CN103021645A - Method and structure for improving electrical precision of non-contact rotating transformer - Google Patents
Method and structure for improving electrical precision of non-contact rotating transformer Download PDFInfo
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- CN103021645A CN103021645A CN2012104796209A CN201210479620A CN103021645A CN 103021645 A CN103021645 A CN 103021645A CN 2012104796209 A CN2012104796209 A CN 2012104796209A CN 201210479620 A CN201210479620 A CN 201210479620A CN 103021645 A CN103021645 A CN 103021645A
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Abstract
The invention discloses a method and structure for improving the electrical precision of a non-contact rotating transformer. According to the method and the structure, a non-magnetic conducting material and a magnetic conducting are arranged between a ring change part and a rotation change part of the non-contact rotating transformer and are superposed together to form a magnetic isolating magnetic conducting part; the intersected magnetic paths of the ring change part and the rotation change part are separated through the non-magnetic conducting part of the magnetic isolating magnetic conducting part; and the magnetic paths between a stator and a rotor above and below the ring change part or the rotation change part are communicated through the magnetic conducting part of the magnetic isolating magnetic conducting part. By adoption of the technical scheme, the electrical precision of the non-contact rotating transformer can be greatly improved. According to the technical scheme, the structure is simple, convenient to process, low in cost and worthy of popularization.
Description
Technical field
The present invention relates to the rotary transformer technology field, particularly relate to a kind of method that improves the electric precision of brushless revolver.
Background technology
Resolver is a kind of accurate electromagnetic induction element, after it is connected with the mains, and sinusoidal, cosine function relation that the amplitude of output voltage becomes with angle of rotor, or in certain angle range, be directly proportional with the corner of rotor.Electrical error is transfer of data with resolver under different angle positions, the corresponding tangent of ratio (or cotangent) angle of two output winding voltages and actual rotational angle poor.Electrical error is the judgment basis that transfer of data is used the resolver precision.
Brushless revolver is not owing to there is brush, therefore its rotor winding is to realize by toroidal transformer with being connected of external circuit, structure is seen Fig. 1, the former side of toroidal transformer and pair side are installed in respectively on stator and the rotor, and can relatively rotate, make to revolve by electromagnetic induction principle to become the rotor winding and indirectly be connected with external circuit.And owing to there is toroidal transformer, therefore the magnetic circuit of the magnetic circuit of just inevitable toroidal transformer and resolver can produce and influence each other, and causes the distortion of two parts magnetic circuit, directly affects the electric precision of resolver.If the magnetic circuit that adopts magnetic conductive part not that its ring is become and revolve change cuts off fully, can cause again ring to become and revolve become part especially ring become part up and down stator and the magnetic circuit between the rotor separately and be subject to certain obstruct and cause magnetic loss, also can affect the electric precision of resolver.Therefore, existing brushless revolver or undesirable.
Summary of the invention
The object of the invention is to for overcoming the deficiencies in the prior art, a kind of method and structure that improves the electric precision of brushless revolver is provided, can avoid the magnetic circuit of toroidal transformer and the magnetic circuit generation of resolver to influence each other, reduce simultaneously the leakage field between two-part stator and rotor, improve the electric precision of resolver.。
For realizing purpose of the present invention, a kind of method that improves the electric precision of brushless revolver of the present invention, wherein, the method by become part at the ring of brushless revolver and revolve become set up between the part non-magnet_conductible material and permeability magnetic material be superimposed together form every the magnetic conductance magnet assembly, partly cut off ring by this not magnetic conduction every the magnetic conductance magnet assembly and become part and revolve the cross one another magnetic circuit that becomes part; Simultaneously by become part every the magnetic conduction part connected ring of magnetic conductance magnet assembly or revolve become part up and down stator and the magnetic circuit between the rotor.
For realizing said method, a kind of brushless revolver structure of the present invention, by as former side's ring set, become rotor, back-up ring, axle, revolve and become rotor, revolve set and casing forms as the ring of pair side, described ring set and ring become the rotor makeup ring and become part, described revolve set and revolve become rotor and form and revolve the change part, wherein, this device is provided with every the magnetic conductance magnet assembly described revolving between change part and the ring change part.
