CN219843484U - Hub motor with double sealing structures - Google Patents
Hub motor with double sealing structures Download PDFInfo
- Publication number
- CN219843484U CN219843484U CN202321220746.4U CN202321220746U CN219843484U CN 219843484 U CN219843484 U CN 219843484U CN 202321220746 U CN202321220746 U CN 202321220746U CN 219843484 U CN219843484 U CN 219843484U
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- Prior art keywords
- hub
- motor
- main body
- motor shaft
- stator
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- 238000007789 sealing Methods 0.000 title abstract description 10
- 239000002131 composite material Substances 0.000 claims description 14
- 229910000838 Al alloy Inorganic materials 0.000 claims description 3
- -1 aluminum iron boron Chemical compound 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 3
- 230000009977 dual effect Effects 0.000 claims 1
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 abstract description 7
- 230000002035 prolonged effect Effects 0.000 abstract description 2
- 230000000694 effects Effects 0.000 abstract 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/64—Electric machine technologies in electromobility
Landscapes
- Motor Or Generator Frames (AREA)
- Permanent Magnet Type Synchronous Machine (AREA)
Abstract
The utility model relates to the technical field of hub motors, in particular to a hub motor with a double-sealing structure, which comprises a motor shaft, wherein a stator assembly is fixedly sleeved on the surface of the motor shaft, the stator assembly comprises a stator framework, a stator iron core, a coil and an air gap, and the stator framework is fixedly connected to the surface of the motor shaft; the outer side of the stator assembly is provided with a rotor assembly, the rotor assembly comprises a hub main body and permanent magnets, the outer side of the stator assembly is provided with the hub main body, the inner wall of the hub main body is provided with a plurality of permanent magnets which are arranged along the circumferential direction, and the left side and the right side of the hub main body are respectively provided with a left hub cover and a right hub cover; a left oil seal is arranged between the left hub cover and the motor shaft, and a right oil seal and a secondary oil seal are respectively arranged between the right hub cover and the motor shaft from inside to outside. According to the utility model, the oil seal is added on the right side of the motor, so that double sealing effects are achieved, and the service life of the motor is prolonged.
Description
Technical Field
The utility model relates to the technical field of hub motors, in particular to a hub motor with a double-sealing structure.
Background
The hub motor is a motor arranged on a vehicle hub, the working principle of the hub motor is a permanent magnet synchronous motor, and the hub motor omits a large number of transmission parts, so that the vehicle is simpler in structure and can realize multiple complex driving modes.
The hub motors in the current market are various in types and can basically meet the use demands of people, but certain problems still exist, such as the fact that the traditional motor is provided with an oil seal on the left and right covers and runs for a certain time, the phenomenon of water leakage on the right side is caused, the motor is easy to burn out, and the service life of the motor is shortened.
Disclosure of Invention
The utility model aims to provide a hub motor with a double-sealing structure, which aims to solve the problems that in the background technology, the water leakage phenomenon is generated on the right side of a traditional motor, the motor is easy to burn out, and the service life of the motor is influenced.
In order to achieve the above purpose, the present utility model provides the following technical solutions: the hub motor with the double-sealing structure comprises a motor shaft, wherein a stator assembly is fixedly sleeved on the surface of the motor shaft and comprises a stator framework, a stator iron core, a coil and an air gap, and the stator framework is fixedly connected to the surface of the motor shaft; the outer side of the stator assembly is provided with a rotor assembly, the rotor assembly comprises a hub main body and permanent magnets, the outer side of the stator assembly is provided with the hub main body, the inner wall of the hub main body is provided with a plurality of permanent magnets which are arranged along the circumferential direction, and the left side and the right side of the hub main body are respectively provided with a left hub cover and a right hub cover; a left oil seal is arranged between the left hub cover and the motor shaft, and a right oil seal and a secondary oil seal are respectively arranged between the right hub cover and the motor shaft from inside to outside.
