CN111585367A - Rotor assembly, production method thereof and hub motor - Google Patents
Rotor assembly, production method thereof and hub motor Download PDFInfo
- Publication number
- CN111585367A CN111585367A CN202010432547.4A CN202010432547A CN111585367A CN 111585367 A CN111585367 A CN 111585367A CN 202010432547 A CN202010432547 A CN 202010432547A CN 111585367 A CN111585367 A CN 111585367A
- Authority
- CN
- China
- Prior art keywords
- hub
- magnetic conductive
- magnetic
- conductive iron
- rotor assembly
- 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.)
- Pending
Links
Images
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K1/00—Details of the magnetic circuit
- H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
- H02K1/22—Rotating parts of the magnetic circuit
- H02K1/27—Rotor cores with permanent magnets
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K1/00—Details of the magnetic circuit
- H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
- H02K1/22—Rotating parts of the magnetic circuit
- H02K1/28—Means for mounting or fastening rotating magnetic parts on to, or to, the rotor structures
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K15/00—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines
- H02K15/02—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines of stator or rotor bodies
- H02K15/03—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines of stator or rotor bodies having permanent magnets
-
- 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
- H02K5/18—Casings or enclosures characterised by the shape, form or construction thereof with ribs or fins for improving heat transfer
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/24—Casings; Enclosures; Supports specially adapted for suppression or reduction of noise or vibrations
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
- H02K7/006—Structural association of a motor or generator with the drive train of a motor vehicle
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Manufacture Of Motors, Generators (AREA)
- Permanent Field Magnets Of Synchronous Machinery (AREA)
Abstract
The invention discloses a rotor assembly, a production method thereof and a hub motor, wherein the rotor assembly comprises a rotor body, the rotor body comprises a hub, a plurality of magnetic conductive iron cores and a plurality of magnetic steels, a glue injection groove is formed in each magnetic conductive iron core, a glue storage groove is formed in the inner wall of the hub and is communicated with the glue injection groove, potting materials or injection molding materials are filled in the glue injection grooves and the glue storage grooves to realize the connection between the magnetic conductive iron cores and the hub, the plurality of magnetic conductive iron cores are uniformly distributed at intervals along the circumferential direction of the hub, magnetic steel mounting notches are formed between adjacent magnetic conductive iron cores, and the magnetic steels are mounted in the magnetic steel mounting notches. According to the invention, the magnetic conductive iron core is provided with the glue injection groove, the inner wall of the hub is provided with the glue storage groove, and the glue injection groove and the glue storage groove are filled with the potting material or the injection molding material, so that the magnetic conductive iron core is reliably connected with the hub, the resistance to external impact and vibration is improved, and the waterproof performance, the moisture-proof performance and the heat dissipation performance can be improved to a certain extent.
Description
Technical Field
The invention relates to the technical field of electric vehicles, in particular to a rotor assembly, a production method thereof and a hub motor.
Background
The electric vehicle is deeply loved by people due to the characteristics of environmental protection, low riding cost, quick hand-up and the like. The in-wheel motor is one of the important components of the electric vehicle. The rotor assembly on the present electric vehicle wheel hub motor, its magnetic conduction iron core bond on wheel hub through glue, and magnetic conduction iron core easily drops from wheel hub, and the rotor assembly is relatively poor to the resistance ability of external impact, vibrations, and in addition, the rotor assembly of present electric vehicle wheel hub motor still has waterproof, humidity resistance is poor, heat dispersion subalternation problem, from this, the urgent need be solved.
Disclosure of Invention
The invention aims to solve the problems that the rotor assembly of the existing hub motor of the electric vehicle has poor resistance to external impact and vibration, poor waterproof and moisture-proof performance and poor heat dissipation performance.
