CN211617418U - Salient-pole hub motor - Google Patents
Salient-pole hub motor Download PDFInfo
- Publication number
- CN211617418U CN211617418U CN201922422812.6U CN201922422812U CN211617418U CN 211617418 U CN211617418 U CN 211617418U CN 201922422812 U CN201922422812 U CN 201922422812U CN 211617418 U CN211617418 U CN 211617418U
- Authority
- CN
- China
- Prior art keywords
- silicon steel
- motor
- salient
- pole
- hub body
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Abstract
The utility model discloses a salient pole in-wheel motor, including the wheel hub body, be fixed in the rotor core on the wheel hub body, with rotor core complex stator core and motor shaft, stator core links firmly with the motor shaft through the iron core support, the outside of wheel hub body is provided with the end cover, the inboard is provided with the hubcap, the end cover, hubcap and motor shaft all pass through the bearing cooperation, be provided with the encoder on the motor shaft, be provided with the magnetic ring that matches with the encoder on the hubcap, rotor core includes that a plurality of clearance arranges into the annular silicon steel piece, it is equipped with the magnet steel to press from both sides between two adjacent silicon steel pieces, thereby form complete rotor ring, between silicon steel piece and the magnet steel, adopt the colloid to bond between the outer fringe of rotor. The hub motor improves the salient pole rate of the rotor, improves the power density of the motor, widens a motor efficiency platform, improves the continuous mileage of a vehicle and reduces the cogging torque of the motor by optimizing the structure of the rotor core.
Description
Technical Field
The utility model relates to an electric motor car field of making especially relates to a salient pole in-wheel motor.
Background
The wheel hub motor is a motor arranged in a wheel, and the wheel hub motor is characterized in that power, transmission and braking devices are integrated into a wheel hub, so that the mechanical part of an electric vehicle is greatly simplified. The energy and environmental problems are obvious, the electric automobile becomes the strategic key point of the automobile industry of all countries in the world, and the high-quality hub motor and the control system thereof are important research directions and hot spots in the field of home and abroad electrical engineering, and become an important development direction of the development of the electric automobile due to the obvious advantages. Under the condition of electric energy driving, factors such as electric energy conversion efficiency, motor weight, stability and service life are particularly important, so that the structure of the motor needs to be further optimized, and the performance of the motor needs to be improved.
SUMMERY OF THE UTILITY MODEL
Based on above, the utility model provides a salient pole in-wheel motor improves the motor performance.
In order to achieve the purpose, the utility model adopts the following technical proposal:
a salient-pole hub motor comprises a hub body, a rotor core fixed on the hub body, a stator core matched with the rotor core and a motor shaft, wherein the stator core is fixedly connected with the motor shaft through a core support, an end cover is arranged on the outer side of the hub body, a hub cover is arranged on the inner side of the hub body, the end cover and the hub cover are matched with the motor shaft through bearings, an encoder is arranged on the motor shaft, a magnetic ring matched with the encoder is arranged on the hub cover, the rotor core comprises a plurality of silicon steel blocks which are arranged in a circular ring shape in a clearance mode, magnetic steel is clamped between every two adjacent silicon steel blocks to form a complete rotor ring, and the outer edge of the rotor ring is fixedly connected with the inner edge of the hub body through.
Furthermore, a first groove for increasing the adhesive effect of the adhesive is arranged on the edge of the silicon steel block, which is close to the hub body.
Furthermore, a second groove is arranged on the edge of the silicon steel block close to the stator core.
Furthermore, a concave part is arranged on the side edge of the silicon steel block, which is attached to the magnetic steel, so that a magnetic separation air gap is formed between the silicon steel block and the magnetic steel.
Furthermore, a convex part for limiting the magnetic steel is arranged at the side end of the silicon steel block close to the stator iron core.
Furthermore, the silicon steel block is provided with a through hole for reducing the cogging torque, and the through hole is arranged in a triangular shape for guiding the magnetic path.
Furthermore, the silicon steel block is formed by stacking a plurality of silicon steel sheets, a plurality of buckling points are arranged on the silicon steel sheets, and adjacent silicon steel sheets are sequentially buckled through the buckling points.
Further, the colloid is any one of anaerobic adhesive, AB adhesive or epoxy adhesive.
Furthermore, a winding on the stator core is wound in a single-wire parallel connection mode, so that the copper filling rate of the stator is improved.
