CN109194085A - A kind of big range permanent magnetism torquer - Google Patents
A kind of big range permanent magnetism torquer Download PDFInfo
- Publication number
- CN109194085A CN109194085A CN201811181508.0A CN201811181508A CN109194085A CN 109194085 A CN109194085 A CN 109194085A CN 201811181508 A CN201811181508 A CN 201811181508A CN 109194085 A CN109194085 A CN 109194085A
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- China
- Prior art keywords
- magnet steel
- annular permanent
- annular
- permanent
- central support
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K33/00—Motors with reciprocating, oscillating or vibrating magnet, armature or coil system
- H02K33/18—Motors with reciprocating, oscillating or vibrating magnet, armature or coil system with coil systems moving upon intermittent or reversed energisation thereof by interaction with a fixed field system, e.g. permanent magnets
Abstract
The invention discloses a kind of big range permanent magnetism torquers, belong to electromagnetic component technical field.The present invention includes magnet steel pedestal, outer press ring, exterior wing annular permanent-magnet steel, interior wing annular permanent magnet steel, inner pressure ring, central support posts, coil rack and coil；Interior wing annular permanent magnet steel and exterior wing annular permanent-magnet steel respectively constitute annular, coaxial with ring structure magnet steel pedestal, and are embedded in the two sides of annular convex platform on magnet steel pedestal；It is supported inside interior wing annular permanent magnet steel by central support posts, top is fixed by inner pressure ring；It is fixed outside exterior wing annular permanent-magnet steel by outer press ring；Coil is wrapped in composition loop construction on coil rack and hangs on central support posts, and is embedded among air gap.For the present invention using group hinge annular magnet design, air gap effective coverage is long and the Magnetic Induction Density Distribution linearity is good, greatly increases the effective travel of magnetic torquer, reduces the power consumption of magnetic torquer, reduces the temperature drift of air gap working region.
Description
Technical field
The invention belongs to electromagnetic component technical fields, are related to a kind of big range permanent magnetism torquer of low-power consumption.The torquer with
The characteristics of permanent-magnet steel does excitatory magnetic field source, and stress moves in magnetic field after coil is powered, the structure is: using group hinge ring
Shape magnet arrangement, magnetic structure can generate strong and uniform Magnetic Induction Density Distribution in longer region, magnetic torque have been significantly greatly increased
The effective travel of device.
Background technique
In some high-accuracy inertia type instruments, such as flexure accelerometers, feedback actuator of the torquer as system is needed.
Existing magnetic torquer is usually single permanent magnet structure, and effective travel is shorter, and the Magnetic Induction Density Distribution linearity is poor, makes
Closed-loop control system is more complex, and steady-state error is larger.Therefore, it is necessary to design a kind of new permanent magnet moment-meter, increase magnetic torque
The effective travel of device improves the uniformity of gap density distribution.
Summary of the invention
It is an object of the invention to: a kind of big range permanent magnetism torquer is designed, overcomes existing magnetic torquer effective travel short,
Gap density is distributed the problem of poor linearity.
Concrete scheme of the invention is as follows:
A kind of big range permanent magnetism torquer, including magnet steel pedestal (1), outer press ring (2), exterior wing annular permanent-magnet steel (3), interior wing
Annular permanent magnet steel (4), inner pressure ring (5), central support posts (6), coil rack (7) and coil (8)；
n1Block interior wing annular permanent magnet steel (4) constitutes annular, coaxial with ring structure magnet steel pedestal (1), and inside is by center branch
Dagger (6) support, top is fixed by inner pressure ring (5), and lower part is embedded in inside the boss on magnet steel pedestal (1), wherein interior wing annular
The bottom of permanent-magnet steel (4) and central support posts (6) flushes, fan annular permanent magnet steel (4), inner pressure ring (5) and central support posts (6)
Top flush；n2Block exterior wing annular permanent-magnet steel (3) constitutes annular, and ring structure magnet steel pedestal (1) is coaxial, and outside is by external pressure
Ring (2) is fixed, and lower part is embedded in outside the boss on magnet steel pedestal (1), wherein exterior wing annular permanent-magnet steel (3) and outer press ring (2)
Top base flushes.
The angle of each fan annular is 360/n in exterior wing annular permanent-magnet steel (3)2Degree, n2Value be 4 to 16 integer；It is interior
The angle for fanning each fan annular in annular permanent magnet steel (4) is 360/n1Degree, n1Value be 4 to 16 integer.
Coil (8) is wrapped on coil rack (7) and constitutes loop construction, and loop construction is coaxial with central support posts (6), and
It hangs on central support posts (6), and the hollow cylinder structure division of wound around coil (8) is embedded in exterior wing annular permanent-magnet steel
(3) among the air gap between interior wing annular permanent magnet steel (4)；
Exterior wing annular permanent-magnet steel (3) and interior wing annular permanent magnet steel (4) are the low temperatures in 25~85 DEG C of temperature ranges of one kind
Coefficient permanent-magnet material；The residual magnetic flux density direction of exterior wing annular permanent-magnet steel (3) and interior wing annular permanent magnet steel (4) each along
Radial direction and direction is identical, if the outside of agreement exterior wing annular permanent-magnet steel (3) is the pole N, interior wing annular permanent magnet steel (4) it is outer
Side is the pole N, is the pole S on the inside of exterior wing annular permanent-magnet steel (3) and interior wing annular permanent magnet steel (4)；
Air-gap separation is 0.6mm~1.2mm between exterior wing annular permanent-magnet steel (3) and interior wing annular permanent magnet steel (4)；
Magnet steel pedestal (1), outer press ring (2) and central support posts (6) can be made of one formula structure as needed.
