CN202679081U - Magnet-ring structure and permanent magnetism direct current motor - Google Patents
Magnet-ring structure and permanent magnetism direct current motor Download PDFInfo
- Publication number
- CN202679081U CN202679081U CN 201220265505 CN201220265505U CN202679081U CN 202679081 U CN202679081 U CN 202679081U CN 201220265505 CN201220265505 CN 201220265505 CN 201220265505 U CN201220265505 U CN 201220265505U CN 202679081 U CN202679081 U CN 202679081U
- Authority
- CN
- China
- Prior art keywords
- ring structure
- magnet ring
- plastic frame
- magnetic bead
- groove
- 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.)
- Expired - Lifetime
Links
- 230000005389 magnetism Effects 0.000 title abstract 3
- 239000011324 bead Substances 0.000 claims abstract description 36
- 230000002787 reinforcement Effects 0.000 claims description 4
- 238000001514 detection method Methods 0.000 description 3
- ZZUFCTLCJUWOSV-UHFFFAOYSA-N furosemide Chemical compound C1=C(Cl)C(S(=O)(=O)N)=CC(C(O)=O)=C1NCC1=CC=CO1 ZZUFCTLCJUWOSV-UHFFFAOYSA-N 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 229910000859 α-Fe Inorganic materials 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000000696 magnetic material Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 210000003205 muscle Anatomy 0.000 description 1
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
- H02K1/2706—Inner rotors
-
- 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
- H02K1/2706—Inner rotors
- H02K1/272—Inner rotors the magnetisation axis of the magnets being perpendicular to the rotor axis
- H02K1/274—Inner rotors the magnetisation axis of the magnets being perpendicular to the rotor axis the rotor consisting of two or more circumferentially positioned magnets
- H02K1/2753—Inner rotors the magnetisation axis of the magnets being perpendicular to the rotor axis the rotor consisting of two or more circumferentially positioned magnets the rotor consisting of magnets or groups of magnets arranged with alternating polarity
-
- 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
- H02K1/30—Means for mounting or fastening rotating magnetic parts on to, or to, the rotor structures using intermediate parts, e.g. spiders
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Permanent Field Magnets Of Synchronous Machinery (AREA)
Abstract
Disclosed is a magnetic-ring structure, comprising a plastic frame (1), wherein the plastic frame (1) is provided with an inner hole (2) mutually cooperating with a rotating shaft; the plastic frame (1) is symmetrical in shape relative to the central axis of the inner hole (2); the end portions of the plastic frame (1) are provided with multiple grooves (3) having equal interval in circumference; and the grooves (3) are used for arranging magnetic beads (4). The magnetic-ring structure is characterized in that: the grooves (3) are provided with rectangular cross sections, with the width thereof being less than the diameter of the magnetic bead (4); the grooves (3) and the magnetic beads (4) adopt interference fit, with the length of the groove being greater than the diameter of the magnetic beads (4); and a buckle (5), arranged between the magnetic beads and the inner wall of the grooves (3) in the length direction, is used for axially fixing the magnetic beads (4) in the grooves. The utility model further discloses a permanent magnetism direct current motor. The permanent magnetism direct current motor, composed of a stator and a rotor, is characterized in that: the rotating shaft of the rotor is provided with a magnet-ring structure mentioned above.
Description
Technical field
The utility model relates to a kind of magnet ring structure, particularly a kind of magnet ring structure of the permanent magnet DC motor for automobile, and this magnet ring structure is used for by using magnetic bead triggering hall signal (Hall signal) to come the position of detection rotor.The utility model also relates to the permanent magnet DC motor that comprises this magnet ring structure.
Background technology
The ring-shaped magnetic body of existing magnet ring (magnet ring structure that for example uses in the permanent magnet DC motor) for adopting ferrite or other permanent magnetic materials to be processed into.Because the limitation of ring-shaped magnetic body processing, the phenomenon of skewness can appear at circumferencial direction in magnetic; The materials such as ferrite are difficult for processing; With magnet ring pack into rotating shaft comparatively the difficulty; After forming, magnetic pole can't change.
