CN206370738U - Motor case, motor and vehicle - Google Patents
Motor case, motor and vehicle Download PDFInfo
- Publication number
- CN206370738U CN206370738U CN201720102934.5U CN201720102934U CN206370738U CN 206370738 U CN206370738 U CN 206370738U CN 201720102934 U CN201720102934 U CN 201720102934U CN 206370738 U CN206370738 U CN 206370738U
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- Prior art keywords
- tubular
- inner sleeve
- motor case
- motor
- overcoat
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Abstract
The utility model is related to machine field, a kind of motor case, motor and vehicle are provided, the motor case includes the tubular overcoat of tubular inner sleeve and fixed cover located at the outside of the tubular inner sleeve, wherein, the tubular inner sleeve and the tubular overcoat form as one, and thermal coefficient of expansion of the thermal coefficient of expansion less than the tubular overcoat of the tubular inner sleeve.Motor casing structure described in the utility model is simple, assembling is easy, reduce the processing and manufacturing cost and assembly technology cost of motor case, and can avoid because the motor feels hot, the stator core caused by vibration or variation of ambient temperature loosens, and improves the stability and reliability of the motor with the motor case.
Description
Technical field
The utility model is related to machine field, more particularly to a kind of motor case, motor and vehicle.
Background technology
Motor is the important motivity source of electromechanical equipment, is had a wide range of applications in various industrial circles.For example in new energy
Source automotive field.
With the development of new-energy automobile technology, the motor of new-energy automobile towards high power, high power density, big turn round
Square, high rotating speed, the direction of high integration are continued to develop.Compared with conventional motors, New energy automobile motor also needs to meet in automobile
Vibrations, temperature change etc. it is a series of under the conditions of it is normal use, and with the raising of Motor torque, rotating speed, to motor
The requirement of the cooperation firmness of casing and stator also more and more higher.
The motor case of new-energy automobile in tradition generally uses aluminum alloy materials, and stator core generally uses silicon steel material
Material, causes the thermal coefficient of expansion of motor case to be more than stator core, causes stator core and motor machine in motor operation adstante febre
The magnitude of interference between shell diminishes, and causes stator core to there is very big loosening risk under motor oscillating.In order to reduce stator iron
The loosening risk of core, generally by the matching design between motor case and stator core into the larger interference fit of the magnitude of interference, and
The big magnitude of interference can produce harmful effect to motor case intensity；Or additionally increase the locking modes such as screw to avoid stator iron
The loosening of core, but this can make the structure of motor more complicated, improve the design cost and process costs of motor.
Thus, it is desirable to have a kind of motor case can overcome or at least mitigate the drawbacks described above of prior art.
Utility model content
In view of this, the utility model is directed to a kind of motor case, to avoid motor case from being influenceed by temperature change
Cause stator core to loosen, and simplify the structure of motor case.
To reach above-mentioned purpose, what the technical solution of the utility model was realized in：
A kind of motor case, wherein, the motor case includes tubular inner sleeve and fixed cover located at the tubular inner sleeve
The tubular overcoat in outside, wherein, the tubular inner sleeve and the tubular overcoat form as one, and the tubular inner sleeve is hot swollen
Swollen coefficient is less than the thermal coefficient of expansion of the tubular overcoat.
Further, the motor case includes following at least one mode：
Mode one, the tubular overcoat is molded in the periphery of the preforming tubular inner sleeve；
Mode two, the tubular overcoat is aluminium alloy overcoat, the steel inner sleeve of the tubular inner sleeve；
Stator core positioning boss is formed with the inside of mode three, the tubular inner sleeve.
Further, it is formed with clamping location structure between the tubular inner sleeve and the tubular overcoat.
Further, the clamping location structure includes being formed at the projection of the periphery of the tubular inner sleeve and is formed at institute
State the groove being engaged with the projection of the inner circumferential of tubular overcoat.
Further, along the length direction of the tubular inner sleeve, the first end of the tubular inner sleeve and the second end difference are equal
Even to be provided with multiple projections, the corresponding position of the tubular overcoat is formed with multiple grooves.
Further, the projection is formed as T-shaped projection, and the groove type turns into the T-shaped corresponding with the T-shaped projection
Groove.
Further, circumferential direction of the lateral projections portion at the "T"-shaped top of the T-shaped projection along the tubular inner sleeve is set
Put.
Further, the tubular overcoat has been internally formed clamping groove, and the tubular inner sleeve is arranged at the clamping
In groove, and the both sides end face and outer peripheral face of the tubular inner sleeve are coated by the tubular overcoat.