Preferably, the left hub cover is connected to the surface of the motor shaft through a ball bearing, the left hub cover is located on the left side of the hub main body, and the left hub cover is fixedly connected with the hub main body through bolts.
Preferably, the right hub cover is located on the right side of the hub main body, the right hub cover is connected to the surface of the motor shaft through a ball bearing in a sleeved mode, and the right hub cover is fixedly connected with the hub main body through bolts.
Preferably, the hub main body, the right hub cover and the right hub cover surround to form a hub shell, and the hub main body, the right hub cover and the right hub cover are all made of aluminum alloy.
Preferably, the outer surface of the stator framework is sleeved and fixed with a stator core, a plurality of pole teeth extend radially outwards from the surface of the stator core, coils are wound on the pole teeth of the stator core, and the pole teeth wound with the coils interact with the permanent magnets, so that the rotor assembly rotates relative to the stator assembly.
Preferably, an air gap is arranged between the outer circle of the stator core and the inner circle of the permanent magnet, and the distance of the air gap is 0.4-0.5 mm, and the air gap is used for optimizing the efficiency of the motor.
Preferably, the surface of the motor shaft is further provided with a wire through groove, a composite wire is arranged in the wire through groove, one end of the composite wire extends to the outside of the motor shaft, and the other end of the composite wire is electrically connected with the coil.
Preferably, the permanent magnets are made of sintered aluminum iron boron materials, the permanent magnets are in a sheet shape, a plurality of permanent magnets are arranged next to each other, and the south poles and the north poles of two adjacent permanent magnets are self-attracted to each other to form a self-loop.
Compared with the prior art, the utility model has the beneficial effects that: the hub motor with the double-sealing structure is electrified through the composite electric wire, and pole teeth wound with the coil on the surface of the stator core interact with the permanent magnet after the composite electric wire is electrified, so that the rotor assembly rotates relative to the stator assembly, and the hub main body is matched with the left hub cover and the right hub cover to rotate on the surface of the motor shaft under the action of the ball bearing; the left oil seal and the second oil seal are respectively arranged between the right hub cover and the motor shaft from inside to outside, and the double sealing function is achieved by adding one oil seal on the right side of the motor, so that the service life of the motor is prolonged.
Drawings
FIG. 1 is a schematic view of a front cross-sectional structure of the present utility model;
FIG. 2 is a schematic diagram of the front view of the present utility model;
fig. 3 is an enlarged schematic view of the structure of fig. 1 a according to the present utility model.
In the figure: 1. a motor shaft; 11. a ball bearing; 2. a rotor assembly; 21. a hub main body; 211. a left hub cap; 212. a right hub cap; 22. a permanent magnet; 3. a stator assembly; 31. a stator skeleton; 32. a stator core; 33. a coil; 34. an air gap; 4. a left oil seal; 5. a composite wire; 6. a right oil seal; 7. and a secondary oil seal.
Detailed Description
The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are only some embodiments of the present utility model, not all embodiments, and furthermore, the terms "first", "second", "third", "up, down, left, right", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. Meanwhile, in the description of the present utility model, unless explicitly stated and defined otherwise, the terms "connected", "connected" and "connected" should be interpreted broadly, and for example, may be fixedly connected, detachably connected, or integrally connected; the mechanical connection and the electrical connection can be adopted; all other embodiments, which may be directly or indirectly through intermediaries, which may be obtained by a person of ordinary skill in the art without inventive effort based on the embodiments of the present utility model are within the scope of the present utility model.