Compared to the prior art the present invention has the advantages that
Big range permanent magnetism torquer of the invention, is designed using novel group hinge annular magnet, and one side air gap is effective
Region is long and the Magnetic Induction Density Distribution linearity is good, greatly increases the effective travel of magnetic torquer, and reduce magnetic circuit section
The requirement of structure and loop construction to assembly precision；The magnetic induction intensity of one side air gap is big, reduces the function of magnetic torquer
Consumption, reduces the temperature drift of air gap working region.
Detailed description of the invention
Fig. 1 is a kind of big range permanent magnetism torquer structural schematic diagram of the invention；
Fig. 2 is a kind of big range permanent magnetism torquer magnetic structure schematic diagram of the invention；
Fig. 3 is a kind of big range permanent magnetism torquer loop construction schematic diagram of the invention；
Fig. 4 is a kind of structural schematic diagram of torquer in the prior art；
Fig. 5 is torquer provided by the invention and the torquer shown in Fig. 4 radial magnetic induction intensity on air gap central axes
Effective travel schematic diagram.
Specific embodiment
Combined with specific embodiments below, the present invention is described in more detail.
It is as shown in Figure 1 a kind of big range permanent magnetism torquer structural schematic diagram provided by the invention, arrow indicates magnetic in figure
The direction of steel remanent magnetism.The big range permanent magnetism torquer includes magnet steel pedestal 1, outer press ring 2, exterior wing annular permanent-magnet steel 3, interior
Fan annular permanent magnet steel 4, inner pressure ring 5, central support posts 6, coil rack 7 and coil 8.
As shown in Fig. 2, 1 upper surface of magnet steel pedestal has an annular convex platform, the general 0.2~0.3mm of boss height
Between, 0.6~1.2mm of width, preferably 0.9mm, corresponding width of air gap；The annular convex platform plays fixed exterior wing annular permanent magnet
The effect of steel 3 and interior wing annular permanent magnet steel 4.Interior wing annular permanent magnet steel 4 is SmCo magnet steel, and central angle is 45 degree, and interior wing annular is forever
The outside of magnet steel 4 is the pole N, and inside is the pole S.8 pieces of 4 insides of interior wing annular permanent magnet steel are supported by central support posts 6, lower part insertion
Inside boss on magnet steel pedestal 1, the bottom of middle fan annular permanent magnet steel 4 and central support posts 6 is flushed, interior wing annular permanent magnet
The top of steel 4, inner pressure ring 5 and central support posts 6 flushes, and is fixed by adhesive means.Exterior wing annular permanent-magnet steel 3 is SmCo
Magnet steel, central angle are 45 degree, and the outside of exterior wing annular permanent-magnet steel 3 is the pole N, and inside is the pole S.8 pieces of 3 structures of exterior wing annular permanent-magnet steel
It circularizes, coaxial with the magnet steel pedestal 1 of ring structure, the outside of 8 blocks of exterior wing annular permanent-magnet steels 3 is fixed by outer press ring 2, lower part
It is embedded in outside the boss on magnet steel pedestal 1, wherein the top base of exterior wing annular permanent-magnet steel 3 and outer press ring 2 flushes, finally
It is fixed by adhesive means.
The inner pressure ring 5 is located in the annular groove processed above interior wing annular permanent magnet steel 4.
The height of the exterior wing annular permanent-magnet steel 3 is not less than the height of interior wing annular permanent magnet steel 4.
Coil 8 uses the enameled wire that length is 40 microns for 5 meters, core diameter, it is uniformly and intimately wrapped in coil rack 7
Upper composition loop construction, coil turn is 150 circles, by driving structure needed for coil rack connection.Such as Fig. 3, the coil rack
7 structure is hollow cylinder, top surface and side wall one, and end face center has a centre bore.Loop construction and central support posts
6 is coaxial, and hangs on central support posts 6, and the side wall insertion exterior wing annular of the hollow cylinder structure of wound around coil 8
Among air gap between permanent-magnet steel 3 and interior wing annular permanent magnet steel 4.Electric current is applied to coil 8, edge can be generated to by driving structure
The electromagnetic force of magnet axis direction.
It is a kind of torquer in the prior art shown in Fig. 4, compared with biparting annular magnetic steel design structure of the invention, this
The gap structure effective travel about 3mm for inventing the torquer provided, improves 3 times or more compared to traditional structure about 1mm.
Since magnetic structure is capable of providing bigger to the radial magnetic induction intensity of coil, coil is made to generate identical effective row
Cheng Shi, driving power consumption is lower, and operating power consumption reduces by 40% than traditional structure.
