CN209120034U - A kind of linear motor with lightweight mover - Google Patents
A kind of linear motor with lightweight mover Download PDFInfo
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- CN209120034U CN209120034U CN201822186249.2U CN201822186249U CN209120034U CN 209120034 U CN209120034 U CN 209120034U CN 201822186249 U CN201822186249 U CN 201822186249U CN 209120034 U CN209120034 U CN 209120034U
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- mover
- iron core
- permanent magnet
- linear motor
- lightweight
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Abstract
The utility model discloses a kind of linear motors with lightweight mover, including mover assembly and stator module, mover assembly includes a mover skeleton, there are two card slots for mover skeleton tool, two card slots are fixedly installed with the first permanent magnet and the second permanent magnet respectively, and the magnetizing direction of the first permanent magnet and the second permanent magnet is vertical direction.Mover skeleton and the first permanent magnet and the second permanent magnet encapsulating integrally constitute platypelloid type mover assembly.It is equipped with stator module in at least side of platypelloid type mover assembly, stator module includes the first iron core, the second iron core and the magnetic bridge being arranged between the first iron core and the second iron core, and the first iron core and the second iron core are equipped with coil.The utility model uses the platypelloid type mover assembly of the frivolous encapsulation of one, have the advantages that lightweight, force oscillation are small, and the power output and electric current of linear motor are substantially proportional to relationship, simple installation and power output is big, can effectively drive compliant mechanism to reach high accuracy positioning or realize that high speed positions.
Description
Technical field
The utility model relates to motor field, specifically a kind of linear motor with lightweight mover.
Background technique
Linear motor converts electrical energy into mechanical energy by electromagnetic interaction, directly provides linear motion or thrust.
Linear motor is not since it needs machine driving, thus the nonlinearity erron in system largely reduces, and drives the straight of mode using straight
Line motor is widely used in high-accuracy locating platform.In order to further increase precision, traditional slidingtype guide rail is no longer suitable
With in micro-/ nano positioning occasion, compliant mechanism is widely adopted, and compliant mechanism reaches positioning purpose by stress deformation.
When below hundred micron order strokes, Piezoelectric Ceramic compliant mechanism can be used, but since material itself limits, piezoelectric ceramics
Deformation range can not be more than hundred microns.Piezoelectric ceramics can use looper structure, improve stroke range, but service life is short is
Maximum limiting factor.When stroke reaches grade, voice coil motor or linear motor can be used, one side compliant mechanism
Compact designed causes the space for leaving motor for small, the undercapacity of motor small in size, it is difficult to drive compliant mechanism, another party
The driving force effect position of face compliant mechanism and direction are specifically, to cause motor that can not place.
Therefore, for drive the actuator of compliant mechanism need to meet it is claimed below: 1. mover quality are small；2. mover and machine
The connection of structure is simply, conveniently；3. power output is big, small in size；4. power output is steady；5. temperature rise is low；But existing techniques of linear motor without
Method meets requirements above.
Utility model content
The utility model is directed to above-mentioned state of the art, and provides a kind of linear motor with lightweight mover, adopts
With the platypelloid type mover assembly of the frivolous encapsulation of one, have the advantages that lightweight, force oscillation are small, and the output of linear motor
Power and electric current are substantially proportional to relationship, simple installation and power output is big, can effectively drive compliant mechanism reach high accuracy positioning or
Realize that high speed positions.
Technical solution adopted by the utility model to solve the above technical problems is as follows: a kind of straight line with lightweight mover
Motor, including mover assembly and stator module, mover assembly include a mover skeleton, and mover skeleton tool is there are two card slot, and two
A card slot is fixedly installed with the first permanent magnet and the second permanent magnet respectively, and the magnetizing direction of the first permanent magnet and the second permanent magnet is
Vertical direction.Mover skeleton and the first permanent magnet and the second permanent magnet encapsulating integrally constitute platypelloid type mover assembly.Flat
At least side of type mover assembly is equipped with stator module, and stator module includes the first iron core, the second iron core and is arranged first
Magnetic bridge between iron core and the second iron core, the first iron core and the second iron core are equipped with coil.
