CN209103931U - A kind of rotary transformer of uniformly distributed signal winding - Google Patents
A kind of rotary transformer of uniformly distributed signal winding Download PDFInfo
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- CN209103931U CN209103931U CN201822198106.3U CN201822198106U CN209103931U CN 209103931 U CN209103931 U CN 209103931U CN 201822198106 U CN201822198106 U CN 201822198106U CN 209103931 U CN209103931 U CN 209103931U
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Abstract
The utility model provides a kind of rotary transformer of uniformly distributed signal winding, including stator and rotor, and the number of pole-pairs of the rotary transformer is 2, is provided with 8 stator slots on the stator, each pair of extremely lower 4 stator slots respectively constitute orthogonal two phase winding；It is provided with primary side excitation winding in 8 stator slots and secondary side exports winding, the primary side excitation winding is set to all stator slots, and the pair side output winding includes sinusoidal phase winding and cosine phase winding, is alternately disposed at all stator slots.For the utility model with following the utility model has the advantages that 1, element of winding number greatly reduces, big degree reduces processing capacity, reduces processing cost；2, three windings are all equal-turn type winding, thus coiling is very convenient fast, it is error-prone not allow；3 rotary transformers more with slot number general at present are compared, and for 2 pairs of poles, the winding pitch of 8 slots increases, and the thickness of iron core can be reduced in this way, to reduce material cost.
Description
Technical field
This patent is related to rotary transformer technology field, and in particular, to a kind of rotary transformer of uniformly distributed signal winding.
Background technique
Due to the excellent performance (high reliability, high-performance, moderate cost) of rotary transformer, as under many applications
The position of first choice, motion sensor.Such as in the servo-system of high reliability, the power drive system of electric car.With skill
The progress of art, no matter these systems are proposed with higher harsher requirement in performance or in price.It is right in this way
In also proposing same requirement accordingly as indispensable sensor.It (or is mentioned it is required that the technical performance of sensor is constant
It is high), and want thinner and lighter in structure, to meet the promotion of system.
Compare a real example, is exactly the rotation for BSG (Belt Driven Starter Generator) system
Change the magnetoresistance transformer in depressor.BSG system is for a light hybrid technology in automobile, in automobile
After this system, producible oil-saving effect is about (5~10) %, considerable.This technology, by expert one
It causes good, it is possible to the status of traditional power automotive energy-saving emission-reducing mainstream technology is occupied within the following significant period of time.Cause
This, all promotes in research and development energetically both at home and abroad.But the cost of BSG technology is very low, is existing passenger car under the premise of mass production
1,000 yuan or so of cost need to be increased by installing BSG additional.Since entire cost is fallen too low, therefore it is required that matched position sensing
Device --- rotary transformer, it is also necessary to accordingly reduce cost.In this case, it is desirable that research and development cost performance it is high it is novel, specially
, therewith the rotary transformer that matches be very much urgent.
From the technical point of view, performance and cost often mutual restrict and contradiction.In setting for general traditional rotary transformer
It counts in principle, number of stator slots cannot be very little, because to consider the ability of harmonic carcellation and the derivation of a variety of numbers of poles.In this way, general
Slot number can be set to the combination of two identical odd numbers, such as: 10 (5,5), 14 (7,7) etc., stator 1 as shown in Figure 1 is designed as
14 slots.Sinusoidal pattern winding can be used in this way, so as to preferably reduced harmonic, improve precision.When slot number is more, although eliminating humorous
Wave energy power is strong, but element of winding number increases, winding configuration is complicated, each element the number of turns differs, and manufactures processing difficulties, complexity.Separately
Outside, system requires the impedance of rotary transformer, principle be input impedance cannot too small, output impedance cannot be excessive.In order to
Realize this principle, it is necessary to assure iron core has comparable length, and core length is too short, and impedance is just not achieved.
Utility model content
For the defects in the prior art, the purpose of the utility model is to provide a kind of rotation transformations of uniformly distributed signal winding
Device.
