Embodiment
Following explanation is exemplary in nature, and anything but in order to limit the present invention, application of the present invention or purposes of the present invention.
In one embodiment, electric system has the stator core that is selected from multiple stator core.Electric system has hub to the hub length degree, and this length is to the length of the second hub installation site of motor second end from a hub installation site of motor first end.In the multiple stator core each has different stator core width.Stator core width is the distance between first stator core end and the second stator core end.In electric system, stator core width is the part of the hub of motor to the hub length degree.Bearing cap is selected from multiple bearing cap.In the multiple bearing cap each has different bearing cap length.Bearing cap length is the part of the hub of motor to the hub length degree.As the function of selected stator core width and bearing cap length, bearing cap is selected.Bearing cap can be constructed to be connected to the nave collar that is used to install a motor part.Motor also can have one or more end shields.After assembling, the hub of motor partly is the function of the length of the length of stator core width, one or more end shields and one or more end caps to the hub length degree.
Fig. 1 shows the example of an embodiment of a kind of bearing cap that is selected from multiple bearing cap according to one embodiment of present invention.In addition, Fig. 2 shows the bearing cap that representative has the multiple bearing cap of different bearing cap length with Fig. 3.In Fig. 2, clutch shaft bearing lid 200 has clutch shaft bearing lid length 202 and bearing cap radial dimension 204.Clutch shaft bearing lid 200 also can comprise one or more protrusions (tab) or adhere to attachment, shown in 206A-C.Second bearing cap 300 as shown in Figure 3 also is a kind of in the multiple bearing cap, and it is similar on design and radial dimension 204.Second bearing cap 300 also comprises protrusion or adheres to attachment 206A-C.Second bearing cap 300 is similar, compatible with the clutch shaft bearing lid, also can exchange.Unique different length that are bearing cap between clutch shaft bearing lid 200 and second bearing cap 300.In this example, the second bearing cap length 302 and clutch shaft bearing lid length 202 is different, and probably is shown and has bigger length.Multiple bearing cap can comprise other the bearing cap except that being illustrated as clutch shaft bearing lid 200 and second bearing cap 300.
Referring now to Fig. 4, comprise end shield 402 and bearing cap 404 according to the electric machine assembly 400 of an exemplary embodiment.End shield 402 and bearing cap 404 can be constructed to interconnect.Bearing cap 404 can have one or more structures that are connected to the part of end shield 402.This connection can be passed through any way, and can comprise interference fit, bonding, welding (welding), welding (soldering), screw connect (screwing), crooked, reverse or the like.For example, what go out as shown is such, and bearing cap inner edge 408 can be constructed to be connected to end shield outer surface 406.Again for example, bearing cap 404 can have one or more protrusions 410, and described protrusion is constructed to connect the part of end shield 402.As shown in the figure, end shield 404 can comprise protrusion groove, flange or the limit that is used for engage bearings lid protrusion 410, and for example 412.This joint of protrusion 410 can comprise bending (as shown in the figure), reverses, welding, bonding and welding.
Bearing cap 404 has bearing cap length 426.Bearing cap 404 is selected from multiple bearing cap 404, and each in the multiple bearing cap 404 has different bearing cap length 426.As the function of the length of stator core (not shown), the specific bearing cap 404 in the multiple bearing cap 404 that can be attached to end shield 402 is selected.
Electric machine assembly 400 also can comprise bearing 414, and this bearing can be enclosed in the inner chamber of bearing cap 404 in whole or in part.Bearing 414 can be the bearing of any kind, includes but not limited to: Babbitt bearing, powder metal bearings, ball bearing, white metal bearing, three metal bearings, two metal bearings, thrust bearing and roller bearing.This bearing can also for self aligned and turn around electric machine assembly 400 the axle (not shown).Electric machine assembly 400 also can comprise the retainer 416 that is used to keep bearing 414.As shown in the figure, retainer 416 can be positioned in the bearing cap 414, is used for engage bearings 414.For example, retainer 416 can be constructed to be positioned in the bearing cap 404, makes that retainer 416 is positioned between bearing cap 404 and the end shield 402 when bearing cap 404 is connected to end shield 402.Retainer 416 also can be constructed to be connected to bearing 414, makes bearing 414 be maintained at fixing under the pressure of retainer 416 or movably on the position.