Granted publication number discloses a kind of DC magnetic signal for the utility model patent of CN200947370Y, it is characterized in that being provided with paired groove and aperture at a plastic frame, plastic frame is provided with the endoporus with the rotating shaft interworking, aperture is provided with the longitudinal rib of vertical plastic framework in the relevant position of inner hole wall, settle the magnetic post in the groove, the inwall of groove is provided with muscle.Magnetic post interference fit in groove, the magnetic post can not deviate from assembling or transportation.The slot opening end face of magnet ring of magnetic post packed into to the assembling of the positioning step of rotating shaft, made positioning step block installed magnetic post, the magnetic post can not deviate from when High Rotation Speed or high vibration.
But a shortcoming of this utility model patent is that therefore the magnetic bead in the groove still might axially be deviate from, particularly when not having positioning step on the rotating shaft axially fully unfixing.
The utility model content
For this reason, aspect one of the present utility model, a kind of magnet ring structure has been proposed, it comprises: plastic frame, be provided with the endoporus with the rotating shaft interworking, this plastic frame is the shape symmetry with respect to the central axis of endoporus, is provided with equally spaced a plurality of grooves on the circumference in the end of this plastic frame, and groove is used for settling magnetic bead, it is characterized in that: the groove cross section is rectangle, its width is less than the magnetic bead diameter, and with the magnetic bead interference fit, its length is greater than the magnetic bead diameter; And between the inwall of groove length direction and magnetic bead, be provided with buckle, be used for magnetic bead is axially fixed in groove.
Aspect another, also proposed a kind of permanent magnet DC motor of the present utility model, this permanent magnet DC motor comprises stator and rotor, it is characterized in that, at the rotating shaft of rotor magnet ring structure according to arbitrary embodiment of the present utility model is installed.
Advantage of the present utility model comprises:
Cheap with comprising, be easy to the magnetic bead processing and assemble and the magnet ring structure of plastic frame replaces magnet ring.
Rectangular slot is easy to mount and dismount magnetic bead, and realizes interference fit, and uses buckle to realize axial restraint.Like this, with the simple and low cost structure of the combination of rectangular slot and buckle realized simultaneously magnetic bead radially, circumferential and axial fix.
In an embodiment of the present utility model, plastic frame uses therefrom the arm of mind-set extension and the reinforcement between the arm, compares with the discoid plastic frame of integral body, and structure is more light and handy.
Description of drawings
Fig. 1 is the schematic diagram according to the magnet ring structure of embodiment of the present utility model.
Embodiment
Referring now to accompanying drawing 1, it shows the magnet ring structure according to embodiment of the present utility model.As shown in the figure, this magnet ring structure comprises: plastic frame 1, be provided with the endoporus 2 with the rotating shaft interworking, this plastic frame 1 is shape symmetries with respect to the central axis of endoporus 2, is provided with equally spaced a plurality of grooves 3 on the circumference in the end of this plastic frame 1, and groove 3 is used for settling magnetic bead 4, it is characterized in that: groove 3 cross sections are rectangle, its width is less than magnetic bead 4 diameters, and with magnetic bead 4 interference fit, its length is greater than magnetic bead 4 diameters; And between the inwall of groove 3 length directions and magnetic bead 4, be provided with buckle 5, be used for magnetic bead 4 is axially fixed in groove 3.
According to an embodiment of the present utility model, described rotating shaft is the rotating shaft of the rotor of permanent magnet DC motor, that is to say that this magnet ring structure will be installed on the rotating shaft of rotor of permanent magnet DC motor, and this magnet ring structure is used for triggering the position that hall signals come detection rotor by magnetic bead 4.
According to an embodiment of the present utility model, this magnet ring structure is characterised in that described buckle 5 is the symmetrical a pair of buckle 5 of installing.That is to say, as shown in the figure, in relative two inwalls of the length direction of each groove 3 and two slits between the magnetic bead 4, a buckle 5 is installed respectively.
According to an embodiment of the present utility model, this magnet ring structure is characterised in that described buckle 5 is the cuboid thin slice.The thickness of described cuboid thin slice should guarantee to make magnetic bead 4 to be axially fixed in the groove 3.
According to an embodiment of the present utility model, this magnet ring structure is characterised in that described buckle 5 is the wedge shape thin slice.The buckle 5 of wedge shape thin slice is easier to be installed in the groove 3.