It is described according to a kind of rotary transformer of uniformly distributed signal winding provided by the utility model, including stator and rotor
The number of pole-pairs of rotary transformer is 2, is provided with 8 stator slots on the stator, each pair of extremely lower 4 stator slots respectively constitute just
Hand over two phase windings；
It is provided with primary side excitation winding in 8 stator slots and secondary side exports winding, the primary side excitation winding is set to institute
There is stator slot, the pair side output winding includes sinusoidal phase winding and cosine phase winding, is alternately disposed at 8 stator slots.
Preferably, two sides of the rotor, to intermediate recess, the shape of the rotor meets sinusoidal rule.
Preferably, the number of elements of the primary side excitation winding is 8, the number of elements of the pair side output winding is 8
It is a, wherein the number of elements of the sine phase winding and the cosine phase winding is respectively 4.
Preferably, the equal turn numbers of each primary side excitation winding, the equal turn numbers of each secondary side output winding.
Compared with prior art, the utility model have it is following the utility model has the advantages that
1, element of winding number greatly reduces, and big degree reduces processing capacity, reduces processing cost；
2, three sets of windings are all equal-turn type winding, thus coiling is very convenient fast, it is error-prone not allow；
3, the winding pitch of 8 slots is opposite increases, and the thickness of iron core can be reduced in this way, to reduce material cost.
Detailed description of the invention
Upon reading the detailed description of non-limiting embodiments with reference to the following drawings, other spies of the utility model
Sign, objects and advantages will become more apparent upon:
Fig. 1 is the structural schematic diagram of conventional 14 slot stators；
Fig. 2 is the structural schematic diagram of stator provided by the utility model；
Fig. 3 is the structural schematic diagram of convention rotor；
Fig. 4 is the structural schematic diagram of rotor provided by the utility model；
Fig. 5 is the front view of conventional rotary transformer；
Fig. 6 is the front view of transformation depressor provided by the utility model；
Fig. 7 is the side view of conventional rotary transformer；
Fig. 8 is the side view of transformation depressor provided by the utility model.
Specific embodiment
The utility model is described in detail combined with specific embodiments below.Following embodiment will be helpful to this field
Technical staff further understands the utility model, but does not limit the utility model in any form.It should be pointed out that ability
For the those of ordinary skill in domain, without departing from the concept of the premise utility, several changes and improvements can also be made.
These are all within the protection scope of the present invention.
BSG provided by the utility model uses ultrathin high performance-price ratio rotary transformer compared with prior art, equally includes
Stator and rotor, however unlike:
Number of pole-pairs used by the rotary transformer of the uniformly distributed signal winding of the utility model is 2, as shown in Fig. 2, in pole
Under the premise of logarithm is 2,101 quantity of stator slot of stator 1 is 8, and under the selection of such slot number, winding configuration is very simple.
8 elements of winding of primary side excitation winding, secondary side output winding every 4 mutually each (i.e. sinusoidal phase winding and cosine phase winding each 4
The element of winding), the total element of winding number of three sets of windings only has 16, the equal turn numbers of each element of winding.8 excitation windings point
Qian Zhi not be in 8 stator slots, sinusoidal phase winding and cosine phase winding are respectively alternately in 4 stator slots, i.e., and usually
The every slot of magnetoresistance transformer in have 3 sets of windings different, only 2 sets of windings in the every slot of stator described in the utility model.
The 14 every phase of slot stator of routine shown in FIG. 1 in contrast is that (excitation, sine, cosine all must be 14 for 14 elements of winding
The element of winding), total element of winding number is 42, and the number of turns of secondary side output winding must be distributed by sinusoidal rule, each winding
Element the number of turns is different.
The winding configuration of 1 two kinds of slot numbers of table compares
It is compared from the winding configuration of 1 two kinds of slot numbers of table, it will thus be seen that
1, when number of pole-pairs is 2, element number when number of stator slots is 8 greatly reduces, and processing capacity greatly reduces；
2, when number of stator slots is 8, winding configuration is simple, and three sets of windings (excitation, sine, cosine) are all equal-turn type windings,
Thus coiling is very convenient fast, it is error-prone not allow；
3, in the case where 2 pairs of poles, 8 stator slots, Distributed Winding cannot be constituted.The ability decline of harmonic carcellation in this way,
Therefore, as shown in figure 4, two sides of the rotor 2 of the utility model are to intermediate recess, spill meets the rotor shapes of SIN function,
Make optimization design by the shape to rotor, so that fundametal compoment is as big as possible in magnetic field, and reduces harmonic component as far as possible, from
And substitute convention rotor shown in Fig. 3；
4, after the stator 1 using 8 slots, from rotary transformer design theory it is found that the winding pitch of 8 slots increases,
The thickness of iron core can be reduced in this way.As shown in Figure 5, Figure 7, the iron core of usual Small-size rotary transformer (by taking 14 slots as an example)
Thickness is taken as 7~8mm, and as the iron core thickness of Fig. 6, the utility model shown in Fig. 8 can be reduced to 4mm.