The utility model provides a structure of a hub motor with a double-sealing structure, as shown in fig. 1 and 2, comprising a motor shaft 1, wherein a stator assembly 3 is sleeved and fixed on the surface of the motor shaft 1, the stator assembly 3 comprises a stator framework 31, a stator iron core 32, a coil 33 and an air gap 34, the stator framework 31 is fixedly connected on the surface of the motor shaft 1, the stator iron core 32 is sleeved and fixed on the outer surface of the stator framework 31, a plurality of pole teeth are radially outwards extended on the surface of the stator iron core 32, the coil 33 is wound on the pole teeth of the stator iron core 32, the pole teeth wound with the coil 33 interact with a permanent magnet 22, so that the rotor assembly 2 rotates relative to the stator assembly 3, the air gap 34 is arranged between the outer circle of the stator iron core 32 and the inner circle of the permanent magnet 22, and the distance range of the air gap 34 is 0.4-0.5 mm, and the air gap 34 is used for optimizing the motor efficiency.
In practice, the coil 33 is energized by the composite electric wire 5, and after the energization, the pole teeth wound with the coil 33 on the surface of the stator core 32 interact with the permanent magnet 22, so that the rotor assembly 2 rotates relative to the stator assembly 3, and the hub main body 21 rotates on the surface of the motor shaft 1 under the action of the ball bearing 11 in cooperation with the left hub cover 211 and the right hub cover 212.
Further, as shown in fig. 1 and 3, the outer side of the stator assembly 3 is provided with a rotor assembly 2, and the rotor assembly 2 includes a hub main body 21 and permanent magnets 22, the outer side of the stator assembly 3 is provided with the hub main body 21, a left hub cover 211 is sleeved on the surface of the motor shaft 1 through a ball bearing 11, the left hub cover 211 is positioned at the left side of the hub main body 21, the left hub cover 211 is fixedly connected with the hub main body 21 through bolts, a plurality of permanent magnets 22 are arranged on the inner wall of the hub main body 21 along the circumferential direction, both sides of the left side of the hub main body 21 are provided with a left hub cover 211 and a right hub cover 212, the right hub cover 212 is positioned on the right side of the hub main body 21, the right hub cover 212 is sleeved and connected on the surface of the motor shaft 1 through the ball bearing 11, the right hub cover 212 is fixedly connected with the hub main body 21 through bolts, the hub main body 21, the right hub cover 212 and the right hub cover 212 are encircled to form a hub shell, the hub main body 21, the right hub cover 212 and the right hub cover 212 are all made of aluminum alloy, the permanent magnets 22 are made of sintered aluminum-iron-boron materials, the permanent magnets 22 are sheet-shaped, the permanent magnets 22 are arranged next to each other, and the south poles and the north poles of two adjacent permanent magnets 22 are mutually self-attracted to form a self-loop; a left oil seal 4 is arranged between the left hub cover 211 and the motor shaft 1, and a right oil seal 6 and a secondary oil seal 7 are respectively arranged between the right hub cover 212 and the motor shaft 1 from inside to outside.
Further, as shown in fig. 2, the surface of the motor shaft 1 is also provided with a wire through groove, the inside of the wire through groove is provided with a composite wire 5, and one end of the composite wire 5 extends to the outside of the motor shaft 1 while the other end of the composite wire 5 is electrically connected with the coil 33.
The left and right covers of the traditional motor in the prior art are respectively provided with an oil seal, the traditional motor runs for a certain time, and the right side is provided with a water leakage phenomenon, so that the motor burns out.
Working principle: when the motor is used, the coil 33 is electrified through the composite electric wire 5, and pole teeth wound with the coil 33 on the surface of the stator core 32 interact with the permanent magnet 22 after the electric wire is electrified, so that the rotor assembly 2 rotates relative to the stator assembly 3, and the hub main body 21 is matched with the left hub cover 211 and the right hub cover 212 to rotate on the surface of the motor shaft 1 under the action of the ball bearing 11.
The left and right covers of the traditional motor are respectively provided with an oil seal, the traditional motor runs for a certain time, and the right side is provided with a water leakage phenomenon, so that the motor burns out.
