CN112234796B - Linear motor - Google Patents
Linear motor Download PDFInfo
- Publication number
- CN112234796B CN112234796B CN202010922168.3A CN202010922168A CN112234796B CN 112234796 B CN112234796 B CN 112234796B CN 202010922168 A CN202010922168 A CN 202010922168A CN 112234796 B CN112234796 B CN 112234796B
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- China
- Prior art keywords
- sliding seat
- magnetic
- magnetic steel
- magnetic yoke
- yoke
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- 230000007246 mechanism Effects 0.000 claims abstract description 89
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 62
- 239000010959 steel Substances 0.000 claims abstract description 62
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 17
- 238000004804 winding Methods 0.000 claims description 4
- 238000005452 bending Methods 0.000 abstract description 24
- 230000006872 improvement Effects 0.000 description 8
- 230000033001 locomotion Effects 0.000 description 6
- 238000010586 diagram Methods 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 229910052761 rare earth metal Inorganic materials 0.000 description 1
- 150000002910 rare earth metals Chemical class 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K41/00—Propulsion systems in which a rigid body is moved along a path due to dynamo-electric interaction between the body and a magnetic field travelling along the path
- H02K41/02—Linear motors; Sectional motors
- H02K41/03—Synchronous motors; Motors moving step by step; Reluctance motors
- H02K41/031—Synchronous motors; Motors moving step by step; Reluctance motors of the permanent magnet type
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K11/00—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection
- H02K11/20—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection for measuring, monitoring, testing, protecting or switching
- H02K11/21—Devices for sensing speed or position, or actuated thereby
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K11/00—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection
- H02K11/20—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection for measuring, monitoring, testing, protecting or switching
- H02K11/21—Devices for sensing speed or position, or actuated thereby
- H02K11/22—Optical devices
Abstract
The invention provides a linear motor, which comprises a sliding mechanism, a primary mechanism and a secondary mechanism; the secondary mechanism at least comprises a first secondary unit and a second secondary unit which are arranged along the moving direction of the sliding seat, the first secondary unit comprises a first magnetic yoke and first magnetic steel arranged on the first magnetic yoke, the second secondary unit comprises a second magnetic yoke and second magnetic steel arranged on the second magnetic yoke, the first magnetic yoke and the second magnetic yoke are provided with a long shaft and a short shaft, the long shaft is arranged along the moving direction of the sliding seat, the short shaft is perpendicular to the long shaft, the first magnetic steel is inclined by a first angle from the extending direction of the short shaft towards the moving direction of the sliding seat, and the second magnetic steel is inclined by a second angle from the extending direction of the short shaft away from the moving direction of the sliding seat. The technical scheme solves the technical problem that the linear motor generates bending moment between a rotor and a stator of the motor due to the inclination of the magnetic steel, so that the performance of the motor is affected.
Description
[ field of technology ]
The invention relates to the technical field of motors, in particular to a linear motor.
[ background Art ]
The linear motor is used as a zero-transmission driving mechanism, an intermediate transmission mechanism is not needed, and the linear motor has the advantages of high precision, high dynamic response, high rigidity and the like. In addition, no abrasion of transmission exists, the mechanical loss is very small, the maintenance requirement of the linear motor is low, and the service life is long. Therefore, the application of the linear motor is also becoming more and more widespread.
The permanent magnet synchronous linear motor mostly adopts high-performance rare earth magnetic steel as a secondary, and a cogged steel sheet iron core is used as a primary, so that the output, namely the thrust density, of the motor in unit volume is improved. It is the existence of tooth slot, which causes uneven motor air gap and causes thrust fluctuation, namely tooth slot force. The cogging force affects the smoothness of motion and the low-speed performance of a precision motion system, and also easily causes noise of a high-speed motion system.
The existing oblique pole type linear motor is characterized in that the secondary magnetic steel is inclined to the same direction at a certain angle, and after the magnetic steel is inclined, bending moment is generated between a motor rotor and a stator, so that the motor performance is affected.
Accordingly, it is necessary to provide a novel linear motor to solve the above problems.
[ invention ]
The invention aims to provide a linear motor so as to solve the technical problem that the performance of the motor is affected due to bending moment generated between a rotor and a stator of the motor caused by inclination of magnetic steel in the linear motor in the prior art.