Electric machine assembly 400 also can comprise the bearing cap outer cover 418 that can be connected to bearing cap 404.When being connected to bearing cap 404, bearing cap outer cover 418 can seal the inner chamber 422 in the bearing cap 404.In addition, bearing cap outer cover 418 can be constructed to wrap in or remain on bearing lubricant 424 in the inner chamber 422 and near bearing 414.
Bearing cap 404 can be constructed to engage hub assembly or other electric machine mounting devices.For example, as shown in the figure, nave collar 420 can be connected to bearing cap 404.In one embodiment, nave collar 420, bearing cap 404 and bearing cap outer cover 418 are constructed to make that when bearing cap outer cover 418 was connected to bearing cap 404, bearing cap 404 is fixed or joined to bearing cap outer cover 418 with nave collar 420 at least to a certain extent.
In Fig. 5, electric machine assembly 500 shows another embodiment according to electric machine assembly of the present invention.As shown in the figure, electric machine assembly 500 comprises stator core 502, and the stator core width 504 of stator core 502 is roughly the length between the 506 and second stator core surface 508, first stator core surface.In different embodiment, depend on the power that comprises electric machine assembly 500 and/or the different factor of torque request, stator core width 504 differences.Any known method or systems such as, staple bonding by comprising, bolt, screw (not shown) are connected to the first stator core surface 506 with end shield 510.End shield 510 has end shield length 511.Stator core 502 and end shield 510 are round axle 512.Axle 512 can rotate around axle central axis 513, and has first axle head 514 and second axle head 516.Bearing cap 518 is connected to end shield 510 and round axle 513.As discussed above, bearing cap 518 and end shield 510 can be configured, for use in comprise that interference fit (as shown in the figure), bonding, bolt connect, screw connects, pin connection, welding, protrusion fix (tabbing), staple connection, plug pin and any type of connection of (threading) (not shown) that is threaded.Bearing cap 518 has bearing cap length 520 and inner chamber 521.
Bearing 522 can be arranged in inner chamber 521, and around axle 512.Sleeve bearing has been shown among Fig. 5, but has it will be appreciated by those skilled in the art that bearing 522 can be the bearing of any kind.Retainer 524 can be arranged in bearing cap 518, so that keep or biasing bearing 522.In one embodiment, retainer 524 is constructed to be press-fitted under the tension force between the bearing cap 518 and end shield 510 of connection.In this case, when under tension force (tension) during by interference fit, retainer 524 can be around axle 512 and in bearing cap inner chamber 521 biasing or rigid bearing 522.
After assembling, the length of the partial of stator core 502, end shield 510 and bearing cap 518 has focal length 526 after the assembling of stator core width 504, end shield length 511 and bearing cap length 520.In other embodiments, in determining assembling rear motor length, also can comprise other motor components.In this exemplary device and as mentioned above, by from multiple stator core 502, selecting specific stator core, motor is assembled with different stator core width 504.In this case, from the multiple bearing cap 518 that has different bearing cap length 520 separately, select specific bearing cap.
In an application of electric machine assembly 500, partial length 526 is predefined.Therefore, when selecting to have the particular stator core 502 of particular stator core width 504 so that being assemblied in the electric machine assembly 500, must select to have the specific bearing cap 518 of specific bearing cap length 520, so that the length summation of each parts equals partial length 526.As in a preferred embodiment, it is shared that 510 pairs of all electric machine assemblies of end shield 500 are used, and has end shield length 511 standard or constant.Therefore, the selection of bearing cap 518 is functions of bearing cap length 520, and this bearing cap length 520 changes with the distance that is inversely proportional to any change width that is associated with the different in width of selected stator core.As an example, Fig. 1 shows a kind of such relation.