It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present utility model may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Claims (8)
1. The utility model provides a wheel hub motor of double containment structure, includes motor shaft (1), its characterized in that: the surface of the motor shaft (1) is fixedly sleeved with a stator assembly (3), the stator assembly (3) comprises a stator framework (31), a stator core (32), a coil (33) and an air gap (34), and the stator framework (31) is fixedly connected to the surface of the motor shaft (1); the outer side of the stator assembly (3) is provided with a rotor assembly (2), the rotor assembly (2) comprises a hub main body (21) and permanent magnets (22), the outer side of the stator assembly (3) is provided with the hub main body (21), the inner wall of the hub main body (21) is provided with a plurality of permanent magnets (22) which are arranged along the circumferential direction, and the left side and the right side of the hub main body (21) are provided with a left hub cover (211) and a right hub cover (212); a left oil seal (4) is arranged between the left hub cover (211) and the motor shaft (1), and a right oil seal (6) and a secondary oil seal (7) are respectively arranged between the right hub cover (212) and the motor shaft (1) from inside to outside.
2. The hub motor of claim 1, wherein: the left hub cover (211) is connected to the surface of the motor shaft (1) through a ball bearing (11) in a sleeved mode, the left hub cover (211) is located on the left side of the hub main body (21), and the left hub cover (211) is fixedly connected with the hub main body (21) through bolts.
3. The hub motor of claim 2, wherein: the right hub cover (212) is positioned on the right side of the hub main body (21), the right hub cover (212) is sleeved and connected on the surface of the motor shaft (1) through the ball bearing (11), and the right hub cover (212) is fixedly connected with the hub main body (21) through bolts.
4. A dual seal structure hub motor according to claim 3, wherein: the hub main body (21), the right hub cover (212) and the right hub cover (212) are surrounded to form a hub shell, and the hub main body (21), the right hub cover (212) and the right hub cover (212) are all made of aluminum alloy.
5. The hub motor of claim 1, wherein: the outer surface of the stator framework (31) is sleeved and fixed with a stator core (32), a plurality of pole teeth are radially outwards extended from the surface of the stator core (32), coils (33) are wound on the pole teeth of the stator core (32), and the pole teeth wound with the coils (33) interact with the permanent magnets (22) to enable the rotor assembly (2) to rotate relative to the stator assembly (3).
6. The hub motor of claim 5, wherein: an air gap (34) is arranged between the outer circle of the stator core (32) and the inner circle of the permanent magnet (22), the distance range of the air gap (34) is 0.4-0.5 mm, and the air gap (34) is used for optimizing the efficiency of the motor.
7. The hub motor of claim 6, wherein: the surface of the motor shaft (1) is also provided with a wire through groove, the inside of the wire through groove is provided with a composite wire (5), one end of the composite wire (5) extends to the outside of the motor shaft (1), and the other end of the composite wire (5) is electrically connected with the coil (33).
8. The hub motor of claim 1, wherein: the permanent magnets (22) are made of sintered aluminum iron boron materials, the permanent magnets (22) are in a sheet shape, the plurality of permanent magnets (22) are arranged next to each other, and the south poles and the north poles of two adjacent permanent magnets (22) are self-attracted to each other to form a self-loop.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321220746.4U CN219843484U (en) | 2023-05-19 | 2023-05-19 | Hub motor with double sealing structures |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321220746.4U CN219843484U (en) | 2023-05-19 | 2023-05-19 | Hub motor with double sealing structures |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219843484U true CN219843484U (en) | 2023-10-17 |
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ID=88300984
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321220746.4U Active CN219843484U (en) | 2023-05-19 | 2023-05-19 | Hub motor with double sealing structures |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219843484U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN119813619A (en) * | 2025-03-12 | 2025-04-11 | 温岭正峰数字机电科技有限公司 | A high-speed motor for a double-oil-bladder water pump |
-
2023
- 2023-05-19 CN CN202321220746.4U patent/CN219843484U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN119813619A (en) * | 2025-03-12 | 2025-04-11 | 温岭正峰数字机电科技有限公司 | A high-speed motor for a double-oil-bladder water pump |
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| GR01 | Patent grant |