The purpose of the invention is realized by the following technical scheme:
the utility model provides a rotor assembly, includes rotor body, rotor body includes wheel hub, a plurality of magnetic conductive iron core and a plurality of magnet steel, the glue injection groove has been seted up on the magnetic conductive iron core, the glue storage groove has been seted up on wheel hub's the inner wall, glue storage groove with the glue injection groove communicates mutually, glue injection groove glue storage inslot all fills there is potting compound or injection molding material in order to realize magnetic conductive iron core with wheel hub's connection, a plurality of magnetic conductive iron core follow wheel hub's circumferencial direction interval equipartition is formed with magnet steel installation notch between the adjacent magnetic conductive iron core, the magnet steel install in the magnet steel installation notch.
As a preferable scheme of the invention, the glue storage groove is an annular groove.
As a preferable scheme of the invention, the depth of the glue storage tank is 1 mm.
As a preferable aspect of the present invention, a length of the glue storage groove in the axial direction of the hub is not less than 1/2 of a length of the magnetically permeable iron core in the axial direction of the hub.
As a preferable scheme of the invention, the number of the glue storage grooves is 2, and the 2 glue storage grooves are arranged at intervals along the axial direction of the hub.
As a preferred scheme of the invention, the potting material is epoxy resin potting adhesive.
A method of producing a rotor assembly as described above, comprising the steps of:
a. placing a positioning tool into the hub, and positioning and installing a plurality of magnetic conductive iron cores on the inner wall of the hub through the positioning tool;
b. inserting magnetic steel between adjacent magnetic conductive iron cores;
c. slowly taking out the positioning tool and putting the positioning tool into the fixing tool to fix the magnetic conductive iron core and the magnetic steel, so that the magnetic conductive iron core and the magnetic steel are prevented from displacing;
d. and pouring the potting material into the glue injection groove so that the potting material fills the glue injection groove and the glue storage groove, and taking down the fixing tool after the potting material is fully solidified.
A further method of producing a rotor assembly as described above, comprising the steps of:
a. installing the magnetic conductive iron core on a positioning tool;
b. inserting magnetic steel between adjacent magnetic conductive iron cores;
c. placing the positioning tool provided with the magnetic conductive iron core and the magnetic steel into a hub injection mold, completing injection molding together with the hub, demolding after injection molding, and taking down the positioning tool;
d. and magnetizing the magnetic steel.
There is also a method of producing a rotor assembly as described above, comprising the steps of:
a. installing the magnetic conductive iron core on a positioning tool;
b. placing the positioning tool provided with the magnetic conductive iron core into a hub injection mold, completing injection molding together with the hub, demolding after injection molding, and taking down the positioning tool;
c. and magnetic steel is inserted between the adjacent magnetic conductive iron cores.
An in-wheel motor comprising a rotor assembly as described above.
The magnetic core and the hub are reliably connected by arranging the glue injection groove on the magnetic core, arranging the glue storage groove on the inner wall of the hub and filling the glue injection groove and the glue storage groove with potting materials or injection molding materials, so that the resistance to external impact and vibration is improved, and the waterproof performance, the moisture-proof performance and the heat dissipation performance can be improved to a certain extent.
Drawings
FIG. 1 is a schematic view of a rotor assembly;
FIG. 2 is an exploded view of a rotor assembly;
FIG. 3 is a schematic view of a fitting structure of the positioning tool and the hub;
fig. 4 is a schematic view of a fitting structure of the fixing tool and the rotor assembly.
In the figure:
1. a hub; 2. a magnetically permeable iron core; 3. magnetic steel; 4. injecting glue groove; 5. a glue storage tank; 6. positioning holes; 7. and (5) fixing the tool.
Detailed Description
The technical scheme of the invention is further explained by the specific implementation mode in combination with the attached drawings. It is to be understood that the embodiments described herein are illustrative only and are not limiting upon the present invention.
Referring to fig. 1 to 4, fig. 1 is a schematic structural diagram of a rotor assembly; FIG. 2 is an exploded view of a rotor assembly; FIG. 3 is a schematic view of a fitting structure of the positioning tool and the hub; fig. 4 is a schematic view of a fitting structure of the fixing tool and the rotor assembly.