Furthermore, an inflation inlet is formed in the hub body, the inflation inlet extends to the inner side surface from the outer side surface of the hub body, the inflation inlet comprises a threaded hole and a conical hole from outside to inside, the inflation inlet is matched with the inflating valve to be used, the head end of the inflating valve corresponds to the conical hole and is arranged in a pyramid part, an external thread is arranged in the corresponding threaded hole, an annular groove is formed in the pyramid part, and a sealing ring is embedded in the annular groove.
To sum up, the beneficial effects of the utility model are that, compared with the prior art, salient pole wheel hub motor is mainly through optimizing rotor core structure and each part overall arrangement to improve rotor salient pole rate, improve motor power density, widen the motor efficiency platform, improve the vehicle and continue the mileage, reduce motor tooth's socket torque, reduce the whole weight of motor, thereby reach the purpose that improves the motor performance.
Drawings
Fig. 1 is a schematic structural diagram of a salient-pole in-wheel motor provided in embodiment 1 of the present invention;
fig. 2 is a schematic cross-sectional view of a salient-pole in-wheel motor provided in embodiment 1 of the present invention;
fig. 3 is a schematic view of an installation of a rotor core and a hub body in a salient-pole hub motor provided in embodiment 1 of the present invention;
fig. 4 is a schematic structural diagram of a rotor core in a salient-pole in-wheel motor provided in embodiment 1 of the present invention;
FIG. 5 is a schematic view of the silicon steel block of FIG. 4;
fig. 6 is a schematic structural diagram of a valve inside a salient-pole in-wheel motor provided in embodiment 1 of the present invention;
fig. 7 is a schematic view of an installation of a rotor core and a hub body in a salient-pole hub motor provided in embodiment 2 of the present invention;
fig. 8 is a schematic structural diagram of a rotor core in a salient-pole in-wheel motor provided in embodiment 2 of the present invention;
FIG. 9 is a schematic structural view of the silicon steel block of FIG. 8;
fig. 10 is a schematic view illustrating an installation of a rotor core and a hub body in a salient-pole hub motor provided in embodiment 3 of the present invention;
fig. 11 is a schematic structural diagram of a rotor core in a salient-pole in-wheel motor provided in embodiment 3 of the present invention;
FIG. 12 is a schematic view of the silicon steel block of FIG. 11.
Detailed Description
The technical solution of the present invention is further explained by the following embodiments with reference to the accompanying drawings.
Example 1:
referring to fig. 1 to 6, the present embodiment provides a salient-pole hub motor, which includes a hub body 1, a rotor core 2 fixed on the hub body 1, a stator core 3 matched with the rotor core 2, and a motor shaft 4, wherein the stator core 3 is fixedly connected with the motor shaft 4 through a core support 5, an end cover 6 is disposed on an outer side of the hub body 1, a hub cover 7 is disposed on an inner side of the hub body, the end cover 6, the hub cover 7 and the motor shaft 4 are all matched through a bearing, an encoder 8 is disposed on the motor shaft 4, and a magnetic ring 9 matched with the encoder 8 is disposed on the hub cover 7.
The rotor core 2 includes a plurality of silicon steel blocks 10 arranged in a ring shape with gaps, a magnetic steel 11 is sandwiched between two adjacent silicon steel blocks 10 to form a complete rotor ring, the silicon steel blocks 10 and the magnetic steel 11 are fixedly bonded by a colloid, the outer edge of the rotor ring and the inner edge of the hub body 1 are fixedly bonded by any one of an anaerobic adhesive, an AB adhesive or an epoxy adhesive.
And the winding on the stator iron core 3 is wound in a single-wire parallel connection mode to improve the copper filling rate of the stator. Compared with a multi-wire series connection mode, the single-wire parallel connection mode can fully utilize the area of the winding slot, so that the copper filling rate of the enameled wire is improved from 42.9% to 52.45%, the internal resistance of the motor is reduced, and the output torque is improved.
The edge of the silicon steel block 10, which is close to the hub body 1, is provided with a first groove 12 for increasing the adhesive effect of the adhesive, and is used for accommodating a certain amount of adhesive.
The edge of the silicon steel block 10 close to the stator core 3 is provided with a second groove 13, the second groove 13 can increase the salient pole rate of the motor, reduce the cogging torque, and can be used as a process positioning groove.
The side edge of the silicon steel block 10, which is attached to the magnetic steel 11, is provided with a concave part 14, so that a magnetic separation air gap 15 is formed between the silicon steel block 10 and the magnetic steel 11, the concave part 14 is positioned at the side end of the silicon steel block 10, which is attached to the hub body 1, magnetic leakage is reduced, molding is facilitated, and the magnetic steel 11 is also convenient to assemble,
the side end of the silicon steel block 10 close to the stator core 3 is provided with a convex part 16 for limiting the magnetic steel 11, and the convex part 16 can reduce the cogging torque, improve the salient pole rate of the motor and resist the centrifugal force of the magnetic steel 11 during rotation.