To this end, in an embodiment of the present invention, there is provided a linear motor including: the sliding mechanism, the primary mechanism and the secondary mechanism are arranged on the sliding mechanism at opposite intervals; the sliding mechanism comprises a base and a sliding seat movably arranged on the base, the primary mechanism is fixedly connected with the base, and the secondary mechanism is fixedly connected with the sliding seat; or, the primary mechanism is fixedly connected to the sliding seat, and the secondary mechanism is fixedly connected to the base;
the secondary mechanism at least comprises a first secondary unit and a second secondary unit which are arranged along the moving direction of the sliding seat, the first secondary unit comprises a first magnetic yoke and first magnetic steel arranged on the first magnetic yoke, the second secondary unit comprises a second magnetic yoke and second magnetic steel arranged on the second magnetic yoke, the first magnetic yoke and the second magnetic yoke are provided with a long shaft and a short shaft, the long shaft is arranged along the moving direction of the sliding seat, the short shaft is perpendicular to the long shaft, the first magnetic steel is inclined by a first angle from the extending direction of the short shaft to the moving direction of the sliding seat, and the second magnetic steel is inclined by a second angle from the extending direction of the short shaft to the moving direction of the sliding seat.
As a refinement, the first angle is equal to the second angle.
As an improvement, the primary mechanism includes an iron core provided with the tooth slot and a winding provided on the iron core.
As an improvement, the base comprises a bottom wall and side walls which are opposite and are arranged on the bottom wall at intervals, and the sliding seat is movably connected with one end, far away from the bottom wall, of the side walls.
As an improvement, the iron core is arranged on the sliding seat, and the first magnetic yoke and the second magnetic yoke are arranged on the bottom wall; and the notch of the tooth slot faces the first magnetic steel and the second magnetic steel.
As an improvement, the iron core is disposed on the bottom wall, the first yoke and the second yoke are disposed on the slide, and the notch of the tooth slot faces the first magnetic steel and the second magnetic steel.
As an improvement, the first yoke is spaced apart from the second yoke.
As an improvement, the sliding mechanism further comprises a guide rail disposed between the side wall and the slider.
As an improvement, a first guide groove connected with the guide rail is formed in one end, far away from the bottom wall, of the side wall, and a second guide groove connected with the guide rail is formed in the sliding seat.
As an improvement, the linear motor further comprises a grating ruler arranged on the bottom wall and a grating ruler reading head arranged on the sliding seat opposite to the grating ruler.
The invention has the beneficial effects that: in the invention, the secondary mechanism at least comprises a first secondary unit and a second secondary unit which are arranged along the moving direction of the sliding seat, the first magnetic yoke and the second magnetic yoke are provided with a long shaft which is arranged along the moving direction of the sliding seat and a short shaft which is perpendicular to the long shaft, the first magnetic steel arranged on the first magnetic yoke inclines by a first angle from the extending direction of the short shaft towards the moving direction of the sliding seat, so that a first bending moment is generated between the first secondary unit and the primary mechanism, the second magnetic steel arranged on the second magnetic yoke inclines by a second angle from the extending direction of the short shaft away from the moving direction of the sliding seat, so that a second bending moment is generated between the second secondary unit and the primary mechanism, and therefore, the inclination direction of the first magnetic steel is opposite to the inclination direction of the second magnetic steel, and the first bending moment and the second bending moment can be mutually offset with respect to the whole linear motor. According to the technical scheme, on one hand, thrust fluctuation between the primary mechanism and the secondary mechanism is reduced through the inclined first magnetic steel and the inclined second magnetic steel, and the integral thrust of the linear motor can be improved; on the other hand, the inclination direction of the first magnetic steel is opposite to the inclination direction of the second magnetic steel, so that the technical problem that the motor performance is affected due to the fact that a bending moment is generated between a rotor and a stator of the motor due to the inclination of the magnetic steel is solved.
[ description of the drawings ]
FIG. 1 is a schematic diagram of an overall structure of a linear motor according to an embodiment of the present invention;
FIG. 2 is a front view of FIG. 1;
FIG. 3 is an exploded view of FIG. 1;
FIG. 4 is a schematic diagram of a secondary mechanism of a linear motor according to an embodiment of the present invention;
FIG. 5 is a cross-sectional view taken along the direction A-A in FIG. 1;
FIG. 6 is a schematic diagram of the overall structure of a linear motor according to another embodiment of the present invention;
fig. 7 is a front view of fig. 6.