Example one
In this embodiment, a rotor assembly, including rotor body, rotor body includes wheel hub 1, a plurality of magnetic conduction iron core 2 and a plurality of magnet steel 3, glue injection groove 4 has been seted up on magnetic conduction iron core 2, glue storage groove 5 has been seted up on wheel hub 1's the inner wall, glue storage groove 5 with glue injection groove 4 is linked together, glue injection groove 4 glue storage groove 5 intussuseption is all filled with potting compound or injection molding compound in order to realize magnetic conduction iron core 2 with wheel hub 1's connection, a plurality of magnetic conduction iron core 2 follow wheel hub 1's circumferencial direction interval equipartition, be formed with magnet steel installation notch between the adjacent magnetic conduction iron core 2, magnet steel 3 install in the magnet steel installation notch.
Specifically, in this embodiment, the glue storage tank 5 is an annular groove, and the depth of the glue storage tank 5 is 1 mm.
In order to ensure the connection strength between the hub 1 and the magnetically permeable core 2, in this embodiment, the length of the glue storage groove 5 in the axial direction of the hub 1 is not less than 1/2 of the length of the magnetically permeable core 2 in the axial direction of the hub 1.
Specifically, in this embodiment, the number of the glue storage grooves 5 is 2, and the 2 glue storage grooves 5 are arranged at intervals along the axial direction of the hub 1.
Specifically, in this embodiment, the potting material is an epoxy resin potting adhesive; and further, the waterproof and moisture-proof performance can be effectively improved, and the heat dissipation performance of the rotor assembly can be improved.
The rotor assembly is characterized in that the magnetic conductive iron core 2 is provided with the glue injection groove 4, the inner wall of the hub 1 is provided with the glue storage groove 5, and the glue injection groove 4 and the glue storage groove 5 are filled with the potting material, so that the magnetic conductive iron core 2 is reliably connected with the hub 1, the resistance to external impact and vibration is improved, and the waterproof performance, the moisture-proof performance and the heat dissipation performance can be improved to a certain extent.
The embodiment also discloses a method for producing the rotor assembly, which comprises the following steps:
a. placing a positioning tool into the wheel hub 1, wherein a plurality of positioning holes 6 are formed in the positioning tool, the number of the positioning holes 6 is the same as that of the magnetic conductive iron cores 2, inserting a positioning pin into each positioning hole 6, then installing the magnetic conductive iron cores 2, and inserting the positioning pin into the glue injection groove 4 of the magnetic conductive iron cores 2, thereby completing positioning and installation of the magnetic conductive iron cores 2;
b. inserting magnetic steel 3 between the adjacent magnetic conductive iron cores 2;
c. slowly taking out the positioning tool and putting the positioning tool into the fixing tool 7 to fix the magnetic conductive iron core 2 and the magnetic steel 3, so as to prevent the magnetic conductive iron core 2 and the magnetic steel 3 from displacing, smearing grease before putting the fixing tool 7 in, and preventing the fixing tool 7 from being bonded with the magnetic conductive iron core 2 in the filling and sealing process;
d. and pouring the potting material into the glue injection groove 4 so that the potting material fills the glue injection groove 4 and the glue storage groove 5, and taking down the fixing tool 7 after the potting material is fully solidified.
The embodiment also discloses an in-wheel motor which comprises the rotor assembly.
Example two
The rotor assembly of this embodiment is substantially the same in construction as the rotor assembly of the first embodiment, except that the rotor assembly is filled with an injection molded plastic.
