CN105590745A - Rotary transformer - Google Patents
Rotary transformer Download PDFInfo
- Publication number
- CN105590745A CN105590745A CN201610147755.3A CN201610147755A CN105590745A CN 105590745 A CN105590745 A CN 105590745A CN 201610147755 A CN201610147755 A CN 201610147755A CN 105590745 A CN105590745 A CN 105590745A
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- magnetic
- cannelure
- rotary transformer
- magnetic core
- solenoid
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F38/00—Adaptations of transformers or inductances for specific applications or functions
- H01F38/18—Rotary transformers
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/24—Magnetic cores
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/28—Coils; Windings; Conductive connections
- H01F27/30—Fastening or clamping coils, windings, or parts thereof together; Fastening or mounting coils or windings on core, casing, or other support
- H01F27/306—Fastening or mounting coils or windings on core, casing or other support
Abstract
The invention discloses a rotary transformer which is used for achieving transmission of broadband signals. The rotary transformer comprises a stator and a rotor, the rotor and the stator are not in physical contact, magnetic cores of the same structure are adopted for the rotor and the stator, each magnetic core comprises a first magnetizer, a second magnetizer and a third magnetizer, the first magnetizers, the second magnetizers and the third magnetizers form magnetic circuits of the magnetic cores, and the areas of all magnetic flux surfaces on the magnetic circuits are the same. According to the rotary transformer, by optimizing the structures of the magnetic cores, the areas of all cross sections on the magnetic circuits of the magnetic cores are the same or approximately the same so as to lower magnetic resistance, so that the loss in high-frequency signal transmission is lowered, and broadband signals wider in frequency range can be transmitted under the situation that it is guaranteed that signals are distortionless.
Description
Technical field
The present invention relates to field transformer, relate in particular to a kind of rotary transformer.
Background technology
When rotary transformer uses in circuit, more or less all can there is certain insertion loss, insert and damageConsumption can decibel form represent, it is the modal measuring technique index of rotary transformer performance. OneAs, in identical magnetic field, the insertion loss of rotary transformer is less, the performance of rotary transformerBetter.
The insertion loss of rotary transformer generally can increase along with the increase of the frequency of electromagnetic field of living in, existingSome rotary transformers are unfavorable for the transmission of broadband signal, because it is in the time working in high frequency magnetic field, asFrequency is the even elect magnetic field of higher frequency of 100MHz, insertion loss can be large especially, makes HFSSignal is serious distortion.
Summary of the invention
The object of the present invention is to provide a kind of rotary transformer, solve above technical problem.
For reaching this object, the present invention by the following technical solutions:
A kind of rotary transformer, comprises stator and rotor; Between described rotor and described stator, physics does not connectTouch; Described rotor adopts the identical magnetic core of structure with described stator;
Described magnetic core is ferrite; The middle part of described magnetic core offers for connecting and turns the connecting through hole of joining axle;On described magnetic core, be provided with one for assembling the cannelure of solenoid; The interior ring diameter of described cannelure is largeIn the diameter of described connecting through hole; The degree of depth of described cannelure is less than the height of described magnetic core; Wherein, instituteStating the center of circle of connecting through hole and the center of circle of described cannelure overlaps;
Described magnetic core comprises the first magnetic conductor, the second magnetic conductor and the 3rd magnetic conductor; Described the first magnetic conductionBody is the ferrite portion adjoining between described connecting through hole and described cannelure; Described the second magnetic conductor is instituteState the ferrite portion of magnetic core perimembranous; Described the 3rd magnetic conductor is for connecting described the first magnetic conduction portion and described secondThe ferrite portion of magnetic conduction portion;
Described the first magnetic conductor, described the second magnetic conductor and described the 3rd magnetic conductor form described magnetic coreMagnetic circuit; Each cross-sectional area on described magnetic circuit equates.