[ detailed description ] of the invention
In order that the invention may be readily understood, a more complete description of the invention will be rendered by reference to the appended drawings. Preferred embodiments of the present invention are shown in the drawings. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
It will be understood that when an element is referred to as being "fixed to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like are used herein for illustrative purposes only.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and/or" as used herein includes any and all combinations of one or more of the associated listed items.
The present invention provides a linear motor 10, referring to fig. 1, 2, 6 and 7, the linear motor 10 includes a sliding mechanism 13, a primary mechanism 11 and a secondary mechanism 12; the sliding mechanism 13 includes a base 131 and a slide 132 movably disposed on the base 131, and the primary mechanism 11 and the secondary mechanism 12 are disposed on the sliding mechanism 13 opposite to each other with a predetermined physical gap, so that a thrust force generated by interaction of the primary mechanism 11 and the secondary mechanism 12 can push the primary mechanism 11 or the secondary mechanism 12 to perform a linear motion. For example, the primary mechanism 11 is fixed on the base 131, the secondary mechanism 12 is fixed on the slide 132, and the secondary mechanism 12 slides relative to the primary mechanism 11; for another example, the primary mechanism 11 is fixed to the slider 132, the secondary mechanism 12 is fixed to the base 131, and the primary mechanism 11 slides relative to the secondary mechanism 12.
As shown in fig. 3 to 5, the secondary mechanism 12 includes at least a first secondary unit 121 and a second secondary unit 122 arranged along the moving direction of the slider 132, the first secondary unit 121 includes a first yoke 1212 and a first magnetic steel 1211 provided on the first yoke 1212, the second secondary unit 122 includes a second yoke 1222 and a second magnetic steel 1221 provided on the second yoke 1222, the first yoke 1212 and the second yoke 1222 have a long axis provided along the moving direction of the slider 132 and a short axis provided perpendicular to the long axis, the first magnetic steel 1211 is inclined from the extending direction of the short axis toward the moving direction of the slider 132 by a first angle, and the second magnetic steel 1221 is inclined from the extending direction of the short axis by a second angle away from the moving direction of the slider 132. The directions of the major axis and the minor axis are shown in fig. 1, 4 and 6.
In the present invention, the secondary mechanism 12 includes at least the first secondary unit 121 and the second secondary unit 122 along the moving direction of the slider 132, the first yoke 1212 and the second yoke 1222 have a long axis disposed along the moving direction of the slider 132 and a short axis disposed perpendicular to the long axis, the first magnetic steel 1211 disposed on the first yoke 1212 is inclined from the extending direction of the short axis toward the moving direction of the slider 132 by a first angle such that a first bending moment is generated between the first secondary unit 121 and the primary mechanism 11, and the second magnetic steel 1221 disposed on the second yoke 1222 is inclined from the extending direction of the short axis away from the moving direction of the slider 132 by a second angle such that a second bending moment is generated between the second secondary unit 122 and the primary mechanism 11, and thus the inclination direction of the first magnetic steel 1211 is opposite to the inclination direction of the second magnetic steel 1221, and the first bending moment and the second bending moment can cancel each other out with respect to the linear motor 10 as a whole. On the one hand, the technical proposal reduces the thrust fluctuation generated between the primary mechanism 11 and the secondary mechanism 12 through the inclined first magnetic steel 1211 and the inclined second magnetic steel 1221, and can promote the integral thrust of the linear motor 10; on the other hand, by arranging the inclination direction of the first magnetic steel 1211 opposite to the inclination direction of the second magnetic steel 1221, the technical problem that the linear motor 10 generates bending moment between a rotor and a stator of the motor due to the inclination of the magnetic steel so as to influence the performance of the motor is solved.
