CN206673811U - Rotary transformer and brushless resovler - Google Patents
Rotary transformer and brushless resovler Download PDFInfo
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- CN206673811U CN206673811U CN201720337343.6U CN201720337343U CN206673811U CN 206673811 U CN206673811 U CN 206673811U CN 201720337343 U CN201720337343 U CN 201720337343U CN 206673811 U CN206673811 U CN 206673811U
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Abstract
The utility model discloses a kind of rotary transformer and brushless resovler, and the rotary transformer includes：Rotor, rotor include rotor core, and rotor core is straight channel type iron core, and groove profile is circular trough；Stator, stator include stator core, and stator core is straight channel type iron core, and groove profile is the dovetail groove of parallel teeth；The rotor slot number Z of rotor corerAnd the number of stator slots Z of stator coresMeet Zs≠Zr, Zs≠2Zr.The stator core and rotor core of the utility model rotary transformer use the iron core of straight channel type, so as to realize that stator winding and rotor windings are automatically offline, improve the productivity ratio of rotary transformer.
Description
Technical field
Electromagnetic sensor technical field is the utility model is related to, more particularly to a kind of rotary transformer and brushless rotation become
Depressor.
Background technology
Brushless resovler, or for synchronous decomposer with unrivaled reliability, extraordinary anti-adverse environment
The advantages such as the ability of condition, high-speed cruising ability so that its application field is more and more extensive, is applied especially to military, aviation boat
The field such as it.
Brushless resovler is mainly used in the rotating shaft angular travel and angular speed of measurement motor, in order to ensure measurement accuracy,
The slot ripples in brushless rotation power transformation depressor must be eliminated, or slot ripples is reduced to OK range, and in the prior art, brushless rotation
The stator and rotor core for changing depressor generally use flume structure.
But the stator core of flume structure and rotor core superposition mould are complicated, the automatic inserting-coil process difficulty of its winding
Greatly, low production efficiency, it is unfavorable for the wide variety of development of brushless resovler.
Utility model content
Main purpose of the present utility model is to propose a kind of rotary transformer and brushless resovler, it is intended to is solved high-precision
Spend the problem of rotary transformer is automatic offline difficult.
To achieve the above object, the utility model proposes a kind of rotary transformer, the rotary transformer includes：
Rotor, the rotor include rotor core, and the rotor core is straight channel type iron core, and groove profile is circular trough；
Stator, the stator include stator core, and the stator core is straight channel type iron core, and groove profile is the ladder of parallel teeth
Shape groove；
The rotor slot number Z of the rotor corerAnd the number of stator slots Z of the stator coresMeet Zs≠Zr,
Zs≠2Zr。
Preferably, the rotor slot number ZrFor 16, the number of stator slots is ZsFor 12.
Preferably, the rotor also includes rotor windings, and the rotor windings are embedded at institute with short distance Sine distribution rule
In the straight trough for stating rotor core, the winding pitch y of the rotor windingsrFor 6.
Preferably, the rotor windings include sinusoidal phase winding and cosine phase winding, the rotor windings it is sinusoidal mutually around
Each slot coil number of turn N of grouprciAccording to the first preset formulaSet；The rotor windings it is remaining
Each slot coil number of turn N of string phase windingrciAccording to the second preset formula Set.
Preferably, the sine-phase coil of the rotor windings is symmetrical above and below two layers in each groove, it is described it is sinusoidal mutually around
The upper coil number of turn of group is according to the 3rd preset formulaSet；
The cosine-phase coil of the rotor windings is symmetrical above and below two layers in each groove, the upper strata of the cosine phase winding
Coil turn is according to the 4th preset formulaSet.
Preferably, the stator also includes stator winding, and the stator winding is embedding with tooth pole fractional-slot Sine distribution rule
It is placed in the straight trough of the stator core, the winding pitch y of the stator windingsFor 1.
Preferably, the stator winding includes sinusoidal phase winding and cosine phase winding, the stator winding it is sinusoidal mutually around
Each slot coil number of turn N of grouprciAccording to the 5th preset formulaSet；The cosine of the stator winding
Each slot coil number of turn N of phase windingsciAccording to the 6th preset formula Set.
