CN113904516A - Magnetic speed reducer for hub motor - Google Patents
Magnetic speed reducer for hub motor Download PDFInfo
- Publication number
- CN113904516A CN113904516A CN202111286435.3A CN202111286435A CN113904516A CN 113904516 A CN113904516 A CN 113904516A CN 202111286435 A CN202111286435 A CN 202111286435A CN 113904516 A CN113904516 A CN 113904516A
- Authority
- CN
- China
- Prior art keywords
- rotor
- stator
- hub motor
- speed reducer
- magnetic
- 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.)
- Granted
Links
- 239000003638 chemical reducing agent Substances 0.000 title claims abstract description 27
- 230000005540 biological transmission Effects 0.000 claims abstract description 14
- 238000007789 sealing Methods 0.000 claims description 12
- 230000005389 magnetism Effects 0.000 claims description 8
- 238000012423 maintenance Methods 0.000 abstract description 3
- 230000007613 environmental effect Effects 0.000 abstract description 2
- 239000012208 gear oil Substances 0.000 description 2
- 239000000696 magnetic material Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- 229910000976 Electrical steel Inorganic materials 0.000 description 1
- 229910001209 Low-carbon steel Inorganic materials 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000009365 direct transmission Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 229920006351 engineering plastic Polymers 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K16/00—Machines with more than one rotor or stator
- H02K16/02—Machines with one stator and two or more rotors
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K49/00—Dynamo-electric clutches; Dynamo-electric brakes
- H02K49/10—Dynamo-electric clutches; Dynamo-electric brakes of the permanent-magnet type
- H02K49/102—Magnetic gearings, i.e. assembly of gears, linear or rotary, by which motion is magnetically transferred without physical contact
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K49/00—Dynamo-electric clutches; Dynamo-electric brakes
- H02K49/10—Dynamo-electric clutches; Dynamo-electric brakes of the permanent-magnet type
- H02K49/104—Magnetic couplings consisting of only two coaxial rotary elements, i.e. the driving element and the driven element
- H02K49/106—Magnetic couplings consisting of only two coaxial rotary elements, i.e. the driving element and the driven element with a radial air gap
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
- H02K5/10—Casings or enclosures characterised by the shape, form or construction thereof with arrangements for protection from ingress, e.g. water or fingers
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
- H02K5/16—Means for supporting bearings, e.g. insulating supports or means for fitting bearings in the bearing-shields
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
Abstract
The invention discloses a magnetic speed reducer for a hub motor, which comprises: the first rotor is in transmission connection with the hub motor through a transmission piece; the second rotor is sleeved on the outer side of the first rotor and is in transmission connection with the hub motor; the stator is sleeved outside the second rotor; the stator shell is sleeved on the outer side of the stator and is connected with the stator through a fixing piece; the gear cover plate is arranged on the other side of the stator shell and is in assembly connection with the second rotor; the first rotor is provided with a first magnetic part, and the stator is provided with a second magnetic part, so that gaps are formed between the first rotor and the second rotor and between the second rotor and the stator. The application has the advantages of small loss, simple maintenance, no contact noise and difficult environmental influence. The magnetic speed reducer has the capabilities of reducing speed and increasing torque or increasing speed and reducing torque of the traditional mechanical gear speed reducer, and also has the overload protection capability which is not possessed by the traditional mechanical gear speed reducer.
Description
Technical Field
The invention relates to a speed reducer, in particular to a magnetic speed reducer for a hub motor.
Background
The speed reducer for the hub motor is a traditional mechanically-connected planetary gear type speed reducer, has the defects of high loss, need of changing gear oil regularly in the using process, complex maintenance, high contact noise, obvious environmental influence, no overload protection and the like.
Disclosure of Invention
For solving prior art's not enough, this application provides the magnetism reduction gear for wheel hub motor, include:
the first rotor is in transmission connection with the hub motor through a transmission piece;
the second rotor is sleeved on the outer side of the first rotor and is in transmission connection with the hub motor;
the stator is sleeved outside the second rotor;
the stator shell is sleeved on the outer side of the stator and is connected with the stator through a fixing piece;
the gear cover plate is arranged on the other side of the stator shell and is in assembly connection with the second rotor;
the first rotor is provided with a first magnetic part, and the stator is provided with a second magnetic part, so that gaps are formed between the first rotor and the second rotor and between the second rotor and the stator.
Further, first rotor still includes annular mounting bracket and first rotor core, first magnetism spare includes a plurality ofly and encircles mounting bracket circumference sets up, first rotor core is connected to the mounting bracket, the driving medium is for setting up first key on the mounting bracket for do not have relative motion between in-wheel motor and the first rotor, carry out the direct transmission of motion.