Taking the example that the primary mechanism 11 is fixed on the base 132 and the secondary mechanism 12 is fixed on the slide 132, the electromagnetic pushing force acts on the first secondary unit 121 to be decomposed into a first component force with the same moving direction as the slide 132 and a second component force perpendicular to the first magnetic steel 1211, and the first secondary unit 121 generates a first bending moment due to the second component force; after the electromagnetic thrust acts on the second secondary unit 122, the electromagnetic thrust is decomposed into a third component force with the same moving direction as the sliding seat 132 and a fourth component force perpendicular to the second magnetic steel 1221, the second primary unit 112 generates a second bending moment due to the fourth component force, and the inclination directions of the first magnetic steel 1211 and the second magnetic steel 1221 are opposite, so that the second component force is opposite to the acting direction of the fourth component force, and the first bending moment generated by the second component force and the second bending moment generated by the fourth component force are opposite to each other in the rotating direction, thereby achieving the effect of bending moment offset.
Note that, if the secondary mechanism 12 includes at least the first secondary unit 121 and the second secondary unit 122 that are disposed along the moving direction of the slide 132, the secondary mechanism 12 is further configured to include a plurality of secondary units such as the first secondary unit 121, the second secondary unit 122, the third secondary unit, and the fourth secondary unit that are disposed along the moving direction of the slide 132, and the inclination directions of the magnetic steels of any two secondary units are opposite to achieve the effect of canceling the bending moment. And simultaneously, the secondary mechanism 12 inclines poles, so that the thrust fluctuation when the motor operates is reduced, and the positions of two or more secondary units are reasonably configured to further reduce the thrust fluctuation when the linear motor 10 operates.
Preferably, the first angle is equal to the second angle, the first angle of the first magnetic steel 1211 inclined from the extending direction of the short axis toward the moving direction of the slide 132 is equal to the second angle of the second magnetic steel 1221 inclined from the extending direction of the short axis away from the moving direction of the slide 132, as shown in fig. 4, the first angle is +.a, the second angle is +.b, the magnitude of the angle a and the magnitude of the angle b are equal, and thus the magnitude of the first bending moment received by the first magnetic steel 1211 is the same as the magnitude of the second bending moment received by the second magnetic steel 1221, and the directions are opposite, so that the first bending moment and the second bending moment can be almost completely offset.
The primary mechanism 11 includes an iron core 111 provided with tooth slots 11a and a winding 112 provided on the iron core 111. The winding 112 is powered by an ac power source, and the air gap between the first secondary unit 121, the second secondary unit 122 and the primary mechanism 11 generates a travelling wave magnetic field, and when the travelling wave magnetic field is cut by the first secondary unit 121 and the second secondary unit 122, an electromotive force is induced and a current is generated, and the current and the magnetic field in the air gap act to generate electromagnetic thrust. When the primary mechanism 11 is fixed, the electromagnetic thrust pushes the secondary mechanism 12 to move linearly; when the secondary mechanism 12 is fixed, the electromagnetic thrust pushes the primary mechanism 11 to move linearly.
In some embodiments, the base 131 includes a bottom wall 1311, opposite side walls 1312 disposed on the bottom wall 1311 at intervals, and the slide base 132 is movably connected to an end of the side walls 1312 remote from the bottom wall 1311. The primary mechanism 11 and the secondary mechanism 12 are located in a space formed by the base 131 and the slider 132, and perform relative linear movement by sliding provided at the slider 132 and the opposite side walls 1312.
In one embodiment, the sliding mechanism 13 further includes a guide rail 133 disposed between the side wall 1312 and the sliding base 132, so that the sliding base 132 can slide smoothly relative to the base 131.
Referring to fig. 3, a first guide groove 1312a is formed in an end of the side wall 1312 away from the bottom wall 1311, and a second guide groove 132a is formed in the slider 132, and is connected to the guide rail 133.
In some embodiments, the guide rail 133 is fixedly connected to the side wall 1312 through the first guide groove 1312a, and the slide 132 slides relative to the guide rail 133 through the second guide groove 132 a; or, the guide rail 133 is fixedly connected with the sliding seat 132 through the second guide groove 132a, and the guide rail 133 slides relative to the side wall 1312 through the first guide groove 1312a to drive the sliding seat 132 to move linearly.
In one embodiment, referring to fig. 1 and 2, the iron core 111 is disposed on the slider 132, and the first yoke 1212 and the second yoke 1222 are disposed on the base 131, specifically, the slots 11a of the iron core 111 are notched toward the first magnetic steel 1211 disposed on the first yoke 1212 and the second magnetic steel 1221 disposed on the second yoke 1222. That is, the primary mechanism 11 is provided on the slider 132 through the iron core 111, and the secondary mechanism 12 is provided on the base 131 through the first yoke 1212 and the second yoke 1222; the secondary mechanism 12 is thus fixed, and the primary mechanism 11 moves linearly with the carriage 132 relative to the secondary mechanism 12 under thrust.