Further, described every the magnetic conductance magnet assembly by being located at described ring set and describedly revolving stator antifreeze plate and the stator magnetic conduction sheet that is superimposed together between set and be located at that described ring becomes rotor and described revolving becomes the rotor antifreeze plate and the rotor magnetic conduction sheet that are superimposed together between the rotor and form; Described stator antifreeze plate and rotor antifreeze plate are the structures that adopts non-magnet_conductible material to make, and described stator magnetic conduction sheet and rotor magnetic conduction sheet are the structures that adopts permeability magnetic material to make.
Further, described stator antifreeze plate and rotor antifreeze plate are located near ring and become iron core one end, and described stator magnetic conduction sheet and rotor magnetic conduction sheet are located near revolving and become iron core one end.
As another improvement of the present invention, described stator magnetic conduction sheet and rotor magnetic conduction sheet respectively are two, be located at respectively near ring change iron core with near revolving the two ends that become iron core, described stator antifreeze plate is clipped between two stator magnetic conduction sheets, and described rotor antifreeze plate is clipped between two rotor magnetic conduction sheets.
Compared with prior art, stator antifreeze plate of the present invention and rotor antifreeze plate adopt non-magnet_conductible material, can become more effective the keeping apart of magnetic circuit that becomes with ring with revolving, and avoid encircling becoming part and revolving becoming influencing each other of part magnetic circuit.Simultaneously, set up stator magnetic conduction sheet and rotor magnetic conduction sheet that the employing permeability magnetic material that is superimposed together with stator antifreeze plate and rotor antifreeze plate is made, can link up stator and the rotor magnetic circuit between up and down.Because ring becomes and revolves the difference of change magnetic circuit line, the magnetic line of force scope that ring set and ring become between the rotor is little, magnetic loss is little, therefore when the space does not allow, this can not arrange stator magnetic conduction sheet and rotor magnetic conduction sheet on one side to become part at ring, and only become part this arranges stator magnetic conduction sheet and rotor magnetic conduction sheet on one side revolving, make that magnetic conduction sheet and antifreeze plate are two-layer to be superimposed together.When the space allows, can become part and ring and become part magnetic conduction sheet all is set revolving, form like this three stacked structures of closing of two magnetic conduction sheets folder a slice antifreeze plates, its better effects if.Owing to adopted technical scheme of the present invention, the electric precision of brushless revolver of the present invention can obtain raising by a relatively large margin.And technical scheme of the present invention is simple in structure, is convenient to processing, and is with low cost, is worthy to be popularized.
Description of drawings
Fig. 1 is the brushless revolver structural representation of prior art;
Fig. 2 is a kind of structural representation of brushless revolver of the present invention;
Description of reference numerals: 1-ring set, the 2-back-up ring, the 3-ring becomes rotor, and 4-axle, 5-revolve the change rotor, and 6-revolves set, 7-casing, 8-stator antifreeze plate, 9-stator magnetic conduction sheet, 10-rotor antifreeze plate, 11-rotor magnetic conduction sheet.
Embodiment
The present invention is described in further detail below in conjunction with drawings and Examples.
See Fig. 1, Fig. 1 is the brushless revolver structural representation of prior art, as we can see from the figure, the brushless revolver structure of prior art is by as former side's ring set 1, become rotor 3, back-up ring 2, axle 4, revolve and become rotor 5, revolve set 6 and casing 7 forms as the ring of pair side, encircle set 1 and encircle change rotor 3 makeup rings change part, revolve set 6 and revolve change rotor 5 compositions and revolve the change part.The brushless revolver of prior art becomes part and revolves to become between the part at ring to be opened wide, and not every magnet assembly, therefore ring becomes part and revolves the magnetic circuit that becomes part and can influence each other, and causes the decline of the electric precision of transformer.
See Fig. 2, Fig. 2 is a kind of structural representation of brushless revolver of the present invention, brushless revolver of the present invention is equally by as former side's ring set 1, become rotor 3, back-up ring 2, axle 4, revolve and become rotor 5, revolve set 6 and casing 7 forms as the ring of pair side, ring set 1 and ring become rotor 3 makeup rings and become part, revolve set 6 and revolve change rotor 5 compositions and revolve the change part, differently be that brushless revolver of the present invention becomes part and ring and becomes between the part and be provided with every magnet assembly revolving.