Above-mentioned the first iron core and the second iron core is respectively provided with two teeth portion, and is formed between two teeth portion of the first iron core
One coil slot is formed with the second coil slot between two teeth portion of the second iron core.First Line ring recess and the second coil slot are through magnetic bridge
Partition, is respectively provided with independent slot magnetic circuit.Several independent coils are embedded in First Line ring recess and the second coil slot.
Raised with the first opposite protrusion and second at two adjacent online ring recess of teeth portion, the protrusion of the first protrusion is long
Degree is greater than the protrusion length with the second protrusion.First permanent magnet and the second permanent magnet are in the first protrusion and the second protrusion always
Lower section.
Above-mentioned coil uses conductive material, is inlaid in the first iron core and the second iron core after coiling molding, and with the
One iron core and the second iron core encapsulating constitute an entirety.
Above-mentioned mover skeleton is using high-intensitive, low-resistivity un-conducted magnetic material, the first permanent magnet and the second permanent magnet
Thickness and mover skeleton consistency of thickness.Mover skeleton is equipped with the threaded hole of external connection.
When the magnetizing direction of above-mentioned first permanent magnet and the second permanent magnet is identical, First Line ring recess and the second coil slot are distinguished
It is embedded in several independent coils.
When the magnetizing direction of above-mentioned first permanent magnet and the second permanent magnet is opposite, First Line ring recess and the second coil slot are common
It is embedded in several independent coils.
The two sides up and down of above-mentioned platypelloid type mover assembly are respectively equipped with a stator module, the stator module pair of upper and lower two sides
Claim arrangement.
The side of above-mentioned platypelloid type mover assembly is equipped with a stator module, and the other side is equipped with a balance platypelloid type mover
The guidance set of component Normal Force.
Above-mentioned guidance set is the guiding iron core of not coil.
Compared with prior art, the utility model passes through the permanent magnet high mechanical strength that mover skeleton is reinforced, integral packaging
The platypelloid type mover assembly of composition is not easy to vibrate, and what be can be convenient connect with compliant mechanism, and stator module also can be convenient
Installed from side.And since platypelloid type mover assembly thickness is thin, quality is smaller, it is able to ascend the dynamic of system
Energy.By magnetic bridge separate the first iron core and the second iron core be it is independent, the shape of respective teeth portion can reduce motor Slot force.
It is not mechanically connected between mover assembly and stator module, also without frictional force and backlass, only electromagnetic interaction.It is fixed
Sub- iron core thermal conductivity well can quickly conductive coil generate heat, to limit temperature rise.
Detailed description of the invention
Fig. 1 is the assembling decomposition diagram of linear motor in embodiment 1.
Fig. 2 is the cross-sectional view of teeth portion in embodiment 1.
Fig. 3 is the overall structure diagram of linear motor in embodiment 1.
Appended drawing reference of the Fig. 1 into Fig. 3 are as follows: stator module 1, the 11, first protrusion of teeth portion 11a, the second protrusion 11b, first
Iron core 12, First Line ring recess 12a, the second iron core 13, the second coil slot 13a, coil 2, magnetic bridge 3, mover skeleton 4, first are forever
Magnet 51, the second permanent magnet 52, cooling fin 6.
Specific embodiment
Below by way of specific embodiments and drawings, the principles of the present invention and operation are described in detail, but this reality
High accuracy positioning is not limited to novel application field.By example 1 for example, the utility model is applied to high accuracy positioning
Field, by example 2 for example, the utility model is applied to high speed positioning field.
Embodiment 1:
As shown in Figure 1, the linear motor with lightweight mover of the present embodiment, including mover assembly and stator module 1.
Mover assembly includes a mover skeleton 4, and for the tool of mover skeleton 4 there are two card slot, two card slots are fixedly installed with first forever respectively
The magnetizing direction of magnet 51 and the second permanent magnet 52, the first permanent magnet 51 and the second permanent magnet 52 is vertical direction.Mover skeleton 4
Platypelloid type mover assembly is integrally constituted with the first permanent magnet 51 and 52 encapsulating of the second permanent magnet.