The present embodiment is by optimizing the structure of magnetic core, makes on the magnetic circuit of magnetic core each cross-sectional area equate or approximateEquate, to reduce magnetic resistance, and then reduce the loss in high-frequency signal transmission, ensureing letter thereby can realizeIn number distortionless situation, can the wider broadband signal of transmission frequency.
Preferably, the perimembranous of described magnetic core offers a line outlet, and described line outlet is communicated with described annularGroove, can stretch out outside described magnetic core by described line outlet the two ends of described solenoid. Line outlet is setSo that draw the termination of solenoid, be convenient to wiring.
Preferably, described magnetic core is columniform ferrite;
The diameter of described connecting through hole is d1, and the interior circular diameter of described cannelure is d2, described cannelureOutside diameter is d3, and the diameter of described magnetic core is d4; The width of described line outlet is B; Described magnetic coreBe highly H; The degree of depth of described cannelure is t;
Described magnetic circuit comprises the first magnetic flux face, the second magnetic flux face and the 3rd magnetic flux face; Described the first magnetic flux faceFor the annular cross section of described the first magnetic conductor, described the second magnetic flux face is the ring of described the second magnetic conductorThe cross section of shape, described the 3rd magnetic flux face is the face of cylinder of described the 3rd magnetic conductor;
The area of described the first magnetic flux face is π * (d2*d2/4-d1*d1/4);
The area of described the second magnetic flux face is π * (d4*d4/4-d3*d3/4)-B* (d4-d3)/2;
The area of described the 3rd magnetic flux face is π * d2* (H-t);
The area of described the first magnetic flux face, described the second magnetic flux face and described the 3rd magnetic flux face equates.
Described the first magnetic flux face and described the second magnetic flux face are annulus, and described the 3rd magnetic flux face is the face of cylinder;Wherein, described the second magnetic flux face has line outlet, therefore need deduct this part area; In addition, due to d3 and d2Difference very little, therefore described the 3rd magnetic flux face adopt π * d2* (H-t) calculate, its error of bringing canIgnore.
Preferably, the wire diameter of described solenoid is d5; The number of turns that in described cannelure, solenoid is reeledFor N;
d3-d2＞2*d5*N。
So design cannelure, can ensure that cannelure has enough spaces with assembling solenoid.
Preferably, the wire diameter d5 of described solenoid is 0.5 millimeter, solenoid volume in described cannelureAround number of turns N be 2.
In the present embodiment, from lot of experimental data, can find, the number of turns of solenoid is more, insertsLoss is larger, and meanwhile, the wire diameter that increases solenoid also has the attenuating of utilization insertion loss, described electromagnetic wireThe wire diameter d5 of circle is 0.5 millimeter, and the number of turns N that in described cannelure, solenoid is reeled is 2, its insertionLoss is less, is the preferably embodiment of one of the present embodiment.
Preferably, the width B of described line outlet is 3 millimeters.
The wire diameter d5 of described solenoid is 0.5 millimeter, and two are 1 millimeter, and described electromagnetic wireWill there be certain distance at the two ends of circle, to prevent that short circuit from appearring in short circuit. In the present embodiment, line outlet wideDegree B is 3 millimeters and can satisfies the demands.
Preferably, the distance between described rotor and described stator is 0.09 millimeter; The diameter of described magnetic coreFor d4 is less than 19 millimeters; The height of described magnetic core is less than 6.2 millimeters.
In the present embodiment, the diameter of magnetic core and be highly the process requirements of product, between rotor and stator everyOpen certain distance, to realize the transmission of non-contact signal; But this distance is larger, and insertion loss is larger,On the basis of existing processing technology, 0.09 millimeter can meet the transmission that can realize non-contact signal,Known from experimental data, distance is 0.09 millimeter, and rotary transformer is work under the frequency of 1-200MHzWhile work, insertion loss is less than 3 decibels, meets performance requirement.
Preferably, the upper surface of described solenoid is coated with magnetic glue.
Do not changing under design premises, by cover magnetic glue on solenoid, can narrow working frequency range,Can not change under design premises, adjust operating frequency. As in order to forbid that the following frequency signal of 1MHz is logicalCross, wrap online surface coverage magnetic glue, part magnetic circuit forms loop by magnetic glue, makes the low-frequency range magnetic field cannotBe delivered to stator and go over there, can effectively prevent low-band signal transmission.
Preferably, described magnetic core is nickel-zinc ferrite; The magnetic conductivity of described nickel-zinc ferrite is 200～1800.
Ni Zn ferrimagnet bulk permeability is lower, and crystal grain is thin and little, and is loose structure, have high frequency,Wideband, low-loss feature.
Preferably, the number of turns that in the cannelure of described rotor, solenoid is reeled and the cannelure of described statorThe number of turns that interior solenoid is reeled is identical. Can further reduce insertion loss.
Beneficial effect of the present invention: the present embodiment is by optimizing the structure of magnetic core, makes on the magnetic circuit of magnetic core eachCross-sectional area equates or approximately equal, to reduce magnetic resistance, and then reduces the loss in high-frequency signal transmission,Ensureing in the distortionless situation of signal thereby can realize, can the wider broadband signal of transmission frequency.
Brief description of the drawings
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, below will be to realityThe accompanying drawing of executing required use in example or description of the Prior Art is briefly described, apparently, belowAccompanying drawing in description is only some embodiments of the present invention, for those of ordinary skill in the art,Do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.
The structural representation of the rotary transformer that Fig. 1 provides for the embodiment of the present invention.
The structural representation of the magnetic core that Fig. 2 provides for the embodiment of the present invention.
The A-A of the magnetic core that Fig. 3 provides for the embodiment of the present invention is to profile.
The structural representation of the magnetic core after the fit on solenoid that Fig. 4 provides for the embodiment of the present invention.
In figure:
10, rotor; 20, stator; 30, magnetic core; 31, connecting through hole; 32, cannelure; 33,One magnetic conductor; 34, the second magnetic conductor; 35, the 3rd magnetic conductor; 40, solenoid; 341, line outlet.
Detailed description of the invention
The embodiment of the present invention provides a kind of rotary transformer, for realizing the transmission of broadband signal.
For making goal of the invention of the present invention, feature, advantage can be more obvious and understandable, below willIn conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, completeGround is described, and obviously, the embodiments described below are only the present invention's part embodiment, but not allEmbodiment. Based on the embodiment in the present invention, those of ordinary skill in the art are not making creativenessAll other embodiment that obtain under work prerequisite, belong to the scope of protection of the invention.
Further illustrate technical scheme of the present invention below in conjunction with accompanying drawing and by detailed description of the invention.
Please refer to Fig. 1, the structural representation of the rotary transformer that Fig. 1 provides for the embodiment of the present invention. This revolvesChange depressor and comprise rotor 10 and stator 20. Physical contact not between rotor 10 and stator 20.
In the present embodiment, rotor 10 adopts with stator 20 magnetic core 30 that structure is identical. Specifically please refer to figureThe structural representation of the magnetic core 30 that 2, Fig. 2 provides for the embodiment of the present invention.
Because of nickel-zinc ferrite, it has high frequency, wideband, low-loss feature. Therefore in the present embodiment, magneticCore 30 selects to have high-frequency low-consumption Ferrite Material, is preferably nickel-zinc ferrite and makes, more excellent, choosingGet the nickel-zinc ferrite of magnetic conductivity in 200～1800 scopes.
Concrete, the middle part of magnetic core 30 offers connecting through hole 31. Rotary transformer rotor 10 HesStator 20 is fixed on one and turns and join on axle, and stator 20 maintains static turning to join on axle, joins axle and drives by turningRotor 10 rotates to realize the transmission of signal. Wherein, the connecting through hole 31 of magnetic core 30 is for connecting thisTurn and join axle. Rotor 10, stator 20 connects that to turn the mode of joining axle be routine techniques means, therefore do not repeat at this.
Please continue to refer to Fig. 3, the A-A of the magnetic core that Fig. 3 provides for the embodiment of the present invention is to profile. Fig. 3In, be longitudinally the short transverse of magnetic core 30, the depth direction of cannelure 32, the degree of depth of connecting through hole 31Direction.
Concrete, magnetic core 30 is a columniform ferrite. The cannelure 32 being provided with on magnetic core 30,The interior ring diameter of cannelure 32 is greater than the diameter of connecting through hole 31, and the degree of depth of cannelure 32 is less than magnetic core 30Height; Wherein, the center of circle of the center of circle of magnetic core 30, connecting through hole 31 and the center of circle of cannelure 32 overlap.
Wherein, cannelure 32, for assembling or coiling solenoid 40, specifically please refer to Fig. 4, and Fig. 4 isThe structural representation of the magnetic core after the fit on solenoid that the embodiment of the present invention provides.
In the present embodiment, according to the magnetic circuit forming after rotary transformer energising, can be by the iron oxygen of magnetic core 30Body is divided into three parts, i.e. the first magnetic conductor 33, the second magnetic conductor 34 and the 3rd magnetic conductor 35.
As shown in Figure 3, the first magnetic conductor 33 is for adjoining the annular between connecting through hole 31 and cannelure 32The ferrite portion of cylinder; The second magnetic conductor 34 is the ferrite portion of the circular cylinder of magnetic core 30 perimembranous; TheThe ferrite portion that three magnetic conductors 35 are the circular cylinder of connection the first magnetic conduction portion 33 and the second magnetic conduction portion 34.And according to the trend of the magnetic line of force, in Fig. 3, cross section, second magnetic conductor 34 of definition the first magnetic conductor 33Cross section, the cross section that the face of cylinder of the 3rd magnetic conductor is magnetic circuit. For ease of distinguishing and understanding, more fixedThe cross section of justice the first magnetic conductor 33 is the first magnetic flux face, and the cross section of the second magnetic conductor 34 is the second magneticLogical face, the face of cylinder of the 3rd magnetic conductor 35 is the 3rd magnetic flux face, and make described the first magnetic flux face, described inThe area of the second magnetic flux face, described the 3rd magnetic flux face equates.
The present embodiment is by optimizing the structure of magnetic core 30, and each cross-sectional area on the magnetic circuit of magnetic core 30 is equatedOr approximately equal, to reduce magnetic resistance, and then reduce the loss in high-frequency signal transmission, thereby can realizeEnsure in the distortionless situation of signal, can the wider broadband signal of transmission frequency.
In the present embodiment, the perimembranous of magnetic core 30, offers a line outlet on the 3rd magnetic conductor 35341, so that draw the termination of solenoid 40, be convenient to wiring. Concrete, line outlet 341 is communicated withCannelure 32, can stretch out outside magnetic core 30 by line outlet 341 two ends of solenoid 40. Preferably,The degree of depth of line outlet 341 is slightly larger than the degree of depth of cannelure 32.
More specifically, for making described the first magnetic flux face, described the second magnetic flux face, described the 3rd magneticThe area of logical face is equal, and the present embodiment is defined as follows relative dimensions:
The diameter of connecting through hole 31 is d1, and the interior circular diameter of cannelure 32 is d2, outside cannelure 32Circular diameter is d3, and the diameter of magnetic core 30 is d4; The width of line outlet 341 is B; The height of magnetic core 30For H; The degree of depth of cannelure 32 is t; Wherein, in Fig. 2, be laterally the width of line outlet 341.
The account form of magnetic flux face area is: the area S1=π * (d2*d2/4-d1*d1/4) of the first magnetic flux face;Area S1 ≈ π * (the d4*d4/4-d3*d3/4)-B* (d4-d3)/2 of the second magnetic flux face; The face of the 3rd magnetic flux faceLong-pending S3 ≈ π * d2* (H-t).