Continue to see Fig. 2, of the present invention every magnet assembly by being located at described ring set 1 and describedly revolving stator antifreeze plate 8 and the stator magnetic conduction sheet 9 between set 6 and be located at that described ring becomes rotor 3 and the described rotor antifreeze plate 10 and the rotor magnetic conduction sheet 11 that become between the rotor 5 of revolving forms.Stator antifreeze plate 8 and rotor antifreeze plate 10 are the structures that adopt non-magnet_conductible material to make, and described stator magnetic conduction sheet 9 and rotor magnetic conduction sheet 11 are the structures that adopt permeability magnetic material to make.
Because the restriction in space, common stator antifreeze plate 8 and rotor antifreeze plate 10 are located near ring and become part one side, and stator magnetic conduction sheet 9 and rotor magnetic conduction sheet 11 are located near revolving change part one side.To encircle to become partly to intercept with the magnetic circuit that revolves the change part by stator antifreeze plate 8 and rotor antifreeze plate 10 like this and come, because the magnetic circuit between revolving about becoming partly also is subject to certain obstruct because of the setting of antifreeze plate, therefore stator antifreeze plate 8 and rotor antifreeze plate 10 near revolve sides that become part set up can magnetic conduction stator magnetic conduction sheet 9 and rotor magnetic conduction sheet 10, make to revolve set 6 and revolve to become the magnetic circuit of rotor about in the of 5 and obtain conducting.Generally, because the magnetic line of force scope of ring change is less, therefore encircle the obstruct that the up and down magnetic circuit that becomes part is not easy to be subject to antifreeze plate, so on one side of ring change the magnetic circuit between magnetic conduction sheet conducting ring set 1 and the ring change rotor 3 can be set.Just this a kind of scheme of showing among Fig. 2.
In the situation of space permission, perhaps also need to arrange in the situation of magnetic conduction sheet conducting ring set 1 and ring change rotor 3 on one side in the ring change, can become at ring magnetic conduction sheet also is set on one side, the magnetic conduction sheet of formation both sides magnetic conduction is clamped the structure every magnet assembly of the non-magnetic antifreeze plate formation of middle one deck like this, namely all increases magnetic conduction sheet at close ring change iron core with the two ends of revolving the change iron core and clamps middle antifreeze plate.
Certainly, more than be concrete exemplary applications of the present invention, the present invention also has other execution mode, and all employings are equal to the technical scheme of replacement or equivalent transformation formation, all drop within the protection range of the presently claimed invention.
Claims (5)
1. method that improves the electric precision of brushless revolver, it is characterized in that: the method by become part at the ring of brushless revolver and revolve become set up between the part non-magnet_conductible material and permeability magnetic material be superimposed together form every the magnetic conductance magnet assembly, partly cut off ring by this not magnetic conduction every the magnetic conductance magnet assembly and become part and revolve the cross one another magnetic circuit that becomes part; Simultaneously by become part every the magnetic conduction part connected ring of magnetic conductance magnet assembly or revolve become part up and down stator and the magnetic circuit between the rotor.
2. brushless revolver structure, by as former side's ring set (1), as ring change rotor (3), back-up ring (2), the axle (4) of pair side, revolve change rotor (5), revolve set (6) and casing (7) forms, described ring set (1) and ring become rotor (3) makeup ring and become part, described revolve set (6) and revolve become rotor (5) and form and revolve the change part, it is characterized in that: this device becomes part and ring and is provided with every the magnetic conductance magnet assembly between becoming partly described revolving.
3. brushless revolver structure according to claim 2 is characterized in that: described every the magnetic conductance magnet assembly by being located at described ring set (1) and describedly revolving stator antifreeze plate (8) and the stator magnetic conduction sheet (9) that is superimposed together between set (6) and be located at described ring change rotor (3) and the described rotor antifreeze plate (10) and the rotor magnetic conduction sheet (11) that are superimposed together between the change rotor (5) of revolving forms; Described stator antifreeze plate (8) and rotor antifreeze plate (10) are the structures that adopts non-magnet_conductible material to make, and described stator magnetic conduction sheet (9) and rotor magnetic conduction sheet (11) are the structures that adopts permeability magnetic material to make.
4. brushless revolver structure according to claim 3, it is characterized in that: described stator antifreeze plate (8) and rotor antifreeze plate (10) are located near ring and become iron core one end, and described stator magnetic conduction sheet (9) and rotor magnetic conduction sheet (11) are located near revolving and become iron core one end.