Accordingly, in this embodiment, a method of producing a rotor assembly as described above includes the steps of:
a. installing the magnetic conductive iron core on a positioning tool, wherein the positioning tool is provided with a plurality of positioning holes 6, the number of the positioning holes 6 is the same as that of the magnetic conductive iron cores 2, a positioning pin is inserted into each positioning hole 6, then the magnetic conductive iron cores 2 are installed, and the positioning pins are inserted into glue injection grooves 4 of the magnetic conductive iron cores 2, so that the positioning installation of the magnetic conductive iron cores 2 is completed;
b. inserting non-magnetic steel 3 between the adjacent magnetic conductive iron cores 2;
c. placing the positioning tool provided with the magnetic conductive iron core and the magnetic steel into a hub injection mold, completing injection molding together with the hub, demolding after injection molding, and taking down the positioning tool; before the positioning tool is put in, grease is required to be coated, so that the positioning tool can be conveniently taken out in the later period;
d. magnetizing the magnetic steel 3.
EXAMPLE III
The present embodiment is substantially the same as the second embodiment, except that a method for producing a rotor assembly, specifically, in the present embodiment, a method for producing a rotor assembly as described above, includes the following steps:
a. installing the magnetic conductive iron core on a positioning tool, wherein the positioning tool is provided with a plurality of positioning holes 6, the number of the positioning holes 6 is the same as that of the magnetic conductive iron cores 2, a positioning pin is inserted into each positioning hole 6, then the magnetic conductive iron cores 2 are installed, and the positioning pins are inserted into glue injection grooves 4 of the magnetic conductive iron cores 2, so that the positioning installation of the magnetic conductive iron cores 2 is completed;
b. placing the positioning tool provided with the magnetic conductive iron core into a hub injection mold, completing injection molding together with the hub, demolding after injection molding, and taking down the positioning tool;
c. and magnetic steel 3 is inserted between the adjacent magnetic conductive iron cores 2.
The foregoing embodiments are merely illustrative of the principles and features of this invention, which is not limited to the above-described embodiments, but rather is susceptible to various changes and modifications without departing from the spirit and scope of the invention, which changes and modifications are within the scope of the invention as claimed. The scope of the invention is defined by the appended claims.
Claims (10)
1. A rotor assembly comprising a rotor body, characterized in that: rotor body includes wheel hub, a plurality of magnetic conduction iron cores and a plurality of magnet steel, the glue injection groove has been seted up on the magnetic conduction iron core, seted up on wheel hub's the inner wall and stored up the gluey groove, store up gluey groove with the glue injection groove communicates mutually, the glue injection groove store up gluey inslot and all fill potting compound or injection molding material in order to realize the magnetic conduction iron core with wheel hub's connection, a plurality of magnetic conduction iron cores follow wheel hub's circumferencial direction interval equipartition is formed with magnet steel installation notch between the adjacent magnetic conduction iron core, the magnet steel install in the magnet steel installation notch.
2. A rotor assembly according to claim 1, wherein: the glue storage groove is an annular groove.
3. A rotor assembly according to claim 2, wherein: the depth of the glue storage groove is 1 mm.
4. A rotor assembly according to claim 3, wherein: the length of the glue storage groove in the axial direction of the hub is not less than 1/2 of the length of the magnetic conductive iron core in the axial direction of the hub.
5. A rotor assembly according to claim 4, wherein: the glue storage grooves are 2, and the 2 glue storage grooves are arranged at intervals along the axial direction of the hub.
6. A rotor assembly according to any one of claims 1 to 5, wherein: the potting material is epoxy resin potting adhesive.
7. A method of producing a rotor assembly according to any one of claims 1 to 6, wherein: the method comprises the following steps:
a. placing a positioning tool into the hub, and positioning and installing a plurality of magnetic conductive iron cores on the inner wall of the hub through the positioning tool;
b. inserting magnetic steel between adjacent magnetic conductive iron cores;
c. slowly taking out the positioning tool and putting the positioning tool into the fixing tool to fix the magnetic conductive iron core and the magnetic steel, so that the magnetic conductive iron core and the magnetic steel are prevented from displacing;
d. and pouring the potting material into the glue injection groove so that the potting material fills the glue injection groove and the glue storage groove, and taking down the fixing tool after the potting material is fully solidified.