Preferably, coil turn of the sine-phase coil of the stator winding on each tooth is carried out according to the 7th preset formula
DebuggingSet；Coil turn of the cosine-phase coil of the stator winding on each tooth
It is several according to the 8th preset formulaSet.
The utility model also proposes a kind of brushless resovler, the brushless resovler include toroidal transformer and
Rotary transformer as described above, the stator winding of the toroidal transformer are used for incoming transport electricity, the toroidal transformer
One rotor windings of rotor windings and the rotary transformer are electrically connected, another phase rotor windings of the rotary transformer
The mutual short circuit of head end and end；The rotary transformer includes：Rotor, the rotor include rotor core, the rotor core
For straight channel type iron core, and groove profile is circular trough；Stator, the stator include stator core, and the stator core is straight channel type iron
Core, and groove profile is the dovetail groove of parallel teeth；The rotor slot number Z of the rotor corerAnd the number of stator slots Z of the stator coresIt is full
Sufficient Zs≠Zr, Zs≠2Zr。
The stator core and rotor core of the utility model rotary transformer use the iron core of straight channel type, and rotor slot number
Zr, number of stator slots ZsMeet Zs≠Zr, Zs≠2ZrGroove coordinate so that stator winding and rotor windings using it is sinusoidal mutually around
In the case of group, slot ripples caused by primary side winding, vice-side winding does not absorb；And the slot ripples that vice-side winding can absorb, it is former
Side winding is not produced, and fairly small degree is arrived so as to weaken or eliminate slot ripples.The stator of the utility model rotary transformer
Iron core and rotor core use the iron core of straight channel type, so as to realize that stator winding and rotor windings are automatically offline, improve rotation
The productivity ratio of transformer, further, since the utility model rotary transformer can realize it is automatic offline, under manually
Line, so as to reduce the production cost of rotary transformer, artificial productivity is liberated.
Brief description of the drawings
, below will be to embodiment in order to illustrate more clearly of the utility model embodiment or technical scheme of the prior art
Or the required accompanying drawing used is briefly described in description of the prior art, it should be apparent that, drawings in the following description are only
It is some embodiments of the utility model, for those of ordinary skill in the art, is not paying the premise of creative work
Under, other accompanying drawings can also be obtained according to the structure shown in these accompanying drawings.
Fig. 1 is the structural representation of rotor core in this rotary transformer；
Fig. 2 is the structural representation of stator core in this rotary transformer；
Fig. 3 is the structural representation of rotor windings in the utility model rotary transformer；
Fig. 4 is the structural representation of stator winding in the main rotary transformer of the utility model；
Fig. 5 is the electrical block diagram of the embodiment of the utility model brushless resovler one.
Drawing reference numeral explanation：
Realization, functional characteristics and the advantage of the utility model purpose will be described further referring to the drawings in conjunction with the embodiments.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the embodiment of the utility model is carried out
Clearly and completely describing, it is clear that described embodiment is only part of the embodiment of the present utility model, rather than all
Embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are not making creative work premise
Lower obtained every other embodiment, belong to the scope of the utility model protection.
If it is to be appreciated that related in the utility model embodiment directionality instruction (such as upper and lower, left and right, it is preceding,
Afterwards ...), then directionality instruction be only used for explain it is relative between each part under a certain particular pose (as shown in drawings)
Position relationship, motion conditions etc., if the particular pose changes, directionality instruction also correspondingly changes therewith.
If, should " first ", " the in addition, relate to the description of " first ", " second " etc. in the utility model embodiment
Two " etc. description is only used for describing purpose, and it is not intended that instruction or implying its relative importance or implicit indicating meaning
The quantity of the technical characteristic shown.Thus, " first " is defined, the feature of " second " can express or implicitly include at least one
Individual this feature.In addition, the technical scheme between each embodiment can be combined with each other, but must be with ordinary skill
Personnel can be implemented as basis, and this technical side is will be understood that when the combination appearance of technical scheme is conflicting or can not realize
The combination of case is not present, also not within the protection domain of the requires of the utility model.
The utility model proposes a kind of rotary transformer.
