 | Motor |
| CN111480284A (en) * | 2017-12-18 | 2020-07-31 | 日本电产株式会社 | Motor unit and in-wheel motor |
| TWI706624B (en) * | 2019-03-20 | 2020-10-01 | 東元電機股份有限公司 | Motor circulating cooling system and oil cooled motor structure |
Also Published As
| Publication number | Publication date |
|---|---|
| JP5728892B2 (en) | 2015-06-03 |
| JP2012100477A (en) | 2012-05-24 |
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Granted publication date: 20120704 |