Furthermore, the second rotor comprises a first annular pressing plate, a second rotor core and a second annular pressing plate, the second rotor core comprises a plurality of second annular pressing plates, the second rotor core is arranged between the first annular pressing plates and the second annular pressing plates, and the hub motor is provided with a bearing connected with the first annular pressing plates, so that the second rotor and the hub motor move mutually through the bearing.
Further, the mounting is for setting up second key on the second magnetism spare, the stator still includes stator core, second magnetism spare is the annular setting, stator core includes a plurality ofly and sets up along the interior circumferencial direction of second magnetism spare, stator housing is last seted up with the keyway that the second key corresponds, stator housing still with in-wheel motor constitutes the be assembled between be connected for there is not relative motion between stator and in-wheel motor and the stator housing.
Further, the gap between the first rotor and the second rotor and the gap between the second rotor and the stator are both in the range of 0.3-1.5 mm.
Further, the magnetic speed reducer for the hub motor further comprises a sealing shell, wherein the sealing shell is arranged between the stator shell and the gear cover plate and used for further sealing a gap between the stator shell and the gear cover plate.
Further, bearings are arranged on the stator housing and the gear cover plate so that the gear cover plate can rotate independently relative to the stator housing or the sealing housing.
The application has the advantages that: the magnetic speed reducer for the hub motor is provided with the stator shell, the sealing shell and the gear cover plate to form a closed space, so that the first rotor, the second rotor and the stator are not in contact with the outside, gear oil does not need to be added, and daily maintenance is simple compared with the conventional gear speed reducer; through the effect that sets up first magnetism spare and second magnetism spare magnetic field for there is the clearance between first rotor and the second rotor and between second rotor and the stator, makes it frictionless contact, contactless noise, when appearing transshipping, can appear sliding between the three, the tooth phenomenon that collapses that appears when having avoided traditional gear reduction box to transship.
Drawings
FIG. 1 is a schematic structural view of an embodiment of a magnetic speed reducer for a hub motor according to the present application;
FIG. 2 is an exploded view of the magnetic retarder for the wheel hub motor of FIG. 1;
FIG. 3 is a schematic view of the first rotor of FIG. 2;
FIG. 4 is a schematic view of a second rotor of FIG. 2;
fig. 5 is a schematic view of the stator structure in fig. 2.
Labeled as: 10. the magnetic bearing comprises a first rotor, 101, a first magnetic part, 102, a mounting frame, 103, a first rotor core, 104, a first key, 11, a second rotor, 111, a first annular pressure plate, 112, a second rotor core, 113, a second annular pressure plate, 12, a stator, 121, a second magnetic part, 122, a stator core, 123, a second key, 13, a stator shell, 14, a gear cover plate, 15, an in-wheel motor, 16 and a sealed shell.
Detailed Description
The invention will be described in further detail below with reference to the figures and specific embodiments.
Referring to fig. 1 to 5, the present embodiment provides a magnetic speed reducer for a hub motor, including: the first rotor 10 is in transmission connection with the hub electric mechanism 15 through a transmission piece; the second rotor 11 is sleeved on the outer side of the first rotor 10 and is in transmission connection with the hub motor 15; the stator 12 is sleeved outside the second rotor 11; the stator shell 13 is sleeved on the outer side of the stator 12 and is connected with the stator through a fixing piece; the gear cover plate 14 is arranged on the other side of the stator shell 13 and fixedly connected with the second rotor through bolts; the first rotor 10 is provided with a first magnetic member 101, and the stator 12 is provided with a second magnetic member 121, so that gaps are formed between the first rotor and the second rotor and between the second rotor and the stator.
Specifically, the first rotor 10 further includes an annular mounting frame 102 and a first rotor core 103, the first magnetic member 101 includes a plurality of and is circumferentially disposed around the mounting frame 102, the first rotor core 103 is connected to the mounting frame 102, the transmission member is a first key 104 disposed on the mounting frame, the mounting frame 102 is provided with a central hole, and the first key 104 is mounted in the central hole.
Specifically, the second rotor 11 includes a first annular pressing plate 111, a second rotor core 112, and a second annular pressing plate 113, the second rotor core 112 includes a plurality of second annular pressing plates 111 and 113, and the hub motor 15 is provided with a bearing connected to the first annular pressing plate 111.