It is equipped with stator module 1 in at least side of platypelloid type mover assembly, stator module 1 includes the first iron core 12, second
Iron core 13 and the magnetic bridge 3 being arranged between the first iron core 12 and the second iron core 13, on the first iron core 12 and the second iron core 13
Equipped with coil 2.
First iron core 12 and the second iron core 13 are respectively provided with two teeth portion 11, make between two teeth portion 11 of the first iron core 12
There is First Line ring recess 12a, the second coil slot 13a is formed between two teeth portion 11 of the second iron core 13.First Line ring recess 12a and
Two wires ring recess 13a separates through magnetic bridge 3, is respectively provided with independent slot magnetic circuit.In First Line ring recess 12a and the second coil slot 13a
It is interior to be embedded with several independent coils 2.
Coil 2 uses conductive material, is inlaid in the first iron core 12 and the second iron core 13 after coiling molding, and with first
Iron core 12 and 13 encapsulating of the second iron core constitute an entirety.
The un-conducted magnetic material of the use of mover skeleton 4 high intensity, low-resistivity, the first permanent magnet 51 and the second permanent magnet 52
The consistency of thickness of thickness and mover skeleton 4.Mover skeleton 4 is equipped with the threaded hole of external connection.
For mover skeleton 4 using 304 stainless steels of demagnetization processing, the first permanent magnet 51 and the second permanent magnet 52 use Ru-Fe-Mn
Permanent magnet and the card slot for being caught in its both ends, whole to use resin encapsulating, mover becomes one piece of flat hexahedron, whole matter at this time
It measures smaller.
The bottom of mover skeleton 4 provides external connection, and mover skeleton 4 can be rigidly connected to soft by glue or screw
Property mechanism, compliant mechanism is a kind of guiding mechanism, is usually used in high accuracy positioning, flexible in the strong input of its direction of motion
Mechanism reaches positioning purpose by flexible deformation, and mover skeleton 4 is only capable of under the guide function of compliant mechanism along one at this time
Trunnion axis movement.
11 bottom end of teeth portion of first iron core 12 as shown in Figure 2 and the second iron core 13 uses polygon, and teeth portion 11 is about line
Ring recess is asymmetric.There is the first opposite protrusion 11a and the second protrusion 11b at the adjacent online ring recess of two teeth portion 11,
The protrusion length of first protrusion 11a is greater than the protrusion length with the second protrusion 11b.First permanent magnet 51 and the second permanent magnet 52 begin
It is in the lower section of the first protrusion 11a and the second protrusion 11b eventually.
When mover moves, the both ends of permanent magnet 5 are always under the bottom of polygon.The shape of teeth portion 11 makes, no power
When, when permanent magnet 5 moves left and right, by smaller Slot force.Meanwhile magnetic bridge 3 can widen or narrow, and make First Line ring recess
The adjustable interval of 12a and the second coil slot 13a, and the Slot force of the First Line ring recess 12a and the second coil slot 13a separated
Can cancel out each other a part.
When the first permanent magnet 51 is identical with the magnetizing direction of the second permanent magnet 52, First Line ring recess 12a and the second coil
Slot 13a is embedded in several independent coils 2 respectively.When the magnetizing direction of the first permanent magnet 51 and the second permanent magnet 52 is opposite, the
One coil slot 12a and the second coil slot 13a are embedded in several independent coils 2 jointly.
In the present embodiment, the two sides up and down of platypelloid type mover assembly are respectively equipped with a stator module 1, and upper and lower two sides are determined
Sub-component 1 is arranged symmetrically.The present embodiment can also be deformed suitably, and a stator module 1 only is arranged in side, makes such as in platypelloid type
The side of mover assembly is equipped with a stator module 1, and the other side is equipped with leading for a balance platypelloid type mover assembly Normal Force
To component.Guidance set can be the guiding iron core of not coil, for balancing the Normal Force of flat pattern mover assembly.
In the present embodiment, the first iron core 12 and the second iron core 13 use Q235 steel, possess good magnetic property, magnetic bridge
3 use aluminium alloy, and the first iron core 12 and the second iron core 13 are left and right two parts, enameled wire insertion first by the partition of magnetic bridge 3
In coil slot 12a and the second coil slot 13a, and encapsulating is integrated.