The rotary transformer of uniformly distributed signal winding provided by the utility model has enough precision, and performance is fully met
Demand, overall structure is simple, processing easy to produce.
Specific embodiment of the utility model is described above.It is to be appreciated that the utility model not office
It is limited to above-mentioned particular implementation, those skilled in the art can make a variety of changes or modify within the scope of the claims,
This has no effect on the substantive content of the utility model.In the absence of conflict, the spy in embodiments herein and embodiment
Sign can be arbitrarily combined with each other.
Claims (4)
1. a kind of rotary transformer of uniformly distributed signal winding, including stator and rotor, which is characterized in that the rotary transformer
Number of pole-pairs is 2, and 8 stator slots are provided on the stator, and each pair of extremely lower 4 stator slots respectively constitute orthogonal two phase winding；
It is provided with primary side excitation winding in 8 stator slots and secondary side exports winding, it is all fixed that the primary side excitation winding is set to
Pilot trench, the pair side output winding includes sinusoidal phase winding and cosine phase winding, is alternately disposed at 8 stator slots.
2. the rotary transformer of uniformly distributed signal winding according to claim 1, which is characterized in that two sides of the rotor to
The shape of intermediate recess, the rotor meets sinusoidal rule.
3. the rotary transformer of uniformly distributed signal winding according to claim 1, which is characterized in that the primary side excitation winding
Number of elements be 8, the number of elements of the pair side output winding is 8, wherein the sine phase winding and described remaining
The number of elements of string phase winding is respectively 4.
4. the rotary transformer of uniformly distributed signal winding according to claim 1, which is characterized in that each primary side excitation
The equal turn numbers of winding, the equal turn numbers of each secondary side output winding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822198106.3U CN209103931U (en) | 2018-12-25 | 2018-12-25 | A kind of rotary transformer of uniformly distributed signal winding |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822198106.3U CN209103931U (en) | 2018-12-25 | 2018-12-25 | A kind of rotary transformer of uniformly distributed signal winding |
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| Publication Number | Publication Date |
|---|---|
| CN209103931U true CN209103931U (en) | 2019-07-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822198106.3U Active CN209103931U (en) | 2018-12-25 | 2018-12-25 | A kind of rotary transformer of uniformly distributed signal winding |
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| CN (1) | CN209103931U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109473258A (en) * | 2018-12-25 | 2019-03-15 | 上海赢双电机有限公司 | A kind of thin rotary transformer |
| CN114864271A (en) * | 2022-05-24 | 2022-08-05 | 上海赢双电机有限公司 | Coil winding method of rotary transformer |
-
2018
- 2018-12-25 CN CN201822198106.3U patent/CN209103931U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109473258A (en) * | 2018-12-25 | 2019-03-15 | 上海赢双电机有限公司 | A kind of thin rotary transformer |
| CN114864271A (en) * | 2022-05-24 | 2022-08-05 | 上海赢双电机有限公司 | Coil winding method of rotary transformer |
| CN114864271B (en) * | 2022-05-24 | 2024-04-30 | 上海赢双电机科技股份有限公司 | Coil winding method of rotary transformer |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: 201100 Building 1, 2 and 3, No. 1230, Beiwu Road, Minhang District, Shanghai Patentee after: Shanghai Yingshuang Motor Technology Co.,Ltd. Address before: 201100 area a, 2 / F, 3 / F, 3 / F, building 1, No. 639, Guangzhong Road, Minhang District, Shanghai Patentee before: SHANGHAI WIN DOUBLE ELECTRIC Co.,Ltd. |
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| CP03 | Change of name, title or address |