Specifically, the fixing piece is the second key 123 arranged on the second magnetic piece 121, the stator 12 further includes a stator core 122, the second magnetic piece 121 is arranged in an annular shape, the stator core 122 includes a plurality of key slots arranged along the inner circumference of the second magnetic piece, the stator housing is provided with key slots corresponding to the second key 123, and the stator housing 13 is further fixedly connected with the hub motor through bolts.
Preferably, the gap between the first rotor 10 and the second rotor 11 and the gap between the second rotor 11 and the stator 12 are both in the range of 0.3-1.5mm due to the acting force between different magnetic poles of the first magnetic member 101 and the second magnetic member 121.
Specifically, the magnetic speed reducer for the hub motor further comprises a sealing shell 16, wherein the sealing shell 16 is arranged between the stator shell 12 and the gear cover plate 14 and is fixedly connected with the stator shell and the gear cover plate through bolts respectively for further sealing a gap between the stator shell and the gear cover plate, bearings are arranged on the stator shell 13 and the gear cover plate 14, so that the gear cover plate can independently rotate relative to the stator shell or the sealing shell, and the gear cover plate 14 is finally connected with a vehicle hub to transmit final force.
In this embodiment, the first annular pressing plate 111 and the second annular pressing plate 113 are made of non-magnetic materials, such as aluminum alloy and engineering plastics, and the second rotor core 112 is made of magnetic materials, such as silicon steel and low-carbon steel.
Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that various changes in the embodiments and/or modifications of the invention can be made, and equivalents and modifications of some features of the invention can be made without departing from the spirit and scope of the invention.
Claims (10)
1. A magnetic speed reducer for a hub motor, comprising:
the first rotor is in transmission connection with the hub motor through a transmission piece;
the second rotor is sleeved on the outer side of the first rotor and is in transmission connection with the hub motor;
the stator is sleeved outside the second rotor;
the stator shell is sleeved on the outer side of the stator and is connected with the stator through a fixing piece;
the gear cover plate is arranged on the other side of the stator shell and is in assembly connection with the second rotor;
the first rotor is provided with a first magnetic part, and the stator is provided with a second magnetic part, so that gaps are formed between the first rotor and the second rotor and between the second rotor and the stator.
2. A magnetic speed reducer for a hub motor according to claim 1, wherein: first rotor still includes annular mounting bracket and first rotor core, first magnetism spare includes a plurality ofly and encircles the mounting bracket circumference sets up, first rotor core is connected to the mounting bracket.
3. A magnetic speed reducer for a hub motor according to claim 2, wherein: the transmission part is a first key arranged on the mounting rack.
4. A magnetic speed reducer for a hub motor according to claim 1, wherein: the second rotor comprises a first annular pressing plate, a second rotor core and a second annular pressing plate, the second rotor core comprises a plurality of annular pressing plates and is arranged between the first annular pressing plate and the second annular pressing plate, and a bearing is arranged on the hub motor and connected with the first annular pressing plate.
5. A magnetic speed reducer for a hub motor according to claim 1, wherein: the stator further comprises a stator core, the second magnetic piece is arranged in an annular mode, and the stator core comprises a plurality of second magnetic pieces which are arranged in the circumferential direction.
6. The magnetic speed reducer for hub motors of claim 5, wherein: the fixing piece is a second key arranged on the second magnetic piece.
7. A magnetic speed reducer for a hub motor according to claim 6, wherein: and the stator shell is provided with a key groove corresponding to the second key and is assembled and connected with the hub motor.
8. A magnetic speed reducer for a hub motor according to claim 1, wherein: the range of the clearance between the first rotor and the second rotor and the range of the clearance between the second rotor and the stator are both 0.3-1.5 mm.
9. A magnetic speed reducer for a hub motor according to claim 1, wherein: the magnetic speed reducer for the hub motor further comprises a sealing shell, and the sealing shell is arranged between the stator shell and the gear cover plate.