In one embodiment, referring to fig. 6 and 7, the iron core 111 is disposed on the bottom wall 1311, and the first yoke 1212 and the second yoke 1222 are disposed on the slide 132, specifically, the slot 11a of the iron core 111 is notched toward the first magnetic steel 1211 disposed on the first yoke 1212 and the second magnetic steel 1221 disposed on the second yoke 1222. That is, the primary mechanism 11 is provided on the base 131 through the iron core 111, and the secondary mechanism 12 is provided on the slider 132 through the first yoke 1212 and the second yoke 1222; the primary mechanism 11 is thus fixed, and the secondary mechanism 12 moves linearly with the carriage 132 relative to the primary mechanism 11 under thrust.
Referring to fig. 5, preferably, the first yoke 1212 and the second yoke 1222 are spaced apart, and the distance between the first yoke 1212 and the second yoke 1222 can be adjusted according to actual needs to avoid the first secondary unit 121 and the second secondary unit 122 being abutted by bending moment.
The linear motor 10 further includes a grating 141 provided on the bottom wall 1311 and a grating read head 142 provided on the carriage 132 opposite the grating 141. When the grid ruler reading head 142 moves linearly along with the sliding seat 132, the grid ruler reading head 142 also moves synchronously on the grid ruler 141, so that the relative displacement between the primary mechanism 11 and the secondary mechanism 12 is detected, and the linear motion of the linear motor 10 is controlled.
The technical features of the above embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.
The foregoing examples illustrate only a few embodiments of the invention, which are described in detail and are not to be construed as limiting the scope of the claims. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the invention, which are all within the scope of the invention. Accordingly, the scope of protection of the present invention is to be determined by the appended claims.
Claims (3)
1. A linear motor, comprising: the sliding mechanism, the primary mechanism and the secondary mechanism are arranged on the sliding mechanism at opposite intervals; the sliding mechanism comprises a base and a sliding seat movably arranged on the base, the primary mechanism is fixedly connected with the base, and the secondary mechanism is fixedly connected with the sliding seat; or, the primary mechanism is fixedly connected to the sliding seat, and the secondary mechanism is fixedly connected to the base;
the secondary mechanism at least comprises a first secondary unit and a second secondary unit which are arranged along the moving direction of the sliding seat, the first secondary unit comprises a first magnetic yoke and first magnetic steel arranged on the first magnetic yoke, the second secondary unit comprises a second magnetic yoke and second magnetic steel arranged on the second magnetic yoke, the first magnetic yoke and the second magnetic yoke are provided with a long axis arranged along the moving direction of the sliding seat and a short axis perpendicular to the long axis, the first magnetic steel is inclined by a first angle from the extending direction of the short axis towards the moving direction of the sliding seat, and the second magnetic steel is inclined by a second angle from the extending direction of the short axis away from the moving direction of the sliding seat;
the first magnetic yoke and the second magnetic yoke are arranged at intervals;
the secondary mechanism is further arranged to comprise a plurality of secondary units arranged along the moving direction of the sliding seat, the inclination directions of the magnetic steels of any two secondary units are opposite, and the secondary mechanism is oblique;
the first angle is equal to the second angle;
the primary mechanism comprises an iron core provided with tooth grooves and a winding arranged on the iron core;
the base comprises a bottom wall and side walls which are opposite to each other and are arranged on the bottom wall at intervals, and the sliding seat is movably connected with one end of the side wall, which is far away from the bottom wall;
the iron core is arranged on the sliding seat, and the first magnetic yoke and the second magnetic yoke are arranged on the bottom wall; the notch of the tooth slot faces the first magnetic steel and the second magnetic steel;
the iron core is arranged on the bottom wall, the first magnetic yoke and the second magnetic yoke are arranged on the sliding seat, and the notch of the tooth slot faces the first magnetic steel and the second magnetic steel;
the linear motor further comprises a grating ruler arranged on the bottom wall and a grating ruler reading head arranged on the sliding seat relative to the grating ruler.
