CN205566071U - High thrust magnetic resistance linear electric motor - Google Patents
High thrust magnetic resistance linear electric motor Download PDFInfo
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- CN205566071U CN205566071U CN201620239954.2U CN201620239954U CN205566071U CN 205566071 U CN205566071 U CN 205566071U CN 201620239954 U CN201620239954 U CN 201620239954U CN 205566071 U CN205566071 U CN 205566071U
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- mover
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- linear electric
- air gap
- motion
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Abstract
The utility model provides a high thrust magnetic resistance linear electric motor, include: the stator and the active cell that have the iron core, the setting is at the coil of the inslot of stator core or active cell iron core, and this coil is set to to be produced the magnetic field force and order about the active cell and be linear motion for the stator when receiving the external current excitation, and distribute air gap between stator and active cell, this air gap is on a parallel with the direction of motion of active cell, wherein, the air gap is presented the side set form and is distributed on the circumferencial direction in the cross section of perpendicular to active cell direction of motion. The utility model discloses an in linear electric motor's the design for the air gap is on a parallel with the direction of motion and has the extension on the perpendicular to direction of motion, causes the circumference linear expectation on the air gap perpendicular to direction of motion from this, has improved the coupling area between stator and the active cell, is favorable to the assist.
Description
Technical field
This utility model relates to techniques of linear motor field, in particular to a kind of high thrust magnetic resistance straight-line electric
Machine.
Background technology
Linear electric motors are that electric energy is directly changed into linear motion mechanical energy by one, turn without any centre
The actuating device of converting mechanism.Linear electric motors are typically considered the electric rotating machine a kind of deformation in configuration aspects,
It can be regarded as an electric rotating machine and radially cuts open, then evens up differentiation and forms.Along with automatically controlling
Technology and the high speed development of microcomputer, propose higher to the positioning precision of all kinds of automatic control systems
Requirement, in this case, traditional electric rotating machine is added the linear motion of a set of mapping device composition and is driven
Dynamic device, far from meeting the requirement of modern control system, adds linear electric motors itself and has structure
Simply, positioning precision is high and reaction is fast, susceptiveness advantages of higher, and world many countries is all being studied, sent out
Exhibition and applicable line motor so that the application of linear electric motors is more and more wider.
Linear electric motors are mainly used in three aspects: one is to be applied to automatic control system, this kind of application scenario
The most；Next to that as the long-term driving motor run continuously；Three is to apply at needs short time, short distance
From interior offer huge linear motion can device in.But the pushing force density of current linear electric motors is little, air gap
The close low shortcoming of magnetic, limits the application of linear electric motors.
Drum type brake linear electric motors as shown in Figure 1 and Figure 2 and quad straight motor, its stator (fixed part)
And have cylindric air gap between mover (movable part), air gap is parallel to the direction of motion, when stator armature around
When the electric current of group is bigger, easily cause that magnetic circuit is saturated, air gap flux density is distorted and the defect such as iron loss increase,
Limit maximum overload ability and the pushing force density of motor.
Utility model content
First aspect of the present utility model is directed to a kind of high thrust magnetic resistance linear electric motors, including:
There is stator and the mover of iron core；
Being arranged on the coil in the groove of stator core or mover iron core, this coil is provided in by external electrical
During stream excitation, generation magnetic field force orders about mover and does axial linear movement relative to stator；And
The air gap being distributed between stator and mover, this air gap is parallel to the direction of motion of mover；
Wherein, described air gap in the cross section being perpendicular to the mover direction of motion in a circumferential direction in zigzag tooth
Shape is distributed.
Only should be appreciated that all combinations of aforementioned concepts and the extra design described in greater detail below
Can be viewed as in the case of such design is the most conflicting the disclosure utility model theme one
Part.It addition, all combinations of theme required for protection are considered as the utility model theme of the disclosure
A part.
Can be more fully appreciated with from the following description in conjunction with accompanying drawing this utility model teaching aforementioned and its
His aspect, embodiment and feature.The spy of other additional aspect such as illustrative embodiments of the present utility model
Levy and/or beneficial effect will be the most obvious, or concrete real by instruct according to this utility model
Execute in the practice of mode and learn.
Accompanying drawing explanation
Accompanying drawing is not intended to drawn to scale.In the accompanying drawings, illustrate in each figure is each identical or near
Patibhaga-nimitta ingredient together can be indicated by the same numeral.For clarity, in each figure,
The most each ingredient is the most labeled.Now, will be by example and this practicality is described in reference to the drawings
The embodiment of novel various aspects, wherein:
Fig. 1 is the schematic diagram of cylindrical shape magnetic resistance linear electric motors in prior art.
Fig. 2 is the schematic diagram of square magnetic resistance linear electric motors in prior art.
Fig. 3 is the structural representation of the magnetic resistance linear electric motors according to some embodiment of this utility model.
Fig. 4 is the signal of the sectional position of the magnetic resistance linear electric motors according to some embodiment of this utility model
Figure.
Fig. 5 is that a certain profile of tooth of the magnetic resistance linear electric motors according to some embodiment of this utility model coordinates position
The schematic diagram put.