10. A magnetic speed reducer for a hub motor according to claim 9, wherein: bearings are arranged on the stator shell and the gear cover plate so that the gear cover plate can independently rotate relative to the stator shell or the sealing shell.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111286435.3A CN113904516B (en) | 2021-11-02 | 2021-11-02 | Magnetic speed reducer for hub motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111286435.3A CN113904516B (en) | 2021-11-02 | 2021-11-02 | Magnetic speed reducer for hub motor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113904516A true CN113904516A (en) | 2022-01-07 |
| CN113904516B CN113904516B (en) | 2024-08-27 |
Family
ID=79027888
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111286435.3A Active CN113904516B (en) | 2021-11-02 | 2021-11-02 | Magnetic speed reducer for hub motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113904516B (en) |
Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101295912A (en) * | 2007-04-25 | 2008-10-29 | 扬州市洪泉实业有限公司 | Pneumatic clutch control type permanent-magnet retarder |
| JP2009261214A (en) * | 2008-03-28 | 2009-11-05 | Aisin Seiki Co Ltd | Motor apparatus |
| CN202260661U (en) * | 2011-10-09 | 2012-05-30 | 西南石油大学 | Combined all-metal screw stator |
| US20120190491A1 (en) * | 2010-05-21 | 2012-07-26 | Nsk Ltd. | Wheel hub motor |
| US20130093274A1 (en) * | 2011-10-17 | 2013-04-18 | Telma | Interchangeable stator for electromagnetic retarder and electromagnetic retarder equipped with such a stator |
| CN104149607A (en) * | 2014-06-07 | 2014-11-19 | 张大华 | Hybrid electromagnetic/hydraulic speed reducer of lorry |
| CN106357071A (en) * | 2016-09-26 | 2017-01-25 | 威灵（芜湖）电机制造有限公司 | Rotor for self-starting permanent magnet synchronous motor and self-starting permanent magnet synchronous motor |
| CN108512318A (en) * | 2017-02-27 | 2018-09-07 | 通用汽车环球科技运作有限责任公司 | Stator module for motor |
| CN210927337U (en) * | 2019-12-12 | 2020-07-03 | 苏州盛亿电机有限公司 | Through-shaft inner rotor hub motor with two-stage speed reduction transmission |
| CN112510949A (en) * | 2020-10-31 | 2021-03-16 | 杭州乔纳森机电科技有限公司 | No yoke stator module and axial permanent magnetism wheel hub formula motor |
| CN213685135U (en) * | 2020-11-10 | 2021-07-13 | 浙江奥威特液压机械有限公司 | Hub reduction gear assembly |
| JP2021141708A (en) * | 2020-03-05 | 2021-09-16 | 三菱電機株式会社 | Magnetic speed reducer and electrical machinery device including magnetic speed reducer |
| CN113561762A (en) * | 2021-09-28 | 2021-10-29 | 南京慧成动力科技有限公司 | Integrated integrated hub motor driving device |
-
2021
- 2021-11-02 CN CN202111286435.3A patent/CN113904516B/en active Active
Patent Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101295912A (en) * | 2007-04-25 | 2008-10-29 | 扬州市洪泉实业有限公司 | Pneumatic clutch control type permanent-magnet retarder |
| JP2009261214A (en) * | 2008-03-28 | 2009-11-05 | Aisin Seiki Co Ltd | Motor apparatus |
| US20120190491A1 (en) * | 2010-05-21 | 2012-07-26 | Nsk Ltd. | Wheel hub motor |
| CN202260661U (en) * | 2011-10-09 | 2012-05-30 | 西南石油大学 | Combined all-metal screw stator |
| US20130093274A1 (en) * | 2011-10-17 | 2013-04-18 | Telma | Interchangeable stator for electromagnetic retarder and electromagnetic retarder equipped with such a stator |
| CN104149607A (en) * | 2014-06-07 | 2014-11-19 | 张大华 | Hybrid electromagnetic/hydraulic speed reducer of lorry |
| CN106357071A (en) * | 2016-09-26 | 2017-01-25 | 威灵（芜湖）电机制造有限公司 | Rotor for self-starting permanent magnet synchronous motor and self-starting permanent magnet synchronous motor |
| CN108512318A (en) * | 2017-02-27 | 2018-09-07 | 通用汽车环球科技运作有限责任公司 | Stator module for motor |
| CN210927337U (en) * | 2019-12-12 | 2020-07-03 | 苏州盛亿电机有限公司 | Through-shaft inner rotor hub motor with two-stage speed reduction transmission |
| JP2021141708A (en) * | 2020-03-05 | 2021-09-16 | 三菱電機株式会社 | Magnetic speed reducer and electrical machinery device including magnetic speed reducer |
| CN112510949A (en) * | 2020-10-31 | 2021-03-16 | 杭州乔纳森机电科技有限公司 | No yoke stator module and axial permanent magnetism wheel hub formula motor |
| CN213685135U (en) * | 2020-11-10 | 2021-07-13 | 浙江奥威特液压机械有限公司 | Hub reduction gear assembly |
| CN113561762A (en) * | 2021-09-28 | 2021-10-29 | 南京慧成动力科技有限公司 | Integrated integrated hub motor driving device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN113904516B (en) | 2024-08-27 |
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