Relative to prior art, motor case described in the utility model has the advantage that：
Motor casing structure described in the utility model is simple, assembling is easy, reduces the processing and manufacturing cost of motor case
With assembly technology cost, and can avoid because the motor feels hot, the stator core caused by vibration or variation of ambient temperature loosens, carry
The stability and reliability of motor of the height with the motor case.
Another object of the present utility model is to propose a kind of motor, to improve the stability and reliability of motor.
To reach above-mentioned purpose, what the technical solution of the utility model was realized in：
A kind of motor, wherein, the motor is provided with according to motor case described above and is sheathed on the motor machine
The stator core of the inside of shell, wherein, it is between the peripheral outer wall of the inner circumferential wall of the motor case and the stator core
Interference fit.
The motor has the advantage that identical with above-mentioned motor case relative to prior art, will not be repeated here.
A further object of the present utility model is to propose a kind of vehicle, with the stability of the motor that improves vehicle and reliable
Property.
To reach above-mentioned purpose, what the technical solution of the utility model was realized in：
A kind of vehicle, wherein, the vehicle is provided with according to motor described above.
The vehicle has the advantage that identical with above-mentioned motor relative to prior art, will not be repeated here.
Other features and advantages of the utility model will be described in detail in subsequent embodiment part.
Brief description of the drawings
Constitute a part of accompanying drawing of the present utility model to be used for providing further understanding to of the present utility model, this practicality is new
The exemplary embodiment of type and its illustrate be used for explain the utility model, do not constitute to it is of the present utility model it is improper limit.
In the accompanying drawings：
Fig. 1 is the schematic perspective view of the motor case according to a kind of embodiment of the present utility model, wherein, stator
The motor case is internally provided with stator core；
Fig. 2 is the schematic elevation view of the motor case shown in Fig. 1；
Fig. 3 is sectional view of the motor case along hatching A-A shown in Fig. 2；
Fig. 4 is the schematic perspective view of the tubular overcoat of the motor case shown in Fig. 1；
Fig. 5 is the schematic elevation view of the tubular overcoat shown in Fig. 4；
Fig. 6 is sectional view of the tubular overcoat along the existing B-B of section shown in Fig. 5；
Fig. 7 is the schematic perspective view of the tubular inner sleeve of the motor case shown in Fig. 1.
Description of reference numerals：
1- motor cases, 11- tubular overcoats, 111- grooves, 112- clamping grooves, 12- tubular inner sleeves, 121- projections,
122- iron core positioning boss, 2- stator cores.
Embodiment
It should be noted that in the case where not conflicting, the spy in embodiment and embodiment in the utility model
Levying to be mutually combined.
Below with reference to the accompanying drawings and combine embodiment and describe the utility model in detail.
According to one side of the present utility model there is provided a kind of motor case, referring to Fig. 1, Fig. 2 and Fig. 3, motor case 1
The tubular overcoat 11 in the outside of tubular inner sleeve 12 is located at including tubular inner sleeve 12 and fixed cover, wherein, tubular inner sleeve 12 and tubular
Overcoat 11 forms as one, and thermal coefficient of expansion of the thermal coefficient of expansion less than tubular overcoat 11 of tubular inner sleeve 12.
The tubular inner sleeve 12 and tubular overcoat 11 of motor case 1 described in the utility model form as one, simple in construction,
Assembling is easy, reduces the processing and manufacturing cost and assembly technology cost of motor case 1, and the thermal coefficient of expansion of tubular inner sleeve 12
Smaller, i.e. the temperature distortion of tubular inner sleeve 12 is smaller, can avoid because the motor feels hot, determining caused by vibration or variation of ambient temperature
Sub- iron core 2 loosens, and improves the stability and reliability of the motor with the motor case 1.
The molding mode of tubular inner sleeve 12 and tubular overcoat 11 can carry out any appropriate selection, example according to actual conditions
Such as, tubular inner sleeve 12 and tubular overcoat 11 are integrated by fusion welds.Preferably, tubular overcoat 11 is molded in preforming cylinder
The periphery of shape inner sleeve 12 so that tubular overcoat 11 and tubular inner sleeve 12 are integrally formed, simplifies the forming step of motor case 1, and
Improve the intensity and reliability of motor case 1.Specifically, when motor case 1 is manufactured, tubular inner sleeve 12 is cast first, then will
The outer surface of the first preforming tubular inner sleeve 12 of aluminium liquid parcel of melting, makes tubular inner sleeve 12 be integrally formed with tubular overcoat 11.