Fig. 6 is the schematic diagram (line of the stator of the magnetic resistance linear electric motors according to some embodiment of this utility model
Circle represents the most in the figure).
Fig. 7 is the structural representation of the magnetic resistance linear electric motors according to other embodiments of this utility model.
Fig. 8 is showing of the sectional position of the magnetic resistance linear electric motors according to some other embodiment of this utility model
It is intended to.
Detailed description of the invention
In order to know more about technology contents of the present utility model, especially exemplified by specific embodiment and coordinate institute's accompanying drawings explanation
As follows.
It is described with reference to each side of the present utility model in the disclosure, illustrates shown in the drawings of many
Embodiment.Embodiment of the disclosure and must not be intended to include all aspects of the present utility model.Should be appreciated that
Multiple design presented hereinbefore and embodiment, and those design and the embodiment party described in more detail below
Formula can in many ways in any one is implemented, this is because design disclosed in the utility model and reality
Execute example and be not limited to any embodiment.It addition, the discloseder aspects of this utility model can be used alone,
Or otherwise any appropriately combined use disclosed in this utility model.
Shown in Fig. 3, Fig. 4, according to embodiment of the present utility model, a kind of high thrust magnetic resistance linear electric motors
100, it is configured to cylindrical shape, including mover 110, stator 120 and the gas between stator and mover
Gap 130.
Mover 110, is provided in when stator 120 energising produces magnetic flux and drives its relative stator 120 to do axially
Linear motion.
In conjunction with Fig. 3,6, stator 120, there is stator core 121 and coil 122, it is fixed that coil 122 is positioned at
In the groove of sub-iron core.
In conjunction with Fig. 4, air gap 130 is distributed between stator and mover, and this air gap is parallel to the direction of motion of mover.
In this example, air gap 130 on the cross section being perpendicular to the mover direction of motion at least in part in concavo-convex
Staggered dentation distribution.
Extend rather than in prior art it is to say, air gap 130 is perpendicular in the mover direction of motion have
Annular sawtooth design structure.
By such design, increase the length that air gap is perpendicularly to the direction of movement, improve stator and mover
Between coupling area, be conducive to increasing thrust, improve the pushing force density of motor.
As shown in Fig. 3, Fig. 4, Fig. 5, described mover 110 includes yoke 111 and is arranged on yoke surfaces
Salient pole 112, the surface configuration of described salient pole 112 has a plurality of first profile of tooth 112a, described stator core
The a plurality of teeth groove 123as adaptive with described first profile of tooth 112a it are provided with on 121.
Such as Fig. 3, Fig. 6, described first profile of tooth 112a is roughly the same with the profile of tooth of teeth groove 123a, all uses ladder
Shape structure designs.
In other examples, the profile of tooth of the first profile of tooth 112a and teeth groove 123a can also use triangle, side
One in shape, semicircle, sinusoidal, involute shape.
In order to obtain more preferable thrust augmentation effect, a plurality of first profiles of tooth 112a on mover 110 equably
It is distributed, and a plurality of teeth groove 123a is evenly distributed on stator 120.
It is noted that linear electric motors also include the guider not represented, it is connected use with described mover
Guiding in constraint mover motion.
Fig. 7 illustrates the schematic diagram of the magnetic resistance linear electric motors being configured to square structure, and Fig. 8 is this square magnetic resistance
The schematic cross-section of linear electric motors.As it can be seen, these linear electric motors 200 have aforesaid mover 210 equally
With stator 220, and the air gap 230 being distributed between stator and mover, this air gap 230 is parallel to mover
The direction of motion.
By Fig. 7, shown in 8, label 211 is expressed as mover yoke, shown in comparison diagram 2, at magnetic in this example
Being provided with the first profile of tooth 211a on yoke, label 221 is expressed as stator core, sets in the groove of stator core 221
It is equipped with on winding, and the tooth of stator core the tooth being again provided with being mutually adapted with described first profile of tooth 211a
Groove 223.So, by mover 210 after being installed in stator 220, be energized especially winding to stator 220
Produce magnetic flux, produce captivation via the first profile of tooth 221a, air gap 230 and teeth groove 223, drive mover
210 relative stator 220 axial linear movement.Thus obtaining, air gap 230 is being perpendicular to mover 210 side of moving
To cross section at least in part in concavo-convex staggered dentation distribution.I.e. air gap 230 is perpendicular to mover motion
There is on direction extension rather than annular sawtooth design structure of the prior art.
By such design, increase the length that air gap is perpendicularly to the direction of movement, improve stator and mover
Between coupling area, be conducive to increasing thrust, improve the pushing force density of motor.
Such as the magnetic resistance linear electric motors of Fig. 3, Fig. 7, shown in Fig. 4, Fig. 8, its running is as follows:
Being energized to the stator coil 122 of magnetic resistance linear electric motors makes it produce magnetic flux, and this magnetic flux is through stator 120
The first profile of tooth 112a of teeth groove 123a, air gap 130 and mover and close, produce captivation；
The mover 120 of magnetic resistance linear electric motors is done axial straight line by the effect of described captivation relative to stator
Motion.