2. The linear motor of claim 1, wherein the slide mechanism further comprises a rail disposed between the side wall and the carriage.
3. The linear motor of claim 2, wherein a first guide slot is formed in an end of the side wall, which is far away from the bottom wall, and is in guide connection with the guide rail, and a second guide slot is formed in the sliding seat and is in guide connection with the guide rail.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010922168.3A CN112234796B (en) | 2020-09-04 | 2020-09-04 | Linear motor |
| PCT/CN2020/123203 WO2022047928A1 (en) | 2020-09-04 | 2020-10-23 | Linear motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010922168.3A CN112234796B (en) | 2020-09-04 | 2020-09-04 | Linear motor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112234796A CN112234796A (en) | 2021-01-15 |
| CN112234796B true CN112234796B (en) | 2024-04-02 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010922168.3A Active CN112234796B (en) | 2020-09-04 | 2020-09-04 | Linear motor |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN112234796B (en) |
| WO (1) | WO2022047928A1 (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001112231A (en) * | 1999-10-01 | 2001-04-20 | Toyota Autom Loom Works Ltd | Linear induction motor |
| CN202034884U (en) * | 2011-01-07 | 2011-11-09 | 青岛同日电机有限公司 | Permanent magnet linear synchronous motor |
| CN103532337A (en) * | 2013-10-25 | 2014-01-22 | 肖俊东 | Permanent magnet linear motor and permanent magnet array component thereof, as well as permanent magnet motor and component thereof |
| CN108736687A (en) * | 2018-05-31 | 2018-11-02 | 浙江大学 | A kind of line inductance electromotor based on V-groove secondary structure |
| CN109787447A (en) * | 2019-01-29 | 2019-05-21 | 哈尔滨工业大学 | A kind of two-freedom motion platform based on double secondary linear motors |
| CN110649782A (en) * | 2019-09-12 | 2020-01-03 | 珠海格力电器股份有限公司 | Primary iron core staggered driving structure, linear motor and numerical control equipment |
| CN111224530A (en) * | 2019-11-25 | 2020-06-02 | 合肥工业大学 | Permanent magnet synchronous linear motor with bilateral asymmetric V-shaped magnetic poles |
| CN111564949A (en) * | 2020-05-28 | 2020-08-21 | 歌尔股份有限公司 | Linear motor |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104779773B (en) * | 2015-03-24 | 2017-10-31 | 沈阳工业大学 | A kind of low reluctance force fluctuation permanent magnetic linear electric motors of V types structure |
-
2020
- 2020-09-04 CN CN202010922168.3A patent/CN112234796B/en active Active
- 2020-10-23 WO PCT/CN2020/123203 patent/WO2022047928A1/en active Application Filing
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001112231A (en) * | 1999-10-01 | 2001-04-20 | Toyota Autom Loom Works Ltd | Linear induction motor |
| CN202034884U (en) * | 2011-01-07 | 2011-11-09 | 青岛同日电机有限公司 | Permanent magnet linear synchronous motor |
| CN103532337A (en) * | 2013-10-25 | 2014-01-22 | 肖俊东 | Permanent magnet linear motor and permanent magnet array component thereof, as well as permanent magnet motor and component thereof |
| CN108736687A (en) * | 2018-05-31 | 2018-11-02 | 浙江大学 | A kind of line inductance electromotor based on V-groove secondary structure |
| CN109787447A (en) * | 2019-01-29 | 2019-05-21 | 哈尔滨工业大学 | A kind of two-freedom motion platform based on double secondary linear motors |
| CN110649782A (en) * | 2019-09-12 | 2020-01-03 | 珠海格力电器股份有限公司 | Primary iron core staggered driving structure, linear motor and numerical control equipment |
| CN111224530A (en) * | 2019-11-25 | 2020-06-02 | 合肥工业大学 | Permanent magnet synchronous linear motor with bilateral asymmetric V-shaped magnetic poles |
| CN111564949A (en) * | 2020-05-28 | 2020-08-21 | 歌尔股份有限公司 | Linear motor |
Also Published As
| Publication number | Publication date |
|---|---|
| CN112234796A (en) | 2021-01-15 |
| WO2022047928A1 (en) | 2022-03-10 |
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