Referring to figs. 1 to Fig. 4, in the embodiment of the utility model one, the rotary transformer includes rotor (figure does not indicate)
And stator (figure does not indicate).
Usually, the rotor of rotary transformer is arranged concentrically is mainly used in the inner side of circular stator, rotary transformer
For measuring the rotating shaft angular travel of rotating object and angular speed, rotary transformer is in synchro system and digital servosystem
Available for transmission corner or electric signal, and can be used in resolver as the resolving of function.Due to rotary transformer master
The height-precision that be applied to rotating object measures, it is therefore necessary to the slot ripples in brushless rotation power transformation depressor is eliminated, or tooth is humorous
Ripple is reduced to OK range to ensure precision, and in the prior art, the stator core 21 and rotor core of brushless resovler
11 are generally realized using flume structure.But the stator core 21 of flume structure and rotor core 11 are superimposed mould complexity,
The automatic inserting-coil process difficulty of its winding is big.In order to facilitate the automatic offline of rotor windings 12 and stator winding 22, in the present embodiment,
The rotor includes rotor core 11, and the rotor core 11 is straight channel type iron core, and groove profile is circular trough；The stator includes stator
Iron core 21, the stator core 21 is straight channel type iron core, and groove profile is the dovetail groove of parallel teeth.Rotor is automatic offline easy, adopts
Slot insulation is carried out with spraying coating process, flute profile is smaller, and in the present embodiment, rotor slot is circular trough.Stator it is automatic it is offline relatively
Difficulty, groove are embedded in coil rack (not shown) coiling afterwards, and flute profile is larger, is designed as the dovetail groove of parallel teeth, are easy to automatic
The plastic pressure forming of offline coil rack.
In order that stator winding 22 and rotor windings 12 are arranged to two-phase, the symmetric winding of two pairs of pole, the He of stator core 21
The slot number of rotor core 11 is arranged to 4 multiple, while in order to avoid the primary and secondary side of stator winding 22 and rotor windings 12
Slot ripples coupling, number of stator slots Zs, rotor slot number Zr meet Zs ≠ Zr, Zs ≠ 2Zr.
Rotary transformer output potential amplitude E includes fundamental wave E1With higher hamonic wave potential E ν, and meet：
In formula (3), K is the constant relevant with core material, size；IoFor no-load current；Ws、WrRespectively stator around
Group 22, the actual number of turn of rotor windings 12；Kws、KwrRespectively stator winding 22, the fundamental wave winding coefficient ν of rotor windings 12 are
Overtone order；Kwsν、KwrνThe respectively ν subharmonic winding coefficients of stator winding 22, rotor windings 12.Substitution can obtain, most low order
Slot ripples is respectively Zs±1, Zr±1, now each harmonic (in addition to slot ripples), which weakens and eliminated, arrives fairly small degree.
For Zs±1Secondary slot ripples：
For Zr±1Secondary slot ripples：
The stator core 21 and rotor core 11 of the utility model rotary transformer use the iron core of straight channel type, and stator
Slot number Zs, rotor slot number Zr meet Zs ≠ Zr, and Zs ≠ 2Zr groove coordinates so that stator winding 22 and rotor windings 12 are being adopted
In the case of with sinusoidal phase winding R2R4, slot ripples caused by primary side winding, vice-side winding does not absorb；And vice-side winding can be inhaled
The slot ripples of receipts, primary side winding are not produced, and fairly small degree is arrived so as to weaken or eliminate slot ripples.The utility model rotates
The stator core 11 and rotor core 11 of transformer use the iron core of straight channel type, so as to realize stator winding 22 and rotor windings
12 is automatic offline, improves the productivity ratio of rotary transformer, further, since under the utility model rotary transformer can be realized automatically
Line, without manually offline, so as to reduce the production cost of rotary transformer, artificial productivity is liberated.
It should be noted that due in rotary transformer, groove and tooth are provided with stator core 21, rotor core 22, it is fixed
The conductor of sub- winding 22 and rotor windings 12 can not possibly be continuously distributed along air gap surface.Therefore in magnetic potential curve, in addition to fundamental wave
It also there are higher hamonic wave.