5. brushless revolver structure according to claim 3, it is characterized in that: described stator magnetic conduction sheet (9) and rotor magnetic conduction sheet (11) respectively are two, be located at respectively near ring and become iron core and the close two ends that become iron core of revolving, described stator antifreeze plate (8) is clipped between two stator magnetic conduction sheets (9), and described rotor antifreeze plate (10) is clipped between two rotor magnetic conduction sheets (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210479620.9A CN103021645B (en) | 2012-11-23 | 2012-11-23 | Improve method and the structure of brushless revolver electric precision |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210479620.9A CN103021645B (en) | 2012-11-23 | 2012-11-23 | Improve method and the structure of brushless revolver electric precision |
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| Publication Number | Publication Date |
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| CN103021645A true CN103021645A (en) | 2013-04-03 |
| CN103021645B CN103021645B (en) | 2016-04-20 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201210479620.9A Expired - Fee Related CN103021645B (en) | 2012-11-23 | 2012-11-23 | Improve method and the structure of brushless revolver electric precision |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105137235A (en) * | 2015-08-27 | 2015-12-09 | 北京航天控制仪器研究所 | Rotary transformer electric bridge function detection method |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5394760A (en) * | 1992-06-03 | 1995-03-07 | Trw Inc. | Torque sensor for a power assist steering system |
| CN2503583Y (en) * | 2001-09-11 | 2002-07-31 | 北京利尔德科技有限责任公司 | Screened toroidal transformer |
| CN101154835A (en) * | 2006-09-25 | 2008-04-02 | 天津得鑫电机有限公司 | Permanent magnet motor with axial permanent magnetic potential control and compensation function |
| CN201887625U (en) * | 2010-05-04 | 2011-06-29 | 刘新广 | Coreless permanent magnet motor |
| CN202008417U (en) * | 2011-03-31 | 2011-10-12 | 比亚迪股份有限公司 | Non-contact torque sensing device |
| CN202374058U (en) * | 2011-12-28 | 2012-08-08 | 西安微电机研究所 | Toroidal transformer type signal transmission device |
| CN102664095A (en) * | 2012-06-06 | 2012-09-12 | 哈尔滨工业大学 | Double-stator double-channel axial magnetic circuit reluctance type rotary transformer |
| CN202917321U (en) * | 2012-11-23 | 2013-05-01 | 贵州航天林泉电机有限公司 | Non-contact rotary transformer structure |
-
2012
- 2012-11-23 CN CN201210479620.9A patent/CN103021645B/en not_active Expired - Fee Related
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5394760A (en) * | 1992-06-03 | 1995-03-07 | Trw Inc. | Torque sensor for a power assist steering system |
| CN2503583Y (en) * | 2001-09-11 | 2002-07-31 | 北京利尔德科技有限责任公司 | Screened toroidal transformer |
| CN101154835A (en) * | 2006-09-25 | 2008-04-02 | 天津得鑫电机有限公司 | Permanent magnet motor with axial permanent magnetic potential control and compensation function |
| CN201887625U (en) * | 2010-05-04 | 2011-06-29 | 刘新广 | Coreless permanent magnet motor |
| CN202008417U (en) * | 2011-03-31 | 2011-10-12 | 比亚迪股份有限公司 | Non-contact torque sensing device |
| CN202374058U (en) * | 2011-12-28 | 2012-08-08 | 西安微电机研究所 | Toroidal transformer type signal transmission device |
| CN102664095A (en) * | 2012-06-06 | 2012-09-12 | 哈尔滨工业大学 | Double-stator double-channel axial magnetic circuit reluctance type rotary transformer |
| CN202917321U (en) * | 2012-11-23 | 2013-05-01 | 贵州航天林泉电机有限公司 | Non-contact rotary transformer structure |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105137235A (en) * | 2015-08-27 | 2015-12-09 | 北京航天控制仪器研究所 | Rotary transformer electric bridge function detection method |
| CN105137235B (en) * | 2015-08-27 | 2018-04-10 | 北京航天控制仪器研究所 | A kind of function detecting method of rotary transformer electric bridge |
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| CN103021645B (en) | 2016-04-20 |
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Granted publication date: 20160420 Termination date: 20161123 |