Entire stator module 1 is fixed on casing, and when coil 2 is powered, permanent magnet 5 and coil 2 interact, permanent magnet 5
By electromagnetic force, can be moved back and forth in air gap, as shown by arrows in Figure 3, mover small range can move back and forth in air gap,
Compliant mechanism is driven, to realize positioning function.Optionally, increase cooling fin 6 on iron core, so that under linear motor temperature rise
Drop improves positioning accuracy.
Embodiment 2:
In the present embodiment, mover skeleton 4 is using 304 stainless steels handled, the first permanent magnet 51 and the second permanent magnet of demagnetizing
52 using Ru-Fe-Mn's permanent magnets and are caught in the card slots at its both ends, whole to use resin encapsulating, at this time mover become one piece it is flat
Hexahedron, total quality are smaller.
Different from example 1, mover skeleton 4, which is mounted on, to rub in small linear guide, such as decussation roller guide rail, due to straight
Limitation of the line guide rail to movement, mover skeleton 4 are only capable of moving along linear guide axis.
First iron core 12 and the second iron core 13 use silicon steel plate stacking, direction parallel water plane are laminated, to reduce vortex
Loss.First iron core 12 and the second iron core 13 possess good magnetic property, and stator module 1 is two and about platypelloid type mover
Component is symmetrical above and below, 304 stainless steels that magnetic bridge 3 is handled using demagnetization, to reduce eddy-current loss.First iron core 12 and second
Iron core 13 is left and right two parts by the partition of magnetic bridge 3, has First Line ring recess 12a and the second coil slot 13a, first coil
The shape of slot 12a and the second coil slot 13a be it is the same, coil 2 uses enameled wire, is embedded in First Line ring recess 12a and the second line
In ring recess 13a.
By adjusting initial position, so that the center line of First Line ring recess 12a and the second coil slot 13a, with the first permanent magnetism
Body 51 and the alignment of 52 center line of the second permanent magnet.The teeth portion 11 of first iron core 12 as shown in Figure 2 and the second iron core 13, use is polygon
Shape, when mover moves, the both ends of the first permanent magnet 51 and the second permanent magnet 52 are always under the bottom of polygon.
Entire stator module 1 is fixed on casing, and when coil 2 is powered, permanent magnet 5 and coil 2 interact, the first permanent magnetism
Body 51 and the second permanent magnet 52 are passed through the electric current of high frequency by electromagnetic force in coil 2, for mover since quality is small, the electromechanical time is short,
Can high speed the high-speed motion on guide rail, fast implement positioning.
Optionally, increase cooling fin 6 on stator core, so that linear motor temperature rise declines, improve positioning accuracy.
The linear motor with lightweight mover of the utility model, has the advantages that lightweight, force oscillation are small, and straight
Line motor power output and electric current are substantially proportional to relationship, simple installation and power output is big, can effectively drive compliant mechanism to reach high-precision
Degree positioning realizes that high speed positions.
Claims (10)
1. a kind of linear motor with lightweight mover, including mover assembly and stator module (1), it is characterised in that: described
Mover assembly include a mover skeleton (4), described mover skeleton (4) tool there are two card slot, fix respectively by two card slots
First permanent magnet (51) and the second permanent magnet (52) be installed, first permanent magnet (51) and the second permanent magnet (52) are magnetized
Direction is vertical direction；The mover skeleton (4) and the first permanent magnet (51) and the integral structure of the second permanent magnet (52) encapsulating
At platypelloid type mover assembly；The stator module (1), the stator pack are equipped in at least side of platypelloid type mover assembly
Part (1) includes the first iron core (12), the second iron core (13) and is arranged between the first iron core (12) and the second iron core (13)
Magnetic bridge (3), first iron core (12) and the second iron core (13) are equipped with coil (2).