Referring to figs. 1 to Fig. 4, further, the rotor slot number ZrFor 16, the number of stator slots is ZsFor 12.
In the present embodiment, rotor/stator using 12/16 groove coordinate, now most low order slot ripples be 11 times, 13 times, 15 times,
17 times, stator and rotor use straight trough, and when effective turn is minimum, error is maximum, respectively Δ θ 11=0.76 ', Δ θ 13=
0.24 ', Δ θ 15=0 ', Δ θ 17=0.85 ', therefore stator winding 22, rotor windings 12 coordinate when using Sine distribution winding,
Tooth-harmonic emf is substantially zeroed, and the present embodiment is coordinated by rotor core 11 and 21 rational groove of stator core, at the same stator around
Group 22 and rotor windings 12 use Sine distribution winding, and solving can not be given by means of the distribution of winding in the prior art
The problem of eliminating or weakening higher hamonic wave.
In another embodiment, rotor/stator using can also use 8/12 groove coordinate, now most low order slot ripples be 7 times,
9 times, 11 times, 13 times, stator and rotor use straight trough, and when effective turn is minimum, error is maximum, respectively Δ θ 7=2.5 ', Δ θ 9
=0 ', Δ θ 11=0.7 ', Δ θ 13=0.5 ', when now similarly stator and rotor winding 12 uses Sine distribution winding, slot ripples
Potential is substantially zeroed.
It is understood that in above-described embodiment, only enumerate and illustrate that the extreme groove of two groups of rotor/stators coordinates, now can
Enough meet that tooth-harmonic emf is substantially zeroed, while in other embodiments, number of stator slots Zs and rotor slot number ZrMeet Zs≠Zr,
Zs≠2ZrGroove coordinate, equally can be achieved on, be not limited herein.
Referring to figs. 1 to Fig. 4, in a preferred embodiment, the rotor also includes rotor windings 12, the rotor windings 12
With short distance Sine distribution rule in the straight trough of the rotor core 11, the winding pitch y of the rotor windings 12rFor 6.
In the present embodiment, rotor windings 12 are embedded at the rotor with short distance Sine distribution rule as shown in Figure 3
In the straight trough of iron core 11, the winding pitch y of the rotor windings 12rFor 6, each tooth number of turn of two phase windings of rotor windings 12 is pressed
Sinusoidal rule is modulated, and so as to ensure the sine of winding, does not influence the electric precision of product, while realize that stator is automatically offline.
Certainly in other embodiments, the pitch y of rotor windings 12rIt can also be other numerical value, not be limited herein.
Further, the rotor windings 12 include sinusoidal phase winding R2R4 and cosine phase winding R1R3, the rotor around
Each slot coil number of turn N of sinusoidal phase winding R2R4 of group 12rsiAccording to the first preset formulaDistribution
Set；Each slot coil number of turn N of cosine phase winding R1R3 of the rotor windings 12rciAccording to the second preset formulaDistribution is set.In first preset formula and the second preset formula, i is the sequence number (#) of groove,
NrmThe maximum number of turn for being rotor windings in groove.
Further, conductor numbers of sinusoidal the phase winding R2R4 and cosine phase winding R1R3 of the rotor windings 12 in each groove
It is divided into upper and lower two layers；Wherein,
Sinusoidal mutually each groove upper strata element coil number of turn is according to the 3rd preset formula Set；Mutually each groove upper strata element coil number of turn of cosine is according to the 4th preset formula Final realize is set to be layered once successful end conductor Sine distribution.3rd preset formula and the 4th pre-
If in formula, i be groove sequence number (#), WrmFor rotor windings on tooth (end) the maximum number of turn.
It is understood that the sinusoidal Xiang Ge grooves lower floor element coil number of turn can be according to the first formula and the 3rd preset formula
Difference set；And the cosine Xiang Ge grooves lower floor element coil number of turn can be set according to the difference of the second formula and the 4th preset formula
Put.