According to an embodiment of the present utility model, this magnet ring structure is characterised in that, is provided with longitudinal rib at endoporus 2, is used for making described endoporus 2 and rotating shaft interference fit.According to another embodiment of the present utility model, not at endoporus 2 longitudinal rib to be set, but at rotating shaft longitudinal rib is set, like this, endoporus 2 and the longitudinal rib interference fit that arranges at rotating shaft.
According to an embodiment of the present utility model, this magnet ring structure is characterised in that, described groove 3 is arranged on the arm 6 of therefrom mind-set extension of plastic frame 1, and is provided with reinforcement 7 between the adjacent arm 6.Like this, so that magnet ring structure is more light and handy, and save material.
In the utility model, replace magnet ring with magnetic bead 4 and plastic frame 1 cheap, that be easy to process and assemble.
In addition, the more important thing is that rectangular slot 3 is easy to mount and dismount magnetic bead 4, and realize interference fit, use simultaneously buckle 5 to realize axial restraint.Because the installation of buckle 5 has utilized the rectangular slot 3 that is used for installing by interference fit magnetic bead 4, like this with rectangular slot 3 and the simple and low cost structure of the combination of buckle 5 realized simultaneously magnetic bead 5 radially, circumferential and axial fix.
In addition, in an embodiment of the new shape of this practicality, plastic frame 1 uses therefrom the arm 6 of mind-set extension and the reinforcement 7 between the arm 6, compares with the discoid plastic frame of integral body, and structure is more light and handy.
Aspect another, also proposed a kind of permanent magnet DC motor of the present utility model, this permanent magnet DC motor comprises stator and rotor, it is characterized in that, at the rotating shaft of rotor above-mentioned magnet ring structure according to arbitrary embodiment of the present utility model is installed.This magnet ring structure is used in triggering for generating hall signal in the rotor rotation process, with the position for detection of rotor.
More than describe with reference to the accompanying drawings according to the magnet ring structure of embodiment of the present utility model and comprise the permanent magnet DC motor of this magnet ring structure, be to be noted that above description only is example, rather than to restriction of the present utility model.It should be apparent to those skilled in the art that and to carry out various changes and modification to the utility model, and do not exceed the scope of the present utility model that is limited by claims.
Claims (8)
1. magnet ring structure, comprise: plastic frame (1), be provided with the endoporus (2) with the rotating shaft interworking, this plastic frame (1) is the shape symmetry with respect to the central axis of endoporus (2), be provided with equally spaced a plurality of grooves (3) on the circumference in the end of this plastic frame (1), groove (3) is used for settling magnetic bead (4), it is characterized in that:
Groove (3) cross section is rectangle, and its width is less than magnetic bead (4) diameter, and with magnetic bead (4) interference fit, its length is greater than magnetic bead (4) diameter; And
Between the inwall of groove (3) length direction and magnetic bead, be provided with buckle (5), be used for magnetic bead (4) is axially fixed in groove.
2. according to claim 1 magnet ring structure is characterized in that, described buckle (5) is the symmetrical a pair of buckle of installing.
3. according to claim 1 magnet ring structure is characterized in that described buckle (5) is the cuboid thin slice.
4. according to claim 1 magnet ring structure is characterized in that described buckle (5) is the wedge shape thin slice.
5. according to claim 1 magnet ring structure is characterized in that, is provided with longitudinal rib (8) at endoporus (2), is used for making described endoporus (2) and rotating shaft interference fit.
6. according to claim 1 magnet ring structure is characterized in that, endoporus (2) and the longitudinal rib interference fit that arranges at rotating shaft.
7. each magnet ring structure is characterized in that according to claim 1-5, and described groove (3) is arranged on the arm (6) of therefrom mind-set extension of plastic frame (1), and is provided with reinforcement (7) between the adjacent arm (6).
8. permanent magnet DC motor, this permanent magnet DC motor comprises stator and rotor, it is characterized in that:
At the rotating shaft of rotor any one magnet ring structure in-7 is installed according to claim 1.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220265505 CN202679081U (en) | 2012-06-07 | 2012-06-07 | Magnet-ring structure and permanent magnetism direct current motor |
| PCT/CN2013/076934 WO2013182076A1 (en) | 2012-06-07 | 2013-06-07 | A magnetic ring structure and a permanent magnet dc motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220265505 CN202679081U (en) | 2012-06-07 | 2012-06-07 | Magnet-ring structure and permanent magnetism direct current motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202679081U true CN202679081U (en) | 2013-01-16 |
Family
ID=47499956
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220265505 Expired - Lifetime CN202679081U (en) | 2012-06-07 | 2012-06-07 | Magnet-ring structure and permanent magnetism direct current motor |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN202679081U (en) |
| WO (1) | WO2013182076A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013182076A1 (en) * | 2012-06-07 | 2013-12-12 | 广东肇庆爱龙威机电有限公司 | A magnetic ring structure and a permanent magnet dc motor |
| WO2021258496A1 (en) * | 2020-06-22 | 2021-12-30 | 东莞市力辉马达有限公司 | Improved hall sensor mounting structure |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8013699B2 (en) * | 2002-04-01 | 2011-09-06 | Med-El Elektromedizinische Geraete Gmbh | MRI-safe electro-magnetic tranducer |
| CN101071974A (en) * | 2006-05-12 | 2007-11-14 | 杨光笋 | Direct current brushless motor Hall device sensor |
| JP5069077B2 (en) * | 2007-10-10 | 2012-11-07 | アスモ株式会社 | Wiper motor |
| CN202068309U (en) * | 2011-04-07 | 2011-12-07 | 宁波亿诺宝机电有限公司 | Servo motor with Hall velocity measuring element for industrial sewing machine |
| CN202679081U (en) * | 2012-06-07 | 2013-01-16 | 广东肇庆爱龙威机电有限公司 | Magnet-ring structure and permanent magnetism direct current motor |
-
2012
- 2012-06-07 CN CN 201220265505 patent/CN202679081U/en not_active Expired - Lifetime
-
2013
- 2013-06-07 WO PCT/CN2013/076934 patent/WO2013182076A1/en active Application Filing
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013182076A1 (en) * | 2012-06-07 | 2013-12-12 | 广东肇庆爱龙威机电有限公司 | A magnetic ring structure and a permanent magnet dc motor |
| WO2021258496A1 (en) * | 2020-06-22 | 2021-12-30 | 东莞市力辉马达有限公司 | Improved hall sensor mounting structure |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2013182076A1 (en) | 2013-12-12 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN204886473U (en) | Motor | |
| CN102244428B (en) | Rotor for electric rotating machine | |
| CN103580326B (en) | Rotor and motor | |
| US20130207507A1 (en) | Rotor assembly for motor and manufacturing method thereof | |
| US20140062242A1 (en) | Transverse flux permanent magnet rotatory device | |
| US20160254714A1 (en) | Motor | |
| US10186919B2 (en) | Magnet-bearing moving part for permanent magnet synchronous machine | |
| CN202889017U (en) | Motor | |
| CN103683598A (en) | Rotor for rotating electric machine | |
| CN208890502U (en) | A kind of embedded rotor component, hub motor and electric vehicle | |
| CN204044175U (en) | Magnetic encoder structure | |
| US11277057B2 (en) | Sensor magnet of motor having a fixing portion to press-fit to a shaft without a sensor magnet holder | |
| CN106208580B (en) | Magnetized radial built-in inline adjustable flux motor | |
| CN202679081U (en) | Magnet-ring structure and permanent magnetism direct current motor | |
| EP2709248A2 (en) | Axial gap type electric rotating machine, electric wheelchair and electric bicycle | |
| WO2015036779A3 (en) | Pole-piece bonding | |
| CN103803005A (en) | Torque sensor, driving unit and electric assisted bicycle | |
| CN103580335A (en) | Electric motor | |
| TW200746589A (en) | Gap winding type motor | |
| CN113646993B (en) | Motor | |
| CN206023539U (en) | Swing type vibrator | |
| KR20110101279A (en) | Non-contact Torque Sensor for Steering System | |
| KR20100092243A (en) | Torque sensor | |
| CN113632341A (en) | Motor | |
| CN203166727U (en) | Linear motor |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130116 |
|
| CX01 | Expiry of patent term |