The silicon steel block 10 is provided with a through hole 17 for reducing cogging torque, and the through hole 17 is arranged in a triangular shape for guiding the magnetic path. The through hole 17 changes the trend of a magnetic circuit, improves the magnetic gathering capacity, reduces the magnetic leakage, effectively reduces the torque of the tooth socket, and can be used as a process positioning hole.
The silicon steel block 10 is formed by stacking a plurality of silicon steel sheets, a plurality of fastening points 18 are arranged on the silicon steel sheets, and adjacent silicon steel sheets are fastened in sequence through the fastening points 18. The buckling point 18 is rectangular, when the silicon steel sheets are laminated, the buckling point 18 of the upper silicon steel sheet is clamped in the buckling point 18 of the lower silicon steel sheet to form self-buckling, the original rivet positioning mode is replaced, the structure is convenient to self-buckle, and the relative rivet positioning precision is higher.
In addition, the hub body 1 is provided with an inflation inlet 19, the inflation inlet 19 extends from the outer side surface of the hub body 1 to the inner side surface, and comprises a threaded hole and a tapered hole 20 from outside to inside, the inflation inlet 19 is matched with the inflating valve 21 for use, the head end of the inflating valve 21 is arranged in a cone shape corresponding to the tapered hole 20, an external thread is arranged corresponding to the threaded hole, an annular groove is formed in the cone shape, and a sealing ring 22 is embedded in the annular groove. The taper structure of the inflation inlet 19 is matched with the inflating valve 21 with a special structure to achieve a sealing effect, and the structure is different from the conventional inflating valve 21 and is suitable for occasions with narrow rim space.
Example 2:
referring to fig. 7 to 9, the present embodiment provides a salient-pole hub motor, and proposes another rotor structure based on embodiment 1.
The silicon steel block of the rotor omits a concave part 14 and a convex part 16, and the density distribution quantity is improved, and the silicon steel block and the stator have the same teeth, so that the usage amount of the magnetic steel 11 is increased, the magnetic flux of the permanent magnet is improved, the power density of the motor is improved, and the silicon steel block is convenient to punch and form.
Example 3:
referring to fig. 10 to 12, the present embodiment provides a salient-pole hub motor, and proposes another rotor structure based on embodiment 1.
The silicon steel block of the rotor is provided with a third groove 23 at the convex part 16 to reduce stress, enhance stress resistance effect and improve the salient pole rate of the motor. In addition, a plurality of round buckling points 18 are arranged around the through hole 17, so that the positioning precision is higher.
In summary, the salient-pole hub motor mainly improves the salient pole rate of the rotor, improves the power density of the motor, widens a motor efficiency platform, improves the vehicle continuous mileage, reduces the cogging torque of the motor, reduces the overall weight of the motor by optimizing the structure of the rotor core and the layout of each component, and thus achieves the purpose of improving the performance of the motor.
The above embodiments have been merely illustrative of the basic principles and features of the present invention, and the present invention is not limited by the above embodiments, and does not depart from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (10)
1. The utility model provides a salient pole wheel hub motor, includes the wheel hub body, is fixed in rotor core on the wheel hub body, with rotor core complex stator core and motor shaft, stator core pass through the iron core support with the motor shaft links firmly, the outside of wheel hub body is provided with the end cover, and the inboard is provided with the hubcap, end cover, hubcap with the motor shaft all passes through the bearing cooperation, be provided with the encoder on the motor shaft, be provided with on the hubcap with the magnetic ring that the encoder matches, its characterized in that, rotor core includes that a plurality of clearance arranges into the annular silicon steel piece, presss from both sides between two adjacent silicon steel pieces and is equipped with the magnet steel to form complete rotor ring, the silicon steel piece with adopt the colloid bonding to link firmly between the magnet steel, between the outer fringe of rotor ring and the inner edge of.
2. The salient-pole in-wheel motor of claim 1, wherein: the edge of the silicon steel block, which is attached to the hub body, is provided with a first groove for increasing the adhesive effect of the adhesive.
3. The salient-pole in-wheel motor of claim 1, wherein: and a second groove is arranged on the edge of the silicon steel block close to the stator iron core.