As shown in Figure 3, accompanying drawing 3 is sinusoidal phase winding R2R4 coils and cosine the phase winding R1R3 coils of rotor in each groove
Interior, and the specific expanded view of each coil turn, coil turn in each groove and the coil turn in each groove are all in accordance with the
One preset formula to the 4th preset formula carries out distribution setting.In order to better illustrate the present embodiment, sinusoidal R2R4 pairs of phase winding
Should be in the active coil number of turn in each groove and each coil turn, specifically respectively with 8#Illustrated exemplified by groove, specifically, 8#
It is -17 circles that the number of turn is corresponded in groove, corresponding 8#The upper strata side number of turn in groove is -6 circles, and lower floor's side number of turn is -11 circles.Cosine phase winding
It is specific respectively with 8 that R1R3 corresponds to coil turn on each tooth number, the active coil number of turn corresponding to each groove number#Said exemplified by groove
It is bright, 8#It is -11 circles that the number of turn is corresponded in groove, corresponding 8#The upper strata side number of turn in groove is -9 circles, and lower floor's side number of turn is -2 circles.This implementation
In example, when rotor windings 12 are with straight trough of the short distance Sine distribution rule embedded at the rotor core 11, first from rotor slot
1#Groove starts coiling cosine phase R1R3 coils, wherein, 1#~8#Groove is just around 9#~16#Groove is rewound.Then again from the 5 of rotor slot#
Groove starts coiling sine phase R2R4 coils, wherein, 5#~12#Groove is just around 13#~4#Groove is rewound.Because rotor has in practical application
Voluntarily short circuit is as compensative winding for one phase winding, and two-phase winding parameter is without full symmetric, can not therefore when automatic offline
Commutation coiling is carried out, as shown in Figure 3, dotted line represents the lower floor side (first around coil) of winding in figure, and solid line represents winding
Upper strata side (after around coil).
Referring to figs. 1 to Fig. 4, in a preferred embodiment, the stator also includes stator winding 22, the stator winding 22
With tooth pole fractional-slot Sine distribution rule in the straight trough of the stator core 11, the winding pitch of the stator winding 22
ysFor 1.
In the present embodiment, stator winding 22 is embedded at institute with tooth pole fractional-slot Sine distribution rule as shown in Figure 4
In the straight trough for stating rotor core 11, the winding pitch y of the stator winding 22sFor 1, the phase winding of sine and cosine two of rotor windings 12
Each tooth number of turn presses sinusoidal rule coiling, so as to ensure that the sine of the phase winding of sine and cosine two, ensure that brushless rotation transformation
The electric precision of device, while realize that stator is automatically offline.Certainly in other embodiments, the pitch y of stator winding 22sCan be with
For other numerical value, it is not limited herein.
Further, the stator winding 22 includes sinusoidal phase winding S2S4 and cosine phase winding S1S3, the rotor around
Each slot coil number of turn N of sinusoidal phase winding S2S4 of group 12ssiAccording to the 5th preset formula Set；
Each slot coil number of turn N of cosine phase winding S1S3 of the stator windingsciAccording to the 6th preset formulaSet.In 5th preset formula and the 6th preset formula, i be groove sequence number (#), NsmIt is fixed
Coil turn of the sub- winding in groove.
Further, the coil turn of stator winding 22 is divided on each tooth according to end coil number of turn sine method
Match somebody with somebody；Wherein,
Sinusoidal each tooth coil turn of phase winding S2S4 coil turns is debugged according to the 7th preset formula Set；Each tooth coil turn W of cosine phase winding S1S3sciAccording to the 8th preset formulaSet.In 7th preset formula and the 8th preset formula, i is the sequence number (#) of groove,
WsmThe coil turn for being stator winding on tooth.
As shown in Figure 4, accompanying drawing 4 for stator sinusoidal phase winding R2R4 coils and cosine phase winding coil in each groove with
And the specific expanded view on each tooth, coil turn on each tooth and the coil turn in each groove all in accordance with the 5th preset formula extremely
8th preset formula carries out distribution setting.In order to better illustrate the present embodiment, sinusoidal phase winding S2S4 is corresponded on each tooth number
The active coil number of turn in coil turn, each groove, specifically respectively with 8#Tooth and 8#Illustrated exemplified by groove, specific 8#Corresponded on tooth
68 circles, 8#It is -25 circles that effective coil turn is corresponded in groove.Cosine phase winding S1S3 corresponds to coil turn, each groove on each tooth number
The corresponding active coil number of turn is specific respectively with 9 in number#Tooth and 9#Illustrated exemplified by groove, 9#On tooth corresponding coil turn for-
25 circles, 9#The corresponding active coil number of turn is 93 circles in groove.