The motor version |
Stator core |
Stator core width |
Bearing cap |
The bearing cap width adjusting |
The pattern length standard |
1 |
SC
A |
0.875 |
BC
1 |
0.487 |
1.362 |
2 |
SC
B |
0.938 |
BC
2 |
0.424 |
1.362 |
3 |
SC
C |
1.000 |
BC
3 |
0.362 |
1.362 |
4 |
SC
D |
1.125 |
BC
4 |
0.237 |
1.362 |
5 |
SC
E |
1.250 |
BC
5 |
0.112 |
1.362 |
Table 1
In this example, there are five kinds of stator cores 502 having from 0.875 inch to 1.250 inches different stator core width.In order to make hub that stator module 500 abides by application-specific to the hub required distance, selection bearing cap 518 from multiple bearing cap 518 with multiple bearing cap length adjustment.In this example, stator core and bearing cap length summation must equal the pattern length standard, and this standard is 1.362 inches in this example.The hub that the application-specific that each miscellaneous part distance that this distance is an electric machine assembly 500 and electric machine assembly 500 are intended to be used for requires is to the function of hub length degree.As an example, in table 1, if desired or selected stator core SC
DBe used for the application of the pattern length of 1.362 inches of requirements, then select bearing cap BC
4, this be because 0.237 bearing cap length for this reason the particular combinations length standard essential bearing cap length 520 is provided.
With reference to Fig. 5, bearing cap 518 can be constructed to be connected to erecting device or nave collar 528 once again, and described erecting device or nave collar provide the assembling of electric machine assembly 500 or adhered in specific motor application.As shown in the figure, bearing cap 518 can be constructed to make that nave collar 528 is connected around the exterior face or surface of bearing cap 518.Electric machine assembly 500 also can comprise bearing cap outer cover 530.Bearing cap outer cover 530 can be configured, so that be connected to bearing cap 518 and turn around axle 512.This connection can be any type of connection, comprises that interference fit, bonding, screw connect, welding or the like.After being configured like this, bearing cap outer cover 530 can provide the closure of bearing cap inner chamber 521.In one embodiment, bearing cap outer cover 530, bearing cap 518 and nave collar 528 can be constructed to make when bearing cap outer cover 530 is connected to bearing cap 518, bearing cap outer cover 530 joints or fixing nave collar 528.
Fig. 5 also shows the further embodiment that can comprise various optional supplementary features and assembly.Electric machine assembly 500 also can comprise with a kind of second end shield 532 that is connected to the second stator core surface 508 in the method for above discussing at end shield 510.Second end shield 532 has second end shield length 534.Second bearing cap 536 also can be connected to second end shield 532 in one or more modes of above discussing at bearing cap 518 alternatively.Second bearing cap 536 has the second bearing cap length 538.Second bearing 536 can comprise the second bearing cap inner chamber 537.Second bearing 542 can be positioned at second inner chamber 537 and center on axle 512.Second retainer 544 also can be positioned at second inner chamber 537, and orientates at least a portion that keeps or fix second bearing 542 as.Second bearing cap 536 can be configured, so that be connected to second nave collar 546.In specific motor application, second nave collar 546 can provide further adhering to of electric machine assembly 500 or install.The second bearing cap outer cover 548 can be connected to second bearing cap 536 and center on axle 512.The second bearing cap outer cover 548 also can engage second nave collar 546 and can seal second inner chamber 537 at least in part.In an optional embodiment, lubricant 550 can be at least partially enclosed within second inner chamber 537 or the inner chamber 521.