The material of tubular overcoat 11 and tubular inner sleeve 12 can carry out any appropriate selection according to actual needs, it is preferable that
Tubular overcoat 11 is that aluminium alloy overcoat, the steel inner sleeve of tubular inner sleeve 12, aluminum alloy materials lighter weight, and heat dispersion are more preferable,
Can in time by motor operation when the heat that produces shed, the intensity and hardness of Steel material are higher, can avoid in assembling stator
Mating surface is scratched during iron core 2, the fit precision of motor case 1 and stator core 2 is improved, and motor case 1 can also be improved
Intensity, rigidity, improve with the motor case 1 motor resistance to shock and NVH performances.
Preferably, referring to shown in Fig. 3 and Fig. 7, the inner side of tubular inner sleeve 12 is formed with stator core positioning boss 122, with
Located stator core 2, improves the assembly precision of stator core 2, and can prevent axial direction of the stator core 2 along motor case 1 from altering
It is dynamic.
Preferably, clamping location structure is formed between tubular inner sleeve 12 and tubular overcoat 11, the clamping location structure can
Prevent axial float of the tubular inner sleeve 12 in stress and circumferentially rotate, further improve the reliability of motor case 1.
The clamping location structure can select any appropriate structure according to actual needs, can position the He of tubular inner sleeve 12
Tubular overcoat 11.Preferably, referring to Fig. 4, Fig. 5, Fig. 6 and Fig. 7, the clamping location structure includes being formed at tubular inner sleeve
The projection 121 of 12 periphery and be formed at tubular overcoat 11 inner circumferential the groove 111 being engaged with projection 121, the projection 121
The concave-convex fit structure formed with groove 111 can effectively prevent axial float during tubular 12 stress of inner sleeve from turning with circumferential
It is dynamic.It is further preferred that along the length direction of tubular inner sleeve 12, the first end of tubular inner sleeve 12 and the second end are uniformly arranged respectively
There are multiple projections 121, the corresponding position of tubular overcoat 11 is formed with multiple grooves 111, further to improve clamping positioning knot
The positioning precision and intensity of structure, and then the reliability and stability of motor case 1 are improved, and cause each portion of tubular inner sleeve 12
The suffered stress in position is more uniform.
The shape of projection 121 and groove 111 can select any appropriate shape according to actual needs, for example, rectangle, circle
Or abnormity etc..Preferably, projection 121 is formed as T-shaped projection, and groove 111 is formed as the T-shaped corresponding with the T-shaped projection
Groove, T-shaped projection and groove structure rule, and the circumferential and axial of tubular inner sleeve 12 and tubular overcoat 11 can be realized simultaneously
Good location.The arrangement of the T-shaped projection can carry out any appropriate selection according to actual needs, it is preferable that the T-shaped
Circumferential direction of the lateral projections portion at the "T"-shaped top of projection along tubular inner sleeve 12 is set.
Preferably, referring to Fig. 1, Fig. 3, Fig. 4 and Fig. 6, tubular overcoat 11 has been internally formed in clamping groove 112, tubular
Set 12 is arranged in clamping groove 112, and the both sides end face and outer peripheral face of tubular inner sleeve 12 are coated by tubular overcoat 11,
So that the outer peripheral face of motor case 1, inner peripheral surface and both sides end face neat appearance, it is to avoid between tubular overcoat 11 and tubular inner sleeve 12
Bonding station exposed to outside.Tubular inner sleeve 12 is additionally aided in addition, tubular inner sleeve 12 is arranged in clamping groove 112
Positioning, prevents its play after stress.
According to other side of the present utility model there is provided a kind of motor, referring to Fig. 1, Fig. 2 and Fig. 3, the motor is set
With good grounds motor case 1 described above and the stator core 2 for the inside for being sheathed on motor case 1, wherein, motor case 1
It is interference fit between inner circumferential wall and the peripheral outer wall of stator core 2, simplifies the mounting structure of stator core 2, without volume again
Other fixed structures such as outer setting flange, screw, crimping.
Because the thermal coefficient of expansion of tubular inner sleeve 12 is smaller so that the motor case 1 will not subtract because of motor operational heat
The magnitude of interference between small stator core 2 and motor case 1, so as to avoid loosening because the reasons such as high temperature, vibration produce stator core
Risk, and can by the magnitude of interference between motor case 1 and stator core 2 design it is smaller, and then reduce thermal sleeve stator
Temperature during iron core 2, improves efficiency of assembling, assembly cost is reduced, while avoiding the excessive magnitude of interference to the intensity of motor case 1
Adverse effect.
The conventional material of stator core 2 is silicon steel, in the preferred embodiment of the application, and tubular inner sleeve 12 is in steel
Set so that tubular inner sleeve 12 and the thermal coefficient of expansion of stator core 2 are closer to, it is to avoid because temperature change causes motor case
The magnitude of interference between 1 inwall and the outer wall of stator core 2 produces larger change.
According to another aspect of the present utility model there is provided a kind of vehicle, wherein, the vehicle is provided with according to above
Described motor, the vehicle has the advantage that identical with above-mentioned motor relative to prior art, will not be repeated here.
The foregoing is only better embodiment of the present utility model, not to limit the utility model, it is all
Within spirit and principle of the present utility model, any modification, equivalent substitution and improvements made etc. should be included in this practicality new
Within the protection domain of type.
Claims (10)
1. a kind of motor case, it is characterised in that the motor case (1) includes tubular inner sleeve (12) and fixed cover located at described
The tubular overcoat (11) in the outside of tubular inner sleeve (12), wherein, the tubular inner sleeve (12) and the tubular overcoat (11) formation
It is integrated, and thermal coefficient of expansion of the thermal coefficient of expansion less than the tubular overcoat (11) of the tubular inner sleeve (12).
2. motor case according to claim 1, it is characterised in that the motor case includes following at least one side
Formula：
Mode one, the tubular overcoat (11) is molded in the periphery of the preforming tubular inner sleeve (12)；
Mode two, the tubular overcoat (11) is aluminium alloy overcoat, the steel inner sleeve of the tubular inner sleeve (12)；
Stator core positioning boss (122) is formed with the inside of mode three, the tubular inner sleeve (12).
3. motor case according to claim 1 or 2, it is characterised in that outside the tubular inner sleeve (12) and the tubular
Clamping location structure is formed between set (11).
4. motor case according to claim 3, it is characterised in that the clamping location structure includes being formed at the cylinder
The projection (121) of the periphery of shape inner sleeve (12) and be formed at the tubular overcoat (11) inner circumferential with the projection (121) phase
The groove (111) of cooperation.
5. motor case according to claim 4, it is characterised in that along the length direction of the tubular inner sleeve (12), institute
The first end and the second end for stating tubular inner sleeve (12) are evenly arranged with multiple projections (121), the tubular overcoat respectively
(11) corresponding position is formed with multiple grooves (111).
6. motor case according to claim 4, it is characterised in that the projection (121) is formed as T-shaped projection, described
Groove (111) is formed as the T-shaped groove corresponding with the T-shaped projection.
7. motor case according to claim 6, it is characterised in that the lateral projections at the "T"-shaped top of the T-shaped projection
Circumferential direction of the portion along the tubular inner sleeve (12) is set.
8. motor case according to claim 3, it is characterised in that the tubular overcoat (11) has been internally formed clamping
Groove (112), the tubular inner sleeve (12) is arranged in the clamping groove (112), and the two of the tubular inner sleeve (12)
Side end face and outer peripheral face are coated by the tubular overcoat (11).
9. a kind of motor, it is characterised in that the motor is provided with the motor machine according to any one in claim 1-8
Shell (1) and be sheathed on the motor case (1) inside stator core (2), wherein, the motor case (1) week inwardly
It is interference fit between the peripheral outer wall of wall and the stator core (2).
10. a kind of vehicle, it is characterised in that the vehicle is provided with motor according to claim 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720102934.5U CN206370738U (en) | 2017-01-23 | 2017-01-23 | Motor case, motor and vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720102934.5U CN206370738U (en) | 2017-01-23 | 2017-01-23 | Motor case, motor and vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206370738U true CN206370738U (en) | 2017-08-01 |
Family
ID=59391362
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720102934.5U Active CN206370738U (en) | 2017-01-23 | 2017-01-23 | Motor case, motor and vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206370738U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111431317A (en) * | 2019-01-10 | 2020-07-17 | 建准电机工业股份有限公司 | Motor with a stator having a stator core |
| CN111463921A (en) * | 2020-05-15 | 2020-07-28 | 珠海格力节能环保制冷技术研究中心有限公司 | Compressor and air conditioner with same |
| JP2020202655A (en) * | 2019-06-10 | 2020-12-17 | 株式会社デンソー | Stator and rotary electric machine |
-
2017
- 2017-01-23 CN CN201720102934.5U patent/CN206370738U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111431317A (en) * | 2019-01-10 | 2020-07-17 | 建准电机工业股份有限公司 | Motor with a stator having a stator core |
| JP2020202655A (en) * | 2019-06-10 | 2020-12-17 | 株式会社デンソー | Stator and rotary electric machine |
| CN111463921A (en) * | 2020-05-15 | 2020-07-28 | 珠海格力节能环保制冷技术研究中心有限公司 | Compressor and air conditioner with same |
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| GR01 | Patent grant | ||
| GR01 | Patent grant |