2. the linear motor according to claim 1 with lightweight mover, it is characterised in that: first iron core
(12) and the second iron core (13) is respectively provided with two teeth portion (11), is formed with first between two teeth portion (11) of the first iron core (12)
Coil slot (12a) is formed with the second coil slot (13a) between two teeth portion (11) of the second iron core (13)；The first coil
Slot (12a) and the second coil slot (13a) separate through magnetic bridge (3), are respectively provided with independent slot magnetic circuit；In First Line ring recess
Several independent coils (2) are embedded in (12a) and the second coil slot (13a).
3. the linear motor according to claim 2 with lightweight mover, it is characterised in that: two adjacent teeth portion
(11) with opposite first raised (11a) and second raised (11b), the protrusion length of first raised (11a) at online ring recess
Greater than the protrusion length with second raised (11b)；First permanent magnet (51) and the second permanent magnet (52) are always in the first protrusion
The lower section of (11a) and second raised (11b).
4. the linear motor according to claim 1 with lightweight mover, it is characterised in that: the coil (2) is adopted
With conductive material, the first iron core (12) is inlaid in after coiling molding and the second iron core (13) is interior, and with the first iron core (12) and
(13) encapsulating of second iron core constitutes an entirety.
5. the linear motor according to claim 1 with lightweight mover, it is characterised in that: the mover skeleton
(4) using high-intensitive, low-resistivity un-conducted magnetic material, the thickness of first permanent magnet (51) and the second permanent magnet (52)
With the consistency of thickness of mover skeleton (4)；The mover skeleton (4) is equipped with the threaded hole of external connection.
6. the linear motor according to claim 2 with lightweight mover, it is characterised in that: first permanent magnet
(51) when identical with the magnetizing direction of the second permanent magnet (52), the First Line ring recess (12a) and the second coil slot (13a) are respectively
It is embedded in several independent coils (2).
7. the linear motor according to claim 2 with lightweight mover, it is characterised in that: first permanent magnet
(51) when and the magnetizing direction of the second permanent magnet (52) is opposite, the First Line ring recess (12a) and the second coil slot (13a) are common
It is embedded in several independent coils (2).
8. according to claim 1 to the linear motor described in 7 any claims with lightweight mover, it is characterised in that:
The two sides up and down of the platypelloid type mover assembly are respectively equipped with a stator module (1), and the stator module (1) of upper and lower two sides is symmetrical
Arrangement.
9. according to claim 1 to the linear motor described in 7 any claims with lightweight mover, it is characterised in that:
The side of the platypelloid type mover assembly is equipped with a stator module (1), and the other side is equipped with a balance platypelloid type mover assembly
The guidance set of Normal Force.
10. the linear motor according to claim 9 with lightweight mover, it is characterised in that: the guidance set
For the guiding iron core of not coil.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822186249.2U CN209120034U (en) | 2018-12-22 | 2018-12-22 | A kind of linear motor with lightweight mover |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822186249.2U CN209120034U (en) | 2018-12-22 | 2018-12-22 | A kind of linear motor with lightweight mover |
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| Publication Number | Publication Date |
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| CN209120034U true CN209120034U (en) | 2019-07-16 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822186249.2U Active CN209120034U (en) | 2018-12-22 | 2018-12-22 | A kind of linear motor with lightweight mover |
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| CN (1) | CN209120034U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109450216A (en) * | 2018-12-22 | 2019-03-08 | 中国科学院宁波材料技术与工程研究所 | A kind of linear motor with lightweight mover |
| CN110768505A (en) * | 2019-11-13 | 2020-02-07 | 南京理工大学 | Flat type single phase alternating current permanent magnet linear motor of two stators |
| CN113175871A (en) * | 2021-04-29 | 2021-07-27 | 南京理工大学 | Positioning platform equipment |
-
2018
- 2018-12-22 CN CN201822186249.2U patent/CN209120034U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109450216A (en) * | 2018-12-22 | 2019-03-08 | 中国科学院宁波材料技术与工程研究所 | A kind of linear motor with lightweight mover |
| CN110768505A (en) * | 2019-11-13 | 2020-02-07 | 南京理工大学 | Flat type single phase alternating current permanent magnet linear motor of two stators |
| CN113175871A (en) * | 2021-04-29 | 2021-07-27 | 南京理工大学 | Positioning platform equipment |
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