In one embodiment, second end shield 532, second bearing cap 536, the second bearing cap outer cover 548, second nave collar 546, second bearing 542 and second retainer 544 are can be respectively different with retainer 524 with end shield 510, bearing cap 518, bearing cap outer cover 530, nave collar 528, bearing 522.Yet, in certain embodiments, one or more optional second parts, i.e. second end shield 532, second bearing cap 536, the second bearing cap outer cover 548, second nave collar 546, second bearing 542 and second retainer 544, can with foregoing corresponding component, be end shield 510, bearing cap 518, bearing cap outer cover 530, nave collar 528, bearing 522 and retainer 524, identical, interchangeable or similar.
In one embodiment, electric machine assembly 500 can fitted to be and have hub to hub length degree 540.Hub can comprise stator core length 504, end shield length 511, second end shield length 534, bearing cap length 520 and the second bearing cap length 538 except that other elements or parts to hub length degree 540.In a preferred embodiment, multiple stator core 502 assemblings of electric machine assembly 500 from having different stator core length 504.The end shield 510 and second end shield 532 have single design and single length, are respectively the end shield length 520 and second end shield length 534.As in certain embodiments, the hub of electric machine assembly 500 pre-determines to the application-specific of hub length degree 540 by electric machine assembly 500, can select in the bearing cap 518 and second bearing cap 536 one or the two, so that tackle selected a kind of change width in the multiple stator core 502.
In another embodiment, has one of the multiple bearing cap 518 of different bearing cap length 520 and one or two the selection that has in one of multiple second bearing cap 536 of the second different bearing cap length 538 can adapt to the function of multiple different hub to hub length degree 540 for making electric machine assembly 500.In the present embodiment, stator core width 504 is immutable.Yet the different application of electric machine assembly 500 may need the different hubs of motor to hub length degree 540.For the accommodation hub to hub length degree 540, one or two in bearing cap 518 and second bearing cap 536 can be selected from the multiple bearing cap with different bearing cap length.This assembling that is chosen as electric machine assembly 500 provides desirable hub to hub length degree 540.
Fig. 6 shows a kind of method of making motor according to one embodiment of the present invention.Usually, motor manufacturing method 600 starts from operating 602.In bearing cap selection operation 604,, select a kind of in the multiple bearing cap as the function of the length and the selected bearing cap length of selected stator core.In Fig. 6, multiple bearing cap in square frame 606A-C with three bearing cap BC
A, BC
B, BC
CIllustrate, each has different bearing cap length BCL respectively
A, BCL
B, BCL
CProvide in the multiple bearing cap each length to bearing cap selection operation 604.In addition, provide selected stator core SC to operation 604
SLength SCL
SAt multiple bearing cap BC
A, BC
B, BC
CIn a kind ofly be selected as having selected bearing cap length BCL
SSelected bearing cap BC
SAfterwards, in motor assembly manipulation 610, adopt SC
SAnd BC
SThe assembling motor.This can comprise end shield is attached to selected stator core SC
S, and with selected bearing cap BC
SBe attached to end shield.In optional embodiment, the inside branch of selected bearing cap can be press fit on the outer part of first end shield.Alternatively, one or more protrusions of end shield or bearing cap can be fixed bearing cap or join on the end shield.
In other execution mode, in selection operation 604, as two bearing cap length and selected stator core length SC
SThe function of the combination of length can be selected two or more bearing caps.One or two had inner surface in the bearing cap.In such embodiments, manufacture method can comprise the inner surface that the bearing cap outer cover is press fit into selected bearing cap.The bearing cap outer cover also can engage nave collar, keep or assist to be connected to the part of bearing cap.
Other manufacturing operation can comprise a kind of selection stator core from multiple stator core, and each in the multiple stator core has different stator core width.Other manufacturing operation can comprise: first end shield is attached to stator core, and selected bearing cap is attached to first end shield.In addition, this execution mode can be included on the side relative with first end shield of stator core second end shield is attached to stator core.Alternatively, this method can also comprise second bearing cap is connected to second end shield.In such execution mode, two end shields, bearing cap and stator cores can be motor provides predetermined hub to the hub length degree.