Described the first magnetic flux face and described the second magnetic flux face are annulus, and described the 3rd magnetic flux face is the face of cylinder;Wherein, the second magnetic conductor 34 has line outlet 341, therefore need deduct this part area; In addition, due to d3 andThe difference of d2 is very little, therefore described the 3rd magnetic flux face adopts π * d2* (H-t) to calculate, and the error that it bringsCan ignore.
Preferably, the wire diameter of solenoid 40 is d5; The number of turns that the interior solenoid 40 of cannelure 32 is reeledFor N; Make d3-d2 > 2*d5*N. So the cannelure 32 of design, can ensure that cannelure 32 has enoughSpace is with assembling solenoid 40.
The magnetic core 30 that adopts this optimization, it can effectively reduce insertion loss.
Wherein, the preferential front experimental data of structure is as shown in Table 1:
Table one
Known from table one, after frequency increases, insertion loss can increase thereupon, and solenoid 40The number of turns is less, and insertion loss is less.
Experimental data after structure is preferential is as shown in Table 2:
Table two
As can be known from the table data, the structure of the magnetic core 30 of sequence number 17 optimums. It is the wire diameter of solenoid 40D5 is 0.5 millimeter, and the number of turns N that the interior solenoid 40 of cannelure 32 is reeled is 2.
In the present embodiment, from lot of experimental data, can find, the number of turns of solenoid 40 is more, insertsEnter loss larger, meanwhile, the wire diameter that increases solenoid 40 also has the attenuating of utilization insertion loss, electromagnetic wireThe wire diameter d5 of circle 40 is 0.5 millimeter, and the number of turns N that in described cannelure, solenoid is reeled is 2, and it is insertedEntering loss less, is the preferably embodiment of one of the present embodiment.
Concrete, the width B of line outlet 341 is 3 millimeters.
The wire diameter d5 of solenoid 40 is 0.5 millimeter, and two are 1 millimeter, and solenoid 40Two ends to have certain distance, to prevent that short circuit from appearring in short circuit. In the present embodiment, the width B of line outletBeing 3 millimeters can satisfy the demands.
Preferably, the distance between rotor 10 and stator 20 is 0.09 millimeter; The diameter of magnetic core 30 is d4Be less than 19 millimeters; The height of magnetic core 30 is less than 6.2 millimeters.
In the present embodiment, the diameter of magnetic core 30 and be highly the process requirements of product, rotor 10 and statorSpaced apart between 20, to realize the transmission of non-contact signal; But this distance is larger, insertion lossLarger, on the basis of existing processing technology, 0.09 millimeter can meet and can realize non-contact signalTransmission, known from experimental data, distance be 0.09 millimeter, rotary transformer is 1-200MHz'sWhile work under frequency, insertion loss is less than 3 decibels, meets performance requirement.
Preferably, the upper surface of solenoid 40 is coated with magnetic glue.
Under the structural design prerequisite that does not change magnetic core 30, by cover magnetic glue on solenoid 40,Can narrow working frequency range, adjust operating frequency. As in order to forbid that the following frequency signal of 1MHz passes through,At solenoid 40 surface coverage magnetic glue, part magnetic circuit by magnetic glue form loop, make low-frequency range magnetic field withoutMethod is delivered to stator 20 and goes over there, can effectively prevent low-band signal transmission. Specific experiment data are in TableThree, as follows:
Table three
Concrete, the number of turns that the interior solenoid 40 of cannelure 32 of rotor 10 is reeled and the ring of stator 20The number of turns that the interior solenoid 40 of shape groove 32 is reeled is identical. Can further reduce insertion loss.