8. A method of producing a rotor assembly according to any one of claims 1 to 6, wherein: the method comprises the following steps:
a. installing the magnetic conductive iron core on a positioning tool;
b. inserting magnetic steel between adjacent magnetic conductive iron cores;
c. placing the positioning tool provided with the magnetic conductive iron core and the magnetic steel into a hub injection mold, completing injection molding together with the hub, demolding after injection molding, and taking down the positioning tool;
d. and magnetizing the magnetic steel.
9. A method of producing a rotor assembly according to any one of claims 1 to 6, wherein: the method comprises the following steps:
a. installing the magnetic conductive iron core on a positioning tool;
b. placing the positioning tool provided with the magnetic conductive iron core into a hub injection mold, completing injection molding together with the hub, demolding after injection molding, and taking down the positioning tool;
c. and magnetic steel is inserted between the adjacent magnetic conductive iron cores.
10. An in-wheel motor characterized by: comprising a rotor assembly according to any of claims 1 to 6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010432547.4A CN111585367A (en) | 2020-05-20 | 2020-05-20 | Rotor assembly, production method thereof and hub motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010432547.4A CN111585367A (en) | 2020-05-20 | 2020-05-20 | Rotor assembly, production method thereof and hub motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111585367A true CN111585367A (en) | 2020-08-25 |
Family
ID=72126865
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010432547.4A Pending CN111585367A (en) | 2020-05-20 | 2020-05-20 | Rotor assembly, production method thereof and hub motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111585367A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114243977A (en) * | 2021-12-24 | 2022-03-25 | 五羊—本田摩托（广州）有限公司 | Tangential magnetic field integrated outer rotor hub motor and connection method |
-
2020
- 2020-05-20 CN CN202010432547.4A patent/CN111585367A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114243977A (en) * | 2021-12-24 | 2022-03-25 | 五羊—本田摩托（广州）有限公司 | Tangential magnetic field integrated outer rotor hub motor and connection method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| TWI423562B (en) | Motor stator and the manufacturing method thereof | |
| CN101490928B (en) | IPM rotor, IPM rotor manufacturing method and IPM rotor manufacturing apparatus | |
| EP0819332B1 (en) | Injection moulded motor assembly and method of fabrication | |
| US8957669B2 (en) | Magnet and holder assembly having improved rotational and axial stability | |
| CN201623555U (en) | Fixing structure for steel magnet | |
| CN103427512B (en) | Magnet type generator and manufacture method thereof | |
| CN109155556B (en) | Rotor and method for producing a rotor | |
| CN104471835A (en) | Molded part for pre-fastening a permanent magnet in a rotor or stator, fastening of the permanent magnet by means of a curable medium, and thermal protection of the permanent magnet during the fastening | |
| CN201388093Y (en) | Permanent magnet rotor for motor | |
| WO2012026003A1 (en) | Rotor | |
| CN111585367A (en) | Rotor assembly, production method thereof and hub motor | |
| CN202309274U (en) | Motor with permanent magnetic rotor | |
| CN112737170A (en) | Rotor structure and motor | |
| CN107689704B (en) | Motor and motor assembling method | |
| CN212183212U (en) | Rotor assembly and in-wheel motor | |
| CN104514911B (en) | Electronic expansion valve and coil device thereof | |
| CN110873062A (en) | Electronic water pump and casing assembly thereof | |
| CN102013772A (en) | Assembly method of permanent magnet motor rotor | |
| CN208797697U (en) | Motor rotor, motor and electric power steering system | |
| CN220822730U (en) | Rotor assembly | |
| CN218387006U (en) | Rotor subassembly, wheel hub subassembly and vehicle | |
| US20070046123A1 (en) | Permanent-magnet rotor for an external-rotor electric motor particularly for washing machines and similar household appliances and relevant manufacturing method | |
| JPS6142249A (en) | Manufacture of rotor with permanent magnet | |
| CN215646412U (en) | Novel permanent magnet motor rotor and permanent magnet motor | |
| CN219760822U (en) | Rotor assembly device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |