CN205016367U - Decide vernier resolver that rotor axial length is different - Google Patents
Decide vernier resolver that rotor axial length is different Download PDFInfo
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- CN205016367U CN205016367U CN201520777043.0U CN201520777043U CN205016367U CN 205016367 U CN205016367 U CN 205016367U CN 201520777043 U CN201520777043 U CN 201520777043U CN 205016367 U CN205016367 U CN 205016367U
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Abstract
The utility model relates to the technical field of transformers, especially, relate to a vernier resolver. A decide vernier resolver that rotor axial length is different, includes stator and rotor, stator core length is different with rotor core length. Since the technical scheme is used, the utility model discloses an electrical resolver allowwing except that being rotary motion, but in certain extent is axial motion simultaneously, and its parameter and performance remained is unchangeable.
Description
Technical field
The utility model relates to rotary transformer technology field, particularly relates to a kind of magnetoresistance transformer.
Background technology
In general rotary motion, moving component, under the support of bearing, only rotates.Relative position axial between stationary part and rotating part does not do and changes.But under some special occasions, except requiring that moving component rotates, also need to axially move.This just requires the speed that matches with it and position sensing element, also must have such function.Resolver is the transducer being used in angle position when rotating and rotary speed.Structure and the principle of tradition resolver only adapt to rotate, and can not allow to move axially simultaneously, otherwise parameter and performance can change, degenerate, and cannot play due effect.
The axial dimension of stators and rotators of tradition resolver, be all be generally designed to equal, such design can guaranteed performance, can space be saved again.But when there being axial dipole field, flux coupled situation changes, and electromagnetic parameter and performance all can change, and causes and is difficult to determine electromagnetic parameter.It is equal as much as possible that the axial dimension of stators and rotators does by therefore traditional resolver.
But when needing the occasion axially moved, traditional resolver is obvious and inapplicable.
Utility model content
The purpose of this utility model is, provides the magnetoresistance transformer that a kind of rotor axial length is different, solves above technical problem.
The technical problem that the utility model solves can realize by the following technical solutions:
The magnetoresistance transformer that rotor axial length is different, comprises stators and rotators, and described stator is different with the axial length of described rotor, and namely described stator core length is different with described rotor core length;
The relation formula of described stator and described rotor is as follows:
L
C＝L
D+L
X+(2～4)δ(1)
Wherein, L
cfor a square iron core length longer in stator or rotor;
L
dfor a square iron core length shorter in stator or rotor;
L
xfor the ultimate range of stators and rotators when axially moving;
δ is the gas length between stators and rotators.
In all axial motions, require that a longer square iron core must cover a shorter square iron core completely, the utility model adopts aforesaid way determination core length, make when there being axial dipole field, the area that stators and rotators covers each other still can remain unchanged, solve problem in the calculating brought due to axial dipole field simultaneously, determine suitable, correct physical dimension, realize that performance is constant, parameter constant.
Adopt the resolver of mentioned above principle, when using as angle, velocity transducer, allow except rotating, can axially move within the specific limits simultaneously, and its parameter and property retention constant.
But preferably adopt described rotor core length to be longer than described stator core length.
Beneficial effect: owing to have employed technique scheme, the resolver of the utility model design, in permission except rotating, can axially move within the specific limits simultaneously, and its parameter and property retention constant.
Accompanying drawing explanation
Fig. 1 is a kind of internal structure schematic diagram of the present utility model;
Fig. 2 is the end view of Fig. 1;
Fig. 3 is a) structural representation of long rotor-type;
Fig. 3 b) be the structural representation of long stator type;
Fig. 4 a) for stator-rotor iron core longitudinal center line consistent time position view;
Fig. 4 b) be position view when rotor axial is moved to the left maximum;
Fig. 4 c) be position view when rotor axial moves right maximum.
Embodiment
The technological means, the creation characteristic that realize in order to the utility model, reach object and effect is easy to understand, below in conjunction with concrete diagram, set forth the utility model further.
Referring to figs. 1 through Fig. 4, the magnetoresistance transformer that a kind of rotor axial length is different, comprise stator 1 and rotor 2, as shown in Figure 3, Fig. 3 rotor core length a) is longer than stator core length, Fig. 3 b) rotor core length be shorter than stator core length, length can be selected as the case may be, but preferably adopt rotor core length to be longer than the scheme of stator core length.
In Fig. 3, Ls is stator core length, L
rfor rotor core length, δ is the gas length between rotor.As shown in Figure 4, rotor core length is longer than stator core length, situation when rotor axially moves, and Lx is the ultimate range of axial motion.Fig. 4 a) be rotor center line consistent time situation, wherein stator is as a shorter side, core length L
d, rotor is as a longer square iron core length L
c.Fig. 4 b) be the position (Lx/2) of rotor when being moved to the left maximum, Fig. 4 c) be the position (Lx/2) of rotor when moving right maximum, Lx is the ultimate range of axial motion.
Stator 1 of the present utility model is different with the axial length of rotor 2, and namely stator core length is different with rotor core length.The relation formula of stator 1 and rotor 2 is as follows:
L
C＝L
D+L
X+(2～4)δ(1)
Wherein, L
cfor a square iron core length longer in stator or rotor
L
dfor a square iron core length shorter in stator or rotor;
L
xfor the ultimate range of stators and rotators when axially moving;
δ is the gas length between stators and rotators.
Embodiment one:
One rotates system, simultaneously will in the motion being axially 30mm, needs one the angle signal of accurate sensing rotation can do again the magnetoresistance transformer of axial 30mm motion.The control motor of kinematic system is 4 to pole, so the magnetoresistance transformer designed based on the present invention is also designed to 4 to pole.
Determined by Electromagnetic Design, stator core axial length L
dget 5mm, air gap delta is taken as 0.65mm, L
xfor 30mm.Like this, rotor core length L
c:
L
C＝5+30+4×0.65＝37.6(mm)
More than show and describe general principle of the present utility model and principal character and advantage.The technical staff of the industry should understand the utility model not by the restriction of above-mentioned using method; what describe in above-mentioned using method and specification just says principle of the present utility model; under the prerequisite not departing from the utility model spirit and scope, the utility model also has various changes and modifications, and these changes and improvements all fall into the claimed scope of the utility model and defined by appending claims and equivalent thereof.
Claims (2)
1. the magnetoresistance transformer that rotor axial length is different, comprises stators and rotators, it is characterized in that, described stator is different with the axial length of described rotor, and namely described stator core length is different with described rotor core length;
The relation formula of described stator and described rotor is as follows:
L
C＝L
D+L
X+(2～4)δ(1)
Wherein, L
cfor a square iron core length longer in stator or rotor;
L
dfor a square iron core length shorter in stator or rotor;
L
xfor the ultimate range of stators and rotators when axially moving;
δ is the gas length between stators and rotators.
2. the magnetoresistance transformer that a kind of rotor axial length according to claim 1 is different, is characterized in that: described rotor core length is longer than described stator core length.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520777043.0U CN205016367U (en) | 2015-10-08 | 2015-10-08 | Decide vernier resolver that rotor axial length is different |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520777043.0U CN205016367U (en) | 2015-10-08 | 2015-10-08 | Decide vernier resolver that rotor axial length is different |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205016367U true CN205016367U (en) | 2016-02-03 |
Family
ID=55214959
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520777043.0U Active CN205016367U (en) | 2015-10-08 | 2015-10-08 | Decide vernier resolver that rotor axial length is different |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205016367U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105304300A (en) * | 2015-10-08 | 2016-02-03 | 上海赢双电机有限公司 | Variable reluctance resolver capable of axial movement |
-
2015
- 2015-10-08 CN CN201520777043.0U patent/CN205016367U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105304300A (en) * | 2015-10-08 | 2016-02-03 | 上海赢双电机有限公司 | Variable reluctance resolver capable of axial movement |
| CN105304300B (en) * | 2015-10-08 | 2018-01-16 | 上海赢双电机有限公司 | The magnetoresistance transformer being axially movable |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address | ||
| 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 Room 6100, 6th Floor, Comprehensive Business Building, No. 951, Jianchuan Road, Minhang District, Shanghai Patentee before: SHANGHAI WIN DOUBLE ELECTRIC Co.,Ltd. |