In the present embodiment, by adjusting material and the glue ratio of magnetic in magnetic glue, wherein, the material of magneticMatter comprises nickel-zinc ferrite, manganese-zinc ferrite, MgZn ferrite, lithium-zinc-ferrite, nickel manganese-zinc ferriteOr other soft magnetic metal, if add the material of the high loss of low frequency in glue, the insertion of 1MHz～5MHzLoss will be larger, therefore according to demand, adjusts magnetic glue formula, do not need to change product structure design, veryEasily can reach the object of adjusting working frequency range.
In the present embodiment, magnetic core 30 adopts Ferrite Material to make, and is preferably nickel-zinc ferrite, Ke YiliSeparate, magnetic core 30 also can adopt other materials to make, all should be within protection scope of the present invention.
In the present embodiment, the area of the 3rd magnetic flux face adopts π * d2* (H-t) to calculate, be understandable that,The area of the 3rd magnetic flux face also can adopt π * (d2+d3) * (H-t)/2 to calculate, and does not affect technology of the present inventionEffect, it all should be within protection scope of the present invention.
The above, above embodiment only, in order to technical scheme of the present invention to be described, is not intended to limit;Although the present invention is had been described in detail with reference to previous embodiment, those of ordinary skill in the art shouldWork as understanding: its technical scheme that still can record aforementioned each embodiment is modified, or to itMiddle part technical characterictic is equal to replacement; And these amendments or replacement do not make appropriate technical solutionEssence depart from the spirit and scope of various embodiments of the present invention technical schemes.
Claims (10)
1. a rotary transformer, comprises stator and rotor, it is characterized in that: described rotor and described fixedPhysical contact not between son; Described rotor adopts the identical magnetic core of structure with described stator;
Described magnetic core is ferrite; The middle part of described magnetic core offers for connecting and turns the connecting through hole of joining axle;On described magnetic core, be provided with one for assembling the cannelure of solenoid; The interior ring diameter of described cannelure is largeIn the diameter of described connecting through hole; The degree of depth of described cannelure is less than the height of described magnetic core; Wherein, instituteStating the center of circle of connecting through hole and the center of circle of described cannelure overlaps;
Described magnetic core comprises the first magnetic conductor, the second magnetic conductor and the 3rd magnetic conductor; Described the first magnetic conductionBody is the ferrite portion adjoining between described connecting through hole and described cannelure; Described the second magnetic conductor is instituteState the ferrite portion of magnetic core perimembranous; Described the 3rd magnetic conductor is for connecting described the first magnetic conduction portion and described secondThe ferrite portion of magnetic conduction portion;
Described the first magnetic conductor, described the second magnetic conductor and described the 3rd magnetic conductor form described magnetic coreMagnetic circuit; Each cross-sectional area on described magnetic circuit equates.
2. rotary transformer according to claim 1, is characterized in that, the perimembranous of described magnetic core is openedBe provided with a line outlet, described line outlet is communicated with described cannelure, and the two ends of described solenoid can be led toCrossing described line outlet stretches out outside described magnetic core.
3. rotary transformer according to claim 2, is characterized in that, described magnetic core is cylindricalFerrite;
The diameter of described connecting through hole is d1, and the interior circular diameter of described cannelure is d2, described cannelureOutside diameter is d3, and the diameter of described magnetic core is d4; The width of described line outlet is B; Described magnetic coreBe highly H; The degree of depth of described cannelure is t;
Described magnetic circuit comprises the first magnetic flux face, the second magnetic flux face and the 3rd magnetic flux face; Described the first magnetic flux faceFor the annular cross section of described the first magnetic conductor, described the second magnetic flux face is the ring of described the second magnetic conductorThe cross section of shape, described the 3rd magnetic flux face is the face of cylinder of described the 3rd magnetic conductor;
The area of described the first magnetic flux face is π * (d2*d2/4-d1*d1/4);
The area of described the second magnetic flux face is π * (d4*d4/4-d3*d3/4)-B* (d4-d3)/2;
The area of described the 3rd magnetic flux face is π * d2* (H-t);
The area of described the first magnetic flux face, described the second magnetic flux face and described the 3rd magnetic flux face equates.