Above-described specific example has carried out the purpose of the present invention, technical scheme and beneficial effects further detailed
It describes in detail bright, it should be understood that the above description is only a specific example of the present invention, is not intended to restrict the invention, it is all in this hair
Bright spirit and any modification within principle, made, equivalent replacement, improve etc., it should be included in protection scope of the present invention
Within.
Claims (7)
1. a kind of big range permanent magnetism torquer, it is characterised in that: including magnet steel pedestal (1), outer press ring (2), exterior wing annular permanent magnet
Steel (3), interior wing annular permanent magnet steel (4), inner pressure ring (5), central support posts (6), coil rack (7) and coil (8)；
Annular convex platform is arranged in magnet steel pedestal (1) upper surface；
n1Block interior wing annular permanent magnet steel (4) constitutes annular, and ring structure magnet steel pedestal (1) is coaxial, with inside by central support posts
(6) it supports, top is fixed by inner pressure ring (5), and lower part is embedded in inside the annular convex platform on magnet steel pedestal (1), and middle fan annular is forever
The bottom of magnet steel (4) and central support posts (6) flushes, the top of fan annular permanent magnet steel (4), inner pressure ring (5) and central support posts (6)
Portion flushes；n2Block exterior wing annular permanent-magnet steel (3) constitutes annular, and ring structure magnet steel pedestal (1) is coaxial, and outside is by outer press ring (2)
Fixed, lower part is embedded in outside the annular convex platform on magnet steel pedestal (1), wherein the top of exterior wing annular permanent-magnet steel (3) and outer press ring (2)
Portion bottom flushes；
Coil (8) is wrapped on coil rack (7) and constitutes loop construction, and loop construction is coaxial with central support posts (6), and hangs
On central support posts (6), coil rack (7) is hollow cylinder structure, the hollow cylinder structure of wound around coil (8)
Sidewall sections are embedded among the air gap between exterior wing annular permanent-magnet steel (3) and interior wing annular permanent magnet steel (4).
2. a kind of big range permanent magnetism torquer according to claim 1, it is characterised in that: exterior wing annular permanent-magnet steel (3) and interior wing
Annular permanent magnet steel (4) is the low-temperature coefficient permanent-magnet material in 25~85 DEG C of temperature ranges.
3. a kind of big range permanent magnetism torquer according to claim 1, it is characterised in that: exterior wing annular permanent-magnet steel (3) and interior wing
The residual magnetic flux density direction of annular permanent magnet steel (4) each along radial direction and direction it is identical, if exterior wing annular permanent-magnet steel (3)
Outside is the pole N, then the outside of interior wing annular permanent magnet steel (4) is the pole N, exterior wing annular permanent-magnet steel (3) and interior wing annular permanent magnet steel (4)
Inside be the pole S.
4. a kind of big range permanent magnetism torquer according to claim 1, it is characterised in that: each in exterior wing annular permanent-magnet steel (3)
The angle of fan annular is 360/n2Degree, n2Value be 4 to 16 integer；The folder of each fan annular in interior wing annular permanent magnet steel (4)
Angle is 360/n1Degree, n1Value be 4 to 16 integer.
5. a kind of big range permanent magnetism torquer according to claim 1, it is characterised in that: exterior wing annular permanent-magnet steel (3) and interior wing
Air-gap separation is 0.6mm~1.2mm between annular permanent magnet steel (4).
6. a kind of big range permanent magnetism torquer according to claim 1, it is characterised in that: magnet steel pedestal (1), outer press ring (2) and
Central support posts (6) are made of one formula structure as needed.
7. a kind of big range permanent magnetism torquer according to claim 1, it is characterised in that: the exterior wing annular permanent-magnet steel (3)
Height is not less than the height of interior wing annular permanent magnet steel (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811181508.0A CN109194085B (en) | 2018-10-11 | 2018-10-11 | Large-stroke permanent magnet torquer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811181508.0A CN109194085B (en) | 2018-10-11 | 2018-10-11 | Large-stroke permanent magnet torquer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109194085A true CN109194085A (en) | 2019-01-11 |
| CN109194085B CN109194085B (en) | 2020-10-23 |
Family
ID=64948071
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811181508.0A Active CN109194085B (en) | 2018-10-11 | 2018-10-11 | Large-stroke permanent magnet torquer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109194085B (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0370462A (en) * | 1989-08-04 | 1991-03-26 | Showa Electric Wire & Cable Co Ltd | Coil motor |
| JPH07123682A (en) * | 1993-10-22 | 1995-05-12 | Yuichi Moriki | Cylindrical linear actuator |
-
2018
- 2018-10-11 CN CN201811181508.0A patent/CN109194085B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0370462A (en) * | 1989-08-04 | 1991-03-26 | Showa Electric Wire & Cable Co Ltd | Coil motor |
| JPH07123682A (en) * | 1993-10-22 | 1995-05-12 | Yuichi Moriki | Cylindrical linear actuator |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109194085B (en) | 2020-10-23 |
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