Have in the alternative method of inner chamber at selected bearing cap, bearing can be installed in the bearing cap inner chamber and center on axle.In addition, retainer can be positioned in the bearing cap inner chamber, and is crushed between end shield and the selected bearing cap, so that be connected to bearing.In certain embodiments, the inner chamber of bearing cap can be filled with bearing lubricant at least in part.
Other variations of execution mode shown in Figure 6 can comprise that the bearing cap of operation in 604 select, and this bearing cap is chosen as the function of the length of the stator core width of predetermined combination and one or more bearing caps.In other embodiments, selection operation 604 can be the function of predetermined hub to the hub motor length.
Fig. 7 shows the another kind of execution mode of the method for making motor.In this execution mode of motor manufacturing method 700, stator core is selected from multiple stator core equally, and every kind of stator core has different stator core width.Motor manufacturing method 700 starts from operating 702, wherein, in square frame 704, provides to have the first end shield length ESL
1The first end shield ES
1, and alternatively, in square frame 706, provide to have the second end shield length ESL
2The second end shield ES
2Stator core selection operation 708 is selected a kind of in the multiple stator core, as the stator core SC of square frame 710A-C shown in for example
X, SC
Y, SC
ZIn the multiple stator core each has different stator core length, as respectively by the SCL of square frame 710A-C shown in for example
X, SCL
Y, SCL
ZAs the motor characteristic of one or more hope or the requirement function of power or torque for example, select selected stator core SC
SSelected stator core SC
SHas the stator core length SCL that is associated
S
In case selected selected stator core SC
SAnd stator core length SCL
SKnown, then as selected stator core length SCL
SFunction, bearing cap selection operation 712 is selected a kind of in the multiple bearing cap.For example, in square frame 714-A-C as BC
A, BC
B, BC
CShow multiple bearing cap, wherein each has different bearing cap length BCL respectively
A, BCL
B, BCL
CEqually, as the function of the length of every kind of specific bearing cap in the multiple bearing cap, selection course is selected bearing cap.In case bearing cap selection operation 712 has been selected selected bearing cap BC
S, in motor assembly manipulation 720, assemble motor.Motor assembly manipulation 720 adopts selected stator core SC
SWith selected bearing cap BC
SThe assembling motor.
In optional embodiment, bearing cap selection operation 712 can arrive hub length degree HHL as the predetermined motor hub as shown in square frame 716 equally
PFunction select bearing cap SC
SIn another embodiment, bearing cap selection operation 712 can be equally as the predetermined bearing cap as shown in square frame 718 and the pattern length CL of stator core
PFunction select bearing cap SC
S
In certain embodiments, motor assembly manipulation 720 can comprise as shown in square frame 722 with selected end shield ES
SBe attached to selected stator core SC
SOperation.In addition, it can comprise selected bearing cap BC
SBe attached to selected end shield ES
SIt also can comprise the second end shield ES2 is attached to selected stator core SC
SOpposite side.The operation relevant with the assembling of top discussion and miscellaneous part well known in the prior art has been shown in the action block 728.
Although should be appreciated that and introduced aspect of the present invention or its various embodiment or execution mode, word " ", " one ", " being somebody's turn to do " and " described " are in order to represent one or more elements to be arranged.Term " comprises ", " comprising " and " having " comprising property, and means that except that listed element or aspect additional element or aspect can also be arranged.
Be appreciated that step recited above or operation should not be construed as necessarily require with discussed or shown particular order is carried out.Be further appreciated that and adopt step or operation additional or that substitute.
Owing to can make various changes in above-mentioned exemplary constructions and method and do not depart from the scope of the present invention, above-mentioned specification comprises or all the elements shown in the drawings should be interpreted as exemplary rather than determinate.