Meanwhile, when mover moves, also by the guide effect of guider so that it is do along same direction
Linear motion.
The magnetic flux that magnetic resistance linear electric motors utilize magnetic resistance minimum principle, i.e. coil to produce closes along the path that magnetic resistance is minimum
Close, utilize stator to pull mover for linear motion with the suction of the tooth interpolar of mover.Shown in Fig. 3-5, front
State the magnetic resistance linear electric motors that embodiment proposes, the radially even distribution of air gap between stator and mover and in footpath
To having extension, at least in part in concavo-convex staggered dentation on the cross section being perpendicular to the mover direction of motion
Distribution, the profile of tooth of magnetic flux profile of tooth, air gap and the mover through stator tooth pole that after coil electricity, it produces and close
Closing, the captivation size of generation is by the magnetic induction (or density of line of magnetic force) in air gap and the phase between profile of tooth
Interaction area effect is relatively big, by the design that the utility model proposes, thereby to increase coupling area, carries
High pushing force density.
In conjunction with the magnetic resistance linear electric motors of the prior art shown in Fig. 1, Fig. 2, this utility model is straight at tradition magnetic resistance
On the basis of line electric machine structure, stator and mover are designed as many toothings, as shown in Figure 3,4, as with
Upper described, the linear electric motors of program design have a following remarkable advantage: 1) effectively increase stator with
The interaction area of mover tooth interpolar, the magnetic line of force is respectively closed by tooth top, tooth root and the flank of tooth；2) increase
The circumferential lengths of air gap, and due to the dispersion of magnetic line of force closed path, the magnetic effectively reducing air gap is satisfied
And degree, in the case of ensureing that permeability magnetic material magnetic flux is undersaturated, it is allowed to be passed through bigger electric current, thus produce
Raw bigger captivation.
Although this utility model is disclosed above with preferred embodiment, so it is not limited to this utility model.
This utility model art has usually intellectual, without departing from spirit of the present utility model and model
In enclosing, when being used for a variety of modifications and variations.Therefore, protection domain of the present utility model is when regarding claim
Book defined person be as the criterion.
Claims (5)
1. high thrust magnetic resistance linear electric motors, it is characterised in that including:
There is stator and the mover of iron core；
Being arranged on the coil in the groove of stator core or mover iron core, this coil is provided in by external electrical
During stream excitation, generation magnetic field force orders about mover and does axial linear movement relative to stator；And
The air gap being distributed between stator and mover, this air gap is parallel to the direction of motion of mover；
Wherein, described air gap in the cross section being perpendicular to the mover direction of motion in a circumferential direction in zigzag tooth
Shape is distributed.
High thrust magnetic resistance linear electric motors the most according to claim 1, it is characterised in that described mover bag
Including yoke and be arranged on the salient pole of yoke surfaces, the surface configuration of described salient pole has a plurality of first profile of tooth,
The a plurality of teeth groove adaptive with described first profile of tooth it are provided with on the tooth of stator core.
High thrust magnetic resistance linear electric motors the most according to claim 2, it is characterised in that described first tooth
Shape is identical, uses triangle, trapezoidal, square, semicircle, sinusoidal, the one in involute shape.
High thrust magnetic resistance linear electric motors the most according to claim 2, it is characterised in that described a plurality of
First profile of tooth is evenly distributed on mover, and a plurality of teeth groove is evenly distributed on stator.
High thrust magnetic resistance linear electric motors the most according to claim 1, it is characterised in that described straight-line electric
Machine also includes guider, is connected to retrain the guiding of mover motion with described mover.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620239954.2U CN205566071U (en) | 2016-03-25 | 2016-03-25 | High thrust magnetic resistance linear electric motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620239954.2U CN205566071U (en) | 2016-03-25 | 2016-03-25 | High thrust magnetic resistance linear electric motor |
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| Publication Number | Publication Date |
|---|---|
| CN205566071U true CN205566071U (en) | 2016-09-07 |
Family
ID=56815539
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620239954.2U Active CN205566071U (en) | 2016-03-25 | 2016-03-25 | High thrust magnetic resistance linear electric motor |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107231077A (en) * | 2016-03-25 | 2017-10-03 | 南京理工大学 | High thrust magnetic resistance linear electric motors |
| CN107834490A (en) * | 2017-11-07 | 2018-03-23 | 北京特种机械研究所 | Suitable for the electric mover feed cable guiding mechanism of electromagnetic launch |
-
2016
- 2016-03-25 CN CN201620239954.2U patent/CN205566071U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107231077A (en) * | 2016-03-25 | 2017-10-03 | 南京理工大学 | High thrust magnetic resistance linear electric motors |
| CN107834490A (en) * | 2017-11-07 | 2018-03-23 | 北京特种机械研究所 | Suitable for the electric mover feed cable guiding mechanism of electromagnetic launch |
| CN107834490B (en) * | 2017-11-07 | 2019-09-20 | 北京特种机械研究所 | Electric mover feed cable guiding mechanism suitable for electromagnetic launch |
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| GR01 | Patent grant |