4. rotary transformer according to claim 3, is characterized in that, the line of described solenoidFootpath is d5; The number of turns that in described cannelure, solenoid is reeled is N;
d3-d2＞2*d5*N。
5. rotary transformer according to claim 4, is characterized in that, the line of described solenoidFootpath d5 is 0.5 millimeter, and the number of turns N that in described cannelure, solenoid is reeled is 2.
6. rotary transformer according to claim 5, is characterized in that, the width of described line outletB is 3 millimeters.
7. rotary transformer according to claim 3, is characterized in that, described rotor and described fixedDistance between son is 0.09 millimeter; The diameter of described magnetic core is that d4 is less than 19 millimeters; Described magnetic coreHighly be less than 6.2 millimeters.
8. rotary transformer according to claim 3, is characterized in that, described solenoid upperSurface coverage has magnetic glue.
9. rotary transformer according to claim 3, is characterized in that, described magnetic core is nickel zinc-ironOxysome; The magnetic conductivity of described nickel-zinc ferrite is 200～1800.
10. rotary transformer according to claim 1, is characterized in that, the annular of described rotorThe number of turns that in the number of turns that in groove, solenoid is reeled and the cannelure of described stator, solenoid is reeled is identical.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610147755.3A CN105590745B (en) | 2016-03-15 | 2016-03-15 | A kind of rotary transformer |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610147755.3A CN105590745B (en) | 2016-03-15 | 2016-03-15 | A kind of rotary transformer |
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| CN105590745A true CN105590745A (en) | 2016-05-18 |
| CN105590745B CN105590745B (en) | 2017-07-21 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107452480A (en) * | 2017-07-26 | 2017-12-08 | 南通壹选工业设计有限公司 | A kind of adjustable transformer |
| TWI721524B (en) * | 2019-08-13 | 2021-03-11 | 徐夫子 | Resonant generator |
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| US5347256A (en) * | 1991-04-26 | 1994-09-13 | Matsushita Electric Industrial Co., Ltd. | Rotary transformer |
| CN101282067A (en) * | 2008-05-15 | 2008-10-08 | 中国科学院电工研究所 | Brushless double-mechanical-port motor |
| CN104538160A (en) * | 2014-12-31 | 2015-04-22 | 上海电机学院 | Phase position and voltage adjusting device |
| CN204388778U (en) * | 2015-02-02 | 2015-06-10 | 九江精达检测技术有限公司 | A kind ofly respond to the round induction synchrometer that output signal is large, antijamming capability is strong |
| CN205609340U (en) * | 2016-03-15 | 2016-09-28 | 东莞铭普光磁股份有限公司 | Rotary transformer |
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2016
- 2016-03-15 CN CN201610147755.3A patent/CN105590745B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5347256A (en) * | 1991-04-26 | 1994-09-13 | Matsushita Electric Industrial Co., Ltd. | Rotary transformer |
| CN101282067A (en) * | 2008-05-15 | 2008-10-08 | 中国科学院电工研究所 | Brushless double-mechanical-port motor |
| CN104538160A (en) * | 2014-12-31 | 2015-04-22 | 上海电机学院 | Phase position and voltage adjusting device |
| CN204388778U (en) * | 2015-02-02 | 2015-06-10 | 九江精达检测技术有限公司 | A kind ofly respond to the round induction synchrometer that output signal is large, antijamming capability is strong |
| CN205609340U (en) * | 2016-03-15 | 2016-09-28 | 东莞铭普光磁股份有限公司 | Rotary transformer |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107452480A (en) * | 2017-07-26 | 2017-12-08 | 南通壹选工业设计有限公司 | A kind of adjustable transformer |
| TWI721524B (en) * | 2019-08-13 | 2021-03-11 | 徐夫子 | Resonant generator |
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| Publication number | Publication date |
|---|---|
| CN105590745B (en) | 2017-07-21 |
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