4. The salient-pole in-wheel motor of claim 1, wherein: the side edge of the silicon steel block, which is attached to the magnetic steel, is provided with a concave part, so that a magnetic isolation air gap is formed between the silicon steel block and the magnetic steel.
5. The salient-pole in-wheel motor of claim 1, wherein: and a convex part for limiting the magnetic steel is arranged at the side end of the silicon steel block close to the stator iron core.
6. The salient-pole in-wheel motor of claim 1, wherein: the silicon steel block is provided with a through hole for reducing the cogging torque, and the through hole is triangular for guiding the magnetic path.
7. The salient-pole in-wheel motor of claim 1, wherein: the silicon steel block is formed by stacking a plurality of silicon steel sheets, a plurality of buckling points are arranged on the silicon steel sheets, and adjacent silicon steel sheets are sequentially buckled through the buckling points.
8. The salient-pole in-wheel motor of claim 1, wherein: the colloid is any one of anaerobic adhesive, AB adhesive or epoxy adhesive.
9. The salient-pole in-wheel motor of claim 1, wherein: and the winding on the stator core is wound in a single-wire parallel connection mode so as to improve the copper filling rate of the stator.
10. The salient-pole in-wheel motor of claim 1, wherein: the improved inflating valve is characterized in that an inflating opening is formed in the hub body, the inflating opening extends to the inner side surface from the outer side surface of the hub body, and comprises a threaded hole and a conical hole from outside to inside, the inflating opening is matched with an inflating valve for use, the head end of the inflating valve corresponds to the conical hole, the conical hole is arranged to be a pyramid portion and corresponds to the conical hole, an external thread is arranged on the threaded hole, an annular groove is formed in the pyramid portion, and a sealing ring is embedded into the annular.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922422812.6U CN211617418U (en) | 2019-12-28 | 2019-12-28 | Salient-pole hub motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922422812.6U CN211617418U (en) | 2019-12-28 | 2019-12-28 | Salient-pole hub motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211617418U true CN211617418U (en) | 2020-10-02 |
Family
ID=72633397
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922422812.6U Active CN211617418U (en) | 2019-12-28 | 2019-12-28 | Salient-pole hub motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211617418U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021129222A1 (en) * | 2019-12-28 | 2021-07-01 | 雅迪科技集团有限公司 | Salient-pole hub motor |
-
2019
- 2019-12-28 CN CN201922422812.6U patent/CN211617418U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021129222A1 (en) * | 2019-12-28 | 2021-07-01 | 雅迪科技集团有限公司 | Salient-pole hub motor |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110920376A (en) | Salient-pole hub motor | |
| CN102570753B (en) | Permanent magnet harmonic motor | |
| CN106787322A (en) | A kind of wheel hub electric motor of electric vehicle | |
| CN211617418U (en) | Salient-pole hub motor | |
| CN204012963U (en) | High-power density external rotor DC brushless motor | |
| CN201854099U (en) | Synchronous gearless tractor and stator core thereof | |
| CN102170204A (en) | High-efficiency multi-stator permanent magnet direct-current motor | |
| CN201553026U (en) | Hybrid power wheel side driving device | |
| CN208316424U (en) | Wheel hub electric motor of electric vehicle | |
| CN107070028B (en) | Permanent magnet motor rotor with low magnetic leakage and motor | |
| CN210310748U (en) | Wheel hub motor assembly, wheel assembly and vehicle | |
| CN210142927U (en) | Stator core and in-wheel motor | |
| CN201750244U (en) | Permanent-magnetic motor rotor gathering magnetic flux in tangential direction | |
| CN210129779U (en) | Hub motor of electric vehicle | |
| CN103904853A (en) | Multi-stator power-generation electric all-in-one machine | |
| CN103840586A (en) | Permanent magnetic outer rotor hub motor | |
| CN102801231A (en) | Permanent magnet motor stator structure | |
| CN112953152A (en) | High salient pole ratio permanent magnet motor for electric motor | |
| CN205811825U (en) | A kind of outer rotor multi-disc type permanent magnet synchronous motor | |
| CN201611834U (en) | Motor of electric vehicle | |
| CN215300293U (en) | Electric motor car motor magnetic ring | |
| CN112910191B (en) | Manufacturing method of stator of in-wheel motor, in-wheel motor and electric vehicle | |
| CN213367544U (en) | Permanent magnet direct-drive outer rotor motor walking driving device for narrow gauge electric locomotive | |
| CN206528321U (en) | A kind of new-energy automobile hub motor structure | |
| CN206341047U (en) | The stator modules structure of magneto |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |