CN104658748A - Self-exciting magnetic resistance type rotary transformer - Google Patents
Self-exciting magnetic resistance type rotary transformer Download PDFInfo
- Publication number
- CN104658748A CN104658748A CN201410699641.0A CN201410699641A CN104658748A CN 104658748 A CN104658748 A CN 104658748A CN 201410699641 A CN201410699641 A CN 201410699641A CN 104658748 A CN104658748 A CN 104658748A
- Authority
- CN
- China
- Prior art keywords
- rotor
- self
- magnetic resistance
- resistance type
- permanent magnet
- 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
Abstract
The invention discloses a self-exciting magnetic resistance type rotary transformer, consisting of two parts, namely, a rotor and a stator; a plurality of permanent magnets are distributed in the rotor, the permanent magnets are combined two by two, and are positioned around the center shaft of the rotor, according to the self-exciting magnetic resistance type rotary transformer, the permanent magnets are reasonably arranged on the rotor of the magnetic resistance type rotary transformer, a relevant signal is inducted on the sine and cosine windings of the rotor in the rotary process, sine and cosine signals are utilized to obtain the position of the rotor via decoding, so as to further simplify the structure of the magnetic resistance type rotary transformer, and enhance the signal quality and the reliability.
Description
Technical field
The present invention relates to a kind of resolver, especially relate to a kind of magnetoresistance transformer of self-excitation.
Background technology
Magnetoresistance transformer and operation principle thereof are magnetoresistance transformers is the signal element that a kind of output voltage changes with angle of rotor.Inherently see, resolver is a kind of transformer that can rotate continuously, and it is made up of stators and rotators two parts, and its excitation winding is distributed in stator teeth groove with output winding, and rotor is only one piece of iron core with given shape, without any winding.Wherein stator tooth slot structure is by a mutually elementary excitation winding and the secondary output winding of two-phase all around in teeth groove, and rotator type has the multilayer silicon steel sheet of special shape.The shape of rotor magnetic pole makes air-gap permeance only contain stationary component and fundametal compoment in the change of rotor-position, thus is exporting in winding the position signalling obtained by sine and cosine change.Its general principle is the saliency utilizing rotor magnetic pole, and when rotor-position changes, excitation winding and the mutual inductance exported between winding also change thereupon, thus induce the sine and cosine electromotive force with rotor position information in output winding.
Traditional magnetoresistance transformer is generally have set of excitation winding on stator, and by applying the sinusoidal signal of certain frequency and amplitude to excitation winding, such setting causes signal in transmitting procedure, and loss ratio is more.
Summary of the invention
The object of the invention is the problem solving above-mentioned proposition, the magnetoresistance transformer that a kind of structure is simple, improve a kind of self-excitation of signal quality is provided.
The object of the invention is to realize as follows: a kind of magnetoresistance transformer of self-excitation, is made up of rotor and stator two parts; Be distributed with some permanent magnets in described rotor, described permanent magnet combination of two, be centered around described rotor center axle surrounding.
Further prioritization scheme is, the magnetoresistance transformer of above-mentioned a kind of self-excitation, and described permanent magnet is made up of the silicon steel sheet taking rare earth as material, and described permanent magnet two ends have lug boss.
Further prioritization scheme is, the magnetoresistance transformer of above-mentioned a kind of self-excitation, the number of poles of described permanent magnet is more than or equal to 2.
Further prioritization scheme is, the magnetoresistance transformer of above-mentioned a kind of self-excitation, described permanent magnet has four groups.
Further prioritization scheme is, the magnetoresistance transformer of above-mentioned a kind of self-excitation, is positioned on described stator and is also distributed with excitation winding.
Advantage of the present invention: the present invention reasonably arranges permanent magnet on the rotor of magnetoresistance transformer, on stator sine and cosine winding, corresponding signal is induced in the process rotated, utilize the cosine and sine signal of induction to pass through acquisition rotor-position of decoding, thus simplify structure, raising signal quality, the raising reliability of magnetoresistance transformer further.
Accompanying drawing explanation
In order to make content of the present invention more easily be clearly understood, below according to specific embodiment also by reference to the accompanying drawings, the present invention is further detailed explanation, wherein
Fig. 1 is structural representation of the present invention.
Embodiment:
Embodiment 1
As shown in Figure 1, a kind of magnetoresistance transformer of self-excitation, is made up of rotor 1 and stator 2 two parts; Be distributed with some permanent magnets 3 in described rotor 1, described permanent magnet 3 combination of two, be centered around described rotor 1 central shaft surrounding.Described permanent magnet 3 is made up of the silicon steel sheet taking rare earth as material, and described permanent magnet 3 two ends have lug boss.The number of poles of described permanent magnet 3 is more than or equal to 2.Described permanent magnet 3 has four groups.Be positioned on described stator 2 and be also distributed with excitation winding 4.The present invention reasonably arranges permanent magnet on the rotor of magnetoresistance transformer, on stator sine and cosine winding, corresponding signal is induced in the process rotated, utilize the cosine and sine signal of induction to pass through acquisition rotor-position of decoding, thus simplify structure, raising signal quality, the raising reliability of magnetoresistance transformer further.
Above-described specific embodiment; object of the present invention, technical scheme and beneficial effect are further described; be understood that; the foregoing is only specific embodiments of the invention; be not limited to the present invention; within the spirit and principles in the present invention all, any amendment made, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (5)
1. a magnetoresistance transformer for self-excitation, is made up of rotor (1) and stator (2) two parts; It is characterized in that: in described rotor (1), be distributed with some permanent magnets (3), described permanent magnet (3) combination of two, be centered around described rotor (1) central shaft surrounding.
2. the magnetoresistance transformer of a kind of self-excitation according to claim 1, is characterized in that: described permanent magnet (3) is made up of the silicon steel sheet taking rare earth as material, and described permanent magnet (3) two ends have lug boss.
3. the magnetoresistance transformer of a kind of self-excitation according to claim 2, is characterized in that: the number of poles of described permanent magnet (3) is more than or equal to 2.
4. the magnetoresistance transformer of a kind of self-excitation according to claim 3, is characterized in that: described permanent magnet (3) has four groups.
5. the magnetoresistance transformer of a kind of self-excitation according to claim 4, is characterized in that: be positioned on described stator (2) and be also distributed with excitation winding (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410699641.0A CN104658748A (en) | 2014-11-26 | 2014-11-26 | Self-exciting magnetic resistance type rotary transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410699641.0A CN104658748A (en) | 2014-11-26 | 2014-11-26 | Self-exciting magnetic resistance type rotary transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104658748A true CN104658748A (en) | 2015-05-27 |
Family
ID=53249757
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410699641.0A Pending CN104658748A (en) | 2014-11-26 | 2014-11-26 | Self-exciting magnetic resistance type rotary transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104658748A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110277889A (en) * | 2019-05-28 | 2019-09-24 | 安徽大学 | A kind of stator permanent-magnet rotary transformer |
| CN110350750A (en) * | 2019-05-28 | 2019-10-18 | 安徽大学 | A kind of stator permanent-magnet rotary transformer of even number pole |
| USD960086S1 (en) | 2017-07-25 | 2022-08-09 | Milwaukee Electric Tool Corporation | Battery pack |
| US11780061B2 (en) | 2019-02-18 | 2023-10-10 | Milwaukee Electric Tool Corporation | Impact tool |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1204883A (en) * | 1997-07-01 | 1999-01-13 | 株式会社东芝 | Reluctance type rotating machine with permanent magnets |
| GB2428138A (en) * | 2005-07-06 | 2007-01-17 | Rolls Royce Plc | Controllable shaft coupling including a rotary transformer |
| CN101051784A (en) * | 2007-05-11 | 2007-10-10 | 哈尔滨工业大学 | Wide speed regulating range permanent magnetic resistance synchronous motor and its speed regulating method |
| CN101322014A (en) * | 2006-07-19 | 2008-12-10 | 多摩川精机株式会社 | Angle detector |
| CN202260942U (en) * | 2011-10-31 | 2012-05-30 | 郑州新大方电力能源有限公司 | Alternating current permanent magnet synchronous hub motor for electric automobile |
| CN202374156U (en) * | 2011-12-28 | 2012-08-08 | 西安微电机研究所 | Low-voltage large-current permanent-magnetic alternative-current servo motor |
| CN202905443U (en) * | 2012-09-25 | 2013-04-24 | 苏州和鑫电气股份有限公司 | Magnetic resistance type multi-polar rotary transformer |
-
2014
- 2014-11-26 CN CN201410699641.0A patent/CN104658748A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1204883A (en) * | 1997-07-01 | 1999-01-13 | 株式会社东芝 | Reluctance type rotating machine with permanent magnets |
| GB2428138A (en) * | 2005-07-06 | 2007-01-17 | Rolls Royce Plc | Controllable shaft coupling including a rotary transformer |
| CN101322014A (en) * | 2006-07-19 | 2008-12-10 | 多摩川精机株式会社 | Angle detector |
| CN101051784A (en) * | 2007-05-11 | 2007-10-10 | 哈尔滨工业大学 | Wide speed regulating range permanent magnetic resistance synchronous motor and its speed regulating method |
| CN202260942U (en) * | 2011-10-31 | 2012-05-30 | 郑州新大方电力能源有限公司 | Alternating current permanent magnet synchronous hub motor for electric automobile |
| CN202374156U (en) * | 2011-12-28 | 2012-08-08 | 西安微电机研究所 | Low-voltage large-current permanent-magnetic alternative-current servo motor |
| CN202905443U (en) * | 2012-09-25 | 2013-04-24 | 苏州和鑫电气股份有限公司 | Magnetic resistance type multi-polar rotary transformer |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| USD960086S1 (en) | 2017-07-25 | 2022-08-09 | Milwaukee Electric Tool Corporation | Battery pack |
| US11462794B2 (en) | 2017-07-25 | 2022-10-04 | Milwaukee Electric Tool Corporation | High power battery-powered system |
| US11476527B2 (en) | 2017-07-25 | 2022-10-18 | Milwaukee Electric Tool Corporation | High power battery-powered system |
| US11780061B2 (en) | 2019-02-18 | 2023-10-10 | Milwaukee Electric Tool Corporation | Impact tool |
| CN110277889A (en) * | 2019-05-28 | 2019-09-24 | 安徽大学 | A kind of stator permanent-magnet rotary transformer |
| CN110350750A (en) * | 2019-05-28 | 2019-10-18 | 安徽大学 | A kind of stator permanent-magnet rotary transformer of even number pole |
| CN110350750B (en) * | 2019-05-28 | 2021-09-21 | 安徽大学 | Stator permanent magnet type rotary transformer with even poles |
| CN110277889B (en) * | 2019-05-28 | 2021-11-02 | 安徽大学 | Stator permanent magnet type rotary transformer |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102545429B (en) | Motor system | |
| CN102420515B (en) | Magnetic field-modulated transverse flux multi-phase permanent magnet motor | |
| KR101751356B1 (en) | Motor having stator with coupled teeth | |
| CN104658748A (en) | Self-exciting magnetic resistance type rotary transformer | |
| CA2990336C (en) | Electric motor | |
| JP2016538817A (en) | Transverse flux type electric machine | |
| CN102355108B (en) | High-quality three-phase alternating current permanent magnet servo synchronous motor | |
| CN105634234B (en) | A kind of brushless DC tachometer generator | |
| WO2018162073A1 (en) | Permanent magnet axial-flux electric machine stator and rotor assemblies | |
| CN106451855A (en) | Consequent-pole permanent magnet motor | |
| US10199888B2 (en) | Rotor of a dynamoelectric rotary machine | |
| CN103178672B (en) | Stator-surface-mounted type doubly salient permanent magnet motor adopting modularized rotor | |
| CN203313031U (en) | Super-strong new structure hybrid stepping motor | |
| CN202931164U (en) | Complementary fault-tolerant linear motor | |
| CN102403857A (en) | Stator surface-mounted doubly salient permanent-magnet motor with complementary winding magnetic paths | |
| CN104767336A (en) | Single-phase separately-excited magneto-resistive power generator | |
| MX2011002583A (en) | Permanent magnet rotor and motor using the same. | |
| JP6950361B2 (en) | motor | |
| CN204270853U (en) | A kind of winding arrangement of magnetoresistance transformer | |
| CN106981937B (en) | A kind of rotor misconstruction motor | |
| CN103501067B (en) | The rotor of motor | |
| CN206759181U (en) | A kind of stator permanent-magnet motor | |
| CN106655553A (en) | Motor with composite structure | |
| CN107579638A (en) | A kind of poly- magnetic magnetic resistance mixed rotor motor of bimorph transducer | |
| CN203722456U (en) | Low-thrust-fluctuation-flat-type permanent-magnet synchronous linear motor |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150527 |