In the present embodiment, in stator winding 22 with tooth pole fractional-slot Sine distribution rule embedded at the stator core 21
When in straight trough, first from the 1 of stator slot#Tooth starts the cosine phase winding S1S3 phases 1 of coiling stator winding 22#~6#The positive coil of tooth, so
Afterwards again from the 1 of stator slot#Tooth, and start to turn around the sinusoidal whole coils of phase winding S2S4 phases, finally turn around cosine phase S1S3 phases 7#~
12#The anti-coil of tooth, the present embodiment pass through the cosine phase winding S1S3 to stator winding 22 and sinusoidal phase winding S2S4 commutations priority
Winding corresponding to coiling, commutation joint such as accompanying drawing four indicate, so as to ensure that electromagnetism pair of the phase winding of sine and cosine two in space
Title property, so that the phase parameter of sine and cosine two is symmetrical, and then ensure that the electric precision of brushless resovler.
The utility model also proposes a kind of brushless resovler.
Reference picture 5, the brushless resovler include toroidal transformer 100 and rotary transformer 200 as described above,
The stator winding HR1HR3 of the toroidal transformer is used for incoming transport electricity, and the rotor windings of the toroidal transformer (do not mark by figure
Show) it is electrically connected with rotor windings of the rotary transformer, the head end of another phase rotor windings of the rotary transformer
With the mutual short circuit in end.
In the present embodiment, common brush and slip ring are replaced using " toroidal transformer " of electromagnetic type, realize contactless encourage
The function of magnetic.One rotor windings of the rotor windings (figure does not indicate) and rotary transformer of toroidal transformer are joined directly together.Work as ring
When the stator winding HR1HR3 of shape transformer is passed through alternating current, induced potential is just produced in the rotor windings of toroidal transformer,
Its size is unrelated with angle of rotor, and this potential is applied on a phase rotor windings of rotary transformer, as rotary transformer
Excitation voltage.Another phase rotor windings of rotary transformer rotor voluntarily short circuit, so as to realize that accuracy compensation acts on, rotary transformer
Sinusoidal phase winding S2S4 and cosine phase winding S1S3 two-phase the output winding of stator are induced with angle of rotor into sine and cosine rule
The voltage signal of distribution, so as to realize the rotating shaft angular travel of rotating object and angular velocity measurement.Specifically output voltage reference side
Formula is shown in that formula (1) and (2) are understood.
US1S3=KUR1R3cosα……………………………………(1)
US2S4=KUR1R3sinα……………………………………(2)
In formula (1) and (2), US2S4For the voltage at the sinusoidal phase winding S2S4 both ends of stator in rotary transformer；US1S3For
The voltage at the cosine phase winding S1S3 both ends of stator in rotary transformer 200；
UR1R3Become the stator winding HR1HR3 of transformer 100 voltage for annular；K is transformation ratio；α is rotary transformer rotor
The mechanical angle rotated forward from the electrical zero position of a motor.
Preferred embodiment of the present utility model is the foregoing is only, not thereby limits the scope of the claims of the present utility model,
Every equivalent structure under utility model of the present utility model design, made using the utility model specification and accompanying drawing content
Conversion, or directly/be used in other related technical areas indirectly and be included in scope of patent protection of the present utility model.
Claims (9)
1. a kind of rotary transformer, it is characterised in that the rotary transformer includes：
Rotor, the rotor include rotor core, and the rotor core is straight channel type iron core, and groove profile is circular trough；
Stator, the stator include stator core, and the stator core is straight channel type iron core, and groove profile is the trapezoidal of parallel teeth
Groove；
The rotor slot number Z of the rotor corerAnd the number of stator slots Z of the stator coresMeet Zs≠Zr, Zs≠2Zr。
2. rotary transformer as claimed in claim 1, it is characterised in that the rotor slot number ZrFor 16, the number of stator slots
For ZsFor 12.
3. rotary transformer as claimed in claim 1, it is characterised in that the rotor also includes rotor windings, the rotor
Winding is embedded at short distance Sine distribution rule in the straight trough of the rotor core, the winding pitch y of the rotor windingsrFor 6.
4. rotary transformer as claimed in claim 3, it is characterised in that the rotor windings include sinusoidal phase winding and cosine phase
Winding, each slot coil number of turn N of sinusoidal phase winding of the rotor windingsrciAccording to the first preset formula
Set；Each slot coil number of turn N of cosine phase winding of the rotor windingsrciAccording to the second preset formula
Set.
5. rotary transformer as claimed in claim 4, it is characterised in that the sine-phase coil of the rotor windings is in each groove
Upper and lower two layers, the upper coil number of turn of the sinusoidal phase winding is according to the 3rd preset formula
Set；
The cosine-phase coil of the rotor windings is upper and lower two layers in each groove, the upper coil number of turn of the cosine phase winding
According to the 4th preset formulaSet.
6. rotary transformer as claimed in claim 1, it is characterised in that the stator also includes stator winding, the stator
Winding is embedded at tooth pole fractional-slot Sine distribution rule in the straight trough of the stator core, the winding pitch of the stator winding
ysFor 1.
7. rotary transformer as claimed in claim 6, it is characterised in that the stator winding includes sinusoidal phase winding and cosine phase
Winding, each slot coil number of turn N of sinusoidal phase winding of the stator windingrciAccording to the 5th preset formula
Set；Each slot coil number of turn N of cosine phase winding of the stator windingsciAccording to the 6th preset formula
Set.
8. rotary transformer as claimed in claim 7, it is characterised in that the sine-phase coil of the stator winding is on each tooth
Coil turn debugged according to the 7th preset formula Set；The stator
Coil turn of the cosine-phase coil of winding on each tooth is according to the 8th preset formula
Set.
9. a kind of brushless resovler, it is characterised in that the brushless resovler includes toroidal transformer and such as right
It is required that the rotary transformer described in 1 to 8 any one, the stator winding of the toroidal transformer is used for incoming transport electricity, described
One rotor windings of the rotor windings of toroidal transformer and the rotary transformer are electrically connected, the rotary transformer it is another
The mutual short circuit of the head end of phase rotor windings and end.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720337343.6U CN206673811U (en) | 2017-03-31 | 2017-03-31 | Rotary transformer and brushless resovler |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720337343.6U CN206673811U (en) | 2017-03-31 | 2017-03-31 | Rotary transformer and brushless resovler |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106712447A (en) * | 2017-03-31 | 2017-05-24 | 深圳市德西机电有限责任公司 | Rotary transformer and brushless rotary transformer |
| CN112737164A (en) * | 2020-12-24 | 2021-04-30 | 中国航空工业集团公司金城南京机电液压工程研究中心 | Rotary transformer and wire embedding method |
| CN112865346A (en) * | 2021-01-20 | 2021-05-28 | 深圳市康弘环保技术有限公司 | AC motor capable of reducing electromagnetic sound during operation |
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2017
- 2017-03-31 CN CN201720337343.6U patent/CN206673811U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106712447A (en) * | 2017-03-31 | 2017-05-24 | 深圳市德西机电有限责任公司 | Rotary transformer and brushless rotary transformer |
| CN106712447B (en) * | 2017-03-31 | 2023-08-08 | 深圳市德西机电有限责任公司 | Resolver and brushless resolver |
| CN112737164A (en) * | 2020-12-24 | 2021-04-30 | 中国航空工业集团公司金城南京机电液压工程研究中心 | Rotary transformer and wire embedding method |
| CN112737164B (en) * | 2020-12-24 | 2024-03-29 | 中国航空工业集团公司金城南京机电液压工程研究中心 | Rotary transformer and coil inserting method |
| CN112865346A (en) * | 2021-01-20 | 2021-05-28 | 深圳市康弘环保技术有限公司 | AC motor capable of reducing electromagnetic sound during operation |
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